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Diffstat (limited to 'REORG.TODO/sysdeps/powerpc/powerpc32/power7/fpu/s_isinf.S')
| -rw-r--r-- | REORG.TODO/sysdeps/powerpc/powerpc32/power7/fpu/s_isinf.S | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/powerpc/powerpc32/power7/fpu/s_isinf.S b/REORG.TODO/sysdeps/powerpc/powerpc32/power7/fpu/s_isinf.S new file mode 100644 index 0000000000..668815761a --- /dev/null +++ b/REORG.TODO/sysdeps/powerpc/powerpc32/power7/fpu/s_isinf.S @@ -0,0 +1,85 @@ +/* isinf(). PowerPC32/POWER7 version. + Copyright (C) 2010-2017 Free Software Foundation, Inc. + Contributed by Luis Machado <luisgpm@br.ibm.com>. + 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 __isinf(x) */ + .section .rodata.cst8,"aM",@progbits,8 + .align 3 +.LC0: /* 1.0 */ + .quad 0x3ff0000000000000 + + .section ".text" + .type __isinf, @function + .machine power7 +ENTRY (__isinf) +#ifdef SHARED + mflr r11 + cfi_register(lr,r11) + + SETUP_GOT_ACCESS(r9,got_label) + addis r9,r9,.LC0-got_label@ha + lfd fp0,.LC0-got_label@l(r9) + + mtlr r11 + cfi_same_value (lr) +#else + lis r9,.LC0@ha + lfd fp0,.LC0@l(r9) +#endif + ftdiv cr7,fp1,fp0 + li r3,0 + bflr 29 /* If not INF, return. */ + + /* Either we have +INF or -INF. */ + + stwu r1,-16(r1) /* Allocate stack space. */ + stfd fp1,8(r1) /* Transfer FP to GPR's. */ + ori 2,2,0 /* Force a new dispatch group. */ + lhz r4,8+HISHORT(r1) /* Fetch the upper 16 bits of the FP value + (biased exponent and sign bit). */ + addi r1,r1,16 /* Reset the stack pointer. */ + cmpwi cr7,r4,0x7ff0 /* r4 == 0x7ff0? */ + li r3,1 + beqlr cr7 /* EQ means INF, otherwise -INF. */ + li r3,-1 + blr + END (__isinf) + +hidden_def (__isinf) +weak_alias (__isinf, isinf) + +/* It turns out that the 'double' version will also always work for + single-precision. */ +strong_alias (__isinf, __isinff) +hidden_def (__isinff) +weak_alias (__isinff, isinff) + +#ifdef NO_LONG_DOUBLE +strong_alias (__isinf, __isinfl) +weak_alias (__isinf, isinfl) +#endif + +#if !IS_IN (libm) +# if LONG_DOUBLE_COMPAT(libc, GLIBC_2_0) +compat_symbol (libc, __isinf, __isinfl, GLIBC_2_0); +compat_symbol (libc, isinf, isinfl, GLIBC_2_0); +# endif +#endif |