Gracefully handle various scopes while recording source line info.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83317 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/AsmPrinter/DwarfDebug.cpp b/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
index bbaf1ad..e364c0d 100644
--- a/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
+++ b/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
@@ -1958,16 +1958,33 @@
/// label. Returns a unique label ID used to generate a label and provide
/// correspondence to the source line list.
unsigned DwarfDebug::RecordSourceLine(unsigned Line, unsigned Col,
- MDNode *Scope) {
+ MDNode *S) {
if (!MMI)
return 0;
if (TimePassesIsEnabled)
DebugTimer->startTimer();
- DICompileUnit CU(Scope);
- unsigned Src = GetOrCreateSourceID(CU.getDirectory(),
- CU.getFilename());
+ const char *Dir = NULL;
+ const char *Fn = NULL;
+
+ DIDescriptor Scope(S);
+ if (Scope.isCompileUnit()) {
+ DICompileUnit CU(S);
+ Dir = CU.getDirectory();
+ Fn = CU.getFilename();
+ } else if (Scope.isSubprogram()) {
+ DISubprogram SP(S);
+ Dir = SP.getDirectory();
+ Fn = SP.getFilename();
+ } else if (Scope.isLexicalBlock()) {
+ DILexicalBlock DB(S);
+ Dir = DB.getDirectory();
+ Fn = DB.getFilename();
+ } else
+ assert (0 && "Unexpected scope info");
+
+ unsigned Src = GetOrCreateSourceID(Dir, Fn);
unsigned ID = MMI->NextLabelID();
Lines.push_back(SrcLineInfo(Line, Col, Src, ID));