diff options
Diffstat (limited to 'libmpx/mpxwrap/mpx_wrappers.c')
| -rw-r--r-- | libmpx/mpxwrap/mpx_wrappers.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/libmpx/mpxwrap/mpx_wrappers.c b/libmpx/mpxwrap/mpx_wrappers.c index ffa7e7ee5ff..d4c83ef484c 100644 --- a/libmpx/mpxwrap/mpx_wrappers.c +++ b/libmpx/mpxwrap/mpx_wrappers.c @@ -483,7 +483,18 @@ __mpx_wrapper_memmove (void *dst, const void *src, size_t n) __bnd_chk_ptr_bounds (dst, n); __bnd_chk_ptr_bounds (src, n); + /* When we copy exactly one pointer it is faster to + just use bndldx + bndstx. */ + if (n == sizeof (void *)) + { + void *const *s = (void *const *) src; + void **d = (void **) dst; + *d = *s; + return dst; + } + memmove (dst, src, n); + /* Not necessary to copy bounds if size is less then size of pointer or SRC==DST. */ if ((n >= sizeof (void *)) && (src != dst)) |