[PATCH v1 3/4] x86: Use `testb` for case-locale check in str{n}casecmp-sse42

[Noah Goldstein]

`testb` saves a bit of code size is the imm-operand can be encoded
1-bytes.

Tested on x86-64.
---
 sysdeps/x86_64/multiarch/strcmp-sse4_2.S | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sysdeps/x86_64/multiarch/strcmp-sse4_2.S b/sysdeps/x86_64/multiarch/strcmp-sse4_2.S
index dc6fc90e14..6b540ff894 100644
--- a/sysdeps/x86_64/multiarch/strcmp-sse4_2.S
+++ b/sysdeps/x86_64/multiarch/strcmp-sse4_2.S
@@ -119,7 +119,7 @@ STRCMP:
 #  else
 	mov	(%rdx), %RAX_LP
 #  endif
-	testl	$1, LOCALE_DATA_VALUES+_NL_CTYPE_NONASCII_CASE*SIZEOF_VALUES(%rax)
+	testb	$1, LOCALE_DATA_VALUES+_NL_CTYPE_NONASCII_CASE*SIZEOF_VALUES(%rax)
 	jne	__strcasecmp_l_nonascii
 # endif
 # ifdef USE_AS_STRNCASECMP_L
@@ -130,7 +130,7 @@ STRCMP:
 #  else
 	mov	(%rcx), %RAX_LP
 #  endif
-	testl	$1, LOCALE_DATA_VALUES+_NL_CTYPE_NONASCII_CASE*SIZEOF_VALUES(%rax)
+	testb	$1, LOCALE_DATA_VALUES+_NL_CTYPE_NONASCII_CASE*SIZEOF_VALUES(%rax)
 	jne	__strncasecmp_l_nonascii
 # endif
 
-- 
2.34.1