$gcc --version gcc (GCC) 4.5.0 20090916 (experimental)
$gcc -O3 -fipa-pta -c regex.c /svn/compilers/gcc/libiberty/regex.c:8126:1: internal compiler error: in insert_vi_for_tree, at tree-ssa-structalias.c:2601 Please submit a full bug report, with preprocessed source if appropriate. See <http://gcc.gnu.org/bugs.html> for instructions. -- Summary: -fipa-pta -O3 leads to ICE : in insert_vi_for_tree, at tree-ssa-structalias.c:2601 Product: gcc Version: 4.5.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: middle-end AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: linuxl4 at sohu dot com GCC build triplet: x86_64-PC-LINUX GCC host triplet: x86_64-PC-LINUX GCC target triplet: x86_64-PC-LINUX http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41378