gcc.git
7 years agoDWARF: add DW_AT_location for global decls with DECL_VALUE_EXPR
Pierre-Marie de Rodat [Thu, 1 Jun 2017 14:06:37 +0000 (14:06 +0000)]
DWARF: add DW_AT_location for global decls with DECL_VALUE_EXPR

In GNAT, we materialize renamings that cannot be described in standard
DWARF as synthetic variables that describe how to fetch the renamed
object.  Look for "___XR" in gcc/ada/exp_dbug.ads for more details about
this convention.

In order to have a location for these variables in the debug info (GDB
requires it not to discard the variable) but also to avoid allocating
runtime space for them, we make these variable hold a DECL_VALUE_EXPR
tree.  However, since GCC 7, the DWARF back-end no longer generates a
DW_AT_location attribute for those.  This patch is an attempt to restore
this attribute.

gcc/

* dwarf2out.c (dwarf2out_late_global_decl): Add locations for
symbols that hold a DECL_VALUE_EXPR.

gcc/testsuite/

* debug12.adb, debug12.ads: New testcase.

From-SVN: r248792

7 years agoFix cross compilation to Solaris
Rainer Orth [Thu, 1 Jun 2017 13:50:03 +0000 (13:50 +0000)]
Fix cross compilation to Solaris

(GLIBCXX_CROSSCONFIG): Handle *-solaris* like *-linux* etc.
Remove *-solaris* section.
* configure: Regenerate.

From-SVN: r248791

7 years ago[PR 80898] Propagate grp_write from disqualified SRA candidates
Martin Jambor [Thu, 1 Jun 2017 12:14:29 +0000 (14:14 +0200)]
[PR 80898] Propagate grp_write from disqualified SRA candidates

2017-06-01  Martin Jambor  <mjambor@suse.cz>

PR tree-optimization/80898
* tree-sra.c (process_subtree_disqualification): Removed.
(disqualify_candidate): Do not acll
process_subtree_disqualification.
(subtree_mark_written_and_enqueue): New function.
(propagate_all_subaccesses): Set grp_write of LHS subtree if the
RHS has been disqualified and re-queue LHS if necessary.  Apart
from that, ignore disqualified RHS.

testsuite/
* gcc.dg/tree-ssa/pr80898.c: New test.
* gcc.dg/tree-ssa/pr80898-2.c: Likewise.

From-SVN: r248790

7 years agoS/390: Don't fetch the return address early with ooo
Andreas Krebbel [Thu, 1 Jun 2017 11:30:36 +0000 (11:30 +0000)]
S/390: Don't fetch the return address early with ooo

We used to load the return address slot some time in advance.  This
helped on older machines to resolve the data dependencies in time.
However, it is pointless on out of order CPUs.  Disabled with that
patch.

gcc/ChangeLog:

2017-06-01  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

* config/s390/s390.c (s390_emit_epilogue): Disable early return
address fetch for z10 or later.

From-SVN: r248789

7 years agore PR c++/80812 (ICE: in build_value_init_noctor, at cp/init.c:483)
Ville Voutilainen [Thu, 1 Jun 2017 11:09:41 +0000 (14:09 +0300)]
re PR c++/80812 (ICE: in build_value_init_noctor, at cp/init.c:483)

PR c++/80812

cp/

PR c++/80812
* method.c (constructible_expr): Strip array types before calling
build_value_init.

libstdc++/

PR c++/80812
* testsuite/20_util/is_constructible/80812.cc: New.

From-SVN: r248788

7 years agore PR ada/80921 (cross compiling fails to build Ada shared libraries)
Eric Botcazou [Thu, 1 Jun 2017 10:51:15 +0000 (10:51 +0000)]
re PR ada/80921 (cross compiling fails to build Ada shared libraries)

PR ada/80921
* configure.ac (default_gnatlib_target): Remove bogus condition.
(have_getipinfo): Tweak.
* configure: Regenerate.

From-SVN: r248785

7 years agore PR c++/80896 ([[nodiscard]] is ignored for functions returning references)
Paolo Carlini [Thu, 1 Jun 2017 10:20:27 +0000 (10:20 +0000)]
re PR c++/80896 ([[nodiscard]] is ignored for functions returning references)

/cp
2017-06-01  Paolo Carlini  <paolo.carlini@oracle.com>

PR c++/80896
* cvt.c (convert_to_void): Possibly call maybe_warn_nodiscard
for case INDIRECT_REF too in the main switch.

/testsuite
2017-06-01  Paolo Carlini  <paolo.carlini@oracle.com>

PR c++/80896
* g++.dg/cpp1z/nodiscard5.C: New.

From-SVN: r248784

7 years ago[ARC] Fix tst_movb pattern.
Claudiu Zissulescu [Thu, 1 Jun 2017 09:43:10 +0000 (11:43 +0200)]
[ARC] Fix tst_movb pattern.

The tst_movb pattern is missing guarding when spitting.

gcc/
2017-06-01  Claudiu Zissulescu  <claziss@synopsys.com>

* config/arc/arc.md (tst_movb): Add guard when splitting.

testsuite/
2017-06-01  Claudiu Zissulescu  <claziss@synopsys.com>

* gcc.target/arc/pr9001195952.c: New test.

From-SVN: r248783

7 years ago[ARC] Test against frame_pointer_needed in arc_can_eliminate.
Claudiu Zissulescu [Thu, 1 Jun 2017 09:42:59 +0000 (11:42 +0200)]
[ARC] Test against frame_pointer_needed in arc_can_eliminate.

arc_can_eliminate is using arc_frmae_pointer_required() which is wrong
as the frame_pointer_needed can be set on different conditions. Fix it
by calling arc_frame_pointer_needed().

gcc/
2017-06-01  Claudiu Zissulescu  <claziss@synopsys.com>

* config/arc/arc.c (arc_can_eliminate): Test against
arc_frame_pointer_needed.

From-SVN: r248782

7 years ago[ARC] Prevent moving stores to the frame before the stack adjustment.
Claudiu Zissulescu [Thu, 1 Jun 2017 09:42:49 +0000 (11:42 +0200)]
[ARC] Prevent moving stores to the frame before the stack adjustment.

If the stack pointer is needed, emit a special barrier that will prevent
the scheduler from moving stores to the frame before the stack adjustment.

For example:

[snip]
mov_s fp,sp  ; frame pointer is set here
[snip]
st r1,[fp,-24] ; frame pointer is used here
[snip]
sub_s sp,sp,0x20 ; stack pointer adjusted

So we can easily see that any interrupt between the `st` and `sub`
instruction will lead to faulty code as the interrupt routine will use
a faulty sp register, and, potentially, overwriting the value stored
by 'st' instruction. Thus, adding a scheduler barrier will force the
compiler to emit the `sub` instruction before the store one.

2017-06-01  Claudiu Zissulescu  <claziss@synopsys.com>

* config/arc/arc.c (arc_expand_prologue): Emit a special barrier
to prevent store reordering.
* config/arc/arc.md (UNSPEC_ARC_STKTIE): Define.
(type): Add block type.
(stack_tie): Define special instruction to be used in
expand_prologue.

From-SVN: r248781

7 years ago[ARC] Update (non)commutative_binary_comparison patterns.
Claudiu Zissulescu [Thu, 1 Jun 2017 09:42:39 +0000 (11:42 +0200)]
[ARC] Update (non)commutative_binary_comparison patterns.

gcc/
2017-06-01  Claudiu Zissulescu  <claziss@synopsys.com>

* config/arc/arc.md (commutative_binary_comparison): Remove 'I'
constraint. It is not valid for the pattern.
(noncommutative_binary_comparison): Likewise.

From-SVN: r248780

7 years ago[ARC] Change predicate movv2hi to avoid scaled addresses.
Claudiu Zissulescu [Thu, 1 Jun 2017 09:42:27 +0000 (11:42 +0200)]
[ARC] Change predicate movv2hi to avoid scaled addresses.

2017-06-01  Claudiu Zissulescu  <claziss@synopsys.com>

* config/arc/simdext.md (movv2hi_insn): Change predicate to avoid
scaled addresses.

From-SVN: r248779

7 years ago[ARC] Allow r30 to be used by the reg-alloc.
Claudiu Zissulescu [Thu, 1 Jun 2017 09:42:06 +0000 (11:42 +0200)]
[ARC] Allow r30 to be used by the reg-alloc.

gcc/
2018-06-01  Claudiu Zissulescu  <claziss@synopsys.com>

* config/arc/arc.c (arc_conditional_register_usage): Allow r30 to
be used by the reg-alloc.

From-SVN: r248778

7 years ago[ARC] Avoid use of hard registers before reg-alloc.
Claudiu Zissulescu [Thu, 1 Jun 2017 09:41:46 +0000 (11:41 +0200)]
[ARC] Avoid use of hard registers before reg-alloc.

gcc/
2017-06-01  Claudiu Zissulescu  <claziss@synopsys.com>

* config/arc/arc.md (mulsi3): Avoid use of hard registers before
reg-alloc when having mul64 or mul32x16 instructions.
(mulsidi3): Likewise.
(umulsidi3): Likewise.
(mulsi32x16): New pattern.
(mulsi64): Likewise.
(mulsidi64): Likewise.
(umulsidi64): Likewise.
(MUL32x16_REG): Define.
(mul64_600): Use MUL32x16_REG.
(mac64_600): Likewise.
(umul64_600): Likewise.
(umac64_600): Likewise.

From-SVN: r248777

7 years ago[ARC] Make mulsi for A700 pattern commutative.
Claudiu Zissulescu [Thu, 1 Jun 2017 09:41:13 +0000 (11:41 +0200)]
[ARC] Make mulsi for A700 pattern commutative.

gcc/
2017-06-01  Claudiu Zissulescu  <claziss@synopsys.com>

* config/arc/arc.md (mulsi3_700): Make it commutative.

From-SVN: r248776

7 years agoRequire label_values for some test-cases
Tom de Vries [Thu, 1 Jun 2017 09:13:09 +0000 (09:13 +0000)]
Require label_values for some test-cases

2017-06-01  Tom de Vries  <tom@codesourcery.com>

* c-c++-common/pr43395.c: Add dg-require-effective-target label_values.
* gcc.c-torture/compile/asmgoto-1.c: Same.
* gcc.dg/20000707-1.c: Same.
* gcc.dg/pr38700.c: Same.
* gcc.dg/pr70169.c: Same.
* gcc.dg/pr80112.c: Same.
* gcc.dg/torture/pr51071-2.c: Same.
* gcc.dg/torture/pr51071.c: Same.
* gcc.dg/tree-ssa/alias-34.c: Same.

From-SVN: r248775

7 years agosparc.md (*zero_extendsidi2_insn_sp64): Set insn type for movstouw.
Jose E. Marchesi [Thu, 1 Jun 2017 08:43:22 +0000 (10:43 +0200)]
sparc.md (*zero_extendsidi2_insn_sp64): Set insn type for movstouw.

gcc/ChangeLog:
* config/sparc/sparc.md (*zero_extendsidi2_insn_sp64): Set insn
type for movstouw.
(*sign_extendsidi2_insn): Likewise for movstosw.

From-SVN: r248774

7 years agoDWARF: for variants, produce unsigned discr. when debug type is unsigned
Pierre-Marie de Rodat [Thu, 1 Jun 2017 08:36:57 +0000 (08:36 +0000)]
DWARF: for variants, produce unsigned discr. when debug type is unsigned

In Ada, the Character type is supposed to be unsigned.  However,
depending on the sign of C char types, GNAT can materialize it as a
signed type for code generation purposes.  When this is the case, GNAT
also attach a debug type to it so it is represented as an unsigned base
type in the debug information.

This change adapts record variant parts processing in the DWARF back-end
so that when the debug type of discriminant is unsigned while
discriminant values are signed themselves, we output unsigned
discriminant values in DWARF.

gcc/

* dwarf2out.c (get_discr_value): Call the get_debug_type hook on
the type of the input discriminant value.  Convert the
discriminant value of signedness vary.

gcc/testsuite/

* gnat.dg/debug11.adb: New testcase.

From-SVN: r248773

7 years agoc.opt (Wcatch-value): New shortcut for Wcatch-value=1.
Volker Reichelt [Thu, 1 Jun 2017 08:10:24 +0000 (08:10 +0000)]
c.opt (Wcatch-value): New shortcut for Wcatch-value=1.

        * c.opt (Wcatch-value): New shortcut for Wcatch-value=1.
        (Wcatch-value=1): Enable by -Wall.

        * doc/invoke.texi (-Wcatch-value): Document new shortcut.
        Add to -Wall section.

From-SVN: r248772

7 years agore PR middle-end/66313 (Unsafe factorization of a*b+a*c)
Richard Biener [Thu, 1 Jun 2017 08:05:24 +0000 (08:05 +0000)]
re PR middle-end/66313 (Unsafe factorization of a*b+a*c)

2017-06-01  Richard Biener  <rguenther@suse.de>

PR middle-end/66313
* fold-const.c (fold_plusminus_mult_expr): If the factored
factor may be zero use a wrapping type for the inner operation.
* tree-tailcall.c (independent_of_stmt_p): Pass in to_move bitmap
and handle moved defs.
(process_assignment): Properly guard the unary op case.  Return a
tri-state indicating that moving the stmt before the call may allow
to continue.  Pass through to_move.
(find_tail_calls): Handle moving unrelated defs before
the call.

* c-c++-common/ubsan/pr66313.c: New testcase.
* gcc.dg/tree-ssa/loop-15.c: Adjust.

From-SVN: r248771

7 years agoDaily bump.
GCC Administrator [Thu, 1 Jun 2017 00:16:19 +0000 (00:16 +0000)]
Daily bump.

From-SVN: r248770

7 years agoFix up dg options to resolve make check failures Bill Seurer found
Steven Munroe [Thu, 1 Jun 2017 00:15:51 +0000 (00:15 +0000)]
Fix up dg options to resolve make check failures Bill Seurer found
when compiling --with-cpu=power6.

2017-05-31  Steven Munroe  <munroesj@gcc.gnu.org>

* gcc.target/powerpc/bmi2-pdep32-1.c: Add -mcpu=power7 to
        dg-options.  Change dg-require-effective-target powerpc_vsx_ok
        to vsx_hw.  Add dg-skip-if directive to disable this test if
-mcpu overridden.
* gcc.target/powerpc/bmi2-pdep64-1.c: Likewise.
* gcc.target/powerpc/bmi2-pext32-1.c: Likewise.
* gcc.target/powerpc/bmi2-pext64-1.c: Likewise.
* gcc.target/powerpc/bmi2-pext64-1a.c: Add -mcpu=power7
to dg-option.  Add dg-skip-if directive to disable this test
for darwin.  Add dg-skip-if directive to disable this test if
-mcpu overridden.

From-SVN: r248766

7 years agolibgo: support for sparc64 GNU/Linux
Ian Lance Taylor [Wed, 31 May 2017 21:36:42 +0000 (21:36 +0000)]
libgo: support for sparc64 GNU/Linux

    Fix lfstack code to work with sparc64 GNU/Linux address map.

    Force alignment of epollevent.  To make this work reliably, pass
    GOARCH explicitly to mkrsysinfo.sh.

    Patch by Vladimir Mezentsev.

    Reviewed-on: https://go-review.googlesource.com/44494

From-SVN: r248765

7 years agoFix changelog of previous commit, the correct version is:
Segher Boessenkool [Wed, 31 May 2017 21:09:41 +0000 (23:09 +0200)]
Fix changelog of previous commit, the correct version is:

PR target/80618
* config/rs6000/vector.md (*vector_uneq<mode>): Write the nor in the
splitter result in the canonical way.

From-SVN: r248764

7 years agors6000: Don't write "nor" as (not (ior () ())) (PR80618)
Segher Boessenkool [Wed, 31 May 2017 20:58:59 +0000 (22:58 +0200)]
rs6000: Don't write "nor" as (not (ior () ())) (PR80618)

The canonical RTL for "nor" is (and (not ()) (not ())), and that is
indeed what we use in boolccv2df3_internal1.  So, the splitter for
*vector_uneq<mode> should use that form, not (not (ior () ())), which
does not match any pattern.

PR target/80618
* config/rs6000/rs6000.md (*vector_uneq<mode>): Write the nor in the
splitter result in the canonical way.

From-SVN: r248763

7 years agoi386.md (*zero_extendsidi2): Enable alternative (?r, *Yj) also for 32bit target.
Uros Bizjak [Wed, 31 May 2017 18:33:30 +0000 (20:33 +0200)]
i386.md (*zero_extendsidi2): Enable alternative (?r, *Yj) also for 32bit target.

* config/i386/i386.md (*zero_extendsidi2): Enable alternative (?r, *Yj)
also for 32bit target.  Update insn attributes.
(zero-extendsidi2 splitter): Allow all registers for operand 1.

From-SVN: r248757

7 years ago* config/i386/avx512fintrin.h (_mm_mask_max_sd)
Sebastian Peryt [Wed, 31 May 2017 18:26:44 +0000 (20:26 +0200)]
* config/i386/avx512fintrin.h (_mm_mask_max_sd)
        (_mm_maskz_max_sd, _mm_mask_max_ss, _mm_maskz_max_ss)
        (_mm_mask_min_sd, _mm_maskz_min_sd, _mm_mask_min_ss)
        (_mm_maskz_min_ss): New intrinsics.

testsuite/ChangeLog:

* gcc.target/i386/avx512f-vmaxsd-1.c (_mm_mask_max_sd)
(_mm_maskz_max_sd): Test new intrinsics.
* gcc.target/i386/avx512f-vmaxsd-2.c (_mm_mask_max_sd)
(_mm_maskz_max_sd): Test new intrinsics.
* gcc.target/i386/avx512f-vmaxss-1.c (_mm_mask_max_ss)
(_mm_maskz_max_ss): Test new intrinsics.
* gcc.target/i386/avx512f-vmaxss-2.c (_mm_mask_max_ss)
(_mm_maskz_max_ss): Test new intrinsics.
* gcc.target/i386/avx512f-vminsd-1.c (_mm_mask_min_sd)
(_mm_maskz_min_sd): Test new intrinsics.
* gcc.target/i386/avx512f-vminsd-2.c (_mm_mask_min_sd)
(_mm_maskz_min_sd): Test new intrinsics.
* gcc.target/i386/avx512f-vminss-1.c (_mm_mask_min_ss)
(_mm_maskz_min_ss): Test new intrinsics.
* gcc.target/i386/avx512f-vminss-2.c (_mm_mask_min_ss)
(_mm_maskz_min_ss): Test new intrinsics.

From-SVN: r248756

7 years agoPR c++/80840 - ICE with constexpr and reference
Jason Merrill [Wed, 31 May 2017 17:11:17 +0000 (13:11 -0400)]
PR c++/80840 - ICE with constexpr and reference

* pt.c (convert_nontype_argument): Don't test whether a decl is
value-dependent when binding to a reference.

From-SVN: r248749

7 years agocp-tree.h (lang_decl_slector): New enum.
Nathan Sidwell [Wed, 31 May 2017 16:46:58 +0000 (16:46 +0000)]
cp-tree.h (lang_decl_slector): New enum.

* cp-tree.h (lang_decl_slector): New enum.
(lang_decl_base): Make selector an enum.  Drop decomposition_p
field.
(lang_decl): Use enum for discrimination.
(LANG_DECL_FN_CHECK, LANG_DECL_NS_CHECK, LANG_DECL_PARM_CHECK,
LANG_DECL_DEOMP_CHECK): Use enum.
(DECL_DECOMPOSITION_P): Use selector value.
(SET_DECL_DECOMPOSITION_P): Delete.
(retrofit_lang_decl): Lose SEL parm.
(fit_decomposition_lang_decl): Declare.
* decl.c (cp_finish_decomp, grokdeclarator): Use
fit_decomposition_lang_decl.
* lex.c (maybe_add_lang_decl_raw): New. Broken out of
retrofit_lang_decl.
(set_decl_linkage): New.  Broken out of retrofit_lang_decl.  Use
enum.
(fit_decomposition_lang_decl): Likewise.
(retrofit_lang_decl): Use worker functions.
(cxx_dup_lang_specific_decl): Use selector enum.
(maybe_add_lang_type_raw): New.  Broken out of ...
(cxx_make_type_name): ... here.  Call it.

From-SVN: r248748

7 years ago* g++.dg/lookup/lambda1.C New.
Nathan Sidwell [Wed, 31 May 2017 16:38:28 +0000 (16:38 +0000)]
* g++.dg/lookup/lambda1.C New.

From-SVN: r248747

7 years agoivopt_mult_4.c: Explicitly check comparison on pointer should not be replaced.
Bin Cheng [Wed, 31 May 2017 16:20:32 +0000 (16:20 +0000)]
ivopt_mult_4.c: Explicitly check comparison on pointer should not be replaced.

gcc/testsuite
* gcc.dg/tree-ssa/ivopt_mult_4.c: Explicitly check comparison
on pointer should not be replaced.

From-SVN: r248746

7 years agoDoxygen: transform ENUM_BITFIELD and comments starting with '/**'.
Martin Liska [Wed, 31 May 2017 14:08:36 +0000 (16:08 +0200)]
Doxygen: transform ENUM_BITFIELD and comments starting with '/**'.

2017-05-31  Martin Liska  <mliska@suse.cz>

* filter_params.py:
Transform ENUM_BITFIELD and comments starting with '/**'

From-SVN: r248741

7 years agoChange comment style to one we normally use.
Martin Liska [Wed, 31 May 2017 14:07:59 +0000 (16:07 +0200)]
Change comment style to one we normally use.

2017-05-31  Martin Liska  <mliska@suse.cz>

* tree-vect-loop.c (vect_create_epilog_for_reduction):
Change comment style to one we normally use.
(vectorizable_reduction): Likewise.
(vectorizable_induction): Likewise.
* tree-vect-stmts.c (vectorizable_mask_load_store): Likewise.
(vectorizable_call): Likewise.
(vectorizable_simd_clone_call): Likewise.
(vectorizable_conversion): Likewise.
(vectorizable_assignment): Likewise.
(vectorizable_shift): Likewise.
(vectorizable_operation): Likewise.
(vectorizable_store): Likewise.
(vectorizable_load): Likewise.
* tree-vectorizer.h: Likewise.

From-SVN: r248740

7 years agoPort Doxygen support script from Perl to Python; add unittests
David Malcolm [Wed, 31 May 2017 14:07:30 +0000 (14:07 +0000)]
Port Doxygen support script from Perl to Python; add unittests

2017-05-31  David Malcolm  <dmalcolm@redhat.com>
    Martin Liska  <mliska@suse.cz>

* filter_params.py: New, porting the perl script to python,
adding a test suite.
* filter_gcc_for_doxygen_new: New file.

Co-Authored-By: Martin Liska <mliska@suse.cz>
From-SVN: r248739

7 years agoGIMPLEFE: Handle missing labels in goto statements
Mikhail Maltsev [Wed, 31 May 2017 13:47:51 +0000 (13:47 +0000)]
GIMPLEFE: Handle missing labels in goto statements

gcc/c/

PR testsuite/80580
* gimple-parser.c (c_parser_gimple_if_stmt): Check for empty labels.

gcc/testsuite/

PR testsuite/80580
* gcc.dg/gimplefe-error-7.c: New test.

From-SVN: r248738

7 years agoFix configure.ac to respect --{enable,disable}-werror option.
Martin Liska [Wed, 31 May 2017 13:35:41 +0000 (15:35 +0200)]
Fix configure.ac to respect --{enable,disable}-werror option.

2017-05-31  Martin Liska  <mliska@suse.cz>

* configure.ac: Add handling of stage2_werror_flags to
action-if-given and to action-if-not-given.
* configure: Regenerate.

From-SVN: r248737

7 years agopasses.c: implement pre-ICE emergency dumping
Alexander Monakov [Wed, 31 May 2017 13:26:54 +0000 (16:26 +0300)]
passes.c: implement pre-ICE emergency dumping

* passes.c (emergency_dump_function): New.
* tree-pass.h (emergency_dump_function): Declare.
* plugin.c (plugins_internal_error_function): Remove.
* plugin.h (plugins_internal_error_function): Remove declaration.
* toplev.c (internal_error_function): New static function.  Use it...
(general_init): ...here.

From-SVN: r248736

7 years ago[ARC] Recognise add_n and sub_n in combine again
Graham Markall [Wed, 31 May 2017 13:15:33 +0000 (13:15 +0000)]
[ARC] Recognise add_n and sub_n in combine again

Since the combine pass canonicalises shift-add insns using plus and
ashift (as opposed to plus and mult which it previously used to do), it
no longer creates *add_n or *sub_n insns, as the patterns match plus and
mult only. The outcome of this is that some opportunities to generate
add{1,2,3} and sub{1,2,3} instructions are missed.

This change adds additional *add_n and *sub_n insns that match the
plus-ashift pattern. The original *add_n and *sub_n insns are still left
in, as they are sometimes generated later on by constant propagation.
The idea of adding these insns is modelled on the changes in:

  https://gcc.gnu.org/ml/gcc-patches/2015-05/msg01882.html

which addresses a similar issue for the PA target.

For the small test cases that are added, even if the combine pass misses
the opportunity to generate addN or subN, constant propagation manages
to do so, so the rtl of the combine pass is checked.

gcc/ChangeLog:

        * config/arc/arc.c (arc_print_operand): Handle constant operands.
        (arc_rtx_costs): Add costs for new patterns.
        * config/arc/arc.md: Additional *add_n and *sub_n patterns.
        * config/arc/predicates.md: Add _1_2_3_operand predicate.

gcc/testsuite/ChangeLog:

        * gcc.target/arc/add_n-combine.c: New test.
        * gcc.target/arc/sub_n-combine.c: New test.

From-SVN: r248735

7 years agoPR libstdc++/80893 Fix null dereference in vector<bool>
Jonathan Wakely [Wed, 31 May 2017 12:41:45 +0000 (13:41 +0100)]
PR libstdc++/80893 Fix null dereference in vector<bool>

PR libstdc++/80893
* include/bits/stl_bvector.h (vector<bool>::_M_initialize): Avoid
null pointer dereference when size is zero.
* testsuite/23_containers/vector/bool/80893.cc: New.
* testsuite/util/testsuite_allocator.h (PointerBase::PointerBase):
Add non-explicit constructor from nullptr.
(PointerBase::derived() const): Add const-qualified overload.

From-SVN: r248734

7 years ago[1/2] Add get_next_strinfo helper function
Richard Sandiford [Wed, 31 May 2017 12:26:03 +0000 (12:26 +0000)]
[1/2] Add get_next_strinfo helper function

This patch just adds a helper function for getting the next strinfo
in a chain, since part 2 adds another place where we do that.

2017-05-16  Richard Sandiford  <richard.sandiford@linaro.org>

gcc/
* tree-ssa-strlen.c (get_next_strinfo): New function.
(get_stridx_plus_constant): Use it.
(zero_length_string): Likewise.
(adjust_related_strinfos): Likewise.
(adjust_last_stmt): Likewise.

From-SVN: r248732

7 years agore PR target/80880 (internal compiler error: in ix86_expand_builtin)
Richard Biener [Wed, 31 May 2017 12:09:51 +0000 (12:09 +0000)]
re PR target/80880 (internal compiler error: in ix86_expand_builtin)

2017-05-31  Richard Biener  <rguenther@suse.de>

PR target/80880
* config/i386/i386.c (ix86_expand_builtin): Remove assert
for arg being an SSA name when expanding IX86_BUILTIN_BNDRET.

* gcc.target/i386/pr80880.c: New testcase.

From-SVN: r248731

7 years agoAlternative check for vector refs with same alignment
Richard Sandiford [Wed, 31 May 2017 12:05:10 +0000 (12:05 +0000)]
Alternative check for vector refs with same alignment

vect_find_same_alignment_drs uses the ddr dependence distance
to tell whether two references have the same alignment.  Although
that's safe with the current code, there's no particular reason
why a dependence distance of 0 should mean that the accesses start
on the same byte.  E.g. a reference to a full complex value could
in principle depend on a reference to the imaginary component.
A later patch adds support for this kind of dependence.

On the other side, checking modulo vf is pessimistic when the step
divided by the element size is a factor of 2.

This patch instead looks for cases in which the drs have the same
base, offset and step, and for which the difference in their constant
initial values is a multiple of the alignment.

2017-05-03  Richard Sandiford  <richard.sandiford@linaro.org>

gcc/
* tree-vect-data-refs.c (vect_find_same_alignment_drs): Remove
loop_vinfo argument and use of dependence distance vectors.
Check instead whether the two references differ only in their
initial value and assume that they have the same alignment if the
difference is a multiple of the vector alignment.
(vect_analyze_data_refs_alignment): Update call accordingly.

gcc/testsuite/
* gcc.dg/vect/vect-103.c: Update wording of dump message.

From-SVN: r248730

7 years agoFix typo in a comment in cpuid.h (PR target/79155).
Martin Liska [Wed, 31 May 2017 11:40:13 +0000 (13:40 +0200)]
Fix typo in a comment in cpuid.h (PR target/79155).

2017-05-31  Martin Liska  <mliska@suse.cz>

PR target/79155
* config/i386/cpuid.h: Fix typo in a comment in cpuid.h.

From-SVN: r248729

7 years ago* tree-vect-loop-manip.c (create_intersect_range_checks_index)
Bin Cheng [Wed, 31 May 2017 09:03:27 +0000 (09:03 +0000)]
* tree-vect-loop-manip.c (create_intersect_range_checks_index)
(create_intersect_range_checks): Move from ...
* tree-data-ref.c (create_intersect_range_checks_index)
(create_intersect_range_checks): ... to here.
(create_runtime_alias_checks): New function factored from ...
* tree-vect-loop-manip.c (vect_create_cond_for_alias_checks): ...
here.  Call above function.
* tree-data-ref.h (create_runtime_alias_checks): New function.

From-SVN: r248726

7 years agotree-data-ref.c (prune_runtime_alias_test_list): Relax minimal segment length for...
Bin Cheng [Wed, 31 May 2017 09:01:36 +0000 (09:01 +0000)]
tree-data-ref.c (prune_runtime_alias_test_list): Relax minimal segment length for dr_b and compute it in wide_int.

* tree-data-ref.c (prune_runtime_alias_test_list): Relax minimal
segment length for dr_b and compute it in wide_int.

gcc/testsuite
* gcc.dg/vect/pr80815-3.c: New test.

From-SVN: r248725

7 years agoMAINTAINERS: Add self to Write After Approval
Prakhar Bahuguna [Wed, 31 May 2017 08:25:25 +0000 (08:25 +0000)]
MAINTAINERS: Add self to Write After Approval

2017-05-31  Prakhar Bahuguna  <prakhar.bahuguna@arm.com>

* MAINTAINERS: Add self to Write After Approval

From-SVN: r248723

7 years agore PR tree-optimization/80906 (ICE in copy_loop_close_phi_args, at graphite-isl-ast...
Richard Biener [Wed, 31 May 2017 07:09:21 +0000 (07:09 +0000)]
re PR tree-optimization/80906 (ICE in copy_loop_close_phi_args, at graphite-isl-ast-to-gimple.c:2094)

2017-05-31  Richard Biener  <rguenther@suse.de>

PR tree-optimization/80906
* graphite-isl-ast-to-gimple.c (copy_loop_close_phi_nodes): Get
and pass through iv_map.
(copy_bb_and_scalar_dependences): Adjust.
(translate_pending_phi_nodes): Likewise.
(copy_loop_close_phi_args): Handle code-generating IVs instead
of ICEing.

* gcc.dg/graphite/pr80906.c: New testcase.

From-SVN: r248722

7 years agoconfigure.ac (strnlen): Add to AC_CHECK_DECLS.
DJ Delorie [Wed, 31 May 2017 04:16:45 +0000 (00:16 -0400)]
configure.ac (strnlen): Add to AC_CHECK_DECLS.

* configure.ac (strnlen): Add to AC_CHECK_DECLS.
* configure: Likewise.
* config.in: Add HACE_DECL_STRNLEN.

From-SVN: r248721

7 years agoDaily bump.
GCC Administrator [Wed, 31 May 2017 00:16:25 +0000 (00:16 +0000)]
Daily bump.

From-SVN: r248719

7 years agoTest if host compiler supports -std=c++11 in ms-sysv.exp
Tom de Vries [Tue, 30 May 2017 22:00:57 +0000 (22:00 +0000)]
Test if host compiler supports -std=c++11 in ms-sysv.exp

2017-05-30  Tom de Vries  <tom@codesourcery.com>

PR testsuite/80910
* gcc.target/x86_64/abi/ms-sysv/ms-sysv.exp: Exit with status
unsupported if host compiler does not support c++11.
(host_supports_c++11): New proc.

From-SVN: r248701

7 years agore PR c/80731 (poor -Woverflow warnings, missing detail)
Martin Sebor [Tue, 30 May 2017 21:27:35 +0000 (21:27 +0000)]
re PR c/80731 (poor -Woverflow warnings, missing detail)

gcc/testsuite/ChangeLog:
PR c/80731
* g++.dg/ext/utf16-4.C: Relax test.
* gcc.dg/fixed-point/int-warning.c: Adjust.

From-SVN: r248700

7 years agoPR c++/80856 - ICE with local extern in template
Jason Merrill [Tue, 30 May 2017 21:13:27 +0000 (17:13 -0400)]
PR c++/80856 - ICE with local extern in template

* semantics.c (finish_call_expr): Replace a local extern overload
set in a template with the IDENTIFIER_NODE.

From-SVN: r248699

7 years agoC++ template type diff printing
David Malcolm [Tue, 30 May 2017 20:38:14 +0000 (20:38 +0000)]
C++ template type diff printing

gcc/ChangeLog:
* diagnostic-color.c (color_dict): Add "type-diff".
(parse_gcc_colors): Update comment.
* doc/invoke.texi (Diagnostic Message Formatting Options): Add
-fdiagnostics-show-template-tree and -fno-elide-type.
(GCC_COLORS): Add type-diff to example.
(type-diff=): New.
(-fdiagnostics-show-template-tree): New.
(-fno-elide-type): New.
* pretty-print.c (pp_format): Pass quote and formatters[argno] to
the pp_format_decoder callback.  Call any m_format_postprocessor's
"handle" method.
(pretty_printer::pretty_printer): Initialize
m_format_postprocessor.
(pretty_printer::~pretty_printer): Delete any
m_format_postprocessor.
* pretty-print.h (printer_fn): Add bool and const char **
parameters.
(class format_postprocessor): New class.
(struct pretty_printer::format_decoder): Document the new
parameters.
(struct pretty_printer::m_format_postprocessor): New field.
* tree-diagnostic.c (default_tree_printer): Update for new
bool and const char ** params.
* tree-diagnostic.h (default_tree_printer): Likewise.

gcc/c/ChangeLog:
* c-objc-common.c (c_tree_printer): Gain bool and const char **
parameters.

gcc/c-family/ChangeLog:
* c-format.c (gcc_cxxdiag_char_table): Add 'H' and 'I' to
format_chars.
* c.opt (fdiagnostics-show-template-tree): New option.
(felide-type): New option.

gcc/cp/ChangeLog:
* call.c (perform_implicit_conversion_flags): Convert
"from %qT to %qT" to "from %qH to %qI" in diagnostic.
(print_conversion_rejection): Replace pairs of %qT with
%qH and %qI in various places.
(build_user_type_conversion_1): Likewise.
(build_integral_nontype_arg_conv): Likewise.
(build_conditional_expr_1): Likewise.
(convert_like_real): Likewise.
(convert_arg_to_ellipsis): Likewise.
(joust): Likewise.
(initialize_reference): Likewise.
* cvt.c (cp_convert_to_pointer): Likewise.
(cp_convert_to_pointer): Likewise.
(convert_to_reference): Likewise.
(ocp_convert): Likewise.
* error.c (cp_printer): Gain bool and const char ** parameters.
(struct deferred_printed_type): New struct.
(class cxx_format_postprocessor): New class.
(cxx_initialize_diagnostics): Wire up a cxx_format_postprocessor
to pp->m_format_postprocessor.
(comparable_template_types_p): New function.
(newline_and_indent): New function.
(arg_to_string): New function.
(print_nonequal_arg): New function.
(print_template_differences): New function.
(type_to_string_with_compare): New function.
(print_template_tree_comparison): New function.
(append_formatted_chunk): New function.
(add_quotes): New function.
(cxx_format_postprocessor::handle): New function.
(defer_phase_2_of_type_diff): New function.
(cp_printer): Add "quoted" and "buffer_ptr" params.  Implement
%H and %I.
* typeck.c (cp_build_binary_op): Replace pairs of %qT with
%qH and %qI in various places.
(convert_member_func_to_ptr): Likewise.
(build_reinterpret_cast_1): Likewise.
(convert_for_assignment): Likewise.
* typeck2.c (check_narrowing): Likewise.

gcc/fortran/ChangeLog:
* error.c (gfc_format_decoder): Update for new bool and
const char ** params.

gcc/testsuite/ChangeLog:
* g++.dg/plugin/plugin.exp (plugin_test_list): Add...
* g++.dg/plugin/show-template-tree-color-no-elide-type.C: New
test case.
* g++.dg/plugin/show-template-tree-color.C: New test case.
* g++.dg/plugin/show_template_tree_color_plugin.c: New plugin.
* g++.dg/template/show-template-tree-2.C: New test case.
* g++.dg/template/show-template-tree-3.C: New test case.
* g++.dg/template/show-template-tree-4.C: New test case.
* g++.dg/template/show-template-tree-no-elide-type.C: New test case.
* g++.dg/template/show-template-tree.C: New test case.

From-SVN: r248698

7 years agoRemove gen_cell_microcode, warn_cell_microcode
Segher Boessenkool [Tue, 30 May 2017 19:34:36 +0000 (21:34 +0200)]
Remove gen_cell_microcode, warn_cell_microcode

-mno-gen-cell-microcode is a pain to handle correctly: it causes
different code generation for some very basic patterns, even patterns
specific to that option.  It also requires marking up many patterns,
which is a pain when adding new patterns or modifying existing ones
(first non-trivial step is finding the Cell BE manual!)

-mwarn-cell-microcode is very expensive, even more so after my recent
fix for PR43763; and it used to ICE for seven years before that fix.

This patch removes both these command line options (it leaves the
positive form of -mgen-cell-microcode, doing nothing, for
compatibility).

Where cc_reg_not_micro_cr0_operand was used, we now get the regular
cc_reg_not_cr0_operand.

One testcase used -mgen-cell-microcode and one its negation; both
are adjusted.

* config/rs6000/predicates.md (cc_reg_not_micro_cr0_operand): Delete.
(lwa_operand): Delete rs6000_gen_cell_microcode test.
* config/rs6000/rs6000.c (rs6000_option_override_internal): Delete
rs6000_gen_cell_microcode code.
(rs6000_final_prescan_insn): Delete.
(rs6000_opt_vars): Delete the "gen-cell-microcode" and
"warn-cell-microcode" entries.
* config/rs6000/rs6000.h (FINAL_PRESCAN_INSN): Delete.
* config/rs6000/rs6000.md: Delete rs6000_gen_cell_microcode tests
throughout.  Change cc_reg_not_micro_cr0_operand to
cc_reg_not_cr0_operand throughout.
(*extendhi<mode>2_noload): Delete.
* config/rs6000/rs6000.opt (mgen-cell-microcode): Replace by stub.
(mwarn-cell-microcode): Delete.
* doc/invoke.texi (RS/6000 and PowerPC Options): Delete
-mgen-cell-microcode and -mwarn-cell-microcode.

gcc/testsuite/
* gcc.target/powerpc/shift-dot.c: Delete -mgen-cell-microcode from
dg-options.
* gfortran.dg/pr80107.f: Delete testcase.

From-SVN: r248695

7 years agoKill IDENTIFIER_NAMESPACE_BINDINGS
Nathan Sidwell [Tue, 30 May 2017 19:12:35 +0000 (19:12 +0000)]
Kill IDENTIFIER_NAMESPACE_BINDINGS

Kill IDENTIFIER_NAMESPACE_BINDINGS
* cp-tree.h (lang_identifier): Delete namespace_bindings.
(IDENTIFIER_NAMESPACE_BINDINGS): Delete.
(lang_decl_ns): Add bindings.
(DECL_NAMESPACE_BINDINGS): New.
* lex.c (retrofit_lang_decl): Create namespace hash table.
* name-lookup.c (find_namespace_slot): Change to use hash-map.
* ptree.c (cxx_print_binding): Delete.
(cxx_print_identifier): Remove NAMESPACE_BINDING printing.

From-SVN: r248694

7 years agocp-tree.def (OVERLOAD): Fix comment.
Nathan Sidwell [Tue, 30 May 2017 17:48:57 +0000 (17:48 +0000)]
cp-tree.def (OVERLOAD): Fix comment.

* cp-tree.def (OVERLOAD): Fix comment.
* cp-tree.h: Fix comments and whitespace.
* error.c (dump_decl): Use pp_cxx_colon_colon, ovl_scope.
* name-lookup.c (add_decl_to_level): Assert not class.
(check_local_shadow): Use OVL_P.
(pushdecl_with_scope_1): Rename to ...
(do_pushdecl_with_Scope): ... here.
(do_nonmember_using_decl): Use qualified_namespace_lookup return
value.
(push_class_level_binding_1): Use OVL_P.
(pushdecl_namespace_level): Use do_pushdecl_with_scope.
(pushtag_1): Rename to ...
(do_pushtag): ... here.  Adjust do_pushdecl_with_scope call.
(pushtag): Adjust.
(store_class_bindings): Do not time here.
* name-lookup.h (pushdecl_outermost_localscope): Reorder.
* pt.c (listify): Declare argvec at point of initialization.

From-SVN: r248693

7 years agoChangeLog: Add missing entry.
Uros Bizjak [Tue, 30 May 2017 17:25:43 +0000 (19:25 +0200)]
ChangeLog: Add missing entry.

* ChangeLog: Add missing entry.
* testsuite/ChangeLog: Ditto.

From-SVN: r248692

7 years agore PR target/80833 (32-bit x86 causes store-forwarding stalls for int64_t -> xmm)
Uros Bizjak [Tue, 30 May 2017 17:18:25 +0000 (19:18 +0200)]
re PR target/80833 (32-bit x86 causes store-forwarding stalls for int64_t -> xmm)

PR target/80833
* config/i386/constraints.md (Yd): New constraint.
(Ye): Ditto.
* config/i386/i386.md (*movti_internal): Add (?r, Ye)
and (?Yd, r) alternatives.  Update insn attributes.
* config/i386/i386.md (*movti_internal): Add (?r, *Ye)
and (?*Yd, r) alternatives.  Update insn attributes.
(double-mode inter-unit splitters): Add new GR<->XMM splitters.

testsuite/ChangeLog:

PR target/80833
* gcc.target/i386/pr80833-1.c: New test.
* gcc.target/i386/pr80833-2.c: Ditto.

From-SVN: r248691

7 years agogimplify_modify_expr: avoid DECL_DEBUG_EXPR links across functions
Pierre-Marie de Rodat [Tue, 30 May 2017 15:34:00 +0000 (15:34 +0000)]
gimplify_modify_expr: avoid DECL_DEBUG_EXPR links across functions

An upcoming patch exposes a bug in gimplify_modify_expr.  There, we try
not to create DECL_DEBUG_EXPR links across functions, however we don't
check that *FROM_P actually belongs to the current function before
modifying it.  This patch fixes this oversight.

gcc/

* gimplify.c (gimplify_modify_expr): Don't create a
DECL_DEBUG_EXPR link if *FROM_P does not belong to the current
function.

From-SVN: r248688

7 years agore PR c++/80913 (Infinite loop in cc1plus with stat hack patch)
Nathan Sidwell [Tue, 30 May 2017 14:43:45 +0000 (14:43 +0000)]
re PR c++/80913 (Infinite loop in cc1plus with stat hack patch)

PR c++/80913
* name-lookup.c (add_decl_to_level): Assert not making a circular
chain.
(update_binding): Don't prematurely slide artificial decl.

* g++.dg/lookup/pr80913.C: New.

From-SVN: r248687

7 years agoFix ARM bootstrap failure due to an odd warning:
Wilco Dijkstra [Tue, 30 May 2017 14:29:55 +0000 (14:29 +0000)]
Fix ARM bootstrap failure due to an odd warning:

/src/gcc/gcc/config/arm/arm-builtins.c: In function 'rtx_def* arm_expand_builtin(tree, rtx, rtx, machine_mode, int)':
/src/gcc/gcc/config/arm/arm-builtins.c:3056:46: error: type qualifiers ignored on cast result type [-Werror=ignored-qualifiers]
     if (d->code == (const enum arm_builtins) fcode)
                                              ^~~~~

Avoid the warning by removing const, and bootstrap is OK again.

Committed as trivial patch.

    gcc/
* config/arm/arm-builtins.c (arm_expand_builtin): Remove const.

From-SVN: r248686

7 years agotree-vectorizer.h (struct _stmt_vec_info): Add reduc_type and reduc_def fields.
Richard Biener [Tue, 30 May 2017 13:21:44 +0000 (13:21 +0000)]
tree-vectorizer.h (struct _stmt_vec_info): Add reduc_type and reduc_def fields.

2017-05-30  Richard Biener  <rguenther@suse.de>

* tree-vectorizer.h (struct _stmt_vec_info): Add reduc_type
and reduc_def fields.
(STMT_VINFO_REDUC_TYPE): New define.
(STMT_VINFO_REDUC_DEF): Likewise.
(vect_force_simple_reduction): Adjust prototype.
* tree-vect-loop.c (vect_analyze_scalar_cycles_1): Adjust.
(vect_is_simple_reduction): Remove check_reduction argument.
(vect_force_simple_reduction): Adjust and set
STMT_VINFO_REDUC_TYPE and STMT_VINFO_REDUC_DEF.
(vectorizable_reduction): Do not re-do reduction analysis
but use STMT_VINFO_REDUC_TYPE and STMT_VINFO_REDUC_DEF.
* tree-parloops.c (gather_scalar_reductions): Adjust.

From-SVN: r248685

7 years agot-vxworks (LIBGCC2_INCLUDES): Remove extraneous dollar sign before $(MULTIDIR).
Olivier Hainque [Tue, 30 May 2017 12:37:39 +0000 (12:37 +0000)]
t-vxworks (LIBGCC2_INCLUDES): Remove extraneous dollar sign before $(MULTIDIR).

2017-05-30  Olivier Hainque  <hainque@adacore.com>

libgcc/
* config/t-vxworks (LIBGCC2_INCLUDES): Remove extraneous
dollar sign before $(MULTIDIR).

From-SVN: r248684

7 years agore PR libgomp/80822 (libgomp incorrect affinity when OMP_PLACES=threads)
Jakub Jelinek [Tue, 30 May 2017 12:05:30 +0000 (14:05 +0200)]
re PR libgomp/80822 (libgomp incorrect affinity when OMP_PLACES=threads)

PR libgomp/80822
* config/linux/affinity.c (gomp_affinity_init_level_1): New function.
(gomp_affinity_init_level): Use it.  Always analyze the core and thread
sibling lists, depending on level just pick up what CPUs to put
together into a place vs. whether add multiple ordered places.

From-SVN: r248683

7 years agore PR tree-optimization/80901 (ICE on valid code at -Os and above on x86_64-linux...
Richard Biener [Tue, 30 May 2017 11:08:36 +0000 (11:08 +0000)]
re PR tree-optimization/80901 (ICE on valid code at -Os and above on x86_64-linux-gnu: in verify_loop_structure, at cfgloop.c:1644)

2017-05-30  Richard Biener  <rguenther@suse.de>

PR middle-end/80901
* cfgexpand.c (expand_gimple_cond): Match up loop fixup with
split_edge code.

* gcc.dg/torture/pr80901.c: New testcase.

From-SVN: r248681

7 years agoVector peeling cost model 6/6
Robin Dapp [Tue, 30 May 2017 11:02:14 +0000 (11:02 +0000)]
Vector peeling cost model 6/6

gcc/ChangeLog:

2017-05-24  Robin Dapp  <rdapp@linux.vnet.ibm.com>

* tree-vect-data-refs.c (vect_get_peeling_costs_all_drs):
Introduce unknown_misalignment parameter and remove vf.
(vect_peeling_hash_get_lowest_cost):
Pass unknown_misalignment parameter.
(vect_enhance_data_refs_alignment):
Fix unsupportable data ref treatment.

From-SVN: r248680

7 years agoVector peeling cost model 5/6
Robin Dapp [Tue, 30 May 2017 11:00:50 +0000 (11:00 +0000)]
Vector peeling cost model 5/6

gcc/testsuite/ChangeLog:

2017-05-30  Robin Dapp  <rdapp@linux.vnet.ibm.com>

* gcc.target/s390/vector/vec-nopeel-2.c: New test.

From-SVN: r248679

7 years agoVector peeling cost model 4/6
Robin Dapp [Tue, 30 May 2017 10:59:07 +0000 (10:59 +0000)]
Vector peeling cost model 4/6

gcc/ChangeLog:

2017-05-30  Robin Dapp  <rdapp@linux.vnet.ibm.com>

* tree-vect-data-refs.c (vect_get_data_access_cost):
Workaround for SLP handling.
(vect_enhance_data_refs_alignment):
Compute costs for doing no peeling at all, compare to the best
peeling costs so far and avoid peeling if cheaper.

From-SVN: r248678

7 years agoVector peeling cost model 3/6
Robin Dapp [Tue, 30 May 2017 10:57:53 +0000 (10:57 +0000)]
Vector peeling cost model 3/6

gcc/ChangeLog:

2017-05-30  Robin Dapp  <rdapp@linux.vnet.ibm.com>

* tree-vect-data-refs.c (vect_peeling_hash_choose_best_peeling):
Return peeling info and set costs to zero for unlimited cost
model.
(vect_enhance_data_refs_alignment): Also inspect all datarefs
with unknown misalignment. Compute and costs for unknown
misalignment, compare them to the costs for known misalignment
and choose the cheapest for peeling.

From-SVN: r248677

7 years agoVector peeling cost model 2/6
Robin Dapp [Tue, 30 May 2017 10:56:15 +0000 (10:56 +0000)]
Vector peeling cost model 2/6

gcc/ChangeLog:

2017-05-30  Robin Dapp  <rdapp@linux.vnet.ibm.com>

* tree-vect-data-refs.c (vect_update_misalignment_for_peel): Rename.
(vect_get_peeling_costs_all_drs): Create function.
(vect_peeling_hash_get_lowest_cost):
Use vect_get_peeling_costs_all_drs.
(vect_peeling_supportable): Create function.
(vect_enhance_data_refs_alignment): Use vect_peeling_supportable.

From-SVN: r248676

7 years agoVector peeling cost model 1/6
Robin Dapp [Tue, 30 May 2017 10:53:25 +0000 (10:53 +0000)]
Vector peeling cost model 1/6

gcc/ChangeLog:

2017-05-30  Robin Dapp  <rdapp@linux.vnet.ibm.com>

* tree-vect-data-refs.c (vect_compute_data_ref_alignment): Create
DR_HAS_NEGATIVE_STEP.
(vect_update_misalignment_for_peel): Define DR_MISALIGNMENT.
(vect_enhance_data_refs_alignment): Use.
(vect_duplicate_ssa_name_ptr_info): Use.
* tree-vectorizer.h (dr_misalignment): Use.
(known_alignment_for_access_p): Use.

From-SVN: r248675

7 years agore PR target/78838 (msp430 option -mcode-region=either, -ffunction-sections, and...
Jozef Lawrynowicz [Tue, 30 May 2017 10:49:29 +0000 (10:49 +0000)]
re PR target/78838 (msp430 option -mcode-region=either, -ffunction-sections, and interrupt function attributes cause incorrect section to be created)

PR target/78838
gcc * config/msp430/msp430.c (gen_prefix): Return NULL when section name is
.lowtext.
(has_section_name): New function.

testsuite * gcc.target/msp430/interrupt_fn_placement.c: New test.

From-SVN: r248674

7 years agoFix parenthesis in auto-profile.c (PR other/80909).
Martin Liska [Tue, 30 May 2017 08:02:03 +0000 (10:02 +0200)]
Fix parenthesis in auto-profile.c (PR other/80909).

2017-05-30  Martin Liska  <mliska@suse.cz>

PR other/80909
* auto-profile.c (get_function_decl_from_block): Fix
parenthesis.

From-SVN: r248647

7 years agore PR tree-optimization/80876 (ICE in verify_loop_structure, at cfgloop.c:1644 (error...
Richard Biener [Tue, 30 May 2017 07:49:00 +0000 (07:49 +0000)]
re PR tree-optimization/80876 (ICE in verify_loop_structure, at cfgloop.c:1644 (error: loop 1's latch does not have an edge to its header))

2017-05-30  Richard Biener  <rguenther@suse.de>

PR middle-end/80876
* cfgexpand.c (expand_gimple_cond): Fixup preserving loops again.

* gcc.dg/torture/pr80876.c: New testcase.

From-SVN: r248633

7 years agoRemove dump_file_info::dump_file_info and replace it with macro.
Martin Liska [Tue, 30 May 2017 07:35:23 +0000 (09:35 +0200)]
Remove dump_file_info::dump_file_info and replace it with macro.

2017-05-30  Martin Liska  <mliska@suse.cz>

* dumpfile.c: Use newly added macro DUMP_FILE_INFO.
* dumpfile.h (struct dump_file_info): Remove ctors.

From-SVN: r248617

7 years agoCompare predictor values with these defined in predict.def.
Martin Liska [Tue, 30 May 2017 07:16:31 +0000 (09:16 +0200)]
Compare predictor values with these defined in predict.def.

2017-05-30  Martin Liska  <mliska@suse.cz>

* analyze_brprob.py: Add new argument to parse and modify
predict.def file.
* analyze_brprob_spec.py: Likewise.

From-SVN: r248600

7 years agoFix coding style.
Martin Liska [Tue, 30 May 2017 07:16:04 +0000 (09:16 +0200)]
Fix coding style.

2017-05-30  Martin Liska  <mliska@suse.cz>

* predict.def: Fix GNU coding style.

From-SVN: r248599

7 years agoDaily bump.
GCC Administrator [Tue, 30 May 2017 00:16:17 +0000 (00:16 +0000)]
Daily bump.

From-SVN: r248591

7 years agogcc: xtensa: fix unused parameter warning
Max Filippov [Mon, 29 May 2017 23:03:52 +0000 (23:03 +0000)]
gcc: xtensa: fix unused parameter warning

2017-05-28  Max Filippov  <jcmvbkbc@gmail.com>
gcc/
* config/xtensa/xtensa.c (xtensa_initial_elimination_offset):
Mark 'to' argument with ATTRIBUTE_UNUSED.

From-SVN: r248587

7 years agogcc: xtensa: fix fprintf format specifiers
Max Filippov [Mon, 29 May 2017 23:02:36 +0000 (23:02 +0000)]
gcc: xtensa: fix fprintf format specifiers

HOST_WIDE_INT may not be long as assumed in print_operand and
xtensa_emit_call. Use HOST_WIDE_INT_PRINT_DEC/HOST_WIDE_INT_PRINT_HEX
format strings instead of %ld/0x%lx. This fixes incorrect assembly code
generation by the compiler running on armhf host.

2017-05-29  Max Filippov  <jcmvbkbc@gmail.com>
gcc/
* config/xtensa/xtensa.c (xtensa_emit_call): Use
HOST_WIDE_INT_PRINT_HEX instead of 0x%lx format string.
(print_operand): Use HOST_WIDE_INT_PRINT_DEC instead of %ld
format string.

From-SVN: r248586

7 years agoinstall.texi (Options specification): Restore entry of --enable-sjlj-exceptions.
Eric Botcazou [Mon, 29 May 2017 21:08:02 +0000 (21:08 +0000)]
install.texi (Options specification): Restore entry of --enable-sjlj-exceptions.

* doc/install.texi (Options specification): Restore entry of
--enable-sjlj-exceptions.

From-SVN: r248582

7 years ago[libcc1] drop unused field from C++ lang_identifier
Alexandre Oliva [Mon, 29 May 2017 20:23:43 +0000 (20:23 +0000)]
[libcc1] drop unused field from C++ lang_identifier

for  gcc/cp/ChangeLog

* cp-tree.h (lang_identifier): Drop oracle_looked_up, unused.

From-SVN: r248580

7 years agoPR c++/80891 (#1,#5)
Nathan Sidwell [Mon, 29 May 2017 19:45:42 +0000 (19:45 +0000)]
PR c++/80891 (#1,#5)

PR c++/80891 (#1,#5)
* cp-tree.h (lookup_maybe_add): Add DEDUPING argument.
* name-lookup.c (name_lookup): Add deduping field.
(name_lookup::preserve_state, name_lookup::restore_state): Deal
with deduping.
(name_lookup::add_overload): New.
(name_lookup::add_value, name_lookup::add_fns): Call add_overload.
(name_lookup::search_adl): Set deduping.  Don't unmark here.
* pt.c (most_specialized_instantiation): Revert previous change,
Assert not given duplicates.
* tree.c (lookup_mark): Just mark the underlying decls.
(lookup_maybe_add): Dedup using marked decls.

PR c++/80891 (#5)
* g++.dg/lookup/pr80891-5.C: New.

From-SVN: r248578

7 years agore PR fortran/53029 (missed optimization in internal read (without implied-do-loop))
Jerry DeLisle [Mon, 29 May 2017 19:17:57 +0000 (19:17 +0000)]
re PR fortran/53029 (missed optimization in internal read (without implied-do-loop))

2017-05-29  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

PR libgfortran/53029
* list_read.c (list_formatted_read_scala): Set the err return
value to the common.flags error values.

* gfortran.dg/read_5.f90: New test.

From-SVN: r248577

7 years agoPR c++/80891 (#4)
Nathan Sidwell [Mon, 29 May 2017 16:50:41 +0000 (16:50 +0000)]
PR c++/80891 (#4)

PR c++/80891 (#4)
* ptree.c (cxx_print_xnode): Show internal OVERLOAD structure.
* tree.c (ovl_insert, ovl_iterator_remove_node): Fix copying
assert.

PR c++/80891 (#4)
* g++.dg/lookup/pr80891-4.C: New.

From-SVN: r248576

7 years agoStat hack representation
Nathan Sidwell [Mon, 29 May 2017 15:01:20 +0000 (15:01 +0000)]
Stat hack representation

Stat hack representation
* name-lookup.c (STAT_HACK_P, STAT_TYPE, STAT_DECL)
MAYBE_STAT_DECL, MAYBE_STAT_TYPE): New.
(stat_hack): New.
(find_namespace_binding): Replace with ...
(find_namespace_slot): ... this.
(find_namespace_value): New.
(name_lookup::search_namespace_only,
name_lookup::adl_namespace_only): Adjust.
(update_binding): Add SLOT parameter, adjust.
(check_local_shadow): Use find_namespace_value.
(set_local_extern_decl_linkage): Likewise.
(do_pushdecl): Adjust for namespace slot.
(push_local_binding): Assert not a namespace binding.
(check_for_out_of_scope_variable): Use find_namespace_value.
(set_identifier_type_value_with_scope): Likewise.
(get_namespace_binding): Likewise.
(set_namespace_binding): Delete.
(set_global_binding): Directly update the binding.
(finish_namespace_using_decl): Likewise.
(lookup_type_scope_1): Use find_namespace_slot and update.
(do_push_nested_namespace): Use find_namespace_value.

From-SVN: r248574

7 years agoPR c++/80891 (#1)
Nathan Sidwell [Mon, 29 May 2017 14:08:04 +0000 (14:08 +0000)]
PR c++/80891 (#1)

PR c++/80891 (#1)
* pt.c (most_specialized_instantiation): Cope with duplicate
instantiations.

PR c++/80891 (#1)
* g++.dg/lookup/pr80891-1.C: New.

From-SVN: r248573

7 years agoPR c++/80891 (#3)
Nathan Sidwell [Mon, 29 May 2017 12:52:58 +0000 (12:52 +0000)]
PR c++/80891 (#3)

PR c++/80891 (#3)
* cp-tree.h (build_min_nt_call_vec): Declare.
* decl.c (build_offset_ref_call_from_tree): Call it.
* parser.c (cp_parser_postfix_expression): Likewise.
* pt.c (tsubst_copy_and_build): Likewise.
* semantics.c (finish_call_expr): Likewise.
* tree.c (build_min_nt_loc): Keep unresolved lookups.
(build_min): Likewise.
(build_min_non_dep): Likewise.
(build_min_non_dep_call_vec): Likewise.
(build_min_nt_call_vec): New.

PR c++/80891 (#3)
* g++.dg/lookup/pr80891-3.C: New.

From-SVN: r248571

7 years agoPR c++/80891 (#2)
Nathan Sidwell [Mon, 29 May 2017 11:51:13 +0000 (11:51 +0000)]
PR c++/80891 (#2)

PR c++/80891 (#2)
* tree.c (ovl_copy): Adjust assert, copy OVL_LOOKUP.
(ovl_used): New.
(lookup_keep): Call it.

PR c++/80891 (#2)
* g++.dg/lookup/pr80891-2.C: New.

From-SVN: r248570

7 years agocheck_GNU_style_lib.py: Fix trailing whitespace check
Tom de Vries [Mon, 29 May 2017 07:31:11 +0000 (07:31 +0000)]
check_GNU_style_lib.py: Fix trailing whitespace check

2017-05-29  Tom de Vries  <tom@codesourcery.com>

* check_GNU_style_lib.py (TrailingWhitespaceCheck.check): Assert no
trailing eol.
(TrailingWhitespaceTest): New unit test.
(check_GNU_style_file): Remove eol before checking.

From-SVN: r248556

7 years agocheck_GNU_style.py: Read stdin if file argument is '-'
Tom de Vries [Mon, 29 May 2017 07:31:02 +0000 (07:31 +0000)]
check_GNU_style.py: Read stdin if file argument is '-'

2017-05-29  Tom de Vries  <tom@codesourcery.com>

* check_GNU_style_lib.py (check_GNU_style_file): Treat file argument as
file handle.  Add and handle file_encoding argument.
* check_GNU_style.py (main): Handle '-' file argument.  Call
check_GNU_style_file with file handle as argument.

From-SVN: r248555

7 years agocheck_GNU_style_lib.py: Suggest to install all missing pip3 packages at once
Tom de Vries [Mon, 29 May 2017 07:30:47 +0000 (07:30 +0000)]
check_GNU_style_lib.py: Suggest to install all missing pip3 packages at once

Instead of:
...
$ ./contrib/check_GNU_style.py
termcolor module is missing (run: pip3 install termcolor)
$ pip3 install termcolor
$ ./contrib/check_GNU_style.py
unidiff module is missing (run: pip3 install unidiff)
$ pip3 install unidiff
$
...

Do:
...
$ ./contrib/check_GNU_style.py
termcolor and unidiff modules are missing (run: pip3 install termcolor unidiff)
$ pip3 install termcolor unidiff
$
...

2017-05-29  Tom de Vries  <tom@codesourcery.com>

* check_GNU_style_lib.py: Use import_pip3 to import pip3 packages.
(import_pip3): New function.

From-SVN: r248554

7 years agore PR fortran/37131 (inline matmul for small matrix sizes)
Thomas Koenig [Mon, 29 May 2017 06:03:23 +0000 (06:03 +0000)]
re PR fortran/37131 (inline matmul for small matrix sizes)

2017-05-29  Thomas Koenig  <tkoenig@gcc.gnu.org>

PR fortran/37131
* frontend-passes.c (check_conjg_transpose_variable):
Add prototype.
(has_dimen_vector_ref):  Likewise
(matmul_temp_args):  New function. Add prototype.
(optimize_namespace):  Call matmul_temp_args.

2017-05-29  Thomas Koenig  <tkoenig@gcc.gnu.org>

PR fortran/37131
* gfortran.dg/promotion_2.f90: Add -finline-matmul-limit=0 to
flags.
* gfortran.dg/transpose_optimization_1.f90: Likewise.
* gfortran.dg/inline_matmul_17.f90:  New test.

From-SVN: r248553

7 years agoDaily bump.
GCC Administrator [Mon, 29 May 2017 00:16:23 +0000 (00:16 +0000)]
Daily bump.

From-SVN: r248552

7 years agore PR c++/80737 (variant<any> as class member resulting to compile errors)
Tim Shen [Sun, 28 May 2017 21:27:30 +0000 (21:27 +0000)]
re PR c++/80737 (variant<any> as class member resulting to compile errors)

  PR libstdc++/80737
  * include/std/variant(variant::variant): SFINAE on is_same first.
  * testsuite/20_util/variant/any.cc: test case.

From-SVN: r248548

7 years agoFix libgfortran FMA3/FMA4 tests
Rainer Orth [Sun, 28 May 2017 19:12:45 +0000 (19:12 +0000)]
Fix libgfortran FMA3/FMA4 tests

* acinclude.m4 (LIBGFOR_CHECK_FMA3): Use test from
check_effective_target_fma in gcc.target/i386/i386.exp.
(LIBGFOR_CHECK_FMA4): Use test from check_effective_target_fma4.
* configure: Regenerate.

From-SVN: r248547

7 years agofrontend-passes.c (matmul_lhs_realloc): Correct allocation size for case A1B2.
Thomas Koenig [Sun, 28 May 2017 14:02:57 +0000 (14:02 +0000)]
frontend-passes.c (matmul_lhs_realloc): Correct allocation size for case A1B2.

2017-05-28  Thomas Koenig  <tkoenig@gcc.gnu.org>

* frontend-passes.c (matmul_lhs_realloc):  Correct
allocation size for case A1B2.

2017-05-28  Thomas Koenig  <tkoenig@gcc.gnu.org>

* gfortran.dg/matmul_bounds_12.f90:  New test.

From-SVN: r248546

7 years agoDaily bump.
GCC Administrator [Sun, 28 May 2017 00:16:31 +0000 (00:16 +0000)]
Daily bump.

From-SVN: r248544

7 years agoRevert:
Michael Eager [Sat, 27 May 2017 18:29:40 +0000 (18:29 +0000)]
Revert:

2016-01-21  Ajit Agarwal  <ajitkum@xilinx.com>

See https://gcc.gnu.org/ml/gcc/2017-05/msg00221.html.

* config/microblaze/microblaze.h
(FIXED_REGISTERS): Update in macro.
(CALL_USED_REGISTERS): Update in macro.

From-SVN: r248540

7 years agod-demangle.c (dlang_identifier): Prefix mangled init symbols with `initializer for'.
Iain Buclaw [Sat, 27 May 2017 11:30:22 +0000 (11:30 +0000)]
d-demangle.c (dlang_identifier): Prefix mangled init symbols with `initializer for'.

libiberty/ChangeLog:

* d-demangle.c (dlang_identifier): Prefix mangled init symbols
with `initializer for'.
* testsuite/demangle-expected: Update tests.

From-SVN: r248539