blob: bd878b04a35034ef4c1361e889e3f46ddd36ae9a [file] [log] [blame]
Dan Gohman72a13d22009-09-08 22:34:10 +00001; RUN: opt < %s -instcombine -S | grep xor | count 4
2; RUN: opt < %s -instcombine -S | not grep and
3; RUN: opt < %s -instcombine -S | not grep { or}
Chris Lattnera8de4cc2007-06-15 05:57:20 +00004
5; PR1510
6
Chris Lattner0ab5e2c2011-04-15 05:18:47 +00007; These are all equivalent to A^B
Chris Lattnera8de4cc2007-06-15 05:57:20 +00008
9define i32 @test1(i32 %a, i32 %b) {
10entry:
11 %tmp3 = or i32 %b, %a ; <i32> [#uses=1]
12 %tmp3not = xor i32 %tmp3, -1 ; <i32> [#uses=1]
13 %tmp6 = and i32 %b, %a ; <i32> [#uses=1]
14 %tmp7 = or i32 %tmp6, %tmp3not ; <i32> [#uses=1]
15 %tmp7not = xor i32 %tmp7, -1 ; <i32> [#uses=1]
16 ret i32 %tmp7not
17}
18
19define i32 @test2(i32 %a, i32 %b) {
20entry:
21 %tmp3 = or i32 %b, %a ; <i32> [#uses=1]
22 %tmp6 = and i32 %b, %a ; <i32> [#uses=1]
23 %tmp6not = xor i32 %tmp6, -1 ; <i32> [#uses=1]
24 %tmp7 = and i32 %tmp3, %tmp6not ; <i32> [#uses=1]
25 ret i32 %tmp7
26}
27
Chris Lattner9923af42007-06-15 06:22:32 +000028define <4 x i32> @test3(<4 x i32> %a, <4 x i32> %b) {
29entry:
30 %tmp3 = or <4 x i32> %a, %b ; <<4 x i32>> [#uses=1]
31 %tmp3not = xor <4 x i32> %tmp3, < i32 -1, i32 -1, i32 -1, i32 -1 > ; <<4 x i32>> [#uses=1]
32 %tmp6 = and <4 x i32> %a, %b ; <<4 x i32>> [#uses=1]
33 %tmp7 = or <4 x i32> %tmp6, %tmp3not ; <<4 x i32>> [#uses=1]
34 %tmp7not = xor <4 x i32> %tmp7, < i32 -1, i32 -1, i32 -1, i32 -1 > ; <<4 x i32>> [#uses=1]
35 ret <4 x i32> %tmp7not
36}
37
38define <4 x i32> @test4(<4 x i32> %a, <4 x i32> %b) {
39entry:
40 %tmp3 = or <4 x i32> %a, %b ; <<4 x i32>> [#uses=1]
41 %tmp6 = and <4 x i32> %a, %b ; <<4 x i32>> [#uses=1]
42 %tmp6not = xor <4 x i32> %tmp6, < i32 -1, i32 -1, i32 -1, i32 -1 > ; <<4 x i32>> [#uses=1]
43 %tmp7 = and <4 x i32> %tmp3, %tmp6not ; <<4 x i32>> [#uses=1]
44 ret <4 x i32> %tmp7
45}
46