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* [Bug c/33147] New: ICE: SEGV compiling for -mcpu=ep9312 -mfpu-maverick -mhard-float -O @ 2007-08-22 11:54 martinwguy at yahoo dot it 2007-08-22 19:25 ` [Bug target/33147] " martinwguy at yahoo dot it ` (4 more replies) 0 siblings, 5 replies; 6+ messages in thread From: martinwguy at yahoo dot it @ 2007-08-22 11:54 UTC (permalink / raw) To: gcc-bugs This file: void t(double foo) { puts(foo <= 1.0 ? "foo" : "bar"); } provokes ICE segfault when compiled with gcc -O -mfpu=maverick -mcpu=ep9312 -mhard-float -c t.c Confirmed same behaviour in: - native Debian "armel" gcc-4.1.3 arm-linux-gnueabi - native Debian "arm" gcc-4.1.2 on arm-linux-gnu - cross-compiler gcc-4.1.1 on i386-linux-gnu target arm-linux-gnueabi The SEGV goes away if -msoft-float is used instead of -mhard-float; removing -O also makes the compilation succeed. Strangely, explicitly supplying the -f flags that -O is said to enable: -fdefer-pop -fdelayed-branch -fguess-branch-probability -fcprop-registers -floop-optimize -fif-conversion -fif-conversion2 -ftree-ccp -ftree-dce -ftree-dominator-opts -ftree-dse -ftree-ter -ftree-lrs -ftree-sra -ftree-copyrename -ftree-fre -ftree-ch -funit-at-a-time -fmerge-constants -fomit-frame-pointer does not provoke the segfault, but adding -O to the the list does. Here are the native gcc-4.1.3 details: Target: arm-linux-gnueabi Configured with: ../src/configure -v --enable-languages=c,c++,fortran,obj-c++,treelang --prefix=/usr --enable-shared --with-system-zlib --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --enable-nls --with-gxx-include-dir=/usr/include/c++/4.1.3 --program-suffix=-4.1 --enable-__cxa_atexit --enable-clocale=gnu --enable-libstdcxx-debug --enable-mpfr --disable-libssp --enable-checking=release arm-linux-gnueabi Thread model: posix gcc version 4.1.3 20070812 (prerelease) (Debian 4.1.2-15) Output: t.c: In function 't': t.c:4: internal compiler error: Segmentation fault Please submit a full bug report, with preprocessed source if appropriate. -- Summary: ICE: SEGV compiling for -mcpu=ep9312 -mfpu-maverick - mhard-float -O Product: gcc Version: 4.1.3 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: martinwguy at yahoo dot it GCC build triplet: arm-linux-gnueabi GCC host triplet: arm-linux-gnueabi GCC target triplet: arm-linux-gnueabi http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33147 ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug target/33147] ICE: SEGV compiling for -mcpu=ep9312 -mfpu-maverick -mhard-float -O 2007-08-22 11:54 [Bug c/33147] New: ICE: SEGV compiling for -mcpu=ep9312 -mfpu-maverick -mhard-float -O martinwguy at yahoo dot it @ 2007-08-22 19:25 ` martinwguy at yahoo dot it 2007-08-24 17:35 ` martinwguy at yahoo dot it ` (3 subsequent siblings) 4 siblings, 0 replies; 6+ messages in thread From: martinwguy at yahoo dot it @ 2007-08-22 19:25 UTC (permalink / raw) To: gcc-bugs ------- Comment #1 from martinwguy at yahoo dot it 2007-08-22 19:25 ------- Also present in gcc version 4.2.1 (Debian 4.2.1-4) native compiler on arm-linux-gnueabi This bug was originally shown up by three files in lame-3.97; this is the smallest code that reproduces it. -- martinwguy at yahoo dot it changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |martinwguy at yahoo dot it http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33147 ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug target/33147] ICE: SEGV compiling for -mcpu=ep9312 -mfpu-maverick -mhard-float -O 2007-08-22 11:54 [Bug c/33147] New: ICE: SEGV compiling for -mcpu=ep9312 -mfpu-maverick -mhard-float -O martinwguy at yahoo dot it 2007-08-22 19:25 ` [Bug target/33147] " martinwguy at yahoo dot it @ 2007-08-24 17:35 ` martinwguy at yahoo dot it 2007-08-29 18:45 ` martinwguy at yahoo dot it ` (2 subsequent siblings) 4 siblings, 0 replies; 6+ messages in thread From: martinwguy at yahoo dot it @ 2007-08-24 17:35 UTC (permalink / raw) To: gcc-bugs ------- Comment #2 from martinwguy at yahoo dot it 2007-08-24 17:34 ------- Also present using -mfloat-abi=softfp -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33147 ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug target/33147] ICE: SEGV compiling for -mcpu=ep9312 -mfpu-maverick -mhard-float -O 2007-08-22 11:54 [Bug c/33147] New: ICE: SEGV compiling for -mcpu=ep9312 -mfpu-maverick -mhard-float -O martinwguy at yahoo dot it 2007-08-22 19:25 ` [Bug target/33147] " martinwguy at yahoo dot it 2007-08-24 17:35 ` martinwguy at yahoo dot it @ 2007-08-29 18:45 ` martinwguy at yahoo dot it 2008-10-12 10:47 ` martinwguy at yahoo dot it 2009-01-02 12:10 ` laurent at guerby dot net 4 siblings, 0 replies; 6+ messages in thread From: martinwguy at yahoo dot it @ 2007-08-29 18:45 UTC (permalink / raw) To: gcc-bugs ------- Comment #3 from martinwguy at yahoo dot it 2007-08-29 18:45 ------- The patches contained in http://files.futaris.org/gcc/crunch.tar.bz2 not only fix this issue but also make MaverickCrunch support work reliably in gcc-4.1.2 and gcc-4.2.0 (presumably they can also apply to TRUNK). There are more patches in the gcc/gcc-{4.1.2,4.2.0} dirs than are necessary (old versions) - applying the ones listed in the .bb files makes for a working system. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33147 ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug target/33147] ICE: SEGV compiling for -mcpu=ep9312 -mfpu-maverick -mhard-float -O 2007-08-22 11:54 [Bug c/33147] New: ICE: SEGV compiling for -mcpu=ep9312 -mfpu-maverick -mhard-float -O martinwguy at yahoo dot it ` (2 preceding siblings ...) 2007-08-29 18:45 ` martinwguy at yahoo dot it @ 2008-10-12 10:47 ` martinwguy at yahoo dot it 2009-01-02 12:10 ` laurent at guerby dot net 4 siblings, 0 replies; 6+ messages in thread From: martinwguy at yahoo dot it @ 2008-10-12 10:47 UTC (permalink / raw) To: gcc-bugs ------- Comment #4 from martinwguy at yahoo dot it 2008-10-12 10:46 ------- ... but those patches simply disable all conditionally-executed instructions, which is no good for mainline. What is needed is a new CC mode, as discussed in http://gcc.gnu.org/ml/gcc/2007-06/msg00938.html -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33147 ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug target/33147] ICE: SEGV compiling for -mcpu=ep9312 -mfpu-maverick -mhard-float -O 2007-08-22 11:54 [Bug c/33147] New: ICE: SEGV compiling for -mcpu=ep9312 -mfpu-maverick -mhard-float -O martinwguy at yahoo dot it ` (3 preceding siblings ...) 2008-10-12 10:47 ` martinwguy at yahoo dot it @ 2009-01-02 12:10 ` laurent at guerby dot net 4 siblings, 0 replies; 6+ messages in thread From: laurent at guerby dot net @ 2009-01-02 12:10 UTC (permalink / raw) To: gcc-bugs ------- Comment #5 from laurent at guerby dot net 2009-01-02 12:08 ------- Works on gcc 4.3.2-1 Debian gnueabi and trunk at rev 142984. -- laurent at guerby dot net changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |RESOLVED Resolution| |FIXED http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33147 ^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2009-01-02 12:10 UTC | newest] Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2007-08-22 11:54 [Bug c/33147] New: ICE: SEGV compiling for -mcpu=ep9312 -mfpu-maverick -mhard-float -O martinwguy at yahoo dot it 2007-08-22 19:25 ` [Bug target/33147] " martinwguy at yahoo dot it 2007-08-24 17:35 ` martinwguy at yahoo dot it 2007-08-29 18:45 ` martinwguy at yahoo dot it 2008-10-12 10:47 ` martinwguy at yahoo dot it 2009-01-02 12:10 ` laurent at guerby dot net
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