2018-01-17 Martin Liska <mliska@suse.cz>
Backport from mainline
2018-01-04 Jakub Jelinek <jakub@redhat.com>
PR ipa/82352
* g++.dg/ipa/pr82352.C (size_t): Define to __SIZE_TYPE__ instead of
long unsigned int.
From-SVN: r256790
2018-01-17 Martin Liska <mliska@suse.cz>
Backport from mainline
2018-01-04 Martin Liska <mliska@suse.cz>
PR ipa/82352
* ipa-icf.c (sem_function::merge): Do not cross comdat boundary.
2018-01-17 Martin Liska <mliska@suse.cz>
Backport from mainline
2018-01-04 Martin Liska <mliska@suse.cz>
PR ipa/82352
* g++.dg/ipa/pr82352.C: New test.
From-SVN: r256789
2018-01-17 Martin Liska <mliska@suse.cz>
Backport from mainline
2018-01-03 Martin Liska <mliska@suse.cz>
PR ipa/83549
* cif-code.def (VARIADIC_THUNK): New enum value.
* ipa-inline-analysis.c (compute_inline_parameters):
Do not inline variadic thunks.
2018-01-17 Martin Liska <mliska@suse.cz>
Backport from mainline
2018-01-03 Martin Liska <mliska@suse.cz>
PR ipa/83549
* g++.dg/ipa/pr83549.C: New test.
From-SVN: r256788
2018-01-17 Martin Liska <mliska@suse.cz>
Backport from mainline
2017-12-27 Martin Liska <mliska@suse.cz>
PR tree-optimization/83552
* tree-ssa-strlen.c (fold_strstr_to_strncmp): Assign result
of get_string_lenth to a SSA_NAME if not a GIMPLE value.
2018-01-17 Martin Liska <mliska@suse.cz>
Backport from mainline
2017-12-27 Martin Liska <mliska@suse.cz>
PR tree-optimization/83552
* gcc.dg/pr83552.c: New test.
From-SVN: r256786
In PR83424 combine's move_deaths puts a REG_DEAD note in the wrong place
because dead_or_set_regno_p does not account for CLOBBER insns. This
fixes it.
PR rtl-optimization/83424
* rtlanal.c (dead_or_set_regno_p): Handle CLOBBER just like SET.
gcc/testsuite/
PR rtl-optimization/83424
* gcc.dg/pr83424.c: New testsuite.
From-SVN: r256750
Use reference of struct ix86_frame in ix86_expand_prologue and
ix86_expand_epilogue caused:
raised STORAGE_ERROR : stack overflow or erroneous memory access
make[5]: *** [/export/gnu/import/git/sources/gcc/gcc/ada/Make-generated.in:45: ada/sinfo.h] Error 1
on trunk when bootstrapping GCC with ada on x86-64.
* config/i386/i386.c (ix86_expand_prologue): Don't use reference
of struct ix86_frame.
(ix86_expand_epilogue): Likewise.
From-SVN: r256742
Since the thunk function may not be reachable in large code model,
-mcmodel=large is incompatible with -mindirect-branch=thunk,
-mindirect-branch=thunk-extern, -mfunction-return=thunk and
-mfunction-return=thunk-extern. Issue an error when they are used with
-mcmodel=large.
gcc/
Backport from mainline
2018-01-14 H.J. Lu <hongjiu.lu@intel.com>
* config/i386/i386.c (ix86_set_indirect_branch_type): Disallow
-mcmodel=large with -mindirect-branch=thunk,
-mindirect-branch=thunk-extern, -mfunction-return=thunk and
-mfunction-return=thunk-extern.
* doc/invoke.texi: Document -mcmodel=large is incompatible with
-mindirect-branch=thunk, -mindirect-branch=thunk-extern,
-mfunction-return=thunk and -mfunction-return=thunk-extern.
gcc/testsuite/
Backport from mainline
2018-01-14 H.J. Lu <hongjiu.lu@intel.com>
* gcc.target/i386/indirect-thunk-10.c: New test.
* gcc.target/i386/indirect-thunk-8.c: Likewise.
* gcc.target/i386/indirect-thunk-9.c: Likewise.
* gcc.target/i386/indirect-thunk-attr-10.c: Likewise.
* gcc.target/i386/indirect-thunk-attr-11.c: Likewise.
* gcc.target/i386/indirect-thunk-attr-9.c: Likewise.
* gcc.target/i386/ret-thunk-17.c: Likewise.
* gcc.target/i386/ret-thunk-18.c: Likewise.
* gcc.target/i386/ret-thunk-19.c: Likewise.
* gcc.target/i386/ret-thunk-20.c: Likewise.
* gcc.target/i386/ret-thunk-21.c: Likewise.
From-SVN: r256737
Add 'V', a special modifier which prints the name of the full integer
register without '%'. For
extern void (*func_p) (void);
void
foo (void)
{
asm ("call __x86_indirect_thunk_%V0" : : "a" (func_p));
}
it generates:
foo:
movq func_p(%rip), %rax
call __x86_indirect_thunk_rax
ret
gcc/
Backport from mainline
2018-01-14 H.J. Lu <hongjiu.lu@intel.com>
* config/i386/i386.c (print_reg): Print the name of the full
integer register without '%'.
(ix86_print_operand): Handle 'V'.
* doc/extend.texi: Document 'V' modifier.
gcc/testsuite/
Backport from mainline
2018-01-14 H.J. Lu <hongjiu.lu@intel.com>
* gcc.target/i386/indirect-thunk-register-4.c: New test.
From-SVN: r256736
Add -mfunction-return= option to convert function return to call and
return thunks. The default is 'keep', which keeps function return
unmodified. 'thunk' converts function return to call and return thunk.
'thunk-inline' converts function return to inlined call and return thunk.
'thunk-extern' converts function return to external call and return
thunk provided in a separate object file. You can control this behavior
for a specific function by using the function attribute function_return.
Function return thunk is the same as memory thunk for -mindirect-branch=
where the return address is at the top of the stack:
__x86_return_thunk:
call L2
L1:
pause
lfence
jmp L1
L2:
lea 8(%rsp), %rsp|lea 4(%esp), %esp
ret
and function return becomes
jmp __x86_return_thunk
-mindirect-branch= tests are updated with -mfunction-return=keep to
avoid false test failures when -mfunction-return=thunk is added to
RUNTESTFLAGS for "make check".
gcc/
Backport from mainline
2018-01-14 H.J. Lu <hongjiu.lu@intel.com>
* config/i386/i386-protos.h (ix86_output_function_return): New.
* config/i386/i386.c (ix86_set_indirect_branch_type): Also
set function_return_type.
(indirect_thunk_name): Add ret_p to indicate thunk for function
return.
(output_indirect_thunk_function): Pass false to
indirect_thunk_name.
(ix86_output_indirect_branch_via_reg): Likewise.
(ix86_output_indirect_branch_via_push): Likewise.
(output_indirect_thunk_function): Create alias for function
return thunk if regno < 0.
(ix86_output_function_return): New function.
(ix86_handle_fndecl_attribute): Handle function_return.
(ix86_attribute_table): Add function_return.
* config/i386/i386.h (machine_function): Add
function_return_type.
* config/i386/i386.md (simple_return_internal): Use
ix86_output_function_return.
(simple_return_internal_long): Likewise.
* config/i386/i386.opt (mfunction-return=): New option.
(indirect_branch): Mention -mfunction-return=.
* doc/extend.texi: Document function_return function attribute.
* doc/invoke.texi: Document -mfunction-return= option.
gcc/testsuite/
Backport from mainline
2018-01-14 H.J. Lu <hongjiu.lu@intel.com>
* gcc.target/i386/indirect-thunk-1.c (dg-options): Add
-mfunction-return=keep.
* gcc.target/i386/indirect-thunk-2.c: Likewise.
* gcc.target/i386/indirect-thunk-3.c: Likewise.
* gcc.target/i386/indirect-thunk-4.c: Likewise.
* gcc.target/i386/indirect-thunk-5.c: Likewise.
* gcc.target/i386/indirect-thunk-6.c: Likewise.
* gcc.target/i386/indirect-thunk-7.c: Likewise.
* gcc.target/i386/indirect-thunk-attr-1.c: Likewise.
* gcc.target/i386/indirect-thunk-attr-2.c: Likewise.
* gcc.target/i386/indirect-thunk-attr-3.c: Likewise.
* gcc.target/i386/indirect-thunk-attr-4.c: Likewise.
* gcc.target/i386/indirect-thunk-attr-5.c: Likewise.
* gcc.target/i386/indirect-thunk-attr-6.c: Likewise.
* gcc.target/i386/indirect-thunk-attr-7.c: Likewise.
* gcc.target/i386/indirect-thunk-attr-8.c: Likewise.
* gcc.target/i386/indirect-thunk-bnd-1.c: Likewise.
* gcc.target/i386/indirect-thunk-bnd-2.c: Likewise.
* gcc.target/i386/indirect-thunk-bnd-3.c: Likewise.
* gcc.target/i386/indirect-thunk-bnd-4.c: Likewise.
* gcc.target/i386/indirect-thunk-extern-1.c: Likewise.
* gcc.target/i386/indirect-thunk-extern-2.c: Likewise.
* gcc.target/i386/indirect-thunk-extern-3.c: Likewise.
* gcc.target/i386/indirect-thunk-extern-4.c: Likewise.
* gcc.target/i386/indirect-thunk-extern-5.c: Likewise.
* gcc.target/i386/indirect-thunk-extern-6.c: Likewise.
* gcc.target/i386/indirect-thunk-extern-7.c: Likewise.
* gcc.target/i386/indirect-thunk-inline-1.c: Likewise.
* gcc.target/i386/indirect-thunk-inline-2.c: Likewise.
* gcc.target/i386/indirect-thunk-inline-3.c: Likewise.
* gcc.target/i386/indirect-thunk-inline-4.c: Likewise.
* gcc.target/i386/indirect-thunk-inline-5.c: Likewise.
* gcc.target/i386/indirect-thunk-inline-6.c: Likewise.
* gcc.target/i386/indirect-thunk-inline-7.c: Likewise.
* gcc.target/i386/ret-thunk-1.c: New test.
* gcc.target/i386/ret-thunk-10.c: Likewise.
* gcc.target/i386/ret-thunk-11.c: Likewise.
* gcc.target/i386/ret-thunk-12.c: Likewise.
* gcc.target/i386/ret-thunk-13.c: Likewise.
* gcc.target/i386/ret-thunk-14.c: Likewise.
* gcc.target/i386/ret-thunk-15.c: Likewise.
* gcc.target/i386/ret-thunk-16.c: Likewise.
* gcc.target/i386/ret-thunk-2.c: Likewise.
* gcc.target/i386/ret-thunk-3.c: Likewise.
* gcc.target/i386/ret-thunk-4.c: Likewise.
* gcc.target/i386/ret-thunk-5.c: Likewise.
* gcc.target/i386/ret-thunk-6.c: Likewise.
* gcc.target/i386/ret-thunk-7.c: Likewise.
* gcc.target/i386/ret-thunk-8.c: Likewise.
* gcc.target/i386/ret-thunk-9.c: Likewise.
i386: Don't use ASM_OUTPUT_DEF for TARGET_MACHO
ASM_OUTPUT_DEF isn't defined for TARGET_MACHO. Use ASM_OUTPUT_LABEL to
generate the __x86_return_thunk label, instead of the set directive.
Update testcase to remove the __x86_return_thunk label check. Since
-fno-pic is ignored on Darwin, update testcases to sscan or "push"
only on Linux.
gcc/
Backport from mainline
2018-01-15 H.J. Lu <hongjiu.lu@intel.com>
PR target/83839
* config/i386/i386.c (output_indirect_thunk_function): Use
ASM_OUTPUT_LABEL, instead of ASM_OUTPUT_DEF, for TARGET_MACHO
for __x86.return_thunk.
gcc/testsuite/
Backport from mainline
2018-01-15 H.J. Lu <hongjiu.lu@intel.com>
PR target/83839
* gcc.target/i386/indirect-thunk-1.c: Scan for "push" only on
Linux.
* gcc.target/i386/indirect-thunk-2.c: Likewise.
* gcc.target/i386/indirect-thunk-3.c: Likewise.
* gcc.target/i386/indirect-thunk-4.c: Likewise.
* gcc.target/i386/indirect-thunk-7.c: Likewise.
* gcc.target/i386/indirect-thunk-attr-1.c: Likewise.
* gcc.target/i386/indirect-thunk-attr-2.c: Likewise.
* gcc.target/i386/indirect-thunk-attr-5.c: Likewise.
* gcc.target/i386/indirect-thunk-attr-6.c: Likewise.
* gcc.target/i386/indirect-thunk-attr-7.c: Likewise.
* gcc.target/i386/indirect-thunk-extern-1.c: Likewise.
* gcc.target/i386/indirect-thunk-extern-2.c: Likewise.
* gcc.target/i386/indirect-thunk-extern-3.c: Likewise.
* gcc.target/i386/indirect-thunk-extern-4.c: Likewise.
* gcc.target/i386/indirect-thunk-extern-7.c: Likewise.
* gcc.target/i386/indirect-thunk-register-1.c: Likewise.
* gcc.target/i386/indirect-thunk-register-3.c: Likewise.
* gcc.target/i386/indirect-thunk-register-4.c: Likewise.
* gcc.target/i386/ret-thunk-10.c: Likewise.
* gcc.target/i386/ret-thunk-11.c: Likewise.
* gcc.target/i386/ret-thunk-12.c: Likewise.
* gcc.target/i386/ret-thunk-13.c: Likewise.
* gcc.target/i386/ret-thunk-14.c: Likewise.
* gcc.target/i386/ret-thunk-15.c: Likewise.
* gcc.target/i386/ret-thunk-9.c: Don't check the
__x86_return_thunk label.
Scan for "push" only for Linux.
From-SVN: r256734
2018-01-16 Richard Biener <rguenther@suse.de>
Backport from mainline
2017-09-29 Vladimir Makarov <vmakarov@redhat.com>
PR target/81481
* ira-costs.c (scan_one_insn): Don't take into account PIC equiv
with a symbol for LRA.
* gcc.target/i386/pr81481.c: New.
From-SVN: r256731
When a function call is removed, it may become a leaf function. But if
argument may be passed on stack, we need to align the stack frame when
there is no tail call.
Tested on Linux/i686 and Linux/x86-64.
gcc/
Backport from mainline
PR target/83330
* config/i386/i386.c (ix86_function_arg_advance): Set
outgoing_args_on_stack to true if there are outgoing arguments
on stack.
(ix86_function_arg): Likewise.
(ix86_compute_frame_layout): Align stack frame if argument is
passed on stack.
* config/i386/i386.h (machine_function): Add
outgoing_args_on_stack.
gcc/testsuite/
Backport from mainline
PR target/83330
* gcc.target/i386/pr83330.c: New test.
From-SVN: r256703
When there is no need to make a copy of ix86_frame, we can use reference
of struct ix86_frame to avoid copy.
Backport from mainline
* config/i386/i386.c (ix86_expand_prologue): Use reference of
struct ix86_frame.
(ix86_expand_epilogue): Likewise.
From-SVN: r256695
When there is no need to make a copy of ix86_frame, we can use reference
of struct ix86_frame to avoid copy.
Backport from mainline
* config/i386/i386.c (ix86_can_use_return_insn_p): Use reference
of struct ix86_frame.
(ix86_initial_elimination_offset): Likewise.
(ix86_expand_split_stack_prologue): Likewise.
From-SVN: r256692
Make ix86_frame available to i386 code generation. This is needed to
backport the patch set of -mindirect-branch= to mitigate variant #2 of
the speculative execution vulnerabilities on x86 processors identified
by CVE-2017-5715, aka Spectre.
Backport from mainline
* config/i386/i386.c (ix86_frame): Moved to ...
* config/i386/i386.h (ix86_frame): Here.
(machine_function): Add frame.
* config/i386/i386.c (ix86_compute_frame_layout): Repace the
frame argument with &cfun->machine->frame.
(ix86_can_use_return_insn_p): Don't pass &frame to
ix86_compute_frame_layout. Copy frame from cfun->machine->frame.
(ix86_can_eliminate): Likewise.
(ix86_expand_prologue): Likewise.
(ix86_expand_epilogue): Likewise.
(ix86_expand_split_stack_prologue): Likewise.
From-SVN: r256691
2018-01-14 Jerry DeLisle <jvdelisle@gcc.gnu.org>
Backport from trunk
PR libgfortran/83811
* gfortran.dg/fmt_e.f90: New test.
* gfortran.dg/fmt_e.f90: New test.
From-SVN: r256675
[gcc]
2018-01-14 Bill Schmidt <wschmidt@linux.vnet.ibm.com>
Backport from mainline
2018-01-08 Bill Schmidt <wschmidt@linux.vnet.ibm.com>
PR target/83677
* config/rs6000/altivec.md (*altivec_vpermr_<mode>_internal):
Reverse order of second and third operands in first alternative.
* config/rs6000/rs6000.c (rs6000_expand_vector_set): Reverse order
of first and second elements in UNSPEC_VPERMR vector.
(altivec_expand_vec_perm_le): Likewise.
[gcc/testsuite]
2018-01-14 Bill Schmidt <wschmidt@linux.vnet.ibm.com>
Backport from mainline
2018-01-08 Bill Schmidt <wschmidt@linux.vnet.ibm.com>
PR target/83677
* gcc.target/powerpc/pr83677.c: New file.
From-SVN: r256670
2012-01-13 Steven G. Kargl <kargl@gcc.gnu.org>
Backport from mainline
PR fortran/78814
* interface.c (symbol_rank): Check for NULL pointer.
2012-01-13 Steven G. Kargl <kargl@gcc.gnu.org>
Backport from mainline
PR fortran/78814
* gfortran.dg/interface_40.f90: New testcase.
From-SVN: r256646
* python/libstdcxx/v6/printers.py (register_type_printers): Remove
printer for experimental::any. Fix printers for experimental::optional
and experimental::basic_string_view.
From-SVN: r256604
PR rtl-optimization/83565
* rtlanal.c (nonzero_bits1): On WORD_REGISTER_OPERATIONS machines, do
not extend the result to a larger mode for rotate operations.
(num_sign_bit_copies1): Likewise.
From-SVN: r256573
2018-01-10 Steven G. Kargl <kargl@gcc.gnu.org>
PR fortran/82367
* resolve.c (resolve_allocate_expr): Check for NULL pointer.
2018-01-10 Steven G. Kargl <kargl@gcc.gnu.org>
PR fortran/82367
* gfortran.dg/deferred_character_18.f90: New test.
From-SVN: r256466
2018-01-10 Steven G. Kargl <kargl@gcc.gnu.org>
Backport from trunk
PR fortran/83093
* resolve.c (resolve_charlen): Check the type of cl->length
after resolution.
2018-01-10 Steven G. Kargl <kargl@gcc.gnu.org>
Backport from trunk
PR fortran/83093
* gfortran.dg/allocate_with_typespec_7.f90: New test.
From-SVN: r256459
2018-01-10 Steven G. Kargl <kargl@kgcc.gnu.org>
Backport r254555 from trunk
PR Fortran/82841
* gfortran.dg/transfer_simplify_11.f90: New test.
2018-01-10 Steven G. Kargl <kargl@kgcc.gnu.org>
Backport r254555 from trunk
PR Fortran/82841
* simplify.c(gfc_simplify_transfer): Do not dereference a NULL pointer.
Unwrap a short line.
From-SVN: r256445
GCC Administrator
Jason Merrill
Richard Biener
Kyrylo Tkachov
Martin Liska
Eric Botcazou
Segher Boessenkool
H.J. Lu
H.J. Lu
Jerry DeLisle
Bill Schmidt
Uros Bizjak
Steven G. Kargl
Jonathan Wakely
Oleg Endo
Rainer Orth
Joseph Myers