xo-alloc/include/xo/expression/PrimitiveInterface.hpp

64 lines
1.9 KiB
C++

/** @file PrimitiveInterface.hpp
*
* Author: Roland Conybeare
**/
#pragma once
#include "FunctionInterface.hpp"
#include "llvmintrinsic.hpp"
//#include <cstdint>
#include <type_traits>
namespace xo {
namespace ast {
class PrimitiveInterface : public FunctionInterface {
public:
using void_function_type = void (*)();
public:
PrimitiveInterface(TypeDescr fn_type)
: FunctionInterface(exprtype::primitive, fn_type) {}
/** downcast from Expression **/
static ref::brw<PrimitiveInterface> from(ref::brw<Expression> x) {
return ref::brw<PrimitiveInterface>::from(x);
}
/** if true, Jit will try to explicitly symbol for this primitive
* (instead of looking it up in host process).
* Don't know if this works.
* Do know it's not needed for ::sin(), ::sqrt().
* Do know that my extern "C" functions like ::mul_i32(), ::mul_f64()
* need something else.
**/
virtual bool explicit_symbol_def() const = 0;
/** function address for this primitive **/
virtual void_function_type function_address() const = 0;
/** get llvm intrinsic hint for this primitive **/
virtual llvmintrinsic intrinsic() const = 0;
// virtual const std::string & name() const;
// virtual int n_arg() const;
// virtual TypeDescr fn_retval() const;
// virtual TypeDescr fn_arg(uint32_t i) const;
// ----- Expression -----
virtual std::size_t visit_preorder(VisitFn visitor_fn) override {
visitor_fn(this);
return 1;
}
virtual void attach_envs(ref::brw<Environment> /*p*/) override {}
private:
}; /*PrimitiveInterface*/
} /*namespace ast*/
} /*namespace xo*/
/** end PrimitiveInterface.hpp **/