configure.ac: Do not create links, only substitute the filenames.

* configure.ac: Do not create links, only substitute the filenames.
* configure: Regenerate.
* Makefile.in: Assign the substitution results to variables.
(LIBGCC_LINKS): Define.
(enable-execute-stack.c): New rule.
(unwind.h): Likewise.
(md-unwind-support.h): Likewise.
(sfp-machine.h): Likewise.
(gthr-default.h): Likewise.
Add $(LIBGCC_LINKS) to the prerequisites of all object files and
unwind.h as prerequisite of install-unwind_h-forbuild.

From-SVN: r240312

gimple-ssa-sprintf.c (pass_sprintf_length::compute_format_length): Add falls through comment.

* gimple-ssa-sprintf.c (pass_sprintf_length::compute_format_length):
Add falls through comment.

From-SVN: r240311

dwarf2out.c (remove_child_with_prev): Clear child->die_sib.

2016-09-21  Richard Biener  <rguenther@suse.de>

* dwarf2out.c (remove_child_with_prev): Clear child->die_sib.
(replace_child): Likewise.
(remove_child_TAG): Adjust.
(move_marked_base_types): Likewise.
(prune_unused_types_prune): Clear die_sib of removed children.

From-SVN: r240310

Use rand_s on MinGW-w64, fix array bound overflow.

2016-09-21  Janne Blomqvist  <jb@gcc.gnu.org>

* intrinsics/random.c (getosrandom): Use rand_s() on
MinGW-w64. Fix bounds overflow in fallback code.

From-SVN: r240309

re PR target/77326 ([avr] Invalid optimization omits comparison)

gcc/
PR target/77326
* config/avr/avr.c (avr_notice_update_cc) [CC_NONE]: If insn
touches some regs mentioned in cc_status, do CC_STATUS_INIT.
gcc/testsuite/
PR target/77326
* gcc.target/avr/torture/pr77326.c: New test.

From-SVN: r240306

pr68078.f90: Run on x86_64_*_linux* only.

2016-09-21  Louis Krupp  <louis.krupp@zoho.com>

* gfortran.dg/pr68078.f90: Run on x86_64_*_linux* only.

From-SVN: r240304

re PR tree-optimization/77648 (Setting conversion to a integer to double to 0 3/4 through a loop)

2016-09-21  Richard Biener  <rguenther@suse.de>

PR tree-optimization/77648
* tree-ssa-structalias.c (process_constraint): Handle all DEREF
with complex RHS.
(make_transitive_closure_constraints): Adjust comment.
(make_any_offset_constraints): New function.
(handle_rhs_call): Make sure to first expand a pointer to all
subfields before transitively closing it.
(handle_const_call): Likewise.  Properly expand returned
pointers as well.
(handle_pure_call): Likewise.

* gcc.dg/torture/pr77648-1.c: New testcase.
* gcc.dg/torture/pr77648-2.c: Likewise.

From-SVN: r240303

re PR tree-optimization/77621 (Internal compiler error for mtune=atom + msse2)

2016-09-21  Richard Biener  <rguenther@suse.de>
Jakub Jelinek  <jakub@redhat.com>

PR tree-optimization/77621
* tree-vect-data-refs.c (vect_analyze_data_ref_accesses): Split
group at non-vectorizable stmts.

* gcc.dg/pr77621.c: New testcase.

Co-Authored-By: Jakub Jelinek <jakub@redhat.com>
From-SVN: r240302

re PR fortran/77657 (link error with implementation of user-defined derived type input/output (UD-DTIO) in child extending abstract parent)

2016-09-21  Paul Thomas  <pault@gcc.gnu.org>

PR fortran/77657

* interface.c (gfc_find_specific_dtio_proc): Borrow trick from
resolve_typebound_generic_call to find dtio procedures that
over-ride those in the declared type.

2016-09-21  Paul Thomas  <pault@gcc.gnu.org>

PR fortran/77657
* gfortran.dg/dtio_12.f90: New test.

From-SVN: r240301

Make integer size explicit

For the lower vrp bound to be 2/-2, unsigned ints must be 4 bytes wide. This
breaks targets like avr. Explicitly using __UINT32_TYPE__ (behind a typedef)
makes the testcase pass for all targets.

gcc/testsuite/ChangeLog:

2016-09-21  Senthil Kumar Selvaraj  <senthil_kumar.selvaraj@atmel.com>

* gcc.dg/tree-ssa/pr64130.c: Use __UINT32_TYPE__ instead of int.

From-SVN: r240300

Incorrect arithmetic optimization involving bitfield arguments

gcc/ChangeLog:

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

PR tree-optimization/72835
* tree-ssa-reassoc.c (make_new_ssa_for_def): New.
(make_new_ssa_for_all_defs): Likewise.
(zero_one_operation): Replace all SSA_NAMEs defined in the chain.

gcc/testsuite/ChangeLog:

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

PR tree-optimization/72835
* gcc.dg/tree-ssa/pr72835.c: New test.

From-SVN: r240299

PR middle-end/49905 - Better sanity checking on sprintf src & dest to

gcc/ChangeLog:

PR middle-end/49905
* Makefile.in (OBJS): Add gimple-ssa-sprintf.o.
* config/linux.h (TARGET_PRINTF_POINTER_FORMAT): Redefine.
* config/linux.c (gnu_libc_printf_pointer_format): New function.
* config/sol2.h (TARGET_PRINTF_POINTER_FORMAT): Same.
* config/sol2.c (solaris_printf_pointer_format): New function.
* doc/invoke.texi (-Wformat-length, -fprintf-return-value): New
options.
* doc/tm.texi.in (TARGET_PRINTF_POINTER_FORMAT): Document.
* doc/tm.texi: Regenerate.
* gimple-fold.h (get_range_strlen): New function.
(get_maxval_strlen): Declare existing function.
* gimple-fold.c (get_range_strlen): Add arguments and compute both
maximum and minimum.
 (get_range_strlen): Define overload.
(get_maxval_strlen): Adjust.
* gimple-ssa-sprintf.c: New file and pass.
* passes.def (pass_sprintf_length): Add new pass.
* targhooks.h (default_printf_pointer_format): Declare new function.
(gnu_libc_printf_pointer_format): Same.
(solaris_libc_printf_pointer_format): Same.
* targhooks.c (default_printf_pointer_format): Define new function.
* tree-pass.h (make_pass_sprintf_length): Declare new function.
* print-tree.c: Increase buffer size.

gcc/c-family/ChangeLog:

PR middle-end/49905
* c.opt: Add -Wformat-length and -fprintf-return-value.

gcc/testsuite/ChangeLog:

PR middle-end/49905
* gcc.dg/builtin-stringop-chk-1.c: Adjust.
* gcc.dg/tree-ssa/builtin-sprintf-warn-1.c: New test.
* gcc.dg/tree-ssa/builtin-sprintf-warn-2.c: New test.
* gcc.dg/tree-ssa/builtin-sprintf-warn-3.c: New test.
* gcc.dg/tree-ssa/builtin-sprintf-warn-4.c: New test.
* gcc.dg/tree-ssa/builtin-sprintf.c: New test.
* gcc.dg/tree-ssa/builtin-sprintf-2.c: New test.

From-SVN: r240298

Daily bump.

From-SVN: r240297

Use ipa-vrp result in tree-vrp

gcc/ChangeLog:

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

 * tree-vrp.c (get_value_range): Teach PARM_DECL to use ipa-vrp
 results.

gcc/testsuite/ChangeLog:

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

* gcc.dg/guality/pr54519-1.c: Add -fno-ipa-vrp. Else constant
arguments/compare will be optimized away.
* gcc.dg/torture/ftrapv-1.c: Likewise.

From-SVN: r240293

Add IPA VRP

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

Add Early VRP

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

Report DejaGnu ERROR messages in dg-extract-results.

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

Report DejaGnu ERROR messages in compare_tests

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.

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

From-SVN: r240286

syscall: build export_unix_test.go on solaris

    Patch from Rainer Orth.

    Reviewed-on: https://go-review.googlesource.com/29436

From-SVN: r240285

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

* 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

re PR tree-optimization/77621 (Internal compiler error for mtune=atom + msse2)

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

re PR go/77642 (GO Bootstrap fail starting with r239872 splitstack signature does not match)

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

invoke.texi (Warning Options): Simplify language.

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

From-SVN: r240274

* dbxout.c (xcoff_debug_hooks):  Add filename parameter to early_finish hook.

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

[PATCH] [AArch64] Add missing attributes to arm_neon.h

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

vax.h (ELIMINABLE_REGS): Define.

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

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

From-SVN: r240269

re PR testsuite/63299 (ASan reported alloc-dealloc-mismatch in g++.old-deja/g++.jason/init3.C)

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

re PR libstdc++/77619 (uninitialized_meow_construct and friends not exception safe)

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

coarray_allocate_7.f08: Using + instead of fixed number of digits expected.

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

re PR tree-optimization/77646 (GCC Segfault with -O3)

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

Replace casts with floordiv operator in Python xmethods

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

From-SVN: r240258

[GCC][PATCH] Add __artificial__ attribute to Aarch64 NEON intrinsics

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

debug.h (gcc_debug_hooks): Add filename parameter to early_finish hook.

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

Daily bump.

From-SVN: r240254

re PR c++/77434 (warn about suspicious precedence of ternary operator (?:))

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

re PR other/77421 (Bugs found in GCC with the help of PVS-Studio)

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

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

From-SVN: r240250

Define TS 18661-1 CR_DECIMAL_DIG in <float.h>.

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

Make max_align_t respect _Float128.

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

re PR rtl-optimization/77416 (LRA rematerializing use of CA reg across function call)

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

Fix PR c++/77639 (ICE during error recovery)

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

libstdc++/77645 fix deque and vector xmethods for Python 3

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

pr57558-1.c: Use unsigned int instead of unsigned long.

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

From-SVN: r240239

[simplify-rtx] (GTU (PLUS a C) (C - 1)) --> (LTU a -C)

* 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

Make libstdc++ tests FAIL on Python errors

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

From-SVN: r240237

Fix lra_p text

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

From-SVN: r240236

Improve pretty printer for std::variant

* 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

libstdc++/77645 Fix xmethods for std::list

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

re PR ipa/77587 (C compiler produces incorrect stack alignment with __attribute__((weak)))

PR target/77587
* cgraph.c (cgraph_node::rtl_info): Pass &avail to
ultimate_alias_target call, return NULL if avail < AVAIL_AVAILABLE.
Call ultimate_alias_target just once, not up to 4 times.

* gcc.dg/pr77587.c: New test.
* gcc.dg/pr77587a.c: New file.

Co-Authored-By: Jan Hubicka <jh@suse.cz>
From-SVN: r240232

libcaf.h: Add caf_reference_type.

libgfortran/ChangeLog:

2016-09-19  Andre Vehreschild  <vehre@gcc.gnu.org>

* caf/libcaf.h: Add caf_reference_type.
* caf/mpi.c: Adapted signature of caf_register().
* caf/single.c (struct caf_single_token): Added to keep the pointer
to the memory registered and array descriptor.
(caf_internal_error): Added convenience interface.
(_gfortran_caf_register): Adapted to work with caf_single_token and
return memory in the array descriptor.
(_gfortran_caf_deregister): Same.
(assign_char1_from_char4): Fixed style.
(convert_type): Fixed incorrect conversion.
(_gfortran_caf_get): Adapted to work with caf_single_token.
(_gfortran_caf_send): Same.
(_gfortran_caf_sendget): Same.
(copy_data): Added to stop repeating it in all _by_ref functions.
(get_for_ref): Recursive getting of coarray data using a chain of
references.
(_gfortran_caf_get_by_ref): Driver for computing the memory needed for
the get and checking properties of the operation.
(send_by_ref): Same as get_for_ref but for sending data.
(_gfortran_caf_send_by_ref): Same like caf_get_by_ref but for sending.
(_gfortran_caf_sendget_by_ref): Uses get_by_ref and send_by_ref to
implement sendget for reference chains.
(_gfortran_caf_atomic_define): Adapted to work with caf_single_token.
(_gfortran_caf_atomic_ref): Likewise.
(_gfortran_caf_atomic_cas): Likewise.
(_gfortran_caf_atomic_op): Likewise.
(_gfortran_caf_event_post): Likewise.
(_gfortran_caf_event_wait): Likewise.
(_gfortran_caf_event_query): Likewise.
(_gfortran_caf_lock): Likewise.
(_gfortran_caf_unlock): Likewise.

gcc/testsuite/ChangeLog:

2016-09-19  Andre Vehreschild  <vehre@gcc.gnu.org>

* gfortran.dg/coarray/alloc_comp_4.f90: New test.
* gfortran.dg/coarray_38.f90:
* gfortran.dg/coarray_alloc_comp_1.f08: New test.
* gfortran.dg/coarray_alloc_comp_2.f08: New test.
* gfortran.dg/coarray_allocate_7.f08: New test.
* gfortran.dg/coarray_allocate_8.f08: New test.
* gfortran.dg/coarray_allocate_9.f08: New test.
* gfortran.dg/coarray_lib_alloc_1.f90: Adapted scan-tree-dumps to expect
new caf_register.
* gfortran.dg/coarray_lib_alloc_2.f90: Same.
* gfortran.dg/coarray_lib_alloc_3.f90: Same.
* gfortran.dg/coarray_lib_comm_1.f90: Adapted scan-tree-dumps to expect
get_by_refs.
* gfortran.dg/coarray_lib_token_3.f90: Same as for coarray_lib_alloc2.
* gfortran.dg/coarray_lock_7.f90: Same.
* gfortran.dg/coarray_poly_5.f90: Same.
* gfortran.dg/coarray_poly_6.f90: Same.
* gfortran.dg/coarray_poly_7.f90: Same.
* gfortran.dg/coarray_poly_8.f90: Same.
* gfortran.dg/coindexed_1.f90: Changed errors expected.

gcc/fortran/ChangeLog:

2016-09-19  Andre Vehreschild  <vehre@gcc.gnu.org>

* expr.c (gfc_check_assign): Added flag to control whether datatype
conversion is allowed.
* gfortran.h: Added caf-token-tree to gfc_component.  Changed
prototypes mostly to add whether datatype conversion is allowed.
* gfortran.texi: Added documentation for the caf_reference_t and the
caf_*_by_ref function.
* primary.c (caf_variable_attr): Similar to gfc_variable_attr but
focused on the needs of coarrays.
(gfc_caf_attr): Same.
* resolve.c (resolve_ordinary_assign): Set the conversion allowed
flag when not in a coarray.
* trans-array.c (gfc_array_init_size): Moved setting of array
descriptor's datatype before the alloc, because caf_register needs it.
(gfc_array_allocate): Changed notion of whether an array is a coarray.
(gfc_array_deallocate): Same.
(gfc_alloc_allocatable_for_assignment): Added setting of coarray's
array descriptor datatype before the register.  And using deregister/
register to mimmick a realloc for coarrays.
* trans-decl.c (gfc_build_builtin_function_decls): Corrected signatures
of old caf-functions and added signature definitions of the _by_ref
ones.
(generate_coarray_sym_init): Adapted to new caf_register signature.
* trans-expr.c (gfc_conv_scalar_to_descriptor): Make sure a constant
is translated to an lvalue expression before use in an array
descriptor.
(gfc_get_ultimate_alloc_ptr_comps_caf_token): New function.  Get the
last allocatable component's coarray token.
(gfc_get_tree_for_caf_expr): For top-level object get the coarray
token and check for unsupported features.
(gfc_get_caf_token_offset): Getting the offset might procude new
statements, which now are stored in the pre and post of the current se.
(gfc_caf_get_image_index): For this image return a call to
caf_this_image.
(expr_may_alias_variables): Check that the result is set for testing
its properties.
(alloc_scalar_allocatable_for_assignment): Added auto allocation of
coarray components.
(gfc_trans_assignment_1): Rewrite an assign to a coarray object to
be a sendget.
* trans-intrinsic.c (conv_caf_vector_subscript_elem): Corrected
wrong comment.
(compute_component_offset): Compute the correct offset a structure
member.
(conv_expr_ref_to_caf_ref): Convert to a chain of refs into
caf_references.
(gfc_conv_intrinsic_caf_get): Call caf_get_by_ref instead of caf_get.
(conv_caf_send): Call caf_*_by_ref for coarrays that need
reallocation.
(gfc_conv_intrinsic_function): Adapted to new signuature of the caf
drivers.
(conv_intrinsic_atomic_op): Add pre and post statements correctly.
(conv_intrinsic_atomic_ref): Same.
(conv_intrinsic_atomic_cas): Same.
(conv_intrinsic_event_query): Same.
* trans-stmt.c (gfc_trans_lock_unlock): Same.
(gfc_trans_event_post_wait): Same.
(gfc_trans_allocate): Support allocation of allocatable coarrays.
(gfc_trans_deallocate): And there deallocation.
* trans-types.c (gfc_typenode_for_spec): Added flag to control whether
a component is part of coarray.  When so, then add space to store a
coarray token.
(gfc_build_array_type): Same.
(gfc_get_array_descriptor_base): Same.
(gfc_get_array_type_bounds): Same.
(gfc_sym_type): Same.
(gfc_get_derived_type): Same.
(gfc_get_caf_reference_type): Declare the caf_reference_type.
* trans-types.h: Prototype changes only.
* trans.c (gfc_allocate_using_lib): Use the updated caf_register
signature.
(gfc_allocate_allocatable): Same.
(gfc_deallocate_with_status): Same.
* trans.h: Defined the runtime types for caf_reference_t and the enums.

From-SVN: r240231

re PR fortran/77584 (Unclassifiable statement error with procedure pointer using template named "structure_")

2016-09-19  Fritz Reese  <fritzoreese@gmail.com>

PR fortran/77584
* gcc/fortran/decl.c (match_record_decl, gfc_match_decl_type_spec):
Fixes to handling of structure/record from declaration-type-spec.

* gcc/testsuite/gfortran.dg/dec_structure_15.f90: New testcase.

From-SVN: r240230

Fix zero-length parameter bug in pex_run.

2016-09-19  Andrew Stubbs  <ams@codesourcery.com>

libiberty/
* pex-win32.c (argv_to_cmdline): Quote zero-length parameters.

libiberty/testsuite/
* test-pexecute.c (main): Insert check for zero-length parameters.

From-SVN: r240229

dwarf2out.c (early_dwarf_finished): New global.

2016-09-16  Richard Biener  <rguenther@suse.de>

* dwarf2out.c (early_dwarf_finished): New global.
(set_early_dwarf::set_early_dwarf): Assert early_dwarf_finished
is false.
(dwarf2out_early_finish): Set early_dwarf_finished at the end,
if called from LTO exit early.
(dwarf2out_late_global_decl): When being during the early
debug phase do not add locations but only const value attributes.
Adjust the way we generate early DIEs for LTO.

lto/
* lto.c (lto_main): Invoke early_finish debug hook.

From-SVN: r240228

re PR tree-optimization/77605 (wrong code at -O3 on x86_64-linux-gnu)

2016-09-19  Richard Biener  <rguenther@suse.de>

PR middle-end/77605
* tree-data-ref.c (analyze_subscript_affine_affine): Use the
proper niter to bound the loops.

* gcc.dg/torture/pr77605.c: New testcase.

From-SVN: r240227

re PR tree-optimization/77514 (ICE in VN_INFO_GET, at tree-ssa-sccvn.c:406 w/ -O2 (and above))

2016-09-19  Richard Biener  <rguenther@suse.de>

PR tree-optimization/77514
* tree-ssa-pre.c (create_expression_by_pieces): Optimize
search for folded stmt.

From-SVN: r240226

pr68078.f90: XFAIL run on Darwin

2016-09-18  Louis Krupp  <louis.krupp@zoho.com>

* gfortran.dg/pr68078.f90: XFAIL run on Darwin

From-SVN: r240225

Daily bump.

From-SVN: r240224

passes.def (pass_early_thread_jumps): Schedule after forwprop.

* passes.def (pass_early_thread_jumps): Schedule after forwprop.
* tree-pass.h (make_pass_early_thread_jumps): Declare.
* tree-ssa-threadbackward.c (fsm_find_thread_path,
fsm_find_thread_path, profitable_jump_thread_path,
fsm_find_control_statement_thread_paths,
find_jump_threads_backwards): Add speed_p parameter.
(pass_data_early_thread_jumps): New pass.
(make_pass_early_thread_jumps): New function.

* g++.dg/predict-loop-exit-1.C: Disable early jump threading.
* g++.dg/predict-loop-exit-2.C: Disable early jump threading.
* g++.dg/predict-loop-exit-3.C: Disable early jump threading.
* gcc.dg/tree-ssa/pr69196-1.c: Disable early jump threading.
* gcc.dg/tree-ssa/vrp01.c: Disable early jump threading.
* gcc.dg/tree-ssa/ssa-dom-thread-2b.c: Disable early jump threading.
* gcc.dg/tree-ssa/pr68198.c: Scan ethread dump.
* gcc.dg/tree-ssa/ssa-thread-13.c: Scan ethread dump.
* gcc.dg/tree-ssa/vrp56.c: Scan ethread dump.
* gcc.dg/tree-ssa/vrp92.c: Scan ethread dump.
* gcc.dg/uninit-15.c: Swap xfailed and non-xfailed alternative.

From-SVN: r240221

pr68633.c: Fix expected result.

gcc/testsuite/
* gcc.target/i386/pr68633.c: Fix expected result.

From-SVN: r240220

re PR fortran/68078 (segfault with allocate and stat for derived types with default initialization)

2016-09-17  Louis Krupp  <louis.krupp@gmail.com>

PR fortran/68078
* gfortran.dg/pr68078.f90: New test.
* gfortran.dg/set_vm_limit.c: New, called by pr68078.

2016_09_17  Louis Krupp  <louis.krupp@zoho.com>

PR fortran/68078
* resolve.c (resolve_allocate_expr): Check that derived type
pointer, object or array has been successfully allocated before
initializing.

From-SVN: r240219

Daily bump.

From-SVN: r240218

Define pretty printers for C++17 library components

* python/libstdcxx/v6/printers.py (StdVariantPrinter): Define.
(StdExpAnyPrinter, StdExpOptionalPrinter, StdExpStringViewPrinter):
Register for C++17 components in namespace std. Strip inline namespace
from typename.

From-SVN: r240215

ia64.h (ASM_OUTPUT_DWARF_OFFSET): Add cast.

* config/ia64/ia64.h (ASM_OUTPUT_DWARF_OFFSET): Add cast.
* config/i386/cygming.h (ASM_OUTPUT_DWARF_OFFSET): Likewise.

From-SVN: r240214

Daily bump.

From-SVN: r240213

Remove bogus entry in ChangeLog added by git-svn

From-SVN: r240206

Fix documentation for overflow-checking builtins

* doc/extend.texi (Integer Overflow Builtins): Fix type of out
parameters for functions taking long long arguments.

From-SVN: r240205

Fix typo in Libstdc++ Profile Mode docs

* doc/xml/manual/profile_mode.xml: Fix typo.
* doc/html/manual/profile_mode_devel.html: Regenerate.

From-SVN: r240204

recog.c (rest_of_handle_split_after_reload): Delete.

* recog.c (rest_of_handle_split_after_reload): Delete.
(pass_split_after_reload::gate): New method.
(pass_split_after_reload::execute): Call split_all_insns directly.

From-SVN: r240203

Fix documentation for overflow-checking builtins

* doc/extend.texi (Integer Overflow Builtins): Fix type of out
parameters for functions taking long long arguments.

From-SVN: r240200

re PR target/77613 (Powerpc64le: redundant swaps in autovectorised loop)

[gcc]

2016-09-16  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

PR target/77613
* config/rs6000/rs6000.c (rtx_is_swappable_p): Add support for
splat with truncate.

[gcc/testsuite]

2016-09-16  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

PR target/77613
* gcc.target/powerpc/swaps-p8-25.c: New.

From-SVN: r240199

re PR c++/77482 (Segfault when compiling ill-formed constexpr code)

PR c++/77482
* error.c (dump_simple_decl): Only check DECL_DECLARED_CONCEPT_P
if DECL_LANG_SPECIFIC is non-NULL.  Fix up formatting.

* g++.dg/cpp0x/constexpr-77482.C: New test.

From-SVN: r240198

re PR c++/77379 (incorrect mangling for non-virtual adjustor thunk (missing abi tag))

PR c++/77379
* g++.dg/abi/abi-tag23.C: Adjust scan-assembler regex for differing
thunk offsets.
* g++.dg/abi/abi-tag23a.C: Likewise.

From-SVN: r240197

re PR c++/77338 (ICE on invalid C++11 code on x86_64-linux-gnu: Segmentation fault)

PR c++/77338
* constexpr.c (cxx_eval_constant_expression) <case PARM_DECL>: Only
call is_really_empty_class on complete types.

* g++.dg/cpp0x/decltype-77338.C: New test.

From-SVN: r240196

re PR c++/77375 (constant object with mutable subobject allocated in read-only memory)

PR c++/77375
* class.c (check_bases): Set CLASSTYPE_HAS_MUTABLE if any TYPE_HAS_MUTABLE_P
for any bases.

* g++.dg/cpp0x/mutable1.C: New test.

From-SVN: r240195

Add inline functions for various bitwise operations.

* hwint.h (least_bit_hwi, pow2_or_zerop, pow2p_hwi, ctz_or_zero):
New.
* hwint.c (exact_log2): Use pow2p_hwi.
(ctz_hwi, ffs_hwi): Use least_bit_hwi.
* alias.c (memrefs_conflict_p): Use pow2_or_zerop.
* builtins.c (get_object_alignment_2, get_object_alignment)
(get_pointer_alignment, fold_builtin_atomic_always_lock_free): Use
least_bit_hwi.
* calls.c (compute_argument_addresses, store_one_arg): Use
least_bit_hwi.
* cfgexpand.c (expand_one_stack_var_at): Use least_bit_hwi.
* combine.c (force_to_mode): Use least_bit_hwi.
* emit-rtl.c (set_mem_attributes_minus_bitpos, adjust_address_1):
Use least_bit_hwi.
* expmed.c (synth_mult, expand_divmod): Use ctz_or_zero, ctz_hwi.
(init_expmed_one_conv): Use pow2p_hwi.
* fold-const.c (round_up_loc, round_down_loc): Use pow2_or_zerop.
(fold_binary_loc): Use pow2p_hwi.
* function.c (assign_parm_find_stack_rtl): Use least_bit_hwi.
* gimple-fold.c (gimple_fold_builtin_memory_op): Use pow2p_hwi.
* gimple-ssa-strength-reduction.c (replace_ref): Use least_bit_hwi.
* hsa-gen.c (gen_hsa_addr_with_align, hsa_bitmemref_alignment):
Use least_bit_hwi.
* ipa-cp.c (ipcp_alignment_lattice::meet_with_1): Use least_bit_hwi.
* ipa-prop.c (ipa_modify_call_arguments): Use least_bit_hwi.
* omp-low.c (oacc_loop_fixed_partitions)
(oacc_loop_auto_partitions): Use least_bit_hwi.
* rtlanal.c (nonzero_bits1): Use ctz_or_zero.
* stor-layout.c (place_field): Use least_bit_hwi.
* tree-pretty-print.c (dump_generic_node): Use pow2p_hwi.
* tree-sra.c (build_ref_for_offset): Use least_bit_hwi.
* tree-ssa-ccp.c (ccp_finalize): Use least_bit_hwi.
* tree-ssa-math-opts.c (bswap_replace): Use least_bit_hwi.
* tree-ssa-strlen.c (handle_builtin_memcmp): Use pow2p_hwi.
* tree-vect-data-refs.c (vect_analyze_group_access_1)
(vect_grouped_store_supported, vect_grouped_load_supported)
(vect_permute_load_chain, vect_shift_permute_load_chain)
(vect_transform_grouped_load): Use pow2p_hwi.
* tree-vect-generic.c (expand_vector_divmod): Use ctz_or_zero.
* tree-vect-patterns.c (vect_recog_divmod_pattern): Use ctz_or_zero.
* tree-vect-stmts.c (vectorizable_mask_load_store): Use
least_bit_hwi.
* tsan.c (instrument_expr): Use least_bit_hwi.
* var-tracking.c (negative_power_of_two_p): Use pow2_or_zerop.

From-SVN: r240194

re PR libgcc/71744 (Concurrently throwing exceptions is not scalable)

PR libgcc/71744
* unwind-dw2-fde.c (ATOMIC_FDE_FAST_PATH): Define if __register_frame*
is not the primary registry and atomics are available.
(any_objects_registered): New variable.
(__register_frame_info_bases, __register_frame_info_table_bases):
Atomically store 1 to any_objects_registered after registering first
unwind info.
(_Unwind_Find_FDE): Return early if any_objects_registered is 0.

From-SVN: r240193

Replace modulus with mask operation in over-aligned new

2016-09-16  Jonathan Wakely  <jwakely@redhat.com>
    Marc Glisse  <marc.glisse@inria.fr>

* libsupc++/new_opa.cc [_GLIBCXX_HAVE_ALIGNED_ALLOC]
(operator new(size_t, align_val_t)): Replace modulus operator with
mask.

Co-Authored-By: Marc Glisse <marc.glisse@inria.fr>
From-SVN: r240192

re PR fortran/77612 (ICE on invalid character len in contained procedure)

2016-09-16  Steven G. Kargl  <kargl@gcc.gnu.org>

PR fortran/77612
* decl.c (char_len_param_value): Check parent namespace for
seen_implicit_none.

2016-09-16  Steven G. Kargl  <kargl@gcc.gnu.org>

PR fortran/77612
* gfortran.dg/pr77612.f90: New test.

From-SVN: r240191

Adjust arguments to aligned_alloc or posix_memalign

* libsupc++/new_opa.cc [_GLIBCXX_HAVE_POSIX_MEMALIGN] (aligned_alloc):
Increase alignment if less than sizeof(void*).
[_GLIBCXX_HAVE_ALIGNED_ALLOC] (operator new(size_t, align_val_t)):
Increase size if not a multiple of alignment.

From-SVN: r240187

Fix testsuite failure for avr target

The test has integer literals that only fit on a target with int size 32+.

gcc/testsuite/

2016-09-16  Senthil Kumar Selvaraj  <senthil_kumar.selvaraj@atmel.com>

* gcc.dg/torture/pr70421.c: Require int32plus.

From-SVN: r240186

* c-typeck.c (lvalue_p): Use true and false instead of 1 and 0.

From-SVN: r240185

ia64.h (ASM_OUTPUT_DWARF_OFFSET): Use parameter OFFSET, not offset.

* config/ia64/ia64.h (ASM_OUTPUT_DWARF_OFFSET): Use parameter
OFFSET, not offset.
* config/i386/cygming.h (ASM_OUTPUT_DWARF_OFFSET): Likewise.

From-SVN: r240176

re PR middle-end/77475 (unnecessary or misleading context in reporting command line problems)

PR middle-end/77475
* gcc.target/i386/pr65990.c: Adjust dg-error regexp.

From-SVN: r240175

re PR target/77526 (ICE: in verify_dominators, at dominance.c:1039 with -mstringop-strategy=byte_loop)

PR target/77526
* combine.c (rest_of_handle_combine): If any edges have been purged,
free dominators if available.

* gcc.target/i386/pr77526.c: New test.

From-SVN: r240174

re PR middle-end/77594 (double computation for __builtin_sub_overflow (0, ...))

PR middle-end/77594
* internal-fn.c (expand_arith_overflow) <case MINUS_EXPR>: Don't fall
through into expand_addsub_overflow after expand_neg_overflow.

* gcc.target/i386/pr77594.c: New test.

Co-Authored-By: Eric Botcazou <ebotcazou@adacore.com>
From-SVN: r240173

Daily bump.

From-SVN: r240172

fix-it hints can't contain newlines

I hope to implement newline support within fix-it hints at some point,
but currently it's not supported, and leads to misleading diagnostic
output, so for now, fail gracefully.

gcc/ChangeLog:
* diagnostic-show-locus.c
(selftest::test_fixit_insert_containing_newline): New function.
(selftest::test_fixit_replace_containing_newline): New function.
(selftest::diagnostic_show_locus_c_tests): Call the above.

libcpp/ChangeLog:
* include/line-map.h (class rich_location): Note that newlines
aren't supported in fix-it text.
* line-map.c (rich_location::add_fixit_insert_before): Reject
attempts to add fix-its containing newlines.
(rich_location::add_fixit_replace): Likewise.

From-SVN: r240169

re PR fortran/69963 (ICE out of memory on displaced implicit character)

2016-09-15  Louis Krupp  <louis.krupp@zoho.com>
PR fortran/69963
* parse.c (reject_statement): Clear charlen pointers in implicit
character typespecs before those charlen structures are freed.

2016-09-15  Louis Krupp  <louis.krupp@zoho.com>

PR fortran/69963
* gfortran.dg/misplaced_implicit_character.f90: New test.

From-SVN: r240168

c-common.c (check_cxx_fundamental_alignment_constraints): Check DECL_EXTERNAL.

* c-common.c (check_cxx_fundamental_alignment_constraints): Check
DECL_EXTERNAL.

From-SVN: r240167

re PR tree-optimization/77503 (ICE in vect_transform_stmt compiling postgresql)

PR tree-optimization/77503
* tree-vect-loop.c (vectorizable_reduction): Record reduction
code for CONST_COND_REDUCTION at analysis stage and use it at
transform stage.
* tree-vectorizer.h (struct _stmt_vec_info): New field.
(STMT_VINFO_VEC_CONST_COND_REDUC_CODE): New macro.
* tree-vect-stmts.c (new_stmt_vec_info): Initialize above new
field.

gcc/testsuite
* gcc.dg/vect/pr77503.c: New test.

From-SVN: r240166

re PR tree-optimization/77544 (segfault at -O0 - infinite loop in simplification)

2016-09-15  Richard Biener  <rguenther@suse.de>

PR middle-end/77544
* fold-const.c (split_tree): Do not split constant ~X.

* c-c++-common/torture/pr77544.c: New testcase.

From-SVN: r240164

re PR rtl-optimization/77425 (Pointer test follows dereference in sched-int.h)

PR rtl-optimization/77425
* sched-int.h (sd_iterator_cond): Don't update it_ptr->linkp if list
is NULL.

From-SVN: r240163

re PR middle-end/77475 (unnecessary or misleading context in reporting command line problems)

PR middle-end/77475
* config/i386/i386.c (ix86_parse_stringop_strategy_string): Simplify,
use %qs instead of %s where desirable, use argument instead of arg in
the diagnostic wording, add list of supported strategies and
spellcheck hint.
(ix86_option_override_internal): Emit target("m...") instead of
option("m...") in the diagnostic.  Use %qs instead of %s in invalid
-march/-mtune option diagnostic.  Add list of supported arches/tunings
and spellcheck hint.  Remove prefix, suffix and sw variables, use
main_args_p ? "..." : "..." in diagnostics to make translation
possible.

* gcc.target/i386/pr65990.c: Adjust expected diagnostics.
* gcc.dg/march-generic.c: Likewise.
* gcc.target/i386/spellcheck-options-1.c: New test.
* gcc.target/i386/spellcheck-options-2.c: New test.
* gcc.target/i386/spellcheck-options-3.c: New test.
* gcc.target/i386/spellcheck-options-4.c: New test.

From-SVN: r240162

Editorial fixes to libstdc++ debug mode docs

* doc/xml/manual/debug_mode.xml: Minor editorial fixes.
* doc/html/*: Regenerate.

From-SVN: r240161