GCC mainline for powerpc-linux segfaults when compiling several of the SPEC CPU2000 tests with "-ftree-vectorize -maltivec -mabi=altivec". For most of them this happens with both -m32 and -m64.
The minimized test case (to be attached) causes the failure when compiled with "-O2 -ftree-vectorize -maltivec --param ggc-min-expand=0 --param ggc-min-heapsize=0". The segfault is in fold_convert with orig having the value 0xa5a5a5a5. A reghunt identified the following patch from [EMAIL PROTECTED]: http://gcc.gnu.org/ml/gcc-cvs/2005-09/msg00635.html This could be a latent bug, since on one of the systems I use regularly I was not able to reproduce the failure. -- Summary: use of garbage-collected memory with -ftree-vectorize Product: gcc Version: 4.1.0 Status: UNCONFIRMED Severity: normal Priority: P2 Component: middle-end AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: janis187 at us dot ibm dot com CC: gcc-bugs at gcc dot gnu dot org,rth at gcc dot gnu dot org GCC target triplet: powerpc-linux http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24095
