luaur-code-gen 0.1.3

Native (A64/X64) code generation for Luau (Rust).
Documentation 
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use crate::enums::builtin_impl_type::BuiltinImplType;
use crate::enums::ir_cmd::IrCmd;
use crate::functions::builtin_check_double::builtin_check_double;
use crate::records::builtin_impl_result::BuiltinImplResult;
use crate::records::ir_builder::IrBuilder;
use crate::records::ir_op::IrOp;
use luaur_common::enums::luau_builtin_function::LuauBuiltinFunction;

pub fn translate_builtin_number_to_2_number(
    build: &mut IrBuilder,
    bfid: LuauBuiltinFunction,
    nparams: i32,
    ra: i32,
    arg: i32,
    _args: IrOp,
    nresults: i32,
    pcpos: i32,
) -> BuiltinImplResult {
    if nparams < 1 || nresults > 2 {
        return BuiltinImplResult {
            r#type: BuiltinImplType::None,
            actual_result_count: -1,
        };
    }

    let arg_op = build.vm_reg(arg as u8);
    builtin_check_double(build, arg_op, pcpos);

    let bfid_op = build.const_uint(bfid as u32);
    let ra_op = build.vm_reg(ra as u8);
    let nresults_op = build.const_int(if nresults == 1 { 1 } else { 2 });

    build.inst_ir_cmd_ir_op_ir_op_ir_op_ir_op(IrCmd::FASTCALL, bfid_op, ra_op, arg_op, nresults_op);

    BuiltinImplResult {
        r#type: BuiltinImplType::Full,
        actual_result_count: 2,
    }
}