Reimplement OFFUNISKIP

Now that previous commits have made it fast to find the position of the
first set bit in a word, we can use a forumla to find how many bytes the
UTF-8 of that will occupy.  This allows for simplification of this
macro, removing several conditionals

1 files changed, 8 insertions, 0 deletions

diff --git a/inline.h b/inline.h
index c57cb031d2..e70b7e5e35 100644
--- a/inline.h
+++ b/inline.h
@@ -939,6 +939,14 @@ Perl_msbit_pos32(U32 word)
 
 }
 
+#if UVSIZE == U64SIZE
+#  define msbit_pos(word)  msbit_pos64(word)
+#  define lsbit_pos(word)  lsbit_pos64(word)
+#elif UVSIZE == U32SIZE
+#  define msbit_pos(word)  msbit_pos32(word)
+#  define lsbit_pos(word)  lsbit_pos32(word)
+#endif
+
 #ifdef U64TYPE  /* HAS_QUAD not usable outside the core */
 
 PERL_STATIC_INLINE unsigned