compiler: Escape analysis.

By Chris Manghane.

Comprises three changes to gofrontend repository:

compiler: Add escape information to export data.

compiler: Stack-allocate non-escaping variables.

This change allows variables initialized through make or new
to be allocated on the stack via a temporary variable if they
do not escape their function. It also improves the analysis to
consider situations where variables escape in the standard
library and go testsuite such as:

*nested composite literals and composite literal arguments
*method receivers always escaping
*escape via statements in closures referring to enclosing variables
*escape via calls with multiple return results

compiler: Basic escape analysis for the go frontend.

This is an implementation of the algorithm described in
"Escape Analysis in Java" by Choi et. al.

It relies on dataflow information to discover variable
references to one another. Handles assignments to closures
and association between closures variables and the variables
of the enclosing scope.

Dataflow analysis does not discover references through range
statements e.g. for _, v := range a will not recognize that
all values of v are references to a.

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

From-SVN: r222188

re PR bootstrap/62077 (--with-build-config=bootstrap-lto fails)

PR bootstrap/62077
* configure.ac (--enable-stage1-checking): Default to
release,misc,gimple,rtlflag,tree,types if --disable-checking
or --enable-checking is not specified and DEV-PHASE is not
experimental.
* configure: Regenerated.

From-SVN: r222187

re PR target/65689 ([AArch64] S constraint fails for inline asm at -O0)

PR target/65689
* genpreds.c (struct constraint_data): Add maybe_allows_reg and
maybe_allows_mem bitfields.
(maybe_allows_none_start, maybe_allows_none_end,
maybe_allows_reg_start, maybe_allows_reg_end, maybe_allows_mem_start,
maybe_allows_mem_end): New variables.
(compute_maybe_allows): New function.
(add_constraint): Use it to initialize maybe_allows_reg and
maybe_allows_mem fields.
(choose_enum_order): Sort the non-is_register/is_const_int/is_memory/
is_address constraints such that those that allow neither mem nor
reg come first, then those that only allow reg but not mem, then
those that only allow mem but not reg, then the rest.
(write_allows_reg_mem_function): New function.
(write_tm_preds_h): Call it.
* stmt.c (parse_output_constraint, parse_input_constraint): Use
the generated insn_extra_constraint_allows_reg_mem function
instead of always setting *allows_reg = true; *allows_mem = true;
for unknown extra constraints.

* gcc.target/aarch64/c-output-template-4.c: New test.

From-SVN: r222186

Properly handle uninitialized common symbol

Uninitialized common symbol behavior in executables is target and linker
dependent.  default_binds_local_p_3 is made public and updated to take an
argument to indicate if the linker can guarantee that an uninitialized
common symbol in the executable will still be defined (through COPY
relocation) in the executable.  If common symbol is local to executable,
default_binds_local_p_3 will treat non-external variable as defined
locally.  default_binds_local_p_2 is changed to treat common symbol as
local for non-PIE binaries.

For i386, common symbol is local only for non-PIE binaries.  For x86-64,
common symbol is local only for non-PIE binaries or linker supports copy
reloc in PIE binaries.  If a target treats common symbol as local only
for non-PIE binaries, it can define TARGET_BINDS_LOCAL_P as
default_binds_local_p_2.

gcc/

PR target/65780
* output.h (default_binds_local_p_3): New.
* varasm.c (default_binds_local_p_3): Make it public.  Take an
argument to indicate if common symbol may be local.  If common
symbol may be local, treat non-external variable as defined
locally.
(default_binds_local_p_2): Pass !flag_pic to default_binds_local_p_3.
(default_binds_local_p_1): Pass false to default_binds_local_p_3.
* config/i386/i386.c (ix86_binds_local_p): New.
(TARGET_BINDS_LOCAL_P): Replace default_binds_local_p_2 with
ix86_binds_local_p.

gcc/testsuite/

PR target/65780
* gcc.dg/pr65780-1.c: New test.
* gcc.dg/pr65780-2.c: Likewise.
* gcc.target/i386/pr32219-9.c: Likewise.
* gcc.target/i386/pr32219-1.c (xxx): Make it initialized common
symbol.
* gcc.target/i386/pr64317.c (c): Initialize.

From-SVN: r222184

re PR debug/65771 (ICE (in loc_list_from_tree, at dwarf2out.c:14964) on arm-linux-gnueabihf)

PR debug/65771
* dwarf2out.c (mem_loc_descriptor): For CONST, fallback to
trying mem_loc_descriptor on XEXP (rtl, 0).

From-SVN: r222181

Fix IPA memory leaks.

* ipa-cp.c (ipcp_driver): Release prev_edge_clone.
* ipa-icf.c (sem_item_optimizer::subdivide_classes_by_sensitive_refs):
Release symbol_compare_collection.
* ipa-reference.c: Add TODO that a vector should be released.

From-SVN: r222180

re PR target/65296 ([avr] fix various issues with specs file generation)

PR target/65296
* config/avr/gen-avr-mmcu-specs.c (*avrlibc_startfile): Adjust
to new AVR-LibC file layout (bug #44574).
(*avrlibc_devicelib): Same.
* config/avr/avr-mcus.def: Adjust comments.
* config/avr/avr.opt (nodevicelib): Adjust help.

From-SVN: r222179

Hide __cpu_indicator_init/__cpu_model from linker

We shouldn't call external function, __cpu_indicator_init, while an object
is being relocated since its .got.plt section hasn't been updated.  It
works for non-PIE since no update on .got.plt section is required.  This
patch creates libgcc.so as a linker script, hides __cpu_indicator_init
and __cpu_model in libgcc.so.1 from linker, forces linker to resolve
__cpu_indicator_init and __cpu_model to their hidden definitions in
libgcc.a while providing backward binary compatibility.

gcc/testsuite/

PR target/65612
* g++.dg/ext/mv18.C: New test.
* g++.dg/ext/mv19.C: Likewise.
* g++.dg/ext/mv20.C: Likewise.
* g++.dg/ext/mv21.C: Likewise.
* g++.dg/ext/mv22.C: Likewise.
* g++.dg/ext/mv23.C: Likewise.

libgcc/

PR target/65612
* config.host (tmake_file): Add t-slibgcc-libgcc for Linux/x86.
* config/i386/cpuinfo.c (__cpu_model): Initialize.
(__cpu_indicator_init@GCC_4.8.0): New.
(__cpu_model@GCC_4.8.0): Likewise.
* config/i386/t-linux (HOST_LIBGCC2_CFLAGS): Add
-DUSE_ELF_SYMVER.

From-SVN: r222178

arm_neon.h (vdup_n_f32): Remove forward declaration.

        * config/aarch64/arm_neon.h (vdup_n_f32): Remove forward declaration.

From-SVN: r222177

re PR c++/64527 (Constructor for empty struct not called in some situations)

Fix PR c++/64527

gcc/
PR c++/64527
* gimplify.c (gimplify_init_constructor): Always emit a
side-effecting constructor.

gcc/testsuite/
PR c++/64527
* g++.dg/init/pr64527.C: New test.

From-SVN: r222176

Add missing PR lines in ChangeLog

From-SVN: r222175

Set PROP_gimple_lva for functions without IFN_VA_ARG

2015-04-17  Tom de Vries  <tom@codesourcery.com>

* gimplify.c (gimplify_function_tree): Tentatively set PROP_gimple_lva
in cfun->curr_properties.
(gimplify_va_arg_expr): Clear PROP_gimple_lva in cfun->curr_properties
if we generate an IFN_VA_ARG.
* tree-inline.c (expand_call_inline): Reset PROP_gimple_lva in dest
function if PROP_gimple_lva is not set in src function.

From-SVN: r222174

Postpone expanding va_arg until pass_stdarg

2015-04-17  Tom de Vries  <tom@codesourcery.com>
    Michael Matz  <matz@suse.de>

* gimple-iterator.c (update_modified_stmts): Remove static.
* gimple-iterator.h (update_modified_stmts): Declare.
* gimplify.c (gimplify_modify_expr): Handle IFN_VA_ARG.
(gimplify_va_arg_internal): New function.
(gimplify_va_arg_expr): Use IFN_VA_ARG.
* gimplify.h (gimplify_va_arg_internal): Declare.
* internal-fn.c (expand_VA_ARG): New unreachable function.
* internal-fn.def (VA_ARG): New DEF_INTERNAL_FN.
* tree-stdarg.c (gimple_call_ifn_va_arg_p, expand_ifn_va_arg_1)
(expand_ifn_va_arg): New function.
(pass_data_stdarg): Add PROP_gimple_lva to properties_provided field.
(pass_stdarg::execute): Call expand_ifn_va_arg.
(pass_data_lower_vaarg): New pass_data.
(pass_lower_vaarg): New gimple_opt_pass.
(pass_lower_vaarg::gate, pass_lower_vaarg::execute)
(make_pass_lower_vaarg): New function.
* cfgexpand.c (pass_data_expand): Add PROP_gimple_lva to
properties_required field.
* passes.def (all_passes): Add pass_lower_vaarg.
* tree-pass.h (PROP_gimple_lva): Add define.
(make_pass_lower_vaarg): Declare.

* gcc.dg/tree-ssa/stdarg-2.c: Change f15 scan-tree-dump for target
x86_64-*-*.

Co-Authored-By: Michael Matz <matz@suse.de>
From-SVN: r222173

Handle internal_fn in operand_equal_p

2015-04-17  Tom de Vries  <tom@codesourcery.com>

* fold-const.c (operand_equal_p): Handle INTERNAL_FNs.
* calls.c (call_expr_flags): Same.

From-SVN: r222172

Factor optimize_va_list_gpr_fpr_size out of pass_stdarg::execute

2015-04-17  Tom de Vries  <tom@codesourcery.com>

* tree-stdarg.c (optimize_va_list_gpr_fpr_size): Factor out of ...
(pass_stdarg::execute): ... here.

From-SVN: r222171

Add gimple_find_sub_bbs

2015-04-17  Tom de Vries  <tom@codesourcery.com>
    Michael Matz  <matz@suse.de>

* tree-cfg.c (make_blocks_1): Factor out of ...
(make_blocks): ... here.
(make_edges_bb): Factor out of ...
(make_edges): ... here.
(gimple_find_sub_bbs): New function.
* tree-cfg.h (gimple_find_sub_bbs): Declare.

Co-Authored-By: Michael Matz <matz@suse.de>
From-SVN: r222170

Disable lang_hooks.gimplify_expr in free_lang_data

2015-04-17  Tom de Vries  <tom@codesourcery.com>

* tree.c (free_lang_data): Disable lang_hooks.gimplify_expr.

From-SVN: r222169

asan.c (set_sanitized_sections): New function.

2015-04-17  Yury Gribov  <y.gribov@samsung.com>

gcc/
* asan.c (set_sanitized_sections): New function.
(section_sanitized_p): Ditto.
(asan_protect_global): Optionally sanitize user-defined
sections.
* asan.h (set_sanitized_sections): Declare new function.
* common.opt (fsanitize-sections): New option.
* doc/invoke.texi (-fsanitize-sections): Document new option.
* opts-global.c (handle_common_deferred_options): Handle new
option.

gcc/testsuite/
* c-c++-common/asan/user-section-1.c: New test.

From-SVN: r222168

re PR debug/65771 (ICE (in loc_list_from_tree, at dwarf2out.c:14964) on arm-linux-gnueabihf)

PR debug/65771
* dwarf2out.c (loc_list_from_tree): Return NULL
for DEBUG_EXPR_DECL.

* gcc.dg/debug/pr65771.c: New test.

From-SVN: r222166

ipa-inline.c (can_inline_edge_p): Allow inlining of functions with same attributes.

* ipa-inline.c (can_inline_edge_p): Allow inlining of functions with
same attributes.

From-SVN: r222165

Daily bump.

From-SVN: r222164

class.c (resolve_address_of_overloaded_function, [...]): Rename tsubst_flags_t parameter flags -> complain.

2015-04-16  Paolo Carlini  <paolo.carlini@oracle.com>

* class.c (resolve_address_of_overloaded_function, instantiate_type):
Rename tsubst_flags_t parameter flags -> complain.

From-SVN: r222159

ira-color.c (setup_left_conflict_sizes_p): Do not process node itself when computing left conflict subnode size.

       * ira-color.c (setup_left_conflict_sizes_p): Do not process
        node itself when computing left conflict subnode size.

From-SVN: r222157

predicates.md (register_mixssei387nonimm_operand): New.

* config/i386/predicates.md (register_mixssei387nonimm_operand): New.
* config/i386/i386.md (*fop_<mode>_1_mixed): Merge with
*fop_<mode>_1_sse using enabled attribute.  Use
register_mixssei387nonimm_operand operand 1 predicate. Change
alternative 3 constraints from "x" to "v".

From-SVN: r222154

Replace __buitlin_alloca with __builtin_alloca

* gcc.target/i386/mpx/alloca-1-lbv.c (mpx_test): Replace
__buitlin_alloca with __builtin_alloca.

From-SVN: r222151

call.c (build_op_delete_call, [...]): Check mark_used return value.

2015-04-16  Paolo Carlini  <paolo.carlini@oracle.com>

* call.c (build_op_delete_call, build_over_call): Check mark_used
return value.
* class.c (resolve_address_of_overloaded_function): Likewise.
* decl.c (cxx_maybe_build_cleanup): Likewise.
* pt.c (gen_elem_of_pack_expansion_instantiation, tsubst_baselink,
tsubst_qualified_id, tsubst_copy, tsubst_copy_and_build): Likewise.
* rtti.c (build_dynamic_cast_1): Likewise.
* semantics.c (process_outer_var_ref): Likewise.
* typeck.c (build_class_member_access_expr,
cp_build_function_call_vec, cp_build_addr_expr_1): Likewise.

From-SVN: r222150

[AArch64 Testsuite] Fix comments in vldN_lane_1.c

        * gcc.target/aarch64/vldN_lane_1.c: Correct dup->lane in comments.

From-SVN: r222148

re PR tree-optimization/65774 (FAIL: gcc.dg/builtin-arith-overflow-1.c (internal compiler error))

2015-04-16  Richard Biener  <rguenther@suse.de>

PR tree-optimization/65774
* tree-ssa-ccp.c (evaluate_stmt): Constrain types we invoke
bit-value tracking on.

From-SVN: r222147

re PR tree-optimization/64277 (Incorrect warning "array subscript is above array bounds")

2015-04-16  Richard Biener  <rguenther@suse.de>

PR tree-optimization/64277
* tree-vrp.c (check_array_ref): Fix anti-range handling,
simplify upper bound handling.
(search_for_addr_array): Simplify.
(check_array_bounds): Handle ADDR_EXPRs here.
(check_all_array_refs): Simplify.

* gcc.dg/Warray-bounds-14.c: New testcase.
* gcc.dg/Warray-bounds-15.c: Likewise.
* c-c++-common/ubsan/bounds-4.c: Disable -Warray-bounds.
* c-c++-common/ubsan/bounds-6.c: Likewise.

From-SVN: r222146

i386.c (print_reg): Rewrite function.

* config/i386/i386.c (print_reg): Rewrite function.

From-SVN: r222145

S/390: Fix ira cost multiplier

* config/s390/s390.h (IRA_HARD_REGNO_ADD_COST_MULTIPLIER):
Invert the condition.

From-SVN: r222144

[PATCH]Enable two UNSIGNED_FLOAT simplifications in simplify_unary_operation_1.

gcc/

2015-04-16  Renlin Li  <renlin.li@arm.com>

* simplify-rtx.c (simplify_unary_operation_1): Fix a typo. Enable two
simplifications for UNSIGNEDED_FLOAT.

gcc/testsuite/

2015-04-16  Renlin Li  <renlin.li@arm.com>

* gcc.target/aarch64/unsigned-float.c: New.
* gcc.target/arm/unsigned-float.c: New.

From-SVN: r222143

rl78-opts.h (enum rl78_mul_types): Add MUL_G14 and MUL_UNINIT.

  * config/rl78/rl78-opts.h (enum rl78_mul_types): Add MUL_G14 and
  MUL_UNINIT.
  (enum rl78_cpu_type): New.
  * config/rl78/rl78-virt.md (attr valloc): Add divhi and divsi.
  (umulhi3_shift_virt): Remove m constraint from operand 1.
  (umulqihi3_virt): Likewise.
  * config/rl78/rl78.c (rl78_option_override): Add code to process
  -mcpu and -mmul options.
  (rl78_alloc_physical_registers): Add code to handle divhi and
  divsi valloc attributes.
  (set_origin): Likewise.
  * config/rl78/rl78.h (RL78_MUL_G14): Define.
  (TARGET_G10, TARGET_G13, TARGET_G14): Define.
  (TARGET_CPU_CPP_BUILTINS): Define __RL78_MUL_xxx__ and
  __RL78_Gxx__.
  (ASM_SPEC): Pass -mcpu on to assembler.
  * config/rl78/rl78.md (mulqi3): Add a clobber of AX.
  (mulqi3_rl78): Likewise.
  (mulhi3_g13): Likewise.
  (mulhi3): Generate the G13 or G14 versions of the insn directly.
  (mulsi3): Likewise.
  (mulhi3_g14): Add clobbers of AX and BC.
  (mulsi3_g14): Likewise.
  (mulsi3_g13): Likewise.
  (udivmodhi4, udivmodhi4_g14, udivmodsi4): New patterns.
  (udivmodsi4_g14, udivmodsi4_g13): New patterns.
  * config/rl78/rl78.opt (mmul): Initialise value to
  RL78_MUL_UNINIT.
  (mcpu): New option.
  (m13, m14, mrl78): New option aliases.
  * config/rl78/t-rl78 (MULTILIB_OPTIONS): Add mg13 and mg14.
  (MULTILIB_DIRNAMES): Add g13 and g14.
  * doc/invoke.texi: Document -mcpu and -mmul options.

  * config/rl78/divmodhi.S: Add G14 and G13 versions of the __divhi3
  and __modhi3 functions.
* config/rl78/divmodso.S: Add G14 and G13 versions of the
  __divsi3, __udivsi3, __modsi3 and __umodsi3 functions.

From-SVN: r222142

tree-ssa-ccp.c (likely_value): See if we have operands that are marked as never simulate again and return...

2015-04-16  Richard Biener  <rguenther@suse.de>

* tree-ssa-ccp.c (likely_value): See if we have operands that
are marked as never simulate again and return CONSTANT in this
case.
* tree-ssa-propagate.c (simulate_stmt): Mark stmts that do
not have any operands that will be simulated again as
not being simulated again.

* gcc.dg/tree-ssa/ssa-ccp-36.c: New testcase.
* gcc.dg/tree-ssa/pr37508.c: Adjust.
* gfortran.dg/reassoc_6.f: Remove XFAIL.

From-SVN: r222141

Daily bump.

From-SVN: r222140

constexpr.c (cxx_eval_store_expression): Ignore clobbers.

* constexpr.c (cxx_eval_store_expression): Ignore clobbers.
(build_constexpr_constructor_member_initializers): Loop to find
the BIND_EXPR.
* decl.c (start_preparsed_function): Clobber the object at the
beginning of a constructor.

From-SVN: r222135

decl.c (grokmethod): Only set DECL_COMDAT if TREE_PUBLIC is set.

* decl.c (grokmethod): Only set DECL_COMDAT if TREE_PUBLIC is set.
* method.c (implicitly_declare_fn): Likewise.
* decl2.c (vague_linkage_p): Check TREE_PUBLIC first.

From-SVN: r222134

* decl2.c (determine_visibility): Use get_template_info.

From-SVN: r222133

re PR c++/65727 (Segfault With Decltype In Lambda Expression Used To Initialize Static Class Member)

PR c++/65727
* lambda.c (lambda_expr_this_capture): In unevaluated context go
through the normal loop, just don't capture.
(maybe_resolve_dummy): Handle null return.

Co-Authored-By: Marek Polacek <polacek@redhat.com>
From-SVN: r222132

i386.md (*cmpi<FPCMP:unord><MODEF:mode>_mixed): Merge with *cmpi<FPCMP:unord><MODEF:mode>_sse using enabled attribute.

* config/i386/i386.md (*cmpi<FPCMP:unord><MODEF:mode>_mixed):
Merge with *cmpi<FPCMP:unord><MODEF:mode>_sse using enabled attribute.
(*extendsfdf2_mixed): Merge with *extendsfdf2_sse using enabled
attribute.
(*truncdfsf_fast_mixed): Merge with *truncdfsf_fast_sse using
enabled attribute.
(*float<SWI48:mode><MODEF:mode>2_mixed): Rename from
*float<SWI48:mode><MODEF:mode>2_sse.
(*absneg<mode>2_mixed): Merge with *absneg<mode>2_sse using
enabled attribute.
(*fop_<mode>_comm_mixed): Merge with *fop_<mode>_comm_sse using
enabled attribute.

From-SVN: r222131

re PR tree-optimization/47679 (Strange uninitialized warning after SRA)

PR tree-optimization/47679
* tree-ssa-dom.c (build_and_record_new_cond): Moved to avoid
need for forward declaration in upcoming changes.
(record_conditions, record_edge_info): Likewise.

From-SVN: r222130

Fix fdump-passes

2015-04-15  Tom de Vries  <tom@codesourcery.com>

PR other/65487
* function.c (push_dummy_function): New function.
(init_dummy_function_start): Use push_dummy_function.
(pop_dummy_function): New function.  Factored out of ...
(expand_dummy_function_end): ... here.
* function.h (push_dummy_function, pop_dummy_function): Declare.
* passes.c (pass_manager::dump_passes): Use push_dummy_function and
pop_dummy_function.
* tree-chkp.c (chkp_gate): Handle cgraph_node::get (cfun->decl) == NULL.

From-SVN: r222129

call.c (enforce_access): Emit error + inform.

/cp
2015-04-15  Paolo Carlini  <paolo.carlini@oracle.com>

* call.c (enforce_access): Emit error + inform.

/testsuite
2015-04-15  Paolo Carlini  <paolo.carlini@oracle.com>

* g++.dg/cpp0x/alias-decl-22.C: Adjust for error + inform change.
* g++.dg/cpp0x/decltype-call1.C: Likewise.
* g++.dg/cpp0x/defaulted21.C: Likewise.
* g++.dg/cpp0x/defaulted28.C: Likewise.
* g++.dg/cpp0x/defaulted47.C: Likewise.
* g++.dg/cpp0x/elision_neg.C: Likewise.
* g++.dg/cpp0x/fntmpdefarg3.C: Likewise.
* g++.dg/cpp0x/implicit-trivial1.C: Likewise.
* g++.dg/cpp0x/implicit1.C: Likewise.
* g++.dg/cpp0x/implicit9.C: Likewise.
* g++.dg/cpp0x/inh-ctor9.C: Likewise.
* g++.dg/cpp0x/range-for13.C: Likewise.
* g++.dg/gomp/clause-2.C: Likewise.
* g++.dg/gomp/udr-5.C: Likewise.
* g++.dg/inherit/access6.C: Likewise.
* g++.dg/lookup/duperr1.C: Likewise.
* g++.dg/lookup/friend2.C: Likewise.
* g++.dg/lookup/pr6936.C: Likewise.
* g++.dg/lookup/scoped1.C: Likewise.
* g++.dg/lookup/using26.C: Likewise.
* g++.dg/lookup/using38.C: Likewise.
* g++.dg/other/access2.C: Likewise.
* g++.dg/overload/defarg3.C: Likewise.
* g++.dg/overload/defarg6.C: Likewise.
* g++.dg/parse/access11.C: Likewise.
* g++.dg/parse/access2.C: Likewise.
* g++.dg/parse/access3.C: Likewise.
* g++.dg/parse/access4.C: Likewise.
* g++.dg/parse/access5.C: Likewise.
* g++.dg/parse/access6.C: Likewise.
* g++.dg/parse/access8.C: Likewise.
* g++.dg/parse/access9.C: Likewise.
* g++.dg/parse/crash40.C: Likewise.
* g++.dg/tc1/dr142.C: Likewise.
* g++.dg/tc1/dr166.C: Likewise.
* g++.dg/tc1/dr52.C: Likewise.
* g++.dg/template/access11.C: Likewise.
* g++.dg/template/access18.C: Likewise.
* g++.dg/template/access19.C: Likewise.
* g++.dg/template/access2.C: Likewise.
* g++.dg/template/access20.C: Likewise.
* g++.dg/template/access26.C: Likewise.
* g++.dg/template/access3.C: Likewise.
* g++.dg/template/access7.C: Likewise.
* g++.dg/template/conv12.C: Likewise.
* g++.dg/template/crash69.C: Likewise.
* g++.dg/template/friend31.C: Likewise.
* g++.dg/template/friend32.C: Likewise.
* g++.dg/template/memfriend15.C: Likewise.
* g++.dg/template/memfriend16.C: Likewise.
* g++.dg/template/memfriend17.C: Likewise.
* g++.dg/template/memfriend7.C: Likewise.
* g++.dg/template/pr32519.C: Likewise.
* g++.dg/template/qualttp21.C: Likewise.
* g++.dg/template/qualttp8.C: Likewise.
* g++.dg/template/ttp10.C: Likewise.
* g++.dg/template/typedef11.C: Likewise.
* g++.dg/template/typedef13.C: Likewise.
* g++.dg/template/typedef19.C: Likewise.
* g++.dg/template/typedef20.C: Likewise.
* g++.dg/template/typedef22.C: Likewise.
* g++.dg/template/using16.C: Likewise.
* g++.dg/template/virtual3.C: Likewise.
* g++.dg/ubsan/pr61272.C: Likewise.
* g++.old-deja/g++.bob/inherit2.C: Likewise.
* g++.old-deja/g++.brendan/crash11.C: Likewise.
* g++.old-deja/g++.brendan/enum6.C: Likewise.
* g++.old-deja/g++.brendan/visibility1.C: Likewise.
* g++.old-deja/g++.brendan/visibility10.C: Likewise.
* g++.old-deja/g++.brendan/visibility2.C: Likewise.
* g++.old-deja/g++.brendan/visibility6.C: Likewise.
* g++.old-deja/g++.brendan/visibility7.C: Likewise.
* g++.old-deja/g++.brendan/visibility8.C: Likewise.
* g++.old-deja/g++.brendan/visibility9.C: Likewise.
* g++.old-deja/g++.bugs/900428_03.C: Likewise.
* g++.old-deja/g++.jason/access17.C: Likewise.
* g++.old-deja/g++.jason/access18.C: Likewise.
* g++.old-deja/g++.jason/access22.C: Likewise.
* g++.old-deja/g++.jason/access23.C: Likewise.
* g++.old-deja/g++.jason/access8.C: Likewise.
* g++.old-deja/g++.jason/delete3.C: Likewise.
* g++.old-deja/g++.jason/report.C: Likewise.
* g++.old-deja/g++.law/access2.C: Likewise.
* g++.old-deja/g++.law/access3.C: Likewise.
* g++.old-deja/g++.law/access4.C: Likewise.
* g++.old-deja/g++.law/access5.C: Likewise.
* g++.old-deja/g++.law/arm12.C: Likewise.
* g++.old-deja/g++.law/arm14.C: Likewise.
* g++.old-deja/g++.law/ctors13.C: Likewise.
* g++.old-deja/g++.law/union2.C: Likewise.
* g++.old-deja/g++.law/visibility12.C: Likewise.
* g++.old-deja/g++.law/visibility15.C: Likewise.
* g++.old-deja/g++.law/visibility16.C: Likewise.
* g++.old-deja/g++.law/visibility17.C: Likewise.
* g++.old-deja/g++.law/visibility18.C: Likewise.
* g++.old-deja/g++.law/visibility19.C: Likewise.
* g++.old-deja/g++.law/visibility20.C: Likewise.
* g++.old-deja/g++.law/visibility21.C: Likewise.
* g++.old-deja/g++.law/visibility24.C: Likewise.
* g++.old-deja/g++.law/visibility4.C: Likewise.
* g++.old-deja/g++.law/visibility5.C: Likewise.
* g++.old-deja/g++.law/visibility6.C: Likewise.
* g++.old-deja/g++.law/visibility7.C: Likewise.
* g++.old-deja/g++.law/visibility8.C: Likewise.
* g++.old-deja/g++.law/visibility9.C: Likewise.
* g++.old-deja/g++.niklas/t135.C: Likewise.
* g++.old-deja/g++.oliva/delete1.C: Likewise.
* g++.old-deja/g++.oliva/partord1.C: Likewise.
* g++.old-deja/g++.other/access11.C: Likewise.
* g++.old-deja/g++.other/access4.C: Likewise.
* g++.old-deja/g++.other/access7.C: Likewise.
* g++.old-deja/g++.other/crash1.C: Likewise.
* g++.old-deja/g++.other/crash7.C: Likewise.
* g++.old-deja/g++.other/friend1.C: Likewise.
* g++.old-deja/g++.other/friend4.C: Likewise.
* g++.old-deja/g++.other/friend9.C: Likewise.
* g++.old-deja/g++.other/lineno1.C: Likewise.
* g++.old-deja/g++.other/using1.C: Likewise.
* g++.old-deja/g++.pt/enum14.C: Likewise.
* g++.old-deja/g++.pt/friend11.C: Likewise.
* g++.old-deja/g++.pt/friend21.C: Likewise.
* g++.old-deja/g++.pt/friend3.C: Likewise.
* g++.old-deja/g++.pt/inherit2.C: Likewise.
* g++.old-deja/g++.pt/memtemp74.C: Likewise.
* g++.old-deja/g++.pt/memtemp89.C: Likewise.
* g++.old-deja/g++.robertl/eb94.C: Likewise.

From-SVN: r222128

gthr-single.h (__GTHREAD_MUTEX_INIT_FUNCTION): Use empty do-while loop as macro body to avoid warnings.

2015-04-15  Chen Gang  <gang.chen.5i5j@gmail.com>

       * gthr-single.h (__GTHREAD_MUTEX_INIT_FUNCTION): Use empty
       do-while loop as macro body to avoid warnings.

From-SVN: r222127

constexpr.c (use_new_call): Remove #define.

* constexpr.c (use_new_call): Remove #define.
(lookup_parameter_binding): Remove function.
(cxx_bind_parameters_in_call): Remove unused code.
(cxx_eval_call_expression): Likewise.
(cxx_eval_constant_expression): Likewise.

From-SVN: r222126

re PR rtl-optimization/42522 ((zero_extract:SI (mem:QI) ...) misoptimized)

        PR rtl-optimization/42522
        * cse.c (fold_rtx): Try to simplify a ZERO_EXTRACT or
        SIGN_EXTRACT as a whole object rather than simplifying
        its operand.

From-SVN: r222125

re PR ipa/65765 (Compiling Firefox with GCC 5 leads to broken javascript engine on x86-64)

PR ipa/65765
* ipa-icf-gimple.c (func_checker::compare_bb): For GIMPLE_NOP
and GIMPLE_PREDICT use break instead of return true. For
GIMPLE_EH_DISPATCH, compare dispatch region.

* g++.dg/ipa/pr65765.C: New test.

From-SVN: r222123

re PR bootstrap/65763 (tm.h: No such file or directory)

PR bootstrap/65763
* Makefile.am (gcc_build_dir): Remove $(host_subdir)/ part.
* Makefile.in: Regenerated.

From-SVN: r222121

extend.texi (__sync Builtins): Simplify some text.

* doc/extend.texi (__sync Builtins): Simplify some text.  Update
details about the implementation.  Make clear preference for
__atomic builtins.  Reduce possibility of future change.

From-SVN: r222120

Ignore elfdump warnings in scripts/extract_symvers.pl

* scripts/extract_symvers.pl: Ignore elfdump error output.

From-SVN: r222117

rx.opt (mallow-string-insns): New option.

* config/rx/rx.opt (mallow-string-insns): New option.
* config/rx/rx.c (RX_BUILTIN_RMPA): Disable the use of this
builtin if string instructions are denied.
* config/rx/rx.h (TARGET_CPU_CPP_BUILTINS): Define
__RX_ALLOW_STRING_INSNS__ or __RX_DISALLOW_STRING_INSNS__, as
appropriate.
(ASM_SPEC): Pass -mno-allow-string-insns on to the assembler.
* config/rx/rx.md (movstr): Enable pattern only if string
instructions are allowed.
(rx_movstr, rx_strend, movmemsi, rx_movmem): Likewise.
(cmpstrnsi, cmpstrsi, rx_cmpstrn, rmpa): Likewise.
* config/rx/t-rx (MULTILIB_OPTIONS): Add mno-allow-string-insns.
(MULTILIB_DIRNAMES): Add no-strings.
* doc/invoke.texi: Document -mno-allow-string-insns.

* gcc.target/rx/builtins.c: Disable RMPA test if string
instructions are not allowed.

From-SVN: r222116

re PR target/65408 (powerpc64 function argument passing may access invalid memory)

PR target/65408
PR target/58744
PR middle-end/36043
* calls.c (load_register_parameters): Don't load past end of
mem unless suitably aligned.

From-SVN: r222115

rl78.c (rl78_expand_prologue): Mark large stack decrement instruction as being frame related.

* config/rl78/rl78.c (rl78_expand_prologue): Mark large stack
decrement instruction as being frame related.
(rl78_print_operand_1): Handle 'p' modifier to add +0 to HL
based addresses.
If zero extending a function address enclose the operation in
%code(...).
(rl78_preferred_reload_class): New function.
(TARGET_PREFERRED_RELOAD_CLASS): Define.
* config/rl78/rl78.md: Remove useless constraints in expanders.
(mulqi3_rl78): Remove + qualifier on input-only operand 1.
(mulhi3_rl78): Likewise.
(mulhi3_g13): Likewise.
(mulsi3_rl78): Likewise.
(es_addr): Move to before the multiply patterns.

From-SVN: r222114

function.h (struct emit_status): Delete x_first_insn, x_last_insn and sequence_stack.

* function.h (struct emit_status): Delete x_first_insn, x_last_insn
and sequence_stack.  Add seq.
(seq_stack): Delete.
* function.c (prepare_function_start): Don't access x_last_insn.
* emit-rtl.h (get_current_sequence, get_topmost_sequence): New.
(get_insns, set_first_insn, get_last_insn, set_last_insn): Use them.
* emit_rtl.c (start_sequence, push_topmost_sequence,
pop_topmost_sequence, end_sequence, in_sequence_p, init_emit): Use
sequence accessors.
(get_last_insn_anywhere, add_insn_after_nobb, add_insn_before_nobb,
remove_insn): Likewise.  Simplify.
* config/m32c/m32c.c (m32c_leaf_function_p): Use push_topmost_sequence
and pop_topmost_sequence.
(m32c_function_needs_enter): Use get_topmost_sequence.  Ignore
debug insns.
* config/rs6000/rs6000.c (rs6000_call_aix): Use get_current_sequence.

From-SVN: r222112

re PR fortran/65089 (FAIL: gfortran.dg/io_real_boz(2|_[45]).f90 when tested with -fsanitize=address)

2015-04-14 Jerry DeLisle  <jvdelisle@gcc.gnu.org>

PR libgfortran/65089
* io/format.h (free_format): New function to free memory
allocated for building format error messages.
* io/format.c (format_error): Add checks before freeing memory
to avoid potential segfaults and free formatting data when
needed on error conditions. Always allocate and NULL terminate
the string.
* io/transfer.c (st_read_done, st_write_done): Use new
free_format function to clean up memory allocations when done.

From-SVN: r222111

tree.c (replace_placeholders_t): Remove unused type.

* tree.c (replace_placeholders_t): Remove unused type.
(replace_placeholders): Remove unused pset.

From-SVN: r222110

Daily bump.

From-SVN: r222109

* pt.c (lookup_template_class_1): Use coerce_innermost_template_parms.

From-SVN: r222104

re PR target/65729 (ICE (in prohibited_class_reg_set_mode_p, at lra-constraints.c) on arm-linux-gnueabihf)

gcc/
2015-04-14  Yvan Roux  <yvan.roux@linaro.org>

PR target/65729
* lra-constraints.c (prohibited_class_reg_set_mode_p): Restore and fix
the assertiion.

gcc/testsuite/
2015-04-14  Yvan Roux  <yvan.roux@linaro.org>

PR target/65729
* gcc.target/arm/pr65729.c: New test.

From-SVN: r222101

i386.h (LEGACY_INT_REG_P): New define.

* config/i386/i386.h (LEGACY_INT_REG_P): New define.
(LEGACY_INT_REGNO_P): Ditto.
(GENERAL_REGNO_P): Use LEGACY_INT_REGNO_P.
(ANY_MASK_REG_P): Remove.
(BND_REG_P): Rename from ANY_BND_REG_P.
* config/i386/i386.c (print_reg): Use LEGACY_INT_REG_P to print
legacy integer registers.  Do not handle MMX_REG_P in a special way.
Merge 64byte and 32byte SSE handling.

From-SVN: r222100

Makefile.tpl (EXTRA_HOST_EXPORTS): New variables.

2015-04-14  Max Ostapenko  <m.ostapenko@partner.samsung.com>

* Makefile.tpl (EXTRA_HOST_EXPORTS): New variables.
(EXTRA_BOOTSTRAP_FLAGS): Likewise.
(check-[+module+]): Add EXTRA_HOST_EXPORTS and EXTRA_BOOTSTRAP_FLAGS.
* Makefile.in: Regenerate.

libiberty/
* testsuite/Makefile.in (LIBCFLAGS): Add LDFLAGS.

From-SVN: r222099

expr.c (expand_assignment): Force an address offset computation into a register before changing its mode.

* expr.c (expand_assignment): Force an address offset computation
into a register before changing its mode.
(expand_expr_real_1): Likewise.

From-SVN: r222098

re PR c++/65695 (NSDMI calling constexpr constructor with pointer-to-member is not a constant expression)

PR c++/65695
* cvt.c (cp_fold_convert): Avoid wrapping PTRMEM_CST in NOP_EXPR.

From-SVN: r222097

re PR c++/65721 (Internal compiler error segmentation fault)

PR c++/65721
* name-lookup.c (do_class_using_decl): Complain about specifying
the current class even if there are dependent bases.

From-SVN: r222096

re PR c++/59766 (c++1y: declaring friend function with 'auto' return type deduction is rejected with bogus reason)

PR c++/59766
* decl.c (grokdeclarator): Do not flag friends with deduced return.

From-SVN: r222095

re PR c++/60994 (gcc does not recognize hidden/shadowed enumeration as valid nested-name-specifier)

PR c++/60994
* parser.c (cp_parser_class_name): Add enum_ok parameter.
(cp_parser_qualifying_entity): Use it instead of cp_parser_type_name.
(cp_parser_diagnose_invalid_type_name): Don't assume a template is
a class template.

Co-Authored-By: Jason Merrill <jason@redhat.com>
From-SVN: r222094

Add the missing file

From-SVN: r222093

[AArch64 Intrinsics] Replace temporary assembler for vst1_lane

* config/aarch64/arm_neon.h (vst1_lane_f32, vst1_lane_f64,
vst1_lane_p8, vst1_lane_p16, vst1_lane_s8, vst1_lane_s16,
vst1_lane_s32, vst1_lane_s64, vst1_lane_u8, vst1_lane_u16,
vst1_lane_u32, vst1_lane_u64, vst1q_lane_f32, vst1q_lane_f64,
vst1q_lane_p8, vst1q_lane_p16, vst1q_lane_s8, vst1q_lane_s16,
vst1q_lane_s32, vst1q_lane_s64, vst1q_lane_u8, vst1q_lane_u16,
vst1q_lane_u32, vst1q_lane_u64): Reimplement with pointer dereference
and __aarch64_vget_lane_any.

From-SVN: r222092

re PR rtl-optimization/65761 (internal compiler error: in patch_jump_insn, at cfgrtl.c:1296)

PR rtl-optimization/65761
* cfgrtl.c (rtl_split_edge): For EDGE_CROSSING split, use
get_last_bb_insn (after) instead of NEXT_INSN (BB_END (after)).

From-SVN: r222090

Add bootstrap-mpx.mk

* bootstrap-mpx.mk: New file.

From-SVN: r222088

graphite-scop-detection.c: Do not include cp/cp-tree.h.

2015-04-14  Richard Biener  <rguenther@suse.de>

* graphite-scop-detection.c: Do not include cp/cp-tree.h.
(graphite_can_represent_scev): Use POINTER_TYPE_P.

From-SVN: r222087

re PR middle-end/65758 (191.fma3d in SPEC CPU 200 failed to build)

2015-04-14  Richard Biener  <rguenther@suse.de>

PR tree-optimization/65758
* tree-ssa-ccp.c (get_value_from_alignment): Adjust mask test
against -1.
(ccp_lattice_meet): Likewise.
(bit_value_unop): Likewise.
(bit_value_binop): Likewise.
(bit_value_assume_aligned): Likewise.

* gfortran.fortran-torture/compile/pr65758.f90: New testcase.

From-SVN: r222085

15-04-14  Christian Bruel  <christian.bruel@st.com>

* execute_dwarf2_frame (dw_frame_pointer_regnum): Reinitialize for each
function.

From-SVN: r222084

Add missing testcase.

2015-04-14  Yvan Roux  <yvan.roux@linaro.org>

PR target/65648
* gcc.c-torture/execute/pr65648.c: New test.

From-SVN: r222083

re PR libstdc++/61347 (std::distance(list.first(),list.end()) in O(1))

2015-04-14  Marc Glisse  <marc.glisse@inria.fr>

PR libstdc++/61347
* include/bits/stl_iterator_base_funcs.h (_List_iterator,
_List_const_iterator): Declare.
(__distance): Declare new overloads for _List_iterator and
_List_const_iterator.
* include/bits/stl_list.h (__distance): New overloads for
_List_iterator and _List_const_iterator.
* testsuite/23_containers/list/61347.cc: New testcase.

From-SVN: r222082

evolution.xml: Fix typos.

* doc/xml/manual/evolution.xml: Fix typos.
* doc/html/manual/api.html: Regenerate.

From-SVN: r222081

Avoid finite in gcc.target/i386/avx512dq-vfpclasspd-2.c etc.

* gcc.target/i386/avx512dq-vfpclasspd-2.c (check_fp_class_dp): Use
__builtin_finite instead of finite.
* gcc.target/i386/avx512dq-vfpclassps-2.c (check_fp_class_sp):
Likewise.

From-SVN: r222079

re PR other/63387 (Optimize pairs of isnan() calls into a single isunordered())

2015-04-14  Marc Glisse  <marc.glisse@inria.fr>

PR tree-optimization/63387
gcc/
* match.pd ((x unord x) | (y unord y) -> (x unord y),
(x unord x) | (x unord y) -> (x unord y)): New simplifications.
gcc/testsuite/
* gcc.dg/pr63387.c: New testcase.

From-SVN: r222077

predicates.md (any_QIreg_operand): Rename from q_regs_operand.

* config/i386/predicates.md (any_QIreg_operand): Rename from
q_regs_operand.  Do not process subregs.
(QIreg_operand): Use QI_REGNO_P predicate.
(ext_QIreg_operand): Ditto.
(ext_register_operand): Ditto.
* config/i386/i386.md (TEST splitters): Use QIreg_operand predicate.
(AND splitters): Ditto.
(AND with -65536 splitter): Add SWI48 mode for operand 0.
(AND with -256 splitter): Use any_QIreg_operand predicate and
SWI248 mode for operand 0.
(AND with -65281 splitter): Use QIreg_operand predicate and SWI248
mode for operand 0.
(SETCC + MOVZBL peepholes): Update for renamed any_QIreg_operand.

From-SVN: r222076

Fix regression for libstdc++-v3/testsuite/29_atomics/atomic/62259.cc as...

Fix regression for libstdc++-v3/testsuite/29_atomics/atomic/62259.cc
as reported at <http://gcc.gnu.org/ml/gcc-patches/2015-04/msg00543.html>.

* testsuite/29_atomics/atomic/62259.cc: Assert atomic
alignment is larger-equal, not equal, to default alignment.

From-SVN: r222072

Daily bump.

From-SVN: r222070

* doc/plugins.texi: Rewrite first introductory paragraph.

From-SVN: r222065

gcc.pot: Regenerate.

gcc/po:
* gcc.pot: Regenerate.

libcpp/po:
* cpplib.pot: Regenerate.

From-SVN: r222061

re PR libstdc++/65754 (missing exports for fstream constructors)

PR libstdc++/65754
* config/abi/pre/gnu.ver: Export base object constructors for
fstreams.
* config/abi/post/aarch64-linux-gnu/baseline_symbols.txt: Update.
* config/abi/post/alpha-linux-gnu/baseline_symbols.txt: Update.
* config/abi/post/ia64-linux-gnu/baseline_symbols.txt: Update.
* config/abi/post/i386-linux-gnu/baseline_symbols.txt: Update.
* config/abi/post/i486-linux-gnu/baseline_symbols.txt: Update.
* config/abi/post/m68k-linux-gnu/baseline_symbols.txt: Update.
* config/abi/post/powerpc-linux-gnu/baseline_symbols.txt: Update
* config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt: Update.
* config/abi/post/powerpc64-linux-gnu/32/baseline_symbols.txt: Update.
* config/abi/post/s390x-linux-gnu/baseline_symbols.txt: Update.
* config/abi/post/s390-linux-gnu/baseline_symbols.txt: Update.
* config/abi/post/solaris2.10/baseline_symbols.txt: Regenerate.
* config/abi/post/solaris2.10/amd64/baseline_symbols.txt: Likewise.
* config/abi/post/solaris2.10/sparcv9/baseline_symbols.txt: Likewise.
* config/abi/post/x86_64-linux-gnu/baseline_symbols.txt: Update.
* config/abi/post/x86_64-linux-gnu/32/baseline_symbols.txt: Update.
* config/abi/post/x86_64-linux-gnu/x32/baseline_symbols.txt: Update.
* testsuite/27_io/basic_fstream/cons/base.cc: New.

From-SVN: r222059

evolution.xml: Document changes since 4.5 release.

* doc/xml/manual/evolution.xml: Document changes since 4.5 release.
* doc/html/*: Regenerate.

From-SVN: r222055

nonzero-3.C: New testcase.

* g++.dg/tree-ssa/nonzero-3.C: New testcase.
* tree-vrp.c (nonnull_arg_p): THIS pointers and references are non-zero.
(gimple_stmt_nonzero_warnv_p): Reference return values are non-zero.

From-SVN: r222054

ipa-profie.c (ipa_profile): Check number of parameters and possible polymorphic call targets before...

* ipa-profie.c (ipa_profile): Check number of parameters
and possible polymorphic call targets before
devirtualizing.

From-SVN: r222053

i386.md (*bmi2_umul<mode><dwi>3_1): Merge from *bmi2_umulsidi3_1 and *bmi2_umulditi3_1 using DWIH mode iterator.

* config/i386/i386.md (*bmi2_umul<mode><dwi>3_1): Merge from
*bmi2_umulsidi3_1 and *bmi2_umulditi3_1 using DWIH mode iterator.

From-SVN: r222052

re PR tree-optimization/65204 (Aligned address optimization not detected)

2015-04-13  Richard Biener  <rguenther@suse.de>

PR tree-optimization/65204
* tree-ssa-ccp.c (evaluate_stmt): Always evaluate address
takens for bit-CCP.

* gcc.dg/tree-ssa/ssa-ccp-35.c: New testcase.

From-SVN: r222049

update_version_svn: Update DATESTAMP also on branches/gcc-[0-9]+-branch.

* update_version_svn: Update DATESTAMP also on
branches/gcc-[0-9]+-branch.

From-SVN: r222044

re PR sanitizer/64839 (libsanitizer shouldn't require <rpc/xdr.h>)

2015-04-13  Yury Gribov  <y.gribov@samsung.com>

PR sanitizer/64839

libsanitizer/
* sanitizer_common/sanitizer_platform.h: Cherry pick
upstream r234470.
* sanitizer_common/sanitizer_platform_limits_posix.cc: Ditto.
* configure.ac (RPC_DEFS): Check for precense of RPC headers.
* sanitizer_common/Makefile.am (DEFS): Pass info to compiler.
* Makefile.in: Regenerate.
* asan/Makefile.in: Regenerate.
* config.h.in: Regenerate.
* configure: Regenerate.
* interception/Makefile.in: Regenerate.
* libbacktrace/Makefile.in: Regenerate.
* lsan/Makefile.in: Regenerate.
* sanitizer_common/Makefile.in: Regenerate.
* tsan/Makefile.in: Regenerate.
* ubsan/Makefile.in: Regenerate.

From-SVN: r222043

gcc_release: Fix up thinko in the last commit, improve error message.

* gcc_release: Fix up thinko in the last commit, improve error
message.  Commit all ChangeLog, DEV-PHASE and BASE-VER changes
together, rather than doing dozens of separate commits.

From-SVN: r222042

* gnatvsn.ads (Library_Version): Bump to 6.

From-SVN: r222041

re PR target/65660 (252.eon regression on bdver2 with -Ofast)

2015-04-13  Richard Biener  <rguenther@suse.de>

PR target/65660
* config/i386/i386.c (bdver1_cost): Double cond_taken_branch_cost
and cond_not_taken_branch_cost to 4 and 2.
(bdver2_cost): Likewise.
(bdver3_cost): Likewise.
(bdver4_cost): Likewise.

From-SVN: r222040

hash-table.h (hash_table constructor): Add mem stats.

* hash-table.h (hash_table constructor): Add mem stats.
(alloc_entries): Likewise.

From-SVN: r222039

ipa-cp.c (ipcp_driver): Relase prev_edge.

* ipa-cp.c (ipcp_driver): Relase prev_edge.
* passes.c (execute_one_pass): Only add transform if pass has one.

From-SVN: r222038

Add missing test case

2015-04-13  Terry Guo  <terry.guo@arm.com>

        PR target/65710
        * gcc.target/arm/pr65710.c: New.

From-SVN: r222037

Daily bump.

From-SVN: r222036

Don't enable -fprefetch-loop-arrays for TARGET_SOFTWARE_PREFETCHING_BENEFICIAL if -Os.

Testing an x86_64 toolchain configured for a processor with
TARGET_SOFTWARE_PREFETCHING_BENEFICIAL produces failures

FAIL: g++.dg/pr60518.C  -std=gnu++98 (test for excess errors)
FAIL: g++.dg/pr60518.C  -std=gnu++11 (test for excess errors)
FAIL: g++.dg/pr60518.C  -std=gnu++14 (test for excess errors)

where the failure is from the message "pr60518.C:1:0: warning:
-fprefetch-loop-arrays is not supported with -Os".

Given that lack of support, it seems appropriate for the back end not
to enable this option in the -Os case; this patch implements that.

Bootstrapped with no regressions on x86_64-unknown-linux-gnu; tested
for a cross to x86_64-linux-gnu --with-arch=btver2, where those test
failures duly disappear.

* config/i386/i386.c (ix86_option_override_internal): Don't set
-fprefetch-loop-arrays if optimizing for size.

From-SVN: r222033

gcc_release: For RELEASE_MAJOR 5+ only use the major number in branch name.

* gcc_release: For RELEASE_MAJOR 5+ only use the major
number in branch name.  When doing final release of 5+,
if BASE-VER doesn't match release, but is *.*.1 for the
one smaller minor version, bump BASE-VER.

From-SVN: r222031