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comparison python/ppci/codegen/interferencegraph.py @ 313:04cf4d26a3bc

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Added constant function
author Windel Bouwman
date Wed, 18 Dec 2013 18:02:26 +0100
parents 6753763d3bec
children 38f5f298ce0e
comparison
equal deleted inserted replaced
312:2c9768114877 313:04cf4d26a3bc
39 n.live_in = n.uses | (n.live_out - n.defs) 39 n.live_in = n.uses | (n.live_out - n.defs)
40 if n.Succ: 40 if n.Succ:
41 n.live_out = set.union(*(s.live_in for s in n.Succ)) 41 n.live_out = set.union(*(s.live_in for s in n.Succ))
42 else: 42 else:
43 n.live_out = set() 43 n.live_out = set()
44 n.live_out = n.live_out | n.defs
44 change = change or (_in != n.live_in) or (_out != n.live_out) 45 change = change or (_in != n.live_in) or (_out != n.live_out)
45 46
46 # Construct interference graph: 47 # Construct interference graph:
47 for n in flowgraph.nodes: 48 for n in flowgraph.nodes:
48 for tmp in n.live_out: 49 for tmp in n.live_out: