mirror/glibc
2
0
Fork 0
mirror of git://sourceware.org/git/glibc.git synced 2024-11-27 03:41:23 +08:00
Code Issues Packages Projects Releases Wiki Activity

Optimized 64-bit sparc assembler for finite{,f} and isinf{,f}.

Browse Source 
* sysdeps/sparc/sparc64/fpu/s_finite.S: New file.
	* sysdeps/sparc/sparc64/fpu/s_finitef.S: New file.
	* sysdeps/sparc/sparc64/fpu/s_isinf.S: New file.
	* sysdeps/sparc/sparc64/fpu/s_isinff.S: New file.
This commit is contained in:
David S. Miller 2012-03-01 22:14:35 -08:00
parent dfdb8ff299
commit 759707dee3
5 changed files with 134 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
ChangeLog
View File

@ -1,5 +1,10 @@
2012-03-01 David S. Miller <davem@davemloft.net>
* sysdeps/sparc/sparc64/fpu/s_finite.S: New file.
* sysdeps/sparc/sparc64/fpu/s_finitef.S: New file.
* sysdeps/sparc/sparc64/fpu/s_isinf.S: New file.
* sysdeps/sparc/sparc64/fpu/s_isinff.S: New file.
* 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.

31
sysdeps/sparc/sparc64/fpu/s_finite.S Normal file
View File

@ -0,0 +1,31 @@
/* finite(). 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 (__finite)
fabsd %f0, %f0
st %f0, [%sp + STACK_BIAS + 128]
sethi %hi(0x7ff00000), %o2
ld [%sp + STACK_BIAS + 128], %o0
sub %o0, %o2, %o0
retl
srl %o0, 31, %o0
END (__finite)
hidden_def (__finite)
weak_alias (__finite, finite)

31
sysdeps/sparc/sparc64/fpu/s_finitef.S Normal file
View File

@ -0,0 +1,31 @@
/* finitef(). 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 (__finitef)
fabss %f1, %f0
st %f0, [%sp + STACK_BIAS + 128]
sethi %hi(0x7f800000), %o2
ld [%sp + STACK_BIAS + 128], %o0
sub %o0, %o2, %o0
retl
srl %o0, 31, %o0
END (__finitef)
hidden_def (__finitef)
weak_alias (__finitef, finitef)

34
sysdeps/sparc/sparc64/fpu/s_isinf.S Normal file
View File

@ -0,0 +1,34 @@
/* isinf(). 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 (__isinf)
std %f0, [%sp + STACK_BIAS + 128]
sethi %hi(0x7ff00000), %o2
ldx [%sp + STACK_BIAS + 128], %g1
sllx %o2, 32, %o2
sllx %g1, 1, %o4
srlx %o4, 1, %o5
srax %g1, 62, %o0
xor %o5, %o2, %o3
retl
movrne %o3, %g0, %o0
END (__isinf)
hidden_def (__isinf)
weak_alias (__isinf, isinf)

33
sysdeps/sparc/sparc64/fpu/s_isinff.S Normal file
View File

@ -0,0 +1,33 @@
/* isinff(). 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 (__isinff)
st %f1, [%sp + STACK_BIAS + 128]
sethi %hi(0x7f800000), %o2
lduw [%sp + STACK_BIAS + 128], %g1
sll %g1, 1, %o4
srl %o4, 1, %o5
sra %g1, 30, %o0
xor %o5, %o2, %o3
retl
movrne %o3, %g0, %o0
END (__isinff)
hidden_def (__isinff)
weak_alias (__isinff, isinff)