forked from OSchip/llvm-project
40 lines
1.0 KiB
LLVM
40 lines
1.0 KiB
LLVM
; RUN: opt < %s -instcombine -S | grep "and i32 %a, 1" | count 4
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; RUN: opt < %s -instcombine -S | grep "or i32 %0, %b" | count 4
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define i32 @func1(i32 %a, i32 %b) nounwind readnone {
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entry:
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%0 = or i32 %b, %a ; <i32> [#uses=1]
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%1 = and i32 %0, 1 ; <i32> [#uses=1]
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%2 = and i32 %b, -2 ; <i32> [#uses=1]
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%3 = or i32 %1, %2 ; <i32> [#uses=1]
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ret i32 %3
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}
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define i32 @func2(i32 %a, i32 %b) nounwind readnone {
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entry:
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%0 = or i32 %a, %b ; <i32> [#uses=1]
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%1 = and i32 1, %0 ; <i32> [#uses=1]
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%2 = and i32 -2, %b ; <i32> [#uses=1]
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%3 = or i32 %1, %2 ; <i32> [#uses=1]
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ret i32 %3
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}
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define i32 @func3(i32 %a, i32 %b) nounwind readnone {
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entry:
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%0 = or i32 %b, %a ; <i32> [#uses=1]
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%1 = and i32 %0, 1 ; <i32> [#uses=1]
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%2 = and i32 %b, -2 ; <i32> [#uses=1]
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%3 = or i32 %2, %1 ; <i32> [#uses=1]
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ret i32 %3
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}
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define i32 @func4(i32 %a, i32 %b) nounwind readnone {
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entry:
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%0 = or i32 %a, %b ; <i32> [#uses=1]
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%1 = and i32 1, %0 ; <i32> [#uses=1]
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%2 = and i32 -2, %b ; <i32> [#uses=1]
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%3 = or i32 %2, %1 ; <i32> [#uses=1]
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ret i32 %3
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}
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