Update.

	* sysdeps/powerpc/bits/fenv.h: Moved to...
	* sysdeps/powerpc/fpu/bits/fenv.h: ...here.

1 files changed, 178 insertions, 0 deletions

diff --git a/sysdeps/powerpc/fpu/bits/fenv.h b/sysdeps/powerpc/fpu/bits/fenv.h
new file mode 100644
index 0000000000..f86d02d014
--- /dev/null
+++ b/sysdeps/powerpc/fpu/bits/fenv.h
@@ -0,0 +1,178 @@
+/* Copyright (C) 1997, 1998 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 Library General Public License as
+   published by the Free Software Foundation; either version 2 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#ifndef _FENV_H
+# error "Never use <bits/fenv.h> directly; include <fenv.h> instead."
+#endif
+
+
+/* Define bits representing the exception.  We use the bit positions of
+   the appropriate bits in the FPSCR...  */
+enum
+  {
+    FE_INEXACT = 1 << (31 - 6),
+#define FE_INEXACT	FE_INEXACT
+    FE_DIVBYZERO = 1 << (31 - 5),
+#define FE_DIVBYZERO	FE_DIVBYZERO
+    FE_UNDERFLOW = 1 << (31 - 4),
+#define FE_UNDERFLOW	FE_UNDERFLOW
+    FE_OVERFLOW = 1 << (31 - 3),
+#define FE_OVERFLOW	FE_OVERFLOW
+
+    /* ... except for FE_INVALID, for which we use bit 31. FE_INVALID
+       actually corresponds to bits 7 through 12 and 21 through 23
+       in the FPSCR, but we can't use that because the current draft
+       says that it must be a power of 2.  Instead we use bit 2 which
+       is the summary bit for all the FE_INVALID exceptions, which
+       kind of makes sense.  */
+    FE_INVALID = 1 << (31 - 2),
+#define FE_INVALID	FE_INVALID
+
+#ifdef __USE_GNU
+    /* Breakdown of the FE_INVALID bits. Setting FE_INVALID on an
+       input to a routine is equivalent to setting all of these bits;
+       FE_INVALID will be set on output from a routine iff one of
+       these bits is set.  Note, though, that you can't disable or
+       enable these exceptions individually.  */
+
+    /* Operation with SNaN. */
+    FE_INVALID_SNAN = 1 << (31 - 7),
+# define FE_INVALID_SNAN	FE_INVALID_SNAN
+
+    /* Inf - Inf */
+    FE_INVALID_ISI = 1 << (31 - 8),
+# define FE_INVALID_ISI		FE_INVALID_ISI
+
+    /* Inf / Inf */
+    FE_INVALID_IDI = 1 << (31 - 9),
+# define FE_INVALID_IDI		FE_INVALID_IDI
+
+    /* 0 / 0 */
+    FE_INVALID_ZDZ = 1 << (31 - 10),
+# define FE_INVALID_ZDZ		FE_INVALID_ZDZ
+
+    /* Inf * 0 */
+    FE_INVALID_IMZ = 1 << (31 - 11),
+# define FE_INVALID_IMZ		FE_INVALID_IMZ
+
+    /* Comparison with NaN or SNaN.  */
+    FE_INVALID_COMPARE = 1 << (31 - 12),
+# define FE_INVALID_COMPARE	FE_INVALID_COMPARE
+
+    /* Invalid operation flag for software (not set by hardware).  */
+    /* Note that some chips don't have this implemented, presumably
+       because no-one expected anyone to write software for them %-).  */
+    FE_INVALID_SOFTWARE = 1 << (31 - 21),
+# define FE_INVALID_SOFTWARE	FE_INVALID_SOFTWARE
+
+    /* Square root of negative number (including -Inf).  */
+    /* Note that some chips don't have this implemented.  */
+    FE_INVALID_SQRT = 1 << (31 - 22),
+# define FE_INVALID_SQRT	FE_INVALID_SQRT
+
+    /* Conversion-to-integer of a NaN or a number too large or too small.  */
+    FE_INVALID_INTEGER_CONVERSION = 1 << (31 - 23),
+# define FE_INVALID_INTEGER_CONVERSION	FE_INVALID_INTEGER_CONVERSION
+
+# define FE_ALL_INVALID \
+        (FE_INVALID_SNAN | FE_INVALID_ISI | FE_INVALID_IDI | FE_INVALID_ZDZ \
+	 | FE_INVALID_IMZ | FE_INVALID_COMPARE | FE_INVALID_SOFTWARE \
+	 | FE_INVALID_SQRT | FE_INVALID_INTEGER_CONVERSION)
+#endif
+  };
+
+#define FE_ALL_EXCEPT \
+	(FE_INEXACT | FE_DIVBYZERO | FE_UNDERFLOW | FE_OVERFLOW | FE_INVALID)
+
+/* PowerPC chips support all of the four defined rounding modes.  We
+   use the bit pattern in the FPSCR as the values for the
+   appropriate macros.  */
+enum
+  {
+    FE_TONEAREST = 0,
+#define FE_TONEAREST	FE_TONEAREST
+    FE_TOWARDZERO = 1,
+#define FE_TOWARDZERO	FE_TOWARDZERO
+    FE_UPWARD = 2,
+#define FE_UPWARD	FE_UPWARD
+    FE_DOWNWARD = 3,
+#define FE_DOWNWARD	FE_DOWNWARD
+  };
+
+/* Type representing exception flags.  */
+typedef unsigned int fexcept_t;
+
+/* Type representing floating-point environment.  We leave it as 'double'
+   for efficiency reasons (rather than writing it to a 32-bit integer). */
+typedef double fenv_t;
+
+/* If the default argument is used we use this value.  */
+extern const fenv_t __fe_dfl_env;
+#define FE_DFL_ENV	(&__fe_dfl_env)
+
+#ifdef __USE_GNU
+/* Floating-point environment where all exceptions are enabled.  Note that
+   this is not sufficient to give you SIGFPE.  */
+extern const fenv_t __fe_enabled_env;
+# define FE_ENABLED_ENV	(&__fe_enabled_env)
+
+/* Floating-point environment with (processor-dependent) non-IEEE floating
+   point.  */
+extern const fenv_t __fe_nonieee_env;
+# define FE_NONIEEE_ENV	(&__fe_nonieee_env)
+
+/* Floating-point environment with all exceptions enabled.  Note that
+   just evaluating this value will set the processor into 'FPU
+   exceptions imprecise recoverable' mode, which may cause a significant
+   performance penalty (but have no other visible effect).  */
+extern const fenv_t *__fe_nomask_env __P ((void));
+# define FE_NOMASK_ENV	(__fe_nomask_env ())
+#endif
+
+#if defined __OPTIMIZE__ && !defined _SOFT_FLOAT
+/* Inline definition for fegetround.  */
+# define fegetround() \
+  (__extension__  ({ int __fegetround_result;				      \
+		     __asm__ ("mcrfs 7,7 ; mfcr %0"			      \
+			     : "=r"(__fegetround_result) : : "cr7");	      \
+		     __fegetround_result & 3; }))
+
+/* Inline definition for feraiseexcept.  */
+# define feraiseexcept(__excepts) \
+  (__extension__ ({ if (__builtin_constant_p (__excepts)		      \
+			&& ((__excepts) & -(__excepts)) == 0		      \
+			&& (__excepts) != FE_INVALID) {			      \
+		      if ((__excepts) != 0)				      \
+			__asm__ __volatile__				      \
+			  ("mtfsb1 %0"					      \
+			   : : "i"(32 - __builtin_ffs (__excepts)));	      \
+		    } else						      \
+		      (feraiseexcept) (__excepts); }))
+
+/* Inline definition for feclearexcept.  */
+# define feclearexcept(__excepts) \
+  (__extension__  ({ if (__builtin_constant_p (__excepts)		      \
+			 && ((__excepts) & -(__excepts)) == 0		      \
+			 && (__excepts) != FE_INVALID) {		      \
+		       if ((__excepts) != 0)				      \
+			 __asm__ __volatile__				      \
+			   ("mtfsb0 %0"					      \
+			    : : "i"(32 - __builtin_ffs (__excepts)));	      \
+		     } else						      \
+		       (feclearexcept) (__excepts); }))
+#endif /* __OPTIMIZE__ && !_SOFT_FLOAT */