* pt.c (maybe_instantiate_noexcept): Do instantiate in templates if
	flag_noexcept_type.  Build the new spec within the function context.
	* except.c (build_noexcept_spec): Do get constant value in templates
	if flag_noexcept_type.
	* decl.c (check_redeclaration_exception_specification): Don't
	instantiate noexcept on a dependent declaration.

From-SVN: r259356

	PR c++/85258
	* constexpr.c (reduced_constant_expression_p): Return false for null
	trees.

	* g++.dg/parse/error61.C: New test.

From-SVN: r259355

	PR target/85291
	* config/rs6000/rs6000.md (fix_trunc<mode>si2): Use legacy code if
	asked to not generate direct moves.
	(fix_trunc<mode>si2_stfiwx): Similar.
	(fix_trunc<mode>si2_internal): Similar.

From-SVN: r259354

re PR debug/83157 (gcc.dg/guality/pr41616-1.c fail, inline instances refer to concrete instance as abstract origin)

	PR debug/83157
	* var-tracking.c (add_stores): Handle STRICT_LOW_PART SET_DEST.
	* cselib.c (cselib_record_sets): For STRICT_LOW_PART dest,
	lookup if dest in some wider mode is known to be const0_rtx and
	if so, record permanent equivalence for it to be ZERO_EXTEND of
	the narrower mode destination.

From-SVN: r259353

	gcc/
	* lto-streamer-out.c (output_function): Revert 259346.
	* omp-expand.c (expand_oacc_for): Likewise.

	libgomp/
	* testsuite/libgomp.oacc-c-c++-common/pr84955.c: Revert 259346.
	* testsuite/libgomp.oacc-fortran/pr84955.f90:Likewise.

From-SVN: r259351

gcc/testsuite/ChangeLog:

2018-04-12  Kelvin Nilsen  <kelvin@gcc.gnu.org>

	PR target/85347
	* gcc.target/powerpc/vec-ldl-1.c: Change dejagnu directives to
	specify -mvsx on gcc command line.

From-SVN: r259350

The definition of __throw_ios_failure is no longer in this file, so
setting the macro here is unnecessary.

	* src/c++11/ios.cc: Remove redundant macro definition.

From-SVN: r259349

	PR rtl-optimization/85354
	* sel-sched-ir.c (sel_init_pipelining): Move cfg_cleanup call...
	* sel-sched.c (sel_global_init): ... here.

From-SVN: r259348

re PR target/85238 (lto-wrapper: fatal error:  simple_object_copy_lto_debug_sections not implemented: Invalid argument  on Cygwin)

	PR target/85238
	* lto-wrapper.c (debug_objcopy): Open the files in binary mode.
	* dwarf2out.c (dwarf2out_early_finish): Do not generate assembly in LTO
	mode for PE-COFF targets.
	* config/i386/i386-protos.h (i386_pe_asm_lto_start): Declare.
	(i386_pe_asm_lto_end): Likewise.
	* config/i386/cygming.h (TARGET_ASM_LTO_START): Define.
	(TARGET_ASM_LTO_END): Likewise.
	* config/i386/winnt.c (saved_debug_info_level): New static variable.
	(i386_pe_asm_lto_start): New function.
	(i386_pe_asm_lto_end): Likewise.

From-SVN: r259347

PR middle-end/84955

	gcc/
	* lto-streamer-out.c (output_function): Fix CFG loop state before
	streaming out.
	* omp-expand.c (expand_oacc_for): Handle calls to internal
	functions like regular functions.

	libgomp/
	* testsuite/libgomp.oacc-c-c++-common/pr84955.c: New test.
	* testsuite/libgomp.oacc-fortran/pr84955.f90: New test.

Co-Authored-By: Richard Biener <rguenther@suse.de>

From-SVN: r259346

2018-04-12  Richard Biener  <rguenther@suse.de>

	PR lto/85371
	* dwarf2out.c (init_sections_and_labels): Use debug_line_section[_label]
	for the early LTO debug to properly generate references to it
	during DIE emission.  Do not re-use that for the skeleton for
	split-dwarf.
	(dwarf2out_early_finish): Likewise.

From-SVN: r259345

	PR target/85328
	* config/i386/sse.md
	(<mask_codefor>avx512dq_vextract<shuffletype>64x2_1<mask_name> split,
	<mask_codefor>avx512f_vextract<shuffletype>32x4_1<mask_name> split,
	vec_extract_lo_<mode><mask_name> split, vec_extract_lo_v32hi,
	vec_extract_lo_v64qi): For non-AVX512VL if input is xmm16+ reg
	and output is a reg, avoid creating invalid lowpart subreg, but
	instead split into a 512-bit move.  Don't split if not AVX512VL,
	input is xmm16+ reg and output is a mem.
	(vec_extract_lo_<mode><mask_name>, vec_extract_lo_v32hi,
	vec_extract_lo_v64qi): Don't require split if not AVX512VL, input is
	xmm16+ reg and output is a mem.

	* gcc.target/i386/pr85328.c: New test.

From-SVN: r259344

The CFI magic we emit as part of the indirect branch thunks in order to
have somewhat sane unwind information must not be emitted with
-fno-dwarf2-cfi-asm.

gcc/ChangeLog:

2018-04-12  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

	* config/s390/s390.c (s390_output_indirect_thunk_function): Check
	also for flag_dwarf2_cfi_asm.

gcc/testsuite/ChangeLog:

2018-04-12  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

	* gcc.target/s390/nobp-no-dwarf2-cfi.c: New test.

From-SVN: r259340

2018-04-11  Paolo Carlini  <paolo.carlini@oracle.com>

	* g++.dg/warn/Wzero-as-null-pointer-constant-7.C: Move...
	* g++.dg/cpp0x/Wzero-as-null-pointer-constant-3.C: ... here.

From-SVN: r259339

re PR rtl-optimization/85342 (ICE: SIGSEGV in copyprop_hardreg_forward_1 (regcprop.c:995) with -O2 -mavx512vl)

	PR rtl-optimization/85342
	* regcprop.c (copyprop_hardreg_forward_1): Remove replaced array, use
	a bool scalar var inside of the loop instead.  Don't try to update
	recog_data.operand after failed apply_change_group.

	* gcc.target/i386/pr85342.c: New test.

From-SVN: r259338

2018-04-12  Tom de Vries  <tom@codesourcery.com>

	PR target/85296
	* config/nvptx/nvptx.c (flexible_array_member_type_p): New function.
	(nvptx_assemble_decl_begin): Add undefined param.  Declare undefined
	array with flexible array member as array without given dimension.
	(nvptx_assemble_undefined_decl): Set nvptx_assemble_decl_begin call
	argument for undefined param to true.

From-SVN: r259337

From-SVN: r259336

From-SVN: r259333

2018-04-11  Paolo Carlini  <paolo.carlini@oracle.com>

	* g++.dg/warn/Wzero-as-null-pointer-constant-7.C: Move...
	* g++.dg/cpp0x/Wzero-as-null-pointer-constant-3.C: ... here.

From-SVN: r259327

	gcc/testsuite
	PR testsuite/85190
	* gcc.dg/vect/pr81196.c: Remove function with undefined behavior.

From-SVN: r259326

	PR c++/70808
	* g++.dg/warn/Wzero-as-null-pointer-constant-7.C: Require c++11
	effective target.

From-SVN: r259325

2018-04-11  Aaron Sawdey  <acsawdey@linux.ibm.com>

	PR target/85321
	* doc/invoke.texi (RS/6000 and PowerPC Options): Document options
	-mcall- and -mtraceback=. Remove options -mabi=spe and -mabi=no-spe
	from PowerPC section.
	* config/rs6000/sysv4.opt (mcall-): Improve help text.
	* config/rs6000/rs6000.opt (mblock-compare-inline-limit=): Trim
	help text that is too long.
	* config/rs6000/rs6000.opt (mblock-compare-inline-loop-limit=): Trim
	help text that is too long.
	* config/rs6000/rs6000.opt (mstring-compare-inline-limit=): Trim
	help text that is too long.

From-SVN: r259324

	* config/alpha/alpha.md (stack_probe_internal): Rename
	from "probe_stack".  Update all callers.

From-SVN: r259323

	PR rtl-optimization/84566
	* sched-deps.c (sched_analyze_insn): Check deps->readonly when invoking
	sched_macro_fuse_insns.

From-SVN: r259322

	PR target/84301
	* sched-rgn.c (add_branch_dependences): Move sel_sched_p check here...
	(compute_block_dependences): ... from here.

testsuite/
	* gcc.target/i386/pr84301.c: New test.

From-SVN: r259321

re PR tree-optimization/85331 (during GIMPLE pass, internal compiler error: Segmentation fault (-O1 and above))

	PR tree-optimization/85331
	* vec-perm-indices.h (vec_perm_indices::clamp): Change input type
	from int to HOST_WIDE_INT.

	* gcc.c-torture/execute/pr85331.c: New test.

From-SVN: r259320

2018-04-11  Martin Jambor  <mjambor@suse.cz>

	PR ipa/84149
	* ipa-cp.c (propagate_vals_across_pass_through): Expand comment.
	(cgraph_edge_brings_value_p): New parameter dest_val, check if it is
	not the same as the source val.
	(cgraph_edge_brings_value_p): New parameter.
	(gather_edges_for_value): Pass destination value to
	cgraph_edge_brings_value_p.
	(perhaps_add_new_callers): Likewise.
	(get_info_about_necessary_edges): Likewise and exclude values brought
	only by self-recursive edges.
	(create_specialized_node): Redirect only clones of self-calling edges.
	(+self_recursive_pass_through_p): New function.
	(find_more_scalar_values_for_callers_subset): Use it.
	(find_aggregate_values_for_callers_subset): Likewise.
	(known_aggs_to_agg_replacement_list): Removed.
	(decide_whether_version_node): Re-calculate known constants for all
	remaining context clones.

From-SVN: r259319

	PR c++/85032
	* constexpr.c (potential_constant_expression_1): Consider conversions
	from classes to literal types potentially constant.

	* g++.dg/cpp0x/pr51225.C: Adjust error message.
	* g++.dg/cpp1z/constexpr-if21.C: New test.

From-SVN: r259318

2018-04-11  Richard Biener  <rguenther@suse.de>

	PR lto/85339
	* dwarf2out.c (dwarf2out_finish): Remove DW_AT_stmt_list attribute
	from early DWARF output.
	(dwarf2out_early_finish): Output line info unconditionally into
	early DWARF and add reference to it.

From-SVN: r259317

re PR target/85281 (Assembler messages: Error: operand size mismatch for `vpbroadcastb' with -mavx512bw -masm=intel)

	PR target/85281
	* config/i386/sse.md (iptr): Add V16SFmode and V8DFmode cases.
	(<avx512>_vec_dup<mode><mask_name>): Use a single pattern for modes
	other than V2DFmode using iptr mode attribute.
	(<avx512>_vec_dup<mode><mask_name>): Use iptr mode attribute.

	* gcc.target/i386/pr85281.c: New test.

From-SVN: r259316

From-SVN: r259314

	PR rtl-optimization/85659
	* sel-sched-ir.c (sel_init_pipelining): Invoke cleanup_cfg.

testsuite/
	* gcc.dg/pr84659.c: New test.

From-SVN: r259313

2018-04-11  Martin Liska  <mliska@suse.cz>

	* lto-symtab.c (lto_symtab_merge_p): Use attribute_value_equal
	function.

From-SVN: r259312

	PR debug/85302
	* dwarf2out.c (skip_loc_list_entry): Don't call size_of_locs if
	SIZEP is NULL.
	(output_loc_list): Pass address of a dummy size variable even in the
	locview handling loop.
	(index_location_lists): Add comment on why skip_loc_list_entry can't
	call size_of_locs.

	* g++.dg/debug/dwarf2/pr85302.C: New test.

From-SVN: r259311

Instruction pattern for setting the FPSCR expects the input value to be
in a register. However, __builtin_arm_set_fpscr expander does not ensure
that this is the case and as a result GCC ICEs when the builtin is
called with a constant literal.

This commit fixes the builtin to force the input value into a register.
It also remove the unneeded volatile in the existing fpscr test and
fixes the function prototype.

2018-04-11  Thomas Preud'homme  <thomas.preudhomme@arm.com>

    gcc/
    PR target/85261
    * config/arm/arm-builtins.c (arm_expand_builtin): Force input operand
    into register.

    gcc/testsuite/
    PR target/85261
    * config/arm/arm-builtins.c (arm_expand_builtin): Force input operand
    into register.

From-SVN: r259310

	* doc/xml/manual/abi.xml: Document header locations in recent
	releases.
	* doc/xml/manual/evolution.xml: Add API changes since GCC 5.
	* doc/xml/manual/spine.xml: Update copyright years.
	* doc/xml/manual/strings.xml: Adjust tolower example to avoid
	undefined behaviour.
	* doc/xml/manual/test.xml: Update outdated notes on VERIFY in tests.
	* doc/html/*: Regenerate.

From-SVN: r259308

From-SVN: r259307

/cp
2018-04-10  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/70808
	* init.c (build_zero_init_1): Handle NULLPTR_TYPE_P being true of
	the type like TYPE_PTR_OR_PTRMEM_P.

/testsuite
2018-04-10  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/70808
	* g++.dg/warn/Wzero-as-null-pointer-constant-7.C: New.

From-SVN: r259303

2018-04-10  Aaron Sawdey  <acsawdey@linux.ibm.com>

	PR target/85321
	* doc/invoke.texi (RS/6000 and PowerPC Options): Document options
	-mblock-compare-inline-limit, -mblock-compare-inline-loop-limit,
	and -mstring-compare-inline-limit.

From-SVN: r259302

2018-04-10  Aaron Sawdey  <acsawdey@linux.ibm.com>

	* MAINTAINERS: Update my email address.

From-SVN: r259301