llvm::Value * Generator::visit(FunctionCall & node)
{
auto function = module->getFunction(node.getVirtualName());
if (function == nullptr) {
if (funcAlias.find(node.getVirtualName()) == funcAlias.end()) {
throw std::runtime_error("Function not defined: " + node.name);
}
function = funcAlias[node.getVirtualName()];
}
// TODO: check arg compatibility.
std::vector<llvm::Value *> values;
for (auto i : node.arguments) {
auto value = i->accept(this);
// variadic function promotion.
if (function->isVarArg() && value->getType()->isFloatTy()) {
value = typeSys.cast(value, typeSys.doubleTy, builder.GetInsertBlock());
}
values.push_back(value);
}
return builder.CreateCall(function, values);
}
std::size_t FunctionAttributes::hash() const {
Hasher hasher;
hasher.add(isVarArg());
hasher.add(isMethod());
hasher.add(isTemplated());
hasher.add(noExceptPredicate());
return hasher.get();
}
std::string FunctionAttributes::toString() const {
return makeString("FunctionAttributes("
"isVarArg: %s, "
"isMethod: %s, "
"isTemplated: %s, "
"noExceptPredicate: %s)",
isVarArg() ? "true" : "false",
isMethod() ? "true" : "false",
isTemplated() ? "true" : "false",
noExceptPredicate().toString().c_str());
}
bool FunctionAttributes::operator==(const FunctionAttributes& other) const {
return isVarArg() == other.isVarArg() &&
isMethod() == other.isMethod() &&
isTemplated() == other.isTemplated() &&
noExceptPredicate() == other.noExceptPredicate();
}
FunctionAttributes FunctionAttributes::copy() const {
return FunctionAttributes(isVarArg(),
isMethod(),
isTemplated(),
noExceptPredicate().copy());
}
