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authorUlrich Drepper <drepper@redhat.com>1999-11-11 01:05:26 +0000
committerUlrich Drepper <drepper@redhat.com>1999-11-11 01:05:26 +0000
commit7ad6d73d6fb83394f97f93ce9472303117bdf020 (patch)
tree9cfc41b6f8fa75303b62d3ec59a298e7092ab85f /sysdeps/powerpc/fpu/bits/fenvinline.h
parent1fc6f81397fefb17827fcaf9ab0acd5c6d327dc9 (diff)
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Update.
	* math/fenv.h: Include bits/fenvinline.h if optimizing.
	* sysdeps/powerpc/fpu/bits/fenv.h: Remove inline functions.  Moved to..
	* sysdeps/powerpc/fpu/bits/fenvinline.h: ...here.  New file.
	* sysdeps/generic/bits/fenv.h: New file.

1999-11-10  Ulrich Drepper  <drepper@cygnus.com>
Diffstat (limited to 'sysdeps/powerpc/fpu/bits/fenvinline.h')
-rw-r--r--sysdeps/powerpc/fpu/bits/fenvinline.h59
1 files changed, 59 insertions, 0 deletions
diff --git a/sysdeps/powerpc/fpu/bits/fenvinline.h b/sysdeps/powerpc/fpu/bits/fenvinline.h
new file mode 100644
index 0000000000..6ab3105a3b
--- /dev/null
+++ b/sysdeps/powerpc/fpu/bits/fenvinline.h
@@ -0,0 +1,59 @@
+/* Inline floating-point environment handling functions for powerpc.
+   Copyright (C) 1995, 1996, 1997, 1998, 1999 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.  */
+
+#if defined __GNUC__ && !defined _SOFT_FLOAT && !defined __NO_MATH_INLINES
+
+/* Inline definition for fegetround.  */
+# define fegetround() \
+  (__extension__  ({ int __fegetround_result;				      \
+		     __asm__ ("mcrfs 7,7 ; mfcr %0"			      \
+			     : "=r"(__fegetround_result) : : "cr7");	      \
+		     __fegetround_result & 3; }))
+
+/* The weird 'i#*X' constraints on the following suppress a gcc
+   warning when __excepts is not a constant.  Otherwise, they mean the
+   same as just plain 'i'.  */
+
+/* Inline definition for feraiseexcept.  */
+# define feraiseexcept(__excepts) \
+  ((__builtin_constant_p (__excepts)					      \
+    && ((__excepts) & ((__excepts)-1)) == 0				      \
+    && (__excepts) != FE_INVALID)					      \
+   ? ((__excepts) != 0							      \
+      ? (__extension__ ({ __asm__ __volatile__				      \
+			  ("mtfsb1 %s0"					      \
+			   : : "i#*X"(__builtin_ffs (__excepts)));	      \
+			  (void)0; }))					      \
+      : (void)0)							      \
+   : (feraiseexcept) (__excepts))
+
+/* Inline definition for feclearexcept.  */
+# define feclearexcept(__excepts) \
+  ((__builtin_constant_p (__excepts)					      \
+    && ((__excepts) & ((__excepts)-1)) == 0				      \
+    && (__excepts) != FE_INVALID)					      \
+   ? ((__excepts) != 0							      \
+      ? (__extension__ ({ __asm__ __volatile__				      \
+			  ("mtfsb0 %s0"					      \
+			   : : "i#*X"(__builtin_ffs (__excepts)));	      \
+			  (void)0; }))					      \
+      : (void)0)							      \
+   : (feclearexcept) (__excepts))
+
+#endif /* __GNUC__ && !_SOFT_FLOAT */