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  1. 27 Nov, 2017 10 commits
    • re PR c++/81675 (attribute(noreturn) of destructor in :? not honored) · cb358080 
      	PR c++/81675
	* cp-gimplify.c (cp_fold) <case COND_EXPR>: Don't return immediately
	for VOID_TYPE_P COND_EXPRs, instead fold the operands and if op0 is
	INTEGER_CST, ensure that both op1 and op2 are non-NULL and fall
	through into normal folding, otherwise just rebuild x if any op
	changed.

	* g++.dg/warn/pr81675.C: New test.

From-SVN: r255167
      Jakub Jelinek committed
    • Fix UB in hash-map.h · 04f91503 
      bootstrap-ubsan shows:
  gcc/hash-map.h:277:19: runtime error: member access within null pointer of type 'struct hash_map'

Fix the issue by returning early.

From-SVN: r255166
      Markus Trippelsdorf committed
    • cfgloop.h (struct loop): Document usage of USHRT_MAX for unroll. · ff27462e 
      	* cfgloop.h (struct loop): Document usage of USHRT_MAX for unroll.
	* loop-unroll.c (decide_unroll_constant_iterations): Implement it.
	(decide_unroll_runtime_iterations): Likewise.
	(decide_unroll_stupid): Likewise.

From-SVN: r255165
      Eric Botcazou committed
    • Fix code generation for buildtin_longjmp with CET. · 39335d14 
      According to the description of  inssp instruction from Intel CET it
adusts the shadow stack pointer (ssp) only by value in the range of
[0..255]. As a number of adjustment could be greater than 255 there
should be a loop generated to adjust ssp.

gcc/
	* config/i386/i386.md: Add a loop with incssp.
	* testsuite/gcc.target/i386/cet-sjlj-1.c: Fix test.
	* testsuite/gcc.target/i386/cet-sjlj-4.c: Likewise.

From-SVN: r255164
      Igor Tsimbalist committed
    • [PR 81248] Fix ipa-sra size check · be025a2d 
      2017-11-27  Martin Jambor  <mjambor@suse.cz>

	PR tree-optimization/81248
	* tree-sra.c (splice_param_accesses): Remove size check.
	(decide_one_param_reduction): Fix size check.
	* gimple-pretty-print.c (dump_profile): Silence warning.
	* params.def (PARAM_IPA_SRA_PTR_GROWTH_FACTOR): Adjust description.

	testsuite/
	* g++.dg/ipa/pr81248.C: New test.
	* gcc.dg/tree-ssa/ssa-pre-31.c: Disable IPA-SRA.
	* gcc/testsuite/gcc.dg/ipa/ipcp-cstagg-2.c: Likewise.

From-SVN: r255163
      Martin Jambor committed
    • null-8.C (bar): New function. · 8cb71598 
      	* g++.dg/ubsan/null-8.C (bar): New function.
	(foo): Use bar instead of __builtin_printf.

From-SVN: r255162
      Jakub Jelinek committed
    • re PR debug/81307 (g++.dg/debug/debug9.C -gstabs FAILs) · b8cb3096 
      	PR debug/81307
	* dbxout.c (lastlineno): New variable.
	(dbx_debug_hooks): Use dbxout_switch_text_section as
	switch_text_section debug hook.
	(dbxout_function_end): Switch to current_function_section
	rather than function_section.  If crtl->has_bb_partition,
	output just one N_FUN, depending on in_cold_section_p.
	(dbxout_source_line): Remember last lineno in lastlineno.
	(dbxout_switch_text_section): New function.
	(dbxout_function_decl): Adjust dbxout_block caller.
	(dbx_block_with_cold_children): New function.
	(dbxout_block): Return true if any LBRAC/RBRAC have been
	emitted.  Use dbx_block_with_cold_children at depth == 0
	in second partition.  Add PARENT_BLOCKNUM argument, pass
	it optionally adjusted to children.  Output LBRAC/RBRAC
	around recursive call only if the block is in the current
	partition, if not and anything was output, emit empty
	range LBRAC/RBRAC.
	* final.c (final_scan_insn): Compute cold_function_name
	before calling switch_text_section debug hook.  Call
	that hook even if dwarf2out_do_frame if not emitting
	dwarf debug info.

	* g++.dg/debug/debug9.C: Remove -fno-reorder-blocks-and-partition
	workaround.

From-SVN: r255161
      Jakub Jelinek committed
    • re PR target/83100 (powerpc: internal compiler error: in get_variable_section,… · 9adeb64a 
      re PR target/83100 (powerpc: internal compiler error: in get_variable_section, at varasm.c:1150 with -fdata-sections)

	PR target/83100
	* varasm.c (bss_initializer_p): Return true for DECL_COMMON
	TREE_READONLY decls.

	* gcc.dg/pr83100-1.c: New test.
	* gcc.dg/pr83100-2.c: New test.
	* gcc.dg/pr83100-3.c: New test.
	* gcc.dg/pr83100-4.c: New test.

From-SVN: r255160
      Jakub Jelinek committed
    • Fix PR82488 - signed integer overflow in expr.c · 99282f81 
      bootstrap-ubsan shows:
 gcc/expr.c:4103:17: runtime error: signed integer overflow: 0 - -9223372036854775808 cannot be represented in type 'long int'

Fix by handling the saw_unknown case earlier.

	PR rtl-optimization/82488
	* expr.c (fixup_args_size_notes): Avoid signed integer overflow.

diff --git a/gcc/expr.c b/gcc/expr.c
index ee07de5aaa44..e9d8555c9452 100644
--- a/gcc/expr.c
+++ b/gcc/expr.c
@@ -4100,10 +4100,13 @@ fixup_args_size_notes (rtx_insn *prev, rtx_insn *last, int end_args_size)
       if (STACK_GROWS_DOWNWARD)
 	this_delta = -(unsigned HOST_WIDE_INT) this_delta;

-      args_size -= this_delta;
+      if (saw_unknown)
+	args_size = INT_MIN;
+      else
+	args_size -= this_delta;
     }

-  return saw_unknown ? INT_MIN : args_size;
+  return args_size;
 }

 #ifdef PUSH_ROUNDING
--
Markus

From-SVN: r255159
      Markus Trippelsdorf committed
    • Daily bump. · 62e8530c 
      From-SVN: r255158
      GCC Administrator committed
  3. 26 Nov, 2017 3 commits
    • i386.c (processor_target_table): Add skylake_cost for skylake-avx512. · c234d831 
      	* 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
      Uros Bizjak committed
    • Plugin support on Windows/MinGW · 8c7dbea9 
      config/ChangeLog:
2017-11-14 Boris Kolpackov  <boris@codesynthesis.com>

	* gcc-plugin.m4: Add support for MinGW.

gcc/ChangeLog:
2017-11-14 Boris Kolpackov  <boris@codesynthesis.com>

	* plugin.c (add_new_plugin): Use platform-specific library extensions.
	(try_init_one_plugin): Alternative implementation for MinGW.
	* Makefile.in (plugin_implib): New.
	(gengtype-lex.c): Fix broken AIX workaround.
	* configure: Regenerate.
	* doc/plugins.texi: Document support for MinGW.

gcc/c/ChangeLog:
2017-11-14 Boris Kolpackov  <boris@codesynthesis.com>

	* Make-lang.in (c.install-plugin): Install backend import library.

gcc/cp/ChangeLog:
2017-11-14 Boris Kolpackov  <boris@codesynthesis.com>

	* Make-lang.in (c++.install-plugin): Install backend import library.

libcc1/ChangeLog:
2017-11-14 Boris Kolpackov  <boris@codesynthesis.com>

	* configure: Regenerate.

From-SVN: r255154
      Boris Kolpackov committed
    • Daily bump. · 44dfb822 
      From-SVN: r255153
      GCC Administrator committed
  5. 25 Nov, 2017 4 commits
  7. 24 Nov, 2017 14 commits
  9. 23 Nov, 2017 9 commits
    • [ARM] Fix Dot Product NEON intrinsics · 117e6b50 
      2017-11-24  Christophe Lyon  <christophe.lyon@linaro.org>

	* config/arm/arm_neon.h: Fix pragma GCC push_options before
	vdot_u32.

From-SVN: r255126
      Christophe Lyon committed
    • re PR ada/83091 (ICE with -g in arm-eabi compilation) · 773076a5 
      	PR ada/83091
	* gcc-interface/decl.c (gnat_to_gnu_entity): Do not build a variant
	type for the implementation type of a packed array.

From-SVN: r255125
      Eric Botcazou committed
    • Add [[nodiscard]] attribute to C++17 components · d69f1ec7 
      	* include/bits/fs_path.h (path::empty): Add nodiscard attribute.
	* include/bits/range_access.h (empty): Likewise.
	* include/std/string_view (basic_string_view::empty): Likewise.
	* testsuite/21_strings/basic_string_view/capacity/empty_neg.cc: New
	test.
	* testsuite/24_iterators/range_access_cpp17_neg.cc: New test.
	* testsuite/27_io/filesystem/path/query/empty_neg.cc: New test.

From-SVN: r255124
      Jonathan Wakely committed
    • PR libstdc++/83134 Ensure std::__not_ converts B::value to bool · 4b9840f2 
      	PR libstdc++/83134
	* include/std/type_traits (__not_): Explicitly convert to bool.
	* testsuite/20_util/declval/requirements/1_neg.cc: Adjust dg-error.
	* testsuite/20_util/logical_traits/83134.cc: New test.
	* testsuite/20_util/make_signed/requirements/typedefs_neg.cc: Adjust
	dg-error.
	* testsuite/20_util/make_unsigned/requirements/typedefs_neg.cc:
	Likewise.

From-SVN: r255122
      Jonathan Wakely committed
    • Enable VBMI2 support [3/7] · de860379 
      gcc/
	config/i386/avx512vbmi2intrin.h (_mm512_mask_expand_epi8,
	_mm512_maskz_expand_epi8, _mm512_mask_expandloadu_epi8,
	_mm512_maskz_expandloadu_epi8, _mm512_mask_expand_epi16,
	_mm512_maskz_expand_epi16, _mm512_mask_expandloadu_epi16,
	_mm512_maskz_expandloadu_epi16): New intrinsics.
	config/i386/avx512vbmi2vlintrin.h (_mm_mask_expand_epi8,
	_mm_maskz_expand_epi8, _mm_mask_expandloadu_epi8,
	_mm_maskz_expandloadu_epi8, _mm_mask_expand_epi16,
	_mm_maskz_expand_epi16, _mm_mask_expandloadu_epi16,
	_mm_maskz_expandloadu_epi16, _mm256_mask_expand_epi16,
	_mm256_maskz_expand_epi16, _mm256_mask_expandloadu_epi16,
	_mm256_maskz_expandloadu_epi16, _mm256_mask_expand_epi8,
	_mm256_maskz_expand_epi8, _mm256_mask_expandloadu_epi8,
	_mm256_maskz_expandloadu_epi8): New intrinsics.
	config/i386/i386-builtin-types.def (V64QI_FTYPE_PCV64QI_V64QI_UDI,
	V32HI_FTYPE_PCV32HI_V32HI_USI, V32QI_FTYPE_PCV32QI_V32QI_USI,
	V16HI_FTYPE_PCV16HI_V16HI_UHI, V16QI_FTYPE_PCV16QI_V16QI_UHI,
	V8HI_FTYPE_PCV8HI_V8HI_UQI): New types.
	config/i386/i386.c (ix86_expand_special_args_builtin): Use new types.
	config/i386/sse.md (VI248_VLBW): New iterator.
	(expand<mode>_mask, expand<mode>_maskz): New patterns.

gcc/testsuite/
	gcc.target/i386/avx512f-vpexpandb-1.c: New test.
	gcc.target/i386/avx512f-vpexpandb-2.c: Ditto.
	gcc.target/i386/avx512f-vpexpandw-1.c: Ditto.
	gcc.target/i386/avx512f-vpexpandw-2.c: Ditto.
	gcc.target/i386/avx512vl-vpexpandb-1.c: Ditto.
	gcc.target/i386/avx512vl-vpexpandb-2.c: Ditto.
	gcc.target/i386/avx512vl-vpexpandw-1.c: Ditto.
	gcc.target/i386/avx512vl-vpexpandw-2.c: Ditto.

From-SVN: r255121
      Julia Koval committed
    • Enable VBMI2 support [2/7] · 11cca3ca 
      gcc/
	config.gcc (avx512vbmi2intrin.h, avx512vbmi2vlintrin): New headers.
	config/i386/avx512vbmi2intrin.h (_mm512_mask_compress_epi8,
	_mm512_maskz_compress_epi8, _mm512_mask_compressstoreu_epi8,
	_mm512_mask_compress_epi16, _mm512_maskz_compress_epi16,
	_mm512_mask_compressstoreu_epi16): New.
	config/i386/avx512vbmi2vlintrin.h (_mm_mask_compress_epi8,
	_mm_maskz_compress_epi8, _mm256_mask_compressstoreu_epi16,
	_mm_mask_compress_epi16, _mm_maskz_compress_epi16,
	_mm256_mask_compress_epi16, _mm256_maskz_compress_epi16,
	_mm_mask_compressstoreu_epi8, _mm_mask_compressstoreu_epi16,
	_mm256_mask_compress_epi8, _mm256_maskz_compress_epi8,
	_mm256_mask_compressstoreu_epi8): New.
	config/i386/i386-builtin-types.def (VOID_FTYPE_PV64QI_V64QI_UDI,
	VOID_FTYPE_PV32HI_V32HI_USI, VOID_FTYPE_PV32QI_V32QI_USI,
	VOID_FTYPE_PV16QI_V16QI_UHI, VOID_FTYPE_PV16HI_V16HI_UHI,
	VOID_FTYPE_PV8HI_V8HI_UQI): New types.
	config/i386/i386-builtin.def (__builtin_ia32_compressqi512_mask,
	__builtin_ia32_compresshi512_mask, __builtin_ia32_compressqi256_mask,
	__builtin_ia32_compressqi128_mask, __builtin_ia32_compresshi256_mask,
	__builtin_ia32_compresshi128_mask,
	__builtin_ia32_compressstoreuqi512_mask,
	__builtin_ia32_compressstoreuhi512_mask,
	__builtin_ia32_compressstoreuqi256_mask,
	__builtin_ia32_compressstoreuqi128_mask,
	__builtin_ia32_compressstoreuhi256_mask,
	__builtin_ia32_compressstoreuhi128_mask): New builtins.
	config/i386/i386.c (ix86_init_mmx_sse_builtins): Create special args
	array for flags2.
	(ix86_expand_special_args_builtin): Handle new types.
	(s4fma_expand): Handle new builtin array.
	config/i386/immintrin.h: Include new headers.
	config/i386/sse.md (VI12_AVX512VLBW): New iterator.
	(compress<mode>_mask, compressstore<mode>_mask): New patterns.

gcc/testsuite/
	gcc.target/i386/avx512-check.h: Handle AVX512VBMI2 bit.
	gcc.target/i386/avx512f-vpcompressb-1.c: New test.
	gcc.target/i386/avx512f-vpcompressb-2.c: Ditto.
	gcc.target/i386/avx512f-vpcompressw-1.c: Ditto.
	gcc.target/i386/avx512f-vpcompressw-2.c: Ditto.
	gcc.target/i386/avx512vl-vpcompressb-1.c: Ditto.
	gcc.target/i386/avx512vl-vpcompressb-2.c: Ditto.
	gcc.target/i386/avx512vl-vpcompressw-1.c: Ditto.
	gcc.target/i386/avx512vl-vpcompressw-2.c: Ditto.
	gcc.target/i386/i386.exp (check_effective_target_avx512vbmi2): New.

From-SVN: r255119
      Julia Koval committed
    • rs6000.c (rs6000_gimple_fold_builtin): Formatting fixes. · cd761692 
      	* config/rs6000/rs6000.c (rs6000_gimple_fold_builtin): Formatting
	fixes.  Declare temp and g variables at the top in order to avoid
	{} in most of the cases.

From-SVN: r255118
      Jakub Jelinek committed
    • parser.c (cp_parser_omp_declare): Change return type to bool from void, return… · 9c378aa9 
      parser.c (cp_parser_omp_declare): Change return type to bool from void, return true for declare simd.

	* parser.c (cp_parser_omp_declare): Change return type to bool from
	void, return true for declare simd.
	(cp_parser_pragma): Return cp_parser_omp_declare returned value
	rather than always false.

From-SVN: r255117
      Jakub Jelinek committed
    • c-parser.c (c_parser_omp_declare_simd): Reject declare simd in pragma_stmt context. · 41521dee 
      	* c-parser.c (c_parser_omp_declare_simd): Reject declare simd in
	pragma_stmt context.

	* gcc.dg/gomp/declare-simd-1.c (f9): Remove.
	* gcc.dg/gomp/declare-simd-5.c: New test.

From-SVN: r255116
      Jakub Jelinek committed