--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/config/moxie/moxie.h	Fri Feb 12 23:39:51 2010 +0900
@@ -0,0 +1,521 @@
+/* Target Definitions for moxie.
+   Copyright (C) 2008, 2009  Free Software Foundation, Inc.
+   Contributed by Anthony Green.
+
+   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/>.  */
+
+#ifndef GCC_MOXIE_H
+#define GCC_MOXIE_H
+
+/* This is defined by svr4.h, which is included prior to this file.
+   However, we should undefine it for moxie-elf, since we don't provide
+   functions like access() and mkdir() in newlib.  This will have to
+   be defined again for a Linux port.  */
+#undef TARGET_POSIX_IO
+
+/* Another C string constant used much like `LINK_SPEC'.  The difference
+   between the two is that `STARTFILE_SPEC' is used at the very beginning of
+   the command given to the linker.
+
+   If this macro is not defined, a default is provided that loads the standard
+   C startup file from the usual place.  See `gcc.c'.
+
+   Defined in svr4.h.  */
+#undef  STARTFILE_SPEC
+#define STARTFILE_SPEC "crt0%O%s crti.o%s crtbegin.o%s"
+
+/* Provide an ENDFILE_SPEC appropriate for svr4.  Here we tack on our own
+   magical crtend.o file (see crtstuff.c) which provides part of the
+   support for getting C++ file-scope static object constructed before
+   entering `main', followed by the normal svr3/svr4 "finalizer" file,
+   which is either `gcrtn.o' or `crtn.o'.  */
+
+#undef  ENDFILE_SPEC
+#define ENDFILE_SPEC "crtend.o%s crtn.o%s"
+
+/* Provide a LIB_SPEC appropriate for svr4.  Here we tack on the default
+   standard C library (unless we are building a shared library) and
+   the simulator BSP code.  */
+
+#undef LIB_SPEC
+#define LIB_SPEC "%{!shared:%{!symbolic:-lc}}"
+
+/* Layout of Source Language Data Types */
+
+#define INT_TYPE_SIZE 32
+#define SHORT_TYPE_SIZE 16
+#define LONG_TYPE_SIZE 32
+#define LONG_LONG_TYPE_SIZE 64
+
+#define FLOAT_TYPE_SIZE 32
+#define DOUBLE_TYPE_SIZE 64
+#define LONG_DOUBLE_TYPE_SIZE 64
+
+#define DEFAULT_SIGNED_CHAR 1
+
+/* Registers...
+
+   $fp  - frame pointer
+   $sp  - stack pointer
+   $r0  - general purpose 32-bit register.
+   $r1  - general purpose 32-bit register.
+   $r2  - general purpose 32-bit register.
+   $r3  - general purpose 32-bit register.
+   $r4  - general purpose 32-bit register.
+   $r5  - general purpose 32-bit register.
+   $r6  - general purpose 32-bit register.
+   $r7  - general purpose 32-bit register.
+   $r8  - general purpose 32-bit register.
+   $r9  - general purpose 32-bit register.
+   $r10 - general purpose 32-bit register.
+   $r11 - general purpose 32-bit register.
+   $r12 - general purpose 32-bit register.
+   $r13 - reserved for execution environment.
+
+   Special Registers...
+
+   $pc - 32-bit program counter.
+   
+*/
+
+#define REGISTER_NAMES {	\
+  "$fp", "$sp", "$r0", "$r1",   \
+  "$r2", "$r3", "$r4", "$r5",   \
+  "$r6", "$r7", "$r8", "$r9",   \
+  "$r10", "$r11", "$r12", "$r13",   \
+  "?fp", "?ap", "$pc", "?cc" }
+
+#define MOXIE_FP     0
+#define MOXIE_SP     1
+#define MOXIE_R0     2
+#define MOXIE_R1     3 
+#define MOXIE_R2     4
+#define MOXIE_R3     5
+#define MOXIE_R4     6
+#define MOXIE_R5     7
+#define MOXIE_R6     8
+#define MOXIE_R7     9
+#define MOXIE_R8     10
+#define MOXIE_R9     11
+#define MOXIE_R10    12
+#define MOXIE_R11    13
+#define MOXIE_R12    14
+#define MOXIE_R13    15
+#define MOXIE_QFP    16
+#define MOXIE_QAP    17
+#define MOXIE_PC     18
+#define MOXIE_CC     19
+
+#define FIRST_PSEUDO_REGISTER 20
+
+enum reg_class
+{
+  NO_REGS,
+  GENERAL_REGS,
+  SPECIAL_REGS,
+  CC_REGS,
+  ALL_REGS,
+  LIM_REG_CLASSES
+};
+
+
+/* The following macro defines cover classes for Integrated Register
+   Allocator.  Cover classes is a set of non-intersected register
+   classes covering all hard registers used for register allocation
+   purpose.  Any move between two registers of a cover class should be
+   cheaper than load or store of the registers.  The macro value is
+   array of register classes with LIM_REG_CLASSES used as the end
+   marker.  */
+#define IRA_COVER_CLASSES { GENERAL_REGS, LIM_REG_CLASSES }
+
+#define REG_CLASS_CONTENTS \
+{ { 0x00000000 }, /* Empty */			   \
+  { 0x0003FFFF }, /* $fp, $sp, $r0 to $r13, ?fp */ \
+  { 0x00040000 }, /* $pc */	                   \
+  { 0x00080000 }, /* ?cc */                        \
+  { 0x000FFFFF }  /* All registers */              \
+}
+
+#define N_REG_CLASSES LIM_REG_CLASSES
+
+#define REG_CLASS_NAMES {\
+    "NO_REGS", \
+    "GENERAL_REGS", \
+    "SPECIAL_REGS", \
+    "CC_REGS", \
+    "ALL_REGS" }
+
+#define FIXED_REGISTERS     { 1, 1, 0, 0, \
+			      0, 0, 0, 0, \
+			      0, 0, 0, 0, \
+			      0, 0, 0, 1, \
+                              1, 1, 1, 1 }
+
+#define CALL_USED_REGISTERS { 1, 1, 1, 1, \
+			      1, 1, 1, 1, \
+			      0, 0, 0, 0, \
+			      0, 0, 1, 1, \
+                              1, 1, 1, 1 }
+
+/* We can't copy to or from our CC register. */
+#define AVOID_CCMODE_COPIES 1
+
+/* A C expression that is nonzero if it is permissible to store a
+   value of mode MODE in hard register number REGNO (or in several
+   registers starting with that one).  All gstore registers are 
+   equivalent, so we can set this to 1.  */
+#define HARD_REGNO_MODE_OK(R,M) 1
+
+/* A C expression whose value is a register class containing hard
+   register REGNO.  */
+#define REGNO_REG_CLASS(R) ((R < MOXIE_PC) ? GENERAL_REGS :		\
+                            (R == MOXIE_CC ? CC_REGS : SPECIAL_REGS))
+
+/* A C expression for the number of consecutive hard registers,
+   starting at register number REGNO, required to hold a value of mode
+   MODE.  */
+#define HARD_REGNO_NREGS(REGNO, MODE)			   \
+  ((GET_MODE_SIZE (MODE) + UNITS_PER_WORD - 1)		   \
+   / UNITS_PER_WORD)
+
+/* A C expression that is nonzero if a value of mode MODE1 is
+   accessible in mode MODE2 without copying.  */
+#define MODES_TIEABLE_P(MODE1, MODE2) 1
+
+/* A C expression for the maximum number of consecutive registers of
+   class CLASS needed to hold a value of mode MODE.  */
+#define CLASS_MAX_NREGS(CLASS, MODE) \
+  ((GET_MODE_SIZE (MODE) + UNITS_PER_WORD - 1) / UNITS_PER_WORD)
+
+/* A C expression that places additional restrictions on the register
+   class to use when it is necessary to copy value X into a register
+   in class CLASS.  */
+#define PREFERRED_RELOAD_CLASS(X,CLASS) CLASS
+
+/* The Overall Framework of an Assembler File */
+
+#undef  ASM_SPEC
+#define ASM_COMMENT_START "#"
+#define ASM_APP_ON ""
+#define ASM_APP_OFF ""
+
+#define FILE_ASM_OP     "\t.file\n"
+
+/* Switch to the text or data segment.  */
+#define TEXT_SECTION_ASM_OP  "\t.text"
+#define DATA_SECTION_ASM_OP  "\t.data"
+
+/* Assembler Commands for Alignment */
+
+#define ASM_OUTPUT_ALIGN(STREAM,POWER) \
+	fprintf (STREAM, "\t.p2align\t%d\n", POWER);
+
+/* A C compound statement to output to stdio stream STREAM the
+   assembler syntax for an instruction operand X.  */
+#define PRINT_OPERAND(STREAM, X, CODE) moxie_print_operand (STREAM, X, CODE)
+
+#define PRINT_OPERAND_ADDRESS(STREAM ,X) moxie_print_operand_address (STREAM, X)
+
+/* Output and Generation of Labels */
+
+#define GLOBAL_ASM_OP "\t.global\t"
+
+/* Passing Arguments in Registers */
+
+/* A C expression that controls whether a function argument is passed
+   in a register, and which register.  */
+#define FUNCTION_ARG(CUM,MODE,TYPE,NAMED) \
+  moxie_function_arg(CUM,MODE,TYPE,NAMED)
+
+/* A C type for declaring a variable that is used as the first
+   argument of `FUNCTION_ARG' and other related values.  */
+#define CUMULATIVE_ARGS unsigned int
+
+/* If defined, the maximum amount of space required for outgoing arguments
+   will be computed and placed into the variable
+   `current_function_outgoing_args_size'.  No space will be pushed
+   onto the stack for each call; instead, the function prologue should
+   increase the stack frame size by this amount.  */
+#define ACCUMULATE_OUTGOING_ARGS 1
+
+/* A C statement (sans semicolon) for initializing the variable CUM
+   for the state at the beginning of the argument list.  
+   For moxie, the first arg is passed in register 2 (aka $r0).  */
+#define INIT_CUMULATIVE_ARGS(CUM,FNTYPE,LIBNAME,FNDECL,N_NAMED_ARGS) \
+  (CUM = MOXIE_R0)
+
+#define MOXIE_FUNCTION_ARG_SIZE(MODE, TYPE)	\
+  ((MODE) != BLKmode ? GET_MODE_SIZE (MODE)	\
+   : (unsigned) int_size_in_bytes (TYPE))
+
+#define FUNCTION_ARG_ADVANCE(CUM,MODE,TYPE,NAMED) \
+  (CUM = (CUM < MOXIE_R6 ?                        \
+          CUM + ((3 + MOXIE_FUNCTION_ARG_SIZE(MODE,TYPE))/4) : CUM ))
+
+/* How Scalar Function Values Are Returned */
+
+/* These macros are deprecated, but we still need them for now since
+   the version of gcc we're using doesn't fully support
+   TARGET_FUNCTION_VALUE.  */
+#define FUNCTION_VALUE(VALTYPE, FUNC) \
+  moxie_function_value (VALTYPE, FUNC, 0)
+#define FUNCTION_OUTGOING_VALUE(VALTYPE, FUNC) \
+  moxie_function_value (VALTYPE, FUNC, 1)
+
+/* A C expression to create an RTX representing the place where a
+   library function returns a value of mode MODE.  */
+#define LIBCALL_VALUE(MODE) gen_rtx_REG (MODE, 2)
+
+/* STACK AND CALLING */
+
+/* Define this macro if pushing a word onto the stack moves the stack
+   pointer to a smaller address.  */
+#define STACK_GROWS_DOWNWARD
+
+#define INITIAL_FRAME_POINTER_OFFSET(DEPTH) (DEPTH) = 0
+
+/* Offset from the frame pointer to the first local variable slot to
+   be allocated.  */
+#define STARTING_FRAME_OFFSET 0
+
+/* Define this if the above stack space is to be considered part of the
+   space allocated by the caller.  */
+#define OUTGOING_REG_PARM_STACK_SPACE(FNTYPE) 1
+#define STACK_PARMS_IN_REG_PARM_AREA
+
+/* Define this if it is the responsibility of the caller to allocate
+   the area reserved for arguments passed in registers.  */
+#define REG_PARM_STACK_SPACE(FNDECL) (6 * UNITS_PER_WORD)
+
+/* Offset from the argument pointer register to the first argument's
+   address.  On some machines it may depend on the data type of the
+   function.  */
+#define FIRST_PARM_OFFSET(F) 12
+
+/* Define this macro to nonzero value if the addresses of local variable slots
+   are at negative offsets from the frame pointer.  */
+#define FRAME_GROWS_DOWNWARD 1
+
+/* Define this macro as a C expression that is nonzero for registers that are
+   used by the epilogue or the return pattern.  The stack and frame
+   pointer registers are already assumed to be used as needed.  */
+#define EPILOGUE_USES(R) (R == MOXIE_R5)
+
+#define OVERRIDE_OPTIONS moxie_override_options ()
+
+/* Storage Layout */
+
+#define BITS_BIG_ENDIAN 0
+#define BYTES_BIG_ENDIAN 1
+#define WORDS_BIG_ENDIAN 1
+
+/* Alignment required for a function entry point, in bits.  */
+#define FUNCTION_BOUNDARY 16
+
+/* Define this macro as a C expression which is nonzero if accessing
+   less than a word of memory (i.e. a `char' or a `short') is no
+   faster than accessing a word of memory.  */
+#define SLOW_BYTE_ACCESS 1
+
+/* Number of storage units in a word; normally the size of a
+   general-purpose register, a power of two from 1 or 8.  */
+#define UNITS_PER_WORD 4
+
+/* Define this macro to the minimum alignment enforced by hardware
+   for the stack pointer on this machine.  The definition is a C
+   expression for the desired alignment (measured in bits).  */
+#define STACK_BOUNDARY 32
+
+/* Normal alignment required for function parameters on the stack, in
+   bits.  All stack parameters receive at least this much alignment
+   regardless of data type.  */
+#define PARM_BOUNDARY 32
+
+/* Alignment of field after `int : 0' in a structure.  */
+#define EMPTY_FIELD_BOUNDARY  32
+
+/* No data type wants to be aligned rounder than this.  */
+#define BIGGEST_ALIGNMENT 32
+
+/* The best alignment to use in cases where we have a choice.  */
+#define FASTEST_ALIGNMENT 32
+
+/* Every structures size must be a multiple of 8 bits.  */
+#define STRUCTURE_SIZE_BOUNDARY 8
+
+/* Look at the fundamental type that is used for a bit-field and use 
+   that to impose alignment on the enclosing structure.
+   struct s {int a:8}; should have same alignment as "int", not "char".  */
+#define	PCC_BITFIELD_TYPE_MATTERS	1
+
+/* Largest integer machine mode for structures.  If undefined, the default
+   is GET_MODE_SIZE(DImode).  */
+#define MAX_FIXED_MODE_SIZE 32
+
+/* Make strings word-aligned so strcpy from constants will be faster.  */
+#define CONSTANT_ALIGNMENT(EXP, ALIGN)  \
+  ((TREE_CODE (EXP) == STRING_CST	\
+    && (ALIGN) < FASTEST_ALIGNMENT)	\
+   ? FASTEST_ALIGNMENT : (ALIGN))
+
+/* Make arrays of chars word-aligned for the same reasons.  */
+#define DATA_ALIGNMENT(TYPE, ALIGN)		\
+  (TREE_CODE (TYPE) == ARRAY_TYPE		\
+   && TYPE_MODE (TREE_TYPE (TYPE)) == QImode	\
+   && (ALIGN) < FASTEST_ALIGNMENT ? FASTEST_ALIGNMENT : (ALIGN))
+     
+/* Set this nonzero if move instructions will actually fail to work
+   when given unaligned data.  */
+#define STRICT_ALIGNMENT 1
+
+/* Generating Code for Profiling */
+#define FUNCTION_PROFILER(FILE,LABELNO) (abort (), 0)
+
+/* Trampolines for Nested Functions.  */
+#define TRAMPOLINE_SIZE (2 + 6 + 6 + 2 + 6)
+
+/* Alignment required for trampolines, in bits.  */
+#define TRAMPOLINE_ALIGNMENT 16
+
+/* An alias for the machine mode for pointers.  */
+#define Pmode         SImode
+
+/* An alias for the machine mode used for memory references to
+   functions being called, in `call' RTL expressions.  */
+#define FUNCTION_MODE QImode
+
+/* The register number of the stack pointer register, which must also
+   be a fixed register according to `FIXED_REGISTERS'.  */
+#define STACK_POINTER_REGNUM MOXIE_SP
+
+/* The register number of the frame pointer register, which is used to
+   access automatic variables in the stack frame.  */
+#define FRAME_POINTER_REGNUM MOXIE_QFP
+
+/* The register number of the arg pointer register, which is used to
+   access the function's argument list.  */
+#define ARG_POINTER_REGNUM MOXIE_QAP
+
+#define HARD_FRAME_POINTER_REGNUM MOXIE_FP
+
+#define ELIMINABLE_REGS							\
+{{ FRAME_POINTER_REGNUM, HARD_FRAME_POINTER_REGNUM },			\
+ { ARG_POINTER_REGNUM,   HARD_FRAME_POINTER_REGNUM }}			
+
+/* This macro is similar to `INITIAL_FRAME_POINTER_OFFSET'.  It
+   specifies the initial difference between the specified pair of
+   registers.  This macro must be defined if `ELIMINABLE_REGS' is
+   defined.  */
+#define INITIAL_ELIMINATION_OFFSET(FROM, TO, OFFSET)			\
+  do {									\
+    (OFFSET) = moxie_initial_elimination_offset ((FROM), (TO));		\
+  } while (0)
+
+/* A C expression that is nonzero if REGNO is the number of a hard
+   register in which function arguments are sometimes passed.  */
+#define FUNCTION_ARG_REGNO_P(r) (r >= MOXIE_R0 && r <= MOXIE_R5)
+
+/* A C expression that is nonzero if REGNO is the number of a hard
+   register in which the values of called function may come back.  */
+#define FUNCTION_VALUE_REGNO_P(r) (r == MOXIE_R0)
+
+/* A macro whose definition is the name of the class to which a valid
+   base register must belong.  A base register is one used in an
+   address which is the register value plus a displacement.  */
+#define BASE_REG_CLASS GENERAL_REGS
+
+#define INDEX_REG_CLASS NO_REGS
+
+#define HARD_REGNO_OK_FOR_BASE_P(NUM) \
+  ((NUM) >= 0 && (NUM) < FIRST_PSEUDO_REGISTER \
+   && (REGNO_REG_CLASS(NUM) == GENERAL_REGS \
+       || (NUM) == HARD_FRAME_POINTER_REGNUM))
+
+/* A C expression which is nonzero if register number NUM is suitable
+   for use as a base register in operand addresses.  */
+#ifdef REG_OK_STRICT
+#define REGNO_OK_FOR_BASE_P(NUM)		 \
+  (HARD_REGNO_OK_FOR_BASE_P(NUM) 		 \
+   || HARD_REGNO_OK_FOR_BASE_P(reg_renumber[(NUM)]))
+#else
+#define REGNO_OK_FOR_BASE_P(NUM)		 \
+  ((NUM) >= FIRST_PSEUDO_REGISTER || HARD_REGNO_OK_FOR_BASE_P(NUM))
+#endif
+
+/* A C expression which is nonzero if register number NUM is suitable
+   for use as an index register in operand addresses.  */
+#define REGNO_OK_FOR_INDEX_P(NUM) MOXIE_FP
+
+/* The maximum number of bytes that a single instruction can move
+   quickly between memory and registers or between two memory
+   locations.  */
+#define MOVE_MAX 4
+#define TRULY_NOOP_TRUNCATION(op,ip) 1
+
+/* All load operations zero extend.  */
+#define LOAD_EXTEND_OP(MEM) ZERO_EXTEND
+
+#define RETURN_POPS_ARGS(FUNDECL, FUNTYPE, STACK_SIZE) 0
+
+/* A C expression that is nonzero if X is a legitimate constant for
+   an immediate operand on the target machine.  */
+#define LEGITIMATE_CONSTANT_P(X) 1
+
+/* A number, the maximum number of registers that can appear in a
+   valid memory address.  */
+#define MAX_REGS_PER_ADDRESS 1
+
+#define TRULY_NOOP_TRUNCATION(op,ip) 1
+
+/* An alias for a machine mode name.  This is the machine mode that
+   elements of a jump-table should have.  */
+#define CASE_VECTOR_MODE SImode
+
+/* A C compound statement with a conditional `goto LABEL;' executed
+   if X (an RTX) is a legitimate memory address on the target machine
+   for a memory operand of mode MODE.  */
+#define GO_IF_LEGITIMATE_ADDRESS(MODE,X,LABEL)		\
+  do {                                                  \
+    if (GET_CODE(X) == PLUS)				\
+      {							\
+	rtx op1,op2;					\
+	op1 = XEXP(X,0);				\
+	op2 = XEXP(X,1);				\
+	if (GET_CODE(op1) == REG			\
+	    && CONSTANT_ADDRESS_P(op2)			\
+	    && REGNO_OK_FOR_BASE_P(REGNO(op1)))		\
+	  goto LABEL;					\
+      }							\
+    if (REG_P (X) && REGNO_OK_FOR_BASE_P (REGNO (X)))	\
+      goto LABEL;					\
+    if (GET_CODE (X) == SYMBOL_REF			\
+	|| GET_CODE (X) == LABEL_REF			\
+	|| GET_CODE (X) == CONST)			\
+      goto LABEL;					\
+  } while (0)
+
+/* Run-time Target Specification */
+
+#define TARGET_CPU_CPP_BUILTINS() \
+  { \
+    builtin_define_std ("moxie");		\
+    builtin_define_std ("MOXIE");		\
+  }
+
+#define HAS_LONG_UNCOND_BRANCH true
+
+#endif /* GCC_MOXIE_H */