gcc/lto/ChangeLog:
2016-09-21  Kugan Vivekanandarajah  <kuganv@linaro.org>

	* lto-partition.c: Include tree-vrp.h.
	* lto.c: Likewise.

gcc/testsuite/ChangeLog:

2016-09-21  Kugan Vivekanandarajah  <kuganv@linaro.org>

	* g++.dg/ipa/pure-const-3.C: Add -fno-ipa-vrp. Else constant arguments
	will be optimized away.
	* gcc.dg/ipa/vrp1.c: New test.
	* gcc.dg/ipa/vrp2.c: New test.
	* gcc.dg/ipa/vrp3.c: New test.

gcc/ChangeLog:

2016-09-21  Kugan Vivekanandarajah  <kuganv@linaro.org>

	* common.opt: New option -fipa-vrp.
	* ipa-cp.c (ipa_get_vr_lat): New.
	(ipcp_vr_lattice::print): Likewise.
	(print_all_lattices): Call ipcp_vr_lattice::print.
	(ipcp_vr_lattice::meet_with): New.
	(ipcp_vr_lattice::meet_with_1): Likewise.
	(ipcp_vr_lattice::top_p): Likewise.
	(ipcp_vr_lattice::bottom_p): Likewsie.
	(ipcp_vr_lattice::set_to_bottom): Likewise.
	(set_all_contains_variable): Call VR set_to_bottom.
	(initialize_node_lattices): Init VR lattices.
	(propagate_vr_accross_jump_function): New.
	(propagate_constants_accross_call): Call
	propagate_vr_accross_jump_function.
	(ipcp_store_vr_results): New.
	(ipcp_driver): Handle VR.
	* ipa-prop.c (ipa_print_node_jump_functions_for_edge): Handle VR.
	(ipa_set_jf_unknown): Likewise.
	(ipa_compute_jump_functions_for_edge): Likewise.
	(ipa_node_params_t::duplicate): Likewise.
	(ipa_write_jump_function): Likewise.
	(ipa_read_jump_function): Likewise.
	(write_ipcp_transformation_info): Likewise.
	(read_ipcp_transformation_info): Likewise.
	(ipcp_update_vr): New.
	(ipcp_transform_function): Handle VR.
	* ipa-prop.h (struct ipa_vr): New.
	* cgraph.c: Include tree-vrp.h.
	* cgraphunit.c: Likewise.
	* ipa-utils.c: Likewise.
	* ipa.c: Likewise.

From-SVN: r240292

gcc/ChangeLog:

2016-09-21  Kugan Vivekanandarajah  <kuganv@linaro.org>

	* doc/invoke.texi: Document -fdump-tree-evrp.
	* passes.def: Define new pass_early_vrp.
	* timevar.def: Define new TV_TREE_EARLY_VRP.
	* tree-pass.h (make_pass_early_vrp): New.
	* tree-ssa-propagate.c: Make replace_uses_in non static.
	* tree-ssa-propagate.h: Export replace_uses_in.
	* tree-vrp.c (extract_range_for_var_from_comparison_expr): New.
	(extract_range_from_assert): Factor out
	extract_range_for_var_from_comparison_expr.
	(vrp_initialize_lattice): New.
	(vrp_initialize): Factor out vrp_initialize_lattice.
	(vrp_valueize): Fix it to reject complex value ranges.
	(vrp_free_lattice): New.
	(evrp_dom_walker::before_dom_children): Likewise.
	(evrp_dom_walker::after_dom_children): Likewise.
	(evrp_dom_walker::push_value_range): Likewise.
	(evrp_dom_walker::pop_value_range): Likewise.
	(execute_early_vrp): Likewise.
	(execute_vrp): Call vrp_initialize_lattice and
	vrp_free_lattice.
	(make_pass_early_vrp): New.


gcc/testsuite/ChangeLog:

2016-09-21  Kugan Vivekanandarajah  <kuganv@linaro.org>

	* g++.dg/tree-ssa/pr31146-2.C: Run with -fno-tree-evrp as evrp also
	does the same transformation.
	* g++.dg/warn/pr33738.C: XFAIL as optimization now happens in ccp.
	* gcc.dg/tree-ssa/evrp1.c: New test.
	* gcc.dg/tree-ssa/evrp2.c: New test.
	* gcc.dg/tree-ssa/evrp3.c: New test.
	* gcc.dg/tree-ssa/pr20657.c: Check for the pattern in evrp dump.
	* gcc.dg/tree-ssa/pr22117.c: Likewise.
	* gcc.dg/tree-ssa/pr61839_2.c: Likewise.
	* gcc.dg/tree-ssa/pr64130.c: Likewise.
	* gcc.dg/tree-ssa/pr37508.c: Change the pattern to be checked as
	foling now happens early.
	* gcc.dg/tree-ssa/vrp04.c: Likewise.
	* gcc.dg/tree-ssa/vrp06.c: Likewise.
	* gcc.dg/tree-ssa/vrp16.c: Likewise.
	* gcc.dg/tree-ssa/vrp25.c: Likewise.
	* gcc.dg/tree-ssa/vrp67.c: Likewise.

From-SVN: r240291

2016-09-20  Christophe Lyon  <christophe.lyon@linaro.org>

	* dg-extract-results.py: Report DejaGnu error in the final
	summary.
	* dg-extract-results.sh: Likewise.

From-SVN: r240289

2016-09-20  Christophe Lyon  <christophe.lyon@linaro.org>

	* compare_tests: Take ERROR messages into account when
          comparing.

From-SVN: r240288

	* trans-intrinsic.c (conv_expr_ref_to_caf_ref): Adjust fall through
	comment.

From-SVN: r240286

    
    Patch from Rainer Orth.
    
    Reviewed-on: https://go-review.googlesource.com/29436

From-SVN: r240285

	* config/i386/i386.md (mult->ashift peephole2s): Use pow2p_hwi
	instead of exact_log2.

From-SVN: r240281

re PR go/77625 (go/gofrontend/ast-dump.cc:169:42: error: ‘new’ of type ‘std::ofstr eam {aka std::basic_ofstream<char>}’ with extended alignment 16)

	PR go/77625

    compiler: allocate std::ofstream as a local variable
    
    GCC PR 77625 points out a warning about new std::ofstream.  I don't know
    how that is supposed to work, but in this case the std::ofstream may as
    well be a local variable anyhow.
    
    Reviewed-on: https://go-review.googlesource.com/29435

From-SVN: r240279

	PR target/77621
	* config/i386/i386.c (ix86_preferred_simd_mode) <case DFmode>:
	Don't return word_mode for !TARGET_VECTORIZE_DOUBLE.
	(ix86_add_stmt_cost): Penalize DFmode vector operations
	for !TARGET_VECTORIZE_DOUBLE.

testsuite/ChangeLog:

	PR target/77621
	* gcc.target/i386/pr77621.c: New test.
	* gcc.target/i386/vect-double-2.c: Update scan-tree-dump-times
	pattern, loop should vectorize with -mtune=atom.

From-SVN: r240277

	PR go/77642

    runtime: pass correct type to __splitstack_find
    
    The code was passing uintptr* to a function that expected size_t*.
    
    Based on patch by Andreas Krebbel.
    
    Fixes GCC PR 77642.
    
    Reviewed-on: https://go-review.googlesource.com/29433

From-SVN: r240275

	* doc/invoke.texi (Warning Options): Simplify language.
	(Optimize Options): Complete sentence.

From-SVN: r240274

From-SVN: r240273

rs6000.c (rs6000_expand_vector_init): For V4SF inits on power8 and above, use the VMRGEW instruction instead of a permute.

2016-09-20  Michael Meissner  <meissner@linux.vnet.ibm.com>

	* config/rs6000/rs6000.c (rs6000_expand_vector_init): For V4SF
	inits on power8 and above, use the VMRGEW instruction instead of a
	permute.

	* config/rs6000/altivec.md (UNSPEC_VMRGEW_DIRECT): New unspec.
	(p8_vmrgew_v4sf_direct): New VMRGEW insn for V4SF floating
	initialization.

From-SVN: r240272

Committed on behalf of Tamar Christina  <tamar.christina@arm.com>

gcc/

	* config/aarch64/arm_neon.h
	(vst2_s64, vst2_u64, vst2_f64, vst2_s8): Add missing attributes.
	(vst3_s64, vst3_u64, vst3_f64, vst3_s8): Likewise.
	(vst4_s64, vst4_u64, vst4_f64, vst4_s8): Likewise.

From-SVN: r240271

2016-09-20  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * config/var/vax.h (ELIMINABLE_REGS): Define.
        (INITIAL_ELIMINATION_OFFSET): Define.

From-SVN: r240269

	PR testsuite/63299
	* g++.old-deja/g++.jason/init3.C (My_string::~My_string): Use delete[]
	instead of delete.

Co-Authored-By: Jakub Jelinek <jakub@redhat.com>

From-SVN: r240268

re PR c++/77626 (ICE with -Wall on x86_64-linux-gnu (internal compiler error: Segmentation fault, byte_from_pos, cxx_fold_indirect_ref))

	PR c++/77626
	* constexpr.c (cxx_fold_indirect_ref): Don't call byte_position on
	FIELD_DECLs with error_mark_node type.  Remove useless break; after
	return.

	* g++.dg/other/pr77626.C: New test.

From-SVN: r240267

re PR c++/77638 (ICE on x86_64-linux-gnu (internal compiler error: tree check: expected tree that contains ‘decl common’ structure, have ‘error_mark’ in cp_parser_template_declaration_after_parameters, at cp/parser.c:25722))

	PR c++/77638
	* parser.c (cp_parser_template_declaration_after_parameter): For 2
	argument operator"" template set ok to false for
	parm == error_mark_node.

	* g++.dg/cpp0x/udlit-tmpl-arg-neg2.C: New test.

From-SVN: r240266

re PR c++/77637 (ICE on x86_64-linux-gnu (Segmentation fault, tree_check, cp_parser_std_attribute_list...))

	PR c++/77637
	* parser.c (cp_parser_std_attribute_list): Reject ... without
	preceding attribute.

	* g++.dg/cpp0x/gen-attrs-62.C: New test.

From-SVN: r240265

	PR libstdc++/77619
	* include/bits/stl_construct.h: (_Construct_novalue): New.
	(_Destroy_n_aux, _Destroy_n): New.
	* include/bits/stl_uninitialized.h: (type_traits):
	New include in C++11 mode.
	(__uninitialized_default_novalue_1): New.
	(__uninitialized_default_novalue_n_1): Likewise.
	(__uninitialized_default_novalue): Likewise.
	(__uninitialized_default_novalue_n): Likewise.
	(__uninitialized_copy_n_pair): Likewise.
	(uninitialized_default_construct):
	Use __uninitialized_default_novalue.
	(uninitialized_default_construct_n):
	Use __uninitialized_default_novalue_n.
	(uninitialized_value_construct): Use __uninitialized_default.
	(uninitialized_value_construct_n): Use __uninitialized_default_n.
	(uninitialized_move): Use uninitialized_copy.
	(uninitialized_move_n): Use __uninitialized_copy_n_pair.
	(destroy_at): Use _Destroy.
	(destroy): Likewise.
	(destroy_n): Likewise.
	* testsuite/20_util/specialized_algorithms/
	memory_management_tools/1.cc: Add tests for exceptions,
	add tests for trivial cases for construct and move.

From-SVN: r240264

re PR middle-end/77624 (ICE on x86_64-linux-gnu (internal compiler error: in fold_builtin_atomic_always_lock_free, at builtins.c:5583))

	PR middle-end/77624
	* builtins.c (fold_builtin_atomic_always_lock_free): Only look through
	cast to void * if the cast is from some other pointer type.

	* c-c++-common/pr77624-1.c: New test.
	* c-c++-common/pr77624-2.c: New test.

From-SVN: r240263

2016-09-20  Andre Vehreschild  <vehre@gcc.gnu.org>

        * gfortran.dg/coarray_allocate_7.f08: Using + instead of fixed number
        of digits expected.

From-SVN: r240262

2016-09-20  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/77646
	* tree-ssa-sccvn.c (visit_reference_op_call): Always value-number
	a VDEF.

	* gcc.dg/torture/pr77646.c: New testcase.

From-SVN: r240261

	* python/libstdcxx/v6/xmethods.py (DequeWorkerBase.__init__)
	(DequeWorkerBase.index, VectorWorkerBase.get): Use // for division.

From-SVN: r240258

Committed on behalf of Tamar Christina <tamar.christina@arm.com>.

gcc/

	* config/aarch64/arm_neon.h: Add gnu_inline and artificial
	attributes to all inlined functions and make them extern.

From-SVN: r240256

2016-09-20  Richard Biener  <rguenther@suse.de>

	* debug.h (gcc_debug_hooks): Add filename parameter to early_finish
	hook.
	* debug.c (do_nothing_debug_hooks): Adjust.
	* dbxout.c (dbx_debug_hooks): Likewise.
	* sdbout.c (sdb_debug_hooks): Likewise.
	* dwarf2out.c (dwarf2_lineno_debug_hooks): Likewise.
	(dwarf2out_finish): Move producer, filename and
	path annotation ...
	(dwarf2out_early_finish): ... here.  Remove in_lto_p special-casing.
	* cgraphunit.c (symbol_table::finalize_compilation_unit): Adjust.

	lto/
	* lto.c (lto_main): Call early_finish with "<artificial>" as
	filename.

From-SVN: r240255

From-SVN: r240254

gcc:
2016-09-19  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        PR c++/77434
        * doc/invoke.texi: Document -Wint-in-bool-context.

c-family:
2016-09-19  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        PR c++/77434
        * c.opt (Wcond-in-bool-context): New warning.
        * c-common.c (c_common_truthvalue_conversion): Warn on integer
        constants in boolean context.

cp:
2016-09-19  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        PR c++/77434
        * cvt.c (cp_convert_and_check): Suppress Wint-in-bool-context here.

testsuite:
2016-09-19  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        PR c++/77434
        * c-c++-common/Wint-in-bool-context.c: New test.

From-SVN: r240251

2016-09-19  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        PR middle-end/77421
        * dwarf2out.c (output_loc_operands): Fix an assertion.

From-SVN: r240250

TS 18661-1 defines a macro CR_DECIMAL_DIG in <float.h>, for the number
of decimal digits for which conversions between decimal character
strings and (IEEE) binary formats, in both directions, are correctly
rounded.  This patch implements support for this macro in GCC's
<float.h>.

The definition __UINTMAX_MAX__ is the right one for GCC's conversions
of floating constants, since I made those use MPFR to make them
correctly rounding.  The macro also covers standard library functions
such as strtod and printf.  The definition is also correct for current
glibc.  If any targets' libcs support correct rounding in a way that
conforms to TS 18661-1 with a smaller value of CR_DECIMAL_DIG, making
<float.h> reflect that could not be done in isolation without changes
to the interpretation of floating constants as well, since a smaller
CR_DECIMAL_DIG requires double rounding of floating constants (first
to CR_DECIMAL_DIG decimal digits, then to the desired binary format).

Boostrapped with no regressions on x86_64-pc-linux-gnu.

gcc:
	* ginclude/float.h [__STDC_WANT_IEC_60559_BFP_EXT__]
	(CR_DECIMAL_DIG): New macro.

gcc/testsuite:
	* gcc.dg/cr-decimal-dig-1.c: New test.

From-SVN: r240249

The _FloatN, _FloatNx, _DecimalN and _DecimalNx types are specified in
such a way that they are basic types, meaning that max_align_t must be
at least as aligned as those types.

On 32-bit x86, max_align_t is currently 8-byte aligned, but
_Decimal128 and _Float128 are 16-byte aligned, so the alignment of
max_align_t needs to increase to meet the standard requirements for
these types.

This patch implements such an increase.  Because max_align_t needs to
be usable for C++ as well as for C, <stddef.h> can't actually refer to
_Float128, but needs to use __float128 (or some other notation for the
type) instead.  And since __float128 is architecture-specific, there
isn't a preprocessor conditional that means "__float128 is available"
(whereas one could test __FLT128_MANT_DIG__ to see if _Float128 is
available; __SIZEOF_FLOAT128__ is available on x86 only).  But I
believe the only case that actually has an alignment problem here is
32-bit x86, and <stddef.h> already has lots of conditional specific to
particular architectures or OSes, so this patch uses a conditional on
__i386__; that also is the minimal change that ensures neither size
nor alignment of max_align_t is changed in any case other than where
it is necessary.  If any other architectures turn out to have such an
issue, it will show up as failures of one of the testcases added by
this patch.

Such an increase is of course an ABI change, but a reasonably safe
one, in that max_align_t doesn't tend to appear in library interfaces
(rather, it's something to use when writing allocators and similar
code; most matches found on codesearch.debian.net look like copies of
the gnulib stddef.h module rather than anything actually using
max_align_t at all).

max_align_t_align has a corresponding change (adding _Float128 to the
types considered).

(I think glibc malloc alignment should also increase to 16-byte on
32-bit x86 so it works for allocating objects of these types, which is
now straightforward given the fix made for 32-bit powerpc.)

Bootstrapped with no regressions on x86_64-pc-linux-gnu, and
spot-tested with -m32 that the new float128-align.c test now compiles
where previously it didn't.

gcc:
	* ginclude/stddef.h (max_align_t) [__i386__]: Add __float128
	element.

gcc/c-family:
	* c-common.c (max_align_t_align): Also consider alignment of
	float128_type_node.

gcc/testsuite:
	* gcc.dg/float128-align.c, gcc.dg/float128x-align.c,
	gcc.dg/float16-align.c, gcc.dg/float32-align.c,
	gcc.dg/float32x-align.c, gcc.dg/float64-align.c,
	gcc.dg/float64x-align.c, gcc.dg/floatn-align.h: New tests.

From-SVN: r240248

2016-09-19  Vladimir Makarov  <vmakarov@redhat.com>

	PR rtl-optimization/77416
	* lra-remat.c (operand_to_remat): Process hard coded insn
	registers.

2016-09-19  Vladimir Makarov  <vmakarov@redhat.com>

	PR rtl-optimization/77416
	* gcc.target/powerpc/pr77416.c: New.

From-SVN: r240247

gcc/cp/ChangeLog:

	PR c++/77639
	* parser.c (cp_parser_class_head): When
	processing_template_parmlist, don't assume that the
	class-head may start an explicit specialization.

gcc/testsuite/ChangeLog:

	PR c++/77639
	* g++.dg/template/error-recovery4.C: New test.

From-SVN: r240245

	PR libstdc++/77645
	* python/libstdcxx/v6/xmethods.py (DequeWorkerBase.__init__)
	(DequeWorkerBase.index, VectorWorkerBase.get): Cast results of
	division to int to work with Python 3.

From-SVN: r240241

	gcc/testsuite
	* gcc.dg/vect/pr57558-1.c: Use unsigned int instead of unsigned long.

From-SVN: r240239

	* simplify-rtx.c (simplify_relational_operation_1): Add transformation
	(GTU (PLUS a C) (C - 1)) --> (LTU a -C).

	* gcc.target/aarch64/gtu_to_ltu_cmp_1.c: New test.
	* gcc.target/aarch64/gtu_to_ltu_cmp_2.c: New test.

From-SVN: r240238

	* testsuite/lib/gdb-test.exp (gdb-test): Fail if Python error occurs.

From-SVN: r240237

	* target.def (lra_p): Wordsmithing.
	* doc/tm.texi: Regenerate.

From-SVN: r240236

	* python/libstdcxx/v6/printers.py (SingleObjContainerPrinter): Allow
	display_hint to be set by subclasses.
	(StdVariantPrinter): Use array for display_hint. Adjust output to be
	more similar to std::any and std::optional output.
	(register_type_printers): Add type printers for basic_string_view
	typedefs and experimental::any. Adjust type printers for
	fundamentals_v1 templates to match fundamentals_v2 and later.
	* testsuite/libstdc++-prettyprinters/cxx17.cc: New.

From-SVN: r240234

	PR libstdc++/77645
	* python/libstdcxx/v6/xmethods.py (DequeWorkerBase.index): Rename
	argument.
	(ListWorkerBase.get_value_from_node): Define new method.
	(ListFrontWorker.__call__, ListBackWorker.__call__): Use it.

From-SVN: r240233