FazBrowse GitHub Viewer | Trending |
URL:
| Home
Tools: [Download Repo ZIP]   [Original HTTPS Page]

GH-130415: Narrow `int` to `0` based on boolean tests by Klaus117 · Pull Request #130772 · python/cpython · GitHub

  1. python
  2. cpython

Repository navigation

GH-130415: Narrow int to 0 based on boolean tests #130772

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
brandtbucher merged 4 commits into from
Mar 4, 2025
Conversation 1 Commits 4 Checks 0 Files changed
Merged

GH-130415: Narrow int to 0 based on boolean tests #130772

Changes from 1 commit
Commits
Show all changes
4 commits
Select commit Hold shift + click to select a range
c9cebc9
Assign truthiness to integers when known from false result
Klaus117 Mar 3, 2025
976b5d8
📜🤖 Added by blurb_it.
blurb-it[bot] Mar 3, 2025
4f9941b
add name to contributors
Klaus117 Mar 3, 2025
daed095
update definition of false variable for test case
Klaus117 Mar 3, 2025
File filter

Filter by extension

Filter by extension .py  (1) All 1 file type selected
Viewed files
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Unified
Split
Hide whitespace
Diff view
Unified
Split
Hide whitespace
Prev Previous commit
update definition of false variable for test case
  • Loading branch information
Klaus117 committed Mar 3, 2025
commit daed0954dcba3dd333f5db44d4e3235580fa70e5
3 changes: 2 additions & 1 deletion Lib/test/test_capi/test_opt.py
Show comments
View file
Open in desktop
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters. Learn more about bidirectional Unicode characters
Show hidden characters
Original file line number Diff line number Diff line change
Expand Up @@ -1504,7 +1504,8 @@ def f(n):
trace = []
for i in range(n):
# zero is always (int) 0, but we can only prove that it's a integer:
zero = i - i
false = i == TIER2_THRESHOLD # this will always be false, while hopefully still fooling optimizer improvements
zero = false + 0 # this should always set the variable zero equal to 0
trace.append("A")
if not zero: # Kept.
trace.append("B")
Expand Down
Back | FazBrowse Home | New Git URL