8000 gh-129149: Add fast path for medium-size integers in `PyLong_FromSsize_t()` by chris-eibl · Pull Request #129301 · python/cpython · GitHub
[go: up one dir, main page]
Skip to content

gh-129149: Add fast path for medium-size integers in PyLong_FromSsize_t() #129301

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
merged 13 commits into from
Mar 13, 2025
Merged

gh-129149: Add fast path for medium-size integers in PyLong_FromSsize_t() #129301

Changes from 1 commit
Commits
Show all changes
13 commits
Select commit Hold shift + click to select a range
37bddee
gh-129149: add macro PYLONG_FROM_INT
chris-eibl Jan 25, 2025
b4ee2af
Add UINT_TYPE to the macro PYLONG_FROM_INT.
chris-eibl Jan 25, 2025
cf9244c
blurb it
chris-eibl Jan 25, 2025
ed04f4a
Address Sergey's review
chris-eibl Jan 26, 2025
c59bef0
Address Sergey's review
chris-eibl Jan 26, 2025
98b3668
Address Sergey's review
chris-eibl Jan 26, 2025
ff57cf7
More stylistic syncs with PYLONG_FROM_UINT
chris-eibl Jan 26, 2025
3a5152f
Merge branch 'main' into gh-129149
skirpichev Jan 26, 2025
8331f8b
Merge branch 'main' into gh-129149
chris-eibl Jan 29, 2025
f0691c5
address PEP-7 by vertically aligning \
chris-eibl Mar 1, 2025
261dcc5
test more medium-size integers in all test_long_as*
chris-eibl Mar 1, 2025
fda2844
Merge branch 'main' into gh-129149
chris-eibl Mar 1, 2025
89ee42b
Merge branch 'main' into gh-129149
chris-eibl Mar 12, 2025
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments. 8000
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
Prev Previous commit
Next Next commit
Address Sergey's review 
Co-authored-by: Sergey B Kirpichev <skirpichev@gmail.com>
  • Loading branch information
@chris-eibl @skirpichev
chris-eibl and skirpichev authored Jan 26, 2025
commit 98b3668e43809ce5f1338dd118888e0e7841b6f6
6 changes: 3 additions & 3 deletions Objects/longobject.c
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -342,10 +342,10 @@ _PyLong_Negate(PyLongObject **x_p)
return _PyLong_FromMedium((sdigit)ival); \
} \
/* Count digits (at least two - smaller cases were handled above). */ \
abs_ival = ival < 0 ? 0U-(UINT_TYPE)ival : (UINT_TYPE)ival; \
UINT_TYPE abs_ival = ival < 0 ? 0U-(UINT_TYPE)ival : (UINT_TYPE)ival; \
/* Do shift in two steps to avoid possible undefined behavior. */ \
t = abs_ival >> PyLong_SHIFT >> PyLong_SHIFT; \
ndigits = 2; \
UINT_TYPE t = abs_ival >> PyLong_SHIFT >> PyLong_SHIFT; \
int ndigits = 2; \
while (t) { \
++ndigits; \
t >>= PyLong_SHIFT; \
Expand Down
Loading
0