Link integer emit and runtime

codegen-luau/runtime/runtime.lua

@@ -20,6 +20,17 @@ local function no_op(num)
 	return num
 end
 
+do
+	local num = {}
+
+	num.K_ZERO = I64.K_ZERO
+	num.K_ONE = I64.K_ONE
+
+	num.from_32 = num_from_u32
+
+	module.num = num
+end
+
 do
 	local add = {}
 	local sub = {}

codegen-luau/src/analyzer/localize.rs

@@ -1,7 +1,7 @@
 use std::collections::BTreeSet;
 
 use wasm_ast::{
-	node::{BinOp, CmpOp, Intermediate, LoadAt, StoreAt, UnOp},
+	node::{BinOp, CmpOp, Intermediate, LoadAt, StoreAt, UnOp, Value},
 	visit::{Driver, Visitor},
 };
 
@@ -24,6 +24,17 @@ impl Visitor for Visit {
 		self.result.insert(("store", name));
 	}
 
+	fn visit_value(&mut self, v: &Value) {
+		let name = match v {
+			Value::I64(0) => "K_ZERO",
+			Value::I64(1) => "K_ONE",
+			Value::I64(_) => "from_u32",
+			_ => return,
+		};
+
+		self.result.insert(("num", name));
+	}
+
 	fn visit_un_op(&mut self, v: &UnOp) {
 		let name = v.op.as_name();
 

codegen-luau/src/backend/expression.rs

@@ -66,6 +66,20 @@ impl Driver for MemoryGrow {
 	}
 }
 
+fn write_i64(number: i64, w: &mut dyn Write) -> Result<()> {
+	match number {
+		0 => write!(w, "num_K_ZERO "),
+		1 => write!(w, "num_K_ONE "),
+		_ => {
+			let list = number.to_ne_bytes();
+			let a = u32::from_ne_bytes(list[0..4].try_into().unwrap());
+			let b = u32::from_ne_bytes(list[4..8].try_into().unwrap());
+
+			write!(w, "num_from_u32({a}, {b}) ")
+		}
+	}
+}
+
 fn write_f32(number: f32, w: &mut dyn Write) -> Result<()> {
 	let sign = if number.is_sign_negative() { "-" } else { "" };
 
@@ -94,7 +108,7 @@ impl Driver for Value {
 	fn write(&self, _: &mut Manager, w: &mut dyn Write) -> Result<()> {
 		match self {
 			Self::I32(i) => write!(w, "{i} "),
-			Self::I64(i) => write!(w, "{i} "),
+			Self::I64(i) => write_i64(*i, w),
 			Self::F32(f) => write_f32(*f, w),
 			Self::F64(f) => write_f64(*f, w),
 		}

codegen-luau/src/backend/statement.rs

@@ -3,6 +3,7 @@ use std::{
 	ops::Range,
 };
 
+use parity_wasm::elements::ValueType;
 use wasm_ast::node::{
 	Backward, Br, BrIf, BrTable, Call, CallIndirect, Else, Forward, If, Intermediate, Memorize,
 	Return, SetGlobal, SetLocal, Statement, StoreAt,
@@ -262,13 +263,18 @@ fn write_variable_list(ir: &Intermediate, w: &mut dyn Write) -> Result<()> {
 
 	for data in &ir.local_data {
 		let range = total..total + usize::try_from(data.count()).unwrap();
+		let zero = if data.value_type() == ValueType::I64 {
+			"num_K_ZERO "
+		} else {
+			"0 "
+		};
 
 		total = range.end;
 
 		write!(w, "local ")?;
 		write_ascending("loc", range.clone(), w)?;
 		write!(w, " = ")?;
-		write_separated(range, |_, w| w.write_all(b"0"), w)?;
+		write_separated(range, |_, w| w.write_all(zero.as_bytes()), w)?;
 		write!(w, " ")?;
 	}