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12 lines
334 B
LLVM
12 lines
334 B
LLVM
; With sub reassociation, constant folding can eliminate the 12 and -12 constants.
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;
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; RUN: llvm-as < %s | opt -reassociate -instcombine | llvm-dis | not grep 12
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define i32 @test(i32 %A, i32 %B) {
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%X = add i32 -12, %A ; <i32> [#uses=1]
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%Y = sub i32 %X, %B ; <i32> [#uses=1]
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%Z = add i32 %Y, 12 ; <i32> [#uses=1]
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ret i32 %Z
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}
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