/* Definitions of target machine for GNU compiler, for HPs using the
64bit runtime model.
- Copyright (C) 1999, 2000 Free Software Foundation, Inc.
+ Copyright (C) 1999, 2000, 2003, 2004, 2007 Free Software Foundation, Inc.
-This file is part of GNU CC.
+This file is part of GCC.
-GNU CC is free software; you can redistribute it and/or modify
+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 2, or (at your option)
+the Free Software Foundation; either version 3, or (at your option)
any later version.
-GNU CC is distributed in the hope that it will be useful,
+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 GNU CC; see the file COPYING. If not, write to
-the Free Software Foundation, 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA. */
+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.
#define SHORT_TYPE_SIZE 16
#undef INT_TYPE_SIZE
#define INT_TYPE_SIZE 32
-#undef MAX_LONG_TYPE_SIZE
-#define MAX_LONG_TYPE_SIZE 64
#undef LONG_TYPE_SIZE
#define LONG_TYPE_SIZE 64
#undef LONG_LONG_TYPE_SIZE
#define FLOAT_TYPE_SIZE 32
#undef DOUBLE_TYPE_SIZE
#define DOUBLE_TYPE_SIZE 64
-/* This should be 128, but until we work out the ABI for the 128bit
- FP codes supplied by HP we'll keep it at 64 bits. */
#undef LONG_DOUBLE_TYPE_SIZE
-#define LONG_DOUBLE_TYPE_SIZE 64
-#define MAX_WCHAR_TYPE_SIZE 32
+#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
-/* We want the compiler to select a suitable secondary memory location.
- ?!? This may not work reliably. Keep an eye out for problems. */
-#undef SECONDARY_MEMORY_NEEDED_RTX
-
-
/* ?!? 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
-#undef ARG_POINTER_REGNUM
-#define ARG_POINTER_REGNUM 29
-#undef STATIC_CHAIN_REGNUM
-#define STATIC_CHAIN_REGNUM 31
-
-/* Nonzero if we do not know how to pass TYPE solely in registers. */
-#define MUST_PASS_IN_STACK(MODE,TYPE) \
- ((TYPE) != 0 \
- && (TREE_CODE (TYPE_SIZE (TYPE)) != INTEGER_CST \
- || TREE_ADDRESSABLE (TYPE)))
+
+/* 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))
+
+/* 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 SECONDARY_MEMORY_NEEDED(CLASS1, CLASS2, MODE) \
+ (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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