When I compile ace542 with the actual snapshot of gcc41 I get an ICE when I enable autovectorisation.
Michael Cieslinski g++41g -O -ftree-vectorize -c -o Policy_Set.o Policy_Set.ii Policy_Set.cpp: In copy constructor 'TAO_Policy_Set::TAO_Policy_Set(const TAO_Policy_Set&)': Policy_Set.cpp:32: error: definition in block 1 does not dominate use in block 5 for SSA_NAME: TMT.1063_114(ab) in statement: TMT.1063_154(ab) = PHI <TMT.1063_114(ab)(5), TMT.1063_114(ab)(6), TMT.1063_114 (ab)(7)>; PHI argument TMT.1063_114(ab) for PHI node TMT.1063_154(ab) = PHI <TMT.1063_114(ab)(5), TMT.1063_114(ab)(6), TMT.1063_114 (ab)(7)>; Policy_Set.cpp:32: internal compiler error: verify_ssa failed Please submit a full bug report, with preprocessed source if appropriate. g++41g -v Using built-in specs. Target: x86_64-unknown-linux-gnu Configured with: ../gcc-4.1-20050716/configure --prefix=/usr/local/gcc41g --program-suffix=41g --with-arch=opteron --enable-languages=c,c++ --enable-checking Thread model: posix gcc version 4.1.0 20050716 (experimental) -- Summary: ICE: verify_ssa failed with -ftree-vectorize Product: gcc Version: 4.1.0 Status: UNCONFIRMED Severity: normal Priority: P2 Component: tree-optimization AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: micis at gmx dot de CC: gcc-bugs at gcc dot gnu dot org GCC build triplet: x86_64-unknown-linux-gnu GCC host triplet: x86_64-unknown-linux-gnu GCC target triplet: x86_64-unknown-linux-gnu http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22543