Sync up sparc headers

1 files changed, 222 insertions, 6 deletions

diff --git a/libc/sysdeps/linux/sparc/bits/mathinline.h b/libc/sysdeps/linux/sparc/bits/mathinline.h
index 5498af6b6..4ee861e80 100644
--- a/libc/sysdeps/linux/sparc/bits/mathinline.h
+++ b/libc/sysdeps/linux/sparc/bits/mathinline.h
@@ -1,12 +1,228 @@
-/* This file should provide inline versions of math functions.
+/* Inline math functions for SPARC.
+   Copyright (C) 1999, 2000 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Jakub Jelinek <jakub@redhat.com>.
 
-   Surround GCC-specific parts with #ifdef __GNUC__, and use `extern __inline'.
+   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.
 
-   This file should define __MATH_INLINES if functions are actually defined as
-   inlines.  */
+   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.
 
-#if !defined __NO_MATH_INLINES && defined __OPTIMIZE__
+   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.  */
 
-/* Here goes the real code.  */
+#ifndef _MATH_H
+# error "Never use <bits/mathinline.h> directly; include <math.h> instead."
+#endif
+
+#include <bits/wordsize.h>
+
+#if defined __GNUC__
+
+#ifdef __USE_ISOC99
+
+#if __WORDSIZE == 32
+
+# define __unordered_cmp(x, y) \
+  (__extension__							      \
+   ({ unsigned __r;							      \
+      if (sizeof(x) == 4 && sizeof(y) == 4)				      \
+	{								      \
+	  float __x = (x); float __y = (y);				      \
+	  __asm__("fcmps %1,%2; st %%fsr, %0" : "=m" (__r) : "f" (__x),	      \
+		  "f" (__y) : "cc");					      \
+	}								      \
+      else								      \
+	{								      \
+	  double __x = (x); double __y = (y);				      \
+	  __asm__("fcmpd\t%1,%2\n\tst\t%%fsr,%0" : "=m" (__r) : "f" (__x),    \
+		  "f" (__y) : "cc");					      \
+	}								      \
+      __r; }))
+
+# define isgreater(x, y) ((__unordered_cmp (x, y) & (3 << 10)) == (2 << 10))
+# define isgreaterequal(x, y) ((__unordered_cmp (x, y) & (1 << 10)) == 0)
+# define isless(x, y) ((__unordered_cmp (x, y) & (3 << 10)) == (1 << 10))
+# define islessequal(x, y) ((__unordered_cmp (x, y) & (2 << 10)) == 0)
+# define islessgreater(x, y) (((__unordered_cmp (x, y) + (1 << 10)) & (2 << 10)) != 0)
+# define isunordered(x, y) ((__unordered_cmp (x, y) & (3 << 10)) == (3 << 10))
+
+#else /* sparc64 */
+
+# define __unordered_v9cmp(x, y, op, qop) \
+  (__extension__							      \
+   ({ unsigned __r;						      	      \
+      if (sizeof(x) == 4 && sizeof(y) == 4)				      \
+	{								      \
+	  float __x = (x); float __y = (y);				      \
+	  __asm__("fcmps\t%%fcc3,%1,%2\n\tmov" op "\t%%fcc3,1,%0"	      \
+		  : "=r" (__r) : "f" (__x), "f" (__y), "0" (0) : "cc");	      \
+	}								      \
+      else if (sizeof(x) <= 8 && sizeof(y) <= 8)			      \
+	{								      \
+	  double __x = (x); double __y = (y);				      \
+	  __asm__("fcmpd\t%%fcc3,%1,%2\n\tmov" op "\t%%fcc3,1,%0"	      \
+		  : "=r" (__r) : "f" (__x), "f" (__y), "0" (0) : "cc");	      \
+	}								      \
+      else								      \
+	{								      \
+	  long double __x = (x); long double __y = (y);			      \
+	  extern int _Qp_cmp(const long double *a, const long double *b);     \
+	  __r = qop;						      	      \
+	}								      \
+      __r; }))
+
+# define isgreater(x, y) __unordered_v9cmp(x, y, "g", _Qp_cmp (&__x, &__y) == 2)
+# define isgreaterequal(x, y) __unordered_v9cmp(x, y, "ge", (_Qp_cmp (&__x, &__y) & 1) == 0)
+# define isless(x, y) __unordered_v9cmp(x, y, "l", _Qp_cmp (&__x, &__y) == 1)
+# define islessequal(x, y) __unordered_v9cmp(x, y, "le", (_Qp_cmp (&__x, &__y) & 2) == 0)
+# define islessgreater(x, y) __unordered_v9cmp(x, y, "lg", ((_Qp_cmp (&__x, &__y) + 1) & 2) != 0)
+# define isunordered(x, y) __unordered_v9cmp(x, y, "u", _Qp_cmp (&__x, &__y) == 3)
+
+#endif /* sparc64 */
+
+#endif /* __USE_ISOC99 */
+
+#if (!defined __NO_MATH_INLINES || defined __LIBC_INTERNAL_MATH_INLINES) && defined __OPTIMIZE__
+
+#ifdef __cplusplus
+# define __MATH_INLINE __inline
+#else
+# define __MATH_INLINE extern __inline
+#endif  /* __cplusplus */
+
+/* The gcc, version 2.7 or below, has problems with all this inlining
+   code.  So disable it for this version of the compiler.  */
+# if __GNUC_PREREQ (2, 8)
+   /* Test for negative number.  Used in the signbit() macro.  */
+__MATH_INLINE int
+__signbitf (float __x) __THROW
+{
+  __extension__ union { float __f; int __i; } __u = { __f: __x };
+  return __u.__i < 0;
+}
+
+#if __WORDSIZE == 32
+
+__MATH_INLINE int
+__signbit (double __x) __THROW
+{
+  __extension__ union { double __d; int __i[2]; } __u = { __d: __x };
+  return __u.__i[0] < 0;
+}
+
+__MATH_INLINE int
+__signbitl (long double __x) __THROW
+{
+  return __signbit ((double)__x);
+}
+
+#else /* sparc64 */
+
+__MATH_INLINE int
+__signbit (double __x) __THROW
+{
+  __extension__ union { double __d; long __i; } __u = { __d: __x };
+  return __u.__i < 0;
+}
+
+__MATH_INLINE int
+__signbitl (long double __x) __THROW
+{
+  __extension__ union { long double __l; long __i[2]; } __u = { __l: __x };
+  return __u.__i[0] < 0;
+}
+
+#endif /* sparc64 */
+
+#ifndef __NO_MATH_INLINES
+
+__MATH_INLINE double
+sqrt(double __x) __THROW
+{
+  register double __r;
+  __asm ("fsqrtd %1,%0" : "=f" (__r) : "f" (__x));
+  return __r;
+}
+
+__MATH_INLINE float
+sqrtf(float __x) __THROW
+{
+  register float __r;
+  __asm ("fsqrts %1,%0" : "=f" (__r) : "f" (__x));
+  return __r;
+}
+
+#if __WORDSIZE == 64
+__MATH_INLINE long double
+sqrtl(long double __x) __THROW
+{
+  long double __r;
+  extern void _Qp_sqrt(long double *, __const__ long double *);
+  _Qp_sqrt(&__r, &__x);
+  return __r;
+}
+#endif /* sparc64 */
 
 #endif
+
+/* This code is used internally in the GNU libc.  */
+#ifdef __LIBC_INTERNAL_MATH_INLINES
+__MATH_INLINE double
+__ieee754_sqrt(double __x)
+{
+  register double __r;
+  __asm ("fsqrtd %1,%0" : "=f" (__r) : "f" (__x));
+  return __r;
+}
+
+__MATH_INLINE float
+__ieee754_sqrtf(float __x)
+{
+  register float __r;
+  __asm ("fsqrts %1,%0" : "=f" (__r) : "f" (__x));
+  return __r;
+}
+
+#if __WORDSIZE == 64
+__MATH_INLINE long double
+__ieee754_sqrtl(long double __x)
+{
+  long double __r;
+  extern void _Qp_sqrt(long double *, __const__ long double *);
+  _Qp_sqrt(&__r, &__x);
+  return __r;
+}
+#endif /* sparc64 */
+#endif /* __LIBC_INTERNAL_MATH_INLINES */
+#endif /* gcc 2.8+ */
+
+#ifdef __USE_ISOC99
+
+#ifndef __NO_MATH_INLINES
+
+__MATH_INLINE double fdim (double __x, double __y);
+__MATH_INLINE double
+fdim (double __x, double __y)
+{
+  return __x < __y ? 0 : __x - __y;
+}
+
+__MATH_INLINE float fdimf (float __x, float __y);
+__MATH_INLINE float
+fdimf (float __x, float __y)
+{
+  return __x < __y ? 0 : __x - __y;
+}
+
+#endif /* !__NO_MATH_INLINES */
+#endif /* __USE_ISOC99 */
+#endif /* !__NO_MATH_INLINES && __OPTIMIZE__ */
+#endif /* __GNUC__ */