Jeffrey Harper <jhar...@yapdc.com> added the comment:
I think r82043 may also explain why 3.1.3 can fold the expression 2 * -3 into
-6 while 3.2rc3 cannot.
# test.py
from dis import dis
def y(): 2 * -3
print("dis y:")
dis(y)
C:\tmp>c:\Python32\python.exe --version
Python 3.2rc3
C:\tmp>c:\Python32\python.exe test.py
dis y:
3 0 LOAD_CONST 1 (2)
3 LOAD_CONST 3 (-3)
6 BINARY_MULTIPLY
7 POP_TOP
8 LOAD_CONST 0 (None)
11 RETURN_VALUE
C:\tmp>c:\Python31\python.exe --version
Python 3.1.3
C:\tmp>c:\Python31\python.exe test.py
dis y:
3 0 LOAD_CONST 3 (-6)
3 POP_TOP
4 LOAD_CONST 0 (None)
7 RETURN_VALUE
----------
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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue11244>
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