1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
2; RUN: opt < %s -passes=sccp -S | FileCheck %s
3
4define i32 @zext_lshr(i1 %t0) {
5; CHECK-LABEL: @zext_lshr(
6; CHECK-NEXT:    [[T1:%.*]] = zext i1 [[T0:%.*]] to i32
7; CHECK-NEXT:    ret i32 0
8;
9  %t1 = zext i1 %t0 to i32
10  %t2 = lshr i32 %t1, 1
11  ret i32 %t2
12}
13
14define i1 @zext_icmp(i1 %t0) {
15; CHECK-LABEL: @zext_icmp(
16; CHECK-NEXT:    [[T1:%.*]] = zext i1 [[T0:%.*]] to i32
17; CHECK-NEXT:    ret i1 false
18;
19  %t1 = zext i1 %t0 to i32
20  %t2 = icmp eq i32 %t1, 2
21  ret i1 %t2
22}
23
24; negative test. SCCP operates poorly with vector ranges
25
26define <2 x i1> @zext_vector(<2 x i1> %t0) {
27; CHECK-LABEL: @zext_vector(
28; CHECK-NEXT:    [[T1:%.*]] = zext <2 x i1> [[T0:%.*]] to <2 x i32>
29; CHECK-NEXT:    [[T2:%.*]] = icmp eq <2 x i32> [[T1]], <i32 2, i32 2>
30; CHECK-NEXT:    ret <2 x i1> [[T2]]
31;
32  %t1 = zext <2 x i1> %t0 to <2 x i32>
33  %t2 = icmp eq <2 x i32> %t1, <i32 2, i32 2>
34  ret <2 x i1> %t2
35}
36
37; negative test. SCCP operates poorly with vector ranges
38
39define <2 x i1> @zext_vector2(<2 x i1> %t0) {
40; CHECK-LABEL: @zext_vector2(
41; CHECK-NEXT:    [[T1:%.*]] = zext <2 x i1> [[T0:%.*]] to <2 x i32>
42; CHECK-NEXT:    [[T2:%.*]] = add <2 x i32> [[T1]], <i32 2, i32 2>
43; CHECK-NEXT:    [[T3:%.*]] = icmp eq <2 x i32> [[T1]], [[T2]]
44; CHECK-NEXT:    ret <2 x i1> [[T3]]
45;
46  %t1 = zext <2 x i1> %t0 to <2 x i32>
47  %t2 = add <2 x i32> %t1, <i32 2, i32 2>
48  %t3 = icmp eq <2 x i32> %t1, %t2
49  ret <2 x i1> %t3
50}
51
52; negative test: %t2 can be replaced by %t1, but SCCP operates by ranges only
53
54define i32 @sext_ashr(i1 %t0) {
55; CHECK-LABEL: @sext_ashr(
56; CHECK-NEXT:    [[T1:%.*]] = sext i1 [[T0:%.*]] to i32
57; CHECK-NEXT:    [[T2:%.*]] = ashr i32 [[T1]], 1
58; CHECK-NEXT:    ret i32 [[T2]]
59;
60  %t1 = sext i1 %t0 to i32
61  %t2 = ashr i32 %t1, 1
62  ret i32 %t2
63}
64
65define i1 @sext_icmp(i1 %t0) {
66; CHECK-LABEL: @sext_icmp(
67; CHECK-NEXT:    [[T1:%.*]] = sext i1 [[T0:%.*]] to i32
68; CHECK-NEXT:    ret i1 false
69;
70  %t1 = sext i1 %t0 to i32
71  %t2 = icmp eq i32 %t1, 2
72  ret i1 %t2
73}
74
75; negative test. SCCP operates poorly with vector ranges
76
77define <2 x i1> @sext_vector(<2 x i1> %t0) {
78; CHECK-LABEL: @sext_vector(
79; CHECK-NEXT:    [[T1:%.*]] = sext <2 x i1> [[T0:%.*]] to <2 x i32>
80; CHECK-NEXT:    [[T2:%.*]] = icmp eq <2 x i32> [[T1]], <i32 2, i32 2>
81; CHECK-NEXT:    ret <2 x i1> [[T2]]
82;
83  %t1 = sext <2 x i1> %t0 to <2 x i32>
84  %t2 = icmp eq <2 x i32> %t1, <i32 2, i32 2>
85  ret <2 x i1> %t2
86}
87
88; negative test. SCCP operates poorly with vector ranges
89
90define <2 x i1> @sext_vector2(<2 x i1> %t0) {
91; CHECK-LABEL: @sext_vector2(
92; CHECK-NEXT:    [[T1:%.*]] = sext <2 x i1> [[T0:%.*]] to <2 x i32>
93; CHECK-NEXT:    [[T2:%.*]] = add <2 x i32> [[T1]], <i32 2, i32 2>
94; CHECK-NEXT:    [[T3:%.*]] = icmp eq <2 x i32> [[T1]], [[T2]]
95; CHECK-NEXT:    ret <2 x i1> [[T3]]
96;
97  %t1 = sext <2 x i1> %t0 to <2 x i32>
98  %t2 = add <2 x i32> %t1, <i32 2, i32 2>
99  %t3 = icmp eq <2 x i32> %t1, %t2
100  ret <2 x i1> %t3
101}
102