On powerpc-* gcc.dg/vmx/bug-2.c fails at -O3 -g or -O3 -fomit-frame-pointer with /opt/gcc/gcc-4.5-work/gcc/testsuite/gcc.dg/vmx/bug-2.c:24:1: internal compiler error: in build_int_cst_wide, at tree.c:1140 (see http://gcc.gnu.org/ml/gcc-testresults/2009-08/msg02395.html , http://gcc.gnu.org/ml/gcc-testresults/2009-08/msg02349.html or http://gcc.gnu.org/ml/gcc-testresults/2009-08/msg01143.html ).
I should have looked for a bug report before filing a new bug report. Anyways this has been since fixed. *** This bug has been marked as a duplicate of 41661 ***