1; RUN: llc < %s | FileCheck %s
2
3; Verify that we get *two* .debug$S sections, the main one describing bar and
4; main, and one for f and fin$f, which is comdat with f.
5
6; Start in the main symbol section describing bar and main.
7
8; CHECK: .section .debug$S,"dr"{{$}}
9; CHECK: .long 4 # Debug section magic
10; CHECK: # Symbol subsection for bar
11; CHECK-NOT: Debug section magic
12; CHECK: # Symbol subsection for main
13
14; Emit symbol info for f and its associated code in a separate associated
15; section.
16
17; CHECK: .section .debug$S,"dr",associative,f{{$}}
18; CHECK: .long 4 # Debug section magic
19; CHECK: # Symbol subsection for f
20; CHECK-NOT: Debug section magic
21; CHECK: # Symbol subsection for ?fin$0@0@f@@
22
23; Switch back to the main section for the shared file checksum table and string
24; table.
25
26; CHECK: .section .debug$S,"dr"{{$}}
27; CHECK-NOT: Debug section magic
28; CHECK: .cv_filechecksums
29; CHECK: .cv_stringtable
30; CHECK-NOT: .section .debug$S,
31
32; Generated with this C++ source:
33; void foo();
34; void bar();
35; extern volatile int x;
36; inline void __declspec(noinline) f(bool c) {
37;   x++;
38;   if (c) {
39;     __try {
40;       foo();
41;     } __finally {
42;       x++;
43;     }
44;   } else
45;     bar();
46;   x++;
47; }
48; void bar() {
49;   x++;
50; }
51; int main() {
52;   f(true);
53; }
54
55; ModuleID = 't.cpp'
56source_filename = "t.cpp"
57target datalayout = "e-m:w-i64:64-f80:128-n8:16:32:64-S128"
58target triple = "x86_64-pc-windows-msvc19.0.23918"
59
60$f = comdat any
61
62@x = external global i32, align 4
63
64; Function Attrs: norecurse nounwind uwtable
65define void @bar() #0 !dbg !7 {
66entry:
67  %0 = load volatile i32, i32* @x, align 4, !dbg !10, !tbaa !11
68  %inc = add nsw i32 %0, 1, !dbg !10
69  store volatile i32 %inc, i32* @x, align 4, !dbg !10, !tbaa !11
70  ret void, !dbg !15
71}
72
73; Function Attrs: nounwind uwtable
74define i32 @main() #1 !dbg !16 {
75entry:
76  tail call void @f(i32 1), !dbg !20
77  ret i32 0, !dbg !21
78}
79
80; Function Attrs: inlinehint noinline nounwind uwtable
81define linkonce_odr void @f(i32 %c) #2 comdat personality i8* bitcast (i32 (...)* @__C_specific_handler to i8*) !dbg !22 {
82entry:
83  tail call void @llvm.dbg.value(metadata i32 %c, metadata !26, metadata !27), !dbg !28
84  %0 = load volatile i32, i32* @x, align 4, !dbg !29, !tbaa !11
85  %inc = add nsw i32 %0, 1, !dbg !29
86  store volatile i32 %inc, i32* @x, align 4, !dbg !29, !tbaa !11
87  %tobool = icmp eq i32 %c, 0, !dbg !30
88  br i1 %tobool, label %if.else, label %if.then, !dbg !32
89
90if.then:                                          ; preds = %entry
91  invoke void bitcast (void (...)* @foo to void ()*)() #6
92          to label %invoke.cont unwind label %ehcleanup, !dbg !33
93
94invoke.cont:                                      ; preds = %if.then
95  tail call fastcc void @"\01?fin$0@0@f@@"() #7, !dbg !36
96  br label %if.end, !dbg !37
97
98ehcleanup:                                        ; preds = %if.then
99  %1 = cleanuppad within none [], !dbg !36
100  tail call fastcc void @"\01?fin$0@0@f@@"() #7 [ "funclet"(token %1) ], !dbg !36
101  cleanupret from %1 unwind to caller, !dbg !36
102
103if.else:                                          ; preds = %entry
104  tail call void @bar(), !dbg !38
105  br label %if.end
106
107if.end:                                           ; preds = %if.else, %invoke.cont
108  %2 = load volatile i32, i32* @x, align 4, !dbg !39, !tbaa !11
109  %inc1 = add nsw i32 %2, 1, !dbg !39
110  store volatile i32 %inc1, i32* @x, align 4, !dbg !39, !tbaa !11
111  ret void, !dbg !40
112}
113
114; Function Attrs: nounwind
115define internal fastcc void @"\01?fin$0@0@f@@"() unnamed_addr #3 comdat($f) !dbg !41 {
116entry:
117  tail call void @llvm.dbg.value(metadata i8* null, metadata !44, metadata !27), !dbg !48
118  tail call void @llvm.dbg.value(metadata i8 0, metadata !46, metadata !27), !dbg !48
119  %0 = load volatile i32, i32* @x, align 4, !dbg !49, !tbaa !11
120  %inc = add nsw i32 %0, 1, !dbg !49
121  store volatile i32 %inc, i32* @x, align 4, !dbg !49, !tbaa !11
122  ret void, !dbg !51
123}
124
125declare void @foo(...) #4
126
127declare i32 @__C_specific_handler(...)
128
129; Function Attrs: nounwind readnone
130declare void @llvm.dbg.value(metadata, metadata, metadata) #5
131
132attributes #0 = { norecurse nounwind uwtable "disable-tail-calls"="false" "less-precise-fpmad"="false" "frame-pointer"="none" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+fxsr,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" }
133attributes #1 = { nounwind uwtable "disable-tail-calls"="false" "less-precise-fpmad"="false" "frame-pointer"="none" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+fxsr,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" }
134attributes #2 = { inlinehint noinline nounwind uwtable "disable-tail-calls"="false" "less-precise-fpmad"="false" "frame-pointer"="none" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+fxsr,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" }
135attributes #3 = { nounwind "disable-tail-calls"="false" "less-precise-fpmad"="false" "frame-pointer"="none" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+fxsr,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" }
136attributes #4 = { "disable-tail-calls"="false" "less-precise-fpmad"="false" "frame-pointer"="none" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+fxsr,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" }
137attributes #5 = { nounwind readnone }
138attributes #6 = { noinline }
139attributes #7 = { nounwind }
140
141!llvm.dbg.cu = !{!0}
142!llvm.module.flags = !{!3, !4, !5}
143!llvm.ident = !{!6}
144
145!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 3.9.0 ", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)
146!1 = !DIFile(filename: "t.cpp", directory: "D:\5Csrc\5Cllvm\5Cbuild")
147!2 = !{}
148!3 = !{i32 2, !"CodeView", i32 1}
149!4 = !{i32 2, !"Debug Info Version", i32 3}
150!5 = !{i32 1, !"PIC Level", i32 2}
151!6 = !{!"clang version 3.9.0 "}
152!7 = distinct !DISubprogram(name: "bar", scope: !1, file: !1, line: 19, type: !8, isLocal: false, isDefinition: true, scopeLine: 19, isOptimized: true, unit: !0, retainedNodes: !2)
153!8 = !DISubroutineType(types: !9)
154!9 = !{null}
155!10 = !DILocation(line: 20, column: 4, scope: !7)
156!11 = !{!12, !12, i64 0}
157!12 = !{!"int", !13, i64 0}
158!13 = !{!"omnipotent char", !14, i64 0}
159!14 = !{!"Simple C/C++ TBAA"}
160!15 = !DILocation(line: 21, column: 1, scope: !7)
161!16 = distinct !DISubprogram(name: "main", scope: !1, file: !1, line: 22, type: !17, isLocal: false, isDefinition: true, scopeLine: 22, isOptimized: true, unit: !0, retainedNodes: !2)
162!17 = !DISubroutineType(types: !18)
163!18 = !{!19}
164!19 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
165!20 = !DILocation(line: 23, column: 3, scope: !16)
166!21 = !DILocation(line: 24, column: 1, scope: !16)
167!22 = distinct !DISubprogram(name: "f", scope: !1, file: !1, line: 5, type: !23, isLocal: false, isDefinition: true, scopeLine: 5, flags: DIFlagPrototyped, isOptimized: true, unit: !0, retainedNodes: !25)
168!23 = !DISubroutineType(types: !24)
169!24 = !{null, !19}
170!25 = !{!26}
171!26 = !DILocalVariable(name: "c", arg: 1, scope: !22, file: !1, line: 5, type: !19)
172!27 = !DIExpression()
173!28 = !DILocation(line: 5, column: 40, scope: !22)
174!29 = !DILocation(line: 6, column: 4, scope: !22)
175!30 = !DILocation(line: 7, column: 7, scope: !31)
176!31 = distinct !DILexicalBlock(scope: !22, file: !1, line: 7, column: 7)
177!32 = !DILocation(line: 7, column: 7, scope: !22)
178!33 = !DILocation(line: 9, column: 7, scope: !34)
179!34 = distinct !DILexicalBlock(scope: !35, file: !1, line: 8, column: 11)
180!35 = distinct !DILexicalBlock(scope: !31, file: !1, line: 7, column: 10)
181!36 = !DILocation(line: 10, column: 5, scope: !34)
182!37 = !DILocation(line: 13, column: 3, scope: !35)
183!38 = !DILocation(line: 14, column: 5, scope: !31)
184!39 = !DILocation(line: 15, column: 4, scope: !22)
185!40 = !DILocation(line: 16, column: 1, scope: !22)
186!41 = distinct !DISubprogram(linkageName: "\01?fin$0@0@f@@", scope: !1, file: !1, line: 10, type: !42, isLocal: true, isDefinition: true, scopeLine: 10, flags: DIFlagArtificial, isOptimized: true, unit: !0, retainedNodes: !43)
187!42 = !DISubroutineType(types: !2)
188!43 = !{!44, !46}
189!44 = !DILocalVariable(name: "frame_pointer", arg: 2, scope: !41, type: !45, flags: DIFlagArtificial)
190!45 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: null, size: 64, align: 64)
191!46 = !DILocalVariable(name: "abnormal_termination", arg: 1, scope: !41, type: !47, flags: DIFlagArtificial | DIFlagObjectPointer)
192!47 = !DIBasicType(name: "unsigned char", size: 8, align: 8, encoding: DW_ATE_unsigned_char)
193!48 = !DILocation(line: 0, scope: !41)
194!49 = !DILocation(line: 11, column: 8, scope: !50)
195!50 = distinct !DILexicalBlock(scope: !41, file: !1, line: 10, column: 17)
196!51 = !DILocation(line: 12, column: 5, scope: !41)
197