re PR c++/79005 (Use of a captured variable within nested generic lambdas provokes internal compiler error.)

2017-10-02  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/79005
	* g++.dg/cpp1y/lambda-generic-79005.C: New.

From-SVN: r253368

	PR ada/82384
	* libgnarl/s-linux__x32.ads (suseconds_t): New subtype.
	(time_t): Change from derived type to subtype.
	(timeval): Use suseconds_t for tv_usec.
	* libgnarl/s-osinte__x32.adb (To_Timespec): Remove use type clause.

From-SVN: r253366

re PR fortran/82312 ([OOP] Pointer assignment to component of class variable results wrong vptr for the variable.)

2017-10-02  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/82312
	* resolve.c (gfc_resolve_code): Simplify condition for class
	pointer assignments becoming regular assignments by asserting
	that only class valued targets are permitted.
	* trans-expr.c (trans_class_pointer_fcn): New function using a
	block of code from gfc_trans_pointer_assignment.
	(gfc_trans_pointer_assignment): Call the new function. Tidy up
	a minor whitespace issue.

2017-10-02  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/82312
	* gfortran.dg/typebound_proc_36.f90 : New test.

From-SVN: r253362

gcc/
	PR target/80210
	* config/rs6000/rs6000.c (rs6000_option_override_internal): Rewrite
	function to not use the have_cpu variable.  Do not set cpu_index,
	rs6000_cpu_index or rs6000_tune_index if we end up using TARGET_DEFAULT
	or the default cpu.
	(rs6000_valid_attribute_p): Remove duplicate initializations of
	old_optimize and func_optimize.
	(rs6000_pragma_target_parse): Call rs6000_activate_target_options ().
	(rs6000_activate_target_options): Make global.
	* config/rs6000/rs6000-protos.h (rs6000_activate_target_options): Add
	prototype.

gcc/testsuite/
	PR target/80210
	* gcc.target/powerpc/pr80210-2.c: New test.

From-SVN: r253358

tree-dfa.c (get_ref_base_and_extent): Set *pmax_size to -1 if *poffset + *pmax_size overflows in HOST_WIDE_INT.

	* tree-dfa.c (get_ref_base_and_extent): Set *pmax_size to -1
	if *poffset + *pmax_size overflows in HOST_WIDE_INT.
	Set *poffset to 0 and *psize and *pmax_size to -1 if
	*poffset + *psize overflows in HOST_WIDE_INT.

	* gcc.dg/pr82389.c: New test.

From-SVN: r253357

	PR tree-optimization/82387
	PR tree-optimization/82388
	PR tree-optimization/82389
	* tree-ssa-dse.c (dse_classify_store): Test byte_tracking_enabled
	instead of live_bytes non-NULL.

	* gcc.c-torture/compile/pr82389.c: New test.
	* gcc.c-torture/execute/pr82387.c: New test.
	* gcc.c-torture/execute/pr82388.c: New test.

From-SVN: r253356

This adds the integral overloads of std::to_chars and std::from_chars,
including the changes made by P0682R0. Support for floating point types
is absent.

	* include/Makefile.am: Add new <charconv> header.
	* include/Makefile.in: Regenerate.
	* include/precompiled/stdc++.h: Include <charconv>.
	* include/std/charconv: New file.
	(to_chars_result, to_chars, from_chars_result, from_chars): Define.
	* testsuite/20_util/from_chars/1.cc: New test.
	* testsuite/20_util/from_chars/1_neg.cc: New test.
	* testsuite/20_util/from_chars/2.cc: New test.
	* testsuite/20_util/from_chars/requirements.cc: New test.
	* testsuite/20_util/to_chars/1.cc: New test.
	* testsuite/20_util/to_chars/1_neg.cc: New test.
	* testsuite/20_util/to_chars/2.cc: New test.
	* testsuite/20_util/to_chars/requirements.cc: New test.

From-SVN: r253353

	* libbacktrace/backtrace-rename.h (backtrace_uncompress_zdebug):
	Define.

From-SVN: r253351

2017-10-02  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/79180
	* g++.dg/cpp0x/lambda/lambda-nested8.C: New.
	* g++.dg/torture/pr79180.C: Likewise.

	PR c++/71386
	* g++.dg/cpp1y/lambda-generic-nested1.C: New.

From-SVN: r253350

	contrib/
	* gcc_update (files_and_dependencies): Handle libbacktrace.

From-SVN: r253346

	libbacktrace/
	PR other/67165
	* Makefile.am: Append the content of clock_gettime_link to
	ztest_LDADD.
	* configure.ac: Test for the case that clock_gettime is in librt.
	* Makefile.in: Regenerate.
	* configure: Likewise.

From-SVN: r253345

	libbacktrace/
	PR other/67165
	* configure.ac: Check for clock_gettime.
	* config.h.in: Regenerate.
	* configure: Likewise.
	* ztest.c (average_time, test_large): Conditionalize test timing
	on clock_gettime availability.

From-SVN: r253344

	PR target/41076
	* confg/avr/avr.md (*iorhi3.ashift8-ext.zerox): Add "r,r,0"
	alternative.

From-SVN: r253343

graphite-isl-ast-to-gimple.c (set_codegen_error): With -fchecking and --param graphite-allow-codegen-errors=0 ICE.

2017-10-02  Richard Biener  <rguenther@suse.de>

	* graphite-isl-ast-to-gimple.c (set_codegen_error): With
	-fchecking and --param graphite-allow-codegen-errors=0 ICE.
	* params.def (PARAM_GRAPHITE_ALLOW_CODEGEN_ERRORS): New param.

	* gcc.dg/graphite/graphite.exp: Add -fdump-tree-graphite-details.
	* gcc.dg/graphite/id-15.c: Adjust for existing codegen errors.
	* gcc.dg/graphite/id-16.c: Likewise.
	* gcc.dg/graphite/pr46168.c: Likewise.
	* gcc.dg/graphite/pr68756.c: Likewise.
	* gcc.dg/graphite/pr69728.c: Likewise.
	* gcc.dg/graphite/pr71575-2.c: Likewise.
	* gcc.dg/graphite/pr77362.c: Likewise.
	* gcc.dg/graphite/pr81373.c: Likewise.
	* gcc.dg/graphite/run-id-pr67700-1.c: Likewise.
	* gfortran.dg/graphite/interchange-1.f: Likewise.
	* gfortran.dg/graphite/pr29581.f90: Likewise.
	* gfortran.dg/graphite/pr42334-1.f: Likewise.
	* gfortran.dg/graphite/pr42393-1.f90: Likewise.
	* gfortran.dg/graphite/pr42393.f90: Likewise.
	* gfortran.dg/graphite/pr47019.f: Likewise.

From-SVN: r253342

The tree wi:: decompose routine wasn't asserting that the requested
precision matched the tree's precision.  This could make a difference
for unsigned trees that are exactly N HWIs wide and that have the upper
bit set, since we then need an extra zero HWI when extending it to wider
precisions (as for wi::to_widest).

This patch adds the assert and fixes the fallout shown by the testsuite.
Go seems to be unaffected.

2017-10-02  Richard Sandiford  <richard.sandiford@linaro.org>

gcc/
	* tree.h (wi::int_traits <const_tree>::decompose): Assert that the
	requested precision matches the type's.
	* calls.c (alloc_max_size): Calculate the new candidate size as
	a widest_int and use wi::to_widest when comparing it with the
	current candidate size.
	* gimple-ssa-warn-alloca.c (pass_walloca::execute): Compare with
	zero rather than integer_zero_node.
	* match.pd: Check for a no-op conversion before using wi::add
	rather than after.  Use tree_to_uhwi when summing small shift
	counts into an unsigned int.

gcc/c-family/
	* c-warn.c (warn_tautological_bitwise_comparison): Use wi::to_widest
	when combining the original unconverted comparison operands.

gcc/cp/
	* constexpr.c (cxx_eval_store_expression): Use wi::to_widest
	when comparing the array bounds with an ARRAY_REF index.

gcc/ada/
	* gcc-interface/decl.c (annotate_value): Use wi::to_widest when
	handling the form (plus/mult (convert @0) @1).

From-SVN: r253341

2017-10-02  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/69977
	* g++.dg/cpp1y/lambda-generic-69977.C: New.

From-SVN: r253340

re PR c++/59991 (Recursive lambda capture in C++1y constexpr function template causes internal compiler error)

2017-10-02  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/59991
	* g++.dg/cpp0x/lambda/lambda-ice23.C: New.

From-SVN: r253339

2017-10-02  Tom de Vries  <tom@codesourcery.com>

	* gcc.c-torture/compile/pr82337.c: Add
	dg-require-effective-target nonlocal_goto.

From-SVN: r253338

ALL_REGS doesn't function as a union class of POINTER_REGS and FP_REGS
since it includes the CC register as well.  REGNO_REG_CLASS (CC_REGNUM)
is NO_REGS, but of course NO_REGS rightly doesn't include CC_REGNUM.

Adding a union class for POINTER+FP allows the RA to use it as the
preferred or alternative class of a pseudo.  It also works as a
union class of GENERAL+FP for modes that aren't allowed in SP.

This is also needed for the SVE port, which adds predicate registers
to the mix.

2017-09-15  Richard Sandiford  <richard.sandiford@linaro.org>
	    Alan Hayward  <alan.hayward@arm.com>
	    David Sherwood  <david.sherwood@arm.com>

gcc/
	PR target/71307
	* config/aarch64/aarch64.h (POINTER_AND_FP_REGS): New reg class.
	(REG_CLASS_NAMES, REG_CLASS_CONTENTS): Update accordingly.
	* config/aarch64/aarch64.c (aarch64_class_max_nregs): Handle
	POINTER_AND_FP_REGS.

gcc/testsuite/
	PR target/71307
	* gcc.target/aarch64/vect_copy_lane_1.c: Remove XFAIL.

Co-Authored-By: Alan Hayward <alan.hayward@arm.com>
Co-Authored-By: David Sherwood <david.sherwood@arm.com>

From-SVN: r253337

2017-10-02  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/82355
	* graphite-isl-ast-to-gimple.c (build_iv_mapping): Also build
	a mapping for the enclosing loop but avoid generating one for
	the loop tree root.
	(copy_bb_and_scalar_dependences): Remove premature codegen
	error on PHIs in blocks duplicated into multiple places.
	* graphite-scop-detection.c
	(scop_detection::stmt_has_simple_data_refs_p): For a loop not
	in the region use it as loop and nest to analyze the DR in.
	(try_generate_gimple_bb): Likewise.
	* graphite-sese-to-poly.c (extract_affine_chrec): Adjust.
	(add_loop_constraints): For blocks in a loop not in the region
	create a dimension with a single iteration.
	* sese.h (gbb_loop_at_index): Remove assert.

	* gcc.dg/graphite/fuse-1.c: Adjust.
	* gcc.dg/graphite/fuse-2.c: Likewise.
	* gcc.dg/graphite/pr82355.c: New testcase.

From-SVN: r253336

	* omp-expand.c (adjust_context_scope): New function.
	(expand_parallel_call): Call adjust_context_scope.

From-SVN: r253335

From-SVN: r253334

	* MAINTAINERS: Add a note that maintainership also includes web
	pages, docs, and testsuite related to that area.

From-SVN: r253330

tree-ssa-dom.c (optimize_stmt): Make this a method within the dom_opt_dom_walker class with direct access to...

	* tree-ssa-dom.c (optimize_stmt): Make this a method within the
	dom_opt_dom_walker class with direct access to private members.
	Add comments.  Call test_for_singularity.
	(dom_opt_dom_walker::before_dom_children): Corresponding changes.
	(dom_opt_dom_walker::after_dom_children): Do not lazily initialize
	m_dummy_cond anymore.
	(class dom_opt_dom_walker): Initialize m_dummy_cond member in the
	class ctor.
	(pass_dominator:execute): Build the dummy_cond here and pass it
	to the dom_opt_dom_walker ctor.
	(test_for_singularity): New function.

	* gcc.dg/tree-ssa/ssa-dom-simplify-1.c: New test.

2017-09-30  Paolo Carlini  <paolo.carlini@oracle.com>

From-SVN: r253329

2017-10-01  Dominique d'Humieres  <dominiq@lps.ens.fr>

	PR fortran/61450
	* parse.c (gfc_global_used): Replace the gfc_internal_error
	with an error.

2017-10-01  Dominique d'Humieres  <dominiq@lps.ens.fr>

	PR fortran/61450
	* gfortran.dg/binding_label_tests_28.f90: New test.

From-SVN: r253328

From-SVN: r253327

config.gcc (*-*-netbsd*): New variable nbsd_tm_file containing netbsd.h, netbsd-stdint.h, and netbsd-elf.h.

2017-09-30  Krister Walfridsson  <krister.walfridsson@gmail.com>
	    Maya Rashish  <coypu@sdf.org>

	* config.gcc (*-*-netbsd*): New variable nbsd_tm_file containing
	netbsd.h, netbsd-stdint.h, and netbsd-elf.h.
	(alpha*-*-netbsd*) Use nbsd_tm_file.
	(arm*-*-netbsdelf*) Likewise.
	(i[34567]86-*-netbsdelf*) Likewise.
	(x86_64-*-netbsd*) Likewise.
	(mips*-*-netbsd*) Likewise.
	(powerpc-*-netbsd*) Likewise.
	(sh*-*-netbsd*) Likewise.
	(sparc-*-netbsdelf*) Likewise.
	(sparc64-*-netbsd*) Likewise.
	(m68k*-*-netbsdelf*) Use nbsd_tm_file and add CHAR_FAST8/SHORT_FAST16
	to tm_defines.
	(vax-*-netbsdelf*) Likewise.
	* config/netbsd-stdint.h (INT_FAST8_TYPE): Check CHAR_FAST8.
	(UINT_FAST8_TYPE) Likewise.
	(INT_FAST16_TYPE) Check CHAR_FAST16.
	(UINT_FAST16_TYPE) Likewise.

Co-Authored-By: Maya Rashish <coypu@sdf.org>

From-SVN: r253323

2017-09-30  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/65949
	* g++.dg/cpp1y/lambda-generic-variadic5.C: New.

From-SVN: r253322

/cp
2017-09-30  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/68754
	* method.c (defaulted_late_check): Early return if the defaulted
	declaration does not match the expected signature.

/testsuite
2017-09-30  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/68754
	* g++.dg/cpp1y/constexpr-68754.C: Move...
	* g++.dg/cpp0x/constexpr-68754.C: ... here, adjust.

From-SVN: r253321

	PR target/82361
	* config/i386/i386.md
	(TARGET_USE_8BIT_IDIV zext divmodsi4 splitter): New define_split.
	(divmodsi4_zext_1, divmodsi4_zext_2, *divmodsi4_zext_1,
	*divmodsi4_zext_2): New define_insn_and_split.
	(*divmodsi4_noext_zext_1, *divmodsi4_noext_zext_2): New define_insn.
	(TARGET_USE_8BIT_IDIV zext udivmodsi4 splitter): New define_split.
	(udivmodsi4_zext_1, udivmodsi4_zext_2, *udivmodsi4_zext_1,
	*udivmodsi4_zext_2, *udivmodsi4_pow2_zext_1, *udivmodsi4_pow2_zext_2):
	New define_insn_and_split.
	(*udivmodsi4_noext_zext_1, *udivmodsi4_noext_zext_2): New define_insn.
	* config/i386/i386.c (ix86_split_idivmod): Handle operands[0] or
	operands[1] having DImode when mode is SImode.

	* gcc.target/i386/pr82361-1.c: New test.
	* gcc.target/i386/pr82361-2.c: New test.

From-SVN: r253317

	* config/i386/i386.c (ix86_split_idivmod): Use mode instead of
	always SImode for DIV and MOD in REG_EQUAL notes.

From-SVN: r253316

From-SVN: r253315

From-SVN: r253311

	* c-attribs.c (handle_noipa_attribute): Don't add "stack_protect"
	attribute.

From-SVN: r253308

2017-09-29  Yury Gribov  <tetra2005@gmail.com>

	PR middle-end/82319
gcc/
	* match.pd: Fix handling of NaNs in pattern.

gcc/testsuite/
	* c-c++/common/pr57371-4.c: Test NaN comparisons.

From-SVN: r253307

	* c-ada-spec.c (to_ada_name): Add index parameter.
	(pp_ada_tree_identifier): Likewise.
	(dump_ada_macros): Adjust call to to_ada_name.
	(struct overloaded_name_hash): New type.
	(struct overloaded_name_hasher): Likewise.
	(overloaded_names): New hash table.
	(compute_overloading_index): New function.
	(dump_ada_decl_name): Call it and pass the result to
	pp_ada_tree_identifier.
	(dump_ada_double_name): Adjust calls to pp_ada_tree_identifier.
	(dump_ada_function_declaration): Likewise.
	(dump_generic_ada_node): Likewise.
	(print_constructor): Likewise.
	(print_destructor): Likewise.
	(dump_ada_specs): Delete overloaded_names table.

From-SVN: r253306

	* sbitmap.c (bitmap_bit_in_range_p): New function.
	* sbitmap.h (bitmap_bit_in_range_p): Prototype.
	* tree-ssa-dse.c (live_bytes_read): New function.
	(dse_classify_store): Ignore reads of dead bytes.

	* testsuite/gcc.dg/tree-ssa/ssa-dse-26.c: New test.

From-SVN: r253305

	* c-ada-spec.c (max_ada_macros): Move around.
	(store_ada_macro_index): Likewise.
	(source_file): Rename into...
	(macro_source_file): ...this.
	(count_ada_macro): Move around.
	(store_ada_macro): Likewise.
	(compare_macro): Likewise.
	(print_ada_macros): Merge in...
	(dump_ada_macros): ...this.
	(source_file_base): Rename into...
	(current_source_file): ...this.
	(print_comment): Move around.
	(dump_ada_nodes): Call dump_ada_declaration directly.
	(struct with): Change type of limited field to bool.
	(append_withs): Change type of limited_access parameter to bool.
	(pp_ada_tree_identifie): Likewise.
	(dump_ada_decl_nam): Likewise.
	(dump_generic_ada_node): Likewise.  Do not print the return type.
	(to_ada_name): Change type of space_found parameter to bool.
	(dump_ada_function_declaration): Return void and change type of
	parameters to bool.  Also print the return type for a function.
	(print_ada_methods): Rename into...
	(dump_ada_methods): ...this.
	(print_ada_declaration): Rename into ...
	(dump_ada_declaration): ...this.  Do not print the return type.
	(print_ada_struct_decl): Rename into...
	(dump_ada_struct_decl): ...this.

From-SVN: r253304

	* config/i386/i386.c (ix86_adjust_stack_and_probe_stack_clash): Fix
	typos and whitespace errors.
	* config/i386/predicates.md (address_no_seg_operand): Likewise.
	* config/s390/s390.c (s390_emit_prologue): Likewise.

From-SVN: r253303

	P0683R1 - default member initializers for bit-fields
cp/
	* cp-tree.h (grokbitfield): Add INIT parameter.
	* parser.c (cp_parser_constant_expression): Add STRICT_P argument,
	if true, parse a conditional-expression rather than
	assignment-expression.
	(cp_parser_member_declaration): For C++11 and later pass true
	as STRICT_P to cp_parser_constant_expression.  Parse C++2A bitfield
	NSDMIs.  Adjust grokbitfield caller.  Handle DECL_INITIAL also for
	DECL_C_BIT_FIELDs.
	(cp_parser_objc_class_ivars): Adjust grokbitfield caller.
	* class.c (check_field_decl): Recurse even for DECL_C_BIT_FIELDs.
	(check_field_decls): Call check_field_decl even for DECL_C_BIT_FIELDs.
	* decl2.c (grokbitfield): Add INIT parameter, pass it to
	cp_finish_decl.
	* pt.c (tsubst_decl): Handle DECL_INITIAL for all FIELD_DECLs, not
	just non-bitfields.
testsuite/
	* g++.dg/ext/bitfield6.C: New test.
	* g++.dg/cpp2a/bitfield1.C: New test.
	* g++.dg/cpp2a/bitfield2.C: New test.
	* g++.dg/cpp2a/bitfield3.C: New test.

From-SVN: r253302