gcc/libgcc/config/rs6000/fixkfti.c

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float128-sed: New files to convert TF names to KF names for PowerPC IEEE 128-bit floating... 2016-01-21 Michael Meissner <meissner@linux.vnet.ibm.com> Steven Munroe <munroesj@linux.vnet.ibm.com> Tulio Magno Quites Machado Filho <tulioqm@br.ibm.com> * config/rs6000/float128-sed: New files to convert TF names to KF names for PowerPC IEEE 128-bit floating point support. * config/rs6000/float128-sed-hw: Likewise. * config/rs6000/float128-hw.c: New file for ISA 3.0 IEEE 128-bit floating point hardware support. * config/rs6000/float128-ifunc.c: New file to pick either IEEE 128-bit floating point software emulation or use ISA 3.0 hardware support if it is available. * config/rs6000/quad-float128.h: New file to support IEEE 128-bit floating point. * config/rs6000/extendkftf2-sw.c: New file, convert IEEE 128-bit floating point to IBM extended double. * config/rs6000/trunctfkf2-sw.c: New file, convert IBM extended double to IEEE 128-bit floating point. * config/rs6000/t-float128: New Makefile fragments to enable building __float128 emulation support. * config/rs6000/t-float128-hw: Likewise. * config/rs6000/sfp-exceptions.c: New file to provide exception support for IEEE 128-bit floating point. * config/rs6000/floattikf.c: New files for converting between IEEE 128-bit floating point and signed/unsigned 128-bit integers. * config/rs6000/fixunskfti.c: Likewise. * config/rs6000/fixkfti.c: Likewise. * config/rs6000/floatuntikf.c: Likewise. * config/rs6000/sfp-machine.h (_FP_W_TYPE_SIZE): Use 64-bit types when building on 64-bit systems, or when VSX is enabled. (_FP_W_TYPE): Likewise. (_FP_WS_TYPE): Likewise. (_FP_I_TYPE): Likewise. (TItype): Define on 64-bit systems. (UTItype): Likewise. (TI_BITS): Likewise. (_FP_MUL_MEAT_D): Add support for using 64-bit types. (_FP_MUL_MEAT_Q): Likewise. (_FP_DIV_MEAT_D): Likewise. (_FP_DIV_MEAT_Q): Likewise. (_FP_NANFRAC_D): Likewise. (_FP_NANFRAC_Q): Likewise. (ISA_BIT): Add exception support if we are being compiled on a machine with hardware floating point support to build the IEEE 128-bit emulation functions. (FP_EX_INVALID): Likewise. (FP_EX_OVERFLOW): Likewise. (FP_EX_UNDERFLOW): Likewise. (FP_EX_DIVZERO): Likewise. (FP_EX_INEXACT): Likewise. (FP_EX_ALL): Likewise. (__sfp_handle_exceptions): Likewise. (FP_HANDLE_EXCEPTIONS): Likewise. (FP_RND_NEAREST): Likewise. (FP_RND_ZERO): Likewise. (FP_RND_PINF): Likewise. (FP_RND_MINF): Likewise. (FP_RND_MASK): Likewise. (_FP_DECL_EX): Likewise. (FP_INIT_ROUNDMODE): Likewise. (FP_ROUNDMODE): Likewise. * libgcc/config.host (powerpc*-*-linux*): If compiler can compile VSX code, enable IEEE 128-bit floating point. If the compiler can compile IEEE 128-bit floating point code with ISA 3.0 IEEE 128-bit floating point hardware instructions and it supports declaring functions with the ifunc attribute, enable ifunc functions to switch between software and hardware support. * configure.ac (powerpc*-*-linux*): Likewise. * configure: Regenerate. Co-Authored-By: Steven Munroe <munroesj@linux.vnet.ibm.com> Co-Authored-By: Tulio Magno Quites Machado Filho <tulioqm@br.ibm.com> From-SVN: r232685
2016-01-21 18:52:33 +01:00
/* Software floating-point emulation, convert IEEE quad to 128bit signed
integer.
Copyright (C) 2016-2017 Free Software Foundation, Inc.
float128-sed: New files to convert TF names to KF names for PowerPC IEEE 128-bit floating... 2016-01-21 Michael Meissner <meissner@linux.vnet.ibm.com> Steven Munroe <munroesj@linux.vnet.ibm.com> Tulio Magno Quites Machado Filho <tulioqm@br.ibm.com> * config/rs6000/float128-sed: New files to convert TF names to KF names for PowerPC IEEE 128-bit floating point support. * config/rs6000/float128-sed-hw: Likewise. * config/rs6000/float128-hw.c: New file for ISA 3.0 IEEE 128-bit floating point hardware support. * config/rs6000/float128-ifunc.c: New file to pick either IEEE 128-bit floating point software emulation or use ISA 3.0 hardware support if it is available. * config/rs6000/quad-float128.h: New file to support IEEE 128-bit floating point. * config/rs6000/extendkftf2-sw.c: New file, convert IEEE 128-bit floating point to IBM extended double. * config/rs6000/trunctfkf2-sw.c: New file, convert IBM extended double to IEEE 128-bit floating point. * config/rs6000/t-float128: New Makefile fragments to enable building __float128 emulation support. * config/rs6000/t-float128-hw: Likewise. * config/rs6000/sfp-exceptions.c: New file to provide exception support for IEEE 128-bit floating point. * config/rs6000/floattikf.c: New files for converting between IEEE 128-bit floating point and signed/unsigned 128-bit integers. * config/rs6000/fixunskfti.c: Likewise. * config/rs6000/fixkfti.c: Likewise. * config/rs6000/floatuntikf.c: Likewise. * config/rs6000/sfp-machine.h (_FP_W_TYPE_SIZE): Use 64-bit types when building on 64-bit systems, or when VSX is enabled. (_FP_W_TYPE): Likewise. (_FP_WS_TYPE): Likewise. (_FP_I_TYPE): Likewise. (TItype): Define on 64-bit systems. (UTItype): Likewise. (TI_BITS): Likewise. (_FP_MUL_MEAT_D): Add support for using 64-bit types. (_FP_MUL_MEAT_Q): Likewise. (_FP_DIV_MEAT_D): Likewise. (_FP_DIV_MEAT_Q): Likewise. (_FP_NANFRAC_D): Likewise. (_FP_NANFRAC_Q): Likewise. (ISA_BIT): Add exception support if we are being compiled on a machine with hardware floating point support to build the IEEE 128-bit emulation functions. (FP_EX_INVALID): Likewise. (FP_EX_OVERFLOW): Likewise. (FP_EX_UNDERFLOW): Likewise. (FP_EX_DIVZERO): Likewise. (FP_EX_INEXACT): Likewise. (FP_EX_ALL): Likewise. (__sfp_handle_exceptions): Likewise. (FP_HANDLE_EXCEPTIONS): Likewise. (FP_RND_NEAREST): Likewise. (FP_RND_ZERO): Likewise. (FP_RND_PINF): Likewise. (FP_RND_MINF): Likewise. (FP_RND_MASK): Likewise. (_FP_DECL_EX): Likewise. (FP_INIT_ROUNDMODE): Likewise. (FP_ROUNDMODE): Likewise. * libgcc/config.host (powerpc*-*-linux*): If compiler can compile VSX code, enable IEEE 128-bit floating point. If the compiler can compile IEEE 128-bit floating point code with ISA 3.0 IEEE 128-bit floating point hardware instructions and it supports declaring functions with the ifunc attribute, enable ifunc functions to switch between software and hardware support. * configure.ac (powerpc*-*-linux*): Likewise. * configure: Regenerate. Co-Authored-By: Steven Munroe <munroesj@linux.vnet.ibm.com> Co-Authored-By: Tulio Magno Quites Machado Filho <tulioqm@br.ibm.com> From-SVN: r232685
2016-01-21 18:52:33 +01:00
This file is part of the GNU C Library.
Contributed by Steven Munroe (munroesj@linux.vnet.ibm.com)
Code is based on the main soft-fp library written by:
Uros Bizjak (ubizjak@gmail.com).
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/>. */
#ifdef _ARCH_PPC64
#include "soft-fp.h"
#include "quad-float128.h"
TItype
__fixkfti (TFtype a)
{
FP_DECL_EX;
FP_DECL_Q (A);
UTItype r;
FP_INIT_EXCEPTIONS;
FP_UNPACK_RAW_Q (A, a);
FP_TO_INT_Q (r, A, TI_BITS, 1);
FP_HANDLE_EXCEPTIONS;
return r;
}
#endif