- note from H. J. Lu.

[packages/glibc.git] / glibc-ppc-inline-fsqrt.patch

2006-11-03  Steven Munroe  <sjmunroe@us.ibm.com>

	* sysdeps/powerpc/fpu/bits/mathinline.h
	[__LIBC_INTERNAL_MATH_INLINES]: Moved to math_private.h.
	* sysdeps/powerpc/fpu/math_private.h: New file.

diff -urN libc25-cvstip-20061018/sysdeps/powerpc/fpu/bits/mathinline.h libc24/sysdeps/powerpc/fpu/bits/mathinline.h
--- libc25-cvstip-20061018/sysdeps/powerpc/fpu/bits/mathinline.h	2006-04-14 00:43:58.000000000 -0500
+++ libc24/sysdeps/powerpc/fpu/bits/mathinline.h	2006-11-03 17:45:55.517445184 -0600
@@ -124,59 +124,6 @@
 
 /* This code is used internally in the GNU libc.  */
 #ifdef __LIBC_INTERNAL_MATH_INLINES
-
-#include <sysdep.h>
-#include <ldsodefs.h>
-#include <dl-procinfo.h>
-
-# if __WORDSIZE == 64 || defined _ARCH_PWR4
-#  define __CPU_HAS_FSQRT 1
-# else
-#  define __CPU_HAS_FSQRT ((GLRO(dl_hwcap) & PPC_FEATURE_64) != 0)
-# endif
-
-extern double __slow_ieee754_sqrt (double);
-__MATH_INLINE double
-__NTH (__ieee754_sqrt (double __x))
-{
-  double __z;
-
-  /* If the CPU is 64-bit we can use the optional FP instructions.  */
-  if (__CPU_HAS_FSQRT)
-  {
-    /* Volatile is required to prevent the compiler from moving the
-       fsqrt instruction above the branch.  */
-     __asm __volatile (
-	"	fsqrt	%0,%1\n"
-		: "=f" (__z)
-		: "f" (__x));
-  }
-  else
-     __z = __slow_ieee754_sqrt(__x);
-
-  return __z;
-}
-
-extern float __slow_ieee754_sqrtf (float);
-__MATH_INLINE float
-__NTH (__ieee754_sqrtf (float __x))
-{
-  float __z;
-
-  /* If the CPU is 64-bit we can use the optional FP instructions.  */
-  if (__CPU_HAS_FSQRT)
-  {
-    /* Volatile is required to prevent the compiler from moving the
-       fsqrts instruction above the branch.  */
-     __asm __volatile (
-	"	fsqrts	%0,%1\n"
-		: "=f" (__z)
-		: "f" (__x));
-  }
-  else
-     __z = __slow_ieee754_sqrtf(__x);
-
-  return __z;
-}
+/* Moved to math_private.h  */
 #endif /* __LIBC_INTERNAL_MATH_INLINES */
 #endif /* __GNUC__ && !_SOFT_FLOAT */
diff -urN libc25-cvstip-20061018/sysdeps/powerpc/fpu/math_private.h libc24/sysdeps/powerpc/fpu/math_private.h
--- libc25-cvstip-20061018/sysdeps/powerpc/fpu/math_private.h	Wed Dec 31 18:00:00 1969
+++ libc24/sysdeps/powerpc/fpu/math_private.h	Fri Nov 03 17:54:05 2006
@@ -0,0 +1,83 @@
+/* Private inline math functions for powerpc.
+   Copyright (C) 2006
+   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., 51 Franklin St - Fifth Floor, Boston, 
+   MA 02110-1301 USA  */
+
+#ifndef _PPC_MATH_PRIVATE_H_
+#define _PPC_MATH_PRIVATE_H_
+
+#include <sysdep.h>
+#include <ldsodefs.h>
+#include <dl-procinfo.h>
+
+# if __WORDSIZE == 64 || defined _ARCH_PWR4
+#  define __CPU_HAS_FSQRT 1
+# else
+#  define __CPU_HAS_FSQRT ((GLRO(dl_hwcap) & PPC_FEATURE_64) != 0)
+# endif
+
+# ifndef __LIBC_INTERNAL_MATH_INLINES
+extern double __slow_ieee754_sqrt (double);
+__inline double
+__ieee754_sqrt (double __x)
+{
+  double __z;
+
+  /* If the CPU is 64-bit we can use the optional FP instructions.  */
+  if (__CPU_HAS_FSQRT)
+  {
+    /* Volatile is required to prevent the compiler from moving the
+       fsqrt instruction above the branch.  */
+     __asm __volatile (
+	"	fsqrt	%0,%1\n"
+		: "=f" (__z)
+		: "f" (__x));
+  }
+  else
+     __z = __slow_ieee754_sqrt(__x);
+
+  return __z;
+}
+
+extern float __slow_ieee754_sqrtf (float);
+
+__inline float
+__ieee754_sqrtf (float __x)
+{
+  float __z;
+
+  /* If the CPU is 64-bit we can use the optional FP instructions.  */
+  if (__CPU_HAS_FSQRT)
+  {
+    /* Volatile is required to prevent the compiler from moving the
+       fsqrts instruction above the branch.  */
+     __asm __volatile (
+	"	fsqrts	%0,%1\n"
+		: "=f" (__z)
+		: "f" (__x));
+  }
+  else
+     __z = __slow_ieee754_sqrtf(__x);
+
+  return __z;
+}
+#endif /* __LIBC_INTERNAL_MATH_INLINES */
+
+# include_next <math_private.h>
+
+#endif /* _PPC_MATH_PRIVATE_H_ */