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/* Definitions of target machine for GNU compiler, for HPs using the
64bit runtime model.
Copyright (C) 1999-2020 Free Software Foundation, Inc.
This file is part of GCC.
GCC is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3, or (at your option)
any later version.
GCC 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING3. If not see
<http://www.gnu.org/licenses/>. */
/* The default sizes for basic datatypes provided by GCC are not
correct for the PA64 runtime architecture.
In PA64, basic types have the following sizes
char 1 byte
short 2 bytes
int 4 bytes
long 8 bytes
long long 8 bytes
pointer 8 bytes
float 4 bytes
double 8 bytes
long double 16 bytes
size_t 8 bytes
ptrdiff_t 8 bytes
wchar 4 bytes
Make GCC agree with types.h. */
#undef SIZE_TYPE
#define SIZE_TYPE "long unsigned int"
#undef PTRDIFF_TYPE
#define PTRDIFF_TYPE "long int"
#undef WCHAR_TYPE
#define WCHAR_TYPE "unsigned int"
#undef WCHAR_TYPE_SIZE
#define WCHAR_TYPE_SIZE 32
/* If it is not listed here, then the default selected by GCC is OK. */
#undef SHORT_TYPE_SIZE
#define SHORT_TYPE_SIZE 16
#undef INT_TYPE_SIZE
#define INT_TYPE_SIZE 32
#undef LONG_TYPE_SIZE
#define LONG_TYPE_SIZE 64
#undef LONG_LONG_TYPE_SIZE
#define LONG_LONG_TYPE_SIZE 64
#undef FLOAT_TYPE_SIZE
#define FLOAT_TYPE_SIZE 32
#undef DOUBLE_TYPE_SIZE
#define DOUBLE_TYPE_SIZE 64
#undef LONG_DOUBLE_TYPE_SIZE
#define LONG_DOUBLE_TYPE_SIZE 128
/* Temporary until we figure out what to do with those *(&@$ 32bit
relocs which appear in stabs. */
#undef DBX_DEBUGGING_INFO
/* ?!? This needs to be made compile-time selectable.
The PA64 runtime model has arguments that grow to higher addresses
(like most other targets). The older runtime model has arguments
that grow to lower addresses. What fun. */
#undef ARGS_GROW_DOWNWARD
/* If defined, a C expression which determines whether the default
implementation of va_arg will attempt to pad down before reading the
next argument, if that argument is smaller than its aligned space as
controlled by PARM_BOUNDARY. If this macro is not defined, all such
arguments are padded down when BYTES_BIG_ENDIAN is true. We don't
want aggregates padded down. */
#define PAD_VARARGS_DOWN \
(!AGGREGATE_TYPE_P (type) \
&& TREE_CODE (type) != COMPLEX_TYPE \
&& TREE_CODE (type) != VECTOR_TYPE)
/* In the PA architecture, it is not possible to directly move data
between GENERAL_REGS and FP_REGS. On the 32-bit port, we use the
location at SP-16 because PA 1.X only supports 5-bit immediates for
floating-point loads and stores. We don't expose this location in
the RTL to avoid scheduling related problems. For example, the
store and load could be separated by a call to a pure or const
function which has no frame and this function might also use SP-16.
We have 14-bit immediates on the 64-bit port, so we use secondary
memory for the copies. */
#define PA_SECONDARY_MEMORY_NEEDED(MODE, CLASS1, CLASS2) \
(MAYBE_FP_REG_CLASS_P (CLASS1) != FP_REG_CLASS_P (CLASS2) \
|| MAYBE_FP_REG_CLASS_P (CLASS2) != FP_REG_CLASS_P (CLASS1))
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