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GNU C Library master sources branch master updated. glibc-2.23-79-g2b35e48
- From: hjl at sourceware dot org
- To: glibc-cvs at sourceware dot org
- Date: 8 Mar 2016 18:59:47 -0000
- Subject: GNU C Library master sources branch master updated. glibc-2.23-79-g2b35e48
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http://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=2b35e48c0c547b3f6f81996ce7ad7d67e24c7329
commit 2b35e48c0c547b3f6f81996ce7ad7d67e24c7329
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Tue Mar 8 10:57:31 2016 -0800
Define _HAVE_STRING_ARCH_mempcpy to 1 for x86
Since x86 has an optimized mempcpy and GCC can inline mempcpy on x86,
define _HAVE_STRING_ARCH_mempcpy to 1 for x86.
[BZ #19759]
* sysdeps/x86/bits/string.h (_HAVE_STRING_ARCH_mempcpy): New.
diff --git a/ChangeLog b/ChangeLog
index 585c9c2..4a7e019 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2016-03-08 H.J. Lu <hongjiu.lu@intel.com>
+
+ [BZ #19759]
+ * sysdeps/x86/bits/string.h (_HAVE_STRING_ARCH_mempcpy): New.
+
2016-03-08 Gabriel F. T. Gomes <gftg@linux.vnet.ibm.com>
* sysdeps/powerpc/bits/fenvinline.h (feraiseexcept): Remove use of %s
diff --git a/sysdeps/x86/bits/string.h b/sysdeps/x86/bits/string.h
index e4e019f..8dfce05 100644
--- a/sysdeps/x86/bits/string.h
+++ b/sysdeps/x86/bits/string.h
@@ -23,6 +23,9 @@
/* Use the unaligned string inline ABI. */
#define _STRING_INLINE_unaligned 1
+/* Don't inline mempcpy into memcpy as x86 has an optimized mempcpy. */
+#define _HAVE_STRING_ARCH_mempcpy 1
+
/* Enable inline functions only for i486 or better when compiling for
ia32. */
#if !defined __x86_64__ && (defined __i486__ || defined __pentium__ \
-----------------------------------------------------------------------
Summary of changes:
ChangeLog | 5 +++++
sysdeps/x86/bits/string.h | 3 +++
2 files changed, 8 insertions(+), 0 deletions(-)
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