47 lines
1.8 KiB
LLVM
47 lines
1.8 KiB
LLVM
; RUN: opt < %s -instcombine -S | grep xor | count 4
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; RUN: opt < %s -instcombine -S | not grep and
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; RUN: opt < %s -instcombine -S | not grep { or}
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; PR1510
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; These are all equivalent to A^B
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define i32 @test1(i32 %a, i32 %b) {
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entry:
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%tmp3 = or i32 %b, %a ; <i32> [#uses=1]
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%tmp3not = xor i32 %tmp3, -1 ; <i32> [#uses=1]
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%tmp6 = and i32 %b, %a ; <i32> [#uses=1]
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%tmp7 = or i32 %tmp6, %tmp3not ; <i32> [#uses=1]
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%tmp7not = xor i32 %tmp7, -1 ; <i32> [#uses=1]
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ret i32 %tmp7not
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}
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define i32 @test2(i32 %a, i32 %b) {
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entry:
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%tmp3 = or i32 %b, %a ; <i32> [#uses=1]
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%tmp6 = and i32 %b, %a ; <i32> [#uses=1]
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%tmp6not = xor i32 %tmp6, -1 ; <i32> [#uses=1]
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%tmp7 = and i32 %tmp3, %tmp6not ; <i32> [#uses=1]
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ret i32 %tmp7
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}
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define <4 x i32> @test3(<4 x i32> %a, <4 x i32> %b) {
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entry:
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%tmp3 = or <4 x i32> %a, %b ; <<4 x i32>> [#uses=1]
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%tmp3not = xor <4 x i32> %tmp3, < i32 -1, i32 -1, i32 -1, i32 -1 > ; <<4 x i32>> [#uses=1]
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%tmp6 = and <4 x i32> %a, %b ; <<4 x i32>> [#uses=1]
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%tmp7 = or <4 x i32> %tmp6, %tmp3not ; <<4 x i32>> [#uses=1]
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%tmp7not = xor <4 x i32> %tmp7, < i32 -1, i32 -1, i32 -1, i32 -1 > ; <<4 x i32>> [#uses=1]
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ret <4 x i32> %tmp7not
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}
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define <4 x i32> @test4(<4 x i32> %a, <4 x i32> %b) {
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entry:
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%tmp3 = or <4 x i32> %a, %b ; <<4 x i32>> [#uses=1]
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%tmp6 = and <4 x i32> %a, %b ; <<4 x i32>> [#uses=1]
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%tmp6not = xor <4 x i32> %tmp6, < i32 -1, i32 -1, i32 -1, i32 -1 > ; <<4 x i32>> [#uses=1]
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%tmp7 = and <4 x i32> %tmp3, %tmp6not ; <<4 x i32>> [#uses=1]
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ret <4 x i32> %tmp7
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}
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