14 lines
543 B
LLVM
14 lines
543 B
LLVM
; Test to make sure malloc's bitcast does not block detection of a store
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; to aliased memory; GVN should not optimize away the load in this program.
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; RUN: opt < %s -passes=newgvn -S | FileCheck %s
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define i64 @test() {
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%1 = tail call ptr @malloc(i64 mul (i64 4, i64 ptrtoint (ptr getelementptr (i64, ptr null, i64 1) to i64))) ; <ptr> [#uses=2]
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store i8 42, ptr %1
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%Y = load i64, ptr %1 ; <i64> [#uses=1]
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ret i64 %Y
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; CHECK: %Y = load i64, ptr %1
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; CHECK: ret i64 %Y
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}
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declare noalias ptr @malloc(i64)
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