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Created on 2013-04-13 17:17 by Stephen.Tu, last changed 2022-04-11 14:57 by admin. This issue is now closed.
| Files | ||||
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| File name | Uploaded | Description | Edit | |
| constcheck.patch | Stephen.Tu, 2013-04-13 17:17 | review | ||
| Messages (3) | |||
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| msg186767 - (view) | Author: Stephen Tu (Stephen.Tu) * | Date: 2013-04-13 17:17 | |
Here's a simple patch to optimize away constant boolean conjunctions/disjunctions. for example:
def foo():
if 1 and 0:
print("hi")
now disassembles into:
7 0 LOAD_CONST 0 (None)
3 RETURN_VALUE
while I realize more general techniques for achieving this have been proposed (ie http://bugs.python.org/issue1346238), this is a very simple, self-contained patch.
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| msg187383 - (view) | Author: Benjamin Peterson (benjamin.peterson) *  |
Date: 2013-04-19 19:10 | |
Thank you for the patch. However, I don't think such "optimizations" are particularly useful. |
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| msg359785 - (view) | Author: Zackery Spytz (ZackerySpytz) *  |
Date: 2020-01-11 06:47 | |
I think this issue should be closed. |
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| History | |||
|---|---|---|---|
| Date | User | Action | Args |
| 2022-04-11 14:57:44 | admin | set | github: 61918 |
| 2020-01-11 06:57:03 | benjamin.peterson | set | status: open -> closed resolution: rejected stage: resolved |
| 2020-01-11 06:47:52 | ZackerySpytz | set | nosy:
+ ZackerySpytz messages: + msg359785 |
| 2013-04-19 19:10:21 | benjamin.peterson | set | messages: + msg187383 |
| 2013-04-19 19:02:38 | terry.reedy | set | nosy:
+ brett.cannon, georg.brandl, ncoghlan, benjamin.peterson |
| 2013-04-13 17:26:22 | nedbat | set | nosy:
+ nedbat |
| 2013-04-13 17:17:57 | Stephen.Tu | create | |