Harden CGDebugInfo::CreateType() a bit for cases where we couldn't generate type info for its component types
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@120401 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CGDebugInfo.cpp b/lib/CodeGen/CGDebugInfo.cpp
index f016906..d532214 100644
--- a/lib/CodeGen/CGDebugInfo.cpp
+++ b/lib/CodeGen/CGDebugInfo.cpp
@@ -1103,6 +1103,9 @@
llvm::DIType CGDebugInfo::CreateType(const ObjCInterfaceType *Ty,
llvm::DIFile Unit) {
ObjCInterfaceDecl *ID = Ty->getDecl();
+ if (!ID)
+ return llvm::DIType();
+
unsigned Tag = llvm::dwarf::DW_TAG_structure_type;
// Get overall information about the record type for the debug info.
@@ -1145,6 +1148,9 @@
if (SClass) {
llvm::DIType SClassTy =
getOrCreateType(CGM.getContext().getObjCInterfaceType(SClass), Unit);
+ if (!SClassTy.isValid())
+ return llvm::DIType();
+
llvm::DIType InhTag =
DebugFactory.CreateDerivedType(llvm::dwarf::DW_TAG_inheritance,
Unit, "", Unit, 0, 0, 0,
@@ -1158,7 +1164,9 @@
for (ObjCIvarDecl *Field = ID->all_declared_ivar_begin(); Field;
Field = Field->getNextIvar(), ++FieldNo) {
llvm::DIType FieldTy = getOrCreateType(Field->getType(), Unit);
-
+ if (!FieldTy.isValid())
+ return llvm::DIType();
+
llvm::StringRef FieldName = Field->getName();
// Ignore unnamed fields.