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Add incoming value from header only if phi node has any use inside the loop.
[oota-llvm.git]
/
test
/
Transforms
/
SCCP
/
logical-nuke.ll
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; RUN: llvm-as < %s | opt -sccp | llvm-dis | grep {ret i32 0}
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; Test that SCCP has basic knowledge of when and/or nuke overdefined values.
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define i32 @test(i32 %X) {
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%Y = and i32 %X, 0 ; <i32> [#uses=1]
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ret i32 %Y
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}
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