[Bug c/33362] New: [4.3 Regression] Bootstrap comparison failure (rev. 128287)
Mainline revision 128287. Configured with: % ../gcc/configure --enable-languages=c,c++,fortran bootsrapped with: % make -j 8 Comparing stages 2 and 3 /home/victork/mainline/build.128287/stage3-gcc warning: ./cc1plus-checksum.o differs warning: ./cc1-checksum.o differs Bootstrap comparison failure! ./cfg.o differs ./cfgloopmanip.o differs make[2]: *** [compare] Error 1 make[2]: Leaving directory `/home/victork/mainline/build.128287' make[1]: *** [stage3-bubble] Error 2 make[1]: Leaving directory `/home/victork/mainline/build.128287' make: *** [all] Error 2 -- Summary: [4.3 Regression] Bootstrap comparison failure (rev. 128287) Product: gcc Version: 4.3.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: victork at il dot ibm dot com GCC build triplet: i686-pc-linux-gnu GCC host triplet: i686-pc-linux-gnu GCC target triplet: i686-pc-linux-gnu http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33362
[Bug c++/33358] Slow calls through simple member function pointers
--- Comment #2 from dleska at gmail dot com 2007-09-09 06:47 --- (In reply to comment #1) VS seems to dispatch to some other function. Yep - if the function is virtual, VS generates a stub that does the vtable lookup. However for non virtual function the call is direct - which is much faster than what gcc does. Note that if I replace the first line of my example with 'class SomeClass;' - gcc and VS generate comparable code. However when the class is defined at the point of the call and does not use multiple/virtual inheritance, VS generates significantly faster calls (at least for non-virtual functions). Is this optimisation not possible in gcc? -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33358
[Bug other/33357] collect2: ld terminated with signal 11 [Segmentation fault]
--- Comment #3 from schwab at suse dot de 2007-09-09 08:09 ---
Use -B${binutils-bindir}, where ${binutils-bindir} is the directory where the
binutils binaries were installed. `-BPREFIX' This option specifies where
to find the executables, libraries, include files, and data files of the
compiler itself. The compiler driver program runs one or more of the
subprograms `cpp', `cc1', `as' and `ld'. It tries PREFIX as a prefix for
each program it tries to run, both with and without `MACHINE/VERSION/'
(*note Target Options::).
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33357
[Bug middle-end/33362] [4.3 Regression] Bootstrap comparison failure (rev. 128287)
--- Comment #1 from pinskia at gcc dot gnu dot org 2007-09-09 10:31 --- There have been chating about this on the IRC channel. -- pinskia at gcc dot gnu dot org changed: What|Removed |Added CC||pinskia at gcc dot gnu dot ||org Component|c |middle-end Target Milestone|--- |4.3.0 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33362
Re: [Bug c++/33350] copy constructor error
--- Comment #4 from stevenyi at 163 dot com 2007-09-09 05:26 --- I can not see any reason to call the copy constructor here. If you remove keyword explicit so that let the code compile, you can find that the copy constructor is not called at all. Again the 1998 standard (as written) says that even if the copy constructor is not called in this case, it needs to be able to be called implicitly. I am not making this up. -- Pinski
[Bug c++/33350] copy constructor error
--- Comment #5 from pinskia at gcc dot gnu dot org 2007-09-09 10:33 --- Subject: Re: copy constructor error --- Comment #4 from stevenyi at 163 dot com 2007-09-09 05:26 --- I can not see any reason to call the copy constructor here. If you remove keyword explicit so that let the code compile, you can find that the copy constructor is not called at all. Again the 1998 standard (as written) says that even if the copy constructor is not called in this case, it needs to be able to be called implicitly. I am not making this up. -- Pinski -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33350
Re: [Bug c++/33358] Slow calls through simple member function pointers
On 9 Sep 2007 06:47:40 -, dleska at gmail dot com [EMAIL PROTECTED] wrote: Is this optimisation not possible in gcc? Only because the ABI that GCC follows (the IA64 C++ ABI) says otherwise so we have to follow that. If you want this optimization, you will need the whole program as even if there is no inheritence in the current source, there can be in other places. -- Pinski
[Bug c++/33358] Slow calls through simple member function pointers
--- Comment #3 from pinskia at gcc dot gnu dot org 2007-09-09 10:37 --- Subject: Re: Slow calls through simple member function pointers On 9 Sep 2007 06:47:40 -, dleska at gmail dot com [EMAIL PROTECTED] wrote: Is this optimisation not possible in gcc? Only because the ABI that GCC follows (the IA64 C++ ABI) says otherwise so we have to follow that. If you want this optimization, you will need the whole program as even if there is no inheritence in the current source, there can be in other places. -- Pinski -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33358
[Bug fortran/31310] gfortran is missing -fcase-preserve option
--- Comment #6 from mralanmorgan at gmail dot com 2007-09-09 11:12 --- oooh someone's got their panties in a bunch. Sorry that you are so disillusioned by your own importance or whatever. My intial point stands... no real point in raising simple bugs if it takes years to fix. I appreciate what goes on in the background and I wasn't rude, just making a comment. A point missed by Steven is, less whining and more bu fixin. I've fixed it with a binary patch for that project and then switched to a better compiler for my current projec. So this bug is dead for me. -- mralanmorgan at gmail dot com changed: What|Removed |Added Status|NEW |RESOLVED Resolution||WONTFIX http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31310
[Bug fortran/33363] New: gfortran is missing -fcase-preserve option
Split-off from PR31310.
g77 has a huge number (~20) of case options, cf.
http://gcc.gnu.org/onlinedocs/gcc-3.4.6/g77/Fortran-Dialect-Options.html#index-g_t_002dfintrin_002dcase_002dinitcap-option-237
-fcase-preserve would probably be the most useful option; I don't know how much
needed this option is for old code (cf. PR31310).
Mentioning -fcase-lower in the gfortran manual is a bit odd if this options
does not actually exist.
In gfortran's invoke.texi:
For example, with @option{-funderscoring}, and assuming other defaults like
@option{-fcase-lower} and that @code{j()} and @code{max_count()} are
external functions while @code{my_var} and @code{lvar} are local variables,
a statement like
--
Summary: gfortran is missing -fcase-preserve option
Product: gcc
Version: 4.3.0
Status: UNCONFIRMED
Severity: enhancement
Priority: P3
Component: fortran
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: burnus at gcc dot gnu dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33363
[Bug middle-end/33362] [4.3 Regression] Bootstrap comparison failure (rev. 128287)
--- Comment #2 from rguenth at gcc dot gnu dot org 2007-09-09 12:41 --- works for me -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33362
[Bug tree-optimization/33361] ICE in find_outermost_region_in_block, at tree-cfg.c:4803
--- Comment #1 from gcc at abeckmann dot de 2007-09-09 12:51 --- Created an attachment (id=14177) -- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=14177action=view) testcase (reduced to be 500k) Sorry for the delay of the testcase, I had to reduce it from 1.9 MB to 440 KB. (Is there some helper script that can do this in a more or less brute force way? Strip complete namespaces, classes, member functions, ... from the code, recompile and check for a certain error message? Continue it it's still there and backtrack otherwise?) $ /suse/NOBACKUP/gcc/gcc-4.2-branch/bin/g++ -v -march=i686 -O3 -fopenmp -c PR33361.ii Using built-in specs. Target: i686-pc-linux-gnu Configured with: ../gcc-4_2-branch/configure --enable-languages=c,c++ --prefix=/suse/NOBACKUP/gcc/gcc-4.2-branch Thread model: posix gcc version 4.2.2 20070908 (prerelease) /suse/NOBACKUP/gcc/gcc-4.2-branch/libexec/gcc/i686-pc-linux-gnu/4.2.2/cc1plus -fpreprocessed PR33361.ii -quiet -dumpbase PR33361.ii -march=i686 -auxbase PR33361 -O3 -version -fopenmp -o /tmp/ccslyrRU.s GNU C++ version 4.2.2 20070908 (prerelease) (i686-pc-linux-gnu) compiled by GNU C version 4.2.2 20070908 (prerelease). GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072 Compiler executable checksum: 7993b3af5142d87e347d8f7153b00978 PR33361.ii: In function Op mcstl::for_each_template_random_access_ed(RandomAccessIterator, RandomAccessIterator, Op, Fu, Red, Result, Result, typename std::iterator_traits_Iterator::difference_type) [with RandomAccessIterator = stxxl::request_ptr*, Op = stxxl::request_ptr, Fu = mcstl::fill_selectorstxxl::request_ptr*, Red = mcstl::dummy_reduct, Result = bool]: PR33361.ii:3047: internal compiler error: in find_outermost_region_in_block, at tree-cfg.c:4803 -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33361
[Bug web/33364] New: reporting bugs + minimizing testcases
Hi, the bugzilla enter-a-new-bug-page http://gcc.gnu.org/bugzilla/enter_bug.cgi?product=gcc points to http://gcc.gnu.org/bugzilla/page.cgi?id=bug-writing.html (which is a bit mozilla centric). Unfortunately neither page directs the user to the relevant pages for reporting gcc bugs: http://gcc.gnu.org/bugs.html and http://gcc.gnu.org/bugs/minimize.html Furthermore, /bugs.html should have a link to /bugs/minimize.html, too. /bugs/minimize.html: The perl/sed/vim commands to strip the preprocessed sources are too greedy as they remove #pragma commands that remain after preprocessing (e.g. #pragma omp). Better match on /^# / or /^# [0-9]/ -- Summary: reporting bugs + minimizing testcases Product: gcc Version: unknown Status: UNCONFIRMED Severity: normal Priority: P3 Component: web AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: gcc at abeckmann dot de http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33364
[Bug c/33362] [4.3 Regression] Bootstrap comparison failure (rev. 128287)
--- Comment #3 from victork at il dot ibm dot com 2007-09-09 13:22 --- Just tried with revision 128297, and bootstrap passed OK. Shell I close this PR? -- victork at il dot ibm dot com changed: What|Removed |Added Component|middle-end |c http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33362
[Bug c/33362] [4.3 Regression] Bootstrap comparison failure (rev. 128287)
--- Comment #5 from victork at il dot ibm dot com 2007-09-09 13:33 --- As bootstrap passes in revision 128297, I change the status to FIXED. -- victork at il dot ibm dot com changed: What|Removed |Added Status|UNCONFIRMED |RESOLVED Resolution||FIXED http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33362
[Bug c/33362] [4.3 Regression] Bootstrap comparison failure (rev. 128287)
--- Comment #4 from hp at gcc dot gnu dot org 2007-09-09 13:27 --- Shell I close this PR? Yes, please. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33362
[Bug tree-optimization/33361] ICE in find_outermost_region_in_block, at tree-cfg.c:4803
--- Comment #2 from rguenth at gcc dot gnu dot org 2007-09-09 13:37 --- Reducing. -- rguenth at gcc dot gnu dot org changed: What|Removed |Added CC||rguenth at gcc dot gnu dot ||org http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33361
[Bug tree-optimization/33361] ICE in find_outermost_region_in_block, at tree-cfg.c:4803
--- Comment #3 from rguenth at gcc dot gnu dot org 2007-09-09 13:41 --- There are http://gcc.gnu.org/wiki/HowToPrepareATestcase http://gcc.gnu.org/wiki/A_guide_to_testcase_reduction -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33361
[Bug web/33364] reporting bugs + minimizing testcases
--- Comment #1 from rguenth at gcc dot gnu dot org 2007-09-09 13:36 --- Confirmed. Danny, can you adjust the bug-writing url to the gcc specific one? -- rguenth at gcc dot gnu dot org changed: What|Removed |Added CC||dberlin at gcc dot gnu dot ||org Status|UNCONFIRMED |NEW Ever Confirmed|0 |1 Last reconfirmed|-00-00 00:00:00 |2007-09-09 13:36:13 date|| http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33364
[Bug web/33364] reporting bugs + minimizing testcases
--- Comment #2 from gcc at abeckmann dot de 2007-09-09 13:49 --- Another URL valuable for minimize.html: http://gcc.gnu.org/wiki/A_guide_to_testcase_reduction -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33364
[Bug testsuite/33365] New: GCC test 20000804-1.c with -O0
gcc-4.2.2-20070907/gcc/testsuite/gcc.c-torture/compile/2804-1.c: In
function 'f':
gcc-4.2.2-20070907/gcc/testsuite/gcc.c-torture/compile/2804-1.c:15: error:
'asm' operand requires impossible reload
gcc-4.2.2-20070907/gcc/testsuite/gcc.c-torture/compile/2804-1.c:15: error:
'asm' operand requires impossible reload
The preprocessed source is:
---
# 1 gcc-4.2.2-20070907/gcc/testsuite/gcc.c-torture/compile/2804-1.c
# 1 built-in
# 1 command-line
# 1 gcc-4.2.2-20070907/gcc/testsuite/gcc.c-torture/compile/2804-1.c
# 9 gcc-4.2.2-20070907/gcc/testsuite/gcc.c-torture/compile/2804-1.c
__complex__ long long f ()
{
int i[99];
__complex__ long long v;
v += f ();
asm(: +r (v) : r (0), r (1));
v = 2;
return v;
g (v);
}
--
Summary: GCC test 2804-1.c with -O0
Product: gcc
Version: 4.2.2
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: testsuite
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: Vladislav dot Mikhailikov at paradox-neo dot uz
GCC build triplet: pentium4-east-linux-gcc
GCC host triplet: pentium4-east-linux-gcc
GCC target triplet: pentium4-east-linux-gcc
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33365
[Bug testsuite/33366] New: 20050316-2.c execution failure with -O0, -O1 and -O2
FAIL: gcc.c-torture/execute/20050316-2.c execution, -O0
FAIL: gcc.c-torture/execute/20050316-2.c execution, -O1
FAIL: gcc.c-torture/execute/20050316-2.c execution, -O2
The preprocessed source is:
# 1 gcc-4.2.2-20070907/gcc/testsuite/gcc.c-torture/execute/20050316-2.c
# 1 built-in
# 1 command-line
# 1 gcc-4.2.2-20070907/gcc/testsuite/gcc.c-torture/execute/20050316-2.c
extern void abort (void);
typedef int V2SI __attribute__ ((vector_size (8)));
typedef unsigned int V2USI __attribute__ ((vector_size (8)));
typedef float V2SF __attribute__ ((vector_size (8)));
typedef short V2HI __attribute__ ((vector_size (4)));
typedef unsigned int V2UHI __attribute__ ((vector_size (4)));
long long
test1 (V2SF x)
{
return (long long) (V2SI) x;
}
long long
test2 (V2SF x)
{
return (long long) x;
}
long long
test3 (V2SI x)
{
return (long long) (V2SF) x;
}
int
main (void)
{
if (sizeof (short) != 2 || sizeof (int) != 4 || sizeof (long long) != 8)
return 0;
V2SF x = { 2.0, 2.0 };
union { long long l; float f[2]; int i[2]; } u;
u.l = test1 (x);
if (u.f[0] != 2.0 || u.f[1] != 2.0)
abort ();
V2SF y = { 6.0, 6.0 };
u.l = test2 (y);
if (u.f[0] != 6.0 || u.f[1] != 6.0)
abort ();
V2SI z = { 4, 4 };
u.l = test3 (z);
if (u.i[0] != 4 || u.i[1] != 4)
abort ();
return 0;
}
--
Summary: 20050316-2.c execution failure with -O0, -O1 and -O2
Product: gcc
Version: 4.2.2
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: testsuite
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: Vladislav dot Mikhailikov at paradox-neo dot uz
GCC build triplet: pentium4-east-linux-gcc
GCC host triplet: pentium4-east-linux-gcc
GCC target triplet: pentium4-east-linux-gcc
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33366
[Bug testsuite/33367] New: A few tests fail
FAIL: gcc.target/i386/ssefn-1.c scan-assembler-not movsd FAIL: gcc.target/i386/ssefn-1.c scan-assembler-not mulsd FAIL: gcc.dg/tree-ssa/gen-vect-11b.c scan-tree-dump-times vectorized 0 loops 1 FAIL: gcc.dg/tree-ssa/gen-vect-11c.c scan-tree-dump-times vectorized 0 loops 1 FAIL: gcc.dg/builtin-apply4.c execution test FAIL: gcc.dg/compat/vector-2 c_compat_x_tst.o-c_compat_y_tst.o execute if you need preprocessed sources - let me know. -- Summary: A few tests fail Product: gcc Version: 4.2.2 Status: UNCONFIRMED Severity: normal Priority: P3 Component: testsuite AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: Vladislav dot Mikhailikov at paradox-neo dot uz GCC build triplet: pentium4-east-linux-gcc GCC host triplet: pentium4-east-linux-gcc GCC target triplet: pentium4-east-linux-gcc http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33367
[Bug tree-optimization/33361] ICE in find_outermost_region_in_block, at tree-cfg.c:4803
--- Comment #4 from rguenth at gcc dot gnu dot org 2007-09-09 14:24 --- Created an attachment (id=14178) -- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=14178action=view) reduced testcase -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33361
[Bug tree-optimization/33361] ICE in find_outermost_region_in_block, at tree-cfg.c:4803
--- Comment #5 from rguenth at gcc dot gnu dot org 2007-09-09 14:24 --- Confirmed. -- rguenth at gcc dot gnu dot org changed: What|Removed |Added CC||dnovillo at gcc dot gnu dot ||org Status|UNCONFIRMED |NEW Ever Confirmed|0 |1 Keywords||ice-on-valid-code Last reconfirmed|-00-00 00:00:00 |2007-09-09 14:24:50 date|| http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33361
[Bug testsuite/33367] A few tests fail
--- Comment #1 from Vladislav dot Mikhailikov at paradox-neo dot uz 2007-09-09 14:10 --- So, far gcc-4.2,2 is fine with GCC suite test results like: # of expected passes4 # of unexpected failures10 # of expected failures 116 # of unresolved testcases 1 # of untested testcases 28 # of unsupported tests 293 -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33367
[Bug bootstrap/33368] New: [4.3 regression] bootstrap comparision failure with --enable-targets=all
seen with r128190 on the trunk, works with r128189; configure with: --enable-languages=c --enable-targets=all i486-linux-gnu build with: make BOOT_CFLAGS=-O2 CFLAGS=-g -O2 make[3]: Leaving directory `/scratch/packages/gcc/svn/build-tst' Comparing stages 2 and 3 warning: ./cc1-checksum.o differs Bootstrap comparison failure! ./cfgloopmanip.o differs make[2]: *** [compare] Error 1 Setting BOOT_CFLAGS=-g -O2 lets the bootstrap succeed. Matthias -- Summary: [4.3 regression] bootstrap comparision failure with -- enable-targets=all Product: gcc Version: 4.3.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: bootstrap AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: debian-gcc at lists dot debian dot org GCC target triplet: i486-linux-gnu http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33368
[Bug bootstrap/33368] [4.3 regression] bootstrap comparision failure with --enable-targets=all
--- Comment #1 from rguenth at gcc dot gnu dot org 2007-09-09 15:39 --- This is a latent problem that comes and goes. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33368
[Bug rtl-optimization/33353] Vector RTL arithmetic operations with constant arguments are not fully folded.
-- bonzini at gnu dot org changed: What|Removed |Added Severity|normal |enhancement Status|UNCONFIRMED |NEW Ever Confirmed|0 |1 Last reconfirmed|-00-00 00:00:00 |2007-09-09 17:41:42 date|| http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33353
Unable to compile a simple C program... Please Help!
I have pasted the source file and the error log below
that contains the error message displayed when I
invoke 'gcc' to compile this file.
sample.c: (source file)
#include stdio.h
void main()
{
printf(Hello World!\n);
}
error log:
Using built-in specs.
Target: i486-linux-gnu
Configured with: ../src/configure -v
--enable-languages=c,c++,fortran,objc,obj-c++,treelang
--prefix=/usr --enable-shared --with-system-zlib
--libexecdir=/usr/lib --without-included-gettext
--enable-threads=posix --enable-nls
--program-suffix=-4.1 --enable-__cxa_atexit
--enable-clocale=gnu --enable-libstdcxx-debug
--enable-mpfr --enable-checking=release i486-linux-gnu
Thread model: posix
gcc version 4.1.2 (Ubuntu 4.1.2-0ubuntu4)
/usr/lib/gcc/i486-linux-gnu/4.1.2/cc1 -E -quiet -v
sample.c -mtune=generic -fpch-preprocess -o sample.i
ignoring nonexistent directory
/usr/local/include/i486-linux-gnu
ignoring nonexistent directory
/usr/lib/gcc/i486-linux-gnu/4.1.2/../../../../i486-linux-gnu/include
ignoring nonexistent directory
/usr/include/i486-linux-gnu
#include ... search starts here:
#include ... search starts here:
/usr/local/include
/usr/lib/gcc/i486-linux-gnu/4.1.2/include
/usr/include
End of search list.
sample.c:1:19: error: stdio.h: No such file or
directory
P.s. I'm a newbie to linux and as such i might not
understand the technical jargons used by you experts.
Please get down to earth to help me out. I'm falling
in love with linux but do not want to disappoint
myself with such troubles.
Get the freedom to save as many mails as you wish. To know how, go to
http://help.yahoo.com/l/in/yahoo/mail/yahoomail/tools/tools-08.html
[Bug libgcj/33326] libjava - testsuite fails on intel Macintosh
--- Comment #3 from andreast at gcc dot gnu dot org 2007-09-09 18:40 --- Subject: Bug 33326 Author: andreast Date: Sun Sep 9 18:40:36 2007 New Revision: 128302 URL: http://gcc.gnu.org/viewcvs?root=gccview=revrev=128302 Log: 2007-09-09 Andreas Tobler [EMAIL PROTECTED] PR libgcj/33326 * testsuite/lib/libjava.exp (libjava_arguments): Append the test spec only for linux targets. Modified: trunk/libjava/ChangeLog trunk/libjava/testsuite/lib/libjava.exp -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33326
[Bug libgcj/33326] libjava - testsuite fails on intel Macintosh
--- Comment #4 from andreast at gcc dot gnu dot org 2007-09-09 18:43 --- Checked in the mentioned patch. Fixed. -- andreast at gcc dot gnu dot org changed: What|Removed |Added Status|ASSIGNED|RESOLVED Resolution||FIXED http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33326
Another BOOTSTRAP failure on sparc-sun-solaris2.10, stage2 miscompiled
Rats, I'm getting another bootstap failure on sparc-sun-solaris2.10.
This time it happens in stage2 building libgcc. What happens is that
when it runs configure for stage2 libgcc, I get:
checking for suffix of object files...
configure: error: cannot compute suffix of object files: cannot compile
See `config.log' for more details.
whereupon in config.log I see:
configure: failed program was:
| /* confdefs.h. */
|
| #define PACKAGE_NAME GNU C Runtime Library
| #define PACKAGE_TARNAME libgcc
| #define PACKAGE_VERSION 1.0
| #define PACKAGE_STRING GNU C Runtime Library 1.0
| #define PACKAGE_BUGREPORT
| /* end confdefs.h. */
|
| int
| main ()
| {
|
| ;
| return 0;
| }
The stage2 gcc cannot compile this simple program. The stage1
compiler can, so looks like stage2 was miscompiled. Running it under
gdb doesn't yield any useful info.
This is fairly recent as I got a successful testresult here:
http://gcc.gnu.org/ml/gcc-testresults/2007-09/msg00402.html
The top of the gcc/ChangeLog from the working checkout was:
2007-09-07 Sterling Augustine [EMAIL PROTECTED]
* config/xtensa/lib2funcs.S (__xtensa_sync_caches): Use an ISYNC even
if there is no i-cache.
Is anyone else having a similar problem?
Thanks,
--Kaveh
--
Kaveh R. Ghazi [EMAIL PROTECTED]
Re: Another BOOTSTRAP failure on sparc-sun-solaris2.10, stage2 miscompiled
Kaveh R GHAZI writes:
Kaveh Rats, I'm getting another bootstap failure on sparc-sun-solaris2.10.
Kaveh This time it happens in stage2 building libgcc. What happens is that
Kaveh when it runs configure for stage2 libgcc, I get:
Kaveh checking for suffix of object files...
Kaveh configure: error: cannot compute suffix of object files: cannot compile
Kaveh See `config.log' for more details.
Kaveh whereupon in config.log I see:
Kaveh configure: failed program was:
Kaveh | /* confdefs.h. */
Kaveh |
Kaveh | #define PACKAGE_NAME GNU C Runtime Library
Kaveh | #define PACKAGE_TARNAME libgcc
Kaveh | #define PACKAGE_VERSION 1.0
Kaveh | #define PACKAGE_STRING GNU C Runtime Library 1.0
Kaveh | #define PACKAGE_BUGREPORT
Kaveh | /* end confdefs.h. */
Kaveh |
Kaveh | int
Kaveh | main ()
Kaveh | {
Kaveh |
Kaveh | ;
Kaveh | return 0;
Kaveh | }
Kaveh The stage2 gcc cannot compile this simple program. The stage1
Kaveh compiler can, so looks like stage2 was miscompiled. Running it under
Kaveh gdb doesn't yield any useful info.
I am seeing the same failure on AIX. The SEGV on AIX is in
postreload.c and if I recompile that file without optimization, the config
test succeeds.
David
Re: Another BOOTSTRAP failure on sparc-sun-solaris2.10, stage2 miscompiled
On Sun, 9 Sep 2007, David Edelsohn wrote: Kaveh The stage2 gcc cannot compile this simple program. The stage1 Kaveh compiler can, so looks like stage2 was miscompiled. Running it under Kaveh gdb doesn't yield any useful info. I am seeing the same failure on AIX. The SEGV on AIX is in postreload.c and if I recompile that file without optimization, the config test succeeds. David Ditto. Program received signal SIGSEGV, Segmentation fault. 0x002cf780 in reload_combine_note_store (dst=0xff0b90e0, set=value optimized out, data=0x0) at ../../egcc-SVN20070909/gcc/postreload.c:1018 1018 reg_state[i].store_ruid = reload_combine_ruid; (gdb) Any luck figuring out which patch broke it? --Kaveh -- Kaveh R. Ghazi [EMAIL PROTECTED]
[Bug target/30315] optimize unsigned-add overflow test on x86 to use cpu flags from addl
--- Comment #15 from rask at gcc dot gnu dot org 2007-09-09 19:22 --- Subject: Bug 30315 Author: rask Date: Sun Sep 9 19:21:59 2007 New Revision: 128305 URL: http://gcc.gnu.org/viewcvs?root=gccview=revrev=128305 Log: PR target/30315 * config/i386/i386.h (CANONICALIZE_COMPARISON): Delete. * simplify-rtx.c (simplify_relational_operation_1): Add the canonicalization from i386.h. * doc/md.texi (Canonicalization of Instructions): Document it. Modified: trunk/gcc/ChangeLog trunk/gcc/config/i386/i386.h trunk/gcc/doc/md.texi trunk/gcc/simplify-rtx.c -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30315
[Bug c/33369] New: bad sse assembler emitted
/home/marcus/projects/gcc/BIN/bin/gcc -m32 -c -O2 -ftree-vectorize -msse3 painting.i /tmp/ccXpPr3E.s: Assembler messages: /tmp/ccXpPr3E.s:17: Error: missing or invalid immediate expression `0x4000400040004' taken as 0 /tmp/ccXpPr3E.s:17: Error: suffix or operands invalid for `pslld' -- Summary: bad sse assembler emitted Product: gcc Version: 4.3.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: marcus at jet dot franken dot de GCC build triplet: x86_64-unknown-linux-gnu GCC host triplet: x86_64-unknown-linux-gnu GCC target triplet: i586-unknown-linux-gnu http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33369
[Bug c/33369] bad sse assembler emitted
--- Comment #1 from marcus at jet dot franken dot de 2007-09-09 19:25 --- Created an attachment (id=14179) -- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=14179action=view) painting.i testcase -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33369
[Bug rtl-optimization/33346] [4.3 Regression] g++.old-deja/g++.eh/ia64-1.C ICEs at -O1 on spu-elf
--- Comment #4 from dave at hiauly1 dot hia dot nrc dot ca 2007-09-09 19:27 --- Subject: Re: [4.3 Regression] g++.old-deja/g++.eh/ia64-1.C ICEs at -O1 on spu-elf Please try after r128284. See also story about this test-case for cris-elf at http://gcc.gnu.org/ml/gcc-patches/2007-09/msg00732.html. I'd hoped this would fix the miscompilation of stage2 that I have been seeing since yesterday but it does not. I see the same failure has been reported on solaris and aix. checking for suffix of object files... configure: error: cannot compute suffix o f object files: cannot compile Dave -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33346
[Bug fortran/33370] New: Passing structure component arrays as actual arguments
... doesn't work: $ cat foo.f90 program main type foo integer :: i character(len=2) :: c end type foo type(foo), dimension(4) :: a a%i = (/ 12, 2, 3, 10 /) a%c = 'xy' print *,maxval(a%i) print *,maxloc(a%i) call bar(a%i) contains subroutine bar(b) integer, dimension(:) :: b print *,b end subroutine bar end program main $ gfortran foo.f90 $ ./a.out 68 3 12 3 68 0 -- Summary: Passing structure component arrays as actual arguments Product: gcc Version: 4.3.0 Status: UNCONFIRMED Keywords: wrong-code Severity: normal Priority: P3 Component: fortran AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: tkoenig at gcc dot gnu dot org OtherBugsDependingO 32834 nThis: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33370
Re: Another BOOTSTRAP failure on sparc-sun-solaris2.10, stage2 miscompiled
Kaveh R GHAZI writes: Kaveh Program received signal SIGSEGV, Segmentation fault. Kaveh 0x002cf780 in reload_combine_note_store (dst=0xff0b90e0, set=value Kaveh optimized out, data=0x0) Kaveh at ../../egcc-SVN20070909/gcc/postreload.c:1018 Kaveh 1018 reg_state[i].store_ruid = reload_combine_ruid; Kaveh (gdb) That is the exact same failure and line for AIX. Apparently all Big Endian targets are affected. Kaveh Any luck figuring out which patch broke it? Not yet. Candidates include: r128239 (honza's simple dce/addressing passes) and then r128272 (the iv-opt patch), and Richi's sccvn patch. David
[Bug fortran/33370] Passing structure component arrays as actual arguments
-- tkoenig at gcc dot gnu dot org changed: What|Removed |Added Severity|normal |critical http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33370
[Bug fortran/33370] Structure component arrays
--- Comment #1 from tkoenig at gcc dot gnu dot org 2007-09-09 20:03 --- Reduced testcase due to Paul Thomas: $ cat goo.f90 program main type foo integer :: i character(len=3) :: c end type foo type(foo), dimension(4), target :: a a%i = (/ 12, 2, 3, 10 /) print *, a%i end program main $ gfortran goo.f90 $ ./a.out 12 3 68 0 Confirmed. -- tkoenig at gcc dot gnu dot org changed: What|Removed |Added Status|UNCONFIRMED |NEW Ever Confirmed|0 |1 Last reconfirmed|-00-00 00:00:00 |2007-09-09 20:03:43 date|| Summary|Passing structure component |Structure component arrays |arrays as actual arguments | http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33370
[Bug libgomp/33371] New: gcc: libgomp.spec: No such file or directory
gcc -fopenmp -O2 -s -o .libs/msgmerge msgmerge-msgmerge.o msgmerge-msgl-fsearch. o msgmerge-plural-count.o -fopenmp ./.libs/libgettextsrc.sl /xxx/gnu/gettext-0. 16.1/objdir/gettext-tools/gnulib-lib/.libs/libgettextlib.sl /xxx/gnu/gettext-0.1 6.1/objdir/gettext-tools/intl/.libs/libintl.sl -lc -lm -Wl,+b -Wl,/xxx/gnu/gette xt-0.16.1/objdir/gettext-tools/src/.libs:/xxx/gnu/gettext-0.16.1/objdir/gettext- tools/gnulib-lib/.libs:/xxx/gnu/gettext-0.16.1/objdir/gettext-tools/intl/.libs:/ opt/gnu/lib gcc: libgomp.spec: No such file or directory -- Summary: gcc: libgomp.spec: No such file or directory Product: gcc Version: 4.2.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: libgomp AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: danglin at gcc dot gnu dot org GCC build triplet: hppa2.0w-hp-hpux11.11 GCC host triplet: hppa2.0w-hp-hpux11.11 GCC target triplet: hppa2.0w-hp-hpux11.11 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33371
[Bug java/31842] [4.2/4.3 Regression] r124338 causes java Divide_1 and pr6388 to fail
--- Comment #8 from rguenth at gcc dot gnu dot org 2007-09-09 20:13 --- Subject: Bug 31842 Author: rguenth Date: Sun Sep 9 20:12:56 2007 New Revision: 128306 URL: http://gcc.gnu.org/viewcvs?root=gccview=revrev=128306 Log: 2007-09-09 Richard Guenther [EMAIL PROTECTED] Backport from mainline: 2007-05-07 Ian Lance Taylor [EMAIL PROTECTED] PR java/31842 * java/lang/natString.cc (_Jv_FormatInt): Avoid undefined signed overflow. Modified: branches/gcc-4_1-branch/libjava/ChangeLog branches/gcc-4_1-branch/libjava/java/lang/natString.cc -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31842
[Bug libgomp/33371] gcc: libgomp.spec: No such file or directory
--- Comment #1 from dave at hiauly1 dot hia dot nrc dot ca 2007-09-09 20:26 --- Subject: Re: New: gcc: libgomp.spec: No such file or directory gcc: libgomp.spec: No such file or directory It appears libgomp didn't get installed although it builds and there are no fails in the testsuite. Will check 4.2.1. Dave -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33371
[Bug c/33111] Bad code generation with -O2 (ARM 7 architecture)
--- Comment #6 from gressau at optusnet dot com dot au 2007-09-09 20:44 --- Created an attachment (id=14180) -- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=14180action=view) Test of optimized comparison (-O2) Comparison of four consecutive bytes gets optimized (-O2) as comparison of a word. The word address produced does not have the last two bits zero and the ARM7 processor either ignores them (LPC2000) or data aborts (SAM7). -- gressau at optusnet dot com dot au changed: What|Removed |Added Attachment #14077|0 |1 is obsolete|| Attachment #14078|0 |1 is obsolete|| Attachment #14079|0 |1 is obsolete|| http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33111
[Bug c/33111] Bad code generation with -O2 (ARM 7 architecture)
--- Comment #7 from rask at gcc dot gnu dot org 2007-09-09 21:08 --- Did you read comment #1? Does -fno-strict-aliasing magically fix your code? -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33111
[Bug target/32097] m32c: ICE in expand_builtin_apply, at builtins.c:1525 building libobjc
--- Comment #2 from rask at gcc dot gnu dot org 2007-09-09 21:17 --- This still happens with revision 128297. -- rask at gcc dot gnu dot org changed: What|Removed |Added GCC host triplet|i386-unknown-netbsdelf2.0.2 | Summary|ICE in expand_builtin_apply,|m32c: ICE in |at builtins.c:1525 building |expand_builtin_apply, at |libobjc |builtins.c:1525 building ||libobjc http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32097
Re: Another BOOTSTRAP failure on sparc-sun-solaris2.10, stage2 miscompiled
I succeed past this failure if I revert Zdenek's iv-opts patch (r128272). David
[Bug target/11180] [avr-gcc] Optimization decrease performance of struct assignment.
--- Comment #12 from dmixm at marine dot febras dot ru 2007-09-09 21:59 --- Andy Hutchinson wrote (comment #6) that addition a 'movdi' instruction improves the result. I have try to add a very simple 'movdi' (which split into 2 SImode instuctions). In result: -O0 -- 85 words, -O1,2,3,s -- 50 words. Version is 4.2.1 -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11180
[Bug c/33111] Bad code generation with -O2 (ARM 7 architecture)
--- Comment #8 from gressau at optusnet dot com dot au 2007-09-09 22:23 --- Subject: RE: Bad code generation with -O2 (ARM 7 architecture) The -fno-strict-aliasing does not fix the unaligned access. -Original Message- From: rask at gcc dot gnu dot org [mailto:[EMAIL PROTECTED] Sent: Monday, 10 September 2007 07:08 To: [EMAIL PROTECTED] Subject: [Bug c/33111] Bad code generation with -O2 (ARM 7 architecture) --- Comment #7 from rask at gcc dot gnu dot org 2007-09-09 21:08 --- Did you read comment #1? Does -fno-strict-aliasing magically fix your code? -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33111
[Bug target/33359] [4.3 Regression] libgcc is miscompiled on SH
--- Comment #1 from kkojima at gcc dot gnu dot org 2007-09-09 22:37 --- Fixed with r128284 which reverts r128224. -- kkojima at gcc dot gnu dot org changed: What|Removed |Added Status|UNCONFIRMED |RESOLVED Resolution||FIXED http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33359
[Bug c++/33324] [4.3 Regression] ICE on new array of objects with virtual destructors.
--- Comment #4 from daney at gcc dot gnu dot org 2007-09-09 23:31 --- Subject: Bug 33324 Author: daney Date: Sun Sep 9 23:31:35 2007 New Revision: 128312 URL: http://gcc.gnu.org/viewcvs?root=gccview=revrev=128312 Log: PR c++/33324 * init.c (build_new_1): Use POINTER_PLUS_EXPR instead of MINUS_EXPR to calculate cookie_ptr. Modified: trunk/gcc/cp/ChangeLog trunk/gcc/cp/init.c -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33324
[Bug c++/33324] [4.3 Regression] ICE on new array of objects with virtual destructors.
--- Comment #5 from daney at gcc dot gnu dot org 2007-09-09 23:33 --- Now fixed by the patch. -- daney at gcc dot gnu dot org changed: What|Removed |Added Status|ASSIGNED|RESOLVED Resolution||FIXED http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33324
Re: Another BOOTSTRAP failure on sparc-sun-solaris2.10, stage2 miscompiled
I succeed past this failure if I revert Zdenek's iv-opts patch (r128272). Same here. The failure also occurs on all hppa targets. Dave -- J. David Anglin [EMAIL PROTECTED] National Research Council of Canada (613) 990-0752 (FAX: 952-6602)
[Bug c++/33372] New: segfault on incomplete code in openmp mode
Playing with the code reduction tools, i produced a segfault with the following
(incomplete) code:
===
template typename T
void f ( )
{
unsigned n ( ) ;
#pragma omp parallel num_threads(n)
===
$ /suse/NOBACKUP/gcc/gcc-4.2-branch/bin/g++ -v -march=i686 -O3 -fopenmp -W
-Wall -c segfault2.ii
Using built-in specs.
Target: i686-pc-linux-gnu
Configured with: ../gcc-4_2-branch/configure --enable-languages=c,c++
--prefix=/suse/NOBACKUP/gcc/gcc-4.2-branch
Thread model: posix
gcc version 4.2.2 20070910 (prerelease)
/suse/NOBACKUP/gcc/gcc-4.2-branch/libexec/gcc/i686-pc-linux-gnu/4.2.2/cc1plus
-fpreprocessed segfault2.ii -quiet -dumpbase segfault2.ii -march=i686 -auxbase
segfault2 -O3 -W -Wall -version -fopenmp -o /tmp/ccUQF7PA.s
GNU C++ version 4.2.2 20070910 (prerelease) (i686-pc-linux-gnu)
compiled by GNU C version 4.2.2 20070908 (prerelease).
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
Compiler executable checksum: 4c766e638e42be49e7fc1a3400590598
segfault2.ii: In function void f():
segfault2.ii:5: internal compiler error: Segmentation fault
without -fopenmp, I get
segfault2.ii:5: warning: ignoring #pragma omp parallel
segfault2.ii:4: error: expected `}' at end of input
--
Summary: segfault on incomplete code in openmp mode
Product: gcc
Version: 4.2.2
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: gcc at abeckmann dot de
GCC build triplet: i686-pc-linux-gnu
GCC host triplet: i686-pc-linux-gnu
GCC target triplet: i686-pc-linux-gnu
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33372
[Bug c++/33324] [4.3 Regression] ICE on new array of objects with virtual destructors.
--- Comment #6 from patchapp at dberlin dot org 2007-09-10 02:40 --- Subject: Bug number PR 33324 A patch for this bug has been added to the patch tracker. The mailing list url for the patch is http://gcc.gnu.org/ml/gcc-patches/2007-09/msg00704.html -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33324
[Bug fortran/29396] segfault with character pointer association
--- Comment #7 from patchapp at dberlin dot org 2007-09-10 02:42 --- Subject: Bug number PR29396 A patch for this bug has been added to the patch tracker. The mailing list url for the patch is http://gcc.gnu.org/ml/gcc-patches/2007-09/msg00779.html -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29396
[Bug other/32154] sim-crt0.o/crt0.o isn't found during configure due to missing -L or -B
--- Comment #11 from patchapp at dberlin dot org 2007-09-10 02:43 --- Subject: Bug number PR 32154 A patch for this bug has been added to the patch tracker. The mailing list url for the patch is http://gcc.gnu.org/ml/gcc-patches/2007-09/msg00815.html -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32154
[Bug middle-end/33351] [4.3 Regression] segfault in assembler function
-- lauras at gcc dot gnu dot org changed: What|Removed |Added Status|ASSIGNED|WAITING http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33351
[Bug rtl-optimization/33346] [4.3 Regression] g++.old-deja/g++.eh/ia64-1.C ICEs at -O1 on spu-elf
-- lauras at gcc dot gnu dot org changed: What|Removed |Added AssignedTo|lauras at gcc dot gnu dot |unassigned at gcc dot gnu |org |dot org Status|ASSIGNED|NEW http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33346
[Bug c++/33350] copy constructor error
--- Comment #6 from fang at csl dot cornell dot edu 2007-09-10 04:04 --- Are you referring to DR 152? http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_defects.html#152 -- fang at csl dot cornell dot edu changed: What|Removed |Added CC||fang at csl dot cornell dot ||edu http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33350
[Bug target/33369] [4.3 Regression] suffix or operands invalid for `pslld'
--- Comment #2 from ubizjak at gmail dot com 2007-09-10 05:35 --- Confirmed. -- ubizjak at gmail dot com changed: What|Removed |Added Status|UNCONFIRMED |NEW Component|c |target Ever Confirmed|0 |1 GCC host triplet|x86_64-unknown-linux-gnu|i686-*-*, x86_64-*-* GCC target triplet|i586-unknown-linux-gnu |i686-*-*, x86_64-*-* Last reconfirmed|-00-00 00:00:00 |2007-09-10 05:35:48 date|| Summary|bad sse assembler emitted |[4.3 Regression] suffix or ||operands invalid for `pslld' http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33369
[Bug c/33373] New: ICE in vectorizable_type_demotion, at tree-vect-transform.c:4098
current SVN: /home/marcus/projects/gcc/BIN/bin/gcc -m32 -c -O3 -ftree-vectorize -msse3 dosmem.i dosmem.i: In function 'DOSMEM_FillIsrTable': dosmem.i:1: internal compiler error: in vectorizable_type_demotion, at tree-vect-transform.c:4098 Please submit a full bug report, with preprocessed source if appropriate. See http://gcc.gnu.org/bugs.html for instructions. -- Summary: ICE in vectorizable_type_demotion, at tree-vect- transform.c:4098 Product: gcc Version: 4.3.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: marcus at jet dot franken dot de GCC build triplet: x86_64-unknown-linux-gnu GCC host triplet: x86_64-unknown-linux-gnu GCC target triplet: i586-unknown-linux-gnu http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33373
[Bug c/33373] ICE in vectorizable_type_demotion, at tree-vect-transform.c:4098
--- Comment #1 from marcus at jet dot franken dot de 2007-09-10 05:41 --- Created an attachment (id=14181) -- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=14181action=view) dosmem.i -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33373
[Bug middle-end/33351] [4.3 Regression] segfault in assembler function
--- Comment #7 from marcus at jet dot franken dot de 2007-09-10 05:50 --- with current SVN (r128305) it is build again. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33351
