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Diffstat (limited to 'gcc/config/we32k/we32k.h')
| -rw-r--r-- | gcc/config/we32k/we32k.h | 1047 |
1 files changed, 0 insertions, 1047 deletions
diff --git a/gcc/config/we32k/we32k.h b/gcc/config/we32k/we32k.h deleted file mode 100644 index 460fc3d2820..00000000000 --- a/gcc/config/we32k/we32k.h +++ /dev/null @@ -1,1047 +0,0 @@ -/* Definitions of target machine for GNU compiler. AT&T we32000 version. - Copyright (C) 1991, 92, 93, 94, 95, 1996 Free Software Foundation, Inc. - Contributed by John Wehle (john@feith1.uucp) - -This file is part of GNU CC. - -GNU CC 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 1, or (at your option) -any later version. - -GNU CC 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. */ - - -/* Names to predefine in the preprocessor for this target machine. */ - -#define CPP_PREDEFINES "-Dwe32000 -Du3b2 -Dunix -Asystem(unix) -Acpu(we32000) -Amachine(we32000)" - -/* Print subsidiary information on the compiler version in use. */ - -#define TARGET_VERSION fprintf (stderr, " (we32000)"); - -/* Run-time compilation parameters selecting different hardware subsets. */ - -extern int target_flags; - -/* Macros used in the machine description to test the flags. */ - -/* Macro to define tables used to set the flags. - This is a list in braces of pairs in braces, - each pair being { "NAME", VALUE } - where VALUE is the bits to set or minus the bits to clear. - An empty string NAME is used to identify the default VALUE. */ - -#define TARGET_SWITCHES \ - { { "", TARGET_DEFAULT}} - -#define TARGET_DEFAULT 0 - - -/* target machine storage layout */ - -/* Define this if most significant bit is lowest numbered - in instructions that operate on numbered bit-fields. */ -#define BITS_BIG_ENDIAN 0 - -/* Define this if most significant byte of a word is the lowest numbered. */ -/* That is true on the we32000. */ -#define BYTES_BIG_ENDIAN 1 - -/* Define this if most significant word of a multiword is lowest numbered. */ -/* For we32000 we can decide arbitrarily - since there are no machine instructions for them. */ -#define WORDS_BIG_ENDIAN 1 - -/* number of bits in an addressable storage unit */ -#define BITS_PER_UNIT 8 - -/* Width in bits of a "word", which is the contents of a machine register. - Note that this is not necessarily the width of data type `int'; - if using 16-bit ints on a we32000, this would still be 32. - But on a machine with 16-bit registers, this would be 16. */ -#define BITS_PER_WORD 32 - -/* Width of a word, in units (bytes). */ -#define UNITS_PER_WORD 4 - -/* Width in bits of a pointer. - See also the macro `Pmode' defined below. */ -#define POINTER_SIZE 32 - -/* Allocation boundary (in *bits*) for storing arguments in argument list. */ -#define PARM_BOUNDARY 32 - -/* Boundary (in *bits*) on which stack pointer should be aligned. */ -#define STACK_BOUNDARY 32 - -/* Allocation boundary (in *bits*) for the code of a function. */ -#define FUNCTION_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 - -/* Every structure's size must be a multiple of this. */ -#define STRUCTURE_SIZE_BOUNDARY 32 - -/* Define this if move instructions will actually fail to work - when given unaligned data. */ -#define STRICT_ALIGNMENT 1 - -/* Define number of bits in most basic integer type. - (If undefined, default is BITS_PER_WORD). */ -#define INT_TYPE_SIZE 32 - -/* Integer bit fields should have the same size and alignment - as actual integers */ -#define PCC_BITFIELD_TYPE_MATTERS 1 - -/* Specify the size_t type. */ -#define SIZE_TYPE "unsigned int" - -/* Standard register usage. */ - -/* Number of actual hardware registers. - The hardware registers are assigned numbers for the compiler - from 0 to just below FIRST_PSEUDO_REGISTER. - All registers that the compiler knows about must be given numbers, - even those that are not normally considered general registers. */ -#define FIRST_PSEUDO_REGISTER 16 - -/* 1 for registers that have pervasive standard uses - and are not available for the register allocator. */ -#define FIXED_REGISTERS \ - {0, 0, 0, 0, 0, 0, 0, 0, \ - 0, 1, 1, 1, 1, 1, 1, 1, } - -/* 1 for registers not available across function calls. - These must include the FIXED_REGISTERS and also any - registers that can be used without being saved. - The latter must include the registers where values are returned - and the register where structure-value addresses are passed. - Aside from that, you can include as many other registers as you like. */ -#define CALL_USED_REGISTERS \ - {1, 1, 1, 0, 0, 0, 0, 0, \ - 0, 1, 1, 1, 1, 1, 1, 1, } - -/* Make sure everything's fine if we *don't* have a given processor. - This assumes that putting a register in fixed_regs will keep the - compilers mitt's completely off it. We don't bother to zero it out - of register classes. */ -/* #define CONDITIONAL_REGISTER_USAGE */ - -/* Return number of consecutive hard regs needed starting at reg REGNO - to hold something of mode MODE. - This is ordinarily the length in words of a value of mode MODE - but can be less for certain modes in special long registers. */ -#define HARD_REGNO_NREGS(REGNO, MODE) \ - ((GET_MODE_SIZE (MODE) + UNITS_PER_WORD - 1) / UNITS_PER_WORD) - -/* Value is 1 if hard register REGNO can hold a value of machine-mode MODE. */ -#define HARD_REGNO_MODE_OK(REGNO, MODE) 1 - -/* Value is 1 if it is a good idea to tie two pseudo registers - when one has mode MODE1 and one has mode MODE2. - If HARD_REGNO_MODE_OK could produce different values for MODE1 and MODE2, - for any hard reg, then this must be 0 for correct output. */ -#define MODES_TIEABLE_P(MODE1, MODE2) 0 - -/* Specify the registers used for certain standard purposes. - The values of these macros are register numbers. */ - -/* Register used for the program counter */ -#define PC_REGNUM 15 - -/* Register to use for pushing function arguments. */ -#define STACK_POINTER_REGNUM 12 - -/* Base register for access to local variables of the function. */ -#define FRAME_POINTER_REGNUM 9 - -/* Value should be nonzero if functions must have frame pointers. - Zero means the frame pointer need not be set up (and parms - may be accessed via the stack pointer) in functions that seem suitable. - This is computed in `reload', in reload1.c. */ -#define FRAME_POINTER_REQUIRED 1 - -/* Base register for access to arguments of the function. */ -#define ARG_POINTER_REGNUM 10 - -/* Register in which static-chain is passed to a function. */ -#define STATIC_CHAIN_REGNUM 8 - -/* Register in which address to store a structure value - is passed to a function. */ -#define STRUCT_VALUE_REGNUM 2 - -/* Order in which to allocate registers. */ -#define REG_ALLOC_ORDER \ - {0, 1, 8, 7, 6, 5, 4, 3} - -/* Define the classes of registers for register constraints in the - machine description. Also define ranges of constants. - - One of the classes must always be named ALL_REGS and include all hard regs. - If there is more than one class, another class must be named NO_REGS - and contain no registers. - - The name GENERAL_REGS must be the name of a class (or an alias for - another name such as ALL_REGS). This is the class of registers - that is allowed by "g" or "r" in a register constraint. - Also, registers outside this class are allocated only when - instructions express preferences for them. - - The classes must be numbered in nondecreasing order; that is, - a larger-numbered class must never be contained completely - in a smaller-numbered class. - - For any two classes, it is very desirable that there be another - class that represents their union. */ - -enum reg_class { NO_REGS, GENERAL_REGS, - ALL_REGS, LIM_REG_CLASSES }; - -#define N_REG_CLASSES (int) LIM_REG_CLASSES - -/* Give names of register classes as strings for dump file. */ - -#define REG_CLASS_NAMES \ - { "NO_REGS", "GENERAL_REGS", "ALL_REGS" } - -/* Define which registers fit in which classes. - This is an initializer for a vector of HARD_REG_SET - of length N_REG_CLASSES. */ - -#define REG_CLASS_CONTENTS \ -{ \ - 0, /* NO_REGS */ \ - 0x000017ff, /* GENERAL_REGS */ \ - 0x0000ffff, /* ALL_REGS */ \ -} - -/* The same information, inverted: - Return the class number of the smallest class containing - reg number REGNO. This could be a conditional expression - or could index an array. */ - -#define REGNO_REG_CLASS(REGNO) \ - (((REGNO) < 11 || (REGNO) == 12) ? GENERAL_REGS : ALL_REGS) - -/* The class value for index registers, and the one for base regs. */ - -#define INDEX_REG_CLASS NO_REGS -#define BASE_REG_CLASS GENERAL_REGS - -/* Get reg_class from a letter such as appears in the machine description. - We do a trick here to modify the effective constraints on the - machine description; we zorch the constraint letters that aren't - appropriate for a specific target. This allows us to guarantee - that a specific kind of register will not be used for a given target - without fiddling with the register classes above. */ - -#define REG_CLASS_FROM_LETTER(C) \ - ((C) == 'r' ? GENERAL_REGS : NO_REGS) - -/* The letters I, J, K, L and M in a register constraint string - can be used to stand for particular ranges of immediate operands. - This macro defines what the ranges are. - C is the letter, and VALUE is a constant value. - Return 1 if VALUE is in the range specified by C. */ - -#define CONST_OK_FOR_LETTER_P(VALUE, C) 0 - -/* - */ - -#define CONST_DOUBLE_OK_FOR_LETTER_P(VALUE, C) 0 - -/* Given an rtx X being reloaded into a reg required to be - in class CLASS, return the class of reg to actually use. - In general this is just CLASS; but on some machines - in some cases it is preferable to use a more restrictive class. */ - -#define PREFERRED_RELOAD_CLASS(X,CLASS) (CLASS) - -/* 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) - -/* 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 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 */ - -/* 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 - -/* If we generate an insn to push BYTES bytes, - this says how many the stack pointer really advances by. */ -#define PUSH_ROUNDING(BYTES) (((BYTES) + 3) & ~3) - -/* Offset of first parameter from the argument pointer register value. */ -#define FIRST_PARM_OFFSET(FNDECL) 0 - -/* Value is 1 if returning from a function call automatically - pops the arguments described by the number-of-args field in the 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. */ - -#define RETURN_POPS_ARGS(FUNDECL,FUNTYPE,SIZE) (SIZE) - -/* Define how to find the value returned by a function. - VALTYPE is the data type of the value (as a tree). - If the precise function being called is known, FUNC is its FUNCTION_DECL; - otherwise, FUNC is 0. */ - -/* On the we32000 the return value is in r0 regardless. */ - -#define FUNCTION_VALUE(VALTYPE, FUNC) \ - gen_rtx (REG, TYPE_MODE (VALTYPE), 0) - -/* Define how to find the value returned by a library function - assuming the value has mode MODE. */ - -/* On the we32000 the return value is in r0 regardless. */ - -#define LIBCALL_VALUE(MODE) gen_rtx (REG, MODE, 0) - -/* 1 if N is a possible register number for a function value. - On the we32000, r0 is the only register thus used. */ - -#define FUNCTION_VALUE_REGNO_P(N) ((N) == 0) - -/* Define this if PCC uses the nonreentrant convention for returning - structure and union values. */ - -/* #define PCC_STATIC_STRUCT_RETURN */ - -/* 1 if N is a possible register number for function argument passing. - On the we32000, no registers are used in this way. */ - -#define FUNCTION_ARG_REGNO_P(N) 0 - -/* 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 we32k, this is a single integer, which is a number of bytes - of arguments scanned so far. */ - -#define CUMULATIVE_ARGS int - -/* 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 we32k, the offset starts at 0. */ - -#define INIT_CUMULATIVE_ARGS(CUM,FNTYPE,LIBNAME,INDIRECT) \ - ((CUM) = 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) += ((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). */ - -/* On the we32000 all args are pushed */ - -#define FUNCTION_ARG(CUM, MODE, TYPE, NAMED) 0 - -/* For an arg passed partly in registers and partly in memory, - this is the number of registers used. - For args passed entirely in registers or entirely in memory, zero. */ - -#define FUNCTION_ARG_PARTIAL_NREGS(CUM, MODE, TYPE, NAMED) 0 - -/* This macro generates the assembly code for function entry. - FILE is a stdio stream to output the code to. - SIZE is an int: how many units of temporary storage to allocate. - Refer to the array `regs_ever_live' to determine which registers - to save; `regs_ever_live[I]' is nonzero if register number I - is ever used in the function. This macro is responsible for - knowing which registers should not be saved even if used. */ - -#define FUNCTION_PROLOGUE(FILE, SIZE) \ -{ register int nregs_to_save; \ - register int regno; \ - extern char call_used_regs[]; \ - nregs_to_save = 0; \ - for (regno = 8; regno > 2; regno--) \ - if (regs_ever_live[regno] && ! call_used_regs[regno]) \ - nregs_to_save = (9 - regno); \ - fprintf (FILE, "\tsave &%d\n", nregs_to_save); \ - if (SIZE) \ - fprintf (FILE, "\taddw2 &%d,%%sp\n", ((SIZE) + 3) & ~3); } - -/* Output assembler code to FILE to increment profiler label # LABELNO - for profiling a function entry. */ - -#define FUNCTION_PROFILER(FILE, LABELNO) \ - fprintf (FILE, "\tmovw &.LP%d,%%r0\n\tjsb _mcount\n", (LABELNO)) - -/* Output assembler code to FILE to initialize this source file's - basic block profiling info, if that has not already been done. */ - -#define FUNCTION_BLOCK_PROFILER(FILE, LABELNO) \ - fprintf (FILE, "\tcmpw .LPBX0,&0\n\tjne .LPI%d\n\tpushw &.LPBX0\n\tcall &1,__bb_init_func\n.LPI%d:\n", \ - LABELNO, LABELNO); - -/* Output assembler code to FILE to increment the entry-count for - the BLOCKNO'th basic block in this source file. */ - -#define BLOCK_PROFILER(FILE, BLOCKNO) \ - fprintf (FILE, "\taddw2 &1,.LPBX2+%d\n", 4 * BLOCKNO) - -/* 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 0 - -/* This macro generates the assembly code for function exit, - on machines that need it. If FUNCTION_EPILOGUE is not defined - then individual return instructions are generated for each - return statement. Args are same as for FUNCTION_PROLOGUE. - - The function epilogue should not depend on the current stack pointer! - It should use the frame pointer only. This is mandatory because - of alloca; we also take advantage of it to omit stack adjustments - before returning. */ - -#define FUNCTION_EPILOGUE(FILE, SIZE) \ -{ register int nregs_to_restore; \ - register int regno; \ - extern char call_used_regs[]; \ - nregs_to_restore = 0; \ - for (regno = 8; regno > 2; regno--) \ - if (regs_ever_live[regno] && ! call_used_regs[regno]) \ - nregs_to_restore = (9 - regno); \ - fprintf (FILE, "\tret &%d\n", nregs_to_restore); } - -/* Store in the variable DEPTH the initial difference between the - frame pointer reg contents and the stack pointer reg contents, - as of the start of the function body. This depends on the layout - of the fixed parts of the stack frame and on how registers are saved. - - On the we32k, FRAME_POINTER_REQUIRED is always 1, so the definition of this - macro doesn't matter. But it must be defined. */ - -#define INITIAL_FRAME_POINTER_OFFSET(DEPTH) (DEPTH) = 0; - -/* Output assembler code for a block containing the constant parts - of a trampoline, leaving space for the variable parts. */ - -/* On the we32k, the trampoline contains two instructions: - mov #STATIC,%r8 - jmp #FUNCTION */ - -#define TRAMPOLINE_TEMPLATE(FILE) \ -{ \ - ASM_OUTPUT_SHORT (FILE, gen_rtx (CONST_INT, VOIDmode, 0x844f)); \ - ASM_OUTPUT_SHORT (FILE, const0_rtx); \ - ASM_OUTPUT_SHORT (FILE, const0_rtx); \ - ASM_OUTPUT_CHAR (FILE, gen_rtx (CONST_INT, VOIDmode, 0x48)); \ - ASM_OUTPUT_SHORT (FILE, gen_rtx (CONST_INT, VOIDmode, 0x247f)); \ - ASM_OUTPUT_SHORT (FILE, const0_rtx); \ - ASM_OUTPUT_SHORT (FILE, const0_rtx); \ -} - -/* Length in units of the trampoline for entering a nested function. */ - -#define TRAMPOLINE_SIZE 13 - -/* Emit RTL insns to initialize the variable parts of a trampoline. - FNADDR is an RTX for the address of the function's pure code. - CXT is an RTX for the static chain value for the function. */ - -#define INITIALIZE_TRAMPOLINE(TRAMP, FNADDR, CXT) \ -{ \ - emit_move_insn (gen_rtx (MEM, SImode, plus_constant (TRAMP, 2)), CXT); \ - emit_move_insn (gen_rtx (MEM, SImode, plus_constant (TRAMP, 9)), FNADDR); \ -} - -/* Generate calls to memcpy() and memset() rather - than bcopy() and bzero() */ -#define TARGET_MEM_FUNCTIONS - -/* Addressing modes, and classification of registers for them. */ - -/* #define HAVE_POST_INCREMENT */ -/* #define HAVE_POST_DECREMENT */ - -/* #define HAVE_PRE_DECREMENT */ -/* #define HAVE_PRE_INCREMENT */ - -/* Macros to check register numbers against specific register classes. */ - -/* These assume that REGNO is a hard or pseudo reg number. - They give nonzero only if REGNO is a hard reg of the suitable class - or a pseudo reg currently allocated to a suitable hard reg. - Since they use reg_renumber, they are safe only once reg_renumber - has been allocated, which happens in local-alloc.c. */ - -#define REGNO_OK_FOR_INDEX_P(REGNO) 0 - -#define REGNO_OK_FOR_BASE_P(REGNO) \ - ((REGNO) < 11 || (REGNO) == 12 || \ - (unsigned)reg_renumber[REGNO] < 11 || (unsigned)reg_renumber[REGNO] == 12) - -/* Maximum number of registers that can appear in a valid memory address. */ - -#define MAX_REGS_PER_ADDRESS 1 - -/* Recognize any constant value that is a valid address. */ - -#define CONSTANT_ADDRESS_P(X) \ - (GET_CODE (X) == LABEL_REF || GET_CODE (X) == SYMBOL_REF \ - || GET_CODE (X) == CONST_INT || GET_CODE (X) == CONST \ - || GET_CODE (X) == HIGH) - -/* 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 - -/* The macros REG_OK_FOR..._P assume that the arg is a REG rtx - and check its validity for a certain class. - We have two alternate definitions for each of them. - The usual definition accepts all pseudo regs; the other rejects - them unless they have been allocated suitable hard regs. - The symbol REG_OK_STRICT causes the latter definition to be used. - - Most source files want to accept pseudo regs in the hope that - they will get allocated to the class that the insn wants them to be in. - Source files for reload pass need to be strict. - After reload, it makes no difference, since pseudo regs have - been eliminated by then. */ - -#ifndef REG_OK_STRICT - -/* Nonzero if X is a hard reg that can be used as an index - or if it is a pseudo reg. */ -#define REG_OK_FOR_INDEX_P(X) 0 - -/* Nonzero if X is a hard reg that can be used as a base reg - or if it is a pseudo reg. */ -#define REG_OK_FOR_BASE_P(X) \ - (REGNO(X) < 11 || REGNO(X) == 12 || REGNO(X) >= FIRST_PSEUDO_REGISTER) - -#else - -/* Nonzero if X is a hard reg that can be used as an index. */ -#define REG_OK_FOR_INDEX_P(X) REGNO_OK_FOR_INDEX_P (REGNO (X)) -/* Nonzero if X is a hard reg that can be used as a base reg. */ -#define REG_OK_FOR_BASE_P(X) REGNO_OK_FOR_BASE_P (REGNO (X)) - -#endif - -/* GO_IF_LEGITIMATE_ADDRESS recognizes an RTL expression - that is a valid memory address for an instruction. - The MODE argument is the machine mode for the MEM expression - that wants to use this address. */ - -#define GO_IF_LEGITIMATE_ADDRESS(MODE, X, LABEL) \ -{ register rtx Addr = X; \ - if ((MODE) == QImode || (MODE) == HImode || \ - (MODE) == PSImode || (MODE) == SImode || (MODE) == SFmode) \ - if (GET_CODE(Addr) == MEM) \ - Addr = XEXP(Addr, 0); \ - if (CONSTANT_ADDRESS_P(Addr)) \ - goto LABEL; \ - if (REG_P(Addr) && REG_OK_FOR_BASE_P(Addr)) \ - goto LABEL; \ - if (GET_CODE(Addr) == PLUS && \ - ((REG_P(XEXP(Addr, 0)) && REG_OK_FOR_BASE_P(XEXP(Addr, 0)) && \ - CONSTANT_ADDRESS_P(XEXP(Addr, 1))) || \ - (REG_P(XEXP(Addr, 1)) && REG_OK_FOR_BASE_P(XEXP(Addr, 1)) && \ - CONSTANT_ADDRESS_P(XEXP(Addr, 0))))) \ - goto LABEL; \ -} - -/* Try machine-dependent ways of modifying an illegitimate address - to be legitimate. If we find one, return the new, valid address. - This macro is used in only one place: `memory_address' in explow.c. - - OLDX is the address as it was before break_out_memory_refs was called. - In some cases it is useful to look at this to decide what needs to be done. - - MODE and WIN are passed so that this macro can use - GO_IF_LEGITIMATE_ADDRESS. - - It is always safe for this macro to do nothing. It exists to recognize - opportunities to optimize the output. */ - -#define LEGITIMIZE_ADDRESS(X,OLDX,MODE,WIN) { } - -/* Go to LABEL if ADDR (a legitimate address expression) - has an effect that depends on the machine mode it is used for. */ - -#define GO_IF_MODE_DEPENDENT_ADDRESS(ADDR,LABEL) { } - -/* Specify the machine mode that this machine uses - for the index in the tablejump instruction. */ -#define CASE_VECTOR_MODE SImode - -/* Define this if the tablejump instruction expects the table - to contain offsets from the address of the table. - Do not define this if the table should contain absolute addresses. */ -/* #define CASE_VECTOR_PC_RELATIVE */ - -/* Specify the tree operation to be used to convert reals to integers. */ -#define IMPLICIT_FIX_EXPR FIX_ROUND_EXPR - -/* This is the kind of divide that is easiest to do in the general case. */ -#define EASY_DIV_EXPR TRUNC_DIV_EXPR - -/* Define this as 1 if `char' should by default be signed; else as 0. */ -#define DEFAULT_SIGNED_CHAR 0 - -/* Max number of bytes we can move from memory to memory - in one reasonably fast instruction. */ -#define MOVE_MAX 4 - -/* Define this if zero-extension is slow (more than one real instruction). */ -/* #define SLOW_ZERO_EXTEND */ - -/* Nonzero if access to memory by bytes is slow and undesirable. */ -#define SLOW_BYTE_ACCESS 0 - -/* Define this to be nonzero if shift instructions ignore all but the low-order - few bits. */ -#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 - -/* We assume that the store-condition-codes instructions store 0 for false - and some other value for true. This is the value stored for true. */ - -#define STORE_FLAG_VALUE -1 - -/* When a prototype says `char' or `short', really pass an `int'. */ -#define PROMOTE_PROTOTYPES - -/* 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 - -/* Compute the cost of computing a constant rtl expression RTX - whose rtx-code is CODE. The body of this macro is a portion - of a switch statement. If the code is computed here, - return it with a return statement. Otherwise, break from the switch. */ - -#define CONST_COSTS(RTX,CODE, OUTER_CODE) \ - case CONST_INT: \ - if (INTVAL (RTX) >= -16 && INTVAL (RTX) <= 63) return 0; \ - if (INTVAL (RTX) >= -128 && INTVAL (RTX) <= 127) return 1; \ - if (INTVAL (RTX) >= -32768 && INTVAL (RTX) <= 32767) return 2; \ - case CONST: \ - case LABEL_REF: \ - case SYMBOL_REF: \ - return 3; \ - case CONST_DOUBLE: \ - return 5; - -/* Tell final.c how to eliminate redundant test instructions. */ - -/* Here we define machine-dependent flags and fields in cc_status - (see `conditions.h'). */ - -#define NOTICE_UPDATE_CC(EXP, INSN) \ -{ \ - { CC_STATUS_INIT; } \ -} - -/* Control the assembler format that we output. */ - -/* Use crt1.o as a startup file and crtn.o as a closing file. */ - -#define STARTFILE_SPEC "%{pg:gcrt1.o%s}%{!pg:%{p:mcrt1.o%s}%{!p:crt1.o%s}}" - -#define ENDFILE_SPEC "crtn.o%s" - -/* The .file command should always begin the output. */ - -#define ASM_FILE_START(FILE) output_file_directive ((FILE), main_input_filename) - -/* 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" - -/* Output before code. */ - -#define TEXT_SECTION_ASM_OP ".text" - -/* Output before writable data. */ - -#define DATA_SECTION_ASM_OP ".data" - -/* Read-only data goes in the data section because - AT&T's assembler doesn't guarantee the proper alignment - of data in the text section even if an align statement - is used. */ - -#define READONLY_DATA_SECTION() data_section() - -/* How to refer to registers in assembler output. - This sequence is indexed by compiler's hard-register-number (see above). */ - -#define REGISTER_NAMES \ -{"r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", \ - "r8", "fp", "ap", "psw", "sp", "pcbp", "isp", "pc" } - -/* How to renumber registers for dbx and gdb. */ - -#define DBX_REGISTER_NUMBER(REGNO) (REGNO) - -/* Output SDB debugging info in response to the -g option. */ - -#define SDB_DEBUGGING_INFO - -/* This is how to output the definition of a user-level label named NAME, - such as the label on a static function or variable NAME. */ - -#define ASM_OUTPUT_LABEL(FILE,NAME) \ - do { assemble_name (FILE, NAME); fputs (":\n", FILE); } while (0) - -/* This is how to output a command to make the user-level label named NAME - defined for reference from other files. */ - -#define ASM_GLOBALIZE_LABEL(FILE,NAME) \ - do { \ - fputs (".globl ", FILE); \ - assemble_name (FILE, NAME); \ - fputs ("\n", FILE); \ - } while (0) - -/* The prefix to add to user-visible assembler symbols. */ - -#define USER_LABEL_PREFIX "" - -/* This is how to output an internal numbered label where - PREFIX is the class of label and NUM is the number within the class. */ - -#define ASM_OUTPUT_INTERNAL_LABEL(FILE,PREFIX,NUM) \ - fprintf (FILE, ".%s%d:\n", PREFIX, NUM) - -/* This is how to store into the string LABEL - the symbol_ref name of an internal numbered label where - PREFIX is the class of label and NUM is the number within the class. - This is suitable for output with `assemble_name'. */ - -#define ASM_GENERATE_INTERNAL_LABEL(LABEL,PREFIX,NUM) \ - sprintf (LABEL, ".%s%d", PREFIX, NUM) - -/* This is how to output an internal numbered label which - labels a jump table. */ - -#define ASM_OUTPUT_CASE_LABEL(FILE,PREFIX,NUM,TABLE) \ - do { \ - ASM_OUTPUT_ALIGN (FILE, 2); \ - ASM_OUTPUT_INTERNAL_LABEL (FILE, PREFIX, NUM); \ - } while (0) - -/* Assembler pseudo to introduce byte constants. */ - -#define ASM_BYTE_OP "\t.byte" - -/* This is how to output an assembler line defining a `double' constant. */ - -/* This is how to output an assembler line defining a `float' constant. */ - -/* AT&T's assembler can't handle floating constants written as floating. - However, when cross-compiling, always use that in case format differs. */ - -#ifdef CROSS_COMPILER - -#define ASM_OUTPUT_DOUBLE(FILE,VALUE) \ - fprintf (FILE, "\t.double 0r%.20g\n", (VALUE)) - -#define ASM_OUTPUT_FLOAT(FILE,VALUE) \ - fprintf (FILE, "\t.float 0r%.10g\n", (VALUE)) - -#else - -#define ASM_OUTPUT_DOUBLE(FILE,VALUE) \ -do { union { double d; long l[2];} tem; \ - tem.d = (VALUE); \ - fprintf (FILE, "\t.word 0x%x, 0x%x\n", tem.l[0], tem.l[1]);\ - } while (0) - -#define ASM_OUTPUT_FLOAT(FILE,VALUE) \ -do { union { float f; long l;} tem; \ - tem.f = (VALUE); \ - fprintf (FILE, "\t.word 0x%x\n", tem.l); \ - } while (0) - -#endif /* not CROSS_COMPILER */ - -/* This is how to output an assembler line defining an `int' constant. */ - -#define ASM_OUTPUT_INT(FILE,VALUE) \ -( fprintf (FILE, "\t.word "), \ - output_addr_const (FILE, (VALUE)), \ - fprintf (FILE, "\n")) - -/* Likewise for `char' and `short' constants. */ - -#define ASM_OUTPUT_SHORT(FILE,VALUE) \ -( fprintf (FILE, "\t.half "), \ - output_addr_const (FILE, (VALUE)), \ - fprintf (FILE, "\n")) - -#define ASM_OUTPUT_CHAR(FILE,VALUE) \ -( fprintf (FILE, "\t.byte "), \ - output_addr_const (FILE, (VALUE)), \ - fprintf (FILE, "\n")) - -/* This is how to output an assembler line for a numeric constant byte. */ - -#define ASM_OUTPUT_BYTE(FILE,VALUE) \ - fprintf (FILE, "\t.byte 0x%x\n", (VALUE)) - -#define ASM_OUTPUT_ASCII(FILE,PTR,LEN) \ -do { \ - unsigned char *s; \ - int i; \ - for (i = 0, s = (unsigned char *)(PTR); i < (LEN); s++, i++) \ - { \ - if ((i % 8) == 0) \ - fprintf ((FILE),"%s\t.byte\t",(i?"\n":"")); \ - fprintf ((FILE), "%s0x%x", (i%8?",":""), (unsigned)*s); \ - } \ - fputs ("\n", (FILE)); \ -} while (0) - -/* This is how to output an insn to push a register on the stack. - It need not be very fast code. */ - -#define ASM_OUTPUT_REG_PUSH(FILE,REGNO) \ - fprintf (FILE, "\tpushw %s\n", reg_names[REGNO]) - -/* This is how to output an insn to pop a register from the stack. - It need not be very fast code. */ - -#define ASM_OUTPUT_REG_POP(FILE,REGNO) \ - fprintf (FILE, "\tPOPW %s\n", reg_names[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.word .L%d\n", VALUE) - -/* This is how to output an element of a case-vector that is relative. */ - -#define ASM_OUTPUT_ADDR_DIFF_ELT(FILE, VALUE, REL) \ - fprintf (FILE, "\t.word .L%d-.L%d\n", VALUE, REL) - -/* This is how to output an assembler line - that says to advance the location counter - to a multiple of 2**LOG bytes. */ - -#define ASM_OUTPUT_ALIGN(FILE,LOG) \ - if ((LOG) != 0) \ - fprintf (FILE, "\t.align %d\n", 1 << (LOG)) - -/* This is how to output an assembler line - that says to advance the location counter by SIZE bytes. */ - -/* The `space' pseudo in the text segment outputs nop insns rather than 0s, - so we must output 0s explicitly in the text segment. */ - -#define ASM_OUTPUT_SKIP(FILE,SIZE) \ - if (in_text_section ()) \ - { \ - int i; \ - for (i = 0; i < (SIZE) - 20; i += 20) \ - fprintf (FILE, "\t.byte 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0\n"); \ - if (i < (SIZE)) \ - { \ - fprintf (FILE, "\t.byte 0"); \ - i++; \ - for (; i < (SIZE); i++) \ - fprintf (FILE, ",0"); \ - fprintf (FILE, "\n"); \ - } \ - } \ - else \ - fprintf ((FILE), "\t.set .,.+%u\n", (SIZE)) - -/* This says how to output an assembler line - to define a global common symbol. */ - -#define ASM_OUTPUT_COMMON(FILE, NAME, SIZE, ROUNDED) \ - do { \ - data_section(); \ - fputs ("\t.comm ", (FILE)); \ - assemble_name ((FILE), (NAME)); \ - fprintf ((FILE), ",%u\n", (SIZE)); \ - } while (0) - -/* This says how to output an assembler line - to define a local common symbol. */ - -#define ASM_OUTPUT_LOCAL(FILE, NAME, SIZE, ROUNDED) \ - do { \ - data_section(); \ - ASM_OUTPUT_ALIGN ((FILE), 2); \ - ASM_OUTPUT_LABEL ((FILE), (NAME)); \ - fprintf ((FILE), "\t.zero %u\n", (SIZE)); \ - } while (0) - -/* Store in OUTPUT a string (made with alloca) containing - an assembler-name for a local static variable named NAME. - LABELNO is an integer which is different for each call. */ - -#define ASM_FORMAT_PRIVATE_NAME(OUTPUT, NAME, LABELNO) \ -( (OUTPUT) = (char *) alloca (strlen ((NAME)) + 10), \ - sprintf ((OUTPUT), "%s.%d", (NAME), (LABELNO))) - -/* Output #ident as a .ident. */ - -#define ASM_OUTPUT_IDENT(FILE, NAME) fprintf (FILE, "\t.ident \"%s\"\n", NAME) - -/* Define the parentheses used to group arithmetic operations - in assembler code. */ - -#define ASM_OPEN_PAREN "(" -#define ASM_CLOSE_PAREN ")" - -/* Define results of standard character escape sequences. */ -#define TARGET_BELL 007 -#define TARGET_BS 010 -#define TARGET_TAB 011 -#define TARGET_NEWLINE 012 -#define TARGET_VT 013 -#define TARGET_FF 014 -#define TARGET_CR 015 - -/* Print operand X (an rtx) in assembler syntax to file FILE. - CODE is a letter or dot (`z' in `%z0') or 0 if no letter was specified. - For `%' followed by punctuation, CODE is the punctuation and X is null. */ - -#define PRINT_OPERAND_PUNCT_VALID_P(CODE) 0 - -#define PRINT_OPERAND(FILE, X, CODE) \ -{ int i; \ - if (GET_CODE (X) == REG) \ - fprintf (FILE, "%%%s", reg_names[REGNO (X)]); \ - else if (GET_CODE (X) == MEM) \ - output_address (XEXP (X, 0)); \ - else if (GET_CODE (X) == CONST_DOUBLE && GET_MODE (X) == SFmode) \ - { \ - union { double d; long l[2]; } dtem; \ - union { float f; long l; } ftem; \ - \ - dtem.l[0] = CONST_DOUBLE_LOW (X); \ - dtem.l[1] = CONST_DOUBLE_HIGH (X); \ - ftem.f = dtem.d; \ - fprintf(FILE, "&0x%lx", ftem.l); \ - } \ - else { putc ('&', FILE); output_addr_const (FILE, X); }} - -#define PRINT_OPERAND_ADDRESS(FILE, ADDR) \ -{ register rtx Addr = ADDR; \ - rtx offset; \ - rtx reg; \ - if (GET_CODE (Addr) == MEM) { \ - putc ('*', FILE); \ - Addr = XEXP (Addr, 0); \ - if (GET_CODE (Addr) == REG) \ - putc ('0', FILE); \ - } \ - switch (GET_CODE (Addr)) \ - { \ - case REG: \ - fprintf (FILE, "(%%%s)", reg_names[REGNO (Addr)]); \ - break; \ - \ - case PLUS: \ - offset = NULL; \ - if (CONSTANT_ADDRESS_P (XEXP (Addr, 0))) \ - { \ - offset = XEXP (Addr, 0); \ - Addr = XEXP (Addr, 1); \ - } \ - else if (CONSTANT_ADDRESS_P (XEXP (Addr, 1))) \ - { \ - offset = XEXP (Addr, 1); \ - Addr = XEXP (Addr, 0); \ - } \ - else \ - abort(); \ - if (REG_P (Addr)) \ - reg = Addr; \ - else \ - abort(); \ - output_addr_const(FILE, offset); \ - fprintf(FILE, "(%%%s)", reg_names[REGNO(reg)]); \ - break; \ - \ - default: \ - if ( !CONSTANT_ADDRESS_P(Addr)) \ - abort(); \ - output_addr_const (FILE, Addr); \ - }} - -/* -Local variables: -version-control: t -End: -*/ |