[Patch][expand] Check gimple statement to improve LSHIFT_EXP expand

This patch improves LSHIFT_EXP expand if the shift operand comes from sign
extension and the shift result across word_mode_size boundary. See code
comments for details.

2015-08-19  Jiong.Wang  <jiong.wang@arm.com>

gcc/
  * expr.c (expand_expr_real_2): Check gimple statement during
  LSHIFT_EXPR expand.

gcc/testsuite
  * gcc.dg/wide_shift_64_1.c: New testcase.
  * gcc.dg/wide_shift_128_1.c: Likewise.
  * gcc.target/aarch64/ashlti3_1.c: Likewise.

From-SVN: r227018

common.opt (fstack-protector): Initialize to -1.

       * common.opt (fstack-protector): Initialize to -1.
        (fstack-protector-all): Likewise.
        (fstack-protector-strong): Likewise.
        (fstack-protector-explicit): Likewise.
        * configure.ac: Add --enable-default-ssp.
        * defaults.h (DEFAULT_FLAG_SSP): New.  Default SSP to strong.
        * opts.c (finish_options): Update opts->x_flag_stack_protect if it is
        -1.
        * doc/install.texi: Document --enable-default-ssp.
        * config.in: Regenerated.
        * configure: Likewise.

        * lib/target-supports.exp
        (check_effective_target_fstack_protector_enabled): New test.
        * gcc.target/i386/ssp-default.c: New test.

From-SVN: r227017

[PR64164] fix regressions reported on m68k and armeb

Defer stack slot address assignment for all parms that can't live in
pseudos, and accept pseudos assignments in assign_param_setup_block.

for  gcc/ChangeLog

PR rtl-optimization/64164
* cfgexpand.c (parm_maybe_byref_p): Renamed to...
(parm_in_stack_slot_p): ... this.  Disregard mode, what
matters is whether the parm will live in a pseudo or a stack
slot.
(expand_one_ssa_partition): Deal with params without a default
def.  Disregard mode.
* cfgexpand.h: Renamed function declaration.
* tree-ssa-coalesce.c: Adjust.
* function.c (split_complex_args): Allocate stack slot for
unassigned parms before splitting.
(parm_in_unassigned_mem_p): New.  Use it instead of
parm_maybe_byref_p throughout this file.
(assign_parm_setup_block): Use it.  Accept pseudos in the
expand-assigned rtl.
(assign_parm_setup_reg): Drop BLKmode requirement.
(assign_parm_setup_stack): Allocate and fill in the address of
unassigned MEM parms.

From-SVN: r227015

genmodes.c (emit_mode_unit_size_inline): New function.

2015-08-19  David Sherwood  <david.sherwood@arm.com>

    gcc/
* genmodes.c (emit_mode_unit_size_inline): New function.
(emit_mode_unit_precision_inline): New function.
(emit_insn_modes_h): Emit new #define.  Emit new functions.
(emit_mode_unit_size): New function.
(emit_mode_unit_precision): New function.
(emit_mode_adjustments): Add mode_unit_size adjustments.
(emit_insn_modes_c): Emit new arrays.
* machmode.h (GET_MODE_UNIT_SIZE, GET_MODE_UNIT_PRECISION): Update to
use new inline methods.

From-SVN: r227013

[AArch64] Use popcount_hwi instead of homebrew version

* config/aarch64/aarch64.c (bit_count): Delete prototype
and definition.
(aarch64_print_operand): Use popcount_hwi instead of the above.

From-SVN: r227012

[AArch64][obvious] Remove obsolete comment in aarch64-option-extensions.def

* config/aarch64/aarch64-option-extensions.def: Delete obsolete
comment.

From-SVN: r227011

Forward-port test generic_31.f90 from the 5 branch.

gcc/testsuite/
PR fortran/66929
* gfortran.dg/generic_31.f90: New.

From-SVN: r227010

re PR middle-end/67133 (ICE at -Os and above on x86_64-linux-gnu in gimple_op, at gimple.h:2274)

PR middle-end/67133
* gimple-ssa-isolate-paths.c
(insert_trap_and_remove_trailing_statements): Rename to ...
(insert_trap): ... this.  Don't remove trailing statements; split
block instead.
(find_explicit_erroneous_behaviour): Don't remove all outgoing edges.

* g++.dg/torture/pr67133.C: New test.

From-SVN: r227009

Avoid signed left shift undefined behaviour in sext_hwi

gcc/
PR other/67042
* hwint.h (sext_hwi): Switch to unsigned for the left shift, and
conditionalize the whole on __GNUC__.  Add fallback code
depending neither on undefined nor implementation-defined behaviour.

From-SVN: r227008

cmath: Fix typo in comment.

2015-08-19  Paolo Carlini  <paolo.carlini@oracle.com>

* include/c_global/cmath: Fix typo in comment.

From-SVN: r227007

cmath: Revert fix for libstdc++/58625...

2015-08-19  Paolo Carlini  <paolo.carlini@oracle.com>

* include/c_global/cmath: Revert fix for libstdc++/58625, no
longer necessary (__builtin_signbit is now type-generic).

From-SVN: r227006

[AArch64] Cleanup whitespace in aarch64.c

2015-08-19  Jiong Wang  <jiong.wang@arm.com>

gcc/
  * config/aarch64/aarch64.c (aarch64_load_symref_appropriately): Replace
  whitespaces with tab.

From-SVN: r227005

Make the stack non-executable in GNAT tools

Due to PR67205, the deeply nested instantiations require trampolines,
which in turn requires an executable stack for the GNAT tools on
architectures such as x86_64.

From-SVN: r227004

* ChangeLog: Fix corrupted entry.

From-SVN: r227003

[ARM] Use %wd format for lane printing in bounds_check

* config/arm/arm.c (bounds_check): Use %wd print format
for HOST_WIDE_INT arguments.

From-SVN: r227002

remove more useless typedefs

gcc/c-family/ChangeLog:

2015-08-18  Trevor Saunders  <tbsaunde@tbsaunde.org>

* c-ada-spec.h, c-common.c, c-common.h, c-format.c, c-format.h,
c-objc.h, c-ppoutput.c, c-pragma.c, c-pragma.h: Remove useless
 typedefs.

gcc/c/ChangeLog:

2015-08-18  Trevor Saunders  <tbsaunde@tbsaunde.org>

* c-aux-info.c, c-parser.c, c-tree.h: Remove useless typedefs.

gcc/cp/ChangeLog:

2015-08-18  Trevor Saunders  <tbsaunde@tbsaunde.org>

* call.c, class.c, cp-tree.h, decl.c, except.c, mangle.c,
method.c, name-lookup.h, parser.c, parser.h, rtti.c,
semantics.c, typeck2.c: Remove useless typedefs.

gcc/fortran/ChangeLog:

2015-08-18  Trevor Saunders  <tbsaunde@tbsaunde.org>

* dependency.c, dependency.h, gfortran.h, io.c, module.c,
parse.h, resolve.c, trans-types.h, trans.h: remove useless
typedefs.

gcc/lto/ChangeLog:

2015-08-18  Trevor Saunders  <tbsaunde@tbsaunde.org>

* lto.h: Remove useless typedefs.

gcc/objc/ChangeLog:

2015-08-18  Trevor Saunders  <tbsaunde@tbsaunde.org>

* objc-act.h, objc-next-runtime-abi-02.c, objc-runtime-hooks.h:
Remove useless typedefs.

gcc/ChangeLog:

2015-08-18  Trevor Saunders  <tbsaunde@tbsaunde.org>

* bb-reorder.c, cfgloop.h, collect2.c, combine.c, dse.c,
dwarf2cfi.c, gcse-common.h, genopinit.c, ggc-page.c, machmode.h,
mcf.c, modulo-sched.c, omp-low.c, read-rtl.c, sched-rgn.c,
signop.h, tree-call-cdce.c, tree-dfa.c, tree-diagnostic.c,
tree-inline.h, tree-scalar-evolution.c, tree-ssa-address.c,
tree-ssa-loop-niter.c, tree-ssa-loop.h, tree-ssa-pre.c,
tree-ssa-reassoc.c, tree-ssa-sccvn.h, tree-ssa-structalias.c,
tree-ssa-uninit.c, tree-ssa.h, tree-vect-loop-manip.c,
tree-vectorizer.h, tree-vrp.c, var-tracking.c: Remove useless
typedefs.

From-SVN: r227001

remove useless typedefs

gcc/ChangeLog:

2015-08-11  trevor Saunders  <tbsaunde@tbsaunde.org>

* bt-load.c, cgraph.h, dwarf2out.c, dwarf2out.h, final.c,
function.c, graphite-scop-detection.c, haifa-sched.c,
ipa-devirt.c, ipa-split.c, recog.c, ree.c, stmt.c,
tree-data-ref.c, tree-ssa-dom.c, tree-ssa-loop-ivopts.c,
varasm.c: Remove typedefs of structs.

From-SVN: r227000

Daily bump.

From-SVN: r226998

altivec.h (vec_adde): New define.

[gcc]

2015-08-18  Bill Schmidt  <wschmidt@vnet.linux.ibm.com>

* config/rs6000/altivec.h (vec_adde): New define.
(vec_addec): Likewise.
(vec_double): Likewise.
(vec_bperm): Likewise.
(vec_gb): Likewise.
* config/rs6000/rs6000-builtin.def (ADDE): New
BU_ALTIVEC_OVERLOAD_3.
(ADDEC): Likewise.
(DOUBLE): New BU_VSX_OVERLOAD_1.
* config/rs6000/rs6000-c.c (altivec_overloaded_builtins): Add new
entries for ALTIVEC_BUILTIN_VEC_ADDC, ALTIVEC_BUILTIN_VEC_ADDE,
ALTIVEC_BUILTIN_VEC_ADDEC, ALTIVEC_BUILTIN_VEC_ANDC,
VSX_BUILTIN_VEC_DOUBLE, ALTIVEC_BUILTIN_VEC_MERGEH,
ALTIVEC_BUILTIN_VEC_MERGEL, ALTIVEC_BUILTIN_VEC_NOR,
ALTIVEC_BUILTIN_VEC_OR, ALTIVEC_BUILTIN_VEC_XOR,
ALTIVEC_BUILTIN_VEC_PERM, ALTIVEC_BUILTIN_VEC_SEL,
P8V_BUILTIN_VEC_EQV, P8V_BUILTIN_VEC_NAND, P8V_BUILTIN_VEC_ORC,
and P8V_BUILTIN_VEC_VBPERMQ.

[gcc/testsuite]

2015-08-18  Bill Schmidt  <wschmidt@vnet.linux.ibm.com>

* gcc.target/powerpc/altivec-35.c: New test.
* gcc.target/powerpc/p8vector-builtin-8.c: New test.
* gcc.target/powerpc/vsx-vector-7.c: New test.

From-SVN: r226995

* print-tree.c (print_node): Handle TREE_BINFO.

From-SVN: r226994

re PR c++/66919 (C++14 ICE during error reporting)

PR c++/66919
* g++.dg/cpp1y/auto-fn27.C: New.

From-SVN: r226993

DR 1155

DR 1155
* pt.c (convert_nontype_argument): Allow internal linkage in C++11
and up.

From-SVN: r226992

re PR middle-end/36757 (__builtin_signbit should be type-generic)

PR middle-end/36757

* builtins.c (expand_builtin_signbit): Add asserts to make sure
we can expand BUILT_IN_SIGNBIT inline.
* builtins.def (BUILT_IN_SIGNBIT): Make type-generic.
* doc/extend.texi: Document the type-generic __builtin_signbit.

* c-common.c (check_builtin_function_arguments): Add check
for BUILT_IN_SIGNBIT argument.

* gcc.dg/builtins-error.c: Add checks for __builtin_signbit.
* gcc.dg/tg-tests.h: Add checks for __builtin_signbit.

From-SVN: r226990

re PR rtl-optimization/67218 (Combine incorrectly folds (double) (float) (unsigned))

gcc/
PR rtl-optimization/67218
* simplify-rtx.c (exact_int_to_float_conversion_p): New function.
(simplify_unary_operation_1): Use it.

gcc/testsuite/
PR rtl-optimization/67218
* gcc.c-torture/execute/ieee/pr67218.c,
gcc.target/aarch64/fcvt_int_float_double1.c,
gcc.target/aarch64/fcvt_int_float_double2.c,
gcc.target/aarch64/fcvt_int_float_double3.c,
gcc.target/aarch64/fcvt_int_float_double4.c,
gcc.target/aarch64/fcvt_uint_float_double1.c,
gcc.target/aarch64/fcvt_uint_float_double2.c,
gcc.target/aarch64/fcvt_uint_float_double3.c,
gcc.target/aarch64/fcvt_uint_float_double4.c: New tests.

From-SVN: r226987

re PR c++/67216 (false is still a null pointer constant)

PR c++/67216
* testsuite/tr1/2_general_utilities/shared_ptr/observers/bool_conv.cc:
Fix use of safe-bool idiom that isn't valid in C++11.

From-SVN: r226986

* include/bits/ptr_traits.h: Include <bits/move.h> for addressof.

From-SVN: r226985

re PR libstdc++/67066 (libstdc++-v3/src/filesystem/dir.cc fails to compile with --enable-concept-checks)

PR libstdc++/67066
* doc/xml/manual/configure.xml (manual.intro.setup.configure): Add
caveats for --enable-concept-checks. Improve link text.
* doc/xml/manual/diagnostics.xml (std.diagnostics.concept_checking):
Clarify caveats.
* doc/html/*: Regenerate.
* include/bits/stl_deque.h (deque): Only use concept checks in C++03.
* include/bits/stl_stack.h (stack): Likewise.
* include/bits/stl_vector.h (vector): Likewise.

From-SVN: r226984

atomic-comp-swap-release-acquire.c: Adjust dg-options to disable LSE extensions.

* gcc.target/aarch64/atomic-comp-swap-release-acquire.c: Adjust
dg-options to disable LSE extensions.
* gcc.target/aarch64/atomic-op-acq_rel.c: Likewise.
* gcc.target/aarch64/atomic-op-acquire.c: Likewise.
* gcc.target/aarch64/atomic-op-char.c: Likewise.
* gcc.target/aarch64/atomic-op-consume.c: Likewise.
* gcc.target/aarch64/atomic-op-imm.c: Likewise.
* gcc.target/aarch64/atomic-op-int.c: Likewise.
* gcc.target/aarch64/atomic-op-long.c: Likewise.
* gcc.target/aarch64/atomic-op-relaxed.c: Likewise.
* gcc.target/aarch64/atomic-op-seq_cst.c: Likewise.
* gcc.target/aarch64/atomic-op-release.c: Likewise.
* gcc.target/aarch64/atomic-op-short.c: Likewise.
* gcc.target/aarch64/sync-comp-swap.c: Likewise.
* gcc.target/aarch64/sync-op-acquire.c: Likewise.
* gcc.target/aarch64/sync-op-full.c: Likewise.
* gcc.target/aarch64/sync-op-release.c: Likewise.

From-SVN: r226979

re PR c++/67160 (static_assert feature test macro)

c-family/
2015-08-18  Paolo Carlini  <paolo.carlini@oracle.com>

PR c++/67160
* c-cppbuiltin.c (c_cpp_builtins): Fix __cpp_static_assert value
in c++1z mode.

testsuite/
2015-08-18  Paolo Carlini  <paolo.carlini@oracle.com>

PR c++/67160
* g++.dg/cpp1z/feat-cxx1z.C: New.

From-SVN: r226972

re PR middle-end/67222 (ICE in gimple_call_arg with bogus posix_memalign)

PR middle-end/67222
* gimple-low.c (lower_stmt): Don't lower BUILT_IN_POSIX_MEMALIGN
if the call isn't valid.
* tree-ssa-alias.c (ref_maybe_used_by_call_p_1): Check builtins using
gimple_call_builtin_p.
(call_may_clobber_ref_p_1): Likewise.
(stmt_kills_ref_p): Likewise.

* gcc.dg/torture/pr67222.c: New test.

From-SVN: r226969

[MIPS] Fix register renaming in the interrupt handlers.

gcc/
* config/mips/mips-protos.h (mips_hard_regno_rename_ok): New prototype.
* config/mips/mips.c (mips_hard_regno_rename_ok): New function.
(mips_hard_regno_scratch_ok): Likewise.
(TARGET_HARD_REGNO_SCRATCH_OK): Define macro.
* config/mips/mips.h (HARD_REGNO_RENAME_OK): New.

gcc/testsuite/
* gcc.target/mips/interrupt_handler-bug-1.c: New test.

From-SVN: r226968

tree-ssa-loop-niter.c (refine_value_range_using_guard): New.

* tree-ssa-loop-niter.c (refine_value_range_using_guard): New.
(determine_value_range): Call refine_value_range_using_guard for
each loop initial condition to improve value range.

gcc/testsuite/ChangeLog
* gcc.dg/tree-ssa/loop-bound-1.c: New test.
* gcc.dg/tree-ssa/loop-bound-3.c: New test.
* gcc.dg/tree-ssa/loop-bound-5.c: New test.

From-SVN: r226966

xtensa: fix _Unwind_GetCFA

Returning context->cfa in _Unwind_GetCFA makes CFA point one stack frame
higher than what was actually used by code at context->ra. This results
in invalid CFA value in signal frames and premature unwinding completion
in forced unwinding used by uClibc NPTL thread cancellation.
Returning context->sp from _Unwind_GetCFA makes all CFA values valid and
matching code that used them.

2015-08-18  Max Filippov  <jcmvbkbc@gmail.com>
libgcc/
* config/xtensa/unwind-dw2-xtensa.c (_Unwind_GetCFA): Return
context->sp instead of context->cfa.

From-SVN: r226964

xtensa: use unwind-dw2-fde-dip instead of unwind-dw2-fde

This allows having exception cleanup code in binaries that don't
register their unwind tables.

2015-08-18  Max Filippov  <jcmvbkbc@gmail.com>
libgcc/
* config/xtensa/t-windowed (LIB2ADDEH): Replace unwind-dw2-fde
with unwind-dw2-fde-dip.

From-SVN: r226963

xtensa: reimplement register spilling

Spilling windowed registers in userspace is much easier, more portable,
less error-prone and equally effective as in kernel. Now that register
spilling syscall is considered obsolete in the xtensa linux kernel
replace it with CALL12 followed by series of ENTRY in libgcc.

2015-08-18  Max Filippov  <jcmvbkbc@gmail.com>
libgcc/
* config/xtensa/lib2funcs.S (__xtensa_libgcc_window_spill): Use
CALL12 followed by series of ENTRY to spill windowed registers.
(__xtensa_nonlocal_goto): Call __xtensa_libgcc_window_spill
instead of making linux spill syscall.

From-SVN: r226962

Daily bump.

From-SVN: r226961

mips.exp: Redefine isa variable which is referenced in later code.

gcc/testsuite/
* gcc.target/mips/mips.exp (mips-dg-options): Redefine isa
which is used in later code.

From-SVN: r226957

re PR c++/67216 (false is still a null pointer constant)

/cp
2015-08-17  Paolo Carlini  <paolo.carlini@oracle.com>

PR c++/67216
* call.c (null_ptr_cst_p): In C++11 return 'false' for 'false'.

/testsuite
2015-08-17  Paolo Carlini  <paolo.carlini@oracle.com>

PR c++/67216
* g++.dg/cpp0x/nullptr34.C: New.
* g++.dg/warn/Wconversion2.C: Adjust.
* g++.dg/warn/Wnull-conversion-1.C: Likewise.
* g++.old-deja/g++.other/null3.C: Likewise.

* g++.dg/cpp0x/pr51313.C: Adjust.

From-SVN: r226956

re PR c++/67244 (internal compiler error: in gimplify_var_or_parm_decl, at gimplify.c:1801)

PR c++/67244
* pt.c (tsubst_copy_and_build): Call insert_pending_capture_proxies.

From-SVN: r226950

re PR c++/67104 (Constant expression factory function initializes std::array with static storage duration strangely)

PR c++/67104
* constexpr.c (array_index_cmp, find_array_ctor_elt): New.
(cxx_eval_array_reference, cxx_eval_store_expression): Use them.

From-SVN: r226949

constexpr.c (cxx_eval_store_expression): Don't set CONSTRUCTOR_NO_IMPLICIT_ZERO if we have an enclosing CONSTRUCTOR...

* constexpr.c (cxx_eval_store_expression): Don't set
CONSTRUCTOR_NO_IMPLICIT_ZERO if we have an enclosing CONSTRUCTOR
without it.
(cxx_eval_array_reference): Check it.

From-SVN: r226948

* except.c (check_noexcept_r): Assert that fn is POINTER_TYPE_P.

From-SVN: r226947

* da.po: Update.

From-SVN: r226944

* config/i386/i386.c: Remove include of fibheap.h.

From-SVN: r226943

c-pretty-print.c (pp_c_cv_qualifiers): Remove code dealing with whitespaces before qualifier names.

* c-pretty-print.c (pp_c_cv_qualifiers): Remove code dealing
with whitespaces before qualifier names.

From-SVN: r226939

re PR tree-optimization/67221 (ICE at -Os and above on x86_64-linux-gnu: Segmentation fault (program cc1))

2015-08-17  Richard Biener  <rguenther@suse.de>

PR tree-optimization/67221
* tree-ssa-sccvn.c (visit_phi): Keep all-TOP args TOP.
(sccvn_dom_walker::before_dom_children): Mark backedges of
non-executable blocks as not executable.

* gcc.dg/torture/pr67221.c: New testcase.

From-SVN: r226938

arm.c (neon_element_bits): Replace call to GET_MODE_BITSIZE (GET_MODE_INNER (m)) with...

        * config/arm/arm.c (neon_element_bits): Replace call to
        GET_MODE_BITSIZE (GET_MODE_INNER (m)) with GET_MODE_UNIT_BITSIZE (m).
        * config/arm/neon.md (neon_vget_lane<mode>): Likewise.
        (neon_vget_laneu<mode>, neon_vset_lane<mode>): Likewise
        (neon_vdup_lane<mode>): Likewise.
        * config/i386/i386.c (ix86_expand_int_vcond): Likewise.
        (ix86_expand_multi_arg_builtin, ix86_expand_reduc): Likewise.
        (expand_vec_perm_palignr, ix86_expand_sse2_abs): Likewise.
        * config/rs6000/rs6000.c (rs6000_do_expand_vec_perm): Likewise.
        * config/spu/spu.c (arith_immediate_p): Likewise.
        * expmed.c (store_bit_field_1, extract_bit_field_1): Likewise.
        * expr.c (expand_expr_real_2): Likewise.
        * optabs.c (shift_amt_for_vec_perm_mask): Likewise.
        * simplify-rtx.c (simplify_immed_subreg): Likewise.
        * tree-cfg.c (verify_gimple_assign_ternary): Likewise.
        * tree-vect-patterns.c (vect_recog_mixed_size_cond_pattern): Likewise.
        New variable.
        * fold-const.c (fold_binary_loc): Replace call to
        GET_MODE_PRECISION (GET_MODE_INNER (m)) with
        GET_MODE_UNIT_PRECISION (m).

From-SVN: r226936

[ARM] arm memcpy of aligned data

2015-08-17  Mike Stump  <mikestump@comcast.net>

* config/arm/arm.c (arm_block_move_unaligned_straight):
Emit normal move instead of unaligned load when source or destination
are appropriately aligned.

2015-08-17 Mike Stump  <mikestump@comcast.net>
           Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

* gcc.target/arm/memcpy-aligned-1.c: New test.

Co-Authored-By: Kyrylo Tkachov <kyrylo.tkachov@arm.com>
From-SVN: r226935

re PR tree-optimization/16107 (missed optimization with some math function builtins)

2015-08-17  Richard Biener  <rguenther@suse.de>
    Naveen H.S  <Naveen.Hurugalawadi@caviumnetworks.com>

PR middle-end/16107
* match.pd (div (coss (op @0) : New simplifier.

Co-Authored-By: Naveen H.S <Naveen.Hurugalawadi@caviumnetworks.com>
From-SVN: r226934

Daily bump.

From-SVN: r226932

re PR fortran/54656 (ICE with software REAL(16) for NORM2)

PR fortran/54656

* trans-intrinsic.c (gfc_build_intrinsic_lib_fndecls): Add decl
for quadruple precision BUILT_IN_SQRT.

* gfortran.dg/norm_4.f90: Rename to...
* gfortran.dg/norm2_4.f90: this.
* gfortran.dg/norm2_5.f90: New test.

From-SVN: r226929

trans-intrinsic.c (conv_intrinsic_ieee_is_negative): Use type generic BUILT_IN_SIGNBIT.

* trans-intrinsic.c (conv_intrinsic_ieee_is_negative): Use type
generic BUILT_IN_SIGNBIT.
(conv_intrinsic_ieee_copy_sign): Likewise.
* f95-lang.c (gfc_init_builtin_functions): Add BUILT_IN_ISINF,
BUILT_IN_ISINF_SIGN, BUILT_IN_SIGNBIT, BUILT_IN_ISLESS,
BUILT_IN_ISLESSGREATER, BUILT_IN_ISGREATER. Remove non-type generic
variants of BUILT_IN_SIGNBIT.
* mathbuiltins.def: Remove SIGNBIT.

From-SVN: r226924

re PR libfortran/41387 (OPEN, STATUS='NEW' of a symbolic link to a non-existing file fails.)

PR fortran/41387
* gfortran.texi: New section "File operations on symbolic links".

From-SVN: r226923

Daily bump.

From-SVN: r226915

cp-demangle.c (d_abi_tags): Preserve di->last_name across any ABI tags.

* cp-demangle.c (d_abi_tags): Preserve di->last_name across any
ABI tags.

From-SVN: r226910

re PR c++/65974 (Bogus deprecated-declarations warnings for inline definitions of deprecated virtual methods)

PR c++/65974
* decl2.c (mark_vtable_entries): Suppress -Wdeprecated.

From-SVN: r226908

Daily bump.

From-SVN: r226907

[PR64164] Drop copyrename, use coalescible partition as base when optimizing.

for  gcc/ChangeLog

PR rtl-optimization/64164
PR bootstrap/66978
PR middle-end/66983
PR rtl-optimization/67000
PR middle-end/67034
PR middle-end/67035
* Makefile.in (OBJS): Drop tree-ssa-copyrename.o.
* tree-ssa-copyrename.c: Removed.
* opts.c (default_options_table): Drop -ftree-copyrename.  Add
-ftree-coalesce-vars.
* passes.def: Drop all occurrences of pass_rename_ssa_copies.
* common.opt (ftree-copyrename): Ignore.
(ftree-coalesce-inlined-vars): Likewise.
* doc/invoke.texi: Remove the ignored options above.
* gimple-expr.h (gimple_can_coalesce_p): Move declaration
* tree-ssa-coalesce.h: ... here.
* tree-ssa-uncprop.c: Include tree-ssa-coalesce.h and other
headers required by it.
* gimple-expr.c (gimple_can_coalesce_p): Allow coalescing
across variables when flag_tree_coalesce_vars.  Check register
use and promoted modes to allow coalescing.  Do not coalesce
maybe-byref parms with SSA_NAMEs of other variables, or
anonymous SSA_NAMEs.  Moved to tree-ssa-coalesce.c.
* tree-ssa-live.c (struct tree_int_map_hasher): Move along
with its member functions to tree-ssa-coalesce.c.
(var_map_base_init): Likewise.  Renamed to
compute_samebase_partition_bases.
(partition_view_normal): Drop want_bases parameter.
(partition_view_bitmap): Likewise.
* tree-ssa-live.h: Adjust declarations.
* tree-ssa-coalesce.c: Include explow.h and cfgexpand.h.
(build_ssa_conflict_graph): Process PARM_ and RESULT_DECLs's
default defs at the entry point.
(dump_part_var_map): New.
(compute_optimized_partition_bases): New, called by...
(coalesce_ssa_name): ... when flag_tree_coalesce_vars, instead
of compute_samebase_partition_bases.  Adjust.
* alias.c (nonoverlapping_memrefs_p): Disregard gimple-regs.
* cfgexpand.c (leader_merge, parm_maybe_byref_p): New.
(ssa_default_def_partition): New.
(get_rtl_for_parm_ssa_default_def): New.
(align_local_variable, add_stack_var): Support anonymous SSA
names.
(defer_stack_allocation): Likewise.  Declare earlier.
(set_rtl): Merge exprs and attrs, even for MEMs and non-SSA
vars.  Update DECL_RTL for PARM_DECLs and RESULT_DECLs too.
Do no record deferred-allocation marker in
SA.partition_to_pseudo.
(expand_stack_vars): Adjust check for the marker in it.
(expand_one_stack_var_at): Handle anonymous SSA_NAMEs.  Drop
redundant MEM attr setting.
(expand_one_stack_var_1): Handle anonymous SSA_NAMEs.  Renamed
from...
(expand_one_stack_var): ... this.  New wrapper to check and
skip already expanded SSA partitions.
(record_alignment_for_reg_var): New, factored out of...
(expand_one_var): ... this.
(expand_one_ssa_partition): New.
(adjust_one_expanded_partition_var): New.
(expand_one_register_var): Check and skip already expanded SSA
partitions.
(expand_used_vars): Don't create DECLs for anonymous SSA
names.  Expand all SSA partitions, then adjust all SSA names.
(pass::execute): Replace the loops that set
SA.partition_to_pseudo from partition leaders and cleared
DECL_RTL for multi-location variables, and that which used to
rename vars and set attrs, with one that clears DECL_RTL and
checks that PARMs and RESULTs default_defs match DECL_RTL.
* cfgexpand.h (get_rtl_for_parm_ssa_default_def): Declare.
* emit-rtl.c: Include stor-layout.h.
(set_reg_attrs_for_parm): Handle NULL decl.
(set_reg_attrs_for_decl_rtl): Take mode from expression if
it's not a DECL.
* stmt.c (emit_case_decision_tree): Pass it the SSA_NAME
rather than its possibly-NULL DECL.
* explow.c (promote_ssa_mode): New.
* explow.h (promote_ssa_mode): Declare.
* expr.c (expand_expr_real_1): Handle anonymous SSA_NAMEs.
(read_complex_part): Export.
* expr.h (read_complex_part): Declare.
* cfgexpand.h (parm_maybe_byref_p): Declare.
* function.c: Include cfgexpand.h.
(use_register_for_decl): Handle SSA_NAMEs, anonymous or not.
(use_register_for_parm_decl): Wrapper for the above to
special-case the result_ptr.
(rtl_for_parm): Ditto for get_rtl_for_parm_ssa_default_def.
(split_complex_args): Take assign_parm_data_all argument.
Pass it to rtl_for_parm.  Set up rtl and context for split
args.  Reset complex parm before fetching its default decl
rtl.
(assign_parms_unsplit_complex): Use the default-def complex
parm rtl if it matches the components.
(assign_parms_augmented_arg_list): Adjust.
(maybe_reset_rtl_for_parm): Reset DECL_RTL of parms with
multiple locations.  Recognize split complex args.
(assign_parm_adjust_stack_rtl): Add all and parm arguments,
for rtl_for_parm.  For SSA-assigned parms, zero stack_parm.
(assign_parm_setup_block): Prefer SSA-assigned location, and
fill in its address if the memory location of a maybe-byref
parm was not assigned by cfgexpand.
(assign_parm_setup_reg): Likewise.  Adjust its mode as
needed.  Use entry_parm for equiv if stack_parm is NULL.  Make
sure passed_pointer parms don't need conversion.  Copy address
or value as needed.
(assign_parm_setup_stack): Prefer SSA-assigned location.
(assign_parms): Maybe reset DECL_RTL of params.  Adjust stack
rtl before testing for pointer bounds.  Special-case result_ptr.
(expand_function_start): Maybe reset DECL_RTL of result.
Prefer SSA-assigned location for result and static chain.
Factor out DECL_RESULT and SET_DECL_RTL.  Convert static chain
to Pmode if needed, from H.J. Lu  <hongjiu.lu@intel.com>.
* tree-outof-ssa.c (insert_value_copy_on_edge): Handle
anonymous SSA names.  Use promote_ssa_mode.
(get_temp_reg): Likewise.
(remove_ssa_form): Adjust.
* stor-layout.c (layout_decl): Don't set mem attributes of
non-MEMs.
* var-tracking.c (dataflow_set_clear_at_call): Take call_insn
and get its reg_usage for reg invalidation.
(compute_bb_dataflow): Pass it insn.
(emit_notes_in_bb): Likewise.

for  gcc/testsuite/ChangeLog

* gcc.dg/guality/pr54200.c: Add -fno-tree-coalesce-vars.
* gcc.dg/ssp-1.c: Make counter a register.
* gcc.dg/ssp-2.c: Likewise.
* gcc.dg/torture/parm-coalesce.c: New.

From-SVN: r226901

* tree-core.h (tree_base): Fix typo.

From-SVN: r226900

compiler: Report unnamed receiver types.

    gccgo used to crash when presented with an invalid receiver type in a
    method.  Instead, unnamed receiver types should report an error.

    Fixes golang/go#11557.

    Reviewed-on: https://go-review.googlesource.com/13245

From-SVN: r226899

re PR middle-end/67133 (ICE at -Os and above on x86_64-linux-gnu in gimple_op, at gimple.h:2274)

PR middle-end/67133
* gimple.c (infer_nonnull_range_by_attribute): Check that the
nonnull argument position is not outside function arguments.

* gcc.dg/torture/pr67133.c: New test.

From-SVN: r226896

re PR target/67143 (ICE (could not split insn) on aarch64-linux-gnu)

gcc/
2015-08-14  Matthew Wahab  <matthew.wahab@arm.com>

PR target/67143
* config/aarch64/atomics.md (atomic_<optab><mode>): Replace
'lconst_atomic' with 'const_atomic'.
(atomic_fetch_<optab><mode>): Likewise.
(atomic_<optab>_fetch<mode>): Likewise.
* config/aarch64/iterators.md (lconst-atomic): Move below
'const_atomic'.
(const_atomic): New.

gcc/testsuite/
2015-08-14  Matthew Wahab  <matthew.wahab@arm.com>
    Matthias Klose  <doko@debian.org>

PR target/67143
* gcc.c-torture/compile/pr67143.c: New
* gcc.target/aarch64/atomic-op-imm.c
(atomic_fetch_add_negative_RELAXED): New.
(atomic_fetch_sub_negative_ACQUIRE): New.

Co-Authored-By: Matthias Klose <doko@debian.org>
From-SVN: r226895

any (any::operator=(const any&)): Move check for self-assignment.

* include/experimental/any (any::operator=(const any&)): Move check
for self-assignment.
(any::operator=(any&&)): Add check for self-assignment.
(any::operator=(_ValueType&&)): Constrain template argument.
(any::swap(any&)): Add check for self-swap.
* testsuite/experimental/any/assign/self.cc: Test move and swap.
* testsuite/experimental/any/misc/any_cast_neg.cc: Update dg-error.

From-SVN: r226894

array: Add feature-test macro.

* include/experimental/array: Add feature-test macro.
* testsuite/experimental/array/neg.cc: Update dg-error.

From-SVN: r226893

inclhack.def (aix_stdio_inline): New fix.

        * inclhack.def (aix_stdio_inline): New fix.
        (aix_strtof_const): Limit to *-*-aix*.
        (aix_sysmachine): Same.
        (aix_syswait_2): Same.
        (aix_volatile): Same.
        * fixincl.x: Regenerated.
        * test/base/stdio.h [AIX_STDIO_INLINE]: New test.

From-SVN: r226891

Add DWARF2_LINENO_DEBUGGING_INFO, and use it for nvptx

gcc/
* config/nvptx/nvptx.c (nvptx_option_override): Don't override
debug options.
* config/nvptx/nvptx.h (DWARF2_LINENO_DEBUGGING_INFO): Define.
(DWARF2_DEBUGGING_INFO): Don't define.
* debug.h (dwarf2_lineno_debug_hooks): Declare.
* toplev.c (process_options): Add a case for it.
* dwarf2out.c (dwarf2_lineno_debug_hooks): New variable.
(dwarf2out_init): Skip most initializations if
DWARF2_LINENO_DEBUGGING_INFO, but set cur_line_info_table in that
case.
* defaults.h (PREFERRED_DEBUGGING_TYPE): Also use DWARF2_DEBUG if
DWARF2_LINENO_DEBUGGING_INFO.
* opts.c (set_debug_level): Likewise.

Co-Authored-By: Bernd Schmidt <bernds@codesourcery.com>
From-SVN: r226890

[AArch64][obvious] Fix some target attribute inlining tests for -fPIC

* gcc.target/aarch64/target_attr_5.c: Add static modifier to bar.
* gcc.target/aarch64/target_attr_8.c: Likewise.
* gcc.target/aarch64/target_attr_14.c: Likewise.

From-SVN: r226889

DWARF2: add extensions to handle biased types

include/ChangeLog:

* dwarf2.def (DW_AT_GNU_bias): New attribute.

From-SVN: r226888

DWARF2: add extensions to handle fixed point types

include/ChangeLog:

* dwarf2.def (DW_AT_GNU_numerator, DW_AT_GNU_denominator): New
attributes.

From-SVN: r226887

[AArch64][obvious] Mark target_attr_1.c as compile-only

* gcc.target/aarch64/target_attr_1.c: Make test compile-only.

From-SVN: r226886

[Patch ARM/AArch64] Add missing is_neon_type types

gcc/

* config/arm/types.md (is_neon_type): Add missing types.

From-SVN: r226885

driver-i386.c (host_detect_local_cpu): Add support for skylake.

gcc/

* config/i386/driver-i386.c (host_detect_local_cpu): Add support
for skylake.
* config/i386/i386.c (PTA_SKYLAKE): New macros.
(processor_alias_table): Add skylake description.
(enum processor_model): Add skylake processor.
(arch_names_table): Add skylake record.
* doc/invoke.texi: Add skylake item.

gcc/testsuite/

* gcc.target/i386/builtin_target.c: Add skylake check.

libgcc/

* config/i386/cpuinfo.c (enum processor_subtypes): Add skylake.
(get_intel_cpu): Likewise.

From-SVN: r226884

jit: on OS X, add -Wl,-undefined,dynamic_lookup to driver invocation

gcc/jit/ChangeLog:
* jit-playback.c (invoke_driver): On OS X, add
"-Wl,-undefined,dynamic_lookup" to the driver arguments.

From-SVN: r226882

Daily bump.

From-SVN: r226881

dwarf.c (read_function_entry): Add vec_inlined parameter.

* dwarf.c (read_function_entry): Add vec_inlined parameter.
Change all callers.

From-SVN: r226878

pr66314.c: Moved from here to ..

* gcc.dg/pr66314.c: Moved from here to ..
* gcc.dg/asan/pr66314.c: Here.  Use -fno-sanitize=all
to clear all sanitizers before -fsanitize=kernel-address.

From-SVN: r226877

ira-int.h: Include recog.h.

* ira-int.h: Include recog.h.
* ira-build.c: Don't include recog.h.
* ira-color.c: Likewise.
* ira-conflicts.c: Likewise.
* ira-costs.c: Likewise.
* ira-emit.c: Likewise.
* ira-lives.c: Likewise.
* ira.c: Likewise.
* sched-deps.c: Likewise.
* sel-sched.c: Likewise.
* target-globals.c: Likewise.

From-SVN: r226876

re PR middle-end/55035 (reload1.c:3766:41: error: ‘orig_dup[0]’ may be used uninitialized in this function (for fr30, microblaze, moxie, rl78))

gcc/
PR bootstrap/55035
* reload1.c (elimination_costs_in_insn): Make it obvious to the
compiler that the n_dups and n_operands loop bounds are invariant.

From-SVN: r226874

[RTL-ifcvt] Allow PLUS+immediate expression in noce_try_store_flag_constants

* ifcvt.c (noce_try_store_flag_constants): Handle PLUS-immediate
expressions in A and B.

* gcc.target/aarch64/cinc_common_1.c: New test.

From-SVN: r226869

re PR c++/53421 (__attribute__((__may_alias__)) prevents taking address of conversion operator member function)

2015-08-13  Paolo Carlini  <paolo.carlini@oracle.com>

PR c++/53421
* g++.dg/ext/attribute-may-alias-1.C: New.
* g++.dg/ext/attribute-may-alias-2.C: Likewise.

From-SVN: r226868

neg.s: Remove.

2015-08-13  Ville Voutilainen  <ville.voutilainen@gmail.com>

        * testsuite/experimental/array/neg.s: Remove.
        * testsuite/experimental/array/neg.ii.gz: Remove.

From-SVN: r226866

Implement std::experimental::fundamentals_v2::make_array and std::experimental::fundamentals_v2::to_array.

2015-08-13  Ville Voutilainen  <ville.voutilainen@gmail.com>

Implement std::experimental::fundamentals_v2::make_array and
std::experimental::fundamentals_v2::to_array.
* include/Makefile.am: Add array.
* include/Makefile.in: Add array.
* include/experimental/array: New.
* testsuite/experimental/array/make_array.cc: Likewise.
* testsuite/experimental/array/neg.cc: Likewise.
* doc/html/manual/status.html: Mark make_array as Y.
* doc/xml/manual/status_cxx2017.xml: Likewise.

From-SVN: r226865

alloc_traits.h: Add feature-test macro.

* include/bits/alloc_traits.h: Add feature-test macro.
* include/bits/allocator.h: Likewise.
* include/bits/range_access.h: Likewise.
* include/bits/stl_map.h: Likewise.
* include/bits/unordered_map.h: Likewise.

From-SVN: r226864

2.cc: New.

* testsuite/30_threads/mutex/unlock/2.cc: New.
* testsuite/30_threads/recursive_mutex/unlock/2.cc: New.
* testsuite/30_threads/recursive_timed_mutex/unlock/2.cc: New.
* testsuite/30_threads/shared_mutex/unlock/1.cc: New.
* testsuite/30_threads/shared_timed_mutex/unlock/1.cc: New.
* testsuite/30_threads/timed_mutex/unlock/2.cc: New.

From-SVN: r226863

shared_mutex (shared_mutex::unlock()): Fix typo.

2015-08-13  Eelis van der Weegen  <eelis@eelis.net>

* include/std/shared_mutex (shared_mutex::unlock()): Fix typo.

From-SVN: r226862

tree.c (nonnull_arg_p): Move from ...

2015-08-13  Richard Biener  <rguenther@suse.de>

* tree.c (nonnull_arg_p): Move from ...
* tree-vrp.c (nonnull_arg_p): ... here.
* tree.h (nonnull_arg_p): Declare.
* tree-ssa-sccvn.c (init_scc_vn): Perform all lattice init
here, register ptr != 0 for nonnull_arg_p pointer arguments.
Properly initialize static chain and by-reference result pointer.
(run_scc_vn): Adjust.

From-SVN: r226861

[MIPS] Enable load/store bonding for I6400

gcc/
* config/mips/mips.h (ENABLE_LD_ST_PAIRS): Enable load/store pairs for
I6400.

From-SVN: r226860

atomic-inst-cas.c: New.

* gcc.target/aarch64/atomic-inst-cas.c: New.
* gcc.target/aarch64/atomic-inst-ops.inc: New.

From-SVN: r226859

* config/aarch64/aarch64-protos.h
(aarch64_gen_atomic_cas): Declare.
* config/aarch64/aarch64.c (aarch64_expand_compare_and_swap):
Choose appropriate instruction pattern for the target.
(aarch64_gen_atomic_cas): New.
* config/aarch64/atomics.md (UNSPECV_ATOMIC_CAS): New.
(atomic_compare_and_swap<mode>_1): Rename to
aarch64_compare_and_swap<mode>.  Fix some indentation.
(aarch64_compare_and_swap<mode>_lse): New.
(aarch64_atomic_cas<mode>): New.

From-SVN: r226858

aarch64.h (AARCH64_ISA_LSE): New.

* config/aarch64/aarch64.h (AARCH64_ISA_LSE): New.
(TARGET_LSE): New.

From-SVN: r226857

* gcc.dg/tree-ssa/vrp33.c: Add -fno-tree-fre.

From-SVN: r226856

re PR c++/62164 (5.0: ICE: error: Both section and comdat group is set)

2015-08-13  Paolo Carlini  <paolo.carlini@oracle.com>

PR c++/62164
* g++.dg/torture/pr62164.C: New.

From-SVN: r226855

re PR tree-optimization/67191 (ICE: in before_dom_children, at tree-ssa-sccvn.c:4372)

2015-08-13  Richard Biener  <rguenther@suse.de>

PR tree-optimization/67191
* tree-ssa-sccvn.c (sccvn_dom_walker::before_dom_children): Remove
assert we value-numbered last stmts operand because it can validly
trigger for unreachable code.

* gcc.dg/torture/pr67191.c: New testcase.
* g++.dg/torture/pr67191.C: Likewise.

From-SVN: r226854

[RTL-ifcvt] Improve conditional select ops on immediates (fix failing x86_64 cmov tests)

PR rtl-optimization/67103
* ifcvt.c (noce_try_store_flag_constants): Move
x = (-(test != 0) & (b - a)) + a transformation to...
(noce_try_cmove): ... Here.  Try it if normal conditional
move fails.

From-SVN: r226853

tree-ssa-sccvn.c (vn_nary_op_compute_hash): Also canonicalize comparison operand order and commutative ternary op operand order.

2015-08-12  Richard Biener  <rguenther@suse.de>

* tree-ssa-sccvn.c (vn_nary_op_compute_hash): Also canonicalize
comparison operand order and commutative ternary op operand order.
(sccvn_dom_walker::cond_stack): New state to track temporary
expressions.
(sccvn_dom_walker::after_dom_children): Remove tempoary expressions
no longer valid.
(sccvn_dom_walker::record_cond): Add a single temporary conditional
expression.
(sccvn_dom_walker::record_conds): Add a temporary conditional
expressions and all related expressions also true/false.
(sccvn_dom_walker::before_dom_children): Record temporary
expressions based on the controlling condition of a single
predecessor.  When trying to simplify a conditional statement
lookup expressions we might have inserted earlier.

* testsuite/gcc.dg/tree-ssa/ssa-fre-47.c: New testcase.
* testsuite/gcc.dg/tree-ssa/ssa-fre-48.c: Likewise.
* testsuite/gcc.dg/tree-ssa/ssa-fre-49.c: Likewise.
* testsuite/g++.dg/tree-ssa/pr61034.C: Adjust.
* testsuite/gcc.dg/fold-compare-2.c: Likewise.
* testsuite/gcc.dg/pr50763.c: Likewise.
* testsuite/gcc.dg/predict-3.c: Likewise.
* testsuite/gcc.dg/tree-ssa/20030709-2.c: Likewise.
* testsuite/gcc.dg/tree-ssa/pr19831-3.c: Likewise.
* testsuite/gcc.dg/tree-ssa/pr20657.c: Likewise.
* testsuite/gcc.dg/tree-ssa/pr21001.c: Likewise.
* testsuite/gcc.dg/tree-ssa/pr37508.c: Likewise.
* testsuite/gcc.dg/tree-ssa/vrp04.c: Likewise.
* testsuite/gcc.dg/tree-ssa/vrp07.c: Likewise.
* testsuite/gcc.dg/tree-ssa/vrp09.c: Likewise.
* testsuite/gcc.dg/tree-ssa/vrp16.c: Likewise.
* testsuite/gcc.dg/tree-ssa/vrp20.c: Likewise.
* testsuite/gcc.dg/tree-ssa/vrp25.c: Likewise.
* testsuite/gcc.dg/tree-ssa/vrp87.c: Likewise.

From-SVN: r226852

[MIPS] Remove W32 and W64 pseudo-processors.

gcc/
* config/mips/mips.c (mips_rtx_cost_data): Remove costs for W32 and W64
pseudo-processors.
* config/mips/mips.md (processor): Remove w32 and w64.

From-SVN: r226851

re PR tree-optimization/66502 (SCCVN can't handle PHIs optimistically optimally)

2015-08-13  Richard Biener  <rguenther@suse.de>

PR tree-optimization/66502
PR tree-optimization/67167
* tree-ssa-sccvn.c (vn_phi_compute_hash): Do not include
backedge arguments.
(vn_phi_lookup): Adjust.
(vn_phi_insert): Likewise.
(visit_phi): Prefer to value-number to another PHI node
over value-numbering to a PHI argument.
(init_scc_vn): Mark DFS back edges.

* gcc.dg/tree-ssa/ssa-fre-46.c: New testcase.

From-SVN: r226850

gimple.h (gcall::code_): New constant static member.

2015-08-13  Richard Biener  <rguenther@suse.de>

* gimple.h (gcall::code_): New constant static member.
(gcond::code_): Likewise.
* gimple.c (gcall::code_): Define.
(gcond::code_): Likewise.
(is_a_helper <const gcond *>): Add.
(gimple_call_lhs): Use GIMPLE_CHECK2 in the gimple overload
and forward to a new gcall overload with less checking and a
cheaper way to access the operand.
(gimple_call_lhs_ptr): Likewise.
(gimple_call_set_lhs): Likewise.
(gimple_call_internal_p): Likewise.
(gimple_call_with_bounds_p): Likewise.
(gimple_call_set_with_bounds): Likewise.
(gimple_call_internal_fn): Likewise.
(gimple_call_set_ctrl_altering): Likewise.
(gimple_call_ctrl_altering_p): Likewise.
(gimple_call_fntype): Likewise.
(gimple_call_fn): Likewise.
(gimple_call_fn_ptr): Likewise.
(gimple_call_set_fndecl): Likewise.
(gimple_call_fndecl): Likewise.
(gimple_call_chain): Likewise.
(gimple_call_num_args): Likewise.
(gimple_call_arg): Likewise.
(gimple_call_arg_ptr): Likewise.
(gimple_call_set_arg): Likewise.
(gimple_call_noreturn_p): Likewise.
(gimple_cond_code): Likewise.
(gimple_cond_lhs): Likewise.
(gimple_cond_rhs): Likewise.
(gimple_has_lhs): Reduce checking.

From-SVN: r226849

re PR middle-end/25529 ((unsigned * 2)/2 is not changed into unsigned &0x7FFFFFFF)

2015-08-13  Naveen H.S  <Naveen.Hurugalawadi@caviumnetworks.com>

PR middle-end/25529
* match.pd (div (mult @0 @1) @1) : New simplifier.

From-SVN: r226847

compiler: Flatten erroneous subtrees into errors.

    Between the lowering and flattening passes of the compiler, there are
    several passes that modify the lowered Go parse tree and as errors are
    discovered, several nodes transform into error nodes.  However, for a
    higher level node such as a construction expression, the erroneous
    nodes in the subtrees might not propagate their error.  The flatten
    phase for a node now looks for errors in the subtree and flattens the
    node into an error node if any are found.

    Fixes golang/go#11559, golang/go#11536, golang/go#11558.

    Reviewed-on: https://go-review.googlesource.com/13097

From-SVN: r226845