2014-12-15  Tobias Burnus  <burnus@net-b.de>

        * lang.opt (fsecond-underscore, frecord-marker=8,
        * frecord-marker=4,
        frealloc-lhs, freal-8-real-16, freal-8-real-10, freal-8-real-4,
        freal-4-real-16, freal-4-real-10, freal-4-real-8, fprotect-parens,
        fstack-arrays, fmax-stack-var-size=, fmax-subrecord-length=,
        ffrontend-optimize, ffree-line-length-, ffixed-line-length-,
        finteger-4-integer-8, fdefault-real-8, fdefault-integer-8,
        fdefault-double-8): Add Var() and Init().
        * gfortran.h (gfc_option_t): Remove moved flags.
        * options.c (gfc_init_options, gfc_handle_option): Ditto.
        (gfc_post_options): Update for name change.
        * decl.c (gfc_match_old_kind_spec, gfc_match_kind_spec): Handle
        flag-name change.
        * frontend-passes.c (gfc_run_passes): Ditto.
        * module.c (use_iso_fortran_env_module): Ditto.
        * primary.c (match_integer_constant, match_real_constant):
        * Ditto.
        * resolve.c (resolve_ordinary_assign): Ditto.
        * scanner.c (gfc_next_char_literal, load_line): Ditto.
        * trans-array.c (gfc_trans_allocate_array_storage,
        gfc_conv_resolve_dependencies, gfc_trans_auto_array_allocation,
        gfc_conv_ss_startstride): Ditto.
        * trans-common.c (gfc_sym_mangled_common_id): Ditto.
        * trans-decl.c (gfc_sym_mangled_function_id,
        create_main_function): Ditto.
        * trans-expr.c (gfc_conv_expr_op, gfc_conv_procedure_call,
        arrayfunc_assign_needs_temporary, gfc_trans_arrayfunc_assign,
        gfc_trans_assignment_1): Ditto.
        * trans-stmt.c (gfc_trans_allocate): Ditto.
        * trans-types.c (gfc_init_kinds): Ditto.

From-SVN: r218790

re PR go/61264 (gccgo: ICE in __normal_iterator [GoSmith])

PR go/61264
compiler: Fix copying behavior for empty composite literals.

From-SVN: r218789

re PR go/61273 (gccgo: ICE in Unsafe_type_conversion_expression::do_get_backend [GoSmith])

PR go/61273
compiler: Send statements should contextually permit composite literals.

From-SVN: r218788

re PR middle-end/64309 (if (1 & (1 << n)) not simplified to if (n == 0))

PR middle-end/64309
* match.pd: Add ((1 << A) & 1) != 0 -> A == 0 and
((1 << A) & 1) == 0 -> A != 0.

* gcc.dg/pr64309.c: New test.

From-SVN: r218787

genmatch.c (parser::parser): Initialize capture_ids.

2014-12-16  Richard Biener  <rguenther@suse.de>

* genmatch.c (parser::parser): Initialize capture_ids.
(parser::parse_pattern): Properly allocate capture_ids before
using them.  Set capture_ids to zero when its lifetime is
supposed to finish.
(parser::parse_simplify): Allocate capture_ids only if
required.

From-SVN: r218786

gnu.ver (CXXABI_1.3.9): Export not just _Zd[la]Pvm...

* config/abi/pre/gnu.ver (CXXABI_1.3.9): Export not just
_Zd[la]Pvm, but also _Zd[la]Pv[jy] to cover other std::size_t
manglings.

From-SVN: r218785

gnu-versioned-namespace.ver: And other size_t manglings.

* config/abi/pre/gnu-versioned-namespace.ver: And other size_t
manglings.

From-SVN: r218784

Both config.h and system.h define ABI/API macros for system headers.

* sreal.c: Include math.h later.

From-SVN: r218783

MAINTAINERS (Write After Approval): Add myself.

* MAINTAINERS (Write After Approval): Add myself.

From-SVN: r218782

gnu-versioned-namespace.ver: Export _ZdlPvm and _ZdaPvm.

* config/abi/pre/gnu-versioned-namespace.ver: Export _ZdlPvm and
_ZdaPvm.

From-SVN: r218781

re PR target/64240 ([AArch64] SMS-3.c causes runtime exception(segfault).)

+       PR rtl-optimization/64240
+       * ddg.c (mark_mem_use): Check *iter instead of *x.

From-SVN: r218780

re PR other/64278 (/sreal.c:254:22: error: call of overloaded 'abs(const int64_t&)' is ambiguous)

Fix for PR ipa/64278

* sreal.c (sreal::operator*): Replace std::abs with absu_hwi.

From-SVN: r218779

sanitizer_symbolizer_libbacktrace.cc, [...]: Cherry pick upstream r224308.

* sanitizer_common/sanitizer_symbolizer_libbacktrace.cc,
sanitizer_common/sanitizer_symbolizer_libbacktrace.h,
sanitizer_common/sanitizer_symbolizer_posix_libcdep.cc: Cherry pick
upstream r224308.

From-SVN: r218778

i386.c (ix86_address_cost): Add explicit restriction to RTL level for the check for PIC register.

gcc/
* config/i386/i386.c (ix86_address_cost): Add explicit restriction
to RTL level for the check for PIC register.

From-SVN: r218777

re PR fortran/64244 (ICE at class.c:236 when using non_overridable)

2014-12-16  Janus Weil  <janus@gcc.gnu.org>

PR fortran/64244
* resolve.c (resolve_typebound_call): New argument to pass out the
non-overridable attribute of the specific procedure.
(resolve_typebound_subroutine): Get overridable flag from
resolve_typebound_call.

2014-12-16  Janus Weil  <janus@gcc.gnu.org>

PR fortran/64244
* gfortran.dg/typebound_call_26.f90: New.

From-SVN: r218776

gnu-user.h (TARGET_CAN_SPLIT_STACK): Move from here ...

* config/i386/gnu-user.h (TARGET_CAN_SPLIT_STACK): Move from here ...
* config/i386/gnu-user64.h (TARGET_CAN_SPLIT_STACK): ... and here ...
* config/i386/gnu-user-common.h (TARGET_CAN_SPLIT_STACK): ... to here.

From-SVN: r218775

re PR target/64217 (LRA: generate wrong liveness info after r217947 for clobber in jump_insn)

PR target/64217
* config/nds32/nds32.md (casesi_internal): Add '=r' for clobber
register constraint.

From-SVN: r218774

Daily bump.

From-SVN: r218772

decl2.c (decl_needed_p): When not optimizing, do not consider external decls as needed.

* decl2.c (decl_needed_p): When not optimizing, do not consider external
decls as needed.

From-SVN: r218769

* config/rl78/rl78.h: Remove SHORT_IMMEDIATES_SIGN_EXTEND.

From-SVN: r218768

re PR lto/64043 (ICE (segfault) with LTO: in tree_check/tree.h:2758 get_binfo_at_offset/tree.c:11914)

PR lto/64043
* gcc.dg/lto/20110201-1_0.c: New testcase.

* tree-streamer.c (preload_common_nodes): Skip preloading
of main_identifier_node, pid_type and optimization/option nodes.

From-SVN: r218767

re PR rtl-optimization/63397 (signed integer overflows in ira.c)

2014-12-15  Vladimir Makarov  <vmakarov@redhat.com>

PR rtl-optimization/63397
* ira-int.h (ira_overall_cost, ira_reg_cost, ira_mem_cost): Use
int64_t.
(ira_load_cost, ira_store_cost, ira_shuffle_cost): Ditto.
* ira.c (ira_overall_cost, ira_overall_cost_before): Ditto.
(ira_reg_cost, ira_mem_cost): Ditto.
(ira_load_cost, ira_store_cost, ira_shuffle_cost): Ditto.
(calculate_allocation_cost, do_reload): Use the right
format for int64_t values.

From-SVN: r218766

sreal.h (to_double): New method.

* sreal.h (to_double): New method.
(shift): Do not ICE on 0.
* sreal.c: Include math.h
(sreal::to_double): New.

From-SVN: r218765

re PR go/61255 (gccgo: spurious "error: argument 2 has incompatible type" [GoSmith])

PR go/61255
compiler: Copied variadic calls should copy lowering state of arguments.

From-SVN: r218764

re PR c++/64297 (ICE: canonical types differ for identical types)

PR c++/64297
* typeck.c (apply_memfn_quals): Correct wrong TYPE_CANONICAL.

From-SVN: r218763

re PR rtl-optimization/64316 (ICE in simplify_const_unary_operation after r218503)

PR rtl-optimization/64316
* simplify-rtx.c (simplify_relational_operation_1): For
(eq/ne (and x y) x) and (eq/ne (and x y) y) optimizations use
CONST0_RTX instead of const0_rtx.

* gcc.dg/pr64316.c: New test.

From-SVN: r218762

re PR target/62642 (x86 rdtsc is moved through barrier)

2014-12-15  Vladimir Makarov  <vmakarov@redhat.com>

PR target/62642
* ira.c (rtx_moveable_p): Prevent UNSPEC_VOLATILE moves.

From-SVN: r218761

ira-int.h (ira_prohibited_class_mode_regs): Remove.

2014-12-15  Vladimir Makarov  <vmakarov@redhat.com>

* ira-int.h (ira_prohibited_class_mode_regs): Remove.
(struct target_ira_int): Move x_ira_prohibited_class_mode_regs to
...
* ira.h (struct target_ira_int): ... here.
(ira_prohibited_class_mode_regs): Define.
* lra-constraints.c (process_alt_operands): Add one more condition
to refuse alternative when reload pseudo of given class can not
hold value of given mode.

From-SVN: r218760

re PR libgcc/63832 (crtstuff.c:400:19: warning: array subscript is above array bounds [-Warray-bounds])

PR libgcc/63832
* crtstuff.c (__do_global_dtors_aux) [HIDDEN_DTOR_LIST_END]: Use
func_ptr *dtor_list temporary variable to avoid "array subscript
is above array bounds" warnings.

From-SVN: r218759

re PR rtl-optimization/63804 (ice in find_oldest_value_reg with -g -O2)

PR rtl-optimization/63804
* gcc.dg/pr63804.c: New test.

From-SVN: r218758

re PR fortran/61669 (Error recovery ICE)

PR fortran/61669
* gfortran.h (struct gfc_namespace): Add OLD_DATA field.
* decl.c (gfc_reject_data): New function.
* parse.c *use_modules): Record roll-back point.
(next_statement): Likewise.
(reject_statement): Roll back to last accepted DATA.

* gfortran.dg/pr61669.f90: New test.

Co-Authored-By: Jakub Jelinek <jakub@redhat.com>
From-SVN: r218757

re PR tree-optimization/64312 (ICE: Segmentation fault)

2014-12-15  Richard Biener  <rguenther@suse.de>

PR tree-optimization/64312
* tree-ssa-sccvn.c (vn_reference_lookup_pieces): Use
vuse_ssa_val as callback to walk_non_aliased_vuses.
(vn_reference_lookup): Likewise.

* g++.dg/torture/pr64312.C: New testcase.

From-SVN: r218756

N3778: Sized Deallocation

N3778: Sized Deallocation
gcc/c-family/
* c.opt (-fsized-deallocation, -Wc++14-compat): New.
(-Wsized-deallocation): New.
* c-opts.c (c_common_post_options): -fsized-deallocation defaults
to on in C++14 and up.
gcc/cp/
* call.c (non_placement_deallocation_fn_p): A global sized
operator delete is not a usual deallocation function until C++14.
(build_op_delete_call): Choose the global sized op delete if we
know the size.
* cp-tree.h: Declare non_placement_deallocation_fn_p.
(enum cp_tree_index): Remove CPTI_GLOBAL_DELETE_FNDECL.
(global_delete_fndecl): Remove.
* decl.c (cxx_init_decl_processing): Also declare sized op deletes.
(grok_op_properties): Warn about sized dealloc without the flag.
* init.c (build_builtin_delete_call): Remove.
(build_vec_delete_1, build_delete): Don't call it.
* decl2.c (maybe_warn_sized_delete): New.
(cp_write_global_declarations): Call it.
libstdc++-v3/
* libsupc++/del_ops.cc: New.
* libsupc++/del_opvs.cc: New.
* libsupc++/Makefile.am: Add them.
* libsupc++/Makefile.in: Regenerate.
* config/abi/pre/gnu.ver: Export _ZdlPvm and _ZdaPvm.

From-SVN: r218755

re PR go/61248 (gccgo: spurious "error: too many arguments" [GoSmith])

PR go/61248
compiler: Ignore argument when typechecking converted recover calls.

From-SVN: r218754

re PR go/61253 (gccgo: spurious "error: expected '<-' or '='" [GoSmith])

PR go/61253
compiler: Support RecvStmt = ExpressionList "=" RecvExpr.

From-SVN: r218753

re PR c++/58882 (ICE with invalid C99 style designated initializers)

/cp
2014-12-15  Paolo Carlini  <paolo.carlini@oracle.com>

PR c++/58882
* decl.c (check_array_designated_initializer): Diagnose gracefully
C99 designators which aren't integral constant-expressions; allow
constexpr user-defined type conversion operators.

/testsuite
2014-12-15  Paolo Carlini  <paolo.carlini@oracle.com>

PR c++/58882
* g++.dg/ext/desig8.C: New.
* g++.dg/cpp0x/desig1.C: Likewise.

From-SVN: r218752

re PR fortran/63727 ([F03] Checks missing for proc-pointer components: Usage as actual argument when elemental)

2014-12-15  Janus Weil  <janus@gcc.gnu.org>

PR fortran/63727
* resolve.c (resolve_actual_arglist): Check for elemental procedure
pointer components.

2014-12-15  Janus Weil  <janus@gcc.gnu.org>

PR fortran/63727
* gfortran.dg/coarray_collectives_14.f90: Address FIXME item.

From-SVN: r218751

* gcc/config/rs6000/rs6000.md (*add>mode>3_imm_dot,

*add<mode>3_imm_dot2): Change the constraint for the second
alternative for operand 1 from "r" to "b".

From-SVN: r218750

vec.h (vec::safe_grow): Guard against a grow to zero size.

2014-12-15  Richard Biener  <rguenther@suse.de>

* vec.h (vec::safe_grow): Guard against a grow to zero size.

From-SVN: r218749

re PR tree-optimization/64295 (ICE: SIGSEGV (infinite recursion) with -frounding-math -funsafe-math-optimizations)

2014-12-15  Richard Biener  <rguenther@suse.de>

PR middle-end/64295
* match.pd (X / CST -> X * (1 / CST): Use const_binop instead of
fold_binary to compute the constant to multiply with.

* gcc.dg/pr64295.c: New testcase.

From-SVN: r218748

re PR middle-end/64246 (ICE building libada for Windows due to NULL loop header)

2014-12-15  Richard Biener  <rguenther@suse.de>

PR middle-end/64246
* cfgloop.c (mark_loop_for_removal): Make safe against multiple
invocations on the same loop.

* gnat.dg/opt46.adb: New testcase.
* gnat.dg/opt46.ads: Likewise.
* gnat.dg/opt46_pkg.adb: Likewise.
* gnat.dg/opt46_pkg.ads: Likewise.

From-SVN: r218746

re PR middle-end/64292 (FAIL: g++.dg/torture/pr60474.C   -O1  (internal compiler error))

PR middle-end/64292
* fold-const.c (negate_expr_p): Add INTEGRAL_TYPE_P check.

From-SVN: r218745

Build machinery cleanup.

* configure.ac (--enable-as-accelerator-for): Don't set
ENABLE_AS_ACCELERATOR_FOR.  Update all users.
* configure: Regenerate.

From-SVN: r218744

re PR target/64210 (FAIL: gcc.target/i386/avx512vl-(vmovdqa64|vpbroadcastd)-1.c  ... with -fpic)

PR target/64210
* gcc.target/i386/avx512f-broadcast-gpr-1.c: Use %(?:e|r\[0-9\]+d)
instead of %e in regexps trying to match 32-bit GPR.
* gcc.target/i386/avx512f-vpbroadcastd-1.c: Likewise.
* gcc.target/i386/avx512vl-vpbroadcastd-1.c: Likewise.
* gcc.target/i386/avx512vl-vmovdqa64-1.c: Restrict some scan-assembler-times
lines to nonpic targets only.  Fix up \[^\n^x^y\] to \[^\nxy\].

From-SVN: r218743

pr63996.C: Fix.

2014-12-15  Paolo Carlini  <paolo.carlini@oracle.com>

* g++.dg/cpp1y/pr63996.C: Fix.

From-SVN: r218742

re PR tree-optimization/63551 (wrong code (segfaults) at -Os on x86_64-linux-gnu)

PR tree-optimization/63551
* gcc.dg/ipa/pr63551.c (fn2): Use 4294967286U instead of
4294967286 to avoid warnings.

From-SVN: r218740

re PR fortran/63674 ([F03] procedure pointer and non/pure procedure)

2014-12-15  Janus Weil  <janus@gcc.gnu.org>

PR fortran/63674
* resolve.c (check_pure_function): Rewording in error message.

2014-12-15  Janus Weil  <janus@gcc.gnu.org>

PR fortran/63674
* gfortran.dg/forall_5.f90: Modified error message.
* gfortran.dg/proc_ptr_comp_39.f90: Ditto.
* gfortran.dg/pure_dummy_length_1.f90: Ditto.
* gfortran.dg/stfunc_6.f90: Ditto.
* gfortran.dg/typebound_operator_4.f90: Ditto.

From-SVN: r218738

[AARCH64]Fix CLZ_DEFINED_AT_ZERO and CTZ_DEFINED_AT_ZERO definition.

gcc/

2014-12-15  Renlin Li  <renlin.li@arm.com>

* config/aarch64/aarch64.h (CLZ_DEFINED_VALUE_AT_ZERO): Return 2.
(CTZ_DEFINED_VALUE_AT_ZERO): Update to support more modes.

From-SVN: r218737

re PR sanitizer/64265 (r217669 broke tsan)

PR sanitizer/64265
* tsan.c (instrument_func_entry): Insert __tsan_func_entry
call on edge from entry block to single succ instead
of after labels of single succ of entry block.

From-SVN: r218734

re PR tree-optimization/64284 (ICE: Segmentation fault)

2014-12-15  Richard Biener  <rguenther@suse.de>

PR tree-optimization/64284
* tree-ssa-threadupdate.c (duplicate_seme_region): Mark
the loop for removal if we copied the loop header.

* gcc.dg/torture/pr64284.c: New testcase.

From-SVN: r218733

server.c (server_setup): Check return value of getcwd and in case of error set buff[0] to 0.

* server.c (server_setup): Check return value of
getcwd and in case of error set buff[0] to 0.

From-SVN: r218732

re PR ipa/61602 (ICE in lto1 on x86_64-linux-gnu in ipa_single_use, at ipa.c:1257)

PR ipa/61602
* gcc.dg/torture/pr61602.c: New testcase.

* cgraph.h (ipa_discover_readonly_nonaddressable_vars): Return bool.
* ipa.c (set_writeonly_bit): Track if reference was removed.
(ipa_discover_readonly_nonaddressable_vars): Return true if any
references was removed.
* ipa-reference.c (propagate): Return TODO_remove_functions if
reference was removed.

From-SVN: r218731

* ipa.c (process_references): Fix conditoinal on flag_optimize

From-SVN: r218730

re PR middle-end/61558 (ICE: Segmentation fault)

PR ipa/61558
* symtab.c (symbol_table::insert_to_assembler_name_hash
symbol_table::unlink_from_assembler_name_hash): Do not ICE when
DECL_ASSEMBLER_NAME is NULL.

From-SVN: r218729

* cgraphunit.c (analyze_functions): Always analyze targets of aliases.

From-SVN: r218728

re PR lto/64043 (ICE (segfault) with LTO: in tree_check/tree.h:2758 get_binfo_at_offset/tree.c:11914)

PR lto/64043
* tree.c (virtual_method_call_p): Return false when OTR type has
no BINFO.
* g++.dg/lto/pr64043_0.C: New testcase.

From-SVN: r218727

cgraphunit.c (analyze_functions): Do not analyze extern inline funtions when not optimizing; skip comdat locals.

* cgraphunit.c (analyze_functions): Do not analyze extern inline
funtions when not optimizing; skip comdat locals.

From-SVN: r218726

Daily bump.

From-SVN: r218725

compiler: Fix crash when tracked field used in global initializer.

From-SVN: r218722

Pass unpromoted argument to promote_function_mode

This patch updates setup_incoming_promotions in combine.c to match what
is actually passed in assign_parm_setup_reg in function.c.

gcc/

PR rtl-optimization/64037
* combine.c (setup_incoming_promotions): Pass the argument
before any promotions happen to promote_function_mode.

gcc/testsuite/

PR rtl-optimization/64037
* g++.dg/pr64037.C: New test.

From-SVN: r218720

re PR fortran/63674 ([F03] procedure pointer and non/pure procedure)

2014-12-14  Janus Weil  <janus@gcc.gnu.org>

PR fortran/63674
* resolve.c (pure_function): Treat procedure-pointer components.
(check_pure_function): New function.
(resolve_function): Use it.
(pure_subroutine): Return a bool to indicate success and modify
arguments.
(resolve_generic_s0,resolve_specific_s0,resolve_unknown_s): Use return
value of 'pure_subroutine'.
(resolve_ppc_call): Call 'pure_subroutine'.
(resolve_expr_ppc): Call 'check_pure_function'.

2014-12-14  Janus Weil  <janus@gcc.gnu.org>

PR fortran/63674
* gfortran.dg/proc_ptr_comp_39.f90: New.
* gfortran.dg/pure_dummy_length_1.f90: Modified error message.
* gfortran.dg/stfunc_6.f90: Ditto.
* gfortran.dg/typebound_operator_4.f90: Ditto.

From-SVN: r218717

re PR go/61244 (gccgo: ICE in write_specific_type_functions [GoSmith])

PR go/61244
compiler: Traverse type descriptor expressions.

From-SVN: r218715

Daily bump.

From-SVN: r218714

re PR libstdc++/64239 (regex_iterator::operator= should copy match_results::position)

PR libstdc++/64239
* include/bits/regex.h (match_results<>::match_results,
match_results<>::operator=, match_results<>::position,
match_results<>::swap): Remove match_results::_M_in_iterator.
Fix ctor/assign/swap.
* include/bits/regex.tcc: (__regex_algo_impl<>,
regex_iterator<>::operator++): Set match_results::_M_begin as
"start position".
* testsuite/28_regex/iterators/regex_iterator/char/
string_position_01.cc: Test cases.

From-SVN: r218710

Post-Urbana updates to Library Fundamentals v1.

* include/experimental/any (any): Remove allocator support and update
feature-testing macro.
* include/experimental/functional: Update feature-testing macro.
* include/experimental/optional (optional::_M_get()): Add constexpr.
(optional::operator*(), optional::value()): Overload and add
ref-qualifiers. Update feature-testing macro.
* include/experimental/string_view (basic_string_view::clear): Remove
and update feature-testing macro.
* testsuite/experimental/any/cons/3.cc: Remove.
* testsuite/experimental/any/cons/4.cc: Remove.
* testsuite/experimental/any/misc/any_cast.cc: Remove allocator tests.
* testsuite/experimental/any/misc/any_cast_neg.cc: Adjust dg-error.
* testsuite/experimental/string_view/capacity/1.cc: Don't test clear().

From-SVN: r218709

re PR target/53513 ([SH] Add support for fpchg insn and improve fenv support)

gcc/testsuite/
PR target/53513
* gcc.target/sh/attr-isr-nosave_low_regs.c: Fix matching of expected
register push/pop sequences.
* gcc.target/sh/attr-isr.c: Likewise.
* gcc.target/sh/attr-isr-trapa.c: Likewise.
* gcc.target/sh/pragma-isr-nosave_low_regs.c: Likewise.
* gcc.target/sh/pragma-isr-trapa.c: Likewise.
* gcc.target/sh/pragma-isr-trapa2.c: Likewise.

From-SVN: r218707

sp-switch.c: Match zero or more underscores in alt_stack symbol.

gcc/testsuite/
* gcc.target/sh/sp-switch.c: Match zero or more underscores in
alt_stack symbol.

From-SVN: r218706

re PR bootstrap/64023 (r216964 breaks bootstrap on darwin when using gcc as the bootstrap compiler.)

PR bootstrap/64023
* Makefile.tpl (EXTRA_TARGET_FLAGS): Set STAGE1_LDFLAGS
to POSTSTAGE1_LDFLAGS and STAGE1_LIBS to POSTSTAGE1_LIBS.
Add -B to libstdc++-v3/src/.libs and libstdc++-v3/libsupc++/.libs
to CXX.
* Makefile.in: Regenerated.

From-SVN: r218705

re PR go/61258 (gccgo: assertion failure go-map-delete.c:37 [GoSmith])

PR go/61258
runtime: Don't crash when deleting zero-sized key.

From-SVN: r218702

re PR go/61254 (gccgo: spurious "error: slice end must be integer" [GoSmith])

PR go/61254
compiler: Don't move nil subexpressions into temporaries.

From-SVN: r218701

testing: Add testing.MainStart function.

This patches in the Go 1.4 function, for convenience for
people using the Go 1.4 go tool with mainline gccgo.

From-SVN: r218700

runtime: Clear stack pointers for extra G's.

Fix an unusual C to Go callback case.  Newly created C threads
call into Go code, forcing the Go code to allocate new M and G
structures.  While executing Go code, the stack is split.  The
Go code then returns.  Returning from a Go callback is treated
as entering a system call, so the G gcstack field is set to
point to the Go stack.  In this case, though, we were called
from a newly created C thread, so we drop the extra M and G
structures.  The C thread then exits.

Then a new C thread calls into Go code, reusing the previously
created M and G.  The Go code requires a larger stack frame,
causing the old stack segment to be unmapped and a new stack
segment allocated.  At this point the gcstack field is
pointing to the old stack segment.

Then a garbage collection occurs.  The garbage collector sees
that the gcstack field is not nil, so it scans it as the first
stack segment.  Unfortunately it points to memory that was
unmapped.  So the program crashes.

The fix is simple: when handling extra G structures created
for callbacks from new C threads, clear the gcstack field.

From-SVN: r218699

re PR libstdc++/58594 (std::make_shared does not accept const types as parameters)

PR libstdc++/58594
* include/bits/shared_ptr_base.h: Real fix for cv-qualified types.

From-SVN: r218698

Daily bump.

From-SVN: r218697

error.c (gfc_error): Add variant which takes a va_list.

2014-12-13  Tobias Burnus  <burnus@net-b.de>
            Manuel López-Ibáñez  <manu@gcc.gnu.org>

fortran/
        * error.c (gfc_error): Add variant which takes a va_list.
        (gfc_notify_std): Convert to common diagnostic.
        * array.c: Use %qs, %<...%> in more gfc_error calls and
        for gfc_notify_std.
        * check.c: Ditto.
        * data.c: Ditto.
        * decl.c: Ditto.
        * expr.c: Ditto.
        * interface.c: Ditto.
        * intrinsic.c: Ditto.
        * io.c: Ditto.
        * match.c: Ditto.
        * matchexp.c: Ditto.
        * module.c: Ditto.
        * openmp.c: Ditto.
        * parse.c: Ditto.
        * primary.c: Ditto.
        * resolve.c: Ditto.
        * simplify.c: Ditto.
        * symbol.c: Ditto.
        * trans-common.c: Ditto.
        * trans-intrinsic.c: Ditto.

gcc/testsuite/
        * gfortran.dg/realloc_on_assign_21.f90: Update dg-error.
        * gfortran.dg/warnings_are_errors_1.f: Ditto.
        * gfortran.dg/warnings_are_errors_1.f90: Ditto.

Co-Authored-By: Manuel López-Ibáñez <manu@gcc.gnu.org>
From-SVN: r218694

re PR c++/59240 (ICE in varpool_get_node)

2014-12-12  Paolo Carlini  <paolo.carlini@oracle.com>

PR c++/59240
* g++.dg/torture/pr59240.C: New.

From-SVN: r218693

re PR c++/59628 (ICE with invalid OpenMP "declare reduction" clause)

/cp
2014-12-12  Paolo Carlini  <paolo.carlini@oracle.com>

PR c++/59628
* semantics.c (finish_omp_reduction_clause): Early return true
if DECL_SAVED_TREE (id) is NULL_TREE.

/testsuite
2014-12-12  Paolo Carlini  <paolo.carlini@oracle.com>

PR c++/59628
* g++.dg/gomp/pr59628.C: New.

From-SVN: r218692

re PR libstdc++/58594 (std::make_shared does not accept const types as parameters)

PR libstdc++/58594
* include/bits/shared_ptr_base.h: Cast away cv-quals.
* testsuite/20_util/shared_ptr/creation/58594-no-rtti.cc: New.
* testsuite/20_util/shared_ptr/creation/private.cc: Make allocator
rebindable so test passes with -fno-rtti.

From-SVN: r218691

re PR c++/61924 ([C++11] ICE in instantiate_template_1, at cp/pt.c:15618)

2014-12-12  Paolo Carlini  <paolo.carlini@oracle.com>

PR c++/61924
* g++.dg/cpp0x/pr61924.C: New.

From-SVN: r218690

nvptx: Define valid ASM_OUTPUT_ALIGN.

gcc/
* config/nvptx/nvptx.h (ASM_OUTPUT_ALIGN): Define as a C statment.

    gcc/doc/tm.texi:@defmac ASM_OUTPUT_ALIGN (@var{stream}, @var{power})
    gcc/doc/tm.texi-A C statement to output to the stdio stream @var{stream} an assembler
    gcc/doc/tm.texi-command to advance the location counter to a multiple of 2 to the
    gcc/doc/tm.texi-@var{power} bytes.  @var{power} will be a C expression of type @code{int}.
    gcc/doc/tm.texi-@end defmac

    gcc/config/nvptx/nvptx.h:#define ASM_OUTPUT_ALIGN(FILE, POWER)

"Empty" is not a C statement, and so in code such as:

    gcc/dwarf2out.c-              if (lsda_encoding == DW_EH_PE_aligned)
    gcc/dwarf2out.c:                ASM_OUTPUT_ALIGN (asm_out_file, floor_log2 (PTR_SIZE));
    gcc/dwarf2out.c-              dw2_asm_output_data (size_of_encoded_value (lsda_encoding), 0,
    gcc/dwarf2out.c-                                   "Language Specific Data Area (none)");

    gcc/varasm.c-      if (align > BITS_PER_UNIT)
    gcc/varasm.c:        ASM_OUTPUT_ALIGN (asm_out_file, floor_log2 (align / BITS_PER_UNIT));
    gcc/varasm.c-      assemble_variable_contents (decl, name, dont_output_data);

    gcc/varasm.c-  if (align > 0)
    gcc/varasm.c:    ASM_OUTPUT_ALIGN (asm_out_file, align);
    gcc/varasm.c-
    gcc/varasm.c-  targetm.asm_out.internal_label (asm_out_file, "LTRAMP", 0);

    gcc/varasm.c-      if (align > BITS_PER_UNIT)
    gcc/varasm.c:        ASM_OUTPUT_ALIGN (asm_out_file, floor_log2 (align / BITS_PER_UNIT));
    gcc/varasm.c-      assemble_constant_contents (exp, XSTR (symbol, 0), align);

..., GCC warns:

    [...]/source-gcc/gcc/dwarf2out.c: In function 'void output_fde(dw_fde_ref, bool, bool, char*, int, char*, bool, int)':
    [...]/source-gcc/gcc/dwarf2out.c:665:3: warning: suggest braces around empty body in an 'if' statement [-Wempty-body]
       ASM_OUTPUT_ALIGN (asm_out_file, floor_log2 (PTR_SIZE));
       ^

    [...]/source-gcc/gcc/varasm.c: In function 'void assemble_variable(tree, int, int, int)':
    [...]/source-gcc/gcc/varasm.c:2217:2: warning: suggest braces around empty body in an 'if' statement [-Wempty-body]
      ASM_OUTPUT_ALIGN (asm_out_file, floor_log2 (align / BITS_PER_UNIT));
      ^
    [...]/source-gcc/gcc/varasm.c: In function 'rtx_def* assemble_trampoline_template()':
    [...]/source-gcc/gcc/varasm.c:2603:5: warning: suggest braces around empty body in an 'if' statement [-Wempty-body]
         ASM_OUTPUT_ALIGN (asm_out_file, align);
         ^
    [...]/source-gcc/gcc/varasm.c: In function 'void output_constant_def_contents(rtx)':
    [...]/source-gcc/gcc/varasm.c:3413:2: warning: suggest braces around empty body in an 'if' statement [-Wempty-body]
      ASM_OUTPUT_ALIGN (asm_out_file, floor_log2 (align / BITS_PER_UNIT));
      ^

Also, "use" the values, to get rid of that one:

    [...]/source-gcc/gcc/final.c: In function 'rtx_insn* final_scan_insn(rtx_insn*, FILE*, int, int, int*)':
    [...]/source-gcc/gcc/final.c:2450:12: warning: variable 'log_align' set but not used [-Wunused-but-set-variable]
            int log_align;
                ^

From-SVN: r218689

re PR rtl-optimization/64110 (ICE: Max. number of generated reload insns per insn is achieved (90))

2014-12-12  Vladimir Makarov  <vmakarov@redhat.com>

PR target/64110
* lra-constraints.c (process_alt_operands): Refuse alternative
when reload pseudo of given class can not hold value of given
mode.

2014-12-12  Vladimir Makarov  <vmakarov@redhat.com>

PR target/64110
* gcc.target/i386/pr64110.c: New.

From-SVN: r218688

OpenMP target nesting tests.

gcc/testsuite/
* c-c++-common/gomp/nesting-1.c: New file.
* c-c++-common/gomp/nesting-warn-1.c: Likewise.

From-SVN: r218687

A bit of walk_gimple_op maintenance.

* gimple-walk.c (walk_gimple_op) <GIMPLE_OMP_FOR>: Also check
intermediate walk_tree results for for_incr.
<GIMPLE_OMP_TARGET>: Walk child_fn and data_arg, too.
<GIMPLE_OMP_CRITICAL, GIMPLE_OMP_ATOMIC_STORE>: Pretty printing.

From-SVN: r218686

pt.c (do_auto_deduction): In direct-init context, { x } deduces from x.

N3922
* pt.c (do_auto_deduction): In direct-init context, { x } deduces
from x.

From-SVN: r218685

cp-tree.h (NAMESPACE_ABI_TAG): New.

* cp-tree.h (NAMESPACE_ABI_TAG): New.
* name-lookup.c (handle_namespace_attrs): Set it.
* class.c (check_tag): Split out from find_abi_tags_r.
(find_abi_tags_r): Also check namespace tags.
(mark_type_abi_tags): Also mark namespace tags.

From-SVN: r218684

re PR c++/63996 (Infinite loop in invalid C++14 constexpr fn)

PR c++/63996
* g++.dg/cpp1y/pr63996.C: New file.

From-SVN: r218683

re PR c++/63996 (Infinite loop in invalid C++14 constexpr fn)

PR c++/63996
* constexpr.c (cxx_eval_loop_expr): Don't loop
endless on none-constant expression.

From-SVN: r218682

* g++.dg/ubsan/cxx1y-vla.C: Remove.

From-SVN: r218681

re PR c++/61402 (-Wsequence-point doesn't notice unsequenced lambda init and function argument)

PR c++/61402
* lambda.c (add_capture): Don't pass a dependent type to
variably_modified_type_p.

From-SVN: r218680

re PR libstdc++/64276 (would be better to use __cpp_exceptions rather than __EXCEPTIONS to determine whether exceptions are available)

PR libstdc++/64276
* doc/doxygen/user.cfg.in: Define __cpp_exceptions and __cpp_rtti.
* doc/html/manual/using_exceptions.html: Regenerate.
* doc/xml/manual/using_exceptions.xml: Use SD-6 feature-testing
macros, __cpp_exceptions and __cpp_rtti, instead of __EXCEPTIONS and
__GXX_RTTI.
* include/bits/c++config: Likewise.
* include/bits/locale_classes.tcc: Likewise.
* include/bits/shared_ptr.h: Likewise.
* include/bits/shared_ptr_base.h: Likewise.
* include/debug/formatter.h: Likewise.
* include/experimental/any: Likewise.
* include/ext/rope: Likewise.
* include/ext/ropeimpl.h: Likewise.
* include/std/functional: Likewise.
* include/tr1/functional: Likewise.
* include/tr1/shared_ptr.h: Likewise.
* libsupc++/eh_call.cc: Likewise.
* libsupc++/eh_personality.cc: Likewise.
* libsupc++/exception_defines.h: Likewise.
* libsupc++/exception_ptr.h: Likewise.
* libsupc++/guard.cc: Likewise.
* libsupc++/pbase_type_info.cc: Likewise.
* libsupc++/pointer_type_info.cc: Likewise.
* libsupc++/vterminate.cc: Likewise.
* src/c++11/thread.cc: Likewise.

From-SVN: r218679

re PR middle-end/64182 (wide-int rounding division is broken)

gcc/
PR middle-end/64182
* wide-int.h (wi::div_round, wi::mod_round): Fix rounding of tied
cases.
* double-int.c (div_and_round_double): Fix handling of unsigned
cases.  Use same rounding approach as wide-int.h.

gcc/testsuite/
2014-xx-xx  Richard Sandiford  <richard.sandiford@arm.com>
    Joseph Myers  <joseph@codesourcery.com>

PR middle-end/64182
* gcc.dg/plugin/wide-int-test-1.c,
gcc.dg/plugin/wide-int_plugin.c: New test.
* gcc.dg/plugin/plugin.exp: Register it.
* gnat.dg/round_div.adb: New test.

Co-Authored-By: Joseph Myers <joseph@codesourcery.com>
From-SVN: r218678

re PR libstdc++/64241 (make_exception_ptr returns garbage with -fno-exceptions)

PR libstdc++/64241
* libsupc++/exception_ptr.h: Return empty object when exceptions are
disabled.
* testsuite/18_support/exception_ptr/64241.cc: New.

From-SVN: r218675

re PR middle-end/64274 ([ARM] gcc.target/arm/fixed-point-exec.c ICE in fold_binary_loc)

PR middle-end/64274
* fold-const.c (fold_binary_loc): Add ANY_INTEGRAL_TYPE_P check.

From-SVN: r218671

stl_iterator.h (make_reverse_iterator): LWG DR 2285.

* include/bits/stl_iterator.h (make_reverse_iterator): LWG DR 2285.
* include/std/tuple: Add feature-test macro.
* testsuite/24_iterators/reverse_iterator/make.cc: New.

From-SVN: r218670

re PR tree-optimization/64269 (ICE with -O3 enabled on Ubuntu 14.04)

PR tree-optimization/64269
* tree-ssa-forwprop.c (simplify_builtin_call): Bail out if
len2 or diff are too large.

* gcc.c-torture/compile/pr64269.c: New test.

From-SVN: r218669

re PR tree-optimization/64280 (ICE in replace_uses_by, at tree-cfg.c:1789)

2014-12-12  Richard Biener  <rguenther@suse.de>

PR middle-end/64280
* tree-cfg.c (replace_uses_by): Guard assert properly.

* g++.dg/torture/pr64280.C: New testcase.

From-SVN: r218668

Add use of zex instruction for moxie port

From-SVN: r218666

re PR rtl-optimization/64255 (failures with -O2 optimization on i >= 0 ? (unsigned long) i : - (unsigned long) i)

PR rtl-optimization/64255
* gcc.c-torture/execute/pr64255.c: New test.

PR rtl-optimization/64260
* gcc.c-torture/execute/pr64260.c: New test.

From-SVN: r218665

Add load of target-utils.exp to libatomic, libitm, libvtv, libgo testsuite drivers

* testsuite/lib/libatomic.exp: Load target-utils.exp

* testsuite/lib/libitm.exp: Load target-utils.exp.
Move load of target-supports.exp earlier.

* testsuite/lib/libvtv.exp: Load target-utils.exp

From-SVN: r218664

real.h (HONOR_SNANS, [...]): Replace macros with 3 overloaded declarations.

2014-12-12  Marc Glisse  <marc.glisse@inria.fr>

* real.h (HONOR_SNANS, HONOR_INFINITIES, HONOR_SIGNED_ZEROS,
HONOR_SIGN_DEPENDENT_ROUNDING): Replace macros with 3 overloaded
declarations.
* real.c (HONOR_NANS): Fix indentation.
(HONOR_SNANS, HONOR_INFINITIES, HONOR_SIGNED_ZEROS,
HONOR_SIGN_DEPENDENT_ROUNDING): Define three overloads.
* builtins.c (fold_builtin_cproj, fold_builtin_signbit,
fold_builtin_fmin_fmax, fold_builtin_classify): Simplify argument
of HONOR_*.
* fold-const.c (operand_equal_p, fold_comparison, fold_binary_loc):
Likewise.
* gimple-fold.c (gimple_val_nonnegative_real_p): Likewise.
* ifcvt.c (noce_try_move, noce_try_minmax, noce_try_abs): Likewise.
* omp-low.c (omp_reduction_init): Likewise.
* rtlanal.c (may_trap_p_1): Likewise.
* simplify-rtx.c (simplify_const_relational_operation): Likewise.
* tree-ssa-dom.c (record_equality, record_edge_info): Likewise.
* tree-ssa-phiopt.c (value_replacement, abs_replacement): Likewise.
* tree-ssa-reassoc.c (eliminate_using_constants): Likewise.
* tree-ssa-uncprop.c (associate_equivalences_with_edges): Likewise.

From-SVN: r218663