Simplify C99 isgreater macros

Simplify the C99 isgreater macros.  Although some support was added
in GCC 2.97, not all targets added support until GCC 3.1.  Therefore
only use the builtins in math.h from GCC 3.1 onwards, and defer to
generic macros otherwise.  Improve the generic isunordered macro
to use compares rather than call fpclassify twice - this is not only
faster but also correct for signaling NaNs.

	* math/math.h: Improve handling of C99 isgreater macros.
	* sysdeps/alpha/fpu/bits/mathinline.h: Remove isgreater macros.
	* sysdeps/m68k/m680x0/fpu/bits/mathinline.h: Likewise.
	* sysdeps/powerpc/bits/mathinline.h: Likewise.
	* sysdeps/sparc/fpu/bits/mathinline.h: Likewise.
	* sysdeps/x86/fpu/bits/mathinline.h: Likewise.

1 files changed, 0 insertions, 99 deletions

diff --git a/sysdeps/sparc/fpu/bits/mathinline.h b/sysdeps/sparc/fpu/bits/mathinline.h
index 60a2028f2c..6d6813687d 100644
--- a/sysdeps/sparc/fpu/bits/mathinline.h
+++ b/sysdeps/sparc/fpu/bits/mathinline.h
@@ -25,105 +25,6 @@
 
 #ifdef __GNUC__
 
-#if defined __USE_ISOC99 && !__GNUC_PREREQ (3, 0)
-# undef isgreater
-# undef isgreaterequal
-# undef isless
-# undef islessequal
-# undef islessgreater
-# undef isunordered
-
-# if __WORDSIZE == 32
-
-#  ifndef __NO_LONG_DOUBLE_MATH
-
-#   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 if (sizeof (x) <= 8 && sizeof (y) <= 8)			      \
-	{								      \
-	  double __x = (x); double __y = (y);				      \
-	  __asm__ ("fcmpd\t%1,%2\n\tst\t%%fsr,%0" : "=m" (__r) : "f" (__x),   \
-		   "f" (__y) : "cc");					      \
-	}								      \
-      else								      \
-	{								      \
-	  long double __x = (x); long double __y = (y);			      \
-	  extern int _Q_cmp (const long double a, const long double b);	      \
-	  __r = _Q_cmp (__x, __y) << 10;				      \
-	}								      \
-      __r; }))
-
-#  else
-
-#   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; }))
-
-#  endif
-
-#  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__
 
 # ifndef __extern_inline