luaur_code_gen/functions/
call_length_helper.rs

1use crate::enums::size_x_64::SizeX64;
2use crate::functions::emit_update_base_emit_common_x_64::emit_update_base;
3use crate::functions::luau_reg_address::luau_reg_address;
4use crate::records::assembly_builder_x_64::AssemblyBuilderX64;
5use crate::records::ir_call_wrapper_x_64::IrCallWrapperX64;
6use crate::records::ir_data::k_invalid_inst_idx;
7use crate::records::ir_op::IrOp;
8use crate::records::ir_reg_alloc_x_64::IrRegAllocX64;
9use crate::records::native_context::NativeContext;
10use crate::records::operand_x_64::OperandX64;
11use crate::records::register_x_64::RegisterX64;
12
13const fn r_state() -> RegisterX64 {
14    RegisterX64 {
15        bits: (15u8 << RegisterX64::INDEX_SHIFT) | SizeX64::qword as u8,
16    }
17}
18
19const fn r_native_context() -> RegisterX64 {
20    RegisterX64 {
21        bits: (13u8 << RegisterX64::INDEX_SHIFT) | SizeX64::qword as u8,
22    }
23}
24
25pub fn call_length_helper(
26    regs: &mut IrRegAllocX64,
27    build: &mut AssemblyBuilderX64,
28    ra: i32,
29    rb: i32,
30) {
31    let mut call_wrap = IrCallWrapperX64::ir_call_wrapper_x_64_ir_call_wrapper_x_64(
32        regs,
33        build,
34        k_invalid_inst_idx,
35    );
36
37    call_wrap.add_argument_size_x_64_operand_x_64_ir_op(
38        SizeX64::qword,
39        OperandX64::reg(r_state()),
40        IrOp::ir_op(),
41    );
42    call_wrap.add_argument_size_x_64_operand_x_64_ir_op(
43        SizeX64::qword,
44        luau_reg_address(ra),
45        IrOp::ir_op(),
46    );
47    call_wrap.add_argument_size_x_64_operand_x_64_ir_op(
48        SizeX64::qword,
49        luau_reg_address(rb),
50        IrOp::ir_op(),
51    );
52
53    call_wrap.call(&OperandX64::mem(
54        SizeX64::qword,
55        RegisterX64::noreg,
56        1,
57        r_native_context(),
58        core::mem::offset_of!(NativeContext, luaV_dolen) as i32,
59    ));
60
61    emit_update_base(build);
62}
luaur_code_gen/functions/call_length_helper.rs

luaur_code_gen/functions/
call_length_helper.rs
