diff options
Diffstat (limited to 'REORG.TODO/sysdeps/powerpc/powerpc32/power6/fpu/s_isnan.S')
-rw-r--r-- | REORG.TODO/sysdeps/powerpc/powerpc32/power6/fpu/s_isnan.S | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/powerpc/powerpc32/power6/fpu/s_isnan.S b/REORG.TODO/sysdeps/powerpc/powerpc32/power6/fpu/s_isnan.S new file mode 100644 index 0000000000..5b19433cbf --- /dev/null +++ b/REORG.TODO/sysdeps/powerpc/powerpc32/power6/fpu/s_isnan.S @@ -0,0 +1,61 @@ +/* isnan(). PowerPC32 version. + Copyright (C) 2008-2017 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> + +/* int __isnan(x) */ + .machine power6 +EALIGN (__isnan, 4, 0) + stwu r1,-32(r1) + cfi_adjust_cfa_offset (32) + ori r1,r1,0 + stfd fp1,24(r1) /* copy FPR to GPR */ + ori r1,r1,0 + lwz r4,24+HIWORD(r1) + lwz r5,24+LOWORD(r1) + lis r0,0x7ff0 /* const long r0 0x7ff00000 00000000 */ + clrlwi r4,r4,1 /* x = fabs(x) */ + cmpw cr7,r4,r0 /* if (fabs(x) =< inf) */ + cmpwi cr6,r5,0 + li r3,0 /* then return 0 */ + addi r1,r1,32 + cfi_adjust_cfa_offset (-32) + bltlr+ cr7 + bgt- cr7,L(NaN) + beqlr+ cr6 +L(NaN): + li r3,1 /* else return 1 */ + blr + END (__isnan) + +hidden_def (__isnan) +weak_alias (__isnan, isnan) + +#ifdef NO_LONG_DOUBLE +strong_alias (__isnan, __isnanl) +weak_alias (__isnan, isnanl) +#endif + +#if !IS_IN (libm) +# if LONG_DOUBLE_COMPAT(libc, GLIBC_2_0) +compat_symbol (libc, __isnan, __isnanl, GLIBC_2_0); +compat_symbol (libc, isnan, isnanl, GLIBC_2_0); +# endif +#endif + |