Hi! I've noticed that this testcase fails on i686-linux. The problem is that the vect.exp infrastructure is terrible and dg-options overrides all the required flags. So, vect/ testcases either don't have to have explicit options at all (and the way to express options is through magic naming of the tests), or one can use dg-additional-options. But, in this case you just want to pass the defaults.
Regtested on x86_64-linux and i686-linux, ok for trunk? 2013-10-22 Jakub Jelinek <ja...@redhat.com> * gcc.dg/vect/pr58508.c: Remove dg-options. --- gcc/testsuite/gcc.dg/vect/pr58508.c.jj 2013-10-21 09:00:49.000000000 +0200 +++ gcc/testsuite/gcc.dg/vect/pr58508.c 2013-10-22 14:21:16.064261179 +0200 @@ -1,5 +1,4 @@ /* { dg-do compile } */ -/* { dg-options "-O2 -ftree-vectorize -fdump-tree-vect-details" } */ /* The GCC vectorizer generates loop versioning for the following loop Jakub