1/* Various Thresholds of MPFR, not exported. -*- mode: C -*- 2 3Copyright 2005-2023 Free Software Foundation, Inc. 4 5This file is part of the GNU MPFR Library. 6 7The GNU MPFR Library is free software; you can redistribute it and/or modify 8it under the terms of the GNU Lesser General Public License as published by 9the Free Software Foundation; either version 3 of the License, or (at your 10option) any later version. 11 12The GNU MPFR Library is distributed in the hope that it will be useful, but 13WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 14or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public 15License for more details. 16 17You should have received a copy of the GNU Lesser General Public License 18along with the GNU MPFR Library; see the file COPYING.LESSER. If not, see 19https://www.gnu.org/licenses/ or write to the Free Software Foundation, Inc., 2051 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. */ 21 22#ifndef __MPFR_IMPL_H__ 23# error "MPFR Internal not included" 24#endif 25 26/* Threshold when testing coverage */ 27#if defined(MPFR_TUNE_COVERAGE) 28#define MPFR_TUNE_CASE "src/generic/coverage/mparam.h" 29#include "generic/coverage/mparam.h" 30 31/* Note: the different macros used here are those defined by gcc, 32 for example with "gcc -mtune=native -dM -E -xc /dev/null". 33 34 The best parameters may depend on the local machine, not just 35 the architecture or even the target processor as accepted by 36 -mtune. Target-related options set by GCC can be obtained with 37 the "-Q --help=target --help=params" options (in addition to 38 -march=... and -mtune=...). 39 See https://gcc.gnu.org/pipermail/gcc-help/2021-September/140720.html */ 40 41#elif (defined (__tune_core2__) || defined (__tune_nocona__)) && defined (__x86_64) /* 64-bit Core 2 or Xeon */ 42#define MPFR_TUNE_CASE "src/x86_64/core2/mparam.h" 43#include "x86_64/core2/mparam.h" 44 45/* Put that before __x86_64__ since __x86_64__ is also defined on AMD 64, 46 We also have to define __tune_k8__ since __amd64__ is also defined on 47 Intel x86_64! Ignore Clang as it defines both of these macros even on 48 Intel x86_64, and it does not seem to be possible to provide tuning 49 information when compiling with Clang, so that it is better to select 50 generic parameters for x86_64. */ 51#elif defined (__amd64__) && (defined (__tune_k8__) || defined (__tune_znver1__)) && ! defined (__clang__) /* AMD 64 */ 52#define MPFR_TUNE_CASE "src/amd/mparam.h" 53#include "amd/mparam.h" 54 55/* _M_X64 is for the Microsoft compiler, see 56 https://docs.microsoft.com/en-us/cpp/preprocessor/predefined-macros */ 57#elif defined (__x86_64__) || defined (_M_X64) 58/* generic parameters for x86_64 */ 59#define MPFR_TUNE_CASE "src/x86_64/mparam.h" 60#include "x86_64/mparam.h" 61 62#elif defined (__i386) || defined(_M_IX86) 63/* we consider all other 386's here, 64 including a 64-bit machine with gmp/mpfr compiled with ABI=32 */ 65#define MPFR_TUNE_CASE "src/x86/mparam.h" 66#include "x86/mparam.h" 67 68#elif defined (__PPC64__) /* Threshold for 64-bit PowerPC */ 69#define MPFR_TUNE_CASE "src/powerpc64/mparam.h" 70#include "powerpc64/mparam.h" 71 72#elif defined (__sparc_v9__) /* Threshold for 64-bit Sparc */ 73#define MPFR_TUNE_CASE "src/sparc64/mparam.h" 74#include "sparc64/mparam.h" 75 76#elif defined (__mips__) /* MIPS */ 77#define MPFR_TUNE_CASE "src/mips/mparam.h" 78#include "mips/mparam.h" 79 80#elif defined (__arm__) || defined (_M_ARM) /* ARM */ 81#define MPFR_TUNE_CASE "src/arm/mparam.h" 82#include "arm/mparam.h" 83 84#else 85#define MPFR_TUNE_CASE "default" 86#endif 87 88/**************************************************************** 89 * Default values of Threshold. * 90 * Must be included in any case: it checks, for every constant, * 91 * if it has been defined, and it sets it to a default value if * 92 * it was not previously defined. * 93 ****************************************************************/ 94#include "generic/mparam.h" 95