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Fix problem due to not copying a node. It still needs more analysis, but this patch is an improvement in that it fixes known problematic cases and doesn't seem to introduce new ones.

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Sei Lisa 2015-06-14 05:11:32 +02:00
parent aaa8d3b7f4
commit cdc3a63179
1 changed files with 12 additions and 4 deletions
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16
lslopt/lsldeadcode.py
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@ -411,12 +411,20 @@ class deadcode(object):
sym = self.SymbolReplacedOrDeleted(node)
if sym:
# Mark as executed, so it isn't optimized out.
new = sym['W']
# Make shallow copy.
# TODO: Needs more analysis to see if it's correct or not.
# (See constant_anomaly.lsl)
new = sym['W'].copy()
if 'orig' in new:
del new['orig']
new['X'] = True
SEF = 'SEF' in sym['W']
if SEF:
new['SEF'] = True
# this part makes no sense?
#SEF = 'SEF' in sym['W']
#if SEF:
# new['SEF'] = True
if new['t'] != node['t']:
new = self.Cast(new, node['t'])
curnode['ch'][index] = node = new