The vectorizer cannot vectorize if-converted COND_EXPRs with V8SF or V4DF types because the backend does not provide patterns for this.
-- Summary: vcond<> not supported for AVX float modes Product: gcc Version: 4.5.0 Status: UNCONFIRMED Keywords: missed-optimization Severity: enhancement Priority: P3 Component: target AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: rguenth at gcc dot gnu dot org GCC target triplet: x86_64-*-* i?86-*-* http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43152