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Diffstat (limited to 'gcc/config/ns32k/ns32k.h')
| -rw-r--r-- | gcc/config/ns32k/ns32k.h | 1477 |
1 files changed, 0 insertions, 1477 deletions
diff --git a/gcc/config/ns32k/ns32k.h b/gcc/config/ns32k/ns32k.h deleted file mode 100644 index 70cd9f201ae..00000000000 --- a/gcc/config/ns32k/ns32k.h +++ /dev/null @@ -1,1477 +0,0 @@ -/* Definitions of target machine for GNU compiler. NS32000 version. - Copyright (C) 1988, 93, 94, 95, 96, 1997 Free Software Foundation, Inc. - Contributed by Michael Tiemann (tiemann@cygnus.com) - -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 2, 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. */ - - -/* Note that some other tm.h files include this one and then override - many of the definitions that relate to assembler syntax. */ - -extern enum reg_class secondary_reload_class(); - -/* Names to predefine in the preprocessor for this target machine. */ - -#define CPP_PREDEFINES "-Dns32000 -Dunix -Asystem(unix) -Acpu(ns32k) -Amachine(ns32k)" - -/* Print subsidiary information on the compiler version in use. */ -#define TARGET_VERSION fprintf (stderr, " (32000, GAS syntax)"); - - -/* ABSOLUTE PREFIX, IMMEDIATE_PREFIX and EXTERNAL_PREFIX can be defined - to cover most NS32k addressing syntax variations. This way we don't - need to redefine long macros in all the tm.h files for just slight - variations in assembler syntax. */ - -#ifndef ABSOLUTE_PREFIX -#define ABSOLUTE_PREFIX '@' -#endif - -#if defined(IMMEDIATE_PREFIX) && IMMEDIATE_PREFIX -#define PUT_IMMEDIATE_PREFIX(FILE) putc(IMMEDIATE_PREFIX, FILE) -#else -#define PUT_IMMEDIATE_PREFIX(FILE) -#endif -#if defined(ABSOLUTE_PREFIX) && ABSOLUTE_PREFIX -#define PUT_ABSOLUTE_PREFIX(FILE) putc(ABSOLUTE_PREFIX, FILE) -#else -#define PUT_ABSOLUTE_PREFIX(FILE) -#endif -#if defined(EXTERNAL_PREFIX) && EXTERNAL_PREFIX -#define PUT_EXTERNAL_PREFIX(FILE) putc(EXTERNAL_PREFIX, FILE) -#else -#define PUT_EXTERNAL_PREFIX(FILE) -#endif - -/* Run-time compilation parameters selecting different hardware subsets. */ - -extern int target_flags; - -/* Macros used in the machine description to test the flags. */ - -/* Compile 32081 insns for floating point (not library calls). */ -#define TARGET_32081 (target_flags & 1) - -/* Compile using rtd insn calling sequence. - This will not work unless you use prototypes at least - for all functions that can take varying numbers of args. */ -#define TARGET_RTD (target_flags & 2) - -/* Compile passing first two args in regs 0 and 1. */ -#define TARGET_REGPARM (target_flags & 4) - -/* Options to select type of CPU, for better optimization. - The output is correct for any kind of 32000 regardless of these options. */ -#define TARGET_32532 (target_flags & 8) -#define TARGET_32332 (target_flags & 16) - -/* Ok to use the static base register (and presume it's 0) */ -#define TARGET_SB ((target_flags & 32) == 0) -#define TARGET_HIMEM (target_flags & 128) - -/* Compile using bitfield insns. */ -#define TARGET_BITFIELD ((target_flags & 64) == 0) - -/* 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 \ - { { "32081", 1}, \ - { "soft-float", -1}, \ - { "rtd", 2}, \ - { "nortd", -2}, \ - { "regparm", 4}, \ - { "noregparm", -4}, \ - { "32532", 24}, \ - { "32332", -8}, \ - { "32332", 16}, \ - { "32032", -24}, \ - { "sb", -32}, \ - { "nosb", 32}, \ - { "bitfield", -64}, \ - { "nobitfield", 64}, \ - { "himem", 128}, \ - { "nohimem", -128}, \ - { "", TARGET_DEFAULT}} -/* TARGET_DEFAULT is defined in encore.h, pc532.h, etc. */ - -/* When we are generating PIC, the sb is used as a pointer - to the GOT. */ - -#define OVERRIDE_OPTIONS \ -{ \ - if (flag_pic || TARGET_HIMEM) target_flags |= 32; \ -} - - -/* target machine storage layout */ - -/* Define this if most significant bit is lowest numbered - in instructions that operate on numbered bit-fields. - This is not true on the ns32k. */ -#define BITS_BIG_ENDIAN 0 - -/* Define this if most significant byte of a word is the lowest numbered. */ -/* That is not true on the ns32k. */ -#define BYTES_BIG_ENDIAN 0 - -/* Define this if most significant word of a multiword number is lowest - numbered. This is not true on the ns32k. */ -#define WORDS_BIG_ENDIAN 0 - -/* 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 32000, 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 16 - -/* Alignment of field after `int : 0' in a structure. */ -#define EMPTY_FIELD_BOUNDARY 32 - -/* Every structure's size must be a multiple of this. */ -#define STRUCTURE_SIZE_BOUNDARY 8 - -/* No data type wants to be aligned rounder than this. */ -#define BIGGEST_ALIGNMENT 32 - -/* Set this nonzero if move instructions will actually fail to work - when given unaligned data. National claims that the NS32032 - works without strict alignment, but rumor has it that operands - crossing a page boundary cause unpredictable results. */ -#define STRICT_ALIGNMENT 1 - -/* If bit field type is int, dont let it cross an int, - and give entire struct the alignment of an int. */ -/* Required on the 386 since it doesn't have a full set of bitfield insns. - (There is no signed extv insn.) */ -#define PCC_BITFIELD_TYPE_MATTERS 1 - -/* 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 18 - -/* 1 for registers that have pervasive standard uses - and are not available for the register allocator. - On the ns32k, these are the FP, SP, (SB and PC are not included here). */ -#define FIXED_REGISTERS {0, 0, 0, 0, 0, 0, 0, 0, \ - 0, 0, 0, 0, 0, 0, 0, 0, \ - 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, \ - 1, 1, 1, 1, 0, 0, 0, 0, \ - 1, 1} - -/* 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. - On the ns32k, all registers are 32 bits long. */ -#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) hard_regno_mode_ok (REGNO, MODE) - -/* 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) \ - (((MODE1) == DFmode || (MODE1) == DCmode || (MODE1) == DImode) == \ - ((MODE2) == DFmode || (MODE2) == DCmode || (MODE2) == DImode)) - -/* Specify the registers used for certain standard purposes. - The values of these macros are register numbers. */ - -/* NS32000 pc is not overloaded on a register. */ -/* #define PC_REGNUM */ - -/* Register to use for pushing function arguments. */ -#define STACK_POINTER_REGNUM 17 - -/* Base register for access to local variables of the function. */ -#define FRAME_POINTER_REGNUM 16 - -/* 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 0 - -/* Base register for access to arguments of the function. */ -#define ARG_POINTER_REGNUM 16 - -/* Register in which static-chain is passed to a function. */ -#define STATIC_CHAIN_REGNUM 1 - -/* Register in which address to store a structure value - is passed to a function. */ -#define STRUCT_VALUE_REGNUM 2 - -/* 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, FLOAT_REGS, GEN_AND_FP_REGS, - FRAME_POINTER_REG, STACK_POINTER_REG, - GEN_AND_MEM_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", "FLOAT_REGS", "GEN_AND_FP_REGS", \ - "FRAME_POINTER_REG", "STACK_POINTER_REG", "GEN_AND_MEM_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, 0x00ff, 0xff00, 0xffff, \ - 0x10000, 0x20000, 0x300ff, 0x3ffff } - -/* 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) < 8 ? GENERAL_REGS \ - : (REGNO) < 16 ? FLOAT_REGS \ - : (REGNO) == 16 ? FRAME_POINTER_REG \ - : (REGNO) == 17 ? STACK_POINTER_REG \ - : NO_REGS) - -/* The class value for index registers, and the one for base regs. */ - -#define INDEX_REG_CLASS GENERAL_REGS -#define BASE_REG_CLASS GEN_AND_MEM_REGS - -/* Get reg_class from a letter such as appears in the machine description. */ - -#define REG_CLASS_FROM_LETTER(C) \ - ((C) == 'f' ? FLOAT_REGS \ - : (C) == 'x' ? FRAME_POINTER_REG \ - : (C) == 'y' ? STACK_POINTER_REG \ - : 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. - - On the ns32k, these letters are used as follows: - - I : Matches integers which are valid shift amounts for scaled indexing. - These are 0, 1, 2, 3 for byte, word, double, and quadword. - Used for matching arithmetic shifts only on 32032 & 32332. - J : Matches integers which fit a "quick" operand. - K : Matches integers 0 to 7 (for inss and exts instructions). - */ - -#define CONST_OK_FOR_LETTER_P(VALUE, C) \ - ((VALUE) < 8 && (VALUE) + 8 >= 0 ? \ - ((C) == 'I' ? (!TARGET_32532 && 0 <= (VALUE) && (VALUE) <= 3) : \ - (C) == 'J' ? (VALUE) <= 7 : \ - (C) == 'K' ? 0 <= (VALUE) : 0) : 0) - -/* Similar, but for floating constants, and defining letters G and H. - Here VALUE is the CONST_DOUBLE rtx itself. */ - -#define CONST_DOUBLE_OK_FOR_LETTER_P(VALUE, C) 1 - -/* 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. */ - -/* We return GENERAL_REGS instead of GEN_AND_MEM_REGS. - The latter offers no real additional possibilities - and can cause spurious secondary reloading. */ -#define PREFERRED_RELOAD_CLASS(X,CLASS) \ - ((CLASS) == GEN_AND_MEM_REGS ? GENERAL_REGS : (CLASS)) - -/* Return the maximum number of consecutive registers - needed to represent mode MODE in a register of class CLASS. */ -/* On the 32000, this is the size of MODE in words */ -#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. - On the 32000, sp@- in a byte insn really pushes a BYTE. */ -#define PUSH_ROUNDING(BYTES) (BYTES) - -/* Offset of first parameter from the argument pointer register value. */ -#define FIRST_PARM_OFFSET(FNDECL) 8 - -/* Value is the number of byte 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. - - On the 32000, the RET insn may be used to pop them if the number - of args is fixed, but if the number is variable then the caller - must pop them all. RET can't be used for library calls now - because the library is compiled with the Unix compiler. - Use of RET is a selectable option, since it is incompatible with - standard Unix calling sequences. If the option is not selected, - the caller must always pop the args. */ - -#define RETURN_POPS_ARGS(FUNDECL,FUNTYPE,SIZE) \ - ((TARGET_RTD && (!(FUNDECL) || TREE_CODE (FUNDECL) != IDENTIFIER_NODE) \ - && (TYPE_ARG_TYPES (FUNTYPE) == 0 \ - || (TREE_VALUE (tree_last (TYPE_ARG_TYPES (FUNTYPE))) \ - == void_type_node))) \ - ? (SIZE) : 0) - -/* 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 32000 the return value is in R0, - or perhaps in F0 is there is fp support. */ - -#define FUNCTION_VALUE(VALTYPE, FUNC) \ - (TREE_CODE (VALTYPE) == REAL_TYPE && TARGET_32081 \ - ? gen_rtx (REG, TYPE_MODE (VALTYPE), 8) \ - : 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 32000 the return value is in R0, - or perhaps F0 is there is fp support. */ - -#define LIBCALL_VALUE(MODE) \ - (((MODE) == DFmode || (MODE) == SFmode) && TARGET_32081 \ - ? gen_rtx (REG, MODE, 8) \ - : gen_rtx (REG, MODE, 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 a function value. - On the 32000, R0 and F0 are the only registers thus used. */ - -#define FUNCTION_VALUE_REGNO_P(N) (((N) & ~8) == 0) - -/* 1 if N is a possible register number for function argument passing. - On the 32000, 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 ns32k, 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 ns32k, 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 32000 all args are pushed, except if -mregparm is specified - then the first two words of arguments are passed in r0, r1. - *NOTE* -mregparm does not work. - It exists only to test register calling conventions. */ - -#define FUNCTION_ARG(CUM, MODE, TYPE, NAMED) \ -((TARGET_REGPARM && (CUM) < 8) ? gen_rtx (REG, (MODE), (CUM) / 4) : 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) \ -((TARGET_REGPARM && (CUM) < 8 \ - && 8 < ((CUM) + ((MODE) == BLKmode \ - ? int_size_in_bytes (TYPE) \ - : GET_MODE_SIZE (MODE)))) \ - ? 2 - (CUM) / 4 : 0) - -#ifndef MAIN_FUNCTION_PROLOGUE -#define MAIN_FUNCTION_PROLOGUE -#endif - -/* - * The function prologue for the ns32k is fairly simple. - * If a frame pointer is needed (decided in reload.c ?) then - * we need assembler of the form - * - * # Save the oldframe pointer, set the new frame pointer, make space - * # on the stack and save any general purpose registers necessary - * - * enter [<general purpose regs to save>], <local stack space> - * - * movf fn, tos # Save any floating point registers necessary - * . - * . - * - * If a frame pointer is not needed we need assembler of the form - * - * # Make space on the stack - * - * adjspd <local stack space + 4> - * - * # Save any general purpose registers necessary - * - * save [<general purpose regs to save>] - * - * movf fn, tos # Save any floating point registers necessary - * . - * . - */ -#if defined(IMMEDIATE_PREFIX) && IMMEDIATE_PREFIX -#define ADJSP(FILE, n) \ - fprintf (FILE, "\tadjspd %c%d\n", IMMEDIATE_PREFIX, (n)) -#else -#define ADJSP(FILE, n) \ - fprintf (FILE, "\tadjspd %d\n", (n)) -#endif - -#define FUNCTION_PROLOGUE(FILE, SIZE) \ -{ register int regno, g_regs_used = 0; \ - int used_regs_buf[8], *bufp = used_regs_buf; \ - int used_fregs_buf[8], *fbufp = used_fregs_buf; \ - extern char call_used_regs[]; \ - extern int current_function_uses_pic_offset_table, flag_pic; \ - MAIN_FUNCTION_PROLOGUE; \ - for (regno = 0; regno < 8; regno++) \ - if (regs_ever_live[regno] \ - && ! call_used_regs[regno]) \ - { \ - *bufp++ = regno; g_regs_used++; \ - } \ - *bufp = -1; \ - for (; regno < 16; regno++) \ - if (regs_ever_live[regno] && !call_used_regs[regno]) \ - { \ - *fbufp++ = regno; \ - } \ - *fbufp = -1; \ - bufp = used_regs_buf; \ - if (frame_pointer_needed) \ - fprintf (FILE, "\tenter ["); \ - else \ - { \ - if (SIZE) \ - ADJSP (FILE, SIZE + 4); \ - if (g_regs_used && g_regs_used > 4) \ - fprintf (FILE, "\tsave ["); \ - else \ - { \ - while (*bufp >= 0) \ - fprintf (FILE, "\tmovd r%d,tos\n", *bufp++); \ - g_regs_used = 0; \ - } \ - } \ - while (*bufp >= 0) \ - { \ - fprintf (FILE, "r%d", *bufp++); \ - if (*bufp >= 0) \ - fputc (',', FILE); \ - } \ - if (frame_pointer_needed) \ - fprintf (FILE, "],%d\n", SIZE); \ - else if (g_regs_used) \ - fprintf (FILE, "]\n"); \ - fbufp = used_fregs_buf; \ - while (*fbufp >= 0) \ - { \ - if ((*fbufp & 1) || (fbufp[0] != fbufp[1] - 1)) \ - fprintf (FILE, "\tmovf f%d,tos\n", *fbufp++ - 8); \ - else \ - { \ - fprintf (FILE, "\tmovl f%d,tos\n", fbufp[0] - 8); \ - fbufp += 2; \ - } \ - } \ - if (flag_pic && current_function_uses_pic_offset_table) \ - { \ - fprintf (FILE, "\tsprd sb,tos\n"); \ - if (TARGET_REGPARM) \ - { \ - fprintf (FILE, "\taddr __GLOBAL_OFFSET_TABLE_(pc),tos\n"); \ - fprintf (FILE, "\tlprd sb,tos\n"); \ - } \ - else \ - { \ - fprintf (FILE, "\taddr __GLOBAL_OFFSET_TABLE_(pc),r0\n"); \ - fprintf (FILE, "\tlprd sb,r0\n"); \ - } \ - } \ -} - -/* Output assembler code to FILE to increment profiler label # LABELNO - for profiling a function entry. - - THIS DEFINITION FOR THE 32000 IS A GUESS. IT HAS NOT BEEN TESTED. */ - -#define FUNCTION_PROFILER(FILE, LABELNO) \ - fprintf (FILE, "\taddr LP%d,r0\n\tbsr mcount\n", (LABELNO)) - -/* 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. - - We use 0, because using 1 requires hair in FUNCTION_EPILOGUE - that is worse than the stack adjust we could save. */ - -/* #define EXIT_IGNORE_STACK 1 */ - -/* 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, - if EXIT_IGNORE_STACK is nonzero. That doesn't apply here. - - If a frame pointer is needed (decided in reload.c ?) then - we need assembler of the form - - movf tos, fn # Restore any saved floating point registers - . - . - - # Restore any saved general purpose registers, restore the stack - # pointer from the frame pointer, restore the old frame pointer. - exit [<general purpose regs to save>] - - If a frame pointer is not needed we need assembler of the form - # Restore any general purpose registers saved - - movf tos, fn # Restore any saved floating point registers - . - . - . - restore [<general purpose regs to save>] - - # reclaim space allocated on stack - - adjspd <-(local stack space + 4)> */ - - -#define FUNCTION_EPILOGUE(FILE, SIZE) \ -{ register int regno, g_regs_used = 0, f_regs_used = 0; \ - int used_regs_buf[8], *bufp = used_regs_buf; \ - int used_fregs_buf[8], *fbufp = used_fregs_buf; \ - extern char call_used_regs[]; \ - extern int current_function_uses_pic_offset_table, flag_pic; \ - if (flag_pic && current_function_uses_pic_offset_table) \ - fprintf (FILE, "\tlprd sb,tos\n"); \ - *fbufp++ = -2; \ - for (regno = 8; regno < 16; regno++) \ - if (regs_ever_live[regno] && !call_used_regs[regno]) \ - { \ - *fbufp++ = regno; f_regs_used++; \ - } \ - fbufp--; \ - for (regno = 0; regno < 8; regno++) \ - if (regs_ever_live[regno] \ - && ! call_used_regs[regno]) \ - { \ - *bufp++ = regno; g_regs_used++; \ - } \ - while (fbufp > used_fregs_buf) \ - { \ - if ((*fbufp & 1) && fbufp[0] == fbufp[-1] + 1) \ - { \ - fprintf (FILE, "\tmovl tos,f%d\n", fbufp[-1] - 8); \ - fbufp -= 2; \ - } \ - else fprintf (FILE, "\tmovf tos,f%d\n", *fbufp-- - 8); \ - } \ - if (frame_pointer_needed) \ - fprintf (FILE, "\texit ["); \ - else \ - { \ - if (g_regs_used && g_regs_used > 4) \ - fprintf (FILE, "\trestore ["); \ - else \ - { \ - while (bufp > used_regs_buf) \ - fprintf (FILE, "\tmovd tos,r%d\n", *--bufp); \ - g_regs_used = 0; \ - } \ - } \ - while (bufp > used_regs_buf) \ - { \ - fprintf (FILE, "r%d", *--bufp); \ - if (bufp > used_regs_buf) \ - fputc (',', FILE); \ - } \ - if (g_regs_used || frame_pointer_needed) \ - fprintf (FILE, "]\n"); \ - if (SIZE && !frame_pointer_needed) \ - ADJSP (FILE, -(SIZE + 4)); \ - if (current_function_pops_args) \ - fprintf (FILE, "\tret %d\n", current_function_pops_args); \ - else fprintf (FILE, "\tret 0\n"); } - -/* 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. */ - -#define INITIAL_FRAME_POINTER_OFFSET(DEPTH) \ -{ \ - int regno; \ - int offset = -4; \ - extern int current_function_uses_pic_offset_table, flag_pic; \ - for (regno = 0; regno < 16; regno++) \ - if (regs_ever_live[regno] && ! call_used_regs[regno]) \ - offset += 4; \ - if (flag_pic && current_function_uses_pic_offset_table) \ - offset += 4; \ - (DEPTH) = (offset + get_frame_size () \ - + (get_frame_size () == 0 ? 0 : 4)); \ -} - - -/* Output assembler code for a block containing the constant parts - of a trampoline, leaving space for the variable parts. */ - -/* On the 32k, the trampoline looks like this: - addr 0(pc),r2 - jump @__trampoline - .int STATIC - .int FUNCTION -Doing trampolines with a library assist function is easier than figuring -out how to do stores to memory in reverse byte order (the way immediate -operands on the 32k are stored). */ - -#define TRAMPOLINE_TEMPLATE(FILE) \ -{ \ - fprintf (FILE, "\taddr 0(pc),r2\n" ); \ - fprintf (FILE, "\tjump " ); \ - PUT_ABSOLUTE_PREFIX (FILE); \ - fprintf (FILE, "__trampoline\n" ); \ - ASM_OUTPUT_INT (FILE, const0_rtx); \ - ASM_OUTPUT_INT (FILE, const0_rtx); \ -} - -/* Length in units of the trampoline for entering a nested function. */ - -#define TRAMPOLINE_SIZE 20 - -/* 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, 12)), CXT); \ - emit_move_insn (gen_rtx (MEM, SImode, plus_constant (TRAMP, 16)), FNADDR); \ -} - -/* This is the library routine that is used - to transfer control from the trampoline - to the actual nested function. */ - -/* The function name __transfer_from_trampoline is not actually used. - The function definition just permits use of "asm with operands" - (though the operand list is empty). */ -#define TRANSFER_FROM_TRAMPOLINE \ -void \ -__transfer_from_trampoline () \ -{ \ - asm (".globl __trampoline"); \ - asm ("__trampoline:"); \ - asm ("movd 16(r2),tos"); \ - asm ("movd 12(r2),r1"); \ - asm ("ret 0"); \ -} - -/* 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. */ - -/* note that FP and SP cannot be used as an index. What about PC? */ -#define REGNO_OK_FOR_INDEX_P(REGNO) \ -((REGNO) < 8 || (unsigned)reg_renumber[REGNO] < 8) -#define REGNO_OK_FOR_BASE_P(REGNO) \ -((REGNO) < 8 || (unsigned)reg_renumber[REGNO] < 8 \ - || (REGNO) == FRAME_POINTER_REGNUM || (REGNO) == STACK_POINTER_REGNUM) - -#define FP_REG_P(X) (GET_CODE (X) == REG && REGNO (X) > 7 && REGNO (X) < 16) - -/* Maximum number of registers that can appear in a valid memory address. */ - -#define MAX_REGS_PER_ADDRESS 2 - -/* Recognize any constant value that is a valid address. - This might not work on future ns32k processors as negative - displacements are not officially allowed but a mode reserved - to National. This works on processors up to 32532, though. */ - -#define CONSTANT_ADDRESS_P(X) \ - (GET_CODE (X) == LABEL_REF || GET_CODE (X) == SYMBOL_REF \ - || GET_CODE (X) == CONST \ - || (GET_CODE (X) == CONST_INT \ - && ((unsigned)INTVAL (X) >= 0xe0000000 \ - || (unsigned)INTVAL (X) < 0x20000000))) - -#define CONSTANT_ADDRESS_NO_LABEL_P(X) \ - (GET_CODE (X) == CONST_INT \ - && ((unsigned)INTVAL (X) >= 0xe0000000 \ - || (unsigned)INTVAL (X) < 0x20000000)) - -/* Return the register class of a scratch register needed to copy IN into - or out of a register in CLASS in MODE. If it can be done directly, - NO_REGS is returned. */ - -#define SECONDARY_RELOAD_CLASS(CLASS,MODE,IN) \ - secondary_reload_class (CLASS, MODE, IN) - -/* 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) \ - (REGNO (X) < 8 || REGNO (X) >= FIRST_PSEUDO_REGISTER) -/* Nonzero if X is a hard reg that can be used as a base reg - of if it is a pseudo reg. */ -#define REG_OK_FOR_BASE_P(X) (REGNO (X) < 8 || REGNO (X) >= FRAME_POINTER_REGNUM) -/* Nonzero if X is a floating point reg or a pseudo reg. */ - -#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. - - The other macros defined here are used only in GO_IF_LEGITIMATE_ADDRESS. */ - -/* 1 if X is an address that we could indirect through. */ -/***** NOTE ***** There is a bug in the Sequent assembler which fails - to fixup addressing information for symbols used as offsets - from registers which are not FP or SP (or SB or PC). This - makes _x(fp) valid, while _x(r0) is invalid. */ - -#define INDIRECTABLE_1_ADDRESS_P(X) \ - (CONSTANT_ADDRESS_P (X) \ - || (GET_CODE (X) == REG && REG_OK_FOR_BASE_P (X)) \ - || (GET_CODE (X) == PLUS \ - && GET_CODE (XEXP (X, 0)) == REG \ - && REG_OK_FOR_BASE_P (XEXP (X, 0)) \ - && ((flag_pic || TARGET_HIMEM) ? \ - CONSTANT_ADDRESS_NO_LABEL_P (XEXP (X, 1)) \ - : \ - CONSTANT_ADDRESS_P (XEXP (X, 1))) \ - && (GET_CODE (X) != CONST_INT || NS32K_DISPLACEMENT_P (INTVAL (X))))) - -/* 1 if integer I will fit in a 4 byte displacement field. - Strictly speaking, we can't be sure that a symbol will fit this range. - But, in practice, it always will. */ - -/* idall@eleceng.adelaide.edu.au says that the 32016 and 32032 - can handle the full range of displacements--it is only the addresses - that have a limited range. So the following was deleted: - (((i) <= 16777215 && (i) >= -16777216) - || ((TARGET_32532 || TARGET_32332) && ...)) */ -#define NS32K_DISPLACEMENT_P(i) \ - ((i) < (1 << 29) && (i) >= - (1 << 29)) - -/* Check for frame pointer or stack pointer. */ -#define MEM_REG(X) \ - (GET_CODE (X) == REG && (REGNO (X) ^ 16) < 2) - -/* A memory ref whose address is the FP or SP, with optional integer offset, - or (on certain machines) a constant address. */ -#define INDIRECTABLE_2_ADDRESS_P(X) \ - (GET_CODE (X) == MEM \ - && (((xfoo0 = XEXP (X, 0), MEM_REG (xfoo0)) \ - || (GET_CODE (xfoo0) == PLUS \ - && MEM_REG (XEXP (xfoo0, 0)) \ - && CONSTANT_ADDRESS_NO_LABEL_P (XEXP (xfoo0, 1)))) \ - || (TARGET_SB && CONSTANT_ADDRESS_P (xfoo0)))) - -/* Go to ADDR if X is a valid address not using indexing. - (This much is the easy part.) */ -#define GO_IF_NONINDEXED_ADDRESS(X, ADDR) \ -{ register rtx xfoob = (X); \ - if (INDIRECTABLE_1_ADDRESS_P (X)) goto ADDR; \ - if (INDIRECTABLE_2_ADDRESS_P (X)) goto ADDR; \ - if (GET_CODE (X) == PLUS) \ - if (CONSTANT_ADDRESS_NO_LABEL_P (XEXP (X, 1))) \ - if (INDIRECTABLE_2_ADDRESS_P (XEXP (X, 0))) \ - goto ADDR; \ -} - -/* Go to ADDR if X is a valid address not using indexing. - (This much is the easy part.) */ -#define GO_IF_INDEXING(X, MODE, ADDR) \ -{ register rtx xfoob = (X); \ - if (GET_CODE (xfoob) == PLUS && INDEX_TERM_P (XEXP (xfoob, 0), MODE)) \ - GO_IF_INDEXABLE_ADDRESS (XEXP (xfoob, 1), ADDR); \ - if (GET_CODE (xfoob) == PLUS && INDEX_TERM_P (XEXP (xfoob, 1), MODE)) \ - GO_IF_INDEXABLE_ADDRESS (XEXP (xfoob, 0), ADDR); } \ - -#define GO_IF_INDEXABLE_ADDRESS(X, ADDR) \ -{ if (GET_CODE (X) == REG && REG_OK_FOR_BASE_P (X)) goto ADDR; \ - if (INDIRECTABLE_2_ADDRESS_P (X)) goto ADDR; \ - if (INDIRECTABLE_1_ADDRESS_P (X)) goto ADDR; \ -} - -/* 1 if PROD is either a reg times size of mode MODE - or just a reg, if MODE is just one byte. Actually, on the ns32k, - since the index mode is independent of the operand size, - we can match more stuff... - - This macro's expansion uses the temporary variables xfoo0, xfoo1 - and xfoo2 that must be declared in the surrounding context. */ -#define INDEX_TERM_P(PROD, MODE) \ -((GET_CODE (PROD) == REG && REG_OK_FOR_INDEX_P (PROD)) \ - || (GET_CODE (PROD) == MULT \ - && (xfoo0 = XEXP (PROD, 0), xfoo1 = XEXP (PROD, 1), \ - (GET_CODE (xfoo1) == CONST_INT \ - && GET_CODE (xfoo0) == REG \ - && FITS_INDEX_RANGE (INTVAL (xfoo1)) \ - && REG_OK_FOR_INDEX_P (xfoo0))))) - -#define FITS_INDEX_RANGE(X) \ - ((xfoo2 = (unsigned)(X)-1), \ - ((xfoo2 < 4 && xfoo2 != 2) || xfoo2 == 7)) - -/* Note that xfoo0, xfoo1, xfoo2 are used in some of the submacros above. */ -#define GO_IF_LEGITIMATE_ADDRESS(MODE, X, ADDR) \ -{ register rtx xfooy, xfoo0, xfoo1; \ - unsigned xfoo2; \ - extern int current_function_uses_pic_offset_table, flag_pic; \ - xfooy = X; \ - if (flag_pic && ! current_function_uses_pic_offset_table \ - && global_symbolic_reference_mentioned_p (X, 1)) \ - current_function_uses_pic_offset_table = 1; \ - GO_IF_NONINDEXED_ADDRESS (xfooy, ADDR); \ - if (GET_CODE (xfooy) == PLUS) \ - { \ - if (CONSTANT_ADDRESS_NO_LABEL_P (XEXP (xfooy, 1)) \ - && GET_CODE (XEXP (xfooy, 0)) == PLUS) \ - xfooy = XEXP (xfooy, 0); \ - else if (CONSTANT_ADDRESS_NO_LABEL_P (XEXP (xfooy, 0)) \ - && GET_CODE (XEXP (xfooy, 1)) == PLUS) \ - xfooy = XEXP (xfooy, 1); \ - GO_IF_INDEXING (xfooy, MODE, ADDR); \ - } \ - else if (INDEX_TERM_P (xfooy, MODE)) \ - goto ADDR; \ - else if (GET_CODE (xfooy) == PRE_DEC) \ - if (REGNO (XEXP (xfooy, 0)) == STACK_POINTER_REGNUM) goto ADDR; \ - else abort (); \ -} - -/* 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. - - For the ns32k, we do nothing */ - -#define LEGITIMIZE_ADDRESS(X,OLDX,MODE,WIN) {} - -/* Nonzero if the constant value X is a legitimate general operand - when generating PIC code. It is given that flag_pic is on and - that X satisfies CONSTANT_P or is a CONST_DOUBLE. */ - -extern int current_function_uses_pic_offset_table, flag_pic; -#define LEGITIMATE_PIC_OPERAND_P(X) \ - (((! current_function_uses_pic_offset_table \ - && global_symbolic_reference_mentioned_p (X, 1))? \ - (current_function_uses_pic_offset_table = 1):0 \ - ), 1) - -/* Define this macro if references to a symbol must be treated - differently depending on something about the variable or - function named by the symbol (such as what section it is in). - - On the ns32k, if using PIC, mark a SYMBOL_REF for a non-global - symbol or a code symbol. These symbols are referenced via pc - and not via sb. */ - -#define ENCODE_SECTION_INFO(DECL) \ -do \ - { \ - extern int flag_pic; \ - if (flag_pic) \ - { \ - rtx rtl = (TREE_CODE_CLASS (TREE_CODE (DECL)) != 'd' \ - ? TREE_CST_RTL (DECL) : DECL_RTL (DECL)); \ - SYMBOL_REF_FLAG (XEXP (rtl, 0)) \ - = (TREE_CODE_CLASS (TREE_CODE (DECL)) != 'd' \ - || ! TREE_PUBLIC (DECL)); \ - } \ - } \ -while (0) - -/* Go to LABEL if ADDR (a legitimate address expression) - has an effect that depends on the machine mode it is used for. - On the ns32k, only predecrement and postincrement address depend thus - (the amount of decrement or increment being the length of the operand). */ - -#define GO_IF_MODE_DEPENDENT_ADDRESS(ADDR,LABEL) \ - { if (GET_CODE (ADDR) == POST_INC || GET_CODE (ADDR) == PRE_DEC) \ - goto LABEL;} - -/* Specify the machine mode that this machine uses - for the index in the tablejump instruction. - HI mode is more efficient but the range is not wide enough for - all programs. */ -#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 1 - -/* 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 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 */ - -/* 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 - -/* 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 address ADDRESS. */ - -#define ADDRESS_COST(RTX) calc_address_cost (RTX) - -/* 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) <= 7 && INTVAL (RTX) >= -8) return 0; \ - if (INTVAL (RTX) < 0x2000 && INTVAL (RTX) >= -0x2000) \ - return 1; \ - 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'). */ - -/* This bit means that what ought to be in the Z bit - should be tested in the F bit. */ -#define CC_Z_IN_F 04000 - -/* This bit means that what ought to be in the Z bit - is complemented in the F bit. */ -#define CC_Z_IN_NOT_F 010000 - -/* 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 NOTICE_UPDATE_CC(EXP, INSN) \ -{ if (GET_CODE (EXP) == SET) \ - { if (GET_CODE (SET_DEST (EXP)) == CC0) \ - { cc_status.flags = 0; \ - cc_status.value1 = SET_DEST (EXP); \ - cc_status.value2 = SET_SRC (EXP); \ - } \ - else if (GET_CODE (SET_SRC (EXP)) == CALL) \ - { CC_STATUS_INIT; } \ - else if (GET_CODE (SET_DEST (EXP)) == REG) \ - { if (cc_status.value1 \ - && reg_overlap_mentioned_p (SET_DEST (EXP), cc_status.value1)) \ - cc_status.value1 = 0; \ - if (cc_status.value2 \ - && reg_overlap_mentioned_p (SET_DEST (EXP), cc_status.value2)) \ - cc_status.value2 = 0; \ - } \ - else if (GET_CODE (SET_DEST (EXP)) == MEM) \ - { CC_STATUS_INIT; } \ - } \ - else if (GET_CODE (EXP) == PARALLEL \ - && GET_CODE (XVECEXP (EXP, 0, 0)) == SET) \ - { if (GET_CODE (SET_DEST (XVECEXP (EXP, 0, 0))) == CC0) \ - { cc_status.flags = 0; \ - cc_status.value1 = SET_DEST (XVECEXP (EXP, 0, 0)); \ - cc_status.value2 = SET_SRC (XVECEXP (EXP, 0, 0)); \ - } \ - else if (GET_CODE (SET_DEST (XVECEXP (EXP, 0, 0))) == REG) \ - { if (cc_status.value1 \ - && reg_overlap_mentioned_p (SET_DEST (XVECEXP (EXP, 0, 0)), cc_status.value1)) \ - cc_status.value1 = 0; \ - if (cc_status.value2 \ - && reg_overlap_mentioned_p (SET_DEST (XVECEXP (EXP, 0, 0)), cc_status.value2)) \ - cc_status.value2 = 0; \ - } \ - else if (GET_CODE (SET_DEST (XVECEXP (EXP, 0, 0))) == MEM) \ - { CC_STATUS_INIT; } \ - } \ - else if (GET_CODE (EXP) == CALL) \ - { /* all bets are off */ CC_STATUS_INIT; } \ - else { /* nothing happens? CC_STATUS_INIT; */} \ - if (cc_status.value1 && GET_CODE (cc_status.value1) == REG \ - && cc_status.value2 \ - && reg_overlap_mentioned_p (cc_status.value1, cc_status.value2)) \ - abort (); \ -} - -/* Describe the costs of the following register moves which are discouraged: - 1.) Moves between the Floating point registers and the frame pointer and stack pointer - 2.) Moves between the stack pointer and the frame pointer - 3.) Moves between the floating point and general registers */ - -#define REGISTER_MOVE_COST(CLASS1, CLASS2) \ - ((((CLASS1) == FLOAT_REGS && ((CLASS2) == STACK_POINTER_REG || (CLASS2) == FRAME_POINTER_REG)) \ - || ((CLASS2) == FLOAT_REGS && ((CLASS1) == STACK_POINTER_REG || (CLASS1) == FRAME_POINTER_REG)) \ - || ((CLASS1) == STACK_POINTER_REG && (CLASS2) == FRAME_POINTER_REG) \ - || ((CLASS2) == STACK_POINTER_REG && (CLASS1) == FRAME_POINTER_REG) \ - || ((CLASS1) == FLOAT_REGS && (CLASS2) == GENERAL_REGS) \ - || ((CLASS1) == GENERAL_REGS && (CLASS2) == FLOAT_REGS)) \ - ? 4 : 2) - -#define OUTPUT_JUMP(NORMAL, NO_OV) \ -{ if (cc_status.flags & CC_NO_OVERFLOW) \ - return NO_OV; \ - return NORMAL; } - -/* Dividing the output into sections */ - -/* Output before read-only data. */ - -#define TEXT_SECTION_ASM_OP ".text" - -/* Output before writable data. */ - -#define DATA_SECTION_ASM_OP ".data" - -/* Define the output Assembly Language */ - -/* Output at beginning of assembler file. */ - -#define ASM_FILE_START(FILE) fprintf (FILE, "#NO_APP\n"); - -/* 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 of Data */ - -/* This is how to output an assembler line defining a `double' constant. */ - -#define ASM_OUTPUT_DOUBLE(FILE,VALUE) \ - fprintf (FILE, "\t.double 0d%.20e\n", (VALUE)) - -/* This is how to output an assembler line defining a `float' constant. */ - -#define ASM_OUTPUT_FLOAT(FILE,VALUE) \ - fprintf (FILE, "\t.float 0f%.20e\n", (VALUE)) - -/* This is how to output an assembler line defining an `int' constant. */ - -#define ASM_OUTPUT_INT(FILE,VALUE) \ -( fprintf (FILE, "\t.long "), \ - output_addr_const (FILE, (VALUE)), \ - fprintf (FILE, "\n")) - -/* Likewise for `char' and `short' constants. */ - -#define ASM_OUTPUT_SHORT(FILE,VALUE) \ -( fprintf (FILE, "\t.word "), \ - 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)) - -/* This is how to output an assembler line defining an external/static - address which is not in tree format (for collect.c). */ - -#define ASM_OUTPUT_LABELREF_AS_INT(STREAM, NAME) \ -do { \ - fprintf (STREAM, "\t.long\t"); \ - ASM_OUTPUT_LABELREF (STREAM, NAME); \ - fprintf (STREAM, "\n"); \ -} 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, "\tmovd %s,tos\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, "\tmovd tos,%s\n", reg_names[REGNO]) - -/* 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", \ - "f0", "f1", "f2", "f3", "f4", "f5", "f6", "f7", \ - "fp", "sp"} - -/* How to renumber registers for dbx and gdb. - NS32000 may need more change in the numeration. */ - -#define DBX_REGISTER_NUMBER(REGNO) ((REGNO < 8) ? (REGNO)+4 : (REGNO)) - -/* 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. */ - -#ifndef COLLECT -#define ASM_OUTPUT_LABEL(FILE,NAME) \ - do { assemble_name (FILE, NAME); fputs (":\n", FILE); } while (0) -#else -#define ASM_OUTPUT_LABEL(STREAM,NAME) \ -do { \ - fprintf (STREAM, "%s:\n", NAME); \ -} while (0) -#endif - -/* This is how to output a command to make the user-level label named NAME - defined for reference from other files. */ - -#ifndef COLLECT -#define ASM_GLOBALIZE_LABEL(FILE,NAME) \ - do { fputs (".globl ", FILE); assemble_name (FILE, NAME); fputs ("\n", FILE);} while (0) -#else -#define ASM_GLOBALIZE_LABEL(STREAM,NAME) \ -do { \ - fprintf (STREAM, "\t.globl\t%s\n", NAME); \ -} while (0) -#endif - -/* 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 align the code that follows an unconditional branch. - Note that 0xa2 is a no-op. */ - -#define ASM_OUTPUT_ALIGN_CODE(FILE) \ - fprintf (FILE, "\t.align 2,0xa2\n") - -/* This is how to output an element of a case-vector that is absolute. - (The ns32k does not use such vectors, - but we must define this macro anyway.) */ - -#define ASM_OUTPUT_ADDR_VEC_ELT(FILE, VALUE) \ - fprintf (FILE, "\t.long L%d\n", VALUE) - -/* This is how to output an element of a case-vector that is relative. */ -/* ** Notice that the second element is LI format! */ -#define ASM_OUTPUT_ADDR_DIFF_ELT(FILE, VALUE, REL) \ - fprintf (FILE, "\t.long L%d-LI%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) \ - fprintf (FILE, "\t.align %d\n", (LOG)) - -#define ASM_OUTPUT_SKIP(FILE,SIZE) \ - fprintf (FILE, "\t.space %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) \ -( fputs (".comm ", (FILE)), \ - assemble_name ((FILE), (NAME)), \ - fprintf ((FILE), ",%u\n", (ROUNDED))) - -/* This says how to output an assembler line - to define a local common symbol. */ - -#define ASM_OUTPUT_LOCAL(FILE, NAME, SIZE, ROUNDED) \ -( fputs (".lcomm ", (FILE)), \ - assemble_name ((FILE), (NAME)), \ - fprintf ((FILE), ",%u\n", (ROUNDED))) - -/* 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))) - -/* 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 an instruction operand X on file FILE. - CODE is the code from the %-spec that requested printing this operand; - if `%z3' was used to print operand 3, then CODE is 'z'. */ - -/* %$ means print the prefix for an immediate operand. */ - -#define PRINT_OPERAND_PUNCT_VALID_P(CODE) \ - ((CODE) == '$' || (CODE) == '?') - -#define PRINT_OPERAND(FILE, X, CODE) print_operand(FILE, X, CODE) - -/* Print a memory operand whose address is X, on file FILE. */ - -#define PRINT_OPERAND_ADDRESS(FILE, ADDR) print_operand_address(FILE, ADDR) - -/* Define functions in ns32k.c and used in insn-output.c. */ - -extern char *output_move_double (); -extern char *output_shift_insn (); -extern char *output_move_dconst (); - -/* -Local variables: -version-control: t -End: -*/ |