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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.
aj/revert-sunrpc
David S. Miller 14 years ago
parent
ead89f9695
commit
dfdb8ff299
10 changed files with 234 additions and 0 deletions
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  1. 10
      ChangeLog
  2. 32
      sysdeps/sparc/sparc32/fpu/s_signbit.S
  3. 1
      sysdeps/sparc/sparc32/fpu/s_signbitf.S
  4. 32
      sysdeps/sparc/sparc32/fpu/s_signbitl.S
  5. 32
      sysdeps/sparc/sparc32/sparcv9/fpu/s_isnan.S
  6. 33
      sysdeps/sparc/sparc64/fpu/s_isnan.S
  7. 32
      sysdeps/sparc/sparc64/fpu/s_isnanf.S
  8. 34
      sysdeps/sparc/sparc64/fpu/s_signbit.S
  9. 27
      sysdeps/sparc/sparc64/fpu/s_signbitf.S
  10. 1
      sysdeps/sparc/sparc64/fpu/s_signbitl.S

10
ChangeLog
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@ -1,5 +1,15 @@
2012-03-01 David S. Miller <davem@davemloft.net>
* 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.
* sysdeps/sparc/fpu/libm-test-ulps: Update.
* sysdeps/sparc/sparc32/fpu/libm-test-ulps: Move...

32
sysdeps/sparc/sparc32/fpu/s_signbit.S
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/* signbit(). sparc32 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 (__signbit)
retl
srl %o0, 31, %o0
END (__signbit)
weak_alias (__signbit, signbit)
/* On 32-bit the double version will also always work for
single-precision since in both cases the word with the
sign bit in it is passed always in register %o0. */
strong_alias (__signbit, __signbitf)
hidden_def (__signbitf)
weak_alias (__signbitf, signbitf)

1
sysdeps/sparc/sparc32/fpu/s_signbitf.S
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@ -0,0 +1 @@
/* signbitf is implemented in s_signbit.S */

32
sysdeps/sparc/sparc32/fpu/s_signbitl.S
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/* signbitl(). sparc32 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>
#include <math_ldbl_opt.h>
ENTRY (___signbitl)
ld [%o0], %o1
retl
srl %o1, 31, %o0
END (___signbitl)
#ifdef IS_IN_libm
long_double_symbol (libm, ___signbitl, __signbitl);
#else
long_double_symbol (libc, ___signbitl, __signbitl);
#endif

32
sysdeps/sparc/sparc32/sparcv9/fpu/s_isnan.S
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/* isnan(). sparc32 v9 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 (__isnan)
sethi %hi(0x7ff00000), %g1
sllx %o0, 33, %o0
sllx %g1, 32, %g1
srlx %o0, 1, %o0
or %o0, %o1, %o0
sub %g1, %o0, %o0
retl
srlx %o0, 63, %o0
END (__isnan)
hidden_def (__isnan)
weak_alias (__isnan, isnan)

33
sysdeps/sparc/sparc64/fpu/s_isnan.S
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/* isnan(). 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 (__isnan)
std %f0, [%sp + STACK_BIAS + 128]
sethi %hi(0x7ff00000), %g1
ldx [%sp + STACK_BIAS + 128], %o0
sllx %g1, 32, %g1
sllx %o0, 1, %o0
srlx %o0, 1, %o0
sub %g1, %o0, %o0
retl
srlx %o0, 63, %o0
END (__isnan)
hidden_def (__isnan)
weak_alias (__isnan, isnan)

32
sysdeps/sparc/sparc64/fpu/s_isnanf.S
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@ -0,0 +1,32 @@
/* 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)

34
sysdeps/sparc/sparc64/fpu/s_signbit.S
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@ -0,0 +1,34 @@
/* signbit(). 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 (__signbit)
st %f0, [%sp + STACK_BIAS + 128]
ld [%sp + STACK_BIAS + 128], %o0
retl
srl %o0, 31, %o0
END (__signbit)
weak_alias (__signbit, signbit)
/* On 64-bit the double version will also always work for
long-double-precision since in both cases the word with the
sign bit in it is passed always in register %f0. */
strong_alias (__signbit, __signbitl)
hidden_def (__signbitl)
weak_alias (__signbitl, signbitl)

27
sysdeps/sparc/sparc64/fpu/s_signbitf.S
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@ -0,0 +1,27 @@
/* signbitf(). 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 (__signbitf)
st %f1, [%sp + STACK_BIAS + 128]
ld [%sp + STACK_BIAS + 128], %o0
retl
srl %o0, 31, %o0
END (__signbitf)
weak_alias (__signbitf, signbitf)

1
sysdeps/sparc/sparc64/fpu/s_signbitl.S
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@ -0,0 +1 @@
/* signbitl is implemented in s_signbit.S */
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