http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47892
--- Comment #3 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-02-25 10:24:21 UTC --- Testcase: #define PIO6 0.523598776f #define SA5 2.74201854577e-06f #define SA4 -1.98410347969e-04f #define SA3 8.33333320429e-03f #define SA2 -1.66666666666e-01f void bestseries9(float * __restrict__ arr,int len) { int i; for(i=0; i<len; i++) { float or=arr[i]; float orig=or / 3*(or>PIO6); float sqr=orig*orig; arr[i]=orig*(1+sqr*(SA2+sqr*(SA3+sqr*(SA4+SA5*sqr)))); arr[i]=arr[i]*(1+(or>PIO6)*(2-4*arr[i]*arr[i])); } }