File: fold-intrinsics.ll

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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -passes=instsimplify -S | FileCheck %s

declare float @llvm.powi.f32.i16(float, i16) nounwind readonly
declare double @llvm.powi.f64.i32(double, i32) nounwind readonly
declare i32 @llvm.bswap.i32(i32)

; A
define i32 @test_bswap(i32 %a) nounwind {
; CHECK-LABEL: @test_bswap(
; CHECK-NEXT:    ret i32 [[A:%.*]]
;
  %tmp2 = tail call i32 @llvm.bswap.i32( i32 %a )
  %tmp4 = tail call i32 @llvm.bswap.i32( i32 %tmp2 )
  ret i32 %tmp4
}

define void @powi(double %V, ptr%P) {
; CHECK-LABEL: @powi(
; CHECK-NEXT:    store volatile double 1.000000e+00, ptr [[P:%.*]], align 8
; CHECK-NEXT:    store volatile double [[V:%.*]], ptr [[P]], align 8
; CHECK-NEXT:    ret void
;
  %B = tail call double @llvm.powi.f64.i32(double %V, i32 0) nounwind
  store volatile double %B, ptr %P

  %C = tail call double @llvm.powi.f64.i32(double %V, i32 1) nounwind
  store volatile double %C, ptr %P

  ret void
}

define void @powi_i16(float %V, ptr%P) {
; CHECK-LABEL: @powi_i16(
; CHECK-NEXT:    store volatile float 1.000000e+00, ptr [[P:%.*]], align 4
; CHECK-NEXT:    store volatile float [[V:%.*]], ptr [[P]], align 4
; CHECK-NEXT:    ret void
;
  %B = tail call float @llvm.powi.f32.i16(float %V, i16 0) nounwind
  store volatile float %B, ptr %P

  %C = tail call float @llvm.powi.f32.i16(float %V, i16 1) nounwind
  store volatile float %C, ptr %P

  ret void
}