902 lines
32 KiB
C++
902 lines
32 KiB
C++
/* Definitions of target machine for GNU compiler.
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Matsushita MN10300 series
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Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
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2007, 2008, 2009, 2010 Free Software Foundation, Inc.
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Contributed by Jeff Law (law@cygnus.com).
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3, or (at your option)
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any later version.
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GCC is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GCC; see the file COPYING3. If not see
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<http://www.gnu.org/licenses/>. */
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#undef ASM_SPEC
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#undef LIB_SPEC
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#undef ENDFILE_SPEC
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#undef LINK_SPEC
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#define LINK_SPEC "%{mrelax:--relax}"
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#undef STARTFILE_SPEC
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#define STARTFILE_SPEC "%{!mno-crt0:%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}}"
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/* Names to predefine in the preprocessor for this target machine. */
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#define TARGET_CPU_CPP_BUILTINS() \
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do \
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{ \
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builtin_define ("__mn10300__"); \
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builtin_define ("__MN10300__"); \
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builtin_assert ("cpu=mn10300"); \
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builtin_assert ("machine=mn10300"); \
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} \
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while (0)
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#define CPP_SPEC "%{mam33:-D__AM33__} %{mam33-2:-D__AM33__=2 -D__AM33_2__}"
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extern GTY(()) int mn10300_unspec_int_label_counter;
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enum processor_type {
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PROCESSOR_MN10300,
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PROCESSOR_AM33,
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PROCESSOR_AM33_2
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};
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extern enum processor_type mn10300_processor;
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#define TARGET_AM33 (mn10300_processor >= PROCESSOR_AM33)
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#define TARGET_AM33_2 (mn10300_processor == PROCESSOR_AM33_2)
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#ifndef PROCESSOR_DEFAULT
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#define PROCESSOR_DEFAULT PROCESSOR_MN10300
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#endif
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#define OVERRIDE_OPTIONS mn10300_override_options ()
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/* Print subsidiary information on the compiler version in use. */
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#define TARGET_VERSION fprintf (stderr, " (MN10300)");
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/* Target machine storage layout */
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/* Define this if most significant bit is lowest numbered
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in instructions that operate on numbered bit-fields.
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This is not true on the Matsushita MN1003. */
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#define BITS_BIG_ENDIAN 0
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/* Define this if most significant byte of a word is the lowest numbered. */
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/* This is not true on the Matsushita MN10300. */
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#define BYTES_BIG_ENDIAN 0
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/* Define this if most significant word of a multiword number is lowest
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numbered.
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This is not true on the Matsushita MN10300. */
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#define WORDS_BIG_ENDIAN 0
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/* Width of a word, in units (bytes). */
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#define UNITS_PER_WORD 4
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/* Allocation boundary (in *bits*) for storing arguments in argument list. */
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#define PARM_BOUNDARY 32
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/* The stack goes in 32-bit lumps. */
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#define STACK_BOUNDARY 32
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/* Allocation boundary (in *bits*) for the code of a function.
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8 is the minimum boundary; it's unclear if bigger alignments
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would improve performance. */
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#define FUNCTION_BOUNDARY 8
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/* No data type wants to be aligned rounder than this. */
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#define BIGGEST_ALIGNMENT 32
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/* Alignment of field after `int : 0' in a structure. */
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#define EMPTY_FIELD_BOUNDARY 32
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/* Define this if move instructions will actually fail to work
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when given unaligned data. */
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#define STRICT_ALIGNMENT 1
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/* Define this as 1 if `char' should by default be signed; else as 0. */
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#define DEFAULT_SIGNED_CHAR 0
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/* Standard register usage. */
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/* Number of actual hardware registers.
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The hardware registers are assigned numbers for the compiler
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from 0 to just below FIRST_PSEUDO_REGISTER.
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All registers that the compiler knows about must be given numbers,
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even those that are not normally considered general registers. */
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#define FIRST_PSEUDO_REGISTER 50
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/* Specify machine-specific register numbers. */
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#define FIRST_DATA_REGNUM 0
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#define LAST_DATA_REGNUM 3
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#define FIRST_ADDRESS_REGNUM 4
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#define LAST_ADDRESS_REGNUM 8
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#define FIRST_EXTENDED_REGNUM 10
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#define LAST_EXTENDED_REGNUM 17
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#define FIRST_FP_REGNUM 18
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#define LAST_FP_REGNUM 49
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#define FIRST_ARGUMENT_REGNUM 0
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/* Specify the registers used for certain standard purposes.
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The values of these macros are register numbers. */
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/* Register to use for pushing function arguments. */
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#define STACK_POINTER_REGNUM (LAST_ADDRESS_REGNUM+1)
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/* Base register for access to local variables of the function. */
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#define FRAME_POINTER_REGNUM (LAST_ADDRESS_REGNUM-1)
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/* Base register for access to arguments of the function. This
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is a fake register and will be eliminated into either the frame
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pointer or stack pointer. */
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#define ARG_POINTER_REGNUM LAST_ADDRESS_REGNUM
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/* Register in which static-chain is passed to a function. */
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#define STATIC_CHAIN_REGNUM (FIRST_ADDRESS_REGNUM+1)
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/* 1 for registers that have pervasive standard uses
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and are not available for the register allocator. */
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#define FIXED_REGISTERS \
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{ 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0 \
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, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 \
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, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 \
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}
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/* 1 for registers not available across function calls.
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These must include the FIXED_REGISTERS and also any
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registers that can be used without being saved.
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The latter must include the registers where values are returned
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and the register where structure-value addresses are passed.
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Aside from that, you can include as many other registers as you
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like. */
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#define CALL_USED_REGISTERS \
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{ 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0 \
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, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 \
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, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 \
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}
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/* Note: The definition of CALL_REALLY_USED_REGISTERS is not
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redundant. It is needed when compiling in PIC mode because
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the a2 register becomes fixed (and hence must be marked as
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call_used) but in order to preserve the ABI it is not marked
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as call_really_used. */
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#define CALL_REALLY_USED_REGISTERS CALL_USED_REGISTERS
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#define REG_ALLOC_ORDER \
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{ 0, 1, 4, 5, 2, 3, 6, 7, 10, 11, 12, 13, 14, 15, 16, 17, 8, 9 \
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, 42, 43, 44, 45, 46, 47, 48, 49, 34, 35, 36, 37, 38, 39, 40, 41 \
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, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33 \
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}
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#define CONDITIONAL_REGISTER_USAGE \
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{ \
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unsigned int i; \
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\
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if (!TARGET_AM33) \
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{ \
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for (i = FIRST_EXTENDED_REGNUM; \
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i <= LAST_EXTENDED_REGNUM; i++) \
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fixed_regs[i] = call_used_regs[i] = 1; \
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} \
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if (!TARGET_AM33_2) \
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{ \
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for (i = FIRST_FP_REGNUM; \
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i <= LAST_FP_REGNUM; \
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i++) \
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fixed_regs[i] = call_used_regs[i] = 1; \
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} \
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if (flag_pic) \
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fixed_regs[PIC_OFFSET_TABLE_REGNUM] = \
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call_used_regs[PIC_OFFSET_TABLE_REGNUM] = 1;\
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}
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/* Return number of consecutive hard regs needed starting at reg REGNO
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to hold something of mode MODE.
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This is ordinarily the length in words of a value of mode MODE
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but can be less for certain modes in special long registers. */
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#define HARD_REGNO_NREGS(REGNO, MODE) \
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((GET_MODE_SIZE (MODE) + UNITS_PER_WORD - 1) / UNITS_PER_WORD)
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/* Value is 1 if hard register REGNO can hold a value of machine-mode
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MODE. */
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#define HARD_REGNO_MODE_OK(REGNO, MODE) \
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((REGNO_REG_CLASS (REGNO) == DATA_REGS \
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|| (TARGET_AM33 && REGNO_REG_CLASS (REGNO) == ADDRESS_REGS) \
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|| REGNO_REG_CLASS (REGNO) == EXTENDED_REGS) \
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? ((REGNO) & 1) == 0 || GET_MODE_SIZE (MODE) <= 4 \
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: ((REGNO) & 1) == 0 || GET_MODE_SIZE (MODE) == 4)
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/* Value is 1 if it is a good idea to tie two pseudo registers
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when one has mode MODE1 and one has mode MODE2.
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If HARD_REGNO_MODE_OK could produce different values for MODE1 and MODE2,
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for any hard reg, then this must be 0 for correct output. */
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#define MODES_TIEABLE_P(MODE1, MODE2) \
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(TARGET_AM33 \
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|| MODE1 == MODE2 \
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|| (GET_MODE_SIZE (MODE1) <= 4 && GET_MODE_SIZE (MODE2) <= 4))
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/* 4 data, and effectively 3 address registers is small as far as I'm
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concerned. */
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#define TARGET_SMALL_REGISTER_CLASSES_FOR_MODE_P hook_bool_mode_true
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/* Define the classes of registers for register constraints in the
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machine description. Also define ranges of constants.
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One of the classes must always be named ALL_REGS and include all hard regs.
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If there is more than one class, another class must be named NO_REGS
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and contain no registers.
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The name GENERAL_REGS must be the name of a class (or an alias for
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another name such as ALL_REGS). This is the class of registers
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that is allowed by "g" or "r" in a register constraint.
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Also, registers outside this class are allocated only when
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instructions express preferences for them.
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The classes must be numbered in nondecreasing order; that is,
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a larger-numbered class must never be contained completely
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in a smaller-numbered class.
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For any two classes, it is very desirable that there be another
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class that represents their union. */
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enum reg_class {
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NO_REGS, DATA_REGS, ADDRESS_REGS, SP_REGS,
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DATA_OR_ADDRESS_REGS, SP_OR_ADDRESS_REGS,
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EXTENDED_REGS, DATA_OR_EXTENDED_REGS, ADDRESS_OR_EXTENDED_REGS,
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SP_OR_EXTENDED_REGS, SP_OR_ADDRESS_OR_EXTENDED_REGS,
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FP_REGS, FP_ACC_REGS,
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GENERAL_REGS, ALL_REGS, LIM_REG_CLASSES
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};
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#define N_REG_CLASSES (int) LIM_REG_CLASSES
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/* Give names of register classes as strings for dump file. */
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#define REG_CLASS_NAMES \
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{ "NO_REGS", "DATA_REGS", "ADDRESS_REGS", \
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"SP_REGS", "DATA_OR_ADDRESS_REGS", "SP_OR_ADDRESS_REGS", \
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"EXTENDED_REGS", \
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"DATA_OR_EXTENDED_REGS", "ADDRESS_OR_EXTENDED_REGS", \
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"SP_OR_EXTENDED_REGS", "SP_OR_ADDRESS_OR_EXTENDED_REGS", \
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"FP_REGS", "FP_ACC_REGS", \
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"GENERAL_REGS", "ALL_REGS", "LIM_REGS" }
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/* Define which registers fit in which classes.
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This is an initializer for a vector of HARD_REG_SET
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of length N_REG_CLASSES. */
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#define REG_CLASS_CONTENTS \
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{ { 0, 0 }, /* No regs */ \
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{ 0x0000f, 0 }, /* DATA_REGS */ \
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{ 0x001f0, 0 }, /* ADDRESS_REGS */ \
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{ 0x00200, 0 }, /* SP_REGS */ \
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{ 0x001ff, 0 }, /* DATA_OR_ADDRESS_REGS */\
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{ 0x003f0, 0 }, /* SP_OR_ADDRESS_REGS */\
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{ 0x3fc00, 0 }, /* EXTENDED_REGS */ \
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{ 0x3fc0f, 0 }, /* DATA_OR_EXTENDED_REGS */ \
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{ 0x3fdf0, 0 }, /* ADDRESS_OR_EXTENDED_REGS */ \
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{ 0x3fe00, 0 }, /* SP_OR_EXTENDED_REGS */ \
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{ 0x3fff0, 0 }, /* SP_OR_ADDRESS_OR_EXTENDED_REGS */ \
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{ 0xfffc0000, 0x3ffff }, /* FP_REGS */ \
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{ 0x03fc0000, 0 }, /* FP_ACC_REGS */ \
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{ 0x3fdff, 0 }, /* GENERAL_REGS */ \
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{ 0xffffffff, 0x3ffff } /* ALL_REGS */ \
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}
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/* The following macro defines cover classes for Integrated Register
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Allocator. Cover classes is a set of non-intersected register
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classes covering all hard registers used for register allocation
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purpose. Any move between two registers of a cover class should be
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cheaper than load or store of the registers. The macro value is
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array of register classes with LIM_REG_CLASSES used as the end
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marker. */
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#define IRA_COVER_CLASSES \
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{ \
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GENERAL_REGS, FP_REGS, LIM_REG_CLASSES \
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}
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/* The same information, inverted:
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Return the class number of the smallest class containing
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reg number REGNO. This could be a conditional expression
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or could index an array. */
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#define REGNO_REG_CLASS(REGNO) \
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((REGNO) <= LAST_DATA_REGNUM ? DATA_REGS : \
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(REGNO) <= LAST_ADDRESS_REGNUM ? ADDRESS_REGS : \
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(REGNO) == STACK_POINTER_REGNUM ? SP_REGS : \
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(REGNO) <= LAST_EXTENDED_REGNUM ? EXTENDED_REGS : \
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(REGNO) <= LAST_FP_REGNUM ? FP_REGS : \
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NO_REGS)
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/* The class value for index registers, and the one for base regs. */
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#define INDEX_REG_CLASS DATA_OR_EXTENDED_REGS
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#define BASE_REG_CLASS SP_OR_ADDRESS_REGS
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/* Macros to check register numbers against specific register classes. */
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/* The macros REG_OK_FOR..._P assume that the arg is a REG rtx
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and check its validity for a certain class.
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We have two alternate definitions for each of them.
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The usual definition accepts all pseudo regs; the other rejects
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them unless they have been allocated suitable hard regs.
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The symbol REG_OK_STRICT causes the latter definition to be used.
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Most source files want to accept pseudo regs in the hope that
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they will get allocated to the class that the insn wants them to be in.
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Source files for reload pass need to be strict.
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After reload, it makes no difference, since pseudo regs have
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been eliminated by then. */
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/* These assume that REGNO is a hard or pseudo reg number.
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They give nonzero only if REGNO is a hard reg of the suitable class
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or a pseudo reg currently allocated to a suitable hard reg.
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Since they use reg_renumber, they are safe only once reg_renumber
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has been allocated, which happens in local-alloc.c. */
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#ifndef REG_OK_STRICT
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# define REG_STRICT 0
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#else
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# define REG_STRICT 1
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#endif
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# define REGNO_IN_RANGE_P(regno,min,max,strict) \
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(IN_RANGE ((regno), (min), (max)) \
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|| ((strict) \
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? (reg_renumber \
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&& reg_renumber[(regno)] >= (min) \
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&& reg_renumber[(regno)] <= (max)) \
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: (regno) >= FIRST_PSEUDO_REGISTER))
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#define REGNO_DATA_P(regno, strict) \
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(REGNO_IN_RANGE_P ((regno), FIRST_DATA_REGNUM, LAST_DATA_REGNUM, \
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(strict)))
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#define REGNO_ADDRESS_P(regno, strict) \
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(REGNO_IN_RANGE_P ((regno), FIRST_ADDRESS_REGNUM, LAST_ADDRESS_REGNUM, \
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(strict)))
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#define REGNO_SP_P(regno, strict) \
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(REGNO_IN_RANGE_P ((regno), STACK_POINTER_REGNUM, STACK_POINTER_REGNUM, \
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(strict)))
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#define REGNO_EXTENDED_P(regno, strict) \
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(REGNO_IN_RANGE_P ((regno), FIRST_EXTENDED_REGNUM, LAST_EXTENDED_REGNUM, \
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(strict)))
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#define REGNO_AM33_P(regno, strict) \
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(REGNO_DATA_P ((regno), (strict)) || REGNO_ADDRESS_P ((regno), (strict)) \
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|| REGNO_EXTENDED_P ((regno), (strict)))
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#define REGNO_FP_P(regno, strict) \
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(REGNO_IN_RANGE_P ((regno), FIRST_FP_REGNUM, LAST_FP_REGNUM, (strict)))
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#define REGNO_STRICT_OK_FOR_BASE_P(regno, strict) \
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(REGNO_SP_P ((regno), (strict)) \
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|| REGNO_ADDRESS_P ((regno), (strict)) \
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|| REGNO_EXTENDED_P ((regno), (strict)))
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#define REGNO_OK_FOR_BASE_P(regno) \
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(REGNO_STRICT_OK_FOR_BASE_P ((regno), REG_STRICT))
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#define REG_OK_FOR_BASE_P(X) \
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(REGNO_OK_FOR_BASE_P (REGNO (X)))
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#define REGNO_STRICT_OK_FOR_BIT_BASE_P(regno, strict) \
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(REGNO_SP_P ((regno), (strict)) || REGNO_ADDRESS_P ((regno), (strict)))
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#define REGNO_OK_FOR_BIT_BASE_P(regno) \
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(REGNO_STRICT_OK_FOR_BIT_BASE_P ((regno), REG_STRICT))
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#define REG_OK_FOR_BIT_BASE_P(X) \
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(REGNO_OK_FOR_BIT_BASE_P (REGNO (X)))
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#define REGNO_STRICT_OK_FOR_INDEX_P(regno, strict) \
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(REGNO_DATA_P ((regno), (strict)) || REGNO_EXTENDED_P ((regno), (strict)))
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#define REGNO_OK_FOR_INDEX_P(regno) \
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(REGNO_STRICT_OK_FOR_INDEX_P ((regno), REG_STRICT))
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#define REG_OK_FOR_INDEX_P(X) \
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(REGNO_OK_FOR_INDEX_P (REGNO (X)))
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/* Given an rtx X being reloaded into a reg required to be
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in class CLASS, return the class of reg to actually use.
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In general this is just CLASS; but on some machines
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in some cases it is preferable to use a more restrictive class. */
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#define PREFERRED_RELOAD_CLASS(X,CLASS) \
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((X) == stack_pointer_rtx && (CLASS) != SP_REGS \
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? ADDRESS_OR_EXTENDED_REGS \
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: (GET_CODE (X) == MEM \
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|| (GET_CODE (X) == REG \
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&& REGNO (X) >= FIRST_PSEUDO_REGISTER) \
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|| (GET_CODE (X) == SUBREG \
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&& GET_CODE (SUBREG_REG (X)) == REG \
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&& REGNO (SUBREG_REG (X)) >= FIRST_PSEUDO_REGISTER) \
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? LIMIT_RELOAD_CLASS (GET_MODE (X), CLASS) \
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: (CLASS)))
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#define PREFERRED_OUTPUT_RELOAD_CLASS(X,CLASS) \
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(X == stack_pointer_rtx && CLASS != SP_REGS \
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? ADDRESS_OR_EXTENDED_REGS : CLASS)
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|
||
#define LIMIT_RELOAD_CLASS(MODE, CLASS) \
|
||
(!TARGET_AM33 && (MODE == QImode || MODE == HImode) ? DATA_REGS : CLASS)
|
||
|
||
#define SECONDARY_RELOAD_CLASS(CLASS,MODE,IN) \
|
||
mn10300_secondary_reload_class(CLASS,MODE,IN)
|
||
|
||
/* Return the maximum number of consecutive registers
|
||
needed to represent mode MODE in a register of class CLASS. */
|
||
|
||
#define CLASS_MAX_NREGS(CLASS, MODE) \
|
||
((GET_MODE_SIZE (MODE) + UNITS_PER_WORD - 1) / UNITS_PER_WORD)
|
||
|
||
/* A class that contains registers which the compiler must always
|
||
access in a mode that is the same size as the mode in which it
|
||
loaded the register. */
|
||
#define CLASS_CANNOT_CHANGE_SIZE FP_REGS
|
||
|
||
/* Return 1 if VALUE is in the range specified. */
|
||
|
||
#define INT_8_BITS(VALUE) ((unsigned) (VALUE) + 0x80 < 0x100)
|
||
#define INT_16_BITS(VALUE) ((unsigned) (VALUE) + 0x8000 < 0x10000)
|
||
|
||
|
||
/* Stack layout; function entry, exit and calling. */
|
||
|
||
/* Define this if pushing a word on the stack
|
||
makes the stack pointer a smaller address. */
|
||
|
||
#define STACK_GROWS_DOWNWARD
|
||
|
||
/* Define this to nonzero if the nominal address of the stack frame
|
||
is at the high-address end of the local variables;
|
||
that is, each additional local variable allocated
|
||
goes at a more negative offset in the frame. */
|
||
|
||
#define FRAME_GROWS_DOWNWARD 1
|
||
|
||
/* Offset within stack frame to start allocating local variables at.
|
||
If FRAME_GROWS_DOWNWARD, this is the offset to the END of the
|
||
first local allocated. Otherwise, it is the offset to the BEGINNING
|
||
of the first local allocated. */
|
||
|
||
#define STARTING_FRAME_OFFSET 0
|
||
|
||
/* Offset of first parameter from the argument pointer register value. */
|
||
/* Is equal to the size of the saved fp + pc, even if an fp isn't
|
||
saved since the value is used before we know. */
|
||
|
||
#define FIRST_PARM_OFFSET(FNDECL) 4
|
||
|
||
#define ELIMINABLE_REGS \
|
||
{{ ARG_POINTER_REGNUM, STACK_POINTER_REGNUM}, \
|
||
{ ARG_POINTER_REGNUM, FRAME_POINTER_REGNUM}, \
|
||
{ FRAME_POINTER_REGNUM, STACK_POINTER_REGNUM}}
|
||
|
||
#define INITIAL_ELIMINATION_OFFSET(FROM, TO, OFFSET) \
|
||
OFFSET = initial_offset (FROM, TO)
|
||
|
||
/* We can debug without frame pointers on the mn10300, so eliminate
|
||
them whenever possible. */
|
||
#define CAN_DEBUG_WITHOUT_FP
|
||
|
||
/* Value is the number of bytes of arguments automatically
|
||
popped when returning from a subroutine call.
|
||
FUNDECL is the declaration node of the function (as a tree),
|
||
FUNTYPE is the data type of the function (as a tree),
|
||
or for a library call it is an identifier node for the subroutine name.
|
||
SIZE is the number of bytes of arguments passed on the stack. */
|
||
|
||
#define RETURN_POPS_ARGS(FUNDECL,FUNTYPE,SIZE) 0
|
||
|
||
/* We use d0/d1 for passing parameters, so allocate 8 bytes of space
|
||
for a register flushback area. */
|
||
#define REG_PARM_STACK_SPACE(DECL) 8
|
||
#define OUTGOING_REG_PARM_STACK_SPACE(FNTYPE) 1
|
||
#define ACCUMULATE_OUTGOING_ARGS 1
|
||
|
||
/* So we can allocate space for return pointers once for the function
|
||
instead of around every call. */
|
||
#define STACK_POINTER_OFFSET 4
|
||
|
||
/* 1 if N is a possible register number for function argument passing.
|
||
On the MN10300, d0 and d1 are used in this way. */
|
||
|
||
#define FUNCTION_ARG_REGNO_P(N) ((N) <= 1)
|
||
|
||
|
||
/* Define a data type for recording info about an argument list
|
||
during the scan of that argument list. This data type should
|
||
hold all necessary information about the function itself
|
||
and about the args processed so far, enough to enable macros
|
||
such as FUNCTION_ARG to determine where the next arg should go.
|
||
|
||
On the MN10300, this is a single integer, which is a number of bytes
|
||
of arguments scanned so far. */
|
||
|
||
#define CUMULATIVE_ARGS struct cum_arg
|
||
struct cum_arg {int nbytes; };
|
||
|
||
/* Initialize a variable CUM of type CUMULATIVE_ARGS
|
||
for a call to a function whose data type is FNTYPE.
|
||
For a library call, FNTYPE is 0.
|
||
|
||
On the MN10300, the offset starts at 0. */
|
||
|
||
#define INIT_CUMULATIVE_ARGS(CUM, FNTYPE, LIBNAME, INDIRECT, N_NAMED_ARGS) \
|
||
((CUM).nbytes = 0)
|
||
|
||
/* Update the data in CUM to advance over an argument
|
||
of mode MODE and data type TYPE.
|
||
(TYPE is null for libcalls where that information may not be available.) */
|
||
|
||
#define FUNCTION_ARG_ADVANCE(CUM, MODE, TYPE, NAMED) \
|
||
((CUM).nbytes += ((MODE) != BLKmode \
|
||
? (GET_MODE_SIZE (MODE) + 3) & ~3 \
|
||
: (int_size_in_bytes (TYPE) + 3) & ~3))
|
||
|
||
/* Define where to put the arguments to a function.
|
||
Value is zero to push the argument on the stack,
|
||
or a hard register in which to store the argument.
|
||
|
||
MODE is the argument's machine mode.
|
||
TYPE is the data type of the argument (as a tree).
|
||
This is null for libcalls where that information may
|
||
not be available.
|
||
CUM is a variable of type CUMULATIVE_ARGS which gives info about
|
||
the preceding args and about the function being called.
|
||
NAMED is nonzero if this argument is a named parameter
|
||
(otherwise it is an extra parameter matching an ellipsis). */
|
||
|
||
#define FUNCTION_ARG(CUM, MODE, TYPE, NAMED) \
|
||
function_arg (&CUM, MODE, TYPE, NAMED)
|
||
|
||
#define FUNCTION_VALUE_REGNO_P(N) mn10300_function_value_regno_p (N)
|
||
|
||
#define DEFAULT_PCC_STRUCT_RETURN 0
|
||
|
||
/* EXIT_IGNORE_STACK should be nonzero if, when returning from a function,
|
||
the stack pointer does not matter. The value is tested only in
|
||
functions that have frame pointers.
|
||
No definition is equivalent to always zero. */
|
||
|
||
#define EXIT_IGNORE_STACK 1
|
||
|
||
/* Output assembler code to FILE to increment profiler label # LABELNO
|
||
for profiling a function entry. */
|
||
|
||
#define FUNCTION_PROFILER(FILE, LABELNO) ;
|
||
|
||
/* Length in units of the trampoline for entering a nested function. */
|
||
|
||
#define TRAMPOLINE_SIZE 0x1b
|
||
|
||
#define TRAMPOLINE_ALIGNMENT 32
|
||
|
||
/* A C expression whose value is RTL representing the value of the return
|
||
address for the frame COUNT steps up from the current frame.
|
||
|
||
On the mn10300, the return address is not at a constant location
|
||
due to the frame layout. Luckily, it is at a constant offset from
|
||
the argument pointer, so we define RETURN_ADDR_RTX to return a
|
||
MEM using arg_pointer_rtx. Reload will replace arg_pointer_rtx
|
||
with a reference to the stack/frame pointer + an appropriate offset. */
|
||
|
||
#define RETURN_ADDR_RTX(COUNT, FRAME) \
|
||
((COUNT == 0) \
|
||
? gen_rtx_MEM (Pmode, arg_pointer_rtx) \
|
||
: (rtx) 0)
|
||
|
||
/* Maximum number of registers that can appear in a valid memory address. */
|
||
|
||
#define MAX_REGS_PER_ADDRESS 2
|
||
|
||
|
||
#define HAVE_POST_INCREMENT (TARGET_AM33)
|
||
|
||
/* Accept either REG or SUBREG where a register is valid. */
|
||
|
||
#define RTX_OK_FOR_BASE_P(X, strict) \
|
||
((REG_P (X) && REGNO_STRICT_OK_FOR_BASE_P (REGNO (X), \
|
||
(strict))) \
|
||
|| (GET_CODE (X) == SUBREG && REG_P (SUBREG_REG (X)) \
|
||
&& REGNO_STRICT_OK_FOR_BASE_P (REGNO (SUBREG_REG (X)), \
|
||
(strict))))
|
||
|
||
|
||
|
||
/* Nonzero if the constant value X is a legitimate general operand.
|
||
It is given that X satisfies CONSTANT_P or is a CONST_DOUBLE. */
|
||
|
||
#define LEGITIMATE_CONSTANT_P(X) 1
|
||
|
||
/* Zero if this needs fixing up to become PIC. */
|
||
|
||
#define LEGITIMATE_PIC_OPERAND_P(X) (legitimate_pic_operand_p (X))
|
||
|
||
/* Register to hold the addressing base for
|
||
position independent code access to data items. */
|
||
#define PIC_OFFSET_TABLE_REGNUM PIC_REG
|
||
|
||
/* The name of the pseudo-symbol representing the Global Offset Table. */
|
||
#define GOT_SYMBOL_NAME "*_GLOBAL_OFFSET_TABLE_"
|
||
|
||
#define SYMBOLIC_CONST_P(X) \
|
||
((GET_CODE (X) == SYMBOL_REF || GET_CODE (X) == LABEL_REF) \
|
||
&& ! LEGITIMATE_PIC_OPERAND_P (X))
|
||
|
||
/* Non-global SYMBOL_REFs have SYMBOL_REF_FLAG enabled. */
|
||
#define MN10300_GLOBAL_P(X) (! SYMBOL_REF_FLAG (X))
|
||
|
||
/* Recognize machine-specific patterns that may appear within
|
||
constants. Used for PIC-specific UNSPECs. */
|
||
#define OUTPUT_ADDR_CONST_EXTRA(STREAM, X, FAIL) \
|
||
do \
|
||
if (GET_CODE (X) == UNSPEC) \
|
||
{ \
|
||
switch (XINT ((X), 1)) \
|
||
{ \
|
||
case UNSPEC_INT_LABEL: \
|
||
asm_fprintf ((STREAM), ".%LLIL" HOST_WIDE_INT_PRINT_DEC, \
|
||
INTVAL (XVECEXP ((X), 0, 0))); \
|
||
break; \
|
||
case UNSPEC_PIC: \
|
||
/* GLOBAL_OFFSET_TABLE or local symbols, no suffix. */ \
|
||
output_addr_const ((STREAM), XVECEXP ((X), 0, 0)); \
|
||
break; \
|
||
case UNSPEC_GOT: \
|
||
output_addr_const ((STREAM), XVECEXP ((X), 0, 0)); \
|
||
fputs ("@GOT", (STREAM)); \
|
||
break; \
|
||
case UNSPEC_GOTOFF: \
|
||
output_addr_const ((STREAM), XVECEXP ((X), 0, 0)); \
|
||
fputs ("@GOTOFF", (STREAM)); \
|
||
break; \
|
||
case UNSPEC_PLT: \
|
||
output_addr_const ((STREAM), XVECEXP ((X), 0, 0)); \
|
||
fputs ("@PLT", (STREAM)); \
|
||
break; \
|
||
case UNSPEC_GOTSYM_OFF: \
|
||
assemble_name (STREAM, GOT_SYMBOL_NAME); \
|
||
fputs ("-(", STREAM); \
|
||
output_addr_const (STREAM, XVECEXP (X, 0, 0)); \
|
||
fputs ("-.)", STREAM); \
|
||
break; \
|
||
default: \
|
||
goto FAIL; \
|
||
} \
|
||
break; \
|
||
} \
|
||
else \
|
||
goto FAIL; \
|
||
while (0)
|
||
|
||
/* Tell final.c how to eliminate redundant test instructions. */
|
||
|
||
/* Here we define machine-dependent flags and fields in cc_status
|
||
(see `conditions.h'). No extra ones are needed for the VAX. */
|
||
|
||
/* Store in cc_status the expressions
|
||
that the condition codes will describe
|
||
after execution of an instruction whose pattern is EXP.
|
||
Do not alter them if the instruction would not alter the cc's. */
|
||
|
||
#define CC_OVERFLOW_UNUSABLE 0x200
|
||
#define CC_NO_CARRY CC_NO_OVERFLOW
|
||
#define NOTICE_UPDATE_CC(EXP, INSN) notice_update_cc(EXP, INSN)
|
||
|
||
#define REGISTER_MOVE_COST(MODE, CLASS1, CLASS2) \
|
||
((CLASS1 == CLASS2 && (CLASS1 == ADDRESS_REGS || CLASS1 == DATA_REGS)) ? 2 :\
|
||
((CLASS1 == ADDRESS_REGS || CLASS1 == DATA_REGS) && \
|
||
(CLASS2 == ADDRESS_REGS || CLASS2 == DATA_REGS)) ? 4 : \
|
||
(CLASS1 == SP_REGS && CLASS2 == ADDRESS_REGS) ? 2 : \
|
||
(CLASS1 == ADDRESS_REGS && CLASS2 == SP_REGS) ? 4 : \
|
||
! TARGET_AM33 ? 6 : \
|
||
(CLASS1 == SP_REGS || CLASS2 == SP_REGS) ? 6 : \
|
||
(CLASS1 == CLASS2 && CLASS1 == EXTENDED_REGS) ? 6 : \
|
||
(CLASS1 == FP_REGS || CLASS2 == FP_REGS) ? 6 : \
|
||
(CLASS1 == EXTENDED_REGS || CLASS2 == EXTENDED_REGS) ? 4 : \
|
||
4)
|
||
|
||
/* Nonzero if access to memory by bytes or half words is no faster
|
||
than accessing full words. */
|
||
#define SLOW_BYTE_ACCESS 1
|
||
|
||
#define NO_FUNCTION_CSE
|
||
|
||
/* According expr.c, a value of around 6 should minimize code size, and
|
||
for the MN10300 series, that's our primary concern. */
|
||
#define MOVE_RATIO(speed) 6
|
||
|
||
#define TEXT_SECTION_ASM_OP "\t.section .text"
|
||
#define DATA_SECTION_ASM_OP "\t.section .data"
|
||
#define BSS_SECTION_ASM_OP "\t.section .bss"
|
||
|
||
#define ASM_COMMENT_START "#"
|
||
|
||
/* Output to assembler file text saying following lines
|
||
may contain character constants, extra white space, comments, etc. */
|
||
|
||
#define ASM_APP_ON "#APP\n"
|
||
|
||
/* Output to assembler file text saying following lines
|
||
no longer contain unusual constructs. */
|
||
|
||
#define ASM_APP_OFF "#NO_APP\n"
|
||
|
||
#undef USER_LABEL_PREFIX
|
||
#define USER_LABEL_PREFIX "_"
|
||
|
||
/* This says how to output the assembler to define a global
|
||
uninitialized but not common symbol.
|
||
Try to use asm_output_bss to implement this macro. */
|
||
|
||
#define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \
|
||
asm_output_aligned_bss ((FILE), (DECL), (NAME), (SIZE), (ALIGN))
|
||
|
||
/* Globalizing directive for a label. */
|
||
#define GLOBAL_ASM_OP "\t.global "
|
||
|
||
/* This is how to output a reference to a user-level label named NAME.
|
||
`assemble_name' uses this. */
|
||
|
||
#undef ASM_OUTPUT_LABELREF
|
||
#define ASM_OUTPUT_LABELREF(FILE, NAME) \
|
||
asm_fprintf (FILE, "%U%s", (*targetm.strip_name_encoding) (NAME))
|
||
|
||
#define ASM_PN_FORMAT "%s___%lu"
|
||
|
||
/* This is how we tell the assembler that two symbols have the same value. */
|
||
|
||
#define ASM_OUTPUT_DEF(FILE,NAME1,NAME2) \
|
||
do { assemble_name(FILE, NAME1); \
|
||
fputs(" = ", FILE); \
|
||
assemble_name(FILE, NAME2); \
|
||
fputc('\n', FILE); } while (0)
|
||
|
||
|
||
/* How to refer to registers in assembler output.
|
||
This sequence is indexed by compiler's hard-register-number (see above). */
|
||
|
||
#define REGISTER_NAMES \
|
||
{ "d0", "d1", "d2", "d3", "a0", "a1", "a2", "a3", "ap", "sp", \
|
||
"r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7" \
|
||
, "fs0", "fs1", "fs2", "fs3", "fs4", "fs5", "fs6", "fs7" \
|
||
, "fs8", "fs9", "fs10", "fs11", "fs12", "fs13", "fs14", "fs15" \
|
||
, "fs16", "fs17", "fs18", "fs19", "fs20", "fs21", "fs22", "fs23" \
|
||
, "fs24", "fs25", "fs26", "fs27", "fs28", "fs29", "fs30", "fs31" \
|
||
}
|
||
|
||
#define ADDITIONAL_REGISTER_NAMES \
|
||
{ {"r8", 4}, {"r9", 5}, {"r10", 6}, {"r11", 7}, \
|
||
{"r12", 0}, {"r13", 1}, {"r14", 2}, {"r15", 3}, \
|
||
{"e0", 10}, {"e1", 11}, {"e2", 12}, {"e3", 13}, \
|
||
{"e4", 14}, {"e5", 15}, {"e6", 16}, {"e7", 17} \
|
||
, {"fd0", 18}, {"fd2", 20}, {"fd4", 22}, {"fd6", 24} \
|
||
, {"fd8", 26}, {"fd10", 28}, {"fd12", 30}, {"fd14", 32} \
|
||
, {"fd16", 34}, {"fd18", 36}, {"fd20", 38}, {"fd22", 40} \
|
||
, {"fd24", 42}, {"fd26", 44}, {"fd28", 46}, {"fd30", 48} \
|
||
}
|
||
|
||
/* Print an instruction operand X on file FILE.
|
||
look in mn10300.c for details */
|
||
|
||
#define PRINT_OPERAND(FILE, X, CODE) print_operand(FILE,X,CODE)
|
||
|
||
/* Print a memory operand whose address is X, on file FILE.
|
||
This uses a function in output-vax.c. */
|
||
|
||
#define PRINT_OPERAND_ADDRESS(FILE, ADDR) print_operand_address (FILE, ADDR)
|
||
|
||
#define ASM_OUTPUT_REG_PUSH(FILE,REGNO)
|
||
#define ASM_OUTPUT_REG_POP(FILE,REGNO)
|
||
|
||
/* This is how to output an element of a case-vector that is absolute. */
|
||
|
||
#define ASM_OUTPUT_ADDR_VEC_ELT(FILE, VALUE) \
|
||
fprintf (FILE, "\t%s .L%d\n", ".long", VALUE)
|
||
|
||
/* This is how to output an element of a case-vector that is relative. */
|
||
|
||
#define ASM_OUTPUT_ADDR_DIFF_ELT(FILE, BODY, VALUE, REL) \
|
||
fprintf (FILE, "\t%s .L%d-.L%d\n", ".long", VALUE, REL)
|
||
|
||
#define ASM_OUTPUT_ALIGN(FILE,LOG) \
|
||
if ((LOG) != 0) \
|
||
fprintf (FILE, "\t.align %d\n", (LOG))
|
||
|
||
/* We don't have to worry about dbx compatibility for the mn10300. */
|
||
#define DEFAULT_GDB_EXTENSIONS 1
|
||
|
||
/* Use dwarf2 debugging info by default. */
|
||
#undef PREFERRED_DEBUGGING_TYPE
|
||
#define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG
|
||
|
||
#define DWARF2_ASM_LINE_DEBUG_INFO 1
|
||
|
||
/* GDB always assumes the current function's frame begins at the value
|
||
of the stack pointer upon entry to the current function. Accessing
|
||
local variables and parameters passed on the stack is done using the
|
||
base of the frame + an offset provided by GCC.
|
||
|
||
For functions which have frame pointers this method works fine;
|
||
the (frame pointer) == (stack pointer at function entry) and GCC provides
|
||
an offset relative to the frame pointer.
|
||
|
||
This loses for functions without a frame pointer; GCC provides an offset
|
||
which is relative to the stack pointer after adjusting for the function's
|
||
frame size. GDB would prefer the offset to be relative to the value of
|
||
the stack pointer at the function's entry. Yuk! */
|
||
#define DEBUGGER_AUTO_OFFSET(X) \
|
||
((GET_CODE (X) == PLUS ? INTVAL (XEXP (X, 1)) : 0) \
|
||
+ (frame_pointer_needed \
|
||
? 0 : -initial_offset (FRAME_POINTER_REGNUM, STACK_POINTER_REGNUM)))
|
||
|
||
#define DEBUGGER_ARG_OFFSET(OFFSET, X) \
|
||
((GET_CODE (X) == PLUS ? OFFSET : 0) \
|
||
+ (frame_pointer_needed \
|
||
? 0 : -initial_offset (ARG_POINTER_REGNUM, STACK_POINTER_REGNUM)))
|
||
|
||
/* Specify the machine mode that this machine uses
|
||
for the index in the tablejump instruction. */
|
||
#define CASE_VECTOR_MODE Pmode
|
||
|
||
/* Define if operations between registers always perform the operation
|
||
on the full register even if a narrower mode is specified. */
|
||
#define WORD_REGISTER_OPERATIONS
|
||
|
||
#define LOAD_EXTEND_OP(MODE) ZERO_EXTEND
|
||
|
||
/* This flag, if defined, says the same insns that convert to a signed fixnum
|
||
also convert validly to an unsigned one. */
|
||
#define FIXUNS_TRUNC_LIKE_FIX_TRUNC
|
||
|
||
/* Max number of bytes we can move from memory to memory
|
||
in one reasonably fast instruction. */
|
||
#define MOVE_MAX 4
|
||
|
||
/* Define if shifts truncate the shift count
|
||
which implies one can omit a sign-extension or zero-extension
|
||
of a shift count. */
|
||
#define SHIFT_COUNT_TRUNCATED 1
|
||
|
||
/* Value is 1 if truncating an integer of INPREC bits to OUTPREC bits
|
||
is done just by pretending it is already truncated. */
|
||
#define TRULY_NOOP_TRUNCATION(OUTPREC, INPREC) 1
|
||
|
||
/* Specify the machine mode that pointers have.
|
||
After generation of rtl, the compiler makes no further distinction
|
||
between pointers and any other objects of this machine mode. */
|
||
#define Pmode SImode
|
||
|
||
/* A function address in a call instruction
|
||
is a byte address (for indexing purposes)
|
||
so give the MEM rtx a byte's mode. */
|
||
#define FUNCTION_MODE QImode
|
||
|
||
/* The assembler op to get a word. */
|
||
|
||
#define FILE_ASM_OP "\t.file\n"
|
||
|
||
typedef struct mn10300_cc_status_mdep
|
||
{
|
||
int fpCC;
|
||
}
|
||
cc_status_mdep;
|
||
|
||
#define CC_STATUS_MDEP cc_status_mdep
|
||
|
||
#define CC_STATUS_MDEP_INIT (cc_status.mdep.fpCC = 0)
|