Commit Graph

1308 Commits

Author SHA1 Message Date
Oleg Endo
da5c1bbe97 re PR libgcc/78804 ([RX] -m64bit-doubles does not work)
libgcc/
	PR libgcc/78804
	* fp-bit.h: Remove FLOAT_BIT_ORDER_MISMATCH.
	* fp-bit.c (pack_d, unpack_d): Remove special cases for
	FLOAT_BIT_ORDER_MISMATCH.
	* config/arc/t-arc: Remove FLOAT_BIT_ORDER_MISMATCH.

From-SVN: r277752
2019-11-03 12:09:26 +00:00
Jim Wilson
8dc56a2244 RISC-V: Build soft-float divide routines for -mno-fdiv.
Using -mno-fdiv gives linker errors unless we build the missing divide
routines in libgcc always.  There is at least one university project
designing RISC-V parts without FP divide that wants to use the option.

	libgcc/
	* config/riscv/t-softfp32 (softfp_extra): Add FP divide routines

From-SVN: r277723
2019-11-01 13:35:12 -07:00
Jozef Lawrynowicz
91c64455e8 lib2hw_mul.S: Fix wrong syntax in branch instruction.
2019-10-23  Jozef Lawrynowicz  <jozef.l@mittosystems.com>

	* config/msp430/lib2hw_mul.S: Fix wrong syntax in branch instruction.
	s/RESULT_LO/RESLO, s/RESULT_HI/RESHI, s/MPY_OP1/MPY, 
	s/MPY_OP1_S/MPYS, s/MAC_OP1/MAC, s/MPY_OP2/OP2, s/MAC_OP2/OP2.
	Define symbols for 32-bit and f5series hardware multiply
	register addresses.
	Replace hard-coded register addresses with symbols.
	Fix "_mspabi*" typo.
	Fix whitespace.
	* config/msp430/lib2mul.c: Add comment.

From-SVN: r277340
2019-10-23 16:52:47 +00:00
John David Anglin
85093ac6c9 fptr.c (_dl_read_access_allowed): Change argument to unsigned int.
* config/pa/fptr.c (_dl_read_access_allowed): Change argument to
	unsigned int.  Adjust callers.
	(__canonicalize_funcptr_for_compare): Change plabel type to volatile
	unsigned int *.  Load relocation offset before function pointer.
	Add barrier to ensure ordering.

From-SVN: r277015
2019-10-15 22:17:14 +00:00
John David Anglin
1aea083d4b lib2funcs.S (__gcc_plt_call): Load branch target to %r21.
* config/pa/lib2funcs.S (__gcc_plt_call): Load branch target to %r21.
	Load PIC register after branch target.  Fix white space.
	* config/pa/milli64.S ($$dyncall): Separate LINUX and non LINUX
	implementations.  Load PIC register after branch target.  Don't
	clobber function pointer when it points to function descriptor.
	Use nullification instead of branch in LINUX implementation.

From-SVN: r276925
2019-10-12 19:40:42 +00:00
John David Anglin
c49af82c5f fptr.c: Disable -Warray-bounds warning.
* config/pa/fptr.c: Disable -Warray-bounds warning.

From-SVN: r276556
2019-10-03 23:51:42 +00:00
Richard Henderson
9e46fd072b libgcc: Rebuild autoconf files
* config.in, configure: Re-rebuild with stock autoconf 2.69,
        not the ubuntu modified 2.69.

From-SVN: r276135
2019-09-25 16:04:58 -07:00
Richard Henderson
58d169ba9f aarch64: Configure for sys/auxv.h in libgcc for lse-init.c
PR target/91833
	* config/aarch64/lse-init.c: Include auto-target.h.  Disable
	initialization if !HAVE_SYS_AUXV_H.
	* configure.ac (AC_CHECK_HEADERS): Add sys/auxv.h.
	* config.in, configure: Rebuild.

From-SVN: r276134
2019-09-25 15:51:55 -07:00
Richard Henderson
88a51d68c4 aarch64: Fix store-exclusive in load-operate LSE helpers
PR target/91834
	* config/aarch64/lse.S (LDNM): Ensure STXR output does not
	overlap the inputs.

From-SVN: r276133
2019-09-25 14:48:41 -07:00
Shaokun Zhang
761e6bb9f7 [AARCH64] Add support for new control bits CTR_EL0.DIC and CTR_EL0.IDC
The DCache clean & ICache invalidation requirements for instructions
to be data coherence are discoverable through new fields in CTR_EL0.
Let's support the two bits if they are enabled, the CPU core will
not execute the unnecessary DCache clean or Icache Invalidation
instructions.

2019-09-25  Shaokun Zhang  <zhangshaokun@hisilicon.com>

	* config/aarch64/sync-cache.c (__aarch64_sync_cache_range): Add support for
	CTR_EL0.IDC and CTR_EL0.DIC.

From-SVN: r276122
2019-09-25 12:38:59 +00:00
Christophe Lyon
76c93295f3 Revert [ARM/FDPIC v6 13/24] [ARM] FDPIC: Force LSB bit for PC in Cortex-M architecture
This is causing regressions when mixing with user code compiled in ARM mode.

2019-09-20  Christophe Lyon  <christophe.lyon@st.com>

	Revert:
	2019-09-10  Christophe Lyon  <christophe.lyon@st.com>
		Mickaël Guêné <mickael.guene@st.com>

	* config/arm/unwind-arm.c (_Unwind_VRS_Set): Handle thumb-only
	architecture.

From-SVN: r276001
2019-09-20 15:32:20 +02:00
Richard Henderson
33befddcb8 aarch64: Add out-of-line functions for LSE atomics
This is the libgcc part of the interface -- providing the functions.
Rationale is provided at the top of libgcc/config/aarch64/lse.S.

	* config/aarch64/lse-init.c: New file.
	* config/aarch64/lse.S: New file.
	* config/aarch64/t-lse: New file.
	* config.host: Add t-lse to all aarch64 tuples.

From-SVN: r275967
2019-09-19 07:36:38 -07:00
Christophe Lyon
84818dbb70 [ARM/FDPIC v6 13/24] [ARM] FDPIC: Force LSB bit for PC in Cortex-M architecture
Without this, when we are unwinding across a signal frame we can jump
to an even address which leads to an exception.

This is needed in __gnu_persnality_sigframe_fdpic() when restoring the
PC from the signal frame since the PC saved by the kernel has the LSB
bit set to zero.

2019-09-10  Christophe Lyon  <christophe.lyon@st.com>
	Mickaël Guêné <mickael.guene@st.com>

	libgcc/
	* config/arm/unwind-arm.c (_Unwind_VRS_Set): Handle thumb-only
	architecture.


Co-Authored-By: Mickaël Guêné <mickael.guene@st.com>

From-SVN: r275575
2019-09-10 09:58:44 +02:00
Christophe Lyon
ae1152e5a0 [ARM/FDPIC v6 11/24] [ARM] FDPIC: Add support to unwind FDPIC signal frame
2019-09-10  Christophe Lyon  <christophe.lyon@st.com>
	Mickaël Guêné <mickael.guene@st.com>

	libgcc/
	* unwind-arm-common.inc (ARM_SET_R7_RT_SIGRETURN)
	(THUMB2_SET_R7_RT_SIGRETURN, FDPIC_LDR_R12_WITH_FUNCDESC)
	(FDPIC_LDR_R9_WITH_GOT, FDPIC_LDR_PC_WITH_RESTORER)
	(FDPIC_FUNCDESC_OFFSET, ARM_NEW_RT_SIGFRAME_UCONTEXT)
	(ARM_UCONTEXT_SIGCONTEXT, ARM_SIGCONTEXT_R0, FDPIC_T2_LDR_R12_WITH_FUNCDESC)
	(FDPIC_T2_LDR_R9_WITH_GOT, FDPIC_T2_LDR_PC_WITH_RESTORER): New.
	(__gnu_personality_sigframe_fdpic): New.
	(get_eit_entry): Add FDPIC signal frame support.


Co-Authored-By: Mickaël Guêné <mickael.guene@st.com>

From-SVN: r275573
2019-09-10 09:55:20 +02:00
Christophe Lyon
5d727a4b20 [ARM/FDPIC v6 06/24] [ARM] FDPIC: Add support for c++ exceptions
The main difference with existing support is that function addresses
are function descriptor addresses instead. This means that all code
dealing with function pointers now has to cope with function
descriptors instead.

For the same reason, Linux kernel helpers can no longer be called by
dereferencing their address, so we implement wrappers that directly
call the kernel helpers.

When restoring a function address, we also have to restore the FDPIC
register value (r9).

2019-09-10  Christophe Lyon  <christophe.lyon@st.com>
	Mickaël Guêné <mickael.guene@st.com>

	gcc/
	* ginclude/unwind-arm-common.h (unwinder_cache): Add reserved5
	field.

	libgcc/
	* config/arm/linux-atomic.c (__kernel_cmpxchg): Add FDPIC support.
	(__kernel_dmb): Likewise.
	(__fdpic_cmpxchg): New function.
	(__fdpic_dmb): New function.
	* config/arm/unwind-arm.h (FDPIC_REGNUM): New define.
	(gnu_Unwind_Find_got): New function.
	(_Unwind_decode_typeinfo_ptr): Add FDPIC support.
	* unwind-arm-common.inc (UCB_PR_GOT): New.
	(funcdesc_t): New struct.
	(get_eit_entry): Add FDPIC support.
	(unwind_phase2): Likewise.
	(unwind_phase2_forced): Likewise.
	(__gnu_Unwind_RaiseException): Likewise.
	(__gnu_Unwind_Resume): Likewise.
	(__gnu_Unwind_Backtrace): Likewise.
	* unwind-pe.h (read_encoded_value_with_base): Likewise.

	libstdc++/
	* libsupc++/eh_personality.cc (get_ttype_entry): Add FDPIC
	support.


Co-Authored-By: Mickaël Guêné <mickael.guene@st.com>

From-SVN: r275568
2019-09-10 09:47:49 +02:00
Christophe Lyon
11189793b6 [ARM/FDPIC v6 05/24] [ARM] FDPIC: Fix __do_global_dtors_aux and frame_dummy generation
In FDPIC, we need to make sure __do_global_dtors_aux and frame_dummy
are referenced by their address, not by pointers to the function
descriptors.

2019-09-10  Christophe Lyon  <christophe.lyon@st.com>
	Mickaël Guêné <mickael.guene@st.com>

	libgcc/
	* libgcc/crtstuff.c: Add support for FDPIC.


Co-Authored-By: Mickaël Guêné <mickael.guene@st.com>

From-SVN: r275567
2019-09-10 09:43:37 +02:00
Christophe Lyon
b1e21e5a5d [ARM/FDPIC v6 02/24] [ARM] FDPIC: Handle arm*-*-uclinuxfdpiceabi in configure scripts
The new arm-uclinuxfdpiceabi target behaves pretty much like
arm-linux-gnueabi. In order to enable the same set of features, we
have to update several configure scripts that generally match targets
like *-*-linux*: in most places, we add *-uclinux* where there is
already *-linux*, or uclinux* when there is already linux*.

In gcc/config.gcc and libgcc/config.host we use *-*-uclinuxfdpiceabi
because there is already a different behaviour for *-*uclinux* target.

In libtool.m4, we use uclinuxfdpiceabi in cases where ELF shared
libraries support is required, as uclinux does not guarantee that.

2019-09-10  Christophe Lyon  <christophe.lyon@st.com>

	config/
	* futex.m4: Handle *-uclinux*.
	* tls.m4 (GCC_CHECK_TLS): Likewise.

	gcc/
	* config.gcc: Handle *-*-uclinuxfdpiceabi.

	libatomic/
	* configure.tgt: Handle arm*-*-uclinux*.
	* configure: Regenerate.

	libgcc/
	* config.host: Handle *-*-uclinuxfdpiceabi.

	libitm/
	* configure.tgt: Handle *-*-uclinux*.
	* configure: Regenerate.

	* libtool.m4: Handle uclinuxfdpiceabi.

From-SVN: r275564
2019-09-10 09:37:00 +02:00
Jose E. Marchesi
91dfef9610 GCC port for eBPF
This patch series introduces a port of GCC to eBPF, which is a virtual
machine that resides in the Linux kernel.  Initially intended for
user-level packet capture and filtering, eBPF is nowadays generalized
to serve as a general-purpose infrastructure also for non-networking
purposes.

The binutils support is already upstream.  See
https://sourceware.org/ml/binutils/2019-05/msg00306.html.

ChangeLog:

	* MAINTAINERS: Add myself as the maintainer of the eBPF port.
	Remove myself from Write After Approval section.
	* configure.ac: Support for bpf-*-* targets.
	* configure: Regenerate.

contrib/ChangeLog:

	* config-list.mk (LIST): Disable go in bpf-*-* targets.

gcc/ChangeLog:

	* doc/invoke.texi (Option Summary): Cover eBPF.
	(eBPF Options): New section.
	* doc/extend.texi (BPF Built-in Functions): Likewise.
	(BPF Kernel Helpers): Likewise.
	* config.gcc: Support for bpf-*-* targets.
	* common/config/bpf/bpf-common.c: New file.
	* config/bpf/t-bpf: Likewise.
	* config/bpf/predicates.md: Likewise.
	* config/bpf/constraints.md: Likewise.
	* config/bpf/bpf.opt: Likewise.
	* config/bpf/bpf.md: Likewise.
	* config/bpf/bpf.h: Likewise.
	* config/bpf/bpf.c: Likewise.
	* config/bpf/bpf-protos.h: Likewise.
	* config/bpf/bpf-opts.h: Likewise.
	* config/bpf/bpf-helpers.h: Likewise.
	* config/bpf/bpf-helpers.def: Likewise.

gcc/testsuite/ChangeLog:

	* gcc.dg/builtins-config.h: eBPF doesn't support C99 standard
	functions.
	* gcc.c-torture/compile/20101217-1.c: Add a function prototype for
	printf.
	* gcc.c-torture/compile/20000211-1.c: Skip if target bpf-*-*.
	* gcc.c-torture/compile/poor.c: Likewise.
	* gcc.c-torture/compile/pr25311.c: Likewise.
	* gcc.c-torture/compile/pr39928-1.c: Likewise.
	* gcc.c-torture/compile/pr70061.c: Likewise.
	* gcc.c-torture/compile/920501-7.c: Likewise.
	* gcc.c-torture/compile/20000403-1.c: Likewise.
	* gcc.c-torture/compile/20001226-1.c: Likewise.
	* gcc.c-torture/compile/20030903-1.c: Likewise.
	* gcc.c-torture/compile/20031125-1.c: Likewise.
	* gcc.c-torture/compile/20040101-1.c: Likewise.
	* gcc.c-torture/compile/20040317-2.c: Likewise.
	* gcc.c-torture/compile/20040726-1.c: Likewise.
	* gcc.c-torture/compile/20051216-1.c: Likewise.
	* gcc.c-torture/compile/900313-1.c: Likewise.
	* gcc.c-torture/compile/920625-1.c: Likewise.
	* gcc.c-torture/compile/930421-1.c: Likewise.
	* gcc.c-torture/compile/930623-1.c: Likewise.
	* gcc.c-torture/compile/961004-1.c: Likewise.
	* gcc.c-torture/compile/980504-1.c: Likewise.
	* gcc.c-torture/compile/980816-1.c: Likewise.
	* gcc.c-torture/compile/990625-1.c: Likewise.
	* gcc.c-torture/compile/DFcmp.c: Likewise.
	* gcc.c-torture/compile/HIcmp.c: Likewise.
	* gcc.c-torture/compile/HIset.c: Likewise.
	* gcc.c-torture/compile/QIcmp.c: Likewise.
	* gcc.c-torture/compile/QIset.c: Likewise.
	* gcc.c-torture/compile/SFset.c: Likewise.
	* gcc.c-torture/compile/SIcmp.c: Likewise.
	* gcc.c-torture/compile/SIset.c: Likewise.
	* gcc.c-torture/compile/UHIcmp.c: Likewise.
	* gcc.c-torture/compile/UQIcmp.c: Likewise.
	* gcc.c-torture/compile/USIcmp.c: Likewise.
	* gcc.c-torture/compile/consec.c: Likewise.
	* gcc.c-torture/compile/limits-fndefn.c: Likewise.
	* gcc.c-torture/compile/lll.c: Likewise.
	* gcc.c-torture/compile/parms.c: Likewise.
	* gcc.c-torture/compile/pass.c: Likewise.
	* gcc.c-torture/compile/pp.c: Likewise.
	* gcc.c-torture/compile/pr32399.c: Likewise.
	* gcc.c-torture/compile/pr34091.c: Likewise.
	* gcc.c-torture/compile/pr34688.c: Likewise.
	* gcc.c-torture/compile/pr37258.c: Likewise.
	* gcc.c-torture/compile/pr37327.c: Likewise.
	* gcc.c-torture/compile/pr37381.c: Likewise.
	* gcc.c-torture/compile/pr37669-2.c: Likewise.
	* gcc.c-torture/compile/pr37669.c: Likewise.
	* gcc.c-torture/compile/pr37742-3.c: Likewise.
	* gcc.c-torture/compile/pr44063.c: Likewise.
	* gcc.c-torture/compile/pr48596.c: Likewise.
	* gcc.c-torture/compile/pr51856.c: Likewise.
	* gcc.c-torture/compile/pr54428.c: Likewise.
	* gcc.c-torture/compile/pr54713-1.c: Likewise.
	* gcc.c-torture/compile/pr54713-2.c: Likewise.
	* gcc.c-torture/compile/pr54713-3.c: Likewise.
	* gcc.c-torture/compile/pr55921.c: Likewise.
	* gcc.c-torture/compile/pr70240.c: Likewise.
	* gcc.c-torture/compile/pr70355.c: Likewise.
	* gcc.c-torture/compile/pr82052.c: Likewise.
	* gcc.c-torture/compile/pr83487.c: Likewise.
	* gcc.c-torture/compile/pr86122.c: Likewise.
	* gcc.c-torture/compile/pret-arg.c: Likewise.
	* gcc.c-torture/compile/regs-arg-size.c: Likewise.
	* gcc.c-torture/compile/structret.c: Likewise.
	* gcc.c-torture/compile/uuarg.c: Likewise.
	* gcc.dg/20001009-1.c: Likewise.
	* gcc.dg/20020418-1.c: Likewise.
	* gcc.dg/20020426-2.c: Likewise.
	* gcc.dg/20020430-1.c: Likewise.
	* gcc.dg/20040306-1.c: Likewise.
	* gcc.dg/20040622-2.c: Likewise.
	* gcc.dg/20050603-2.c: Likewise.
	* gcc.dg/20050629-1.c: Likewise.
	* gcc.dg/20061026.c: Likewise.
	* gcc.dg/Warray-bounds-3.c: Likewise.
	* gcc.dg/Warray-bounds-30.c: Likewise.
	* gcc.dg/Wframe-larger-than-2.c: Likewise.
	* gcc.dg/Wframe-larger-than.c: Likewise.
	* gcc.dg/Wrestrict-11.c: Likewise.
	* gcc.c-torture/compile/20000804-1.c: Likewise.
	* lib/target-supports.exp (check_effective_target_trampolines):
	Adapt to eBPF.
	(check_effective_target_indirect_jumps): Likewise.
	(check_effective_target_nonlocal_goto): Likewise.
	(check_effective_target_global_constructor): Likewise.
	(check_effective_target_return_address): Likewise.
	* gcc.target/bpf/bpf.exp: New file.
	* gcc.target/bpf/builtin-load.c: Likewise.
	* cc.target/bpf/constant-calls.c: Likewise.
	* gcc.target/bpf/diag-funargs.c: Likewise.
	* gcc.target/bpf/diag-funargs-2.c: Likewise.
	* gcc.target/bpf/diag-funargs-3.c: Likewise.
	* gcc.target/bpf/diag-indcalls.c: Likewise.
	* gcc.target/bpf/helper-bind.c: Likewise.
	* gcc.target/bpf/helper-bpf-redirect.c: Likewise.
	* gcc.target/bpf/helper-clone-redirect.c: Likewise.
	* gcc.target/bpf/helper-csum-diff.c: Likewise.
	* gcc.target/bpf/helper-csum-update.c: Likewise.
	* gcc.target/bpf/helper-current-task-under-cgroup.c: Likewise.
	* gcc.target/bpf/helper-fib-lookup.c: Likewise.
	* gcc.target/bpf/helper-get-cgroup-classid.c: Likewise.
	* gcc.target/bpf/helper-get-current-cgroup-id.c: Likewise.
	* gcc.target/bpf/helper-get-current-comm.c: Likewise.
	* gcc.target/bpf/helper-get-current-pid-tgid.c: Likewise.
	* gcc.target/bpf/helper-get-current-task.c: Likewise.
	* gcc.target/bpf/helper-get-current-uid-gid.c: Likewise.
	* gcc.target/bpf/helper-get-hash-recalc.c: Likewise.
	* gcc.target/bpf/helper-get-listener-sock.c: Likewise.
	* gcc.target/bpf/helper-get-local-storage.c: Likewise.
	* gcc.target/bpf/helper-get-numa-node-id.c: Likewise.
	* gcc.target/bpf/helper-get-prandom-u32.c: Likewise.
	* gcc.target/bpf/helper-get-route-realm.c: Likewise.
	* gcc.target/bpf/helper-get-smp-processor-id.c: Likewise.
	* gcc.target/bpf/helper-get-socket-cookie.c: Likewise.
	* gcc.target/bpf/helper-get-socket-uid.c: Likewise.
	* gcc.target/bpf/helper-getsockopt.c: Likewise.
	* gcc.target/bpf/helper-get-stack.c: Likewise.
	* gcc.target/bpf/helper-get-stackid.c: Likewise.
	* gcc.target/bpf/helper-ktime-get-ns.c: Likewise.
	* gcc.target/bpf/helper-l3-csum-replace.c: Likewise.
	* gcc.target/bpf/helper-l4-csum-replace.c: Likewise.
	* gcc.target/bpf/helper-lwt-push-encap.c: Likewise.
	* gcc.target/bpf/helper-lwt-seg6-action.c: Likewise.
	* gcc.target/bpf/helper-lwt-seg6-adjust-srh.c: Likewise.
	* gcc.target/bpf/helper-lwt-seg6-store-bytes.c: Likewise.
	* gcc.target/bpf/helper-map-delete-elem.c: Likewise.
	* gcc.target/bpf/helper-map-lookup-elem.c: Likewise.
	* gcc.target/bpf/helper-map-peek-elem.c: Likewise.
	* gcc.target/bpf/helper-map-pop-elem.c: Likewise.
	* gcc.target/bpf/helper-map-push-elem.c: Likewise.
	* gcc.target/bpf/helper-map-update-elem.c: Likewise.
	* gcc.target/bpf/helper-msg-apply-bytes.c: Likewise.
	* gcc.target/bpf/helper-msg-cork-bytes.c: Likewise.
	* gcc.target/bpf/helper-msg-pop-data.c: Likewise.
	* gcc.target/bpf/helper-msg-pull-data.c: Likewise.
	* gcc.target/bpf/helper-msg-push-data.c: Likewise.
	* gcc.target/bpf/helper-msg-redirect-hash.c: Likewise.
	* gcc.target/bpf/helper-msg-redirect-map.c: Likewise.
	* gcc.target/bpf/helper-override-return.c: Likewise.
	* gcc.target/bpf/helper-perf-event-output.c: Likewise.
	* gcc.target/bpf/helper-perf-event-read.c: Likewise.
	* gcc.target/bpf/helper-perf-event-read-value.c: Likewise.
	* gcc.target/bpf/helper-perf-prog-read-value.c: Likewise.
	* gcc.target/bpf/helper-probe-read.c: Likewise.
	* gcc.target/bpf/helper-probe-read-str.c: Likewise.
	* gcc.target/bpf/helper-probe-write-user.c: Likewise.
	* gcc.target/bpf/helper-rc-keydown.c: Likewise.
	* gcc.target/bpf/helper-rc-pointer-rel.c: Likewise.
	* gcc.target/bpf/helper-rc-repeat.c: Likewise.
	* gcc.target/bpf/helper-redirect-map.c: Likewise.
	* gcc.target/bpf/helper-set-hash.c: Likewise.
	* gcc.target/bpf/helper-set-hash-invalid.c: Likewise.
	* gcc.target/bpf/helper-setsockopt.c: Likewise.
	* gcc.target/bpf/helper-skb-adjust-room.c: Likewise.
	* gcc.target/bpf/helper-skb-cgroup-id.c: Likewise.
	* gcc.target/bpf/helper-skb-change-head.c: Likewise.
	* gcc.target/bpf/helper-skb-change-proto.c: Likewise.
	* gcc.target/bpf/helper-skb-change-tail.c: Likewise.
	* gcc.target/bpf/helper-skb-change-type.c: Likewise.
	* gcc.target/bpf/helper-skb-ecn-set-ce.c: Likewise.
	* gcc.target/bpf/helper-skb-get-tunnel-key.c: Likewise.
	* gcc.target/bpf/helper-skb-get-tunnel-opt.c: Likewise.
	* gcc.target/bpf/helper-skb-get-xfrm-state.c: Likewise.
	* gcc.target/bpf/helper-skb-load-bytes.c: Likewise.
	* gcc.target/bpf/helper-skb-load-bytes-relative.c: Likewise.
	* gcc.target/bpf/helper-skb-pull-data.c: Likewise.
	* gcc.target/bpf/helper-skb-set-tunnel-key.c: Likewise.
	* gcc.target/bpf/helper-skb-set-tunnel-opt.c: Likewise.
	* gcc.target/bpf/helper-skb-store-bytes.c: Likewise.
	* gcc.target/bpf/helper-skb-under-cgroup.c: Likewise.
	* gcc.target/bpf/helper-skb-vlan-pop.c: Likewise.
	* gcc.target/bpf/helper-skb-vlan-push.c: Likewise.
	* gcc.target/bpf/helper-skc-lookup-tcp.c: Likewise.
	* gcc.target/bpf/helper-sk-fullsock.c: Likewise.
	* gcc.target/bpf/helper-sk-lookup-tcp.c: Likewise.
	* gcc.target/bpf/helper-sk-lookup-upd.c: Likewise.
	* gcc.target/bpf/helper-sk-redirect-hash.c: Likewise.
	* gcc.target/bpf/helper-sk-redirect-map.c: Likewise.
	* gcc.target/bpf/helper-sk-release.c: Likewise.
	* gcc.target/bpf/helper-sk-select-reuseport.c: Likewise.
	* gcc.target/bpf/helper-sk-storage-delete.c: Likewise.
	* gcc.target/bpf/helper-sk-storage-get.c: Likewise.
	* gcc.target/bpf/helper-sock-hash-update.c: Likewise.
	* gcc.target/bpf/helper-sock-map-update.c: Likewise.
	* gcc.target/bpf/helper-sock-ops-cb-flags-set.c: Likewise.
	* gcc.target/bpf/helper-spin-lock.c: Likewise.
	* gcc.target/bpf/helper-spin-unlock.c: Likewise.
	* gcc.target/bpf/helper-strtol.c: Likewise.
	* gcc.target/bpf/helper-strtoul.c: Likewise.
	* gcc.target/bpf/helper-sysctl-get-current-value.c: Likewise.
	* gcc.target/bpf/helper-sysctl-get-name.c: Likewise.
	* gcc.target/bpf/helper-sysctl-get-new-value.c: Likewise.
	* gcc.target/bpf/helper-sysctl-set-new-value.c: Likewise.
	* gcc.target/bpf/helper-tail-call.c: Likewise.
	* gcc.target/bpf/helper-tcp-check-syncookie.c: Likewise.
	* gcc.target/bpf/helper-tcp-sock.c: Likewise.
	* gcc.target/bpf/helper-trace-printk.c: Likewise.
	* gcc.target/bpf/helper-xdp-adjust-head.c: Likewise.
	* gcc.target/bpf/helper-xdp-adjust-meta.c: Likewise.
	* gcc.target/bpf/helper-xdp-adjust-tail.c: Likewise.
	* gcc.target/bpf/skb-ancestor-cgroup-id.c: Likewise.
	* gcc.target/bpf/sync-fetch-and-add.c: Likewise.

libgcc/ChangeLog:

	* config.host: Set cpu_type for bpf-*-* targets.
	* config/bpf/t-bpf: Likewise.
	* config/bpf/crtn.S: Likewise.
	* config/bpf/crti.S: New file.

From-SVN: r275506
2019-09-09 12:13:23 +02:00
Jim Wilson
2f4d895197 RISC-V: Re-enable -msave-restore for shared libraries.
This re-enables -msave-restore for shared libraries, and uses the
t-slibgcc-libgcc file to get the save-restore routines included directly
in shared libraries so that we don't need to indirect through the PLT
to reach them, which doesn't work.

	gcc/
	* config/riscv/riscv.c (riscv_option_override): Revert 2019-08-30
	change.

	libgcc/
	* config.host (riscv*-*-linux*): Add t-slibgcc-libgcc to tmake_file.
	(riscv*-*-freebsd*): Likewise.

From-SVN: r275478
2019-09-06 17:09:21 -07:00
Ulrich Weigand
2f2aeda98f Remove Cell Broadband Engine SPU targets
From-SVN: r275343
2019-09-03 15:08:28 +00:00
Jozef Lawrynowicz
d16017da34 re PR target/91306 ([MSP430] libgcc/crtstuff.c: Alignment of frame_dummy .init_array entry is too big)
2019-08-23  Jozef Lawrynowicz  <jozef.l@mittosystems.com>

	PR target/91306
	* crtstuff.c (__CTOR_LIST__): Align to the "__alignof__" the array
	element type, instead of "sizeof" the element type.
	(__DTOR_LIST__): Likewise.
	(__TMC_LIST__): Likewise.
	(__do_global_dtors_aux_fini_array_entry): Likewise.
	(__frame_dummy_init_array_entry): Likewise.
	(__CTOR_END__): Likewise.
	(__DTOR_END__): Likweise.
	(__FRAME_END__): Likewise.
	(__TMC_END__): Likewise.

From-SVN: r274846
2019-08-23 09:21:26 +00:00
Hongtao Liu
a9fcfec30f Add TIGERLAKE and COOPERLAKE to GCC.
2019-08-20  Lili Cui  <lili.cui@intel.com>

gcc/
	* common/config/i386/i386-common.c
	(processor_names): Add tigerlake and cooperlake.
	(processor_alias_table): Add tigerlake and cooperlake.
	* config.gcc: Add -march=tigerlake and cooperlake.
	* config/i386/driver-i386.c
	(host_detect_local_cpu): Detect tigerlake and cooperlake.
	Add "has_avx" to classify processor.
	* config/i386/i386-builtins.c (processor_model):
	Add M_INTEL_COREI7_TIGERLAKE and M_INTEL_COREI7_COOPERLAKE.
	(arch_names_table): Add tigerlake and cooperlake.
	(get_builtin_code_for_version) : Handle PROCESSOR_TIGERLAKE and
	PROCESSOR_COOPERLAKE.
	* config/i386/i386-c.c
	(ix86_target_macros_internal): Handle tigerlake and cooperlake.
	* config/i386/i386-options.c
	(m_TIGERLAKE)  : Define.
	(m_COOPERLAKE) : Ditto.
	(m_CORE_AVX512): Ditto.
	(processor_cost_table): Add cascadelake.
	(ix86_option_override_internal): Hadle PTA_MOVDIRI, PTA_MOVDIR64B.
	* config/i386/i386.h
	(ix86_size_cost) : Define TARGET_TIGERLAKE and TARGET_COOPERLAKE.
	(processor_type) : Add PROCESSOR_TIGERLAKE and PROCESSOR_COOPERLAKE.
	(PTA_MOVDIRI): Ditto.
	(PTA_MOVDIR64B): Ditto.
	(PTA_COOPERLAKE) : Ditto.
	(PTA_TIGERLAKE)  : Ditto.
	(processor_type) : Add PROCESSOR_TIGERLAKE and PROCESSOR_COOPERLAKE.
	* doc/extend.texi: Add tigerlake and cooperlake.
	* doc/invoke.texi: Add tigerlake and cooperlake.

gcc/testsuite/
	* gcc.target/i386/funcspec-56.inc: Handle new march.
	* g++.target/i386/mv16.C: Handle new march

libgcc/
	* config/i386/cpuinfo.h: Add INTEL_COREI7_TIGERLAKE and
	INTEL_COREI7_COOPERLAKE.

From-SVN: r274693
2019-08-20 07:06:03 +00:00
Matt Thomas
428642b132 config.gcc (hppa*-*-netbsd*): New target.
gcc/ChangeLog:
	* config.gcc (hppa*-*-netbsd*): New target.
	* config/pa/pa-netbsd.h: New file.
	* config/pa/pa32-netbsd.h: New file.

libgcc/ChangeLog:
	* config.host (hppa*-*-netbsd*): New case.
	* config/pa/t-netbsd: New file.


Co-Authored-By: Matthew Green <mrg@eterna.com.au>
Co-Authored-By: Maya Rashish <coypu@sdf.org>
Co-Authored-By: Nick Hudson <nick@nthcliff.demon.co.uk>

From-SVN: r273933
2019-07-31 14:11:16 +00:00
Joel Hutton
f0efd92502 [Arm][CMSE]Add warn_unused_return attribute to cmse functions
At present it is possible to call the CMSE functions for checking
addresses (such as cmse_check_address_range) and  forget to check/use
the return value. This patch makes the interfaces more robust against
programmer error by marking these functions with the warn_unused_result
attribute. With this set, any use of these functions that does not use
the result will produce a warning.

This produces a warning on default warn levels when the result of the
cmse functions is not used.

For the following function:
void foo()
{
     int *data;
     cmse_check_address_range((int*)data, 0, 0);
}
The following warning is emitted:
warning: ignoring return value of 'cmse_check_address_range' declared
with attribute 'warn_unused_result' [-Wunused-result]
     6 |  cmse_check_address_range((int*)data, 0, 0);
        |  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

gcc/ChangeLog:

2019-07-31  Joel Hutton  <Joel.Hutton@arm.com>

         * config/arm/arm_cmse.h (cmse_nonsecure_caller): Add
warn_unused_result attribute.
         (cmse_check_address_range): Add warn_unused_result attribute.

libgcc/ChangeLog:

2019-07-31  Joel Hutton  <Joel.Hutton@arm.com>

         * config/arm/cmse.c (cmse_check_address_range): Add
warn_unused_result attribute.

2019-07-31  Joel Hutton  <Joel.Hutton@arm.com>

         * gcc.target/arm/cmse/cmse-17.c: New test.

From-SVN: r273924
2019-07-31 08:56:35 +00:00
Martin Liska
a861990d21 Do not emit __gnu_lto_v1 symbol.
2019-07-22  Martin Liska  <mliska@suse.cz>

	* config/avr/avr.c (avr_asm_output_aligned_decl_common): Update
	comment.
	* toplev.c (compile_file): Do not emit __gnu_lto_v1 symbol.
2019-07-22  Martin Liska  <mliska@suse.cz>

	* config/pa/stublib.c: Remove stub symbol __gnu_lto_v1.
	* config/pa/t-stublib: Likewise.
2019-07-22  Martin Liska  <mliska@suse.cz>

	* simple-object-elf.c (simple_object_elf_copy_lto_debug_sections):
	Do not search for gnu_lto_v1, but search for first '\0'.

From-SVN: r273662
2019-07-22 07:34:47 +00:00
Stafford Horne
9c0dba7c45 or1k: Fix issues with msoft-div
Fixes bad assembly logic with software divide as reported by Richard Selvaggi.
Also, add a basic test to verify the soft math works when enabled.

gcc/testsuite/ChangeLog:

	PR target/90362
	* gcc.target/or1k/div-mul-3.c: New test.

libgcc/ChangeLog:

	PR target/90362
	* config/or1k/lib1funcs.S (__udivsi3): Change l.sfeqi
	to l.sfeq and l.sfltsi to l.sflts equivalents as the immediate
	instructions are not available on every processor.  Change a
	l.bnf to l.bf to fix logic issue.

From-SVN: r273648
2019-07-21 20:59:50 +00:00
Martin Sebor
aac9480da1 PR middle-end/71924 - missing -Wreturn-local-addr returning alloca result
PR middle-end/71924 - missing -Wreturn-local-addr returning alloca result
PR middle-end/90549 - missing -Wreturn-local-addr maybe returning an address of a local array plus offset

gcc/ChangeLog:

	PR middle-end/71924
	PR middle-end/90549
	* gimple-ssa-isolate-paths.c (isolate_path): Add attribute.  Update
	comment.
	(args_loc_t): New type.
	(args_loc_t, locmap_t): same.
	(diag_returned_locals): New function.
	(is_addr_local): Same.
	(handle_return_addr_local_phi_arg, warn_return_addr_local): Same.
	(find_implicit_erroneous_behavior): Call warn_return_addr_local_phi_arg.
	(find_explicit_erroneous_behavior): Call warn_return_addr_local.

gcc/testsuite/ChangeLog:

	PR middle-end/71924
	PR middle-end/90549
	* gcc.c-torture/execute/return-addr.c: New test.
	* gcc.dg/Wreturn-local-addr-2.c: New test.
	* gcc.dg/Wreturn-local-addr-4.c: New test.
	* gcc.dg/Wreturn-local-addr-5.c: New test.
	* gcc.dg/Wreturn-local-addr-6.c: New test.
	* gcc.dg/Wreturn-local-addr-7.c: New test.
	* gcc.dg/Wreturn-local-addr-8.c: New test.
	* gcc.dg/Wreturn-local-addr-9.c: New test.
	* gcc.dg/Wreturn-local-addr-10.c: New test.
	* gcc.dg/Walloca-4.c: Handle expected warnings.
	* gcc.dg/pr41551.c: Same.
	* gcc.dg/pr59523.c: Same.
	* gcc.dg/tree-ssa/pr88775-2.c: Same.
	* gcc.dg/tree-ssa/alias-37.c: Same.
	* gcc.dg/winline-7.c: Same.

From-SVN: r273261
2019-07-08 22:15:42 -06:00
Iain Sandoe
61afc8f8f0 [Darwin] Revert one hunk from r273016 (TLC for older Darwin versions).
t-darwin8 is nolonger needed (or present) for pre-10.4 powerpc, so remove
the reference.

2019-07-04  Iain Sandoe  <iain@sandoe.co.uk>

	* config.host: Remove reference to t-darwin8.

From-SVN: r273091
2019-07-04 18:28:59 +00:00
Iain Sandoe
179c7ef523 [Darwin] Some TLC for older Darwin versions.
The library handling and some of the options for creating the crts for
the older PPC Darwin versions had bit-rotted somewhat.  This adjusts the
build criteria for the crts to avoid newer ld64 versions warnings about
mismatches in build and object versions.

Added to some of the comments that it's documented why the specs are as
they are.

2019-07-03  Iain Sandoe  <iain@sandoe.co.uk>

gcc/

	* config/darwin.h (REAL_LIBGCC_SPEC): Adjust for earlier Darwin.
	(STARTFILE_SPEC): Split crt3 into a separate spec.
	(DARWIN_EXTRA_SPECS): Add crt2 and crt3 spec.
	(DARWIN_CRT2_SPEC): New.
	(DARWIN_CRT3_SPEC): New.
	(MIN_LD64_OMIT_STUBS): Revise to 62.1.
	* config/rs6000/darwin.h (DARWIN_CRT2_SPEC): Revise conditions.
	(DARWIN_CRT3_SPEC): New.

libgcc/

2019-07-03  Iain Sandoe  <iain@sandoe.co.uk>

	* config.host (powerpc-*-darwin*,powerpc64-*-darwin*): Revise crt
	list.
	* config/rs6000/t-darwin: Build crt3_2 for older systems.  Revise
	mmacosx-version-min for crts to run across all system versions.
	* config/rs6000/t-darwin64 (LIB2ADD): Remove.
	* config/t-darwin: Revise mmacosx-version-min for crts to run across
	system versions >= 10.4.

From-SVN: r273016
2019-07-03 18:36:28 +00:00
Martin Liska
596341c741 Rename SINGE_VALUE to TOPN_VALUES counters.
2019-07-03  Martin Liska  <mliska@suse.cz>

	* gcov-counter.def (GCOV_COUNTER_V_SINGLE): Remove.
	(GCOV_COUNTER_V_TOPN): New.
	(GCOV_COUNTER_V_INDIR): Use _topn.
	* gcov-io.h (GCOV_DISK_SINGLE_VALUES): Remove.
	(GCOV_TOPN_VALUES): New.
	(GCOV_SINGLE_VALUE_COUNTERS): Remove.
	(GCOV_TOPN_VALUES_COUNTERS): New.
	* profile.c (instrument_values): Use HIST_TYPE_TOPN_VALUES.
	* tree-profile.c:
	(gimple_init_gcov_profiler): Rename variables from one_value
	to topn_values.
	(gimple_gen_one_value_profiler): Remove.
	(gimple_gen_topn_values_profiler): New function.
	* value-prof.c (dump_histogram_value): Use TOPN_VALUES
	names instead of SINGLE_VALUE.
	(stream_out_histogram_value): Likewise.
	(stream_in_histogram_value): Likewise.
	(get_most_common_single_value): Likewise.
	(gimple_divmod_fixed_value_transform): Likewise.
	(gimple_stringops_transform): Likewise.
	(gimple_divmod_values_to_profile): Likewise.
	(gimple_stringops_values_to_profile): Likewise.
	(gimple_find_values_to_profile): Likewise.
	* value-prof.h (enum hist_type): Rename to TOPN.
	(gimple_gen_one_value_profiler): Remove.
	(gimple_gen_topn_values_profiler): New.
2019-07-03  Martin Liska  <mliska@suse.cz>

	* Makefile.in: Use topn_values instead of one_value names.
	* libgcov-merge.c (__gcov_merge_single): Move to ...
	(__gcov_merge_topn): ... this.
	(merge_single_value_set): Move to ...
	(merge_topn_values_set): ... this.
	* libgcov-profiler.c (__gcov_one_value_profiler_body): Move to
	...
	(__gcov_topn_values_profiler_body): ... this.
	(__gcov_one_value_profiler_v2): Move to ...
	(__gcov_topn_values_profiler): ... this.
	(__gcov_one_value_profiler_v2_atomic): Move to ...
	(__gcov_topn_values_profiler_atomic): ... this.
	(__gcov_indirect_call_profiler_v4): Remove.
	* libgcov-util.c (__gcov_single_counter_op): Move to ...
	(__gcov_topn_counter_op): ... this.
	* libgcov.h (L_gcov_merge_single): Remove.
	(L_gcov_merge_topn): New.
	(__gcov_merge_single): Remove.
	(__gcov_merge_topn): New.
	(__gcov_one_value_profiler_v2): Move to ..
	(__gcov_topn_values_profiler): ... this.
	(__gcov_one_value_profiler_v2_atomic): Move to ...
	(__gcov_topn_values_profiler_atomic): ... this.

From-SVN: r273005
2019-07-03 12:42:23 +00:00
Martin Liska
1b309ca5ed Support N values in libgcov for single value counter type.
2019-07-03  Martin Liska  <mliska@suse.cz>

	* gcc.dg/tree-prof/val-prof-2.c: Update scanned pattern
	as we do now better.
2019-07-03  Martin Liska  <mliska@suse.cz>

	* libgcov-merge.c (merge_single_value_set): Support N values.
	* libgcov-profiler.c (__gcov_one_value_profiler_body): Likewise.

From-SVN: r273004
2019-07-03 12:42:02 +00:00
Ilia Diachkov
5a4602805e Add --disable-tm-clone-registry libgcc configure option.
This patch adds libgcc configuration option to disable TM clone 
registry. This option helps to reduce code size for embedded targets 
which do not need transactional memory support.

	gcc/
	* doc/install.texi: Document --disable-tm-clone-registry.
	libgcc/
	* Makefile.in (USE_TM_CLONE_REGISTRY): New.
	(CRTSTUFF_CFLAGS): Use USE_TM_CLONE_REGISTRY.
	* configure.ac: Add --disable-tm-clone-registry option.
	* configure: Regenerate.

From-SVN: r272769
2019-06-27 16:41:03 -07:00
Martin Liska
45309d286c Remove quite obvious dead assignments.
2019-06-27  Martin Liska  <mliska@suse.cz>

	* asan.c (asan_emit_allocas_unpoison): Remove obviously
	dead assignments.
	* bt-load.c (move_btr_def): Likewise.
	* builtins.c (expand_builtin_apply_args_1): Likewise.
	(expand_builtin_apply): Likewise.
	* cfgexpand.c (expand_asm_stmt): Likewise.
	(construct_init_block): Likewise.
	* cfghooks.c (verify_flow_info): Likewise.
	* cfgloopmanip.c (remove_path): Likewise.
	* cfgrtl.c (rtl_verify_bb_layout): Likewise.
	* cgraph.c (cgraph_node::set_pure_flag): Likewise.
	* combine.c (simplify_if_then_else): Likewise.
	* config/i386/i386.c (ix86_setup_incoming_vararg_bounds): Likewise.
	(choose_basereg): Likewise.
	(ix86_expand_prologue): Likewise.
	(ix86_preferred_output_reload_class): Likewise.
	* cselib.c (cselib_record_sets): Likewise.
	* df-scan.c (df_scan_alloc): Likewise.
	* dojump.c (do_jump_by_parts_greater_rtx): Likewise.
	* early-remat.c (early_remat::record_equiv_candidates): Likewise.
	* emit-rtl.c (try_split): Likewise.
	* graphite-scop-detection.c (assign_parameter_index_in_region): Likewise.
	* ipa-cp.c (cgraph_edge_brings_all_agg_vals_for_node): Likewise.
	* ira-color.c (setup_profitable_hard_regs): Likewise.
	* ira.c (rtx_moveable_p): Likewise.
	* lra-eliminations.c (eliminate_regs_in_insn): Likewise.
	* read-rtl.c (read_subst_mapping): Likewise.
	* regrename.c (scan_rtx): Likewise.
	* reorg.c (fill_slots_from_thread): Likewise.
	* tree-inline.c (tree_function_versioning): Likewise.
	* tree-ssa-reassoc.c (optimize_ops_list): Likewise.
	* tree-ssa-sink.c (statement_sink_location): Likewise.
	* tree-ssa-threadedge.c (thread_across_edge): Likewise.
	* tree-vect-loop.c (vect_get_loop_niters): Likewise.
	(vect_create_epilog_for_reduction): Likewise.
	* tree.c (build_nonstandard_integer_type): Likewise.
2019-06-27  Martin Liska  <mliska@suse.cz>

	* class.c (adjust_clone_args): Remove obviously
	dead assignments.
	(dump_class_hierarchy_r): Likewise.
	* decl.c (check_initializer): Likewise.
	* parser.c (cp_parser_lambda_expression): Likewise.
	* pt.c (unify_bound_ttp_args): Likewise.
	(convert_template_argument): Likewise.
	* rtti.c (build_headof): Likewise.
	* typeck.c (convert_for_initialization): Likewise.
2019-06-27  Martin Liska  <mliska@suse.cz>

	* libgcov-driver-system.c (gcov_exit_open_gcda_file): Remove obviously
	dead assignments.
	* libgcov-util.c: Likewise.

From-SVN: r272744
2019-06-27 10:25:21 +00:00
Martin Liska
c2f7a665a1 Fix misc stuff seen by clang-static-analyzer.
2019-06-27  Martin Liska  <mliska@suse.cz>

	* lto-dump.c (struct symbol_entry): Add default dtor.
	(struct variable_entry): Likewise.
	(struct function_entry): Likewise.
	(dump_list_functions): Release memory.
	(dump_list_variables): Likewise.
2019-06-27  Martin Liska  <mliska@suse.cz>

	* libgcov-util.c (gcov_profile_merge): Release allocated
	memory.
	(calculate_overlap): Likewise.

From-SVN: r272733
2019-06-27 08:21:32 +00:00
Iain Sandoe
ebecdd0c36 Darwin, add a missed file change
From the last commit.

2019-06-25  Iain Sandoe  <iain@sandoe.co.uk>

	* config.host: Add libef_ppc.a to the extra files for powerpc-darwin.

From-SVN: r272660
2019-06-25 20:12:49 +00:00
Iain Sandoe
a8e55c61f8 [Darwin, PPC] Move the out of line register save/restore to an endfile.
We have been including this in libgcc, which means that we have to append
-lgcc even when using shared libgcc. In preparation for revision of libgcc
split this into an endfile.

gcc/
2019-06-25  Iain Sandoe  <iain@sandoe.co.uk>

	* config/rs6000/darwin.h (ENDFILE_SPEC): New.

libgcc/
2019-06-25  Iain Sandoe  <iain@sandoe.co.uk>

	* config.host: Add libef_ppc.a to the extra files for powerpc-darwin.
	* config/rs6000/t-darwin: (PPC_ENDFILE_SRC, PPC_ENDFILE_OBJS): New.
	Build objects for the out of line save/restore register functions
	so that they can be used for any supported Darwin version.
	* config/t-darwin: Default the build Darwin version to Darwin8
	(MacOS 10.4).

From-SVN: r272659
2019-06-25 20:11:11 +00:00
Martin Liska
e5ce4cbc72 Do not call strlen with NULL argument in libgcov.
2019-06-25  Martin Liska  <mliska@suse.cz>

	* libgcov-driver-system.c (replace_filename_variables): Do not
	call strlen with NULL argument.

From-SVN: r272650
2019-06-25 11:49:36 +00:00
Andrew Stubbs
52a47d2856 Stub implementation of unwinding for AMD GCN.
2019-06-25  Andrew Stubbs  <ams@codesourcery.com>

	libgcc/
	* config/gcn/t-amdgcn (LIB2ADD): Add unwind-gcn.c.
	* config/gcn/unwind-gcn.c: New file.

From-SVN: r272648
2019-06-25 11:41:33 +00:00
Kwok Cheung Yeung
76d4633107 Create GCN-specific gthreads
2019-06-25  Kwok Cheung Yeung  <kcy@codesourcery.com>
            Andrew Stubbs  <ams@codesourcery.com>

        gcc/
	* config.gcc (thread_file): Set to gcn for AMD GCN.
	* config/gcn/gcn.c (gcn_emutls_var_init): New function.
	(TARGET_EMUTLS_VAR_INIT): New hook.

	config/
	* gthr.m4 (GCC_AC_THREAD_HEADER): Add case for gcn.

	libgcc/
	* configure: Regenerate.
	* config/gcn/gthr-gcn.h: New.

Co-Authored-By: Andrew Stubbs <ams@codesourcery.com>

From-SVN: r272647
2019-06-25 11:41:29 +00:00
Tom de Vries
787783a035 [nvptx] Fix __main missing prototype warning in crt0.c
Atm we see:
...
libgcc/config/nvptx/crt0.c:36:1: warning: no previous prototype for \
  ‘__main’ [-Wmissing-prototypes]
...

Fix this by adding the prototype.

Build and reg-tested on nvptx.
Build and reg-tested on x86_64 with nvptx accelerator.

2019-06-18  Tom de Vries  <tdevries@suse.de>

	* config/nvptx/crt0.c (__main): Declare.

From-SVN: r272412
2019-06-18 09:19:28 +00:00
Matthew Green
f32f75858a [netbsd][aarch64] add netbsd/aarch64 target
Initial support for AArch64 running NetBSD.

Matthew Green <mrg@eterna.com.au>
Maya Rashish <coypu@sdf.org>

gcc:
	* config.gcc (aarch64*-*-netbsd*): New target.
	* config/aarch64/aarch64-netbsd.h: New file.
	* config/aarch64/t-aarch64-netbsd: Likewise.

libgcc:
	* config.host (aarch64*-*-netbsd*): New case.

Co-Authored-By: Maya Rashish <coypu@sdf.org>

From-SVN: r272387
2019-06-17 14:43:11 +00:00
Jozef Lawrynowicz
0fcc78f79e MSP430: Implement 64-bit shifts in assembly code
gcc/ChangeLog:

2019-06-16  Jozef Lawrynowicz  <jozef.l@mittosystems.com>

	* config/msp430/msp430.c (msp430_expand_helper): Setup arguments which
	describe how to perform MSPABI compliant 64-bit shift.
	* config/msp430/msp430.md (ashldi3): New define_expand.
	(ashrdi3): New define_expand.
	(lshrdi3): New define_expand.

libgcc/ChangeLog:

2019-06-16  Jozef Lawrynowicz  <jozef.l@mittosystems.com>

	* config/msp430/slli.S (__mspabi_sllll): New library function for
	performing a logical left shift of a 64-bit value.
	* config/msp430/srai.S (__mspabi_srall): New library function for
	performing a arithmetic right shift of a 64-bit value.
	* config/msp430/srll.S (__mspabi_srlll): New library function for
	performing a logical right shift of a 64-bit value.

gcc/testsuite/ChangeLog:

2019-06-16  Jozef Lawrynowicz  <jozef.l@mittosystems.com>

	* gcc.target/msp430/mspabi_sllll.c: New test.
	* gcc.target/msp430/mspabi_srall.c: New test.
	* gcc.target/msp430/mspabi_srlll.c: New test.
	* gcc.c-torture/execute/shiftdi-2.c: New test.

From-SVN: r272360
2019-06-16 21:24:56 +00:00
Matt Thomas
b27c108234 [NetBSD] Add support for the Arm EABI.
This is a roll-up of a set of changes needed to support the Arm EABI on NetBSD.

2019-06-14  Matt Thomas  <matt@3am-software.com>
	    Matthew Green  <mrg@eterna.com.au>
	    Nick Hudson  <skrll@netbsd.org>
	    Maya Rashish  <coypu@sdf.org>
	    Richard Earnshaw  <rearnsha@arm.com>

gcc:

	* config.gcc (arm*-*-netbsdelf*) Add support for EABI configuration.
	* config.host (arm*-*-netbsd*): Use driver-arm.o on native NetBSD.
	* config/arm/netbsd-eabi.h: New file.
	* config/arm/netbsd-elf.h (TARGET_OS_CPP_BUILTINS): Undefine before
	redefining.
	(SUBTARGET_EXTRA_ASM_SPEC): Don't pass -matpcs to the assembler.
	* config/netbsd-elf.h (NETBSD_LINK_LD_ELF_SO_SPEC): New define.
	(NETBSD_SUBTARGET_EXTRA_SPECS): New define.
	(SUBTARGET_EXTRA_SPECS): Define to NETBSD_SUBTARGET_EXTRA_SPECS.

libatomic:
	* configure.tgt (arm*): Handle NetBSD in the same way as FreeBSD.

libgcc:
	* config.host (arm*-*-netbsdelf*): Add support for EABI configurations.
	* config/arm/t-netbsd (LIB1ASMFUNCS): Add some additional assembler
	functions to build.
	* config/arm/t-netbsd-eabi: New file.


Co-Authored-By: Matthew Green <mrg@eterna.com.au>
Co-Authored-By: Maya Rashish <coypu@sdf.org>
Co-Authored-By: Nick Hudson <skrll@netbsd.org>
Co-Authored-By: Richard Earnshaw <rearnsha@arm.com>

From-SVN: r272290
2019-06-14 14:04:20 +00:00
Dimitar Dimitrov
ae7deb4b85 Initial TI PRU libgcc port
libgcc/ChangeLog:

2019-06-12  Dimitar Dimitrov  <dimitar@dinux.eu>

	* config.host: Add PRU target.
	* config/pru/asri.c: New file.
	* config/pru/eqd.c: New file.
	* config/pru/eqf.c: New file.
	* config/pru/ged.c: New file.
	* config/pru/gef.c: New file.
	* config/pru/gtd.c: New file.
	* config/pru/gtf.c: New file.
	* config/pru/led.c: New file.
	* config/pru/lef.c: New file.
	* config/pru/lib2bitcountHI.c: New file.
	* config/pru/lib2divHI.c: New file.
	* config/pru/lib2divQI.c: New file.
	* config/pru/lib2divSI.c: New file.
	* config/pru/libgcc-eabi.ver: New file.
	* config/pru/ltd.c: New file.
	* config/pru/ltf.c: New file.
	* config/pru/mpyll.S: New file.
	* config/pru/pru-abi.h: New file.
	* config/pru/pru-asm.h: New file.
	* config/pru/pru-divmod.h: New file.
	* config/pru/sfp-machine.h: New file.
	* config/pru/t-pru: New file.

From-SVN: r272204
2019-06-12 19:28:51 +00:00
Jakub Jelinek
0d7b3e477b * libgcov-merge.c (__gcov_merge_single): Revert previous change.
From-SVN: r272143
2019-06-11 09:54:17 +02:00
Martin Liska
54e2d83caf Add missing ATTR_UNUSED (PR bootstrap/90808).
2019-06-10  Martin Liska  <mliska@suse.cz>

	PR bootstrap/90808
	* libgcov.h: Add ATTRIBUTE_UNUSED.

From-SVN: r272114
2019-06-10 09:53:46 +00:00
Martin Liska
92d417175b Implement N disk counters for single value and indirect call counters.
2019-06-10  Martin Liska  <mliska@suse.cz>

	* gcov-io.h (GCOV_DISK_SINGLE_VALUES): New.
	(GCOV_SINGLE_VALUE_COUNTERS): Likewise.
	* ipa-profile.c (ipa_profile_generate_summary):
	Use get_most_common_single_value.
	* tree-profile.c (gimple_init_gcov_profiler):
	Instrument with __gcov_one_value_profiler_v2
	and __gcov_indirect_call_profiler_v4.
	* value-prof.c (dump_histogram_value):
	Print all values for HIST_TYPE_SINGLE_VALUE.
	(stream_out_histogram_value): Update assert for
	N values.
	(stream_in_histogram_value): Set number of
	counters for HIST_TYPE_SINGLE_VALUE.
	(get_most_common_single_value): New.
	(gimple_divmod_fixed_value_transform):
	Use get_most_common_single_value.
	(gimple_ic_transform): Likewise.
	(gimple_stringops_transform): Likewise.
	(gimple_find_values_to_profile): Set number
	of counters for HIST_TYPE_SINGLE_VALUE.
	* value-prof.h (get_most_common_single_value):
	New.
2019-06-10  Martin Liska  <mliska@suse.cz>

	* Makefile.in: Add __gcov_one_value_profiler_v2,
	__gcov_one_value_profiler_v2_atomic and
	__gcov_indirect_call_profiler_v4.
	* libgcov-merge.c (__gcov_merge_single): Change
	function signature.
	(merge_single_value_set): New.
	* libgcov-profiler.c (__gcov_one_value_profiler_body):
	Update functionality.
	(__gcov_one_value_profiler): Remove.
	(__gcov_one_value_profiler_v2): ... this.
	(__gcov_one_value_profiler_atomic): Rename to ...
	(__gcov_one_value_profiler_v2_atomic): this.
	(__gcov_indirect_call_profiler_v3): Rename to ...
	(__gcov_indirect_call_profiler_v4): ... this.
	* libgcov.h (__gcov_one_value_profiler): Remove.
	(__gcov_one_value_profiler_atomic): Remove.
	(__gcov_one_value_profiler_v2_atomic): New.
	(__gcov_indirect_call_profiler_v3): Remove.
	(__gcov_one_value_profiler_v2): New.
	(__gcov_indirect_call_profiler_v4): New.
	(gcov_get_counter_ignore_scaling): New function.

From-SVN: r272106
2019-06-10 07:38:59 +00:00
Martin Liska
e37333bad7 Remove indirect call top N counter type.
2019-06-07  Martin Liska  <mliska@suse.cz>

	* doc/invoke.texi: Remove param.
	* gcov-counter.def (GCOV_COUNTER_ICALL_TOPNV):
	Remove.
	* gcov-io.h (GCOV_ICALL_TOPN_VAL): Likewise.
	(GCOV_ICALL_TOPN_NCOUNTS): Likewise.
	* params.def (PARAM_INDIR_CALL_TOPN_PROFILE): Likewise.
	* profile.c (instrument_values): Remove
	HIST_TYPE_INDIR_CALL_TOPN.
	* tree-profile.c (init_ic_make_global_vars):
	Always build __gcov_indirect_call only.
	(gimple_init_gcov_profiler): Remove usage
	of PARAM_INDIR_CALL_TOPN_PROFILE.
	(gimple_gen_ic_profiler): Likewise.
	* value-prof.c (dump_histogram_value): Likewise.
	(stream_in_histogram_value): Likewise.
	(gimple_indirect_call_to_profile): Likewise.
	(gimple_find_values_to_profile): Likewise.
	* value-prof.h (enum hist_type): Likewise.
2019-06-07  Martin Liska  <mliska@suse.cz>

	* Makefile.in: Remove usage of
	_gcov_merge_icall_topn.
	* libgcov-driver.c (gcov_sort_n_vals): Remove.
	(gcov_sort_icall_topn_counter): Likewise.
	(gcov_sort_topn_counter_arrays): Likewise.
	(dump_one_gcov): Remove call to gcov_sort_topn_counter_arrays.
	* libgcov-merge.c (__gcov_merge_icall_topn): Remove.
	* libgcov-profiler.c (__gcov_topn_value_profiler_body):
	Likewise.
	(GCOV_ICALL_COUNTER_CLEAR_THRESHOLD): Remove.
	(struct indirect_call_tuple): Remove.
	(__gcov_indirect_call_topn_profiler): Remove.
	* libgcov-util.c (__gcov_icall_topn_counter_op): Remove.
	* libgcov.h (gcov_sort_n_vals): Remove.
	(L_gcov_merge_icall_topn): Likewise.
	(__gcov_merge_icall_topn): Likewise.
	(__gcov_indirect_call_topn_profiler): Likewise.

From-SVN: r272030
2019-06-07 06:41:58 +00:00
Iain Sandoe
34a4a9c2b5 Darwin, PowerPC, libgcc - Ensure unwinder is built with altivec enabled.
When libgcc is built on Darwin, it is usually built for the earliest potential
target (Darwin8, 10.4).  Build for that revision default to assuming that the
processor might be G3 (without vector ops) and there is an outlined function
used for save/restore that checks whether the processor is G3 or G4+ at run-
time.  However, the unwinder itself needs to be built with the assumption of
vector usage so that the relevant outlined functions are called.

2019-06-06  Iain Sandoe  <iain@sandoe.co.uk>

	* config/rs6000/t-darwin: Ensure that the unwinder is built with
	altivec enabled.

From-SVN: r272017
2019-06-06 19:02:54 +00:00
Jozef Lawrynowicz
d1b2f85f78 MSP430: Put libgcc shift functions in their own section
2019-06-06  Jozef Lawrynowicz  <jozef.l@mittosystems.com>

	* config/msp430/slli.S (__mspabi_slli_n): Put function in its own
	section.
	(__mspabi_slli): Likewise.
	(__mspabi_slll_n): Likewise.
	(__mspabi_slll): Likewise.
	* config/msp430/srai.S (__mspabi_srai_n): Likewise.
	(__mspabi_srai): Likewise.
	(__mspabi_sral_n): Likewise.
	(__mspabi_sral): Likewise.
	* config/msp430/srli.S (__mspabi_srli_n): Likewise.
	(__mspabi_srli): Likewise.
	(__mspabi_srll_n): Likewise.
	(__mspabi_srll): Likewise.

From-SVN: r271992
2019-06-06 09:07:36 +00:00
Yoshinori Sato
e69a13d15d config.host (rx-*-linux*): Add t-fdpbit to tmake_file Add appropriate tm_file clause as well.
* config.host (rx-*-linux*): Add t-fdpbit to tmake_file
        Add appropriate tm_file clause as well.
        * config/rx/t-rx (HOST_LIBGCC2_CFLAGS): Remove.

From-SVN: r271978
2019-06-05 17:20:27 -06:00
James Clarke
b009eac157 crtbegin.S (__dso_handle): Put in .sdata/.sbss rather than .data/.bss so it can be accessed via...
* config/ia64/crtbegin.S (__dso_handle): Put in .sdata/.sbss
	rather than .data/.bss so it can be accessed via gp-relative
	addressing.

From-SVN: r271977
2019-06-05 16:27:37 -06:00
David Edelsohn
781d39f26e aix-unwind.h (LR_REGNO): Rename to R_LR.
* config/rs6000/aix-unwind.h (LR_REGNO): Rename to R_LR.
(CR2_REGNO): Rename to R_CR2.
(XER_REGNO): Rename to R_XER.
(FIRST_ALTIVEC_REGNO): Rename to R_FIRST_ALTIVEC.
(VRSAVE_REGNO): Rename to R_VRSAVE.
(VSCR_REGNO): R_VSCR.

From-SVN: r271967
2019-06-05 12:45:57 -04:00
Yoshinori Sato
76aaa9cdb1 config.gcc (rx-*-linux*): New target.
* config.gcc (rx-*-linux*): New target.
	* config/rx/elf.opt: New file.
	* config/rx/linux.h: Likewise.
	* config/rx/t-linux: Likewise.
	* config/rx/rx.c (TARGET_SAVE_ACC_REGISTER): If not defined,
	make it zero.
	* config/rx/rx.h (ASM_APP_ON): Allow to be overridden.
	(ASM_APP_OFF): Likewise.
	* config/rx/rx.opt: Drop -msim and -mas100-syntax, they were
	moved elsewhere.

	* config.host (rx-*-linux*): Add new case.
	* config/rx/t-rx (HOST_LIBGCC2_CFLAGS): Force DFmode to SFmode.

From-SVN: r271748
2019-05-29 12:36:06 -06:00
Sam Tebbs
8fc16d7252 [PATCH 3/3][GCC][AARCH64] Add support for pointer authentication B key
gcc/
2019-05-29  Sam Tebbs  <sam.tebbs@arm.com>

	* config/aarch64/aarch64-builtins.c (aarch64_builtins): Add
	AARCH64_PAUTH_BUILTIN_AUTIB1716 and AARCH64_PAUTH_BUILTIN_PACIB1716.
	* config/aarch64/aarch64-builtins.c (aarch64_init_pauth_hint_builtins):
	Add autib1716 and pacib1716 initialisation.
	* config/aarch64/aarch64-builtins.c (aarch64_expand_builtin): Add checks
	for autib1716 and pacib1716.
	* config/aarch64/aarch64-protos.h (aarch64_key_type,
	aarch64_post_cfi_startproc): Define.
	* config/aarch64/aarch64-protos.h (aarch64_ra_sign_key): Define extern.
	* config/aarch64/aarch64.c (aarch64_handle_standard_branch_protection,
	aarch64_handle_pac_ret_protection): Set default sign key to A.
	* config/aarch64/aarch64.c (aarch64_expand_epilogue,
	aarch64_expand_prologue): Add check for b-key.
	* config/aarch64/aarch64.c (aarch64_ra_sign_key,
	aarch64_post_cfi_startproc, aarch64_handle_pac_ret_b_key): Define.
	* config/aarch64/aarch64.h (TARGET_ASM_POST_CFI_STARTPROC): Define.
	* config/aarch64/aarch64.c (aarch64_pac_ret_subtypes): Add "b-key".
	* config/aarch64/aarch64.md (unspec): Add UNSPEC_AUTIA1716,
	UNSPEC_AUTIB1716, UNSPEC_AUTIASP, UNSPEC_AUTIBSP, UNSPEC_PACIA1716,
	UNSPEC_PACIB1716, UNSPEC_PACIASP, UNSPEC_PACIBSP.
	* config/aarch64/aarch64.md (do_return): Add check for b-key.
	* config/aarch64/aarch64.md (<pauth_mnem_prefix>sp): Replace
	pauth_hint_num_a with pauth_hint_num.
	* config/aarch64/aarch64.md (<pauth_mnem_prefix>1716): Replace
	pauth_hint_num_a with pauth_hint_num.
	* config/aarch64/aarch64.opt (msign-return-address=): Deprecate.
	* config/aarch64/iterators.md (PAUTH_LR_SP): Add UNSPEC_AUTIASP,
	UNSPEC_AUTIBSP, UNSPEC_PACIASP, UNSPEC_PACIBSP.
	* config/aarch64/iterators.md (PAUTH_17_16): Add UNSPEC_AUTIA1716,
	UNSPEC_AUTIB1716, UNSPEC_PACIA1716, UNSPEC_PACIB1716.
	* config/aarch64/iterators.md (pauth_mnem_prefix): Add UNSPEC_AUTIA1716,
	UNSPEC_AUTIB1716, UNSPEC_PACIA1716, UNSPEC_PACIB1716, UNSPEC_AUTIASP,
	UNSPEC_AUTIBSP, UNSPEC_PACIASP, UNSPEC_PACIBSP.
	* config/aarch64/iterators.md (pauth_hint_num_a): Replace
	UNSPEC_PACI1716 and UNSPEC_AUTI1716 with UNSPEC_PACIA1716 and
	UNSPEC_AUTIA1716 respectively.
	* config/aarch64/iterators.md (pauth_hint_num_a): Rename to pauth_hint_num
	and add UNSPEC_PACIBSP, UNSPEC_AUTIBSP, UNSPEC_PACIB1716, UNSPEC_AUTIB1716.
	* doc/invoke.texi (-mbranch-protection): Add b-key type.
	* config/aarch64/aarch64-bti-insert.c (aarch64_pac_insn_p): Rename
	UNSPEC_PACISP to UNSPEC_PACIASP and UNSPEC_PACIBSP.

gcc/testsuite
2019-05-29  Sam Tebbs  <sam.tebbs@arm.com>

	* gcc.target/aarch64/return_address_sign_b_1.c: New file.
	* gcc.target/aarch64/return_address_sign_b_2.c: New file.
	* gcc.target/aarch64/return_address_sign_b_3.c: New file.
	* gcc.target/aarch64/return_address_sign_b_exception.c: New file.
	* gcc.target/aarch64/return_address_sign_ab_exception.c: New file.
	* gcc.target/aarch64/return_address_sign_builtin.c: New file

libgcc/
2019-05-29  Sam Tebbs  <sam.tebbs@arm.com>

	* config/aarch64/aarch64-unwind.h (aarch64_cie_signed_with_b_key): New
	function.
	* config/aarch64/aarch64-unwind.h (aarch64_post_extract_frame_addr,
	aarch64_post_frob_eh_handler_addr): Add	check for b-key.
	* config/aarch64/aarch64-unwind-h (aarch64_post_extract_frame_addr,
	aarch64_post_frob_eh_handler_addr, aarch64_post_frob_update_context):
	Rename RA_A_SIGNED_BIT to RA_SIGNED_BIT.
	* unwind-dw2-fde.c (get_cie_encoding): Add check for 'B' in augmentation
	string.
	* unwind-dw2.c (extract_cie_info): Add check for 'B' in augmentation
	string.
	(RA_A_SIGNED_BIT): Rename to RA_SIGNED_BIT.

From-SVN: r271735
2019-05-29 09:22:17 +00:00
Rainer Orth
e54b1a92ac Remove pre-Solaris 11/SPARC unwinding support
* config/sparc/sol2-unwind.h [__arch64__] (sparc64_is_sighandler):
	Remove Solaris 9 and 10 support.
	(sparc_is_sighandler): Likewise.

From-SVN: r271715
2019-05-28 17:27:51 +00:00
John David Anglin
abbb83070a linux-unwind.h (pa32_fallback_frame_state): Add cast.
* config/pa/linux-unwind.h (pa32_fallback_frame_state): Add cast.

From-SVN: r271631
2019-05-26 15:16:50 +00:00
Kwok Cheung Yeung
7039cebfa8 Add support for constructors and destuctors on GCN
2019-05-22  Kwok Cheung Yeung  <kcy@codesourcery.com>
            Andrew Stubbs  <amd@codesourcery.com>

	gcc/
	* config.gcc (gcc_cv_initfini_array): Set for AMD GCN.
	* config/gcn/gcn-run.c (init_array_kernel, fini_array_kernel): New.
	(kernel): Rename to...
	(main_kernel): ... this.
	(load_image): Load _init_array and _fini_array kernels.
	(run): Add argument for kernel to run.
	(main): Run init_array_kernel before main_kernel, and
	fini_array_kernel after.
	* config/gcn/gcn.c (gcn_handle_amdgpu_hsa_kernel_attribute): Allow
	amdgpu_hsa_kernel attribute on functions.
	(gcn_disable_constructors): Delete.
	(TARGET_ASM_CONSTRUCTOR, TARGET_ASM_DESTRUCTOR): Delete.
	* config/gcn/crt0.c (size_t): Define.
	(_init_array, _fini_array): New.
	(__preinit_array_start, __preinit_array_end,
	__init_array_start, __init_array_end,
	__fini_array_start, __fini_array_end): Declare weak references.

Co-Authored-By: Andrew Stubbs <ams@codesourcery.com>

From-SVN: r271526
2019-05-22 22:14:08 +00:00
Martin Sebor
a9c697b883 trans.c (check_inlining_for_nested_subprog): Quote reserved names.
gcc/ada/ChangeLog:

        * gcc-interface/trans.c (check_inlining_for_nested_subprog): Quote
        reserved names.

gcc/brig/ChangeLog:

        * brigfrontend/brig-control-handler.cc
        (brig_directive_control_handler::operator): Remove trailing newline
        from a diagnostic.
        * brigfrontend/brig-module-handler.cc
        (brig_directive_module_handler::operator): Remove a duplicated space
        from a diagnostic.

gcc/c/ChangeLog:

        * c-decl.c (start_decl): Quote keywords, operators, and
        types in diagnostics.
        (finish_decl): Same.
        * c-parser.c (c_parser_asm_statement): Same.
        (c_parser_conditional_expression): Same.
        (c_parser_transaction_cancel): Same.
        * c-typeck.c (c_common_type): Same.
        (build_conditional_expr): Same.
        (digest_init): Same.
        (process_init_element): Same.
        (build_binary_op): Same.

gcc/c-family/ChangeLog:

        * c-attribs.c (handle_no_sanitize_attribute): Quote identifiers,
        keywords, operators, and types in diagnostics.
        (handle_scalar_storage_order_attribute): Same.
        (handle_mode_attribute): Same.
        (handle_visibility_attribute): Same.
        (handle_assume_aligned_attribute): Same.
        (handle_no_split_stack_attribute): Same.
        * c-common.c (shorten_compare): Same.
        (c_common_truthvalue_conversion): Same.
        (cb_get_source_date_epoch): Same.
        * c-lex.c (cb_def_pragma): Quote keywords, operators, and types
        in diagnostics.
        (interpret_float): Same.
        * c-omp.c (c_finish_omp_for): Same.
        * c-opts.c (c_common_post_options): Same.
        * c-pch.c (c_common_pch_pragma): Same.
        * c-pragma.c (pop_alignment): Same.
        (handle_pragma_pack): Same.
        (apply_pragma_weak): Same.
        (handle_pragma_weak): Same.
        (handle_pragma_scalar_storage_order): Same.
        (handle_pragma_redefine_extname): Same.
        (add_to_renaming_pragma_list): Same.
        (maybe_apply_renaming_pragma): Same.
        (push_visibility): Same.
        (handle_pragma_visibility): Same.
        (handle_pragma_optimize): Same.
        (handle_pragma_message): Same.
        * c-warn.c (warn_for_omitted_condop): Same.
        (lvalue_error): Same.

gcc/cp/ChangeLog:

        * call.c (print_z_candidate): Wrap diagnostic text in a gettext
        macro.  Adjust.
        (print_z_candidates): Same.
        (build_conditional_expr_1): Quote keywords, operators, and types
        in diagnostics.
        (build_op_delete_call): Same.
        (maybe_print_user_conv_context): Wrap diagnostic text in a gettext
        macro.
        (convert_like_real): Same.
        (convert_arg_to_ellipsis): Quote keywords, operators, and types
        in diagnostics.
        (build_over_call): Same.
        (joust): Break up an overlong line.  Wrap diagnostic text in a gettext
        macro.
        * constexpr.c (cxx_eval_check_shift_p): Spell out >= in English.
        (cxx_eval_constant_expression): Quote keywords, operators, and types
        in diagnostics.
        (potential_constant_expression_1): Same.
        * cp-gimplify.c (cp_genericize_r): Same.
        * cvt.c (maybe_warn_nodiscard): Quote keywords, operators, and types
        in diagnostics.
        (type_promotes_to): Same.
        * decl.c (check_previous_goto_1): Same.
        (check_goto): Same.
        (start_decl): Same.
        (cp_finish_decl): Avoid parenthesizing a sentence for consistency.
        (grok_op_properties): Quote keywords, operators, and types
        in diagnostics.
        * decl2.c (grokfield): Same.
        (coerce_delete_type): Same.
        * except.c (is_admissible_throw_operand_or_catch_parameter): Same.
        * friend.c (do_friend): Quote C++ tokens.
        * init.c (build_new_1): Quote keywords, operators, and types
        in diagnostics.
        (build_vec_delete_1): Same.
        (build_delete): Same.
        * lex.c (parse_strconst_pragma): Same.
        (handle_pragma_implementation): Same.
        (unqualified_fn_lookup_error): Same.
        * mangle.c (write_type): Same.
        * method.c (defaulted_late_check): Avoid two consecutive punctuators.
        * name-lookup.c (cp_binding_level_debug): Remove a trailing newline.
        (pop_everything): Same.
        * parser.c (cp_lexer_start_debugging): Quote a macro name.
        in a diagnostic
        (cp_lexer_stop_debugging): Same.
        (cp_parser_userdef_numeric_literal): Quote a C++ header name
        in a diagnostic.
        (cp_parser_nested_name_specifier_opt): Quote keywords, operators,
        and types in diagnostics.
        (cp_parser_question_colon_clause): Same.
        (cp_parser_asm_definition): Same.
        (cp_parser_init_declarator): Same.
        (cp_parser_template_declaration_after_parameters): Avoid capitalizing
        a sentence in a diagnostic.
        (cp_parser_omp_declare_reduction): Quote keywords, operators, and types
        in diagnostics.
        (cp_parser_transaction): Same.
        * pt.c (maybe_process_partial_specialization): Replace second call
        to permerror with inform for consistency with other uses.
        (expand_integer_pack): Quote keywords, operators, and types
        in diagnostics.
        * rtti.c (get_typeid): Quote keywords, operators, and types
        in diagnostics.
        (build_dynamic_cast_1): Same.
        * semantics.c (finish_asm_stmt): Same.
        (finish_label_decl): Same.
        (finish_bases): Same.
        (finish_offsetof): Same.
        (cp_check_omp_declare_reduction): Same.
        (finish_decltype_type): Same.
        * tree.c (handle_init_priority_attribute): Same.  Add detail
        to diagnostics.
        (maybe_warn_zero_as_null_pointer_constant): Same.
        * typeck.c (cp_build_binary_op): Quote keywords, operators, and types
        in diagnostics.
        (cp_build_unary_op): Same.
        (check_for_casting_away_constness): Same.
        (build_static_cast): Same.
        (build_const_cast_1): Same.
        (maybe_warn_about_returning_address_of_local): Same.
        (check_return_expr): Same.
        * typeck2.c (abstract_virtuals_error_sfinae): Same.
        (digest_init_r): Replace a tab with spaces in a diagnostic.
        (build_functional_cast): Quote keywords, operators, and types
        in diagnostics.

gcc/d/ChangeLog:

        * d-builtins.cc (d_init_builtins): Quote keywords, operators,
        and types in diagnostics.
        * d-codegen.cc (get_array_length): Same.  Replace can't with cannot.
        * d-convert.cc (convert_expr): Same.
        * d-frontend.cc (getTypeInfoType): Quote an option name in
        a diagnostic.
        * d-lang.cc (d_handle_option): Same.
        (d_parse_file): Same.
        * decl.cc: Remove a trailing period from a diagnostic.
        * expr.cc: Use a directive for an apostrophe.
        * toir.cc: Quote keywords, operators, and types in diagnostics.
        * typeinfo.cc (build_typeinfo): Quote an option name in a diagnostic.

gcc/fortran/ChangeLog:

	* gfortranspec.c (append_arg): Spell out the word "argument."

gcc/ChangeLog:

        * config/i386/i386-expand.c (get_element_number): Quote keywords
        and other internal names in diagnostics.  Adjust other diagnostic
        formatting issues noted by -Wformat-diag.
        * config/i386/i386-features.c
        (ix86_mangle_function_version_assembler_name): Same.
        * config/i386/i386-options.c (ix86_handle_abi_attribute): Same.
        * config/i386/i386.c (ix86_function_type_abi): Same.
        (ix86_function_ms_hook_prologue): Same.
        (classify_argument): Same.
        (ix86_expand_prologue): Same.
        (ix86_md_asm_adjust): Same.
        (ix86_memmodel_check): Same.

gcc/ChangeLog:

        * builtins.c (expand_builtin_atomic_always_lock_free): Quote
        identifiers, keywords, operators, and types in diagnostics.  Correct
        quoting, spelling, and sentence capitalization issues.
        (expand_builtin_atomic_is_lock_free): Same.
        (fold_builtin_next_arg): Same.
        * cfgexpand.c (expand_one_var): Same.
        (tree_conflicts_with_clobbers_p): Same.
        (expand_asm_stmt): Same.
        (verify_loop_structure): Same.
        * cgraphunit.c (process_function_and_variable_attributes): Same.
        * collect-utils.c (collect_execute): Same.
        * collect2.c (maybe_run_lto_and_relink): Same.
        (is_lto_object_file): Same.
        (scan_prog_file): Same.
        * convert.c (convert_to_real_1): Same.
        * dwarf2out.c (dwarf2out_begin_prologue): Same.
        * except.c (verify_eh_tree): Same.
        * gcc.c (execute): Same.
        (eval_spec_function): Same.
        (run_attempt): Same.
        (driver::set_up_specs): Same.
        (compare_debug_auxbase_opt_spec_function): Same.
        * gcov-tool.c (unlink_gcda_file): Same.
        (do_merge): Same.
        (do_rewrite): Same.
        * gcse.c (gcse_or_cprop_is_too_expensive): Same.
        * gimplify.c (gimplify_asm_expr): Same.
        (gimplify_adjust_omp_clauses): Same.
        * hsa-gen.c (gen_hsa_addr_insns): Same.
        (gen_hsa_insns_for_load): Same.
        (gen_hsa_cmp_insn_from_gimple): Same.
        (gen_hsa_insns_for_operation_assignment): Same.
        (gen_get_level): Same.
        (gen_hsa_alloca): Same.
        (omp_simple_builtin::generate): Same.
        (gen_hsa_atomic_for_builtin): Same.
        (gen_hsa_insns_for_call): Same.
        * input.c (dump_location_info): Same.
        * ipa-devirt.c (compare_virtual_tables): Same.
        * ira.c (ira_setup_eliminable_regset): Same.
        * lra-assigns.c (lra_assign): Same.
        * lra-constraints.c (lra_constraints): Same.
        * lto-streamer-in.c (lto_input_mode_table): Same.
        * lto-wrapper.c (get_options_from_collect_gcc_options): Same.
        (merge_and_complain): Same.
        (compile_offload_image): Same.
        (compile_images_for_offload_targets): Same.
        (debug_objcopy): Same.
        (run_gcc): Same.
        (main): Same.
        * opts.c (print_specific_help): Same.
        (parse_no_sanitize_attribute): Same.
        (print_help): Same.
        (handle_param): Same.
        * plugin.c (add_new_plugin): Same.
        (parse_plugin_arg_opt): Same.
        (try_init_one_plugin): Same.
        * print-rtl.c (debug_bb_n_slim): Quote identifiers, keywords,
        operators, and types in diagnostics.  Correct quoting and spelling
        issues.
        * read-rtl-function.c (parse_edge_flag_token): Same.
        (function_reader::parse_enum_value): Same.
        * reg-stack.c (check_asm_stack_operands): Same.
        * regcprop.c (validate_value_data): Same.
        * sched-rgn.c (make_pass_sched_fusion): Same.
        * stmt.c (check_unique_operand_names): Same.
        * targhooks.c (default_target_option_pragma_parse): Same.
        * tlink.c (recompile_files): Same.
        * toplev.c (process_options): Same.
        (do_compile): Same.
        * trans-mem.c (diagnose_tm_1): Same.
        (ipa_tm_scan_irr_block): Same.
        (ipa_tm_diagnose_transaction): Same.
        * tree-cfg.c (verify_address): Same.  Use get_tree_code_name to
        format a tree code name in a diagnostic.
        (verify_types_in_gimple_min_lval): Same.
        (verify_types_in_gimple_reference): Same.
        (verify_gimple_call): Same.
        (verify_gimple_assign_unary): Same.
        (verify_gimple_assign_binary): Same.
        (verify_gimple_assign_ternary): Same.
        (verify_gimple_assign_single): Same.
        (verify_gimple_switch): Same.
        (verify_gimple_label): Same.
        (verify_gimple_phi): Same.
        (verify_gimple_in_seq): Same.
        (verify_eh_throw_stmt_node): Same.
        (collect_subblocks): Same.
        (gimple_verify_flow_info): Same.
        (do_warn_unused_result): Same.
        * tree-inline.c (expand_call_inline): Same.
        * tree-into-ssa.c (update_ssa): Same.
        * tree.c (tree_int_cst_elt_check_failed): Same.
        (tree_vec_elt_check_failed): Same.
        (omp_clause_operand_check_failed): Same.
        (verify_type_variant): Same.
        (verify_type): Same.
        * value-prof.c (verify_histograms): Same.
        * varasm.c (assemble_start_function): Same.

gcc/lto/ChangeLog:

        * lto-dump.c (lto_main): Same.
        * lto.c (stream_out): Same.

gcc/objc/ChangeLog:

        * objc-act.c (objc_begin_catch_clause): Quote keywords and options
        in diagnostics.
        (objc_build_throw_stmt): Same.
        (objc_finish_message_expr): Same.
        (get_super_receiver): Same.
        * objc-next-runtime-abi-01.c (objc_next_runtime_abi_01_init): Spell
        out "less than" in English./
        * objc-next-runtime-abi-02.c (objc_next_runtime_abi_02_init): Spell
        out "greater" in English.

gcc/testsuite/ChangeLog:

        * c-c++-common/Wbool-operation-1.c: Adjust text of expected diagnostics.
        * c-c++-common/Wvarargs-2.c: Same.
        * c-c++-common/Wvarargs.c: Same.
        * c-c++-common/pr51768.c: Same.
        * c-c++-common/tm/inline-asm.c: Same.
        * c-c++-common/tm/safe-1.c: Same.
        * g++.dg/asm-qual-1.C: Same.
        * g++.dg/asm-qual-3.C: Same.
        * g++.dg/conversion/dynamic1.C: Same.
        * g++.dg/cpp0x/constexpr-89599.C: Same.
        * g++.dg/cpp0x/constexpr-cast.C: Same.
        * g++.dg/cpp0x/constexpr-shift1.C: Same.
        * g++.dg/cpp0x/lambda/lambda-conv11.C: Same.
        * g++.dg/cpp0x/nullptr04.C: Same.
        * g++.dg/cpp0x/static_assert12.C: Same.
        * g++.dg/cpp0x/static_assert8.C: Same.
        * g++.dg/cpp1y/lambda-conv1.C: Same.
        * g++.dg/cpp1y/pr79393-3.C: Same.
        * g++.dg/cpp1y/static_assert1.C: Same.
        * g++.dg/cpp1z/constexpr-if4.C: Same.
        * g++.dg/cpp1z/constexpr-if5.C: Same.
        * g++.dg/cpp1z/constexpr-if9.C: Same.
        * g++.dg/eh/goto2.C: Same.
        * g++.dg/eh/goto3.C: Same.
        * g++.dg/expr/static_cast8.C: Same.
        * g++.dg/ext/flexary5.C: Same.
        * g++.dg/ext/utf-array-short-wchar.C: Same.
        * g++.dg/ext/utf-array.C: Same.
        * g++.dg/ext/utf8-2.C: Same.
        * g++.dg/gomp/loop-4.C: Same.
        * g++.dg/gomp/macro-4.C: Same.
        * g++.dg/gomp/udr-1.C: Same.
        * g++.dg/init/initializer-string-too-long.C: Same.
        * g++.dg/other/offsetof9.C: Same.
        * g++.dg/ubsan/pr63956.C: Same.
        * g++.dg/warn/Wbool-operation-1.C: Same.
        * g++.dg/warn/Wtype-limits-Wextra.C: Same.
        * g++.dg/warn/Wtype-limits.C: Same.
        * g++.dg/wrappers/pr88680.C: Same.
        * g++.old-deja/g++.mike/eh55.C: Same.
        * gcc.dg/Wsign-compare-1.c: Same.
        * gcc.dg/Wtype-limits-Wextra.c: Same.
        * gcc.dg/Wtype-limits.c: Same.
        * gcc.dg/Wunknownprag.c: Same.
        * gcc.dg/Wunsuffixed-float-constants-1.c: Same.
        * gcc.dg/asm-6.c: Same.
        * gcc.dg/asm-qual-1.c: Same.
        * gcc.dg/cast-1.c: Same.
        * gcc.dg/cast-2.c: Same.
        * gcc.dg/cast-3.c: Same.
        * gcc.dg/cpp/source_date_epoch-2.c: Same.
        * gcc.dg/debug/pr85252.c: Same.
        * gcc.dg/dfp/cast-bad.c: Same.
        * gcc.dg/format/gcc_diag-1.c: Same.
        * gcc.dg/format/gcc_diag-11.c: Same.New test.
        * gcc.dg/gcc_diag-11.c: Same.New test.
        * gcc.dg/gnu-cond-expr-2.c: Same.
        * gcc.dg/gnu-cond-expr-3.c: Same.
        * gcc.dg/gomp/macro-4.c: Same.
        * gcc.dg/init-bad-1.c: Same.
        * gcc.dg/init-bad-2.c: Same.
        * gcc.dg/init-bad-3.c: Same.
        * gcc.dg/pr27528.c: Same.
        * gcc.dg/pr48552-1.c: Same.
        * gcc.dg/pr48552-2.c: Same.
        * gcc.dg/pr59846.c: Same.
        * gcc.dg/pr61096-1.c: Same.
        * gcc.dg/pr8788-1.c: Same.
        * gcc.dg/pr90082.c: Same.
        * gcc.dg/simd-2.c: Same.
        * gcc.dg/spellcheck-params-2.c: Same.
        * gcc.dg/spellcheck-params.c: Same.
        * gcc.dg/strlenopt-49.c: Same.
        * gcc.dg/tm/pr52141.c: Same.
        * gcc.dg/torture/pr51106-1.c: Same.
        * gcc.dg/torture/pr51106-2.c: Same.
        * gcc.dg/utf-array-short-wchar.c: Same.
        * gcc.dg/utf-array.c: Same.
        * gcc.dg/utf8-2.c: Same.
        * gcc.dg/warn-sprintf-no-nul.c: Same.
        * gcc.target/i386/asm-flag-0.c: Same.
        * gcc.target/i386/inline_error.c: Same.
        * gcc.target/i386/pr30848.c: Same.
        * gcc.target/i386/pr39082-1.c: Same.
        * gcc.target/i386/pr39678.c: Same.
        * gcc.target/i386/pr57756.c: Same.
        * gcc.target/i386/pr68843-1.c: Same.
        * gcc.target/i386/pr79804.c: Same.
        * gcc.target/i386/pr82673.c: Same.
        * obj-c++.dg/class-protocol-1.mm: Same.
        * obj-c++.dg/exceptions-3.mm: Same.
        * obj-c++.dg/exceptions-4.mm: Same.
        * obj-c++.dg/exceptions-5.mm: Same.
        * obj-c++.dg/exceptions-6.mm: Same.
        * obj-c++.dg/method-12.mm: Same.
        * obj-c++.dg/method-13.mm: Same.
        * obj-c++.dg/method-6.mm: Same.
        * obj-c++.dg/method-7.mm: Same.
        * obj-c++.dg/method-9.mm: Same.
        * obj-c++.dg/method-lookup-1.mm: Same.
        * obj-c++.dg/proto-lossage-4.mm: Same.
        * obj-c++.dg/protocol-qualifier-2.mm: Same.
        * objc.dg/call-super-2.m: Same.
        * objc.dg/class-protocol-1.m: Same.
        * objc.dg/desig-init-1.m: Same.
        * objc.dg/exceptions-3.m: Same.
        * objc.dg/exceptions-4.m: Same.
        * objc.dg/exceptions-5.m: Same.
        * objc.dg/exceptions-6.m: Same.
        * objc.dg/method-19.m: Same.
        * objc.dg/method-2.m: Same.
        * objc.dg/method-5.m: Same.
        * objc.dg/method-6.m: Same.
        * objc.dg/method-7.m: Same.
        * objc.dg/method-lookup-1.m: Same.
        * objc.dg/proto-hier-1.m: Same.
        * objc.dg/proto-lossage-4.m: Same.

From-SVN: r271338
2019-05-17 11:55:43 -06:00
H.J. Lu
2581344df6 soft-fp: Update soft-fp from glibc
This patch is updating all soft-fp from glibc, most changes are
copyright years update, and changes other than years update are

	* soft-fp/extenddftf2.c: Use "_FP_W_TYPE_SIZE < 64" to check if
	4_FP_W_TYPEs are used for IEEE quad precision.
	* soft-fp/extendhftf2.c: Likewise.
	* soft-fp/extendsftf2.c: Likewise.
	* soft-fp/extendxftf2.c: Likewise.
	* soft-fp/trunctfdf2.c: Likewise.
	* soft-fp/trunctfhf2.c: Likewise.
	* soft-fp/trunctfsf2.c: Likewise.
	* soft-fp/trunctfxf2.c: Likewise.
	* config/rs6000/ibm-ldouble.c: Likewise.

From-SVN: r271327
2019-05-17 07:37:39 -07:00
Rainer Orth
ccd1242eec Remove obsolete Solaris 10 support
libstdc++-v3:
	* config/os/solaris/solaris2.10: Move to ...
	* config/os/solaris: ... this.
	* configure.host (os_include_dir): Adapt.
	(abi_baseline_pair): Remove Solaris 10 handling.
	* config/abi/post/i386-solaris2.10: Remove.
	* config/abi/post/sparc-solaris2.10: Remove.
	* config/abi/post/i386-solaris2.11: Rename to ...
	* config/abi/post/i386-solaris: ... this.
	* config/abi/post/sparc-solaris2.11: Rename to ...
	* config/abi/post/sparc-solaris: ... this.

	* libsupc++/new_opa.cc [_GLIBCXX_HAVE_MEMALIGN] [__sun]: Remove
	workaround.

	* testsuite/ext/enc_filebuf/char/13598.cc: Remove *-*-solaris2.10
	xfail.

	libsanitizer:
	* configure.ac (have_dl_iterate_phdr): Remove *-*-solaris2.10*
	handling.
	* configure: Regenerate.

	libgcc:
	* config.host: Simplify various *-*-solaris2.1[0-9]* to
	*-*-solaris2*.
	* configure.ac: Likewise.
	* configure: Regenerate.

	* config/i386/sol2-unwind.h (x86_fallback_frame_state): Remove
	Solaris 10 and Solaris 11 < snv_125 handling.

	libbacktrace:
	* configure.ac (have_dl_iterate_phdr): Remove *-*-solaris2.10*
	handling.
	* configure: Regenerate.

	gcc/testsuite:
	* gcc.dg/atomic/c11-atomic-exec-4.c: Simplify triplet to
	*-*-solaris2*.
	* gcc.dg/atomic/c11-atomic-exec-5.c: Likewise.
	* gcc.dg/c99-math-double-1.c: Likewise.
	* gcc.dg/c99-math-float-1.c: Likewise.
	* gcc.dg/c99-math-long-double-1.c: Likewise.
	* gcc.misc-tests/linkage.exp: Simplify triplet to
	x86_64-*-solaris2*.

	* gcc.target/i386/mcount_pic.c: Remove *-*-solaris2.10* && !gld
	xfail.
	* gcc.target/i386/pr63620.c: Likewise.

	* lib/target-supports.exp (check_sse_os_support_available): Remove
	Solaris 9/x86 workaround.

	gcc:
	* config.gcc: Move *-*-solaris2.10* from obsolete configurations
	to unsupported ones.
	Simplify x86_64-*-solaris2.1[0-9]* to x86_64-*-solaris2*.
	* config.host: Likewise.
	* config/i386/sol2.h (ASM_COMMENT_START): Remove.
	* config/sparc/driver-sparc.c (host_detect_local_cpu) [__sun__ &&
	__svr4__]: Remove "brand" fallback.
	[!KSTAT_DATA_STRING]: Remove.
	* configure.ac (gcc_cv_ld_hidden): Simplify *-*-solaris2.1[0-9]*
	to *-*-solaris2*.
	(comdat_group): Likewise.
	(set_have_as_tls): Likewise.
	(gcc_cv_target_dl_iterate_phdr): Likewise.
	(gcc_cv_as_shf_merge): Remove Solaris 10/x86 workaround.
	(gcc_cv_ld_aligned_shf_merge): Remove Solaris 10/SPARC workaround.
	* configure: Regenerate.
	* doc/install.texi: Simplify Solaris target triplets.
	(Specific, i?86-*-solaris2*): Remove Solaris 10 references.
	(Specific, *-*-solaris2*): Document Solaris 10 removal.
	Remove Solaris 10 references.
	Remove obsolete Solaris bug reference.
	(Specific, sparc-sun-solaris2.10): Remove.

From-SVN: r271183
2019-05-14 17:17:23 +00:00
Iain Sandoe
ef5eb79dfd darwin, powerpc - set .machine in an asm file.
The asm file fails to build if we use a modern assembler
which checks that the machine is consistent with the 
filetype.  Fixed by adjusting in a similar manner to 
other assembler.

libgcc/

2019-05-12  Iain Sandoe  <iain@sandoe.co.uk>

	* config/rs6000/darwin-vecsave.S: Set .machine appropriately.

From-SVN: r271111
2019-05-12 19:26:16 +00:00
Hongtao Liu
4f0e90fae9 Enable support for bfloat16 which will be in Future Cooper Lake.
There are 3 instructions for AVX512BF16: VCVTNE2PS2BF16, VCVTNEPS2BF16 and
DPBF16PS instructions, which are Vector Neural Network Instructions
supporting:
    
- VCVTNE2PS2BF16: Convert Two Packed Single Data to One Packed BF16 Data.
- VCVTNEPS2BF16: Convert Packed Single Data to Packed BF16 Data.
- VDPBF16PS: Dot Product of BF16 Pairs Accumulated into Packed Single Precision.

2019-05-07  Wei Xiao  <wei3.xiao@intel.com>

	* common/config/i386/i386-common.c (OPTION_MASK_ISA_AVX512BF16_SET
	OPTION_MASK_ISA_AVX512BF16_UNSET, OPTION_MASK_ISA2_AVX512BW_UNSET): New.
	(OPTION_MASK_ISA2_AVX512F_UNSET): Add OPTION_MASK_ISA_AVX512BF16_UNSET.
	(ix86_handle_option): Handle -mavx512bf16.
	* config.gcc: Add avx512bf16vlintrin.h and avx512bf16intrin.h
	to extra_headers.
	* config/i386/avx512bf16vlintrin.h: New.
	* config/i386/avx512bf16intrin.h: New.
	* config/i386/cpuid.h (bit_AVX512BF16): New.
	* config/i386/driver-i386.c (host_detect_local_cpu): Detect BF16.
	* config/i386/i386-builtin-types.def: Add new types.
	* config/i386/i386-builtin.def: Add new builtins.
	* config/i386/i386-c.c (ix86_target_macros_internal): Define
	__AVX512BF16__.
	* config/i386/i386-option.c (ix86_target_string): Add -mavx512bf16.
	(ix86_option_override_internal): Handle BF16.
	(ix86_valid_target_attribute_inner_p): Ditto.
	* config/i386/i386-expand.c (ix86_expand_args_builtin): Ditto.
	* config/i386/i386-builtin.c (enum processor_features): Add
	F_AVX512BF16.
	(static const _isa_names_table isa_names_table): Ditto.
	* config/i386/i386.h (TARGET_AVX512BF16, TARGET_AVX512BF16_P): New.
	(PTA_AVX512BF16): Ditto.
	* config/i386/i386.opt: Add -mavx512bf16.
	* config/i386/immintrin.h: Include avx512bf16intrin.h
	and avx512bf16vlintrin.h.
	* config/i386/sse.md (avx512f_cvtne2ps2bf16_<mode><mask_name>,
	avx512f_cvtneps2bf16_<mode><mask_name>,
	avx512f_dpbf16ps_<mode><mask_half_name>): New define_insn patterns.
	* config/i386/subst.md (mask_half): Add new subst.
	* doc/invoke.texi: Document -mavx512bf16.

2019-05-07  Wei Xiao  <wei3.xiao@intel.com>

	* gcc.target/i386/avx512bf16-vcvtne2ps2bf16-1.c: New test.
	* gcc.target/i386/avx512bf16-vcvtneps2bf16-1.c: New test.
	* gcc.target/i386/avx512bf16-vdpbf16ps-1.c: New test.
	* gcc.target/i386/avx512bf16vl-vcvtne2ps2bf16-1.c: New test.
	* gcc.target/i386/avx512bf16vl-vcvtneps2bf16-1.c: New test.
	* gcc.target/i386/avx512bf16vl-vdpbf16ps-1.c: New test.
	* gcc.target/i386/builtin_target.c: Handle avx512bf16.
	* gcc.target/i386/sse-12.c: Add -mavx512bf16.
	* gcc.target/i386/sse-13.c: Ditto.
	* gcc.target/i386/sse-14.c: Ditto.
	* gcc.target/i386/sse-22.c: Ditto.
	* gcc.target/i386/sse-23.c: Ditto.
	* g++.dg/other/i386-2.C: Ditto.
	* g++.dg/other/i386-3.C: Ditto.

2019-05-07  Hongtao Liu  <hongtao.liu@intel.com>

	* config/i386/cpuinfo.c (get_available_features): Detect BF16.
	* config/i386/cpuinfo.h (enum processor_features): Add
	FEATURE_AVX512BF16.

From-SVN: r271006
2019-05-08 10:21:40 +00:00
Ramana Radhakrishnan
48528842bd re PR target/89093 (C++ exception handling clobbers d8 VFP register)
PR target/89093
	* config/arm/arm.c (aapcs_vfp_is_call_or_return_candidate): Diagnose
	if used with general-regs-only.
	(arm_conditional_register_usage): Don't add non-general regs if
	general-regs-only.
	(arm_valid_target_attribute_rec): Handle general-regs-only.
	* config/arm/arm.h (TARGET_HARD_FLOAT): Return false if
	general-regs-only.
	(TARGET_HARD_FLOAT_SUB): Define.
	(TARGET_SOFT_FLOAT): Define as negation of TARGET_HARD_FLOAT_SUB.
	(TARGET_REALLY_IWMMXT): Add && !TARGET_GENERAL_REGS_ONLY.
	(TARGET_REALLY_IWMMXT2): Likewise.
	* config/arm/arm.opt: Add -mgeneral-regs-only.
	* doc/extend.texi: Document ARM general-regs-only target.
	* doc/invoke.texi: Document ARM -mgeneral-regs-only.
libgcc/
	* config/arm/pr-support.c: Add #pragma GCC target("general-regs-only").
	* config/arm/unwind-arm.c: Likewise.
	* unwind-c.c (PERSONALITY_FUNCTION): Add general-regs-only target
	attribute for ARM.
libobjc/
	* exception.c (PERSONALITY_FUNCTION): Add general-regs-only target
	attribute for ARM.
libphobos/
	* libdruntime/gcc/deh.d: Import gcc.attribute.
	(personality_fn_attributes): New enum.
	(scanLSDA, CONTINUE_UNWINDING, gdc_personality, __gdc_personality):
	Add @personality_fn_attributes.
libstdc++-v3/
	* libsupc++/eh_personality.cc (PERSONALITY_FUNCTION): Add
	general-regs-only target attribute for ARM.

Co-Authored-By: Bernd Edlinger <bernd.edlinger@hotmail.de>
Co-Authored-By: Jakub Jelinek <jakub@redhat.com>

From-SVN: r270504
2019-04-23 12:03:41 +02:00
Monk Chiang
887e182f05 [NDS32] Refine force unwind. Linux kernel only uses RT_SIGRETURN.
libgcc/
	* config/nds32/linux-unwind.h (SIGRETURN): Remove.
	(RT_SIGRETURN): Update.
	(nds32_fallback_frame_state): Update.

From-SVN: r270363
2019-04-15 08:19:23 +00:00
Martin Sebor
a90b0cdd44 extend.texi (__clear_cache): Correct signature.
gcc/ChangeLog:

	* doc/extend.texi (__clear_cache): Correct signature.

libgcc/ChangeLog:

	* libgcc2.h (__clear_cache): Correct signature.
	* libgcc2.c (__clear_cache): Same.

gcc/testsuite/ChangeLog:

	* gcc.dg/Wbuiltin-declaration-mismatch-12.c: New test.

From-SVN: r269082
2019-02-21 16:23:12 -07:00
Uros Bizjak
1ed28eda9f linux-unwind.h (alpha_fallback_frame_state): Cast 'mcontext_t *' &rt_->uc.uc_mcontext to 'struct sigcontext *'.
* config/alpha/linux-unwind.h (alpha_fallback_frame_state):
	Cast 'mcontext_t *' &rt_->uc.uc_mcontext to 'struct sigcontext *'.

From-SVN: r269053
2019-02-20 22:37:21 +01:00
Uros Bizjak
fe95aee9ce unwind-dw2.c (_Unwind_GetGR): Compare regno instead of index to DWARF_ZERO_REG.
* unwind-dw2.c (_Unwind_GetGR) [DWARF_ZERO_REG]: Compare
	regno instead of index to DWARF_ZERO_REG.

From-SVN: r269021
2019-02-19 17:10:00 +01:00
Eric Botcazou
bf7988f1e9 lib2funcs.c (__set_trampoline_parity): Replace TRAMPOLINE_SIZE with __LIBGCC_TRAMPOLINE_SIZE__.
libgcc/
	* config/visium/lib2funcs.c (__set_trampoline_parity): Replace
	TRAMPOLINE_SIZE with __LIBGCC_TRAMPOLINE_SIZE__.
gcc/
	* final.c (insn_current_reference_address): Replace test on JUMP_P
	with test on jump_to_label_p.
	* config/visium/visium-passes.def: New file.
	* config/visium/t-visium (PASSES_EXTRA): Define.
	* config/visium/visium-protos.h (make_pass_visium_reorg): Declare.
	* config/visium/visium.h (TRAMPOLINE_SIZE): Adjust.
	(TRAMPOLINE_ALIGNMENT): Define.
	* config/visium/visium.c (visium_option_override): Do not register
	the machine-specific reorg pass here.
	(visium_trampoline_init): Align the BRA insn on a 64-bit boundary
	for the GR6.
	(output_branch): Adjust threshold for long branch instruction.
	* config/visium/visium.md (cpu): Move around.
	(length): Adjust for the GR6.

From-SVN: r268931
2019-02-15 10:40:34 +00:00
Uros Bizjak
ba2c1ca8c3 t-linux: Add -mfp-rounding-mode=d to HOST_LIBGCC2_CFLAGS.
* config/alpha/t-linux: Add -mfp-rounding-mode=d
	to HOST_LIBGCC2_CFLAGS.

From-SVN: r268430
2019-01-31 21:49:02 +01:00
Uros Bizjak
d1ac2471e7 sfp-exceptions.c (__sfp_handle_exceptions): Remove stray semicolon.
* config/i386/sfp-exceptions.c (__sfp_handle_exceptions):
	Remove stray semicolon.

From-SVN: r268405
2019-01-31 00:09:40 +01:00
H.J. Lu
6395ba73f8 libgcc2.c: Correct DI/TI -> SF/DF conversions
FSTYPE FUNC (DWtype u) in libgcc2.c, which converts DI/TI to SF/DF, has

  /* No leading bits means u == minimum.  */
  if (count == 0)
    return -(Wtype_MAXp1_F * (Wtype_MAXp1_F / 2));

in the third case (where actually count == 0 only means the high part is
minimum).  It should be:

  /* No leading bits means u == minimum.  */
  if (count == 0)
    return Wtype_MAXp1_F * (FSTYPE) (hi | ((UWtype) u != 0));

instead.

gcc/testsuite/

2019-01-23  H.J. Lu  <hongjiu.lu@intel.com>

	PR libgcc/88931
	* gcc.dg/torture/fp-int-convert-timode-1.c: New test.
	* gcc.dg/torture/fp-int-convert-timode-2.c: Likewise.
	* gcc.dg/torture/fp-int-convert-timode-3.c: Likewise.
	* gcc.dg/torture/fp-int-convert-timode-4.c: Likewise.

libgcc/

2019-01-23  Joseph Myers  <joseph@codesourcery.com>

	PR libgcc/88931
	* libgcc2.c (FSTYPE FUNC (DWtype u)): Correct no leading bits
	case.

From-SVN: r268216
2019-01-23 13:41:59 -08:00
Martin Liska
756721ba89 Bump version of __gcov_indirect_call_profiler function as there was ABI change.
2019-01-18  Martin Liska  <mliska@suse.cz>

	* params.def: Fix comment.
	* tree-profile.c (gimple_init_gcov_profiler): Bump function
	name.
	(gimple_gen_ic_func_profiler): Likewise.
2019-01-18  Martin Liska  <mliska@suse.cz>

	* gcc.dg/no_profile_instrument_function-attr-1.c: Update
	expected function name.
2019-01-18  Martin Liska  <mliska@suse.cz>

	* libgcov-profiler.c (__gcov_indirect_call_profiler_v2): Rename
	to ...
	(__gcov_indirect_call_profiler_v3): ... this.
	* libgcov.h (__gcov_indirect_call_profiler_v2): Likewise.
	(__gcov_indirect_call_profiler_v3): Likewise.
	* Makefile.in: Bump function name.

From-SVN: r268071
2019-01-18 11:32:53 +00:00
Martin Liska
d273c40a55 Update error message prefix in libgcov profiling.
2019-01-18  Martin Liska  <mliska@suse.cz>

	* libgcov-driver.c (GCOV_PROF_PREFIX): Define.
	(gcov_version): Use in gcov_error.
	(merge_one_data): Likewise.
	(dump_one_gcov): Likewise.

From-SVN: r268070
2019-01-18 11:31:45 +00:00
Martin Liska
be9d9fdbed Describe better version mismatch in libgcov driver.
2019-01-18  Martin Liska  <mliska@suse.cz>

	* libgcov-driver.c (gcov_version_string): New function.
	(gcov_version): Convert version integer into string.

From-SVN: r268069
2019-01-18 11:30:56 +00:00
Andrew Stubbs
91d7b7fe84 GCN libgcc.
This patch contains the GCN port of libgcc.

2019-01-17  Andrew Stubbs  <ams@codesourcery.com>
	    Kwok Cheung Yeung  <kcy@codesourcery.com>
	    Julian Brown  <julian@codesourcery.com>
	    Tom de Vries  <tom@codesourcery.com>

	libgcc/
	* config.host: Recognize amdgcn*-*-amdhsa.
	* config/gcn/crt0.c: New file.
	* config/gcn/lib2-divmod-hi.c: New file.
	* config/gcn/lib2-divmod.c: New file.
	* config/gcn/lib2-gcn.h: New file.
	* config/gcn/sfp-machine.h: New file.
	* config/gcn/t-amdgcn: New file.


Co-Authored-By: Julian Brown <julian@codesourcery.com>
Co-Authored-By: Kwok Cheung Yeung <kcy@codesourcery.com>
Co-Authored-By: Tom de Vries <tom@codesourcery.com>

From-SVN: r268021
2019-01-17 12:29:13 +00:00
Sandra Loosemore
6791469314 PR other/16615 [1/5]
2019-01-09  Sandra Loosemore  <sandra@codesourcery.com>

	PR other/16615 [1/5]

	contrib/
	* mklog: Mechanically replace "can not" with "cannot".

	gcc/
	* Makefile.in: Mechanically replace "can not" with "cannot".
	* alias.c: Likewise.
	* builtins.c: Likewise.
	* calls.c: Likewise.
	* cgraph.c: Likewise.
	* cgraph.h: Likewise.
	* cgraphclones.c: Likewise.
	* cgraphunit.c: Likewise.
	* combine-stack-adj.c: Likewise.
	* combine.c: Likewise.
	* common/config/i386/i386-common.c: Likewise.
	* config/aarch64/aarch64.c: Likewise.
	* config/alpha/sync.md: Likewise.
	* config/arc/arc.c: Likewise.
	* config/arc/predicates.md: Likewise.
	* config/arm/arm-c.c: Likewise.
	* config/arm/arm.c: Likewise.
	* config/arm/arm.h: Likewise.
	* config/arm/arm.md: Likewise.
	* config/arm/cortex-r4f.md: Likewise.
	* config/csky/csky.c: Likewise.
	* config/csky/csky.h: Likewise.
	* config/darwin-f.c: Likewise.
	* config/epiphany/epiphany.md: Likewise.
	* config/i386/i386.c: Likewise.
	* config/i386/sol2.h: Likewise.
	* config/m68k/m68k.c: Likewise.
	* config/mcore/mcore.h: Likewise.
	* config/microblaze/microblaze.md: Likewise.
	* config/mips/20kc.md: Likewise.
	* config/mips/sb1.md: Likewise.
	* config/nds32/nds32.c: Likewise.
	* config/nds32/predicates.md: Likewise.
	* config/pa/pa.c: Likewise.
	* config/rs6000/e300c2c3.md: Likewise.
	* config/rs6000/rs6000.c: Likewise.
	* config/s390/s390.h: Likewise.
	* config/sh/sh.c: Likewise.
	* config/sh/sh.md: Likewise.
	* config/spu/vmx2spu.h: Likewise.
	* cprop.c: Likewise.
	* dbxout.c: Likewise.
	* df-scan.c: Likewise.
	* doc/cfg.texi: Likewise.
	* doc/extend.texi: Likewise.
	* doc/fragments.texi: Likewise.
	* doc/gty.texi: Likewise.
	* doc/invoke.texi: Likewise.
	* doc/lto.texi: Likewise.
	* doc/md.texi: Likewise.
	* doc/objc.texi: Likewise.
	* doc/rtl.texi: Likewise.
	* doc/tm.texi: Likewise.
	* dse.c: Likewise.
	* emit-rtl.c: Likewise.
	* emit-rtl.h: Likewise.
	* except.c: Likewise.
	* expmed.c: Likewise.
	* expr.c: Likewise.
	* fold-const.c: Likewise.
	* genautomata.c: Likewise.
	* gimple-fold.c: Likewise.
	* hard-reg-set.h: Likewise.
	* ifcvt.c: Likewise.
	* ipa-comdats.c: Likewise.
	* ipa-cp.c: Likewise.
	* ipa-devirt.c: Likewise.
	* ipa-fnsummary.c: Likewise.
	* ipa-icf.c: Likewise.
	* ipa-inline-transform.c: Likewise.
	* ipa-inline.c: Likewise.
	* ipa-polymorphic-call.c: Likewise.
	* ipa-profile.c: Likewise.
	* ipa-prop.c: Likewise.
	* ipa-pure-const.c: Likewise.
	* ipa-reference.c: Likewise.
	* ipa-split.c: Likewise.
	* ipa-visibility.c: Likewise.
	* ipa.c: Likewise.
	* ira-build.c: Likewise.
	* ira-color.c: Likewise.
	* ira-conflicts.c: Likewise.
	* ira-costs.c: Likewise.
	* ira-int.h: Likewise.
	* ira-lives.c: Likewise.
	* ira.c: Likewise.
	* ira.h: Likewise.
	* loop-invariant.c: Likewise.
	* loop-unroll.c: Likewise.
	* lower-subreg.c: Likewise.
	* lra-assigns.c: Likewise.
	* lra-constraints.c: Likewise.
	* lra-eliminations.c: Likewise.
	* lra-lives.c: Likewise.
	* lra-remat.c: Likewise.
	* lra-spills.c: Likewise.
	* lra.c: Likewise.
	* lto-cgraph.c: Likewise.
	* lto-streamer-out.c: Likewise.
	* postreload-gcse.c: Likewise.
	* predict.c: Likewise.
	* profile-count.h: Likewise.
	* profile.c: Likewise.
	* recog.c: Likewise.
	* ree.c: Likewise.
	* reload.c: Likewise.
	* reload1.c: Likewise.
	* reorg.c: Likewise.
	* resource.c: Likewise.
	* rtl.def: Likewise.
	* rtl.h: Likewise.
	* rtlanal.c: Likewise.
	* sched-deps.c: Likewise.
	* sched-ebb.c: Likewise.
	* sched-rgn.c: Likewise.
	* sel-sched-ir.c: Likewise.
	* sel-sched.c: Likewise.
	* shrink-wrap.c: Likewise.
	* simplify-rtx.c: Likewise.
	* symtab.c: Likewise.
	* target.def: Likewise.
	* toplev.c: Likewise.
	* tree-call-cdce.c: Likewise.
	* tree-cfg.c: Likewise.
	* tree-complex.c: Likewise.
	* tree-core.h: Likewise.
	* tree-eh.c: Likewise.
	* tree-inline.c: Likewise.
	* tree-loop-distribution.c: Likewise.
	* tree-nrv.c: Likewise.
	* tree-profile.c: Likewise.
	* tree-sra.c: Likewise.
	* tree-ssa-alias.c: Likewise.
	* tree-ssa-dce.c: Likewise.
	* tree-ssa-dom.c: Likewise.
	* tree-ssa-forwprop.c: Likewise.
	* tree-ssa-loop-im.c: Likewise.
	* tree-ssa-loop-ivcanon.c: Likewise.
	* tree-ssa-loop-ivopts.c: Likewise.
	* tree-ssa-loop-niter.c: Likewise.
	* tree-ssa-phionlycprop.c: Likewise.
	* tree-ssa-phiopt.c: Likewise.
	* tree-ssa-propagate.c: Likewise.
	* tree-ssa-threadedge.c: Likewise.
	* tree-ssa-threadupdate.c: Likewise.
	* tree-ssa-uninit.c: Likewise.
	* tree-ssanames.c: Likewise.
	* tree-streamer-out.c: Likewise.
	* tree.c: Likewise.
	* tree.h: Likewise.
	* vr-values.c: Likewise.

	gcc/ada/
	* exp_ch9.adb: Mechanically replace "can not" with "cannot".
	* libgnat/s-regpat.ads: Likewise.
	* par-ch4.adb: Likewise.
	* set_targ.adb: Likewise.
	* types.ads: Likewise.

	gcc/cp/
	* cp-tree.h: Mechanically replace "can not" with "cannot".
	* parser.c: Likewise.
	* pt.c: Likewise.

	gcc/fortran/
	* class.c: Mechanically replace "can not" with "cannot".
	* decl.c: Likewise.
	* expr.c: Likewise.
	* gfc-internals.texi: Likewise.
	* intrinsic.texi: Likewise.
	* invoke.texi: Likewise.
	* io.c: Likewise.
	* match.c: Likewise.
	* parse.c: Likewise.
	* primary.c: Likewise.
	* resolve.c: Likewise.
	* symbol.c: Likewise.
	* trans-array.c: Likewise.
	* trans-decl.c: Likewise.
	* trans-intrinsic.c: Likewise.
	* trans-stmt.c: Likewise.

	gcc/go/
	* go-backend.c: Mechanically replace "can not" with "cannot".
	* go-gcc.cc: Likewise.

	gcc/lto/
	* lto-partition.c: Mechanically replace "can not" with "cannot".
	* lto-symtab.c: Likewise.
	* lto.c: Likewise.

	gcc/objc/
	* objc-act.c: Mechanically replace "can not" with "cannot".

	libbacktrace/
	* backtrace.h: Mechanically replace "can not" with "cannot".

	libgcc/
	* config/c6x/libunwind.S: Mechanically replace "can not" with
	"cannot".
	* config/tilepro/atomic.h: Likewise.
	* config/vxlib-tls.c: Likewise.
	* generic-morestack-thread.c: Likewise.
	* generic-morestack.c: Likewise.
	* mkmap-symver.awk: Likewise.

	libgfortran/
	* caf/single.c: Mechanically replace "can not" with "cannot".
	* io/unit.c: Likewise.

	libobjc/
	* class.c: Mechanically replace "can not" with "cannot".
	* objc/runtime.h: Likewise.
	* sendmsg.c: Likewise.

	liboffloadmic/
	* include/coi/common/COIResult_common.h: Mechanically replace
	"can not" with "cannot".
	* include/coi/source/COIBuffer_source.h: Likewise.

	libstdc++-v3/
	* include/ext/bitmap_allocator.h: Mechanically replace "can not"
	with "cannot".

From-SVN: r267783
2019-01-09 16:37:45 -05:00
Martin Sebor
29d2485270 PR c/88546 - Copy attribute unusable for weakrefs
gcc/c-family/ChangeLog:

	PR c/88546
	* c-attribs.c (handle_copy_attribute): Avoid copying attribute leaf.
	Handle C++ empty throw specification and C11 _Noreturn.
	(has_attribute): Also handle C11 _Noreturn.

gcc/ChangeLog:

	PR c/88546
	* attribs.c (decls_mismatched_attributes): Avoid warning for attribute
	leaf.

gcc/testsuite/ChangeLog:

	PR c/88546
	* g++.dg/ext/attr-copy.C: New test.
	* gcc.dg/attr-copy-4.c: Disable macro expansion tracking.
	* gcc.dg/attr-copy-6.c: New test.
	* gcc.dg/attr-copy-7.c: New test.

From-SVN: r267591
2019-01-04 17:57:30 -07:00
Jakub Jelinek
a554497024 Update copyright years.
From-SVN: r267494
2019-01-01 13:31:55 +01:00
H.J. Lu
da77eace90 C/C++: Add -Waddress-of-packed-member
When address of packed member of struct or union is taken, it may result
in an unaligned pointer value.  This patch adds -Waddress-of-packed-member
to check alignment at pointer assignment and warn unaligned address as
well as unaligned pointer:

$ cat x.i
struct pair_t
{
  char c;
  int i;
} __attribute__ ((packed));

extern struct pair_t p;
int *addr = &p.i;
$ gcc -O2 -S x.i
x.i:8:13: warning: taking address of packed member of ‘struct pair_t’ may result in an unaligned pointer value [-Waddress-of-packed-member]
8 | int *addr = &p.i;
  |             ^

$ cat c.i
struct B { int i; };
struct C { struct B b; } __attribute__ ((packed));

long* g8 (struct C *p) { return p; }
$ gcc -O2 -S c.i -Wno-incompatible-pointer-types
c.i: In function ‘g8’:
c.i:4:18: warning: converting a packed ‘struct C *’ pointer (alignment 1) to ‘long int *’ (alignment 8) may may result in an unaligned pointer value [-Waddress-of-packed-member]
4 | long* g8 (struct C *p) { return p; }
  |                  ^
c.i:2:8: note: defined here
2 | struct C { struct B b; } __attribute__ ((packed));
  |        ^
$

This warning is enabled by default.  Since read_encoded_value_with_base
in unwind-pe.h has

  union unaligned
    {
      void *ptr;
      unsigned u2 __attribute__ ((mode (HI)));
      unsigned u4 __attribute__ ((mode (SI)));
      unsigned u8 __attribute__ ((mode (DI)));
      signed s2 __attribute__ ((mode (HI)));
      signed s4 __attribute__ ((mode (SI)));
      signed s8 __attribute__ ((mode (DI)));
    } __attribute__((__packed__));
  _Unwind_Internal_Ptr result;

and GCC warns:

gcc/libgcc/unwind-pe.h:210:37: warning: taking address of packed member of 'union unaligned' may result in an unaligned pointer value [-Waddress-of-packed-member]
    result = (_Unwind_Internal_Ptr) u->ptr;
                                    ^
we need to add GCC pragma to ignore -Waddress-of-packed-member.

gcc/

	PR c/51628
	* doc/invoke.texi: Document -Wno-address-of-packed-member.

gcc/c-family/

	PR c/51628
	* c-common.h (warn_for_address_or_pointer_of_packed_member): New.
	* c-warn.c (check_alignment_of_packed_member): New function.
	(check_address_of_packed_member): Likewise.
	(check_and_warn_address_of_packed_member): Likewise.
	(warn_for_address_or_pointer_of_packed_member): Likewise.
	* c.opt: Add -Wno-address-of-packed-member.

gcc/c/

	PR c/51628
	* c-typeck.c (convert_for_assignment): Call
	warn_for_address_or_pointer_of_packed_member.

gcc/cp/

	PR c/51628
	* call.c (convert_for_arg_passing): Call
	warn_for_address_or_pointer_of_packed_member.
	* typeck.c (convert_for_assignment): Likewise.

gcc/testsuite/

	PR c/51628
	* c-c++-common/pr51628-1.c: New test.
	* c-c++-common/pr51628-2.c: Likewise.
	* c-c++-common/pr51628-3.c: Likewise.
	* c-c++-common/pr51628-4.c: Likewise.
	* c-c++-common/pr51628-5.c: Likewise.
	* c-c++-common/pr51628-6.c: Likewise.
	* c-c++-common/pr51628-7.c: Likewise.
	* c-c++-common/pr51628-8.c: Likewise.
	* c-c++-common/pr51628-9.c: Likewise.
	* c-c++-common/pr51628-10.c: Likewise.
	* c-c++-common/pr51628-11.c: Likewise.
	* c-c++-common/pr51628-12.c: Likewise.
	* c-c++-common/pr51628-13.c: Likewise.
	* c-c++-common/pr51628-14.c: Likewise.
	* c-c++-common/pr51628-15.c: Likewise.
	* c-c++-common/pr51628-26.c: Likewise.
	* c-c++-common/pr51628-27.c: Likewise.
	* c-c++-common/pr51628-28.c: Likewise.
	* c-c++-common/pr51628-29.c: Likewise.
	* c-c++-common/pr51628-30.c: Likewise.
	* c-c++-common/pr51628-31.c: Likewise.
	* c-c++-common/pr51628-32.c: Likewise.
	* gcc.dg/pr51628-17.c: Likewise.
	* gcc.dg/pr51628-18.c: Likewise.
	* gcc.dg/pr51628-19.c: Likewise.
	* gcc.dg/pr51628-20.c: Likewise.
	* gcc.dg/pr51628-21.c: Likewise.
	* gcc.dg/pr51628-22.c: Likewise.
	* gcc.dg/pr51628-23.c: Likewise.
	* gcc.dg/pr51628-24.c: Likewise.
	* gcc.dg/pr51628-25.c: Likewise.
	* c-c++-common/asan/misalign-1.c: Add
	-Wno-address-of-packed-member.
	* c-c++-common/asan/misalign-2.c: Likewise.
	* c-c++-common/ubsan/align-2.c: Likewise.
	* c-c++-common/ubsan/align-4.c: Likewise.
	* c-c++-common/ubsan/align-6.c: Likewise.
	* c-c++-common/ubsan/align-7.c: Likewise.
	* c-c++-common/ubsan/align-8.c: Likewise.
	* c-c++-common/ubsan/align-10.c: Likewise.
	* g++.dg/ubsan/align-2.C: Likewise.
	* gcc.target/i386/avx512bw-vmovdqu16-2.c: Likewise.
	* gcc.target/i386/avx512f-vmovdqu32-2.c: Likewise.
	* gcc.target/i386/avx512f-vmovdqu64-2.c: Likewise.
	* gcc.target/i386/avx512vl-vmovdqu16-2.c: Likewise.
	* gcc.target/i386/avx512vl-vmovdqu32-2.c: Likewise.
	* gcc.target/i386/avx512vl-vmovdqu64-2.c: Likewise.

libgcc/

	* unwind-pe.h (read_encoded_value_with_base): Add GCC pragma
	to ignore -Waddress-of-packed-member.

From-SVN: r267313
2018-12-20 13:41:48 -08:00
Thomas Preud'homme
72e3a52923 [ARM] Optimize executable size when using softfloat fmul/dmul
Softfloat single precision and double precision floating-point
multiplication routines in libgcc share some code with the
floating-point division of their corresponding precision. As the code
is structured now, this leads to *all* division code being pulled in an
executable in softfloat mode even if only multiplication is
performed.

This patch create some new LIB1ASMFUNCS macros to also build files with
just the multiplication and shared code as weak symbols. By putting
these earlier in the static library, they can then be picked up when
only multiplication is used and they are overriden by the global
definition in the existing file containing both multiplication and
division code when division is needed.

The patch also removes changes made to the FUNC_START and ARM_FUNC_START
macros in r218124 since the intent was to put multiplication and
division code into their own section in a later patch to achieve the
same size optimization. That approach relied on specific section layout
to ensure multiplication and division were not too far from the shared
bit of code in order to the branches to be within range. Due to lack of
guarantee regarding section layout, in particular with all the
possibility of linker scripts, this approach was chosen instead. This
patch keeps the two testcases that were posted by Tony Wang on the mailing
list to implement this approach and adds a new one.

2018-12-19  Thomas Preud'homme  <thomas.preudhomme@linaro.org>

    libgcc/
    * /config/arm/lib1funcs.S (FUNC_START): Remove unused sp_section
    parameter and corresponding code.
    (ARM_FUNC_START): Likewise in both definitions.
    Also update footer comment about condition that need to match with
    gcc/config/arm/elf.h to also include libgcc/config/arm/t-arm.
    * config/arm/ieee754-df.S (muldf3): Also build it if L_arm_muldf3 is
    defined.  Weakly define it in this case.
    * config/arm/ieee754-sf.S (mulsf3): Likewise with L_arm_mulsf3.
    * config/arm/t-elf (LIB1ASMFUNCS): Build _arm_muldf3.o and
    _arm_mulsf3.o before muldiv versions if targeting Thumb-1 only. Add
    comment to keep condition in sync with the one in
    libgcc/config/arm/lib1funcs.S and gcc/config/arm/elf.h.

    gcc/
    * config/arm/elf.h: Update comment about condition that need to
    match with libgcc/config/arm/lib1funcs.S to also include
    libgcc/config/arm/t-arm.
    * doc/sourcebuild.texi (output-exists, output-exists-not): Rename
    subsubsection these directives are in to "Check for output files".
    Move scan-symbol to that section and add to it new scan-symbol-not
    directive.

2018-12-19  Tony Wang  <tony.wang@arm.com>
	    Thomas Preud'homme  <thomas.preudhomme@linaro.org>

    gcc/testsuite/
    * lib/lto.exp (lto-execute): Define output_file and testname_with_flags
    to same value as execname.
    (scan-symbol): Move and rename to ...
    * lib/gcc-dg.exp (scan-symbol-common): This.  Adapt into a
    helper function returning true or false if a symbol is present.
    (scan-symbol): New procedure.
    (scan-symbol-not): Likewise.
    * gcc.target/arm/size-optimization-ieee-1.c: New testcase.
    * gcc.target/arm/size-optimization-ieee-2.c: Likewise.
    * gcc.target/arm/size-optimization-ieee-3.c: Likewise.

From-SVN: r267282
2018-12-19 17:34:18 +00:00
Wei Xiao
5d54c79858 driver-i386.c (host_detect_local_cpu): Detect cascadelake.
gcc/ChangeLog
2018-12-18  Wei Xiao  <wei3.xiao@intel.com>

	* config/i386/driver-i386.c (host_detect_local_cpu): Detect cascadelake.
	* config/i386/i386.c (fold_builtin_cpu): Handle cascadelake.
	* doc/extend.texi: Add cascadelake.

gcc/testsuite/ChangeLog
2018-12-18  Wei Xiao  <wei3.xiao@intel.com>

	* g++.target/i386/mv16.C: Handle new march.
	* gcc.target/i386/builtin_target.c: Ditto.

libgcc/ChangeLog
2018-12-18  Wei Xiao  <wei3.xiao@intel.com>

	* config/i386/cpuinfo.c (get_intel_cpu): Handle cascadelake.
	* config/i386/cpuinfo.h: Add INTEL_COREI7_CASCADELAKE.

From-SVN: r267226
2018-12-18 03:41:44 +00:00
Rasmus Villemoes
5a2580b6ad libgcc: rs6000: tramp.S: fix placement of .cfi_endproc for __trampoline_setup
Currently, .cfi_endproc and FUNC_END(__trampoline_setup) are placed
inside the #else branch of an "#if defined (__VXWORKS__) ...", so
non-pic vxworks does not get proper CFI nor a .size directive for
__trampoline_setup. I assume there's no magic reason for that (which
would warrant a comment), so move them outside.

From-SVN: r267051
2018-12-12 10:12:36 +00:00
Paul Koning
c0c5112bcd * udivmodhi4.c (__udivmodhi4): Fix loop end check.
From-SVN: r266826
2018-12-05 09:25:11 -05:00
Alan Modra
1ea7ea181d [RS6000] libgcc cfi
There are a few places in libgcc assembly where we don't emit call
frame information for functions, potentially breaking unwinding from
asynchronous signal handlers.  This patch fixes them.  Although I
patch tramp.S there is no attempt made to provide CFI for the actual
trampoline on the stack.  Doing that would require generating CFI at
run time and both registering and deregistering it, which is probably
not worth doing since it would significantly slow down the call.

	* config/rs6000/morestack.S (__stack_split_initialize),
	(__morestack_get_guard, __morestack_set_guard),
	(__morestack_make_guard): Provide CFI covering these functions.
	* config/rs6000/tramp.S (__trampoline_setup): Likewise.

From-SVN: r266503
2018-11-27 12:29:56 +10:30
Xianmiao Qu
ff641ae112 linux-unwind.h (sc_pt_regs): Update for kernel.
2018-11-15  Xianmiao Qu  <xianmiao_qu@c-sky.com>

	libgcc/
	* config/csky/linux-unwind.h (sc_pt_regs): Update for kernel. 
	(sc_pt_regs_lr): Update for kernel.
	(sc_pt_regs_tls): Update for kernel.

From-SVN: r266200
2018-11-16 01:26:04 +00:00
Xianmiao Qu
2820937241 csky-linux-elf.h (LINUX_DYNAMIC_LINKER): Remove.
2018-11-15  Xianmiao Qu  <xianmiao_qu@c-sky.com>

	gcc/
	* config/csky/csky-linux-elf.h (LINUX_DYNAMIC_LINKER): Remove.
	(GLIBC_DYNAMIC_LINKER): Define.
	(LINUX_TARGET_LINK_SPEC): Update the dynamic linker's name.

	libgcc/
	* config/csky/linux-unwind.h: Fix coding style.

From-SVN: r266172
2018-11-15 06:01:09 +00:00
Xianmiao Qu
b2a71af6e2 linux-unwind.h (_sig_ucontext_t): Remove.
2018-11-13  Xianmiao Qu  <xianmiao_qu@c-sky.com>

	libgcc/
	* config/csky/linux-unwind.h (_sig_ucontext_t): Remove.
	(csky_fallback_frame_state): Modify the check of the 
	instructions to adapt to changes in the kernel

From-SVN: r266060
2018-11-13 09:12:36 +00:00
Stafford Horne
d929e137f8 or1k: libgcc: initial support for openrisc
libgcc/ChangeLog:

2018-11-09  Stafford Horne  <shorne@gmail.com>
	    Richard Henderson  <rth@twiddle.net>

	* config.host: Add OpenRISC support.
	* config/or1k/*: New.


Co-Authored-By: Richard Henderson <rth@twiddle.net>

From-SVN: r265961
2018-11-09 12:09:15 +00:00
Kito Cheng
222cfefa71 Update soft-fp from glibc.
This patch is updating all soft-fp from glibc, most changes are
copyright years update, and changes other than years update are list
bellow, this patch has been tested with riscv32-elf(rv32imac),
riscv64-elf(rv64imac) and nds32le-elf(v3), didn't introduce new test
fail:

soft-fp/op-4.h
  - soft-fp: Use temporary variable in FP_FRAC_SUB_3/FP_FRAC_SUB_4
    - ff48ea6787526d7e669af93ce2681b911d39675c
soft-fp/op-8.h
  - soft-fp: Add implementation for 128 bit self-contained
    - af1d5782c1e3a635fdd13d6688be64de7759857c
soft-fp/op-common.h
- Add narrowing multiply functions.
   - 69a01461ee1417578d2ba20aac935828b50f1118

soft-fp/extended.h
soft-fp/half.h
soft-fp/single.h
soft-fp/double.h
soft-fp/quad.h
- Do not use packed structures in soft-fp.
  - 049375e2b5fc707436fd5d80337c253beededb2d

2018-11-08  Kito Cheng  <kito@andestech.com>

	* soft-fp/adddf3.c: Update from glibc.
	* soft-fp/addsf3.c: Likewise.
	* soft-fp/addtf3.c: Likewise.
	* soft-fp/divdf3.c: Likewise.
	* soft-fp/divsf3.c: Likewise.
	* soft-fp/divtf3.c: Likewise.
	* soft-fp/double.h: Likewise.
	* soft-fp/eqdf2.c: Likewise.
	* soft-fp/eqsf2.c: Likewise.
	* soft-fp/eqtf2.c: Likewise.
	* soft-fp/extenddftf2.c: Likewise.
	* soft-fp/extended.h: Likewise.
	* soft-fp/extendhftf2.c: Likewise.
	* soft-fp/extendsfdf2.c: Likewise.
	* soft-fp/extendsftf2.c: Likewise.
	* soft-fp/extendxftf2.c: Likewise.
	* soft-fp/fixdfdi.c: Likewise.
	* soft-fp/fixdfsi.c: Likewise.
	* soft-fp/fixdfti.c: Likewise.
	* soft-fp/fixhfti.c: Likewise.
	* soft-fp/fixsfdi.c: Likewise.
	* soft-fp/fixsfsi.c: Likewise.
	* soft-fp/fixsfti.c: Likewise.
	* soft-fp/fixtfdi.c: Likewise.
	* soft-fp/fixtfsi.c: Likewise.
	* soft-fp/fixtfti.c: Likewise.
	* soft-fp/fixunsdfdi.c: Likewise.
	* soft-fp/fixunsdfsi.c: Likewise.
	* soft-fp/fixunsdfti.c: Likewise.
	* soft-fp/fixunshfti.c: Likewise.
	* soft-fp/fixunssfdi.c: Likewise.
	* soft-fp/fixunssfsi.c: Likewise.
	* soft-fp/fixunssfti.c: Likewise.
	* soft-fp/fixunstfdi.c: Likewise.
	* soft-fp/fixunstfsi.c: Likewise.
	* soft-fp/fixunstfti.c: Likewise.
	* soft-fp/floatdidf.c: Likewise.
	* soft-fp/floatdisf.c: Likewise.
	* soft-fp/floatditf.c: Likewise.
	* soft-fp/floatsidf.c: Likewise.
	* soft-fp/floatsisf.c: Likewise.
	* soft-fp/floatsitf.c: Likewise.
	* soft-fp/floattidf.c: Likewise.
	* soft-fp/floattihf.c: Likewise.
	* soft-fp/floattisf.c: Likewise.
	* soft-fp/floattitf.c: Likewise.
	* soft-fp/floatundidf.c: Likewise.
	* soft-fp/floatundisf.c: Likewise.
	* soft-fp/floatunditf.c: Likewise.
	* soft-fp/floatunsidf.c: Likewise.
	* soft-fp/floatunsisf.c: Likewise.
	* soft-fp/floatunsitf.c: Likewise.
	* soft-fp/floatuntidf.c: Likewise.
	* soft-fp/floatuntihf.c: Likewise.
	* soft-fp/floatuntisf.c: Likewise.
	* soft-fp/floatuntitf.c: Likewise.
	* soft-fp/gedf2.c: Likewise.
	* soft-fp/gesf2.c: Likewise.
	* soft-fp/getf2.c: Likewise.
	* soft-fp/half.h: Likewise.
	* soft-fp/ledf2.c: Likewise.
	* soft-fp/lesf2.c: Likewise.
	* soft-fp/letf2.c: Likewise.
	* soft-fp/muldf3.c: Likewise.
	* soft-fp/mulsf3.c: Likewise.
	* soft-fp/multf3.c: Likewise.
	* soft-fp/negdf2.c: Likewise.
	* soft-fp/negsf2.c: Likewise.
	* soft-fp/negtf2.c: Likewise.
	* soft-fp/op-1.h: Likewise.
	* soft-fp/op-2.h: Likewise.
	* soft-fp/op-4.h: Likewise.
	* soft-fp/op-8.h: Likewise.
	* soft-fp/op-common.h: Likewise.
	* soft-fp/quad.h: Likewise.
	* soft-fp/single.h: Likewise.
	* soft-fp/soft-fp.h: Likewise.
	* soft-fp/subdf3.c: Likewise.
	* soft-fp/subsf3.c: Likewise.
	* soft-fp/subtf3.c: Likewise.
	* soft-fp/truncdfsf2.c: Likewise.
	* soft-fp/trunctfdf2.c: Likewise.
	* soft-fp/trunctfhf2.c: Likewise.
	* soft-fp/trunctfsf2.c: Likewise.
	* soft-fp/trunctfxf2.c: Likewise.
	* soft-fp/unorddf2.c: Likewise.
	* soft-fp/unordsf2.c: Likewise.
	* soft-fp/unordtf2.c: Likewise.

From-SVN: r265925
2018-11-08 16:26:28 +00:00
Venkataramanan Kumar
2901f42f4b Enable support for next generation AMD Zen CPU, via -march=znver2.
gcc/ChangeLog:
	* common/config/i386/i386-common.c (processor_alias_table): Add znver2 entry.
	* config.gcc (i[34567]86-*-linux* | ...): Add znver2.
	(case ${target}): Add znver2.
	* config/i386/driver-i386.c: (host_detect_local_cpu): Let
	-march=native recognize znver2 processors.
	* config/i386/i386-c.c (ix86_target_macros_internal): Add znver2.
	* config/i386/i386.c (m_znver2): New definition.
	(m_ZNVER): New definition.
	(m_AMD_MULTIPLE): Includes m_znver2.
	(processor_cost_table): Add znver2 entry.
	(processor_target_table): Add znver2 entry.
	(get_builtin_code_for_version): Set priority for
	PROCESSOR_ZNVER2.
	(processor_model): Add M_AMDFAM17H_ZNVER2.
	(arch_names_table): Ditto.
	(ix86_reassociation_width): Include znver2. 
	* config/i386/i386.h (TARGET_znver2): New definition.
	(struct ix86_size_cost): Add TARGET_ZNVER2.
	(enum processor_type): Add PROCESSOR_ZNVER2.
	* config/i386/i386.md (define_attr "cpu"): Add znver2.
	* config/i386/x86-tune-costs.h: (processor_costs) Add znver2 costs.
	* config/i386/x86-tune-sched.c: (ix86_issue_rate): Add znver2.
	(ix86_adjust_cost): Add znver2.
	* config/i386/x86-tune.def:  Replace m_ZNVER1 by m_ZNVER
	* gcc/doc/extend.texi: Add details about znver2.
	* gcc/doc/invoke.texi: Add details about znver2.

libgcc/ChangeLog
	* config/i386/cpuinfo.c: (get_amd_cpu): Add znver2.
	* config/i386/cpuinfo.h(processor_subtypes): Ditto.

From-SVN: r265775
2018-11-04 11:17:54 +00:00
Paul Koning
4310ca662a t-pdp11 (LIB2ADD): Add divmod.c.
* config/pdp11/t-pdp11 (LIB2ADD): Add divmod.c.
	(HOST_LIBGCC2_CFLAGS): Change to optimize for size.

From-SVN: r265726
2018-11-01 14:36:52 -04:00
Joseph Myers
22e0527251 Update GCC to autoconf 2.69, automake 1.15.1 (PR bootstrap/82856).
This patch updates GCC to use autoconf 2.69 and automake 1.15.1.
(That's not the latest automake version, but it's the one used by
binutils-gdb, with which consistency is desirable, and in any case
seems a useful incremental update that should make a future update to
1.16.1 easier.)

The changes are generally similar to the binutils-gdb ones, and are
copied from there where shared files and directories are involved
(there are some further changes to such shared directories, however,
which I'd expect to apply to binutils-gdb once this patch is in GCC).
Largely, obsolete AC_PREREQ calls are removed, while many
AC_LANG_SOURCE calls are added to avoid warnings from aclocal and
autoconf.  Multilib support is no longer included in core automake,
meaning that multilib.am needs copying from automake's contrib
directory into the GCC source tree.  Autoconf 2.69 has Go support, so
local copies of that support are removed.  I hope the D support will
soon be submitted to upstream autoconf so the local copy of that can
be removed in a future update.  Changes to how automake generates
runtest calls mean quotes are removed from RUNTEST definitions in five
lib*/testsuite/Makefile.am files (libatomic, libgomp, libitm,
libphobos, libvtv; some others have RUNTEST definitions without
quotes, which are still OK); libgo and libphobos also get
-Wno-override added to AM_INIT_AUTOMAKE so those overrides of RUNTEST
do not generate automake warnings.

Note that the regeneration did not include regeneration of
fixincludes/config.h.in (attempting such regeneration resulted in all
the USED_FOR_TARGET conditionals disappearing; and I don't see
anything in the fixincludes/ directory that would result in such
conditionals being generated, unlike in the gcc/ directory).  Also
note that libvtv/testsuite/other-tests/Makefile.in was not
regenerated; that directory is not listed as a subdirectory for which
Makefile.in gets regenerated by calling "automake" in libvtv/, so I'm
not sure how it's meant to be regenerated.

While I mostly fixed warnings should running aclocal / automake /
autoconf, there were various such warnings from automake in the
libgfortran, libgo, libgomp, liboffloadmic, libsanitizer, libphobos
directories that I did not fix, preferring to leave those to the
relevant subsystem maintainers.  Specifically, most of those warnings
were of the following form (example from libgfortran):

Makefile.am:48: warning: source file 'caf/single.c' is in a subdirectory,
Makefile.am:48: but option 'subdir-objects' is disabled
automake: warning: possible forward-incompatibility.
automake: At least a source file is in a subdirectory, but the 'subdir-objects'
automake: automake option hasn't been enabled.  For now, the corresponding output
automake: object file(s) will be placed in the top-level directory.  However,
automake: this behaviour will change in future Automake versions: they
will
automake: unconditionally cause object files to be placed in the same subdirectory
automake: of the corresponding sources.
automake: You are advised to start using 'subdir-objects' option throughout your
automake: project, to avoid future incompatibilities.

I think it's best for the relevant maintainers to add subdir-objects
and do any other associated Makefile.am changes needed.  In some cases
the paths in the warnings involved ../; I don't know if that adds any
extra complications to the use of subdir-objects.

I've tested this with native, cross and Canadian cross builds.  The
risk of any OS-specific issues should I hope be rather lower than if a
libtool upgrade were included (we *should* do such an upgrade at some
point, but it's more complicated - it involves identifying all our
local libtool changes to see if any aren't included in the upstream
version we update to, and reverting an upstream libtool patch that's
inappropriate for use in GCC); I think it would be better to get this
update into GCC so that people can test in different configurations
and we can fix any issues found, rather than to try to get more and
more testing done before it goes in.

top level:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* multilib.am: New file.  From automake.

	Merge from binutils-gdb:
	2018-06-19  Simon Marchi  <simon.marchi@ericsson.com>

	* libtool.m4: Use AC_LANG_SOURCE.
	* configure.ac: Remove AC_PREREQ, use AC_LANG_SOURCE.
	* ar-lib: New file.
	* test-driver: New file.
	* configure: Re-generate.

config:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* math.m4, tls.m4: Use AC_LANG_SOURCE.

	Merge from binutils-gdb:
	2018-06-19  Simon Marchi  <simon.marchi@ericsson.com>

	* override.m4 (_GCC_AUTOCONF_VERSION): Bump from 2.64 to 2.69.

fixincludes:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* configure.ac: Remove AC_PREREQ.
	* aclocal.m4, configure: Regenerate.

gcc:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* configure.ac: Remove AC_PREREQ.  Use AC_LANG_SOURCE.  Use single
	line for second argument of AC_DEFINE_UNQUOTED.
	* doc/install.texi (Tools/packages necessary for modifying GCC):
	Update to autoconf 2.69 and automake 1.15.1.
	* aclocal.m4, config.in, configure: Regenerate.

gnattools:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* configure.ac: Remove AC_PREREQ.
	* configure: Regenerate.

gotools:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* config/go.m4: Remove file.
	* Makefile.am (ACLOCAL_AMFLAGS): Do not use -I ./config.
	* configure.ac:  Remove AC_PREREQ.  Do not include config/go.m4.
	* Makefile.in, aclocal.m4, configure: Regenerate.

intl:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	Merge from binutils-gdb:
	2018-06-19  Simon Marchi  <simon.marchi@ericsson.com>

	* configure.ac: Add AC_USE_SYSTEM_EXTENSIONS, remove AC_PREREQ.
	* configure: Re-generate.
	* config.h.in: Re-generate.
	* aclocal.m4: Re-generate.

libada:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* configure.ac: Remove AC_PREREQ.
	* configure: Regenerate.

libatomic:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* Makefile.am: Include multilib.am.
	* acinclude.m4: Use AC_LANG_SOURCE.
	* configure.ac: Remove AC_PREREQ.
	* testsuite/Makefile.am (RUNTEST): Remove quotes.
	* Makefile.in, aclocal.m4, configure, testsuite/Makefile.in:
	Regenerate.

libbacktrace:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* Makefile.am: Include multilib.am.
	* configure.ac: Remove AC_PREREQ.  Use AC_LANG_SOURCE.
	* Makefile.in, aclocal.m4, config.h.in, configure: Regenerate.

libcc1:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* configure.ac: Remove AC_PREREQ.
	* Makefile.in, aclocal.m4, configure: Regenerate.

libcpp:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* configure.ac: Remove AC_PREREQ.  Use AC_LANG_SOURCE.
	* aclocal.m4, config.in, configure: Regenerate.

libdecnumber:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	Merge from binutils-gdb:
	2018-06-19  Simon Marchi  <simon.marchi@ericsson.com>

	* configure.ac: Remove AC_PREREQ.
	* configure: Re-generate.
	* aclocal.m4.

libffi:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* Makefile.am: Include multilib.am.
	(AUTOMAKE_OPTIONS): Add info-in-builddir.
	(CLEANFILES): Remove doc/libffi.info.
	* configure.ac: Remove AC_PREREQ.
	* Makefile.in, aclocal.m4, configure, fficonfig.h.in,
	include/Makefile.in, man/Makefile.in, testsuite/Makefile.in:
	Regenerate.

libgcc:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* configure.ac: Remove AC_PREREQ.  Use AC_LANG_SOURCE.
	* configure: Regenerate.

libgfortran:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* Makefile.am: Include multilib.am.
	* configure.ac: Remove AC_PREREQ.
	* Makefile.in, aclocal.m4, config.h.in, configure: Regenerate.

libgo [logically part of this change but omitted from the commit]:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* Makefile.am: Include multilib.am.
	* config/go.m4: Remove file.
	* config/libtool.m4: Use AC_LANG_SOURCE.
	* configure.ac: Remove AC_PREREQ.  Use AC_LANG_SOURCE.  Use
	-Wno-override in AM_INIT_AUTOMAKE call.
	* Makefile.in, aclocal.m4, configure, testsuite/Makefile.in:
	Regenerate.

libgomp:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* Makefile.am: Include multilib.am
	(AUTOMAKE_OPTIONS): Add info-in-builddir.
	(CLEANFILES): Remove libgomp.info.
	* configure.ac: Remove AC_PREREQ.
	* testsuite/Makefile.am (RUNTEST): Remove quotes.
	* Makefile.in, aclocal.m4, configure, testsuite/Makefile.in:
	Regenerate.

libhsail-rt:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* configure.ac: Remove AC_PREREQ.
	* Makefile.in, aclocal.m4, configure: Regenerate.

libiberty:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	Merge from binutils-gdb:
	2018-06-19  Simon Marchi  <simon.marchi@ericsson.com>

	* configure.ac: Remove AC_PREREQ.
	* configure: Re-generate.
	* config.in: Re-generate.

libitm:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* Makefile.am: Include multilib.am.
	(AUTOMAKE_OPTIONS): Add info-in-builddir.
	(CLEANFILES): Remove libitm.info.
	* configure.ac: Remove AC_PREREQ.
	* testsuite/Makefile.am (RUNTEST): Remove quotes.
	* Makefile.in, aclocal.m4, configure, testsuite/Makefile.in:
	Regenerate.

libobjc:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* configure.ac: Remove AC_PREREQ.
	* aclocal.m4, config.h.in, configure: Regenerate.

liboffloadmic:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* Makefile.am: Include multilib.am.
	* configure.ac: Remove AC_PREREQ.
	* plugin/Makefile.am: Include multilib.am.
	* plugin/configure.ac: Remove AC_PREREQ.
	* Makefile.in, aclocal.m4, configure, plugin/Makefile.in,
	plugin/aclocal.m4, plugin/configure: Regenerate.

libphobos:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* Makefile.am: Include multilib.am.
	* configure.ac: Remove AC_PREREQ.  Use -Wno-override in
	AM_INIT_AUTOMAKE call.
	* m4/autoconf.m4: Add extra argument to AC_LANG_DEFINE call.
	* m4/druntime/os.m4: Use AC_LANG_SOURCE.
	* testsuite/Makefile.am (RUNTEST): Remove quotes.
	* Makefile.in, aclocal.m4, configure, libdruntime/Makefile.in,
	src/Makefile.in, testsuite/Makefile.in: Regenerate.

libquadmath:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* Makefile.am: Include multilib.am.
	(AUTOMAKE_OPTIONS): Remove 1.8.  Add info-in-builddir.
	(all-local): Define outside conditional code.
	(CLEANFILES): Remove libquadmath.info.
	* configure.ac: Remove AC_PREREQ.
	* Makefile.in, aclocal.m4, config.h.in, configure: Regenerate.

libsanitizer:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* Makefile.am: Include multilib.am.
	* configure.ac: Remove AC_PREREQ.  Use AC_LANG_SOURCE.
	* Makefile.in, aclocal.m4, asan/Makefile.in, configure,
	interception/Makefile.in, libbacktrace/Makefile.in,
	lsan/Makefile.in, sanitizer_common/Makefile.in, tsan/Makefile.in,
	ubsan/Makefile.in: Regenerate.

libssp:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* Makefile.am: Include multilib.am.
	(AUTOMAKE_OPTIONS): Remove 1.9.5.
	* configure.ac: Remove AC_PREREQ.  Quote argument to
	AC_RUN_IFELSE.
	* Makefile.in, aclocal.m4, configure: Regenerate.

libstdc++-v3:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* Makefile.am: Include multilib.am.
	* configure.ac: Remove AC_PREREQ.
	* Makefile.in, aclocal.m4, configure, doc/Makefile.in,
	include/Makefile.in, libsupc++/Makefile.in, po/Makefile.in,
	python/Makefile.in, src/Makefile.in, src/c++11/Makefile.in,
	src/c++17/Makefile.in, src/c++98/Makefile.in,
	src/filesystem/Makefile.in, testsuite/Makefile.in: Regenerate.

libvtv:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* Makefile.am: Include multilib.am.
	* configure.ac: Remove AC_PREREQ.
	* testsuite/Makefile.am (RUNTEST): Remove quotes.
	* Makefile.in, aclocal.m4, configure, testsuite/Makefile.in:
	Regenerate.

lto-plugin:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* configure.ac: Remove AC_PREREQ.  Use AC_LANG_SOURCE.
	* Makefile.in, aclocal.m4, config.h.in, configure: Regenerate.

zlib:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* Makefile.am: Include multilib.am.

	Merge from binutils-gdb:
	2018-06-19  Simon Marchi  <simon.marchi@ericsson.com>

	* configure.ac: Modernize AC_INIT call, remove AC_PREREQ.
	* Makefile.am (AUTOMAKE_OPTIONS): Remove 1.8, cygnus, add foreign.
	* Makefile.in: Re-generate.
	* aclocal.m4: Re-generate.
	* configure: Re-generate.

From-SVN: r265695
2018-10-31 17:03:16 +00:00
Claudiu Zissulescu
8180cde0fb [ARC] Remove non standard funcions calls.
Replace all custom "library" calls with compiler known patterns.

gcc/
xxxx-xx-xx  Claudiu Zissulescu  <claziss@synopsys.com>

	* config/arc/arc.md (mulsi3): Remove call to mulsi_600_lib.
	(mulsi3_600_lib): Remove pattern.
	(umulsi3_highpart_600_lib_le): Likewise.
	(umulsi3_highpart): Remove call to umulsi3_highpart_600_lib_le.
	(umulsidi3): Remove call to umulsidi3_600_lib.
	(umulsidi3_600_lib): Remove pattern.
	(peephole2): Remove peephole using the above deprecated patterns.

testsuite/
xxxx-xx-xx  Claudiu Zissulescu  <claziss@synopsys.com>

	* gcc.target/arc/mulsi3_highpart-2.c: Update test.

libgcc/
xxxx-xx-xx  Claudiu Zissulescu  <claziss@synopsys.com>

	* config/arc/lib1funcs.S (_muldi3): New function.
	* config/arc/t-arc (LIB1ASMFUNCS): Add _muldi3.

From-SVN: r265672
2018-10-31 12:27:07 +01:00
Rasmus Villemoes
be7b071e9e libgcc: properly destroy mutexes on VxWorks
Just as one needs run-time initialization of mutexes, one needs to
destroy them properly to allow the OS to release resources associated
with the semaphore.

From-SVN: r265616
2018-10-30 08:33:04 +00:00
Martin Liska
3239d72683 Revert partially changes from r265454 (PR other/87735).
2018-10-25  Martin Liska  <mliska@suse.cz>

	PR other/87735
	* gcc.dg/tree-prof/time-profiler-1.c: Revert.
	* gcc.dg/tree-prof/time-profiler-2.c: Likewise.
	* gcc.dg/tree-prof/time-profiler-3.c: Likewise.
2018-10-25  Martin Liska  <mliska@suse.cz>

	PR other/87735
	* libgcov-profiler.c: Revert.

From-SVN: r265494
2018-10-25 15:36:12 +00:00
Martin Liska
19b5595858 Remove reduntant dumps and make tp_first_run dump more compact.
2018-10-24  Martin Liska  <mliska@suse.cz>

	* cgraph.c (cgraph_node::dump):
	Remove reduntant dumps and make tp_first_run dump more compact.
2018-10-24  Martin Liska  <mliska@suse.cz>

	* libgcov-profiler.c: Start from 1 in order to distinguish
	functions which were seen and these that were not.

From-SVN: r265454
2018-10-24 08:47:59 +00:00
Paul Koning
a9a2fddbf2 udivmodsi4.c (__udivmodsi4): Rename to conform to coding standard.
* udivmodsi4.c (__udivmodsi4): Rename to conform to coding
	standard.
	* divmod.c: Update references to __udivmodsi4.
	* udivmod.c: Ditto.
	* udivhi3.c: New file.
	* udivmodhi4.c: New file.
	* config/pdp11/t-pdp11 (LIB2ADD): Add the new files.

From-SVN: r265277
2018-10-18 14:01:15 -04:00
Rasmus Villemoes
fc8abc4660 libgcc: apply LIB2FUNCS_EXCLUDE logic to LIB2FUNCS_ST
One target file (config/c6x/t-elf) lists _printf and _gcc_bcmp in
LIB2FUNCS_EXCLUDE, but that does not have any effect, since those are
not filtered away from LIB2FUNCS_ST. Another option is to do as in
config/rl78/t-rl78, which explicitly sets LIB2FUNCS_ST

# Remove __gcc_bcmp from LIB2FUNCS_ST
LIB2FUNCS_ST = _eprintf

but honouring LIB2FUNCS_EXCLUDE also for LIB2FUNCS_ST seems more
natural.

From-SVN: r265246
2018-10-17 18:39:48 +00:00
Olivier Hainque
87f918e380 tighten the toplevel guard on ibm-ldouble.c
2018-10-12  Olivier Hainque  <hainque@adacore.com>

        * config/rs6000/ibm-ldouble.c: Augment the toplevel guard with
        defined (__FLOAT128_TYPE__) || defined (__LONG_DOUBLE_128__).

From-SVN: r265135
2018-10-12 21:25:46 +00:00
Paul Koning
be86efa7cc * config/pdp11/t-pdp11: Remove -mfloat32 switch.
From-SVN: r264939
2018-10-08 12:49:48 -04:00
Martin Liska
3edbcdbead Fix divergence in indirect profiling (PR gcov-profile/84107).
2018-10-04  Martin Liska  <mliska@suse.cz>

	PR gcov-profile/84107
	* tree-profile.c (init_ic_make_global_vars):
	Remove ic_void_ptr_var and ic_gcov_type_ptr_var.
	Come up with new ic_tuple* variables.  Emit
	__gcov_indirect_call{,_topn} variables.
	(gimple_gen_ic_profiler): Access the variable
	and emit gimple.
	(gimple_gen_ic_func_profiler): Access
	__gcov_indirect_call.callee field.
	(gimple_init_gcov_profiler): Use ptr_type_node.
	* value-prof.c (gimple_ic): Use ptr_type_node.
2018-10-04  Martin Liska  <mliska@suse.cz>

	PR gcov-profile/84107
	* libgcov-profiler.c (__gcov_indirect_call):
	Change type to indirect_call_tuple.
	(struct indirect_call_tuple): New struct.
	(__gcov_indirect_call_topn_profiler): Change type.
	(__gcov_indirect_call_profiler_v2): Use the new
	variables.
	* libgcov.h (struct indirect_call_tuple): New struct
	definition.

From-SVN: r264840
2018-10-04 12:41:14 +00:00
Uros Bizjak
af8096fc2b libgcc2.c (isnan): Use __builtin_isnan.
* libgcc2.c (isnan): Use __builtin_isnan.
	(isfinite): Use __builtin_isfinite.
	(isinf): Use __builtin_isinf.

From-SVN: r264823
2018-10-03 22:29:10 +02:00
Uros Bizjak
0a76bba487 crtprec.c (set_precision): Use fnstcw instead of fstcw.
* config/i386/crtprec.c (set_precision): Use fnstcw instead of fstcw.

From-SVN: r264649
2018-09-26 17:25:15 +02:00
Olivier Hainque
5244089f15 Leverage cacheTextUpdate for __clear_cache on VxWorks
2018-09-21  Alexandre Oliva  <oliva@adacore.com>

libgcc/
	* config/vxcache.c: New file.  Provide __clear_cache, based on
	the cacheTextUpdate VxWorks service.
	* config/t-vxworks (LIB2ADD): Add vxcache.c.
	(LIB2FUNCS_EXCLUDE): Add _clear_cache.
	* config/t-vxwoks7: Likewise.
gcc/
	* config/vxworks.h (CLEAR_INSN_CACHE): #define to 1.

From-SVN: r264479
2018-09-21 13:09:51 +00:00
Martin Liska
512cc01512 Remove arc profile histogram in non-LTO mode.
2018-09-21  Martin Liska  <mliska@suse.cz>

	* auto-profile.c (autofdo_source_profile::read): Do not
	set sum_all.
	(read_profile): Do not add working sets.
	(read_autofdo_file): Remove sum_all.
	(afdo_callsite_hot_enough_for_early_inline): Remove const
	qualifier.
	* coverage.c (struct counts_entry): Remove gcov_summary.
	(read_counts_file): Read new GCOV_TAG_OBJECT_SUMMARY,
	do not support GCOV_TAG_PROGRAM_SUMMARY.
	(get_coverage_counts): Remove summary and expected
	arguments.
	* coverage.h (get_coverage_counts): Likewise.
	* doc/gcov-dump.texi: Remove -w option.
	* gcov-dump.c (dump_working_sets): Remove.
	(main): Do not support '-w' option.
	(print_usage): Likewise.
	(tag_summary): Likewise.
	* gcov-io.c (gcov_write_summary): Do not dump
	histogram.
	(gcov_read_summary): Likewise.
	(gcov_histo_index): Remove.
	(gcov_histogram_merge): Likewise.
	(compute_working_sets): Likewise.
	* gcov-io.h (GCOV_TAG_OBJECT_SUMMARY): Mark
	it not obsolete.
	(GCOV_TAG_PROGRAM_SUMMARY): Mark it obsolete.
	(GCOV_TAG_SUMMARY_LENGTH): Adjust.
	(GCOV_HISTOGRAM_SIZE): Remove.
	(GCOV_HISTOGRAM_BITVECTOR_SIZE): Likewise.
	(struct gcov_summary): Simplify rapidly just
	to runs and sum_max fields.
	(gcov_histo_index): Remove.
	(NUM_GCOV_WORKING_SETS): Likewise.
	(compute_working_sets): Likewise.
	* gcov-tool.c (print_overlap_usage_message): Remove
	trailing empty line.
	* gcov.c (read_count_file): Read GCOV_TAG_OBJECT_SUMMARY.
	(output_lines): Remove program related line.
	* ipa-profile.c (ipa_profile): Do not consider GCOV histogram.
	* lto-cgraph.c (output_profile_summary): Do not stream GCOV
	histogram.
	(input_profile_summary): Do not read it.
	(merge_profile_summaries): And do not merge it.
	(input_symtab): Do not call removed function.
	* modulo-sched.c (sms_schedule): Do not print sum_max.
	* params.def (HOT_BB_COUNT_FRACTION): Reincarnate param that was
	removed when histogram method was invented.
	(HOT_BB_COUNT_WS_PERMILLE): Mention that it's used only in LTO
	mode.
	* postreload-gcse.c (eliminate_partially_redundant_load): Fix
	GCOV coding style.
	* predict.c (get_hot_bb_threshold): Use HOT_BB_COUNT_FRACTION
	and dump selected value.
	* profile.c (add_working_set): Remove.
	(get_working_sets): Likewise.
	(find_working_set): Likewise.
	(get_exec_counts): Do not work with working sets.
	(read_profile_edge_counts): Do not inform as sum_max is removed.
	(compute_branch_probabilities): Likewise.
	(compute_value_histograms): Remove argument for call of
	get_coverage_counts.
	* profile.h: Do not make gcov_summary const.
2018-09-21  Martin Liska  <mliska@suse.cz>

	* libgcov-driver.c (crc32_unsigned): Remove.
	(gcov_histogram_insert): Likewise.
	(gcov_compute_histogram): Likewise.
	(compute_summary): Simplify rapidly.
	(merge_one_data): Do not handle PROGRAM_SUMMARY tag.
	(merge_summary): Rapidly simplify.
	(dump_one_gcov): Ignore gcov_summary.
	(gcov_do_dump): Do not handle program summary, it's not
	used.
	* libgcov-util.c (tag_summary): Remove.
	(read_gcda_finalize): Fix coding style.
	(read_gcda_file): Initialize curr_object_summary.
	(compute_summary): Remove.
	(calculate_overlap): Remove settings of run_max.

From-SVN: r264462
2018-09-21 08:41:17 +00:00
Monk Chiang
36ff254bf6 [NDS32] Sync glibc and kernel structure, all use _rt_sigframe.
libgcc/
	* config/nds32/linux-unwind.h (struct _rt_sigframe): Use struct
	ucontext_t type instead.
	(nds32_fallback_frame_state): Remove struct _sigframe statement.

From-SVN: r264461
2018-09-21 08:39:35 +00:00
Kito Cheng
229a033dac [NDS32] Add t-nds32-glibc file.
libgcc/
	* config/nds32/t-nds32-glibc: New file.

From-SVN: r264460
2018-09-21 08:11:40 +00:00
Rainer Orth
53c6feb2b2 Use v2 map syntax in libgcc-unwind.map if Solaris ld supports it
* configure.ac (solaris_ld_v2_maps): New test.
	* configure: Regenerate.
	* Makefile.in (solaris_ld_v2_maps): New variable.
	* config/t-slibgcc-sld (libgcc-unwind.map): Emit v2 mapfile syntax
	if supported.

From-SVN: r264382
2018-09-18 07:04:15 +00:00
Martin Liska
92a285c1a7 Replace 8 spaces with a tabular in ChangeLog files.
From-SVN: r263886
2018-08-27 14:04:23 +00:00
Richard Earnshaw
ebdb6f2377 PR target/86951 arm - Handle speculation barriers on pre-armv7 CPUs
The AArch32 instruction sets prior to Armv7 do not define the ISB and
DSB instructions that are needed to form a speculation barrier.  While
I do not know of any instances of cores based on those instruction
sets being vulnerable to speculative side channel attacks it is
possible to run code built for those ISAs on more recent hardware
where they would become vulnerable.

This patch works around this by using a library call added to libgcc.
That code can then take any platform-specific actions necessary to
ensure safety.

For the moment I've only handled two cases: the library code being
built for armv7 or later anyway and running on Linux.

On Linux we can handle this by calling the kernel function that will
flush a small amount of cache.  Such a sequence ends with a ISB+DSB
sequence if running on an Armv7 or later CPU.

gcc:

	PR target/86951
	* config/arm/arm-protos.h (arm_emit_speculation_barrier): New
	prototype.
	* config/arm/arm.c (speculation_barrier_libfunc): New static
	variable.
	(arm_init_libfuncs): Initialize it.
	(arm_emit_speculation_barrier): New function.
	* config/arm/arm.md (speculation_barrier): Call
	arm_emit_speculation_barrier for architectures that do not have 
	DSB or ISB.
	(speculation_barrier_insn): Only match on Armv7 or later.

libgcc:

	PR target/86951
	* config/arm/lib1funcs.asm (speculation_barrier): New function.
	* config/arm/t-arm (LIB1ASMFUNCS): Add it to list of functions
	to build.

From-SVN: r263806
2018-08-23 09:47:34 +00:00
Iain Sandoe
88350fd97e commit missed change from r263764
From-SVN: r263766
2018-08-22 12:05:45 +00:00
Iain Sandoe
a49c064e40 Move Darwin10 unwinder fix to a crt shim.
gcc/
	* config/darwin10.h (LINK_GCC_C_SEQUENCE_SPEC): Adjust to use the
	Darwin10-specific unwinder-shim.
	* config/darwin12.h (LINK_GCC_C_SEQUENCE_SPEC): Remove.
	* config/rs6000/darwin.h (DARWIN_CRT1_SPEC, DARWIN_DYLIB1_SPEC): 
	New to cater for Darwin10 Rosetta.

libgcc/
	* config/unwind-dw2-fde-darwin.c
	(_darwin10_Unwind_FindEnclosingFunction): move from here ...
	* config/darwin10-unwind-find-enc-func.c: … to here.
	* config/t-darwin: Build Darwin10 unwinder shim crt.
	* libgcc/config.host: Add the Darwin10 unwinder shim.

From-SVN: r263765
2018-08-22 11:58:43 +00:00
Rasmus Villemoes
9a5b8df700 libgcc: add crt{begin,end} for powerpc-wrs-vxworks target
In order to allow ZCX on VxWorks, we need the frame_dummy function to do
the register_frame_info(). So make sure crtbegin.o and crtend.o are
available for use with a custom spec file.

From-SVN: r263690
2018-08-21 08:49:15 +00:00
Jojo
4cd0bc3b69 C-SKY port: libgcc
2018-08-17  Jojo  <jijie_rong@c-sky.com>
	    Huibin Wang  <huibin_wang@c-sky.com>
	    Sandra Loosemore  <sandra@codesourcery.com>
	    Chung-Lin Tang  <cltang@codesourcery.com>

	C-SKY port: libgcc

	libgcc/
	* config.host: Add C-SKY support.
	* config/csky/*: New.

Co-Authored-By: Chung-Lin Tang <cltang@codesourcery.com>
Co-Authored-By: Huibin Wang <huibin_wang@c-sky.com>
Co-Authored-By: Sandra Loosemore <sandra@codesourcery.com>

From-SVN: r263631
2018-08-17 15:08:27 -04:00
Chung-Ju Wu
a493174524 [NDS32] Implement more C ISR extension.
gcc/
	* config.gcc (nds32*): Add nds32_isr.h and nds32_init.inc in
	extra_headers.
	* common/config/nds32/nds32-common.c (nds32_handle_option): Handle
	OPT_misr_secure_ case.
	* config/nds32/nds32-isr.c: Implementation of backward compatibility.
	* config/nds32/nds32-protos.h (nds32_isr_function_critical_p): New.
	* config/nds32/nds32.c (nds32_attribute_table): Add critical and
	secure attribute.
	* config/nds32/nds32.h (nds32_isr_nested_type): Add NDS32_CRITICAL.
	(nds32_isr_info): New field security_level.
	(TARGET_ISR_VECTOR_SIZE_4_BYTE): New macro.
	* config/nds32/nds32.md (return_internal): Consider critical attribute.
	* config/nds32/nds32.opt (misr-secure): New option.
	* config/nds32/nds32_init.inc: New file.
	* config/nds32/nds32_isr.h: New file.

libgcc/
	* config/nds32/t-nds32-isr: Rearrange object dependency.
	* config/nds32/initfini.c: Add dwarf2 unwinding support.
	* config/nds32/isr-library/adj_intr_lvl.inc: Consider new extensions
	and registers usage.
	* config/nds32/isr-library/excp_isr.S: Ditto.
	* config/nds32/isr-library/intr_isr.S: Ditto.
	* config/nds32/isr-library/reset.S: Ditto.
	* config/nds32/isr-library/restore_all.inc: Ditto.
	* config/nds32/isr-library/restore_mac_regs.inc: Ditto.
	* config/nds32/isr-library/restore_partial.inc: Ditto.
	* config/nds32/isr-library/restore_usr_regs.inc: Ditto.
	* config/nds32/isr-library/save_all.inc: Ditto.
	* config/nds32/isr-library/save_mac_regs.inc: Ditto.
	* config/nds32/isr-library/save_partial.inc: Ditto.
	* config/nds32/isr-library/save_usr_regs.inc: Ditto.
	* config/nds32/isr-library/vec_vid*.S: Consider 4-byte vector size.

From-SVN: r263493
2018-08-12 07:38:40 +00:00
John David Anglin
2b1969f635 pa.md (UNSPEC_MEMORY_BARRIER): New unspec enum.
gcc
	* config/pa/pa.md (UNSPEC_MEMORY_BARRIER): New unspec enum.
	Update comment for atomic instructions.
	(atomic_storeqi, atomic_storehi, atomic_storesi, atomic_storesf,
	atomic_loaddf, atomic_loaddf_1, atomic_storedf, atomic_storedf_1):
	Remove.
	(atomic_loaddi): Revise fence expansion to only emit fence prior to
	load for __ATOMIC_SEQ_CST model.
	(atomic_loaddi_1): Remove float register target.
	(atomic_storedi): Handle CONST_INT values.
	(atomic_storedi_1): Remove float register source.  Add special case
	for zero value.
	(memory_barrier): New expander and insn.

	libgcc
	* config/pa/linux-atomic.c: Update comment.
	(FETCH_AND_OP_2, OP_AND_FETCH_2, FETCH_AND_OP_WORD, OP_AND_FETCH_WORD,
	COMPARE_AND_SWAP_2, __sync_val_compare_and_swap_4,
	SYNC_LOCK_TEST_AND_SET_2, __sync_lock_test_and_set_4): Use
	__ATOMIC_RELAXED for atomic loads.
	(SYNC_LOCK_RELEASE_1): New define.  Use __sync_synchronize() and
	unordered store to release lock.
	(__sync_lock_release_8): Likewise.
	(SYNC_LOCK_RELEASE_2): Remove define.

From-SVN: r263488
2018-08-11 21:37:55 +00:00
Nicolas Pitre
89fff9cc2b arm - correctly handle denormal results during softfp subtraction
2018-08-02  Nicolas Pitre <nico@fluxnic.net>

	PR libgcc/86512
	* config/arm/ieee754-df.S (adddf3): Don't shortcut denormal handling
	when exponent goes negative. Update my email address.
	* config/arm/ieee754-sf.S (addsf3): Likewise.

From-SVN: r263267
2018-08-02 16:50:07 +00:00
Martin Liska
fd2e1dcd25 __gcov_indirect_call_callee can't be null in __gcov_indirect_call_profiler_v2.
2018-08-01  Martin Liska  <mliska@suse.cz>

	* libgcov-profiler.c (__gcov_indirect_call_profiler_v2): Do not
        check that  __gcov_indirect_call_callee is non-null.

From-SVN: r263202
2018-08-01 10:22:18 +00:00
Christophe Lyon
b74159752d [ARM] libgcc: Fix comment for code working on architectures >= 4.
2018-07-30  Christophe Lyon  <christophe.lyon@linaro.org>

	* config/arm/ieee754-df.S: Fix comment for code working on
	architectures >= 4.
	* config/arm/ieee754-sf.S: Likewise.

From-SVN: r263066
2018-07-30 14:51:42 +02:00
H.J. Lu
b72e71a39c i386: Remove _Unwind_Frames_Increment
CET kernel has been changed to place a restore token on shadow stack for
signal handler to enhance security.  It is usually transparent to user
programs since kernel will pop the restore token when signal handler
returns.  But when an exception is thrown from a signal handler, now
we need to remove _Unwind_Frames_Increment to pop the the restore token
from shadow stack.  Otherwise, we get

FAIL: g++.dg/torture/pr85334.C   -O0  execution test
FAIL: g++.dg/torture/pr85334.C   -O1  execution test
FAIL: g++.dg/torture/pr85334.C   -O2  execution test
FAIL: g++.dg/torture/pr85334.C   -O3 -g  execution test
FAIL: g++.dg/torture/pr85334.C   -Os  execution test
FAIL: g++.dg/torture/pr85334.C   -O2 -flto -fno-use-linker-plugin -flto-partition=none  execution test

	PR libgcc/85334
	* config/i386/shadow-stack-unwind.h (_Unwind_Frames_Increment):
	Removed.

From-SVN: r263030
2018-07-27 07:40:47 -07:00
Jeff Law
1c1d2d8ca7 Add missing '|' as wrong patch was applied.
From-SVN: r262453
2018-07-05 14:28:01 -06:00
James Clarke
1c686aa4be dfp.m4 (enable_decimal_float): Enable for x86_64*-*-gnu* to catch x86_64 kFreeBSD and Hurd.
config/
	* dfp.m4 (enable_decimal_float): Enable for x86_64*-*-gnu* to
	catch x86_64 kFreeBSD and Hurd.

gcc/
	* configure: Regenerated.

libdecnumber/
	* configure: Regenerated.

libgcc/
	* configure: Regenerated.

From-SVN: r262452
2018-07-05 13:23:29 -06:00
Rainer Orth
b61c9b997c Fix typo in libgcc/Makefile.in
* Makefile.in (install_leaf): Use enable_gcov instead of
	enable_libgcov.

From-SVN: r262195
2018-06-27 20:32:27 +00:00
Rasmus Villemoes
1765b02310 add support for --disable-gcov
For some targets (in my case VxWorks 5.5), libgcov does not compile due
to missing functions and macros such as getpid() and F_OK.

Incidentally, gcc/Makefile.in already contains comments such as

# Install gcov if it was compiled.

but there is no logic in place to actually allow gcov to not be
compiled.

So add an option for disabling build and install of libgcov and the
related host tools.

From-SVN: r262180
2018-06-27 10:04:25 +00:00
Christophe Lyon
9b2e34ef6d [ARM] Use __ARM_ARCH and __ARM_FEATURE_LDREX instead of __ARM_ARCH__
2018-06-21  Christophe Lyon  <christophe.lyon@linaro.org>

	libatomic/
	* config/arm/arm-config.h (__ARM_ARCH__): Remove definitions, use
	__ARM_ARCH instead. Use __ARM_FEATURE_LDREX to define HAVE_STREX
	and HAVE_STREXBHD

	libgcc/
	* config/arm/lib1funcs.S (__ARM_ARCH__): Remove definitions, use
	__ARM_ARCH and __ARM_FEATURE_CLZ instead.
	(HAVE_ARM_CLZ): Remove definition, use __ARM_FEATURE_CLZ instead.
	* config/arm/ieee754-df.S: Use __ARM_FEATURE_CLZ instead of
	__ARM_ARCH__.
	* config/arm/ieee754-sf.S: Likewise.
	* config/arm/libunwind.S: Use __ARM_ARCH instead of __ARM_ARCH__.

From-SVN: r261841
2018-06-21 13:05:36 +02:00
Christophe Lyon
d1b0dd54ab [ARM] libgcc: Remove unsupported code for __ARM_ARCH__ < 4
2018-06-21  Christophe Lyon  <christophe.lyon@linaro.org>

	libgcc/
	* config/arm/ieee754-df.S: Remove code for __ARM_ARCH__ < 4, no
	longer supported.
	* config/arm/ieee754-sf.S: Likewise.

From-SVN: r261840
2018-06-21 13:01:05 +02:00
Than McIntosh
1f3fa52553 re PR libgcc/86213 (-fsplit-stack runtime may clobber SSE input param reg)
libgcc/:
	PR libgcc/86213
	* generic-morestack.c (allocate_segment): Move calls to getenv and
	getpagesize to __morestack_load_mmap.
	(__morestack_load_mmap) Initialize static_pagesize and
	use_guard_page here so as to avoid clobbering SSE regs during a
	__morestack call.
gcc/testsuite/:
	* gcc.dg/split-8.c: New.

From-SVN: r261823
2018-06-20 21:11:23 +00:00
Michael Meissner
6a8886e45f re PR target/85358 (PowerPC: Using -mabi=ieeelongdouble -mcpu=power9 breaks __ibm128)
[gcc]
2018-06-18  Michael Meissner  <meissner@linux.ibm.com>

	PR target/85358
	* config/rs6000/rs6000-modes.def (toplevel): Rework the 128-bit
	floating point modes, so that IFmode is numerically greater than
	TFmode, which is greater than KFmode using FRACTIONAL_FLOAT_MODE
	to declare the ordering.  This prevents IFmode from being
	converted to TFmode when long double is IEEE 128-bit on an ISA 3.0
	machine.  Include rs6000-modes.h to share the fractional values
	between genmodes* and the rest of the compiler.
	(IFmode): Likewise.
	(KFmode): Likewise.
	(TFmode): Likewise.
	* config/rs6000/rs6000-modes.h: New file.
	* config/rs6000/rs6000.c (rs6000_debug_reg_global): Change the
	meaning of rs6000_long_double_size so that 126..128 selects an
	appropriate 128-bit floating point type.
	(rs6000_option_override_internal): Likewise.
	* config/rs6000/rs6000.h (toplevel): Include rs6000-modes.h.
	(TARGET_LONG_DOUBLE_128): Change the meaning of
	rs6000_long_double_size so that 126..128 selects an appropriate
	128-bit floating point type.
	(LONG_DOUBLE_TYPE_SIZE): Update comment.
	* config/rs6000/rs6000.md (trunciftf2): Correct the modes of the
	source and destination to match the standard usage.
	(truncifkf2): Likewise.
	(copysign<mode>3, IEEE iterator): Rework copysign of float128 on
	ISA 2.07 to use an explicit clobber, instead of passing in a
	temporary.
	(copysign<mode>3_soft): Likewise.

[libgcc]
2018-06-18  Michael Meissner  <meissner@linux.ibm.com>

	* config/rs6000/t-float128 (FP128_CFLAGS_SW): Compile float128
	support modules with -mno-gnu-attribute.
	* config/rs6000/t-float128-hw (FP128_CFLAGS_HW): Likewise.

From-SVN: r261712
2018-06-18 19:10:08 +00:00
Olivier Hainque
fb9970973a t-vxworks (LIBGCC_INCLUDES): Add -I$(MULTIBUILDTOP)../../gcc/include.
2018-06-07  Olivier Hainque  <hainque@adacore.com>

        * config/t-vxworks (LIBGCC_INCLUDES): Add
        -I$(MULTIBUILDTOP)../../gcc/include.
        * config/t-vxworks7: Likewise. Reformat a bit to match
        the t-vxworks layout.

From-SVN: r261273
2018-06-07 13:31:24 +00:00
Olga Makhotina
a548a5a1d6 config.gcc: Support "tremont".
2018-06-07  Olga Makhotina  <olga.makhotina@intel.com>

gcc/

        * config.gcc: Support "tremont".
        * config/i386/driver-i386.c (host_detect_local_cpu): Detect "tremont".
        * config/i386/i386-c.c (ix86_target_macros_internal): Handle
        PROCESSOR_TREMONT.
        * config/i386/i386.c (m_TREMONT): Define.
        (processor_target_table): Add "tremont".
        (PTA_TREMONT): Define.
        (ix86_lea_outperforms): Add TARGET_TREMONT.
        (get_builtin_code_for_version): Handle PROCESSOR_TREMONT.
        (fold_builtin_cpu): Add M_INTEL_TREMONT, replace M_INTEL_GOLDMONT
        and M_INTEL_GOLDMONT_PLUS.
        (fold_builtin_cpu): Add "tremont".
        (ix86_add_stmt_cost): Add TARGET_TREMONT.
        (ix86_option_override_internal): Add "tremont".
        * config/i386/i386.h (processor_costs): Define TARGET_TREMONT.
        (processor_type): Add PROCESSOR_TREMONT.
        * config/i386/x86-tune.def: Add m_TREMONT.
        * doc/invoke.texi: Add tremont as x86 -march=/-mtune= CPU type.

gcc/testsuite/

        * gcc.target/i386/funcspec-56.inc: Test arch=tremont.

libgcc/

        * config/i386/cpuinfo.h (processor_types): Add INTEL_TREMONT.

From-SVN: r261270
2018-06-07 13:07:05 +02:00
Martin Liska
244aebfd6c Fix compilation of libgcov with GCOV_LOCKED=0.
2018-06-07  Martin Liska  <mliska@suse.cz>

	* libgcov-driver.c: Rename cs_all to all and assign it from
        all_prg.

From-SVN: r261261
2018-06-07 04:23:16 +00:00
Martin Liska
6c086e8c75 Fix libgcov-driver-system bootstrap failure (PR bootstrap/86057).
2018-06-07  Martin Liska  <mliska@suse.cz>

        PR bootstrap/86057
	* libgcov-driver-system.c (replace_filename_variables): Use
        memcpy instead of mempcpy.
	(allocate_filename_struct): Do not allocate filename, allocate
        prefix and set it.
	(gcov_exit_open_gcda_file): Allocate memory for gf->filename
        here and properly copy content into it.
	* libgcov-driver.c (struct gcov_filename): Remove max_length
        field, change prefix from size_t into char *.
	(compute_summary): Do not calculate longest filename.
	(gcov_do_dump): Release memory of gf.filename after each file.
	* libgcov-util.c (compute_summary): Use new signature of
        compute_summary.
	(calculate_overlap): Likewise.

From-SVN: r261260
2018-06-07 04:21:35 +00:00
Martin Liska
97a53d1d04 Support variables in expansion of -fprofile-generate option (PR gcov-profile/47618).
2018-06-05  Martin Liska  <mliska@suse.cz>

	PR gcov-profile/47618
	* doc/invoke.texi: Document how -fprofile-dir format
        is extended.
2018-06-05  Martin Liska  <mliska@suse.cz>

	PR gcov-profile/47618
	* libgcov-driver-system.c (replace_filename_variables): New
        function.
	(gcov_exit_open_gcda_file): Use it.

From-SVN: r261199
2018-06-05 12:10:22 +00:00
Martin Liska
7f3577f528 Simplify gcov_histogram as it's used only for ARCS counters.
2018-06-05  Martin Liska  <mliska@suse.cz>

	* auto-profile.c (read_autofdo_file): Do not use
	gcov_ctr_summary struct.
	(afdo_callsite_hot_enough_for_early_inline): Likewise.
	* coverage.c (struct counts_entry): Likewise.
	(read_counts_file): Read just single summary entry.
	(get_coverage_counts): Use gcov_summary struct.
	* coverage.h (get_coverage_counts): Likewise.
	* gcov-dump.c (dump_working_sets): Likewise.
	(tag_summary): Dump just single summary.
	* gcov-io.c (gcov_write_summary): Write just histogram
	summary.
	(gcov_read_summary): Read just single summary.
	(compute_working_sets): Use gcov_summary struct.
	* gcov-io.h (GCOV_TAG_SUMMARY_LENGTH): Remove usage
	of GCOV_COUNTERS_SUMMABLE.
	(GCOV_COUNTERS_SUMMABLE): Remove.
	(GCOV_FIRST_VALUE_COUNTER): Replace with
	GCOV_COUNTER_V_INTERVAL.
	(struct gcov_ctr_summary): Remove.
	(struct gcov_summary): Directly use fields of former
	gcov_ctr_summary.
	(compute_working_sets): Use gcov_summary struct.
	* gcov.c (read_count_file): Do not use ctrs fields.
	* lto-cgraph.c (merge_profile_summaries): Use gcov_summary
	struct.
	* lto-streamer.h (struct GTY): Make profile_info gcov_summary
	struct.
	* profile.c: Likewise.
	* profile.h: Likewise.
2018-06-05  Martin Liska  <mliska@suse.cz>

	* libgcov-driver.c (gcov_compute_histogram): Remove usage
	of gcov_ctr_summary.
	(compute_summary): Do it just for a single summary.
	(merge_one_data): Likewise.
	(merge_summary): Simplify as we read just single summary.
	(dump_one_gcov): Pass proper argument.
	* libgcov-util.c (compute_one_gcov): Simplify as we have just
	single summary.
	(gcov_info_count_all_cold): Likewise.
	(calculate_overlap): Likewise.

From-SVN: r261189
2018-06-05 08:13:31 +00:00
Chung-Ju Wu
cf3cd43d5a [NDS32] Support Linux target for nds32.
gcc/
	* config.gcc (nds32*): Use nds32-linux.opt and nds32-elf.opt.
	(nds32le-*-*, nds32be-*-*): Integrate checking process.
	(nds32*-*-*): Add glibc and uclibc conditions.
	* common/config/nds32/nds32-common.c (nds32_except_unwind_info): New.
	(TARGET_EXCEPT_UNWIND_INFO): Define.
	* config/nds32/elf.h: New file.
	* config/nds32/linux.h: New file.
	* config/nds32/nds32-elf.opt: New file.
	* config/nds32/nds32-linux.opt: New file.
	* config/nds32/nds32-fp-as-gp.c
	(pass_nds32_fp_as_gp::gate): Consider TARGET_LINUX_ABI.
	* config/nds32/nds32.c (nds32_conditional_register_usage): Consider
	TARGET_LINUX_ABI.
	(nds32_asm_file_end): Ditto.
	(nds32_print_operand): Ditto.
	(nds32_insert_attributes): Ditto.
	(nds32_init_libfuncs): New function.
	(TARGET_HAVE_TLS): Define.
	(TARGET_INIT_LIBFUNCS): Define.
	* config/nds32/nds32.h (TARGET_DEFAULT_RELAX): Apply different relax
	spec content.
	(TARGET_ELF): Apply different mcmodel setting.
	(LINK_SPEC, LIB_SPEC, STARTFILE_SPEC, ENDFILE_SPEC): The content has
	been migrated into elf.h and linux.h files.
	* config/nds32/nds32.md (add_pc): Consider TARGET_LINUX_ABI.
	* config/nds32/nds32.opt (mvh): Consider TARGET_LINUX_ABI.
	(mcmodel): The content has been migrated into nds32-elf.opt and
	nds32-linux.opt files.
	* config/nds32/t-elf: New file.
	* config/nds32/t-linux: New file.

libgcc/
	* config.host (nds32*-linux*): New.
	* config/nds32/linux-atomic.c: New file.
	* config/nds32/linux-unwind.h: New file.

Co-Authored-By: Kito Cheng <kito.cheng@gmail.com>
Co-Authored-By: Monk Chiang <sh.chiang04@gmail.com>

From-SVN: r261116
2018-06-02 14:22:12 +00:00
Uros Bizjak
8b8003ed54 re PR target/85591 (__builtin_cpu_is() is not detecting bdver2 with Model = 0x02)
PR target/85591
	* config/i386/cpuinfo.c (get_amd_cpu): Return
	AMDFAM15H_BDVER2 for AMDFAM15H model 0x2.

From-SVN: r261036
2018-05-31 21:45:54 +02:00
Rasmus Villemoes
bbdf026f43 * crtstuff.c: Remove declaration of _Jv_RegisterClasses.
From-SVN: r260980
2018-05-30 17:21:48 -06:00
Martin Liska
0e8f29daae libgcov: report about a different timestamp (PR gcov-profile/85759).
2018-05-29  Martin Liska  <mliska@suse.cz>

        PR gcov-profile/85759
	* doc/gcov.texi: Document GCOV_ERROR_FILE and GCOV_EXIT_AT_ERROR
	env variables.
2018-05-29  Martin Liska  <mliska@suse.cz>

        PR gcov-profile/85759
	* libgcov-driver-system.c (gcov_error): Introduce usage of
        GCOV_EXIT_AT_ERROR env. variable.
	* libgcov-driver.c (merge_one_data): Print error that we
        overwrite a gcov file with a different timestamp.

From-SVN: r260895
2018-05-29 12:11:21 +00:00
Kalamatee
54fd159056 lb1sf68.S (Laddsf$nf): Fix sign bit handling in path to Lf$finfty.
2018-05-23  Kalamatee  <kalamatee@gmail.com>

	* config/m68k/lb1sf68.S (Laddsf$nf): Fix sign bit handling in
	path to Lf$finfty.

From-SVN: r260626
2018-05-23 16:29:01 -06:00
Kito Cheng
09baee1ab1 RISC-V: Add RV32E support.
Kito Cheng <kito.cheng@gmail.com>
	Monk Chiang  <sh.chiang04@gmail.com>

	gcc/
	* common/config/riscv/riscv-common.c (riscv_parse_arch_string):
	Add support to parse rv32e*.  Clear MASK_RVE for rv32i and rv64i.
	* config.gcc (riscv*-*-*): Add support for rv32e* and ilp32e.
	* config/riscv/riscv-c.c (riscv_cpu_cpp_builtins): Define
	__riscv_32e when TARGET_RVE.  Handle ABI_ILP32E as soft-float ABI.
	* config/riscv/riscv-opts.h (riscv_abi_type): Add ABI_ILP32E.
	* config/riscv/riscv.c (riscv_compute_frame_info): When TARGET_RVE,
	compute save_libcall_adjustment properly.
	(riscv_option_override): Call error if TARGET_RVE and not ABI_ILP32E.
	(riscv_conditional_register_usage): Handle TARGET_RVE and ABI_ILP32E.
	* config/riscv/riscv.h (UNITS_PER_FP_ARG): Handle ABI_ILP32E.
	(STACK_BOUNDARY, ABI_STACK_BOUNDARY): Handle TARGET_RVE.
	(GP_REG_LAST, MAX_ARGS_IN_REGISTERS): Likewise.
	(ABI_SPEC): Handle mabi=ilp32e.
	* config/riscv/riscv.opt (abi_type): Add ABI_ILP32E.
	(RVE): Add RVE mask.
	* doc/invoke.texi (RISC-V options) <-mabi>: Add ilp32e info.
	<-march>: Add rv32e as an example.

	gcc/testsuite/
	* gcc.dg/stack-usage-1.c: Add support for rv32e.

	libgcc/
	* config/riscv/save-restore.S: Add support for rv32e.

Co-Authored-By: Jim Wilson <jimw@sifive.com>
Co-Authored-By: Monk Chiang <sh.chiang04@gmail.com>

From-SVN: r260384
2018-05-18 15:53:55 -07:00
Kyrylo Tkachov
c3f808d3f8 [arm][1/2] Remove support for deprecated -march=armv5 and armv5e
The -march=armv5 and armv5e options have been deprecated in GCC 7 [1].
This patch removes support for them.
It's mostly mechanical stuff. The functionality that was previously
gated on arm_arch5 is now gated on arm_arch5t and the functionality
that was gated on arm_arch5e is now gated on arm_arch5te.

A path in TARGET_OS_CPP_BUILTINS for VxWorks is now unreachable and
therefore is deleted.

References to armv5 and armv5e are deleted/updated throughout the
source tree and testsuite.

Bootstrapped and tested on arm-none-linux-gnueabihf.
Also built a cc1 for arm-wrs-vxworks as a sanity check.

        * config/arm/arm-cpus.in (armv5, armv5e): Delete features.
        (armv5t, armv5te): New features.
        (ARMv5, ARMv5e): Delete fgroups.
        (ARMv5t, ARMv5te): Adjust for above changes.
        (ARMv6m): Likewise.
        (armv5, armv5e): Delete arches.
        * config/arm/arm.md (*call_reg_armv5): Use arm_arch5t instead of
        arm_arch5.
        (*call_reg_arm): Likewise.
        (*call_value_reg_armv5): Likewise.
        (*call_value_reg_arm): Likewise.
        (*call_symbol): Likewise.
        (*call_value_symbol): Likewise.
        (*sibcall_insn): Likewise.
        (*sibcall_value_insn): Likewise.
        (clzsi2): Likewise.
        (prefetch): Likewise.
        (define_split and define_peephole2 dependent on arm_arch5):
        Likewise.
        * config/arm/arm.h (TARGET_LDRD): Use arm_arch5te instead of
        arm_arch5e.
        (TARGET_ARM_QBIT): Likewise.
        (TARGET_DSP_MULTIPLY): Likewise.
        (enum base_architecture): Delete BASE_ARCH_5, BASE_ARCH_5E.
        (arm_arch5, arm_arch5e): Delete.
        (arm_arch5t, arm_arch5te): Declare.
        * config/arm/arm.c (arm_arch5, arm_arch5e): Delete.
        (arm_arch5t): Declare.
        (arm_option_reconfigure_globals): Update for the above.
        (arm_options_perform_arch_sanity_checks): Update comment, replace
        use of arm_arch5 with arm_arch5t.
        (use_return_insn): Likewise.
        (arm_emit_call_insn): Likewise.
        (output_return_instruction): Likewise.
        (arm_final_prescan_insn): Likewise.
        (arm_coproc_builtin_available): Likewise.
        * config/arm/arm-c.c (arm_cpu_builtins): Replace arm_arch5 and
        arm_arch5e with arm_arch5t and arm_arch5te.
        * config/arm/arm-protos.h (arm_arch5, arm_arch5e): Delete.
        (arm_arch5t, arm_arch5te): Declare.
        * config/arm/arm-tables.opt: Regenerate.
        * config/arm/t-arm-elf: Remove references to armv5, armv5e.
        * config/arm/t-multilib: Likewise.
        * config/arm/thumb1.md (*call_reg_thumb1_v5): Check arm_arch5t
        instead of arm_arch5.
        (*call_reg_thumb1): Likewise.
        (*call_value_reg_thumb1_v5): Likewise.
        (*call_value_reg_thumb1): Likewise.
        * config/arm/vxworks.h (TARGET_OS_CPP_BUILTINS): Remove now
        unreachable path.
        * doc/invoke.texi (ARM Options): Remove references to armv5, armv5e.

        * gcc.target/arm/pr40887.c: Update comment.
        * lib/target-supports.exp: Don't generate effective target checks
        and related helpers for armv5.  Update comment.
        * gcc.target/arm/armv5_thumb_isa.c: Delete.
        * gcc.target/arm/di-longlong64-sync-withhelpers.c: Update effective
        target check and options.

        * config/arm/libunwind.S: Update comment relating to armv5.

From-SVN: r260362
2018-05-18 13:08:16 +00:00
Jerome Lambourg
fcf4f8311e arm_cmse.h (cmse_nsfptr_create, [...]): Remove #include <stdint.h>.
2018-05-17  Jerome Lambourg  <lambourg@adacore.com>

	gcc/
	* config/arm/arm_cmse.h (cmse_nsfptr_create, cmse_is_nsfptr): Remove
	#include <stdint.h>.  Replace intptr_t with __INTPTR_TYPE__.

	libgcc/
	* config/arm/cmse.c (cmse_check_address_range): Replace
	UINTPTR_MAX with __UINTPTR_MAX__ and uintptr_t with __UINTPTR_TYPE__.

From-SVN: r260330
2018-05-17 16:36:36 +00:00
Olga Makhotina
74b2bb19f3 config.gcc: Support "goldmont-plus".
2018-05-17  Olga Makhotina  <olga.makhotina@intel.com>

gcc/

	* config.gcc: Support "goldmont-plus".
	* config/i386/driver-i386.c (host_detect_local_cpu): Detect
	"goldmont-plus".
	* config/i386/i386-c.c (ix86_target_macros_internal): Handle
	PROCESSOR_GOLDMONT_PLUS.
	* config/i386/i386.c (m_GOLDMONT_PLUS): Define.
	(processor_target_table): Add "goldmont-plus".
	(PTA_GOLDMONT_PLUS): Define.
	(ix86_lea_outperforms): Add TARGET_GOLDMONT_PLUS.
	(get_builtin_code_for_version): Handle PROCESSOR_GOLDMONT_PLUS.
	(fold_builtin_cpu): Add M_INTEL_GOLDMONT_PLUS.
	(fold_builtin_cpu): Add "goldmont-plus".
	(ix86_add_stmt_cost): Add TARGET_GOLDMONT_PLUS.
	(ix86_option_override_internal): Add "goldmont-plus".
	* config/i386/i386.h (processor_costs): Define TARGET_GOLDMONT_PLUS.
	(processor_type): Add PROCESSOR_GOLDMONT_PLUS.
	* config/i386/x86-tune.def: Add m_GOLDMONT_PLUS.
	* doc/invoke.texi: Add goldmont-plus as x86 -march=/-mtune= CPU type.

libgcc/

	* config/i386/cpuinfo.h (processor_types): Add INTEL_GOLDMONT_PLUS.
	* config/i386/cpuinfo.c (get_intel_cpu): Detect Goldmont Plus.

gcc/testsuite/

	* gcc.target/i386/builtin_target.c: Test goldmont-plus.
	* gcc.target/i386/funcspec-56.inc: Test arch=goldmont-plus.

From-SVN: r260307
2018-05-17 10:13:23 +02:00
Olga Makhotina
50e461dfe3 config.gcc: Support "goldmont".
2018-05-08  Olga Makhotina  <olga.makhotina@intel.com>

gcc/

	* config.gcc: Support "goldmont".
	* config/i386/driver-i386.c (host_detect_local_cpu): Detect "goldmont".
	* config/i386/i386-c.c (ix86_target_macros_internal): Handle
	PROCESSOR_GOLDMONT.
	* config/i386/i386.c (m_GOLDMONT): Define.
	(processor_target_table): Add "goldmont".
	(PTA_GOLDMONT): Define.
	(ix86_lea_outperforms): Add TARGET_GOLDMONT.
	(get_builtin_code_for_version): Handle PROCESSOR_GOLDMONT.
	(fold_builtin_cpu): Add M_INTEL_GOLDMONT.
	(fold_builtin_cpu): Add "goldmont".
	(ix86_add_stmt_cost): Add TARGET_GOLDMONT.
	(ix86_option_override_internal): Add "goldmont".
	* config/i386/i386.h (processor_costs): Define TARGET_GOLDMONT.
	(processor_type): Add PROCESSOR_GOLDMONT.
	* config/i386/i386.md: Add CPU "glm".
	* config/i386/glm.md: New file.
	* config/i386/x86-tune.def: Add m_GOLDMONT.
	* doc/invoke.texi: Add goldmont as x86 -march=/-mtune= CPU type.

libgcc/
	* config/i386/cpuinfo.h (processor_types): Add INTEL_GOLDMONT.
	* config/i386/cpuinfo.c (get_intel_cpu): Detect Goldmont.

gcc/testsuite/

	* gcc.target/i386/builtin_target.c: Test goldmont.
	* gcc.target/i386/funcspec-56.inc: Tests for arch=goldmont and
	arch=silvermont.

From-SVN: r260042
2018-05-08 14:23:08 +02:00
Amaan Cheval
e5f1cdb1b0 config.host (x86_64-*-rtems*): Build crti.o and crtn.o.
2018-05-07  Amaan Cheval  <amaan.cheval@gmail.com>

	* config.host (x86_64-*-rtems*): Build crti.o and crtn.o.

From-SVN: r260007
2018-05-07 16:32:09 +00:00
Andreas Tobler
8f479d7a35 re PR libgcc/84292 (__sync_add_and_fetch returns the old value instead of the new value)
2018-04-27  Andreas Tobler  <andreast@gcc.gnu.org>
	    Maryse Levavasseur <maryse.levavasseur@stormshield.eu>

	PR libgcc/84292
	* config/arm/freebsd-atomic.c (SYNC_OP_AND_FETCH_N): Fix the
	op_and_fetch to return the right result.

Co-Authored-By: Maryse Levavasseur <maryse.levavasseur@stormshield.eu>

From-SVN: r259722
2018-04-27 21:14:05 +02:00
Alan Modra
ae0432915e PR85532, crtend.o built without --enable-initfini-array has bad .eh_frame
PR libgcc/85532
	* config/rs6000/t-crtstuff (CRTSTUFF_T_CFLAGS): Add
	-fno-asynchronous-unwind-tables.

From-SVN: r259702
2018-04-27 18:36:39 +09:30
Chung-Ju Wu
ba169b7424 [NDS32] Fix incorrect settings in sfp-machine.h and t-nds32-newlib for hard fp.
libgcc/
	* config/nds32/sfp-machine.h: Fix settings for NDS32_ABI_2FP_PLUS.
	* config/nds32/t-nds32-newlib (HOST_LIBGCC2_CFLAGS): Use -fwrapv.

From-SVN: r259645
2018-04-25 12:08:14 +00:00
H.J. Lu
ffc2fc06e3 x86: Update __CET__ check
__CET__ has been changed by revision 259522:

commit d59cfa9a4064339cf2bd2da828c4c133f13e57f0
Author: hjl <hjl@138bc75d-0d04-0410-961f-82ee72b054a4>
Date:   Fri Apr 20 13:30:13 2018 +0000

    Define __CET__ for -fcf-protection and remove -mibt

to

    (__CET__ & 1) != 0: -fcf-protection=branch or -fcf-protection=full
    (__CET__ & 2) != 0: -fcf-protection=return or -fcf-protection=full

We should check (__CET__ & 2) != 0 for shadow stack.

libgcc/

	* config/i386/linux-unwind.h: Add (__CET__ & 2) != 0 check
	when including "config/i386/shadow-stack-unwind.h".

libitm/

	* config/x86/sjlj.S (_ITM_beginTransaction): Add
	(__CET__ & 2) != 0 check for shadow stack.
	(GTM_longjmp): Likewise.

From-SVN: r259621
2018-04-24 15:15:51 -07:00
H.J. Lu
7b47ecf2f7 Regenerate configure of target libraries
* configure: Regenerated.

From-SVN: r259610
2018-04-24 09:45:26 -07:00
Michael Meissner
661eb8f9e5 re PR target/85456 (PowerPC: Using -mabi=ieeelongdouble calls wrong function for __builtin_powi.)
[libgcc]
2018-04-20  Michael Meissner  <meissner@linux.ibm.com>

	PR target/85456
	* config/rs6000/_powikf2.c: New file.  Add support for the
	__builtin_powil function when long double is IEEE 128-bit floating
	point.
	* config/rs6000/float128-ifunc.c (__powikf2_resolve): Add
	__powikf2 support.
	(__powikf2): Likewise.
	* config/rs6000/quad-float128.h (__powikf2_sw): Likewise.
	(__powikf2_hw): Likewise.
	(__powikf2): Likewise.
	* config/rs6000/t-float128 (fp128_ppc_funcs): Likewise.
	* config/rs6000/t-float128-hw (fp128_hw_func): Likewise.
	(_powikf2-hw.c): Likewise.

[gcc]
2018-04-20  Michael Meissner  <meissner@linux.ibm.com>

	PR target/85456
	* config/rs6000/rs6000.c (init_float128_ieee): Add support to call
	__powikf2 when long double is IEEE 128-bit.

[gcc/testsuite]
2018-04-20  Michael Meissner  <meissner@linux.ibm.com>

	PR target/85456
	* gcc.target/powerpc/pr85456.c: New test.

From-SVN: r259533
2018-04-20 21:27:08 +00:00
H.J. Lu
5707be3c7d libgcc/CET: Skip signal frames when unwinding shadow stack
When -fcf-protection -mcet is used, I got

FAIL: g++.dg/eh/sighandle.C

(gdb) bt
 #0  _Unwind_RaiseException (exc=exc@entry=0x416ed0)
    at /export/gnu/import/git/sources/gcc/libgcc/unwind.inc:140
 #1  0x00007ffff7d9936b in __cxxabiv1::__cxa_throw (obj=<optimized out>,
    tinfo=0x403dd0 <typeinfo for int@@CXXABI_1.3>, dest=0x0)
    at /export/gnu/import/git/sources/gcc/libstdc++-v3/libsupc++/eh_throw.cc:90
 #2  0x0000000000401255 in sighandler (signo=11, si=0x7fffffffd6f8,
    uc=0x7fffffffd5c0)
    at /export/gnu/import/git/sources/gcc/gcc/testsuite/g++.dg/eh/sighandle.C:9
 #3  <signal handler called> <<<< Signal frame which isn't on shadow stack
 #4  dosegv ()
    at /export/gnu/import/git/sources/gcc/gcc/testsuite/g++.dg/eh/sighandle.C:14
 #5  0x00000000004012e3 in main ()
    at /export/gnu/import/git/sources/gcc/gcc/testsuite/g++.dg/eh/sighandle.C:30
(gdb) p frames
$6 = 5
(gdb)

frame count should be 4, not 5.  This patch skips signal frames when
unwinding shadow stack.

gcc/testsuite/

	PR libgcc/85334
	* g++.dg/torture/pr85334.C: New test.

libgcc/

	PR libgcc/85334
	* unwind-generic.h (_Unwind_Frames_Increment): New.
	* config/i386/shadow-stack-unwind.h (_Unwind_Frames_Increment):
	Likewise.
	* unwind.inc (_Unwind_RaiseException_Phase2): Increment frame
	count with _Unwind_Frames_Increment.
	(_Unwind_ForcedUnwind_Phase2): Likewise.

From-SVN: r259502
2018-04-19 10:05:39 -07:00
H.J. Lu
5f9ca0b8bf libgcc/CET: Add _CET_ENDBR to __stack_split_initialize
Program received signal SIGSEGV, Segmentation fault.
__stack_split_initialize ()
    at /export/gnu/import/git/sources/gcc/libgcc/config/i386/morestack.S:751
751		leaq	-16000(%rsp),%rax	# We should have at least 16K.
Missing separate debuginfos, use: dnf debuginfo-install libgcc-8.0.1-0.21.0.fc28.x86_64
(gdb) disass
Dump of assembler code for function __stack_split_initialize:
=> 0x0000000000402858 <+0>:	lea    -0x3e80(%rsp),%rax
   0x0000000000402860 <+8>:	mov    %rax,%fs:0x70
   0x0000000000402869 <+17>:	sub    $0x8,%rsp
   0x000000000040286d <+21>:	mov    %rsp,%rdi
   0x0000000000402870 <+24>:	mov    $0x3e80,%esi
   0x0000000000402875 <+29>:	callq  0x401810 <__generic_morestack_set_initial_sp>
   0x000000000040287a <+34>:	add    $0x8,%rsp
   0x000000000040287e <+38>:	retq
End of assembler dump.
(gdb)

This patch adds the missing ENDBR to __stack_split_initialize.

	PR libgcc/85379
	* config/i386/morestack.S (__stack_split_initialize): Add
	_CET_ENDBR.

From-SVN: r259497
2018-04-19 08:22:27 -07:00
Jakub Jelinek
a0e1df888d cet.m4 (GCC_CET_FLAGS): Default to --disable-cet, replace --enable-cet=default with --enable-cet=auto.
* config/cet.m4 (GCC_CET_FLAGS): Default to --disable-cet, replace
	--enable-cet=default with --enable-cet=auto.

	* doc/install.texi: Document --disable-cet being the default and
	--enable-cet=auto.

	* configure: Regenerated.

From-SVN: r259487
2018-04-19 09:45:51 +02:00
David Malcolm
001ddaa852 re PR jit/85384 (libgccjit does not work if --with-gcc-major-version is used)
PR jit/85384
	* acx.m4 (GCC_BASE_VER): Remove \$\$ from sed expression.

	* configure.ac (gcc-driver-name.h): Honor --with-gcc-major-version
	by using gcc_base_ver to generate a gcc_driver_version, and use
	it when generating GCC_DRIVER_NAME.
	* configure: Regenerate.

	* configure: Regenerate.

From-SVN: r259462
2018-04-18 11:46:58 +02:00
Jakub Jelinek
a57f99ba1c re PR target/84945 (UBSAN: gcc/config/i386/i386.c:33312:22: runtime error: shift exponent 32 is too large for 32-bit type 'int')
PR target/84945
	* config/i386/cpuinfo.c (set_feature): Wrap into do while (0) to avoid
	-Wdangling-else warnings.  Mask shift counts to avoid
	-Wshift-count-negative and -Wshift-count-overflow false positives.

From-SVN: r259398
2018-04-16 13:22:40 +02:00
Ruslan Bukin
4d47fe5a8f RISC-V: Support for FreeBSD.
gcc/
	* config.gcc (riscv*-*-freebsd*): Add RISC-V FreeBSD support.
	* config/riscv/freebsd.h: New.
	libgcc/
	* config.host (riscv*-*-freebsd*): Add RISC-V FreeBSD support.

From-SVN: r259190
2018-04-06 13:04:17 -07:00
H.J. Lu
059cc8aca7 i386: Enable AVX/AVX512 features only if supported by OSXSAVE
Enable AVX and AVX512 features only if their states are supported by
OSXSAVE.

	PR target/85100
	* config/i386/cpuinfo.c (XCR_XFEATURE_ENABLED_MASK): New.
	(XSTATE_FP): Likewise.
	(XSTATE_SSE): Likewise.
	(XSTATE_YMM): Likewise.
	(XSTATE_OPMASK): Likewise.
	(XSTATE_ZMM): Likewise.
	(XSTATE_HI_ZMM): Likewise.
	(XCR_AVX_ENABLED_MASK): Likewise.
	(XCR_AVX512F_ENABLED_MASK): Likewise.
	(get_available_features): Enable AVX and AVX512 features only
	if their states are supported by OSXSAVE.

From-SVN: r258954
2018-03-29 06:14:06 -07:00
Igor Tsimbalist
f262038551 Fix PR85025: libgcc/config/i386/shadow-stack-unwind.h is wrong.
PR target/85025
	* config/i386/shadow-stack-unwind.h (_Unwind_Frames_Extra):
	Fix a typo, tmp => 255.

From-SVN: r258763
2018-03-22 12:22:31 +01:00
Jakub Jelinek
ae6dca8c65 re PR target/84945 (UBSAN: gcc/config/i386/i386.c:33312:22: runtime error: shift exponent 32 is too large for 32-bit type 'int')
PR target/84945
	* config/i386/i386.c (fold_builtin_cpu): For features above 31
	use __cpu_features2 variable instead of __cpu_model.__cpu_features[0].
	Use 1U instead of 1.  Formatting fixes.

	* gcc.target/i386/pr84945.c: New test.

	* config/i386/cpuinfo.h (__cpu_features2): Declare.
	* config/i386/cpuinfo.c (__cpu_features2): New variable for
	ifndef SHARED only.
	(set_feature): Define.
	(get_available_features): Use set_feature macro.  Set __cpu_features2
	to the second word of features ifndef SHARED.

From-SVN: r258673
2018-03-20 09:14:42 +01:00
Julia Koval
c36b04c146 Add builtin_cpu for cannonlake and new isa features.
gcc/
	* config/i386/i386.c (F_AVX512VBMI2, F_GFNI, F_VPCLMULQDQ,
	F_AVX512VNNI, F_AVX512BITALG): New.

gcc/testsuite/
	* gcc.target/i386/builtin_target.c (check_intel_cpu_model): Add
	cannonlake.
	(check_features): Add avx512vbmi2, gfni, vpclmulqdq, avx512vnni,
	avx512bitalg.

libgcc/
	* config/i386/cpuinfo.c (get_available_features): Add
	FEATURE_AVX512VBMI2, FEATURE_GFNI, FEATURE_VPCLMULQDQ,
	FEATURE_AVX512VNNI, FEATURE_AVX512BITALG.
	* config/i386/cpuinfo.h (processor_features) Add
	FEATURE_AVX512VBMI2, FEATURE_GFNI, FEATURE_VPCLMULQDQ,
	FEATURE_AVX512VNNI, FEATURE_AVX512BITALG.

From-SVN: r258551
2018-03-15 08:52:36 +01:00
Julia Koval
79ab536427 Split-up -march=icelake on -march=icelake-server and -march=icelake-client
Split-up -march=icelake on -march=icelake-server and -march=icelake-client
gcc/
	* config.gcc (icelake-client, icelake-server): New.
	(icelake): Remove.
	* config/i386/i386.c (initial_ix86_tune_features): Extend to 64 bit.
	(initial_ix86_arch_features): Ditto.
	(PTA_SKYLAKE): Add SGX.
	(PTA_ICELAKE): Remove.
	(PTA_ICELAKE_CLIENT): New.
	(PTA_ICELAKE_SERVER): New.
	(ix86_option_override_internal): Split up icelake on icelake client and
	icelake server.
	(get_builtin_code_for_version): Ditto.
	(fold_builtin_cpu): Ditto.
	* config/i386/driver-i386.c (config/i386/driver-i386.c): Ditto.
	* config/i386/i386-c.c (ix86_target_macros_internal): Ditto
	* config/i386/i386.h (processor_type): Ditto.
	* doc/invoke.texi: Ditto.

gcc/testsuite/
	* g++.dg/ext/mv16.C: Split up icelake on icelake client and
	icelake-server.
	* gcc.target/i386/funcspec-56.inc: Ditto.

libgcc/
	* config/i386/cpuinfo.h (processor_subtypes): Split up icelake on
	icelake-client and icelake-server.

From-SVN: r258518
2018-03-14 11:26:38 +01:00
John David Anglin
66a00b11a0 fptr.c (_dl_read_access_allowed): New.
* config/pa/fptr.c (_dl_read_access_allowed): New.
	(__canonicalize_funcptr_for_compare): Use it.

From-SVN: r258310
2018-03-07 00:17:32 +00:00
Jakub Jelinek
ce579a4fe0 re PR debug/83917 (with -mcall-ms2sysv-xlogues, stepping into x86 tail-call restore stub gives bad backtrace)
PR debug/83917
	* configure.ac (AS_HIDDEN_DIRECTIVE): AC_DEFINE_UNQUOTED this to
	$asm_hidden_op if visibility ("hidden") attribute works.
	(HAVE_AS_CFI_SECTIONS): New AC_DEFINE.
	* config/i386/i386-asm.h: Don't include auto-host.h.
	(PACKAGE_VERSION, PACKAGE_NAME, PACKAGE_STRING, PACKAGE_TARNAME,
	PACKAGE_URL): Don't undefine.
	(USE_GAS_CFI_DIRECTIVES): Don't use nor define this macro, instead
	guard cfi_startproc only on ifdef __GCC_HAVE_DWARF2_CFI_ASM.
	(FN_HIDDEN): Change guard from #ifdef HAVE_GAS_HIDDEN to
	#ifdef AS_HIDDEN_DIRECTIVE, use AS_HIDDEN_DIRECTIVE macro in the
	definition instead of hardcoded .hidden.
	* config/i386/cygwin.S: Include i386-asm.h first before .cfi_sections
	directive.  Use #ifdef HAVE_AS_CFI_SECTIONS rather than
	#ifdef HAVE_GAS_CFI_SECTIONS_DIRECTIVE to guard .cfi_sections.
	(USE_GAS_CFI_DIRECTIVES): Don't define.
	* configure: Regenerated.
	* config.in: Likewise.

From-SVN: r258057
2018-02-28 09:59:15 +01:00
Jakub Jelinek
e586831971 re PR debug/83917 (with -mcall-ms2sysv-xlogues, stepping into x86 tail-call restore stub gives bad backtrace)
PR debug/83917
	* config/i386/i386-asm.h (PACKAGE_VERSION, PACKAGE_NAME,
	PACKAGE_STRING, PACKAGE_TARNAME, PACKAGE_URL): Undefine between
	inclusion of auto-target.h and auto-host.h.
	(USE_GAS_CFI_DIRECTIVES): Define if not defined already based on
	__GCC_HAVE_DWARF2_CFI_ASM.
	(cfi_startproc, cfi_endproc, cfi_adjust_cfa_offset,
	cfi_def_cfa_register, cfi_def_cfa, cfi_register, cfi_offset, cfi_push,
	cfi_pop): Define.
	* config/i386/cygwin.S: Don't include auto-host.h here, just
	define USE_GAS_CFI_DIRECTIVES to 1 or 0 and include i386-asm.h.
	(cfi_startproc, cfi_endproc, cfi_adjust_cfa_offset,
	cfi_def_cfa_register, cfi_register, cfi_push, cfi_pop): Remove.
	* config/i386/resms64fx.h: Add cfi_* directives.
	* config/i386/resms64x.h: Likewise.

From-SVN: r258010
2018-02-26 20:46:34 +01:00
Max Filippov
faef260ee8 libgcc: xtensa: fix build with -mtext-section-literals
libgcc/
2018-02-20  Max Filippov  <jcmvbkbc@gmail.com>

	* config/xtensa/ieee754-df.S (__adddf3_aux): Add
	.literal_position directive.
	* config/xtensa/ieee754-sf.S (__addsf3_aux): Likewise.

From-SVN: r257862
2018-02-20 20:55:56 +00:00
Igor Tsimbalist
14e335edc8 CET shouldn't be enabled in 32-bit run-time libraries by defualt
ENDBR32 and RDSSPD are multi-byte NOPs on x86-64 processors and
newer x86 processors, starting Pentium Pro.  They are UD on older
32-bit processors. Detect this at configure time and adjust the
default value for enable_cet. GCC will enable CET in 32-bit run-time
libraries in any case if --enable-cet is used to configure GCC.

	PR target/84148
	* config/cet.m4: Check if target support multi-byte NOPS (SSE).
	* libatomic/configure: Regenerate.
	* libbacktrace/configure: Likewise.
	* libgcc/configure: Likewise.
	* libgfortran/configure: Likewise.
	* libgomp/configure: Likewise.
	* libitm/configure: Likewise.
	* libmpx/configure: Likewise.
	* libobjc/configure: Likewise.
	* libquadmath/configure: Likewise.
	* libsanitizer/configure: Likewise.
	* libssp/configure: Likewise.
	* libstdc++-v3/configure: Likewise.
	* libvtv/configure: Likewise.

From-SVN: r257809
2018-02-19 17:25:49 +01:00
Igor Tsimbalist
95df04335b Additional fix for PR 84239.
PR target/84239
	* libgcc/config/i386/shadow-stack-unwind.h (_Unwind_Frames_Extra):
	Include cetintrin.h not x86intrin.h.

From-SVN: r257730
2018-02-16 11:19:14 +01:00
Igor Tsimbalist
f8de876d8c Reimplement CET intrinsics for rdssp/incssp insn.
Introduce a couple of new CET intrinsics for reading and updating a
shadow stack pointer (_get_ssp and _inc_ssp). They replace the existing
_rdssp[d|q] and _incssp[d|q] instrinsics.

	PR target/84239
	* gcc/config/i386/cetintrin.h: Remove _rdssp[d|q] and
	add _get_ssp intrinsics. Remove argument from
	__builtin_ia32_rdssp[d|q].
	* gcc/config/i386/i386-builtin-types.def: Add UINT_FTYPE_VOID.
	* gcc/config/i386/i386-builtin.def: Remove argument from
	__builtin_ia32_rdssp[d|q].
	* gcc/config/i386/i386.c: Use UINT_FTYPE_VOID. Use
	ix86_expand_special_args_builtin for _rdssp[d|q].
	* gcc/config/i386/i386.md: Remove argument from rdssp[si|di] insn.
	Clear register before usage.
	* doc/extend.texi: Remove argument from __builtin_ia32_rdssp[d|q].
	Add documentation for new _get_ssp and _inc_ssp intrinsics.
	* testsuite/gcc.target/i386/cet-intrin-3.c: Use new _get_ssp and
	_inc_ssp intrinsics.
	* testsuite/gcc.target/i386/cet-intrin-4.c: Likewise.
	* testsuite/gcc.target/i386/cet-rdssp-1.c: Remove argument from
	__builtin_ia32_rdssp[d|q].
	* libgcc/config/i386/shadow-stack-unwind.hi (_Unwind_Frames_Extra):
	Use new _get_ssp and _inc_ssp intrinsics.

From-SVN: r257660
2018-02-14 16:06:21 +01:00
Julia Koval
02da1e9cae Add -march=icelake.
gcc/
	* config.gcc: Add -march=icelake.
	* config/i386/driver-i386.c (host_detect_local_cpu): Detect icelake.
	* config/i386/i386-c.c (ix86_target_macros_internal): Handle icelake.
	* config/i386/i386.c (processor_costs): Add m_ICELAKE.
	(PTA_ICELAKE, PTA_AVX512VNNI, PTA_GFNI, PTA_VAES, PTA_AVX512VBMI2,
	PTA_VPCLMULQDQ, PTA_RDPID, PTA_AVX512BITALG): New.
	(processor_target_table): Add icelake.
	(ix86_option_override_internal): Handle new PTAs.
	(get_builtin_code_for_version): Handle icelake.
	(M_INTEL_COREI7_ICELAKE): New.
	(fold_builtin_cpu): Handle icelake.
	* config/i386/i386.h (TARGET_ICELAKE, PROCESSOR_ICELAKE): New.
	* doc/invoke.texi: Add -march=icelake.
gcc/testsuite/
	* gcc.target/i386/funcspec-56.inc: Handle new march.
	* g++.dg/ext/mv16.C: Ditto.
libgcc/
	* config/i386/cpuinfo.h (processor_subtypes): Add INTEL_COREI7_ICELAKE.

From-SVN: r257331
2018-02-02 14:45:57 +01:00
Claudiu Zissulescu
048c6a9adc [ARC] Add support for reduced register file set
gcc/
2018-01-26  Claudiu Zissulescu  <claziss@synopsys.com>

        * config/arc/arc-arches.def: Option mrf16 valid for all
        architectures.
        * config/arc/arc-c.def (__ARC_RF16__): New predefined macro.
        * config/arc/arc-cpus.def (em_mini): New cpu with rf16 on.
        * config/arc/arc-options.def (FL_RF16): Add mrf16 option.
        * config/arc/arc-tables.opt: Regenerate.
        * config/arc/arc.c (arc_conditional_register_usage): Handle
        reduced register file case.
        (arc_file_start): Set must have build attributes.
        * config/arc/arc.h (MAX_ARC_PARM_REGS): Conditional define using
        mrf16 option value.
        * config/arc/arc.opt (mrf16): Add new option.
        * config/arc/elf.h (ATTRIBUTE_PCS): Define.
        * config/arc/genmultilib.awk: Handle new mrf16 option.
        * config/arc/linux.h (ATTRIBUTE_PCS): Define.
        * config/arc/t-multilib: Regenerate.
        * doc/invoke.texi (ARC Options): Document mrf16 option.

libgcc/
2018-01-26  Claudiu Zissulescu  <claziss@synopsys.com>

        * config/arc/lib1funcs.S (__udivmodsi4): Use safe version for RF16
        option.
        (__divsi3): Use RF16 safe registers.
        (__modsi3): Likewise.

From-SVN: r257083
2018-01-26 12:34:00 +01:00
Max Filippov
0889f16859 libgcc: xtensa: fix NaN return from add/sub/mul/div helpers
libgcc/
2018-01-23  Max Filippov  <jcmvbkbc@gmail.com>

	* config/xtensa/ieee754-df.S (__addsf3, __subsf3, __mulsf3)
	(__divsf3): Make NaN return value quiet.
	* config/xtensa/ieee754-sf.S (__adddf3, __subdf3, __muldf3)
	(__divdf3): Make NaN return value quiet.

From-SVN: r257002
2018-01-23 21:42:52 +00:00
Sebastian Perta
bc8b0d0428 rl78.md: New define_expand "anddi3".
2018-01-22  Sebastian Perta  <sebastian.perta@renesas.com>

	* config/rl78/rl78.md: New define_expand "anddi3".

2018-01-22  Sebastian Perta  <sebastian.perta@renesas.com>

	* config/rl78/anddi3.S: New assembly file.
	* config/rl78/t-rl78: Added anddi3.S to LIB2ADD.

From-SVN: r256958
2018-01-22 19:23:15 +00:00
Sebastian Perta
99cc06ea06 rl78.md: New define_expand "umindi3".
2018-01-22  Sebastian Perta  <sebastian.perta@renesas.com>

	* config/rl78/rl78.md: New define_expand "umindi3".

2018-01-22  Sebastian Perta  <sebastian.perta@renesas.com>

	* config/rl78/umindi3.S: New assembly file.
	* config/rl78/t-rl78: Added umindi3.S to LIB2ADD.

From-SVN: r256957
2018-01-22 18:51:28 +00:00
Sebastian Perta
6e9007a093 rl78.md: New define_expand "smindi3".
2018-01-22  Sebastian Perta  <sebastian.perta@renesas.com>

	* config/rl78/rl78.md: New define_expand "smindi3".

2018-01-22  Sebastian Perta  <sebastian.perta@renesas.com>

	* config/rl78/smindi3.S: New assembly file.
	* config/rl78/t-rl78: Added smindi3.S to LIB2ADD.

From-SVN: r256954
2018-01-22 18:17:09 +00:00
Sebastian Perta
d975e49487 rl78.md: New define_expand "smaxdi3".
2018-01-22  Sebastian Perta  <sebastian.perta@renesas.com>

	* config/rl78/rl78.md: New define_expand "smaxdi3".

2018-01-22  Sebastian Perta  <sebastian.perta@renesas.com>
 
	* config/rl78/smaxdi3.S: New assembly file.
	* config/rl78/t-rl78: Added smaxdi3.S to LIB2ADD.

From-SVN: r256953
2018-01-22 17:38:26 +00:00
Sebastian Perta
6a18c14681 fixed year in gcc/ChangeLog and libgcc/ChangeLog
From-SVN: r256949
2018-01-22 15:05:59 +00:00
Sebastian Perta
5dd16013d4 rl78.md: New define_expand "umaxdi3".
2017-01-22  Sebastian Perta  <sebastian.perta@renesas.com>

	* config/rl78/rl78.md: New define_expand "umaxdi3".

2017-01-22  Sebastian Perta  <sebastian.perta@renesas.com>
 
	* config/rl78/umaxdi3.S: New assembly file.
	* config/rl78/t-rl78: Added umaxdi3.S to LIB2ADD.

From-SVN: r256948
2018-01-22 15:00:59 +00:00
John David Anglin
07baf4a541 re PR lto/83452 (FAIL: gfortran.dg/save_6.f90 -O0 (test for excess errors))
PR lto/83452
	* config/pa/stublib.c (L_gnu_lto_v1): New stub definition.
	* config/pa/t-stublib (gnu_lto_v1-stub.o): Add make fragment.

From-SVN: r256933
2018-01-21 17:52:44 +00:00
Richard Sandiford
dbc3af4fc6 SVE unwinding
This patch adds support for unwinding frames that use the SVE
pseudo VG register.  We want this register to act like a normal
register if the CFI explicitly sets it, but want to provide a
default value otherwise.  Computing the default value requires
an SVE target, so we only want to compute it on demand.

aarch64_vg uses a hard-coded .inst in order to avoid a build
dependency on binutils 2.28 or later.

2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>

gcc/
	* doc/tm.texi.in (DWARF_LAZY_REGISTER_VALUE): Document.
	* doc/tm.texi: Regenerate.

libgcc/
	* config/aarch64/value-unwind.h (aarch64_vg): New function.
	(DWARF_LAZY_REGISTER_VALUE): Define.
	* unwind-dw2.c (_Unwind_GetGR): Use DWARF_LAZY_REGISTER_VALUE
	to provide a fallback register value.

gcc/testsuite/
	* g++.target/aarch64/sve/aarch64-sve.exp: New harness.
	* g++.target/aarch64/sve/catch_1.C: New test.
	* g++.target/aarch64/sve/catch_2.C: Likewise.
	* g++.target/aarch64/sve/catch_3.C: Likewise.
	* g++.target/aarch64/sve/catch_4.C: Likewise.
	* g++.target/aarch64/sve/catch_5.C: Likewise.
	* g++.target/aarch64/sve/catch_6.C: Likewise.

Reviewed-by: James Greenhalgh <james.greenhalgh@arm.com>

From-SVN: r256615
2018-01-13 17:56:52 +00:00
Michael Meissner
68df9882b2 quad-float128.h (IBM128_TYPE): Explicitly use __ibm128, instead of trying to use long double.
2018-01-08  Michael Meissner  <meissner@linux.vnet.ibm.com>

	* config/rs6000/quad-float128.h (IBM128_TYPE): Explicitly use
	__ibm128, instead of trying to use long double.
	(CVT_FLOAT128_TO_IBM128): Use TFtype instead of __float128 to
	accomidate -mabi=ieeelongdouble multilibs.
	(CVT_IBM128_TO_FLOAT128): Likewise.
	* config/rs6000/ibm-ldouble.c (IBM128_TYPE): New macro to define
	the appropriate IBM extended double type.
	(__gcc_qadd): Change all occurances of long double to IBM128_TYPE.
	(__gcc_qsub): Likewise.
	(__gcc_qmul): Likewise.
	(__gcc_qdiv): Likewise.
	(pack_ldouble): Likewise.
	(__gcc_qneg): Likewise.
	(__gcc_qeq): Likewise.
	(__gcc_qne): Likewise.
	(__gcc_qge): Likewise.
	(__gcc_qle): Likewise.
	(__gcc_stoq): Likewise.
	(__gcc_dtoq): Likewise.
	(__gcc_itoq): Likewise.
	(__gcc_utoq): Likewise.
	(__gcc_qunord): Likewise.
	* config/rs6000/_mulkc3.c (toplevel): Include soft-fp.h and
	quad-float128.h for the definitions.
	(COPYSIGN): Use the f128 version instead of the q version.
	(INFINITY): Likewise.
	(__mulkc3): Use TFmode/TCmode for float128 scalar/complex types.
	* config/rs6000/_divkc3.c (toplevel): Include soft-fp.h and
	quad-float128.h for the definitions.
	(COPYSIGN): Use the f128 version instead of the q version.
	(INFINITY): Likewise.
	(FABS): Likewise.
	(__divkc3): Use TFmode/TCmode for float128 scalar/complex types.
	* config/rs6000/extendkftf2-sw.c (__extendkftf2_sw): Likewise.
	* config/rs6000/trunctfkf2-sw.c (__trunctfkf2_sw): Likewise.

From-SVN: r256354
2018-01-08 22:11:24 +00:00
Michael Meissner
d5eea0f7cc quad-float128.h (IBM128_TYPE): Explicitly use __ibm128, instead of trying to use long double.
2018-01-08  Michael Meissner  <meissner@linux.vnet.ibm.com>

	* config/rs6000/quad-float128.h (IBM128_TYPE): Explicitly use
	__ibm128, instead of trying to use long double.
	(CVT_FLOAT128_TO_IBM128): Use TFtype instead of __float128 to
	accomidate -mabi=ieeelongdouble multilibs.
	(CVT_IBM128_TO_FLOAT128): Likewise.
	* config/rs6000/ibm-ldouble.c (IBM128_TYPE): New macro to define
	the appropriate IBM extended double type.
	(__gcc_qadd): Change all occurances of long double to IBM128_TYPE.
	(__gcc_qsub): Likewise.
	(__gcc_qmul): Likewise.
	(__gcc_qdiv): Likewise.
	(pack_ldouble): Likewise.
	(__gcc_qneg): Likewise.
	(__gcc_qeq): Likewise.
	(__gcc_qne): Likewise.
	(__gcc_qge): Likewise.
	(__gcc_qle): Likewise.
	(__gcc_stoq): Likewise.
	(__gcc_dtoq): Likewise.
	(__gcc_itoq): Likewise.
	(__gcc_utoq): Likewise.
	(__gcc_qunord): Likewise.
	* config/rs6000/_mulkc3.c (toplevel): Include soft-fp.h and
	quad-float128.h for the definitions.
	(COPYSIGN): Use the f128 version instead of the q version.
	(INFINITY): Likewise.
	(__mulkc3): Use TFmode/TCmode for float128 scalar/complex types.
	* config/rs6000/_divkc3.c (toplevel): Include soft-fp.h and
	quad-float128.h for the definitions.
	(COPYSIGN): Use the f128 version instead of the q version.
	(INFINITY): Likewise.
	(FABS): Likewise.
	(__divkc3): Use TFmode/TCmode for float128 scalar/complex types.
	* config/rs6000/extendkftf2-sw.c (__extendkftf2_sw): Likewise.
	* config/rs6000/trunctfkf2-sw.c (__trunctfkf2_sw): Likewise.

From-SVN: r256353
2018-01-08 21:49:37 +00:00
Sebastian Huber
64b371b1b5 RTEMS/EPIPHANY: Add RTEMS support
gcc/
	* config.gcc (epiphany-*-elf*): Add (epiphany-*-rtems*) configuration.
	* config/epiphany/rtems.h: New file.

libgcc/
	* config.host (epiphany-*-elf*): Add (epiphany-*-rtems*)
	configuration.

From-SVN: r256273
2018-01-05 06:17:22 +00:00
Jakub Jelinek
85ec4feb11 Update copyright years.
From-SVN: r256169
2018-01-03 11:03:58 +01:00
Kito Cheng
b8d7e076ed Use C version of multi3 for RVE support.
libgcc/
	* config/riscv/t-elf: Use multi3.c instead of multi3.S.
	* config/riscv/multi3.c: New file.
	* config/riscv/multi3.S: Remove.

From-SVN: r255598
2017-12-12 22:25:06 -08:00
Jim Wilson
3a4c600f38 Add .type and .size directives to riscv libgcc functions.
libgcc/
	* config/riscv/div.S: Use FUNC_* macros.
	* config/riscv/muldi3.S, config/riscv/multi3.S: Likewise
	* config/riscv/save-restore.S: Likewise.
	* config/riscv/riscv-asm.h: New.

From-SVN: r255521
2017-12-08 19:00:57 -08:00
Michael Meissner
6ae3512c0e _mulkc3.c (__mulkc3): Add forward declaration.
2017-11-30  Michael Meissner  <meissner@linux.vnet.ibm.com>

	* config/rs6000/_mulkc3.c (__mulkc3): Add forward declaration.
	* config/rs6000/_divkc3.c (__divkc3): Likewise.

From-SVN: r255289
2017-12-01 05:32:39 +00:00
Michael Meissner
75ad35b5c4 re PR libgcc/83112 (Silence warnings from PowerPC libgcc float128-ifunc.c compilation)
2017-11-30  Michael Meissner  <meissner@linux.vnet.ibm.com>

	PR libgcc/83112
	* config/rs6000/float128-ifunc.c (__addkf3_resolve): Use the
	correct type for all ifunc resolvers to silence -Wattribute-alias
	warnings.  Eliminate the forward declaration of the resolver
	functions which is no longer needed.
	(__subkf3_resolve): Likewise.
	(__mulkf3_resolve): Likewise.
	(__divkf3_resolve): Likewise.
	(__negkf2_resolve): Likewise.
	(__eqkf2_resolve): Likewise.
	(__nekf2_resolve): Likewise.
	(__gekf2_resolve): Likewise.
	(__gtkf2_resolve): Likewise.
	(__lekf2_resolve): Likewise.
	(__ltkf2_resolve): Likewise.
	(__unordkf2_resolve): Likewise.
	(__extendsfkf2_resolve): Likewise.
	(__extenddfkf2_resolve): Likewise.
	(__trunckfsf2_resolve): Likewise.
	(__trunckfdf2_resolve): Likewise.
	(__fixkfsi_resolve): Likewise.
	(__fixkfdi_resolve): Likewise.
	(__fixunskfsi_resolve): Likewise.
	(__fixunskfdi_resolve): Likewise.
	(__floatsikf_resolve): Likewise.
	(__floatdikf_resolve): Likewise.
	(__floatunsikf_resolve): Likewise.
	(__floatundikf_resolve): Likewise.
	(__extendkftf2_resolve): Likewise.
	(__trunctfkf2_resolve): Likewise.

	PR libgcc/83103
	* config/rs6000/quad-float128.h (TF): Don't define if long double
	is IEEE 128-bit floating point.
	(TCtype): Define as either TCmode or KCmode, depending on whether
	long double is IEEE 128-bit floating point.
	(__mulkc3_sw): Add declarations for software/hardware versions of
	complex multiply/divide.
	(__divkc3_sw): Likewise.
	(__mulkc3_hw): Likewise.
	(__divkc3_hw): Likewise.
	* config/rs6000/_mulkc3.c (_mulkc3): If we are building ifunc
	handlers to switch between using software emulation and hardware
	float128 instructions, build the complex multiply/divide functions
	for both software and hardware support.
	* config/rs6000/_divkc3.c (_divkc3): Likewise.
	* config/rs6000/float128-ifunc.c (__mulkc3_resolve): Likewise.
	(__divkc3_resolve): Likewise.
	(__mulkc3): Likewise.
	(__divkc3): Likewise.
	* config/rs6000/t-float128-hw (fp128_hardfp_src): Likewise.
	(fp128_hw_src): Likewise.
	(fp128_hw_static_obj): Likewise.
	(fp128_hw_shared_obj): Likewise.
	(_mulkc3-hw.c): Create _mulkc3-hw.c and _divkc3-hw.c from
	_mulkc3.c and _divkc3.c, changing the function name.
	(_divkc3-hw.c): Likewise.
	* config/rs6000/t-float128 (clean-float128): Delete _mulkc3-hw.c
	and _divkc3-hw.c.

From-SVN: r255282
2017-11-30 20:52:27 +00:00
Uros Bizjak
c234d8319b i386.c (processor_target_table): Add skylake_cost for skylake-avx512.
* config/i386/i386.c (processor_target_table): Add skylake_cost for
	skylake-avx512.
	* config/i386/x86-tune-costs.h (skylake_memcpy, skylake_memset,
	skylake_cost): New.

	* config/i386/driver-i386.c (host_detect_local_cpu):
	Detect skylake-avx512.

	* config.gcc: Add -march=cannonlake.
	* config/i386/driver-i386.c (host_detect_local_cpu): Detect cannonlake.
	* config/i386/i386-c.c (ix86_target_macros_internal): Handle cannonlake.
	* config/i386/i386.c (processor_costs): Add m_CANNONLAKE.
	(PTA_CANNONLAKE): New.
	(processor_target_table): Add cannonlake.
	(ix86_option_override_internal): Ditto.
	(fold_builtin_cpu): Ditto.
	(get_builtin_code_for_version): Handle cannonlake.
	(M_INTEL_COREI7_CANNONLAKE): New.
	* config/i386/i386.h (TARGET_CANNONLAKE, PROCESSOR_CANNONLAKE): New.
	* doc/invoke.texi: Add -march=cannonlake.

gcc/testsuite/

	* gcc.target/i386/funcspec-56.inc: Handle new march.
	* g++.dg/ext/mv16.C: Ditto.

libgcc/

	* config/i386/cpuinfo.c (get_intel_cpu): Handle cannonlake.
	* config/i386/cpuinfo.h (processor_subtypes): Add
	INTEL_COREI7_CANNONLAKE.

From-SVN: r255155
2017-11-26 17:11:29 +01:00
Igor Tsimbalist
1ebafce0bc re PR bootstrap/83015 (bootstrap comparison failure on ia64)
PR bootstrap/83015
	* config/cr16/unwind-cr16.c (uw_install_context): Add FRAMES
	parameter.
	* config/xtensa/unwind-dw2-xtensa.c: Likewise
	* config/ia64/unwind-ia64.c: Add frames parameter.
	* unwind-sjlj.c: Likewise.

From-SVN: r254951
2017-11-20 13:30:25 +01:00
Igor Tsimbalist
6a10fff4e2 Add Intel CET support for EH in libgcc.
Control-flow Enforcement Technology (CET), published by Intel,
introduces the Shadow Stack feature, which ensures a return from a
function is done to exactly the same location from where the function
was called. When EH is present the control-flow transfer may skip some
stack frames and the shadow stack has to be adjusted not to signal a
violation of a control-flow transfer. It's done by counting a number
of skiping frames and adjasting shadow stack pointer by this number.

Having new semantic of the 'ret' instruction if CET is supported in HW
the 'ret' instruction cannot be generated in ix86_expand_epilogue when
we are returning after EH is processed. Added a code in
ix86_expand_epilogue to adjust Shadow Stack pointer and to generate an
indirect jump instead of 'ret'. As sp register is used during this
adjustment thus the argument in pro_epilogue_adjust_stack is changed
to update cfa_reg based on whether control-flow instrumentation is set.
Without updating the cfa_reg field there is an assert later in dwarf2
pass related to mismatch the stack register and cfa_reg value.

gcc/
	* config/i386/i386.c (ix86_expand_epilogue): Change simple
	return to indirect jump for EH return if control-flow protection
	is enabled. Change explicit 'false' argument in
	pro_epilogue_adjust_stack with a value of flag_cf_protection.
	* config/i386/i386.md (simple_return_indirect_internal): Remove
	SImode restriction to support 64-bit.

libgcc/
	* config/i386/linux-unwind.h: Include
	config/i386/shadow-stack-unwind.h.
	* config/i386/shadow-stack-unwind.h: New file.
	* unwind-dw2.c: (uw_install_context): Add a frame parameter and
	pass it to _Unwind_Frames_Extra.
	* unwind-generic.h (_Unwind_Frames_Extra): New.
	* unwind.inc (_Unwind_RaiseException_Phase2): Add frames_p
	parameter. Add local variable frames to count number of frames.
	(_Unwind_ForcedUnwind_Phase2): Likewise.
	(_Unwind_RaiseException): Add local variable frames to count
	number of frames, pass it to _Unwind_RaiseException_Phase2 and
	uw_install_context.
	(_Unwind_ForcedUnwind): Likewise.
	(_Unwind_Resume): Likewise.
	(_Unwind_Resume_or_Rethrow): Likewise.

From-SVN: r254876
2017-11-17 16:21:23 +01:00
Igor Tsimbalist
1ecae1fc23 Enable building libgcc with CET options.
Enable building libgcc with CET options by default on Linux/x86 if
binutils supports CET v2.0.  It can be disabled with --disable-cet.
It is an error to configure GCC with --enable-cet if bintuiils
doesn't support CET v2.0.

ENDBR instruction is added to __morestack_large_model since it is
called indirectly.

2017-11-17  Igor Tsimbalist  <igor.v.tsimbalist@intel.com>

config/
	* cet.m4: New file.

gcc/
	* config.gcc (extra_headers): Add cet.h for x86 targets.
	* config/i386/cet.h: New file.
	* doc/install.texi: Add --enable-cet/--disable-cet.

libgcc/
	* Makefile.in (configure_deps): Add $(srcdir)/../config/cet.m4.
	(CET_FLAGS): New.
	* config/i386/morestack.S: Include <cet.h>.
	(__morestack_large_model): Add _CET_ENDBR at function entrance.
	* config/i386/resms64.h: Include <cet.h>.
	* config/i386/resms64f.h: Likewise.
	* config/i386/resms64fx.h: Likewise.
	* config/i386/resms64x.h: Likewise.
	* config/i386/savms64.h: Likewise.
	* config/i386/savms64f.h: Likewise.
	* config/i386/t-linux (HOST_LIBGCC2_CFLAGS): Add $(CET_FLAGS).
	(CRTSTUFF_T_CFLAGS): Likewise.
	* configure.ac: Include ../config/cet.m4.
	Set and substitute CET_FLAGS.
	* configure: Regenerated.

From-SVN: r254868
2017-11-17 14:34:39 +01:00
Rainer Orth
f021f1d3a6 Adapt Solaris 12 references
libgcc:
	* config.host (*-*-solaris2*): Adapt comment for Solaris 12
	renaming.
	* config/sol2/crtpg.c (__start_crt_compiler): Likewise.
	* configure.ac (libgcc_cv_solaris_crts): Likewise.
	* configure: Regenerate.

	gcc:
	* config.gcc (*-*-solaris2*): Enable default_use_cxa_atexit since
	Solaris 11.  Update comment.
	* configure.ac (gcc_cv_ld_pid): Adapt comment for Solaris 12
	renaming.
	* config/sol2.h (STARTFILE_SPEC): Likewise.
	* configure: Regenerate.

	gcc/testsuite:
	* lib/target-supports.exp (check_effective_target_pie): Adapt
	comment for Solaris 12 renaming.

	* gcc.dg/torture/pr60092.c: Remove *-*-solaris2.11* dg-xfail-run-if.

From-SVN: r254737
2017-11-14 18:31:01 +00:00
Tom de Vries
65f480c76f [libgcc, rs6000] Remove semicolon after do {} while (0) in REGISTER_CFA_OFFSET_FOR
2017-11-07  Tom de Vries  <tom@codesourcery.com>

	* config/rs6000/aix-unwind.h (REGISTER_CFA_OFFSET_FOR): Remove semicolon
	after "do {} while (0)".

From-SVN: r254491
2017-11-07 09:21:40 +00:00
Tom de Vries
2a321acb02 [libgcc] Remove semicolon after do {} while (0) in FP_HANDLE_EXCEPTIONS
2017-11-07  Tom de Vries  <tom@codesourcery.com>

	PR other/82784
	* config/aarch64/sfp-machine.h (FP_HANDLE_EXCEPTIONS): Remove
	semicolon after "do {} while (0)".
	* config/i386/sfp-machine.h (FP_HANDLE_EXCEPTIONS): Same.
	* config/ia64/sfp-machine.h (FP_HANDLE_EXCEPTIONS): Same.
	* config/mips/sfp-machine.h (FP_HANDLE_EXCEPTIONS): Same.
	* config/rs6000/sfp-machine.h (FP_HANDLE_EXCEPTIONS): Same.

From-SVN: r254489
2017-11-07 08:11:43 +00:00
Andreas Tobler
59fcf6c3ec re PR libgcc/82635 (std::thread's join broken on FreeBSD with all GCCs >= 5)
2017-11-04  Andreas Tobler  <andreast@gcc.gnu.org>

    PR libgcc/82635
    * config/i386/freebsd-unwind.h (MD_FALLBACK_FRAME_STATE_FOR): Use a
    sysctl to determine whether we're in a trampoline.
    Keep the pattern matching method for systems without
    KERN_PROC_SIGTRAMP sysctl.

From-SVN: r254411
2017-11-04 20:40:23 +01:00
Cupertino Miranda
b0c7ddf816 [ARC] Fix to unwinding.
gcc/ChangeLog:
2017-11-03  Cupertino Miranda  <cmiranda@synopsys.com>

        * config/arc/arc.c (arc_save_restore): Corrected CFA note.
        (arc_expand_prologue): Restore blink for millicode.
        * config/arc/linux.h (LINK_EH_SPEC): Defined.

libgcc/ChangeLog:
2017-11-03  Cupertino Miranda  <cmiranda@synopsys.com>
            Vineet Gupta <vgupta@synopsys.com>

        * config.host (arc*-*-linux*): Set md_unwind_header variable.
        * config/arc/linux-unwind-reg.def: New file.
        * config/arc/linux-unwind.h: Likewise.

Co-Authored-By: Vineet Gupta <vgupta@synopsys.com>

From-SVN: r254367
2017-11-03 11:51:18 +01:00
Sebastian Perta
5feee954e8 rl78.md: New define_expand "subdi3".
* config/rl78/rl78.md: New define_expand "subdi3".
* config/rl78/subdi3.S: New assembly file.
* config/rl78/t-rl78: Added subdi3.S to LIB2ADD.

From-SVN: r254019
2017-10-23 13:54:02 -04:00
Sebastian Perta
8cb41ec663 Forgot to add the new file :-P 2017-10-13 Sebastian Perta <sebastian.perta@renesas.com>
Forgot to add the new file :-P
2017-10-13  Sebastian Perta  <sebastian.perta@renesas.com>
* config/rl78/adddi3.S: New assembly file.
* config/rl78/t-rl78: Added adddi3.S to LIB2ADD.

From-SVN: r254016
2017-10-23 13:30:22 -04:00