I came across some code that previously compiled at -O3 without complaint on gcc version 4.3.0 20080428 (Red Hat 4.3.0-8) and gcc version 4.4.1 (Ubuntu 4.4.1-4ubuntu9), but triggered a segmentation fault on gcc 4.4.3. After minimization, here is the segmentation fault: $ /net/test-hsa014/wlam/local/gcc-4.4.3/bin/gcc -Wfatal-errors -c -O3 -Wall foo.cc foo.cc: In member function ‘void TypeRegistry<ValueType>::registerType(int, const ValueType&) [with ValueType = int (*)()]’: foo.cc:119: internal compiler error: Segmentation fault Please submit a full bug report, with preprocessed source if appropriate. See <http://gcc.gnu.org/bugs.html> for instructions. $ /net/test-hsa014/wlam/local/gcc-4.4.3/bin/g++ -v Using built-in specs. Target: x86_64-unknown-linux-gnu Configured with: ../gcc-4.4.3/configure --prefix=/net/test-hsa014/wlam/local/gcc-4.4.3 --disable-multilib Thread model: posix gcc version 4.4.3 (GCC) (built from the GNU source distribution, though
Created attachment 20137 [details] Minimized C++ source causing segmentation fault in gcc 4.4.3 at -O3
Oops, the description is truncated: (built from the GNU source distribution, though the Fedora version of 4.4.3 shows similar behavior-- $ g++ -Wfatal-errors -c -O3 -Wall foo.ccfoo.cc: In member function ‘void TypeRegistry<ValueType>::registerType(int, const ValueType&) [with ValueType = int (*)()]’: foo.cc:119: internal compiler error: Segmentation fault Please submit a full bug report, with preprocessed source if appropriate. See <http://bugzilla.redhat.com/bugzilla> for instructions. Preprocessed source stored into /tmp/cc1IzDg0.out file, please attach this to your bugreport. $ gcc -v Using built-in specs. 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 --with-system-zlib --enable-__cxa_atexit --disable-libunwind-exceptions --enable-gnu-unique-object --enable-languages=c,c++,objc,obj-c++,java,fortran,ada --enable-java-awt=gtk --disable-dssi --enable-plugin --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 4.4.3 20100127 (Red Hat 4.4.3-4) (GCC) --as well)
Works on the trunk.
Could be a dup of bug 42871 or PR 43074.
I think you're right--I built gcc trunk at r157545, and I don't see the segmentation fault there. (Thanks for your quick response!)
Can't reproduce with either branches/gcc-4_4-branch or branches/redhat/gcc-4_4-branch any more.