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-rw-r--r--sysdeps/x86_64/fpu/multiarch/s_atan.c30
1 files changed, 21 insertions, 9 deletions
diff --git a/sysdeps/x86_64/fpu/multiarch/s_atan.c b/sysdeps/x86_64/fpu/multiarch/s_atan.c
index 742e95cb96..f81919cbbe 100644
--- a/sysdeps/x86_64/fpu/multiarch/s_atan.c
+++ b/sysdeps/x86_64/fpu/multiarch/s_atan.c
@@ -1,15 +1,27 @@
-#include <init-arch.h>
-#include <math.h>
+/* Multiple versions of atan.
+   Copyright (C) 2017 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
 
-extern double __atan_sse2 (double);
-extern double __atan_avx (double);
-extern double __atan_fma4 (double);
+   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.
 
-libm_ifunc (atan, (HAS_ARCH_FEATURE (FMA4_Usable) ? __atan_fma4 :
-		   HAS_ARCH_FEATURE (AVX_Usable)
-		   ? __atan_avx : __atan_sse2));
+   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.
 
-#define atan __atan_sse2
+   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/>.  */
+
+extern double __redirect_atan (double);
 
+#define SYMBOL_NAME atan
+#include "ifunc-avx-fma4.h"
 
+libc_ifunc_redirected (__redirect_atan, atan, IFUNC_SELECTOR ());
+
+#define atan __atan_sse2
 #include <sysdeps/ieee754/dbl-64/s_atan.c>