Stub out CodeGenFunction::EmitObjCForCollectionStmt.
Add CodeGenFunction::EmitMemSetToZero and make AggExprEmitter::EmitAggregateClear use it.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@55573 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CodeGenFunction.cpp b/lib/CodeGen/CodeGenFunction.cpp
index 909486a..09f3140 100644
--- a/lib/CodeGen/CodeGenFunction.cpp
+++ b/lib/CodeGen/CodeGenFunction.cpp
@@ -201,6 +201,26 @@
return LabelIDs.insert(std::make_pair(L, LabelIDs.size())).first->second;
}
+void CodeGenFunction::EmitMemSetToZero(llvm::Value *DestPtr, QualType Ty)
+{
+ const llvm::Type *BP = llvm::PointerType::getUnqual(llvm::Type::Int8Ty);
+ if (DestPtr->getType() != BP)
+ DestPtr = Builder.CreateBitCast(DestPtr, BP, "tmp");
+
+ // Get size and alignment info for this aggregate.
+ std::pair<uint64_t, unsigned> TypeInfo = getContext().getTypeInfo(Ty);
+
+ // FIXME: Handle variable sized types.
+ const llvm::Type *IntPtr = llvm::IntegerType::get(LLVMPointerWidth);
+
+ Builder.CreateCall4(CGM.getMemSetFn(), DestPtr,
+ llvm::ConstantInt::getNullValue(llvm::Type::Int8Ty),
+ // TypeInfo.first describes size in bits.
+ llvm::ConstantInt::get(IntPtr, TypeInfo.first/8),
+ llvm::ConstantInt::get(llvm::Type::Int32Ty,
+ TypeInfo.second/8));
+}
+
void CodeGenFunction::EmitIndirectSwitches() {
llvm::BasicBlock *Default;