3b32d8a259
* 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.
47 lines
1.4 KiB
ArmAsm
47 lines
1.4 KiB
ArmAsm
/* isnanf(). PowerPC32 version.
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Copyright (C) 2008 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, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#include <sysdep.h>
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#include <math_ldbl_opt.h>
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/* int __isnanf(x) */
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.machine power6
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EALIGN (__isnanf, 4, 0)
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stwu r1,-32(r1)
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cfi_adjust_cfa_offset (32)
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ori r1,r1,0
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stfs fp1,24(r1) /* copy FPR to GPR */
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ori r1,r1,0
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lwz r4,24(r1)
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lis r0,0x7f80 /* const long r0 0x7f800000 */
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clrlwi r4,r4,1 /* x = fabs(x) */
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cmpw cr7,r4,r0 /* if (fabs(x) =< inf) */
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li r3,0 /* then return 0 */
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addi r1,r1,32
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cfi_adjust_cfa_offset (-32)
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blelr+ cr7
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L(NaN):
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li r3,1 /* else return 1 */
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blr
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END (__isnan)
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hidden_def (__isnanf)
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weak_alias (__isnanf, isnanf)
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