[Bug middle-end/62078] [5 Regression] ICE: verify_flow_info failed: missing REG_EH_REGION note at the end of bb 2 with -fdelete-dead-exceptions
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62078 Marek Polacek mpolacek at gcc dot gnu.org changed: What|Removed |Added Status|UNCONFIRMED |NEW Last reconfirmed||2014-08-15 Ever confirmed|0 |1
[Bug middle-end/62078] [5 Regression] ICE: verify_flow_info failed: missing REG_EH_REGION note at the end of bb 2 with -fdelete-dead-exceptions
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62078 Marek Polacek mpolacek at gcc dot gnu.org changed: What|Removed |Added CC||ebotcazou at gcc dot gnu.org, ||mpolacek at gcc dot gnu.org Known to fail|4.10.0 |5.0 --- Comment #2 from Marek Polacek mpolacek at gcc dot gnu.org --- Started with r212424.
[Bug tree-optimization/62151] New: wrong code at -O2 and -O3 on x86_64-linux-gnu
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62151
Bug ID: 62151
Summary: wrong code at -O2 and -O3 on x86_64-linux-gnu
Product: gcc
Version: 5.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: su at cs dot ucdavis.edu
The current gcc trunk miscompiles the following code on x86_64-linux-gnu at -O2
and -O3 in both 32-bit and 64-bit modes.
This is a regression from 4.9.x.
$ gcc-trunk -v
Using built-in specs.
COLLECT_GCC=gcc-trunk
COLLECT_LTO_WRAPPER=/usr/local/gcc-trunk/libexec/gcc/x86_64-unknown-linux-gnu/4.10.0/lto-wrapper
Target: x86_64-unknown-linux-gnu
Configured with: ../gcc-trunk/configure --prefix=/usr/local/gcc-trunk
--enable-languages=c,c++ --disable-werror --enable-multilib
Thread model: posix
gcc version 4.10.0 20140814 (experimental) [trunk revision 213937] (GCC)
$
$ gcc-trunk -Os small.c; a.out
$ gcc-4.9 -O2 small.c; a.out
$
$ gcc-trunk -O2 small.c; a.out
Aborted (core dumped)
$ gcc-trunk -O3 small.c; a.out
Aborted (core dumped)
$
int a, c, d, e, f, g, h, i;
short b;
int
fn1 ()
{
b = 0;
for (;;)
{
int j[2];
j[f] = 0;
if (h)
d = 0;
else
{
for (; f; f++)
;
for (a = 0; a 1; a++)
for (;;)
{
i = b ((b ^ 1) 83647) ? b : b - 1;
g = 1 ? i : 0;
e = j[0];
if (c)
break;
return 0;
}
}
}
}
int
main ()
{
fn1 ();
if (g != -1)
__builtin_abort ();
return 0;
}
[Bug c++/62152] New: ICE caused by using __builtin_ia32_pause() inside C++11 noexcept functions on Windows
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62152
Bug ID: 62152
Summary: ICE caused by using __builtin_ia32_pause() inside
C++11 noexcept functions on Windows
Product: gcc
Version: 4.9.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: lh_mouse at 126 dot com
// ice.cpp
void foo() noexcept {
__builtin_ia32_pause();
// also reproducable with ::_mm_pause(); (requires #include immintrins.h)
}
// EOF
The above code will result in an ICE when compiled to i686 code:
E:\Desktopg++ ice.cpp -std=c++14 -m32 -c
ice.cpp: In function 'void foo()':
ice.cpp:3:1: internal compiler error: in ix86_compute_frame_layout, at
config/i386/i386.c:9510
}
^
Please submit a full bug report,
with preprocessed source if appropriate.
See http://sourceforge.net/projects/mingw-w64 for instructions.
If compiled to x86_64 code it won't ICE on Windows.
[Bug tree-optimization/62151] [5 Regression] wrong code at -O2 and -O3 on x86_64-linux-gnu
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62151 Marek Polacek mpolacek at gcc dot gnu.org changed: What|Removed |Added Status|UNCONFIRMED |NEW Last reconfirmed||2014-08-15 CC||mpolacek at gcc dot gnu.org, ||zhenqiang.chen at linaro dot org Summary|wrong code at -O2 and -O3 |[5 Regression] wrong code |on x86_64-linux-gnu |at -O2 and -O3 on ||x86_64-linux-gnu Ever confirmed|0 |1 --- Comment #1 from Marek Polacek mpolacek at gcc dot gnu.org --- Started with r211885.
[Bug tree-optimization/62151] [5 Regression] wrong code at -O2 and -O3 on x86_64-linux-gnu
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62151 Marek Polacek mpolacek at gcc dot gnu.org changed: What|Removed |Added Target Milestone|--- |5.0
[Bug middle-end/62092] libgomp.c++/target-2.C FAIL while compiling for OpenMP 4.0 offload target
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62092 --- Comment #3 from Jakub Jelinek jakub at gcc dot gnu.org --- Author: jakub Date: Fri Aug 15 07:40:03 2014 New Revision: 214001 URL: https://gcc.gnu.org/viewcvs?rev=214001root=gccview=rev Log: PR middle-end/62092 * gimplify.c (gimplify_adjust_omp_clauses_1): Don't remove OMP_CLAUSE_SHARED for global vars if the global var is mentioned in OMP_CLAUSE_MAP in some outer target region. Modified: trunk/gcc/ChangeLog trunk/gcc/gimplify.c
[Bug middle-end/62092] libgomp.c++/target-2.C FAIL while compiling for OpenMP 4.0 offload target
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62092 --- Comment #4 from Jakub Jelinek jakub at gcc dot gnu.org --- Author: jakub Date: Fri Aug 15 07:40:37 2014 New Revision: 214002 URL: https://gcc.gnu.org/viewcvs?rev=214002root=gccview=rev Log: PR middle-end/62092 * gimplify.c (gimplify_adjust_omp_clauses_1): Don't remove OMP_CLAUSE_SHARED for global vars if the global var is mentioned in OMP_CLAUSE_MAP in some outer target region. Modified: branches/gcc-4_9-branch/gcc/ChangeLog branches/gcc-4_9-branch/gcc/gimplify.c
[Bug fortran/62107] libgomp.fortran/target2.f90 error while compiling for OpenMP 4.0 offload target
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62107 --- Comment #5 from Jakub Jelinek jakub at gcc dot gnu.org --- Author: jakub Date: Fri Aug 15 07:41:06 2014 New Revision: 214003 URL: https://gcc.gnu.org/viewcvs?rev=214003root=gccview=rev Log: PR fortran/62107 * trans-openmp.c (gfc_omp_finish_clause): Handle scalar pointer or allocatable passed by reference. (gfc_trans_omp_clauses) case OMP_LIST_MAP: Likewise. Modified: trunk/gcc/fortran/ChangeLog trunk/gcc/fortran/trans-openmp.c
[Bug fortran/62107] libgomp.fortran/target2.f90 error while compiling for OpenMP 4.0 offload target
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62107 --- Comment #6 from Jakub Jelinek jakub at gcc dot gnu.org --- Author: jakub Date: Fri Aug 15 07:41:29 2014 New Revision: 214004 URL: https://gcc.gnu.org/viewcvs?rev=214004root=gccview=rev Log: PR fortran/62107 * trans-openmp.c (gfc_omp_finish_clause): Handle scalar pointer or allocatable passed by reference. (gfc_trans_omp_clauses) case OMP_LIST_MAP: Likewise. Modified: branches/gcc-4_9-branch/gcc/fortran/ChangeLog branches/gcc-4_9-branch/gcc/fortran/trans-openmp.c
[Bug rtl-optimization/62151] [5 Regression] wrong code at -O2 and -O3 on x86_64-linux-gnu
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62151 --- Comment #2 from Marek Polacek mpolacek at gcc dot gnu.org --- Seems like with -fno-move-loop-invariants even gcc 4.9 miscompiles this.
[Bug middle-end/62092] libgomp.c++/target-2.C FAIL while compiling for OpenMP 4.0 offload target
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62092 Jakub Jelinek jakub at gcc dot gnu.org changed: What|Removed |Added Status|ASSIGNED|RESOLVED CC|jakub at redhat dot com| Resolution|--- |FIXED --- Comment #5 from Jakub Jelinek jakub at gcc dot gnu.org --- Fixed.
[Bug fortran/62107] libgomp.fortran/target2.f90 error while compiling for OpenMP 4.0 offload target
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62107 Jakub Jelinek jakub at gcc dot gnu.org changed: What|Removed |Added Status|ASSIGNED|RESOLVED Resolution|--- |FIXED --- Comment #7 from Jakub Jelinek jakub at gcc dot gnu.org --- Fixed.
[Bug tree-optimization/62031] [4.8/4.9/5 Regression] Different results between O2 and O2 -fpredictive-commoning
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62031 --- Comment #6 from Richard Biener rguenth at gcc dot gnu.org --- Author: rguenth Date: Fri Aug 15 07:50:40 2014 New Revision: 214006 URL: https://gcc.gnu.org/viewcvs?rev=214006root=gccview=rev Log: 2014-08-15 Richard Biener rguent...@suse.de PR tree-optimization/62031 * tree-data-ref.c (dr_analyze_indices): Do not set DR_UNCONSTRAINED_BASE. (dr_may_alias_p): All indirect accesses have to go the formerly DR_UNCONSTRAINED_BASE path. * tree-data-ref.h (struct indices): Remove unconstrained_base member. (DR_UNCONSTRAINED_BASE): Remove. * gcc.dg/torture/pr62031.c: New testcase. Added: trunk/gcc/testsuite/gcc.dg/torture/pr62031.c Modified: trunk/gcc/ChangeLog trunk/gcc/testsuite/ChangeLog trunk/gcc/tree-data-ref.c trunk/gcc/tree-data-ref.h
[Bug tree-optimization/13962] [tree-ssa] make fold use alias information to optimize pointer comparisons
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=13962 --- Comment #8 from rguenther at suse dot de rguenther at suse dot de --- On Thu, 14 Aug 2014, glisse at gcc dot gnu.org wrote: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=13962 --- Comment #7 from Marc Glisse glisse at gcc dot gnu.org --- While looking at some unrelated issue, I noticed the following: _41 = operator new (28); ... if (_41 != _S_empty_rep_storage) which happens with a simple use of std::string (with some extra inlining). __builtin_malloc(42)==var is not optimized either, so it isn't (only) an issue with operator new. If the general case is too dangerous, maybe there is at least some subset that could safely be optimized? Well, not sure if really dangerous, but yes, doing pointer against address-of-decl disambiguation should be easily possible. I'll try to hack sth together later today.
[Bug rtl-optimization/62151] [5 Regression] wrong code at -O2 and -O3 on x86_64-linux-gnu
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62151 Jakub Jelinek jakub at gcc dot gnu.org changed: What|Removed |Added CC||jakub at gcc dot gnu.org --- Comment #3 from Jakub Jelinek jakub at gcc dot gnu.org --- With -O3 -fno-move-loop-invariants it started with r208165.
[Bug rtl-optimization/62151] [5 Regression] wrong code at -O2 and -O3 on x86_64-linux-gnu
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62151 amker at gcc dot gnu.org changed: What|Removed |Added CC||amker at gcc dot gnu.org --- Comment #4 from amker at gcc dot gnu.org --- (In reply to Jakub Jelinek from comment #3) With -O3 -fno-move-loop-invariants it started with r208165. It's my checkin, I shall have a look. Thanks.
[Bug c++/62101] deleted definitions of friend functions are rejected
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62101 Paolo Carlini paolo.carlini at oracle dot com changed: What|Removed |Added Status|UNCONFIRMED |RESOLVED Resolution|--- |FIXED Target Milestone|--- |5.0 --- Comment #2 from Paolo Carlini paolo.carlini at oracle dot com --- Fixed.
[Bug tree-optimization/13962] [tree-ssa] make fold use alias information to optimize pointer comparisons
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=13962 --- Comment #9 from Richard Biener rguenth at gcc dot gnu.org --- Created attachment 6 -- https://gcc.gnu.org/bugzilla/attachment.cgi?id=6action=edit patch Like this - does it help the particular case? Note that one issue is that points-to doesn't track NULL-ness reliably (like may-point to zero if it may point to a weak decl), and we drop maybe-NULL-ness because we don't use it. Likewise we don't keep track of pointers to CONST_DECLs or LABEL_DECLs or FUNCTION_DECLs (we simply drop them on the floor rather than treating them as anything). The patch doesn't bootstrap which means it probably reveals bugs in points-to. This is what I meant with dangerous ;)
[Bug fortran/62142] [4.9/5 Regression] internal compiler error: Segmentation fault (X = X - L*floor(X/L))
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62142 Dominique d'Humieres dominiq at lps dot ens.fr changed: What|Removed |Added Status|UNCONFIRMED |NEW Known to work||4.8.3 Keywords||ice-on-invalid-code, ||ice-on-valid-code Last reconfirmed||2014-08-15 CC||tkoenig at gcc dot gnu.org Ever confirmed|0 |1 Summary|internal compiler error:|[4.9/5 Regression] internal |Segmentation fault (X = X - |compiler error: |L*floor(X/L)) |Segmentation fault (X = X - ||L*floor(X/L)) Known to fail||4.9.1, 5.0 --- Comment #4 from Dominique d'Humieres dominiq at lps dot ens.fr --- The codes in comments 0, 1, and 2 compile with gfortran 4.8, but not with 4.9 nor trunk (5.0). Revision r201916 (2013-08-22) is OK, r202111 (2013-08-30) gives the ICE, likely r202070.
[Bug fortran/62142] [4.9/5 Regression] internal compiler error: Segmentation fault (X = X - L*floor(X/L))
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62142 --- Comment #5 from Dominique d'Humieres dominiq at lps dot ens.fr --- I also get an ICE for X = ceiling(X) and X = aint(X) but not if I replace floor with sin or real.
[Bug ipa/61800] [5 Regression] ICE: Segmentation fault during Firefox build
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61800
Markus Trippelsdorf trippels at gcc dot gnu.org changed:
What|Removed |Added
Status|UNCONFIRMED |NEW
Last reconfirmed||2014-08-15
Ever confirmed|0 |1
--- Comment #2 from Markus Trippelsdorf trippels at gcc dot gnu.org ---
Testcase from comment2 now passes.
But here's a new variant:
markus@x4 xslt % cat test.ii
#pragma GCC visibility push(hidden)
class A
{
public:
unsigned long m_fn1 () const;
};
class B;
class C
{
public:
;
virtual bool m_fn2 (void) = 0;
};
class D
{
virtual bool m_fn3 (const int p1, B *p2) = 0;
};
class F : public D
{
bool m_fn3 (const int p1, B *p2);
A mPredicates;
};
class B
{
};
class G : public B
{
virtual unsigned int m_fn4 () = 0;
};
class H : public G
{
public:
int txNodeSetContext_aContextNodeSet;
H (B *p1) {}
int
m_fn5 ()
{
return mPosition m_fn4 ();
}
unsigned int m_fn4 ();
unsigned int mPosition;
};
unsigned int a;
C *b;
bool
F::m_fn3 (const int p1, B *p2)
{
if (!b-m_fn2 ())
return false;
unsigned int c = mPredicates.m_fn1 ();
for (1; 1 c; ++a)
{
H d (p2);
while (d.m_fn5 ())
{
do
{
}
while (0);
}
}
}
markus@x4 xslt % /var/tmp/gcc_test/usr/local/bin/c++ -c -O2 test.ii
test.ii: In member function ‘virtual bool F::m_fn3(const int, B*)’:
test.ii:63:1: internal compiler error: Segmentation fault
}
^
0xb9ddcf crash_signal
../../gcc/gcc/toplev.c:337
0x9fd5ea decl_maybe_in_construction_p(tree_node*, tree_node*,
gimple_statement_base*, tree_node*)
../../gcc/gcc/ipa-devirt.c:2214
0x9fe561 get_polymorphic_call_info(tree_node*, tree_node*, tree_node**, long*,
ipa_polymorphic_call_context*, gimple_statement_base*)
../../gcc/gcc/ipa-devirt.c:2436
0x848244 cgraph_node::create_indirect_edge(gimple_statement_base*, int, long,
int)
../../gcc/gcc/cgraph.c:968
0x852af1 cgraph_clone_edge(cgraph_edge*, cgraph_node*, gimple_statement_base*,
unsigned int, long, int, bool)
../../gcc/gcc/cgraphclones.c:139
0x85427f cgraph_node::create_version_clone(tree_node*, veccgraph_edge*,
va_heap, vl_ptr, bitmap_head*)
../../gcc/gcc/cgraphclones.c:876
0x8543c7 cgraph_node::create_version_clone_with_body(veccgraph_edge*, va_heap,
vl_ptr, vecipa_replace_map*, va_gc, vl_embed*, bitmap_head*, bool,
bitmap_head*, basic_block_def*, char const*)
../../gcc/gcc/cgraphclones.c:943
0x10d1adb split_function
../../gcc/gcc/ipa-split.c:1235
0x10d5d8e execute_split_functions
../../gcc/gcc/ipa-split.c:1636
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See http://gcc.gnu.org/bugs.html for instructions.
markus@x4 xslt %
[Bug tree-optimization/62114] [graphite] ICE using -floop-parallelize-all and -ffast-math
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62114
Matthias Klose doko at gcc dot gnu.org changed:
What|Removed |Added
CC||doko at gcc dot gnu.org
Known to fail||4.8.3
--- Comment #4 from Matthias Klose doko at gcc dot gnu.org ---
this test case fails on the 4.8 and 4.9 branches, but succeeds with trunk
20140815.
$ cat tst.c
int a, b;
fn1() {
for (; a; a++)
b |= 1;
}
$ gcc -c -Ofast -floop-parallelize-all tst.c tst.c: In function 'fn1':
tst.c:2:1: internal compiler error: Segmentation fault
fn1() {
^
Please submit a full bug report,
with preprocessed source if appropriate.
(gdb) bt
#0 0x00cdf3ea in compute_deps(scop*, vecpoly_bb*, va_heap, vl_ptr,
isl_union_map**, isl_union_map**, isl_union_map**, isl_union_map**,
isl_union_map**, isl_union_map**, isl_union_map**, isl_union_map**,
isl_union_map**, isl_union_map**, isl_union_map**, isl_union_map**) ()
#1 0x00cdf913 in loop_is_parallel_p(loop*, hash_tablebb_pbb_hasher,
xcallocator, int)
()
#2 0x00cdd9fd in ?? ()
#3 0x00cddd72 in gloog(scop*, hash_tablebb_pbb_hasher, xcallocator)
()
#4 0x00cdac09 in graphite_transform_loops() ()
#5 0x00cdb0f7 in ?? ()
#6 0x00818b3b in execute_one_pass(opt_pass*) ()
#7 0x00818dd6 in execute_pass_list(opt_pass*) ()
#8 0x00818de8 in execute_pass_list(opt_pass*) ()
#9 0x00818de8 in execute_pass_list(opt_pass*) ()
#10 0x00818de8 in execute_pass_list(opt_pass*) ()
#11 0x0063f656 in ?? ()
#12 0x00640f4d in compile() ()
#13 0x006413a5 in finalize_compilation_unit() ()
#14 0x005648ec in c_write_global_declarations() ()
#15 0x008b353d in ?? ()
#16 0x008b50d0 in toplev_main(int, char**) ()
#17 0x766e7b45 in __libc_start_main (main=0x552750 main, argc=18,
argv=0x7fffe588, init=optimized out, fini=optimized out,
rtld_fini=optimized out,
stack_end=0x7fffe578) at libc-start.c:287
#18 0x0055297f in _start ()
[Bug tree-optimization/13962] [tree-ssa] make fold use alias information to optimize pointer comparisons
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=13962 Marc Glisse glisse at gcc dot gnu.org changed: What|Removed |Added CC||glisse at gcc dot gnu.org --- Comment #10 from Marc Glisse glisse at gcc dot gnu.org --- (In reply to Richard Biener from comment #9) Created attachment 6 [details] patch Like this - does it help the particular case? _S_empty_rep_storage has DECL_WEAK, so it doesn't help here :-(
[Bug c++/62153] New: warn for bool expression compared with integer different from 0/1
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62153
Bug ID: 62153
Summary: warn for bool expression compared with integer
different from 0/1
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: enhancement
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: manu at gcc dot gnu.org
#define X(x) (x == 1)
void foo(void)
{
int a;
if (X(a) == 2) {
return;
}
}
Clang++ warns for this by default:
test.c:6:12: warning: comparison of constant 2 with expression of type 'bool'
is always false [-Wtautological-constant-out-of-range-compare]
if (X(a) == 2) {
^ ~
[Bug c++/62153] warn for bool expression compared with integer different from 0/1
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62153 --- Comment #1 from Manuel López-Ibáñez manu at gcc dot gnu.org --- This should be enabled in GCC bootstrap: https://gcc.gnu.org/ml/gcc-patches/2014-08/msg01555.html
[Bug libstdc++/62154] New: std::throw_with_nested should not require a polymorphic type
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62154
Bug ID: 62154
Summary: std::throw_with_nested should not require a
polymorphic type
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: libstdc++
Assignee: unassigned at gcc dot gnu.org
Reporter: jaak at ristioja dot ee
#include exception
struct E { E(int) {} };
int main() { std::throw_with_nested(E(42)); return 0; }
Compiling with g++ -std=c++11 -Wall -Wextra. Tried with GCC 4.7.4, 4.8.3 and
4.9.1 and Clang.
In file included from
/usr/lib/gcc/x86_64-pc-linux-gnu/4.9.1/include/g++-v4/exception:163:0,
from test.cpp:1:
/usr/lib/gcc/x86_64-pc-linux-gnu/4.9.1/include/g++-v4/bits/nested_exception.h:
In instantiation of 'static const std::nested_exception*
std::__get_nested_helper_Ex::_S_get(const _Ex) [with _Ex = E]':
/usr/lib/gcc/x86_64-pc-linux-gnu/4.9.1/include/g++-v4/bits/nested_exception.h:104:51:
required from 'const std::nested_exception* std::__get_nested_exception(const
_Ex) [with _Ex = E]'
/usr/lib/gcc/x86_64-pc-linux-gnu/4.9.1/include/g++-v4/bits/nested_exception.h:138:38:
required from 'void std::throw_with_nested(_Ex) [with _Ex = E]'
test.cpp:6:31: required from here
/usr/lib/gcc/x86_64-pc-linux-gnu/4.9.1/include/g++-v4/bits/nested_exception.h:90:59:
error: cannot dynamic_cast ' __ex' (of type 'const struct E*') to type 'const
class std::nested_exception*' (source type is not polymorphic)
{ return dynamic_castconst nested_exception*(__ex); }
^
[Bug rtl-optimization/62151] [5 Regression] wrong code at -O2 and -O3 on x86_64-linux-gnu
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62151 --- Comment #5 from Richard Biener rguenth at gcc dot gnu.org --- Note that probably also made a latent issue pop up.
[Bug rtl-optimization/62151] [5 Regression] wrong code at -O2 and -O3 on x86_64-linux-gnu
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62151 Richard Biener rguenth at gcc dot gnu.org changed: What|Removed |Added Keywords||wrong-code Priority|P3 |P1
[Bug c++/62155] New: ICE in tsubst_copy, at cp/pt.c:12544
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62155
Bug ID: 62155
Summary: ICE in tsubst_copy, at cp/pt.c:12544
Product: gcc
Version: 4.9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: doko at gcc dot gnu.org
works on the trunk, fails on the 4.8 and 4.9 branches:
$ cat test.cc
template typename T struct S {
T i{[this] {}};
};
Sint s;
$ /usr/lib/gcc-snapshot/bin/g++ -std=c++11 -c test.cc
test.cc:5:8: error: cannot convert 'brace-enclosed initializer list' to 'int'
in initialization
Sint s;
^
test.cc: In constructor 'constexpr Sint::S()':
test.cc:1:30: error: cannot convert 'brace-enclosed initializer list' to
'int' in initialization
template typename T struct S {
^
test.cc: At global scope:
test.cc:5:8: note: synthesized method 'constexpr Sint::S()' first required
here
Sint s;
^
$ g++ -std=c++11 -c test.cc
test.cc: In instantiation of 'struct Sint::lambda()':
test.cc:1:30: required from here
test.cc:2:8: internal compiler error: in tsubst_copy, at cp/pt.c:12544
T i{[this] {}};
^
Please submit a full bug report,
with preprocessed source if appropriate.
[Bug inline-asm/62144] Frame pointer required, but reserved error with -fomit-frame-pointer but only with -m32 -O2
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62144 Richard Biener rguenth at gcc dot gnu.org changed: What|Removed |Added Status|UNCONFIRMED |NEW Last reconfirmed||2014-08-15 CC||vmakarov at gcc dot gnu.org Ever confirmed|0 |1 --- Comment #1 from Richard Biener rguenth at gcc dot gnu.org --- frame_pointer_needed is set by setup_can_eliminate. Which means that desipte -fomit-frame-pointer IRA is not able to eliminate the frame pointer? Vlad?
[Bug fortran/62142] [4.9/5 Regression] internal compiler error: Segmentation fault (X = X - L*floor(X/L))
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62142 Richard Biener rguenth at gcc dot gnu.org changed: What|Removed |Added Target Milestone|--- |4.9.2
[Bug middle-end/62140] [GCC-4.10.0][ASAN] ICE: : in build2_stat, at tree.c:4265
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62140 Richard Biener rguenth at gcc dot gnu.org changed: What|Removed |Added Status|UNCONFIRMED |NEW Last reconfirmed||2014-08-15 Version|unknown |5.0 Summary|[GCC-4.10.0] ICE: : in |[GCC-4.10.0][ASAN] ICE: : |build2_stat, at tree.c:4265 |in build2_stat, at ||tree.c:4265 Ever confirmed|0 |1 --- Comment #1 from Richard Biener rguenth at gcc dot gnu.org --- Confirmed.
[Bug libstdc++/62154] std::throw_with_nested should not require a polymorphic type
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62154 Jonathan Wakely redi at gcc dot gnu.org changed: What|Removed |Added Status|UNCONFIRMED |NEW Last reconfirmed||2014-08-15 Ever confirmed|0 |1 --- Comment #1 from Jonathan Wakely redi at gcc dot gnu.org --- The implementation conforms to http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2619.pdf but that's not the same as the C++11 spec
[Bug bootstrap/62077] --with-build-config=bootstrap-lto fails
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62077 --- Comment #40 from Sven C. Dack sven.c.dack at virginmedia dot com --- I ran benchmarks and got some unusual results. Or perhaps it is a regression? I have created 4 versions of gcc and used these to timed the time it takes to compile a linux kernel. The configuration of the 4 gcc's are: CFLAGS='-pipe -O2 -march=native -fomit-frame-pointer -fno-builtin-memcmp' default: configure ... make bootstrap profiled: configure ... make profiledbootstrap lto: configure ... --with-build-config=bootstrap-lto make bootstrap lto-plugin: configure ... --with-build-config=bootstrap-lto --with-boot-ldflags=-fuse-linker-plugin make bootstrap The results are the averages (and deviations) of 5 runs with each compiler: avg stdev % default:282.86s0.56s, 0.20%100.00% (base) profiled: 255.76s0.72s, 0.28%+10.60% lto:282.80s0.16s, 0.06% +0.02% lto-plugin: 285.41s0.49s, 0.17% -0.89% The file sizes of the cc1's are: default:84920k profiled: 90176k lto:71204k lto-plugin: 60024k So boot strapping with LTO does not make gcc faster, but only smaller and also takes more time. It is almost as if I had used -Os (and not -O2). With the linker plugin enabled does it actually link libgcc_s.so and libstdc++.so dynamically to it, while for the other three it did not: default cc1: libmpc.so.3 = /home/sven/gcc-default/lib/libmpc.so.3 libmpfr.so.4 = /home/sven/gcc-default/lib/libmpfr.so.4 libgmp.so.10 = /home/sven/gcc-default/lib/libgmp.so.10 profiled cc1: libmpc.so.3 = /home/sven/gcc-profiled/lib/libmpc.so.3 libmpfr.so.4 = /home/sven/gcc-profiled/lib/libmpfr.so.4 libgmp.so.10 = /home/sven/gcc-profiled/lib/libgmp.so.10 lto cc1: libmpc.so.3 = /home/sven/gcc-lto/lib/libmpc.so.3 libmpfr.so.4 = /home/sven/gcc-lto/lib/libmpfr.so.4 libgmp.so.10 = /home/sven/gcc-lto/lib/libgmp.so.10 lto-plugin cc1: libmpc.so.3 = /home/sven/gcc-lto-plugin/lib/libmpc.so.3 libmpfr.so.4 = /home/sven/gcc-lto-plugin/lib/libmpfr.so.4 libgmp.so.10 = /home/sven/gcc-lto-plugin/lib/libgmp.so.10 libstdc++.so.6 = /home/sven/gcc-lto-plugin/lib64/libstdc++.so.6 libgcc_s.so.1 = /home/sven/gcc-lto-plugin/lib64/libgcc_s.so.1 I will try doing the same but with statically linked compilers.
[Bug fortran/62131] [4.9/5 Regression] OpenMP: Subobject of an allocatable array not allowed in OMP ATOMIC
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62131 --- Comment #3 from Jakub Jelinek jakub at gcc dot gnu.org --- Author: jakub Date: Fri Aug 15 10:23:13 2014 New Revision: 214010 URL: https://gcc.gnu.org/viewcvs?rev=214010root=gccview=rev Log: PR fortran/62131 * openmp.c (resolve_omp_atomic): Only complain if code-expr1's attr is allocatable, rather than whenever var-attr.allocatable. * gfortran.dg/gomp/pr62131.f90: New test. Added: trunk/gcc/testsuite/gfortran.dg/gomp/pr62131.f90 Modified: trunk/gcc/fortran/ChangeLog trunk/gcc/fortran/openmp.c trunk/gcc/testsuite/ChangeLog
[Bug fortran/62131] [4.9/5 Regression] OpenMP: Subobject of an allocatable array not allowed in OMP ATOMIC
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62131 --- Comment #4 from Jakub Jelinek jakub at gcc dot gnu.org --- Author: jakub Date: Fri Aug 15 10:24:08 2014 New Revision: 214011 URL: https://gcc.gnu.org/viewcvs?rev=214011root=gccview=rev Log: PR fortran/62131 * openmp.c (resolve_omp_atomic): Only complain if code-expr1's attr is allocatable, rather than whenever var-attr.allocatable. * gfortran.dg/gomp/pr62131.f90: New test. Added: branches/gcc-4_9-branch/gcc/testsuite/gfortran.dg/gomp/pr62131.f90 Modified: branches/gcc-4_9-branch/gcc/fortran/ChangeLog branches/gcc-4_9-branch/gcc/fortran/openmp.c branches/gcc-4_9-branch/gcc/testsuite/ChangeLog
[Bug bootstrap/62077] --with-build-config=bootstrap-lto fails
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62077 --- Comment #41 from rguenther at suse dot de rguenther at suse dot de --- On Fri, 15 Aug 2014, sven.c.dack at virginmedia dot com wrote: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62077 --- Comment #40 from Sven C. Dack sven.c.dack at virginmedia dot com --- I ran benchmarks and got some unusual results. Or perhaps it is a regression? I have created 4 versions of gcc and used these to timed the time it takes to compile a linux kernel. The configuration of the 4 gcc's are: CFLAGS='-pipe -O2 -march=native -fomit-frame-pointer -fno-builtin-memcmp' default: configure ... make bootstrap profiled: configure ... make profiledbootstrap lto: configure ... --with-build-config=bootstrap-lto make bootstrap lto-plugin: configure ... --with-build-config=bootstrap-lto --with-boot-ldflags=-fuse-linker-plugin make bootstrap The results are the averages (and deviations) of 5 runs with each compiler: avg stdev % default:282.86s0.56s, 0.20%100.00% (base) profiled: 255.76s0.72s, 0.28%+10.60% lto:282.80s0.16s, 0.06% +0.02% lto-plugin: 285.41s0.49s, 0.17% -0.89% The file sizes of the cc1's are: default:84920k profiled: 90176k lto:71204k lto-plugin: 60024k So boot strapping with LTO does not make gcc faster, but only smaller and also takes more time. It is almost as if I had used -Os (and not -O2). Most interesting is bootstrap-lto and make profiledbootstrap. With the linker plugin enabled does it actually link libgcc_s.so and libstdc++.so dynamically to it, while for the other three it did not: That looks odd. Btw, -fuse-linker-plugin should be the default if you have recent enough binutils. Richard
[Bug c++/62153] warn for bool expression compared with integer different from 0/1
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62153 Marek Polacek mpolacek at gcc dot gnu.org changed: What|Removed |Added Status|UNCONFIRMED |ASSIGNED Last reconfirmed||2014-08-15 CC||mpolacek at gcc dot gnu.org Assignee|unassigned at gcc dot gnu.org |mpolacek at gcc dot gnu.org Target Milestone|--- |5.0 Ever confirmed|0 |1 --- Comment #2 from Marek Polacek mpolacek at gcc dot gnu.org --- Sounds good. I'll look at it, so mine for now. But the -Wtautological-constant-out-of-range-compare name is too long - can't we name it just e.g. -Wbool-compare?
[Bug lto/62032] FAIL: vsnprintf-chk.c execution, -O2 -flto -fno-use-linker-plugin -flto-partition=none
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62032 amker at gcc dot gnu.org changed: What|Removed |Added Known to work|4.9.1 | Known to fail|4.10.0 | --- Comment #7 from amker at gcc dot gnu.org --- Should be fixed now.
[Bug bootstrap/62077] --with-build-config=bootstrap-lto fails
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62077 --- Comment #42 from Markus Trippelsdorf trippels at gcc dot gnu.org --- (In reply to Sven C. Dack from comment #40) The results are the averages (and deviations) of 5 runs with each compiler: avg stdev % default:282.86s0.56s, 0.20%100.00% (base) profiled: 255.76s0.72s, 0.28%+10.60% lto:282.80s0.16s, 0.06% +0.02% lto-plugin: 285.41s0.49s, 0.17% -0.89% Can you also try profiled+lto? This should in theory get you the fastes compiler.
[Bug c++/62153] warn for bool expression compared with integer different from 0/1
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62153 --- Comment #3 from Manuel López-Ibáñez manu at gcc dot gnu.org --- (In reply to Marek Polacek from comment #2) Sounds good. I'll look at it, so mine for now. But the -Wtautological-constant-out-of-range-compare name is too long - can't we name it just e.g. -Wbool-compare? I agree it is too long. Wbool-compare sounds good to me. If you can implement it for both C and C++ and put the testcases in testsuite/c-c++-common/, that would be great.
[Bug c++/62153] warn for bool expression compared with integer different from 0/1
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62153 --- Comment #4 from Marek Polacek mpolacek at gcc dot gnu.org --- Sure, both FEs should have it.
[Bug bootstrap/62077] --with-build-config=bootstrap-lto fails
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62077 --- Comment #43 from Sven C. Dack sven.c.dack at virginmedia dot com --- (In reply to Markus Trippelsdorf from comment #42) (In reply to Sven C. Dack from comment #40) The results are the averages (and deviations) of 5 runs with each compiler: avg stdev % default:282.86s0.56s, 0.20%100.00% (base) profiled: 255.76s0.72s, 0.28%+10.60% lto:282.80s0.16s, 0.06% +0.02% lto-plugin: 285.41s0.49s, 0.17% -0.89% Can you also try profiled+lto? This should in theory get you the fastes compiler. I am already on it, but it will take a while. I had assumed this would not work yet. I also read that with only LTO one would get a faster compiler. Why is this not the case here? The binutils I am using are: $ ld --version GNU ld (GNU Binutils) 2.24.51.20140703 Copyright (C) 2014 Free Software Foundation, Inc. This program is free software; you may redistribute it under the terms of the GNU General Public License version 3 or (at your option) a later version. This program has absolutely no warranty.
[Bug tree-optimization/62156] New: memcmp doesn't see through memcpy at compile-time
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62156
Bug ID: 62156
Summary: memcmp doesn't see through memcpy at compile-time
Product: gcc
Version: 5.0
Status: UNCONFIRMED
Keywords: missed-optimization
Severity: enhancement
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: glisse at gcc dot gnu.org
int f(){
const char*a=abcdefghijkl;
const char*b=acbdefghijkl;
char*c=(char*)__builtin_malloc(42);
__builtin_memcpy(c,b,13);
return __builtin_memcmp(a,c,5);
}
We have no problem computing strlen(c) or memcmp(a,b,5) at compile-time, but we
don't manage to fold this. This type of code is what we get with std::string
when we inline everything.
[Bug bootstrap/62077] --with-build-config=bootstrap-lto fails
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62077 --- Comment #44 from Markus Trippelsdorf trippels at gcc dot gnu.org --- (In reply to Sven C. Dack from comment #43) (In reply to Markus Trippelsdorf from comment #42) (In reply to Sven C. Dack from comment #40) The results are the averages (and deviations) of 5 runs with each compiler: avg stdev % default:282.86s0.56s, 0.20%100.00% (base) profiled: 255.76s0.72s, 0.28%+10.60% lto:282.80s0.16s, 0.06% +0.02% lto-plugin: 285.41s0.49s, 0.17% -0.89% Can you also try profiled+lto? This should in theory get you the fastes compiler. I am already on it, but it will take a while. I had assumed this would not work yet. I also read that with only LTO one would get a faster compiler. Not in my experience. As you've found out LTO is good for reducing binary sizes, but it really needs PGO to make sensible decisions. BTW if you have TCMalloc installed on your machine, appending POSTSTAGE1_LDFLAGS += -l/usr/lib/libtcmalloc.so.4 to config/bootstrap-lto.mk may give you an additional 8-10% speed boost (at least for big C++ projects, I haven't measured kernel build times).
[Bug middle-end/62078] [5 Regression] ICE: verify_flow_info failed: missing REG_EH_REGION note at the end of bb 2 with -fdelete-dead-exceptions
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62078 Eric Botcazou ebotcazou at gcc dot gnu.org changed: What|Removed |Added Status|NEW |UNCONFIRMED Ever confirmed|1 |0 --- Comment #3 from Eric Botcazou ebotcazou at gcc dot gnu.org --- Started with r212424. r212424 reverted a bogus change that had disabled -fdelete-dead-exceptions.
[Bug middle-end/62078] [5 Regression] ICE: verify_flow_info failed: missing REG_EH_REGION note at the end of bb 2 with -fdelete-dead-exceptions
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62078 Eric Botcazou ebotcazou at gcc dot gnu.org changed: What|Removed |Added Status|UNCONFIRMED |NEW Ever confirmed|0 |1
[Bug fortran/62142] [4.9/5 Regression] internal compiler error: Segmentation fault (X = X - L*floor(X/L))
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62142 Jakub Jelinek jakub at gcc dot gnu.org changed: What|Removed |Added CC||jakub at gcc dot gnu.org --- Comment #6 from Jakub Jelinek jakub at gcc dot gnu.org --- Indeed, this regressed with r202070.
[Bug target/61878] Missing intrinsic functions in avx512intrin.h
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61878 --- Comment #2 from tocarip at gcc dot gnu.org --- Author: tocarip Date: Fri Aug 15 12:47:41 2014 New Revision: 214019 URL: https://gcc.gnu.org/viewcvs?rev=214019root=gccview=rev Log: gcc/ PR target/61878 * config/i386/avx512fintrin.h (_mm512_mask_cmpge_epi32_mask): New. (_mm512_mask_cmpge_epu32_mask): Ditto. (_mm512_cmpge_epu32_mask): Ditto. (_mm512_mask_cmpge_epi64_mask): Ditto. (_mm512_cmpge_epi64_mask): Ditto. (_mm512_mask_cmpge_epu64_mask): Ditto. (_mm512_cmpge_epu64_mask): Ditto. (_mm512_mask_cmple_epi32_mask): Ditto. (_mm512_cmple_epi32_mask): Ditto. (_mm512_mask_cmple_epu32_mask): Ditto. (_mm512_cmple_epu32_mask): Ditto. (_mm512_mask_cmple_epi64_mask): Ditto. (_mm512_cmple_epi64_mask): Ditto. (_mm512_mask_cmple_epu64_mask): Ditto. (_mm512_cmple_epu64_mask): Ditto. (_mm512_mask_cmplt_epi32_mask): Ditto. (_mm512_cmplt_epi32_mask): Ditto. (_mm512_mask_cmplt_epu32_mask): Ditto. (_mm512_cmplt_epu32_mask): Ditto. (_mm512_mask_cmplt_epi64_mask): Ditto. (_mm512_cmplt_epi64_mask): Ditto. (_mm512_mask_cmplt_epu64_mask): Ditto. (_mm512_cmplt_epu64_mask): Ditto. (_mm512_mask_cmpneq_epi32_mask): Ditto. (_mm512_mask_cmpneq_epu32_mask): Ditto. (_mm512_cmpneq_epu32_mask): Ditto. (_mm512_mask_cmpneq_epi64_mask): Ditto. (_mm512_cmpneq_epi64_mask): Ditto. (_mm512_mask_cmpneq_epu64_mask): Ditto. (_mm512_cmpneq_epu64_mask): Ditto. (_mm512_castpd_ps): Ditto. (_mm512_castpd_si512): Ditto. (_mm512_castps_pd): Ditto. (_mm512_castps_si512): Ditto. (_mm512_castsi512_ps): Ditto. (_mm512_castsi512_pd): Ditto. (_mm512_castpd512_pd128): Ditto. (_mm512_castps512_ps128): Ditto. (_mm512_castsi512_si128): Ditto. (_mm512_castpd512_pd256): Ditto. (_mm512_castps512_ps256): Ditto. (_mm512_castsi512_si256): Ditto. (_mm512_castpd128_pd512): Ditto. (_mm512_castps128_ps512): Ditto. (_mm512_castsi128_si512): Ditto. (_mm512_castpd256_pd512): Ditto. (_mm512_castps256_ps512): Ditto. (_mm512_castsi256_si512): Ditto. (_mm512_cmpeq_epu32_mask): Ditto. (_mm512_mask_cmpeq_epu32_mask): Ditto. (_mm512_mask_cmpeq_epu64_mask): Ditto. (_mm512_cmpeq_epu64_mask): Ditto. (_mm512_cmpgt_epu32_mask): Ditto. (_mm512_mask_cmpgt_epu32_mask): Ditto. (_mm512_mask_cmpgt_epu64_mask): Ditto. (_mm512_cmpgt_epu64_mask): Ditto. * config/i386/i386-builtin-types.def: Add V16SF_FTYPE_V8SF, V16SI_FTYPE_V8SI, V16SI_FTYPE_V4SI, V8DF_FTYPE_V2DF. * config/i386/i386.c (enum ix86_builtins): Add IX86_BUILTIN_SI512_SI256, IX86_BUILTIN_PD512_PD256, IX86_BUILTIN_PS512_PS256, IX86_BUILTIN_SI512_SI, IX86_BUILTIN_PD512_PD, IX86_BUILTIN_PS512_PS. (bdesc_args): Add __builtin_ia32_si512_256si, __builtin_ia32_ps512_256ps, __builtin_ia32_pd512_256pd, __builtin_ia32_si512_si, __builtin_ia32_ps512_ps, __builtin_ia32_pd512_pd. (ix86_expand_args_builtin): Handle new FTYPEs. * config/i386/sse.md (castmode): Add 512-bit modes. (AVX512MODE2P): New. (avx512f_castmodeavxsizesuffix_castmode): New. (avx512f_castmodeavxsizesuffix_256castmode): Ditto. gcc/testsuite/ PR target/61878 * gcc.target/i386/avx512f-typecast-1.c: New test. * gcc.target/i386/avx512f-vpcmpequd-1.c: Ditto. * gcc.target/i386/avx512f-vpcmpequd-2.c: Ditto. * gcc.target/i386/avx512f-vpcmpequq-1.c: Ditto. * gcc.target/i386/avx512f-vpcmpequq-2.c: Ditto. * gcc.target/i386/avx512f-vpcmpged-1.c: Add new intrinsic. * gcc.target/i386/avx512f-vpcmpged-2.c: Ditto. * gcc.target/i386/avx512f-vpcmpgeq-1.c: Ditto. * gcc.target/i386/avx512f-vpcmpgeq-2.c: Ditto. * gcc.target/i386/avx512f-vpcmpgeud-1.c: Ditto. * gcc.target/i386/avx512f-vpcmpgeud-2.c: Ditto. * gcc.target/i386/avx512f-vpcmpgeuq-1.c: Ditto. * gcc.target/i386/avx512f-vpcmpgeuq-2.c: Ditto. * gcc.target/i386/avx512f-vpcmpgtud-1.c: New test. * gcc.target/i386/avx512f-vpcmpgtud-2.c: Ditto. * gcc.target/i386/avx512f-vpcmpgtuq-1.c: Ditto. * gcc.target/i386/avx512f-vpcmpgtuq-2.c: Ditto. * gcc.target/i386/avx512f-vpcmpled-1.c: Ditto. * gcc.target/i386/avx512f-vpcmpled-2.c: Ditto. * gcc.target/i386/avx512f-vpcmpleq-1.c: Ditto. * gcc.target/i386/avx512f-vpcmpleq-2.c: Ditto. * gcc.target/i386/avx512f-vpcmpleud-1.c: Ditto. * gcc.target/i386/avx512f-vpcmpleud-2.c: Ditto. * gcc.target/i386/avx512f-vpcmpleuq-1.c: Ditto. * gcc.target/i386/avx512f-vpcmpleuq-2.c: Ditto. * gcc.target/i386/avx512f-vpcmpltd-1.c: Ditto. * gcc.target/i386/avx512f-vpcmpltd-2.c: Ditto. * gcc.target/i386/avx512f-vpcmpltq-1.c: Ditto. * gcc.target/i386/avx512f-vpcmpltq-2.c: Ditto. * gcc.target/i386/avx512f-vpcmpltud-1.c: Ditto. * gcc.target/i386/avx512f-vpcmpltud-2.c: Ditto. * gcc.target/i386/avx512f-vpcmpltuq-1.c: Ditto. *
[Bug c/44077] -Wtype-limits fails to warn for _Bool comparisons
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=44077 Manuel López-Ibáñez manu at gcc dot gnu.org changed: What|Removed |Added Status|NEW |RESOLVED CC||manu at gcc dot gnu.org Resolution|--- |DUPLICATE --- Comment #3 from Manuel López-Ibáñez manu at gcc dot gnu.org --- Duplicate. We should warn for any comparison of boolean with something different than 0/1. *** This bug has been marked as a duplicate of bug 62153 ***
[Bug c++/62153] warn for bool expression compared with integer different from 0/1
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62153 Manuel López-Ibáñez manu at gcc dot gnu.org changed: What|Removed |Added CC||sirl at gcc dot gnu.org --- Comment #5 from Manuel López-Ibáñez manu at gcc dot gnu.org --- *** Bug 44077 has been marked as a duplicate of this bug. ***
[Bug c++/62072] [4.9/5 regression] No SFINAE performed for function type
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62072 Jakub Jelinek jakub at gcc dot gnu.org changed: What|Removed |Added CC||jakub at gcc dot gnu.org, ||paolo at gcc dot gnu.org --- Comment #1 from Jakub Jelinek jakub at gcc dot gnu.org --- This started to be rejected with r212410.
[Bug c++/62072] [5 regression] No SFINAE performed for function type
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62072 Jakub Jelinek jakub at gcc dot gnu.org changed: What|Removed |Added Target Milestone|4.9.2 |5.0 Summary|[4.9/5 regression] No |[5 regression] No SFINAE |SFINAE performed for|performed for function type |function type |
[Bug c++/59002] [meta-bug] Access checking in templates
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=59002 Paolo Carlini paolo.carlini at oracle dot com changed: What|Removed |Added Status|UNCONFIRMED |NEW Last reconfirmed||2014-08-15 Depends on||22149 Ever confirmed|0 |1
[Bug middle-end/62140] [GCC-4.10.0][ASAN] ICE: : in build2_stat, at tree.c:4265
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62140 Yury Gribov y.gribov at samsung dot com changed: What|Removed |Added CC||y.gribov at samsung dot com --- Comment #2 from Yury Gribov y.gribov at samsung dot com --- Created attachment 7 -- https://gcc.gnu.org/bugzilla/attachment.cgi?id=7action=edit Short repro Same on x86_64-unknown-linux-gnu. Memcmp is called with int-typed length parameter which upsets build of POINTER_PLUS_EXPR which expects 64-bit unsigned type. I'm attaching a short repro.
[Bug target/62123] [4.9 Regression] internal compiler error: output_operand: invalid expression as operand with option -std=c++11 and using std::complex
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62123 Jakub Jelinek jakub at gcc dot gnu.org changed: What|Removed |Added CC||jakub at gcc dot gnu.org, ||jason at gcc dot gnu.org --- Comment #2 from Jakub Jelinek jakub at gcc dot gnu.org --- On the trunk, started to ICE with r212439 (so likely on 4.9 branch with r212440). On the trunk the ICE got fixed with r213688, but that change has not been applied to the 4.9 branch yet apparently.
[Bug c++/61994] [4.9 Regression] constexpr vector array ICE
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61994 Jakub Jelinek jakub at gcc dot gnu.org changed: What|Removed |Added CC||paul.freitag@bruker-biospin ||.de --- Comment #5 from Jakub Jelinek jakub at gcc dot gnu.org --- *** Bug 62123 has been marked as a duplicate of this bug. ***
[Bug target/62123] [4.9 Regression] internal compiler error: output_operand: invalid expression as operand with option -std=c++11 and using std::complex
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62123 Jakub Jelinek jakub at gcc dot gnu.org changed: What|Removed |Added Status|NEW |RESOLVED Resolution|--- |DUPLICATE --- Comment #3 from Jakub Jelinek jakub at gcc dot gnu.org --- Aha, but that has been applied to 4.9 branch too, seems the only problem is that I had my 4.9 tree a few days old. Seems to work fine with current 4.9 branch. *** This bug has been marked as a duplicate of bug 61994 ***
[Bug c++/62129] [4.9/5 Regression] internal compiler error: in output_constant, at varasm.c:4755
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62129 Jakub Jelinek jakub at gcc dot gnu.org changed: What|Removed |Added CC||jakub at gcc dot gnu.org --- Comment #2 from Jakub Jelinek jakub at gcc dot gnu.org --- Yeah, and this one wasn't fixed with r213688.
[Bug c++/62129] [4.9/5 Regression] internal compiler error: in output_constant, at varasm.c:4755
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62129 Jakub Jelinek jakub at gcc dot gnu.org changed: What|Removed |Added Priority|P3 |P1
[Bug sanitizer/62157] New: make distclean error when libsanitizer is configured not to build 'tsan'
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62157 Bug ID: 62157 Summary: make distclean error when libsanitizer is configured not to build 'tsan' Product: gcc Version: 4.9.1 Status: UNCONFIRMED Severity: normal Priority: P3 Component: sanitizer Assignee: unassigned at gcc dot gnu.org Reporter: Explorer09 at gmail dot com CC: dodji at gcc dot gnu.org, dvyukov at gcc dot gnu.org, jakub at gcc dot gnu.org, kcc at gcc dot gnu.org Tested on GCC 4.9.1. (Host OS is Ubuntu 12.04.5 32-bit) To reproduce: 1. Have a 32-bit operating system (or something that makes ac_cv_sizeof_void_p!=8 ) 2. mkdir libsanitizer-build ; cd libsanitizer-build 3. ../gcc-4.9.1/libsanitizer/configure --disable-multilib (I know libsanitizer isn't meant to be configured this way, but I do this just to demonstrate the error.) Now notice that tsan/Makefile won't be generated. 4. make distclean Actual result is something like this: -- Making distclean in tsan /bin/bash: line 26: cd: tsan: No such file or directory make[2]: *** [distclean-recursive] Error 1 make[2]: Leaving directory `/home/explorer/toolchain/gcc-build/i486-pc-linux-gnu/libsanitizer' make[1]: *** [distclean-target-libsanitizer] Error 1 make[1]: Leaving directory `/home/explorer/toolchain/gcc-build' make: *** [do-distclean] Error 2 -- I have to use make -k distclean to workaround problem like this when building a cross-GCC.
[Bug c/62158] New: FAIL: scan-tree-dump-not optimized gimple_assign
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62158 Bug ID: 62158 Summary: FAIL: scan-tree-dump-not optimized gimple_assign Product: gcc Version: unknown Status: UNCONFIRMED Severity: normal Priority: P3 Component: c Assignee: unassigned at gcc dot gnu.org Reporter: sabrinadfs at gmail dot com GCC-4.10.0 (trunk) x86_64-apple-darwin11.4.2 Running the following test: make -s -C gcc check-gcc RUNTESTFLAGS=dg.exp=pr55027.c --target_board=unix/-O0 GCC produced this failure: FAIL: gcc.dg/pr55027.c scan-tree-dump-not optimized gimple_assign === gcc Summary === # of expected passes1 # of unexpected failures1 Executing on host: /Users/sabrinasouto/Downloads/gcc_trunk/objdir/gcc/xgcc -v (timeout = 300) spawn /Users/sabrinasouto/Downloads/gcc_trunk/objdir/gcc/xgcc -v Using built-in specs. COLLECT_GCC=/Users/sabrinasouto/Downloads/gcc_trunk/objdir/gcc/xgcc Target: x86_64-apple-darwin11.4.2 Configured with: ./../trunk/configure --prefix=/Users/sabrinasouto/trunk --enable-languages=c,c++ Thread model: posix gcc version 4.10.0 20140806 (experimental) (GCC) I also ran this test for other optimization levels (-O1, -O2, -O3) and GCC produced the same failure. Could someone please confirm if this is a bug? Thanks, Sabrina Souto.
[Bug tree-optimization/57732] [4.8/4.9/5 Regression] ICE (segfault in libisl) building drizzle on 32bit targets (at least arm-linux and i586-linux)
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=57732 Matthias Klose doko at gcc dot gnu.org changed: What|Removed |Added Status|WAITING |RESOLVED Resolution|--- |WORKSFORME --- Comment #5 from Matthias Klose doko at gcc dot gnu.org --- can't see this anymore with the current 4.8 branch (and 4.9)
[Bug tree-optimization/59859] [meta-bug] GRAPHITE issues
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=59859 Bug 59859 depends on bug 57732, which changed state. Bug 57732 Summary: [4.8/4.9/5 Regression] ICE (segfault in libisl) building drizzle on 32bit targets (at least arm-linux and i586-linux) https://gcc.gnu.org/bugzilla/show_bug.cgi?id=57732 What|Removed |Added Status|WAITING |RESOLVED Resolution|--- |WORKSFORME
[Bug libstdc++/62154] std::throw_with_nested should not require a polymorphic type
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62154 Vitali vlovich at gmail dot com changed: What|Removed |Added CC||vlovich at gmail dot com --- Comment #2 from Vitali vlovich at gmail dot com --- Note that rethrow_if_nested suffers from the same problem.
[Bug fortran/44054] Handle -Werror, -Werror=, -fdiagnostics-show-option, !GCC$ diagnostic (pragmas) and color
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=44054 --- Comment #13 from Manuel López-Ibáñez manu at gcc dot gnu.org --- Author: manu Date: Fri Aug 15 15:10:15 2014 New Revision: 214024 URL: https://gcc.gnu.org/viewcvs?rev=214024root=gccview=rev Log: 2014-08-15 Manuel López-Ibáñez m...@gcc.gnu.org PR fortran/44054 gcc/ * diagnostic.c (build_message_string): Make it extern. * diagnostic.h (build_message_string): Make it extern. c-family/ * c-format.c: Handle Fortran flags. fortran/ * gfortran.h: Define GCC_DIAG_STYLE. (gfc_diagnostics_init,gfc_warning_cmdline): Declare. * trans-array.c: Include gfortran.h before diagnostic-core.h. * trans-expr.c: Likewise. * trans-openmp.c: Likewise. * trans-const.c: Likewise. * trans.c: Likewise. * trans-types.c: Likewise. * f95-lang.c: Likewise. * trans-decl.c: Likewise. * trans-io.c: Likewise. * trans-intrinsic.c: Likewise. * error.c: Include diagnostic.h and diagnostic-color.h. (gfc_diagnostic_build_prefix): New. (gfc_diagnostic_starter): New. (gfc_diagnostic_finalizer): New. (gfc_warning_cmdline): New. (gfc_diagnostics_init): New. * gfc-diagnostic.def: New. * options.c (gfc_init_options): Call gfc_diagnostics_init. (gfc_post_options): Use gfc_warning_cmdline. Added: trunk/gcc/fortran/gfc-diagnostic.def Modified: trunk/gcc/ChangeLog trunk/gcc/c-family/ChangeLog trunk/gcc/c-family/c-format.c trunk/gcc/diagnostic.c trunk/gcc/diagnostic.h trunk/gcc/fortran/ChangeLog trunk/gcc/fortran/error.c trunk/gcc/fortran/f95-lang.c trunk/gcc/fortran/gfortran.h trunk/gcc/fortran/options.c trunk/gcc/fortran/trans-array.c trunk/gcc/fortran/trans-const.c trunk/gcc/fortran/trans-decl.c trunk/gcc/fortran/trans-expr.c trunk/gcc/fortran/trans-intrinsic.c trunk/gcc/fortran/trans-io.c trunk/gcc/fortran/trans-openmp.c trunk/gcc/fortran/trans-types.c trunk/gcc/fortran/trans.c
[Bug libstdc++/62154] std::throw_with_nested should not require a polymorphic type
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62154 --- Comment #3 from Jonathan Wakely redi at gcc dot gnu.org --- Author: redi Date: Fri Aug 15 15:22:44 2014 New Revision: 214025 URL: https://gcc.gnu.org/viewcvs?rev=214025root=gccview=rev Log: PR libstdc++/62154 * libsupc++/nested_exception.h (throw_with_nested, rethrow_if_nested): Rewrite to conform to C++11 requirements. * testsuite/18_support/nested_exception/62154.cc: New. Added: trunk/libstdc++-v3/testsuite/18_support/nested_exception/62154.cc Modified: trunk/libstdc++-v3/ChangeLog trunk/libstdc++-v3/libsupc++/nested_exception.h
[Bug libstdc++/62159] New: Missing headers for freestanding implementation
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62159 Bug ID: 62159 Summary: Missing headers for freestanding implementation Product: gcc Version: 5.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: libstdc++ Assignee: unassigned at gcc dot gnu.org Reporter: redi at gcc dot gnu.org Table 16 lists the headers required for a freestanding implementation, but we are missing ciso646, cfloat, climits, cstdint, cstdalign, cstdbool, type_traits and atomic
[Bug libstdc++/62154] std::throw_with_nested should not require a polymorphic type
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62154 Jonathan Wakely redi at gcc dot gnu.org changed: What|Removed |Added Status|NEW |RESOLVED Resolution|--- |FIXED Target Milestone|--- |5.0 --- Comment #4 from Jonathan Wakely redi at gcc dot gnu.org --- (In reply to Vitali from comment #2) Note that rethrow_if_nested suffers from the same problem. Both are fixed now.
[Bug c++/62072] [5 regression] No SFINAE performed for function type
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62072 Paolo Carlini paolo.carlini at oracle dot com changed: What|Removed |Added Status|UNCONFIRMED |ASSIGNED Last reconfirmed||2014-08-15 Assignee|unassigned at gcc dot gnu.org |paolo.carlini at oracle dot com Ever confirmed|0 |1 --- Comment #2 from Paolo Carlini paolo.carlini at oracle dot com --- Unfortunately, it seems that more work is necessary in order to implement correctly Core/1584. For the time being I'm reverting r212410, adding the testcase here, closing this bug and reopening c++/57466.
[Bug rtl-optimization/62151] [5 Regression] wrong code at -O2 and -O3 on x86_64-linux-gnu
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62151 --- Comment #6 from amker at gcc dot gnu.org --- (In reply to Richard Biener from comment #5) Note that probably also made a latent issue pop up. Indeed. After preliminary investigation, I think this case reveals two latent issues. The first one is a missed optimization opportunity on GIMPLE, while the second one is a wrong code issue in RTL combine. I will firstly look into the combine issue and send a report later. Thanks, bin
[Bug libstdc++/62159] Missing headers for freestanding implementation
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62159 Jonathan Wakely redi at gcc dot gnu.org changed: What|Removed |Added Status|UNCONFIRMED |ASSIGNED Last reconfirmed||2014-08-15 Assignee|unassigned at gcc dot gnu.org |redi at gcc dot gnu.org Ever confirmed|0 |1 --- Comment #1 from Jonathan Wakely redi at gcc dot gnu.org --- Created attachment 8 -- https://gcc.gnu.org/bugzilla/attachment.cgi?id=8action=edit proposed patch
[Bug c++/57466] [DR 1584] Argument deduction fails for 'const T*' when T is function type
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=57466 --- Comment #6 from paolo at gcc dot gnu.org paolo at gcc dot gnu.org --- Author: paolo Date: Fri Aug 15 16:23:47 2014 New Revision: 214027 URL: https://gcc.gnu.org/viewcvs?rev=214027root=gccview=rev Log: /cp 2014-08-15 Paolo Carlini paolo.carl...@oracle.com PR c++/62072 Revert: 2014-07-09 Paolo Carlini paolo.carl...@oracle.com DR 1584 PR c++/57466 * pt.c (check_cv_quals_for_unify): Implement resolution, disregard cv-qualifiers of function types. /testsuite 2014-08-15 Paolo Carlini paolo.carl...@oracle.com PR c++/62072 Revert: 2014-07-09 Paolo Carlini paolo.carl...@oracle.com DR 1584 PR c++/57466 * g++.dg/template/pr57466.C: New. * g++.dg/cpp0x/pr57466.C: Likewise. * g++.dg/template/unify6.C: Update. * g++.dg/cpp0x/sfinae52.C: New. Added: trunk/gcc/testsuite/g++.dg/cpp0x/sfinae52.C Removed: trunk/gcc/testsuite/g++.dg/cpp0x/pr57466.C trunk/gcc/testsuite/g++.dg/template/pr57466.C Modified: trunk/gcc/cp/ChangeLog trunk/gcc/cp/pt.c trunk/gcc/testsuite/ChangeLog trunk/gcc/testsuite/g++.dg/template/unify6.C
[Bug c++/62072] [5 regression] No SFINAE performed for function type
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62072 --- Comment #3 from paolo at gcc dot gnu.org paolo at gcc dot gnu.org --- Author: paolo Date: Fri Aug 15 16:23:47 2014 New Revision: 214027 URL: https://gcc.gnu.org/viewcvs?rev=214027root=gccview=rev Log: /cp 2014-08-15 Paolo Carlini paolo.carl...@oracle.com PR c++/62072 Revert: 2014-07-09 Paolo Carlini paolo.carl...@oracle.com DR 1584 PR c++/57466 * pt.c (check_cv_quals_for_unify): Implement resolution, disregard cv-qualifiers of function types. /testsuite 2014-08-15 Paolo Carlini paolo.carl...@oracle.com PR c++/62072 Revert: 2014-07-09 Paolo Carlini paolo.carl...@oracle.com DR 1584 PR c++/57466 * g++.dg/template/pr57466.C: New. * g++.dg/cpp0x/pr57466.C: Likewise. * g++.dg/template/unify6.C: Update. * g++.dg/cpp0x/sfinae52.C: New. Added: trunk/gcc/testsuite/g++.dg/cpp0x/sfinae52.C Removed: trunk/gcc/testsuite/g++.dg/cpp0x/pr57466.C trunk/gcc/testsuite/g++.dg/template/pr57466.C Modified: trunk/gcc/cp/ChangeLog trunk/gcc/cp/pt.c trunk/gcc/testsuite/ChangeLog trunk/gcc/testsuite/g++.dg/template/unify6.C
[Bug c++/62072] [5 regression] No SFINAE performed for function type
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62072 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 --- Comment #4 from Paolo Carlini paolo.carlini at oracle dot com --- Done.
[Bug libstdc++/57465] Failed postcondition for std::function constructed with null function pointer
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=57465 Bug 57465 depends on bug 57466, which changed state. Bug 57466 Summary: [DR 1584] Argument deduction fails for 'const T*' when T is function type https://gcc.gnu.org/bugzilla/show_bug.cgi?id=57466 What|Removed |Added Status|RESOLVED|REOPENED Resolution|FIXED |---
[Bug c++/57466] [DR 1584] Argument deduction fails for 'const T*' when T is function type
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=57466 Paolo Carlini paolo.carlini at oracle dot com changed: What|Removed |Added Status|RESOLVED|REOPENED Resolution|FIXED |--- --- Comment #7 from Paolo Carlini paolo.carlini at oracle dot com --- Patch reverted, unfortunately.
[Bug target/56997] Incorrect write to packed field when strict-volatile-bitfields enabled on aarch32
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=56997 --- Comment #17 from Bernd Edlinger bernd.edlinger at hotmail dot de --- (In reply to Andrew Pinski from comment #16) This testcase fails on aarch64 when SLOW_UNALIGNED_ACCESS is true. hmm, yes. there are targets that define SLOW_UNALIGNED_ACCESS=1, but they also define STRICT_ALIGNMENT=1 at the same time. probably this combination is not tested at all. does it pass if you use -mstrict-align ?
[Bug bootstrap/62077] --with-build-config=bootstrap-lto fails
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62077 --- Comment #45 from Jason Merrill jason at gcc dot gnu.org --- Author: jason Date: Fri Aug 15 17:27:58 2014 New Revision: 214030 URL: https://gcc.gnu.org/viewcvs?rev=214030root=gccview=rev Log: PR bootstrap/62077 gcc/ * tree.c (type_hash_canon): Uncomment assert. gcc/cp/ * tree.c (build_min_array_type, set_array_type_canon): Split out... (build_cplus_array_type): ...from here. Only call build_array_type for main variants. Modified: trunk/gcc/ChangeLog trunk/gcc/cp/ChangeLog trunk/gcc/cp/tree.c trunk/gcc/tree.c
[Bug tree-optimization/62071] [4.10 Regression] ICE: in before_dom_children, at tree-ssa-pre.c:4411
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62071 --- Comment #7 from Jason Merrill jason at redhat dot com --- On 08/14/2014 07:13 PM, Jan Hubicka wrote: On 08/14/2014 02:10 PM, Jan Hubicka wrote: I wonder what we should do with both external and comdat here. Jason, can we devirtualize? No, we're setting comdat now to avoid devirtualization, because we can't be confident that we'll be able to refer to the definition where it gets emitted. We had issues where function body was not produced because it is not reachable by the frontend's definition and it would be comdat otherwise. The case of inline function whose out of line body is keyed to another unit seems bit different... It doesn't seem that different to me. In both cases we don't have a local definition to refer to. The constructor is keyed to other compilation unit here, but we are provided with a body that we will never use (modulo the tree-ssa-pre bug that brings the reference into code). Hmm, we might consider overriding DECL_EXTERNAL so that there's a definition available for devirtualization. I can always implement logic to use it only when it is inlined, but that will probably drag in references to other symbols belonging to the class... I'm not too concerned about that; users should expect an inline function to be inlined. Jason
[Bug bootstrap/62077] --with-build-config=bootstrap-lto fails
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62077 --- Comment #46 from Sven C. Dack sven.c.dack at virginmedia dot com --- ... avg stdev % default:282.86s0.56s, 0.20%100.00% (base) profiled: 255.76s0.72s, 0.28%+10.60% lto:282.80s0.16s, 0.06% +0.02% lto-plugin: 285.41s0.49s, 0.17% -0.89% ... Not in my experience. As you've found out LTO is good for reducing binary sizes, but it really needs PGO to make sensible decisions. These are the new results (5 runs). I have dropped lto-plugin and added profiled-lto: avg stdev % default: 282.13s0.71, 0.25%100.00% (base) profiled: 255.29s0.80, 0.31%+10.52% lto: 281.71s0.70, 0.25% +0.15% profiled-lto: 251.38s0.49, 0.19%+12.23% gmp, mpfr and mpc have been compiled without LTO. BTW if you have TCMalloc installed on your machine, appending POSTSTAGE1_LDFLAGS += -l/usr/lib/libtcmalloc.so.4 to config/bootstrap-lto.mk may give you an additional 8-10% speed boost (at least for big C++ projects, I haven't measured kernel build times). This is going off the topic, but I do not mean to disrespect you. I did not use it in the test runs. You may want to look at lockless malloc. It seems to be all round better, because TCMalloc requires a very specific additional library (libunwind-0.99-beta) and has got problems with glibc and locking, too. lockless malloc is free of locking, very small, available as GPLv3 open source and said be be faster than TCMalloc. See here: http://locklessinc.com/benchmarks_allocator.shtml
[Bug bootstrap/62077] --with-build-config=bootstrap-lto fails
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62077 --- Comment #47 from Sven C. Dack sven.c.dack at virginmedia dot com --- default:84920k profiled: 90176k lto:71204k lto-plugin: 60024k The new file sizes of cc1's are: default: 84920k profiled: 90176k lto: 71204k profiled-lto: 98556k
[Bug fortran/62142] [4.9/5 Regression] internal compiler error: Segmentation fault (X = X - L*floor(X/L))
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62142
Thomas Koenig tkoenig at gcc dot gnu.org changed:
What|Removed |Added
Assignee|unassigned at gcc dot gnu.org |tkoenig at gcc dot
gnu.org
--- Comment #7 from Thomas Koenig tkoenig at gcc dot gnu.org ---
A rather obvious fix:
Index: trans-expr.c
===
--- trans-expr.c(Revision 213778)
+++ trans-expr.c(Arbeitskopie)
@@ -7895,7 +7895,7 @@
for (a = expr2-value.function.actual; a != NULL; a = a-next)
{
e1 = a-expr;
- if (e1-rank 0 !is_runtime_conformable (expr1, e1))
+ if (e1 e1-rank 0 !is_runtime_conformable (expr1, e1))
return false;
}
return true;
@@ -7906,7 +7906,7 @@
for (a = expr2-value.function.actual; a != NULL; a = a-next)
{
e1 = a-expr;
- if (e1-rank 0 !is_runtime_conformable (expr1, e1))
+ if (e1 e1-rank 0 !is_runtime_conformable (expr1, e1))
return false;
}
return true;
[Bug fortran/62106] [4.9/5 Regression] Adding a scalar variable to an array constructor gives wrong result
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62106 --- Comment #5 from Thomas Koenig tkoenig at gcc dot gnu.org --- Author: tkoenig Date: Fri Aug 15 20:47:30 2014 New Revision: 214038 URL: https://gcc.gnu.org/viewcvs?rev=214038root=gccview=rev Log: 2014-08-15 Thomas Koenig tkoe...@gcc.gnu.org Backport from trunk PR fortran/62106 * gfortran.h (symbol_attribute): Add fe_temp flag. * frontend-passes.c (is_fe_temp): New function. (create_var): Don't add a temporary for an already created variable or for a constant. (combine_ARRAY_constructor): Remove special handling for constants. 2014-08-15 Thomas Koenig tkoe...@gcc.gnu.org Backport from trunk PR fortran/62106 * gfortran.dg/array_constructor_49.f90: New test. Added: branches/gcc-4_9-branch/gcc/testsuite/gfortran.dg/array_constructor_49.f90 Modified: branches/gcc-4_9-branch/gcc/fortran/ChangeLog branches/gcc-4_9-branch/gcc/fortran/frontend-passes.c branches/gcc-4_9-branch/gcc/fortran/gfortran.h branches/gcc-4_9-branch/gcc/testsuite/ChangeLog
[Bug fortran/62106] [4.9/5 Regression] Adding a scalar variable to an array constructor gives wrong result
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62106 Thomas Koenig tkoenig at gcc dot gnu.org changed: What|Removed |Added Status|ASSIGNED|RESOLVED Resolution|--- |FIXED --- Comment #6 from Thomas Koenig tkoenig at gcc dot gnu.org --- Fixed on all affected branches, closing.
[Bug fortran/62142] [4.9/5 Regression] internal compiler error: Segmentation fault (X = X - L*floor(X/L))
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62142 --- Comment #8 from Thomas Koenig tkoenig at gcc dot gnu.org --- Author: tkoenig Date: Fri Aug 15 21:19:33 2014 New Revision: 214043 URL: https://gcc.gnu.org/viewcvs?rev=214043root=gccview=rev Log: 2014-08-15 Thomas Koenig tkoe...@gcc.gnu.org PR fortran/62142 * trans-expr.c (is_runtime_conformable): Add NULL pointer checks. 2014-08-15 Thomas Koenig tkoe...@gcc.gnu.org PR fortran/62142 * gfortran.dg/realloc_on_assign_24.f90: New test. Added: trunk/gcc/testsuite/gfortran.dg/realloc_on_assign_24.f90 Modified: trunk/gcc/fortran/ChangeLog trunk/gcc/fortran/trans-expr.c trunk/gcc/testsuite/ChangeLog
[Bug tree-optimization/62071] [4.10 Regression] ICE: in before_dom_children, at tree-ssa-pre.c:4411
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62071 --- Comment #8 from Jan Hubicka hubicka at ucw dot cz --- On 08/14/2014 07:13 PM, Jan Hubicka wrote: On 08/14/2014 02:10 PM, Jan Hubicka wrote: I wonder what we should do with both external and comdat here. Jason, can we devirtualize? No, we're setting comdat now to avoid devirtualization, because we can't be confident that we'll be able to refer to the definition where it gets emitted. We had issues where function body was not produced because it is not reachable by the frontend's definition and it would be comdat otherwise. The case of inline function whose out of line body is keyed to another unit seems bit different... It doesn't seem that different to me. In both cases we don't have a local definition to refer to. I think the difference is that in one case we break ABI (by referring to the symbol without providing a comdat body). In the other case we just require user to link with classes he declares in headers. So far I was always able to convince users to do the second. We won't devirtualize when explicit hidden attribute is present on the function body. The constructor is keyed to other compilation unit here, but we are provided with a body that we will never use (modulo the tree-ssa-pre bug that brings the reference into code). Hmm, we might consider overriding DECL_EXTERNAL so that there's a definition available for devirtualization. I can always implement logic to use it only when it is inlined, but that will probably drag in references to other symbols belonging to the class... I'm not too concerned about that; users should expect an inline function to be inlined. I guess I will need to add the necessary infrastructure then - so far we make no difference in between referring symbol and inlining body becuase before inlining we always temporarily produce the direct reference. Honza
[Bug rtl-optimization/62004] dead type-unsafe load replaces type-safe load
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62004 --- Comment #6 from vries at gcc dot gnu.org --- Author: vries Date: Fri Aug 15 21:23:21 2014 New Revision: 214044 URL: https://gcc.gnu.org/viewcvs?rev=214044root=gccview=rev Log: Fix if-conversion pass for dead type-unsafe code 2014-08-15 Tom de Vries t...@codesourcery.com Backport from mainline: 2014-08-14 Tom de Vries t...@codesourcery.com PR rtl-optimization/62004 PR rtl-optimization/62030 * ifcvt.c (rtx_interchangeable_p): New function. (noce_try_move, noce_process_if_block): Use rtx_interchangeable_p. * gcc.dg/pr62004.c: New test. * gcc.dg/pr62030.c: Same. * gcc.target/mips/pr62030-octeon.c: Same. 2014-08-05 Richard Biener rguent...@suse.de * emit-rtl.h (mem_attrs_eq_p): Declare. * emit-rtl.c (mem_attrs_eq_p): Export. Added: branches/gcc-4_9-branch/gcc/testsuite/gcc.dg/pr62004.c branches/gcc-4_9-branch/gcc/testsuite/gcc.dg/pr62030.c branches/gcc-4_9-branch/gcc/testsuite/gcc.target/mips/pr62030-octeon.c Modified: branches/gcc-4_9-branch/gcc/ChangeLog branches/gcc-4_9-branch/gcc/emit-rtl.c branches/gcc-4_9-branch/gcc/emit-rtl.h branches/gcc-4_9-branch/gcc/ifcvt.c branches/gcc-4_9-branch/gcc/testsuite/ChangeLog
[Bug rtl-optimization/62030] wrong code due to ifcvt merging two stores which have different aliasing sets
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62030 --- Comment #9 from vries at gcc dot gnu.org --- Author: vries Date: Fri Aug 15 21:23:21 2014 New Revision: 214044 URL: https://gcc.gnu.org/viewcvs?rev=214044root=gccview=rev Log: Fix if-conversion pass for dead type-unsafe code 2014-08-15 Tom de Vries t...@codesourcery.com Backport from mainline: 2014-08-14 Tom de Vries t...@codesourcery.com PR rtl-optimization/62004 PR rtl-optimization/62030 * ifcvt.c (rtx_interchangeable_p): New function. (noce_try_move, noce_process_if_block): Use rtx_interchangeable_p. * gcc.dg/pr62004.c: New test. * gcc.dg/pr62030.c: Same. * gcc.target/mips/pr62030-octeon.c: Same. 2014-08-05 Richard Biener rguent...@suse.de * emit-rtl.h (mem_attrs_eq_p): Declare. * emit-rtl.c (mem_attrs_eq_p): Export. Added: branches/gcc-4_9-branch/gcc/testsuite/gcc.dg/pr62004.c branches/gcc-4_9-branch/gcc/testsuite/gcc.dg/pr62030.c branches/gcc-4_9-branch/gcc/testsuite/gcc.target/mips/pr62030-octeon.c Modified: branches/gcc-4_9-branch/gcc/ChangeLog branches/gcc-4_9-branch/gcc/emit-rtl.c branches/gcc-4_9-branch/gcc/emit-rtl.h branches/gcc-4_9-branch/gcc/ifcvt.c branches/gcc-4_9-branch/gcc/testsuite/ChangeLog
[Bug c++/61566] [4.9/4.10 Regression] ICE in write_unscoped_name
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61566 --- Comment #9 from Jason Merrill jason at gcc dot gnu.org --- Author: jason Date: Fri Aug 15 21:59:40 2014 New Revision: 214046 URL: https://gcc.gnu.org/viewcvs?rev=214046root=gccview=rev Log: PR c++/61566 * pt.c (instantiate_class_template_1): Ignore lambda on CLASSTYPE_DECL_LIST. (push_template_decl_real): A lambda is not primary. (lookup_template_class_1): Don't look for a lambda partial instantiation. * lambda.c (maybe_add_lambda_conv_op): Distinguish between being currently in a function and the lambda living in a function. * mangle.c (CLASSTYPE_TEMPLATE_ID_P): False for lambda. Modified: trunk/gcc/cp/ChangeLog trunk/gcc/cp/lambda.c trunk/gcc/cp/mangle.c trunk/gcc/cp/pt.c trunk/gcc/testsuite/g++.dg/cpp0x/lambda/lambda-template13.C
[Bug c++/61566] [4.9/4.10 Regression] ICE in write_unscoped_name
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61566 --- Comment #10 from Jason Merrill jason at gcc dot gnu.org --- Author: jason Date: Fri Aug 15 22:27:06 2014 New Revision: 214049 URL: https://gcc.gnu.org/viewcvs?rev=214049root=gccview=rev Log: PR c++/61566 * pt.c (lookup_template_class_1): Revert recent change. * mangle.c (CLASSTYPE_TEMPLATE_ID_P): Revert recent change. Modified: trunk/gcc/cp/ChangeLog trunk/gcc/cp/mangle.c trunk/gcc/cp/pt.c
[Bug c++/62160] New: std::uppercase does not work for std::hex output
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62160
Bug ID: 62160
Summary: std::uppercase does not work for std::hex output
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: jj at chaosbits dot net
Created attachment 9
-- https://gcc.gnu.org/bugzilla/attachment.cgi?id=9action=edit
pre-processed version of test.cc
Using std::uppercase should cause the use of uppercase characters in
hexadecimal integer output, but it does not seem to do so when that integer is
a pointer:
[jj@jj ~]$ g++ --version
g++ (GCC) 4.8.2 20140120 (Red Hat 4.8.2-15)
Copyright (C) 2013 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
[jj@jj ~]$ cat test.cc
#include iostream
int main() {
int* p = reinterpret_castint*(42);
int i = 42;
std::cout std::hex std::uppercase p std::endl;
std::cout std::hex std::uppercase i std::endl;
}
[jj@jj ~]$ g++ -std=c++11 test.cc
[jj@jj ~]$ ./a.out
0x2a
2A
As can be seen above, the output is clearly not uppercase in the pointer case
(although as far as I know; pointers are integers).
This looks like a bug to me, but maybe I'm just doing something exceptionally
stupid...
[Bug c++/62160] std::uppercase does not work for std::hex output
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62160 Jesper Juhl jj at chaosbits dot net changed: What|Removed |Added Version|unknown |4.8.2 Severity|normal |minor
[Bug c++/39159] unhelpful attribute warning on matching declaration after definition
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=39159 Jesper Juhl jj at chaosbits dot net changed: What|Removed |Added CC||jj at chaosbits dot net --- Comment #2 from Jesper Juhl jj at chaosbits dot net --- I've run into this as well with GCC 4.8.2 - it's rather annoying.
[Bug target/61641] [4.9/5 Regression] undefined label in jump_table_data
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61641 --- Comment #9 from John David Anglin danglin at gcc dot gnu.org --- With the patch from comment #8, I find the failure of delay-slot-2.c was introduced in r209897: 2014-03-21 James Greenhalgh james.greenha...@arm.com * calls.c (initialize_argument_information): Always treat PUSH_ARGS_REVERSED as 1, simplify code accordingly. (expand_call): Likewise. (emit_library_call_calue_1): Likewise. * expr.c (PUSH_ARGS_REVERSED): Do not define. (emit_push_insn): Always treat PUSH_ARGS_REVERSED as 1, simplify code accordingly.
[Bug c++/39159] unhelpful attribute warning on matching declaration after definition
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=39159
Manuel López-Ibáñez manu at gcc dot gnu.org changed:
What|Removed |Added
Status|UNCONFIRMED |NEW
Last reconfirmed||2014-08-16
CC||manu at gcc dot gnu.org
Ever confirmed|0 |1
--- Comment #3 from Manuel López-Ibáñez manu at gcc dot gnu.org ---
Confirmed.
Perhaps it is not hard to fix. Just look how it is handled for functions.
Probably it is at the same place as this:
void __attribute__ ((visibility (default))) foo () { }
void __attribute__ ((visibility (hidden))) foo ();
pr39159.C:4:49: warning: ‘void foo()’: visibility attribute ignored because it
conflicts with previous declaration [-Wattributes]
void __attribute__ ((visibility (default))) foo () { }
^
pr39159.C:4:49: note: previous declaration of ‘void foo()’
and see if you can implement the same thing for types, probably at the point
where the type attributes ignored warning is given.
