1; RUN: opt -callsite-splitting -S < %s | FileCheck %s
2
3; CHECK-LABEL: @test1
4; CHECK:         [[R1:%.+]] = call i32 @callee(i32 0, i32 %dd), !dbg [[DBG1:!.*]]
5; CHECK:         [[R2:%.+]] = call i32 @callee(i32 1, i32 %dd), !dbg [[DBG1]]
6; CHECK-LABEL: CallSite:
7; CHECK-NEXT:    phi i32 [ [[R2]], %land.rhs.split ], [ [[R1]], %entry.split ], !dbg [[DBG1]]
8
9define i32 @test1(i32* dereferenceable(4) %cc, i32 %dd) !dbg !6 {
10entry:
11  br i1 undef, label %CallSite, label %land.rhs
12
13land.rhs:                                         ; preds = %entry
14  br label %CallSite
15
16CallSite:                                         ; preds = %land.rhs, %entry
17  %pv = phi i32 [ 0, %entry ], [ 1, %land.rhs ]
18  %call = call i32 @callee(i32 %pv, i32 %dd), !dbg !18
19  ret i32 %call
20}
21
22; CHECK-LABEL: @test2
23; CHECK:         [[LV1:%.*]] = load i32, i32* %ptr, align 4, !dbg [[DBG_LV:!.*]]
24; CHECK-NEXT:    [[R1:%.+]] = call i32 @callee(i32 0, i32 10), !dbg [[DBG_CALL:!.*]]
25; CHECK:         [[LV2:%.*]] = load i32, i32* %ptr, align 4, !dbg [[DBG_LV]]
26; CHECK-NEXT:    [[R2:%.+]] = call i32 @callee(i32 0, i32 %i), !dbg [[DBG_CALL]]
27; CHECK-LABEL: CallSite:
28; CHECK-NEXT:    phi i32 [ [[LV1]], %Header.split ], [ [[LV2]], %TBB.split ], !dbg [[DBG_LV]]
29; CHECK-NEXT:    phi i32 [ [[R1]], %Header.split ], [ [[R2]], %TBB.split ], !dbg [[DBG_CALL]]
30
31define void @test2(i32* %ptr, i32 %i) !dbg !19 {
32Header:
33  %tobool = icmp ne i32 %i, 10
34  br i1 %tobool, label %TBB, label %CallSite
35
36TBB:                                              ; preds = %Header
37  br i1 undef, label %CallSite, label %End
38
39CallSite:                                         ; preds = %TBB, %Header
40  %lv = load i32, i32* %ptr, align 4, !dbg !25
41  %cv = call i32 @callee(i32 0, i32 %i), !dbg !26
42  %sub = sub nsw i32 %lv, %cv
43  br label %End
44
45End:                                              ; preds = %CallSite, %TBB
46  ret void
47}
48
49define i32 @callee(i32 %aa, i32 %bb) {
50entry:
51  %add = add nsw i32 %aa, %bb
52  ret i32 %add
53}
54
55!llvm.dbg.cu = !{!0}
56!llvm.debugify = !{!3, !4}
57!llvm.module.flags = !{!5}
58
59!0 = distinct !DICompileUnit(language: DW_LANG_C, file: !1, producer: "debugify", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)
60!1 = !DIFile(filename: "<stdin>", directory: "/")
61!2 = !{}
62!3 = !{i32 23}
63!4 = !{i32 11}
64!5 = !{i32 2, !"Debug Info Version", i32 3}
65!6 = distinct !DISubprogram(name: "test", linkageName: "test", scope: null, file: !1, line: 3, type: !7, isLocal: false, isDefinition: true, scopeLine: 3, isOptimized: true, unit: !0, retainedNodes: !8)
66!7 = !DISubroutineType(types: !2)
67!8 = !{!9, !11, !13, !15, !16, !17}
68!9 = !DILocalVariable(name: "2", scope: !6, file: !1, line: 3, type: !10)
69!10 = !DIBasicType(name: "ty64", size: 64, encoding: DW_ATE_unsigned)
70!11 = !DILocalVariable(name: "3", scope: !6, file: !1, line: 5, type: !12)
71!12 = !DIBasicType(name: "ty32", size: 32, encoding: DW_ATE_unsigned)
72!13 = !DILocalVariable(name: "4", scope: !6, file: !1, line: 6, type: !14)
73!14 = !DIBasicType(name: "ty8", size: 8, encoding: DW_ATE_unsigned)
74!15 = !DILocalVariable(name: "5", scope: !6, file: !1, line: 9, type: !12)
75!16 = !DILocalVariable(name: "6", scope: !6, file: !1, line: 10, type: !12)
76!17 = !DILocalVariable(name: "7", scope: !6, file: !1, line: 11, type: !10)
77!18 = !DILocation(line: 10, column: 1, scope: !6)
78!19 = distinct !DISubprogram(name: "test_add_new_phi", linkageName: "test_add_new_phi", scope: null, file: !1, line: 14, type: !7, isLocal: false, isDefinition: true, scopeLine: 14, isOptimized: true, unit: !0, retainedNodes: !20)
79!20 = !{!21, !22, !23, !24}
80!21 = !DILocalVariable(name: "8", scope: !19, file: !1, line: 14, type: !14)
81!22 = !DILocalVariable(name: "9", scope: !19, file: !1, line: 17, type: !10)
82!23 = !DILocalVariable(name: "10", scope: !19, file: !1, line: 18, type: !12)
83!24 = !DILocalVariable(name: "11", scope: !19, file: !1, line: 20, type: !12)
84!25 = !DILocation(line: 18, column: 1, scope: !19)
85!26 = !DILocation(line: 19, column: 1, scope: !19)
86