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//===--- CGDeclCXX.cpp - Emit LLVM Code for C++ declarations --------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This contains code dealing with code generation of C++ declarations
//
//===----------------------------------------------------------------------===//
#include "CodeGenFunction.h"
using namespace clang;
using namespace CodeGen;
void CodeGenFunction::EmitCXXGlobalVarDeclInit(const VarDecl &D,
llvm::Constant *DeclPtr) {
assert(D.hasGlobalStorage() &&
"VarDecl must have global storage!");
const Expr *Init = D.getInit();
QualType T = D.getType();
bool isVolatile = getContext().getCanonicalType(T).isVolatileQualified();
if (T->isReferenceType()) {
ErrorUnsupported(Init, "global variable that binds to a reference");
} else if (!hasAggregateLLVMType(T)) {
llvm::Value *V = EmitScalarExpr(Init);
EmitStoreOfScalar(V, DeclPtr, isVolatile, T);
} else if (T->isAnyComplexType()) {
EmitComplexExprIntoAddr(Init, DeclPtr, isVolatile);
} else {
EmitAggExpr(Init, DeclPtr, isVolatile);
// Avoid generating destructor(s) for initialized objects.
if (!isa<CXXConstructExpr>(Init))
return;
const ConstantArrayType *Array = getContext().getAsConstantArrayType(T);
if (Array)
T = getContext().getBaseElementType(Array);
if (const RecordType *RT = T->getAs<RecordType>()) {
CXXRecordDecl *RD = cast<CXXRecordDecl>(RT->getDecl());
if (!RD->hasTrivialDestructor()) {
llvm::Constant *DtorFn;
if (Array) {
DtorFn = CodeGenFunction(CGM).GenerateCXXAggrDestructorHelper(
RD->getDestructor(getContext()),
Array, DeclPtr);
DeclPtr =
llvm::Constant::getNullValue(llvm::Type::getInt8PtrTy(VMContext));
}
else
DtorFn = CGM.GetAddrOfCXXDestructor(RD->getDestructor(getContext()),
Dtor_Complete);
EmitCXXGlobalDtorRegistration(DtorFn, DeclPtr);
}
}
}
}
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