[Bug c/66826] New: Unused dlsym return results in segfault
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66826
Bug ID: 66826
Summary: Unused dlsym return results in segfault
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: quae at daurnimator dot com
Target Milestone: ---
Having a weird issue here: if I dlsym() something in a constructor, but don't
use the result; the shared library segfaults at load.
bug-main.c:
#define _GNU_SOURCE
#include dlfcn.h
int main() {
void *foo = dlopen(./shared.so, RTLD_NOW);
void (*some_exported_function)() = dlsym(foo,
some_exported_function);
some_exported_function();
return 0;
}
bug-shared.c:
#define _GNU_SOURCE
#include dlfcn.h
#include stdio.h
static int (*pointer) ();
static int stub () { return 0; }
__attribute__((constructor)) static void some_init() {
if ((pointer = dlsym(RTLD_DEFAULT, anything)) == NULL) {
pointer = stub;
}
}
void some_exported_function() {
printf(in some_exported_function\n);
printf(%p\n, pointer);
}
Compile with:
gcc -shared -O2 -fPIC bug-shared.c -ldl -o shared.so
gcc -O2 -fPIC bug-main.c -ldl
Now comment out the `printf` of the pointer in bug-shared.c; and it'll get a
segfault.
Backtrace:
#0 0x77de4b77 in _dl_lookup_symbol_x () from
/lib64/ld-linux-x86-64.so.2
#1 0x77951b91 in do_sym () from /usr/lib/libc.so.6
#2 0x77bd80f4 in ?? () from /usr/lib/libdl.so.2
#3 0x77de9f94 in _dl_catch_error () from /lib64/ld-linux-x86-64.so.2
#4 0x77bd85e1 in ?? () from /usr/lib/libdl.so.2
#5 0x77bd8148 in dlsym () from /usr/lib/libdl.so.2
#6 0x77dea0ea in call_init.part () from /lib64/ld-linux-x86-64.so.2
#7 0x77dea1fb in _dl_init () from /lib64/ld-linux-x86-64.so.2
#8 0x77dee627 in dl_open_worker () from /lib64/ld-linux-x86-64.so.2
#9 0x77de9f94 in _dl_catch_error () from /lib64/ld-linux-x86-64.so.2
#10 0x77dede01 in _dl_open () from /lib64/ld-linux-x86-64.so.2
#11 0x77bd7fc9 in ?? () from /usr/lib/libdl.so.2
#12 0x77de9f94 in _dl_catch_error () from /lib64/ld-linux-x86-64.so.2
#13 0x77bd85e1 in ?? () from /usr/lib/libdl.so.2
#14 0x77bd8061 in dlopen () from /usr/lib/libdl.so.2
#15 0x00400622 in main ()
$ gcc -dumpversion
5.1.0
Works fine with -O0
Works fine with clang
[Bug tree-optimization/66522] handle casts in nr of iterations in try_transform_to_exit_first_loop_alt
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66522 --- Comment #5 from vries at gcc dot gnu.org --- https://gcc.gnu.org/ml/gcc-cvs/2015-07/msg00440.html: Author: vries Date: Fri Jul 10 08:25:18 2015 New Revision: 225655 URL: https://gcc.gnu.org/viewcvs?rev=225655root=gccview=rev Log: Insert new bound in try_transform_to_exit_first_loop_alt 2015-07-10 Tom de Vries t...@codesourcery.com * tree-parloops.c (try_transform_to_exit_first_loop_alt): If not found, insert nit + 1 bound. * testsuite/libgomp.fortran/parloops-exit-first-loop-alt-2.f95: New test. * testsuite/libgomp.fortran/parloops-exit-first-loop-alt.f95: New test. * gfortran.dg/parloops-exit-first-loop-alt-2.f95: New test. * gfortran.dg/parloops-exit-first-loop-alt.f95: New test. Added: trunk/gcc/testsuite/gfortran.dg/parloops-exit-first-loop-alt-2.f95 trunk/gcc/testsuite/gfortran.dg/parloops-exit-first-loop-alt.f95 trunk/libgomp/testsuite/libgomp.fortran/parloops-exit-first-loop-alt-2.f95 trunk/libgomp/testsuite/libgomp.fortran/parloops-exit-first-loop-alt.f95 Modified: trunk/gcc/ChangeLog trunk/gcc/testsuite/ChangeLog trunk/gcc/tree-parloops.c trunk/libgomp/ChangeLog
[Bug tree-optimization/66522] handle casts in nr of iterations in try_transform_to_exit_first_loop_alt
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66522 vries at gcc dot gnu.org changed: What|Removed |Added Status|UNCONFIRMED |RESOLVED Resolution|--- |FIXED Assignee|unassigned at gcc dot gnu.org |vries at gcc dot gnu.org --- Comment #6 from vries at gcc dot gnu.org --- patch with test-case committed, resolving marked-fixed.
[Bug target/66703] [4.9/5/6] gcc.target/i386/readeflags-1.c aborts on -march=i586 or on -miamcu
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66703
--- Comment #4 from Uroš Bizjak ubizjak at gmail dot com ---
This patch makes testcase more robust:
--cut here--
Index: readeflags-1.c
===
--- readeflags-1.c (revision 225648)
+++ readeflags-1.c (working copy)
@@ -11,10 +11,11 @@
#define EFLAGS_TYPE unsigned int
#endif
-static EFLAGS_TYPE
+__attribute__((noinline, noclone))
+EFLAGS_TYPE
readeflags_test (unsigned int a, unsigned int b)
{
- unsigned x = (a == b);
+ volatile char x = (a == b);
return __readeflags ();
}
--cut here--
[Bug other/66827] New: [6 Regression] left shifts of negative value warnings due to C++14 switch
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66827 Bug ID: 66827 Summary: [6 Regression] left shifts of negative value warnings due to C++14 switch Product: gcc Version: 6.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: other Assignee: unassigned at gcc dot gnu.org Reporter: trippels at gcc dot gnu.org Target Milestone: --- For C++98 -fsanitize=undefined didn't warn in case of left shifts of negative values. Now that trunk switched to C++14 a number of new warnings popped up: gcc/config/rs6000/rs6000.c:5398:36: runtime error: left shift of negative value -12301 gcc/config/rs6000/rs6000.md:3126:17: runtime error: left shift of negative value -1 gcc/dce.c:287:16: runtime error: ../../gcc/gcc/haifa-sched.c:1442:26:left shift of negative value -1 gcc/expmed.c:3002:15: runtime error: left shift of negative value -1 gcc/haifa-sched.c:1164:24: runtime error: left shift of negative value -1 gcc/haifa-sched.c:1442:26: runtime error: left shift of negative value -1 gcc/hwint.h:250:19: runtime error: left shift of negative value -113824 gcc/real.c:2861:25: runtime error: left shift of negative value -63 gcc/sched-deps.c:112:20: runtime error: left shift of negative value -1 gcc/sreal.c:231:20: runtime error: left shift of negative value -1092263868 libcpp/files.c:683:30: runtime error: left shift of negative value -1 libiberty/regex.c:6970:11: runtime error: left shift of negative value -1 libiberty/regex.c:7165:4: runtime error: left shift of negative value -1
[Bug tree-optimization/66828] New: [5/6 Regression] gcc/tree-ssa-math-opts.c:2182:38: runtime error: left shift of 72057594037927936 by 8 places cannot be represented in type 'long int'
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66828 Bug ID: 66828 Summary: [5/6 Regression] gcc/tree-ssa-math-opts.c:2182:38: runtime error: left shift of 72057594037927936 by 8 places cannot be represented in type 'long int' Product: gcc Version: 6.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: tree-optimization Assignee: unassigned at gcc dot gnu.org Reporter: trippels at gcc dot gnu.org CC: thomas.preudhomme at arm dot com Target Milestone: --- since r219525 bootstrap-ubsan shows: gcc/tree-ssa-math-opts.c:2182:38: runtime error: left shift of 72057594037927936 by 8 places cannot be represented in type 'long int'
[Bug target/66822] Turn -mtune=iamcu for size
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66822 --- Comment #7 from Uroš Bizjak ubizjak at gmail dot com --- (In reply to Uroš Bizjak from comment #3) Please hold a bit with this change, I have a patch that improves generation of zero_extend substantially. Eh, it won't have such drastic effect on code size, so if size is priority, X86_TUNE_ZERO_EXTEND_WITH_AND should be disabled.
[Bug tree-optimization/66823] -ftree-loop-if-convert-stores miscompiles gfortran.dg/elemental_optional_args_3.f90
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66823 --- Comment #4 from Richard Biener rguenth at gcc dot gnu.org --- Author: rguenth Date: Fri Jul 10 07:53:06 2015 New Revision: 225652 URL: https://gcc.gnu.org/viewcvs?rev=225652root=gccview=rev Log: 2015-07-10 Richard Biener rguent...@suse.de PR tree-optimization/66823 * tree-if-conv.c (memrefs_read_or_written_unconditionally): Fix inverted predicate. * gcc.dg/vect/pr61194.c: Remove -ftree-loop-if-convert-stores which should not be necessary. XFAIL. Modified: trunk/gcc/ChangeLog trunk/gcc/testsuite/ChangeLog trunk/gcc/testsuite/gcc.dg/vect/pr61194.c trunk/gcc/tree-if-conv.c
[Bug c++/66218] [c++-concepts] inconsistent deduction for ‘auto’ with a partial-concept-id in a deduction constraint
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66218 --- Comment #1 from Jason Merrill jason at gcc dot gnu.org --- Author: jason Date: Fri Jul 10 07:25:55 2015 New Revision: 225650 URL: https://gcc.gnu.org/viewcvs?rev=225650root=gccview=rev Log: PR c++/66218 * gcc/cp/pt.c (do_auto_deduction): Don't set TREE_TYPE (auto_node) in requirement context. Added: branches/c++-concepts/gcc/testsuite/g++.dg/concepts/req12.C Modified: branches/c++-concepts/ChangeLog.concepts branches/c++-concepts/gcc/cp/pt.c
[Bug c++/66092] [c++-concepts] Concept can't check variadic template arguments
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66092 --- Comment #4 from Jason Merrill jason at gcc dot gnu.org --- Author: jason Date: Fri Jul 10 07:25:49 2015 New Revision: 225649 URL: https://gcc.gnu.org/viewcvs?rev=225649root=gccview=rev Log: PR c++/66092 * gcc/cp/cp-tree.h (concept_template_p): New. * gcc/cp/pt.c (coerce_template_parms): Concepts are also affected by DR 1430. * gcc/cp/constraint.cc (lift_template_id): Use location_of. * gcc/cp/parser.c (cp_parser_template_id): SET_EXPR_LOCATION. Added: branches/c++-concepts/gcc/testsuite/g++.dg/concepts/dr1430.C Modified: branches/c++-concepts/ChangeLog.concepts branches/c++-concepts/gcc/cp/constraint.cc branches/c++-concepts/gcc/cp/cp-tree.h branches/c++-concepts/gcc/cp/parser.c branches/c++-concepts/gcc/cp/pt.c branches/c++-concepts/gcc/testsuite/g++.dg/concepts/var-concept3.C
[Bug c++/66758] [concepts] ICE compiler deeply confused by simple-seeming concept definition
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66758 --- Comment #2 from Jason Merrill jason at gcc dot gnu.org --- Author: jason Date: Fri Jul 10 07:26:01 2015 New Revision: 225651 URL: https://gcc.gnu.org/viewcvs?rev=225651root=gccview=rev Log: PR c++/66758 * gcc/cp/parser.c (cp_parser_requirement_parameter_list):Use grokparms. * gcc/cp/constraint.cc (fixup_constraint_vars): Remove. (tsubst_constraint_variables): Don't call it. (declare_constraint_vars): Constraint vars aren't a TREE_LIST anymore. (finish_requires_expr): Likewise. * gcc/cp/cxx-pretty-print.c (pp_cxx_parameter_declaration_clause): Likewise. * gcc/cp/decl.c (grokparms): No longer static. * gcc/cp/cp-tree.h: Declare it. Added: branches/c++-concepts/gcc/testsuite/g++.dg/concepts/req13.C Modified: branches/c++-concepts/ChangeLog.concepts branches/c++-concepts/gcc/cp/constraint.cc branches/c++-concepts/gcc/cp/cp-tree.h branches/c++-concepts/gcc/cp/cxx-pretty-print.c branches/c++-concepts/gcc/cp/decl.c branches/c++-concepts/gcc/cp/parser.c
[Bug c++/65592] internal compiler error: Segmentation fault when using non-existent enum class enumerator
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65592 --- Comment #3 from Paolo Carlini paolo.carlini at oracle dot com --- This issue is already fixed in mainline. I'm adding a testcase and closing it.
[Bug c++/65592] internal compiler error: Segmentation fault when using non-existent enum class enumerator
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65592 --- Comment #4 from paolo at gcc dot gnu.org paolo at gcc dot gnu.org --- Author: paolo Date: Fri Jul 10 09:33:34 2015 New Revision: 225658 URL: https://gcc.gnu.org/viewcvs?rev=225658root=gccview=rev Log: 2015-07-10 Paolo Carlini paolo.carl...@oracle.com PR c++/65592 * g++.dg/cpp0x/scoped_enum6.C: New. Added: trunk/gcc/testsuite/g++.dg/cpp0x/scoped_enum6.C Modified: trunk/gcc/testsuite/ChangeLog
[Bug c++/65592] internal compiler error: Segmentation fault when using non-existent enum class enumerator
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65592 Paolo Carlini paolo.carlini at oracle dot com changed: What|Removed |Added Status|NEW |RESOLVED CC||paolo.carlini at oracle dot com Resolution|--- |FIXED Target Milestone|--- |6.0 --- Comment #5 from Paolo Carlini paolo.carlini at oracle dot com --- Done.
[Bug fortran/66775] Allocatable function result type(t) produces segfault when uninitialized
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66775 vehre at gcc dot gnu.org changed: What|Removed |Added Status|UNCONFIRMED |RESOLVED Resolution|--- |INVALID --- Comment #3 from vehre at gcc dot gnu.org --- By sections 12.5.3 and 12.6.2.2 of F2008 the function has to return an allocated object, this means this pr is invalid. Nothing broken, nothing to fix.
[Bug target/66780] [4.9 Regression] Compiling with -fstack-protector-strong causes binary to segfault
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66780 --- Comment #6 from Kazumoto Kojima kkojima at gcc dot gnu.org --- Author: kkojima Date: Fri Jul 10 09:50:18 2015 New Revision: 225660 URL: https://gcc.gnu.org/viewcvs?rev=225660root=gccview=rev Log: PR target/66780 * config/sh/sh.md (symGOT_load): Revert a part of 2015-03-03 change for target/65249. Modified: branches/gcc-5-branch/gcc/ChangeLog branches/gcc-5-branch/gcc/config/sh/sh.md
[Bug target/66563] [4.9/5 Regression] ICE (segmentation fault) on sh4-linux-gnu
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66563 --- Comment #53 from Kazumoto Kojima kkojima at gcc dot gnu.org --- (In reply to Kazumoto Kojima from comment #52) We are lucky:-) The test for backport of PR66780 patch for gcc-5 was done and we get a chance to commit it: https://gcc.gnu.org/ml/gcc-patches/2015-07/msg00819.html All known patches are applied to 5-branch and 5.2-release.
[Bug tree-optimization/66794] [4.9/5 Regression] ICE at -O2 and -O3 on x86_64-linux-gnu
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66794 --- Comment #4 from Richard Biener rguenth at gcc dot gnu.org --- Author: rguenth Date: Fri Jul 10 12:33:28 2015 New Revision: 225671 URL: https://gcc.gnu.org/viewcvs?rev=225671root=gccview=rev Log: 2015-07-10 Richard Biener rguent...@suse.de Backport from mainline 2015-07-10 Richard Biener rguent...@suse.de PR tree-optimization/66823 * tree-if-conv.c (memrefs_read_or_written_unconditionally): Fix inverted predicate. * gcc.dg/vect/pr61194.c: Remove -ftree-loop-if-convert-stores which should not be necessary. XFAIL. 2015-07-08 Richard Biener rguent...@suse.de PR middle-end/43341 * toplev.c (compile_file): Reset maximum_field_alignment after parsing. 2015-07-08 Richard Biener rguent...@suse.de PR tree-optimization/66794 * gimple-ssa-isolate-paths.c (gimple_ssa_isolate_erroneous_paths): Free post-dominators. * gcc.dg/torture/pr66794.c: New testcase. Added: branches/gcc-5-branch/gcc/testsuite/gcc.dg/torture/pr66794.c Modified: branches/gcc-5-branch/gcc/ChangeLog branches/gcc-5-branch/gcc/gimple-ssa-isolate-paths.c branches/gcc-5-branch/gcc/testsuite/ChangeLog branches/gcc-5-branch/gcc/testsuite/gcc.dg/vect/pr61194.c branches/gcc-5-branch/gcc/toplev.c branches/gcc-5-branch/gcc/tree-if-conv.c
[Bug gcov-profile/43341] pragma pack changes padding in struct gcov_info on 64-bit archs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=43341 --- Comment #12 from Richard Biener rguenth at gcc dot gnu.org --- Author: rguenth Date: Fri Jul 10 12:33:28 2015 New Revision: 225671 URL: https://gcc.gnu.org/viewcvs?rev=225671root=gccview=rev Log: 2015-07-10 Richard Biener rguent...@suse.de Backport from mainline 2015-07-10 Richard Biener rguent...@suse.de PR tree-optimization/66823 * tree-if-conv.c (memrefs_read_or_written_unconditionally): Fix inverted predicate. * gcc.dg/vect/pr61194.c: Remove -ftree-loop-if-convert-stores which should not be necessary. XFAIL. 2015-07-08 Richard Biener rguent...@suse.de PR middle-end/43341 * toplev.c (compile_file): Reset maximum_field_alignment after parsing. 2015-07-08 Richard Biener rguent...@suse.de PR tree-optimization/66794 * gimple-ssa-isolate-paths.c (gimple_ssa_isolate_erroneous_paths): Free post-dominators. * gcc.dg/torture/pr66794.c: New testcase. Added: branches/gcc-5-branch/gcc/testsuite/gcc.dg/torture/pr66794.c Modified: branches/gcc-5-branch/gcc/ChangeLog branches/gcc-5-branch/gcc/gimple-ssa-isolate-paths.c branches/gcc-5-branch/gcc/testsuite/ChangeLog branches/gcc-5-branch/gcc/testsuite/gcc.dg/vect/pr61194.c branches/gcc-5-branch/gcc/toplev.c branches/gcc-5-branch/gcc/tree-if-conv.c
[Bug target/66703] [4.9/5/6] gcc.target/i386/readeflags-1.c aborts on -march=i586 or on -miamcu
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66703
--- Comment #5 from H.J. Lu hjl.tools at gmail dot com ---
(In reply to Uroš Bizjak from comment #4)
This patch makes testcase more robust:
--cut here--
Index: readeflags-1.c
===
--- readeflags-1.c (revision 225648)
+++ readeflags-1.c (working copy)
@@ -11,10 +11,11 @@
#define EFLAGS_TYPE unsigned int
#endif
-static EFLAGS_TYPE
+__attribute__((noinline, noclone))
+EFLAGS_TYPE
readeflags_test (unsigned int a, unsigned int b)
{
- unsigned x = (a == b);
+ volatile char x = (a == b);
return __readeflags ();
}
--cut here--
It looks fine. Thanks.
[Bug c++/65945] C++ alignment of nullptr_t is 1 and might cause unaligned stores to the frame
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65945 --- Comment #17 from npl at chello dot at --- Hi, so if I understand it right, the access fault itself isnt fixed, but if I use ABI Version = 9 it wont occur with this code? Should I open a separate Bug for the unaligned access issue?
[Bug tree-optimization/66828] [5/6 Regression] gcc/tree-ssa-math-opts.c:2182:38: runtime error: left shift of 72057594037927936 by 8 places cannot be represented in type 'long int'
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66828 Richard Biener rguenth at gcc dot gnu.org changed: What|Removed |Added Target Milestone|--- |5.2
[Bug middle-end/66313] Unsafe factorization of a*b+a*c
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66313 --- Comment #7 from Richard Biener rguenth at gcc dot gnu.org --- gcc.dg/tree-ssa/pr23294.c should be still optimized, no? there is not a single case with a possibly overflowing addition in there.
[Bug middle-end/66313] Unsafe factorization of a*b+a*c
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66313 --- Comment #9 from Marek Polacek mpolacek at gcc dot gnu.org --- With the conversion to unsigned we're also no longer able to optimize tree-ssa/tailrecursion-6.c.
[Bug target/66563] [4.9/5 Regression] ICE (segmentation fault) on sh4-linux-gnu
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66563 --- Comment #54 from John Paul Adrian Glaubitz glaubitz at physik dot fu-berlin.de --- (In reply to Kazumoto Kojima from comment #53) (In reply to Kazumoto Kojima from comment #52) We are lucky:-) The test for backport of PR66780 patch for gcc-5 was done and we get a chance to commit it: https://gcc.gnu.org/ml/gcc-patches/2015-07/msg00819.html All known patches are applied to 5-branch and 5.2-release. Woohoo, thanks a fortune!
[Bug middle-end/66313] Unsafe factorization of a*b+a*c
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66313
--- Comment #8 from Marek Polacek mpolacek at gcc dot gnu.org ---
Right now .optimized looks like this:
f6 (int a, int b)
{
int _2;
int _4;
int _5;
bb 2:
_2 = a_1(D) * 3;
_4 = _2 - b_3(D);
_5 = _4 * 2;
return _5;
}
whereas if we compute the expression in unsigned, we generate this:
f6 (int a, int b)
{
int _2;
unsigned int _3;
unsigned int b.5_5;
unsigned int _6;
unsigned int _7;
int _8;
bb 2:
_2 = a_1(D) * -3;
_3 = (unsigned int) _2;
b.5_5 = (unsigned int) b_4(D);
_6 = _3 + b.5_5;
_7 = _6 * 4294967294;
_8 = (int) _7;
return _8;
}
But I see no other way ;(.
[Bug middle-end/66313] Unsafe factorization of a*b+a*c
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66313 --- Comment #5 from Marek Polacek mpolacek at gcc dot gnu.org --- I think I'll restrict the computation in unsigned only for TYPE_OVERFLOW_SANITIZED, otherwise we fail to optimize important stuff :/ (e.g. tree-ssa/pr23294.c).
[Bug middle-end/66820] [5/6 Regression] internal compiler error: in get_expr_operands, at tree-ssa-operands.c:910
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66820 --- Comment #8 from Jakub Jelinek jakub at gcc dot gnu.org --- Author: jakub Date: Fri Jul 10 10:26:19 2015 New Revision: 225661 URL: https://gcc.gnu.org/viewcvs?rev=225661root=gccview=rev Log: PR middle-end/66820 * gimplify.c (maybe_fold_stmt): Don't fold in ORT_PARALLEL or ORT_TASK contexts. * omp-low.c (lower_omp): Call fold_stmt even if taskreg_nesting_level is non-zero. * gcc.dg/gomp/pr66820.c: New test. Added: trunk/gcc/testsuite/gcc.dg/gomp/pr66820.c Modified: trunk/gcc/ChangeLog trunk/gcc/gimplify.c trunk/gcc/omp-low.c trunk/gcc/testsuite/ChangeLog
[Bug libstdc++/66829] New: [6 Regression] FAIL: 23_containers/multiset/modifiers/erase/dr130-linkage-check.cc
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66829 Bug ID: 66829 Summary: [6 Regression] FAIL: 23_containers/multiset/modifiers/erase/dr130-linkage-c heck.cc Product: gcc Version: 6.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: libstdc++ Assignee: unassigned at gcc dot gnu.org Reporter: hjl.tools at gmail dot com CC: jason at redhat dot com Target Milestone: --- r225272 caused: spawn -ignore SIGHUP /export/build/gnu/gcc-32bit/build-i686-linux/./gcc/xg++ -shared-libgcc -B/export/build/gnu/gcc-32bit/build-i686-linux/./gcc -nostdinc++ -L/export/build/gnu/gcc-32bit/build-i686-linux/i686-linux/libstdc++-v3/src -L/export/build/gnu/gcc-32bit/build-i686-linux/i686-linux/libstdc++-v3/src/.libs -L/export/build/gnu/gcc-32bit/build-i686-linux/i686-linux/libstdc++-v3/libsupc++/.libs -B/usr/gcc-6.0.0/i686-linux/bin/ -B/usr/gcc-6.0.0/i686-linux/lib/ -isystem /usr/gcc-6.0.0/i686-linux/include -isystem /usr/gcc-6.0.0/i686-linux/sys-include -B/export/build/gnu/gcc-32bit/build-i686-linux/i686-linux/./libstdc++-v3/src/.libs -D_GLIBCXX_ASSERT -fmessage-length=0 -ffunction-sections -fdata-sections -g -O2 -D_GNU_SOURCE -DLOCALEDIR=. -nostdinc++ -I/export/build/gnu/gcc-32bit/build-i686-linux/i686-linux/libstdc++-v3/include/i686-linux -I/export/build/gnu/gcc-32bit/build-i686-linux/i686-linux/libstdc++-v3/include -I/export/gnu/import/git/sources/gcc/libstdc++-v3/libsupc++ -I/export/gnu/import/git/sources/gcc/libstdc++-v3/include/backward -I/export/gnu/import/git/sources/gcc/libstdc++-v3/testsuite/util /export/gnu/import/git/sources/gcc/libstdc++-v3/testsuite/23_containers/multiset/modifiers/erase/dr130-linkage-check.cc -fno-inline -std=gnu++11 ./testsuite_shared.so ./libtestc++.a -Wl,--gc-sections -L/export/build/gnu/gcc-32bit/build-i686-linux/i686-linux/libstdc++-v3/src/filesystem/.libs -lm -o ./dr130-linkage-check.exe /tmp/ccJO7g8A.o: In function `void __gnu_test::linkage_check_cxx98_cxx11_erasestd::multisetint, std::lessint, std::allocatorint (std::multisetint, std::lessint, std::allocatorint )': /export/gnu/import/git/sources/gcc/libstdc++-v3/testsuite/util/testsuite_containers.h:261: undefined reference to `__gnu_test::erase_external(std::multisetint, std::lessint, std::allocatorint )' /tmp/ccJO7g8A.o: In function `void __gnu_test::linkage_check_cxx98_cxx11_erase_iteratorsstd::multisetint, std::lessint, std::allocatorint (std::multisetint, std::lessint, std::allocatorint )': /export/gnu/import/git/sources/gcc/libstdc++-v3/testsuite/util/testsuite_containers.h:272: undefined reference to `__gnu_test::erase_external_iterators(std::multisetint, std::lessint, std::allocatorint )' collect2: error: ld returned 1 exit status compiler exited with status 1 output is: /tmp/ccJO7g8A.o: In function `void __gnu_test::linkage_check_cxx98_cxx11_erasestd::multisetint, std::lessint, std::allocatorint (std::multisetint, std::lessint, std::allocatorint )': /export/gnu/import/git/sources/gcc/libstdc++-v3/testsuite/util/testsuite_containers.h:261: undefined reference to `__gnu_test::erase_external(std::multisetint, std::lessint, std::allocatorint )' /tmp/ccJO7g8A.o: In function `void __gnu_test::linkage_check_cxx98_cxx11_erase_iteratorsstd::multisetint, std::lessint, std::allocatorint (std::multisetint, std::lessint, std::allocatorint )': /export/gnu/import/git/sources/gcc/libstdc++-v3/testsuite/util/testsuite_containers.h:272: undefined reference to `__gnu_test::erase_external_iterators(std::multisetint, std::lessint, std::allocatorint )' collect2: error: ld returned 1 exit status FAIL: 23_containers/multiset/modifiers/erase/dr130-linkage-check.cc (test for excess errors) Should this test be updated since we default to C++14 now?
[Bug target/66813] gcc.target/i386/asm-flag-5.c failed with -march=pentium
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66813 --- Comment #2 from uros at gcc dot gnu.org --- Author: uros Date: Fri Jul 10 11:56:48 2015 New Revision: 225662 URL: https://gcc.gnu.org/viewcvs?rev=225662root=gccview=rev Log: PR target/66813 * config/i386/i386.c (ix86_md_asm_adjust): Emit movstrictqi sequence for TARGET_ZERO_EXTEND_WITH_AND targets. testsuite/ChangeLog: PR target/66813 * gcc.target/i386/pr66813.c: New test. Added: trunk/gcc/testsuite/gcc.target/i386/pr66813.c Modified: trunk/gcc/ChangeLog trunk/gcc/config/i386/i386.c trunk/gcc/testsuite/ChangeLog
[Bug c/66826] Unused result from dlsym in constructor results in a segfault
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66826 --- Comment #1 from Daurnimator quae at daurnimator dot com --- nalaginrut (from #gcc irc channel) confirmed that the issue only occurs in GCC 5 at -O2 and higher. (the bug is *not* present in GCC 4.9 or at -O1). Note: only the compilation of shared.so matters (the main binary can be compiled with any setting or compiler and the same behaviour is shown.)
[Bug libstdc++/66829] [6 Regression] FAIL: 23_containers/multiset/modifiers/erase/dr130-linkage-check.cc
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66829 Richard Biener rguenth at gcc dot gnu.org changed: What|Removed |Added Status|UNCONFIRMED |NEW Last reconfirmed||2015-07-10 Target Milestone|--- |6.0 Ever confirmed|0 |1 --- Comment #1 from Richard Biener rguenth at gcc dot gnu.org --- Confirmed.
[Bug other/66827] [6 Regression] left shifts of negative value warnings due to C++14 switch
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66827 Richard Biener rguenth at gcc dot gnu.org changed: What|Removed |Added Target Milestone|--- |6.0
[Bug target/66813] gcc.target/i386/asm-flag-5.c failed with -march=pentium
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66813 Uroš Bizjak ubizjak at gmail dot com changed: What|Removed |Added Target||x86 Status|NEW |RESOLVED Resolution|--- |FIXED --- Comment #3 from Uroš Bizjak ubizjak at gmail dot com --- Fixed.
[Bug c++/66758] [concepts] ICE compiler deeply confused by simple-seeming concept definition
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66758 Jason Merrill jason at gcc dot gnu.org changed: What|Removed |Added Status|UNCONFIRMED |RESOLVED Resolution|--- |FIXED --- Comment #11 from Jason Merrill jason at gcc dot gnu.org --- (In reply to Eric Niebler from comment #9) Created attachment 35950 [details] Bug number 4 ICE ICE baby Fixed.
[Bug c++/66758] [concepts] ICE compiler deeply confused by simple-seeming concept definition
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66758 --- Comment #9 from Eric Niebler eric.niebler at gmail dot com --- Created attachment 35950 -- https://gcc.gnu.org/bugzilla/attachment.cgi?id=35950action=edit Bug number 4 ICE ICE baby
[Bug c++/66758] [concepts] ICE compiler deeply confused by simple-seeming concept definition
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66758 --- Comment #12 from Jason Merrill jason at gcc dot gnu.org --- (In reply to Jason Merrill from comment #11) Fixed. in r225710.
[Bug c/66838] New: Calling multiple SYSV AMD64 ABI functions from MS x64 ABI one results in clobbered parameters
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66838
Bug ID: 66838
Summary: Calling multiple SYSV AMD64 ABI functions from MS x64
ABI one results in clobbered parameters
Product: gcc
Version: 5.1.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: michal.ruza at gmail dot com
Target Milestone: ---
Created attachment 35951
-- https://gcc.gnu.org/bugzilla/attachment.cgi?id=35951action=edit
source code demonstrating the problem
This seems to be yet another corner case of bug 57003.
Description:
Calling a sequence of SYSV AMD64 ABI functions from an __attribute__((ms_abi))
function while passing an address of the same global variable to them results
in all but the first one in the sequence receiving clobbered values instead of
the expected address.
In code:
__attribute__((ms_abi, noinline, noclone)) void ms_abi_func() {
sysv_abi_func(1st call, global);
sysv_abi_func(2nd call, global);
sysv_abi_func(3rd call, global);
}
In this example only the first call of the sysv_abi_func is passed the
address of the global variable global. All the other calls of the function
are passed clobbered values.
To see the problem:
- generate assembly for the attached clobber_repro.c for the x86_64
architecture as follows:
gcc -S -O1 -m64 -o clobber_repro.S clobber_repro.c
- inspect the assembly code for the ms_abi_func fucntion
- you should see something like this after the function's prologue code:
movl$global, %esi
movl$.LC2, %edi
callsysv_abi_func
movl$.LC3, %edi
callsysv_abi_func
movl$.LC4, %edi
callsysv_abi_func
This apparently cannot work if sysv_abi_func clobbers %esi - and it is free
to do so as it is a SYSV AMD64 ABI function.
Additional notes:
- this doesn't happen when the ms_abi_func is NOT declared as
__attribute__((ms_abi))
- this doesn't happen when the sysv_abi_func IS declared as
__attribute__((ms_abi))
- this doesn't happen when the global is not a global variable - i.e. it
works when all of the calls are passed an address of the same local variable
- this doesn't happen when optimization is disabled (-O0)
[Bug c++/66834] [concepts] concept parameter kind mismatch causes hard error
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66834 --- Comment #1 from Jason Merrill jason at gcc dot gnu.org --- This was introduced by my patch for bug 66092, applying the tentative resolution of core issue 1430 to concepts as well as alias templates. This makes sense to me since they have the same issue of needing to substitute dependent arguments into the template, in this case during normalization. So I think your example is invalid, but it could use some discussion in core.
[Bug c++/66758] [concepts] ICE compiler deeply confused by simple-seeming concept definition
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66758 Eric Niebler eric.niebler at gmail dot com changed: What|Removed |Added Status|RESOLVED|UNCONFIRMED Resolution|FIXED |--- --- Comment #10 from Eric Niebler eric.niebler at gmail dot com --- Lest I seem ungrateful, thank you for your work so far. I'm still ICE-ing the compiler, though. See the fourth attachment.
Small typo in gcc/params.def
Noticed while doing translation of the gcc messages. Please apply to trunk if OK as I have no rfead/write access anymore AFAIK. 2015-07-10 Philipp Thomas p...@suse.de * params.def: fix typo. index 3e4ba3a..08b5c7f 100644 --- a/gcc/params.def +++ b/gcc/params.def @@ -572,7 +572,7 @@ DEFPARAM(PARAM_VECT_MAX_VERSION_FOR_ALIAS_CHECKS, DEFPARAM(PARAM_VECT_MAX_PEELING_FOR_ALIGNMENT, vect-max-peeling-for-alignment, - Max number of loop peels to enhancement alignment of data references in a loop, + Max number of loop peels to enhance alignment of data references in a loop, -1, -1, 64) DEFPARAM(PARAM_MAX_CSELIB_MEMORY_LOCATIONS,
[Bug middle-end/66633] [5/6 regression] ICE on valid verify_gimple failed with OpenMP
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66633
--- Comment #17 from Jakub Jelinek jakub at gcc dot gnu.org ---
Author: jakub
Date: Fri Jul 10 14:13:19 2015
New Revision: 225677
URL: https://gcc.gnu.org/viewcvs?rev=225677root=gccview=rev
Log:
Backported from mainline
2015-07-09 Jakub Jelinek ja...@redhat.com
PR middle-end/66633
* tree-nested.c (get_static_chain): Or in a flag into
info-static_chain_added.
(get_frame_field, get_nonlocal_debug_decl): Likewise.
(convert_nonlocal_omp_clauses, convert_local_omp_clauses): Revert
2015-07-01 changes.
(convert_tramp_reference_stmt): If a frame_decl or chain_decl
is needed newly inside of GIMPLE_OMP_{PARALLEL,TASK,TARGET} body,
add it to clauses.
* gcc.dg/gomp/pr66633-1.c: New test.
* gcc.dg/gomp/pr66633-2.c: New test.
* gcc.dg/gomp/pr66633-3.c: New test.
* gcc.dg/gomp/pr66633-4.c: New test.
Added:
branches/gcc-5-branch/gcc/testsuite/gcc.dg/gomp/pr66633-1.c
branches/gcc-5-branch/gcc/testsuite/gcc.dg/gomp/pr66633-2.c
branches/gcc-5-branch/gcc/testsuite/gcc.dg/gomp/pr66633-3.c
branches/gcc-5-branch/gcc/testsuite/gcc.dg/gomp/pr66633-4.c
Modified:
branches/gcc-5-branch/gcc/ChangeLog
branches/gcc-5-branch/gcc/testsuite/ChangeLog
branches/gcc-5-branch/gcc/tree-nested.c
[Bug middle-end/66633] [5/6 regression] ICE on valid verify_gimple failed with OpenMP
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66633 Jakub Jelinek jakub at gcc dot gnu.org changed: What|Removed |Added Status|REOPENED|RESOLVED Resolution|--- |FIXED --- Comment #18 from Jakub Jelinek jakub at gcc dot gnu.org --- Fixed.
Re: Small typo in gcc/params.def
On 2015.07.10 at 16:58 +0200, Philipp Thomas wrote: Noticed while doing translation of the gcc messages. Please apply to trunk if OK as I have no rfead/write access anymore AFAIK. Patches should be sent to gcc-patc...@gcc.gnu.org. gcc-bugs@gcc.gnu.org is for automated Bugzilla mail only. -- Markus
[Bug libgomp/66715] libgomp.oacc-c/../libgomp.oacc-c-c++-common/data-{2,3}.c exec fails -Ofast
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66715 vries at gcc dot gnu.org changed: What|Removed |Added Status|UNCONFIRMED |RESOLVED Resolution|--- |INVALID --- Comment #2 from vries at gcc dot gnu.org --- -Ofast: Optimize for speed disregarding exact standards compliance The testcase contains floating point operations. So, marking resolved-invalid.
[Bug middle-end/66313] Unsafe factorization of a*b+a*c
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66313 --- Comment #6 from Marek Polacek mpolacek at gcc dot gnu.org --- No, that's not a good approach either.
[Bug tree-optimization/66823] -ftree-loop-if-convert-stores miscompiles gfortran.dg/elemental_optional_args_3.f90
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66823 --- Comment #5 from Richard Biener rguenth at gcc dot gnu.org --- Author: rguenth Date: Fri Jul 10 12:33:28 2015 New Revision: 225671 URL: https://gcc.gnu.org/viewcvs?rev=225671root=gccview=rev Log: 2015-07-10 Richard Biener rguent...@suse.de Backport from mainline 2015-07-10 Richard Biener rguent...@suse.de PR tree-optimization/66823 * tree-if-conv.c (memrefs_read_or_written_unconditionally): Fix inverted predicate. * gcc.dg/vect/pr61194.c: Remove -ftree-loop-if-convert-stores which should not be necessary. XFAIL. 2015-07-08 Richard Biener rguent...@suse.de PR middle-end/43341 * toplev.c (compile_file): Reset maximum_field_alignment after parsing. 2015-07-08 Richard Biener rguent...@suse.de PR tree-optimization/66794 * gimple-ssa-isolate-paths.c (gimple_ssa_isolate_erroneous_paths): Free post-dominators. * gcc.dg/torture/pr66794.c: New testcase. Added: branches/gcc-5-branch/gcc/testsuite/gcc.dg/torture/pr66794.c Modified: branches/gcc-5-branch/gcc/ChangeLog branches/gcc-5-branch/gcc/gimple-ssa-isolate-paths.c branches/gcc-5-branch/gcc/testsuite/ChangeLog branches/gcc-5-branch/gcc/testsuite/gcc.dg/vect/pr61194.c branches/gcc-5-branch/gcc/toplev.c branches/gcc-5-branch/gcc/tree-if-conv.c
[Bug c++/66830] New: Problem with C++ unique symbols in plugins
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66830 Bug ID: 66830 Summary: Problem with C++ unique symbols in plugins Product: gcc Version: 4.9.1 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ Assignee: unassigned at gcc dot gnu.org Reporter: pleuba at swissonline dot ch Target Milestone: --- I have a problem in an application loading several plugins using the same library containing a static variable (object of class, not POD) in an inline function. The compiler generates STB_GNU_UNIQUE symbols for the the variable and its guard. Scenario: - dlopen plugin1 (dynamic loader detect the unique variables and mark DSO as not unloadable) - dlopen plugin2 (dynamic loader will uses the unique variables of plugin1 and do NOT mark DSO as unloadable, because its unique symbol is not used) - Invoke some code in plugin2 that call the inline function, so the variable (of plugin 1) is constructed and its guard marked initialized, but the destructor of the variable is incorrectly registered with __cxa_atexit to be called on unload of plugin2. - dlclose the plugin2, so it is unloaded, __CXA_finalize calls the destructor of the global variable owned by plugin1 !, keeping the guard marked as initialised. - If we reload the plugin2, it will not reconstruct the global variable as it is still marked as initialised and access it. This results either immediately or later in crash. Using compiler flag -fno-gnu-unique prevents the problem. Is this problem already known ? Philippe
[Bug rtl-optimization/66782] [5/6 Regression] Unable to run 64-bit wine after MS-SYSV register changes
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66782 --- Comment #14 from Vladimir Makarov vmakarov at gcc dot gnu.org --- Author: vmakarov Date: Fri Jul 10 13:17:02 2015 New Revision: 225674 URL: https://gcc.gnu.org/viewcvs?rev=225674root=gccview=rev Log: 2015-07-10 Vladimir Makarov vmaka...@redhat.com Backport from mainline 2015-07-09 Vladimir Makarov vmaka...@redhat.com PR rtl-optimization/66782 * lra-int.h (struct lra_insn_recog_data): Add comment about clobbered hard regs for arg_hard_regs. * lra.c (lra_set_insn_recog_data): Add clobbered hard regs. * lra-lives.c (process_bb_lives): Process clobbered hard regs. Add condition for processing used hard regs. * lra-constraints.c (update_ebb_live_info, inherit_in_ebb): Process clobbered hard regs. Modified: branches/gcc-5-branch/gcc/ChangeLog branches/gcc-5-branch/gcc/lra-constraints.c branches/gcc-5-branch/gcc/lra-int.h branches/gcc-5-branch/gcc/lra-lives.c branches/gcc-5-branch/gcc/lra.c
[Bug middle-end/66820] [5/6 Regression] internal compiler error: in get_expr_operands, at tree-ssa-operands.c:910
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66820 --- Comment #9 from Jakub Jelinek jakub at gcc dot gnu.org --- Author: jakub Date: Fri Jul 10 14:14:18 2015 New Revision: 225678 URL: https://gcc.gnu.org/viewcvs?rev=225678root=gccview=rev Log: PR middle-end/66820 * gimplify.c (maybe_fold_stmt): Don't fold in ORT_PARALLEL or ORT_TASK contexts. * omp-low.c (lower_omp): Call fold_stmt even if taskreg_nesting_level is non-zero. * gcc.dg/gomp/pr66820.c: New test. Added: branches/gcc-5-branch/gcc/testsuite/gcc.dg/gomp/pr66820.c Modified: branches/gcc-5-branch/gcc/ChangeLog branches/gcc-5-branch/gcc/gimplify.c branches/gcc-5-branch/gcc/omp-low.c branches/gcc-5-branch/gcc/testsuite/ChangeLog
[Bug middle-end/66820] [5/6 Regression] internal compiler error: in get_expr_operands, at tree-ssa-operands.c:910
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66820 Jakub Jelinek jakub at gcc dot gnu.org changed: What|Removed |Added Status|NEW |RESOLVED Resolution|--- |FIXED --- Comment #10 from Jakub Jelinek jakub at gcc dot gnu.org --- Fixed.
[Bug c++/60842] In-class initializer causes a strange error
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60842 Paolo Carlini paolo.carlini at oracle dot com changed: What|Removed |Added Status|NEW |RESOLVED Resolution|--- |FIXED Target Milestone|--- |6.0 --- Comment #6 from Paolo Carlini paolo.carlini at oracle dot com --- Done.
[Bug c++/60842] In-class initializer causes a strange error
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60842 --- Comment #5 from paolo at gcc dot gnu.org paolo at gcc dot gnu.org --- Author: paolo Date: Fri Jul 10 14:44:43 2015 New Revision: 225679 URL: https://gcc.gnu.org/viewcvs?rev=225679root=gccview=rev Log: 2015-07-10 Paolo Carlini paolo.carl...@oracle.com PR c++/60842 * g++.dg/cpp0x/nsdmi-template15.C: New. Added: trunk/gcc/testsuite/g++.dg/cpp0x/nsdmi-template15.C Modified: trunk/gcc/testsuite/ChangeLog
[Bug c/52749] Aliasing violation silently accepted
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=52749 Marek Polacek mpolacek at gcc dot gnu.org changed: What|Removed |Added Status|UNCONFIRMED |RESOLVED CC||mpolacek at gcc dot gnu.org Resolution|--- |FIXED --- Comment #2 from Marek Polacek mpolacek at gcc dot gnu.org --- -O2 -Wstrict-aliasing=1 gives the warning, so I think fixed.
[Bug tree-optimization/66372] [6 Regression] ICE on valid code at -O3 on x86_64-linux-gnu
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66372 Marek Polacek mpolacek at gcc dot gnu.org changed: What|Removed |Added CC||mpolacek at gcc dot gnu.org --- Comment #2 from Marek Polacek mpolacek at gcc dot gnu.org --- Started with r223448.
[Bug c++/62085] SFINAE where specialization parameter class member returns an abstract type fails
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62085 Paolo Carlini paolo.carlini at oracle dot com changed: What|Removed |Added Status|UNCONFIRMED |RESOLVED Resolution|--- |INVALID --- Comment #4 from Paolo Carlini paolo.carlini at oracle dot com --- Not a bug. See: https://gcc.gnu.org/ml/gcc/2015-07/msg00148.html
[Bug c++/21385] __extension__ lost inside template
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=21385 Paolo Carlini paolo.carlini at oracle dot com changed: What|Removed |Added Status|ASSIGNED|NEW Assignee|paolo.carlini at oracle dot com|unassigned at gcc dot gnu.org --- Comment #7 from Paolo Carlini paolo.carlini at oracle dot com --- Not seriously, for the time being. Unassigning.
[Bug rtl-optimization/66782] [5/6 Regression] Unable to run 64-bit wine after MS-SYSV register changes
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66782 Markus Trippelsdorf trippels at gcc dot gnu.org changed: What|Removed |Added Status|NEW |RESOLVED CC||trippels at gcc dot gnu.org Resolution|--- |FIXED --- Comment #15 from Markus Trippelsdorf trippels at gcc dot gnu.org --- fixed
[Bug c++/61991] Destructors not always called for statically initialized thread_local objects
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61991 --- Comment #1 from Ryan Johnson scovich at gmail dot com --- C++14 (N3652 [1]) specifically alters the Standard to state that a thread_local object with static or constexpr initialization may have a non-trivial destructor (implying that such a destructor should actually run): Variables with static storage duration (3.7.1) or thread storage duration (3.7.2) shall be zero-initialized (8.5) before any other initialization takes place. A constant initializer for an object o is an expression that is a constant expression, except that it may also invoke constexpr constructors for o and its subobjects even if those objects are of non-literal class types [ Note: such a class may have a non-trivial destructor ]. [1] https://isocpp.org/files/papers/N3652.html
[Bug c++/66758] [concepts] ICE compiler deeply confused by simple-seeming concept definition
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66758 Jason Merrill jason at gcc dot gnu.org changed: What|Removed |Added Status|UNCONFIRMED |RESOLVED Resolution|--- |FIXED --- Comment #3 from Jason Merrill jason at gcc dot gnu.org --- Fixed.
[Bug c++/66218] [c++-concepts] inconsistent deduction for ‘auto’ with a partial-concept-id in a deduction constraint
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66218 Jason Merrill jason at gcc dot gnu.org changed: What|Removed |Added Status|UNCONFIRMED |RESOLVED CC||andrew.n.sutton at gmail dot com, ||jason at gcc dot gnu.org Resolution|--- |FIXED --- Comment #2 from Jason Merrill jason at gcc dot gnu.org --- Fixed.
[Bug c++/60842] In-class initializer causes a strange error
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60842 --- Comment #4 from Paolo Carlini paolo.carlini at oracle dot com --- This is fixed in mainline. I'm adding the testcase and closing the bug.
[Bug c++/13590] [DR39] Non-existing ambiguity when inheriting through virtuals two identical using declarations.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=13590 --- Comment #22 from Paolo Carlini paolo.carlini at oracle dot com --- Not sure if Fabien is actively working on this..
[Bug c++/66758] [concepts] ICE compiler deeply confused by simple-seeming concept definition
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66758 Eric Niebler eric.niebler at gmail dot com changed: What|Removed |Added Status|RESOLVED|UNCONFIRMED Resolution|FIXED |--- --- Comment #5 from Eric Niebler eric.niebler at gmail dot com --- The previous fix caused the code in the third attachment to stop working.
[Bug c++/54521] g++ fails to call explicit constructors in the second step of copy initialization
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=54521 Paolo Carlini paolo.carlini at oracle dot com changed: What|Removed |Added Status|NEW |ASSIGNED Assignee|unassigned at gcc dot gnu.org |paolo.carlini at oracle dot com --- Comment #6 from Paolo Carlini paolo.carlini at oracle dot com --- Mine.
[Bug c++/66758] [concepts] ICE compiler deeply confused by simple-seeming concept definition
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66758 --- Comment #4 from Eric Niebler eric.niebler at gmail dot com --- Created attachment 35948 -- https://gcc.gnu.org/bugzilla/attachment.cgi?id=35948action=edit Preprocessed source, bug the third The previous fix caused the code in attachment #3 to stop working.
[Bug fortran/66833] New: [4.9/5.1/6.0]: ICE on assumed-rank character actual argument to intrinsic functions
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66833 Bug ID: 66833 Summary: [4.9/5.1/6.0]: ICE on assumed-rank character actual argument to intrinsic functions Product: gcc Version: 4.9.3 Status: UNCONFIRMED Severity: normal Priority: P3 Component: fortran Assignee: unassigned at gcc dot gnu.org Reporter: damian at sourceryinstitute dot org Target Milestone: --- Invoking a rank, lbound, ubound, or c_loc with an assumed-rank character array actual argument causes an ICE with gfortran 4.9.3, 5.1.0, or 6.0.0. I wonder if this is related to Bug 5733. $ cat opencoarrays.f90 subroutine gfc_descriptor_c_char(a) character a(..) print *,rank(a) ! ICE (also for lbound, ubound, and c_loc) end subroutine $ gfortran -c opencoarrays.f90 opencoarrays.f90: In function 'gfc_descriptor_c_char': opencoarrays.f90:3:0: internal compiler error: in gfc_conv_descriptor_dtype, at fortran/trans-array.c:239 print *,rank(a) ! ICE (also for lbound, ubound, and c_loc) ^ opencoarrays.f90:3:0: internal compiler error: Abort trap: 6 gfortran: internal compiler error: Abort trap: 6 (program f951) Abort trap: 6 $ gfortran --version GNU Fortran (MacPorts gcc49 4.9.3_0) 4.9.3
[Bug c++/66832] New: [concepts] parameters in requires clauses conflicting with function arguments
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66832
Bug ID: 66832
Summary: [concepts] parameters in requires clauses conflicting
with function arguments
Product: gcc
Version: c++-concepts
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: eric.niebler at gmail dot com
Target Milestone: ---
template class T, class U, unsigned N
requires requires (T t, U u) { t.foo(); u.foo(); }
void foo_all( T (t)[N], U (u)[N] ) {
for(auto x : t)
x.foo();
for(auto x : u)
x.foo();
}
struct S {
void foo() {}
};
int main() {
S rg[4] {};
foo_all(rg, rg);
}
Yields:
/cygdrive/c/Users/eric/Code/cmcstl2/test/iterator.cpp:4:23: error: conflicting
declaration ‘T ( t)[N]’
void foo_all( T (t)[N], U (u)[N] ) {
^
/cygdrive/c/Users/eric/Code/cmcstl2/test/iterator.cpp:3:25: note: previous
declaration as ‘T t’
requires requires (T t, U u) { t.foo(); u.foo(); }
^
/cygdrive/c/Users/eric/Code/cmcstl2/test/iterator.cpp: In function ‘void
foo_all(U ()[N])’:
/cygdrive/c/Users/eric/Code/cmcstl2/test/iterator.cpp:5:18: error: use of
parameter outside function body before ‘)’ token
for(auto x : t)
^
/cygdrive/c/Users/eric/Code/cmcstl2/test/iterator.cpp: In function ‘int
main()’:
/cygdrive/c/Users/eric/Code/cmcstl2/test/iterator.cpp:17:17: error: no matching
function for call to ‘foo_all(S [4], S [4])’
foo_all(rg, rg);
^
/cygdrive/c/Users/eric/Code/cmcstl2/test/iterator.cpp:4:6: note: candidate:
templateclass T, class U, unsigned int N requires predicate(r
equires(T t, U u) {t-foo();u-foo();}) void foo_all(U ()[N])
void foo_all( T (t)[N], U (u)[N] ) {
^
/cygdrive/c/Users/eric/Code/cmcstl2/test/iterator.cpp:4:6: note: template
argument deduction/substitution failed:
/cygdrive/c/Users/eric/Code/cmcstl2/test/iterator.cpp:17:17: note: candidate
expects 1 argument, 2 provided
foo_all(rg, rg);
^
[Bug c++/66834] New: [concepts] concept parameter kind mismatch causes hard error
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66834
Bug ID: 66834
Summary: [concepts] concept parameter kind mismatch causes hard
error
Product: gcc
Version: c++-concepts
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: eric.niebler at gmail dot com
Target Milestone: ---
Before rev 225651 (the fix for #66758), the following worked. It no longer
does. Not sure if it's legit.
template class From, class To
concept bool ExplicitlyConvertible =
requires (From f) {
static_castTo((From)f);
};
template class T, class... Args
concept bool Constructible =
ExplicitlyConvertibleArgs..., T ||
requires (Args... args) {
T{((Args)(args))...};
};
template class T, class...Args
constexpr bool constructible() { return false; }
Constructible{T, ...Args}
constexpr bool constructible() { return false; }
int main() {}
Yields:
/cygdrive/c/Users/eric/Code/cmcstl2/test/iterator.cpp: In function ‘constexpr
bool Constructible()’:
/cygdrive/c/Users/eric/Code/cmcstl2/test/iterator.cpp:9:5: error: pack
expansion argument for non-pack parameter ‘From’ of concept ‘template
class From, class To constexpr const bool ExplicitlyConvertibleFrom, To’
ExplicitlyConvertibleArgs..., T ||
^
/cygdrive/c/Users/eric/Code/cmcstl2/test/iterator.cpp:1:11: note: declared here
template class From, class To
^
[Bug lto/66752] spec2000 255.vortex performance compiled with GCC is ~20% lower than with CLANG
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66752 --- Comment #5 from Andrew Pinski pinskia at gcc dot gnu.org --- Looks like bug 13876.
[Bug middle-end/66353] Missing bb_has_abnormal_call_pred in basic-block.h
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66353 Marek Polacek mpolacek at gcc dot gnu.org changed: What|Removed |Added Status|UNCONFIRMED |ASSIGNED Last reconfirmed||2015-07-10 CC||mpolacek at gcc dot gnu.org Assignee|unassigned at gcc dot gnu.org |mpolacek at gcc dot gnu.org Target Milestone|--- |6.0 Ever confirmed|0 |1 --- Comment #1 from Marek Polacek mpolacek at gcc dot gnu.org --- Makes sense.
[Bug lto/66752] spec2000 255.vortex performance compiled with GCC is ~20% lower than with CLANG
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66752 Yuri Rumyantsev ysrumyan at gmail dot com changed: What|Removed |Added CC||ysrumyan at gmail dot com --- Comment #3 from Yuri Rumyantsev ysrumyan at gmail dot com --- We found out simple reproducer for this issue which is attached. The problem is redundant test in loop: for (i = -1, flag = 1; ++i N flag;) if (a[i] == b) set 'flag' to 0 do something It is clear that test 'flag==1' can be deleted since there is the only place where it is set up to zero (then-part). Note that clang deletes it.
[Bug lto/66752] spec2000 255.vortex performance compiled with GCC is ~20% lower than with CLANG
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66752 --- Comment #4 from Yuri Rumyantsev ysrumyan at gmail dot com --- Created attachment 35947 -- https://gcc.gnu.org/bugzilla/attachment.cgi?id=35947action=edit test-case to reproduce compile with -Ofast -m32 -march=slm and notice redundant test .L30: testl %edx, %edx je .L1
[Bug testsuite/66831] New: FAIL: gcc.target/i386/iinline-attr-2.c scan-assembler p2align
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66831
Bug ID: 66831
Summary: FAIL: gcc.target/i386/iinline-attr-2.c scan-assembler
p2align
Product: gcc
Version: 6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: testsuite
Assignee: unassigned at gcc dot gnu.org
Reporter: hjl.tools at gmail dot com
CC: ubizjak at gmail dot com
Target Milestone: ---
When GCC is configured with --with-cpu=nocona, we got
FAIL: gcc.target/i386/iinline-attr-2.c scan-assembler p2align
It is due to
{nocona, nocona_cost, 0, 0, 0, 0, 0},
in i386.c.
[Bug lto/66835] New: C++ openMP test failed after switching to C++14
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66835
Bug ID: 66835
Summary: C++ openMP test failed after switching to C++14
Product: gcc
Version: 6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: lto
Assignee: unassigned at gcc dot gnu.org
Reporter: evstupac at gmail dot com
Target Milestone: ---
The following test:
#define max(a, b) ( (a) (b) ? (a) : (b) )
float a[4] = {0, -1.2, 7, 0.1};
int main()
{
#pragma omp simd
for (int j = 0; j 4; j++)
{
float t1 = 0.1;
a[j] = max(t1, a[j]);
}
return (int)(a[1] - a[3]);
}
fails with ICE after recent switch to std=c++14
Compiled with -O2 -flto -fopenmp -std=c++14
The test began to fail after:
commit 23a92fc764dc04a0248a570bba74db0a7f7d843d
Author: tbsaunde tbsaunde@138bc75d-0d04-0410-961f-82ee72b054a4
Date: Tue Nov 11 02:31:00 2014 +
[Bug lto/66835] C++ openMP test failed after switching to C++14
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66835 --- Comment #1 from Stupachenko Evgeny evstupac at gmail dot com --- wrong revision bisected. Was just bootstrap fail. Searching for really bad.
[Bug rtl-optimization/66087] Invalid narrowing of MEM with containing POST_INC
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66087 --- Comment #2 from Andreas Schwab sch...@linux-m68k.org --- I think combine should reject this.
[Bug target/66703] [4.9/5/6] gcc.target/i386/readeflags-1.c aborts on -march=i586 or on -miamcu
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66703 --- Comment #6 from uros at gcc dot gnu.org --- Author: uros Date: Fri Jul 10 15:32:48 2015 New Revision: 225680 URL: https://gcc.gnu.org/viewcvs?rev=225680root=gccview=rev Log: PR target/66703 * gcc.target/i386/readeflags-1.c (readeflags_test): Declare with __attribute__((noinline, noclone)). Change x to volatile char type to prevent possible flag-clobbering zero-extensions. Modified: trunk/gcc/testsuite/ChangeLog trunk/gcc/testsuite/gcc.target/i386/readeflags-1.c
[Bug ada/66837] New: Non-Native Default_Scalar_Storage_Order Breaks Enum'Image
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66837 Bug ID: 66837 Summary: Non-Native Default_Scalar_Storage_Order Breaks Enum'Image Product: gcc Version: 6.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: ada Assignee: unassigned at gcc dot gnu.org Reporter: MatthewS.Grochowalski at ge dot com Target Milestone: --- Created attachment 35949 -- https://gcc.gnu.org/bugzilla/attachment.cgi?id=35949action=edit Test Case Encountered with build of r225405 of the scalar-storage-order branch. Attached test case dies with a STORAGE_ERROR when calling 'Image() on enumeration values. The values in the index array generated by Exp_Imgv.Build_Enumeration_Image_Tables are being byte-swapped due to the Default_Scalar_Storage_Order pragma. System.Img_Enum_New.Image_Enumeration_16 (in this case) treats the index array as native scalar storage order, causing things to blow up.
[Bug lto/66835] C++ openMP test failed after switching to C++14
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66835 --- Comment #3 from Stupachenko Evgeny evstupac at gmail dot com --- The same reproduced on GCC 5.
[Bug lto/66835] C++ openMP test failed after switching to C++14
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66835 Stupachenko Evgeny evstupac at gmail dot com changed: What|Removed |Added CC||izamyatin at gmail dot com, ||jakub at redhat dot com --- Comment #2 from Stupachenko Evgeny evstupac at gmail dot com --- The following commit made the test compiled with -O2 -flto -fopenmp -std=c++14 fail with ICE: commit 0c368492c85091d7b90cade269c45aba4cee77f5 Author: jakub jakub@138bc75d-0d04-0410-961f-82ee72b054a4 Date: Fri Nov 14 19:41:00 2014 + * tree-ssa.dce.c (eliminate_unnecessary_stmts): Eliminate IFN_GOMP_SIMD_LANE without lhs as useless. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@217584 138bc75d-0d04-0410-961f-82ee72b054a4 ICE details: lto1: internal compiler error: in operator[], at vec.h:736 0xc0a220 vectree_node*, va_heap, vl_embed::operator[](unsigned int) /export/users/evstupac/gcc/git/check2/gcc/gcc/vec.h:736 0xc0a220 vectree_node*, va_heap, vl_ptr::operator[](unsigned int) /export/users/evstupac/gcc/git/check2/gcc/gcc/vec.h:1202 0xc0a220 streamer_tree_cache_get_tree /export/users/evstupac/gcc/git/check2/gcc/gcc/tree-streamer.h:112 0xc0a220 streamer_get_pickled_tree(lto_input_block*, data_in*) /export/users/evstupac/gcc/git/check2/gcc/gcc/tree-streamer-in.c:1102 0x903af4 lto_input_tree_1(lto_input_block*, data_in*, LTO_tags, unsigned int) /export/users/evstupac/gcc/git/check2/gcc/gcc/lto-streamer-in.c:1296 0x903dba lto_input_tree(lto_input_block*, data_in*) /export/users/evstupac/gcc/git/check2/gcc/gcc/lto-streamer-in.c:1342 0xc091df lto_input_ts_decl_minimal_tree_pointers /export/users/evstupac/gcc/git/check2/gcc/gcc/tree-streamer-in.c:697 0xc091df streamer_read_tree_body(lto_input_block*, data_in*, tree_node*) /export/users/evstupac/gcc/git/check2/gcc/gcc/tree-streamer-in.c:1043 0x9034ff lto_read_tree_1 /export/users/evstupac/gcc/git/check2/gcc/gcc/lto-streamer-in.c:1172 0x9039e4 lto_read_tree /export/users/evstupac/gcc/git/check2/gcc/gcc/lto-streamer-in.c:1206 0x9039e4 lto_input_tree_1(lto_input_block*, data_in*, LTO_tags, unsigned int) /export/users/evstupac/gcc/git/check2/gcc/gcc/lto-streamer-in.c:1325 0x903d20 lto_input_scc(lto_input_block*, data_in*, unsigned int*, unsigned int*) /export/users/evstupac/gcc/git/check2/gcc/gcc/lto-streamer-in.c:1230 0x903d94 lto_input_tree(lto_input_block*, data_in*) /export/users/evstupac/gcc/git/check2/gcc/gcc/lto-streamer-in.c:1340 0x905528 input_cfg /export/users/evstupac/gcc/git/check2/gcc/gcc/lto-streamer-in.c:739 0x905528 input_function /export/users/evstupac/gcc/git/check2/gcc/gcc/lto-streamer-in.c:950 0x905528 lto_read_body_or_constructor /export/users/evstupac/gcc/git/check2/gcc/gcc/lto-streamer-in.c:1101 0x6303f9 cgraph_node::get_body() /export/users/evstupac/gcc/git/check2/gcc/gcc/cgraph.c:3170
[Bug target/66819] gcc.target/i386/pr65753.c fails with -fPIC -m32 -O2 -mregparm=3
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66819 --- Comment #1 from hjl at gcc dot gnu.org hjl at gcc dot gnu.org --- Author: hjl Date: Fri Jul 10 20:30:10 2015 New Revision: 225688 URL: https://gcc.gnu.org/viewcvs?rev=225688root=gccview=rev Log: Allow indirect sibcall with register arguments Indirect sibcall with register arguments is OK when there is register available for argument passing. gcc/ PR target/66819 * config/i386/i386.c (ix86_function_ok_for_sibcall): Allow indirect sibcall with register arguments if register available for argument passing. (init_cumulative_args): Set cfun-machine-arg_reg_available to (cum-nregs 0) or to true if function has a variable argument list. (function_arg_advance_32): Set cfun-machine-arg_reg_available to false if cum-nregs = 0. * config/i386/i386.h (machine_function): Add arg_reg_available. gcc/testsuite/ PR target/66819 * gcc.target/i386/pr66819-1.c: New test. * gcc.target/i386/pr66819-2.c: Likewise. * gcc.target/i386/pr66819-3.c: Likewise. * gcc.target/i386/pr66819-4.c: Likewise. * gcc.target/i386/pr66819-5.c: Likewise. Added: trunk/gcc/testsuite/gcc.target/i386/pr66819-1.c trunk/gcc/testsuite/gcc.target/i386/pr66819-2.c trunk/gcc/testsuite/gcc.target/i386/pr66819-3.c trunk/gcc/testsuite/gcc.target/i386/pr66819-4.c trunk/gcc/testsuite/gcc.target/i386/pr66819-5.c Modified: trunk/gcc/ChangeLog trunk/gcc/config/i386/i386.c trunk/gcc/config/i386/i386.h trunk/gcc/testsuite/ChangeLog
[Bug c++/66836] New: inconsistent unqualified lookup for friend declaration
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66836
Bug ID: 66836
Summary: inconsistent unqualified lookup for friend declaration
Product: gcc
Version: 5.1.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: barry.revzin at gmail dot com
Target Milestone: ---
Consider the following code, courtesy of Belloc
(http://stackoverflow.com/q/31348475/2069064):
struct Outer {
void f() { }
class C { };
class Inner {
friend class C;
friend void f();
static const int i = 0;
};
};
void f() { int i = Outer::Inner::i; }
class C { int i = Outer::Inner::i; };
int main() { }
According to [namespace.memdef]/3, the lookup to determine whether the entity
has been previously declared shall not consider any scopes outside the
innermost enclosing namespace.
There's some confusion as to what outside means in this context, but
regardless both GCC and Clang are inconsistent in their interpretation. Either
it means exclusively the innermost enclosing namespace (in which case both ::f
and ::C should be friends) or it just means stop at the innermost enclosing
namespace (in which case both Outer::f and Outer::C should be friends). But in
this case, both GCC and Clang friend ::f and Outer::C, which is a bug in one
direction or the other.
[Bug c++/66758] [concepts] ICE compiler deeply confused by simple-seeming concept definition
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66758 --- Comment #6 from Jason Merrill jason at gcc dot gnu.org --- Author: jason Date: Fri Jul 10 22:11:22 2015 New Revision: 225696 URL: https://gcc.gnu.org/viewcvs?rev=225696root=gccview=rev Log: PR c++/66758 * gcc/cp/pt.c (tsubst_constraint_variables): Clear cp_unevaluated_operand. Added: branches/c++-concepts/gcc/testsuite/g++.dg/concepts/req14.C Modified: branches/c++-concepts/ChangeLog.concepts branches/c++-concepts/gcc/cp/constraint.cc
[Bug c++/66758] [concepts] ICE compiler deeply confused by simple-seeming concept definition
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66758 Jason Merrill jason at gcc dot gnu.org changed: What|Removed |Added Status|UNCONFIRMED |RESOLVED Resolution|--- |FIXED --- Comment #7 from Jason Merrill jason at gcc dot gnu.org --- (In reply to Eric Niebler from comment #4) The previous fix caused the code in attachment #3 [details] to stop working. Fixed.
[Bug c++/66758] [concepts] ICE compiler deeply confused by simple-seeming concept definition
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66758 --- Comment #8 from Jason Merrill jason at gcc dot gnu.org --- Author: jason Date: Fri Jul 10 22:45:41 2015 New Revision: 225704 URL: https://gcc.gnu.org/viewcvs?rev=225704root=gccview=rev Log: PR c++/66758 PR c++/66832 * gcc/cp/parser.c (cp_parser_requires_expression): Call grokparms here. (cp_parser_requirement_parameter_list): Not here. Added: branches/c++-concepts/gcc/testsuite/g++.dg/concepts/req15.C Modified: branches/c++-concepts/ChangeLog.concepts branches/c++-concepts/gcc/cp/parser.c
[Bug c++/66832] [concepts] parameters in requires clauses conflicting with function arguments
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66832 --- Comment #1 from Jason Merrill jason at gcc dot gnu.org --- Author: jason Date: Fri Jul 10 22:45:41 2015 New Revision: 225704 URL: https://gcc.gnu.org/viewcvs?rev=225704root=gccview=rev Log: PR c++/66758 PR c++/66832 * gcc/cp/parser.c (cp_parser_requires_expression): Call grokparms here. (cp_parser_requirement_parameter_list): Not here. Added: branches/c++-concepts/gcc/testsuite/g++.dg/concepts/req15.C Modified: branches/c++-concepts/ChangeLog.concepts branches/c++-concepts/gcc/cp/parser.c
[Bug c++/66832] [concepts] parameters in requires clauses conflicting with function arguments
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66832 Jason Merrill jason at gcc dot gnu.org changed: What|Removed |Added Status|UNCONFIRMED |RESOLVED Resolution|--- |FIXED --- Comment #2 from Jason Merrill jason at gcc dot gnu.org --- Fixed.
[Bug c++/54521] g++ fails to call explicit constructors in the second step of copy initialization
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=54521 --- Comment #7 from paolo at gcc dot gnu.org paolo at gcc dot gnu.org --- Author: paolo Date: Fri Jul 10 22:56:35 2015 New Revision: 225705 URL: https://gcc.gnu.org/viewcvs?rev=225705root=gccview=rev Log: /cp 2015-07-10 Paolo Carlini paolo.carl...@oracle.com PR c++/54521 * call.c (convert_like_real): Do not set LOOKUP_ONLYCONVERTING for the second step of copy-initialization. /testsuite 2015-07-10 Paolo Carlini paolo.carl...@oracle.com PR c++/54521 * g++.dg/init/explicit3.C: New. Added: trunk/gcc/testsuite/g++.dg/init/explicit3.C Modified: trunk/gcc/cp/ChangeLog trunk/gcc/cp/call.c trunk/gcc/testsuite/ChangeLog
[Bug c++/54521] g++ fails to call explicit constructors in the second step of copy initialization
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=54521 Paolo Carlini paolo.carlini at oracle dot com changed: What|Removed |Added Status|ASSIGNED|RESOLVED Resolution|--- |FIXED Assignee|paolo.carlini at oracle dot com|unassigned at gcc dot gnu.org Target Milestone|--- |6.0 --- Comment #8 from Paolo Carlini paolo.carlini at oracle dot com --- Fixed for 6.0.
[Bug c++/30044] ICE in tsubst, at cp/pt.c:7359
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=30044 --- Comment #8 from Patrick Palka ppalka at gcc dot gnu.org --- Author: ppalka Date: Fri Jul 10 23:21:39 2015 New Revision: 225706 URL: https://gcc.gnu.org/viewcvs?rev=225706root=gccview=rev Log: Fix PR c++/30044 gcc/cp/ChangeLog: PR c++/30044 * pt.c (begin_template_parm_list): Add a dummy parameter level to current_template_parms. (end_template_parm_list): Remove the dummy parameter level before adding the real one. (tsubst): Don't attempt to substitute for template parameters corresponding to a dummy argument level. (template_parms_to_args): Remove obsolete hack for giving template template arguments the proper level. (splite_late_return_type): Remove obsolete hack for giving template template arguments the proper level. * error.c (dump_template_decl): Don't print dummy template levels. gcc/testsuite/ChangeLog PR c++/30044 * g++.dg/cpp0x/auto46.C: New test. * g++.dg/template/pr30044.C: New test. * g++.dg/template/shadow2.C: New test. * g++.dg/template/error55.C: New test. * g++.dg/template/crash83.C: Accept any error string. * g++.dg/cpp0x/variadic18.C: Adjust to avoid shadowing template parameters. * g++.dg/cpp0x/variadic18.C: Likewise * g++.dg/template/canon-type-13.C: Likewise. * g++.old-deja/g++.pt/ttp42.C: Likewise. * g++.dg/torture/20070621-1.C: Likewise. Added: trunk/gcc/testsuite/g++.dg/cpp0x/auto46.C trunk/gcc/testsuite/g++.dg/template/error55.C trunk/gcc/testsuite/g++.dg/template/pr30044.C trunk/gcc/testsuite/g++.dg/template/shadow2.C Modified: trunk/gcc/cp/ChangeLog trunk/gcc/cp/error.c trunk/gcc/cp/pt.c trunk/gcc/testsuite/ChangeLog trunk/gcc/testsuite/g++.dg/cpp0x/variadic18.C trunk/gcc/testsuite/g++.dg/cpp0x/variadic19.C trunk/gcc/testsuite/g++.dg/template/canon-type-13.C trunk/gcc/testsuite/g++.dg/template/crash83.C trunk/gcc/testsuite/g++.dg/torture/20070621-1.C trunk/gcc/testsuite/g++.old-deja/g++.pt/ttp42.C
[Bug tree-optimization/66740] [6 Regression] omp simd reduction miscompiles at -O3 with AVX (recent regression)
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66740 --- Comment #4 from tprince at computer dot org --- It optimizes with implicit simd reduction and gives correct result with option -ffast-math in place of -fopenmp.
