1; RUN: opt < %s -instsimplify -S | FileCheck %s
2
3declare float @llvm.powi.f32.i16(float, i16) nounwind readonly
4declare double @llvm.powi.f64.i32(double, i32) nounwind readonly
5declare i32 @llvm.bswap.i32(i32)
6
7; A
8define i32 @test_bswap(i32 %a) nounwind {
9; CHECK-LABEL: @test_bswap(
10; CHECK-NEXT:    ret i32 %a
11;
12  %tmp2 = tail call i32 @llvm.bswap.i32( i32 %a )
13  %tmp4 = tail call i32 @llvm.bswap.i32( i32 %tmp2 )
14  ret i32 %tmp4
15}
16
17define void @powi(double %V, double *%P) {
18  %B = tail call double @llvm.powi.f64.i32(double %V, i32 0) nounwind
19  store volatile double %B, double* %P
20
21  %C = tail call double @llvm.powi.f64.i32(double %V, i32 1) nounwind
22  store volatile double %C, double* %P
23
24  ret void
25; CHECK-LABEL: @powi(
26; CHECK: store volatile double 1.0
27; CHECK: store volatile double %V
28}
29
30define void @powi_i16(float %V, float *%P) {
31  %B = tail call float @llvm.powi.f32.i16(float %V, i16 0) nounwind
32  store volatile float %B, float* %P
33
34  %C = tail call float @llvm.powi.f32.i16(float %V, i16 1) nounwind
35  store volatile float %C, float* %P
36
37  ret void
38; CHECK-LABEL: @powi_i16(
39; CHECK: store volatile float 1.0
40; CHECK: store volatile float %V
41}
42