diff options
Diffstat (limited to 'llvm/test/Transforms/SCCP/loadtest.ll')
| -rw-r--r-- | llvm/test/Transforms/SCCP/loadtest.ll | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/llvm/test/Transforms/SCCP/loadtest.ll b/llvm/test/Transforms/SCCP/loadtest.ll new file mode 100644 index 00000000000..baaad94b0cc --- /dev/null +++ b/llvm/test/Transforms/SCCP/loadtest.ll @@ -0,0 +1,46 @@ +; This test makes sure that these instructions are properly constant propagated. + +; RUN: opt < %s -data-layout="e-p:32:32" -debugify -sccp -S | FileCheck %s +; RUN: opt < %s -data-layout="E-p:32:32" -debugify -sccp -S | FileCheck %s + +@X = constant i32 42 ; <i32*> [#uses=1] +@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] + +define i32 @test1() { +; CHECK-LABEL: @test1( +; CHECK-NEXT: call void @llvm.dbg.value(metadata i32 42 +; CHECK-NEXT: ret + %B = load i32, i32* @X ; <i32> [#uses=1] + ret i32 %B +} + +define float @test2() { +; CHECK-LABEL: @test2( +; CHECK-NEXT: call void @llvm.dbg.value(metadata float* getelementptr +; CHECK-NEXT: call void @llvm.dbg.value(metadata float 0x3FF3B2FEC0000000 +; CHECK-NEXT: ret + %A = getelementptr [2 x { i32, float }], [2 x { i32, float }]* @Y, i64 0, i64 1, i32 1 ; <float*> [#uses=1] + %B = load float, float* %A ; <float> [#uses=1] + ret float %B +} + +define i32 @test3() { +; CHECK-LABEL: @test3( +; CHECK-NEXT: call void @llvm.dbg.value(metadata i32* getelementptr +; CHECK-NEXT: call void @llvm.dbg.value(metadata i32 12 +; CHECK-NEXT: ret + %A = getelementptr [2 x { i32, float }], [2 x { i32, float }]* @Y, i64 0, i64 0, i32 0 ; <i32*> [#uses=1] + %B = load i32, i32* %A + ret i32 %B +} + +define i8 @test4() { +; CHECK-LABEL: @test4( +; CHECK-NEXT: call void @llvm.dbg.value(metadata i8* bitcast +; CHECK-NEXT: call void @llvm.dbg.value(metadata i8 +; CHECK-NEXT: ret + %A = bitcast i32* @X to i8* + %B = load i8, i8* %A + ret i8 %B +} + |
