1 /* softfp machine description for PA-RISC. 2 Copyright (C) 2009-2024 Free Software Foundation, Inc. 3 4 This file is part of GCC. 5 6 GCC is free software; you can redistribute it and/or modify it under 7 the terms of the GNU General Public License as published by the Free 8 Software Foundation; either version 3, or (at your option) any later 9 version. 10 11 GCC is distributed in the hope that it will be useful, but WITHOUT ANY 12 WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 for more details. 15 16 Under Section 7 of GPL version 3, you are granted additional 17 permissions described in the GCC Runtime Library Exception, version 18 3.1, as published by the Free Software Foundation. 19 20 You should have received a copy of the GNU General Public License and 21 a copy of the GCC Runtime Library Exception along with this program; 22 see the files COPYING3 and COPYING.RUNTIME respectively. If not, see 23 <http://www.gnu.org/licenses/>. */ 24 25 #ifdef __LP64__ 26 #define _FP_W_TYPE_SIZE 64 27 #define _FP_W_TYPE unsigned long 28 #define _FP_WS_TYPE signed long 29 #define _FP_I_TYPE long 30 31 typedef int TItype __attribute__ ((mode (TI))); 32 typedef unsigned int UTItype __attribute__ ((mode (TI))); 33 #define TI_BITS (__CHAR_BIT__ * (int) sizeof (TItype)) 34 35 #define _FP_MUL_MEAT_S(R,X,Y) \ 36 _FP_MUL_MEAT_1_wide(_FP_WFRACBITS_S,R,X,Y,umul_ppmm) 37 #define _FP_MUL_MEAT_D(R,X,Y) \ 38 _FP_MUL_MEAT_1_wide(_FP_WFRACBITS_D,R,X,Y,umul_ppmm) 39 #define _FP_MUL_MEAT_Q(R,X,Y) \ 40 _FP_MUL_MEAT_2_wide(_FP_WFRACBITS_Q,R,X,Y,umul_ppmm) 41 42 #define _FP_DIV_MEAT_S(R,X,Y) _FP_DIV_MEAT_1_udiv_norm(S,R,X,Y) 43 #define _FP_DIV_MEAT_D(R,X,Y) _FP_DIV_MEAT_1_udiv_norm(D,R,X,Y) 44 #define _FP_DIV_MEAT_Q(R,X,Y) _FP_DIV_MEAT_2_udiv(Q,R,X,Y) 45 46 #define _FP_NANFRAC_S (_FP_QNANBIT_S - 1) 47 #define _FP_NANFRAC_D (_FP_QNANBIT_D - 1) 48 #define _FP_NANFRAC_Q (_FP_QNANBIT_Q - 1), -1 49 #else 50 #define _FP_W_TYPE_SIZE 32 51 #define _FP_W_TYPE unsigned int 52 #define _FP_WS_TYPE signed int 53 #define _FP_I_TYPE int 54 55 #define _FP_MUL_MEAT_S(R,X,Y) \ 56 _FP_MUL_MEAT_1_wide(_FP_WFRACBITS_S,R,X,Y,umul_ppmm) 57 #define _FP_MUL_MEAT_D(R,X,Y) \ 58 _FP_MUL_MEAT_2_wide(_FP_WFRACBITS_D,R,X,Y,umul_ppmm) 59 #define _FP_MUL_MEAT_Q(R,X,Y) \ 60 _FP_MUL_MEAT_4_wide(_FP_WFRACBITS_Q,R,X,Y,umul_ppmm) 61 62 #define _FP_DIV_MEAT_S(R,X,Y) _FP_DIV_MEAT_1_udiv_norm(S,R,X,Y) 63 #define _FP_DIV_MEAT_D(R,X,Y) _FP_DIV_MEAT_2_udiv(D,R,X,Y) 64 #define _FP_DIV_MEAT_Q(R,X,Y) _FP_DIV_MEAT_4_udiv(Q,R,X,Y) 65 66 #define _FP_NANFRAC_S (_FP_QNANBIT_S - 1) 67 #define _FP_NANFRAC_D (_FP_QNANBIT_D - 1), -1 68 #define _FP_NANFRAC_Q (_FP_QNANBIT_Q - 1), -1, -1, -1 69 #endif 70 71 /* The type of the result of a floating point comparison. This must 72 match __libgcc_cmp_return__ in GCC for the target. */ 73 typedef int __gcc_CMPtype __attribute__ ((mode (__libgcc_cmp_return__))); 74 #define CMPtype __gcc_CMPtype 75 76 #define _FP_NANSIGN_S 0 77 #define _FP_NANSIGN_D 0 78 #define _FP_NANSIGN_Q 0 79 80 #define _FP_KEEPNANFRACP 1 81 #define _FP_QNANNEGATEDP 1 82 83 /* Comment from glibc: */ 84 /* From my experiments it seems X is chosen unless one of the 85 NaNs is sNaN, in which case the result is NANSIGN/NANFRAC. */ 86 # define _FP_CHOOSENAN(fs, wc, R, X, Y, OP) \ 87 do { \ 88 if ((_FP_FRAC_HIGH_RAW_##fs(X) | \ 89 _FP_FRAC_HIGH_RAW_##fs(Y)) & _FP_QNANBIT_##fs) \ 90 { \ 91 R##_s = _FP_NANSIGN_##fs; \ 92 _FP_FRAC_SET_##wc(R,_FP_NANFRAC_##fs); \ 93 } \ 94 else \ 95 { \ 96 R##_s = X##_s; \ 97 _FP_FRAC_COPY_##wc(R,X); \ 98 } \ 99 R##_c = FP_CLS_NAN; \ 100 } while (0) 101 102 #define FP_RND_NEAREST (0 << 9) 103 #define FP_RND_ZERO (1 << 9) 104 #define FP_RND_PINF (2 << 9) 105 #define FP_RND_MINF (3 << 9) 106 #define FP_RND_MASK (3 << 9) 107 108 #define FP_EX_INEXACT 0x01 109 #define FP_EX_UNDERFLOW 0x02 110 #define FP_EX_OVERFLOW 0x04 111 #define FP_EX_DIVZERO 0x08 112 #define FP_EX_INVALID 0x10 113 #define FP_EX_ALL 0x1F 114 #define FP_EX_SHIFT 27 115 116 #define _FP_TININESS_AFTER_ROUNDING 1 117 118 #define _FP_DECL_EX \ 119 unsigned int _fcsr __attribute__ ((unused)) = FP_RND_NEAREST 120 121 /* Get floating-point status. */ 122 #define _FPU_GETCW(cw) \ 123 ({ \ 124 union { unsigned long long __fpreg; \ 125 unsigned int __halfreg[2]; } __fullfp; \ 126 /* Get the current status word. */ \ 127 __asm__ ("fstd %%fr0,0(%1)\n\t" \ 128 "fldd 0(%1),%%fr0\n\t" \ 129 : "=m" (__fullfp.__fpreg) \ 130 : "r" (&__fullfp.__fpreg) \ 131 : "%r0"); \ 132 cw = __fullfp.__halfreg[0]; \ 133 }) 134 135 #define FP_INIT_ROUNDMODE _FPU_GETCW(_fcsr) 136 #define FP_ROUNDMODE (_fcsr & FP_RND_MASK) 137 #define FP_TRAPPING_EXCEPTIONS (_fcsr & FP_EX_ALL) 138 139 void __sfp_handle_exceptions (int); 140 141 #define FP_HANDLE_EXCEPTIONS \ 142 do { \ 143 if (__builtin_expect (_fex, 0)) \ 144 __sfp_handle_exceptions (_fex); \ 145 } while (0) 146 147 #define __LITTLE_ENDIAN 1234 148 #define __BIG_ENDIAN 4321 149 150 #define __BYTE_ORDER __BIG_ENDIAN 151 152 /* Define ALIASNAME as a strong alias for NAME. */ 153 # define strong_alias(name, aliasname) _strong_alias(name, aliasname) 154 # define _strong_alias(name, aliasname) \ 155 extern __typeof (name) aliasname __attribute__ ((alias (#name))); 156
Indexes created Sat Feb 28 05:31:39 UTC 2026