Hi, https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65546 identifies a failure in gcc.dg/vect/costmodel/ppc/costmodel-vect-31a.c. The test case hasn't kept up with changes in the vectorizer, so it's looking for the wrong error message. Also, the error message should be conditioned by a check for support of unaligned memory accesses. This patch corrects these problems.
For 4.9 and 5, the error message needs to be similarly changed. However, for these earlier releases, the check for misalignment support doesn't apply. Verified on powerpc64le-unknown-linux-gnu for both -mcpu=power7 and -mcpu=power8, which differ in their support for misalignment. Is this ok for trunk? Provided verification succeeds on 4.9 and 5, is the revised test ok for those releases? Thanks, Bill 2016-01-28 Bill Schmidt <wschm...@linux.vnet.ibm.com> PR target/65546 * gcc.dg/vect/costmodel/ppc/costmodel-vect-31a.c: Correct condition being checked, and disable it when the target supports misaligned loads and stores. Index: gcc/testsuite/gcc.dg/vect/costmodel/ppc/costmodel-vect-31a.c =================================================================== --- gcc/testsuite/gcc.dg/vect/costmodel/ppc/costmodel-vect-31a.c (revision 232890) +++ gcc/testsuite/gcc.dg/vect/costmodel/ppc/costmodel-vect-31a.c (working copy) @@ -46,5 +46,5 @@ int main (void) return main1 (); } -/* { dg-final { scan-tree-dump-times "vectorization not profitable" 1 "vect" } } */ +/* { dg-final { scan-tree-dump-times "not vectorized: unsupported unaligned store" 1 "vect" { target { ! vect_hw_misalign } } } } */ /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 0 "vect" { target { ! vect_hw_misalign } } } } */