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comparison python/ppci/ir2tree.py @ 323:e9fe6988497c

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Used burg for generating expressions
author Windel Bouwman
date Thu, 30 Jan 2014 19:03:24 +0100
parents 44f336460c2a
children 5477e499b039
comparison
equal deleted inserted replaced
322:44f336460c2a 323:e9fe6988497c
1 from tree import Tree 1 from tree import Tree
2 from . import ir 2 from . import ir
3
4 """ Create a tree from ir code. """
3 5
4 f_map = {} # Mapping from types to tree creation functions 6 f_map = {} # Mapping from types to tree creation functions
5 7
6 def register(tp): 8 def register(tp):
7 """ Register a function for type tp """ 9 """ Register a function for type tp """
33 def mem_to_tree(e): 35 def mem_to_tree(e):
34 return Tree('MEMI32', makeTree(e.e)) 36 return Tree('MEMI32', makeTree(e.e))
35 37
36 @register(ir.Call) 38 @register(ir.Call)
37 def call_to_tree(e): 39 def call_to_tree(e):
38 return Tree('CALL') 40 t = Tree('CALL')
41 t.value = e
42 return t
39 43
40 def makeTree(ir_node): 44 def makeTree(ir_node):
41 """ Transform an ir node into a tree usable for matching """ 45 """ Transform an ir node into a tree usable for matching """
42 return f_map[type(ir_node)](ir_node) 46 return f_map[type(ir_node)](ir_node)