1; This test makes sure that xor instructions are properly eliminated.
2; This test is for Integer BitWidth > 64 && BitWidth <= 1024.
3
4; RUN: opt < %s -instcombine -S | not grep "xor "
5; END.
6
7
8define i447 @test1(i447 %A, i447 %B) {
9        ;; (A & C1)^(B & C2) -> (A & C1)|(B & C2) iff C1&C2 == 0
10        %A1 = and i447 %A, 70368744177664
11        %B1 = and i447 %B, 70368744177663
12        %C1 = xor i447 %A1, %B1
13        ret i447 %C1
14}
15
16define i1005 @test2(i1005 %x) {
17        %tmp.2 = xor i1005 %x, 0
18        ret i1005 %tmp.2
19}
20
21define i123 @test3(i123 %x) {
22        %tmp.2 = xor i123 %x, %x
23        ret i123 %tmp.2
24}
25
26define i737 @test4(i737 %x) {
27        ; x ^ ~x == -1
28        %NotX = xor i737 -1, %x
29        %B = xor i737 %x, %NotX
30        ret i737 %B
31}
32
33define i700 @test5(i700 %A) {
34        ;; (A|B)^B == A & (~B)
35        %t1 = or i700 %A, 288230376151711743
36        %r = xor i700 %t1, 288230376151711743
37        ret i700 %r
38}
39
40define i77 @test6(i77 %A) {
41        %t1 = xor i77 %A, 23
42        %r = xor i77 %t1, 23
43        ret i77 %r
44}
45
46define i1023 @test7(i1023 %A) {
47        ;; (A | C1) ^ C2 -> (A | C1) & ~C2 iff (C1&C2) == C2
48        %B1 = or i1023 %A,   70368744177663
49        %C1 = xor i1023 %B1, 703687463
50        ret i1023 %C1
51}
52