Remove redundant conditional expressions in <system_error>

* include/std/system_error (error_code::operator bool(),
error_condition::operator bool()): Remove redundant conditional
expression.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227871 138bc75d-0d04-0410-961f-82ee72b054a4

Only do shrink_to_fit() when exceptions enabled

* include/bits/allocator.h (__shrink_to_fit_aux<T, true>::_S_do_it):
Do nothing if exceptions are disabled.
* include/bits/basic_string.h (basic_string::shrink_to_fit): Likewise.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227870 138bc75d-0d04-0410-961f-82ee72b054a4

Split up optabs.[hc]

optabs.[hc] is a bit of a behemoth.  It includes basic functions for querying
what a target can do, related tree- and gimple-level query functions,
related rtl-level query functions, and the functions that actually
generate code.  Some gimple optimisations therefore need:

#include "insn-config.h"
#include "expmed.h"
#include "dojump.h"
#include "explow.h"
#include "emit-rtl.h"
#include "varasm.h"
#include "stmt.h"
#include "expr.h"

purely to query whether the target has support for a particular operation.

This patch splits optabs up as follows:

      - optabs-query.[hc]: IL-independent functions for querying what a target
          can do natively.
      - optabs-tree.[hc]: tree and gimple query functions (an extension of
          optabs-query.[hc]).
      - optabs-libfuncs.[hc]: optabs-specific libfuncs (an extension of
          libfuncs.h)
      - optabs.h: For now includes optabs-query.h and optabs-libfuncs.h.

Only two files outside optabs need to include both optabs.h and
optabs-tree.h: expr.c and function.c.  I think that's expected given
that both are related to expand.

It might be good to split optabs.h further, but this is already quite
a big patch.

I changed can_conditionally_move_p from returning an int to returning
a bool and fixed a few formatting glitches.  There should be no other
changes to the functions themselves.

gcc/
* Makefile.in (OBJS): Add optabs-libfuncs.o, optabs-query.o
and optabs-tree.o.
(GTFILES): Replace optabs.c with optabs-libfunc.c.
* genopinit.c (main): Add an include guard to insn-opinit.h.
Protect the rtx_code parts with NUM_RTX_CODE.
* optabs.h: Split parts out to...
* optabs-libfuncs.h, optabs-query.h, optabs-tree.h: ...these
new files.
* optabs.c: Split parts out to...
* optabs-libfuncs.c, optabs-query.c, optabs-tree.c: ...these
new files.
* cilk-common.c: Include optabs-query.h rather than optabs.h.
* fold-const.c: Likewise.
* target-globals.c: Likewise.
* tree-if-conv.c: Likewise.
* tree-ssa-forwprop.c: Likewise.
* tree-ssa-loop-prefetch.c: Likewise.
* tree-ssa-math-opts.c: Include optabs-tree.h rather than
optabs.h.  Remove unncessary include files.
* tree-ssa-phiopt.c: Likewise.
* tree-ssa-reassoc.c: Likewise.
* tree-switch-conversion.c: Likewise.
* tree-vect-data-refs.c: Likewise.
* tree-vect-generic.c: Likewise.
* tree-vect-loop.c: Likewise.
* tree-vect-patterns.c: Likewise.
* tree-vect-slp.c: Likewise.
* tree-vect-stmts.c: Likewise.
* tree-vrp.c: Likewise.
* toplev.c: Include optabs-query.h and optabs-libfuncs.h
rather than optabs.h.
* expr.c: Include optabs-tree.h.
* function.c: Likewise.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227865 138bc75d-0d04-0410-961f-82ee72b054a4

compiler: Issue channel type errors earlier.

    When asking for the type of a receive operation, the compiler would
    return an error type if the receive operator was being used on an
    invalid channel type and the error would be reported in a later pass.
    There are several ways that the type checking pass would not see
    the original node and fail to issue the error.  This patch modifies
    receive operations to give an error immediately once it is known that
    the channel type is invalid.

    Fixes golang/go#12323.

    Reviewed-on: https://go-review.googlesource.com/13987

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227863 138bc75d-0d04-0410-961f-82ee72b054a4

PR middle-end/65958
* config/arm/linux-elf.h (STACK_CHECK_STATIC_BUILTIN): Define.
* config/arm/arm-protos.h (output_probe_stack_range): Declare.
* config/arm/arm.c: Include common/common-target.h.
(use_return_insn): Return 0 if the static chain register was saved
above a non-APCS frame.
(arm_compute_static_chain_stack_bytes): Adjust for stack checking.
(struct scratch_reg): New.
(get_scratch_register_on_entry): New function.
(release_scratch_register_on_entry): Likewise.
(arm_emit_probe_stack_range): Likewise.
(output_probe_stack_range): Likewise.
(arm_expand_prologue): Factor out code dealing with the IP register
for nested function and adjust it for stack checking.
Invoke arm_emit_probe_stack_range if static builtin stack checking
is enabled.
(thumb1_expand_prologue): Sorry out if static builtin stack checking
is enabled.
(arm_expand_epilogue): Add the saved static chain register, if any, to
the amount of pre-pushed registers to pop.
(arm_frame_pointer_required): Return true if static stack checking is
enabled and we want to catch the exception with the EABI unwinder.
* config/arm/unspecs.md (UNSPEC_PROBE_STACK): New constant.
(UNSPEC_PROBE_STACK_RANGE): Likewise.
* config/arm/arm.md (probe_stack): New insn.
(probe_stack_range): Likewise.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227860 138bc75d-0d04-0410-961f-82ee72b054a4

2015-09-17  Richard Biener  <rguenther@suse.de>

* genmatch.c (parser::parse_expr): Improve error message
for mis-placed flags.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227859 138bc75d-0d04-0410-961f-82ee72b054a4

2015-09-17  Richard Biener  <rguenther@suse.de>

* passes.c (rest_of_decl_compilation): Always call early_global_decl
debug hook when we created a varpool node.
* dwarf2out.c (dwarf2out_late_global_decl): When in LTO call
dwarf2out_early_global_decl, when not just add location or
value attributes to existing DIEs.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227857 138bc75d-0d04-0410-961f-82ee72b054a4

2015-09-17  Paul Thomas  <pault@gcc.gnu.org>

PR fortran/52846
PR fortran/67588
* module.c : Add static no_module_procedures.
(gfc_match_submodule): Correct memory leakage caused during the
freeing of use_lists.
(mio_symbol_attribute): Reset above if module procedure is
encountered.
(gfc_dump_module): Set above and exit without writing smod file
if it reset.
* gfortran.texi : Add section on submodule support.

2015-09-17  Paul Thomas  <pault@gcc.gnu.org>

PR fortran/52846
* gfortran.dg/public_private_module_5.f90: Add module procedure
trigger_smod to ensure that the smod file is written.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227855 138bc75d-0d04-0410-961f-82ee72b054a4

[AArch64] Implement copysign[ds]f3

gcc/

* config/aarch64/aarch64.md (copysigndf3): New.
(copysignsf3): Likewise.

gcc/testsuite/

* gcc.target/aarch64/copysign_1.c: New.
* gcc.target/aarch64/copysign_2.c: New.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227849 138bc75d-0d04-0410-961f-82ee72b054a4

Fix LRA regressions on 64-bit SPARC.

gcc/
* config/sparc/sparc-protos.h (sparc_secondary_memory_needed):
Declare.
* config/sparc/sparc.c (sparc_secondary_memory_needed): New
function.
* config/sparc/sparc.h (SECONDARY_MEMORY_NEEDED): Use it.
(HARD_REGNO_CALLER_SAVE_MODE): Define.
* config/sparc/sparc.md (sethi_di_medlow, losum_di_medlow, seth44)
(setm44, setl44, sethh, setlm, sethm, setlo, embmedany_sethi)
(embmedany_losum, embmedany_brsum, embmedany_textuhi)
(embmedany_texthi, embmedany_textulo, embmedany_textlo): Do not
provide when flag_pic.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227847 138bc75d-0d04-0410-961f-82ee72b054a4

2015-09-17  Richard Biener  <rguenther@suse.de>

* cp-tree.h (note_decl_for_pch): Remove.
* class.c (build_clone): Do not call note_decl_for_pch.
* semantics.c (finish_member_declaration): Likewise.
(note_decl_for_pch): Remove.
* decl2.c (c_parse_final_cleanups): Mangle all globals before
writing the PCH.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227846 138bc75d-0d04-0410-961f-82ee72b054a4

Fix build failure for SH.
* config/sh/sh.c (label_ref_list_d_pool): Adjust to object_allocator change.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227845 138bc75d-0d04-0410-961f-82ee72b054a4

PR tree-optimization/66388
* tree-ssa-loop-ivopts.c (struct iv, iv_cand, ivopts_data): New
fields.
(dump_iv): Dump no_overflow information.
(alloc_iv): Initialize new field for struct iv.
(mark_bivs): Count number of no_overflow bivs.
(find_deriving_biv_for_expr, record_biv_for_address_use): New
functions.
(idx_find_step): Call new functions above.
(add_candidate_1, add_candidate): New paramter.
(add_iv_candidate_for_biv): Add sizetype cand for BIV.
(get_computation_aff): Simplify convertion of cand for BIV.
(get_computation_cost_at): Step cand's base if necessary.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227844 138bc75d-0d04-0410-961f-82ee72b054a4

* tree-ssa-loop-niter.c (tree_simplify_using_condition_1): New
parameter.
(tree_simplify_using_condition): Ditto.
(simplify_using_initial_conditions): Ditto.
(loop_exits_before_overflow): Pass new argument to function
simplify_using_initial_conditions.  Remove case for type conversions
simplification.
* tree-ssa-loop-niter.h (simplify_using_initial_conditions): New
parameter.
* tree-scalar-evolution.c (simple_iv): Simplify type conversions
in iv base using loop initial conditions.

gcc/testsuite/ChangeLog
* gcc.dg/tree-ssa/loop-bound-2.c: New test.
* gcc.dg/tree-ssa/loop-bound-4.c: New test.
* gcc.dg/tree-ssa/loop-bound-6.c: New test.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227843 138bc75d-0d04-0410-961f-82ee72b054a4

[PATCH] Pass in avail_expr_stack and setup edge_infos earlier

PR tree-optimization/47679
* tree-ssa-dom.c (free_edge_info): Factored out of free_all_edge_infos.
(free_all_edge_infos): Use it.
(allocate_edge_info): Free preexisting edge info data.
(pass_dominator::execute): Set up initial edge info structures.
(dom_opt_dom_walker::thread_across_edge): Pass avail_expr_stack to
thread_across_edge.
* tree-ssa-threadedge.c (thread_across_edge): Accept new argument.  If
non-null, then push/pop markers appropriately.
* tree-ssa-threadedge.h (thread_across_edge): Update prototype.
* tree-vrp.c (identify_jump_threads): Pass NULL for new argument to
thread-across_edge.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227842 138bc75d-0d04-0410-961f-82ee72b054a4

[FT32] Fix memory address space predicate.

gcc/

* config/ft32/ft32.c Fix the memory address space predicate.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227841 138bc75d-0d04-0410-961f-82ee72b054a4

Daily bump.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227840 138bc75d-0d04-0410-961f-82ee72b054a4

PR target/67573
* config/sh/sh.md: Add early clobber to scratch operand of *call_*pcrel
insn_and_split so not to CSE scratch reg.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227837 138bc75d-0d04-0410-961f-82ee72b054a4

Implement filesystem::canonical() without realpath

PR libstdc++/67173
* acinclude.m4 (GLIBCXX_CHECK_FILESYSTEM_DEPS): Check _XOPEN_VERSION
and PATH_MAX for _GLIBCXX_USE_REALPATH.
* config.h.in: Regenerate.
* configure: Regenerate.
* src/filesystem/ops.cc: (canonical) [!_GLIBCXX_USE_REALPATH]: Add
alternative implementation.
* testsuite/experimental/filesystem/operations/canonical.cc: New.
* testsuite/experimental/filesystem/operations/exists.cc: Add more
tests.
* testsuite/experimental/filesystem/operations/absolute.cc: Add test
variables.
* testsuite/experimental/filesystem/operations/copy.cc: Likewise.
* testsuite/experimental/filesystem/operations/current_path.cc:
Likewise.
* testsuite/experimental/filesystem/operations/file_size.cc: Likewise.
* testsuite/experimental/filesystem/operations/status.cc: Likewise.
* testsuite/experimental/filesystem/operations/temp_directory_path.cc:
Likewise.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227836 138bc75d-0d04-0410-961f-82ee72b054a4

Move check_global_declaration from toplev.c to cgraphunit.c

Unfortunately, toplev.c is a kitchen sink of things that do not belong anywhere
in particular. For example, check_global_declarations is only used in
cgraphunit.c. Moving it there allows us to make it static and remove one call
to symtab_node::get.

gcc/ChangeLog:

2015-09-16  Manuel López-Ibáñez  <manu@gcc.gnu.org>

* toplev.h (check_global_declaration): Remove declaration.
* toplev.c (check_global_declaration): Move to ...
* cgraphunit.c: ... here. Make it static and pass a symtab_node *.
(analyze_functions): Update call.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227835 138bc75d-0d04-0410-961f-82ee72b054a4

compiler: Don't crash on erroneous channel reads.

    Fixes golang/go#12320.

    Reviewed-on: https://go-review.googlesource.com/13932

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227834 138bc75d-0d04-0410-961f-82ee72b054a4

Fix endianness assumption in LRA.

gcc/
* lra-constraints.c (simplify_operand_subreg): Do not assume that
lowpart of a SUBREG has offset zero.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227833 138bc75d-0d04-0410-961f-82ee72b054a4

2015-09-16  John Marino  <gnugcc@marino.st>

* gfortran.dg/read_dir.f90: XFAIL this testcase on DragonFly.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227832 138bc75d-0d04-0410-961f-82ee72b054a4

[PATCH] Move code out of tree-ssa-dom into tree-ssa-scopedtables

PR tree-optimization/47679
* tree-ssa-dom.c (enum expr_kind): Moved from here to
tree-ssa-scopedtables.h.
(struct hashable_expr, class expr_hash_elt): Likewise.
(struct expr_elt_hasher, class avail_exprs_stack): Likewise.
Move associated methods into tree-ssa-scopedtables.c.
(avail_expr_hash, initialize_expr_from_cond): Similarly.
(hashable_expr_equal_p, add_expr_commutative): Likewise.
(add_hashable_expr): Likewise.
(record_cond): Delete element directly.
* tree-ssa-scopedtables.h (avail_expr_stack, const_and_copies): Add
private copy ctor and assignment operator methods.
(expr_elt_hasher): Inline trivial methods.
(initialize_expr_from_cond): Prototype.
* tree-ssa-scopedtables.c: Add necessary includes, functions and
methods that were previously in tree-ssa-dom.c.  Improve various
comments.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227831 138bc75d-0d04-0410-961f-82ee72b054a4

compiler: Don't crash on malformed numeric constants.

    Fixes golang/go#11548.

    Reviewed-on: https://go-review.googlesource.com/13794

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227830 138bc75d-0d04-0410-961f-82ee72b054a4

2015-09-16  Paolo Carlini  <paolo.carlini@oracle.com>

* doc/invoke.texi ([Wsubobject-linkage]): Extend documentation.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227828 138bc75d-0d04-0410-961f-82ee72b054a4

shrink-wrap: Fix up partitions (PR67587)

With the new shrink-wrap algorithm, blocks reachable both with and
without prologue are duplicated, and their incoming edges are then
distributed accordingly.  So we need to call fixup_partitions.

2015-09-16  Segher Boessenkool  <segher@kernel.crashing.org>

PR bootstrap/67587
* function.c (rest_of_handle_thread_prologue_and_epilogue): Call
fixup_partitions.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227827 138bc75d-0d04-0410-961f-82ee72b054a4

2015-09-16  Richard Biener  <rguenther@suse.de>

PR middle-end/67253
* cfgexpand.c (expand_gimple_stmt_1): Do not clobber
location of possibly shared trees.

* gcc.dg/torture/pr67253.c: New testcase.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227826 138bc75d-0d04-0410-961f-82ee72b054a4

2015-09-16  Richard Biener  <rguenther@suse.de>

PR middle-end/67271
* fold-const.c (native_encode_expr): Bail out on bogus offsets.

* gcc.dg/pr67271.c: New testcase.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227825 138bc75d-0d04-0410-961f-82ee72b054a4

* tree-ssa-sccvn.c (ao_ref_init_from_vn_reference): Use offset_int for
offset and size computations instead of HOST_WIDE_INT.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227819 138bc75d-0d04-0410-961f-82ee72b054a4

2015-09-16  Richard Biener  <rguenther@suse.de>

PR middle-end/67442
* fold-const.c (extract_muldiv_1): Properly extend multiplication
result before builting a tree via wide_int_to_tree.

* gcc.dg/torture/pr67442.c: New testcase.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227818 138bc75d-0d04-0410-961f-82ee72b054a4

Share memory blocks between pool allocators

gcc/
* Makefile.in: Add memory-block.cc
(pool_allocator::initialize): Use fixed block size.
(pool_allocator::release): Use memory_block_pool.
(pool_allocator::allocate): Likewise.
* asan.c (asan_mem_ref_pool): Adjust to use common block size in all
object pools.
* cfg.c (initialize_original_copy_tables): Likewise.
* cselib.c (elt_list_pool, elt_loc_list_pool,
cselib_val_pool): Likewise.
* df-problems.c (df_chain_alloc): Likewise.
* df-scan.c (df_scan_alloc): Likewise.
* dse.c (cse_store_info_pool, rtx_store_info_pool,
read_info_type_pool, insn_info_type_pool, bb_info_pool,
group_info_pool, deferred_change_pool): Likewise.
* et-forest.c (et_nodes, et_occurrences): Likewise.
* ipa-cp.c (ipcp_cst_values_pool, ipcp_sources_pool,
ipcp_agg_lattice_pool): Likewise.
* ipa-inline-analysis.c (edge_predicate_pool): Likewise.
* ipa-profile.c (histogram_pool): Likewise.
* ipa-prop.c (ipa_refdesc_pool): Likewise.
* ira-build.c (live_range_pool, allocno_pool, object_pool,
initiate_cost_vectors, pref_pool, copy_pool): Likewise.
* ira-color.c (update_cost_record_pool): Likewise.
* lra-lives.c (lra_live_range_pool): Likewise.
* lra.c (lra_insn_reg_pool, lra_copy_pool): Likewise.
* memory-block.cc: New file.
* memory-block.h: New file.
* regcprop.c (queued_debug_insn_change_pool): Use common block size.
* sched-deps.c (sched_deps_init): Likewise.
* sel-sched-ir.c (sched_lists_pool): Likewise.
* stmt.c (expand_case, expand_sjlj_dispatch_table): Likewise.
* tree-sra.c (access_pool): Likewise.
* tree-ssa-math-opts.c (pass_cse_reciprocals::execute): Likewise.
* tree-ssa-pre.c (pre_expr_pool, bitmap_set_pool): Likewise.
* tree-ssa-reassoc.c (operand_entry_pool): Likewise.
* tree-ssa-sccvn.c (allocate_vn_table): Likewise.
* tree-ssa-strlen.c (strinfo_pool): Likewise.
* tree-ssa-structalias.c (variable_info_pool): Likewise.
* var-tracking.c (attrs_def_pool, var_pool, valvar_pool,
location_chain_pool, shared_hash_pool, loc_exp_dep_pool): Likewise.

gcc/c-family/
* c-format.c (check_format_arg): Adjust to use common block size in all
object pools.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227817 138bc75d-0d04-0410-961f-82ee72b054a4

Daily bump.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227816 138bc75d-0d04-0410-961f-82ee72b054a4

compiler: Report init dependency errors with builtin functions.

    Fixes golang/go#12319.

    Reviewed-on: https://go-review.googlesource.com/13931

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227813 138bc75d-0d04-0410-961f-82ee72b054a4

libgo: If compiler can split-stack and linker can not, use -fno-split-stack.

    If the compiler supports split-stack but we are using a gold linker that
    does not, as happens on PPC with current GCC but old gold, then we need
    to compile the Go code with -fno-split-stack to avoid a linker error
    avoid the inability to call from split-stack code to non-split-stack
    code.

    Reviewed-on: https://go-review.googlesource.com/14598

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227811 138bc75d-0d04-0410-961f-82ee72b054a4

xtensa: fix xtensa_fallback_frame_state for call0 ABI

2015-09-15  Max Filippov  <jcmvbkbc@gmail.com>
gcc/
* config/xtensa/xtensa.h (DWARF_ALT_FRAME_RETURN_COLUMN): New
definition.
(DWARF_FRAME_REGISTERS): Reserve space for one extra register in
call0 ABI.

libgcc/
* config/xtensa/linux-unwind.h (xtensa_fallback_frame_state):
Add support for call0 ABI.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227809 138bc75d-0d04-0410-961f-82ee72b054a4

xtensa: fix TLS calls for call0 ABI

2015-09-15  Max Filippov  <jcmvbkbc@gmail.com>
gcc/
* config/xtensa/xtensa.c (xtensa_call_tls_desc): Use a10 or a2
to pass TLS call argument, according to current ABI.
* config/xtensa/xtensa.md (tls_call pattern): Use callx8 or
callx0 for TLS call, according to current ABI.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227808 138bc75d-0d04-0410-961f-82ee72b054a4

* tree-eh.c (lower_try_finally_dup_block): Clear location information
on stack restore statements.
(decide_copy_try_finally): Do not consider a stack restore statement as
coming from sources.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227805 138bc75d-0d04-0410-961f-82ee72b054a4

* config/alpha/alpha.c (alpha_expand_block_clear): Use
HOST_WIDE_INT_M1U instead of ~(HOST_WIDE_INT)0 when shifting.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227804 138bc75d-0d04-0410-961f-82ee72b054a4

PR c/67580
* c-decl.c (tag_exists_p): New function.
* c-parser.c (c_parser_declaration_or_fndef): Give a hint when
struct/union/enum keywords are missing.
* c-tree.h (tag_exists_p): Declare.

* gcc.dg/pr67580.c: New test.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227803 138bc75d-0d04-0410-961f-82ee72b054a4

libgo: test linking split-stack and non-split-stack together

    PPC has split-stack support in current GCC, but old version of gold will
    reject attempts to link PPC split-stack and non-split-stack code
    together.  Test for that, and don't compile the C code with
    -fsplit-stack if it doesn't work.

    Reviewed-on: https://go-review.googlesource.com/14594

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227802 138bc75d-0d04-0410-961f-82ee72b054a4

[PATCH] More class-ification of DOM

        PR tree-optimization/47679
* tree-ssa-dom.c (expr_hash_elt): Now a class with ctors/dtors,
methods and private members.
(avail_exprs_stack): Similarly.  Change type of global
from a pair of expr_hash_elt_t to the new class.
(expr_elt_hasher::hash): Corresponding changes.
(expr_elt_hasher::equal): Similarly.
(avail_expr_hash): Similarly.
(pass_dominator::execute): Similarly.
(dom_opt_dom_walker::thread_across_edge): Similarly.
(record_cond): Similarly.
(dom_opt_dom_walker::before_dom_children): Similarly.
(dom_opt_dom_walker::after_dom_children): Similarly.
(lookup_avail_expr): Likewise.
(initialize_hash_element): Now a expr_hash_elt constructor.
(initialize_hash_element_from_expr): Similarly.
(free_expr_hash_elt_contents): Now a dtor for class expr_hash_elt.
(free_expr_hash_elt): Call dtor for the element.
(remove_local_expressions_from_table): Now the "pop_to_marker"
method in the available_exprs_stack class.
(avail_expr_stack::record_expr): Method factored out.
(print_expr_hash_elt): Now a method in the expr_hash_elt class.
Fix formatting.
(hashable_expr_equal_p): Fix formatting.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227801 138bc75d-0d04-0410-961f-82ee72b054a4

Change of location_get_source_line signature

gcc/ChangeLog:
* input.h (location_get_source_line): Drop "expanded_location"
param in favor of a file and line number.
* input.c (location_get_source_line): Likewise.
(dump_location_info): Update for change in signature of
location_get_source_line.
* diagnostic.c (diagnostic_print_caret_line): Likewise.

gcc/c-family/ChangeLog:
* c-format.c (location_from_offset): Update for change in
signature of location_get_source_line.
* c-indentation.c (get_visual_column): Likewise.
(line_contains_hash_if): Likewise.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227800 138bc75d-0d04-0410-961f-82ee72b054a4

* defaults.h (STACK_OLD_CHECK_PROTECT): Adjust for -fno-exceptions.
Bump to 4KB for SJLJ exceptions.
(STACK_CHECK_PROTECT): Likewise.  Bump to 8KB for SJLJ exceptions.
* doc/tm.texi.in (STACK_CHECK_PROTECT): Adjust.
* doc/tm.texi: Regenerate.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227799 138bc75d-0d04-0410-961f-82ee72b054a4

[ARM] Fix arm bootstrap failure due to -Werror=shift-negative-value

* config/arm/arm.c (arm_gen_constant): Use HOST_WIDE_INT_M1U instead
of -1 when shifting.  Change type of val to unsigned HOST_WIDE_INT.
Update prototype.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227798 138bc75d-0d04-0410-961f-82ee72b054a4

2015-09-15  Richard Biener  <rguenther@suse.de>

PR tree-optimization/67470
* tree-ssa-loop-im.c (execute_sm_if_changed): Preserve PHI
structure for PHI hoisting by inserting a forwarder block
if appropriate.

* gcc.dg/torture/pr67470.c: New testcase.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227797 138bc75d-0d04-0410-961f-82ee72b054a4

2015-09-15  Christian Bruel  <christian.bruel@st.com>

* config/arm/arm.c (TARGET_OPTION_PRINT): Define.
(arm_option_print): New function.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227796 138bc75d-0d04-0410-961f-82ee72b054a4

2015-09-15  Christian Bruel  <christian.bruel@st.com>

PR target/52144
* config/arm/arm.c (arm_option_params_internal): Remove opts parameter.
* config/arm/arm-c.c (arm_cpu_builtins): Declare static.
Remove flags parameter.
* config/arm/arm.h (TARGET_32BIT_P, TARGET_ARM_QBIT_P)
(TARGET_ARM_SAT_P, TARGET_IDIV_P, TARGET_HAVE_LDREX_P)
(TARGET_HAVE_LDREXBH_P, TARGET_HAVE_LDREXD_P, TARGET_DSP_MULTIPLY_P)
(TARGET_ARM_FEATURE_LDREX_P, TARGET_INT_SIMD_P): Redefine macros with...
(TARGET_ARM_SAT, TARGET_IDIV, TARGET_HAVE_LDREX)
(TARGET_HAVE_LDREXBH, TARGET_HAVE_LDREXD, TARGET_ARM_FEATURE_LDREX)
(TARGET_DSP_MULTIPLY, TARGET_INT_SIMD): Redefined macros.
* gcc/config/arm/arm-protos.h (arm_cpu_builtins): Remove declaration.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227795 138bc75d-0d04-0410-961f-82ee72b054a4

[AArch64 array_mode 8/8] Add d-registers to TARGET_ARRAY_MODE_SUPPORTED_P

gcc/:

* config/aarch64/aarch64.h (AARCH64_VALID_SIMD_DREG_MODE): New.

* config/aarch64/aarch64.c (aarch64_array_mode_supported_p): Add
AARCH64_VALID_SIMD_DREG_MODE.

gcc/testsuite/:

* gcc.target/aarch64/vect_int32x2x4_1.c: New.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227794 138bc75d-0d04-0410-961f-82ee72b054a4

[AArch64 array_mode 7/8] Combine the expanders using VSTRUCT:nregs

* config/aarch64/aarch64-simd.md (aarch64_ld2r<mode>,
aarch64_ld3r<mode>, aarch64_ld4r<mode>): Combine together, making...
(aarch64_simd_ld<VSTRUCT:nregs>r<VALLDIF:mode>): ...this.
(aarch64_ld2_lane<mode>, aarch64_ld3_lane<mode>,
aarch64_ld4_lane<mode>): Combine together, making...
(aarch64_ld<VSTRUCT:nregs>_lane<VALLDIF:mode>): ...this.
(aarch64_st2_lane<mode>, aarch64_st3_lane<mode>,
aarch64_st4_lane<mode>): Combine together, making...
(aarch64_st<VSTRUCT:nregs>_lane<VALLDIF:mode>): ...this.
* config/aarch64/iterators.md (nregs): Add comment.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227793 138bc75d-0d04-0410-961f-82ee72b054a4

* c-decl.c (lookup_label): Return NULL_TREE instead of 0.
(lookup_tag): Change the type of THISLEVEL_ONLY to bool.
Return NULL_TREE instead of 0.
(lookup_name): Return NULL_TREE instead of 0.
(lookup_name_in_scope): Likewise.
(shadow_tag_warned): Use true instead of 1 and NULL_TREE instead of 0.
(parser_xref_tag): Use false instead of 0.
(start_struct): Use true instead of 1.
(start_enum): Use true instead of 1 and NULL_TREE instead of 0.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227791 138bc75d-0d04-0410-961f-82ee72b054a4

[AArch64 array_mode 6/8] Remove V_TWO_ELEM, again using BLKmode + set_mem_size.

* config/aarch64/aarch64-simd.md (aarch64_simd_ld2r<mode>):
Change operand mode from <V_TWO_ELEM> to BLK.
(aarch64_vec_load_lanesoi_lane<mode>): Likewise.
(aarch64_vec_store_lanesoi_lane<mode): Likewise
(aarch64_ld2r<mode>): Generate MEM rtx with BLKmode, call set_mem_size.
(aarch64_ld2_lane<mode>): Likewise.
(aarch64_st2_lane<VQ:mode>): Likewise.
* config/aarch64/iterators.md (V_TWO_ELEM): Remove.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227790 138bc75d-0d04-0410-961f-82ee72b054a4

[AArch64 array_mode 5/8] Remove V_FOUR_ELEM, again using BLKmode + set_mem_size.

* config/aarch64/aarch64-simd.md (aarch64_simd_ld4r<mode>):
Change operand mode from <V_FOUR_ELEM> to BLK.
(aarch64_vec_load_lanesxi_lane<mode>): Likewise.
(aarch64_vec_store_lanesxi_lane<mode): Likewise.
(aarch64_ld4r<mode>): Generate MEM rtx with BLKmode, call set_mem_size.
(aarch64_ld4_lane<mode>): Likewise.
(aarch64_st4_lane<mode>): Likewise.
* config/aarch64/iterators.md (V_FOUR_ELEM): Remove.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227789 138bc75d-0d04-0410-961f-82ee72b054a4

2015-09-15  Richard Biener  <rguenther@suse.de>

PR middle-end/67563
* gimple-fold.c (gimplify_and_update_call_from_tree): Do not
transfer EH info from old to new stmt.
(replace_call_with_value): Likewise.
(replace_call_with_call_and_fold): Likewise.
(gimple_fold_builtin_memory_op): Likewise.
(gimple_fold_builtin_memset): Likewise.
(gimple_fold_builtin_stpcpy): Likewise.
(gimple_fold_call): Likewise.

* gcc.dg/pr67563.c: New testcase.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227788 138bc75d-0d04-0410-961f-82ee72b054a4

[AArch64 array_mode 4/8] Remove EImode

* config/aarch64/aarch64.c (aarch64_simd_attr_length_rglist): Update
comment.
* config/aarch64/aarch64-builtins.c (ei_UP): Remove.
(aarch64_simd_intEI_type_node): Likewise.
(aarch64_simd_builtin_std_type): Remove EImode case.
(aarch64_init_simd_builtin_types): Don't create/add intEI_type_node.
* config/aarch64/aarch64-modes.def: Remove EImode.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227787 138bc75d-0d04-0410-961f-82ee72b054a4

runtime: Ignore stack sizes when deciding when to GC.

    This restores https://golang.org/cl/6081043 which was lost accidentally
    when updating a new version of libgo in https://golang.org/cl/22440043 .

    Reviewed-on: https://go-review.googlesource.com/14569

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227784 138bc75d-0d04-0410-961f-82ee72b054a4

[AArch64 array_mode 3/8] Stop using EImode in aarch64-simd.md and iterators.md

* config/aarch64/aarch64-simd.md (aarch64_simd_ld3r<mode>):
Change operand mode from <V_THREE_ELEM> to BLK.
(aarch64_vec_load_lanesci_lane<mode>): Likewise.
(aarch64_vec_store_lanesci_lane<mode>): Likewise.
(aarch64_ld3r<mode>): Generate MEM rtx with BLKmode, call set_mem_size.
(aarch64_ld3_lane<mode>): Likewise.
(aarch64_st3_lane<mode>): Likewise.
* config/aarch64/iterators.md (V_THREE_ELEM): Remove.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227783 138bc75d-0d04-0410-961f-82ee72b054a4

[AArch64 array_mode 2/8] Remove VSTRUCT_DREG, use BLKmode for d-reg aarch64_st/ld expands

* config/aarch64/aarch64-simd.md
(aarch64_ld2<mode>_dreg VD & DX, aarch64_st2<mode>_dreg VD & DX ):
Change all TImode operands to BLKmode.
(aarch64_ld3<mode>_dreg VD & DX, aarch64_st3<mode>_dreg VD & DX):
Change all EImode operands to BLKmode.
(aarch64_ld4<mode>_dreg VD & DX, aarch64_st4<mode>_dreg VD & DX):
Change all OImode operands to BLKmode.

(aarch64_ld<VSTRUCT:nregs><VDC:mode>): Generate MEM rtx with BLKmode
and call set_mem_size.
(aarch64_st<VSTRUCT:nregs><VDC:mode>): Likewise

* config/aarch64/iterators.md (VSTRUCT_DREG): Remove.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227782 138bc75d-0d04-0410-961f-82ee72b054a4

[AArch64 array_mode 1/8] Rename vec_store_lanes<mode>_lane to aarch64_vec_store_lanes<mode>_lane

* config/aarch64/aarch64-simd.md (vec_store_lanesoi_lane<mode>): Rename
to...
(aarch64_vec_store_lanesoi_lane<mode>): ...this.

(vec_store_lanesci_lane<mode>): Rename to...
(aarch64_vec_store_lanesci_lane<mode>): ...this.

(vec_store_lanesxi_lane<mode>): Rename to...
(aarch64_vec_store_lanesxi_lane<mode>): ...this.

(aarch64_st2_lane<mode>, aarch64_st3_lane<mode>,
aarch64_st4_lane<mode>): Follow renaming.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227781 138bc75d-0d04-0410-961f-82ee72b054a4

S/390: Add missing brackets.

gcc/ChangeLog:

2015-09-15  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

* config/s390/s390.c (s390_const_operand_ok): Add missing
brackets.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227780 138bc75d-0d04-0410-961f-82ee72b054a4

2015-09-15  Richard Biener  <rguenther@suse.de>

PR lto/67568
* lto-streamer.h (lto_location_cache::current_sysp): Properly
initialize.
* lto-streamer-out.c (clear_line_info): Likewise.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227779 138bc75d-0d04-0410-961f-82ee72b054a4

2015-09-15  Richard Biener  <rguenther@suse.de>

* doc/match-and-simplify.texi: Fix wording.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227778 138bc75d-0d04-0410-961f-82ee72b054a4

libgo: don't provide ustat on arm64 GNU/Linux

    This avoids linker warnings when linking against glibc, as apparently
    arm64 GNU/Linux does not support the ustat system call.

    Also update to automake 1.11.6, as that is the new GCC standard.

    Reviewed-on: https://go-review.googlesource.com/14567

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227777 138bc75d-0d04-0410-961f-82ee72b054a4

* tree-ssa-loop-ivopts.c (get_shiftadd_cost): Strip
unnecessary type conversion in op1.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227776 138bc75d-0d04-0410-961f-82ee72b054a4

shrink-wrap: Rewrite

This patch rewrites the shrink-wrapping algorithm, allowing non-linear
pieces of CFG to be duplicated for use without prologue instead of just
linear pieces.

* shrink-wrap.c (requires_stack_frame_p): Fix formatting.
(dup_block_and_redirect): Delete function.
(can_dup_for_shrink_wrapping): New function.
(fix_fake_fallthrough_edge): New function.
(try_shrink_wrapping): Rewrite function.
(convert_to_simple_return): Call fix_fake_fallthrough_edge.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227775 138bc75d-0d04-0410-961f-82ee72b054a4

* configure.ac: [SH] Fix target pattern for TLS support test so to
enable more arches.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227774 138bc75d-0d04-0410-961f-82ee72b054a4

Daily bump.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227773 138bc75d-0d04-0410-961f-82ee72b054a4

[PATCH] Minor DOM cleanup

        PR tree-optimization/47679
* tree-ssa-dom.c (avail_expr_hash): Pass a pointer to a real
type rather than void *.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227762 138bc75d-0d04-0410-961f-82ee72b054a4

PR c++/44282

* mangle.c (write_CV_qualifiers_for_type): Also warn about regparm
mangling with lower -fabi-version.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227761 138bc75d-0d04-0410-961f-82ee72b054a4

The flag diagnostic_context::some_warnings_are_errors controls whether
to give the message "all warnings being treated as errors". However, when
warnings are buffered and then discarded, this flag is not reset. It turns
out we do not need this flag at all, since we already count explicitly how
many warnings were converted into errors, and this number is kept up to
date for the buffered diagnostics used by Fortran.

gcc/ChangeLog:

2015-09-14  Manuel López-Ibáñez  <manu@gcc.gnu.org>

PR fortran/67460
* diagnostic.c (diagnostic_initialize): Do not set
some_warnings_are_errors.
(diagnostic_finish): Use DK_WERROR count instead.
(diagnostic_report_diagnostic): Do not set
some_warnings_are_errors.
* diagnostic.h (struct diagnostic_context): Remove
some_warnings_are_errors.

gcc/testsuite/ChangeLog:

2015-09-14  Manuel López-Ibáñez  <manu@gcc.gnu.org>

PR fortran/67460
* gfortran.dg/pr67460.f90: New test.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227760 138bc75d-0d04-0410-961f-82ee72b054a4

compiler: Ignore result context in constant expressions.

    When evaluating a constant expression, the gofrontend would incorrectly
    force each operand to be represented as the resulting type before
    checking if the operation was valid with the untyped constants.
    According to the language specification on constant
    expressions(http://golang.org/ref/spec#Constant_expressions): "Untyped
    boolean, numeric, and string constants may be used as operands wherever
    it is legal to use an operand of boolean, numeric, or string type,
    respectively."

    Fixes golang/go#11566.

    Reviewed-on: https://go-review.googlesource.com/12716

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227758 138bc75d-0d04-0410-961f-82ee72b054a4

[SPARC] Simplify const_all_ones_operand

gen_rtx_CONST_VECTOR ensures that there is a single instance of:

       (const_vector:M [(const_int -1) ... (const_int -1)])

for each M, so pointer equality with CONSTM1_RTX is enough.  Also,
HOST_BITS_PER_WIDE_INT == 32 is doubly dead: HOST_WIDE_INT is always
64 bits now, and we always use const_int rather than const_double
or const_wide_int for all-ones values (or any other value that
fits in a signed HOST_WIDE_INT).

gcc/
* config/sparc/predicates.md (const_all_ones_operand): Use
CONSTM1_RTX to simplify definition.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227757 138bc75d-0d04-0410-961f-82ee72b054a4

* ChangeLog: Fix shitespace.
* testsuite/ChangeLog: Ditto.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227756 138bc75d-0d04-0410-961f-82ee72b054a4

* gcc.dg/gomp/dump-new-function-3.c (dg-final): Also scan for $loopfn.
* gcc.dg/gomp/notify-new-function-3.c (dg-final): Ditto.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227755 138bc75d-0d04-0410-961f-82ee72b054a4

/cp
2015-09-14  Paolo Carlini  <paolo.carlini@oracle.com>

PR c++/51911
* parser.c (cp_parser_new_expression): Enforce 5.3.4/2 (as amended
per the spirit of DR 1467).

/testsuite
2015-09-14  Paolo Carlini  <paolo.carlini@oracle.com>

PR c++/51911
* g++.dg/cpp0x/new-auto1.C: New.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227753 138bc75d-0d04-0410-961f-82ee72b054a4

gcc/
PR target/67061
* config/sh/sh-protos.h (sh_find_set_of_reg): Simplfiy for-loop.
Handle call insns.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227750 138bc75d-0d04-0410-961f-82ee72b054a4

2015-09-14  Chung-Lin Tang  <cltang@codesourcery.com>

* lto-wrapper.c (merge_and_complain): Add OPT_fdiagnostics_show_caret,
OPT_fdiagnostics_show_option, OPT_fdiagnostics_show_location_, and
OPT_fshow_column to handled saved option cases.
(append_compiler_options): Do not skip the above added options.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227749 138bc75d-0d04-0410-961f-82ee72b054a4

[AArch64] Handle literal pools for functions > 1 MiB in size.

This patch fixes the issue in PR63304 where we have
functions that are > 1MiB. The idea is to use adrp / ldr or adrp / add
instructions to address the literal pools under the use of a command line
option. I would like to turn this on by default on trunk but keep this
disabled by default for the release branches in order to get some
serious testing for this feature while it bakes on trunk.

As a follow-up I would like to try and see if estimate_num_insns or
something else can give us a heuristic to turn this on for "large" functions.
After all the number of incidences of this are quite low in real life,
so may be we should look to restrict this use as much as possible on the
grounds that this code generation implies an extra integer register for
addressing for every floating point and vector constant and I don't think
that's great in code that already may have high register pressure.

Tested on aarch64-none-elf with no regressions. A previous
version was bootstrapped and regression tested.

Applied to trunk.

regards
Ramana

2015-09-14  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>

     PR target/63304
     * config/aarch64/aarch64.c (aarch64_expand_mov_immediate): Handle
     nopcrelative_literal_loads.
     (aarch64_classify_address): Likewise.
     (aarch64_constant_pool_reload_icode): Define.
     (aarch64_secondary_reload): Handle secondary reloads for
     literal pools.
     (aarch64_override_options): Handle nopcrelative_literal_loads.
     (aarch64_classify_symbol): Handle nopcrelative_literal_loads.
     * config/aarch64/aarch64.md (aarch64_reload_movcp<GPF_TF:mode><P:mode>):
     Define.
     (aarch64_reload_movcp<VALL:mode><P:mode>): Likewise.
     * config/aarch64/aarch64.opt (mpc-relative-literal-loads): New option.
     * config/aarch64/predicates.md (aarch64_constant_pool_symref): New
     predicate.
     * doc/invoke.texi (mpc-relative-literal-loads): Document.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227748 138bc75d-0d04-0410-961f-82ee72b054a4

PR middle-end/67401
* optabs.c (expand_atomic_compare_and_swap): Move result of emitting
sync_compare_and_swap_optab libcall to target_oval.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227746 138bc75d-0d04-0410-961f-82ee72b054a4

* c-opts.c (c_common_post_options): Set C++ standard earlier, before
setting various warnings.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227744 138bc75d-0d04-0410-961f-82ee72b054a4

* c-common.c (warn_for_sign_compare): Cast to unsigned when shifting
a negative value.

* c-typeck.c (set_nonincremental_init_from_string): Use
HOST_WIDE_INT_M1U when shifting a negative value.

* rtlanal.c (split_double): Cast to unsigned when shifting a negative
value.
* sched-int.h (UNKNOWN_DEP_COST): Likewise.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227743 138bc75d-0d04-0410-961f-82ee72b054a4

PR28901 -Wunused-variable ignores unused const initialised variables in C

12 years ago it was decided that -Wunused-variable shouldn't warn about
static const variables because some code used const static char rcsid[]
strings which were never used but wanted in the code anyway. But as the
bug points out this hides some real bugs. These days the usage of rcsids
is not very popular anymore. So this patch changes the default to warn
about unused static const variables in C with -Wunused-variable. And it
adds a new option -Wno-unused-const-variable to turn this warning off.
For C++ this new warning is off by default, since const variables can be
used as #defines in C++. New testcases for the new defaults in C and C++
are included testing the new warning and suppressing it with an unused
attribute or using -Wno-unused-const-variable.

gcc/ChangeLog

       PR c/28901
       * toplev.c (check_global_declaration): Check and use
       warn_unused_const_variable.
       * doc/invoke.texi (Warning Options): Add -Wunused-const-variable.
       (-Wunused-variable): Remove non-constant. For C implies
       -Wunused-const-variable.
       (-Wunused-const-variable): New.

gcc/c-family/ChangeLog

       PR c/28901
       * c.opt (Wunused-variable): Option from common.opt.
       (Wunused-const-variable): New option.

gcc/cp/ChangeLog

       PR c/28901
       * cp-objcp-common.c (cxx_warn_unused_global_decl): Remove hard-coded
       VAR_P TREE_READONLY override.

gcc/testsuite/ChangeLog

       PR c/28901
       * g++.dg/warn/unused-variable-1.C: New test.
       * g++.dg/warn/unused-variable-2.C: Likewise.
       * gcc.dg/unused-4.c: Adjust warning for static const.
       * gcc.dg/unused-variable-1.c: New test.
       * gcc.dg/unused-variable-2.c: Likewise.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227742 138bc75d-0d04-0410-961f-82ee72b054a4

2015-09-14  Richard Biener  <rguenther@suse.de>

* doc/match-and-simplify.texi: Update for changed syntax
of inner ifs and the new switch expression.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227741 138bc75d-0d04-0410-961f-82ee72b054a4

* config/i386/haswell.md: New file describing Haswell pipeline.
* config/i386/i386.c (processor_alias_table): Use CPU_HASWELL for
haswell-like processors.
(ix86_reassociation_width): Increase reassociation width for 64-bit
Haswell processor family.
* config/i386/i386.md: Introduce haswell cpu and include new md file.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227740 138bc75d-0d04-0410-961f-82ee72b054a4

2015-09-14  Richard Biener  <rguenther@suse.de>

* doc/match-and-simplify.texi: Fixup some formatting issues
and document the 's' flag.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227739 138bc75d-0d04-0410-961f-82ee72b054a4

Update my email address.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227738 138bc75d-0d04-0410-961f-82ee72b054a4

* gcc-interface/misc.c (gnat_post_options): Issue a warning if
generating STABS debugging information when not the default.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227737 138bc75d-0d04-0410-961f-82ee72b054a4

* gcc-interface/gigi.h (ref_filename): Delete.
(Sloc_to_locus): Add clean_column parameter defaulting to false.
(build_call_raise): Adjust comment.
(build_call_raise_range): Move around.
* gcc-interface/trans.c (ref_filename): Delete.
(gigi): Fix formatting.
(block_end_locus_sink): Delete.
(Sloc_to_locus1): Tidy up and reformat.  Rename into...
(Sloc_to_locus): ...this.  Add default for clean_colmun parameter.
(set_expr_location_from_node1): Rename into...
(set_expr_location_from_node): ...this.
(set_end_locus_from_node): Move around.  Adjust for renaming.
(Handled_Sequence_Of_Statements_to_gnu): Likewise.
(add_cleanup): Likewise.
* gcc-interface/utils2.c (expand_sloc): New static function.
(build_call_raise): Call it.
(build_call_raise_column): Likewise.
(build_call_raise_range): Likewise.  Move around.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227736 138bc75d-0d04-0410-961f-82ee72b054a4

* gcc-interface/utils2.c (gnat_rewrite_reference) <COMPOUND_EXPR>: Add
another acceptable pattern for the RHS.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227735 138bc75d-0d04-0410-961f-82ee72b054a4

Daily bump.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227733 138bc75d-0d04-0410-961f-82ee72b054a4

    * gfortran.dg/private_type_3.f90: Require visibility.
        * gfortran.dg/module_variable_2.f90: Same.
        * gfortran.dg/nested_forall_1.f: Same.
        * gfortran.dg/elemental_dependency_4.f90: Same.
        * gfortran.dg/bind_c_usage_25.f90: Same.
        * gfortran.dg/access_spec_1.f90: Same.
        * gfortran.dg/public_private_module_2.f90: Same.
        * gfortran.dg/host_assoc_variable_1.f90: Same.
        * gfortran.dg/public_private_module_6.f90: Same.
        * gfortran.dg/module_variable_1.f90: Same.
        * gfortran.dg/pr37286.f90: Same.
        * gfortran.dg/internal_pack_7.f90: Same.
        * gfortran.dg/submodule_10.f08: Same.
        * gfortran.dg/allocatable_function_8.f90: Same.
        * gfortran.dg/merge_init_expr_2.f90: Same.
        * gfortran.dg/class_37.f03: Same.
        * gfortran.dg/vect/fast-math-vect-8.f90: Same.
        * gfortran.dg/typebound_call_20.f03: Same.
        * gfortran.dg/proc_ptr_result_3.f90: Same.
        * gfortran.dg/pr32535.f90: Same.
        * gfortran.dg/typebound_proc_19.f90: Same.
        * gfortran.dg/initialization_10.f90: Same.
        * gfortran.dg/bind_c_usage_8.f03: Same.
        * gfortran.dg/pr61335.f90: Same.
        * gfortran.dg/elemental_dependency_5.f90: Same.
        * gfortran.dg/proc_ptr_3.f90: Same.
        * gfortran.dg/debug/pr46756.f: XFAIL on AIX.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227730 138bc75d-0d04-0410-961f-82ee72b054a4

* gcc.dg/torture/type-generic-1.c: Pass -DUNSAFE for Visium.
* gcc.dg/Wno-frame-address.c: Skip for Visium.
* gcc.dg/loop-8.c: Likewise.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227729 138bc75d-0d04-0410-961f-82ee72b054a4

* config.gcc (visium-*-*): Enable --with-cpu option, accept gr5 and
gr6 as possible values, defaulting to gr5.  Set target_cpu_default2.
* config/visium/visium.h (OPTION_DEFAULT_SPECS): Define.
(TARGET_CPU_gr5): Likewise.
(TARGET_CPU_gr6): Likewise.
(MULTILIB_DEFAULTS): Likewise.
* config/visium/t-visium (MULTILIB_OPTIONS): Request distinct variants
for mcpu=gr5 and mcpu=gr6.
(MULTILIB_DIRNAMES): Adjust accordingly.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227728 138bc75d-0d04-0410-961f-82ee72b054a4

tree-ssa-loop-im.c: remove typedefs that hide pointerness

gcc/ChangeLog:

2015-09-13  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

* tree-ssa-loop-im.c (mem_ref_loc_p): Remove typedef.
(mem_ref_p): Likewise.
(outermost_indep_loop): Adjust.
(mem_ref_in_stmt): Likewise.
(determine_max_movement): Likewise.
(mem_ref_alloc): Likewise.
(record_mem_ref_loc): Likewise.
(set_ref_stored_in_loop): Likewise.
(mark_ref_stored): Likewise.
(gather_mem_refs_stmt): Likewise.
(mem_refs_may_alias_p): Likewise.
(for_all_locs_in_loop): Likewise.
(struct rewrite_mem_ref_loc): Likewise.
(rewrite_mem_refs): Likewise.
(struct first_mem_ref_loc_1): Likewise.
(first_mem_ref_loc): Likewise.
(struct sm_set_flag_if_changed): Likewise.
(execute_sm_if_changed_flag_set): Likewise.
(execute_sm): Likewise.
(hoist_memory_references):
(struct ref_always_accessed): Likewise.
(ref_always_accessed_p): Likewise.
(refs_independent_p): Likewise.
(record_dep_loop): Likewise.
(ref_indep_loop_p_1): Likewise.
(ref_indep_loop_p_2): Likewise.
(ref_indep_loop_p): Likewise.
(can_sm_ref_p): Likewise.
(find_refs_for_sm): Likewise.
(tree_ssa_lim_finalize): Likewise.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227727 138bc75d-0d04-0410-961f-82ee72b054a4

dwarf2out.c: remove typedefs that hide pointerness

gcc/ChangeLog:

2015-09-13  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

* dwarf2out.c (dw_attr_ref): Remove typedef.
(dw_line_info_ref): Likewise.
(pubname_ref): Likewise.
(dw_ranges_ref): Likewise.
(dw_ranges_by_label_ref): Likewise.
(comdat_type_node_ref): Likewise.
 (dw_line_info_table_struct): Rename to dw_line_info_table.
(get_AT): Adjust.
(get_AT_low_pc): Likewise.
(get_AT_hi_pc): Likewise.
(get_AT_string): Likewise.
(get_AT_flag): Likewise.
(get_AT_unsigned): Likewise.
(get_AT_ref): Likewise.
(get_AT_file): Likewise.
(remove_AT): Likewise.
(print_die): Likewise.
(check_die): Likewise.
(die_checksum): Likewise.
(attr_checksum_ordered): Likewise.
(struct checksum_attributes): Likewise.
(collect_checksum_attributes): Likewise.
(die_checksum_ordered): Likewise.
(same_die_p): Likewise.
(is_declaration_die): Likewise.
(clone_die): Likewise.
(clone_as_declaration): Likewise.
(copy_declaration_context): Likewise.
(break_out_comdat_types): Likewise.
(copy_decls_walk): Likewise.
(output_location_lists): Likewise.
(external_ref_hasher::hash): Likewise.
(optimize_external_refs_1): Likewise.
(build_abbrev_table): Likewise.
(size_of_die): Likewise.
(unmark_all_dies): Likewise.
(size_of_pubnames): Likewise.
(output_die_abbrevs): Likewise.
(output_die): Likewise.
(output_pubnames): Likewise.
(add_ranges_num): Likewise.
(add_ranges_by_labels): Likewise.
(add_high_low_attributes): Likewise.
(gen_producer_string): Likewise.
(dwarf2out_set_name): Likewise.
(new_line_info_table): Likewise.
(prune_unused_types_walk_attribs): Likewise.
(prune_unused_types_update_strings): Likewise.
(prune_unused_types): Likewise.
(resolve_addr): Likewise.
(optimize_location_lists_1): Likewise.
(index_location_lists): Likewise.
(dwarf2out_finish): Likewise.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227726 138bc75d-0d04-0410-961f-82ee72b054a4

dwarf2cfi.c: remove typedef that hides pointerness

gcc/ChangeLog:

2015-09-13  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

* dwarf2cfi.c (dw_trace_info_ref): Remove typedef.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227725 138bc75d-0d04-0410-961f-82ee72b054a4

tree-vrp.c: remove typedefs that hide pointerness

gcc/ChangeLog:

2015-09-13  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

* tree-vrp.c (struct assert_locus_d): Rename to assert_locus.
(dump_asserts_for): Adjust.
(register_new_assert_for): Likewise.
(process_assert_insertions): Likewise.
(insert_range_assertions): Likewise.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227724 138bc75d-0d04-0410-961f-82ee72b054a4

tree-ssa-ter.c: remove typedefs that hide pointerness

gcc/ChangeLog:

2015-09-13  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

* tree-ssa-ter.c (temp_expr_table_d): Rename to temp_expr_table
and remove typedef.
(new_temp_expr_table): Adjust.
(free_temp_expr_table): Likewise.
(version_to_be_replaced_p): Likewise.
(make_dependent_on_partition): Likewise.
(add_to_partition_kill_list): Likewise.
(remove_from_partition_kill_list): Likewise.
(add_dependence): Likewise.
(finished_with_expr): Likewise.
(process_replaceable): Likewise.
(kill_expr): Likewise.
(kill_virtual_exprs): Likewise.
(mark_replaceable): Likewise.
(find_replaceable_in_bb): Likewise.
(find_replaceable_exprs): Likewise.
(debug_ter): Likewise.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227723 138bc75d-0d04-0410-961f-82ee72b054a4

bt-load.c: remove typedefs that hide pointerness

gcc/ChangeLog:

2015-09-13  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

* bt-load.c (struct btr_def_group): Rename from btr_def_group_s.
(struct btr_user): Rename from btr_user_s.
(struct btr_def): Rename from btr_def_s.
(find_btr_def_group): Adjust.
(add_btr_def): Likewise.
(new_btr_user): Likewise.
(note_other_use_this_block): Likewise.
(compute_defs_uses_and_gen): Likewise.
(link_btr_uses): Likewise.
(build_btr_def_use_webs): Likewise.
(block_at_edge_of_live_range_p): Likewise.
(btr_def_live_range): Likewise.
(combine_btr_defs): Likewise.
(move_btr_def): Likewise.
(migrate_btr_def): Likewise.
(migrate_btr_defs): Likewise.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227722 138bc75d-0d04-0410-961f-82ee72b054a4

var-tracking.c: remove typedef of shared_hash

gcc/ChangeLog:

2015-09-13  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

* var-tracking.c (shared_hash_def): Rename to shared_hash.
(shared_hash): Remove typedef.
(struct dataflow_set): Adjust.
(shared_hash_unshare): Likewise.
(dataflow_set_merge): Likewise.
(vt_initialize): Likewise.
(vt_finalize): Likewise.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227721 138bc75d-0d04-0410-961f-82ee72b054a4