1; RUN: opt -inline -S < %s | FileCheck %s
2;
3; A hand-edited version of inline-debug-info.ll to test inlining of a
4; function with multiple returns.
5;
6; Make sure the branch instructions created during inlining has a debug location,
7; so the range of the inlined function is correct.
8; CHECK: br label %_Z4testi.exit, !dbg ![[MD:[0-9]+]]
9; CHECK: br label %_Z4testi.exit, !dbg ![[MD]]
10; CHECK: br label %invoke.cont, !dbg ![[MD]]
11; The branch instruction has the source location of line 9 and its inlined location
12; has the source location of line 14.
13; CHECK: ![[INL:[0-9]+]] = distinct !MDLocation(line: 14, scope: {{.*}})
14; CHECK: ![[MD]] = !MDLocation(line: 9, scope: {{.*}}, inlinedAt: ![[INL]])
15
16; ModuleID = 'test.cpp'
17target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
18target triple = "x86_64-apple-darwin12.0.0"
19
20@_ZTIi = external constant i8*
21@global_var = external global i32
22
23; copy of above function with multiple returns
24define i32 @_Z4testi(i32 %k)  {
25entry:
26  %retval = alloca i32, align 4
27  %k.addr = alloca i32, align 4
28  %k2 = alloca i32, align 4
29  store i32 %k, i32* %k.addr, align 4
30  call void @llvm.dbg.declare(metadata i32* %k.addr, metadata !13, metadata !MDExpression()), !dbg !14
31  call void @llvm.dbg.declare(metadata i32* %k2, metadata !15, metadata !MDExpression()), !dbg !16
32  %0 = load i32, i32* %k.addr, align 4, !dbg !16
33  %call = call i32 @_Z8test_exti(i32 %0), !dbg !16
34  store i32 %call, i32* %k2, align 4, !dbg !16
35  %1 = load i32, i32* %k2, align 4, !dbg !17
36  %cmp = icmp sgt i32 %1, 100, !dbg !17
37  br i1 %cmp, label %if.then, label %if.end, !dbg !17
38
39if.then:                                          ; preds = %entry
40  %2 = load i32, i32* %k2, align 4, !dbg !18
41  store i32 %2, i32* %retval, !dbg !18
42  br label %return, !dbg !18
43
44if.end:                                           ; preds = %entry
45  store i32 0, i32* %retval, !dbg !19
46  %3 = load i32, i32* %retval, !dbg !20                ; hand-edited
47  ret i32 %3, !dbg !20                            ; hand-edited
48
49return:                                           ; preds = %if.end, %if.then
50  %4 = load i32, i32* %retval, !dbg !20
51  ret i32 %4, !dbg !20
52}
53
54
55; Function Attrs: nounwind readnone
56declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
57
58declare i32 @_Z8test_exti(i32)
59
60define i32 @_Z5test2v()  {
61entry:
62  %exn.slot = alloca i8*
63  %ehselector.slot = alloca i32
64  %e = alloca i32, align 4
65  %0 = load i32, i32* @global_var, align 4, !dbg !21
66  %call = invoke i32 @_Z4testi(i32 %0)
67          to label %invoke.cont unwind label %lpad, !dbg !21
68
69invoke.cont:                                      ; preds = %entry
70  br label %try.cont, !dbg !23
71
72lpad:                                             ; preds = %entry
73  %1 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
74          catch i8* bitcast (i8** @_ZTIi to i8*), !dbg !21
75  %2 = extractvalue { i8*, i32 } %1, 0, !dbg !21
76  store i8* %2, i8** %exn.slot, !dbg !21
77  %3 = extractvalue { i8*, i32 } %1, 1, !dbg !21
78  store i32 %3, i32* %ehselector.slot, !dbg !21
79  br label %catch.dispatch, !dbg !21
80
81catch.dispatch:                                   ; preds = %lpad
82  %sel = load i32, i32* %ehselector.slot, !dbg !23
83  %4 = call i32 @llvm.eh.typeid.for(i8* bitcast (i8** @_ZTIi to i8*)) #2, !dbg !23
84  %matches = icmp eq i32 %sel, %4, !dbg !23
85  br i1 %matches, label %catch, label %eh.resume, !dbg !23
86
87catch:                                            ; preds = %catch.dispatch
88  call void @llvm.dbg.declare(metadata i32* %e, metadata !24, metadata !MDExpression()), !dbg !25
89  %exn = load i8*, i8** %exn.slot, !dbg !23
90  %5 = call i8* @__cxa_begin_catch(i8* %exn) #2, !dbg !23
91  %6 = bitcast i8* %5 to i32*, !dbg !23
92  %7 = load i32, i32* %6, align 4, !dbg !23
93  store i32 %7, i32* %e, align 4, !dbg !23
94  store i32 0, i32* @global_var, align 4, !dbg !26
95  call void @__cxa_end_catch() #2, !dbg !28
96  br label %try.cont, !dbg !28
97
98try.cont:                                         ; preds = %catch, %invoke.cont
99  store i32 1, i32* @global_var, align 4, !dbg !29
100  ret i32 0, !dbg !30
101
102eh.resume:                                        ; preds = %catch.dispatch
103  %exn1 = load i8*, i8** %exn.slot, !dbg !23
104  %sel2 = load i32, i32* %ehselector.slot, !dbg !23
105  %lpad.val = insertvalue { i8*, i32 } undef, i8* %exn1, 0, !dbg !23
106  %lpad.val3 = insertvalue { i8*, i32 } %lpad.val, i32 %sel2, 1, !dbg !23
107  resume { i8*, i32 } %lpad.val3, !dbg !23
108}
109
110declare i32 @__gxx_personality_v0(...)
111
112; Function Attrs: nounwind readnone
113declare i32 @llvm.eh.typeid.for(i8*) #1
114
115declare i8* @__cxa_begin_catch(i8*)
116
117declare void @__cxa_end_catch()
118
119attributes #1 = { nounwind readnone }
120attributes #2 = { nounwind }
121
122!llvm.dbg.cu = !{!0}
123!llvm.module.flags = !{!31}
124
125!0 = !MDCompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.3 ", isOptimized: false, emissionKind: 0, file: !1, enums: !2, retainedTypes: !2, subprograms: !3, globals: !2, imports: !2)
126!1 = !MDFile(filename: "<unknown>", directory: "")
127!2 = !{}
128!3 = !{!4, !10}
129!4 = !MDSubprogram(name: "test", linkageName: "_Z4testi", line: 4, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 4, file: !5, scope: !6, type: !7, function: i32 (i32)* @_Z4testi, variables: !2)
130!5 = !MDFile(filename: "test.cpp", directory: "")
131!6 = !MDFile(filename: "test.cpp", directory: "")
132!7 = !MDSubroutineType(types: !8)
133!8 = !{!9, !9}
134!9 = !MDBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
135!10 = !MDSubprogram(name: "test2", linkageName: "_Z5test2v", line: 11, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 11, file: !5, scope: !6, type: !11, function: i32 ()* @_Z5test2v, variables: !2)
136!11 = !MDSubroutineType(types: !12)
137!12 = !{!9}
138!13 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "k", line: 4, arg: 1, scope: !4, file: !6, type: !9)
139!14 = !MDLocation(line: 4, scope: !4)
140!15 = !MDLocalVariable(tag: DW_TAG_auto_variable, name: "k2", line: 5, scope: !4, file: !6, type: !9)
141!16 = !MDLocation(line: 5, scope: !4)
142!17 = !MDLocation(line: 6, scope: !4)
143!18 = !MDLocation(line: 7, scope: !4)
144!19 = !MDLocation(line: 8, scope: !4)
145!20 = !MDLocation(line: 9, scope: !4)
146!21 = !MDLocation(line: 14, scope: !22)
147!22 = distinct !MDLexicalBlock(line: 13, column: 0, file: !5, scope: !10)
148!23 = !MDLocation(line: 15, scope: !22)
149!24 = !MDLocalVariable(tag: DW_TAG_auto_variable, name: "e", line: 16, scope: !10, file: !6, type: !9)
150!25 = !MDLocation(line: 16, scope: !10)
151!26 = !MDLocation(line: 17, scope: !27)
152!27 = distinct !MDLexicalBlock(line: 16, column: 0, file: !5, scope: !10)
153!28 = !MDLocation(line: 18, scope: !27)
154!29 = !MDLocation(line: 19, scope: !10)
155!30 = !MDLocation(line: 20, scope: !10)
156!31 = !{i32 1, !"Debug Info Version", i32 3}
157