[Bug middle-end/57370] [4.9 Regression] compiler hangs in reassoc
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57370 --- Comment #7 from Joost VandeVondele Joost.VandeVondele at mat dot ethz.ch --- Since the bug is still 'unconfirmed', I'm wondering if this can not be reproduced, or if I can provide some more information (more than the small testcase in comment #6 and the revision that caused it in comment #2) ?
[Bug c++/57599] result of dynamic_castcv T is just T
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57599
Daniel Krügler daniel.kruegler at googlemail dot com changed:
What|Removed |Added
CC||daniel.kruegler@googlemail.
||com
--- Comment #4 from Daniel Krügler daniel.kruegler at googlemail dot com ---
I created a test case for all type conversion operators:
struct A {};
struct B : public A {};
templateclass, class
struct is_same { static constexpr bool value = false; };
templateclass T
struct is_sameT, T { static constexpr bool value = true; };
templateclass T
T val();
static_assert(is_samedecltype(static_castconst A*(valB*())), const
A*::value, Ouch);
static_assert(is_samedecltype(static_castconst A(valB())), const
A::value, Ouch);
static_assert(is_samedecltype(const_castconst A*(valA*())), const
A*::value, Ouch);
static_assert(is_samedecltype(const_castconst A(valA())), const
A::value, Ouch);
static_assert(is_samedecltype(reinterpret_castconst A*(valB*())), const
A*::value, Ouch);
static_assert(is_samedecltype(reinterpret_castconst A(valB())), const
A::value, Ouch);
static_assert(is_samedecltype(dynamic_castconst A*(valB*())), const
A*::value, Ouch); // Error!
static_assert(is_samedecltype(dynamic_castconst A(valB())), const
A::value, Ouch); // Error!
In agreement with that bug report I see failures for the last two even for gcc
4.9.0 20130609 (experimental)
[Bug fortran/57596] select type bug with optional variables?
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57596 --- Comment #2 from Valery Weber valeryweber at hotmail dot com --- But the selector is not optional. The problem even remains if I move the optional variables outside the SELECT TYPE (see bellow). Those 2 codes run just fine with other compilers like ifort or xlf. Thanks Valery MODULE base_types TYPE :: base_integer_type INTEGER :: i END TYPE base_integer_type TYPE :: base_character_type CHARACTER( 10 ) :: c END TYPE base_character_type END MODULE base_types PROGRAM main USE base_types IMPLICIT NONE INTEGER::i_val call get ( i_val=i_val ) write(*,*) 'i_val',i_val contains SUBROUTINE get (i_val, c_val) INTEGER, INTENT( OUT ), OPTIONAL :: i_val CHARACTER( : ), INTENT( OUT ), ALLOCATABLE, OPTIONAL :: c_val CLASS( * ), POINTER :: p TYPE( base_integer_type ),target :: i_base INTEGER :: i_val_tmp CHARACTER( 10 ) :: c_val_tmp i_base%i=-12 p=i_base SELECT TYPE( p ) TYPE IS( base_integer_type ) i_val_tmp = p%i TYPE IS( base_character_type ) c_val_tmp = p%c CLASS DEFAULT stop END SELECT IF(present(i_val)) i_val = i_val_tmp if(present(c_val)) c_val = c_val_tmp END SUBROUTINE get END PROGRAM main
[Bug c++/57599] result of dynamic_castcv T is just T
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57599 --- Comment #5 from Andrey Belevantsev abel at gcc dot gnu.org --- (In reply to Daniel Krügler from comment #4) I created a test case for all type conversion operators: Paolo has already submitted a patch with the expanded test case at http://gcc.gnu.org/ml/gcc-patches/2013-06/msg00760.html/
[Bug tree-optimization/57601] New: Vector lowering could use larger modes
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57601
Bug ID: 57601
Summary: Vector lowering could use larger modes
Product: gcc
Version: 4.9.0
Status: UNCONFIRMED
Keywords: missed-optimization
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: glisse at gcc dot gnu.org
Target: x86_64-linux-gnu
typedef int vec __attribute__((vector_size(2*sizeof(int;
vec f(vec a, vec b){
return a-b;
}
vmovq%xmm0, %rcx
vmovq%xmm1, %rdx
movl%ecx, %eax
shrq$32, %rcx
subl%edx, %eax
shrq$32, %rdx
subl%edx, %ecx
vmovd%eax, %xmm2
vpinsrd$1, %ecx, %xmm2, %xmm0
(with -Ofast -mavx2) whereas if I change the size to 4, I get:
vpsubd%xmm1, %xmm0, %xmm0
which seems valid to me even for size 2. It is not clear to me how to model
that at tree level, maybe it would be easier to just implement V2SI operations
in the backend?
[Bug regression/57551] [4.9 Regression]: g++.dg/ext/visibility/anon6.C scan-assembler 1BIiE1cE
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57551 Jakub Jelinek jakub at gcc dot gnu.org changed: What|Removed |Added CC||fche at redhat dot com, ||jakub at gcc dot gnu.org --- Comment #12 from Jakub Jelinek jakub at gcc dot gnu.org --- In particular, the problem is that we used to have a hacked up version of svnmailer, which created the special emails for bugzilla, now the server has a new upstream version of svnmailer and these hacks weren't ported to it.
[Bug target/57601] Vector lowering could use larger modes
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57601 Andrew Pinski pinskia at gcc dot gnu.org changed: What|Removed |Added Component|tree-optimization |target --- Comment #1 from Andrew Pinski pinskia at gcc dot gnu.org --- Aren't xmm0 MMX registers which means they overlap with the floating point registers in some cases and that also means you need to use emms instructions?
[Bug lto/57602] New: Runfails for several C/C++ benchmarks from spec2000 for i686 with -flto after r199422
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57602 Bug ID: 57602 Summary: Runfails for several C/C++ benchmarks from spec2000 for i686 with -flto after r199422 Product: gcc Version: 4.9.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: lto Assignee: unassigned at gcc dot gnu.org Reporter: izamyatin at gmail dot com CC: jh at suse dot cz Target: i686 For instance, 164.gzip has Segmentation fault. (tried on trunk, revision 200055) Compiler options -m32 -Ofast -flto -funroll-loops -msse2 -mfpmath=sse.
[Bug fortran/45170] [F2003] allocatable character lengths
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45170 Bug 45170 depends on bug 57596, which changed state. Bug 57596 Summary: Wrong code for allocatable deferred-length strings http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57596 What|Removed |Added Status|RESOLVED|REOPENED Resolution|INVALID |---
[Bug fortran/57596] Wrong code for allocatable deferred-length strings
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57596 Tobias Burnus burnus at gcc dot gnu.org changed: What|Removed |Added Keywords||wrong-code Status|RESOLVED|REOPENED Last reconfirmed||2013-06-13 Blocks||45170 Resolution|INVALID |--- Summary|select type bug with|Wrong code for allocatable |optional variables? |deferred-length strings Ever confirmed|0 |1 --- Comment #3 from Tobias Burnus burnus at gcc dot gnu.org --- REOPEN PROGRAM main IMPLICIT NONE call get () contains SUBROUTINE get (c_val) CHARACTER( : ), INTENT( OUT ), ALLOCATABLE, OPTIONAL :: c_val CHARACTER( 10 ) :: c_val_tmp if(present(c_val)) c_val = c_val_tmp END SUBROUTINE get END PROGRAM main
[Bug tree-optimization/57370] [4.9 Regression] compiler hangs in reassoc
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57370 Marc Glisse glisse at gcc dot gnu.org changed: What|Removed |Added Status|UNCONFIRMED |NEW Last reconfirmed||2013-06-13 Component|middle-end |tree-optimization Ever confirmed|0 |1 --- Comment #8 from Marc Glisse glisse at gcc dot gnu.org --- Confirmed.
[Bug target/57601] Vector lowering could use larger modes
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57601
--- Comment #2 from Marc Glisse glisse at gcc dot gnu.org ---
With this code:
#include mmintrin.h
__m64 f(__m64 x, __m64 y){return _mm_sub_pi32(x,y);}
I get (-m64):
movdq2q%xmm0, %mm0
movdq2q%xmm1, %mm1
psubd%mm1, %mm0
movq2dq%mm0, %xmm0
and (-m32):
psubd%mm1, %mm0
[Bug c++/49718] please allow no_instrument_function attribute in class member definition/declaration
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49718 Avi Kivity a...@cloudius-systems.com changed: What|Removed |Added CC||a...@cloudius-systems.com --- Comment #1 from Avi Kivity a...@cloudius-systems.com --- Seeing this too.
[Bug tree-optimization/57600] Turn 2 comparisons into 1 with the min
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57600 Richard Biener rguenth at gcc dot gnu.org changed: What|Removed |Added Status|UNCONFIRMED |NEW Last reconfirmed||2013-06-13 Blocks||53947 Ever confirmed|0 |1 --- Comment #1 from Richard Biener rguenth at gcc dot gnu.org --- Confirmed. We have tree-ssa-if-combine.c that has various ways to combine ed and ||ed comparisons. This transform would be a useful addition.
[Bug libstdc++/56430] In __airy: return-statement with a value, in function returning 'void'.
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56430 Paolo Carlini paolo.carlini at oracle dot com changed: What|Removed |Added Status|UNCONFIRMED |RESOLVED Resolution|--- |FIXED Target Milestone|--- |4.9.0 --- Comment #4 from Paolo Carlini paolo.carlini at oracle dot com --- Fixed for 4.9.0.
[Bug tree-optimization/57600] Turn 2 comparisons into 1 with the min
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57600 --- Comment #2 from Marc Glisse glisse at gcc dot gnu.org --- The main difficulty is deciding when this transformation is a good idea. A priori abac can be faster than amin(b,c). Good cases: - if there is a min insn (like minsd for double on x86_64, but that might require finite-math-only); - if we are in a loop and b and c are invariants (not sure ifcombine is the right place for that). Or do we want to do the transformation always, and maybe have something later (in RTL?) to undo it if it didn't help? Note that in some experiments with more meat in the loop, having imin(n1,n2) made the compiler not see a dominating in1 anymore and it lost some optimizations.
[Bug bootstrap/57603] New: Bootstrap fail on s390x segfault in fold_marked_statements
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57603 Bug ID: 57603 Summary: Bootstrap fail on s390x segfault in fold_marked_statements Product: gcc Version: 4.9.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: bootstrap Assignee: unassigned at gcc dot gnu.org Reporter: krebbel at gcc dot gnu.org Created attachment 30300 -- http://gcc.gnu.org/bugzilla/attachment.cgi?id=30300action=edit delta minimized testcase cc1 -fpreprocessed -quiet -march=z9-109 -O1 t.c Program received signal SIGSEGV, Segmentation fault. 0x805c3b22 in fold_marked_statements(int, pointer_set_t*) () (gdb) bt #0 0x805c3b22 in fold_marked_statements(int, pointer_set_t*) () #1 0x805d258c in optimize_inline_calls(tree_node*) () #2 0x80900c82 in inline_transform(cgraph_node*) () #3 0x804b7b86 in execute_all_ipa_transforms() () #4 0x80234da6 in expand_function(cgraph_node*) () #5 0x80236e68 in compile() () #6 0x80237460 in finalize_compilation_unit() () #7 0x800f3740 in c_write_global_declarations() () #8 0x80568694 in compile_file() () #9 0x8056a84c in toplev_main(int, char**) () #10 0x03fffdc99088 in __libc_start_main (main=0x800d53ac main, argc=optimized out, ubp_av=0x3fff258, init=optimized out, fini=0x809ee1f8 __libc_csu_fini, rtld_fini=0x3fffdfed8f4 _dl_fini, stack_end=0x3fff1a0) at libc-start.c:226 #11 0x800d5412 in _start ()
[Bug bootstrap/57603] Bootstrap fail on s390x segfault in fold_marked_statements
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57603
--- Comment #1 from Andreas Krebbel krebbel at gcc dot gnu.org ---
The failure above was observed with r200057. Here the cc1 output:
cc1 -fpreprocessed -quiet -march=z9-109 -O1 t.c
t.c: In function ‘d_append_string’:
t.c:22:38: warning: incompatible implicit declaration of built-in function
‘strlen’ [enabled by default]
d_append_buffer (dpi, s, strlen (s));
^
t.c: In function ‘d_demangle_callback’:
t.c:41:102: warning: incompatible implicit declaration of built-in function
‘strlen’ [enabled by default]
else if ((__extension__ (__builtin_constant_p (8)
((__builtin_constant_p (mangled) strlen (mangled) ((size_t) (8))) ||
(__builtin_constant_p (_GLOBAL_) strlen (_GLOBAL_) ((size_t) (8 ?
__extension__ ({
^
t.c: In function ‘__gcclibcxx_demangle_callback’:
t.c:60:15: internal compiler error: Segmentation fault
int __gcclibcxx_demangle_callback (const char *mangled_name,
void (*callback) (const char *, size_t, void *),
void *opaque) {
^
Please submit a full bug report,
with preprocessed source if appropriate.
See http://gcc.gnu.org/bugs.html for instructions.
[Bug bootstrap/57604] New: LRA related bootstrap comparison failure on s390x --with-arch=zEC12
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57604 Bug ID: 57604 Summary: LRA related bootstrap comparison failure on s390x --with-arch=zEC12 Product: gcc Version: 4.9.0 Status: UNCONFIRMED Severity: major Priority: P3 Component: bootstrap Assignee: unassigned at gcc dot gnu.org Reporter: krebbel at gcc dot gnu.org Comparing stages 2 and 3 warning: gcc/cc1-checksum.o differs warning: gcc/cc1plus-checksum.o differs Bootstrap comparison failure! gcc/tree-ssa-loop-im.o differs stage2: .align2 .type_ZZN19ref_always_accessedclEP11mem_ref_locE12__FUNCTION__, @object .size_ZZN19ref_always_accessedclEP11mem_ref_locE12__FUNCTION__, 11 _ZZN19ref_always_accessedclEP11mem_ref_locE12__FUNCTION__: .stringoperator() stage3: .align2 .type_ZZN19ref_always_accessedclEP11mem_ref_locE12__FUNCTION__, @object .size_ZZN19ref_always_accessedclEP11mem_ref_locE12__FUNCTION__, 12 _ZZN19ref_always_accessedclEP11mem_ref_locE12__FUNCTION__: .stringoperator () Be aware of the additional blank in the string. This does not happen when disabling LRA for bootstrap.
[Bug target/55033] [4.7/4.8/4.9 Regression] PowerPC section type conflict error
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55033 --- Comment #9 from Sebastian Huber sebastian.hu...@embedded-brains.de --- If I run the tests on gcc1-power7.osuosl.org (which is target powerpc64-unknown-linux-gnu), then the PR55033 test case shows up as UNSUPPORTED: grep -r pr55033 . ./gcc/testsuite/gcc/gcc.sum:UNSUPPORTED: gcc.target/powerpc/pr55033.c ./gcc/testsuite/gcc/gcc.log:UNSUPPORTED: gcc.target/powerpc/pr55033.c ./gcc/testsuite/gcc11/gcc.log.sep:UNSUPPORTED: gcc.target/powerpc/pr55033.c ./gcc/testsuite/gcc11/gcc.sum.sep:UNSUPPORTED: gcc.target/powerpc/pr55033.c
[Bug fortran/57596] Wrong code for allocatable deferred-length strings
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57596 --- Comment #4 from Tobias Burnus burnus at gcc dot gnu.org --- Patch: http://gcc.gnu.org/ml/fortran/2013-06/msg00082.html
[Bug tree-optimization/57600] Turn 2 comparisons into 1 with the min
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57600 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 --- Perhaps we want to perform it just during ifcvt once it is rolled into vectorizer and works on an on-the-side bb? Then it wouldn't affect non-vectorized code.
[Bug tree-optimization/57600] Turn 2 comparisons into 1 with the min
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57600 --- Comment #4 from Marc Glisse glisse at gcc dot gnu.org --- (In reply to Jakub Jelinek from comment #3) Perhaps we want to perform it just during ifcvt once it is rolled into vectorizer and works on an on-the-side bb? Then it wouldn't affect non-vectorized code. We would miss some useful cases (in the original testcase, the transformation is worth it even without vectorizing), but at least it would make regressions unlikely...
[Bug c++/27557] OpenMP threadprivate directive does not work with non-POD types
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27557 Siddhesh Poyarekar siddhesh at redhat dot com changed: What|Removed |Added CC||siddhesh at redhat dot com --- Comment #11 from Siddhesh Poyarekar siddhesh at redhat dot com --- I had added __cxa_thread_atexit_impl to glibc earlier this year to support c++11 thread_local destructors[1][2]. Wouldn't that be good enough support from glibc for openmp too? [1] http://sourceware.org/glibc/wiki/Destructor%20support%20for%20thread_local%20variables [2] http://sourceware.org/git/?p=glibc.git;a=commit;h=ba384f6ed9275f3966505f2375b56d169e3dc588
[Bug preprocessor/57580] Repeated _Pragma message directives in macro causes problems
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57580 Chung-Ju Wu jasonwucj at gmail dot com changed: What|Removed |Added CC||jasonwucj at gmail dot com --- Comment #2 from Chung-Ju Wu jasonwucj at gmail dot com --- I tested on 4.7.3 and 4.8.0 with my target porting: [test.c] ---8---8---8---8---8---8--- #define BROKEN\ _Pragma(message(\message0\))\ _Pragma(message(\message1\)) BROKEN ---8---8---8---8---8---8--- [4.7.3] $ nds32le-elf-gcc --version nds32le-elf-gcc (2013-06-04 nds32le-elf-newlib-v3) 4.7.3 Copyright (C) 2012 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. $ nds32le-elf-gcc test.c -c test.c:5:1: note: #pragma message: message0 test.c:5:1: note: #pragma message: message1 [4.8.0] $ nds32le-elf-gcc --version nds32le-elf-gcc (2013-06-13 nds32le-elf-newlib-v3) 4.8.0 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. $ nds32le-elf-gcc test.c -c test.c:5:1: note: #pragma message: message0 BROKEN ^ test.c:5:1: note: #pragma message: message1
[Bug testsuite/57605] New: colors break note pruning in the testsuite
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57605 Bug ID: 57605 Summary: colors break note pruning in the testsuite Product: gcc Version: 4.9.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: testsuite Assignee: unassigned at gcc dot gnu.org Reporter: glisse at gcc dot gnu.org Hello, I set GCC_COLORS in my .profile, and since then (roughly) I get many excess error failures in the libstdc++ testsuite. My guess is that it breaks: # Ignore informational notes. regsub -all (^|\n)\[^\n\]*: note: \[^\n\]* $text text Maybe the testsuite could explicitly disable colors?
[Bug lto/57602] Runfails for several C/C++ benchmarks from spec2000 for i686 with -flto after r199422
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57602 Yuri Rumyantsev ysrumyan at gmail dot com changed: What|Removed |Added CC||ysrumyan at gmail dot com --- Comment #1 from Yuri Rumyantsev ysrumyan at gmail dot com --- We also got a lot of run-time failures on eembc2.0 if it was compiled with -O3 -flto since wrong argument passing for clone (local) function: before the fix we have 8048f7d:b8 a0 a8 10 08 mov$0x810a8a0,%eax 8048f82:e8 19 5d 00 00 call 804eca0 set_cmd_line.lto_priv.21 i.e. argument is passed in AX register. after fix we have 8048f7d:c7 04 24 a0 a8 10 08 movl $0x810a8a0,(%esp) 8048f84:e8 87 5c 00 00 call 804ec10 set_cmd_line.lto_priv.21 i.e. argument is passed on stack but function assumes that it is on register. Note also that incremental fix proposed by Richard did not help.
[Bug preprocessor/57580] Repeated _Pragma message directives in macro causes problems
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57580 --- Comment #3 from Daniel Russel drussel at gmail dot com --- It looks like I confused something along the way of trying to produce a simple example. I'll revisit it on my end. Sorry.
[Bug preprocessor/57580] Repeated _Pragma message directives in macro causes problems
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57580 --- Comment #4 from Daniel Russel drussel at gmail dot com --- Here we go. Sorry again. drussel@flute:/tmp gcc -c test.cpp test.cpp:8:2: error: stray ‘#’ in program test.cpp:8:27: note: #pragma message: message0 test.cpp:8:3: error: ‘pragma’ does not name a type drussel@flute:/tmp cat test.cpp #define INNER \ _Pragma(message(\message0\)) #define BROKEN\ INNER \ _Pragma(message(\message1\)) BROKEN drussel@flute:/tmp gcc -v Using built-in specs. COLLECT_GCC=/usr/bin/gcc COLLECT_LTO_WRAPPER=/usr/libexec/gcc/x86_64-redhat-linux/4.7.2/lto-wrapper Target: x86_64-redhat-linux Configured with: ../configure --prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info --with-bugurl=http://bugzilla.redhat.com/bugzilla --enable-bootstrap --enable-shared --enable-threads=posix --enable-checking=release --disable-build-with-cxx --disable-build-poststage1-with-cxx --with-system-zlib --enable-__cxa_atexit --disable-libunwind-exceptions --enable-gnu-unique-object --enable-linker-build-id --with-linker-hash-style=gnu --enable-languages=c,c++,objc,obj-c++,java,fortran,ada,go,lto --enable-plugin --enable-initfini-array --enable-java-awt=gtk --disable-dssi --with-java-home=/usr/lib/jvm/java-1.5.0-gcj-1.5.0.0/jre --enable-libgcj-multifile --enable-java-maintainer-mode --with-ecj-jar=/usr/share/java/eclipse-ecj.jar --disable-libjava-multilib --with-ppl --with-cloog --with-tune=generic --with-arch_32=i686 --build=x86_64-redhat-linux Thread model: posix gcc version 4.7.2 20121109 (Red Hat 4.7.2-8) (GCC) It works fine on 4.4 and 4.6 at least.
[Bug target/55033] [4.7/4.8/4.9 Regression] PowerPC section type conflict error
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55033 Segher Boessenkool segher at gcc dot gnu.org changed: What|Removed |Added CC||segher at gcc dot gnu.org --- Comment #10 from Segher Boessenkool segher at gcc dot gnu.org --- The testcase needs to add -meabi to fix #8. Wrt #9: it seems you only tested 64-bit mode, -meabi is supported only in 32-bit mode.
[Bug c++/56746] [4.8 regression] increased memory usage when compiling C++
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56746 --- Comment #11 from Mathias Gaunard mathias at gaunard dot com --- 4.8.1 is still affected by this. I wouldn't say it's NOTABUG if a new diagnostic feature enabled by default increases memory consumption by 50%, even when no diagnostic is emitted. I cannot easily give a test case; the problem being preprocessor-related, the issues disappear once preprocessed. The code incriminated includes hundreds of files (if not more), split in about 20 different include directories. Those files contain templates instantiated hundreds of times each, and their body is generated by macros which may end up creating lines that are thousands of characters long.
[Bug c++/56746] [4.8 regression] increased memory usage when compiling C++
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56746 --- Comment #12 from Mathias Gaunard mathias at gaunard dot com --- This may be considered a duplicate of #53525, though that bug is more focused on performance than memory usage.
[Bug preprocessor/53525] Performance regression due to enabling track-macro-expansion
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53525 Mathias Gaunard mathias at gaunard dot com changed: What|Removed |Added CC||mathias at gaunard dot com --- Comment #16 from Mathias Gaunard mathias at gaunard dot com --- I opened bug #56746 a while ago which is somewhat related to this. ftrack-macro-expansion is causing 50% increased memory usage in my case (C++ code with heavy usage of macros and templates). Please also consider memory usage and not just performance.
[Bug testsuite/57605] colors break note pruning in the testsuite
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57605 Jakub Jelinek jakub at gcc dot gnu.org changed: What|Removed |Added CC||jakub at gcc dot gnu.org --- Comment #1 from Jakub Jelinek jakub at gcc dot gnu.org --- gcc/testsuite/lib/prune.exp adds -fdiagnostics-color=never to options, if libstdc++ doesn't source that tcl file, but uses something different, perhaps it needs to be tweaked similarly.
[Bug fortran/49074] [OOP] Defined assignment w/ CLASS arrays: Incomplete error message
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49074 Tobias Burnus burnus at gcc dot gnu.org changed: What|Removed |Added CC||burnus at gcc dot gnu.org --- Comment #12 from Tobias Burnus burnus at gcc dot gnu.org --- Author: mikael Date: Thu Jun 13 14:26:47 2013 New Revision: 200069 URL: http://gcc.gnu.org/viewcvs?rev=200069root=gccview=rev Log: fortran/ PR fortran/49074 * trans-expr.c (gfc_conv_variable): Don't walk the reference chain. Handle NULL array references. (gfc_conv_procedure_call): Remove code handling NULL array references. testsuite/ PR fortran/49074 * gfortran.dg/typebound_assignment_5.f03: New. Modified: trunk/gcc/fortran/ChangeLog trunk/gcc/fortran/trans-expr.c trunk/gcc/testsuite/ChangeLog Author: mikael Date: Thu Jun 13 14:30:17 2013 New Revision: 200070 URL: http://gcc.gnu.org/viewcvs?rev=200070root=gccview=rev Log: Commit forgotten file Added: trunk/gcc/testsuite/gfortran.dg/typebound_assignment_5.f03
[Bug testsuite/57606] New: Failure in testing stage 3 of gcc-4.7.2
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57606 Bug ID: 57606 Summary: Failure in testing stage 3 of gcc-4.7.2 Product: gcc Version: 4.7.2 Status: UNCONFIRMED Severity: normal Priority: P3 Component: testsuite Assignee: unassigned at gcc dot gnu.org Reporter: ExtraLeveLInSoftware at ntlworld dot com 1 Introduction Trying to test recently built gcc-4.7.2. Running Mac OS X: System Version:Mac OS X 10.5.8 (9L30) Kernel Version:Darwin 9.8.0 uname -mpv Darwin Kernel Version 9.8.0: Wed Jul 15 16:55:01 PDT 2009; root:xnu-1228.15.4~1/RELEASE_I386 i386 i386 This bug report concerns the following point. - An error reported by make testing stage 3, concerning ada acats Background information about the state of the build is given. Further information about the reason for the failure had been determined, with the effect of circumventing the problem. See also Summary of Bug below for the actual reason for the problem. 2 Report from configure etc. The existing compilation system for stage 1 was obtained as a ready built version of ada-4.3 in /usr/local/ada-4.3/bin/ (however, it reports that it is 4.4.0) bash gcc --version gcc (GCC) 4.4.0 20080314 (experimental) [trunk revision 133226] Copyright (C) 2008 Free Software Foundation, Inc. Building in /Gnu/gcc/obj. Sources in /Gnu/gcc/src/gcc-4.7.2/. The configure command was ../src/gcc-4.7.2/gcc-4.7.2/configure --enable-languages=ada,c,c++ This completed OK. 3 An error reported by make check Ran in /Gnu/gcc/obj/: make -k check ../logs/makechk-1.log The make check failed, with messages described below. First few lines of makechk-1log: autogen -T ../../src/gcc-4.7.2/fixincludes/check.tpl ../../src/gcc-4.7.2/fixincludes/inclhack.def make[2]: autogen: Command not found make[2]: *** [check] Error 127 make[1]: *** [check-fixincludes] Error 2 Last few lines of makechk-1log: make[3]: Target `check-am' not remade because of errors. make[2]: *** [check-recursive] Error 1 make[2]: Target `check' not remade because of errors. make[1]: *** [check-target-libitm] Error 2 make[1]: Target `check-target' not remade because of errors. make: *** [do-check] Error 2 make: Target `check' not remade because of errors. The log has quite a lot of Errors, but there are many passes in various sections. As suggested, many failures involve libitm (see Information about the build state below). === libitm Summary === # of expected passes1 # of unexpected failures14 # of unresolved testcases14 # of unsupported tests1 In the gnat tests, the summary has: # of expected passes1109 # of expected failures14 # of unsupported tests4 But in the ada acats.log there are many messages: i686-apple-darwin9-gcc-4.0.1: language ada not recognized and nothing was compiled. Final message: Failed to compile macrosub this was also in the .sum file. The makechk-1.log for acats has: === acats support === Generating support files...fatal error, run-time library not installed correctly cannot locate file system.ads gnatmake: *** make failed. Failed to compile macrosub Note that gcc version 4.0.1 (Apple Inc. build 5465) is /usr/bin/gcc (which does not support Ada). These tests are supposed to be using the just built stage 3 compiler. Thus the Ada acats testing has been totally omitted. The Installing GCC information indicates the need for Prerequisites: In order to build the Ada compiler (GNAT) you must already have GNAT installed because portions of the Ada frontend are written in Ada. However, there is nothing to say that an existing Ada compiler is also needed for testing. Consequently, although /usr/local/ada-4.3/bin/ was made available in the PATH used at build time, it was not added for testing. It was assumed that testing the as yet uninstalled compilation system would be self-contained. 4 Information about the build state 4.1The build has passed stage 3, but failed later. Completed stage3, got to Comparing stages 2 and 3, gave: Comparing stages 2 and 3 warning: gcc/cc1-checksum.o differs warning: gcc/cc1plus-checksum.o differs Comparison successful. It continued after this, but gave final error: ld: warning in ../../../src/gcc-4.7.2/libitm/clearcap.map, file is not of required architecture ld: pointer in read-only segment not allowed in slidable image, used in _del_opvnt from .libs/alloc_cpp.o collect2: error: ld returned 1 exit status make[4]: *** [libitm.la] Error 1 make[3]: *** [all-recursive] Error 1 make[2]: *** [all] Error 2 make[1]: *** [all-target-libitm] Error 2 make: *** [all] Error 2 The current situation seems to be that I have built the entire stage 3, but that the step Build runtime libraries using the stage3 compiler from the previous step. has failed. This has been discussed on
[Bug objc++/57607] New: g++ cannot distinguish obj-c message call from c++11 lambda
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57607
Bug ID: 57607
Summary: g++ cannot distinguish obj-c message call from c++11
lambda
Product: gcc
Version: 4.8.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: objc++
Assignee: unassigned at gcc dot gnu.org
Reporter: antonbachin at yahoo dot com
The following program (test.mm) has both a lambda and a message call:
#import cstdlib
#import iostream
#import Foundation/NSString.h
int main()
{
[] () { std::cout Hello world! std::endl; }();
std::cout [@Hello world! UTF8String] std::endl;
return EXIT_SUCCESS;
}
Compiling with gcc 4.8.1 results in:
g++-mp-4.8 -std=c++11 test.mm ./a.out
test.mm: In function 'int main()':
test.mm:8:6: error: expected identifier before ']' token
[] () { std::cout Hello world! std::endl; }();
^
test.mm:8:6: error: 'expression error' is not an Objective-C class name
or
alias
test.mm:8:6: error: objective-c++ message argument(s) are expected before
']' token
test.mm:8:11: error: expected ';' before '{' token
[] () { std::cout Hello world! std::endl; }();
^
test.mm:8:57: error: expected primary-expression before ')' token
[] () { std::cout Hello world! std::endl; }();
^
(I know that this wouldn't link, but I'm not getting that far). Meanwhile, with
clang:
clang++ -std=c++11 -framework Foundation test.mm ./a.out
Hello world!
Hello world!
Version information:
g++-mp-4.8 --version
g++-mp-4.8 (MacPorts gcc48 4.8.1_0) 4.8.1
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.
clang++ --version
Apple clang version 4.0 (tags/Apple/clang-421.0.60) (based on LLVM 3.1svn)
Target: x86_64-apple-darwin12.4.0
Thread model: posix
Compiling with -Wall -Wextra makes no difference in the output for either
compiler.
[Bug c/56977] gcc -Og incorrectly warns about 'constant zero length parameter'
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56977
Harald van Dijk harald at gigawatt dot nl changed:
What|Removed |Added
CC||harald at gigawatt dot nl
--- Comment #1 from Harald van Dijk harald at gigawatt dot nl ---
This is a bigger problem with glibc's open() implementation, where correct use
does not just lead to a warning, but to a compile-time error. Self-contained
test:
__attribute__((__error__(error))) void error ();
void f (int);
extern inline __attribute__((__always_inline__)) void f (int i) {
if (__builtin_constant_p (i)) {
error ();
}
}
void g(int j) {
f (j);
}
Compiling with -Og leads to:
$ gcc -Og -c test.c
In function ‘f’,
inlined from ‘g’ at test.c:12:5:
test.c:7:11: error: call to ‘error’ declared with attribute error: error
error ();
^
$ gcc --version
gcc (GCC) 4.8.1 20130603 (Red Hat 4.8.1-1)
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.
The if block, including the call to error(), gets removed at all optimization
levels (even -O0) other than -Og.
[Bug c++/57509] Segmentation fault when using __builtin_shuffle in templated class.
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57509 Marc Glisse glisse at gcc dot gnu.org changed: What|Removed |Added Status|NEW |ASSIGNED Assignee|unassigned at gcc dot gnu.org |glisse at gcc dot gnu.org Target Milestone|--- |4.9.0 --- Comment #8 from Marc Glisse glisse at gcc dot gnu.org --- Patch posted: http://gcc.gnu.org/ml/gcc-patches/2013-06/msg00470.html
[Bug tree-optimization/57361] Remove self memory assignment
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57361 --- Comment #2 from Marc Glisse glisse at gcc dot gnu.org --- I'll let Richard decide if this should stay open for the more aggressive optimization or not. r200034 | glisse | 2013-06-12 19:56:30 +0200 (Wed, 12 Jun 2013) | 10 lines 2013-06-12 Marc Glisse marc.gli...@inria.fr PR tree-optimization/57361 gcc/ * tree-ssa-dse.c (dse_possible_dead_store_p): Handle self-assignment. gcc/testsuite/ * gcc.dg/tree-ssa/pr57361.c: New file.
[Bug tree-optimization/57328] Missed optimization: Unable to vectorize Fortran min and max intrinsics
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57328 Marc Glisse glisse at gcc dot gnu.org changed: What|Removed |Added Status|UNCONFIRMED |NEW Last reconfirmed||2013-06-13 Blocks||53947 Ever confirmed|0 |1 --- Comment #11 from Marc Glisse glisse at gcc dot gnu.org --- Confirming that we currently can't vectorize code that involves a (con|dis)jonction of several conditions.
[Bug preprocessor/53525] Performance regression due to enabling track-macro-expansion
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53525 Manuel López-Ibáñez manu at gcc dot gnu.org changed: What|Removed |Added CC||manu at gcc dot gnu.org --- Comment #17 from Manuel López-Ibáñez manu at gcc dot gnu.org --- (In reply to Mathias Gaunard from comment #16) I opened bug #56746 a while ago which is somewhat related to this. ftrack-macro-expansion is causing 50% increased memory usage in my case (C++ code with heavy usage of macros and templates). Please also consider memory usage and not just performance. Perhaps you could try the patches posted here and report whether they reduce/increase memory usage? I am afraid that at the moment there is none with enough free time to work on this, so all the help we can get is appreciated. If you want me, i can close the other bug as a duplicate of this to have all info in a single bug, and update the description mentioning also memory usage.
[Bug target/57608] New: wrong code for expression at -O3 on x86_64-linux-gnu with -m32
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57608
Bug ID: 57608
Summary: wrong code for expression at -O3 on x86_64-linux-gnu
with -m32
Product: gcc
Version: 4.9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: dhazeghi at yahoo dot com
Current gcc trunk and 4.8.x produces wrong code for the following testcase on
x86_64-linux when compiled at -O3 in 32-bit mode. This is a regression from
4.7.x.
$ gcc-trunk -v
gcc version 4.9.0 20130613 (experimental) [trunk revision 200065] (GCC)
$ gcc-trunk -O2 -m32 wrong.c
$ ./a.out
2
$ gcc-4.7 -O3 -m32 wrong.c
$ ./a.out
2
$ gcc-trunk -O3 -m32 wrong.c
$ ./a.out
3
$
--
int printf(const char *, ...);
int a, b, d, e, *f = b;
long long l, *pl = l;
char c, *pc = c;
int bar(int r, long long s) {
b++;
a = 0;
if (b) {
b = r + s;
b++;
return c;
}
{
int arr[] = {};
return 0;
}
}
void foo(int j) {
int k;
for (; j != 5; ++j) {
*pc = *f;
for (; e != 1; e++) {
*pl = 0;
{
int i = 0;
for (; i 1; i++)
a = 0;
}
k = bar(d, 1);
d = bar(1, k);
}
}
}
void baz() { foo(0); }
int main() {
foo(0);
printf(%d\n, c);
return 0;
}
[Bug middle-end/23623] volatile keyword changes bitfield access size from 32bit to 8bit
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23623 --- Comment #16 from Sandra Loosemore sandra at codesourcery dot com --- Patch that fixes regression posted here: http://gcc.gnu.org/ml/gcc-patches/2013-06/msg00750.html
[Bug middle-end/48784] #pragma pack(1) + -fstrict-volatile-bitfields = bad codegen
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48784 --- Comment #3 from Sandra Loosemore sandra at codesourcery dot com --- Patch posted here: http://gcc.gnu.org/ml/gcc-patches/2013-06/msg00750.html
[Bug middle-end/56341] GCC produces unaligned data access
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56341 --- Comment #12 from Sandra Loosemore sandra at codesourcery dot com --- Patch for the first problem posted here: http://gcc.gnu.org/ml/gcc-patches/2013-06/msg00750.html
[Bug target/56997] Incorrect write to packed field when strict-volatile-bitfields enabled on aarch32
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56997 --- Comment #5 from Sandra Loosemore sandra at codesourcery dot com --- Patch posted here: http://gcc.gnu.org/ml/gcc-patches/2013-06/msg00750.html
