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-rw-r--r--sysdeps/x86_64/strncase_l.S32
1 files changed, 28 insertions, 4 deletions
diff --git a/sysdeps/x86_64/strncase_l.S b/sysdeps/x86_64/strncase_l.S
index 3780fc50b1..de28ecf5d4 100644
--- a/sysdeps/x86_64/strncase_l.S
+++ b/sysdeps/x86_64/strncase_l.S
@@ -1,11 +1,35 @@
+/* strcasecmp_l dispatch for RTLD and non-multiarch build
+   Copyright (C) 2022 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
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <https://www.gnu.org/licenses/>.  */
+
 /* Symbols = __strncasecmp_l and __strncasecmp.  */
 
-#include "multiarch/strncase_l-sse2.S"
+#define DEFAULT_IMPL_V1	"multiarch/strncase_l-sse2.S"
+/* This may cause regressions on some processors that heavily prefer
+   aligned loads or have slow a implementation of the `pcmpstri`
+   instruction.  */
+#define DEFAULT_IMPL_V2	"multiarch/strncase_l-sse4_2.S"
+#define DEFAULT_IMPL_V3	"multiarch/strncase_l-avx2.S"
+#define DEFAULT_IMPL_V4	"multiarch/strncase_l-evex.S"
 
-libc_hidden_builtin_def (__strncasecmp_l)
+#include "isa-default-impl.h"
 
+libc_hidden_def (__strncasecmp_l)
 weak_alias (__strncasecmp_l, strncasecmp_l)
-libc_hidden_def (strncasecmp_l)
 
-weak_alias (__strncasecmp, strncasecmp)
 libc_hidden_def (__strncasecmp)
+weak_alias (__strncasecmp, strncasecmp)