forked from OSchip/llvm-project
28 lines
729 B
LLVM
28 lines
729 B
LLVM
; RUN: opt < %s -instsimplify -S | FileCheck %s
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declare double @llvm.powi.f64(double, i32) nounwind readonly
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declare i32 @llvm.bswap.i32(i32)
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; A
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define i32 @test_bswap(i32 %a) nounwind {
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; CHECK-LABEL: @test_bswap(
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; CHECK-NEXT: ret i32 %a
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;
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%tmp2 = tail call i32 @llvm.bswap.i32( i32 %a )
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%tmp4 = tail call i32 @llvm.bswap.i32( i32 %tmp2 )
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ret i32 %tmp4
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}
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define void @powi(double %V, double *%P) {
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%B = tail call double @llvm.powi.f64(double %V, i32 0) nounwind
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store volatile double %B, double* %P
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%C = tail call double @llvm.powi.f64(double %V, i32 1) nounwind
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store volatile double %C, double* %P
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ret void
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; CHECK-LABEL: @powi(
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; CHECK: store volatile double 1.0
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; CHECK: store volatile double %V
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}
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