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authorUlrich Drepper <drepper@redhat.com>2008-04-10 05:59:13 +0000
committerUlrich Drepper <drepper@redhat.com>2008-04-10 05:59:13 +0000
commit3b32d8a25908459411ee77761ccf57ac3f8b4343 (patch)
treef9f0fff8ed8892f4baa2d663a011cc4edbb544f5 /sysdeps/powerpc/powerpc64/power5
parent9fb11d4c6e3352db2ab019133d5de35da057d2f9 (diff)
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* sysdeps/powerpc/powerpc32/power5/fpu/s_isnan.S: New file.
	* sysdeps/powerpc/powerpc32/power5/fpu/s_isnanf.S: New file.
	* sysdeps/powerpc/powerpc32/power6/fpu/s_isnan.S: New file.
	* sysdeps/powerpc/powerpc32/power6/fpu/s_isnanf.S: New file.
	* sysdeps/powerpc/powerpc64/power5/fpu/s_isnan.S: New file.
	* sysdeps/powerpc/powerpc64/power6/fpu/s_isnan.S: New file.
	* sysdeps/powerpc/powerpc64/power6x/fpu/s_isnan.S: New file.
Diffstat (limited to 'sysdeps/powerpc/powerpc64/power5')
-rw-r--r--sysdeps/powerpc/powerpc64/power5/fpu/s_isnan.S61
1 files changed, 61 insertions, 0 deletions
diff --git a/sysdeps/powerpc/powerpc64/power5/fpu/s_isnan.S b/sysdeps/powerpc/powerpc64/power5/fpu/s_isnan.S
new file mode 100644
index 0000000000..d46d049d45
--- /dev/null
+++ b/sysdeps/powerpc/powerpc64/power5/fpu/s_isnan.S
@@ -0,0 +1,61 @@
+/* isnan().  PowerPC64 version.
+   Copyright (C) 2008 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., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <sysdep.h>
+#include <math_ldbl_opt.h>
+
+/* int __isnan(x)  */
+	.machine power5
+EALIGN (__isnan, 4, 0)	
+	CALL_MCOUNT 0
+	stfd	fp1,-8(r1)	/* copy FPR to GPR */
+	lis	r0,0x7ff0
+	nop			/* insure the following is in a different */
+	nop			/* dispatch group */
+	ld	r4,-8(r1)	
+	sldi	r0,r0,32	/* const long r0 0x7ff00000 00000000 */
+	clrldi	r4,r4,1		/* x = fabs(x) */
+	cmpd	cr7,r4,r0	/* if (fabs(x) <= inf) */
+	li	r3,0		/* then return 0 */
+	blelr+	cr7
+	li	r3,1		/* else return 1 */
+	blr
+	END (__isnan)
+
+hidden_def (__isnan)
+weak_alias (__isnan, isnan)
+
+/* It turns out that the 'double' version will also always work for
+   single-precision.  */
+strong_alias (__isnan, __isnanf)
+hidden_def (__isnanf)
+weak_alias (__isnanf, isnanf)
+
+#ifdef NO_LONG_DOUBLE
+strong_alias (__isnan, __isnanl)
+weak_alias (__isnan, isnanl)
+#endif
+
+#ifndef IS_IN_libm
+# if LONG_DOUBLE_COMPAT(libc, GLIBC_2_0)
+compat_symbol (libc, __isnan, __isnanl, GLIBC_2_0);
+compat_symbol (libc, isnan, isnanl, GLIBC_2_0);
+# endif
+#endif
+