PowerPC: Cleaning up uneeded sqrt routines

For PPC64, all the wrappers at sysdeps are superfluous: they are
basically the same implementation from math/w_sqrt.c with the
'#ifdef _IEEE_LIBM'. And the power4 version just force the 'fsqrt'
instruction utilization with an inline assembly, which is already
handled by math_private.h __ieee754_sqrt implementation.

5 files changed, 7 insertions, 202 deletions

diff --git a/ChangeLog b/ChangeLog
index cf36980f19..26ed103b1d 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,12 @@
 2013-12-13  Adhemerval Zanella  <azanella@linux.vnet.ibm.com>
 
+	* sysdeps/powerpc/fpu/w_sqrt.c: Remove file
+	* sysdeps/powerpc/fpu/w_sqrtf.c: Likewise.
+	* sysdeps/powerpc/powerpc64/power4/fpu/w_sqrt.c: Likewise.
+	* sysdeps/powerpc/powerpc64/power4/fpu/w_sqrtf.c: Likewise.
+
+2013-12-13  Adhemerval Zanella  <azanella@linux.vnet.ibm.com>
+
 	* sysdeps/powerpc/powerpc64/multiarch/Makefile: Add stpcpy
 	multiarch implementations.
 	* sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c
diff --git a/sysdeps/powerpc/fpu/w_sqrt.c b/sysdeps/powerpc/fpu/w_sqrt.c
deleted file mode 100644
index 70f28dd4df..0000000000
--- a/sysdeps/powerpc/fpu/w_sqrt.c
+++ /dev/null
@@ -1,48 +0,0 @@
-/* Double-precision floating point square root wrapper.
-   Copyright (C) 2004-2013 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
-   <http://www.gnu.org/licenses/>.  */
-
-#include <math.h>
-#include <math_private.h>
-#include <fenv_libc.h>
-#include <math_ldbl_opt.h>
-
-double
-__sqrt (double x)		/* wrapper sqrt */
-{
-#ifdef _IEEE_LIBM
-  return __ieee754_sqrt (x);
-#else
-  double z;
-  z = __ieee754_sqrt (x);
-  if (_LIB_VERSION == _IEEE_ || (x != x))
-    return z;
-
-  if (x < 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
diff --git a/sysdeps/powerpc/fpu/w_sqrtf.c b/sysdeps/powerpc/fpu/w_sqrtf.c
deleted file mode 100644
index aef8267f08..0000000000
--- a/sysdeps/powerpc/fpu/w_sqrtf.c
+++ /dev/null
@@ -1,46 +0,0 @@
-/* Single-precision floating point square root wrapper.
-   Copyright (C) 2004-2013 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
-   <http://www.gnu.org/licenses/>.  */
-
-#include <math.h>
-#include <math_private.h>
-#include <fenv_libc.h>
-
-#include <sysdep.h>
-#include <ldsodefs.h>
-
-float
-__sqrtf (float x)		/* wrapper sqrtf */
-{
-#ifdef _IEEE_LIBM
-  return __ieee754_sqrtf (x);
-#else
-  float z;
-  z = __ieee754_sqrtf (x);
-
-  if (_LIB_VERSION == _IEEE_ || (x != x))
-    return z;
-
-  if (x < (float) 0.0)
-    /* sqrtf(negative) */
-    return (float) __kernel_standard ((double) x, (double) x, 126);
-  else
-    return z;
-#endif
-}
-
-weak_alias (__sqrtf, sqrtf)
diff --git a/sysdeps/powerpc/powerpc64/power4/fpu/w_sqrt.c b/sysdeps/powerpc/powerpc64/power4/fpu/w_sqrt.c
deleted file mode 100644
index 78bba57a28..0000000000
--- a/sysdeps/powerpc/powerpc64/power4/fpu/w_sqrt.c
+++ /dev/null
@@ -1,55 +0,0 @@
-/* Double-precision floating point square root wrapper.
-   Copyright (C) 2004-2013 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
-   <http://www.gnu.org/licenses/>.  */
-
-#include <math_ldbl_opt.h>
-#include <math.h>
-#include <math_private.h>
-#include <fenv_libc.h>
-
-double
-__sqrt (double x)		/* wrapper sqrt */
-{
-  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
diff --git a/sysdeps/powerpc/powerpc64/power4/fpu/w_sqrtf.c b/sysdeps/powerpc/powerpc64/power4/fpu/w_sqrtf.c
deleted file mode 100644
index 12d9f6273d..0000000000
--- a/sysdeps/powerpc/powerpc64/power4/fpu/w_sqrtf.c
+++ /dev/null
@@ -1,53 +0,0 @@
-/* Single-precision floating point square root wrapper.
-   Copyright (C) 2004-2013 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
-   <http://www.gnu.org/licenses/>.  */
-
-#include <math.h>
-#include <math_private.h>
-#include <fenv_libc.h>
-
-#include <sysdep.h>
-#include <ldsodefs.h>
-
-float
-__sqrtf (float x)		/* wrapper sqrtf */
-{
-#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)