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Add some basic support for generating C++ member functions.

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llvm-svn: 68425
This commit is contained in:
Anders Carlsson
2009-04-04 20:47:02 +00:00
parent 1dfc5f51c8
commit 468fa6366b
4 changed files with 59 additions and 12 deletions
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31
clang/lib/CodeGen/CodeGenModule.cpp
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@@ -820,18 +820,26 @@ void CodeGenModule::EmitGlobalVarDefinition(const VarDecl *D) {
void CodeGenModule::EmitGlobalFunctionDefinition(const FunctionDecl *D) {
const llvm::FunctionType *Ty =
cast<llvm::FunctionType>(getTypes().ConvertType(D->getType()));
const llvm::FunctionType *Ty;
// As a special case, make sure that definitions of K&R function
// "type foo()" aren't declared as varargs (which forces the backend
// to do unnecessary work).
if (D->getType()->isFunctionNoProtoType()) {
assert(Ty->isVarArg() && "Didn't lower type as expected");
// Due to stret, the lowered function could have arguments. Just create the
// same type as was lowered by ConvertType but strip off the varargs bit.
std::vector<const llvm::Type*> Args(Ty->param_begin(), Ty->param_end());
Ty = llvm::FunctionType::get(Ty->getReturnType(), Args, false);
if (const CXXMethodDecl *MD = dyn_cast<CXXMethodDecl>(D)) {
bool isVariadic = D->getType()->getAsFunctionProtoType()->isVariadic();
Ty = getTypes().GetFunctionType(getTypes().getFunctionInfo(MD), isVariadic);
} else {
Ty = cast<llvm::FunctionType>(getTypes().ConvertType(D->getType()));
// As a special case, make sure that definitions of K&R function
// "type foo()" aren't declared as varargs (which forces the backend
// to do unnecessary work).
if (D->getType()->isFunctionNoProtoType()) {
assert(Ty->isVarArg() && "Didn't lower type as expected");
// Due to stret, the lowered function could have arguments.
// Just create the same type as was lowered by ConvertType
// but strip off the varargs bit.
std::vector<const llvm::Type*> Args(Ty->param_begin(), Ty->param_end());
Ty = llvm::FunctionType::get(Ty->getReturnType(), Args, false);
}
}
// Get or create the prototype for teh function.
@@ -1305,6 +1313,7 @@ void CodeGenModule::EmitTopLevelDecl(Decl *D) {
return;
switch (D->getKind()) {
case Decl::CXXMethod:
case Decl::Function:
case Decl::Var:
EmitGlobal(cast<ValueDecl>(D));