diff options
Diffstat (limited to 'libgcc/config/rs6000/float128-hw.c')
| -rw-r--r-- | libgcc/config/rs6000/float128-hw.c | 207 |
1 files changed, 207 insertions, 0 deletions
diff --git a/libgcc/config/rs6000/float128-hw.c b/libgcc/config/rs6000/float128-hw.c new file mode 100644 index 00000000000..43f70f4e7fd --- /dev/null +++ b/libgcc/config/rs6000/float128-hw.c @@ -0,0 +1,207 @@ +/* Automatic switching between software and hardware IEEE 128-bit + floating-point emulation for PowerPC. + + Copyright (C) 2016 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Michael Meissner (meissner@linux.vnet.ibm.com) + Code is based on the main soft-fp library written by: + Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + 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. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + + 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 <soft-fp.h> +#include <quad-float128.h> + +#ifndef __FLOAT128_HARDWARE__ +#error "This module must be compiled with IEEE 128-bit hardware support" +#endif + +TFtype +__addkf3_hw (TFtype a, TFtype b) +{ + return a + b; +} + +TFtype +__subkf3_hw (TFtype a, TFtype b) +{ + return a - b; +} + +TFtype +__mulkf3_hw (TFtype a, TFtype b) +{ + return a * b; +} + +TFtype +__divkf3_hw (TFtype a, TFtype b) +{ + return a / b; +} + +TFtype +__negkf2_hw (TFtype a) +{ + return -a; +} + +TFtype +__floatsikf_hw (SItype_ppc a) +{ + return (TFtype) a; +} + +TFtype +__floatunsikf_hw (USItype_ppc a) +{ + return (TFtype) a; +} + +TFtype +__floatdikf_hw (DItype_ppc a) +{ + return (TFtype) a; +} + +TFtype +__floatundikf_hw (UDItype_ppc a) +{ + return (TFtype) a; +} + +SItype_ppc +__fixkfsi_hw (TFtype a) +{ + return (SItype_ppc) a; +} + +USItype_ppc +__fixunskfsi_hw (TFtype a) +{ + return (USItype_ppc) a; +} + +DItype_ppc +__fixkfdi_hw (TFtype a) +{ + return (DItype_ppc) a; +} + +UDItype_ppc +__fixunskfdi_hw (TFtype a) +{ + return (UDItype_ppc) a; +} + +TFtype +__extendsfkf2_hw (float a) +{ + return (TFtype) a; +} + +TFtype +__extenddfkf2_hw (double a) +{ + return (TFtype) a; +} + +float +__trunckfsf2_hw (TFtype a) +{ + return (float) a; +} + +double +__trunckfdf2_hw (TFtype a) +{ + return (double) a; +} + +/* __eqkf2 returns 0 if equal, or 1 if not equal or NaN. */ +CMPtype +__eqkf2_hw (TFtype a, TFtype b) +{ + return (a != b); +} + +/* __gekf2 returns -1 if a < b, 0 if a == b, +1 if a > b, or -2 if NaN. */ +CMPtype +__gekf2_hw (TFtype a, TFtype b) +{ + if (a < b) + return -1; + + else if (__builtin_isunordered (a, b)) + return -2; + + else if (a == b) + return 0; + + return 1; +} + +/* __lekf2 returns -1 if a < b, 0 if a == b, +1 if a > b, or +2 if NaN. */ +CMPtype +__lekf2_hw (TFtype a, TFtype b) +{ + if (a < b) + return -1; + + else if (__builtin_isunordered (a, b)) + return 2; + + else if (a == b) + return 0; + + return 1; +} + +/* __unordkf2 returns 1 if NaN or 0 otherwise. */ +CMPtype +__unordkf2_hw (TFtype a, TFtype b) +{ + return (__builtin_isunordered (a, b)) ? 1 : 0; +} + +/* Convert __float128 to __ibm128. */ +IBM128_TYPE +__extendkftf2_hw (TFtype value) +{ + IBM128_TYPE ret; + + CVT_FLOAT128_TO_IBM128 (ret, value); + return ret; +} + +/* Convert __ibm128 to __float128. */ +TFtype +__trunctfkf2_hw (IBM128_TYPE value) +{ + TFtype ret; + + CVT_IBM128_TO_FLOAT128 (ret, value); + return ret; +} |