New submission from Sylvain Defresne <sdefre...@gmail.com>:
Python compiler detect some constant expression used in if / while statement
and evaluate them at compilation. However, it does not perform some simple
optimisation (evaluating not unary expression or checking if and or or
expression are constant because of the first expression).
The attached patch allow Python to detect some more constant expression, and to
optimise test like the following:
if __debug__ and x:
pass
if not __debug__:
pass
----------
components: Interpreter Core
files: compile.diff
keywords: patch
messages: 97631
nosy: sdefresne
severity: normal
status: open
title: Optimisation of if with constant expression
type: performance
versions: Python 3.2
Added file: http://bugs.python.org/file15836/compile.diff
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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue7682>
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