jakub [Wed, 27 Apr 2016 12:22:47 +0000 (12:22 +0000)]
Backported from mainline
2016-04-19 Jakub Jelinek <jakub@redhat.com>
PR middle-end/70680
* gimplify.c (gimplify_omp_for): Call omp_notice_variable for
implicitly linear or lastprivate iterator on the outer context.
* testsuite/libgomp.c/pr70680-1.c: New test.
* testsuite/libgomp.c/pr70680-2.c: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-6-branch@235489
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kyukhin [Wed, 27 Apr 2016 12:09:45 +0000 (12:09 +0000)]
AVX-512. PR target/70728. Use separate constraint for AVX-512BW
PR target/70728
gcc/
* gcc/config/i386/sse.md (define_insn "<shift_insn><mode>3<mask_name>"):
Extract AVX-512BW constraint from AVX.
gcc/testsuite/
* gcc.target/i386/pr70728.c: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-6-branch@235487
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jakub [Wed, 27 Apr 2016 10:38:16 +0000 (10:38 +0000)]
* BASE-VER: Set to 6.1.1.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-6-branch@235476
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gccadmin [Wed, 27 Apr 2016 08:20:21 +0000 (08:20 +0000)]
Update ChangeLog and version files for release
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-6-branch@235473
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jakub [Wed, 27 Apr 2016 07:49:40 +0000 (07:49 +0000)]
* gennews (files): Add files for GCC 6.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-6-branch@235471
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ebotcazou [Wed, 27 Apr 2016 07:39:18 +0000 (07:39 +0000)]
* gcc-interface/Makefile.in (x86 GNU/Hurd): Use s-osinte-gnu.adb.
* s-osinte-gnu.ads: Small tweaks.
* s-osinte-gnu.adb: New file.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-6-branch@235468
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gccadmin [Wed, 27 Apr 2016 00:16:13 +0000 (00:16 +0000)]
Daily bump.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-6-branch@235463
138bc75d-0d04-0410-961f-
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jakub [Tue, 26 Apr 2016 06:08:20 +0000 (06:08 +0000)]
PR bootstrap/70704
* pt.c (build_non_dependent_expr): Temporarily disable flag_checking
guarded code.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-6-branch@235429
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gccadmin [Tue, 26 Apr 2016 00:16:15 +0000 (00:16 +0000)]
Daily bump.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-6-branch@235427
138bc75d-0d04-0410-961f-
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jsm28 [Mon, 25 Apr 2016 20:41:36 +0000 (20:41 +0000)]
* sv.po: Update.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-6-branch@235420
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rguenth [Mon, 25 Apr 2016 10:50:46 +0000 (10:50 +0000)]
2016-04-25 Richard Biener <rguenther@suse.de>
PR tree-optimization/70780
* tree-ssa-pre.c (compute_antic_aux): Also return true if the block
wasn't visited yet.
(compute_antic): Mark blocks with abnormal preds as visited as
they have a final empty antic-in solution already.
* gcc.dg/torture/pr70780.c: New testcase.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-6-branch@235408
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gccadmin [Mon, 25 Apr 2016 00:16:20 +0000 (00:16 +0000)]
Daily bump.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-6-branch@235400
138bc75d-0d04-0410-961f-
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jvdelisle [Sun, 24 Apr 2016 05:07:21 +0000 (05:07 +0000)]
2016-04-23 Jerry DeLisle <jvdelisle@gcc.gnu.org>
PR libgfortran/70684
* io/list_read (check_buffers): Add '\r' to check for end of line.
factor.
* gfortran.dg/list_read_14.f90: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-6-branch@235391
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gccadmin [Sun, 24 Apr 2016 00:16:19 +0000 (00:16 +0000)]
Daily bump.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-6-branch@235389
138bc75d-0d04-0410-961f-
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gccadmin [Sat, 23 Apr 2016 00:16:17 +0000 (00:16 +0000)]
Daily bump.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-6-branch@235378
138bc75d-0d04-0410-961f-
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jason [Fri, 22 Apr 2016 15:39:03 +0000 (15:39 +0000)]
PR c++/68206 - Fix constexpr diagnostics with loops.
PR c++/68530
* constexpr.c (potential_constant_expression_1): Handle LOOP_EXPR
and GOTO_EXPR.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-6-branch@235369
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jason [Fri, 22 Apr 2016 15:38:57 +0000 (15:38 +0000)]
PR c++/70522 - fix N4381 customization points
* name-lookup.c (qualified_lookup_using_namespace): Look through
hidden names.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-6-branch@235368
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hjl [Fri, 22 Apr 2016 13:17:26 +0000 (13:17 +0000)]
Replace -skip-rax-setup with -mskip-rax-setup
Backport from mainline
* doc/invoke.texi: Replace -skip-rax-setup with -mskip-rax-setup.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-6-branch@235366
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nsz [Fri, 22 Apr 2016 11:09:22 +0000 (11:09 +0000)]
[PATCH 2/2] (header usage fix) include c++ headers in system.h
cherry picked from trunk r235362
2016-04-22 Szabolcs Nagy <szabolcs.nagy@arm.com>
* system.h (list, map, set, vector): Include conditionally.
* auto-profile.c (INCLUDE_MAP, INCLUDE_SET): Define.
* graphite-isl-ast-to-gimple.c (INCLUDE_MAP): Define.
* ipa-icf.c (INCLUDE_LIST): Define.
* config/aarch64/cortex-a57-fma-steering.c (INCLUDE_LIST): Define.
* config/sh/sh.c (INCLUDE_VECTOR): Define.
* config/sh/sh_treg_combine.cc (INCLUDE_ALGORITHM): Define.
(INCLUDE_LIST, INCLUDE_VECTOR): Define.
* cp/logic.cc (INCLUDE_LIST): Define.
* fortran/trans-common.c (INCLUDE_MAP): Define.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-6-branch@235364
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nsz [Fri, 22 Apr 2016 11:08:16 +0000 (11:08 +0000)]
[PATCH 1/2] (header usage fix) remove unused system header includes
cherry picked from trunk r235361
2016-04-22 Szabolcs Nagy <szabolcs.nagy@arm.com>
* auto-profile.c: Remove <string.h> include.
* ipa-icf-gimple.c: Remove <list> include.
* diagnostic.c: Remove <new> include.
* genmatch.c: Likewise.
* pretty-print.c: Likewise.
* toplev.c: Likewise
* c/c-objc-common.c: Likewise.
* cp/error.c: Likewise.
* fortran/error.c: Likewise.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-6-branch@235363
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gccadmin [Fri, 22 Apr 2016 00:16:15 +0000 (00:16 +0000)]
Daily bump.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-6-branch@235356
138bc75d-0d04-0410-961f-
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jsm28 [Thu, 21 Apr 2016 20:59:21 +0000 (20:59 +0000)]
* sv.po: Update.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-6-branch@235350
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jsm28 [Thu, 21 Apr 2016 15:26:49 +0000 (15:26 +0000)]
Regenerate .pot files for GCC 6.
gcc/po:
* gcc.pot: Regenerate.
libcpp/po:
* cpplib.pot: Regenerate.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-6-branch@235343
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amonakov [Thu, 21 Apr 2016 13:42:13 +0000 (13:42 +0000)]
libgomp nvptx plugin: make cuMemFreeHost error non-fatal
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-6-branch@235340
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chefmax [Thu, 21 Apr 2016 12:12:53 +0000 (12:12 +0000)]
Cherry-pick r266868 from upstream.
PR sanitizer/70624
* asan/asan_mac.cc: Cherry pick upstream r266868.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-6-branch@235337
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rguenth [Thu, 21 Apr 2016 11:57:28 +0000 (11:57 +0000)]
2016-04-21 Richard Biener <rguenther@suse.de>
PR middle-end/70747
* fold-const.c (fold_comparison): Return properly typed
constant boolean.
* gcc.dg/pr70747.c: New testcase.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-6-branch@235336
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gccadmin [Thu, 21 Apr 2016 00:16:24 +0000 (00:16 +0000)]
Daily bump.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-6-branch@235300
138bc75d-0d04-0410-961f-
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ktkachov [Wed, 20 Apr 2016 13:38:31 +0000 (13:38 +0000)]
[AArch64] Work around PR target/64971
2016-04-20 Andrew Pinski <apinski@cavium.com>
Kyrylo Tkachov <kyrylo.tkachov@arm.com>
PR target/64971
* config/aarch64/aarch64.md (sibcall): Force call
address to be DImode for ILP32.
(sibcall_value): Likewise.
* gcc.c-torture/compile/pr37433-1.c: New testcase.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-6-branch@235282
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jason [Wed, 20 Apr 2016 13:24:29 +0000 (13:24 +0000)]
* c-cppbuiltin.c (c_cpp_builtins): Fix __cpp_range_based_for.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-6-branch@235280
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jason [Wed, 20 Apr 2016 13:24:17 +0000 (13:24 +0000)]
PR c++/66543 - -Wunused-but-set* false positives
* expr.c (mark_exp_read): Handle NON_DEPENDENT_EXPR.
* pt.c (make_pack_expansion): Call mark_exp_read.
* semantics.c (finish_id_expression): Call mark_type_use in
unevaluated context.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-6-branch@235279
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mpolacek [Wed, 20 Apr 2016 12:48:37 +0000 (12:48 +0000)]
* tree-if-conv.c (is_false_predicate): For NULL_TREE return false
rather than true.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-6-branch@235273
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mpolacek [Wed, 20 Apr 2016 10:08:31 +0000 (10:08 +0000)]
PR tree-optimization/70725
* tree-if-conv.c (is_false_predicate): New function.
(predicate_mem_writes): Use it.
* gcc.dg/pr70725.c: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-6-branch@235252
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rguenth [Wed, 20 Apr 2016 07:21:42 +0000 (07:21 +0000)]
2016-04-20 Richard Biener <rguenther@suse.de>
PR tree-optimization/70726
* tree-vect-stmts.c (vectorizable_shift): Do not use scalar
shift amounts from a pattern stmt operand.
* g++.dg/vect/pr70726.cc: New testcase.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-6-branch@235237
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krebbel [Wed, 20 Apr 2016 07:16:03 +0000 (07:16 +0000)]
PR70674: S/390: Add memory barrier to stack pointer restore from fpr.
This patches fixes a problem with stack variable accesses being
scheduled after the stack pointer restore instructions. In the
testcase this happened with the stack variable 'a' accessed through the
frame pointer.
The existing stack_tie we have in the backend is basically useless
when trying to block stack variable accesses from being scheduled
across an insn. The alias set of stack variables and the frame alias
set usually differ and hence aren't in conflict with each other. The
solution appears to be a magic MEM term with a scratch register which
is handled as a full memory barrier when analyzing scheduling
dependencies.
With the patch a (clobber (mem:BLK (scratch))) is being added to the
restore instruction in order to prevent any memory operations to be
scheduled across the insn. The patch does that only for the one case
where the stack pointer is restored from an FPR. Theoretically this
might happen also in the case where the stack pointer gets restored
using a load multiple. However, triggering that problem with
load-multiple appears to be much harder since the load-multiple will
restore the frame pointer as well. So in order to see the problem a
different call-clobbered register would need to be used as temporary
stack pointer.
Another case which needs to be handled some day is the stack pointer
allocation part. It needs to be a memory barrier as well.
Bootstrapped and regression tested with --with-arch z196 and z13 on
s390 and s390x.
gcc/ChangeLog:
2016-04-20 Andreas Krebbel <krebbel@linux.vnet.ibm.com>
Backport from mainline
2016-04-20 Andreas Krebbel <krebbel@linux.vnet.ibm.com>
PR target/70674
* config/s390/s390.c (s390_restore_gprs_from_fprs): Pick the new
stack_restore_from_fpr pattern when restoring r15.
(s390_optimize_prologue): Strip away the memory barrier in the
parallel when trying to get rid of restore insns.
* config/s390/s390.md ("stack_restore_from_fpr"): New insn
definition for loading the stack pointer from an FPR. Compared to
the normal move insn this pattern includes a full memory barrier.
gcc/testsuite/ChangeLog:
2016-04-20 Andreas Krebbel <krebbel@linux.vnet.ibm.com>
Backport from mainline
2016-04-20 Andreas Krebbel <krebbel@linux.vnet.ibm.com>
PR target/70674
* gcc.target/s390/pr70674.c: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-6-branch@235235
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gccadmin [Wed, 20 Apr 2016 00:16:18 +0000 (00:16 +0000)]
Daily bump.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-6-branch@235229
138bc75d-0d04-0410-961f-
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rguenth [Tue, 19 Apr 2016 13:17:46 +0000 (13:17 +0000)]
2016-04-19 Richard Biener <rguenther@suse.de>
PR tree-optimization/70724
* tree-ssa-sccvn.c (scc_vn_restore_ssa_info): Split SSA info
restoring out from ...
(free_scc_vn): ... here.
* tree-ssa-sccvn.h (scc_vn_restore_ssa_info): Declare.
* tres-ssa-pre.c (pass_pre::execute): Restore SSA info before
tail merging.
(pass_fre::execute): Restore SSA info.
* gcc.dg/torture/pr70724.c: New testcase.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-6-branch@235201
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redi [Tue, 19 Apr 2016 13:06:30 +0000 (13:06 +0000)]
* include/bits/random.h: Fix filename in comment.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-6-branch@235198
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gccadmin [Tue, 19 Apr 2016 00:16:15 +0000 (00:16 +0000)]
Daily bump.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-6-branch@235181
138bc75d-0d04-0410-961f-
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jason [Mon, 18 Apr 2016 19:43:26 +0000 (19:43 +0000)]
PR c++/70690
PR c++/70528
* class.c (type_maybe_constexpr_default_constructor): New.
(type_has_constexpr_default_constructor): Revert.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-6-branch@235171
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jason [Mon, 18 Apr 2016 19:43:19 +0000 (19:43 +0000)]
PR c++/70505
* pt.c (tsubst_baselink): Give the new TEMPLATE_ID_EXPR
unknown_type_node, too.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-6-branch@235170
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ro [Mon, 18 Apr 2016 18:42:41 +0000 (18:42 +0000)]
Update install.texi for GCC 6 on Solaris
* doc/install.texi (Specific, i?86-*-solaris2.10): Update gas and
gld requirements.
(Specific, *-*-solaris2*): Update Solaris 11 bundled gcc
versions.
Mention Solaris 11 packaging changes.
Update gas and gld requirements.
Remove reference to pre-Solaris 10 bug.
(Specific, sparc-sun-solaris2*): Remove reference to pre-Solaris 10
systems and bugs.
(Specific, sparc64-*-solaris2*): Remove reference to bootstrap
with cc.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-6-branch@235163
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mwahab [Mon, 18 Apr 2016 12:18:10 +0000 (12:18 +0000)]
PR target/70711
* config/arm/bpabi.h (BE8_LINK_SPEC): Add entries for armv8+crc,
armv8.1-a and armv8.1-a+crc.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-6-branch@235133
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segher [Mon, 18 Apr 2016 09:15:53 +0000 (09:15 +0000)]
hsa: Fix bootstrap with older host compilers
We didn't have __builtin_swap16 on all targets before GCC 4.8; hsa-brig
tries to use it if the host GCC is 4.6 or up though, breaking bootstrap.
This trivial patch fixes it.
Noticed on gcc22.
* has-brig.c (lendian16): Don't try to use __builtin_bswap16
unless compiling with at least GCC-4.8.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-6-branch@235099
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gccadmin [Mon, 18 Apr 2016 00:16:13 +0000 (00:16 +0000)]
Daily bump.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-6-branch@235089
138bc75d-0d04-0410-961f-
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gccadmin [Sun, 17 Apr 2016 00:16:16 +0000 (00:16 +0000)]
Daily bump.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-6-branch@235069
138bc75d-0d04-0410-961f-
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gccadmin [Sat, 16 Apr 2016 00:16:14 +0000 (00:16 +0000)]
Daily bump.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-6-branch@235057
138bc75d-0d04-0410-961f-
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jason [Fri, 15 Apr 2016 19:53:03 +0000 (19:53 +0000)]
PR c++/70685
* constexpr.c (get_fundef_copy): Handle null *slot.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-6-branch@235046
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jakub [Fri, 15 Apr 2016 15:53:01 +0000 (15:53 +0000)]
PR target/70662
* config/i386/sse.md (define_insn "<avx512>_vec_dup<mode><mask_name>"):
Fix mode size check.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-6-branch@235040
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jakub [Fri, 15 Apr 2016 15:01:08 +0000 (15:01 +0000)]
* BASE-VER: Set to 6.0.1.
* DEV-PHASE: Set to prerelease.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-6-branch@235036
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jakub [Fri, 15 Apr 2016 14:52:49 +0000 (14:52 +0000)]
Create gcc-6-branch
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-6-branch@235034
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jakub [Fri, 15 Apr 2016 14:51:06 +0000 (14:51 +0000)]
PR c++/70594
* constexpr.c (constexpr_call_table): Preserve in GC.
(struct fundef_copy, struct fundef_copies_table_t): Delete.
(fundef_copies_table): Preserve in GC. Change to pointer to
tree->tree hash.
(maybe_initialize_fundef_copies_table): Adjust.
(get_fundef_copy): Return a TREE_LIST. Use non-inserting search.
(save_fundef_copy): Adjust for a TREE_LIST.
(cxx_eval_call_expression): Adjust for a fundef_copy TREE_LIST.
(fini_constexpr): New.
* cp-tree.h (fini_constexpr): Declare.
* decl2.c (c_parse_final_cleanups): Call fini_constexpr.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@235033
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mpolacek [Fri, 15 Apr 2016 14:46:06 +0000 (14:46 +0000)]
PR c/70671
* c-typeck.c (build_unary_op): Pass location down to error and
warning call.
* gcc.dg/bitfld-22.c: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@235032
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amonakov [Fri, 15 Apr 2016 14:26:40 +0000 (14:26 +0000)]
config/nvptx/nvptx.opt (moptimize): Add a period at end of help text.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@235031
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ktkachov [Fri, 15 Apr 2016 13:42:16 +0000 (13:42 +0000)]
[ARM][doc] Document deprecation of pre-ARMv4T architecture revisions
* doc/invoke.texi (ARM Options): Add note on deprecation of pre-ARMv4T
architecture revisions.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@235029
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bernds [Fri, 15 Apr 2016 13:35:12 +0000 (13:35 +0000)]
i386: Don't convert stack operations to pushes if using a redzone.
* config/i386/i386-protos.h (ix86_using_red_zone): Declare.
* config/i386/i386.c (ix86_using_red_zone): No longer static.
* config/i386/i386.md (stack decrement to push peepholes): Guard
with !x86_using_red_zone ().
testsuite/
* gcc.target/i386/pr46470.c: Add -mno-red-zone to dg-options for
x86_64.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@235028
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mpolacek [Fri, 15 Apr 2016 13:15:23 +0000 (13:15 +0000)]
PR c/70651
* c-common.c (build_va_arg): Change two asserts into errors and return
error_mark_node.
* c-c++-common/pr70651.c: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@235027
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jakub [Fri, 15 Apr 2016 13:07:43 +0000 (13:07 +0000)]
PR c++/70675
* tree-pretty-print.c (do_niy): Add FLAGS argument, pass it down
to dump_generic_node.
(NIY): Pass also flags to do_niy.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@235025
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ktkachov [Fri, 15 Apr 2016 12:45:20 +0000 (12:45 +0000)]
[testsuite] PR rtl-optimization/70681: XFAIL ira-shrinkwrap-prep-2.c and pr10474.c tests on arm, powerpc
PR rtl-optimization/70681
* gcc.dg/ira-shrinkwrap-prep-2.c: XFAIL shrinkwrapping
dump scan on arm and powerpc.
* gcc.dg/pr10474.c: Likewise.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@235024
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jakub [Fri, 15 Apr 2016 12:29:32 +0000 (12:29 +0000)]
PR c++/69517
PR c++/70019
PR c++/70588
* g++.dg/cpp1y/vla11.C: Revert for real.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@235021
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jakub [Fri, 15 Apr 2016 12:24:18 +0000 (12:24 +0000)]
PR c/70436
c/
* c-parser.c (c_parser_pragma): Add IF_P argument, pass it down
where needed.
(c_parser_external_declaration, c_parser_struct_or_union_specifier,
c_parser_parameter_declaration, c_parser_compound_statement_nostart,
c_parser_objc_class_instance_variables, c_parser_objc_methodprotolist):
Adjust c_parser_pragma callers.
(c_parser_statement_after_labels): Likewise. Adjust c_parser_cilk_for
caller.
(c_parser_omp_structured_block): Add IF_P argument, pass it down to
c_parser_statement.
(c_parser_oacc_data, c_parser_oacc_host_data, c_parser_oacc_loop,
c_parser_oacc_kernels_parallel, c_parser_omp_critical,
c_parser_omp_simd, c_parser_omp_for, c_parser_omp_master,
c_parser_omp_ordered, c_parser_omp_parallel, c_parser_omp_single,
c_parser_omp_task, c_parser_omp_taskgroup, c_parser_omp_distribute,
c_parser_omp_teams, c_parser_omp_target_data, c_parser_omp_target,
c_parser_omp_taskloop, c_parser_omp_construct, c_parser_cilk_grainsize,
c_parser_cilk_simd, c_parser_cilk_for): Add IF_P argument, pass it
down where needed.
(c_parser_omp_for_loop): Likewise. Clear IF_P if nbraces.
(c_parser_omp_sections_scope): Adjust c_parser_omp_structured_block
calls.
cp/
* parser.c (cp_parser_pragma): Add IF_P argument, pass it down
where needed.
(cp_parser_declaration_seq_opt, cp_parser_member_specification_opt,
cp_parser_objc_interstitial_code, cp_parser_omp_declare_simd,
cp_parser_oacc_routine): Adjust cp_parser_pragma callers.
(cp_parser_statement): Likewise. Adjust cp_parser_cilk_for caller.
(cp_parser_omp_structured_block): Add IF_P argument, pass it down to
cp_parser_statement.
(cp_parser_oacc_data, cp_parser_oacc_host_data, cp_parser_oacc_loop,
cp_parser_oacc_kernels_parallel, cp_parser_omp_critical,
cp_parser_omp_simd, cp_parser_omp_for, cp_parser_omp_master,
cp_parser_omp_ordered, cp_parser_omp_parallel, cp_parser_omp_single,
cp_parser_omp_task, cp_parser_omp_taskgroup, cp_parser_omp_distribute,
cp_parser_omp_teams, cp_parser_omp_target_data, cp_parser_omp_target,
cp_parser_omp_taskloop, cp_parser_omp_construct,
cp_parser_cilk_grainsize, cp_parser_cilk_simd, cp_parser_cilk_for):
Add IF_P argument, pass it down where needed.
(cp_parser_omp_for_loop): Likewise. Clear IF_P if nbraces.
(cp_parser_omp_sections_scope): Adjust cp_parser_omp_structured_block
calls.
testsuite/
* c-c++-common/Wparentheses-1.c: New test.
* c-c++-common/gomp/Wparentheses-1.c: New test.
* c-c++-common/gomp/Wparentheses-2.c: New test.
* c-c++-common/gomp/Wparentheses-3.c: New test.
* c-c++-common/gomp/Wparentheses-4.c: New test.
* c-c++-common/cilk-plus/PS/Wparentheses-1.c: New test.
* c-c++-common/cilk-plus/CK/Wparentheses-1.c: New test.
* c-c++-common/goacc/Wparentheses-1.c: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@235020
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tschwinge [Fri, 15 Apr 2016 11:49:39 +0000 (11:49 +0000)]
Split out OMP constructs' SIMD clone supporting code
gcc/
* omp-low.c (simd_clone_struct_alloc, simd_clone_struct_copy)
(simd_clone_vector_of_formal_parm_types)
(simd_clone_clauses_extract, simd_clone_compute_base_data_type)
(simd_clone_mangle, simd_clone_create)
(simd_clone_adjust_return_type, create_tmp_simd_array)
(simd_clone_adjust_argument_types, simd_clone_init_simd_arrays)
(struct modify_stmt_info, ipa_simd_modify_stmt_ops)
(ipa_simd_modify_function_body, simd_clone_linear_addend)
(simd_clone_adjust, expand_simd_clones, ipa_omp_simd_clone)
(pass_data_omp_simd_clone, class pass_omp_simd_clone)
(pass_omp_simd_clone::gate, make_pass_omp_simd_clone): Move
into...
* omp-simd-clone.c: ... this new file.
(simd_clone_vector_of_formal_parm_types): Make it static.
* Makefile.in (OBJS): Add omp-simd-clone.o.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@235017
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kyukhin [Fri, 15 Apr 2016 08:25:49 +0000 (08:25 +0000)]
AVX-512. Fix mem operand modifier for Intel syntax.
PR target/70662
gcc/
* config/i386/sse.md: Use proper memory operand
modifiers.
testsuite/gcc/
* gcc.target/i386/pr70662.c: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@235008
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rguenth [Fri, 15 Apr 2016 07:28:44 +0000 (07:28 +0000)]
2016-04-15 Richard Biener <rguenther@suse.de>
Alan Modra <amodra@gmail.com>
PR tree-optimization/70130
* tree-vect-data-refs.c (vect_supportable_dr_alignment): Detect
when alignment stays not the same and no not use the realign
scheme then.
* gcc.dg/vect/O3-pr70130.c: New testcase.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@235006
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jason [Fri, 15 Apr 2016 04:02:49 +0000 (04:02 +0000)]
PR c++/70494
* decl.c (cxx_maybe_build_cleanup): Handle non-decls.
* typeck2.c (split_nonconstant_init_1): Use it.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@235003
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jason [Fri, 15 Apr 2016 02:23:05 +0000 (02:23 +0000)]
PR c++/70528
* class.c (type_has_constexpr_default_constructor): Return true
for an implicitly declared constructor.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@235002
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gccadmin [Fri, 15 Apr 2016 00:16:16 +0000 (00:16 +0000)]
Daily bump.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@234999
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meissner [Thu, 14 Apr 2016 23:21:30 +0000 (23:21 +0000)]
[gcc]
2016-04-14 Michael Meissner <meissner@linux.vnet.ibm.com>
PR target/70669
* config/rs6000/rs6000.c (rs6000_init_hard_regno_mode_ok): Add
direct move handlers for KFmode. Change TFmode handlers test from
FLOAT128_IEEE_P to FLOAT128_VECTOR_P.
[gcc/testsuite]
2016-04-14 Michael Meissner <meissner@linux.vnet.ibm.com>
PR target/70669
* gcc.target/powerpc/pr70669.c: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@234995
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cesar [Thu, 14 Apr 2016 21:24:03 +0000 (21:24 +0000)]
libgomp/
* testsuite/libgomp.oacc-fortran/non-scalar-data.f90: Don't
pass parameter variables to subroutines.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@234992
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jason [Thu, 14 Apr 2016 20:14:49 +0000 (20:14 +0000)]
PR c++/70622
* parser.c (cp_parser_init_declarator): Add auto_result parm.
(cp_parser_simple_declaration): Pass it.
(strip_declarator_types): New.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@234991
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jason [Thu, 14 Apr 2016 20:14:44 +0000 (20:14 +0000)]
PR c++/70543
* pt.c (value_dependent_expression_p) [VAR_DECL]: A type-dependent
initializer also makes the variable value-dependent.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@234990
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jason [Thu, 14 Apr 2016 20:14:38 +0000 (20:14 +0000)]
PR c++/70648
* constexpr.c (cxx_eval_store_expression): Also copy
CONSTRUCTOR_NO_IMPLICIT_ZERO.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@234989
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meissner [Thu, 14 Apr 2016 20:05:58 +0000 (20:05 +0000)]
2016-04-14 Michael Meissner <meissner@linux.vnet.ibm.com>
PR target/70640
* gcc.target/powerpc/pr70640.c: Fix test so it correctly works on
a power7 system that does not have an assembler that supports
power8.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@234988
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jakub [Thu, 14 Apr 2016 19:21:31 +0000 (19:21 +0000)]
PR c++/70594
* ipa-utils.h (polymorphic_ctor_dtor_p): New prototype.
* ipa-polymorphic-call.c (polymorphic_ctor_dtor_p): New function.
(inlined_polymorphic_ctor_dtor_block_p): Use it.
* tree-ssa-live.c (remove_unused_scope_block_p): When
in_ctor_dtor_block, avoid discarding not just BLOCKs with
BLOCK_ABSTRACT_ORIGIN being FUNCTION_DECL, but even when
block_ultimate_origin is FUNCTION_DECL.
(remove_unused_locals): If current_function_decl is
polymorphic_ctor_dtor_p, pass initial true to
remove_unused_scope_block_p' is_ctor_dtor_block.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@234987
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msebor [Thu, 14 Apr 2016 17:35:23 +0000 (17:35 +0000)]
PR c++/70652 - [6 Regression] r234966 causes bootstrap to fail
Revert patch for c++/69517, c++/70019, and c++/70588.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@234981
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mpolacek [Thu, 14 Apr 2016 16:51:16 +0000 (16:51 +0000)]
PR c++/70029
* tree.c (verify_type): Disable the canonical type of main variant
check.
* g++.dg/torture/pr70029.C: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@234979
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jason [Thu, 14 Apr 2016 16:23:06 +0000 (16:23 +0000)]
Revert empty class parameter passing ABI changes.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@234977
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msebor [Thu, 14 Apr 2016 15:25:40 +0000 (15:25 +0000)]
g++.dg/cpp1y/vla11.C: Avoid using attribute aligned to increase type
size to prevent failures on targets with very low maximum alignment.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@234976
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cesar [Thu, 14 Apr 2016 13:44:17 +0000 (13:44 +0000)]
PR middle-end/70643
gcc/
* omp-low.c (lower_oacc_reductions): Check for TREE_CONSTANT
when building a mem ref for the incoming reduction variable.
libgomp/
* testsuite/libgomp.oacc-fortran/pr70643.f90: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@234973
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rguenth [Thu, 14 Apr 2016 13:21:40 +0000 (13:21 +0000)]
2016-04-14 Richard Biener <rguenther@suse.de>
PR tree-optimization/70614
* tree-scalar-evolution.c (analyze_evolution_in_loop): Terminate
loop if the evolution dropped to chrec_dont_know.
(interpret_condition_phi): Likewise.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@234972
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rguenth [Thu, 14 Apr 2016 07:30:53 +0000 (07:30 +0000)]
2016-04-14 Richard Biener <rguenther@suse.de>
PR tree-optimization/70623
* tree-ssa-pre.c (changed_blocks): Make global ...
(compute_antic): ... local here. Move and fix worklist
handling here. Do not clear EDGE_DFS_BACK or call mark_dfs_back_edges.
(compute_antic_aux): Add dumping for MAX assumed succs. Remove
worklist handling, dump when ANTIC_IN changed.
(compute_partial_antic_aux): Remove worklist handling.
(init_pre): Do not compute post dominators. Add a comment about
the CFG order chosen.
(fini_pre): Do not free post dominators.
* gcc.dg/torture/pr70623.c: New testcase.
* gcc.dg/torture/pr70623-2.c: Likewise.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@234970
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gccadmin [Thu, 14 Apr 2016 00:16:14 +0000 (00:16 +0000)]
Daily bump.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@234969
138bc75d-0d04-0410-961f-
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msebor [Wed, 13 Apr 2016 23:26:41 +0000 (23:26 +0000)]
PR c++/69517 - [5/6 regression] SEGV on a VLA with excess initializer elements
PR c++/70019 - VLA size overflow not detected
PR c++/70588 - SIGBUS on a VLA larger than SIZE_MAX / 2
gcc/testsuite/ChangeLog:
2016-04-13 Martin Sebor <msebor@redhat.com>
PR c++/69517
PR c++/70019
PR c++/70588
* c-c++-common/ubsan/vla-1.c (main): Catch exceptions.
* g++.dg/cpp1y/vla11.C: New test.
* g++.dg/cpp1y/vla12.C: New test.
* g++.dg/cpp1y/vla13.C: New test.
* g++.dg/cpp1y/vla14.C: New test.
* g++.dg/cpp1y/vla3.C: Restore deleted test.
* gcc/testsuite/g++.dg/init/array24.C: Fully brace VLA initializer.
* g++.dg/ubsan/vla-1.C: Disable exceptions.
gcc/cp/ChangeLog:
2016-04-13 Martin Sebor <msebor@redhat.com>
PR c++/69517
PR c++/70019
PR c++/70588
* cp-tree.h (throw_bad_array_length, build_vla_check): Declare new
functions.
* decl.c (check_initializer, cp_finish_decl): Call them.
(reshape_init_r): Reject incompletely braced intializer-lists
for VLAs.
* init.c (throw_bad_array_length, build_vla_check)
(build_vla_size_check, build_vla_init_check): Define new functions.
* typeck2.c (split_nonconstant_init_1): Use variably_modified_type_p()
to detect a VLA.
(store_init_value): Same.
gcc/doc/ChangeLog:
2016-04-13 Martin Sebor <msebor@redhat.com>
PR c++/69517
PR c++/70019
PR c++/70588
* extend.texi (Variable Length): Document C++ specifics.
libstdc++-v3/ChangeLog:
2016-04-13 Martin Sebor <msebor@redhat.com>
PR c++/69517
* testsuite/25_algorithms/rotate/moveable2.cc: Make sure VLA
upper bound is positive.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@234966
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msebor [Wed, 13 Apr 2016 22:05:30 +0000 (22:05 +0000)]
check_GNU_style.sh: Avoid false posivies in trailing operator checks.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@234965
138bc75d-0d04-0410-961f-
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redi [Wed, 13 Apr 2016 22:00:50 +0000 (22:00 +0000)]
Adjust for new empty class parameter passing ABI.
* include/bits/c++config (_GLIBCXX_BEGIN_NAMESPACE_EMPTY_TYPES,
_GLIBCXX_END_NAMESPACE_EMPTY_TYPES, _GLIBCXX_ABI_TAG_EMPTY): Define.
* include/bits/hashtable.h (_Hashtable::_M_emplace): Change signatures
of functions taking empty structs by value. Add a template parameter
to overloads without hints. Rename overloads with hints to
_M_emplace_hint.
(_Hashtable::_M_erase(true_type, const_iterator),
_Hashtable::_M_erase(false_type, const_iterator)): Change signatures
by reordering parameters.
* include/bits/hashtable_policy.h (_Insert::insert): Adjust to call
_M_emplace_hint instead of _M_emplace.
* include/bits/shared_ptr.h (shared_ptr(_Tp1*, _Deleter, _Alloc),
shared_ptr(nullptr_t, _Deleter, _Alloc)): Use _GLIBCXX_ABI_TAG_EMPTY.
* include/bits/shared_ptr_base.h (_Sp_counted_deleter, __shared_count,
__shared_ptr): Likewise.
* include/bits/stl_algo.h (replace_if): Likewise.
* include/bits/stl_pair.h (piecewise_construct_t,
piecewise_construct): Use _GLIBCXX_BEGIN_NAMESPACE_EMPTY_TYPES.
* include/bits/uses_allocator.h (allocator_arg_t, allocator_arg,
__uses_alloc0): Likewise.
* include/ext/pb_ds/assoc_container.hpp (basic_hash_table): Likewise.
* testsuite/20_util/scoped_allocator/69293_neg.cc: Adjust dg-error.
* testsuite/20_util/shared_ptr/cons/43820_neg.cc: Likewise.
* testsuite/20_util/shared_ptr/cons/void_neg.cc: Likewise.
* testsuite/20_util/uses_allocator/69293_neg.cc: Likewise.
* testsuite/20_util/uses_allocator/cons_neg.cc: Likewise.
* testsuite/ext/profile/mutex_extensions_neg.cc: Likewise.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@234964
138bc75d-0d04-0410-961f-
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jakub [Wed, 13 Apr 2016 20:43:10 +0000 (20:43 +0000)]
PR c++/70641
* ipa-pure-const.c (pass_nothrow::execute): Call maybe_clean_eh_stmt
on all recursive call stmts. Return TODO_cleanup_cfg if any dead
eh edges have been purged.
* g++.dg/opt/pr70641.C: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@234962
138bc75d-0d04-0410-961f-
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jakub [Wed, 13 Apr 2016 20:35:59 +0000 (20:35 +0000)]
PR c++/70594
* tree-sra.c (create_access_replacement,
get_replaced_param_substitute): Set DECL_NAMELESS on repl if it
gets fancy name.
* tree-pretty-print.c (dump_fancy_name): New function.
(dump_decl_name, dump_generic_node): Use it.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@234961
138bc75d-0d04-0410-961f-
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jason [Wed, 13 Apr 2016 20:11:29 +0000 (20:11 +0000)]
Warn about empty parameter ABI with -Wabi=9.
* call.c (empty_class_msg, mark_for_abi_warning)
(warn_empty_class_abi): New.
(build_call_a): Use them.
* decl.c (store_parm_decls): Use mark_for_abi_warning.
* error.c (pp_format_to_string): New.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@234960
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jason [Wed, 13 Apr 2016 20:11:20 +0000 (20:11 +0000)]
Pass empty class parameters like C.
* call.c (pass_as_empty_struct, empty_class_arg): New.
(type_passed_as, build_x_va_arg): Use pass_as_empty_struct.
(build_call_a): Use empty_class_arg.
* cp-tree.h (CPTI_EMPTY_STRUCT, empty_struct_type): New.
* decl.c (cxx_init_decl_processing): Create empty_struct_type.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@234959
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ian [Wed, 13 Apr 2016 19:11:16 +0000 (19:11 +0000)]
libgo: update to Go 1.6.1 release
Reviewed-on: https://go-review.googlesource.com/22007
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@234958
138bc75d-0d04-0410-961f-
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cesar [Wed, 13 Apr 2016 18:54:41 +0000 (18:54 +0000)]
libgomp/
PR testsuite/68242
* testsuite/libgomp.oacc-c-c++-common/reduction-1.c: Adjust test.
* testsuite/libgomp.oacc-c-c++-common/reduction-2.c: Likewise.
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jason [Wed, 13 Apr 2016 18:32:11 +0000 (18:32 +0000)]
PR c++/70627
* decl.c (start_enum): Don't change an existing ENUM_UNDERLYING_TYPE.
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ro [Wed, 13 Apr 2016 18:13:31 +0000 (18:13 +0000)]
Fix gcc.dg/ifcvt-4.c on 64-bit SPARC (PR rtl-optimization/68749)
PR rtl-optimization/68749
* gcc.dg/ifcvt-4.c: Use "word_mode" rather than "int" to limit the
effects of argument promotions.
Remove default args to dg-skip-if.
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segher [Wed, 13 Apr 2016 18:02:08 +0000 (18:02 +0000)]
Make distclean clean up more (PR70173)
Currently, distclean does not remove the libcc1, gnattools, and gotools
directories, and not the stage_final file either. Fix that.
PR bootstrap/70173
* Makefile.tpl (local-distclean): Delete the libcc1, gnattools,
and gotools directories. Delete the stage_final file.
* Makefile.in: Regenerate.
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paolo [Wed, 13 Apr 2016 17:11:03 +0000 (17:11 +0000)]
/cp
2016-04-13 Paolo Carlini <paolo.carlini@oracle.com>
PR c++/70635
* pt.c (resolve_typename_type): Fix typos in infinite recursion
avoidance mechanism.
/testsuite
2016-04-13 Paolo Carlini <paolo.carlini@oracle.com>
PR c++/70635
* g++.dg/parse/pr70635.C: New.
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mpolacek [Wed, 13 Apr 2016 16:28:46 +0000 (16:28 +0000)]
PR c++/70639
* c-indentation.c (should_warn_for_misleading_indentation): Bail out
for switch statements, too.
* c-c++-common/Wmisleading-indentation-4.c: New test.
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mpolacek [Wed, 13 Apr 2016 16:00:52 +0000 (16:00 +0000)]
PR c/70436
* c-parser.c (c_parser_statement_after_labels): Add IF_P argument and
adjust callers.
(c_parser_statement): Likewise.
(c_parser_c99_block_statement): Likewise.
(c_parser_while_statement): Likewise.
(c_parser_for_statement): Likewise.
(c_parser_if_body): Don't set IF_P here.
(c_parser_if_statement): Add IF_P argument. Set IF_P here. Warn
about dangling else here.
* c-tree.h (c_finish_if_stmt): Adjust declaration.
* c-typeck.c (c_finish_if_stmt): Remove NESTED_IF parameter. Don't
warn about dangling else here.
* testsuite/gcc.dg/Wparentheses-12.c: New test.
* testsuite/gcc.dg/Wparentheses-13.c: New test.
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dominiq [Wed, 13 Apr 2016 15:04:57 +0000 (15:04 +0000)]
2016-04-13 Dominique d'Humieres <dominiq@lps.ens.fr>
PR fortran/67039
* intrinsic.texi: Correct the documentation of pseudorandom
number intrinsics.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@234946
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jason [Wed, 13 Apr 2016 15:02:23 +0000 (15:02 +0000)]
PR c++/70634
* pt.c (instantiation_dependent_uneval_expression_p): Split out
from instantiation_dependent_expression_p.
(value_dependent_expression_p): Use it for unevaluated operands.
(instantiation_dependent_r): Don't check value-dependence.
(instantiation_dependent_expression_p): Check
value-dependence of the expression as a whole.
* cp-tree.h: Declare instantiation_dependent_uneval_expression_p.
* semantics.c (finish_decltype_type): Use it.
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jason [Wed, 13 Apr 2016 15:02:17 +0000 (15:02 +0000)]
* constexpr.c (potential_nondependent_constant_expression): New.
(potential_nondependent_static_init_expression): New.
(maybe_constant_value_1, fold_non_dependent_expr)
(maybe_constant_init): Use them.
* pt.c (instantiate_non_dependent_expr_sfinae)
(instantiate_non_dependent_or_null, convert_nontype_argument): Use
them.
* cp-tree.h: Declare them.
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jakub [Wed, 13 Apr 2016 14:45:46 +0000 (14:45 +0000)]
PR c++/70594
* decl.c (pop_labels_1): Removed.
(note_label, sort_labels): New functions.
(pop_labels): During named_labels traversal, just push the slot
pointers into a vector, then qsort it by DECL_UID and only then
call pop_label and chain it into BLOCK_VARS.
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