diff options
Diffstat (limited to 'llvm/test/CodeGen/X86/fp-fold.ll')
| -rw-r--r-- | llvm/test/CodeGen/X86/fp-fold.ll | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/X86/fp-fold.ll b/llvm/test/CodeGen/X86/fp-fold.ll index b8e30a4ce42..d3d965b95b0 100644 --- a/llvm/test/CodeGen/X86/fp-fold.ll +++ b/llvm/test/CodeGen/X86/fp-fold.ll @@ -88,6 +88,19 @@ define float @fsub_neg_x_y(float %x, float %y) { ret float %r } +define float @fsub_neg_y(float %x, float %y) { +; UNSAFE-LABEL: fsub_neg_y: +; UNSAFE: # %bb.0: +; UNSAFE-NEXT: mulss {{.*}}(%rip), %xmm0 +; UNSAFE-NEXT: subss %xmm1, %xmm0 +; UNSAFE-NEXT: addss %xmm1, %xmm0 +; UNSAFE-NEXT: retq + %mul = fmul float %x, 5.000000e+00 + %add = fadd float %mul, %y + %r = fsub nsz reassoc float %y, %add + ret float %r +} + define float @fsub_negzero(float %x) { ; STRICT-LABEL: fsub_negzero: ; STRICT: # %bb.0: |
