|  | ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py | 
|  | ; RUN: llc < %s -mtriple=x86_64-apple-darwin10 | FileCheck %s | 
|  |  | 
|  | ; Make sure we don't crash because we negated an fma when we didn't have any fma instructions. | 
|  |  | 
|  | define float @pr36553(float %a, float %b, float %c) nounwind { | 
|  | ; CHECK-LABEL: pr36553: | 
|  | ; CHECK:       ## %bb.0: ## %entry | 
|  | ; CHECK-NEXT:    pushq %rax | 
|  | ; CHECK-NEXT:    callq _fmaf | 
|  | ; CHECK-NEXT:    xorps {{.*}}(%rip), %xmm0 | 
|  | ; CHECK-NEXT:    popq %rax | 
|  | ; CHECK-NEXT:    retq | 
|  | entry: | 
|  | %0 = tail call float @llvm.fma.f32(float %a, float %b, float %c) | 
|  | %sub = fsub float -0.000000e+00, %0 | 
|  | ret float %sub | 
|  | } | 
|  |  | 
|  | declare float @llvm.fma.f32(float, float, float) |