1 /* Definitions of target machine for GNU compiler, for HPs using the
3 Copyright (C) 1999-2017 Free Software Foundation, Inc.
5 This file is part of GCC.
7 GCC is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3, or (at your option)
12 GCC is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GCC; see the file COPYING3. If not see
19 <http://www.gnu.org/licenses/>. */
21 /* The default sizes for basic datatypes provided by GCC are not
22 correct for the PA64 runtime architecture.
24 In PA64, basic types have the following sizes
39 Make GCC agree with types.h. */
41 #define SIZE_TYPE "long unsigned int"
44 #define PTRDIFF_TYPE "long int"
47 #define WCHAR_TYPE "unsigned int"
49 #undef WCHAR_TYPE_SIZE
50 #define WCHAR_TYPE_SIZE 32
52 /* If it is not listed here, then the default selected by GCC is OK. */
53 #undef SHORT_TYPE_SIZE
54 #define SHORT_TYPE_SIZE 16
56 #define INT_TYPE_SIZE 32
58 #define LONG_TYPE_SIZE 64
59 #undef LONG_LONG_TYPE_SIZE
60 #define LONG_LONG_TYPE_SIZE 64
61 #undef FLOAT_TYPE_SIZE
62 #define FLOAT_TYPE_SIZE 32
63 #undef DOUBLE_TYPE_SIZE
64 #define DOUBLE_TYPE_SIZE 64
65 #undef LONG_DOUBLE_TYPE_SIZE
66 #define LONG_DOUBLE_TYPE_SIZE 128
68 /* Temporary until we figure out what to do with those *(&@$ 32bit
69 relocs which appear in stabs. */
70 #undef DBX_DEBUGGING_INFO
72 /* ?!? This needs to be made compile-time selectable.
74 The PA64 runtime model has arguments that grow to higher addresses
75 (like most other targets). The older runtime model has arguments
76 that grow to lower addresses. What fun. */
77 #undef ARGS_GROW_DOWNWARD
79 /* If defined, a C expression which determines whether the default
80 implementation of va_arg will attempt to pad down before reading the
81 next argument, if that argument is smaller than its aligned space as
82 controlled by PARM_BOUNDARY. If this macro is not defined, all such
83 arguments are padded down when BYTES_BIG_ENDIAN is true. We don't
84 want aggregates padded down. */
86 #define PAD_VARARGS_DOWN \
87 (!AGGREGATE_TYPE_P (type) \
88 && TREE_CODE (type) != COMPLEX_TYPE \
89 && TREE_CODE (type) != VECTOR_TYPE)
91 /* In the PA architecture, it is not possible to directly move data
92 between GENERAL_REGS and FP_REGS. On the 32-bit port, we use the
93 location at SP-16 because PA 1.X only supports 5-bit immediates for
94 floating-point loads and stores. We don't expose this location in
95 the RTL to avoid scheduling related problems. For example, the
96 store and load could be separated by a call to a pure or const
97 function which has no frame and this function might also use SP-16.
98 We have 14-bit immediates on the 64-bit port, so we use secondary
99 memory for the copies. */
100 #define PA_SECONDARY_MEMORY_NEEDED(MODE, CLASS1, CLASS2) \
101 (MAYBE_FP_REG_CLASS_P (CLASS1) != FP_REG_CLASS_P (CLASS2) \
102 || MAYBE_FP_REG_CLASS_P (CLASS2) != FP_REG_CLASS_P (CLASS1))