diff options
| -rw-r--r-- | lib/CodeGen/AsmPrinter/DwarfDebug.cpp | 20 |
1 files changed, 19 insertions, 1 deletions
diff --git a/lib/CodeGen/AsmPrinter/DwarfDebug.cpp b/lib/CodeGen/AsmPrinter/DwarfDebug.cpp index f0579fe588..811bf65d9d 100644 --- a/lib/CodeGen/AsmPrinter/DwarfDebug.cpp +++ b/lib/CodeGen/AsmPrinter/DwarfDebug.cpp @@ -1894,6 +1894,24 @@ bool DwarfDebug::ExtractScopeInformation(MachineFunction *MF) { return !DbgScopeMap.empty(); } +static DISubprogram getDISubprogram(MDNode *N) { + + DIDescriptor D(N); + if (D.isNull()) + return DISubprogram(); + + if (D.isCompileUnit()) + return DISubprogram(); + + if (D.isSubprogram()) + return DISubprogram(N); + + if (D.isLexicalBlock()) + return getDISubprogram(DILexicalBlock(N).getContext().getNode()); + + assert (0 && "Unexpected Descriptor!"); +} + /// BeginFunction - Gather pre-function debug information. Assumes being /// emitted immediately after the function entry point. void DwarfDebug::BeginFunction(MachineFunction *MF) { @@ -1923,7 +1941,7 @@ void DwarfDebug::BeginFunction(MachineFunction *MF) { if (!FDL.isUnknown()) { DebugLocTuple DLT = MF->getDebugLocTuple(FDL); unsigned LabelID = 0; - DISubprogram SP(DLT.CompileUnit); + DISubprogram SP = getDISubprogram(DLT.CompileUnit); if (!SP.isNull()) LabelID = RecordSourceLine(SP.getLineNumber(), 0, DLT.CompileUnit); else |