1 ; RUN: llc < %s -march=x86 -mattr=+sse4.1 -o %t 2 ; RUN: grep xorps %t | count 1 3 4 ; Test that when we don't -enable-unsafe-fp-math, we don't do the optimization 5 ; -0 - (A - B) to (B - A) because A==B, -0 != 0 6 7 define float @negfp(float %a, float %b) { 8 entry: 9 %sub = fsub float %a, %b ; <float> [#uses=1] 10 %neg = fsub float -0.000000e+00, %sub ; <float> [#uses=1] 11 ret float %neg 12 } 13
