[codeview] Emit retained types
Differential Revision: http://reviews.llvm.org/D21630
llvm-svn: 273579
diff --git a/llvm/lib/CodeGen/AsmPrinter/CodeViewDebug.cpp b/llvm/lib/CodeGen/AsmPrinter/CodeViewDebug.cpp
index 4edc6ae..4c46e51 100644
--- a/llvm/lib/CodeGen/AsmPrinter/CodeViewDebug.cpp
+++ b/llvm/lib/CodeGen/AsmPrinter/CodeViewDebug.cpp
@@ -344,6 +344,9 @@
setCurrentSubprogram(nullptr);
emitDebugInfoForGlobals();
+ // Emit retained types.
+ emitDebugInfoForRetainedTypes();
+
// Switch back to the generic .debug$S section after potentially processing
// comdat symbol sections.
switchToDebugSectionForSymbol(nullptr);
@@ -1802,6 +1805,18 @@
}
}
+void CodeViewDebug::emitDebugInfoForRetainedTypes() {
+ NamedMDNode *CUs = MMI->getModule()->getNamedMetadata("llvm.dbg.cu");
+ for (const MDNode *Node : CUs->operands()) {
+ for (auto *Ty : cast<DICompileUnit>(Node)->getRetainedTypes()) {
+ if (DIType *RT = dyn_cast<DIType>(Ty)) {
+ getTypeIndex(RT);
+ // FIXME: Add to global/local DTU list.
+ }
+ }
+ }
+}
+
void CodeViewDebug::emitDebugInfoForGlobal(const DIGlobalVariable *DIGV,
MCSymbol *GVSym) {
// DataSym record, see SymbolRecord.h for more info.
diff --git a/llvm/lib/CodeGen/AsmPrinter/CodeViewDebug.h b/llvm/lib/CodeGen/AsmPrinter/CodeViewDebug.h
index a7976d8..93480d1 100644
--- a/llvm/lib/CodeGen/AsmPrinter/CodeViewDebug.h
+++ b/llvm/lib/CodeGen/AsmPrinter/CodeViewDebug.h
@@ -191,6 +191,8 @@
void emitDebugInfoForGlobals();
+ void emitDebugInfoForRetainedTypes();
+
void emitDebugInfoForUDTs(
ArrayRef<std::pair<std::string, codeview::TypeIndex>> UDTs);