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::functions::builtin_load_double::builtin_load_double;
use crate::functions::vm_reg_op::vm_reg_op;
use crate::records::builtin_impl_result::BuiltinImplResult;
use crate::records::ir_builder::IrBuilder;
use crate::records::ir_op::IrOp;

pub fn translate_builtin_math_min_max(
    build: &mut IrBuilder,
    cmd: IrCmd,
    nparams: i32,
    ra: i32,
    arg: i32,
    args: IrOp,
    arg3: IrOp,
    nresults: i32,
    pcpos: i32,
) -> BuiltinImplResult {
    const K_MIN_MAX_UNROLLED_PARAMS: i32 = 16;

    if nparams < 2 || nparams > K_MIN_MAX_UNROLLED_PARAMS || nresults > 1 {
        return BuiltinImplResult {
            r#type: BuiltinImplType::None,
            actual_result_count: -1,
        };
    }

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

    if nparams >= 3 {
        builtin_check_double(build, arg3, pcpos);
    }

    let args_base = vm_reg_op(args);
    for i in 4..=nparams {
        let reg = build.vm_reg((args_base + (i - 2)) as u8);
        builtin_check_double(build, reg, pcpos);
    }

    let varg1 = builtin_load_double(build, arg_reg);
    let varg2 = builtin_load_double(build, args);

    let mut res = build.inst_ir_cmd_ir_op_ir_op(cmd, varg2, varg1);

    if nparams >= 3 {
        let arg = builtin_load_double(build, arg3);
        res = build.inst_ir_cmd_ir_op_ir_op(cmd, arg, res);
    }

    for i in 4..=nparams {
        let reg = build.vm_reg((args_base + (i - 2)) as u8);
        let arg = builtin_load_double(build, reg);
        res = build.inst_ir_cmd_ir_op_ir_op(cmd, arg, res);
    }

    let ra_reg = build.vm_reg(ra as u8);
    build.inst_ir_cmd_ir_op_ir_op(IrCmd::STORE_DOUBLE, ra_reg, res);

    if ra != arg {
        let tag_number = build.const_tag(3);
        build.inst_ir_cmd_ir_op_ir_op(IrCmd::STORE_TAG, ra_reg, tag_number);
    }

    BuiltinImplResult {
        r#type: BuiltinImplType::Full,
        actual_result_count: 1,
    }
}