| ; RUN: opt < %s -instcombine -S | FileCheck %s |
| |
| ; PR1510 |
| |
| ; These are all equivalent to A^B |
| |
| define i32 @test1(i32 %a, i32 %b) { |
| %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 |
| |
| ; CHECK-LABEL: @test1( |
| ; CHECK-NEXT: [[TMP7NOT:%.*]] = xor i32 %b, %a |
| ; CHECK-NEXT: ret i32 [[TMP7NOT]] |
| } |
| |
| define i32 @test2(i32 %a, i32 %b) { |
| %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 |
| |
| ; CHECK-LABEL: @test2( |
| ; CHECK-NEXT: [[TMP7:%.*]] = xor i32 %b, %a |
| ; CHECK-NEXT: ret i32 [[TMP7]] |
| } |
| |
| define <4 x i32> @test3(<4 x i32> %a, <4 x i32> %b) { |
| %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 |
| |
| ; CHECK-LABEL: @test3( |
| ; CHECK-NEXT: [[TMP7NOT:%.*]] = xor <4 x i32> %a, %b |
| ; CHECK-NEXT: ret <4 x i32> [[TMP7NOT]] |
| } |
| |
| define <4 x i32> @test4(<4 x i32> %a, <4 x i32> %b) { |
| %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 |
| |
| ; CHECK-LABEL: @test4( |
| ; CHECK-NEXT: [[TMP7:%.*]] = xor <4 x i32> %a, %b |
| ; CHECK-NEXT: ret <4 x i32> [[TMP7]] |
| } |
| |