commit c6b292cdeee689f0bfac6c1e2c2d4e4e01fa8d9e
author Victor Stinner <vstinner@python.org> Mon Jun 08 16:30:33 2020 +0200
committer GitHub <noreply@github.com> Mon Jun 08 16:30:33 2020 +0200
tree 4a7686465f3ed4a171382d4717ad558d82413951
parent 301f0d4ff9b6bd60599eea0612904f65a92e6dd9

bpo-29882: Add _Py_popcount32() function (GH-20518)

* Rename pycore_byteswap.h to pycore_bitutils.h.
* Move popcount_digit() to pycore_bitutils.h as _Py_popcount32().
* _Py_popcount32() uses GCC and clang builtin function if available.
* Add unit tests to _Py_popcount32().

Objects/stringlib/codecs.h

diff --git a/Objects/stringlib/codecs.h b/Objects/stringlib/codecs.h
index 9b2a29b..197605b 100644
--- a/Objects/stringlib/codecs.h
+++ b/Objects/stringlib/codecs.h
@@ -4,7 +4,7 @@
 # error "codecs.h is specific to Unicode"
 #endif
 
-#include "pycore_byteswap.h"      // _Py_bswap32()
+#include "pycore_bitutils.h"      // _Py_bswap32()
 
 /* Mask to quickly check whether a C 'long' contains a
    non-ASCII, UTF8-encoded char. */