Alan Modra [Thu, 21 Sep 2017 13:25:45 +0000 (22:55 +0930)]
PR81996, __builtin_return_address(0) fails
rs6000_return_addr assumes that the stack link is at frame+0, which is
true for count>0. For count==0, rs6000_return_addr is called with
frame==frame_pointer_rtx and the stack link is *not* at frame+0 if
-fstack-protector-all or -fsanitize=address because rs6000.h sets
FRAME_GROWS_DOWNWARD for those options.
PR target/81996
* gcc/config/rs6000/rs6000.c (rs6000_return_addr): Use
stack_pointer_rtx for count 0. Update comments. Break up
large rtl expression.
Jason Merrill [Mon, 18 Sep 2017 18:34:10 +0000 (14:34 -0400)]
PR c++/80294 - ICE with constexpr and inheritance.
* constexpr.c (reduced_constant_expression_p):
A null constructor element is non-constant.
(cxx_eval_indirect_ref): Don't VERIFY_CONSTANT before
returning an empty base.
Jason Merrill [Mon, 18 Sep 2017 18:33:58 +0000 (14:33 -0400)]
PR c++/72457 - ICE with list-value-initialized base.
* init.c (expand_aggr_init_1): Only handle value-init of bases.
* constexpr.c (build_data_member_initialization): Handle multiple
initializers for the same field.
Jakub Jelinek [Sat, 16 Sep 2017 18:39:47 +0000 (20:39 +0200)]
backport: re PR target/82112 (internal compiler error: in fold_convert_loc, at fold-const.c:2262)
Backported from mainline
2017-09-12 Jakub Jelinek <jakub@redhat.com>
PR target/82112
* c-common.c (sync_resolve_size): Instead of c_dialect_cxx ()
assertion check that in the condition.
(get_atomic_generic_size): Likewise. Before testing if parameter
has pointer type, if it has array type, call for C++
default_conversion to perform array-to-pointer conversion.
* c-c++-common/pr82112.c: New test.
* gcc.dg/pr82112.c: New test.
Jakub Jelinek [Sat, 16 Sep 2017 18:37:09 +0000 (20:37 +0200)]
backport: re PR middle-end/81052 (ICE in verify_dominators, at dominance.c:1184)
Backported from mainline
2017-08-03 Jakub Jelinek <jakub@redhat.com>
PR middle-end/81052
* omp-low.c (diagnose_sb_0): Handle flag_openmp_simd like flag_openmp.
(pass_diagnose_omp_blocks::gate): Enable also for flag_openmp_simd.
Backported from mainline
2017-07-27 Jakub Jelinek <jakub@redhat.com>
PR c/45784
* c-omp.c (c_finish_omp_for): If the condition is wrapped in
rhs of COMPOUND_EXPR(s), skip them and readd their lhs into
new COMPOUND_EXPRs around the rhs of the comparison.
* testsuite/libgomp.c/pr45784.c: New test.
* testsuite/libgomp.c++/pr45784.C: New test.
Jakub Jelinek [Sat, 16 Sep 2017 18:35:03 +0000 (20:35 +0200)]
backport: re PR target/81766 (ICE in maybe_add_or_update_dep_1, at sched-deps.c:924 caused by r250815)
Backported from mainline
2017-08-08 Richard Biener <rguenther@suse.de>
PR middle-end/81766
* function.c (thread_prologue_and_epilogue_insns): Restore
behavior of always calling find_many_sub_basic_blocks on
the inserted prologue.
* gcc.target/i386/pr81766.c: New testcase.
2017-08-02 Jakub Jelinek <jakub@redhat.com>
PR middle-end/79499
* function.c (thread_prologue_and_epilogue_insns): Determine blocks
for find_many_sub_basic_blocks bitmap by looking up BLOCK_FOR_INSN
of first NONDEBUG_INSN_P in each of the split_prologue_seq and
prologue_seq sequences - if any.
Jakub Jelinek [Sat, 16 Sep 2017 18:31:58 +0000 (20:31 +0200)]
backport: re PR c++/81154 (OpenMP with shared variable in a template class crash)
Backported from mainline
2017-06-21 Jakub Jelinek <jakub@redhat.com>
PR c++/81154
* semantics.c (handle_omp_array_sections_1, finish_omp_clauses):
Complain about t not being a variable if t is OVERLOAD even
when processing_template_decl.
Martin Liska [Fri, 15 Sep 2017 12:14:19 +0000 (14:14 +0200)]
Backport r251530
2017-09-15 Martin Liska <mliska@suse.cz>
Backport from mainline
2017-08-30 Martin Liska <mliska@suse.cz>
PR inline-asm/82001
* ipa-icf-gimple.c (func_checker::compare_tree_list_operand):
Rename to ...
(func_checker::compare_asm_inputs_outputs): ... this function.
(func_checker::compare_gimple_asm): Use the function to compare
also ASM constrains.
* ipa-icf-gimple.h: Rename the function.
2017-09-15 Martin Liska <mliska@suse.cz>
Backport from mainline
2017-08-30 Martin Liska <mliska@suse.cz>
PR inline-asm/82001
* gcc.dg/ipa/pr82001.c: New test.
Martin Liska [Fri, 15 Sep 2017 12:14:01 +0000 (14:14 +0200)]
Backport r251020
2017-09-15 Martin Liska <mliska@suse.cz>
Backport from mainline
2017-08-10 Martin Liska <mliska@suse.cz>
PR c++/81355
* c-attribs.c (handle_target_attribute):
Report warning for an empty string argument of target attribute.
2017-09-15 Martin Liska <mliska@suse.cz>
Backport from mainline
2017-08-10 Martin Liska <mliska@suse.cz>
Martin Liska [Fri, 15 Sep 2017 12:13:42 +0000 (14:13 +0200)]
Backport r250951
2017-09-15 Martin Liska <mliska@suse.cz>
Backport from mainline
2017-08-08 Martin Liska <mliska@suse.cz>
PR tree-opt/81696
* ipa-icf-gimple.c (func_checker::compare_cst_or_decl): Consider
LABEL_DECLs that can be from a different function.
2017-09-15 Martin Liska <mliska@suse.cz>
Backport from mainline
2017-08-08 Martin Liska <mliska@suse.cz>
PR tree-opt/81696
* gcc.dg/ipa/pr81696.c: New test.
Jonathan Wakely [Wed, 13 Sep 2017 15:28:18 +0000 (16:28 +0100)]
Fix libstdc++ tests using invalid effective-target
* testsuite/20_util/reference_wrapper/80504.cc: Do not use invalid
effective-target.
* testsuite/22_locale/conversions/buffer/2.cc: Likewise.
* testsuite/28_regex/basic_regex/ctors/basic/iter.cc: Likewise. Fix
use of test_container.
Bill Schmidt [Tue, 12 Sep 2017 21:07:30 +0000 (21:07 +0000)]
backport: re PR target/81833 (PowerPC: VSX: Miscompiles ffmpeg's scalarproduct_int16_vsx at -O1)
[gcc]
2017-09-12 Bill Schmidt <wschmidt@linux.vnet.ibm.com>
Backport from mainline
2017-09-05 Bill Schmidt <wschmidt@linux.vnet.ibm.com>
PR target/81833
* config/rs6000/altivec.md (altivec_vsum2sws): Convert from a
define_insn to a define_expand.
(altivec_vsum2sws_direct): New define_insn.
(altivec_vsumsws): Convert from a define_insn to a define_expand.
[gcc/testsuite]
2017-09-12 Bill Schmidt <wschmidt@linux.vnet.ibm.com>
Backport from mainline
2017-09-05 Bill Schmidt <wschmidt@linux.vnet.ibm.com>
PR target/81833
* gcc.target/powerpc/pr81833-1.c: New file.
* gcc.target/powerpc/pr81833-2.c: New file.
Max Filippov [Mon, 11 Sep 2017 21:53:38 +0000 (21:53 +0000)]
xtensa: fix PR target/82181
2017-09-11 Max Filippov <jcmvbkbc@gmail.com>
gcc/
Backport from mainline
* config/xtensa/xtensa.c (xtensa_mem_offset): Check that both
words of DImode object are reachable by xtensa_uimm8x4 access.
backport: re PR sanitizer/81066 (sanitizer_stoptheworld_linux_libcdep.cc:276:22: error: aggregate ‘sigaltstack handler_stack’ has incomplete type and cannot be defined)
2017-09-07 Matthias Klose <doko@ubuntu.com>
Backported from mainline
2017-07-14 Jakub Jelinek <jakub@redhat.com>
Bill Schmidt [Wed, 6 Sep 2017 18:48:50 +0000 (18:48 +0000)]
backport: re PR tree-optimization/81987 (ICE in verify_ssa with -O3 -march=skylake-avx512)
[gcc]
2017-09-06 Bill Schmidt <wschmidt@linux.vnet.ibm.com>
Backport from mainline:
2017-08-30 Bill Schmidt <wschmidt@linux.vnet.ibm.com>
PR tree-optimization/81987
* gimple-ssa-strength-reduction.c (insert_initializers): Don't
insert an initializer in a location not dominated by the stride
definition.
[gcc/testsuite]
2017-09-06 Bill Schmidt <wschmidt@linux.vnet.ibm.com>
Backport from mainline:
2017-08-30 Bill Schmidt <wschmidt@linux.vnet.ibm.com>
PR tree-optimization/81987
* g++.dg/torture/pr81987.C: New file.
Jonathan Wakely [Mon, 4 Sep 2017 17:09:05 +0000 (18:09 +0100)]
PR libstdc++/81751 don't call fflush(NULL)
Backport from mainline
2017-08-09 Jonathan Wakely <jwakely@redhat.com>
PR libstdc++/79820
PR libstdc++/81751
* config/io/basic_file_stdio.cc (sys_open(FILE*, ios_base::openmode)):
Call fflush on the stream instead of calling sync() while _M_cfile is
null. Restore original value of errno.
* testsuite/ext/stdio_filebuf/char/79820.cc: New.
* testsuite/ext/stdio_filebuf/char/81751.cc: New.
Jonathan Wakely [Fri, 1 Sep 2017 12:15:44 +0000 (13:15 +0100)]
Make std::scoped_allocator_adaptor's OUTERMOST recursive
Backport from mainline
2016-10-06 Jonathan Wakely <jwakely@redhat.com>
* doc/xml/manual/status_cxx2011.xml: Update status.
* doc/html/manual/status.html: Regenerate.
* include/std/scoped_allocator (__outer_allocator_t, __outermost_type):
New helpers for recursive OUTERMOST.
(__outermost): Use __outermost_type::_S_outermost.
(__do_outermost, scoped_allocator_adaptor::__outermost_type): Remove.
(scoped_allocator_adaptor::__outermost_alloc_traits): Use new
__outermost_type helper.
(scoped_allocator_adaptor::_Constructible): New alias template.
(scoped_allocator_adaptor::scoped_allocator_adaptor<_Outer2>):
Constrain template constructors.
* testsuite/20_util/scoped_allocator/3.cc: New test.
* testsuite/20_util/scoped_allocator/outermost.cc: New test.
Georg-Johann Lay [Tue, 22 Aug 2017 10:32:36 +0000 (10:32 +0000)]
backport: re PR lto/81487 ([mingw32] ld.exe: error: asprintf failed)
lto-plugin/
Backport from 2017-07-26 gcc-7-branch r250562.
PR lto/81487
* lto-plugin.c (claim_file_handler): Use xasprintf instead of
asprintf.
[hi!=0]: Swap hi and lo arguments supplied to xasprintf.
gcc/
Backport from 2017-07-26 gcc-7-branch r250562.
PR 81487
* tree-ssa-structalias.c (alias_get_name): Use xasprintf instead
of asprintf.
Georg-Johann Lay [Tue, 22 Aug 2017 09:48:48 +0000 (09:48 +0000)]
backport: re PR target/79883 (avr i18n: untranslated "interrupt" or "signal")
gcc/
Backport from 2016-06-15 trunk r237486.
Backport from 2017-07-12 trunk r250156.
PR target/79883
PR target/67353
* config/avr/avr.c (avr_set_current_function): Warn misspelled ISR
only if -Wmisspelled-isr is on. In diagnostic messages: Quote
keywords and (parts of) identifiers.
[WITH_AVRLIBC]: Warn functions named "ISR", "SIGNAL" or "INTERUPT".
* doc/invoke.texi (AVR Options) <-Wmisspelled-isr>: Document.
Georg-Johann Lay [Tue, 22 Aug 2017 09:29:30 +0000 (09:29 +0000)]
backport: re PR target/80462 ([avr] Incorrect "warning: uninitialized variable 'xxx' put into program memory area" for identical strings)
gcc/
Backport from 2017-04-19 trunk r246997.
PR target/80462
* config/avr/avr.c (tree.h): Include it.
(hash-table.h): Include it.
(hash-set.h): Include it.
(symtab.h): Include it.
(inchash.h): Include it.
(function.h): Include it.
(hash-map.h): Include it.
(plugin-api.h): Include it.
(ipa-ref.h): Include it.
(cgraph.h): Include it.
(avr_encode_section_info): Don't warn for uninitialized progmem
variable if it's just an alias.
Backport from 2017-07-12 trunk r250151.
PR target/81407
* config/avr/avr.c (avr_encode_section_info)
[progmem && !TREE_READONLY]: Error if progmem object needs
constructing.
Georg-Johann Lay [Tue, 22 Aug 2017 08:40:15 +0000 (08:40 +0000)]
backport: re PR target/81910 ([avr] ICE with "address" attribute on type)
gcc/
Backport from 2017-08-22 trunk r251256.
PR target/81910
* config/avr/avr.c (avr_handle_addr_attribute): Early return if
not VAR_P. Filter attribute warnings with OPT_Wattributes.
(avr_attribute_table) <io, io_low, address>: Initialize
.decl_required with true.
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