http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59277
Richard Biener <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Keywords| |diagnostic Target|X86_64 |x86_64-*-* Status|UNCONFIRMED |NEW Last reconfirmed| |2013-11-25 Ever confirmed|0 |1 Severity|normal |enhancement --- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> --- We still have to follow the ABI. Of course I'd say with -mno-sse you should get a fatal_error () whenever you run into an ABI piece that requires SSE registers (instead of silently using them). We may have one or more (near) duplicates of this bug.