1 files changed, 62 insertions, 0 deletions
diff --git a/sysdeps/powerpc/powerpc32/power4/fpu/w_sqrt.c b/sysdeps/powerpc/powerpc32/power4/fpu/w_sqrt.c
new file mode 100644
index 0000000000..f59c193934
--- /dev/null
+++ b/sysdeps/powerpc/powerpc32/power4/fpu/w_sqrt.c
@@ -0,0 +1,62 @@
+/* Double-precision floating point square root wrapper.
+   Copyright (C) 2004, 2007 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, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <math_ldbl_opt.h>
+#include "math.h"
+#include "math_private.h"
+#include <fenv_libc.h>
+
+#ifdef __STDC__
+double
+__sqrt (double x)		/* wrapper sqrt */
+#else
+double
+__sqrt (x)			/* wrapper sqrt */
+     double x;
+#endif
+{
+  double z;
+/* Power4 (ISA V2.0) and above implement sqrt in hardware.  */
+   __asm __volatile (
+	"	fsqrt	%0,%1\n"
+		: "=f" (z)
+		: "f" (x));
+#ifdef _IEEE_LIBM
+  return z;
+#else
+  if (__builtin_expect (_LIB_VERSION == _IEEE_, 0))
+    return z;
+    
+  if (__builtin_expect (x != x, 0))
+    return z;
+
+  if  (__builtin_expect (x < 0.0, 0))
+    return __kernel_standard (x, x, 26);	/* sqrt(negative) */
+  else
+    return z;
+#endif
+}
+
+weak_alias (__sqrt, sqrt)
+#ifdef NO_LONG_DOUBLE
+  strong_alias (__sqrt, __sqrtl) weak_alias (__sqrt, sqrtl)
+#endif
+#if LONG_DOUBLE_COMPAT(libm, GLIBC_2_0)
+compat_symbol (libm, __sqrt, sqrtl, GLIBC_2_0);
+#endif