char *StrPtr = DebugInfoNames.Allocate<char>(Buffer.length());
memcpy(StrPtr, Buffer.data(), Buffer.length());
return llvm::StringRef(StrPtr, Buffer.length());
-
}
/// getOrCreateFile - Get the file debug info descriptor for the input location.
unsigned Flags = 0;
if (VD->isImplicit())
Flags |= llvm::DIDescriptor::FlagArtificial;
- // Create the descriptor for the variable.
- llvm::DIVariable D =
- DebugFactory.CreateVariable(Tag, llvm::DIDescriptor(RegionStack.back()),
- VD->getName(), Unit, Line, Ty,
- CGM.getLangOptions().Optimize, Flags);
-
- // Insert an llvm.dbg.declare into the current block.
- llvm::Instruction *Call =
- DebugFactory.InsertDeclare(Storage, D, Builder.GetInsertBlock());
-
llvm::MDNode *Scope = RegionStack.back();
- Call->setDebugLoc(llvm::DebugLoc::get(Line, Column, Scope));
+
+ llvm::StringRef Name = VD->getName();
+ if (!Name.empty()) {
+ // Create the descriptor for the variable.
+ llvm::DIVariable D =
+ DebugFactory.CreateVariable(Tag, llvm::DIDescriptor(Scope),
+ Name, Unit, Line, Ty,
+ CGM.getLangOptions().Optimize, Flags);
+
+ // Insert an llvm.dbg.declare into the current block.
+ llvm::Instruction *Call =
+ DebugFactory.InsertDeclare(Storage, D, Builder.GetInsertBlock());
+
+ Call->setDebugLoc(llvm::DebugLoc::get(Line, Column, Scope));
+ }
+
+ // If VD is an anonymous union then Storage represents value for
+ // all union fields.
+ if (const RecordType *RT = dyn_cast<RecordType>(VD->getType()))
+ if (const RecordDecl *RD = dyn_cast<RecordDecl>(RT->getDecl()))
+ if (RD->isUnion()) {
+ for (RecordDecl::field_iterator I = RD->field_begin(),
+ E = RD->field_end();
+ I != E; ++I) {
+ FieldDecl *Field = *I;
+ llvm::DIType FieldTy = getOrCreateType(Field->getType(), Unit);
+ llvm::StringRef FieldName = Field->getName();
+
+ // Ignore unnamed fields. Do not ignore unnamed records.
+ if (FieldName.empty() && !isa<RecordType>(Field->getType()))
+ continue;
+
+ // Use VarDecl's Tag, Scope and Line number.
+ llvm::DIVariable D =
+ DebugFactory.CreateVariable(Tag, llvm::DIDescriptor(Scope),
+ FieldName, Unit, Line, FieldTy,
+ CGM.getLangOptions().Optimize, Flags);
+
+ // Insert an llvm.dbg.declare into the current block.
+ llvm::Instruction *Call =
+ DebugFactory.InsertDeclare(Storage, D, Builder.GetInsertBlock());
+
+ Call->setDebugLoc(llvm::DebugLoc::get(Line, Column, Scope));
+ }
+ }
}
/// EmitDeclare - Emit local variable declaration debug info.