https://bugzilla.redhat.com/show_bug.cgi?id=651638

2010-11-09  H.J. Lu  <hongjiu.lu@intel.com>

	[BZ #12205]
	* string/test-strncasecmp.c (check_result): New function.
	(do_one_test): Use it.
	(check1): New function.
	(test_main): Use it.

	* sysdeps/i386/i686/multiarch/strcmp.S (nibble_ashr_use_sse4_2_exit):
	Support strcasecmp and strncasecmp.

diff --git a/sysdeps/x86_64/multiarch/strcmp.S b/sysdeps/x86_64/multiarch/strcmp.S
index 54e5bbc..1859289 100644
--- a/sysdeps/x86_64/multiarch/strcmp.S
+++ b/sysdeps/x86_64/multiarch/strcmp.S
@@ -1809,7 +1809,13 @@ LABEL(nibble_ashr_15_use_sse4_2):
 	ja	LABEL(loop_ashr_15_use_sse4_2)
 
 LABEL(nibble_ashr_use_sse4_2_exit):
+# if !defined USE_AS_STRCASECMP_L && !defined USE_AS_STRNCASECMP_L
 	pcmpistri      $0x1a,(%rsi,%rdx), %xmm0
+# else
+	movdqa	(%rsi,%rdx), %xmm1
+	TOLOWER (%xmm0, %xmm1)
+	pcmpistri $0x1a, %xmm1, %xmm0
+# endif
 	.p2align 4
 LABEL(use_sse4_2_exit):
 	jnc	LABEL(strcmp_exitz_sse4_2)