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1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
2; RUN: opt -newgvn -S %s | FileCheck %s
3; Ensure that loads that bypass memory def-use chains get added as users of the new
4; MemoryDef.  Otherwise this test will not pass memory verification because the value
5; of the load will not be reprocessed until verification.
6; ModuleID = 'bugpoint-reduced-simplified.bc'
7source_filename = "bugpoint-output-f242c4f.bc"
8target triple = "x86_64-apple-darwin16.7.0"
9
10@global = external global i32 #0
11@global.1 = external global i32 #0
12
13define void @hoge(i32 %arg) {
14; CHECK-LABEL: @hoge(
15; CHECK-NEXT:  bb:
16; CHECK-NEXT:    br label [[BB2:%.*]]
17; CHECK:       bb1:
18; CHECK-NEXT:    br label [[BB2]]
19; CHECK:       bb2:
20; CHECK-NEXT:    [[TMP:%.*]] = phi i32 [ 0, [[BB1:%.*]] ], [ [[ARG:%.*]], [[BB:%.*]] ]
21; CHECK-NEXT:    br label [[BB6:%.*]]
22; CHECK:       bb3:
23; CHECK-NEXT:    [[TMP4:%.*]] = load i32, i32* @global, !h !0
24; CHECK-NEXT:    unreachable
25; CHECK:       bb6:
26; CHECK-NEXT:    store i32 [[TMP]], i32* @global.1, !h !0
27; CHECK-NEXT:    br i1 undef, label [[BB7:%.*]], label [[BB1]]
28; CHECK:       bb7:
29; CHECK-NEXT:    br i1 undef, label [[BB10:%.*]], label [[BB8:%.*]]
30; CHECK:       bb8:
31; CHECK-NEXT:    br i1 false, label [[BB9:%.*]], label [[BB3:%.*]]
32; CHECK:       bb9:
33; CHECK-NEXT:    store i8 undef, i8* null
34; CHECK-NEXT:    br label [[BB3]]
35; CHECK:       bb10:
36; CHECK-NEXT:    store i32 0, i32* @global, !h !0
37; CHECK-NEXT:    br label [[BB7]]
38;
39bb:
40  br label %bb2
41
42bb1:                                              ; preds = %bb6
43  br label %bb2
44
45bb2:                                              ; preds = %bb1, %bb
46  %tmp = phi i32 [ 0, %bb1 ], [ %arg, %bb ]
47  br label %bb6
48
49bb3:                                              ; preds = %bb9, %bb8
50  %tmp4 = load i32, i32* @global, !h !0
51  %tmp5 = icmp eq i32 %tmp4, 0
52  unreachable
53
54bb6:                                              ; preds = %bb2
55  store i32 %tmp, i32* @global.1, !h !0
56  br i1 undef, label %bb7, label %bb1
57
58bb7:                                              ; preds = %bb10, %bb6
59  br i1 undef, label %bb10, label %bb8
60
61bb8:                                              ; preds = %bb7
62  br i1 false, label %bb9, label %bb3
63
64bb9:                                              ; preds = %bb8
65  call void @widget()
66  br label %bb3
67
68bb10:                                             ; preds = %bb7
69  store i32 0, i32* @global, !h !0
70  br label %bb7
71}
72
73declare void @widget()
74
75attributes #0 = { align=4 }
76
77!0 = !{}
78