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e78760e179
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8558 91177308-0d34-0410-b5e6-96231b3b80d8
26 lines
448 B
LLVM
26 lines
448 B
LLVM
; This testcase ensures that redundant loads are preserved when they are not
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; allowed to be eliminated.
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; RUN: llvm-as < %s | opt -load-vn -gcse | llvm-dis | grep sub
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;
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int %test1(int* %P) {
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%A = load int* %P
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store int 1, int* %P
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%B = load int* %P
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%C = sub int %A, %B
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ret int %C
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}
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int %test2(int* %P) {
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%A = load int* %P
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br label %BB2
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BB2:
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store int 5, int* %P
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br label %BB3
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BB3:
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%B = load int* %P
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%C = sub int %A, %B
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ret int %C
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}
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