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