1 files changed, 60 insertions, 0 deletions
diff --git a/sysdeps/powerpc/powerpc32/power4/fpu/w_sqrtf.c b/sysdeps/powerpc/powerpc32/power4/fpu/w_sqrtf.c
new file mode 100644
index 0000000000..4784869f07
--- /dev/null
+++ b/sysdeps/powerpc/powerpc32/power4/fpu/w_sqrtf.c
@@ -0,0 +1,60 @@
+/* Single-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.h"
+#include "math_private.h"
+#include <fenv_libc.h>
+
+#include <sysdep.h>
+#include <ldsodefs.h>
+
+#ifdef __STDC__
+float
+__sqrtf (float x)		/* wrapper sqrtf */
+#else
+float
+__sqrtf (x)			/* wrapper sqrtf */
+     float x;
+#endif
+{
+#ifdef _IEEE_LIBM
+  return __ieee754_sqrtf (x);
+#else
+  float z;
+/* Power4 (ISA V2.0) and above implement sqrtf in hardware.  */
+   __asm __volatile (
+	"	fsqrts	%0,%1\n"
+		: "=f" (z)
+		: "f" (x));
+
+  if (__builtin_expect (_LIB_VERSION == _IEEE_, 0))
+    return z;
+    
+  if (__builtin_expect (x != x, 0))
+    return z;
+    
+  if  (__builtin_expect (x < 0.0, 0))
+    /* sqrtf(negative) */
+    return (float) __kernel_standard ((double) x, (double) x, 126);
+  else
+    return z;
+#endif
+}
+
+weak_alias (__sqrtf, sqrtf)