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  1. 13 Jun, 2017 11 commits
  3. 12 Jun, 2017 22 commits
    • runtime: ignore _Gscan bit when checking status in CgocallDone · a282a875 
          
    Also always access the atomicstatus field atomically.
    
    The effect of not checking the _Gscan bit is that if the GC decides to
    scan the stack just as the goroutine is leaving the system call, the
    goroutine might fail to call exitsyscall.  Then then typically causes
    a runtime assertion failure later on.  If we do call exitsyscall as we
    should, it will stall (in casgstatus) until the _Gscan bit is cleared.
    
    No separate test.  I've observed causing sporadic failures running the
    misc/cgo tests, but we don't currently have a way to run those
    routinely for gccgo.  I should fix that.
    
    Reviewed-on: https://go-review.googlesource.com/45392

From-SVN: r249138
      Ian Lance Taylor committed
    • Finish implementing P0426R1 "Constexpr for std::char_traits" for C++17 · b51483f4 
      As discussed in PR c++/80265 ("__builtin_{memcmp,memchr,strlen} are
not usable in constexpr functions"), use __builtin_constant_p to tell
whether we can defer to a constexpr algorithm.

I used __always_inline__ just to be thorough.  It isn't really really
necessary as far as I could determine.

Changes like these:

	 if (__n == 0)
	   return 0;
 -	return wmemcmp(__s1, __s2, __n);
 +	else
 +	  return wmemcmp(__s1, __s2, __n);

are necessary otherwise G++ complains that we're calling a
non-constexpr function, which looks like a a manifestation of PR67026
to me.

libstdc++-v3:
2017-06-12  Pedro Alves  <palves@redhat.com>

	* doc/xml/manual/status_cxx2017.xml: Update C++17 constexpr
	char_traits status.
	* doc/html/*: Regenerate.

	* include/bits/char_traits.h (_GLIBCXX_ALWAYS_INLINE): Define if
	not already defined.
	(__cpp_lib_constexpr_char_traits): Uncomment.
	(__constant_string_p, __constant_char_array_p): New.
	(std::char_traits<char>, std::char_traits<wchar_t>): Add
	_GLIBCXX17_CONSTEXPR on compare, length and find and use
	__constant_string_p, __constant_char_array_p and
	__builtin_constant_p to defer to __gnu_cxx::char_traits at compile
	time.

	* testsuite/21_strings/char_traits/requirements/
	constexpr_functions_c++17.cc: Uncomment
	__cpp_lib_constexpr_char_traits tests.  Uncomment
	test_compare<char>, test_length<char>, test_find<char>,
	test_compare<wchar_t>, test_length<wchar_t> and test_find<wchar_t>
	static_assert tests.

From-SVN: r249137
      Pedro Alves committed
    • stl_tree.h (_Rb_tree_impl()): Restore _Node_allocator default init. · 07cfc2d7 
      2017-06-12  François Dumont  <fdumont@gcc.gnu.org>

	* include/bits/stl_tree.h (_Rb_tree_impl()): Restore _Node_allocator
	default init.
	* testsuite/util/testsuite_allocator.h
	(__gnu_test::default_init_allocator<>) New.
	* testsuite/23_containers/set/allocator/default_init.cc: New.
	* testsuite/23_containers/map/allocator/default_init.cc: New.

From-SVN: r249136
      François Dumont committed
    • More refinements to fixing sparc's PR target/80968. · 6d1ea02a 
      gcc/

	PR target/80968
	* config/sparc/sparc.md (return expander): Emit frame blockage if
	function uses alloca.

From-SVN: r249134
      David S. Miller committed
    • compiler: avoid orphaning Bexpressions when processing conversions · 20d5c873 
          
    The method Type_conversion_expression::do_get_backend was (in some
    circumstances) creating a Bexpression for the source expression of the
    conversion and then throwing it away before using it. Fix up this
    method to insure that the call to get_backend() on the source
    expression is only made when the result will be used.
    
    Reviewed-on: https://go-review.googlesource.com/45350

From-SVN: r249131
      Ian Lance Taylor committed
    • PR libstdc++/55917 do not handle exceptions in std::thread · 754d67d5 
      	PR libstdc++/55917
	* src/c++11/thread.cc (execute_native_thread_routine): Remove
	try-block so that exceptions propagate out of the thread and terminate
	is called by the exception-handling runtime.
	(execute_native_thread_routine_compat): Likewise.
	* testsuite/30_threads/thread/cons/terminate.cc: New.

From-SVN: r249130
      Jonathan Wakely committed
    • split-1.c: Require split_stack, don't require freorder. · 196ed8ea 
      	* gcc.dg/tree-prof/split-1.c: Require split_stack, don't require
	freorder.  Update comment to explain test.

From-SVN: r249129
      Ian Lance Taylor committed
    • Fix pessimistic DImode handling in combine.c:make_field_assignment · e701e0b9 
      The make_field_assignment code:

      src = force_to_mode (src, mode,
		       GET_MODE_PRECISION (mode) >= HOST_BITS_PER_WIDE_INT
		       ? HOST_WIDE_INT_M1U
		       : (HOST_WIDE_INT_1U << len) - 1,
		       0);

would ignore the field length len for DImode, even though DImode can be
handled using HWIs.  I think the code should be testing len instead.

2017-06-12  Richard Sandiford  <richard.sandiford@linaro.org>

gcc/
	* combine.c (make_field_assignment): Check len rather than the mode
	precision when calling force_to_mode.

From-SVN: r249128
      Richard Sandiford committed
    • inline-lrint_1.c: Broaden regexp. · 64ff4f60 
      
2017-06-12  Tamar Christina  <tamar.christina@arm.com>

	* gcc.target/aarch64/inline-lrint_1.c: Broaden regexp.
	* gcc.target/aarch64/inline-lrint_2.c: Likewise.
	* gcc.target/aarch64/no-inline-lrint_1.c: Likewise.
	* gcc.target/aarch64/no-inline-lrint_2.c: Likewise.

From-SVN: r249127
      Tamar Christina committed
    • sdiv_costs_1.c: Require arm_v8_vfp_ok. · 5ed2fdfe 
      2017-06-12  Tamar Christina  <tamar.christina@arm.com>

	* gcc.target/arm/sdiv_costs_1.c: Require arm_v8_vfp_ok.

From-SVN: r249125
      Tamar Christina committed
    • Support multilibs and devices that see flash in RAM address range. · 3266ddb3 
      gcc/
	Support multilibs and devices that see flash in RAM address range.

	PR target/81072
	* config/avr/avr-arch.h (avr_arch_id) <ARCH_AVRXMEGA3>: New enum.
	(avr_mcu_t) <flash_pm_offset>: New field.
	(avr_device_specific_features) <AVR_ISA_RCALL>: New enum.
	* config/avr/avr.h (AVR_SHORT_CALLS): New define.
	(AVR_HAVE_JMP_CALL): Don't set if AVR_SHORT_CALLS.
	(AVR_TINY_PM_OFFSET): Remove macro.
	* config/avr/avr.opt (-mshort-calls): New option.
	* config/avr/gen-avr-mmcu-specs.c (print_mcu)
	[*self_spec]: Add / remove -mshort-calls depending on AVR_ISA_RCALL.
	* config/avr/avr-c.c (avr_cpu_cpp_builtins)
	<__AVR_SHORT_CALLS__>: Built-in define if AVR_SHORT_CALLS.
	<__AVR_HAVE_JMP_CALL__>: Use AVR_HAVE_JMP_CALL as condition
	instead of avr_arch->have_jmp_call.
	<__AVR_PM_BASE_ADDRESS__>: Built-in define if avr_arch->flash_pm_offset.
	[AVR_TINY] <__AVR_TINY_PM_BASE_ADDRESS__>: Use
	avr_arch->flash_pm_offset to define.
	* config/avr/avr-devices.c (avr_arch_types): Add initializers for
	new field flash_pm_offset.  Add entry for avrxmega3.
	(avr_texinfo): Add entry for avrxmega3.
	* config/avr/avr-mcus.def: Add entries for: avrxmega3,
	attiny212, attiny214,
	attiny412, attiny414, attiny416, attiny417,
	attiny814, attiny816, attiny817,
	attiny1614, attiny1616, attiny1617,
	attiny3214, attiny3216, attiny3217.
	* config/avr/avr.c (avr_assemble_integer)[AVR_TINY]: Use
	avr_arch->flash_pm_offset instead of AVR_TINY_PM_OFFSET.
	(avr_print_operand_address) [AVR_TINY]: Same.
	(avr_asm_init_sections) <readonly_data_section>: Only patch
	callback if avr_arch->flash_pm_offset = 0.
	(avr_asm_named_section) <avr_need_copy_data_p>: Skip setting it
	for rodata if avr_arch->flash_pm_offset != 0.
	(avr_encode_section_info) [AVR_TINY]: Adjust comment.
	* config/avr/genmultilib.awk (dir_rcall, opt_rcall): New vars.
	(opts) [AVR_ISA_RCALL]: Append opt_rcall.
	(m_options): Append opt_rcall.
	(m_dirnames): Append dir_rcall.
	* config/avr/t-multilib: Regenerate.
	* configure.ac [target=avr]: Check whether avrxmega3 default
	linker description file works as needed.
	* configure: Regenerate.
	* doc/avr-mmcu.texi: Regenerate.
	* doc/invoke.texi (AVR Options) <-mshort-calls>: Document it.
	<__AVR_ARCH__>: Document avrxmega3 and 103.
	<__AVR_HAVE_JMP_CALL__>: Adjust documentation.
	<__AVR_SHORT_CALLS__>: Document it.
	<__AVR_PM_BASE_ADDRESS__>: Document it.
	* doc/extend.texi (AVR Options) <-mshort-calls>: Document it.
	(AVR Variable Attributes) <progmem>: Document this is
	not needed for avrxmega3.
	(AVR Named Address Spaces) <__flash>: Dito.

From-SVN: r249124
      Georg-Johann Lay committed
    • * cgraph.c (cgraph_node::dump): Complain about profile insanities. · 7c41b76e 
      From-SVN: r249123
      Jan Hubicka committed
    • sdiv_costs_1.c: Disable on softfloat. · 6cddb61c 
      2017-06-12  Tamar Christina  <tamar.christina@arm.com>

	* gcc.target/arm/sdiv_costs_1.c: Disable on softfloat.

From-SVN: r249122
      Tamar Christina committed
    • config.gcc (*-*-vxworks*): Set use_gcc_stdint to "provide". · a476498c 
      2017-06-12  Doug Rupp  <rupp@adacore.com>

	gcc/
	* config.gcc (*-*-vxworks*): Set use_gcc_stdint to "provide".
	Append vxworks-stdint.h to the tm_file list.
	* config/vxworks-stdint.h: New file.

	fixincludes/
	* inclhack.def (AAB_vxworks_stdint): Remove hack.
	* fixincl.x: Regenerate.

From-SVN: r249121
      Doug Rupp committed
    • Create an extra BB in profile-generate (PR tree-optimization/81041). · c9c15e27 
      2017-06-12  Martin Liska  <mliska@suse.cz>

	PR tree-optimization/81041
	* tree-profile.c (gimple_gen_ic_func_profiler):
	Create an extra BB in profile-generate
	(gimple_gen_time_profiler): Likewise.

From-SVN: r249120
      Martin Liska committed
    • re PR bootstrap/80897 (gnat bootstrap broken on SPARC64/Linux) · 3b387bff 
      	PR bootstrap/80897
	* exp_ch3.adb (Make_Predefined_Primitive_Specs): Use Positive index.

From-SVN: r249119
      Eric Botcazou committed
    • rs6000: Remove e500.h from config.gcc some more · c725f69c 
      
	* config.gcc: Remove rs6000/e500.h from tm_file for all targets.

From-SVN: r249117
      Segher Boessenkool committed
    • re PR ada/81070 (build failure for s-intrr.adb) · cdf2dd41 
      	PR ada/81070
	* s-interr-hwint.adb: Reinstate.
	* gcc-interface/Makefile.in (RTEMS): Use it again.

From-SVN: r249115
      Eric Botcazou committed
    • re PR tree-optimization/81003 (ICE: tree check: expected ssa_name, have… · aebce396 
      re PR tree-optimization/81003 (ICE: tree check: expected ssa_name, have integer_cst in optimize_range_tests_to_bit_test, at tree-ssa-reassoc.c:2782)

	PR tree-optimization/81003
	* tree-ssa-reassoc.c (force_into_ssa_name): New function.
	(update_range_test): Use it instead of force_gimple_operand_gsi.

	* gcc.c-torture/compile/pr81003.c: New test.

From-SVN: r249114
      Jakub Jelinek committed
    • re PR tree-optimization/81053 (ICE on valid code at -O3 on x86_64-linux-gnu: in… · 3fd7fe21 
      re PR tree-optimization/81053 (ICE on valid code at -O3 on x86_64-linux-gnu: in as_a, at is-a.h:192)

2017-06-12  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/81053
	* tree-vect-loop.c (vect_is_simple_reduction): Handle PHI
	with backedge value not defined in loop.  Simplify def stmt
	compute.

	* gcc.dg/torture/pr81053.c: New testcase.

From-SVN: r249113
      Richard Biener committed
    • elf.c (backtrace_initialize): Always set *fileline_fn. · d1609a23 
      	* elf.c (backtrace_initialize): Always set *fileline_fn.
	* ttest.c: New file.
	* btest.c: Move support functions into testlib.c.  Change calls to
	check to pass file name.
	* testlib.c: New file, copied from (part of) btest.c.
	* testlib.h: New file, declarations for testlib.c.
	* edtest.c: Use testlib.h and testlib.c.
	* configure.ac: Test for -pthread, set HAVE_PTHREAD conditional.
	* Makefile.am (btest_SOURCES): Add testlib.c.
	(edtest_SOURCES): Likewise.
	(CHECK_PROGRAMS): Add ttest if HAVE_PTHREAD.
	(ttest_SOURCES, ttest_CFLAGS, ttest_LDADD): Define.
	* configure, Makefile.in: Rebuild.

From-SVN: r249111
      Ian Lance Taylor committed
    • Daily bump. · 1e7a4be3 
      From-SVN: r249110
      GCC Administrator committed
  5. 11 Jun, 2017 5 commits
  7. 10 Jun, 2017 2 commits