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Diffstat (limited to 'ChangeLog')
| -rw-r--r-- | ChangeLog | 14 |
1 files changed, 14 insertions, 0 deletions
@@ -1,3 +1,17 @@ +Wed Jun 29 03:34:41 2016 NARUSE, Yui <naruse@ruby-lang.org> + + * bignum.c (rb_big2ulong): the old logic seems to try to avoid + calculating `-(long)(num-1)-1` if `num` is not LONG_MIN. (Note that + `-LONG_MIN` may be larger than LONG_MAX) But C compilers can + optimize it into single NEG instruction. + Therefore those two conditions can be single if-body. + + * bignum.c (rb_big2long): ditto. + + * bignum.c (rb_big2ull): ditto. + + * bignum.c (rb_big2ll): ditto. + Tue Jun 28 22:55:00 2016 Nobuyoshi Nakada <nobu@ruby-lang.org> * lib/pstore.rb (PStore::CHECKSUM_ALGO): extract the algorithm for |