From b0ccfc6309388e5ef2915cdb8506b91165b7de87 Mon Sep 17 00:00:00 2001
From: Emi Simpson <emi@alchemi.dev>
Date: Sat, 16 Mar 2024 22:23:06 -0400
Subject: [PATCH] Optimization: Special case for simplying recursive let
 bindings codegen

---
 ir.py | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/ir.py b/ir.py
index 48797a9..bbf5fd9 100644
--- a/ir.py
+++ b/ir.py
@@ -183,7 +183,10 @@ class LetBinding:
 
 	def codegen(self) -> str:
 		rhs_cg = self.rhs.codegen_named(self.lhs) if isinstance(self.rhs, MonoFunc) else self.rhs.codegen()
-		return f'({self.lhs}=>{self.body.codegen()})({rhs_cg})'
+		if self.body == Variable(self.lhs):
+			return rhs_cg
+		else:
+			return f'({self.lhs}=>{self.body.codegen()})({rhs_cg})'
 
 @dataclass
 class Application: