Add SSSE3-optimized implementation of str{,n}cmp for x86-64.

1 files changed, 9 insertions, 0 deletions

diff --git a/ChangeLog b/ChangeLog
index 0defb11eca..abdb802d85 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,14 @@
 2009-08-07  Ulrich Drepper  <drepper@redhat.com>
 
+	* sysdeps/x86_64/strcmp.S: Add support to compile with
+	USE_SSSE3.  In this case palignr is used.
+	* sysdeps/x86_64/multiarch/strcmp.S (strcmp): If SSE4.3 is not
+	available but SSSE3 is, pick __str{,n}cmp_ssse3.
+	* sysdeps/x86_64/multiarch/Makefile [subdir=string] (sysdep_routines):
+	Add strcmp-ssse3 and strncmp-ssse3.
+	* sysdeps/x86_64/multiarch/strcmp-ssse3.S: New file.
+	* sysdeps/x86_64/multiarch/strncmp-ssse3.S: New file.
+
 	* sysdeps/x86_64/multiarch/strcspn-c.c (STRCSPN_SSE42): Avoid
 	warning through fake initialization.