we have a basic optimizer going! lets goo!!!!!

optimizers/optimizer.py

@@ -1,11 +1,81 @@
+from typing import List, Dict, NamedTuple, Union
+import re
+
+
+class Instruction(NamedTuple):
+    opcode: str
+    operands: List[str]
+
+class PeepholeRule(NamedTuple):
+    match: List[Instruction]
+    replace: List[Instruction]
+
 class Optimizer:
-	def __init__(self, lines: list[str]):
+	def __init__(self, lines: list[str], window_size: int = 5):
 		self.lines = lines
 		self.final_str = ""
 
-		# sliding window pos
-		self.pos = 0
+		# sliding window
+		self.window_size = window_size
+		self.rules: list[PeepholeRule] = []
+
+	def match_instruction(self, pattern: Instruction, instr: Instruction, bindings: Dict[str, str]) -> bool:
+		if pattern.opcode != instr.opcode:
+			return False
+		if len(pattern.operands) != len(instr.operands):
+			return False
+
+		for p_op, i_op in zip(pattern.operands, instr.operands):
+			if p_op.isidentifier():  # wildcard like 'x'
+				if p_op in bindings:
+					if bindings[p_op] != i_op:
+						return False
+				else:
+					bindings[p_op] = i_op
+			else:
+				if p_op != i_op:
+					return False
+		return True
+
+	def match_window(self, patterns: List[Instruction], window: List[Instruction]) -> Union[Dict[str, str], None]:
+		if len(patterns) != len(window):
+			return None
+		bindings = {}
+		for p, i in zip(patterns, window):
+			if not self.match_instruction(p, i, bindings):
+				return None
+		return bindings
 		
+	def parse_instruction(self, line: str) -> Instruction:
+		# Assumes format: OPCODE operand1, operand2
+		parts = line.strip().split(None, 1)
+		opcode = parts[0]
+		operands = re.split(r'\s*,\s*', parts[1]) if len(parts) > 1 else []
+		return Instruction(opcode, operands)
+	
+	def apply_replacement(self, replacements: List[Instruction], bindings: dict[str, str]) -> List[Instruction]:
+		result = []
+		for pattern in replacements:
+			operands = [bindings.get(op, op) for op in pattern.operands]
+			result.append(Instruction(pattern.opcode, operands))
+		return result
 
 	def peephole(self):
-		pass
+		self.lines = [self.parse_instruction(line) for line in self.lines]
+
+		i = 0
+		while i < len(self.lines):
+			matched = False
+			for rule in self.rules:
+				window = self.lines[i:i+len(rule.match)]
+				bindings = self.match_window(rule.match, window)
+				if bindings is not None:
+					replacement_instrs = self.apply_replacement(rule.replace, bindings)
+					self.lines[i:i + len(rule.match)] = replacement_instrs
+					matched = True
+					break
+			if not matched:
+				i += 1
+		
+		self.lines = [f"{line.opcode} {', '.join(line.operands)}\n" for line in self.lines]
+		return self.lines