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Diffstat (limited to 'gcc/config/m88k/m88k.h')
| -rw-r--r-- | gcc/config/m88k/m88k.h | 2635 |
1 files changed, 0 insertions, 2635 deletions
diff --git a/gcc/config/m88k/m88k.h b/gcc/config/m88k/m88k.h deleted file mode 100644 index 1fb20dbb9c4..00000000000 --- a/gcc/config/m88k/m88k.h +++ /dev/null @@ -1,2635 +0,0 @@ -/* Definitions of target machine for GNU compiler for - Motorola m88100 in an 88open OCS/BCS environment. - Copyright (C) 1988, 89, 90, 91, 93, 94, 1995 Free Software Foundation, Inc. - Contributed by Michael Tiemann (tiemann@cygnus.com) - Enhanced by Michael Meissner (meissner@cygnus.com) - Version 2 port by Tom Wood (twood@pets.sps.mot.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. */ - -/* The m88100 port of GNU CC adheres to the various standards from 88open. - These documents are available by writing: - - 88open Consortium Ltd. - 100 Homeland Court, Suite 800 - San Jose, CA 95112 - (408) 436-6600 - - In brief, the current standards are: - - Binary Compatibility Standard, Release 1.1A, May 1991 - This provides for portability of application-level software at the - executable level for AT&T System V Release 3.2. - - Object Compatibility Standard, Release 1.1A, May 1991 - This provides for portability of application-level software at the - object file and library level for C, Fortran, and Cobol, and again, - largely for SVR3. - - Under development are standards for AT&T System V Release 4, based on the - [generic] System V Application Binary Interface from AT&T. These include: - - System V Application Binary Interface, Motorola 88000 Processor Supplement - Another document from AT&T for SVR4 specific to the m88100. - Available from Prentice Hall. - - System V Application Binary Interface, Motorola 88000 Processor Supplement, - Release 1.1, Draft H, May 6, 1991 - A proposed update to the AT&T document from 88open. - - System V ABI Implementation Guide for the M88000 Processor, - Release 1.0, January 1991 - A companion ABI document from 88open. */ - -/* Other *.h files in config/m88k include this one and override certain items. - Currently these are sysv3.h, sysv4.h, dgux.h, dolph.h, tekXD88.h, and luna.h. - Additionally, sysv4.h and dgux.h include svr4.h first. All other - m88k targets except luna.h are based on svr3.h. */ - -/* Choose SVR3 as the default. */ -#if !defined(DBX_DEBUGGING_INFO) && !defined(DWARF_DEBUGGING_INFO) -#include "svr3.h" -#endif - -/* External types used. */ - -/* What instructions are needed to manufacture an integer constant. */ -enum m88k_instruction { - m88k_zero, - m88k_or, - m88k_subu, - m88k_or_lo16, - m88k_or_lo8, - m88k_set, - m88k_oru_hi16, - m88k_oru_or -}; - -/* Which processor to schedule for. The elements of the enumeration - must match exactly the cpu attribute in the m88k.md machine description. */ - -enum processor_type { - PROCESSOR_M88100, - PROCESSOR_M88110, - PROCESSOR_M88000, -}; - -/* Recast the cpu class to be the cpu attribute. */ -#define m88k_cpu_attr ((enum attr_cpu)m88k_cpu) - -/* External variables/functions defined in m88k.c. */ - -extern char *m88k_pound_sign; -extern char *m88k_short_data; -extern char *m88k_version; -extern char m88k_volatile_code; - -extern unsigned m88k_gp_threshold; -extern int m88k_prologue_done; -extern int m88k_function_number; -extern int m88k_fp_offset; -extern int m88k_stack_size; -extern int m88k_case_index; - -extern struct rtx_def *m88k_compare_reg; -extern struct rtx_def *m88k_compare_op0; -extern struct rtx_def *m88k_compare_op1; - -extern enum processor_type m88k_cpu; - -extern int null_prologue (); -extern int integer_ok_for_set (); -extern int m88k_debugger_offset (); - - -extern void emit_bcnd (); -extern void expand_block_move (); -extern void m88k_layout_frame (); -extern void m88k_expand_prologue (); -extern void m88k_begin_prologue (); -extern void m88k_end_prologue (); -extern void m88k_expand_epilogue (); -extern void m88k_begin_epilogue (); -extern void m88k_end_epilogue (); -extern void output_function_profiler (); -extern void output_function_block_profiler (); -extern void output_block_profiler (); -extern void output_file_start (); -extern void output_ascii (); -extern void output_label (); -extern void print_operand (); -extern void print_operand_address (); - -extern char *output_load_const_int (); -extern char *output_load_const_float (); -extern char *output_load_const_double (); -extern char *output_load_const_dimode (); -extern char *output_and (); -extern char *output_ior (); -extern char *output_xor (); -extern char *output_call (); - -extern struct rtx_def *emit_test (); -extern struct rtx_def *legitimize_address (); -extern struct rtx_def *legitimize_operand (); -extern struct rtx_def *m88k_function_arg (); -extern struct rtx_def *m88k_builtin_saveregs (); - -extern enum m88k_instruction classify_integer (); - -/* external variables defined elsewhere in the compiler */ - -extern int target_flags; /* -m compiler switches */ -extern int frame_pointer_needed; /* current function has a FP */ -extern int current_function_pretend_args_size; /* args size without ... */ -extern int flag_delayed_branch; /* -fdelayed-branch */ -extern int flag_pic; /* -fpic */ -extern char * reg_names[]; - -/* Specify the default monitors. The meaning of these values can - be obtained by doing "grep MONITOR_GCC *m88k*". Generally, the - values downward from 0x8000 are tests that will soon go away. - values upward from 0x1 are generally useful tests that will remain. */ - -#ifndef MONITOR_GCC -#define MONITOR_GCC 0 -#endif - -/*** Controlling the Compilation Driver, `gcc' ***/ -/* Show we can debug even without a frame pointer. */ -#define CAN_DEBUG_WITHOUT_FP - -/* If -m88100 is in effect, add -D__m88100__; similarly for -m88110. - Here, the CPU_DEFAULT is assumed to be -m88100. */ -#undef CPP_SPEC -#define CPP_SPEC "%{!m88000:%{!m88100:%{m88110:-D__m88110__}}} \ - %{!m88000:%{!m88110:-D__m88100__}}" - -/* LIB_SPEC, LINK_SPEC, and STARTFILE_SPEC defined in svr3.h. - ASM_SPEC, ASM_FINAL_SPEC, LIB_SPEC, LINK_SPEC, and STARTFILE_SPEC redefined - in svr4.h. - CPP_SPEC, ASM_SPEC, ASM_FINAL_SPEC, LIB_SPEC, LINK_SPEC, and - STARTFILE_SPEC redefined in dgux.h. */ - -/*** Run-time Target Specification ***/ - -/* Names to predefine in the preprocessor for this target machine. - Redefined in sysv3.h, sysv4.h, dgux.h, and luna.h. */ -#define CPP_PREDEFINES "-Dm88000 -Dm88k -Dunix -D__CLASSIFY_TYPE__=2" - -#define TARGET_VERSION fprintf (stderr, " (%s%s)", \ - VERSION_INFO1, VERSION_INFO2) - -/* Print subsidiary information on the compiler version in use. - Redefined in sysv4.h, and luna.h. */ -#define VERSION_INFO1 "88open OCS/BCS, " -#ifndef VERSION_INFO2 -#define VERSION_INFO2 "$Revision: 1.66 $" -#endif - -#ifndef VERSION_STRING -#define VERSION_STRING version_string -#ifdef __STDC__ -#define TM_RCS_ID "@(#)" __FILE__ " $Revision: 1.66 $ " __DATE__ -#else -#define TM_RCS_ID "$What: <@(#) m88k.h,v 1.1.1.2.2.2> $" -#endif /* __STDC__ */ -#else -#define TM_RCS_ID "@(#)" __FILE__ " " VERSION_INFO2 " " __DATE__ -#endif /* VERSION_STRING */ - -/* Run-time compilation parameters selecting different hardware subsets. */ - -/* 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 MASK_88100 0x00000001 /* Target m88100 */ -#define MASK_88110 0x00000002 /* Target m88110 */ -#define MASK_88000 (MASK_88100 | MASK_88110) - -#define MASK_OCS_DEBUG_INFO 0x00000004 /* Emit .tdesc info */ -#define MASK_OCS_FRAME_POSITION 0x00000008 /* Debug frame = CFA, not r30 */ -#define MASK_SVR4 0x00000010 /* Target is AT&T System V.4 */ -#define MASK_SVR3 0x00000020 /* Target is AT&T System V.3 */ -#define MASK_NO_UNDERSCORES 0x00000040 /* Don't emit a leading `_' */ -#define MASK_BIG_PIC 0x00000080 /* PIC with large got-rel's -fPIC */ -#define MASK_TRAP_LARGE_SHIFT 0x00000100 /* Trap if shift not <= 31 */ -#define MASK_HANDLE_LARGE_SHIFT 0x00000200 /* Handle shift count >= 32 */ -#define MASK_CHECK_ZERO_DIV 0x00000400 /* Check for int div. by 0 */ -#define MASK_USE_DIV 0x00000800 /* No signed div. checks */ -#define MASK_IDENTIFY_REVISION 0x00001000 /* Emit ident, with GCC rev */ -#define MASK_WARN_PASS_STRUCT 0x00002000 /* Warn about passed structs */ -#define MASK_OPTIMIZE_ARG_AREA 0x00004000 /* Save stack space */ -#define MASK_NO_SERIALIZE_VOLATILE 0x00008000 /* Serialize volatile refs */ -#define MASK_EITHER_LARGE_SHIFT (MASK_TRAP_LARGE_SHIFT | \ - MASK_HANDLE_LARGE_SHIFT) -#define MASK_OMIT_LEAF_FRAME_POINTER 0x00020000 /* omit leaf frame pointers */ - - -#define TARGET_88100 ((target_flags & MASK_88000) == MASK_88100) -#define TARGET_88110 ((target_flags & MASK_88000) == MASK_88110) -#define TARGET_88000 ((target_flags & MASK_88000) == MASK_88000) - -#define TARGET_OCS_DEBUG_INFO (target_flags & MASK_OCS_DEBUG_INFO) -#define TARGET_OCS_FRAME_POSITION (target_flags & MASK_OCS_FRAME_POSITION) -#define TARGET_SVR4 (target_flags & MASK_SVR4) -#define TARGET_SVR3 (target_flags & MASK_SVR3) -#define TARGET_NO_UNDERSCORES (target_flags & MASK_NO_UNDERSCORES) -#define TARGET_BIG_PIC (target_flags & MASK_BIG_PIC) -#define TARGET_TRAP_LARGE_SHIFT (target_flags & MASK_TRAP_LARGE_SHIFT) -#define TARGET_HANDLE_LARGE_SHIFT (target_flags & MASK_HANDLE_LARGE_SHIFT) -#define TARGET_CHECK_ZERO_DIV (target_flags & MASK_CHECK_ZERO_DIV) -#define TARGET_USE_DIV (target_flags & MASK_USE_DIV) -#define TARGET_IDENTIFY_REVISION (target_flags & MASK_IDENTIFY_REVISION) -#define TARGET_WARN_PASS_STRUCT (target_flags & MASK_WARN_PASS_STRUCT) -#define TARGET_OPTIMIZE_ARG_AREA (target_flags & MASK_OPTIMIZE_ARG_AREA) -#define TARGET_SERIALIZE_VOLATILE (!(target_flags & MASK_NO_SERIALIZE_VOLATILE)) - -#define TARGET_EITHER_LARGE_SHIFT (target_flags & MASK_EITHER_LARGE_SHIFT) -#define TARGET_OMIT_LEAF_FRAME_POINTER (target_flags & MASK_OMIT_LEAF_FRAME_POINTER) - -/* Redefined in sysv3.h, sysv4.h, and dgux.h. */ -#define TARGET_DEFAULT (MASK_CHECK_ZERO_DIV) -#define CPU_DEFAULT MASK_88100 - -#define TARGET_SWITCHES \ - { \ - { "88110", MASK_88110 }, \ - { "88100", MASK_88100 }, \ - { "88000", MASK_88000 }, \ - { "ocs-debug-info", MASK_OCS_DEBUG_INFO }, \ - { "no-ocs-debug-info", -MASK_OCS_DEBUG_INFO }, \ - { "ocs-frame-position", MASK_OCS_FRAME_POSITION }, \ - { "no-ocs-frame-position", -MASK_OCS_FRAME_POSITION }, \ - { "svr4", MASK_SVR4 }, \ - { "svr3", -MASK_SVR4 }, \ - { "no-underscores", MASK_NO_UNDERSCORES }, \ - { "big-pic", MASK_BIG_PIC }, \ - { "trap-large-shift", MASK_TRAP_LARGE_SHIFT }, \ - { "handle-large-shift", MASK_HANDLE_LARGE_SHIFT }, \ - { "check-zero-division", MASK_CHECK_ZERO_DIV }, \ - { "no-check-zero-division", -MASK_CHECK_ZERO_DIV }, \ - { "use-div-instruction", MASK_USE_DIV }, \ - { "identify-revision", MASK_IDENTIFY_REVISION }, \ - { "warn-passed-structs", MASK_WARN_PASS_STRUCT }, \ - { "optimize-arg-area", MASK_OPTIMIZE_ARG_AREA }, \ - { "no-optimize-arg-area", -MASK_OPTIMIZE_ARG_AREA }, \ - { "no-serialize-volatile", MASK_NO_SERIALIZE_VOLATILE }, \ - { "serialize-volatile", -MASK_NO_SERIALIZE_VOLATILE }, \ - { "omit-leaf-frame-pointer", MASK_OMIT_LEAF_FRAME_POINTER }, \ - SUBTARGET_SWITCHES \ - /* Default switches */ \ - { "", TARGET_DEFAULT }, \ - } - -/* Redefined in dgux.h. */ -#define SUBTARGET_SWITCHES - -/* Macro to define table for command options with values. */ - -#define TARGET_OPTIONS { { "short-data-", &m88k_short_data }, \ - { "version-", &m88k_version } } - -/* Do any checking or such that is needed after processing the -m switches. */ - -#define OVERRIDE_OPTIONS \ - do { \ - register int i; \ - \ - if ((target_flags & MASK_88000) == 0) \ - target_flags |= CPU_DEFAULT; \ - \ - if (TARGET_88110) \ - { \ - target_flags |= MASK_USE_DIV; \ - target_flags &= ~MASK_CHECK_ZERO_DIV; \ - } \ - \ - m88k_cpu = (TARGET_88000 ? PROCESSOR_M88000 \ - : (TARGET_88100 ? PROCESSOR_M88100 : PROCESSOR_M88110)); \ - \ - if (TARGET_BIG_PIC) \ - flag_pic = 2; \ - \ - if ((target_flags & MASK_EITHER_LARGE_SHIFT) == MASK_EITHER_LARGE_SHIFT) \ - error ("-mtrap-large-shift and -mhandle-large-shift are incompatible");\ - \ - if (TARGET_SVR4) \ - { \ - for (i = 0; i < FIRST_PSEUDO_REGISTER; i++) \ - reg_names[i]--; \ - m88k_pound_sign = "#"; \ - } \ - else \ - { \ - target_flags |= MASK_SVR3; \ - target_flags &= ~MASK_SVR4; \ - } \ - \ - if (m88k_short_data) \ - { \ - char *p = m88k_short_data; \ - while (*p) \ - if (*p >= '0' && *p <= '9') \ - p++; \ - else \ - { \ - error ("Invalid option `-mshort-data-%s'", m88k_short_data); \ - break; \ - } \ - m88k_gp_threshold = atoi (m88k_short_data); \ - if (m88k_gp_threshold > 0x7fffffff) \ - error ("-mshort-data-%s is too large ", m88k_short_data); \ - if (flag_pic) \ - error ("-mshort-data-%s and PIC are incompatible", m88k_short_data); \ - } \ - } while (0) - -/*** Storage Layout ***/ - -/* Sizes in bits of the various types. */ -#define CHAR_TYPE_SIZE 8 -#define SHORT_TYPE_SIZE 16 -#define INT_TYPE_SIZE 32 -#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 this if most significant bit is lowest numbered - in instructions that operate on numbered bit-fields. - Somewhat arbitrary. It matches the bit field patterns. */ -#define BITS_BIG_ENDIAN 1 - -/* Define this if most significant byte of a word is the lowest numbered. - That is true on the m88000. */ -#define BYTES_BIG_ENDIAN 1 - -/* Define this if most significant word of a multiword number is the lowest - numbered. - For the m88000 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 68000, 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 - -/* Largest alignment for stack parameters (if greater than PARM_BOUNDARY). */ -#define MAX_PARM_BOUNDARY 64 - -/* Boundary (in *bits*) on which stack pointer should be aligned. */ -#define STACK_BOUNDARY 128 - -/* Allocation boundary (in *bits*) for the code of a function. On the - m88100, it is desirable to align to a cache line. However, SVR3 targets - only provided 8 byte alignment. The m88110 cache is small, so align - to an 8 byte boundary. Pack code tightly when compiling crtstuff.c. */ -#define FUNCTION_BOUNDARY (flag_inhibit_size_directive ? 32 : \ - (TARGET_88100 && TARGET_SVR4 ? 128 : 64)) - -/* No data type wants to be aligned rounder than this. */ -#define BIGGEST_ALIGNMENT 64 - -/* The best alignment to use in cases where we have a choice. */ -#define FASTEST_ALIGNMENT (TARGET_88100 ? 32 : 64) - -/* Make strings 4/8 byte 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 4/8 byte 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)) - -/* Alignment of field after `int : 0' in a structure. - Ignored with PCC_BITFIELD_TYPE_MATTERS. */ -/* #define EMPTY_FIELD_BOUNDARY 8 */ - -/* Every structure's size must be a multiple of this. */ -#define STRUCTURE_SIZE_BOUNDARY 8 - -/* Set this nonzero if move instructions will actually fail to work - when given unaligned data. */ -#define STRICT_ALIGNMENT 1 - -/* A bitfield declared as `int' forces `int' alignment for the struct. */ -#define PCC_BITFIELD_TYPE_MATTERS 1 - -/* Maximum size (in bits) to use for the largest integral type that - replaces a BLKmode type. */ -/* #define MAX_FIXED_MODE_SIZE 0 */ - -/* Check a `double' value for validity for a particular machine mode. - This is defined to avoid crashes outputting certain constants. - Since we output the number in hex, the assembler won't choke on it. */ -/* #define CHECK_FLOAT_VALUE(MODE,VALUE) */ - -/* A code distinguishing the floating point format of the target machine. */ -/* #define TARGET_FLOAT_FORMAT IEEE_FLOAT_FORMAT */ - -/*** 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. - - The m88100 has a General Register File (GRF) of 32 32-bit registers. - The m88110 adds an Extended Register File (XRF) of 32 80-bit registers. */ -#define FIRST_PSEUDO_REGISTER 64 -#define FIRST_EXTENDED_REGISTER 32 - -/* General notes on extended registers, their use and misuse. - - Possible good uses: - - spill area instead of memory. - -waste if only used once - - floating point calculations - -probably a waste unless we have run out of general purpose registers - - freeing up general purpose registers - -e.g. may be able to have more loop invariants if floating - point is moved into extended registers. - - - I've noticed wasteful moves into and out of extended registers; e.g. a load - into x21, then inside a loop a move into r24, then r24 used as input to - an fadd. Why not just load into r24 to begin with? Maybe the new cse.c - will address this. This wastes a move, but the load,store and move could - have been saved had extended registers been used throughout. - E.g. in the code following code, if z and xz are placed in extended - registers, there is no need to save preserve registers. - - long c=1,d=1,e=1,f=1,g=1,h=1,i=1,j=1,k; - - double z=0,xz=4.5; - - foo(a,b) - long a,b; - { - while (a < b) - { - k = b + c + d + e + f + g + h + a + i + j++; - z += xz; - a++; - } - printf("k= %d; z=%f;\n", k, z); - } - - I've found that it is possible to change the constraints (putting * before - the 'r' constraints int the fadd.ddd instruction) and get the entire - addition and store to go into extended registers. However, this also - forces simple addition and return of floating point arguments to a - function into extended registers. Not the correct solution. - - Found the following note in local-alloc.c which may explain why I can't - get both registers to be in extended registers since two are allocated in - local-alloc and one in global-alloc. Doesn't explain (I don't believe) - why an extended register is used instead of just using the preserve - register. - - from local-alloc.c: - We have provision to exempt registers, even when they are contained - within the block, that can be tied to others that are not contained in it. - This is so that global_alloc could process them both and tie them then. - But this is currently disabled since tying in global_alloc is not - yet implemented. - - The explanation of why the preserved register is not used is as follows, - I believe. The registers are being allocated in order. Tying is not - done so efficiently, so when it comes time to do the first allocation, - there are no registers left to use without spilling except extended - registers. Then when the next pseudo register needs a hard reg, there - are still no registers to be had for free, but this one must be a GRF - reg instead of an extended reg, so a preserve register is spilled. Thus - the move from extended to GRF is necessitated. I do not believe this can - be 'fixed' through the config/*m88k* files. - - gcc seems to sometimes make worse use of register allocation -- not counting - moves -- whenever extended registers are present. For example in the - whetstone, the simple for loop (slightly modified) - for(i = 1; i <= n1; i++) - { - x1 = (x1 + x2 + x3 - x4) * t; - x2 = (x1 + x2 - x3 + x4) * t; - x3 = (x1 - x2 + x3 + x4) * t; - x4 = (x1 + x2 + x3 + x4) * t; - } - in general loads the high bits of the addresses of x2-x4 and i into registers - outside the loop. Whenever extended registers are used, it loads all of - these inside the loop. My conjecture is that since the 88110 has so many - registers, and gcc makes no distinction at this point -- just that they are - not fixed, that in loop.c it believes it can expect a number of registers - to be available. Then it allocates 'too many' in local-alloc which causes - problems later. 'Too many' are allocated because a large portion of the - registers are extended registers and cannot be used for certain purposes - ( e.g. hold the address of a variable). When this loop is compiled on its - own, the problem does not occur. I don't know the solution yet, though it - is probably in the base sources. Possibly a different way to calculate - "threshold". */ - -/* 1 for registers that have pervasive standard uses and are not available - for the register allocator. Registers r14-r25 and x22-x29 are expected - to be preserved across function calls. - - On the 88000, the standard uses of the General Register File (GRF) are: - Reg 0 = Pseudo argument pointer (hardware fixed to 0). - Reg 1 = Subroutine return pointer (hardware). - Reg 2-9 = Parameter registers (OCS). - Reg 10 = OCS reserved temporary. - Reg 11 = Static link if needed [OCS reserved temporary]. - Reg 12 = Address of structure return (OCS). - Reg 13 = OCS reserved temporary. - Reg 14-25 = Preserved register set. - Reg 26-29 = Reserved by OCS and ABI. - Reg 30 = Frame pointer (Common use). - Reg 31 = Stack pointer. - - The following follows the current 88open UCS specification for the - Extended Register File (XRF): - Reg 32 = x0 Always equal to zero - Reg 33-53 = x1-x21 Temporary registers (Caller Save) - Reg 54-61 = x22-x29 Preserver registers (Callee Save) - Reg 62-63 = x30-x31 Reserved for future ABI use. - - Note: The current 88110 extended register mapping is subject to change. - The bias towards caller-save registers is based on the - presumption that memory traffic can potentially be reduced by - allowing the "caller" to save only that part of the register - which is actually being used. (i.e. don't do a st.x if a st.d - is sufficient). Also, in scientific code (a.k.a. Fortran), the - large number of variables defined in common blocks may require - that almost all registers be saved across calls anyway. */ - -#define FIXED_REGISTERS \ - {1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \ - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, \ - 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, \ - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, \ - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, \ - 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1} - -/* Macro to conditionally modify fixed_regs/call_used_regs. */ -#define CONDITIONAL_REGISTER_USAGE \ - { \ - if (! TARGET_88110) \ - { \ - register int i; \ - for (i = FIRST_EXTENDED_REGISTER; i < FIRST_PSEUDO_REGISTER; i++) \ - { \ - fixed_regs[i] = 1; \ - call_used_regs[i] = 1; \ - } \ - } \ - if (flag_pic) \ - { \ - /* Current hack to deal with -fpic -O2 problems. */ \ - fixed_regs[PIC_OFFSET_TABLE_REGNUM] = 1; \ - call_used_regs[PIC_OFFSET_TABLE_REGNUM] = 1; \ - global_regs[PIC_OFFSET_TABLE_REGNUM] = 1; \ - } \ - } - -/* These interfaces that don't apply to the m88000. */ -/* OVERLAPPING_REGNO_P(REGNO) 0 */ -/* INSN_CLOBBERS_REGNO_P(INSN, REGNO) 0 */ -/* PRESERVE_DEATH_INFO_REGNO_P(REGNO) 0 */ - -/* True if register is an extended register. */ -#define XRF_REGNO_P(N) ((N) < FIRST_PSEUDO_REGISTER && (N) >= FIRST_EXTENDED_REGISTER) - -/* 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 m88000, GRF registers hold 32-bits and XRF registers hold 80-bits. - An XRF register can hold any mode, but two GRF registers are required - for larger modes. */ -#define HARD_REGNO_NREGS(REGNO, MODE) \ - (XRF_REGNO_P (REGNO) \ - ? 1 : ((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. - - For double integers, we never put the value into an odd register so that - the operators don't run into the situation where the high part of one of - the inputs is the low part of the result register. (It's ok if the output - registers are the same as the input registers.) The XRF registers can - hold all modes, but only DF and SF modes can be manipulated in these - registers. The compiler should be allowed to use these as a fast spill - area. */ -#define HARD_REGNO_MODE_OK(REGNO, MODE) \ - (XRF_REGNO_P(REGNO) \ - ? (TARGET_88110 && GET_MODE_CLASS (MODE) == MODE_FLOAT) \ - : (((MODE) != DImode && (MODE) != DFmode && (MODE) != DCmode) \ - || ((REGNO) & 1) == 0)) - -/* 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 \ - || (TARGET_88110 && GET_MODE_CLASS (MODE1) == MODE_FLOAT)) \ - == ((MODE2) == DFmode || (MODE2) == DCmode || (MODE2) == DImode \ - || (TARGET_88110 && GET_MODE_CLASS (MODE2) == MODE_FLOAT))) - -/* Specify the registers used for certain standard purposes. - The values of these macros are register numbers. */ - -/* the m88000 pc isn't overloaded on a register that the compiler knows about. */ -/* #define PC_REGNUM */ - -/* Register to use for pushing function arguments. */ -#define STACK_POINTER_REGNUM 31 - -/* Base register for access to local variables of the function. */ -#define FRAME_POINTER_REGNUM 30 - -/* Base register for access to arguments of the function. */ -#define ARG_POINTER_REGNUM 0 - -/* Register used in cases where a temporary is known to be safe to use. */ -#define TEMP_REGNUM 10 - -/* Register in which static-chain is passed to a function. */ -#define STATIC_CHAIN_REGNUM 11 - -/* Register in which address to store a structure value - is passed to a function. */ -#define STRUCT_VALUE_REGNUM 12 - -/* Register to hold the addressing base for position independent - code access to data items. */ -#define PIC_OFFSET_TABLE_REGNUM 25 - -/* Order in which registers are preferred (most to least). Use temp - registers, then param registers top down. Preserve registers are - top down to maximize use of double memory ops for register save. - The 88open reserved registers (r26-r29 and x30-x31) may commonly be used - in most environments with the -fcall-used- or -fcall-saved- options. */ -#define REG_ALLOC_ORDER \ - { \ - 13, 12, 11, 10, 29, 28, 27, 26, \ - 62, 63, 9, 8, 7, 6, 5, 4, \ - 3, 2, 1, 53, 52, 51, 50, 49, \ - 48, 47, 46, 45, 44, 43, 42, 41, \ - 40, 39, 38, 37, 36, 35, 34, 33, \ - 25, 24, 23, 22, 21, 20, 19, 18, \ - 17, 16, 15, 14, 61, 60, 59, 58, \ - 57, 56, 55, 54, 30, 31, 0, 32} - -/* Order for leaf functions. */ -#define REG_LEAF_ALLOC_ORDER \ - { \ - 9, 8, 7, 6, 13, 12, 11, 10, \ - 29, 28, 27, 26, 62, 63, 5, 4, \ - 3, 2, 0, 53, 52, 51, 50, 49, \ - 48, 47, 46, 45, 44, 43, 42, 41, \ - 40, 39, 38, 37, 36, 35, 34, 33, \ - 25, 24, 23, 22, 21, 20, 19, 18, \ - 17, 16, 15, 14, 61, 60, 59, 58, \ - 57, 56, 55, 54, 30, 31, 1, 32} - -/* Switch between the leaf and non-leaf orderings. The purpose is to avoid - write-over scoreboard delays between caller and callee. */ -#define ORDER_REGS_FOR_LOCAL_ALLOC \ -{ \ - static int leaf[] = REG_LEAF_ALLOC_ORDER; \ - static int nonleaf[] = REG_ALLOC_ORDER; \ - \ - bcopy (regs_ever_live[1] ? nonleaf : leaf, reg_alloc_order, \ - FIRST_PSEUDO_REGISTER * sizeof (int)); \ -} - -/*** Register Classes ***/ - -/* 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. */ - -/* The m88000 hardware has two kinds of registers. In addition, we denote - the arg pointer as a separate class. */ - -enum reg_class { NO_REGS, AP_REG, XRF_REGS, GENERAL_REGS, AGRF_REGS, - XGRF_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", "AP_REG", "XRF_REGS", "GENERAL_REGS", \ - "AGRF_REGS", "XGRF_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 {{0x00000000, 0x00000000}, \ - {0x00000001, 0x00000000}, \ - {0x00000000, 0xffffffff}, \ - {0xfffffffe, 0x00000000}, \ - {0xffffffff, 0x00000000}, \ - {0xfffffffe, 0xffffffff}, \ - {0xffffffff, 0xffffffff}} - -/* 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) ? ((REGNO < 32) ? GENERAL_REGS : XRF_REGS) : AP_REG) - -/* The class value for index registers, and the one for base regs. */ -#define BASE_REG_CLASS AGRF_REGS -#define INDEX_REG_CLASS GENERAL_REGS - -/* Get reg_class from a letter such as appears in the machine description. - For the 88000, the following class/letter is defined for the XRF: - x - Extended register file */ -#define REG_CLASS_FROM_LETTER(C) \ - (((C) == 'x') ? XRF_REGS : NO_REGS) - -/* 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_BASE_P(REGNO) \ - ((REGNO) < FIRST_EXTENDED_REGISTER \ - || (unsigned) reg_renumber[REGNO] < FIRST_EXTENDED_REGISTER) -#define REGNO_OK_FOR_INDEX_P(REGNO) \ - (((REGNO) && (REGNO) < FIRST_EXTENDED_REGISTER) \ - || (unsigned) reg_renumber[REGNO] < FIRST_EXTENDED_REGISTER) - -/* 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. - Double constants should be in a register iff they can be made cheaply. */ -#define PREFERRED_RELOAD_CLASS(X,CLASS) \ - (CONSTANT_P(X) && (CLASS == XRF_REGS) ? NO_REGS : (CLASS)) - -/* Return the register class of a scratch register needed to load IN - into a register of class CLASS in MODE. On the m88k, when PIC, we - need a temporary when loading some addresses into a register. */ -#define SECONDARY_INPUT_RELOAD_CLASS(CLASS, MODE, IN) \ - ((flag_pic \ - && GET_CODE (IN) == CONST \ - && GET_CODE (XEXP (IN, 0)) == PLUS \ - && GET_CODE (XEXP (XEXP (IN, 0), 0)) == CONST_INT \ - && ! SMALL_INT (XEXP (XEXP (IN, 0), 1))) ? GENERAL_REGS : NO_REGS) - -/* Return the maximum number of consecutive registers - needed to represent mode MODE in a register of class CLASS. */ -#define CLASS_MAX_NREGS(CLASS, MODE) \ - ((((CLASS) == XRF_REGS) ? 1 \ - : ((GET_MODE_SIZE (MODE) + UNITS_PER_WORD - 1) / UNITS_PER_WORD))) - -/* Letters in the range `I' through `P' in a register constraint string can - be used to stand for particular ranges of immediate operands. The C - expression is true iff C is a known letter and VALUE is appropriate for - that letter. - - For the m88000, the following constants are used: - `I' requires a non-negative 16-bit value. - `J' requires a non-positive 16-bit value. - `K' requires a non-negative value < 32. - `L' requires a constant with only the upper 16-bits set. - `M' requires constant values that can be formed with `set'. - `N' requires a negative value. - `O' requires zero. - `P' requires a non-negative value. */ - -/* Quick tests for certain values. */ -#define SMALL_INT(X) (SMALL_INTVAL (INTVAL (X))) -#define SMALL_INTVAL(I) ((unsigned) (I) < 0x10000) -#define ADD_INT(X) (ADD_INTVAL (INTVAL (X))) -#define ADD_INTVAL(I) ((unsigned) (I) + 0xffff < 0x1ffff) -#define POWER_OF_2(I) ((I) && POWER_OF_2_or_0(I)) -#define POWER_OF_2_or_0(I) (((I) & ((unsigned)(I) - 1)) == 0) - -#define CONST_OK_FOR_LETTER_P(VALUE, C) \ - ((C) == 'I' ? SMALL_INTVAL (VALUE) \ - : (C) == 'J' ? SMALL_INTVAL (-(VALUE)) \ - : (C) == 'K' ? (unsigned)(VALUE) < 32 \ - : (C) == 'L' ? ((VALUE) & 0xffff) == 0 \ - : (C) == 'M' ? integer_ok_for_set (VALUE) \ - : (C) == 'N' ? (VALUE) < 0 \ - : (C) == 'O' ? (VALUE) == 0 \ - : (C) == 'P' ? (VALUE) >= 0 \ - : 0) - -/* Similar, but for floating constants, and defining letters G and H. - Here VALUE is the CONST_DOUBLE rtx itself. For the m88000, the - constraints are: `G' requires zero, and `H' requires one or two. */ -#define CONST_DOUBLE_OK_FOR_LETTER_P(VALUE, C) \ - ((C) == 'G' ? (CONST_DOUBLE_HIGH (VALUE) == 0 \ - && CONST_DOUBLE_LOW (VALUE) == 0) \ - : 0) - -/* Letters in the range `Q' through `U' in a register constraint string - may be defined in a machine-dependent fashion to stand for arbitrary - operand types. - - For the m88k, `Q' handles addresses in a call context. */ - -#define EXTRA_CONSTRAINT(OP, C) \ - ((C) == 'Q' ? symbolic_address_p (OP) : 0) - -/*** Describing Stack Layout ***/ - -/* Define this if pushing a word on the stack moves the stack pointer - to a smaller address. */ -#define STACK_GROWS_DOWNWARD - -/* Define this if the addresses of local variable slots are at negative - offsets from the frame pointer. */ -/* #define FRAME_GROWS_DOWNWARD */ - -/* Offset from the frame pointer to the first local variable slot to be - allocated. For the m88k, the debugger wants the return address (r1) - stored at location r30+4, and the previous frame pointer stored at - location r30. */ -#define STARTING_FRAME_OFFSET 8 - -/* If we generate an insn to push BYTES bytes, this says how many the - stack pointer really advances by. The m88k has no push instruction. */ -/* #define PUSH_ROUNDING(BYTES) */ - -/* 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 - -/* Offset from the stack pointer register to the first location at which - outgoing arguments are placed. Use the default value zero. */ -/* #define STACK_POINTER_OFFSET 0 */ - -/* Offset of first parameter from the argument pointer register value. - Using an argument pointer, this is 0 for the m88k. GCC knows - how to eliminate the argument pointer references if necessary. */ -#define FIRST_PARM_OFFSET(FNDECL) 0 - -/* Define this if functions should assume that stack space has been - allocated for arguments even when their values are passed in - registers. - - The value of this macro is the size, in bytes, of the area reserved for - arguments passed in registers. - - This space can either be allocated by the caller or be a part of the - machine-dependent stack frame: `OUTGOING_REG_PARM_STACK_SPACE' - says which. */ -#define REG_PARM_STACK_SPACE(FNDECL) 32 - -/* Define this macro if REG_PARM_STACK_SPACE is defined but stack - parameters don't skip the area specified by REG_PARM_STACK_SPACE. - Normally, when a parameter is not passed in registers, it is placed on - the stack beyond the REG_PARM_STACK_SPACE area. Defining this macro - suppresses this behavior and causes the parameter to be passed on the - stack in its natural location. */ -#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. If - `ACCUMULATE_OUTGOING_ARGS' is also defined, the only effect of this - macro is to determine whether the space is included in - `current_function_outgoing_args_size'. */ -/* #define OUTGOING_REG_PARM_STACK_SPACE */ - -/* Offset from the stack pointer register to an item dynamically allocated - on the stack, e.g., by `alloca'. - - The default value for this macro is `STACK_POINTER_OFFSET' plus the - length of the outgoing arguments. The default is correct for most - machines. See `function.c' for details. */ -/* #define STACK_DYNAMIC_OFFSET(FUNDECL) ... */ - -/* Value is the number of bytes of arguments automatically - popped when returning from a subroutine call. - FUNDECL is the declaration node of the function (as a tree), - FUNTYPE is the data type of the function (as a tree), - or for a library call it is an identifier node for the subroutine name. - SIZE is the number of bytes of arguments passed on the stack. */ -#define RETURN_POPS_ARGS(FUNDECL,FUNTYPE,SIZE) 0 - -/* 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. */ -#define FUNCTION_VALUE(VALTYPE, FUNC) \ - gen_rtx (REG, \ - TYPE_MODE (VALTYPE) == BLKmode ? SImode : TYPE_MODE (VALTYPE), \ - 2) - -/* Define this if it differs from FUNCTION_VALUE. */ -/* #define FUNCTION_OUTGOING_VALUE(VALTYPE, FUNC) ... */ - -/* Disable the promotion of some structures and unions to registers. */ -#define RETURN_IN_MEMORY(TYPE) \ - (TYPE_MODE (TYPE) == BLKmode \ - || ((TREE_CODE (TYPE) == RECORD_TYPE || TREE_CODE(TYPE) == UNION_TYPE) \ - && !(TYPE_MODE (TYPE) == SImode \ - || (TYPE_MODE (TYPE) == BLKmode \ - && TYPE_ALIGN (TYPE) == BITS_PER_WORD \ - && int_size_in_bytes (TYPE) == UNITS_PER_WORD)))) - -/* Don't default to pcc-struct-return, because we have already specified - exactly how to return structures in the RETURN_IN_MEMORY macro. */ -#define DEFAULT_PCC_STRUCT_RETURN 0 - -/* Define how to find the value returned by a library function - assuming the value has mode MODE. */ -#define LIBCALL_VALUE(MODE) gen_rtx (REG, MODE, 2) - -/* True if N is a possible register number for a function value - as seen by the caller. */ -#define FUNCTION_VALUE_REGNO_P(N) ((N) == 2) - -/* Determine whether a function argument is passed in a register, and - which register. See m88k.c. */ -#define FUNCTION_ARG(CUM, MODE, TYPE, NAMED) \ - m88k_function_arg (CUM, MODE, TYPE, NAMED) - -/* Define this if it differs from FUNCTION_ARG. */ -/* #define FUNCTION_INCOMING_ARG(CUM, MODE, TYPE, NAMED) ... */ - -/* A C expression for the number of words, at the beginning of an - argument, must be put in registers. The value must be zero for - arguments that are passed entirely in registers or that are entirely - pushed on the stack. */ -#define FUNCTION_ARG_PARTIAL_NREGS(CUM, MODE, TYPE, NAMED) (0) - -/* A C expression that indicates when an argument must be passed by - reference. If nonzero for an argument, a copy of that argument is - made in memory and a pointer to the argument is passed instead of the - argument itself. The pointer is passed in whatever way is appropriate - for passing a pointer to that type. */ -#define FUNCTION_ARG_PASS_BY_REFERENCE(CUM, MODE, TYPE, NAMED) (0) - -/* A C type for declaring a variable that is used as the first argument - of `FUNCTION_ARG' and other related values. It suffices to count - the number of words of argument 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. */ -#define INIT_CUMULATIVE_ARGS(CUM,FNTYPE,LIBNAME) ((CUM) = 0) - -/* A C statement (sans semicolon) to update the summarizer variable - CUM to advance past an argument in the argument list. The values - MODE, TYPE and NAMED describe that argument. Once this is done, - the variable CUM is suitable for analyzing the *following* argument - with `FUNCTION_ARG', etc. (TYPE is null for libcalls where that - information may not be available.) */ -#define FUNCTION_ARG_ADVANCE(CUM, MODE, TYPE, NAMED) \ - do { \ - enum machine_mode __mode = (TYPE) ? TYPE_MODE (TYPE) : (MODE); \ - if ((CUM & 1) \ - && (__mode == DImode || __mode == DFmode \ - || ((TYPE) && TYPE_ALIGN (TYPE) > BITS_PER_WORD))) \ - CUM++; \ - CUM += (((__mode != BLKmode) \ - ? GET_MODE_SIZE (MODE) : int_size_in_bytes (TYPE)) \ - + 3) / 4; \ - } while (0) - -/* True if N is a possible register number for function argument passing. - On the m88000, these are registers 2 through 9. */ -#define FUNCTION_ARG_REGNO_P(N) ((N) <= 9 && (N) >= 2) - -/* A C expression which determines whether, and in which direction, - to pad out an argument with extra space. The value should be of - type `enum direction': either `upward' to pad above the argument, - `downward' to pad below, or `none' to inhibit padding. - - This macro does not control the *amount* of padding; that is always - just enough to reach the next multiple of `FUNCTION_ARG_BOUNDARY'. */ -#define FUNCTION_ARG_PADDING(MODE, TYPE) \ - ((MODE) == BLKmode \ - || ((TYPE) && (TREE_CODE (TYPE) == RECORD_TYPE \ - || TREE_CODE (TYPE) == UNION_TYPE)) \ - ? upward : GET_MODE_BITSIZE (MODE) < PARM_BOUNDARY ? downward : none) - -/* If defined, a C expression that gives the alignment boundary, in bits, - of an argument with the specified mode and type. If it is not defined, - `PARM_BOUNDARY' is used for all arguments. */ -#define FUNCTION_ARG_BOUNDARY(MODE, TYPE) \ - (((TYPE) ? TYPE_ALIGN (TYPE) : GET_MODE_BITSIZE (MODE)) <= PARM_BOUNDARY \ - ? PARM_BOUNDARY : 2 * PARM_BOUNDARY) - -/* Generate necessary RTL for __builtin_saveregs(). - ARGLIST is the argument list; see expr.c. */ -#define EXPAND_BUILTIN_SAVEREGS(ARGLIST) m88k_builtin_saveregs (ARGLIST) - -/* Generate the assembly code for function entry. */ -#define FUNCTION_PROLOGUE(FILE, SIZE) m88k_begin_prologue(FILE, SIZE) - -/* Perform special actions at the point where the prologue ends. */ -#define FUNCTION_END_PROLOGUE(FILE) m88k_end_prologue(FILE) - -/* Output assembler code to FILE to increment profiler label # LABELNO - for profiling a function entry. Redefined in sysv3.h, sysv4.h and - dgux.h. */ -#define FUNCTION_PROFILER(FILE, LABELNO) \ - output_function_profiler (FILE, LABELNO, "mcount", 1) - -/* Maximum length in instructions of the code output by FUNCTION_PROFILER. */ -#define FUNCTION_PROFILER_LENGTH (5+3+1+5) - -/* Output assembler code to FILE to initialize basic-block profiling for - the current module. LABELNO is unique to each instance. */ -#define FUNCTION_BLOCK_PROFILER(FILE, LABELNO) \ - output_function_block_profiler (FILE, LABELNO) - -/* Maximum length in instructions of the code output by - FUNCTION_BLOCK_PROFILER. */ -#define FUNCTION_BLOCK_PROFILER_LENGTH (3+5+2+5) - -/* Output assembler code to FILE to increment the count associated with - the basic block number BLOCKNO. */ -#define BLOCK_PROFILER(FILE, BLOCKNO) output_block_profiler (FILE, BLOCKNO) - -/* Maximum length in instructions of the code output by BLOCK_PROFILER. */ -#define BLOCK_PROFILER_LENGTH 4 - -/* EXIT_IGNORE_STACK should be nonzero if, when returning from a function, - the stack pointer does not matter. The value is tested only in - functions that have frame pointers. - No definition is equivalent to always zero. */ -#define EXIT_IGNORE_STACK (1) - -/* Generate the assembly code for function exit. */ -#define FUNCTION_EPILOGUE(FILE, SIZE) m88k_end_epilogue(FILE, SIZE) - -/* Perform special actions at the point where the epilogue begins. */ -#define FUNCTION_BEGIN_EPILOGUE(FILE) m88k_begin_epilogue(FILE) - -/* 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 \ -(current_function_varargs \ - || (TARGET_OMIT_LEAF_FRAME_POINTER && !leaf_function_p ()) \ - || (write_symbols != NO_DEBUG && !TARGET_OCS_FRAME_POSITION)) - -/* Definitions for register eliminations. - - We have two registers that can be eliminated on the m88k. First, the - frame pointer register can often be eliminated in favor of the stack - pointer register. Secondly, the argument pointer register can always be - eliminated; it is replaced with either the stack or frame pointer. */ - -/* This is an array of structures. Each structure initializes one pair - of eliminable registers. The "from" register number is given first, - followed by "to". Eliminations of the same "from" register are listed - in order of preference. */ -#define ELIMINABLE_REGS \ -{{ ARG_POINTER_REGNUM, STACK_POINTER_REGNUM}, \ - { ARG_POINTER_REGNUM, FRAME_POINTER_REGNUM}, \ - { FRAME_POINTER_REGNUM, STACK_POINTER_REGNUM}} - -/* Given FROM and TO register numbers, say whether this elimination - is allowed. */ -#define CAN_ELIMINATE(FROM, TO) \ - (!((FROM) == FRAME_POINTER_REGNUM && FRAME_POINTER_REQUIRED)) - -/* Define the offset between two registers, one to be eliminated, and the other - its replacement, at the start of a routine. */ -#define INITIAL_ELIMINATION_OFFSET(FROM, TO, OFFSET) \ -{ m88k_layout_frame (); \ - if ((FROM) == FRAME_POINTER_REGNUM && (TO) == STACK_POINTER_REGNUM) \ - (OFFSET) = m88k_fp_offset; \ - else if ((FROM) == ARG_POINTER_REGNUM && (TO) == FRAME_POINTER_REGNUM) \ - (OFFSET) = m88k_stack_size - m88k_fp_offset; \ - else if ((FROM) == ARG_POINTER_REGNUM && (TO) == STACK_POINTER_REGNUM) \ - (OFFSET) = m88k_stack_size; \ - else \ - abort (); \ -} - -/*** Trampolines for Nested Functions ***/ - -/* Output assembler code for a block containing the constant parts - of a trampoline, leaving space for the variable parts. - - This block is placed on the stack and filled in. It is aligned - 0 mod 128 and those portions that are executed are constant. - This should work for instruction caches that have cache lines up - to the aligned amount (128 is arbitrary), provided no other code - producer is attempting to play the same game. This of course is - in violation of any number of 88open standards. */ - -#define TRAMPOLINE_TEMPLATE(FILE) \ -{ \ - char buf[256]; \ - static int labelno = 0; \ - labelno++; \ - ASM_GENERATE_INTERNAL_LABEL (buf, "LTRMP", labelno); \ - /* Save the return address (r1) in the static chain reg (r11). */ \ - fprintf (FILE, "\tor\t %s,%s,0\n", reg_names[11], reg_names[1]); \ - /* Locate this block; transfer to the next instruction. */ \ - fprintf (FILE, "\tbsr\t %s\n", &buf[1]); \ - ASM_OUTPUT_INTERNAL_LABEL (FILE, "LTRMP", labelno); \ - /* Save r10; use it as the relative pointer; restore r1. */ \ - fprintf (FILE, "\tst\t %s,%s,24\n", reg_names[10], reg_names[1]); \ - fprintf (FILE, "\tor\t %s,%s,0\n", reg_names[10], reg_names[1]); \ - fprintf (FILE, "\tor\t %s,%s,0\n", reg_names[1], reg_names[11]); \ - /* Load the function's address and go there. */ \ - fprintf (FILE, "\tld\t %s,%s,32\n", reg_names[11], reg_names[10]); \ - fprintf (FILE, "\tjmp.n\t %s\n", reg_names[11]); \ - /* Restore r10 and load the static chain register. */ \ - fprintf (FILE, "\tld.d\t %s,%s,24\n", reg_names[10], reg_names[10]); \ - /* Storage: r10 save area, static chain, function address. */ \ - ASM_OUTPUT_INT (FILE, const0_rtx); \ - ASM_OUTPUT_INT (FILE, const0_rtx); \ - ASM_OUTPUT_INT (FILE, const0_rtx); \ -} - -/* Length in units of the trampoline for entering a nested function. - This is really two components. The first 32 bytes are fixed and - must be copied; the last 12 bytes are just storage that's filled - in later. So for allocation purposes, it's 32+12 bytes, but for - initialization purposes, it's 32 bytes. */ - -#define TRAMPOLINE_SIZE (32+12) - -/* Alignment required for a trampoline. 128 is used to find the - beginning of a line in the instruction cache and to allow for - instruction cache lines of up to 128 bytes. */ - -#define TRAMPOLINE_ALIGNMENT 128 - -/* 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, 40)), FNADDR); \ - emit_move_insn (gen_rtx (MEM, SImode, plus_constant (TRAMP, 36)), CXT); \ -} - -/*** Library Subroutine Names ***/ - -/* Define this macro if GNU CC should generate calls to the System V - (and ANSI C) library functions `memcpy' and `memset' rather than - the BSD functions `bcopy' and `bzero'. */ -#define TARGET_MEM_FUNCTIONS - -/*** Addressing Modes ***/ - -#define EXTRA_CC_MODES CCEVENmode - -#define EXTRA_CC_NAMES "CCEVEN" - -#define SELECT_CC_MODE(OP,X,Y) CCmode - -/* #define HAVE_POST_INCREMENT */ -/* #define HAVE_POST_DECREMENT */ - -/* #define HAVE_PRE_DECREMENT */ -/* #define HAVE_PRE_INCREMENT */ - -/* Recognize any constant value that is a valid address. - When PIC, we do not accept an address that would require a scratch reg - to load into a register. */ - -#define CONSTANT_ADDRESS_P(X) \ - (GET_CODE (X) == LABEL_REF || GET_CODE (X) == SYMBOL_REF \ - || GET_CODE (X) == CONST_INT || GET_CODE (X) == HIGH \ - || (GET_CODE (X) == CONST \ - && ! (flag_pic && pic_address_needs_scratch (X)))) - - -/* Maximum number of registers that can appear in a valid memory address. */ -#define MAX_REGS_PER_ADDRESS 2 - -/* The condition for memory shift insns. */ -#define SCALED_ADDRESS_P(ADDR) \ - (GET_CODE (ADDR) == PLUS \ - && (GET_CODE (XEXP (ADDR, 0)) == MULT \ - || GET_CODE (XEXP (ADDR, 1)) == MULT)) - -/* Can the reference to X be made short? */ -#define SHORT_ADDRESS_P(X,TEMP) \ - ((TEMP) = (GET_CODE (X) == CONST ? get_related_value (X) : X), \ - ((TEMP) && GET_CODE (TEMP) == SYMBOL_REF && SYMBOL_REF_FLAG (TEMP))) - -/* 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. - - On the m88000, a legitimate address has the form REG, REG+REG, - REG+SMALLINT, REG+(REG*modesize) (REG[REG]), or SMALLINT. - - The register elimination process should deal with the argument - pointer and frame pointer changing to REG+SMALLINT. */ - -#define LEGITIMATE_INDEX_P(X, MODE) \ - ((GET_CODE (X) == CONST_INT \ - && SMALL_INT (X)) \ - || (REG_P (X) \ - && REG_OK_FOR_INDEX_P (X)) \ - || (GET_CODE (X) == MULT \ - && REG_P (XEXP (X, 0)) \ - && REG_OK_FOR_INDEX_P (XEXP (X, 0)) \ - && GET_CODE (XEXP (X, 1)) == CONST_INT \ - && INTVAL (XEXP (X, 1)) == GET_MODE_SIZE (MODE))) - -#define RTX_OK_FOR_BASE_P(X) \ - ((GET_CODE (X) == REG && REG_OK_FOR_BASE_P (X)) \ - || (GET_CODE (X) == SUBREG \ - && GET_CODE (SUBREG_REG (X)) == REG \ - && REG_OK_FOR_BASE_P (SUBREG_REG (X)))) - -#define RTX_OK_FOR_INDEX_P(X) \ - ((GET_CODE (X) == REG && REG_OK_FOR_INDEX_P (X)) \ - || (GET_CODE (X) == SUBREG \ - && GET_CODE (SUBREG_REG (X)) == REG \ - && REG_OK_FOR_INDEX_P (SUBREG_REG (X)))) - -#define GO_IF_LEGITIMATE_ADDRESS(MODE, X, ADDR) \ -{ \ - register rtx _x; \ - if (REG_P (X)) \ - { \ - if (REG_OK_FOR_BASE_P (X)) \ - goto ADDR; \ - } \ - else if (GET_CODE (X) == PLUS) \ - { \ - register rtx _x0 = XEXP (X, 0); \ - register rtx _x1 = XEXP (X, 1); \ - if ((flag_pic \ - && _x0 == pic_offset_table_rtx \ - && (flag_pic == 2 \ - ? RTX_OK_FOR_BASE_P (_x1) \ - : (GET_CODE (_x1) == SYMBOL_REF \ - || GET_CODE (_x1) == LABEL_REF))) \ - || (REG_P (_x0) \ - && (REG_OK_FOR_BASE_P (_x0) \ - && LEGITIMATE_INDEX_P (_x1, MODE))) \ - || (REG_P (_x1) \ - && (REG_OK_FOR_BASE_P (_x1) \ - && LEGITIMATE_INDEX_P (_x0, MODE)))) \ - goto ADDR; \ - } \ - else if (GET_CODE (X) == LO_SUM) \ - { \ - register rtx _x0 = XEXP (X, 0); \ - register rtx _x1 = XEXP (X, 1); \ - if (((REG_P (_x0) \ - && REG_OK_FOR_BASE_P (_x0)) \ - || (GET_CODE (_x0) == SUBREG \ - && REG_P (SUBREG_REG (_x0)) \ - && REG_OK_FOR_BASE_P (SUBREG_REG (_x0)))) \ - && CONSTANT_P (_x1)) \ - goto ADDR; \ - } \ - else if (GET_CODE (X) == CONST_INT \ - && SMALL_INT (X)) \ - goto ADDR; \ - else if (SHORT_ADDRESS_P (X, _x)) \ - goto ADDR; \ -} - -/* 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. Not the argument pointer. */ -#define REG_OK_FOR_INDEX_P(X) \ - (!XRF_REGNO_P(REGNO (X))) -/* 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) (REG_OK_FOR_INDEX_P (X)) - -#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 - -/* 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. */ - -/* On the m88000, change REG+N into REG+REG, and REG+(X*Y) into REG+REG. */ - -#define LEGITIMIZE_ADDRESS(X,OLDX,MODE,WIN) \ -{ \ - if (GET_CODE (X) == PLUS && CONSTANT_ADDRESS_P (XEXP (X, 1))) \ - (X) = gen_rtx (PLUS, SImode, XEXP (X, 0), \ - copy_to_mode_reg (SImode, XEXP (X, 1))); \ - if (GET_CODE (X) == PLUS && CONSTANT_ADDRESS_P (XEXP (X, 0))) \ - (X) = gen_rtx (PLUS, SImode, XEXP (X, 1), \ - copy_to_mode_reg (SImode, XEXP (X, 0))); \ - if (GET_CODE (X) == PLUS && GET_CODE (XEXP (X, 0)) == MULT) \ - (X) = gen_rtx (PLUS, SImode, XEXP (X, 1), \ - force_operand (XEXP (X, 0), 0)); \ - if (GET_CODE (X) == PLUS && GET_CODE (XEXP (X, 1)) == MULT) \ - (X) = gen_rtx (PLUS, SImode, XEXP (X, 0), \ - force_operand (XEXP (X, 1), 0)); \ - if (GET_CODE (X) == PLUS && GET_CODE (XEXP (X, 0)) == PLUS) \ - (X) = gen_rtx (PLUS, Pmode, force_operand (XEXP (X, 0), NULL_RTX),\ - XEXP (X, 1)); \ - if (GET_CODE (X) == PLUS && GET_CODE (XEXP (X, 1)) == PLUS) \ - (X) = gen_rtx (PLUS, Pmode, XEXP (X, 0), \ - force_operand (XEXP (X, 1), NULL_RTX)); \ - if (GET_CODE (X) == SYMBOL_REF || GET_CODE (X) == CONST \ - || GET_CODE (X) == LABEL_REF) \ - (X) = legitimize_address (flag_pic, X, 0, 0); \ - if (memory_address_p (MODE, X)) \ - goto WIN; } - -/* Go to LABEL if ADDR (a legitimate address expression) - has an effect that depends on the machine mode it is used for. - On the the m88000 this is never true. */ - -#define GO_IF_MODE_DEPENDENT_ADDRESS(ADDR,LABEL) - -/* 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) - -/* Define this, so that when PIC, reload won't try to reload invalid - addresses which require two reload registers. */ - -#define LEGITIMATE_PIC_OPERAND_P(X) (! pic_address_needs_scratch (X)) - - -/*** Condition Code Information ***/ - -/* C code for a data type which is used for declaring the `mdep' - component of `cc_status'. It defaults to `int'. */ -/* #define CC_STATUS_MDEP int */ - -/* A C expression to initialize the `mdep' field to "empty". */ -/* #define CC_STATUS_MDEP_INIT (cc_status.mdep = 0) */ - -/* Macro to zap the normal portions of CC_STATUS, but leave the - machine dependent parts (ie, literal synthesis) alone. */ -/* #define CC_STATUS_INIT_NO_MDEP \ - (cc_status.flags = 0, cc_status.value1 = 0, cc_status.value2 = 0) */ - -/* When using a register to hold the condition codes, the cc_status - mechanism cannot be used. */ -#define NOTICE_UPDATE_CC(EXP, INSN) (0) - -/*** Miscellaneous Parameters ***/ - -/* Define the codes that are matched by predicates in m88k.c. */ -#define PREDICATE_CODES \ - {"move_operand", {SUBREG, REG, CONST_INT, LO_SUM, MEM}}, \ - {"call_address_operand", {SUBREG, REG, SYMBOL_REF, LABEL_REF, CONST}}, \ - {"arith_operand", {SUBREG, REG, CONST_INT}}, \ - {"arith5_operand", {SUBREG, REG, CONST_INT}}, \ - {"arith32_operand", {SUBREG, REG, CONST_INT}}, \ - {"arith64_operand", {SUBREG, REG, CONST_INT}}, \ - {"int5_operand", {CONST_INT}}, \ - {"int32_operand", {CONST_INT}}, \ - {"add_operand", {SUBREG, REG, CONST_INT}}, \ - {"reg_or_bbx_mask_operand", {SUBREG, REG, CONST_INT}}, \ - {"real_or_0_operand", {SUBREG, REG, CONST_DOUBLE}}, \ - {"reg_or_0_operand", {SUBREG, REG, CONST_INT}}, \ - {"relop", {EQ, NE, LT, LE, GE, GT, LTU, LEU, GEU, GTU}}, \ - {"even_relop", {EQ, LT, GT, LTU, GTU}}, \ - {"odd_relop", { NE, LE, GE, LEU, GEU}}, \ - {"partial_ccmode_register_operand", { SUBREG, REG}}, \ - {"relop_no_unsigned", {EQ, NE, LT, LE, GE, GT}}, \ - {"equality_op", {EQ, NE}}, \ - {"pc_or_label_ref", {PC, LABEL_REF}}, - -/* The case table contains either words or branch instructions. This says - which. We always claim that the vector is PC-relative. It is position - independent when -fpic is used. */ -#define CASE_VECTOR_INSNS (TARGET_88100 || flag_pic) - -/* 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 - -/* Define this macro if jump-tables should contain relative addresses. */ -#define CASE_VECTOR_PC_RELATIVE - -/* Define this if control falls through a `case' insn when the index - value is out of range. This means the specified default-label is - actually ignored by the `case' insn proper. */ -/* #define CASE_DROPS_THROUGH */ - -/* Define this to be the smallest number of different values for which it - is best to use a jump-table instead of a tree of conditional branches. - The default is 4 for machines with a casesi instruction and 5 otherwise. - The best 88110 number is around 7, though the exact number isn't yet - known. A third alternative for the 88110 is to use a binary tree of - bb1 instructions on bits 2/1/0 if the range is dense. This may not - win very much though. */ -#define CASE_VALUES_THRESHOLD (TARGET_88100 ? 4 : 7) - -/* 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 - -/* The 88open ABI says size_t is unsigned int. */ -#define SIZE_TYPE "unsigned int" - -/* Allow and ignore #sccs directives */ -#define SCCS_DIRECTIVE - -/* Handle #pragma pack and sometimes #pragma weak. */ -#define HANDLE_SYSV_PRAGMA - -/* Tell when to handle #pragma weak. This is only done for V.4. */ -#define SUPPORTS_WEAK TARGET_SVR4 - -/* Max number of bytes we can move from memory to memory - in one reasonably fast instruction. */ -#define MOVE_MAX 8 - -/* Define if normal loads of shorter-than-word items from memory clears - the rest of the bigs in the register. */ -#define BYTE_LOADS_ZERO_EXTEND - -/* Zero if access to memory by bytes is faster. */ -#define SLOW_BYTE_ACCESS 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 - -/* Define this if addresses of constant functions - shouldn't be put through pseudo regs where they can be cse'd. - Desirable on machines where ordinary constants are expensive - but a CALL with constant address is cheap. */ -#define NO_FUNCTION_CSE - -/* Define this macro if an argument declared as `char' or - `short' in a prototype should actually be passed as an - `int'. In addition to avoiding errors in certain cases of - mismatch, it also makes for better code on certain machines. */ -#define PROMOTE_PROTOTYPES - -/* Define this macro if a float function always returns float - (even in traditional mode). Redefined in luna.h. */ -#define TRADITIONAL_RETURN_FLOAT - -/* 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 word address (for indexing purposes) - so give the MEM rtx word mode. */ -#define FUNCTION_MODE SImode - -/* A barrier will be aligned so account for the possible expansion. - A volatile load may be preceded by a serializing instruction. - Account for profiling code output at NOTE_INSN_PROLOGUE_END. - Account for block profiling code at basic block boundaries. */ -#define ADJUST_INSN_LENGTH(RTX, LENGTH) \ - if (GET_CODE (RTX) == BARRIER \ - || (TARGET_SERIALIZE_VOLATILE \ - && GET_CODE (RTX) == INSN \ - && GET_CODE (PATTERN (RTX)) == SET \ - && ((GET_CODE (SET_SRC (PATTERN (RTX))) == MEM \ - && MEM_VOLATILE_P (SET_SRC (PATTERN (RTX))))))) \ - LENGTH += 1; \ - else if (GET_CODE (RTX) == NOTE \ - && NOTE_LINE_NUMBER (RTX) == NOTE_INSN_PROLOGUE_END) \ - { \ - if (profile_block_flag) \ - LENGTH += FUNCTION_BLOCK_PROFILER_LENGTH; \ - if (profile_flag) \ - LENGTH += (FUNCTION_PROFILER_LENGTH + REG_PUSH_LENGTH \ - + REG_POP_LENGTH); \ - } \ - else if (profile_block_flag \ - && (GET_CODE (RTX) == CODE_LABEL \ - || GET_CODE (RTX) == JUMP_INSN \ - || (GET_CODE (RTX) == INSN \ - && GET_CODE (PATTERN (RTX)) == SEQUENCE \ - && GET_CODE (XVECEXP (PATTERN (RTX), 0, 0)) == JUMP_INSN)))\ - LENGTH += BLOCK_PROFILER_LENGTH; - -/* Track the state of the last volatile memory reference. Clear the - state with CC_STATUS_INIT for now. */ -#define CC_STATUS_INIT m88k_volatile_code = '\0' - -/* 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. - - We assume that any 16 bit integer can easily be recreated, so we - indicate 0 cost, in an attempt to get GCC not to optimize things - like comparison against a constant. - - The cost of CONST_DOUBLE is zero (if it can be placed in an insn, it - is as good as a register; since it can't be placed in any insn, it - won't do anything in cse, but it will cause expand_binop to pass the - constant to the define_expands). */ -#define CONST_COSTS(RTX,CODE,OUTER_CODE) \ - case CONST_INT: \ - if (SMALL_INT (RTX)) \ - return 0; \ - else if (SMALL_INTVAL (- INTVAL (RTX))) \ - return 2; \ - else if (classify_integer (SImode, INTVAL (RTX)) != m88k_oru_or) \ - return 4; \ - return 7; \ - case HIGH: \ - return 2; \ - case CONST: \ - case LABEL_REF: \ - case SYMBOL_REF: \ - if (flag_pic) \ - return (flag_pic == 2) ? 11 : 8; \ - return 5; \ - case CONST_DOUBLE: \ - return 0; - -/* Provide the costs of an addressing mode that contains ADDR. - If ADDR is not a valid address, its cost is irrelevant. - REG+REG is made slightly more expensive because it might keep - a register live for longer than we might like. */ -#define ADDRESS_COST(ADDR) \ - (GET_CODE (ADDR) == REG ? 1 : \ - GET_CODE (ADDR) == LO_SUM ? 1 : \ - GET_CODE (ADDR) == HIGH ? 2 : \ - GET_CODE (ADDR) == MULT ? 1 : \ - GET_CODE (ADDR) != PLUS ? 4 : \ - (REG_P (XEXP (ADDR, 0)) && REG_P (XEXP (ADDR, 1))) ? 2 : 1) - -/* Provide the costs of a rtl expression. This is in the body of a - switch on CODE. */ -#define RTX_COSTS(X,CODE,OUTER_CODE) \ - case MEM: \ - return COSTS_N_INSNS (2); \ - case MULT: \ - return COSTS_N_INSNS (3); \ - case DIV: \ - case UDIV: \ - case MOD: \ - case UMOD: \ - return COSTS_N_INSNS (38); - -/* A C expressions returning the cost of moving data of MODE from a register - to or from memory. This is more costly than between registers. */ -#define MEMORY_MOVE_COST(MODE) 4 - -/* Provide the cost of a branch. Exact meaning under development. */ -#define BRANCH_COST (TARGET_88100 ? 1 : 2) - -/* A C statement (sans semicolon) to update the integer variable COST - based on the relationship between INSN that is dependent on - DEP_INSN through the dependence LINK. The default is to make no - adjustment to COST. On the m88k, ignore the cost of anti- and - output-dependencies. On the m88100, a store can issue two cycles - before the value (not the address) has finished computing. */ -#define ADJUST_COST(INSN,LINK,DEP_INSN,COST) \ - do { \ - if (REG_NOTE_KIND (LINK) != 0) \ - (COST) = 0; /* Anti or output dependence. */ \ - else if (! TARGET_88100 \ - && recog_memoized (INSN) >= 0 \ - && get_attr_type (INSN) == TYPE_STORE \ - && SET_SRC (PATTERN (INSN)) == SET_DEST (PATTERN (DEP_INSN))) \ - (COST) -= 4; /* 88110 store reservation station. */ \ - } while (0) - -/* Define this to be nonzero if the character `$' should be allowed - by default in identifier names. */ -#define DOLLARS_IN_IDENTIFIERS 1 - -/* Do not break .stabs pseudos into continuations. */ -#define DBX_CONTIN_LENGTH 0 - -/*** Output of Assembler Code ***/ - -/* Control the assembler format that we output. */ - -/* Allow pseudo-ops to be overridden. Override these in svr[34].h. */ -#undef INT_ASM_OP -#undef ASCII_DATA_ASM_OP -#undef CONST_SECTION_ASM_OP -#undef CTORS_SECTION_ASM_OP -#undef DTORS_SECTION_ASM_OP -#undef INIT_SECTION_ASM_OP -#undef FINI_SECTION_ASM_OP -#undef TYPE_ASM_OP -#undef SIZE_ASM_OP -#undef SET_ASM_OP -#undef SKIP_ASM_OP -#undef COMMON_ASM_OP -#undef ALIGN_ASM_OP -#undef IDENT_ASM_OP - -/* These are used in varasm.c as well. */ -#define TEXT_SECTION_ASM_OP "text" -#define DATA_SECTION_ASM_OP "data" - -/* Other sections. */ -#define CONST_SECTION_ASM_OP (TARGET_SVR4 \ - ? "section\t .rodata,\"a\"" \ - : "section\t .rodata,\"x\"") -#define TDESC_SECTION_ASM_OP (TARGET_SVR4 \ - ? "section\t .tdesc,\"a\"" \ - : "section\t .tdesc,\"x\"") - -/* These must be constant strings for crtstuff.c. */ -#define CTORS_SECTION_ASM_OP "section\t .ctors,\"d\"" -#define DTORS_SECTION_ASM_OP "section\t .dtors,\"d\"" -#define INIT_SECTION_ASM_OP "section\t .init,\"x\"" -#define FINI_SECTION_ASM_OP "section\t .fini,\"x\"" - -/* These are pretty much common to all assemblers. */ -#define IDENT_ASM_OP "ident" -#define FILE_ASM_OP "file" -#define SECTION_ASM_OP "section" -#define SET_ASM_OP "def" -#define GLOBAL_ASM_OP "global" -#define ALIGN_ASM_OP "align" -#define SKIP_ASM_OP "zero" -#define COMMON_ASM_OP "comm" -#define BSS_ASM_OP "bss" -#define FLOAT_ASM_OP "float" -#define DOUBLE_ASM_OP "double" -#define INT_ASM_OP "word" -#define ASM_LONG INT_ASM_OP -#define SHORT_ASM_OP "half" -#define CHAR_ASM_OP "byte" -#define ASCII_DATA_ASM_OP "string" - -/* These are particular to the global pool optimization. */ -#define SBSS_ASM_OP "sbss" -#define SCOMM_ASM_OP "scomm" -#define SDATA_SECTION_ASM_OP "sdata" - -/* These are specific to PIC. */ -#define TYPE_ASM_OP "type" -#define SIZE_ASM_OP "size" -#ifndef AS_BUG_POUND_TYPE /* Faulty assemblers require @ rather than #. */ -#undef TYPE_OPERAND_FMT -#define TYPE_OPERAND_FMT "#%s" -#endif - -/* This is how we tell the assembler that a symbol is weak. */ - -#undef ASM_WEAKEN_LABEL -#define ASM_WEAKEN_LABEL(FILE,NAME) \ - do { fputs ("\tweak\t", FILE); assemble_name (FILE, NAME); \ - fputc ('\n', FILE); } while (0) - -/* These are specific to version 03.00 assembler syntax. */ -#define INTERNAL_ASM_OP "local" -#define VERSION_ASM_OP "version" -#define UNALIGNED_SHORT_ASM_OP "uahalf" -#define UNALIGNED_INT_ASM_OP "uaword" -#define PUSHSECTION_ASM_OP "section" -#define POPSECTION_ASM_OP "previous" - -/* These are specific to the version 04.00 assembler syntax. */ -#define REQUIRES_88110_ASM_OP "requires_88110" - -/* Output any initial stuff to the assembly file. Always put out - a file directive, even if not debugging. - - Immediately after putting out the file, put out a "sem.<value>" - declaration. This should be harmless on other systems, and - is used in DG/UX by the debuggers to supplement COFF. The - fields in the integer value are as follows: - - Bits Value Meaning - ---- ----- ------- - 0-1 0 No information about stack locations - 1 Auto/param locations are based on r30 - 2 Auto/param locations are based on CFA - - 3-2 0 No information on dimension order - 1 Array dims in sym table matches source language - 2 Array dims in sym table is in reverse order - - 5-4 0 No information about the case of global names - 1 Global names appear in the symbol table as in the source - 2 Global names have been converted to lower case - 3 Global names have been converted to upper case. */ - -#ifdef SDB_DEBUGGING_INFO -#define ASM_COFFSEM(FILE) \ - if (write_symbols == SDB_DEBUG) \ - { \ - fprintf (FILE, "\nsem.%x:\t\t; %s\n", \ - (((TARGET_OCS_FRAME_POSITION) ? 2 : 1) << 0) + (1 << 2) + (1 << 4),\ - (TARGET_OCS_FRAME_POSITION) \ - ? "frame is CFA, normal array dims, case unchanged" \ - : "frame is r30, normal array dims, case unchanged"); \ - } -#else -#define ASM_COFFSEM(FILE) -#endif - -/* Output the first line of the assembly file. Redefined in dgux.h. */ - -#define ASM_FIRST_LINE(FILE) \ - do { \ - if (TARGET_SVR4) \ - { \ - if (TARGET_88110) \ - fprintf (FILE, "\t%s\t \"%s\"\n", VERSION_ASM_OP, "04.00"); \ - else \ - fprintf (FILE, "\t%s\t \"%s\"\n", VERSION_ASM_OP, "03.00"); \ - } \ - } while (0) - -/* Override svr[34].h. */ -#undef ASM_FILE_START -#define ASM_FILE_START(FILE) \ - output_file_start (FILE, f_options, sizeof f_options / sizeof f_options[0], \ - W_options, sizeof W_options / sizeof W_options[0]) - -#undef ASM_FILE_END - -#define ASM_OUTPUT_SOURCE_FILENAME(FILE, NAME) \ - fprintf (FILE, "\t%s\t \"%s\"\n", FILE_ASM_OP, NAME) - -#ifdef SDB_DEBUGGING_INFO -#undef ASM_OUTPUT_SOURCE_LINE -#define ASM_OUTPUT_SOURCE_LINE(FILE, LINE) \ - if (m88k_prologue_done) \ - fprintf (FILE, "\n\tln\t %d\t\t\t\t; Real source line %d\n",\ - LINE - sdb_begin_function_line, LINE) -#endif - -/* Code to handle #ident directives. Override svr[34].h definition. */ -#undef ASM_OUTPUT_IDENT -#ifdef DBX_DEBUGGING_INFO -#define ASM_OUTPUT_IDENT(FILE, NAME) -#else -#define ASM_OUTPUT_IDENT(FILE, NAME) \ - output_ascii (FILE, IDENT_ASM_OP, 4000, NAME, strlen (NAME)); -#endif - -/* Output to assembler file text saying following lines - may contain character constants, extra white space, comments, etc. */ -#define ASM_APP_ON "" - -/* Output to assembler file text saying following lines - no longer contain unusual constructs. */ -#define ASM_APP_OFF "" - -/* Format the assembly opcode so that the arguments are all aligned. - The maximum instruction size is 8 characters (fxxx.xxx), so a tab and a - space will do to align the output. Abandon the output if a `%' is - encountered. */ -#define ASM_OUTPUT_OPCODE(STREAM, PTR) \ - { \ - int ch; \ - char *orig_ptr; \ - \ - for (orig_ptr = (PTR); \ - (ch = *(PTR)) && ch != ' ' && ch != '\t' && ch != '\n' && ch != '%'; \ - (PTR)++) \ - putc (ch, STREAM); \ - \ - if (ch == ' ' && orig_ptr != (PTR) && (PTR) - orig_ptr < 8) \ - putc ('\t', STREAM); \ - } - -/* How to refer to registers in assembler output. - This sequence is indexed by compiler's hard-register-number. - Updated by OVERRIDE_OPTIONS to include the # for version 03.00 syntax. */ - -#define REGISTER_NAMES \ - {"#r0"+1, "#r1"+1, "#r2"+1, "#r3"+1, "#r4"+1, "#r5"+1, "#r6"+1, "#r7"+1, \ - "#r8"+1, "#r9"+1, "#r10"+1,"#r11"+1,"#r12"+1,"#r13"+1,"#r14"+1,"#r15"+1,\ - "#r16"+1,"#r17"+1,"#r18"+1,"#r19"+1,"#r20"+1,"#r21"+1,"#r22"+1,"#r23"+1,\ - "#r24"+1,"#r25"+1,"#r26"+1,"#r27"+1,"#r28"+1,"#r29"+1,"#r30"+1,"#r31"+1,\ - "#x0"+1, "#x1"+1, "#x2"+1, "#x3"+1, "#x4"+1, "#x5"+1, "#x6"+1, "#x7"+1, \ - "#x8"+1, "#x9"+1, "#x10"+1,"#x11"+1,"#x12"+1,"#x13"+1,"#x14"+1,"#x15"+1,\ - "#x16"+1,"#x17"+1,"#x18"+1,"#x19"+1,"#x20"+1,"#x21"+1,"#x22"+1,"#x23"+1,\ - "#x24"+1,"#x25"+1,"#x26"+1,"#x27"+1,"#x28"+1,"#x29"+1,"#x30"+1,"#x31"+1} - -/* Define additional names for use in asm clobbers and asm declarations. - - We define the fake Condition Code register as an alias for reg 0 (which - is our `condition code' register), so that condition codes can easily - be clobbered by an asm. The carry bit in the PSR is now used. */ - -#define ADDITIONAL_REGISTER_NAMES {"psr", 0, "cc", 0} - -/* How to renumber registers for dbx and gdb. */ -#define DBX_REGISTER_NUMBER(REGNO) (REGNO) - -/* Tell when to declare ASM names. Override svr4.h to provide this hook. */ -#undef DECLARE_ASM_NAME -#define DECLARE_ASM_NAME TARGET_SVR4 - -/* Write the extra assembler code needed to declare a function properly. */ -#undef ASM_DECLARE_FUNCTION_NAME -#define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL) \ - do { \ - if (DECLARE_ASM_NAME) \ - { \ - fprintf (FILE, "\t%s\t ", TYPE_ASM_OP); \ - assemble_name (FILE, NAME); \ - putc (',', FILE); \ - fprintf (FILE, TYPE_OPERAND_FMT, "function"); \ - putc ('\n', FILE); \ - } \ - ASM_OUTPUT_LABEL(FILE, NAME); \ - } while (0) - -/* Write the extra assembler code needed to declare an object properly. */ -#undef ASM_DECLARE_OBJECT_NAME -#define ASM_DECLARE_OBJECT_NAME(FILE, NAME, DECL) \ - do { \ - if (DECLARE_ASM_NAME) \ - { \ - fprintf (FILE, "\t%s\t ", TYPE_ASM_OP); \ - assemble_name (FILE, NAME); \ - putc (',', FILE); \ - fprintf (FILE, TYPE_OPERAND_FMT, "object"); \ - putc ('\n', FILE); \ - size_directive_output = 0; \ - if (!flag_inhibit_size_directive && DECL_SIZE (DECL)) \ - { \ - size_directive_output = 1; \ - fprintf (FILE, "\t%s\t ", SIZE_ASM_OP); \ - assemble_name (FILE, NAME); \ - fprintf (FILE, ",%d\n", int_size_in_bytes (TREE_TYPE (DECL))); \ - } \ - } \ - ASM_OUTPUT_LABEL(FILE, NAME); \ - } while (0) - -/* Output the size directive for a decl in rest_of_decl_compilation - in the case where we did not do so before the initializer. - Once we find the error_mark_node, we know that the value of - size_directive_output was set - by ASM_DECLARE_OBJECT_NAME when it was run for the same decl. */ - -#undef ASM_FINISH_DECLARE_OBJECT -#define ASM_FINISH_DECLARE_OBJECT(FILE, DECL, TOP_LEVEL, AT_END) \ -do { \ - char *name = XSTR (XEXP (DECL_RTL (DECL), 0), 0); \ - if (!flag_inhibit_size_directive && DECL_SIZE (DECL) \ - && DECLARE_ASM_NAME \ - && ! AT_END && TOP_LEVEL \ - && DECL_INITIAL (DECL) == error_mark_node \ - && !size_directive_output) \ - { \ - size_directive_output = 1; \ - fprintf (FILE, "\t%s\t ", SIZE_ASM_OP); \ - assemble_name (FILE, name); \ - fprintf (FILE, ",%d\n", int_size_in_bytes (TREE_TYPE (DECL))); \ - } \ - } while (0) - -/* This is how to declare the size of a function. */ -#undef ASM_DECLARE_FUNCTION_SIZE -#define ASM_DECLARE_FUNCTION_SIZE(FILE, FNAME, DECL) \ - do { \ - if (DECLARE_ASM_NAME) \ - { \ - if (!flag_inhibit_size_directive) \ - { \ - char label[256]; \ - static int labelno = 0; \ - labelno++; \ - ASM_GENERATE_INTERNAL_LABEL (label, "Lfe", labelno); \ - ASM_OUTPUT_INTERNAL_LABEL (FILE, "Lfe", labelno); \ - fprintf (FILE, "\t%s\t ", SIZE_ASM_OP); \ - assemble_name (FILE, (FNAME)); \ - fprintf (FILE, ",%s-", &label[1]); \ - assemble_name (FILE, (FNAME)); \ - putc ('\n', FILE); \ - } \ - } \ - } while (0) - -/* 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 { \ - fprintf (FILE, "\t%s\t ", GLOBAL_ASM_OP); \ - assemble_name (FILE, NAME); \ - putc ('\n', FILE); \ - } while (0) - -/* This is how to output a reference to a user-level label named NAME. - Override svr[34].h. */ -#undef ASM_OUTPUT_LABELREF -#define ASM_OUTPUT_LABELREF(FILE,NAME) \ - { \ - if (!TARGET_NO_UNDERSCORES && !TARGET_SVR4) \ - fputc ('_', FILE); \ - fputs (NAME, FILE); \ - } - -/* This is how to output an internal numbered label where - PREFIX is the class of label and NUM is the number within the class. - For V.4, labels use `.' rather than `@'. */ - -#undef ASM_OUTPUT_INTERNAL_LABEL -#ifdef AS_BUG_DOT_LABELS /* The assembler requires a declaration of local. */ -#define ASM_OUTPUT_INTERNAL_LABEL(FILE,PREFIX,NUM) \ - fprintf (FILE, TARGET_SVR4 ? ".%s%d:\n\t%s\t .%s%d\n" : "@%s%d:\n", \ - PREFIX, NUM, INTERNAL_ASM_OP, PREFIX, NUM) -#else -#define ASM_OUTPUT_INTERNAL_LABEL(FILE,PREFIX,NUM) \ - fprintf (FILE, TARGET_SVR4 ? ".%s%d:\n" : "@%s%d:\n", PREFIX, NUM) -#endif /* AS_BUG_DOT_LABELS */ - -/* 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'. This must agree - with ASM_OUTPUT_INTERNAL_LABEL above, except for being prefixed - with an `*'. */ - -#undef ASM_GENERATE_INTERNAL_LABEL -#define ASM_GENERATE_INTERNAL_LABEL(LABEL,PREFIX,NUM) \ - sprintf (LABEL, TARGET_SVR4 ? "*.%s%d" : "*@%s%d", PREFIX, NUM) - -/* Internal macro to get a single precision floating point value into - an int, so we can print it's value in hex. */ -#define FLOAT_TO_INT_INTERNAL( FVALUE, IVALUE ) \ - { union { \ - REAL_VALUE_TYPE d; \ - struct { \ - unsigned sign : 1; \ - unsigned exponent1 : 1; \ - unsigned exponent2 : 3; \ - unsigned exponent3 : 7; \ - unsigned mantissa1 : 20; \ - unsigned mantissa2 : 3; \ - unsigned mantissa3 : 29; \ - } s; \ - } _u; \ - \ - union { \ - int i; \ - struct { \ - unsigned sign : 1; \ - unsigned exponent1 : 1; \ - unsigned exponent3 : 7; \ - unsigned mantissa1 : 20; \ - unsigned mantissa2 : 3; \ - } s; \ - } _u2; \ - \ - _u.d = REAL_VALUE_TRUNCATE (SFmode, FVALUE); \ - _u2.s.sign = _u.s.sign; \ - _u2.s.exponent1 = _u.s.exponent1; \ - _u2.s.exponent3 = _u.s.exponent3; \ - _u2.s.mantissa1 = _u.s.mantissa1; \ - _u2.s.mantissa2 = _u.s.mantissa2; \ - IVALUE = _u2.i; \ - } - -/* This is how to output an assembler line defining a `double' constant. - Use "word" pseudos to avoid printing NaNs, infinity, etc. */ -#define ASM_OUTPUT_DOUBLE(FILE,VALUE) \ - do { \ - union { REAL_VALUE_TYPE d; long l[2]; } x; \ - x.d = (VALUE); \ - fprintf (FILE, "\t%s\t 0x%.8x, 0x%.8x\n", INT_ASM_OP, \ - x.l[0], x.l[1]); \ - } while (0) - -/* This is how to output an assembler line defining a `float' constant. */ -#define ASM_OUTPUT_FLOAT(FILE,VALUE) \ - do { \ - int i; \ - FLOAT_TO_INT_INTERNAL (VALUE, i); \ - fprintf (FILE, "\t%s\t 0x%.8x\n", INT_ASM_OP, i); \ - } while (0) - -/* Likewise for `int', `short', and `char' constants. */ -#define ASM_OUTPUT_INT(FILE,VALUE) \ -( fprintf (FILE, "\t%s\t ", INT_ASM_OP), \ - output_addr_const (FILE, (VALUE)), \ - fprintf (FILE, "\n")) - -#define ASM_OUTPUT_SHORT(FILE,VALUE) \ -( fprintf (FILE, "\t%s\t ", SHORT_ASM_OP), \ - output_addr_const (FILE, (VALUE)), \ - fprintf (FILE, "\n")) - -#define ASM_OUTPUT_CHAR(FILE,VALUE) \ -( fprintf (FILE, "\t%s\t ", CHAR_ASM_OP), \ - 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%s\t 0x%x\n", CHAR_ASM_OP, (VALUE)) - -/* The single-byte pseudo-op is the default. Override svr[34].h. */ -#undef ASM_BYTE_OP -#define ASM_BYTE_OP "byte" -#undef ASM_OUTPUT_ASCII -#define ASM_OUTPUT_ASCII(FILE, P, SIZE) \ - output_ascii (FILE, ASCII_DATA_ASM_OP, 48, P, SIZE) - -/* Override svr4.h. Change to the readonly data section for a table of - addresses. final_scan_insn changes back to the text section. */ -#undef ASM_OUTPUT_CASE_LABEL -#define ASM_OUTPUT_CASE_LABEL(FILE, PREFIX, NUM, TABLE) \ - do { \ - if (! CASE_VECTOR_INSNS) \ - { \ - readonly_data_section (); \ - ASM_OUTPUT_ALIGN (FILE, 2); \ - } \ - ASM_OUTPUT_INTERNAL_LABEL (FILE, PREFIX, NUM); \ - } while (0) - -/* Epilogue for case labels. This jump instruction is called by casesi - to transfer to the appropriate branch instruction within the table. - The label `@L<n>e' is coined to mark the end of the table. */ -#define ASM_OUTPUT_CASE_END(FILE, NUM, TABLE) \ - do { \ - if (CASE_VECTOR_INSNS) \ - { \ - char label[256]; \ - ASM_GENERATE_INTERNAL_LABEL (label, "L", NUM); \ - fprintf (FILE, "%se:\n", &label[1]); \ - if (! flag_delayed_branch) \ - fprintf (FILE, "\tlda\t %s,%s[%s]\n", reg_names[1], \ - reg_names[1], reg_names[m88k_case_index]); \ - fprintf (FILE, "\tjmp\t %s\n", reg_names[1]); \ - } \ - } while (0) - -/* This is how to output an element of a case-vector that is absolute. */ -#define ASM_OUTPUT_ADDR_VEC_ELT(FILE, VALUE) \ - do { \ - char buffer[256]; \ - ASM_GENERATE_INTERNAL_LABEL (buffer, "L", VALUE); \ - fprintf (FILE, CASE_VECTOR_INSNS ? "\tbr\t %s\n" : "\tword\t %s\n", \ - &buffer[1]); \ - } while (0) - -/* This is how to output an element of a case-vector that is relative. */ -#define ASM_OUTPUT_ADDR_DIFF_ELT(FILE, VALUE, REL) \ - ASM_OUTPUT_ADDR_VEC_ELT (FILE, VALUE) - -/* 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%s\t %d\n", ALIGN_ASM_OP, 1<<(LOG)) - -/* On the m88100, align the text address to half a cache boundary when it - can only be reached by jumping. Pack code tightly when compiling - crtstuff.c. */ -#define ASM_OUTPUT_ALIGN_CODE(FILE) \ - ASM_OUTPUT_ALIGN (FILE, \ - (TARGET_88100 && !flag_inhibit_size_directive ? 3 : 2)) - -/* Override svr[34].h. */ -#undef ASM_OUTPUT_SKIP -#define ASM_OUTPUT_SKIP(FILE,SIZE) \ - fprintf (FILE, "\t%s\t %u\n", SKIP_ASM_OP, (SIZE)) - -/* Override svr4.h. */ -#undef ASM_OUTPUT_EXTERNAL_LIBCALL - -/* This says how to output an assembler line to define a global common - symbol. Size can be zero for the unusual case of a `struct { int : 0; }'. - Override svr[34].h. */ -#undef ASM_OUTPUT_COMMON -#undef ASM_OUTPUT_ALIGNED_COMMON -#define ASM_OUTPUT_COMMON(FILE, NAME, SIZE, ROUNDED) \ -( fprintf ((FILE), "\t%s\t ", \ - ((SIZE) ? (SIZE) : 1) <= m88k_gp_threshold ? SCOMM_ASM_OP : COMMON_ASM_OP), \ - assemble_name ((FILE), (NAME)), \ - fprintf ((FILE), ",%u\n", (SIZE) ? (SIZE) : 1)) - -/* This says how to output an assembler line to define a local common - symbol. Override svr[34].h. */ -#undef ASM_OUTPUT_LOCAL -#undef ASM_OUTPUT_ALIGNED_LOCAL -#define ASM_OUTPUT_LOCAL(FILE, NAME, SIZE, ROUNDED) \ -( fprintf ((FILE), "\t%s\t ", \ - ((SIZE) ? (SIZE) : 1) <= m88k_gp_threshold ? SBSS_ASM_OP : BSS_ASM_OP), \ - assemble_name ((FILE), (NAME)), \ - fprintf ((FILE), ",%u,%d\n", (SIZE) ? (SIZE) : 1, (SIZE) <= 4 ? 4 : 8)) - -/* 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))) - -/* 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, "\tsubu\t %s,%s,%d\n\tst\t %s,%s,0\n", \ - reg_names[STACK_POINTER_REGNUM], \ - reg_names[STACK_POINTER_REGNUM], \ - (STACK_BOUNDARY / BITS_PER_UNIT), \ - reg_names[REGNO], \ - reg_names[STACK_POINTER_REGNUM]) - -/* Length in instructions of the code output by ASM_OUTPUT_REG_PUSH. */ -#define REG_PUSH_LENGTH 2 - -/* This is how to output an insn to pop a register from the stack. */ -#define ASM_OUTPUT_REG_POP(FILE,REGNO) \ - fprintf (FILE, "\tld\t %s,%s,0\n\taddu\t %s,%s,%d\n", \ - reg_names[REGNO], \ - reg_names[STACK_POINTER_REGNUM], \ - reg_names[STACK_POINTER_REGNUM], \ - reg_names[STACK_POINTER_REGNUM], \ - (STACK_BOUNDARY / BITS_PER_UNIT)) - -/* Length in instructions of the code output by ASM_OUTPUT_REG_POP. */ -#define REG_POP_LENGTH 2 - -/* 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 - -/* Macros to deal with OCS debug information */ - -#define OCS_START_PREFIX "Ltb" -#define OCS_END_PREFIX "Lte" - -#define PUT_OCS_FUNCTION_START(FILE) \ - { ASM_OUTPUT_INTERNAL_LABEL (FILE, OCS_START_PREFIX, m88k_function_number); } - -#define PUT_OCS_FUNCTION_END(FILE) \ - { ASM_OUTPUT_INTERNAL_LABEL (FILE, OCS_END_PREFIX, m88k_function_number); } - -/* Macros for debug information */ -#define DEBUGGER_AUTO_OFFSET(X) \ - (m88k_debugger_offset (X, 0) \ - + (TARGET_OCS_FRAME_POSITION ? 0 : m88k_stack_size - m88k_fp_offset)) - -#define DEBUGGER_ARG_OFFSET(OFFSET, X) \ - (m88k_debugger_offset (X, OFFSET) \ - + (TARGET_OCS_FRAME_POSITION ? 0 : m88k_stack_size - m88k_fp_offset)) - -/* Macros to deal with SDB debug information */ -#ifdef SDB_DEBUGGING_INFO - -/* Output structure tag names even when it causes a forward reference. */ -#define SDB_ALLOW_FORWARD_REFERENCES - -/* Print out extra debug information in the assembler file */ -#define PUT_SDB_SCL(a) \ - do { \ - register int s = (a); \ - register char *scl; \ - switch (s) \ - { \ - case C_EFCN: scl = "end of function"; break; \ - case C_NULL: scl = "NULL storage class"; break; \ - case C_AUTO: scl = "automatic"; break; \ - case C_EXT: scl = "external"; break; \ - case C_STAT: scl = "static"; break; \ - case C_REG: scl = "register"; break; \ - case C_EXTDEF: scl = "external definition"; break; \ - case C_LABEL: scl = "label"; break; \ - case C_ULABEL: scl = "undefined label"; break; \ - case C_MOS: scl = "structure member"; break; \ - case C_ARG: scl = "argument"; break; \ - case C_STRTAG: scl = "structure tag"; break; \ - case C_MOU: scl = "union member"; break; \ - case C_UNTAG: scl = "union tag"; break; \ - case C_TPDEF: scl = "typedef"; break; \ - case C_USTATIC: scl = "uninitialized static"; break; \ - case C_ENTAG: scl = "enumeration tag"; break; \ - case C_MOE: scl = "member of enumeration"; break; \ - case C_REGPARM: scl = "register parameter"; break; \ - case C_FIELD: scl = "bit field"; break; \ - case C_BLOCK: scl = "block start/end"; break; \ - case C_FCN: scl = "function start/end"; break; \ - case C_EOS: scl = "end of structure"; break; \ - case C_FILE: scl = "filename"; break; \ - case C_LINE: scl = "line"; break; \ - case C_ALIAS: scl = "duplicated tag"; break; \ - case C_HIDDEN: scl = "hidden"; break; \ - default: scl = "unknown"; break; \ - } \ - \ - fprintf(asm_out_file, "\tscl\t %d\t\t\t\t; %s\n", s, scl); \ - } while (0) - -#define PUT_SDB_TYPE(a) \ - do { \ - register int t = (a); \ - static char buffer[100]; \ - register char *p = buffer, *q; \ - register int typ = t; \ - register int i,d; \ - \ - for (i = 0; i <= 5; i++) \ - { \ - switch ((typ >> ((i*N_TSHIFT) + N_BTSHFT)) & 03) \ - { \ - case DT_PTR: \ - strcpy (p, "ptr to "); \ - p += sizeof("ptr to"); \ - break; \ - \ - case DT_ARY: \ - strcpy (p, "array of "); \ - p += sizeof("array of"); \ - break; \ - \ - case DT_FCN: \ - strcpy (p, "func ret "); \ - p += sizeof("func ret"); \ - break; \ - } \ - } \ - \ - switch (typ & N_BTMASK) \ - { \ - case T_NULL: q = "<no type>"; break; \ - case T_CHAR: q = "char"; break; \ - case T_SHORT: q = "short"; break; \ - case T_INT: q = "int"; break; \ - case T_LONG: q = "long"; break; \ - case T_FLOAT: q = "float"; break; \ - case T_DOUBLE: q = "double"; break; \ - case T_STRUCT: q = "struct"; break; \ - case T_UNION: q = "union"; break; \ - case T_ENUM: q = "enum"; break; \ - case T_MOE: q = "enum member"; break; \ - case T_UCHAR: q = "unsigned char"; break; \ - case T_USHORT: q = "unsigned short"; break; \ - case T_UINT: q = "unsigned int"; break; \ - case T_ULONG: q = "unsigned long"; break; \ - default: q = "void"; break; \ - } \ - \ - strcpy (p, q); \ - fprintf(asm_out_file, "\ttype\t %d\t\t\t\t; %s\n", \ - t, buffer); \ - } while (0) - -#define PUT_SDB_INT_VAL(a) \ - fprintf (asm_out_file, "\tval\t %d\n", (a)) - -#define PUT_SDB_VAL(a) \ -( fprintf (asm_out_file, "\tval\t "), \ - output_addr_const (asm_out_file, (a)), \ - fputc ('\n', asm_out_file)) - -#define PUT_SDB_DEF(a) \ - do { fprintf (asm_out_file, "\tsdef\t "); \ - ASM_OUTPUT_LABELREF (asm_out_file, a); \ - fputc ('\n', asm_out_file); \ - } while (0) - -#define PUT_SDB_PLAIN_DEF(a) \ - fprintf(asm_out_file,"\tsdef\t .%s\n", a) - -/* Simply and endef now. */ -#define PUT_SDB_ENDEF \ - fputs("\tendef\n\n", asm_out_file) - -#define PUT_SDB_SIZE(a) \ - fprintf (asm_out_file, "\tsize\t %d\n", (a)) - -/* Max dimensions to store for debug information (limited by COFF). */ -#define SDB_MAX_DIM 6 - -/* New method for dim operations. */ -#define PUT_SDB_START_DIM \ - fputs("\tdim\t ", asm_out_file) - -/* How to end the DIM sequence. */ -#define PUT_SDB_LAST_DIM(a) \ - fprintf(asm_out_file, "%d\n", a) - -#define PUT_SDB_TAG(a) \ - do { \ - fprintf (asm_out_file, "\ttag\t "); \ - ASM_OUTPUT_LABELREF (asm_out_file, a); \ - fputc ('\n', asm_out_file); \ - } while( 0 ) - -#define PUT_SDB_BLOCK_OR_FUNCTION(NAME, SCL, LINE) \ - do { \ - fprintf (asm_out_file, "\n\tsdef\t %s\n\tval\t .\n", \ - NAME); \ - PUT_SDB_SCL( SCL ); \ - fprintf (asm_out_file, "\tline\t %d\n\tendef\n\n", \ - (LINE)); \ - } while (0) - -#define PUT_SDB_BLOCK_START(LINE) \ - PUT_SDB_BLOCK_OR_FUNCTION (".bb", C_BLOCK, (LINE)) - -#define PUT_SDB_BLOCK_END(LINE) \ - PUT_SDB_BLOCK_OR_FUNCTION (".eb", C_BLOCK, (LINE)) - -#define PUT_SDB_FUNCTION_START(LINE) \ - do { \ - fprintf (asm_out_file, "\tln\t 1\n"); \ - PUT_SDB_BLOCK_OR_FUNCTION (".bf", C_FCN, (LINE)); \ - } while (0) - -#define PUT_SDB_FUNCTION_END(LINE) \ - do { \ - PUT_SDB_BLOCK_OR_FUNCTION (".ef", C_FCN, (LINE)); \ - } while (0) - -#define PUT_SDB_EPILOGUE_END(NAME) \ - do { \ - text_section (); \ - fprintf (asm_out_file, "\n\tsdef\t "); \ - ASM_OUTPUT_LABELREF(asm_out_file, (NAME)); \ - fputc('\n', asm_out_file); \ - PUT_SDB_SCL( C_EFCN ); \ - fprintf (asm_out_file, "\tendef\n\n"); \ - } while (0) - -#define SDB_GENERATE_FAKE(BUFFER, NUMBER) \ - sprintf ((BUFFER), ".%dfake", (NUMBER)); - -#endif /* SDB_DEBUGGING_INFO */ - -/* Support const and tdesc sections. Generally, a const section will - be distinct from the text section whenever we do V.4-like things - and so follows DECLARE_ASM_NAME. Note that strings go in text - rather than const. Override svr[34].h. */ - -#undef USE_CONST_SECTION -#undef EXTRA_SECTIONS - -#define USE_CONST_SECTION DECLARE_ASM_NAME - -#if defined(USING_SVR4_H) - -#define EXTRA_SECTIONS in_const, in_tdesc, in_sdata, in_ctors, in_dtors -#define INIT_SECTION_FUNCTION -#define FINI_SECTION_FUNCTION - -#else -#if defined(USING_SVR3_H) - -#define EXTRA_SECTIONS in_const, in_tdesc, in_sdata, in_ctors, in_dtors, \ - in_init, in_fini - -#else /* luna or other not based on svr[34].h. */ - -#undef INIT_SECTION_ASM_OP -#define EXTRA_SECTIONS in_const, in_tdesc, in_sdata -#define CONST_SECTION_FUNCTION \ -void \ -const_section () \ -{ \ - text_section(); \ -} -#define CTORS_SECTION_FUNCTION -#define DTORS_SECTION_FUNCTION -#define INIT_SECTION_FUNCTION -#define FINI_SECTION_FUNCTION - -#endif /* USING_SVR3_H */ -#endif /* USING_SVR4_H */ - -#undef EXTRA_SECTION_FUNCTIONS -#define EXTRA_SECTION_FUNCTIONS \ - CONST_SECTION_FUNCTION \ - \ -void \ -tdesc_section () \ -{ \ - if (in_section != in_tdesc) \ - { \ - fprintf (asm_out_file, "%s\n", TDESC_SECTION_ASM_OP); \ - in_section = in_tdesc; \ - } \ -} \ - \ -void \ -sdata_section () \ -{ \ - if (in_section != in_sdata) \ - { \ - fprintf (asm_out_file, "%s\n", SDATA_SECTION_ASM_OP); \ - in_section = in_sdata; \ - } \ -} \ - \ - CTORS_SECTION_FUNCTION \ - DTORS_SECTION_FUNCTION \ - INIT_SECTION_FUNCTION \ - FINI_SECTION_FUNCTION - -/* A C statement or statements to switch to the appropriate - section for output of DECL. DECL is either a `VAR_DECL' node - or a constant of some sort. RELOC indicates whether forming - the initial value of DECL requires link-time relocations. - - For strings, the section is selected before the segment info is encoded. */ -#undef SELECT_SECTION -#define SELECT_SECTION(DECL,RELOC) \ -{ \ - if (TREE_CODE (DECL) == STRING_CST) \ - { \ - if (! flag_writable_strings) \ - const_section (); \ - else if ( TREE_STRING_LENGTH (DECL) <= m88k_gp_threshold) \ - sdata_section (); \ - else \ - data_section (); \ - } \ - else if (TREE_CODE (DECL) == VAR_DECL) \ - { \ - if (SYMBOL_REF_FLAG (XEXP (DECL_RTL (DECL), 0))) \ - sdata_section (); \ - else if ((flag_pic && RELOC) \ - || !TREE_READONLY (DECL) || TREE_SIDE_EFFECTS (DECL) \ - || !DECL_INITIAL (DECL) \ - || (DECL_INITIAL (DECL) != error_mark_node \ - && !TREE_CONSTANT (DECL_INITIAL (DECL)))) \ - data_section (); \ - else \ - const_section (); \ - } \ - else \ - const_section (); \ -} - -/* Jump tables consist of branch instructions and should be output in - the text section. When we use a table of addresses, we explicitly - change to the readonly data section. */ -#define JUMP_TABLES_IN_TEXT_SECTION 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). - - The macro definition, if any, is executed immediately after the rtl for - DECL has been created and stored in `DECL_RTL (DECL)'. The value of the - rtl will be a `mem' whose address is a `symbol_ref'. - - For the m88k, determine if the item should go in the global pool. */ -#define ENCODE_SECTION_INFO(DECL) \ - do { \ - if (m88k_gp_threshold > 0) \ - if (TREE_CODE (DECL) == VAR_DECL) \ - { \ - if (!TREE_READONLY (DECL) || TREE_SIDE_EFFECTS (DECL)) \ - { \ - int size = int_size_in_bytes (TREE_TYPE (DECL)); \ - \ - if (size > 0 && size <= m88k_gp_threshold) \ - SYMBOL_REF_FLAG (XEXP (DECL_RTL (DECL), 0)) = 1; \ - } \ - } \ - else if (TREE_CODE (DECL) == STRING_CST \ - && flag_writable_strings \ - && TREE_STRING_LENGTH (DECL) <= m88k_gp_threshold) \ - SYMBOL_REF_FLAG (XEXP (TREE_CST_RTL (DECL), 0)) = 1; \ - } while (0) - -/* 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(c) \ - ((c) == '#' || (c) == '.' || (c) == '!' || (c) == '*' || (c) == ';') - -#define PRINT_OPERAND(FILE, X, CODE) print_operand (FILE, X, CODE) - -/* Print a memory address as an operand to reference that memory location. */ -#define PRINT_OPERAND_ADDRESS(FILE, ADDR) print_operand_address (FILE, ADDR) - -/* This says not to strength reduce the addr calculations within loops - (otherwise it does not take advantage of m88k scaled loads and stores */ - -#define DONT_REDUCE_ADDR |