https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53947 Bug 53947 depends on bug 106902, which changed state.
Bug 106902 Summary: [11/12/13 Regression] Program compiled with -O3 -mfma produces different result https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106902 What |Removed |Added ---------------------------------------------------------------------------- Status|RESOLVED |NEW Resolution|INVALID |---