mirror/glibc
2
0
Fork 0
mirror of git://sourceware.org/git/glibc.git synced 2024-12-27 04:41:02 +08:00
Code Issues Packages Projects Releases Wiki Activity

Don't go through unrolled loop if we would go through it only once.

Browse Source
This commit is contained in:
Ulrich Drepper 2000-12-27 23:31:49 +00:00
parent 22fea1a1b6
commit 1c7f9c9395
1 changed files with 3 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
sysdeps/alpha/alphaev6/memcpy.S
View File

@ -16,7 +16,7 @@
License along with the GNU C Library; see the file COPYING.LIB. If not, License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */ Boston, MA 02111-1307, USA. */
/* /*
* Much of the information about 21264 scheduling/coding comes from: * Much of the information about 21264 scheduling/coding comes from:
* Compiler Writer's Guide for the Alpha 21264 * Compiler Writer's Guide for the Alpha 21264
@ -86,9 +86,9 @@ $single_head_quad:
$do_unroll: $do_unroll:
addq $16, 64, $7 # E : Initial (+1 trip) wh64 address addq $16, 64, $7 # E : Initial (+1 trip) wh64 address
cmple $18, 63, $1 # E : Can we go through the unrolled loop? cmple $18, 127, $1 # E : Can we go through the unrolled loop?
bne $1, $tail_quads # U : Nope bne $1, $tail_quads # U : Nope
nop # E : nop # E :
$unroll_body: $unroll_body:
wh64 ($7) # L1 : memory subsystem hint: 64 bytes at wh64 ($7) # L1 : memory subsystem hint: 64 bytes at