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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.
This commit is contained in:
David S. Miller
parent
ead89f9695
commit
dfdb8ff299
10
ChangeLog
10
ChangeLog
@ -1,5 +1,15 @@
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2012-03-01 David S. Miller <davem@davemloft.net>
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* sysdeps/sparc/sparc32/fpu/s_signbit.S: New file.
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* sysdeps/sparc/sparc32/fpu/s_signbitf.S: New file.
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* sysdeps/sparc/sparc32/fpu/s_signbitl.S: New file.
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* sysdeps/sparc/sparc32/sparcv9/fpu/s_isnan.S: New file.
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* sysdeps/sparc/sparc64/fpu/s_isnan.S: New file.
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* sysdeps/sparc/sparc64/fpu/s_isnanf.S: New file.
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* sysdeps/sparc/sparc64/fpu/s_signbit.S: New file.
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* sysdeps/sparc/sparc64/fpu/s_signbitf.S: New file.
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* sysdeps/sparc/sparc64/fpu/s_signbitl.S: New file.
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* sysdeps/sparc/fpu/libm-test-ulps: Update.
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* sysdeps/sparc/sparc32/fpu/libm-test-ulps: Move...
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32
sysdeps/sparc/sparc32/fpu/s_signbit.S
Normal file
32
sysdeps/sparc/sparc32/fpu/s_signbit.S
Normal file
@ -0,0 +1,32 @@
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/* signbit(). sparc32 version.
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Copyright (C) 2012 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <sysdep.h>
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ENTRY (__signbit)
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retl
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srl %o0, 31, %o0
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END (__signbit)
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weak_alias (__signbit, signbit)
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/* On 32-bit the double version will also always work for
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single-precision since in both cases the word with the
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sign bit in it is passed always in register %o0. */
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strong_alias (__signbit, __signbitf)
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hidden_def (__signbitf)
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weak_alias (__signbitf, signbitf)
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1
sysdeps/sparc/sparc32/fpu/s_signbitf.S
Normal file
1
sysdeps/sparc/sparc32/fpu/s_signbitf.S
Normal file
@ -0,0 +1 @@
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/* signbitf is implemented in s_signbit.S */
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32
sysdeps/sparc/sparc32/fpu/s_signbitl.S
Normal file
32
sysdeps/sparc/sparc32/fpu/s_signbitl.S
Normal file
@ -0,0 +1,32 @@
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/* signbitl(). sparc32 version.
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Copyright (C) 2012 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <sysdep.h>
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#include <math_ldbl_opt.h>
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ENTRY (___signbitl)
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ld [%o0], %o1
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retl
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srl %o1, 31, %o0
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END (___signbitl)
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#ifdef IS_IN_libm
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long_double_symbol (libm, ___signbitl, __signbitl);
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#else
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long_double_symbol (libc, ___signbitl, __signbitl);
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#endif
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32
sysdeps/sparc/sparc32/sparcv9/fpu/s_isnan.S
Normal file
32
sysdeps/sparc/sparc32/sparcv9/fpu/s_isnan.S
Normal file
@ -0,0 +1,32 @@
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/* isnan(). sparc32 v9 version.
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Copyright (C) 2012 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <sysdep.h>
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ENTRY (__isnan)
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sethi %hi(0x7ff00000), %g1
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sllx %o0, 33, %o0
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sllx %g1, 32, %g1
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srlx %o0, 1, %o0
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or %o0, %o1, %o0
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sub %g1, %o0, %o0
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retl
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srlx %o0, 63, %o0
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END (__isnan)
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hidden_def (__isnan)
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weak_alias (__isnan, isnan)
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33
sysdeps/sparc/sparc64/fpu/s_isnan.S
Normal file
33
sysdeps/sparc/sparc64/fpu/s_isnan.S
Normal file
@ -0,0 +1,33 @@
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/* isnan(). sparc64 version.
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Copyright (C) 2012 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <sysdep.h>
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ENTRY (__isnan)
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std %f0, [%sp + STACK_BIAS + 128]
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sethi %hi(0x7ff00000), %g1
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ldx [%sp + STACK_BIAS + 128], %o0
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sllx %g1, 32, %g1
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sllx %o0, 1, %o0
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srlx %o0, 1, %o0
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sub %g1, %o0, %o0
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retl
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srlx %o0, 63, %o0
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END (__isnan)
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hidden_def (__isnan)
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weak_alias (__isnan, isnan)
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32
sysdeps/sparc/sparc64/fpu/s_isnanf.S
Normal file
32
sysdeps/sparc/sparc64/fpu/s_isnanf.S
Normal file
@ -0,0 +1,32 @@
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/* isnanf(). sparc64 version.
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Copyright (C) 2012 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <sysdep.h>
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ENTRY (__isnanf)
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st %f1, [%sp + STACK_BIAS + 128]
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sethi %hi(0x7f800000), %g1
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lduw [%sp + STACK_BIAS + 128], %o0
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sll %o0, 1, %o0
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srl %o0, 1, %o0
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sub %g1, %o0, %o0
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retl
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srl %o0, 31, %o0
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END (__isnanf)
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hidden_def (__isnanf)
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weak_alias (__isnanf, isnanf)
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34
sysdeps/sparc/sparc64/fpu/s_signbit.S
Normal file
34
sysdeps/sparc/sparc64/fpu/s_signbit.S
Normal file
@ -0,0 +1,34 @@
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/* signbit(). sparc64 version.
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Copyright (C) 2012 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <sysdep.h>
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ENTRY (__signbit)
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st %f0, [%sp + STACK_BIAS + 128]
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ld [%sp + STACK_BIAS + 128], %o0
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retl
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srl %o0, 31, %o0
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END (__signbit)
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weak_alias (__signbit, signbit)
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/* On 64-bit the double version will also always work for
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long-double-precision since in both cases the word with the
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sign bit in it is passed always in register %f0. */
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strong_alias (__signbit, __signbitl)
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hidden_def (__signbitl)
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weak_alias (__signbitl, signbitl)
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27
sysdeps/sparc/sparc64/fpu/s_signbitf.S
Normal file
27
sysdeps/sparc/sparc64/fpu/s_signbitf.S
Normal file
@ -0,0 +1,27 @@
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/* signbitf(). sparc64 version.
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Copyright (C) 2012 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <sysdep.h>
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ENTRY (__signbitf)
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st %f1, [%sp + STACK_BIAS + 128]
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ld [%sp + STACK_BIAS + 128], %o0
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retl
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srl %o0, 31, %o0
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END (__signbitf)
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weak_alias (__signbitf, signbitf)
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1
sysdeps/sparc/sparc64/fpu/s_signbitl.S
Normal file
1
sysdeps/sparc/sparc64/fpu/s_signbitl.S
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@ -0,0 +1 @@
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/* signbitl is implemented in s_signbit.S */
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