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db89d474 | 1 | /* softfp machine description for PA-RISC. |
a945c346 | 2 | Copyright (C) 2009-2024 Free Software Foundation, Inc. |
db89d474 JDA |
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))); |