1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
2; RUN: opt < %s -instcombine -S | FileCheck %s
3
4define i64 @test_sext_zext(i16 %A) {
5; CHECK-LABEL: @test_sext_zext(
6; CHECK-NEXT:    [[C2:%.*]] = zext i16 %A to i64
7; CHECK-NEXT:    ret i64 [[C2]]
8;
9  %c1 = zext i16 %A to i32
10  %c2 = sext i32 %c1 to i64
11  ret i64 %c2
12}
13
14define <2 x i64> @test2(<2 x i1> %A) {
15; CHECK-LABEL: @test2(
16; CHECK-NEXT:    [[TMP1:%.*]] = zext <2 x i1> %A to <2 x i64>
17; CHECK-NEXT:    [[ZEXT:%.*]] = xor <2 x i64> [[TMP1]], <i64 1, i64 1>
18; CHECK-NEXT:    ret <2 x i64> [[ZEXT]]
19;
20  %xor = xor <2 x i1> %A, <i1 true, i1 true>
21  %zext = zext <2 x i1> %xor to <2 x i64>
22  ret <2 x i64> %zext
23}
24
25define <2 x i64> @test3(<2 x i64> %A) {
26; CHECK-LABEL: @test3(
27; CHECK-NEXT:    [[AND:%.*]] = and <2 x i64> %A, <i64 23, i64 42>
28; CHECK-NEXT:    ret <2 x i64> [[AND]]
29;
30  %trunc = trunc <2 x i64> %A to <2 x i32>
31  %and = and <2 x i32> %trunc, <i32 23, i32 42>
32  %zext = zext <2 x i32> %and to <2 x i64>
33  ret <2 x i64> %zext
34}
35
36define <2 x i64> @test4(<2 x i64> %A) {
37; CHECK-LABEL: @test4(
38; CHECK-NEXT:    [[TMP1:%.*]] = xor <2 x i64> %A, <i64 4294967295, i64 4294967295>
39; CHECK-NEXT:    [[XOR:%.*]] = and <2 x i64> [[TMP1]], <i64 23, i64 42>
40; CHECK-NEXT:    ret <2 x i64> [[XOR]]
41;
42  %trunc = trunc <2 x i64> %A to <2 x i32>
43  %and = and <2 x i32> %trunc, <i32 23, i32 42>
44  %xor = xor <2 x i32> %and, <i32 23, i32 42>
45  %zext = zext <2 x i32> %xor to <2 x i64>
46  ret <2 x i64> %zext
47}
48
49; FIXME: If the xor was done in the smaller type, the back-to-back zexts would get combined.
50
51define i64 @fold_xor_zext_sandwich(i1 %a) {
52; CHECK-LABEL: @fold_xor_zext_sandwich(
53; CHECK-NEXT:    [[ZEXT1:%.*]] = zext i1 %a to i32
54; CHECK-NEXT:    [[XOR:%.*]] = xor i32 [[ZEXT1]], 1
55; CHECK-NEXT:    [[ZEXT2:%.*]] = zext i32 [[XOR]] to i64
56; CHECK-NEXT:    ret i64 [[ZEXT2]]
57;
58  %zext1 = zext i1 %a to i32
59  %xor = xor i32 %zext1, 1
60  %zext2 = zext i32 %xor to i64
61  ret i64 %zext2
62}
63
64define <2 x i64> @fold_xor_zext_sandwich_vec(<2 x i1> %a) {
65; CHECK-LABEL: @fold_xor_zext_sandwich_vec(
66; CHECK-NEXT:    [[ZEXT1:%.*]] = zext <2 x i1> %a to <2 x i64>
67; CHECK-NEXT:    [[XOR:%.*]] = xor <2 x i64> [[ZEXT1]], <i64 1, i64 1>
68; CHECK-NEXT:    ret <2 x i64> [[XOR]]
69;
70  %zext1 = zext <2 x i1> %a to <2 x i32>
71  %xor = xor <2 x i32> %zext1, <i32 1, i32 1>
72  %zext2 = zext <2 x i32> %xor to <2 x i64>
73  ret <2 x i64> %zext2
74}
75
76