| ; RUN: opt < %s -instcombine -S | FileCheck %s |
| ; This test makes sure that the undef is propagated for the cos instrinsic |
| |
| declare double @llvm.cos.f64(double %Val) |
| declare float @llvm.cos.f32(float %Val) |
| |
| ; Function Attrs: nounwind readnone |
| define double @test1() { |
| ; CHECK-LABEL: define double @test1( |
| ; CHECK-NEXT: ret double 0.000000e+00 |
| %1 = call double @llvm.cos.f64(double undef) |
| ret double %1 |
| } |
| |
| |
| ; Function Attrs: nounwind readnone |
| define float @test2(float %d) { |
| ; CHECK-LABEL: define float @test2( |
| ; CHECK-NEXT: %cosval = call float @llvm.cos.f32(float %d) |
| %cosval = call float @llvm.cos.f32(float %d) |
| %cosval2 = call float @llvm.cos.f32(float undef) |
| %fsum = fadd float %cosval2, %cosval |
| ret float %fsum |
| ; CHECK-NEXT: %fsum |
| ; CHECK: ret float %fsum |
| } |