47 lines
1.5 KiB
LLVM
47 lines
1.5 KiB
LLVM
; This test makes sure that these instructions are properly constant propagated.
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; RUN: opt < %s -data-layout="e-p:32:32" -debugify -sccp -S | FileCheck %s
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; RUN: opt < %s -data-layout="E-p:32:32" -debugify -sccp -S | FileCheck %s
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@X = constant i32 42 ; <i32*> [#uses=1]
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@Y = constant [2 x { i32, float }] [ { i32, float } { i32 12, float 1.000000e+00 }, { i32, float } { i32 37, float 0x3FF3B2FEC0000000 } ] ; <[2 x { i32, float }]*> [#uses=2]
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define i32 @test1() {
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; CHECK-LABEL: @test1(
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; CHECK-NEXT: call void @llvm.dbg.value(metadata i32 42
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; CHECK-NEXT: ret
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%B = load i32, i32* @X ; <i32> [#uses=1]
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ret i32 %B
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}
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define float @test2() {
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; CHECK-LABEL: @test2(
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; CHECK-NEXT: call void @llvm.dbg.value(metadata float* getelementptr
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; CHECK-NEXT: call void @llvm.dbg.value(metadata float 0x3FF3B2FEC0000000
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; CHECK-NEXT: ret
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%A = getelementptr [2 x { i32, float }], [2 x { i32, float }]* @Y, i64 0, i64 1, i32 1 ; <float*> [#uses=1]
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%B = load float, float* %A ; <float> [#uses=1]
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ret float %B
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}
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define i32 @test3() {
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; CHECK-LABEL: @test3(
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; CHECK-NEXT: call void @llvm.dbg.value(metadata i32* getelementptr
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; CHECK-NEXT: call void @llvm.dbg.value(metadata i32 12
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; CHECK-NEXT: ret
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%A = getelementptr [2 x { i32, float }], [2 x { i32, float }]* @Y, i64 0, i64 0, i32 0 ; <i32*> [#uses=1]
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%B = load i32, i32* %A
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ret i32 %B
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}
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define i8 @test4() {
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; CHECK-LABEL: @test4(
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; CHECK-NEXT: call void @llvm.dbg.value(metadata i8* bitcast
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; CHECK-NEXT: call void @llvm.dbg.value(metadata i8
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; CHECK-NEXT: ret
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%A = bitcast i32* @X to i8*
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%B = load i8, i8* %A
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ret i8 %B
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}
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