15 lines
397 B
LLVM
15 lines
397 B
LLVM
; RUN: opt < %s -basic-aa -gvn -instcombine -S | FileCheck %s
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; BasicAA was incorrectly concluding that P1 and P2 didn't conflict!
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define i32 @test(i32 *%Ptr, i64 %V) {
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; CHECK: sub i32 %X, %Y
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%P2 = getelementptr i32, i32* %Ptr, i64 1
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%P1 = getelementptr i32, i32* %Ptr, i64 %V
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%X = load i32, i32* %P1
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store i32 5, i32* %P2
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%Y = load i32, i32* %P1
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%Z = sub i32 %X, %Y
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ret i32 %Z
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}
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