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