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transforms.inferencer: do not unnecessarily mutate typedtree.

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This caused the hash to change after every iteration of inference,
if the result of any coercion was an integer of indefinite width.
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whitequark 2017-03-02 16:15:37 +00:00 committed by Sebastien Bourdeauducq
parent 007ae00459
commit 90aeb76a2c
1 changed files with 2 additions and 1 deletions
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3
artiq/compiler/transforms/inferencer.py
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@ -293,7 +293,8 @@ class Inferencer(algorithm.Visitor):
return coerced_node
elif isinstance(coerced_node, asttyped.CoerceT):
node = coerced_node
node.type, node.other_value = typ, other_node
node.type.unify(typ)
node.other_value = other_node
else:
node = asttyped.CoerceT(type=typ, value=coerced_node, other_value=other_node,
loc=coerced_node.loc)