compiler: centralize all symbol name handling

    Consolidate all symbol name handling into the new file names.cc.  This
    is intended to define all the names that will appear in the generated
    assembly code.  Names that will not appear in the assembly code, such
    as local variable names or label names, remain where they are.

    This consolidation is not intended to change any of the existing
    symbol names.  Tested by building without and without this patch and
    comparing the libgo symbol table.

    Reviewed-on: https://go-review.googlesource.com/68310

* Make-lang.in (GO_OBJS): Add go/names.o.

From-SVN: r253458

elf.c (elf_zlib_fetch): Change pval argument to uint64_t *.

* elf.c (elf_zlib_fetch): Change pval argument to uint64_t *.
Read a four byte integer.
(elf_zlib_inflate): Change val to uint64_t.  Align pin to a 32-bit
boundary before ever calling elf_zlib_fetch.
* ztest.c (test_large): Simplify print statements a bit.

From-SVN: r253456

re PR ada/82393 (Compilation error on cygwin64)

PR ada/82393
* mingw32.h (_O_U8TEXT, _O_U16TEXT, _O_WTEXT): Delete.
* sysdep.c (__gnat_set_mode ): Use DJGPP version for Cygwin.

From-SVN: r253454

i386.c (ia32_multipass_dfa_lookahead): Default to issue rate for post-reload scheduling.

* i386.c (ia32_multipass_dfa_lookahead): Default to issue rate
for post-reload scheduling.

From-SVN: r253453

slp-perm-9.c: Use vect_sizes_16B_8B.

gcc/testsuite/
2017-10-05  Tamar Christina  <tamar.christina@arm.com>

* gcc.dg/vect/slp-perm-9.c: Use vect_sizes_16B_8B.
* lib/target-supports.exp (vect_sizes_16B_8B): New.

gcc/
2017-10-05  Tamar Christina  <tamar.christina@arm.com>

* doc/sourcebuild.texi (vect_sizes_16B_8B, vect_sizes_32B_16B): New.

From-SVN: r253452

vect-align-1.c: Fix vect_hw_misalign condition.

2017-09-28  Tamar Christina  <tamar.christina@arm.com>

* gcc.dg/vect/vect-align-1.c: Fix vect_hw_misalign condition.
* gcc.dg/vect/vect-align-2.c: Likewise.
* gcc.dg/vect/vect-multitypes-1.c: Likewise

From-SVN: r253451

i386.c (znver1_cost): Set branch_cost to 3 (instead of 2) to improve monte carlo in scimark.

* i386.c (znver1_cost): Set branch_cost to 3 (instead of 2)
to improve monte carlo in scimark.

From-SVN: r253449

i386.c (ix86_size_cost, [...]): Set reassociation width to 1.

* i386.c (ix86_size_cost, i386_cost, i486_cost, pentium_cost,
lakemont_cost, pentiumpro_cost, geode_cost, k6_cost,
athlon_cost, k8_cost, amdfam10_cost, btver1_cost, btver2_cost,
pentium4_cost, nocona_cost): Set reassociation width to 1.
(bdver1_cost, bdver2_cost, bdver3_cost, bdver4_cost): Set reassociation
width to 2 for fp operations and 1 otherwise.
(znver1_cost): Set scalar reassoc width to 4 and vector to 3 and 6
for int and fp.
(atom_cost): Set reassociation width to 2.
(slm_cost, generic_cost): Set fp reassociation width to 2 and 1 otherwise.
(intel_cost): Set fp reassociation width to 4 and 1 otherwise.
(core_cost): Set fp reassociation width to 4 and vector to 2.
(ix86_reassociation_width): Rewrite using cost table; special case
plus/minus on Zen; honor X86_TUNE_SSE_SPLIT_REGS
and TARGET_AVX128_OPTIMAL.
* i386.h (processor_costs): Add
reassoc_int, reassoc_fp, reassoc_vec_int, reassoc_vec_fp.
(TARGET_VECTOR_PARALLEL_EXECUTION, TARGET_REASSOC_INT_TO_PARALLEL,
TARGET_REASSOC_FP_TO_PARALLEL): Remove.
* x86-tune.def (X86_TUNE_REASSOC_INT_TO_PARALLEL): Remove.
(X86_TUNE_REASSOC_FP_TO_PARALLEL): Remove.
(X86_TUNE_VECTOR_PARALLEL_EXECUTION):  Remove.

From-SVN: r253448

Re: [PATCH] C++ warning on vexing parse

https://gcc.gnu.org/ml/gcc-patches/2017-10/msg00249.html
gcc/cp/
Warn on MVP declarations
* cp-tree.h (struct cp_declarator): Add parenthesized field.
* decl.c (grokdeclarator): Warn about unnecessary parens.
* parser.c (make_declarator): Init parenthesized field.
(cp_parser_direct_declarator): Set parenthesized field.

gcc/
* doc/invoke.texi (Wparentheses): Document C++ MVP behaviour.

gcc/testsuite/
* g++.dg/warn/mvp.C: New.

From-SVN: r253446

[C++ PATCH] Kill IDENTIFIER_GLOBAL_VALUE

https://gcc.gnu.org/ml/gcc-patches/2017-10/msg00239.html
Kill IDENTIFIER_GLOBAL_VALUE, SET_IDENTIFIER_GLOBAL_VALUE
* cp-tree.h (IDENTIFIER_GLOBAL_VALUE,
SET_IDENTIFIER_GLOBAL_VALUE): Delete.
* name-lookup.h (set_global_binding): Remove NAME parm.
(get_global_binding): New inline fn.
* name-lookup.c (set_global_binding): Remove NAME parm. Adjust.
(identifier_global_value): Move to ...
* cp-objcp-common.c (identifier_global_value): ... here.
* class.c (build_ctor_vtbl_group, build_vtbl_initializer): Adjust.
* decl.c (record_builtin_type, expand_static_init,
grokdeclarator): Adjust.
* decl2.c (get_guard, get_local_tls_init_fn, get_tls_init_fn,
get_tls_wrapper_fn, maybe_warn_sized_delete): Adjust.
* except.c (declare_library_fn, build_throw): Adjust.
* init.c (throw_bad_array_length): Adjust.
* rtti.c (throw_bad_cast, throw_bad_typeid, get_tinfo_decl): Adjust.

From-SVN: r253444

arm.c (arm_test_fpu_data): New.

2017-10-05  Tamar Christina  <tamar.christina@arm.com>

* config/arm/arm.c (arm_test_fpu_data): New.
(arm_run_selftests): Call arm_test_fpu_data.

From-SVN: r253443

Add sanitizer_linux_x86_64.lo if __x86_64__ is defined by $CC

Since size of "void *" is 4 bytes for x32, check if __x86_64__ is defined
by $CC, instead of

if test x$ac_cv_sizeof_void_p = x8; then

to decide wether sanitizer_linux_x86_64.lo should be used.

PR sanitizer/82379
* configure.tgt (SANITIZER_COMMON_TARGET_DEPENDENT_OBJECTS): Set
to sanitizer_linux_x86_64.lo if __x86_64__ is defined by $CC.

From-SVN: r253441

Re: [C++ PATCH] Move mangling alias out of ::

https://gcc.gnu.org/ml/gcc-patches/2017-10/msg00230.html
* decl2.c (record_mangling): Fix spello and formatting from
previous patch.

From-SVN: r253440

Fix libgomp.oacc-c-c++-common/{loop-red-g-1,routine-g-1}.c for non-nvidia devices

2017-10-05  Tom de Vries  <tom@codesourcery.com>

* testsuite/libgomp.oacc-c-c++-common/loop-red-g-1.c (main): Remove
vector_length(32) clause from acc parallel directive.
* testsuite/libgomp.oacc-c-c++-common/routine-g-1.c (main): Same.

From-SVN: r253439

pr82374.c (SIZE): Change from 1G to 1M to make it ilp32 friendly.

* gcc.dg/gomp/pr82374.c (SIZE): Change from 1G to 1M to make it ilp32
friendly.

From-SVN: r253438

id-17.f: Fix typo.

2017-10-05  Richard Biener  <rguenther@suse.de>

* gfortran.dg/graphite/id-17.f: Fix typo.
* gfortran.dg/graphite/id-19.f: Likewise.
* gfortran.dg/graphite/pr29832.f90: Likewise.
* gfortran.dg/graphite/pr42326-1.f90: Likewise.
* gfortran.dg/graphite/pr42326.f90: Likewise.
* gfortran.dg/graphite/pr68550-2.f90: Likewise.
* gfortran.dg/graphite/run-id-2.f90: Likewise.
* gfortran.dg/graphite/run-id-3.f90: Likewise.

From-SVN: r253437

Daily bump.

From-SVN: r253436

re PR c++/80471 ((gcc extension) Forwarding-reference `auto` function parameters do not follow the same rules as template functions or generic lambdas)

2017-10-04  Paolo Carlini  <paolo.carlini@oracle.com>

PR c++/80471
* g++.dg/cpp1y/pr80471.C: New.

From-SVN: r253432

re PR c++/78131 (Inconsistent evaluation for `constexpr` lambdas in templates between `static_assert`, `if constexpr(…)` and `constexpr` variables)

2017-10-04  Paolo Carlini  <paolo.carlini@oracle.com>

PR c++/78131
* g++.dg/cpp1z/constexpr-lambda17.C: New.

From-SVN: r253431

re PR c++/78018 ([C++14] "internal compiler error: Segmentation fault" with templates and lambdas)

2017-10-04  Paolo Carlini  <paolo.carlini@oracle.com>

PR c++/78018
* g++.dg/cpp1y/lambda-generic-78018.C: New.

From-SVN: r253430

[PATCH] remove some unneeded parens

https://gcc.gnu.org/ml/gcc-patches/2017-10/msg00200.html
* toplev.c (toplev::main): Remove excess parens on pretty_printer
decl.
* caller-save.c (insert_save): Remove excess parens on TO_SAVE parm.

From-SVN: r253427

[C++ PATCH] give builtin types consistent name

https://gcc.gnu.org/ml/gcc-patches/2017-10/msg00201.html
Give builtin types the correct name.
* name-lookup.c (set_global_binding): Assert name is DECL_NAME.
* decl.c (record_builtin_type): Reimplement, use new TYPE_DECL for
rname.

From-SVN: r253426

PR c++/82406 - C++17 error with noexcept function type

* g++.dg/ext/attrib54.C: New.

From-SVN: r253425

re PR c++/71946 (asm in toplevel lambda function rejected)

/cp
2017-10-04  Paolo Carlini  <paolo.carlini@oracle.com>
    Andrew Pinski  <apinski@cavium.com>

PR c++/71946
* parser.c (cp_parser_lambda_body): Set parser->in_function_body.

/testsuite
2017-10-04  Paolo Carlini  <paolo.carlini@oracle.com>
    Andrew Pinski  <apinski@cavium.com>

PR c++/71946
* g++.dg/cpp0x/lambda/lambda-asm1.C: New.
* g++.dg/cpp0x/lambda/lambda-stmtexpr1.C: Likewise.

Co-Authored-By: Andrew Pinski <apinski@cavium.com>
From-SVN: r253423

[PATCH][AArch64] Add BIC-imm and ORR-imm SIMD pattern

This patch adds the support for BIC (vector, immediate) and
ORR (vector, immediate) SIMD patterns to the AArch64 backend.

Committed on behalf of Sudi Das.

Reviewed-by: Richard Earnshaw <Richard.Earnshaw@arm.com>
Reviewed-by: James Greenhalgh <james.greenhalgh@arm.com>
gcc/

* config/aarch64/aarch64-protos.h (enum simd_immediate_check): New
check type for aarch64_simd_valid_immediate.
(aarch64_output_simd_mov_immediate): Update prototype.
(aarch64_simd_valid_immediate): Update prototype.
* config/aarch64/aarch64-simd.md (orr<mode>3): modified pattern to add
support for ORR-immediate.
(and<mode>3): modified pattern to add support for BIC-immediate.
* config/aarch64/aarch64.c (aarch64_simd_valid_immediate): Function
now checks for valid immediate for BIC and ORR based on new enum
argument.
(aarch64_output_simd_mov_immediate): Function now used to output
BIC/ORR imm as well based on new enum argument.
* config/aarch64/constraints.md (Do): New vector immediate constraint.
(Db) : Likewise.
* config/aarch64/predicates.md (aarch64_reg_or_orr_imm): New predicate.
(aarch64_reg_or_bic_imm): Likewise.

gcc/testsuite/

* gcc.target/aarch64/bic_imm_1.c: New test.
* gcc.target/aarch64/orr_imm_1.c: Likewise.

From-SVN: r253422

[C++ PATCH] Move mangling alias out of ::

https://gcc.gnu.org/ml/gcc-patches/2017-10/msg00199.html
gcc/cp/
Move mangling aliases out of global namespace.
* cp-tree.h (record_mangling): New.
(maybe_remove_implicit_alias): Delete.
* decl2.c (mangled_decls): New hash map.
(generate_mangling_alias): Reimplement using mangled_decls.
(record_mangling): New.
* mangle.c (decl_implicit_alias_p,
maybe_remove_implicit_alias): Delete.
(mangle_decl): Use record_mangling.
* name-lookup.c (supplement_binding_1): Remove
maybe_remove_implicit_alias check.

* call.c (convert_arg_to_ellipsis): Correct comment about passing
by reference.

gcc/testsuite/
* g++.dg/abi/mangle41.C: Adjust diagnostics.

libcc1/
* libcp1plugin.cc (supplement_binding): Don't use
maybe_remove_implicit_alias.

From-SVN: r253421

S/390: Fix mode in vector merge pattern.

vec_unpacks_hi_v4sf/vec_unpacks_lo_v4sf expand vec_mergeh and vec_mergel
patterns also for z13 with V4SF modes so the patterns should better
accept this.  Fixed by changing the mode iterator to V_128_NOSINGLE
which accepts V4SF unconditionally.

gcc/ChangeLog:

2017-10-04  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

* config/s390/vx-builtins.md ("vec_mergeh<mode>")
("vec_mergel<mode>"): Change mode iterator to V_128_NOSINGLE.

From-SVN: r253420

Revert r253399:

PR rtl-optimization/82396
* haifa-sched.c (autopref_multipass_init): Simplify
initialization.
(autopref_rank_data): Simplify sort order.
* sched-int.h (autopref_multipass_data_): Remove
multi_mem_insn_p, min_offset and max_offset.

From-SVN: r253419

re PR c++/82373 (syntax error in error message)

PR c++/82373
* error.c (dump_function_decl): If show_return, call dump_type_suffix
on the same return type dump_type_prefix has been called on.

* g++.dg/cpp1y/pr82373.C: New test.

From-SVN: r253418

2017-10-04  Petr Ovtchenkov  <ptr@void-ptr.info>
    François Dumont  <fdumont@gcc.gnu.org>

* include/bits/streambuf_iterator.h
(istreambuf_iterator<>::operator*()): Do not capture iterator state
in Debug assertion.
(istreambuf_iterator<>::operator++()): Likewise and remove _M_sbuf check.
(istreambuf_iterator<>::operator++(int)): Likewise.
(istreambuf_iterator<>::_M_get()): Remove _M_c assignment.
(istreambuf_iterator<>::_S_is_eof()): New.
(istreambuf_iterator<>::_M_at_eof()): Adapt, use latter.
(find(istreambuf_iterator<>, istreambuf_iterator<>, _CharT)):
Return an iterator with _M_c set to eof to capture streambuf state
on evaluation.
(testsuite/24_iterators/istreambuf_iterator/2.cc): Add checks.

Co-Authored-By: François Dumont <fdumont@gcc.gnu.org>
From-SVN: r253417

PR c++/81525 - broken handling of auto in generic lambda.

* pt.c (tsubst_decl) [VAR_DECL]: Use strip_innermost_template_args.

From-SVN: r253414

C: underline parameters in mismatching function calls

In r253096
  ("C++: underline parameters in mismatching function calls"
  aka 5d78d423a5f7a1d135c7bb678e82007678d1313c
    https://gcc.gnu.org/ml/gcc-patches/2017-09/msg01546.html )
I updated the C++ FE's handling of mismatched types in function calls
so that it underlines the pertinent param of the callee, rather than
just the function name.

The following patch does the same for the C frontend.

Given e.g. this type mismatch:

  extern int callee (int one, const char *two, float three);

  int caller (int first, int second, float third)
  {
    return callee (first, second, third);
  }

the C FE currently emits (trunk):

  test.c: In function 'caller':
  test.c:5:25: warning: passing argument 2 of 'callee' makes pointer from
  integer without a cast [-Wint-conversion]
     return callee (first, second, third);
                           ^~~~~~
  test.c:1:12: note: expected 'const char *' but argument is of type 'int'
   extern int callee (int one, const char *two, float three);
              ^~~~~~

whereas with this patch the note underlines the pertinent param of
the callee:

  test.c: In function 'caller':
  test.c:5:25: warning: passing argument 2 of 'callee' makes pointer from
  integer without a cast [-Wint-conversion]
     return callee (first, second, third);
                           ^~~~~~
  test.c:1:41: note: expected 'const char *' but argument is of type 'int'
   extern int callee (int one, const char *two, float three);
                               ~~~~~~~~~~~~^~~

making the problem more obvious to the user.

As with the C++ patch, the patch:

(a) updates the locations of the params to cover the range of all
of their tokens, putting the caret on the first character of the
param name (if present), otherwise at the start of the first token
(doing so requires adding a last_token_location to the c_parser, so
we can determine the location of the last consumed token).

(b) updates the "note" to use the param location, rather than the
fndecl location

gcc/c/ChangeLog:
* c-decl.c (push_parm_decl): Store c_parm's location into the
PARAM_DECL.
(build_c_parm): Add "loc" param and store it within the c_parm.
* c-parser.c (struct c_parser): Add "last_token_location" field.
(c_parser_consume_token): Store location of the token into the
new field.
(c_parser_declaration_or_fndef): Store params into DECL_ARGUMENTS
when handling a FUNCTION_DECL, if it doesn't already have them.
(c_parser_parameter_declaration): Generate a location for the
parameter, and pass it to the call to build_c_parm.
* c-tree.h (struct c_parm): Add field "loc".
(build_c_parm): Add location_t param.
* c-typeck.c (get_fndecl_argument_location): New function.
(inform_for_arg): New function.
(convert_for_assignment): Use inform_for_arg when dealing with
ic_argpass.

gcc/testsuite/ChangeLog:
* gcc.dg/diagnostic-range-bad-called-object.c: Update expected
underlining for param.
* gcc.dg/param-type-mismatch.c: Update expected results to reflect
highlighting of parameters; add test coverage for trivial
parameter decls, and for callback parameters.
* gcc.dg/pr68533.c: Update location of two errors to reflect
location of params.

From-SVN: r253411

call.c (convert_arg_to_ellipsis): Correct comment about passing by reference.

* call.c (convert_arg_to_ellipsis): Correct comment about passing
by reference.

From-SVN: r253410

jit: implement gcc_jit_context_new_rvalue_from_vector

This patch implements a new API entrypoint:

/* Build a vector rvalue from an array of elements.

   "vec_type" should be a vector type, created using gcc_jit_type_get_vector.

   This API entrypoint was added in LIBGCCJIT_ABI_10; you can test for its
   presence using
     #ifdef LIBGCCJIT_HAVE_gcc_jit_context_new_rvalue_from_vector
*/
extern gcc_jit_rvalue *
gcc_jit_context_new_rvalue_from_vector (gcc_jit_context *ctxt,
                                        gcc_jit_location *loc,
                                        gcc_jit_type *vec_type,
                                        size_t num_elements,
                                        gcc_jit_rvalue **elements);

gcc/jit/ChangeLog:
* docs/cp/topics/expressions.rst (Vector expressions): New
section.
* docs/topics/compatibility.rst (LIBGCCJIT_ABI_10): New ABI tag.
* docs/topics/expressions.rst (Vector expressions): New section.
* docs/topics/types.rst (gcc_jit_type_get_vector): Add link to
gcc_jit_context_new_rvalue_from_vector.
* jit-common.h (gcc::jit:recording::vector_type): New forward
decl.
* jit-playback.c
(gcc::jit::playback::context::new_rvalue_from_vector): New method.
* jit-playback.h
(gcc::jit::playback::context::new_rvalue_from_vector): New method.
* jit-recording.c: In namespace gcc::jit::
(class comma_separated_string): New class.
(comma_separated_string::comma_separated_string): New ctor,
adapted from recording::call::make_debug_string.
(comma_separated_string::~comma_separated_string): New dtor.
In namespace gcc::jit::recording::
(context::new_rvalue_from_vector): New method.
(type::get_vector): Update for renaming of memento_of_get_vector.
(class memento_of_get_vector): Rename to...
(class vector_type): ..this.
(memento_of_new_rvalue_from_vector::memento_of_new_rvalue_from_vector):
New ctor.
(memento_of_new_rvalue_from_vector::replay_into): New method.
(memento_of_new_rvalue_from_vector::visit_children): New method.
(memento_of_new_rvalue_from_vector::make_debug_string): New
method.
(memento_of_new_rvalue_from_vector::write_reproducer): New method.
(call::make_debug_string): Split out arg-printing code into ctor
for comma_separated_string.
* jit-recording.h: In namespace gcc::jit::recording::
(context::new_rvalue_from_vector): New method.
(type::dyn_cast_vector_type): New virtual function.
(class memento_of_get_vector): Rename to...
(class vector_type): ...this.
(vector_type::unqualified): Remove this vfunc override in favor
of...
(vector_type::get_element_type): ...this new method.
(vector_type::get_num_units): New method.
(vector_type::dyn_cast_vector_type): New vfunc override.
(class memento_of_new_rvalue_from_vector): New class.
* libgccjit++.h (gccjit::context::new_rvalue): Add overload for
vector of rvalue.
* libgccjit.c (gcc_jit_context_new_binary_op): Strip off type
qualifications when checking that both operands have same type.
(gcc_jit_context_new_rvalue_from_vector): New API entrypoint.
* libgccjit.h
(LIBGCCJIT_HAVE_gcc_jit_context_new_rvalue_from_vector): New
macro.
(gcc_jit_context_new_rvalue_from_vector): New API entrypoint.
* libgccjit.map (LIBGCCJIT_ABI_10): New ABI tag.

gcc/testsuite/ChangeLog:
* jit.dg/test-expressions.c (make_test_of_vectors): New function.
(create_code): Call it.
* jit.dg/test-vector-rvalues.cc: New test case.

From-SVN: r253409

New target check: vect_peeling_profitable

gcc/ChangeLog:

2017-10-04  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

* doc/sourcebuild.texi: Document vect_peeling_profitable.

gcc/testsuite/ChangeLog:

2017-10-04  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

* g++.dg/vect/slp-pr56812.cc: xfail for targets which don't want
vector loop peeling.
* lib/target-supports.exp (check_effective_target_vect_peeling_profitable):
New proc.

From-SVN: r253407

New target check for double<->int conversions

gcc/ChangeLog:

2017-10-04  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

* doc/sourcebuild.texi: Document vect_intdouble_cvt and
vect_doubleint_cvt.

gcc/testsuite/ChangeLog:

2017-10-04  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

* gcc.dg/vect/pr66251.c: Replace vect_floatint_cvt with
vect_doubleint_cvt and vect_intfloat_cvt with vect_intdouble_cvt.
* gcc.dg/vect/vect-floatint-conversion-2.c: Replace
vect_floatint_cvt with vect_doubleint_cvt.
* gcc.dg/vect/vect-intfloat-conversion-3.c: Replace
vect_intfloat_cvt with vect_intdouble_cvt.
* gfortran.dg/vect/pr60510.f: Require vect_intdouble_cvt.
* gfortran.dg/vect/vect-8.f90: Make number of vectorized loops
depend on vect_intdouble_cvt.
* lib/target-supports.exp
(check_effective_target_vect_doubleint_cvt)
(check_effective_target_vect_intdouble_cvt): New procs.

From-SVN: r253406

New target check: vect_long_mult

We don't have a 64 bit vector integer multiply on z.  Add a specific
check for that.

gcc/ChangeLog:

2017-10-04  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

* doc/sourcebuild.texi: Document vect_long_mult.

gcc/testsuite/ChangeLog:

2017-10-04  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

* gcc.dg/vect/pr60656.c: Check vect_long_mult.
* lib/target-supports.exp (check_effective_target_vect_long_mult):
New proc.

From-SVN: r253405

Testcases using dg-options require at least -mzarch.

Testcases which override the vect default options using dg-options
need at least -mzarch on S/390 32 bit.

gcc/testsuite/ChangeLog:

2017-10-04  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

* gfortran.dg/vect/fast-math-mgrid-resid.f: Use -mzarch on S/390.
* gfortran.dg/vect/pr77848.f: Likewise.

From-SVN: r253404

Enable vect_float with S/390 VXE and adjust testcases

The target supports routines provide vect_double and vect_float but
these do not appear to be used consequently in the vect testcases.
With z13 we only have support for vector double but with z14 also for
vector float.  This patch adds vect_float to the testcases using the
float data type and make the vect_float target check to return 1 only
on z14.

gcc/testsuite/ChangeLog:

2017-10-04  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

* lib/target-supports.exp (check_effective_target_vect_float):
Return 1 being on a S/390 with VXE.
* gcc.dg/vect/pr31699.c: Require vec_float.
* gcc.dg/vect/pr61194.c: Likewise.
* gcc.dg/vect/pr65947-10.c: Likewise.
* gcc.dg/vect/pr66142.c: Likewise.
* gcc.dg/vect/slp-10.c: Likewise.
* gcc.dg/vect/slp-11c.c: Likewise.
* gcc.dg/vect/slp-12b.c: Likewise.
* gcc.dg/vect/slp-18.c: Likewise.
* gcc.dg/vect/slp-33.c: Likewise.
* gcc.dg/vect/slp-cond-2-big-array.c: Likewise.
* gcc.dg/vect/slp-cond-2.c: Likewise.
* gcc.dg/vect/vect-cond-10.c: Likewise.
* gcc.dg/vect/vect-cond-8.c: Likewise.
* gcc.dg/vect/vect-cond-9.c: Likewise.
* gcc.dg/vect/vect-float-extend-1.c: Likewise.
* gcc.dg/vect/vect-float-truncate-1.c: Likewise.

From-SVN: r253403

Adjust test cases for attributes propagation changes for OMP outlined regions

PR tree-optimization/82374
* c-c++-common/goacc/kernels-double-reduction-n.c: Adjust for
attributes propagation changes for OMP outlined regions.
* c-c++-common/goacc/kernels-double-reduction.c: Likewise.
* c-c++-common/goacc/kernels-reduction.c: Likewise.

From-SVN: r253402

PR82413: Mismatched precisions in build_range_check

build_range_check explicitly allows LOW and HIGH to be a different type
from EXP, so we need to use w::to_widest when comparing a value based on
HIGH with a value based on EXP's type.

2017-10-04  Richard Sandiford  <richard.sandiford@linaro.org>

gcc/
PR tree-optimization/82413
* fold-const.c (build_range_check): Use widest_int when comparing
the maximum ETYPE value with HIGH.

gcc/testsuite/
PR tree-optimization/82413
* g++.dg/pr82413.C: New test.

From-SVN: r253401

re PR fortran/60458 (Error message on associate: deferred type parameter and requires either the pointer or allocatable attribute)

2017-10-04  Paul Thomas  <pault@gcc.gnu.org>

PR fortran/60458
PR fortran/77296
* resolve.c (resolve_assoc_var): Deferred character type
associate names must not receive an integer conatant length.
* symbol.c (gfc_is_associate_pointer): Deferred character
length functions also require an associate pointer.
* trans-decl.c (gfc_get_symbol_decl): Deferred character
length functions or derived type components require the assoc
name to have variable string length.
* trans-stmt.c (trans_associate_var): Set the string length of
deferred string length associate names. The address expression
is not needed for allocatable, pointer or dummy targets. Change
the comment about defered string length targets.

2017-10-04  Paul Thomas  <pault@gcc.gnu.org>

PR fortran/77296
* gfortran.dg/associate_32.f03 : New test.

From-SVN: r253400

Fix PR82396: qsort comparator non-negative on sorted output

r253236 broke AArch64 bootstrap. Earlier revision r253071 changed scheduling
behaviour on AArch64 as autopref scheduling no longer checks the base.

This patch fixes the bootstrap failure and cleans up autopref scheduling.
The code is greatly simplified.  Sort accesses on the offset first, and
only if the offsets are the same fall back to other comparisons in
rank_for_schedule.  This doesn't at all restore the original behaviour
since we no longer compare the base address, but it now defines a total
sorting order.  More work will be required to improve the sorting so
that only loads/stores with the same base are affected.

    gcc/
        PR rtl-optimization/82396
        * haifa-sched.c (autopref_multipass_init): Simplify
        initialization.
        (autopref_rank_data): Simplify sort order.
        * sched-int.h (autopref_multipass_data_): Remove
        multi_mem_insn_p, min_offset and max_offset.

From-SVN: r253399

Fix openacc float reduction testcases

2017-10-04  Tom de Vries  <tom@codesourcery.com>

* testsuite/libgomp.oacc-c-c++-common/par-loop-comb-reduction-3.c
(main): Reduce sum of arr elements.  Assert that hres is exactly
representable in 32-bit floating point.
* testsuite/libgomp.oacc-c-c++-common/par-loop-comb-reduction-4.c
(main): Reduce sum of arr elements.  Assert that hres and hmres are
exactly representable in 32-bit floating point.
* testsuite/libgomp.oacc-c-c++-common/reduction-7.c (gwv_np_4): Same.

From-SVN: r253398

re PR c++/78816 ([c++14] Static auto variable usage in generic/variadic lambda fails to compile)

2017-10-04  Paolo Carlini  <paolo.carlini@oracle.com>

PR c++/78816
* g++.dg/cpp1y/lambda-generic-variadic6.C: New.

From-SVN: r253397

re PR tree-optimization/82381 (internal compiler error: qsort checking failed)

PR tree-optimization/82381
* tree-ssa-reassoc.c (sort_by_operand_rank): Check for different
oeN->rank first.  Return 1 or -1 if one op is SSA_NAME and the other
is not.

From-SVN: r253396

re PR tree-optimization/82374 (#pragma GCC optimize is not applied to openmp-generated functions)

PR tree-optimization/82374
* omp-low.c (create_omp_child_function): Copy DECL_ATTRIBUTES,
DECL_FUNCTION_SPECIFIC_OPTIMIZATION,
DECL_FUNCTION_SPECIFIC_TARGET and DECL_FUNCTION_VERSIONED from
current_function_decl to the new decl.

* gcc.dg/gomp/pr82374.c: New test.

From-SVN: r253395

id-17.f: For ilp32 allow graphite codegen errors and scan for one.

2017-10-04  Richard Biener  <rguenther@suse.de>

* gfortran.dg/graphite/id-17.f: For ilp32 allow graphite codegen
errors and scan for one.
* gfortran.dg/graphite/id-19.f: Likewise.
* gfortran.dg/graphite/pr29832.f90: Likewise.
* gfortran.dg/graphite/pr42326-1.f90: Likewise.
* gfortran.dg/graphite/pr42326.f90: Likewise.
* gfortran.dg/graphite/pr68550-2.f90: Likewise.
* gfortran.dg/graphite/run-id-2.f90: Likewise.
* gfortran.dg/graphite/run-id-3.f90: Likewise.
* gfortran.dg/graphite/pr42393-1.f90: Dump graphite.

From-SVN: r253394

Daily bump.

From-SVN: r253393

rs6000-builtin.def (BU_FLOAT128_2_HW): Define new helper macro for IEEE float128 hardware built-in functions.

[gcc]
2017-10-03  Michael Meissner  <meissner@linux.vnet.ibm.com>

* config/rs6000/rs6000-builtin.def (BU_FLOAT128_2_HW): Define new
helper macro for IEEE float128 hardware built-in functions.
(SQRTF128_ODD): Add built-in functions with the round-to-odd
semantics.
(TRUNCF128_ODD): Likewise.
(ADDF128_ODD): Likewise.
(SUBF128_ODD): Likewise.
(MULF128_ODD): Likewise.
(DIVF128_ODD): Likewise.
(FMAF128_ODD): Likewise.
* config/rs6000/rs6000.md (UNSPEC_ROUND_TO_ODD): Rename to
UNSPEC_TRUNC_ROUND_TO_ODD.
(UNSPEC_TRUNC_ROUND_TO_ODD): Likewise.
(UNSPEC_ADD_ROUND_TO_ODD): New unspec codes for the IEEE 128-bit
floating point round to odd instructions.
(UNSPEC_SUB_ROUND_TO_ODD): Likewise.
(UNSPEC_MUL_ROUND_TO_ODD): Likewise.
(UNSPEC_DIV_ROUND_TO_ODD): Likewise.
(UNSPEC_FMA_ROUND_TO_ODD): Likewise.
(UNSPEC_SQRT_ROUND_TO_ODD): Likewise.
(trunc<mode>sf2_hw): Change the truncate with round to odd
expansion to use UNSPEC_TRUNC_ROUND_TO_ODD.
(add<mode>3_odd): Add insns for IEEE 128-bit floating point round
to odd hardware instructions.
(sub<mode>3_odd): Likewise.
(mul<mode>3_odd): Likewise.
(div<mode>3_odd): Likewise.
(sqrt<mode>2_odd): Likewise.
(fma<mode>4_odd): Likewise.
(fms<mode>4_odd): Likewise.
(nfma<mode>4_odd): Likewise.
(nfms<mode>4_odd): Likewise.
(trunc<mode>df2_odd): Change the truncate with round to odd
expansion to use UNSPEC_TRUNC_ROUND_TO_ODD.  Add a generator
function.
* doc/extend.texi (PowerPC built-in functions): Update documentation
for existing IEEE float128-bit built-in functions.  Add built-in
functions that generate the IEEE 128-bit floating point round to
odd instructions.

[gcc/testsuite]
2017-10-03  Michael Meissner  <meissner@linux.vnet.ibm.com>

* gcc.target/powerpc/float128-odd.c: New test.

From-SVN: r253389

re PR c++/70343 (internal compiler error: in tsubst_copy, wrong code with lambda in template fn)

2017-10-03  Paolo Carlini  <paolo.carlini@oracle.com>

PR c++/70343
* g++.dg/cpp0x/lambda/lambda-70343.C: New.

From-SVN: r253388

Import from libffi master repository.

2017-08-31  Tony Reix  <tony.reix@atos.net>

        * src/powerpc/aix.S (ffi_call_AIX): Add debugging pseudo-op and
        labels for EH.
        (ffi_call_go_AIX): New function.
        (_GLOBAL__F_libffi_src_powerpc_aix): New EH frame.
        * src/powerpc/aix_closure.S (ffi_closure_ASM): Add debugging
        pseudo-op and labels for EH.
        (ffi_go_closure_ASM): New function.
        (_GLOBAL__F_libffi_src_powerpc_aix_closure): New EH frame.
        * src/powrpc/ffi_darwin.c (ffi_call_go): New function.
        (ffi_prep_go_closure): New function.
        (ffi_closure_helper_common): Rename from ffi_closure_helper_DARWIN.
        (ffi_closure_helper_DARWIN): Call ffi_closure_helper_common.
        (ffi_go_closure_helper_DARWIN): Call ffi_closure_helper_common.
        * src/powerpc/ffitarget.h (FFI_GO_CLOSURES): Define.

From-SVN: r253386

re PR target/82358 (i386/stack-check-11.c fail)

PR target/82358
* gcc.target/i386/stack-check-11.c: Use -mtune=generic.

From-SVN: r253385

simplify-rtx: Remove non-simplifying simplification (PR77729)

If we have (X&C1)|C2 simplify_binary_operation_1 makes C1 as small as
possible.  This makes worse code in common cases like when the AND with
C1 is from a zero-extension.  This patch fixes it by removing this
transformation (twice).

PR rtl-optimization/77729
* simplify-rtx.c (simplify_binary_operation_1): Delete the (X&C1)|C2
to (X&(C1&~C2))|C2 transformations.

From-SVN: r253384

[BRIGFE] Fix (more) crash with calls with more than 4 args.

It missed a reference which is required because vector expansion
can move the object to another location.

From-SVN: r253382

io.c (match_wait_element): Correctly match END and EOR tags.

2017-10-03  Thomas Koenig  <tkoenig@gcc.gnu.org>

* io.c (match_wait_element): Correctly match END and EOR tags.
* dump-parse-tree.c (show_code_node): Handle EXEC_WAIT.

From-SVN: r253381

[PR 82363] Fix thinko in SRA subaccess propagation

2017-10-03  Martin Jambor  <mjambor@suse.cz>

PR tree-optimization/82363
* tree-sra.c (propagate_subaccesses_across_link): In unrecoverable
mismatch, mark lacc written regardless of racc.

testsuite/
* gcc.dg/tree-ssa/pr82363.c: New test.

From-SVN: r253380

re PR tree-optimization/82381 (internal compiler error: qsort checking failed)

PR tree-optimization/82381
* tree-ssa-reassoc.c (sort_by_operand_rank): Don't check
stmt_to_insert nor wheather SSA_NAMEs are default defs.
Return 1 or -1 if one of bba and bbb is NULL. If bb_rank is equal,
fallthrough into reassoc_stmt_dominates_stmt_p.

* gcc.c-torture/compile/pr82381.c: New test.

From-SVN: r253379

re PR target/82386 (internal compiler error: Segmentation fault on 32-bit powerpc BE targets)

PR target/82386
* combine.c (combine_instructions): Don't combine in unreachable
basic blocks.

* gcc.dg/pr82386.c: New test.

From-SVN: r253378

ztest.c: #include <errno.h>.

* ztest.c: #include <errno.h>.
(TEST_TIMING): Don't define, don't test.
(xclock_gettime, xclockid_t): Define if !HAVE_CLOCK_GETTIME.
(clockid_t, clock_gettime, CLOCK_REALTIME): Likewise.
(ZLIB_CLOCK_GETTIME_ARG): Define.
* configure.ac: Change clock_gettime_link to CLOCK_GETTIME_LINK.
* Makefile.am: Likewise.
* configure, Makefile.in: Rebuild.

From-SVN: r253377

Daily bump.

From-SVN: r253376

Clean up more fallout from r252976.

libatomic/ChangeLog:
2017-10-02  Martin Sebor  <msebor@redhat.com>

PR c/81854
* acinclude.m4 (LIBAT_CHECK_IFUNC): Have ifunc resolver return
a function pointer rather than void* to avoid GCC 8 warnings.
* configure: Regenerate.
* libatomic_i.h: Declare ifunc resolvers to return function
pointers rather than void*.

From-SVN: r253372

charconv (__unsigned_least_t): Fix number of closing >s for !_GLIBCXX_USE_INT128.

* include/std/charconv (__unsigned_least_t): Fix number of closing >s for
!_GLIBCXX_USE_INT128.

From-SVN: r253371

re PR c++/70570 (Assembler error "symbol already defined" from nested lambdas and function-static variable)

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

PR c++/70570
* g++.dg/cpp1y/lambda-generic-70570.C: New.

From-SVN: r253370

re PR c++/79590 (ICE (internal compiler error) in nothrow_spec_p with generic lambda and `noexcept(noexcept(...))` expression)

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

PR c++/79590
* g++.dg/cpp1y/lambda-generic-noexcept1.C: New.

From-SVN: r253369

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

re PR ada/82384 (s-taprop.adb failed to compile for x32)

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

re PR target/80210 (ICE in in extract_insn, at recog.c:2311 on ppc64 for with __builtin_pow)

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

re PR tree-optimization/82387 (wrong code at -O1 and -Os on x86_64-linux-gnu in 64-bit mode)

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

C++17 P0067R5 std::to_chars and std::from_chars (partial)

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

backtrace-rename.h (backtrace_uncompress_zdebug): Define.

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

From-SVN: r253351

re PR c++/79180 (Nested lambda-capture causes segfault for parameter pack)

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

Handle libbacktrace in contrib/gcc_update

contrib/
* gcc_update (files_and_dependencies): Handle libbacktrace.

From-SVN: r253346

libbacktrace: Support the case that clock_gettime is in librt

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: Conditionalize test timing on clock_gettime availability

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

re PR target/41076 ([avr] pessimal code for logical OR of 8-bit fields)

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

Fix mismatched precisions in tree arithmetic

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

re PR c++/69977 (internal compiler error: Segmentation fault when using generic lambdas)

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

Require nonlocal_goto for gcc.c-torture/compile/pr82337.c

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

[AArch64] PR71307: Define union class of POINTER+FP

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

re PR tree-optimization/82355 (ICE in outermost_loop_in_sese, at sese.c:301)

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.

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

From-SVN: r253335

Daily bump.

From-SVN: r253334

MAINTAINERS: Add a note that maintainership also includes web pages...

* 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

re PR fortran/61450 (ICE in gfc_global_used())

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

Daily bump.

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

re PR c++/65949 (Compiler can not deduce auto type in lambda)

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

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

From-SVN: r253322

re PR c++/68754 (Explicitly defaulted constexpr assignment operator fails to compile)

/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

re PR target/82361 (Useless "mov eax, eax" in generated code)

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

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

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

From-SVN: r253316

Daily bump.

From-SVN: r253315

Order some filenames in a changelog entry.

From-SVN: r253311

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

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

From-SVN: r253308

re PR middle-end/82319 (ICE in generic_simplify_148, at generic-match.c:6436)

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