https://gcc.gnu.org/bugzilla/show_bug.cgi?id=50414 Bug 50414 depends on bug 63379, which changed state.
Bug 63379 Summary: [4.8 Regression] Incorrect vectorization when enabling SSE and O3, initialises loop with wrong value https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63379 What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |RESOLVED Resolution|--- |FIXED