[Patches] [ python-Patches-1346214 ] Better dead code elimination for the AST compiler

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Fri May 26 13:34:19 CEST 2006


Patches item #1346214, was opened at 2005-11-02 18:21
Message generated for change (Comment added) made by gbrandl
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Category: Parser/Compiler
Group: Python 2.5
Status: Open
Resolution: None
Priority: 5
Submitted By: Rune Holm (titanstar)
Assigned to: Neal Norwitz (nnorwitz)
Summary: Better dead code elimination for the AST compiler

Initial Comment:
Here's a patch that adds dead code elimination for if
0: style statements, and improves the current dead code
elimination for while statements by not performing
elimination if the function is a generator.  If the
last yield statement from a generator is removed, the
generator is turned into a regular function, which
changes the semantics of the function.

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>Comment By: Georg Brandl (gbrandl)
Date: 2006-05-26 11:34

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Attaching new patch which does elimination for if 0, if 1
and if __debug__ correctly (visiting else clauses!) and
correctly recognizes functions mixing "return x" and "yield".

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Comment By: Rune Holm (titanstar)
Date: 2005-11-06 20:41

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Sorry, I'm new to the sourceforge patch tracker. The patch should be 
attached now.

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Comment By: Simon Dahlbacka (sdahlbac)
Date: 2005-11-06 19:08

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the actual patch is missing..

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