1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
2; RUN: opt < %s -passes=ipsccp -S | FileCheck %s
3
4declare void @use(i1)
5declare i32 @get_i32()
6
7define void @load_range(i32* %p) {
8; CHECK-LABEL: @load_range(
9; CHECK-NEXT:    [[V:%.*]] = load i32, i32* [[P:%.*]], align 4, !range !0
10; CHECK-NEXT:    call void @use(i1 true)
11; CHECK-NEXT:    [[C2:%.*]] = icmp ult i32 [[V]], 9
12; CHECK-NEXT:    call void @use(i1 [[C2]])
13; CHECK-NEXT:    call void @use(i1 false)
14; CHECK-NEXT:    [[C4:%.*]] = icmp ugt i32 [[V]], 8
15; CHECK-NEXT:    call void @use(i1 [[C4]])
16; CHECK-NEXT:    ret void
17;
18  %v = load i32, i32* %p, !range !{i32 0, i32 10}
19  %c1 = icmp ult i32 %v, 10
20  call void @use(i1 %c1)
21  %c2 = icmp ult i32 %v, 9
22  call void @use(i1 %c2)
23  %c3 = icmp ugt i32 %v, 9
24  call void @use(i1 %c3)
25  %c4 = icmp ugt i32 %v, 8
26  call void @use(i1 %c4)
27  ret void
28}
29
30define i32 @load_range_single(i32* %p) {
31; CHECK-LABEL: @load_range_single(
32; CHECK-NEXT:    ret i32 0
33;
34  %v = load i32, i32* %p, !range !{i32 0, i32 1}
35  ret i32 %v
36}
37
38define i32 @load_range_single_volatile(i32* %p) {
39; CHECK-LABEL: @load_range_single_volatile(
40; CHECK-NEXT:    [[V:%.*]] = load volatile i32, i32* [[P:%.*]], align 4, !range !1
41; CHECK-NEXT:    ret i32 [[V]]
42;
43  %v = load volatile i32, i32* %p, !range !{i32 0, i32 1}
44  ret i32 %v
45}
46
47define void @load_nonnull(i32** %p, i32** %p2) {
48; CHECK-LABEL: @load_nonnull(
49; CHECK-NEXT:    [[V:%.*]] = load i32*, i32** [[P:%.*]], align 8, !nonnull !2
50; CHECK-NEXT:    [[V2:%.*]] = load i32*, i32** [[P2:%.*]], align 8, !nonnull !2
51; CHECK-NEXT:    call void @use(i1 true)
52; CHECK-NEXT:    call void @use(i1 false)
53; CHECK-NEXT:    call void @use(i1 true)
54; CHECK-NEXT:    call void @use(i1 false)
55; CHECK-NEXT:    [[C5:%.*]] = icmp eq i32* [[V]], [[V2]]
56; CHECK-NEXT:    call void @use(i1 [[C5]])
57; CHECK-NEXT:    [[C6:%.*]] = icmp ne i32* [[V]], [[V2]]
58; CHECK-NEXT:    call void @use(i1 [[C6]])
59; CHECK-NEXT:    ret void
60;
61  %v = load i32*, i32** %p, !nonnull !{}
62  %v2 = load i32*, i32** %p2, !nonnull !{}
63  %c1 = icmp ne i32* %v, null
64  call void @use(i1 %c1)
65  %c2 = icmp eq i32* %v, null
66  call void @use(i1 %c2)
67  %c3 = icmp ne i32* null, %v
68  call void @use(i1 %c3)
69  %c4 = icmp eq i32* null, %v
70  call void @use(i1 %c4)
71  ; There is no particular relationship between two nonnull values.
72  %c5 = icmp eq i32* %v, %v2
73  call void @use(i1 %c5)
74  %c6 = icmp ne i32* %v, %v2
75  call void @use(i1 %c6)
76  ret void
77}
78
79define void @call_range(i32* %p) {
80; CHECK-LABEL: @call_range(
81; CHECK-NEXT:    [[V:%.*]] = call i32 @get_i32(), !range !0
82; CHECK-NEXT:    call void @use(i1 true)
83; CHECK-NEXT:    [[C2:%.*]] = icmp ult i32 [[V]], 9
84; CHECK-NEXT:    call void @use(i1 [[C2]])
85; CHECK-NEXT:    call void @use(i1 false)
86; CHECK-NEXT:    [[C4:%.*]] = icmp ugt i32 [[V]], 8
87; CHECK-NEXT:    call void @use(i1 [[C4]])
88; CHECK-NEXT:    ret void
89;
90  %v = call i32 @get_i32(), !range !{i32 0, i32 10}
91  %c1 = icmp ult i32 %v, 10
92  call void @use(i1 %c1)
93  %c2 = icmp ult i32 %v, 9
94  call void @use(i1 %c2)
95  %c3 = icmp ugt i32 %v, 9
96  call void @use(i1 %c3)
97  %c4 = icmp ugt i32 %v, 8
98  call void @use(i1 %c4)
99  ret void
100}
101
102define internal i1 @ip_cmp_range(i32 %v) {
103; CHECK-LABEL: @ip_cmp_range(
104; CHECK-NEXT:    ret i1 undef
105;
106  %c = icmp ult i32 %v, 10
107  ret i1 %c
108}
109
110define i1 @ip_load_range(i32* %p) {
111; CHECK-LABEL: @ip_load_range(
112; CHECK-NEXT:    [[V:%.*]] = load i32, i32* [[P:%.*]], align 4, !range !0
113; CHECK-NEXT:    [[C:%.*]] = call i1 @ip_cmp_range(i32 [[V]])
114; CHECK-NEXT:    ret i1 true
115;
116  %v = load i32, i32* %p, !range !{i32 0, i32 10}
117  %c = call i1 @ip_cmp_range(i32 %v)
118  ret i1 %c
119}
120