Hello! As pointed out by Richi in PR56253 [1], we should enable standard vector-mode FMA patterns also for !TARGET_SSE_MATH, otherwise various transformations (convert_mult_to_fma) can't convert to a vectorized FMA. 2013-02-08 Uros Bizjak * config/i386/sse.md (FMAMODEM): New mode iterator. (fma4, fms4, fnma4, fnms4): Use FMAMODEM mode iterator. Do not use TARGET_SSE_MATH in insn constraint. Tested on x86_64-pc-linux-gnu {,-m32}, committed to mainline SVN. Will be committed to 4.7 branch. [1] http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56253 Uros.