1 files changed, 196 insertions, 0 deletions
diff --git a/llvm/test/DebugInfo/COFF/comdat.ll b/llvm/test/DebugInfo/COFF/comdat.ll
new file mode 100644
index 00000000000..94601b99899
--- /dev/null
+++ b/llvm/test/DebugInfo/COFF/comdat.ll
@@ -0,0 +1,196 @@
+; RUN: llc < %s | FileCheck %s
+
+; Verify that we get *two* .debug$S sections, the main one describing bar and
+; main, and one for f and fin$f, which is comdat with f.
+
+; Start in the main symbol section describing bar and main.
+
+; CHECK: .section .debug$S,"dr"{{$}}
+; CHECK: .long 4 # Debug section magic
+; CHECK: # Symbol subsection for bar
+; CHECK-NOT: Debug section magic
+; CHECK: # Symbol subsection for main
+
+; Emit symbol info for f and its associated code in a separate associated
+; section.
+
+; CHECK: .section .debug$S,"dr",associative,f{{$}}
+; CHECK: .long 4 # Debug section magic
+; CHECK: # Symbol subsection for f
+; CHECK-NOT: Debug section magic
+; CHECK: # Symbol subsection for ?fin$0@0@f@@
+
+; Switch back to the main section for the shared file checksum table and string
+; table.
+
+; CHECK: .section .debug$S,"dr"{{$}}
+; CHECK-NOT: Debug section magic
+; CHECK: .cv_filechecksums
+; CHECK: .cv_stringtable
+; CHECK-NOT: .section .debug$S,
+
+; Generated with this C++ source:
+; void foo();
+; void bar();
+; extern volatile int x;
+; inline void __declspec(noinline) f(bool c) {
+;   x++;
+;   if (c) {
+;     __try {
+;       foo();
+;     } __finally {
+;       x++;
+;     }
+;   } else
+;     bar();
+;   x++;
+; }
+; void bar() {
+;   x++;
+; }
+; int main() {
+;   f(true);
+; }
+
+; ModuleID = 't.cpp'
+source_filename = "t.cpp"
+target datalayout = "e-m:w-i64:64-f80:128-n8:16:32:64-S128"
+target triple = "x86_64-pc-windows-msvc19.0.23918"
+
+$f = comdat any
+
+@x = external global i32, align 4
+
+; Function Attrs: norecurse nounwind uwtable
+define void @bar() #0 !dbg !7 {
+entry:
+  %0 = load volatile i32, i32* @x, align 4, !dbg !10, !tbaa !11
+  %inc = add nsw i32 %0, 1, !dbg !10
+  store volatile i32 %inc, i32* @x, align 4, !dbg !10, !tbaa !11
+  ret void, !dbg !15
+}
+
+; Function Attrs: nounwind uwtable
+define i32 @main() #1 !dbg !16 {
+entry:
+  tail call void @f(i32 1), !dbg !20
+  ret i32 0, !dbg !21
+}
+
+; Function Attrs: inlinehint noinline nounwind uwtable
+define linkonce_odr void @f(i32 %c) #2 comdat personality i8* bitcast (i32 (...)* @__C_specific_handler to i8*) !dbg !22 {
+entry:
+  tail call void @llvm.dbg.value(metadata i32 %c, i64 0, metadata !26, metadata !27), !dbg !28
+  %0 = load volatile i32, i32* @x, align 4, !dbg !29, !tbaa !11
+  %inc = add nsw i32 %0, 1, !dbg !29
+  store volatile i32 %inc, i32* @x, align 4, !dbg !29, !tbaa !11
+  %tobool = icmp eq i32 %c, 0, !dbg !30
+  br i1 %tobool, label %if.else, label %if.then, !dbg !32
+
+if.then:                                          ; preds = %entry
+  invoke void bitcast (void (...)* @foo to void ()*)() #6
+          to label %invoke.cont unwind label %ehcleanup, !dbg !33
+
+invoke.cont:                                      ; preds = %if.then
+  tail call fastcc void @"\01?fin$0@0@f@@"() #7, !dbg !36
+  br label %if.end, !dbg !37
+
+ehcleanup:                                        ; preds = %if.then
+  %1 = cleanuppad within none [], !dbg !36
+  tail call fastcc void @"\01?fin$0@0@f@@"() #7 [ "funclet"(token %1) ], !dbg !36
+  cleanupret from %1 unwind to caller, !dbg !36
+
+if.else:                                          ; preds = %entry
+  tail call void @bar(), !dbg !38
+  br label %if.end
+
+if.end:                                           ; preds = %if.else, %invoke.cont
+  %2 = load volatile i32, i32* @x, align 4, !dbg !39, !tbaa !11
+  %inc1 = add nsw i32 %2, 1, !dbg !39
+  store volatile i32 %inc1, i32* @x, align 4, !dbg !39, !tbaa !11
+  ret void, !dbg !40
+}
+
+; Function Attrs: nounwind
+define internal fastcc void @"\01?fin$0@0@f@@"() unnamed_addr #3 comdat($f) !dbg !41 {
+entry:
+  tail call void @llvm.dbg.value(metadata i8* null, i64 0, metadata !44, metadata !27), !dbg !48
+  tail call void @llvm.dbg.value(metadata i8 0, i64 0, metadata !46, metadata !27), !dbg !48
+  %0 = load volatile i32, i32* @x, align 4, !dbg !49, !tbaa !11
+  %inc = add nsw i32 %0, 1, !dbg !49
+  store volatile i32 %inc, i32* @x, align 4, !dbg !49, !tbaa !11
+  ret void, !dbg !51
+}
+
+declare void @foo(...) #4
+
+declare i32 @__C_specific_handler(...)
+
+; Function Attrs: nounwind readnone
+declare void @llvm.dbg.value(metadata, i64, metadata, metadata) #5
+
+attributes #0 = { norecurse nounwind uwtable "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "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" }
+attributes #1 = { nounwind uwtable "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "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" }
+attributes #2 = { inlinehint noinline nounwind uwtable "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "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" }
+attributes #3 = { nounwind "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "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" }
+attributes #4 = { "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "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" }
+attributes #5 = { nounwind readnone }
+attributes #6 = { noinline }
+attributes #7 = { nounwind }
+
+!llvm.dbg.cu = !{!0}
+!llvm.module.flags = !{!3, !4, !5}
+!llvm.ident = !{!6}
+
+!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 3.9.0 ", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)
+!1 = !DIFile(filename: "t.cpp", directory: "D:\5Csrc\5Cllvm\5Cbuild")
+!2 = !{}
+!3 = !{i32 2, !"CodeView", i32 1}
+!4 = !{i32 2, !"Debug Info Version", i32 3}
+!5 = !{i32 1, !"PIC Level", i32 2}
+!6 = !{!"clang version 3.9.0 "}
+!7 = distinct !DISubprogram(name: "bar", scope: !1, file: !1, line: 19, type: !8, isLocal: false, isDefinition: true, scopeLine: 19, isOptimized: true, unit: !0, variables: !2)
+!8 = !DISubroutineType(types: !9)
+!9 = !{null}
+!10 = !DILocation(line: 20, column: 4, scope: !7)
+!11 = !{!12, !12, i64 0}
+!12 = !{!"int", !13, i64 0}
+!13 = !{!"omnipotent char", !14, i64 0}
+!14 = !{!"Simple C/C++ TBAA"}
+!15 = !DILocation(line: 21, column: 1, scope: !7)
+!16 = distinct !DISubprogram(name: "main", scope: !1, file: !1, line: 22, type: !17, isLocal: false, isDefinition: true, scopeLine: 22, isOptimized: true, unit: !0, variables: !2)
+!17 = !DISubroutineType(types: !18)
+!18 = !{!19}
+!19 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
+!20 = !DILocation(line: 23, column: 3, scope: !16)
+!21 = !DILocation(line: 24, column: 1, scope: !16)
+!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, variables: !25)
+!23 = !DISubroutineType(types: !24)
+!24 = !{null, !19}
+!25 = !{!26}
+!26 = !DILocalVariable(name: "c", arg: 1, scope: !22, file: !1, line: 5, type: !19)
+!27 = !DIExpression()
+!28 = !DILocation(line: 5, column: 40, scope: !22)
+!29 = !DILocation(line: 6, column: 4, scope: !22)
+!30 = !DILocation(line: 7, column: 7, scope: !31)
+!31 = distinct !DILexicalBlock(scope: !22, file: !1, line: 7, column: 7)
+!32 = !DILocation(line: 7, column: 7, scope: !22)
+!33 = !DILocation(line: 9, column: 7, scope: !34)
+!34 = distinct !DILexicalBlock(scope: !35, file: !1, line: 8, column: 11)
+!35 = distinct !DILexicalBlock(scope: !31, file: !1, line: 7, column: 10)
+!36 = !DILocation(line: 10, column: 5, scope: !34)
+!37 = !DILocation(line: 13, column: 3, scope: !35)
+!38 = !DILocation(line: 14, column: 5, scope: !31)
+!39 = !DILocation(line: 15, column: 4, scope: !22)
+!40 = !DILocation(line: 16, column: 1, scope: !22)
+!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, variables: !43)
+!42 = !DISubroutineType(types: !2)
+!43 = !{!44, !46}
+!44 = !DILocalVariable(name: "frame_pointer", arg: 2, scope: !41, type: !45, flags: DIFlagArtificial)
+!45 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: null, size: 64, align: 64)
+!46 = !DILocalVariable(name: "abnormal_termination", arg: 1, scope: !41, type: !47, flags: DIFlagArtificial | DIFlagObjectPointer)
+!47 = !DIBasicType(name: "unsigned char", size: 8, align: 8, encoding: DW_ATE_unsigned_char)
+!48 = !DILocation(line: 0, scope: !41)
+!49 = !DILocation(line: 11, column: 8, scope: !50)
+!50 = distinct !DILexicalBlock(scope: !41, file: !1, line: 10, column: 17)
+!51 = !DILocation(line: 12, column: 5, scope: !41)