2017-01-23 Martin Liska <mliska@suse.cz>
* asan.c (create_asan_shadow_var): New function.
(asan_expand_poison_ifn): Likewise.
* asan.h (asan_expand_poison_ifn): New declaration.
* internal-fn.c (expand_ASAN_POISON): Likewise.
* internal-fn.def (ASAN_POISON): New builtin.
* sanopt.c (pass_sanopt::execute): Expand
asan_expand_poison_ifn.
* tree-inline.c (copy_decl_for_dup_finish): Make function
external.
* tree-inline.h (copy_decl_for_dup_finish): Likewise.
* tree-ssa.c (is_asan_mark_p): New function.
(execute_update_addresses_taken): Rewrite local variables
(identified just by use-after-scope as addressable) into SSA.
2017-01-23 Martin Liska <mliska@suse.cz>
* gcc.dg/asan/use-after-scope-3.c: Add additional flags.
* gcc.dg/asan/use-after-scope-9.c: Likewise and grep for
sanopt optimization for ASAN_POISON.
From-SVN: r244791
2017-01-21 Bernd Schmidt <bschmidt@redhat.com>
rtl-optimization/79125
* cprop.c (local_cprop_pass): Handle cases where we make an
unconditional trap.
PR rtl-optimization/79125
* gcc.dg/torture/pr79125.c: New test.
From-SVN: r244741
The varargs code for SVR4 puts all (integer) arguments in 4-byte slots.
When it then reads an item from there as something not a multiple of 4
bytes, it needs to adjust the address if big endian. We didn't yet do
that.
This fixes the g++.dg/abi/scoped1.C, gcc.dg/compat/scalar-by-value-4,
and gcc.dg/compat/scalar-return-4 testcases.
PR target/61729
PR target/77850
* config/rs6000/rs6000.c (rs6000_gimplify_va_arg): Adjust address to
read from, for big endian.
From-SVN: r244740
PR target/71270
* config/arm/arm.c (neon_valid_immediate): Reject vector constants
in big-endian mode when they are not a single duplicated value.
From-SVN: r244716
* omp-low.c (omplow_simd_context): New struct. Use it...
(lower_rec_simd_input_clauses): ...here and...
(lower_rec_input_clauses): ...here to hold common data. Adjust all
references to idx, lane, max_vf, is_simt.
From-SVN: r244713
2017-01-20 Martin Liska <mliska@suse.cz>
* read-rtl-function.c (function_reader::create_function): Use
build_decl instread of build_decl_stat.
From-SVN: r244686
I foolishly tested this with r241087 reverted. After that revision
default_stack_protect_guard is no longer called if the compiler defaults
to using the TLS guard, which of course is the wrong thing to do if
there is some other way to enable the global guard.
This fixes it.
PR target/78875
PR target/79140
* config/rs6000/rs6000.c (TARGET_STACK_PROTECT_GUARD): Unconditionally
define to rs6000_init_stack_protect_guard.
(rs6000_init_stack_protect_guard): New function.
From-SVN: r244677
gcc/
* config/aarch64/aarch64-opts.h (aarch64_function_type): New enum.
* config/aarch64/aarch64-protos.h
(aarch64_return_address_signing_enabled): New declaration.
* config/aarch64/aarch64.c (aarch64_return_address_signing_enabled):
New function.
(aarch64_expand_prologue): Sign return address before it's pushed onto
stack.
(aarch64_expand_epilogue): Authenticate return address fetched from
stack.
(aarch64_override_options): Sanity check for ILP32 and ISA level.
(aarch64_attributes): New function attributes for "sign-return-address".
* config/aarch64/aarch64.md (UNSPEC_AUTI1716, UNSPEC_AUTISP,
UNSPEC_PACI1716, UNSPEC_PACISP, UNSPEC_XPACLRI): New unspecs.
("*do_return"): Generate combined instructions according to key index.
("<pauth_mnem_prefix>sp", "<pauth_mnem_prefix1716", "xpaclri"): New.
* config/aarch64/iterators.md (PAUTH_LR_SP, PAUTH_17_16): New integer
iterators.
(pauth_mnem_prefix, pauth_hint_num_a): New integer attributes.
* config/aarch64/aarch64.opt (msign-return-address=): New.
* doc/extend.texi (AArch64 Function Attributes): Documents
"sign-return-address=".
* doc/invoke.texi (AArch64 Options): Documents "-msign-return-address=".
gcc/testsuite/
* gcc.target/aarch64/return_address_sign_1.c: New testcase for no
combined instructions.
* gcc.target/aarch64/return_address_sign_2.c: New testcase for combined
instructions.
* gcc.target/aarch64/return_address_sign_3.c: New testcase for disable
of pointer authentication.
From-SVN: r244666
[gcc]
2017-01-19 Michael Meissner <meissner@linux.vnet.ibm.com>
* config/rs6000/rs6000-cpus.def (ISA_3_0_MASKS_SERVER): Enable
-mpower9-minmax by default for -mcpu=power9.
(ISA_3_MASKS_IEEE): Require -mvsx-small-integer to enable IEEE
128-bit floating point.
[gcc/testsuite]
2017-01-19 Michael Meissner <meissner@linux.vnet.ibm.com>
* gcc.target/powerpc/float128-hw.c: Do not require IEEE 128-bit
floating point hardware to run test.
From-SVN: r244662
glibc compiled with current gcc-7 fails one test due to strcmp and
strncmp appearing in the PLT. This is because the inline expansion of
those functions falls back to a function call, but doesn't use the asm
name for the call.
PR target/79144
* config/rs6000/rs6000.c (expand_strn_compare): Get the asm name
for strcmp and strncmp from corresponding builtin decl.
From-SVN: r244659
gcc/jit/ChangeLog:
* dummy-frontend.c (jit_langhook_type_for_size): Delete.
(LANG_HOOKS_TYPE_FOR_SIZE): Don't redefine.
gcc/ChangeLog:
* langhooks-def.h (lhd_type_for_size): New decl.
(LANG_HOOKS_TYPE_FOR_SIZE): Define as lhd_type_for_size.
* langhooks.c (lhd_type_for_size): New function, taken from
lto_type_for_size.
gcc/lto/ChangeLog:
* lto-lang.c (builtin_type_for_size): Convert call to
lto_type_for_size to one through the langhook.
(lto_type_for_size): Move to langhooks.c and rename to
lhd_type_for_size.
(LANG_HOOKS_TYPE_FOR_SIZE): Don't redefine.
From-SVN: r244646
2017-01-19 Richard Biener <rguenther@suse.de>
PR tree-optimization/72488
* tree-ssa-sccvn.c (run_scc_vn): When we abort the VN make
sure to restore SSA info.
* tree-ssa.c (verify_ssa): Verify SSA info is not shared.
From-SVN: r244623
When generating a shift from an extended value moving from one to two
machine registers, the type of the right shift is for the most
significant word should be determined by the signedness of the inner
type, not the signedness of the result type.
gcc:
PR rtl-optimization/79121
* expr.c (expand_expr_real_2, case LSHIFT_EXPR): Look at the signedness
of the inner type when shifting an extended value.
gcc/testsuite:
* gcc.c-torture/execute/pr79121.c: New test.
From-SVN: r244613
2017-01-18 Aaron Sawdey <acsawdey@linux.vnet.ibm.com>
* config/rs6000/rs6000-protos.h (expand_strn_compare): Add arg.
* config/rs6000/rs6000.c (expand_strn_compare): Add ability to expand
strcmp. Fix bug where comparison didn't stop with zero byte. Fix
case where N arg is SIZE_MAX.
* config/rs6000/rs6000.md (cmpstrnsi): Args to expand_strn_compare.
(cmpstrsi): Add pattern.
2017-01-18 Aaron Sawdey <acsawdey@linux.vnet.ibm.com>
* gcc.dg/strcmp-1.c: New test.
* gcc.dg/strncmp-1.c: Add test for a bug that escaped.
From-SVN: r244598
SHA1H instructions may be scheduled after a SHA1C instruction
that uses the same input register. However SHA1C updates its input,
so if SHA1H is scheduled after it, it requires an extra move.
Increase the priority of SHA1H to ensure it gets scheduled
earlier, avoiding the move.
gcc/
* config/aarch64/aarch64.c (aarch64_sched_adjust_priority)
New function.
(TARGET_SCHED_ADJUST_PRIORITY): Define target hook.
From-SVN: r244586
Martin Liska
Maxim Ostapenko
Gerald Pfeifer
Dimitry Andric
Jan Hubicka
Bernd Schmidt
Segher Boessenkool
Jiong Wang
Marek Polacek
Alexander Monakov
Kyrylo Tkachov
Richard Biener
Alexander Monakov
Graham Markall
Martin Jambor
Andrew Senkevich
Matthew Fortune
Michael Meissner
Alan Modra
Uros Bizjak
Tamar Christina
David Malcolm
Pat Haugen
Chenghua Xu
Matthew Fortune
Richard Earnshaw
Peter Bergner
Bill Schmidt
Aaron Sawdey
Uros Bizjak
Wilco Dijkstra