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[thirdparty/glibc.git] / sysdeps / x86_64 / memset.S

diff --git a/sysdeps/x86_64/memset.S b/sysdeps/x86_64/memset.S
index 62b85c39b89dc6a9945faa3dc652ff1b79b874e9..10e9bc0074fbf68eb6e1c6c584002ec130170866 100644 (file)
--- a/sysdeps/x86_64/memset.S
+++ b/sysdeps/x86_64/memset.S
@@ -1,6 +1,6 @@
 /* memset/bzero -- set memory area to CH/0
    Optimized version for x86-64.
-   Copyright (C) 2002-2016 Free Software Foundation, Inc.
+   Copyright (C) 2002-2019 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -15,7 +15,7 @@
 
    You should have received a copy of the GNU Lesser General Public
    License along with the GNU C Library; if not, see
-   <http://www.gnu.org/licenses/>.  */
+   <https://www.gnu.org/licenses/>.  */
 
 #include <sysdep.h>
 
@@ -26,13 +26,18 @@
 #define VMOVU          movdqu
 #define VMOVA          movdqa
 
-#define VDUP_TO_VEC0_AND_SET_RETURN(d, r) \
+#define MEMSET_VDUP_TO_VEC0_AND_SET_RETURN(d, r) \
   movd d, %xmm0; \
   movq r, %rax; \
   punpcklbw %xmm0, %xmm0; \
   punpcklwd %xmm0, %xmm0; \
   pshufd $0, %xmm0, %xmm0
 
+#define WMEMSET_VDUP_TO_VEC0_AND_SET_RETURN(d, r) \
+  movd d, %xmm0; \
+  movq r, %rax; \
+  pshufd $0, %xmm0, %xmm0
+
 #define SECTION(p)             p
 
 #ifndef MEMSET_SYMBOL
@@ -40,12 +45,17 @@
 # define MEMSET_SYMBOL(p,s)    memset
 #endif
 
+#ifndef WMEMSET_SYMBOL
+# define WMEMSET_CHK_SYMBOL(p,s) p
+# define WMEMSET_SYMBOL(p,s)   __wmemset
+#endif
+
 #include "multiarch/memset-vec-unaligned-erms.S"
 
 libc_hidden_builtin_def (memset)
 
-#if defined SHARED && IS_IN (libc) && !defined USE_MULTIARCH
-strong_alias (__memset_chk, __memset_zero_constant_len_parameter)
-       .section .gnu.warning.__memset_zero_constant_len_parameter
-       .string "memset used with constant zero length parameter; this could be due to transposed parameters"
+#if IS_IN (libc)
+libc_hidden_def (__wmemset)
+weak_alias (__wmemset, wmemset)
+libc_hidden_weak (wmemset)
 #endif