glibc/sysdeps/sparc/sparc64/fpu/s_isnanf.S
David S. Miller dfdb8ff299 Optimized sparc assembler for signbit{,f,l} and some variants of isnan.
* sysdeps/sparc/sparc32/fpu/s_signbit.S: New file.
	* sysdeps/sparc/sparc32/fpu/s_signbitf.S: New file.
	* sysdeps/sparc/sparc32/fpu/s_signbitl.S: New file.
	* sysdeps/sparc/sparc32/sparcv9/fpu/s_isnan.S: New file.
	* sysdeps/sparc/sparc64/fpu/s_isnan.S: New file.
	* sysdeps/sparc/sparc64/fpu/s_isnanf.S: New file.
	* sysdeps/sparc/sparc64/fpu/s_signbit.S: New file.
	* sysdeps/sparc/sparc64/fpu/s_signbitf.S: New file.
	* sysdeps/sparc/sparc64/fpu/s_signbitl.S: New file.
2012-03-01 20:43:38 -08:00

33 lines
1.1 KiB
ArmAsm

/* isnanf(). sparc64 version.
Copyright (C) 2012 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, see
<http://www.gnu.org/licenses/>. */
#include <sysdep.h>
ENTRY (__isnanf)
st %f1, [%sp + STACK_BIAS + 128]
sethi %hi(0x7f800000), %g1
lduw [%sp + STACK_BIAS + 128], %o0
sll %o0, 1, %o0
srl %o0, 1, %o0
sub %g1, %o0, %o0
retl
srl %o0, 31, %o0
END (__isnanf)
hidden_def (__isnanf)
weak_alias (__isnanf, isnanf)