string.c (count_utf8_lead_bytes_with_word): Use __builtin_popcount only if it can use SSE 4.2 POPCNT whose latency is 3 cycle.
internal.h (rb_popcount64): use __builtin_popcountll because now it is in fast path.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@54894 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Added by naruse (Yui NARUSE) about 9 years ago
string.c (count_utf8_lead_bytes_with_word): Use __builtin_popcount
only if it can use SSE 4.2 POPCNT whose latency is 3 cycle.
internal.h (rb_popcount64): use __builtin_popcountll because now
it is in fast path.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@54894 b2dd03c8-39d4-4d8f-98ff-823fe69b080e