1; RUN: opt -basic-aa -print-alias-sets -S -o - < %s 2>&1 | FileCheck %s
2
3; CHECK: Alias sets for function 'test1':
4; CHECK: Alias Set Tracker: 2 alias sets for 2 pointer values.
5; CHECK:   AliasSet[0x{{[0-9a-f]+}}, 1] must alias, Mod       Pointers: (i8* %a, LocationSize::precise(1))
6; CHECK-NOT: 1 Unknown instruction
7; CHECK:   AliasSet[0x{{[0-9a-f]+}}, 1] must alias, Mod       Pointers: (i8* %b, LocationSize::precise(1))
8define void @test1(i32 %c) {
9entry:
10  %a = alloca i8, align 1
11  %b = alloca i8, align 1
12  store i8 1, i8* %a, align 1
13  %cond1 = icmp ne i32 %c, 0
14  call void @llvm.assume(i1 %cond1)
15  store i8 1, i8* %b, align 1
16  ret void
17}
18
19; CHECK: Alias sets for function 'test2':
20; CHECK: Alias Set Tracker: 3 alias sets for 2 pointer values.
21; CHECK:   AliasSet[0x{{[0-9a-f]+}}, 1] must alias, Mod       Pointers: (i8* %a, LocationSize::precise(1))
22; CHECK:   AliasSet[0x{{[0-9a-f]+}}, 1] may alias, Ref
23; CHECK:     1 Unknown instructions:   call void (i1, ...) @llvm.experimental.guard(i1 %cond1) [ "deopt"() ]
24; CHECK:   AliasSet[0x{{[0-9a-f]+}}, 1] must alias, Mod       Pointers: (i8* %b, LocationSize::precise(1))
25define void @test2(i32 %c) {
26entry:
27  %a = alloca i8, align 1
28  %b = alloca i8, align 1
29  store i8 1, i8* %a, align 1
30  %cond1 = icmp ne i32 %c, 0
31  call void (i1, ...) @llvm.experimental.guard(i1 %cond1)["deopt"()]
32  store i8 1, i8* %b, align 1
33  ret void
34}
35
36; CHECK: Alias sets for function 'test3':
37; CHECK: Alias Set Tracker: 1 alias sets for 2 pointer values.
38; CHECK:   AliasSet[0x{{[0-9a-f]+}}, 3] may alias, Mod/Ref   Pointers: (i8* %a, LocationSize::precise(1)), (i8* %b, LocationSize::precise(1))
39; CHECK:     1 Unknown instructions:   call void (i1, ...) @llvm.experimental.guard(i1 %cond1) [ "deopt"() ]
40define void @test3(i32 %c, i8* %a, i8* %b) {
41entry:
42  store i8 1, i8* %a, align 1
43  %cond1 = icmp ne i32 %c, 0
44  call void (i1, ...) @llvm.experimental.guard(i1 %cond1)["deopt"()]
45  store i8 1, i8* %b, align 1
46  ret void
47}
48
49; CHECK: Alias sets for function 'test4':
50; CHECK: Alias Set Tracker: 2 alias sets for 2 pointer values.
51; CHECK:   AliasSet[0x{{[0-9a-f]+}}, 2] may alias, Mod/Ref   Pointers: (i8* %a, LocationSize::precise(1))
52; CHECK:     1 Unknown instructions:   call void (i1, ...) @llvm.experimental.guard(i1 %cond1) [ "deopt"() ]
53; CHECK:   AliasSet[0x{{[0-9a-f]+}}, 1] must alias, Mod       Pointers: (i8* %b, LocationSize::precise(1))
54define void @test4(i32 %c, i8* %a) {
55entry:
56  %b = alloca i8, align 1
57  store i8 1, i8* %a, align 1
58  %cond1 = icmp ne i32 %c, 0
59  call void (i1, ...) @llvm.experimental.guard(i1 %cond1)["deopt"()]
60  store i8 1, i8* %b, align 1
61  ret void
62}
63
64declare void @llvm.assume(i1)
65declare void @llvm.experimental.guard(i1, ...)
66