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GNU C Library master sources branch master updated. glibc-2.18-13-g46ed103
- From: ldmitrie at sourceware dot org
- To: glibc-cvs at sourceware dot org
- Date: 21 Aug 2013 14:30:29 -0000
- Subject: GNU C Library master sources branch master updated. glibc-2.18-13-g46ed103
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http://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=46ed103824ff42668ddfc36c1b3fdb9219d48eee
commit 46ed103824ff42668ddfc36c1b3fdb9219d48eee
Author: Liubov Dmitrieva <ldmitrie@sourceware.org>
Date: Wed Aug 21 18:24:44 2013 +0400
i686: Skip SSE4_2 version for strcmp, strncmp, strncase, strcasecmp
if bit_Slow_SSE4_2 is set.
diff --git a/ChangeLog b/ChangeLog
index 5340c40..a875ac3 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+2013-08-21 Liubov Dmitrieva <liubov.dmitrieva@intel.com>
+
+ * sysdeps/i386/i686/multiarch/strcmp.S: Skip SSE4_2
+ version if bit_Slow_SSE4_2 is set.
+ * sysdeps/i386/i686/multiarch/strncase.S: Likewise.
+ * sysdeps/i386/i686/multiarch/strcasecmp.S: Likewise.
+
2013-07-23 Adhemerval Zanella <azanella@linux.vnet.ibm.com>
[BZ #15867]
diff --git a/sysdeps/i386/i686/multiarch/strcasecmp.S b/sysdeps/i386/i686/multiarch/strcasecmp.S
index 2444af2..25de4da 100644
--- a/sysdeps/i386/i686/multiarch/strcasecmp.S
+++ b/sysdeps/i386/i686/multiarch/strcasecmp.S
@@ -37,6 +37,8 @@ ENTRY(__strcasecmp)
leal __strcasecmp_ssse3@GOTOFF(%ebx), %eax
testl $bit_SSE4_2, CPUID_OFFSET+index_SSE4_2+__cpu_features@GOTOFF(%ebx)
jz 2f
+ testl $bit_Slow_SSE4_2, CPUID_OFFSET+index_Slow_SSE4_2+__cpu_features@GOTOFF(%ebx)
+ jnz 2f
leal __strcasecmp_sse4_2@GOTOFF(%ebx), %eax
2: popl %ebx
cfi_adjust_cfa_offset (-4)
@@ -56,6 +58,8 @@ ENTRY(__strcasecmp)
leal __strcasecmp_ssse3, %eax
testl $bit_SSE4_2, CPUID_OFFSET+index_SSE4_2+__cpu_features
jz 2f
+ testl $bit_Slow_SSE4_2, CPUID_OFFSET+index_Slow_SSE4_2+__cpu_features
+ jnz 2f
leal __strcasecmp_sse4_2, %eax
2: ret
END(__strcasecmp)
diff --git a/sysdeps/i386/i686/multiarch/strcmp.S b/sysdeps/i386/i686/multiarch/strcmp.S
index 7dc2cef..41dd3b3 100644
--- a/sysdeps/i386/i686/multiarch/strcmp.S
+++ b/sysdeps/i386/i686/multiarch/strcmp.S
@@ -68,6 +68,8 @@ ENTRY(STRCMP)
leal __STRCMP_SSSE3@GOTOFF(%ebx), %eax
testl $bit_SSE4_2, CPUID_OFFSET+index_SSE4_2+__cpu_features@GOTOFF(%ebx)
jz 2f
+ testl $bit_Slow_SSE4_2, CPUID_OFFSET+index_Slow_SSE4_2+__cpu_features@GOTOFF(%ebx)
+ jnz 2f
leal __STRCMP_SSE4_2@GOTOFF(%ebx), %eax
2: popl %ebx
cfi_adjust_cfa_offset (-4)
@@ -87,6 +89,8 @@ ENTRY(STRCMP)
leal __STRCMP_SSSE3, %eax
testl $bit_SSE4_2, CPUID_OFFSET+index_SSE4_2+__cpu_features
jz 2f
+ testl $bit_Slow_SSE4_2, CPUID_OFFSET+index_Slow_SSE4_2+__cpu_features
+ jnz 2f
leal __STRCMP_SSE4_2, %eax
2: ret
END(STRCMP)
diff --git a/sysdeps/i386/i686/multiarch/strncase.S b/sysdeps/i386/i686/multiarch/strncase.S
index 939cd96..de97e1b 100644
--- a/sysdeps/i386/i686/multiarch/strncase.S
+++ b/sysdeps/i386/i686/multiarch/strncase.S
@@ -37,6 +37,8 @@ ENTRY(__strncasecmp)
leal __strncasecmp_ssse3@GOTOFF(%ebx), %eax
testl $bit_SSE4_2, CPUID_OFFSET+index_SSE4_2+__cpu_features@GOTOFF(%ebx)
jz 2f
+ testl $bit_Slow_SSE4_2, CPUID_OFFSET+index_Slow_SSE4_2+__cpu_features@GOTOFF(%ebx)
+ jnz 2f
leal __strncasecmp_sse4_2@GOTOFF(%ebx), %eax
2: popl %ebx
cfi_adjust_cfa_offset (-4)
@@ -56,6 +58,8 @@ ENTRY(__strncasecmp)
leal __strncasecmp_ssse3, %eax
testl $bit_SSE4_2, CPUID_OFFSET+index_SSE4_2+__cpu_features
jz 2f
+ testl $bit_Slow_SSE4_2, CPUID_OFFSET+index_Slow_SSE4_2+__cpu_features
+ jnz 2f
leal __strncasecmp_sse4_2, %eax
2: ret
END(__strncasecmp)
-----------------------------------------------------------------------
Summary of changes:
ChangeLog | 7 +++++++
sysdeps/i386/i686/multiarch/strcasecmp.S | 4 ++++
sysdeps/i386/i686/multiarch/strcmp.S | 4 ++++
sysdeps/i386/i686/multiarch/strncase.S | 4 ++++
4 files changed, 19 insertions(+), 0 deletions(-)
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