re PR middle-end/81832 (ICE in expand_LOOP_DIST_ALIAS, at internal-fn.c:2273)

PR tree-optimization/81832
* tree-ssa-loop-ch.c (should_duplicate_loop_header_p): Don't
copy loop header which has IFN_LOOP_DIST_ALIAS call.

gcc/testsuite
* gcc.dg/tree-ssa/pr81832.c: New test.

From-SVN: r251123

re PR middle-end/81695 (internal compiler error: in size_binop_loc, at fold-const.c:1768)

PR middle/81695
* fold-const.c (fold_indirect_ref_1): Restore original behavior
regarding size_zero_node.

From-SVN: r251119

Fix building of cross compiler (PR target/81753).

2017-08-16  Martin Liska  <mliska@suse.cz>

PR target/81753
* config.gcc: Respect previously set extra_objs in case
of darwin target.

From-SVN: r251118

PR81815: Invalid conditional reduction

We weren't checking whether the phi in a conditional reduction was
used by the condition itself (which isn't a case we handle).

2017-08-11  Richard Sandiford  <richard.sandiford@linaro.org>

gcc/
PR tree-optimization/81835
* tree-vect-loop.c (vect_is_simple_reduction): Simply checks for
the phi SSA_NAME.  Check that the condition in a COND_EXPR does
not depend on the phi.

gcc/testsuite/
PR tree-optimization/81835
* gcc.dg/vect/pr81815.c: New test.

From-SVN: r251117

[RS6000] Delete code made dead by r250482

* config/rs6000/rs6000.c (rs6000_init_hard_regno_mode_ok): Delete
dead code.

From-SVN: r251116

[RS6000] Merge rs6000_reg_live_or_pic_offset_p into save_reg_p

rs6000_reg_live_or_pic_offset_p is just save_reg_p with special
handling for the pic register and eh_return.  This merge also
simplifies the eh_return handling.  The intent of
https://gcc.gnu.org/ml/gcc-patches/2010-09/msg01838.html was to say
the PIC reg needed to be saved for eh_return, not all gprs.  Of
course, it doesn't hurt to say all gprs need to be saved for eh_return
as that is what the target-independent code does by setting DF live,
but it's unnecessary in the backend.

* config/rs6000/rs6000.c (rs6000_reg_live_or_pic_offset_p): Merge..
(save_reg_p): ..into this.  Update all callers.
(first_reg_to_save): Simplify.

From-SVN: r251115

[RS6000] Don't restore fixed regs

* config/rs6000/rs6000.c (rs6000_savres_strategy): Don't restore
fixed regs.

From-SVN: r251114

Daily bump.

From-SVN: r251113

Limit SH strncmp inline expansion (PR target/78460).

GCC mainline built for sh4-linux-gnu runs out of memory building a
glibc test, which calls strncmp with very large constant size
argument, resulting in the SH inline strncmp expansion trying to
inline a fully unrolled expansion of strncmp for that size.

This patch limits that fully unrolled expansion to the case of less
than 32 bytes.  This is explicitly *not* trying to be optimal in any
way (very likely a lower threshold makes sense), just to limit enough
to avoid the out-of-memory issue in the glibc testsuite.

I have *not* run the GCC testsuite for SH.  I have verified that this
allows the glibc testsuite to build OK, with both GCC mainline and GCC
7 branch (and that the included test builds quickly with patched GCC,
runs out of memory with unpatched GCC).

PR target/78460
PR target/67712
gcc:
* config/sh/sh-mem.cc (sh_expand_cmpnstr): Only unroll for
constant count if that count is less than 32.

gcc/testsuite:
* gcc.c-torture/compile/string-large-1.c: New test.

From-SVN: r251108

Update .po files.

* be.po, da.po, de.po, el.po, es.po, fi.po, fr.po, hr.po, id.po,
ja.po, nl.po, ru.po, sr.po, sv.po, tr.po, uk.po, vi.po, zh_CN.po,
zh_TW.po: Update.

From-SVN: r251106

gcc.c (execute): Emit friendlier message if inferior is killed by an external cause.

* gcc.c (execute): Emit friendlier message if inferior is killed
by an external cause.

From-SVN: r251104

re PR tree-optimization/81790 (ICE in vn_nary_build_or_lookup_1, at tree-ssa-sccvn.c:1738)

2017-08-15  Richard Biener  <rguenther@suse.de>

PR tree-optimization/81790
* tree-ssa-sccvn.c (vn_lookup_simplify_result): Handle both
CONSTRUCTORs from simplifying and VN.

* gcc.dg/torture/pr81790.c: New testcase.

From-SVN: r251103

builtin-attrs.def: Add comments.

gcc/ChangeLog:

* builtin-attrs.def: Add comments.

From-SVN: r251101

PR c/81117 - Improve buffer overflow checking in strncpy - part 2

gcc/ChangeLog:

PR c/81117
* doc/extend.texi (attribute nonstring): Document new attribute.

gcc/c-family/ChangeLog:

PR c/81117
* c-attribs.c (c_common_attribute_table): Add nonstring entry.
(handle_nonstring_attribute): New function.

gcc/testsuite/ChangeLog:

PR c/81117
* c-c++-common/attr-nonstring-1.c: New test.

From-SVN: r251100

PR c/81117 - Improve buffer overflow checking in strncpy - part 1

gcc/ChangeLog:

        PR c/81117
* tree-diagnostic.c (default_tree_printer): Handle %G.
* gimple-pretty-print.h (percent_G_format): Declare new function.
* gimple-pretty-print.c (percent_G_format): Define.
* tree-pretty-print.c (percent_K_format): Add argument.

gcc/c/ChangeLog:

PR c/81117
* c-objc-common.c (c_objc_common_init): Handle 'G'.

gcc/c-family/ChangeLog:

PR c/81117
* c-format.h (T89_G): New macro.
* c-format.c (local_gcall_ptr_node): New variable.
(init_dynamic_diag_info): Initialize it.

gcc/cp/ChangeLog:

PR c/81117
* error.c (cp_printer): Handle 'G'.

gcc/testsuite/ChangeLog:

PR c/81117
* gcc.dg/format/gcc_diag-10.c: Exercise %G.

From-SVN: r251098

ucnid-5.c: Skip on AIX.

        * gcc.dg/ucnid-5.c: Skip on AIX.
        * gcc.target/powerpc/pr79909.c: Skip on AIX.

From-SVN: r251097

PR translation/79998 - typo in diagnostic "specified bound %wu"

gcc/ChangeLog:
* gimple-ssa-sprintf.c (pass_sprintf_length::handle_gimple_call):
Remove a stray space.

From-SVN: r251096

re PR target/46091 (missed optimization: x86 bt/btc/bts instructions)

PR target/46091
* config/i386/i386.md (*anddi_1_btr): New insn_and_split pattern.
(*iordi_1_bts): Ditto.
(*xordi_1_btc): Ditto.

testsuite/ChangeLog:

PR target/46091
* gcc.target/i386/pr46091-1.c: New test.
* gcc.target/i386/pr46091-2.c: Ditto.
* gcc.target/i386/pr46091-3.c: Ditto.

From-SVN: r251095

[AArch64] Fix longbranch test

Fix longbranch test so it still generates long tbz branches.

    gcc/testsuite/
PR target/81643
* gcc.target/aarch64/long_branch_1.c: Improve testcase.

From-SVN: r251094

re PR target/79845 (rs6000: make code in rs6000.c more i18n-friendly)

[gcc]

2017-08-14  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

PR target/79845
* config/rs6000/linux64.h (INVALID_64BIT): Use quoted strings.
* config/rs6000/rs6000-c.c (altivec_resolve_overloaded_builtin):
Likewise.
* config/rs6000/rs6000.c (rs6000_init_hard_regno_mode_ok): Use
quoted strings, and make more translator-friendly.
(darwin_rs6000_override_options): Likewise.
(rs6000_option_override_internal): Likewise.
(rs6000_return_in_memory): Fix overlong line.
(init_cmulative_args): Use quoted strings, and make more
translator-friendly.
(rs6000_pass_by_reference): Fix overlong line.
(def_builtin): Use quoted strings.
(altivec_expand_predicate_builtin): Use quoted strings, and make
more translator-friendly.
(htm_expand_builtin): Use quoted strings.
(cpu_expand_builtin): Use quoted strings, and make more
translator-friendly.
(altivec_expand_builtin): Likewise.
(paired_expand_predicate_builtin): Likewise.
(rs6000_invalid_builtin): Likewise.
(builtin_function_type): Use quoted strings.
(rs6000_expand_split_stack_prologue): Use quoted strings, and make
more translator-friendly.
(rs6000_trampoline_init): Likewise.
(rs6000_handle_altivec_attribute): Likewise.
(rs6000_inner_target_options): Use quoted strings.
(rs6000_disable_incompatible_switches): Likewise.
* config/rs6000/sysv4.h (SUBTARGET_OVERRIDE_OPTIONS): Use quoted
strings, and make more translator-friendly.
(SUBSUBTARGET_OVERRIDE_OPTIONS): Use quoted strings.

[gcc/testsuite]

2017-08-14  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

PR target/79845
* g++.dg/ext/altivec-cell-5.C: Adjust diagnostic strings.
* gcc.target/powerpc/altivec-cell-5.c: Likewise.
* gcc.target/powerpc/bfp/scalar-cmp-exp-eq-2.c: Likewise.
* gcc.target/powerpc/bfp/scalar-cmp-exp-gt-2.c: Likewise.
* gcc.target/powerpc/bfp/scalar-cmp-exp-lt-2.c: Likewise.
* gcc.target/powerpc/bfp/scalar-cmp-exp-unordered-2.c: Likewise.
* gcc.target/powerpc/bfp/scalar-extract-exp-1.c: Likewise.
* gcc.target/powerpc/bfp/scalar-extract-exp-2.c: Likewise.
* gcc.target/powerpc/bfp/scalar-extract-exp-4.c: Likewise.
* gcc.target/powerpc/bfp/scalar-extract-exp-5.c: Likewise.
* gcc.target/powerpc/bfp/scalar-extract-sig-1.c: Likewise.
* gcc.target/powerpc/bfp/scalar-extract-sig-2.c: Likewise.
* gcc.target/powerpc/bfp/scalar-extract-sig-4.c: Likewise.
* gcc.target/powerpc/bfp/scalar-extract-sig-5.c: Likewise.
* gcc.target/powerpc/bfp/scalar-insert-exp-1.c: Likewise.
* gcc.target/powerpc/bfp/scalar-insert-exp-10.c: Likewise.
* gcc.target/powerpc/bfp/scalar-insert-exp-11.c: Likewise.
* gcc.target/powerpc/bfp/scalar-insert-exp-2.c: Likewise.
* gcc.target/powerpc/bfp/scalar-insert-exp-4.c: Likewise.
* gcc.target/powerpc/bfp/scalar-insert-exp-5.c: Likewise.
* gcc.target/powerpc/bfp/scalar-insert-exp-7.c: Likewise.
* gcc.target/powerpc/bfp/scalar-insert-exp-8.c: Likewise.
* gcc.target/powerpc/bfp/scalar-test-data-class-11.c: Likewise.
* gcc.target/powerpc/bfp/scalar-test-data-class-6.c: Likewise.
* gcc.target/powerpc/bfp/scalar-test-data-class-7.c: Likewise.
* gcc.target/powerpc/bfp/scalar-test-neg-2.c: Likewise.
* gcc.target/powerpc/bfp/scalar-test-neg-3.c: Likewise.
* gcc.target/powerpc/bfp/scalar-test-neg-5.c: Likewise.
* gcc.target/powerpc/bfp/vec-extract-exp-2.c: Likewise.
* gcc.target/powerpc/bfp/vec-extract-exp-3.c: Likewise.
* gcc.target/powerpc/bfp/vec-extract-sig-2.c: Likewise.
* gcc.target/powerpc/bfp/vec-extract-sig-3.c: Likewise.
* gcc.target/powerpc/bfp/vec-insert-exp-2.c: Likewise.
* gcc.target/powerpc/bfp/vec-insert-exp-3.c: Likewise.
* gcc.target/powerpc/bfp/vec-insert-exp-6.c: Likewise.
* gcc.target/powerpc/bfp/vec-insert-exp-7.c: Likewise.
* gcc.target/powerpc/bfp/vec-test-data-class-2.c: Likewise.
* gcc.target/powerpc/bfp/vec-test-data-class-3.c: Likewise.
* gcc.target/powerpc/byte-in-either-range-1.c: Likewise.
* gcc.target/powerpc/byte-in-range-1.c: Likewise.
* gcc.target/powerpc/byte-in-set-1.c: Likewise.
* gcc.target/powerpc/byte-in-set-2.c: Likewise.
* gcc.target/powerpc/cmpb-3.c: Likewise.
* gcc.target/powerpc/crypto-builtin-2.c: Likewise.
* gcc.target/powerpc/dfp/dtstsfi-1.c: Likewise.
* gcc.target/powerpc/dfp/dtstsfi-11.c: Likewise.
* gcc.target/powerpc/dfp/dtstsfi-16.c: Likewise.
* gcc.target/powerpc/dfp/dtstsfi-21.c: Likewise.
* gcc.target/powerpc/dfp/dtstsfi-26.c: Likewise.
* gcc.target/powerpc/dfp/dtstsfi-31.c: Likewise.
* gcc.target/powerpc/dfp/dtstsfi-36.c: Likewise.
* gcc.target/powerpc/dfp/dtstsfi-41.c: Likewise.
* gcc.target/powerpc/dfp/dtstsfi-46.c: Likewise.
* gcc.target/powerpc/dfp/dtstsfi-51.c: Likewise.
* gcc.target/powerpc/dfp/dtstsfi-56.c: Likewise.
* gcc.target/powerpc/dfp/dtstsfi-6.c: Likewise.
* gcc.target/powerpc/dfp/dtstsfi-61.c: Likewise.
* gcc.target/powerpc/dfp/dtstsfi-66.c: Likewise.
* gcc.target/powerpc/dfp/dtstsfi-71.c: Likewise.
* gcc.target/powerpc/dfp/dtstsfi-76.c: Likewise.
* gcc.target/powerpc/no-r11-3.c: Likewise.
* gcc.target/powerpc/pr80098-1.c: Likewise.
* gcc.target/powerpc/pr80098-2.c: Likewise.
* gcc.target/powerpc/pr80098-3.c: Likewise.
* gcc.target/powerpc/pr80098-4.c: Likewise.
* gcc.target/powerpc/vsu/vec-all-nez-7.c: Likewise.
* gcc.target/powerpc/vsu/vec-any-eqz-7.c: Likewise.
* gcc.target/powerpc/vsu/vec-cmpnez-7.c: Likewise.
* gcc.target/powerpc/vsu/vec-cntlz-lsbb-2.c: Likewise.
* gcc.target/powerpc/vsu/vec-cnttz-lsbb-2.c: Likewise.
* gcc.target/powerpc/vsu/vec-xl-len-12.c: Likewise.
* gcc.target/powerpc/vsu/vec-xl-len-13.c: Likewise.
* gcc.target/powerpc/vsu/vec-xlx-7.c: Likewise.
* gcc.target/powerpc/vsu/vec-xrx-7.c: Likewise.
* gcc.target/powerpc/vsu/vec-xst-len-12.c: Likewise.
* gcc.target/powerpc/vsu/vec-xst-len-13.c: Likewise.

From-SVN: r251092

re PR tree-optimization/81799 (ICE on valid code at -O3: verify_gimple failed)

PR tree-optimization/81799
* tree-loop-distribution.c (version_loop_by_alias_check): Force
cond_expr to simple gimple operand.

gcc/testsuite
* gcc.dg/tree-ssa/pr81799.c: New.

From-SVN: r251088

Add check_effective_target_autoincdec.

Add check_effective_target_autoincdec that returns true if a target
runs the auto_inc_dec optimization pass.

    gcc/
* doc/sourcebuild.texi (autoincdec): Add autoincdec description.

    gcc/testsuite/
PR middle-end/46932
* gcc.dg/pr46932.c: Use dg-require-effective-target autoincdec.
* lib/target-supports.exp: Add check_effective_target_autoincdec.

From-SVN: r251087

[AArch64] Fix dbl_mov_immediate_1.c test

gcc/testsuite:

* gcc.target/aarch64/dbl_mov_immediate_1.c: Add
-mno-pc-relative-literal-loads.

From-SVN: r251086

re PR target/81754 (Building of cross compiler avr-elf is broken)

gcc/
PR target/81754
PR target/81268
* config/avr/avr.opt (mgas-isr-prologues): New Var
avr_gasisr_prologues.
* config/avr/avr.md (gasisr, *gasisr): Use it instead of
TARGET_GASISR_PROLOGUES.
* config/avr/avr.c (avr_option_override): Same.
(avr_pass_pre_proep::execute): Same.

From-SVN: r251085

Daily bump.

From-SVN: r251080

i386: Replace frame pointer with stack pointer in debug insns

When we eliminate frame pointer, we should also replace frame pointer
with stack pointer - UNITS_PER_WORD in debug insns.  This patch fixed:

FAIL: gcc.dg/guality/pr58791-5.c   -Os  line pr58791-5.c:20 b1 == 9
FAIL: gcc.dg/guality/pr58791-5.c   -Os  line pr58791-5.c:20 b2 == 73
FAIL: gcc.dg/guality/pr58791-5.c   -Os  line pr58791-5.c:20 b3 == 585
FAIL: gcc.dg/guality/pr58791-5.c   -Os  line pr58791-5.c:20 b4 == 4681
FAIL: gcc.dg/guality/pr59776.c   -Os  line pr59776.c:17 s1.f == 5.0
FAIL: gcc.dg/guality/pr59776.c   -Os  line pr59776.c:17 s1.g == 6.0
FAIL: gcc.dg/guality/pr59776.c   -Os  line pr59776.c:17 s2.g == 6.0
FAIL: gcc.dg/guality/pr59776.c   -Os  line pr59776.c:20 s1.f == 5.0
FAIL: gcc.dg/guality/pr59776.c   -Os  line pr59776.c:20 s1.g == 6.0
FAIL: gcc.dg/guality/pr59776.c   -Os  line pr59776.c:20 s2.f == 5.0
FAIL: gcc.dg/guality/pr59776.c   -Os  line pr59776.c:20 s2.g == 6.0

on Linux/i386.

PR target/81820
* config/i386/i386.c (ix86_finalize_stack_frame_flags): Replace
frame pointer with stack pointer - UNITS_PER_WORD in debug insns.

From-SVN: r251076

i386.md (*load_tp_<mode>): Redefine as define_insn_and_split.

* config/i386/i386.md (*load_tp_<mode>): Redefine as
define_insn_and_split.  Split to a memory load from 0 in
DEFAULT_TLS_SEG_REG address space.  Merge with *load_tp_x32
using PTR mode iterator.
(*load_tp_x32_zext"): Redefine as define_insn_and_split.
Split to a memory load from 0 in DEFAULT_TLS_SEG_REG address space.
(*add_tp_<mode>): Redefine as define_insn_and_split.
Split to an add with a memory load from 0 in DEFAULT_TLS_SEG_REG
address space.  Merge with *add_tp_x32 using PTR mode iterator.
(*add_tp_x32_zext"): Redefine as define_insn_and_split.
Split to an add with a  memory load from 0 in
DEFAULT_TLS_SEG_REG address space.

From-SVN: r251075

gfortran.texi: Document format of unformatted sequential files.

2017-08-13  Thomas Koenig  <tkoenig@gcc.gnu.org>

* gfortran.texi: Document format of unformatted sequential files.

From-SVN: r251074

aarch64-option-extensions.def (rdma): Fix feature string to what Linux prints out in /proc/cpuinfo.

2017-08-12  Andrew Pinski  <apinski@cavium.com>

        * config/aarch64/aarch64-option-extensions.def (rdma):
        Fix feature string to what Linux prints out in /proc/cpuinfo.

From-SVN: r251073

Daily bump.

From-SVN: r251072

Require -static support in gcc.dg/pie-static-[12].c (PR testsuite/81793)

PR testsuite/81793
* gcc.dg/pie-static-1.c: Require both static and pie support.
* gcc.dg/pie-static-2.c: Likewise.

From-SVN: r251067

[PR79542][Ada] Fix ICE in dwarf2out.c with nested func. inlining

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79542 reports an ICE in
dwarf2out.c for an Ada testcase built with optimization.

This crash happens during the late generation pass because
add_gnat_descriptive_type cannot find the type DIE corresponding to some
descriptive type after having tried to generate it. This is because the
DIE was generated during the early generation pass, but then pruned by
the type pruning machinery. So why was it pruned?

We are in a situation where we have cloned types (because of inlining,
IIUC) whose TYPE_NAME have non-null DECL_ABSTRACT_ORIGIN attributes. As
a consequence:

  * In modified_type_die, the "handle C typedef types" part calls
    gen_type_die on the cloned type.

  * gen_type_die matches a typedef variant, and then calls gen_decl_die
    on its TYPE_NAME, which will end up calling gen_typedef_die.

  * gen_typedef_die checks decl_ultimate_origin for this TYPE_DECL, and
    finds one, so it only adds a DW_AT_abstract_origin attribute to the
    DW_TAG_typedef DIE, but the cloned type itself does not get its own
    DIE.

  * Back in modified_type_die, the call to lookup_type_die on the type
    passed to gen_type_die returns NULL.

In the end, whole type trees, i.e. the ones referenced by
DECL_ABSTRACT_ORIGIN attributes, are never referenced from type pruning
"roots" and are thus pruned. The descriptive type at stake here is one
of them, hence the assertion failure.

This patch attemps to fix that with what seems to be the most sensible
thing to do in my opinion: updating the "handle C typedef types" part in
modified_type_die to check decl_ultimate_origin before calling
gen_type_die: if that function returns something not null, then we know
that gen_type_die/gen_typedef_die will not generate a DIE for the input
type, so we try to process the ultimate origin instead. It also updates
in a similar way gen_type_die_with_usage, assert that when
gen_typedef_die is called on nodes that have an ultimate origin, this
origin is themselves.

gcc/
PR ada/79542
* dwarf2out.c (modified_type_die): For C typedef types that have
an ultimate origin, process the ultimate origin instead of the
input type.
(gen_typedef_die): Assert that input DECLs have no ultimate
origin.
(gen_type_die_with_usage): For typedef variants that have an
ultimate origin, just call gen_decl_die on the original DECL.
(process_scope_var): Avoid creating DIEs for local typedefs and
concrete static variables.

gcc/testsuite/

PR ada/79542
* gnat.dg/debug13.ads, gnat.dg/debug13.adb: New testcase.

From-SVN: r251066

[RS6000] linux startfile/endfile

These need to match the gnu-user.h definitions to support
--enable-default-pie.  Otherwise we end up linking the wrong startup
files when defaulting to PIE.

PR target/81170
PR target/81295
* config/rs6000/sysv4.h (STARTFILE_LINUX_SPEC): Upgrade to
match gnu-user.h startfile.
(ENDFILE_LINUX_SPEC): Similarly.

From-SVN: r251065

Daily bump.

From-SVN: r251064

re PR c/81795 (Stray "originally defined here" when using -Wc++-compat with #pragma GCC diagnostic push/pop)

PR c/81795
* c-decl.c (pushtag): Only print inform if the warning was printed.
(grokdeclarator): Likewise.

* gcc.dg/pr81795.c: New test.

From-SVN: r251056

invoke.texi: Actually commit change about -Ofast.

2017-08-11  Thomas Koenig  <tkoenig@gcc.gnu.org>

* invoke.texi:  Actually commit change about -Ofast.

From-SVN: r251055

re PR fortran/60355 ([F08] constraint C519 for BIND attribute not enforced)

2017-08-11  Thomas Koenig  <tkoenig@gcc.gnu.org>

PR fortran/60355
* resolve.c (resolve_symbol): Adjust (and reformat)
comment.  Perform check if a BIND(C) is declared
at module level regardless of whether it is typed
implicitly or not.

2017-08-11  Thomas Koenig  <tkoenig@gcc.gnu.org>

PR fortran/60355
* gfortran.dg (bind_c_usage_30): New test.

From-SVN: r251054

[PR lto/81430] Revert "Add nvptx_override_options_after_change"

This reverts r250421; properly fixed by r250852.

PR lto/81430
* config/nvptx/nvptx.c (nvptx_override_options_after_change):
Remove function.
(TARGET_OVERRIDE_OPTIONS_AFTER_CHANGE): Remove definition.

From-SVN: r251053

Correct invalid ChangeLog entry

From-SVN: r251052

aarch64.md (mov<mode>): Change.

2017-08-11  Tamar Christina  <tamar.christina@arm.com>
* config/aarch64/aarch64.md (mov<mode>): Change.
(*movhf_aarch64, *movsf_aarch64, *movdf_aarch64):
aarch64_reg_or_fp_float into aarch64_reg_or_fp_zero.
* config/aarch64/predicates.md (aarch64_reg_or_fp_float): Removed.

From-SVN: r251051

tree-sra.c (build_access_from_expr_1): Use more precise diagnostics for storage order barriers.

* tree-sra.c (build_access_from_expr_1): Use more precise diagnostics
for storage order barriers.

From-SVN: r251050

Do not instrument void variables with MPX (PR tree-opt/79987).

2017-08-11  Martin Liska  <mliska@suse.cz>

PR tree-opt/79987
* tree-chkp.c (chkp_get_bounds_for_decl_addr): Do not instrument
variables of void type.
2017-08-11  Martin Liska  <mliska@suse.cz>

PR tree-opt/79987
* gcc.target/i386/mpx/pr79987.c: New test.

From-SVN: r251049

Introduce TARGET_SUPPORTS_ALIASES

2017-08-11  Martin Liska  <mliska@suse.cz>

* c-opts.c (c_common_post_options): Replace ASM_OUTPUT_DEF with
TARGET_SUPPORTS_ALIASES.
2017-08-11  Martin Liska  <mliska@suse.cz>

* asan.c (asan_protect_global): Replace ASM_OUTPUT_DEF with
TARGET_SUPPORTS_ALIASES.
* cgraph.c (cgraph_node::create_same_body_alias): Likewise.
* ipa-visibility.c (can_replace_by_local_alias): Likewise.
(optimize_weakref): Likewise.
* symtab.c (symtab_node::noninterposable_alias): Likewise.
* varpool.c (varpool_node::create_extra_name_alias): Likewise.
* defaults.h: Introduce TARGET_SUPPORTS_ALIASES.
2017-08-11  Martin Liska  <mliska@suse.cz>

* decl2.c (get_tls_init_fn): Replace ASM_OUTPUT_DEF with
TARGET_SUPPORTS_ALIASES.
(handle_tls_init): Likewise.
(note_mangling_alias): Likewise.  Remove ATTRIBUTE_UNUSED for
both arguments.
* optimize.c (can_alias_cdtor): Likewise.

From-SVN: r251048

Fix ifunc and resolver (PR ipa/81213).

2017-08-11  Martin Liska  <mliska@suse.cz>

PR ipa/81213
* config/i386/i386.c (make_resolver_func): Do complete
refactoring of the function.
2017-08-11  Martin Liska  <mliska@suse.cz>

PR ipa/81213
* gcc.target/i386/pr81213.c: New test.

From-SVN: r251047

PR c++/81671 - nullptr_t template parameter

* pt.c (convert_nontype_argument): Fix nullptr_t check.

From-SVN: r251046

Daily bump.

From-SVN: r251045

PR libstdc++/81808 skip test if reading directory doesn't fail

PR libstdc++/81808
* testsuite/27_io/basic_fstream/53984.cc: Adjust test for targets
that allow opening a directory as a FILE and reading from it.

From-SVN: r251041

re PR target/81708 (The x86 stack canary location should be customizable)

PR target/81708
* config/i386/i386.opt (mstack-protector-guard-symbol=): New option
* config/i386/i386.c (ix86_stack_protect_guard): Use
ix86_stack_protect_guard_symbol_str to generate varible declaration.
* doc/invoke.texi (x86 Options): Document
-mstack-protector-guard-symbol= option.

testsuite/ChangeLog:

PR target/81708
* gcc.target/i386/stack-prot-sym.c: New test.

From-SVN: r251040

Rename ix86_split_stack_boundary to ix86_split_stack_guard.

From-SVN: r251039

PR81738: Split vect-alias-check-6.c

The second loop in the testcase only vectorises if we can reverse
a vector and if aligned loads aren't required.

2017-08-10  Richard Sandiford  <richard.sandiford@linaro.org>

gcc/testsuite/
PR testsuite/81738
* gcc.dg/vect/vect-alias-check-6.c: Move second function to...
* gcc.dg/vect/vect-alias-check-7.c: ...this new file.  Require
vect_perm and vect_element_align for vectorization.

From-SVN: r251037

PR c++/81359 - Unparsed NSDMI error from SFINAE context.

* method.c (synthesized_method_walk): Don't diagnose lack of
operator delete.

From-SVN: r251036

PR c++/80452 - Core 1579, implicit move semantics on return/throw

* cp-tree.h (LOOKUP_PREFER_RVALUE): Now means that we've already
tentatively changed the lvalue to an rvalue.
* call.c (reference_binding): Remove LOOKUP_PREFER_RVALUE handling.
(build_over_call): If LOOKUP_PREFER_RVALUE, check that the first
parameter is an rvalue reference.
* except.c (build_throw): Do maybe-rvalue overload resolution twice.
* typeck.c (check_return_expr): Likewise.

From-SVN: r251035

* config/i386/i386.c (ix86_split_stack_boundary): Add comment.

From-SVN: r251033

i386-protos.h (ix86_split_stack_boundary): New prototype.

* config/i386/i386-protos.h (ix86_split_stack_boundary): New prototype.
* config/i386/i386.c (ix86_split_stack_boundary): New function.
(ix86_xpand_split_stack_prologue): Call ix86_split_stack_boundary.
(ix86_legitimate_address_p) <case UNSPEC_STACK_CHECK>: Remove.
(i386_asm_output_addr_const_extra) <case UNSPEC_STACK_CHECK>: Ditto.
(optput_pic_addr_const): Remove UNSPEC_STACK_CHECK handling.
* config/i386/i386.md (unspec): Remove UNSPEC_STACK_CHECK.
(split_stack_space_check): Call ix86_split_stack_boundary.

From-SVN: r251031

print-tree.c (print_node): Print location using the established format %s:%i%i.

gcc/ChangeLog:

* print-tree.c (print_node): Print location using the established
format %s:%i%i.
Replace spaces with colons.
(debug_raw, debug): Ditto.

From-SVN: r251030

PR c++/81586 - valgrind error in output_buffer_append_r with -Wall

gcc/ChangeLog:

PR c++/81586
* pretty-print.c (pp_format): Correct the handling of %s precision.

From-SVN: r251029

i386: Don't use frame pointer without stack access

When there is no stack access, there is no need to use frame pointer
even if -fno-omit-frame-pointer is used and caller's frame pointer is
unchanged.

gcc/

PR target/81736
* config/i386/i386.c (ix86_finalize_stack_realign_flags): Renamed
to ...
(ix86_finalize_stack_frame_flags): This.  Also clear
frame_pointer_needed if -fno-omit-frame-pointer is used without
stack access.
(ix86_expand_prologue): Replace ix86_finalize_stack_realign_flags
with ix86_finalize_stack_frame_flags.
(ix86_expand_epilogue): Likewise.
(ix86_expand_split_stack_prologue): Likewise.
* doc/invoke.texi: Add a note for -fno-omit-frame-pointer.

gcc/testsuite/

PR target/81736
* gcc.target/i386/pr81736-1.c: New test.
* gcc.target/i386/pr81736-2.c: Likewise.
* gcc.target/i386/pr81736-3.c: Likewise.
* gcc.target/i386/pr81736-4.c: Likewise.
* gcc.target/i386/pr81736-5.c: Likewise.
* gcc.target/i386/pr81736-6.c: Likewise.
* gcc.target/i386/pr81736-7.c: Likewise.

From-SVN: r251028

fold-vec-msum-short.c: Fix typo.

[gcc/testsuite]

2017-08-10  Will Schmidt  <will_schmidt@vnet.ibm.com>

        * gcc.target/powerpc/fold-vec-msum-short.c: Fix typo.
        * gcc.target/powerpc/fold-vec/pack-longlong.c: Mark for 64-bit only.

From-SVN: r251027

C/C++: show pertinent open token when missing a close token

gcc/c/ChangeLog:
* c-parser.c (c_parser_error): Rename to...
(c_parser_error_richloc): ...this, making static, and adding
"richloc" parameter, passing it to the c_parse_error call,
rather than calling c_parser_set_source_position_from_token.
(c_parser_error): Reintroduce, reimplementing in terms of the
above, converting return type from void to bool.
(class token_pair): New class.
(struct matching_paren_traits): New struct.
(matching_parens): New typedef.
(struct matching_brace_traits): New struct.
(matching_braces): New typedef.
(get_matching_symbol): New function.
(c_parser_require): Add param MATCHING_LOCATION, using it to
highlight matching "opening" tokens for missing "closing" tokens.
(c_parser_skip_until_found): Likewise.
(c_parser_static_assert_declaration_no_semi): Convert explicit
parsing of CPP_OPEN_PAREN and CPP_CLOSE_PAREN to use of
class matching_parens, so that the pertinent open parenthesis is
highlighted when there are problems locating the close
parenthesis.
(c_parser_struct_or_union_specifier): Likewise.
(c_parser_typeof_specifier): Likewise.
(c_parser_alignas_specifier): Likewise.
(c_parser_simple_asm_expr): Likewise.
(c_parser_braced_init): Likewise, for matching_braces.
(c_parser_paren_condition): Likewise, for matching_parens.
(c_parser_switch_statement): Likewise.
(c_parser_for_statement): Likewise.
(c_parser_asm_statement): Likewise.
(c_parser_asm_operands): Likewise.
(c_parser_cast_expression): Likewise.
(c_parser_sizeof_expression): Likewise.
(c_parser_alignof_expression): Likewise.
(c_parser_generic_selection): Likewise.
(c_parser_postfix_expression): Likewise for cases RID_VA_ARG,
RID_OFFSETOF, RID_TYPES_COMPATIBLE_P, RID_AT_SELECTOR,
RID_AT_PROTOCOL, RID_AT_ENCODE, reindenting as necessary.
In case CPP_OPEN_PAREN, pass loc_open_paren to the
c_parser_skip_until_found call.
(c_parser_objc_class_definition): Use class matching_parens as
above.
(c_parser_objc_method_decl): Likewise.
(c_parser_objc_try_catch_finally_statement): Likewise.
(c_parser_objc_synchronized_statement): Likewise.
(c_parser_objc_at_property_declaration): Likewise.
(c_parser_oacc_wait_list): Likewise.
(c_parser_omp_var_list_parens): Likewise.
(c_parser_omp_clause_collapse): Likewise.
(c_parser_omp_clause_default): Likewise.
(c_parser_omp_clause_if): Likewise.
(c_parser_omp_clause_num_threads): Likewise.
(c_parser_omp_clause_num_tasks): Likewise.
(c_parser_omp_clause_grainsize): Likewise.
(c_parser_omp_clause_priority): Likewise.
(c_parser_omp_clause_hint): Likewise.
(c_parser_omp_clause_defaultmap): Likewise.
(c_parser_oacc_single_int_clause): Likewise.
(c_parser_omp_clause_ordered): Likewise.
(c_parser_omp_clause_reduction): Likewise.
(c_parser_omp_clause_schedule): Likewise.
(c_parser_omp_clause_num_teams): Likewise.
(c_parser_omp_clause_thread_limit): Likewise.
(c_parser_omp_clause_aligned): Likewise.
(c_parser_omp_clause_linear): Likewise.
(c_parser_omp_clause_safelen): Likewise.
(c_parser_omp_clause_simdlen): Likewise.
(c_parser_omp_clause_depend): Likewise.
(c_parser_omp_clause_map): Likewise.
(c_parser_omp_clause_device): Likewise.
(c_parser_omp_clause_dist_schedule): Likewise.
(c_parser_omp_clause_proc_bind): Likewise.
(c_parser_omp_clause_uniform): Likewise.
(c_parser_omp_for_loop): Likewise.
(c_parser_cilk_clause_vectorlength): Likewise.
(c_parser_cilk_clause_linear): Likewise.
(c_parser_transaction_expression): Likewise.
* c-parser.h (c_parser_require): Add param matching_location with
default UNKNOWN_LOCATION.
(c_parser_error): Convert return type from void to bool.
(c_parser_skip_until_found): Add param matching_location with
default UNKNOWN_LOCATION.

gcc/c-family/ChangeLog:
* c-common.c (c_parse_error): Add rich_location * param, using it
rather implicitly using input_location.
* c-common.h (c_parse_error): Add rich_location * param.

gcc/cp/ChangeLog:
* parser.c (cp_parser_error): Update for new param to
c_parse_error.
(class token_pair): New class.
(struct matching_paren_traits): New struct.
(matching_parens): New typedef.
(struct matching_brace_traits): New struct.
(matching_braces): New typedef.
(cp_parser_statement_expr): Convert explicit parsing of
CPP_OPEN_PAREN and CPP_CLOSE_PAREN to use of
class matching_parens, so that the pertinent open parenthesis is
highlighted when there are problems locating the close
parenthesis.
(cp_parser_primary_expression): Likewise.
(cp_parser_compound_literal_p): Remove consumption of opening
paren.
(cp_parser_postfix_expression): Convert explicit parsing of
CPP_OPEN_PAREN and CPP_CLOSE_PAREN to use matching parens, as
above.  Use it to consume the opening paren previously consumed by
cp_parser_compound_literal_p.
(cp_parser_parenthesized_expression_list): Likewise.
(cp_parser_unary_expression): Likewise.
(cp_parser_new_expression): Likewise.
(cp_parser_cast_expression): Likewise.
(cp_parser_builtin_offsetof): Likewise.
(cp_parser_trait_expr): Likewise.
(cp_parser_lambda_declarator_opt): Likewise.
(cp_parser_lambda_body): Likewise, for matching_braces.
(cp_parser_compound_statement): Likewise.
(cp_parser_selection_statement): Likewise, for matching_parens.
(cp_parser_iteration_statement): Likewise.
(cp_parser_already_scoped_statement): Likewise, for
matching_braces.
(cp_parser_linkage_specification): Likewise.
(cp_parser_static_assert): Likewise, for matching_parens.
(cp_parser_decltype): Likewise.
(cp_parser_operator): Likewise.
(cp_parser_enum_specifier): Likewise.
(cp_parser_namespace_definition): Likewise.
(cp_parser_direct_declarator): Likewise.
(cp_parser_braced_list): Likewise.
(cp_parser_class_specifier_1): Likewise, for matching_braces.
(cp_parser_constant_initializer): Likewise.
(cp_parser_noexcept_specification_opt): Likewise, for
matching_parens.
(cp_parser_exception_specification_opt): Likewise.
(cp_parser_handler): Likewise.
(cp_parser_asm_specification_opt): Likewise.
(cp_parser_asm_operand_list): Likewise.
(cp_parser_gnu_attributes_opt): Likewise.
(cp_parser_std_attribute_spec): Likewise.
(cp_parser_requirement_parameter_list): Likewise.
(cp_parser_requirement_body): Likewise, for matching_braces.
(cp_parser_compound_requirement): Likewise.
(cp_parser_template_introduction): Likewise.
(cp_parser_sizeof_pack): Likewise, for matching_parens.
(cp_parser_sizeof_operand): Likewise; use it to consume the
opening paren previously consumed by cp_parser_compound_literal_p.
(get_matching_symbol): New function.
(cp_parser_required_error): Add param "matching_location".  Remove
calls to cp_parser_error, instead setting a non-NULL gmsgid, and
handling it if set by calling c_parse_error, potentially with a
secondary location if matching_location was set.
(cp_parser_require): Add param "matching_location", with a default
value of UNKNOWN_LOCATION.
(cp_parser_require_keyword): Update for new param of
cp_parser_required_error.
(cp_parser_objc_encode_expression): Update to class matching_parens
as above.
(cp_parser_objc_defs_expression): Likewise.
(cp_parser_objc_protocol_expression): Likewise.
(cp_parser_objc_selector_expression): Likewise.
(cp_parser_objc_typename): Likewise.
(cp_parser_objc_superclass_or_category): Likewise.
(cp_parser_objc_try_catch_finally_statement): Likewise.
(cp_parser_objc_synchronized_statement): Likewise.
(cp_parser_objc_at_property_declaration): Likewise.
(cp_parser_oacc_single_int_clause): Likewise.
(cp_parser_oacc_shape_clause): Likewise.
(cp_parser_omp_clause_collapse): Likewise.
(cp_parser_omp_clause_default): Likewise.
(cp_parser_omp_clause_final): Likewise.
(cp_parser_omp_clause_if): Likewise.
(cp_parser_omp_clause_num_threads): Likewise.
(cp_parser_omp_clause_num_tasks): Likewise.
(cp_parser_omp_clause_grainsize): Likewise.
(cp_parser_omp_clause_priority): Likewise.
(cp_parser_omp_clause_hint): Likewise.
(cp_parser_omp_clause_defaultmap): Likewise.
(cp_parser_omp_clause_ordered): Likewise.
(cp_parser_omp_clause_schedule): Likewise.
(cp_parser_omp_clause_num_teams): Likewise.
(cp_parser_omp_clause_thread_limit): Likewise.
(cp_parser_omp_clause_aligned): Likewise.
(cp_parser_omp_clause_linear): Likewise.
(cp_parser_omp_clause_safelen): Likewise.
(cp_parser_omp_clause_simdlen): Likewise.
(cp_parser_omp_clause_depend): Likewise.
(cp_parser_omp_clause_device): Likewise.
(cp_parser_omp_clause_dist_schedule): Likewise.
(cp_parser_oacc_clause_async): Likewise.
(cp_parser_omp_critical): Likewise.
(cp_parser_omp_for_loop): Likewise.
(cp_parser_omp_sections_scope): Likewise.
(cp_parser_omp_declare_reduction_exprs): Likewise.
Update for new param to cp_parser_required_error.
(cp_parser_oacc_routine): Likewise.
(cp_parser_transaction_expression): Likewise.
(cp_parser_cilk_simd_vectorlength): Likewise.

gcc/testsuite/ChangeLog:
* c-c++-common/missing-close-symbol.c: New test case.
* c-c++-common/missing-symbol.c: New test case.
* gcc.dg/unclosed-init.c: New test case.
* g++.dg/diagnostic/unclosed-extern-c.C: New test case.
* g++.dg/diagnostic/unclosed-function.C: New test case.
* g++.dg/diagnostic/unclosed-namespace.C: New test case.
* g++.dg/diagnostic/unclosed-struct.C: New test case.
* g++.dg/parse/pragma2.C: Update to reflect movement of the
"expected identifier" error.

From-SVN: r251026

options.c (set_dec_flags): Only set legacy standards when value is not zero.

2017-08-10  Fritz Reese <fritzoreese@gmail.com>

    gcc/fortran/ChangeLog:

* options.c (set_dec_flags): Only set legacy standards when value
is not zero.

From-SVN: r251025

options.c (set_dec_flags, [...]): Only set flag_d_lines with -fdec when not set by user.

2017-08-10  Fritz Reese <Reese-Fritz@zai.com>

    gcc/fortran/ChangeLog:

* options.c (set_dec_flags, gfc_post_options): Only set flag_d_lines
with -fdec when not set by user.

    gcc/testsuite/ChangeLog:

    gfortran.dg/
* dec_d_lines_1.f, dec_d_lines_2.f: New.

From-SVN: r251024

decl.c (attr_seen): New static variable.

2017-08-10  Fritz Reese <Reese-Fritz@zai.com>

    gcc/fortran/ChangeLog:

* decl.c (attr_seen): New static variable.
* decl.c (variable_decl): Match %FILL in STRUCTURE body.
* gfortran.texi: Update documentation.

    gcc/testsuite/ChangeLog:

    gfortran.dg/
* dec_structure_18.f90, dec_structure_19.f90, dec_structure_20.f90,
dec_structure_21.f90: New.

From-SVN: r251023

* objc.dg/proto-lossage-4.m: Accept int/long int as intptr_t.

From-SVN: r251022

re PR testsuite/81784 (gcc.dg/compare2.c fails starting with r250984)

PR testsuite/81784
* gcc.dg/compare2.c: Update dg-bogus and dg-warning.

From-SVN: r251021

Fix target attribute handling (PR c++/81355).

2017-08-10  Martin Liska  <mliska@suse.cz>

PR c++/81355
* c-attribs.c (handle_target_attribute):
Report warning for an empty string argument of target attribute.
2017-08-10  Martin Liska  <mliska@suse.cz>

PR c++/81355
* g++.dg/other/pr81355.C: New test.

From-SVN: r251020

re PR c/81687 (Compiler drops label in OpenMP region)

PR c/81687
* omp-low.c (omp_copy_decl): Don't remap FORCED_LABEL or DECL_NONLOCAL
LABEL_DECLs.
* tree-cfg.c (move_stmt_op): Don't adjust DECL_CONTEXT of FORCED_LABEL
or DECL_NONLOCAL labels.
(move_stmt_r) <case GIMPLE_LABEL>: Adjust DECL_CONTEXT of FORCED_LABEL
or DECL_NONLOCAL labels here.

* testsuite/libgomp.c/pr81687-1.c: New test.
* testsuite/libgomp.c/pr81687-2.c: New test.

From-SVN: r251019

jit: add gcc_jit_type_get_vector

gcc/jit/ChangeLog:
* docs/cp/topics/types.rst (Vector types): New section.
* docs/topics/compatibility.rst (LIBGCCJIT_ABI_8): New tag.
* docs/topics/types.rst (gcc_jit_context_get_type): Fix typo in
example.
(Vector types): New section.
* docs/_build/texinfo/libgccjit.texi: Regenerate.
* jit-playback.c (gcc::jit::playback::type::get_vector): New
method.
* jit-playback.h (gcc::jit::playback::type::get_vector): New
method.
* jit-recording.c: In namespace gcc::jit::recording::
(type::get_vector): New method.
(memento_of_get_aligned::write_reproducer): Fix typo
in leading comment.
(memento_of_get_vector::replay_into): New method.
(memento_of_get_vector::make_debug_string): New method.
(memento_of_get_vector::write_reproducer): New method.
* jit-recording.h: In namespace gcc::jit::recording::
(type::get_vector): New
 method.
(class memento_of_get_vector): New class.
* libgccjit++.h (gccjit::type::get_vector): New method.
* libgccjit.c (gcc_jit_type_get_vector): New public entrypoint.
* libgccjit.h (LIBGCCJIT_HAVE_gcc_jit_type_get_vector): New
define.
(gcc_jit_type_get_vector): New decl.
* libgccjit.map (LIBGCCJIT_ABI_8): New ABI tag.

gcc/testsuite/ChangeLog:
* jit.dg/all-non-failing-tests.h: Add note about
test-vector-types.cc.
* jit.dg/test-error-gcc_jit_type_get_vector-bad-type.c: New test
case.
* jit.dg/test-error-gcc_jit_type_get_vector-non-power-of-two.c:
New test case.
* jit.dg/test-vector-types.cc: New test case.

From-SVN: r251018

Daily bump.

From-SVN: r251017

vect-xorsign_exec.c: Add --save-temps to the options passed.

2017-08-09  Andrew Pinski  <apinski@cavium.com>

        * gcc.target/aarch64/vect-xorsign_exec.c: Add
        --save-temps to the options passed.

From-SVN: r251013

This time with the file added.

Testcase for PR81423

gcc/testsuite/
PR rtl-optimization/81423
* gcc.c-torture/execute/pr81423.c: New testcase.

From-SVN: r251011

packed8.C: Remove -mstructure-size- boundary option and fix comment.

2017-08-09  Michael Collison  <michael.collison@arm.com>

* testsuite/g++.dg/ext/packed8.C: Remove -mstructure-size-
boundary option and fix comment.
* testsuite/g++.dg/init/array16.C: Remove -mstructure-size-
boundary option and fix comment.
* testsuite/g++.dg/other/crash-4.C: Remove -mstructure-size-
boundary option and fix comment.
* testsuite/gcc.dg/builtin-stringop-chk-1.c: Remove
-mstructure-size boundary option.

From-SVN: r251010

Fix test for __has_unique_object_representations support in Clang

* include/std/type_traits (_GLIBCXX_NO_BUILTIN_HAS_UNIQ_OBJ_REP):
Replace with _GLIBCXX_HAVE_BUILTIN_HAS_UNIQ_OBJ_REP and use
__is_identifier to set it.

From-SVN: r251009

Fix test for __is_aggregate support in Clang

2017-08-09  Katsuhiko Nishimra  <ktns.87@gmail.com>

* include/std/type_traits (_GLIBCXX_HAVE_BUILTIN_IS_AGGREGATE): Use
__is_identifier instead of __has_builtin.

From-SVN: r251008

rs6000.c (rs6000_option_override_internal): Add blurb to indicate when early gimple folding has been disabled.

[gcc]

        2017-08-09  Will Schmidt  <will_schmidt@vnet.ibm.com>

        * config/rs6000/rs6000.c (rs6000_option_override_internal): Add blurb
        to indicate when early gimple folding has been disabled.
        (rs6000_gimple_fold_builtin): Add debug content.
        (rs6000_invalid_builtin): Fix whitespace.
        (rs6000_expand_builtin): Fix whitespace.
        * config/rs6000/rs6000.opt: Add option for -mfold-gimple.

From-SVN: r251007

compiler: fix buglet in lshift type determination

    It's possible to construct an lshift expression using unsafe.Sizeof
    that is technically a compile-time constant but can't be evaluated
    without going through backend methods. In this case, insure that
    Type::make_non_abstract_type is called on the numeric operand of the
    shift (as opposed to leaving as abstract), to avoid an assert later on
    in the compiler flow.

    Fixes golang/go#21372.

    Reviewed-on: https://go-review.googlesource.com/54370

From-SVN: r251006

rs6000: Use SAVE_MULTIPLE only if we restore what it saves (PR80938)

We can have SAVE_MULTIPLE while we do not have REST_MULTIPLE.  If the
inline restore does not restore all registers, the CFI for the save
and restore can conflict if things are shrink-wrapped.

We could restore all registers that are saved (not ideal), or emit
the CFI notes to say we did (which will work fine, but is also not
so great); instead, let's not save the registers that are unused.

PR target/80938
* config/rs6000/rs6000.c (rs6000_savres_strategy): Don't use
SAVE_MULTIPLE if not all the registers that saves, should be saved.

From-SVN: r251005

Testcase for PR81423

gcc/testsuite/
PR rtl-optimization/81423
* gcc.c-torture/execute/pr81423.c: New testcase.

From-SVN: r251004

Add falkor pipeline description.

gcc/
* config/aarch64/aarch64-cores.def (falkor): Use falkor pipeline.
(qdf24xx): Likewise.
* config/aarch64/aarch64.md: Include falkor.md.
* config/aarch64/falkor.md: New.

From-SVN: r251003

PR c++/81525 - wrong constant value with generic lambda

* pt.c (tsubst_decl) [VAR_DECL]: Avoid clobbering auto.
(tsubst_copy) [VAR_DECL]: Handle auto.

From-SVN: r250999

fold-vec-pack-double.c: New.

[gcc/testsuite]

2017-08-09  Will Schmidt  <will_schmidt@vnet.ibm.com>

* gcc.target/powerpc/fold-vec-pack-double.c: New.
* gcc.target/powerpc/fold-vec-pack-int.c: New.
* gcc.target/powerpc/fold-vec-pack-longlong.c: New.
* gcc.target/powerpc/fold-vec-pack-short.c: New.

From-SVN: r250998

fold-vec-msum-char.c: New.

[gcc/testsuite]

2017-08-09  Will Schmidt  <will_schmidt@vnet.ibm.com>

* gcc.target/powerpc/fold-vec-msum-char.c: New.
* gcc.target/powerpc/fold-vec-msum-short.c: New.

From-SVN: r250997

fold-vec-madd-double.c: New.

[gcc/testsuite]

2017-08-09  Will Schmidt  <will_schmidt@vnet.ibm.com>

* gcc.target/powerpc/fold-vec-madd-double.c: New.
* gcc.target/powerpc/fold-vec-madd-float.c: New.
* gcc.target/powerpc/fold-vec-madd-short.c: New.

From-SVN: r250996

fold-vec-cntlz-int.c: New.

2017-08-09  Will Schmidt  <will_schmidt@vnet.ibm.com>

* gcc.target/powerpc/fold-vec-cntlz-int.c: New.
* gcc.target/powerpc/fold-vec-cntlz-char.c: New.
* gcc.target/powerpc/fold-vec-cntlz-short.c: New.
* gcc.target/powerpc/fold-vec-cntlz-longlong.c: New.

From-SVN: r250995

PR c++/81359 - Unparsed NSDMI error from SFINAE context.

* init.c (get_nsdmi): Add complain parm.
* typeck2.c (digest_nsdmi_init): Add complain parm.
(process_init_constructor_record): Pass complain to get_nsdmi.
* pt.c (maybe_instantiate_noexcept): Add complain parm, return bool.
* method.c (get_defaulted_eh_spec): Add complain parm.  Pass it into
synthesized_method_walk.
(synthesized_method_walk): Adjust.
(walk_field_subobs): Pass complain to get_nsdmi.
(defaulted_late_check): Skip other checks if deleted.
* decl2.c (mark_used): Pass complain to maybe_instantiate_noexcept.
* call.c (build_aggr_conv): Pass complain to get_nsdmi.
* parser.c (defarg_location): New.
* error.c (location_of): Use it.

From-SVN: r250994

PR libstdc++/81751 don't call fflush(NULL)

PR libstdc++/79820
PR libstdc++/81751
* config/io/basic_file_stdio.cc (sys_open(FILE*, ios_base::openmode)):
Call fflush on the stream instead of calling sync() while _M_cfile is
null. Restore original value of errno.
* testsuite/ext/stdio_filebuf/char/79820.cc: New.
* testsuite/ext/stdio_filebuf/char/81751.cc: New.

From-SVN: r250993

compiler: handle >32bit exponent in Ldexp

    Libgo's implementation of math.Ldexp declared the libc "ldexp" as
    taking an 'int' exponent argument, which is not quite right for 64-bit
    platforms (exp arg is always int32); this could yield incorrect
    results for exponent values outside the range of Minint32/Maxint32.
    Fix by upating the type for the libc version of ldexp, and adding
    guards to screen for out-of-range exponents.

    Fixes #21323.

    Reviewed-on: https://go-review.googlesource.com/54250

From-SVN: r250992

* g++.dg/asan/asan.exp: Switch on *.cc tests.

From-SVN: r250991

Boolify some parameters.

From-SVN: r250986

re PR c/81233 (--Wdiscarded-qualifiers and Wincompatible-pointer-types missing important detail)

PR c/81233
* c-typeck.c (pedwarn_init): Make the function take a variable list.
Call emit_diagnostic_valist instead of pedwarn.
(convert_for_assignment): Unroll the PEDWARN_FOR_ASSIGNMENT macro.
Print the relevant types in diagnostics.

* diagnostic-core.h (emit_diagnostic_valist): Add declaration.
* diagnostic.c (emit_diagnostic): Add a comment.
(emit_diagnostic_valist): New function.

* gcc.dg/diagnostic-types-1.c: New test.
* gcc.dg/assign-warn-1.c: Update warning messages.
* gcc.dg/assign-warn-2.c: Likewise.
* gcc.dg/c90-const-expr-5.c: Likewise.
* gcc.dg/c99-const-expr-5.c: Likewise.
* gcc.dg/conv-2.c: Likewise.
* gcc.dg/init-bad-7.c: Likewise.
* gcc.dg/overflow-warn-1.c: Likewise.
* gcc.dg/overflow-warn-2.c: Likewise.
* gcc.dg/overflow-warn-3.c: Likewise.
* gcc.dg/overflow-warn-4.c: Likewise.
* gcc.dg/pointer-array-atomic.c: Likewise.
* gcc.dg/pr26865.c: Likewise.
* gcc.dg/pr61162-2.c: Likewise.
* gcc.dg/pr61162.c: Likewise.
* gcc.dg/pr67730-2.c: Likewise.
* gcc.dg/pr69156.c: Likewise.
* gcc.dg/pr70174.c: Likewise.
* objc.dg/proto-lossage-4.m: Likewise.

From-SVN: r250985

re PR c/81417 (-Wsign-compare should print types being compared)

PR c/81417
* c-array-notation.c (fix_builtin_array_notation_fn): Update calls to
build_conditional_expr.
* c-parser.c (c_parser_conditional_expression): Create locations for
EXP1 and EXP2 from their source ranges.  Pass the locations down to
build_conditional_expr.
* c-tree.h (build_conditional_expr): Update declaration.
* c-typeck.c (build_conditional_expr): Add location_t parameters.
For -Wsign-compare, also print the types.

* input.c (make_location): New overload.
* input.h (make_location): Declare.

* objc-next-runtime-abi-02.c (build_v2_build_objc_method_call): Update
a call to build_conditional_expr.

* Wsign-compare-1.c: New test.
* gcc.dg/compare1.c: Adjust dg-bogus.
* gcc.dg/compare2.c: Likewise.
* gcc.dg/compare3.c: Likewise.
* gcc.dg/compare7.c: Likewise.
* gcc.dg/compare8.c: Likewise.
* gcc.dg/compare9.c: Likewise.
* gcc.dg/pr11492.c: Likewise.

From-SVN: r250984

Daily bump.

From-SVN: r250983

PR driver/81523: Make -static override -pie

-static and -pie together behave differently depending on whether GCC is
configured with --enable-default-pie.  On x86, "-static -pie" fails to
create executable when --enable-default-pie isn't used, but creates a
static executable when --enable-default-pie is used.  This patch makes
-static completely override -pie to create a static executable, regardless
if --enable-default-pie is used to configure GCC.

gcc/

PR driver/81523
* gcc.c (NO_PIE_SPEC): Delete.
(PIE_SPEC): Define as !no-pie/pie.  Move static|shared|r
exclusion..
(LINK_PIE_SPEC): ..to here.
(LINK_COMMAND_SPEC): Support -no-pie.
* config/gnu-user.h (GNU_USER_TARGET_STARTFILE_SPEC): Correct
chain of crtbegin*.o selection, update for PIE_SPEC changes and
format.
(GNU_USER_TARGET_ENDFILE_SPEC): Similarly.
* config/sol2.h (STARTFILE_CRTBEGIN_SPEC): Similarly.
(ENDFILE_CRTEND_SPEC): Similarly.

gcc/testsuite/

PR driver/81523
* gcc.dg/pie-7.c: New test.
* gcc.dg/pie-static-1.c: Likewise.
* gcc.dg/pie-static-2.c: Likewise.

From-SVN: r250974

re PR target/81708 (The x86 stack canary location should be customizable)

PR target/81708
* config/i386/i386.opt (mstack-protector-guard-reg=): New option
(mstack-protector-guard-offset=): Ditto.
* config/i386/i386.c (ix86_option_override): Handle
-mstack-protector-guard-reg= and -mstack-protector-guard-offset=
options.
(ix86_stack_protect_guard): Use ix86_stack_protect_guard_reg and
ix86_stack_protect_guard_offset variables.
(TARGET_STACK_PROTECT_GUARD): Always define.
* doc/invoke.texi (x86 Options): Document -mstack-protector-guard-reg=
and -mstack-protector-guard-offset= options.

testsuite/ChangeLog:

PR target/81708
* gcc.target/i386/stack-prot-guard.c: New test.

From-SVN: r250965

tree-ssa-loop-ivopts.c (relate_compare_use_with_all_cands): Handle boundary case for the last candidate.

* tree-ssa-loop-ivopts.c (relate_compare_use_with_all_cands): Handle
boundary case for the last candidate.

From-SVN: r250960

invoke.texi: Document -ftree-loop-distribution for O3.

* doc/invoke.texi: Document -ftree-loop-distribution for O3.
* opts.c (default_options_table): Add OPT_ftree_loop_distribution.

From-SVN: r250959

re PR middle-end/19706 (Recognize common Fortran usages of copysign.)

2017-08-08  Tamar Christina  <tamar.christina@arm.com>

PR middle-end/19706
* config/aarch64/aarch64.md (xorsign<mode>3): New optabs.
* config/aarch64/aarch64-builtins.c
(aarch64_builtin_vectorized_function): Added CASE_CFN_XORSIGN.
* config/aarch64/aarch64-simd-builtins.def: Added xorsign BINOP.
* config/aarch64/aarch64-simd.md: Added xorsign<mode>3.

gcc/testsuite/
2017-08-08  Tamar Christina  <tamar.christina@arm.com>

* gcc.target/aarch64/xorsign.c: New.
* gcc.target/aarch64/xorsign_exec.c: New.
* gcc.target/aarch64/vect-xorsign_exec.c: New.

From-SVN: r250957

re PR middle-end/19706 (Recognize common Fortran usages of copysign.)

2017-08-08  Tamar Christina  <tamar.christina@arm.com>
    Andrew Pinski <pinskia@gmail.com>

PR middle-end/19706
* internal-fn.def (XORSIGN): New.
* optabs.def (xorsign_optab): New.
* tree-ssa-math-opts.c (is_copysign_call_with_1): New.
(convert_expand_mult_copysign): New.
(pass_optimize_widening_mul::execute): Call convert_expand_mult_copysign.

Co-Authored-By: Andrew Pinski <pinskia@gmail.com>
From-SVN: r250956

re PR tree-optimization/81354 (Segmentation fault in SSA Strength Reduction using -O3)

[gcc]

2017-08-08  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

PR tree-optimization/81354
* gimple-ssa-strength-reduction.c (create_add_on_incoming_edge):
Insert on edges rather than explicitly creating landing pads.
(analyze_candidates_and_replace): Commit edge inserts.

[gcc/testsuite]

2017-08-08  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

PR tree-optimization/81354
* g++.dg/torture/pr81354.C: New file.

From-SVN: r250955

re PR middle-end/81719 (Range-based for loop on short fixed size array generates long unrolled loop)

2017-08-08  Richard Biener  <rguenther@suse.de>

PR middle-end/81719
* tree-ssa-loop-niter.c: Include tree-dfa.h.
(expand_simple_operations): Also look through ADDR_EXPRs with
MEM_REF bases treating them as POINTER_PLUS_EXPR.

* g++.dg/tree-ssa/pr81719.C: New testcase.

From-SVN: r250954

re PR tree-optimization/81723 (fortran build doesn't terminate on 64bit targets)

2017-08-08  Richard Biener  <rguenther@suse.de>

PR tree-optimization/81723
* tree-vect-slp.c (struct bst_traits): New hash traits.
(bst_fail): New global.
(vect_build_slp_tree_2): New worker, split out from ...
(vect_build_slp_tree): ... this now wrapping it with using
bst_fail set to cache SLP tree build fails.  Properly handle
max_tree_size.
(vect_analyze_slp_instance): Allocate and free bst_fail.

* gfortran.dg/pr81723.f: New testcase.

From-SVN: r250953