1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
2
3; RUN: opt < %s -basic-aa -dse -S | FileCheck --check-prefix=NO-LIMIT %s
4; RUN: opt < %s -basic-aa -dse -dse-memoryssa-scanlimit=0 -S | FileCheck --check-prefix=LIMIT-0 %s
5; RUN: opt < %s -basic-aa -dse -dse-memoryssa-scanlimit=2 -S | FileCheck --check-prefix=LIMIT-2 %s
6; RUN: opt < %s -basic-aa -dse -dse-memoryssa-scanlimit=3 -S | FileCheck --check-prefix=LIMIT-3 %s
7
8target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n32-S64"
9
10
11define void @test2(i32* noalias %P, i32* noalias %Q, i32* noalias %R) {
12; NO-LIMIT-LABEL: @test2(
13; NO-LIMIT-NEXT:    br i1 true, label [[BB1:%.*]], label [[BB2:%.*]]
14; NO-LIMIT:       bb1:
15; NO-LIMIT-NEXT:    br label [[BB3:%.*]]
16; NO-LIMIT:       bb2:
17; NO-LIMIT-NEXT:    br label [[BB3]]
18; NO-LIMIT:       bb3:
19; NO-LIMIT-NEXT:    store i32 0, i32* [[Q:%.*]], align 4
20; NO-LIMIT-NEXT:    store i32 0, i32* [[R:%.*]], align 4
21; NO-LIMIT-NEXT:    store i32 0, i32* [[P:%.*]], align 4
22; NO-LIMIT-NEXT:    ret void
23;
24; LIMIT-0-LABEL: @test2(
25; LIMIT-0-NEXT:    store i32 1, i32* [[P:%.*]], align 4
26; LIMIT-0-NEXT:    br i1 true, label [[BB1:%.*]], label [[BB2:%.*]]
27; LIMIT-0:       bb1:
28; LIMIT-0-NEXT:    br label [[BB3:%.*]]
29; LIMIT-0:       bb2:
30; LIMIT-0-NEXT:    br label [[BB3]]
31; LIMIT-0:       bb3:
32; LIMIT-0-NEXT:    store i32 0, i32* [[Q:%.*]], align 4
33; LIMIT-0-NEXT:    store i32 0, i32* [[R:%.*]], align 4
34; LIMIT-0-NEXT:    store i32 0, i32* [[P]], align 4
35; LIMIT-0-NEXT:    ret void
36;
37; LIMIT-2-LABEL: @test2(
38; LIMIT-2-NEXT:    store i32 1, i32* [[P:%.*]], align 4
39; LIMIT-2-NEXT:    br i1 true, label [[BB1:%.*]], label [[BB2:%.*]]
40; LIMIT-2:       bb1:
41; LIMIT-2-NEXT:    br label [[BB3:%.*]]
42; LIMIT-2:       bb2:
43; LIMIT-2-NEXT:    br label [[BB3]]
44; LIMIT-2:       bb3:
45; LIMIT-2-NEXT:    store i32 0, i32* [[Q:%.*]], align 4
46; LIMIT-2-NEXT:    store i32 0, i32* [[R:%.*]], align 4
47; LIMIT-2-NEXT:    store i32 0, i32* [[P]], align 4
48; LIMIT-2-NEXT:    ret void
49;
50; LIMIT-3-LABEL: @test2(
51; LIMIT-3-NEXT:    br i1 true, label [[BB1:%.*]], label [[BB2:%.*]]
52; LIMIT-3:       bb1:
53; LIMIT-3-NEXT:    br label [[BB3:%.*]]
54; LIMIT-3:       bb2:
55; LIMIT-3-NEXT:    br label [[BB3]]
56; LIMIT-3:       bb3:
57; LIMIT-3-NEXT:    store i32 0, i32* [[Q:%.*]], align 4
58; LIMIT-3-NEXT:    store i32 0, i32* [[R:%.*]], align 4
59; LIMIT-3-NEXT:    store i32 0, i32* [[P:%.*]], align 4
60; LIMIT-3-NEXT:    ret void
61;
62  store i32 1, i32* %P
63  br i1 true, label %bb1, label %bb2
64bb1:
65  br label %bb3
66bb2:
67  br label %bb3
68bb3:
69  store i32 0, i32* %Q
70  store i32 0, i32* %R
71  store i32 0, i32* %P
72  ret void
73}
74