1 /* Definitions of target machine for GNU compiler.
2 Motorola m88100 in an 88open OCS/BCS environment.
3 Copyright (C) 1988, 1989, 1990, 1991 Free Software Foundation, Inc.
4 Contributed by Michael Tiemann (tiemann@mcc.com)
5 Enhanced by Michael Meissner (meissner@osf.org)
6 Currently supported by Tom Wood (wood@dg-rtp.dg.com)
8 This file is part of GNU CC.
10 GNU CC is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 2, or (at your option)
15 GNU CC is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
20 You should have received a copy of the GNU General Public License
21 along with GNU CC; see the file COPYING. If not, write to
22 the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
24 /* The m88100 port of GNU CC adheres to the various standards from 88open.
25 These documents are available by writing:
27 88open Consortium Ltd.
28 100 Homeland Court, Suite 800
32 In brief, the current standards are:
34 Binary Compatibility Standard, Release 1.1A, May 1991
35 This provides for portability of application-level software at the
36 executable level for AT&T System V Release 3.2.
38 Object Compatibility Standard, Release 1.1A, May 1991
39 This provides for portability of application-level software at the
40 object file and library level for C, Fortran, and Cobol, and again,
43 Under development are standards for AT&T System V Release 4, based on the
44 [generic] System V Application Binary Interface from AT&T. These include:
46 System V Application Binary Interface, Motorola 88000 Processor Supplement
47 Another document from AT&T for SVR4 specific to the m88100.
48 Available from Prentice Hall.
50 System V Application Binary Interface, Motorola 88000 Processor Supplement,
51 Release 1.1, Draft H, May 6, 1991
52 A proposed update to the AT&T document from 88open.
54 System V ABI Implementation Guide for the M88000 Processor,
55 Release 1.0, January 1991
56 A companion ABI document from 88open. */
58 /* Other m88k*.h files include this one and override certain items.
59 At present, these are m88kv3.h, m88kv4.h, m88kdgux.h, and m88kluna.h.
60 Additionally, m88kv4.h and m88kdgux.h include svr4.h first. All other
61 m88k targets except m88kluna.h are based on svr3.h. */
63 /* Choose SVR3 as the default. */
64 #if !defined(DBX_DEBUGGING_INFO) && !defined(DWARF_DEBUGGING_INFO)
68 /* External types used. */
70 /* What instructions are needed to manufacture an integer constant. */
71 enum m88k_instruction {
82 /* External variables/functions defined in m88k.c. */
84 extern char *m88k_pound_sign;
85 extern char *m88k_short_data;
87 extern int m88k_gp_threshold;
88 extern int m88k_prologue_done;
89 extern int m88k_function_number;
90 extern int m88k_fp_offset;
91 extern int m88k_stack_size;
92 extern int m88k_case_index;
94 extern struct rtx_def *m88k_compare_reg;
95 extern struct rtx_def *m88k_compare_op0;
96 extern struct rtx_def *m88k_compare_op1;
98 extern enum attr_cpu m88k_cpu;
100 extern int null_epilogue ();
101 extern int integer_ok_for_set ();
102 extern int m88k_debugger_offset ();
103 extern void m88k_handle_pragma_token ();
105 extern void emit_bcnd ();
106 extern void expand_block_move ();
107 extern void check_float_value ();
108 extern void m88k_layout_frame ();
109 extern void m88k_output_prologue ();
110 extern void m88k_output_epilogue ();
111 extern void output_function_profiler ();
112 extern void output_function_block_profiler ();
113 extern void output_block_profiler ();
114 extern void output_file_start ();
115 extern void output_ascii ();
116 extern void output_label ();
117 extern void print_operand ();
118 extern void print_operand_address ();
120 extern char *output_load_const_int ();
121 extern char *output_load_const_float ();
122 extern char *output_load_const_double ();
123 extern char *output_load_const_dimode ();
124 extern char *output_and ();
125 extern char *output_ior ();
126 extern char *output_xor ();
127 extern char *output_call ();
129 extern struct rtx_def *emit_test ();
130 extern struct rtx_def *legitimize_address ();
131 extern struct rtx_def *legitimize_operand ();
132 extern struct rtx_def *m88k_function_arg ();
133 extern struct rtx_def *m88k_builtin_saveregs ();
135 extern enum m88k_instruction classify_integer ();
137 /* external variables defined elsewhere in the compiler */
139 extern int target_flags; /* -m compiler switches */
140 extern int frame_pointer_needed; /* current function has a FP */
141 extern int current_function_pretend_args_size; /* args size without ... */
142 extern int flag_delayed_branch; /* -fdelayed-branch */
143 extern int flag_pic; /* -fpic */
144 extern char * reg_names[];
146 /* Specify the default monitors. The meaning of these values can
147 be obtained by doing "grep MONITOR_GCC *m88k*". Generally, the
148 values downward from 0x8000 are tests that will soon go away.
149 values upward from 0x1 are generally useful tests that will remain. */
152 #define MONITOR_GCC 0
155 /*** Controlling the Compilation Driver, `gcc' ***/
157 /* Some machines may desire to change what optimizations are performed for
158 various optimization levels. This macro, if defined, is executed once
159 just after the optimization level is determined and before the remainder
160 of the command options have been parsed. Values set in this macro are
161 used as the default values for the other command line options.
163 LEVEL is the optimization level specified; 2 if -O2 is specified,
164 1 if -O is specified, and 0 if neither is specified. */
166 /* This macro used to store 0 in flag_signed_bitfields.
167 Not only is that misuse of this macro; the whole idea is wrong.
169 The GNU C dialect makes bitfields signed by default,
170 regardless of machine type. Making any machine inconsistent in this
171 regard is bad for portability.
173 I chose to make bitfields signed by default because this is consistent
174 with the way ordinary variables are handled: `int' equals `signed int'.
175 If there is a good reason to prefer making bitfields unsigned by default,
176 it cannot have anything to do with the choice of machine.
177 If the reason is good enough, we should change the convention for all machines.
179 -- rms, 20 July 1991. */
181 #define OPTIMIZATION_OPTIONS(LEVEL) \
185 flag_omit_frame_pointer = 1; \
189 /* LIB_SPEC, LINK_SPEC, and STARTFILE_SPEC defined in svr3.h.
190 ASM_SPEC, ASM_FINAL_SPEC, LIB_SPEC, LINK_SPEC, and STARTFILE_SPEC redefined
192 CPP_SPEC, ASM_SPEC, ASM_FINAL_SPEC, LIB_SPEC, LINK_SPEC, and
193 STARTFILE_SPEC redefined in m88kdgux.h. */
195 /*** Run-time Target Specification ***/
197 /* Names to predefine in the preprocessor for this target machine.
198 Redefined in m88kv3.h, m88kv4.h, m88kdgux.h, and m88kluna.h. */
199 #define CPP_PREDEFINES "-Dm88000 -Dm88k -Dunix -D__CLASSIFY_TYPE__=2"
201 #define TARGET_VERSION fprintf (stderr, " (%s%s)", \
202 VERSION_INFO1, VERSION_INFO2)
204 /* Print subsidiary information on the compiler version in use.
205 Redefined in m88kv4.h, and m88kluna.h. */
206 #define VERSION_INFO1 "88open OCS/BCS, "
207 #define VERSION_INFO2 "27 Apr 1992"
208 #define VERSION_STRING version_string
209 #define TM_SCCS_ID "@(#)m88k.h 2.1.4.6 27 Apr 1992 16:30:45"
211 /* Run-time compilation parameters selecting different hardware subsets. */
213 /* Macro to define tables used to set the flags.
214 This is a list in braces of pairs in braces,
215 each pair being { "NAME", VALUE }
216 where VALUE is the bits to set or minus the bits to clear.
217 An empty string NAME is used to identify the default VALUE. */
219 #define MASK_88100 0x00000001 /* Target m88100 */
220 #define MASK_88110 0x00000002 /* Target m88110 */
221 #define MASK_OCS_DEBUG_INFO 0x00000004 /* Emit .tdesc info */
222 #define MASK_OCS_FRAME_POSITION 0x00000008 /* Debug frame = CFA, not r30 */
223 #define MASK_SVR4 0x00000010 /* Target is AT&T System V.4 */
224 #define MASK_VERSION_0300 0x00000020 /* Use version 03.00 syntax */
225 #define MASK_NO_UNDERSCORES 0x00000040 /* Don't emit a leading `_' */
226 #define MASK_BIG_PIC 0x00000080 /* PIC with large got-rel's -fPIC */
227 #define MASK_TRAP_LARGE_SHIFT 0x00000100 /* Trap if shift not <= 31 */
228 #define MASK_HANDLE_LARGE_SHIFT 0x00000200 /* Handle shift count >= 32 */
229 #define MASK_CHECK_ZERO_DIV 0x00000400 /* Check for int div. by 0 */
230 #define MASK_USE_DIV 0x00000800 /* No signed div. checks */
231 #define MASK_IDENTIFY_REVISION 0x00001000 /* Emit ident, with GCC rev */
232 #define MASK_WARN_PASS_STRUCT 0x00002000 /* Warn about passed structs */
233 #define MASK_OPTIMIZE_ARG_AREA 0x00004000 /* Save stack space */
235 #define MASK_88000 (MASK_88100 | MASK_88110)
236 #define MASK_EITHER_LARGE_SHIFT (MASK_TRAP_LARGE_SHIFT | \
237 MASK_HANDLE_LARGE_SHIFT)
239 #define TARGET_88100 ((target_flags & MASK_88000) == MASK_88100)
240 #define TARGET_88110 ((target_flags & MASK_88000) == MASK_88110)
241 #define TARGET_88000 ((target_flags & MASK_88000) == MASK_88000)
243 #define TARGET_OCS_DEBUG_INFO (target_flags & MASK_OCS_DEBUG_INFO)
244 #define TARGET_OCS_FRAME_POSITION (target_flags & MASK_OCS_FRAME_POSITION)
245 #define TARGET_SVR4 (target_flags & MASK_SVR4)
246 #define TARGET_VERSION_0300 (target_flags & MASK_VERSION_0300)
247 #define TARGET_NO_UNDERSCORES (target_flags & MASK_NO_UNDERSCORES)
248 #define TARGET_BIG_PIC (target_flags & MASK_BIG_PIC)
249 #define TARGET_TRAP_LARGE_SHIFT (target_flags & MASK_TRAP_LARGE_SHIFT)
250 #define TARGET_HANDLE_LARGE_SHIFT (target_flags & MASK_HANDLE_LARGE_SHIFT)
251 #define TARGET_CHECK_ZERO_DIV (target_flags & MASK_CHECK_ZERO_DIV)
252 #define TARGET_USE_DIV (target_flags & MASK_USE_DIV)
253 #define TARGET_IDENTIFY_REVISION (target_flags & MASK_IDENTIFY_REVISION)
254 #define TARGET_WARN_PASS_STRUCT (target_flags & MASK_WARN_PASS_STRUCT)
255 #define TARGET_OPTIMIZE_ARG_AREA (target_flags & MASK_OPTIMIZE_ARG_AREA)
257 #define TARGET_EITHER_LARGE_SHIFT (target_flags & MASK_EITHER_LARGE_SHIFT)
259 /* Redefined in m88kv3.h,m88kv4.h, and m88kdgux.h. */
260 #define TARGET_DEFAULT (MASK_CHECK_ZERO_DIV)
261 #define CPU_DEFAULT MASK_88100
263 #define TARGET_SWITCHES \
265 { "88110", MASK_88110 }, \
266 { "88100", MASK_88100 }, \
267 { "88000", MASK_88000 }, \
268 { "ocs-debug-info", MASK_OCS_DEBUG_INFO }, \
269 { "no-ocs-debug-info", -MASK_OCS_DEBUG_INFO }, \
270 { "ocs-frame-position", MASK_OCS_FRAME_POSITION }, \
271 { "no-ocs-frame-position", -MASK_OCS_FRAME_POSITION }, \
272 { "svr4", MASK_SVR4 }, \
273 { "svr3", -MASK_SVR4 }, \
274 { "version-03.00", MASK_VERSION_0300 }, \
275 { "no-underscores", MASK_NO_UNDERSCORES }, \
276 { "big-pic", MASK_BIG_PIC }, \
277 { "trap-large-shift", MASK_TRAP_LARGE_SHIFT }, \
278 { "handle-large-shift", MASK_HANDLE_LARGE_SHIFT }, \
279 { "check-zero-division", MASK_CHECK_ZERO_DIV }, \
280 { "no-check-zero-division", -MASK_CHECK_ZERO_DIV }, \
281 { "use-div-instruction", MASK_USE_DIV }, \
282 { "identify-revision", MASK_IDENTIFY_REVISION }, \
283 { "warn-passed-structs", MASK_WARN_PASS_STRUCT }, \
284 { "optimize-arg-area", MASK_OPTIMIZE_ARG_AREA }, \
285 { "no-optimize-arg-area", -MASK_OPTIMIZE_ARG_AREA }, \
287 /* Default switches */ \
288 { "", TARGET_DEFAULT }, \
291 /* Redefined in m88kdgux.h. */
292 #define SUBTARGET_SWITCHES
294 /* Macro to define table for command options with values. */
296 #define TARGET_OPTIONS { { "short-data-", &m88k_short_data } }
298 /* Do any checking or such that is needed after processing the -m switches. */
300 #define OVERRIDE_OPTIONS \
304 if ((target_flags & MASK_88000) == 0) \
305 target_flags |= CPU_DEFAULT; \
307 m88k_cpu = (TARGET_88000 ? CPU_M88000 \
308 : (TARGET_88100 ? CPU_M88100 : CPU_M88110)); \
310 if (TARGET_BIG_PIC) \
313 if ((target_flags & MASK_EITHER_LARGE_SHIFT) == MASK_EITHER_LARGE_SHIFT) \
314 error ("-mtrap-large-shift and -mhandle-large-shift are incompatible");\
316 if (VERSION_0300_SYNTAX) \
318 for (i = 0; i < FIRST_PSEUDO_REGISTER; i++) \
320 m88k_pound_sign = "#"; \
323 if (m88k_short_data) \
325 char *p = m88k_short_data; \
327 if (*p >= '0' && *p <= '9') \
331 error ("Invalid option `-mshort-data-%s'", m88k_short_data); \
334 m88k_gp_threshold = atoi (m88k_short_data); \
336 error ("-mshort-data-%s and PIC are incompatible", m88k_short_data); \
340 /*** Storage Layout ***/
342 /* Sizes in bits of the various types. */
343 #define CHAR_TYPE_SIZE 8
344 #define SHORT_TYPE_SIZE 16
345 #define INT_TYPE_SIZE 32
346 #define LONG_TYPE_SIZE 32
347 #define LONG_LONG_TYPE_SIZE 64
348 #define FLOAT_TYPE_SIZE 32
349 #define DOUBLE_TYPE_SIZE 64
350 #define LONG_DOUBLE_TYPE_SIZE 64
352 /* Define this if most significant bit is lowest numbered
353 in instructions that operate on numbered bit-fields.
354 Somewhat arbitrary. It matches the bit field patterns. */
355 #define BITS_BIG_ENDIAN 1
357 /* Define this if most significant byte of a word is the lowest numbered.
358 That is true on the m88000. */
359 #define BYTES_BIG_ENDIAN 1
361 /* Define this if most significant word of a multiword number is the lowest
363 For the m88000 we can decide arbitrarily since there are no machine
364 instructions for them. */
365 #define WORDS_BIG_ENDIAN 1
367 /* Number of bits in an addressable storage unit */
368 #define BITS_PER_UNIT 8
370 /* Width in bits of a "word", which is the contents of a machine register.
371 Note that this is not necessarily the width of data type `int';
372 if using 16-bit ints on a 68000, this would still be 32.
373 But on a machine with 16-bit registers, this would be 16. */
374 #define BITS_PER_WORD 32
376 /* Width of a word, in units (bytes). */
377 #define UNITS_PER_WORD 4
379 /* Width in bits of a pointer.
380 See also the macro `Pmode' defined below. */
381 #define POINTER_SIZE 32
383 /* Allocation boundary (in *bits*) for storing arguments in argument list. */
384 #define PARM_BOUNDARY 32
386 /* Largest alignment for stack parameters (if greater than PARM_BOUNDARY). */
387 #define MAX_PARM_BOUNDARY 64
389 /* Boundary (in *bits*) on which stack pointer should be aligned. */
390 #define STACK_BOUNDARY 128
392 /* Allocation boundary (in *bits*) for the code of a function.
393 Pack code tightly when compiling crtstuff.c. */
394 #define FUNCTION_BOUNDARY (flag_inhibit_size_directive ? 32 : 128)
396 /* No data type wants to be aligned rounder than this. */
397 #define BIGGEST_ALIGNMENT 64
399 /* Make strings word-aligned so strcpy from constants will be faster. */
400 #define CONSTANT_ALIGNMENT(EXP, ALIGN) \
401 (TREE_CODE (EXP) == STRING_CST \
402 && (ALIGN) < BITS_PER_WORD ? BITS_PER_WORD : (ALIGN))
404 /* Make arrays of chars word-aligned for the same reasons. */
405 #define DATA_ALIGNMENT(TYPE, ALIGN) \
406 (TREE_CODE (TYPE) == ARRAY_TYPE \
407 && TYPE_MODE (TREE_TYPE (TYPE)) == QImode \
408 && (ALIGN) < BITS_PER_WORD ? BITS_PER_WORD : (ALIGN))
410 /* Alignment of field after `int : 0' in a structure.
411 Ignored with PCC_BITFIELD_TYPE_MATTERS. */
412 /* #define EMPTY_FIELD_BOUNDARY 8 */
414 /* Every structure's size must be a multiple of this. */
415 #define STRUCTURE_SIZE_BOUNDARY 8
417 /* Set this nonzero if move instructions will actually fail to work
418 when given unaligned data. */
419 #define STRICT_ALIGNMENT 1
421 /* A bitfield declared as `int' forces `int' alignment for the struct. */
422 #define PCC_BITFIELD_TYPE_MATTERS 1
424 /* Maximum size (in bits) to use for the largest integral type that
425 replaces a BLKmode type. */
426 /* #define MAX_FIXED_MODE_SIZE 0 */
428 /* Report errors on floating point, if we are given NaN's, or such. Leave
429 the number as is, though, since we output the number in hex, and the
430 assembler won't choke on it. */
431 #define CHECK_FLOAT_VALUE(MODE,VALUE) check_float_value (MODE, VALUE)
433 /* A code distinguishing the floating point format of the target machine. */
434 /* #define TARGET_FLOAT_FORMAT IEEE_FLOAT_FORMAT */
436 /*** Register Usage ***/
438 /* Number of actual hardware registers.
439 The hardware registers are assigned numbers for the compiler
440 from 0 to just below FIRST_PSEUDO_REGISTER.
441 All registers that the compiler knows about must be given numbers,
442 even those that are not normally considered general registers.
444 The m88100 has a General Register File (GRF) of 32 32-bit registers.
445 The m88110 adds an Extended Register File (XRF) of 32 80-bit registers. */
446 #define FIRST_PSEUDO_REGISTER 64
447 #define FIRST_EXTENDED_REGISTER 32
449 /* General notes on extended registers, their use and misuse.
453 spill area instead of memory.
454 -waste if only used once
456 floating point caluclations
457 -probably a waste unless we have run out of general purpose registers
459 freeing up general purpose registers
460 -e.g. may be able to have more loop invariants if floating
461 point is moved into extended registers.
464 I've noticed wasteful moves into and out of extended registers; e.g. a load
465 into x21, then inside a loop a move into r24, then r24 used as input to
466 an fadd. Why not just load into r24 to begin with? Maybe the new cse.c
467 will address this. This wastes a move, but the load,store and move could
468 have been saved had extended registers been used throughout.
469 E.g. in the code following code, if z and xz are placed in extended
470 registers, there is no need to save preserve registers.
472 long c=1,d=1,e=1,f=1,g=1,h=1,i=1,j=1,k;
481 k = b + c + d + e + f + g + h + a + i + j++;
485 printf("k= %d; z=%f;\n", k, z);
488 I've found that it is possible to change the constraints (putting * before
489 the 'r' constraints int the fadd.ddd instruction) and get the entire
490 addition and store to go into extended registers. However, this also
491 forces simple addition and return of floating point arguments to a
492 function into extended registers. Not the correct solution.
494 Found the following note in local-alloc.c which may explain why I can't
495 get both registers to be in extended registers since two are allocated in
496 local-alloc and one in global-alloc. Doesn't explain (I don't believe)
497 why an extended register is used instead of just using the preserve
501 We have provision to exempt registers, even when they are contained
502 within the block, that can be tied to others that are not contained in it.
503 This is so that global_alloc could process them both and tie them then.
504 But this is currently disabled since tying in global_alloc is not
507 The explaination of why the preserved register is not used is as follows,
508 I believe. The registers are being allocated in order. Tieing is not
509 done so efficiently, so when it comes time to do the first allocation,
510 there are no registers left to use without spilling except extended
511 registers. Then when the next pseudo register needs a hard reg, there
512 are still no registers to be had for free, but this one must be a GRF
513 reg instead of an extended reg, so a preserve register is spilled. Thus
514 the move from extended to GRF is necessitated. I do not believe this can
515 be 'fixed' through the config/*m88k* files.
517 gcc seems to sometimes make worse use of register allocation -- not counting
518 moves -- whenever extended registers are present. For example in the
519 whetstone, the simple for loop (slightly modified)
520 for(i = 1; i <= n1; i++)
522 x1 = (x1 + x2 + x3 - x4) * t;
523 x2 = (x1 + x2 - x3 + x4) * t;
524 x3 = (x1 - x2 + x3 + x4) * t;
525 x4 = (x1 + x2 + x3 + x4) * t;
527 in general loads the high bits of the addresses of x2-x4 and i into registers
528 outside the loop. Whenever extended registers are used, it loads all of
529 these inside the loop. My conjecture is that since the 88110 has so many
530 registers, and gcc makes no distinction at this point -- just that they are
531 not fixed, that in loop.c it believes it can expect a number of registers
532 to be available. Then it allocates 'too many' in local-alloc which causes
533 problems later. 'Too many' are allocated because a large portion of the
534 registers are extended registers and cannot be used for certain purposes
535 ( e.g. hold the address of a variable). When this loop is compiled on its
536 own, the problem does not occur. I don't know the solution yet, though it
537 is probably in the base sources. Possibly a different way to calculate
540 /* 1 for registers that have pervasive standard uses and are not available
541 for the register allocator. Registers r14-r25 and x22-x29 are expected
542 to be preserved across function calls.
544 On the 88000, the standard uses of the General Register File (GRF) are:
545 Reg 0 = Pseudo argument pointer (hardware fixed to 0).
546 Reg 1 = Subroutine return pointer (hardware).
547 Reg 2-9 = Parameter registers (OCS).
548 Reg 10 = OCS reserved temporary.
549 Reg 11 = Static link if needed [OCS reserved temporary].
550 Reg 12 = Address of structure return (OCS).
551 Reg 13 = OCS reserved temporary.
552 Reg 14-25 = Preserved register set.
553 Reg 26-29 = Reserved by OCS and ABI.
554 Reg 30 = Frame pointer (Common use).
555 Reg 31 = Stack pointer.
557 The following follows the current 88open UCS specification for the
558 Extended Register File (XRF):
559 Reg 32 = x0 Always equal to zero
560 Reg 33-53 = x1-x21 Tempory registers (Caller Save)
561 Reg 54-61 = x22-x29 Preserver registers (Callee Save)
562 Reg 62-63 = x30-x31 Reserved for future ABI use.
564 Note: The current 88110 extended register mapping is subject to change.
565 The bias towards caller-save registers is based on the
566 presumption that memory traffic can potentially be reduced by
567 allowing the "caller" to save only that part of the register
568 which is actually being used. (i.e. don't do a st.x if a st.d
569 is sufficient). Also, in scientific code (a.k.a. Fortran), the
570 large number of variables defined in common blocks may require
571 that almost all registers be saved across calls anyway. */
573 #define FIXED_REGISTERS \
574 {1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
575 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, \
576 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
577 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1}
579 /* 1 for registers not available across function calls.
580 These must include the FIXED_REGISTERS and also any
581 registers that can be used without being saved.
582 The latter must include the registers where values are returned
583 and the register where structure-value addresses are passed.
584 Aside from that, you can include as many other registers as you like. */
586 #define CALL_USED_REGISTERS \
587 {1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, \
588 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, \
589 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, \
590 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1}
592 /* Macro to conditionally modify fixed_regs/call_used_regs. */
593 #define CONDITIONAL_REGISTER_USAGE \
595 if (! TARGET_88110) \
598 for (i = FIRST_EXTENDED_REGISTER; i < FIRST_PSEUDO_REGISTER; i++) \
601 call_used_regs[i] = 1; \
606 /* Current hack to deal with -fpic -O2 problems. */ \
607 fixed_regs[PIC_OFFSET_TABLE_REGNUM] = 1; \
608 call_used_regs[PIC_OFFSET_TABLE_REGNUM] = 1; \
609 global_regs[PIC_OFFSET_TABLE_REGNUM] = 1; \
613 /* These interfaces that don't apply to the m88000. */
614 /* OVERLAPPING_REGNO_P(REGNO) 0 */
615 /* INSN_CLOBBERS_REGNO_P(INSN, REGNO) 0 */
616 /* PRESERVE_DEATH_INFO_REGNO_P(REGNO) 0 */
618 /* Return number of consecutive hard regs needed starting at reg REGNO
619 to hold something of mode MODE.
620 This is ordinarily the length in words of a value of mode MODE
621 but can be less for certain modes in special long registers.
623 On the m88000, GRF registers hold 32-bits and XRF registers hold 80-bits.
624 An XRF register can hold any mode, but two GRF registers are required
626 #define HARD_REGNO_NREGS(REGNO, MODE) \
627 ((REGNO < FIRST_PSEUDO_REGISTER && REGNO >= FIRST_EXTENDED_REGISTER) \
628 ? 1 : ((GET_MODE_SIZE (MODE) + UNITS_PER_WORD - 1) / UNITS_PER_WORD))
630 /* Value is 1 if hard register REGNO can hold a value of machine-mode MODE.
632 For double integers, we never put the value into an odd register so that
633 the operators don't run into the situation where the high part of one of
634 the inputs is the low part of the result register. (It's ok if the output
635 registers are the same as the input registers.) The XRF registers can
636 hold all modes, but only DF and SF modes can be manipulated in these
637 registers. The compiler should be allowed to use these as a fast spill
639 #define HARD_REGNO_MODE_OK(REGNO, MODE) \
640 ((REGNO < FIRST_PSEUDO_REGISTER && REGNO >= FIRST_EXTENDED_REGISTER) \
642 : (((MODE) != DImode && (MODE) != DFmode && (MODE) != DCmode) \
643 || ((REGNO) & 1) == 0))
645 /* Value is 1 if it is a good idea to tie two pseudo registers
646 when one has mode MODE1 and one has mode MODE2.
647 If HARD_REGNO_MODE_OK could produce different values for MODE1 and MODE2,
648 for any hard reg, then this must be 0 for correct output. */
649 #define MODES_TIEABLE_P(MODE1, MODE2) \
650 (((MODE1) == DFmode || (MODE1) == DCmode || (MODE1) == DImode) \
651 == ((MODE2) == DFmode || (MODE2) == DCmode || (MODE2) == DImode))
653 /* Specify the registers used for certain standard purposes.
654 The values of these macros are register numbers. */
656 /* the m88000 pc isn't overloaded on a register that the compiler knows about. */
657 /* #define PC_REGNUM */
659 /* Register to use for pushing function arguments. */
660 #define STACK_POINTER_REGNUM 31
662 /* Base register for access to local variables of the function. */
663 #define FRAME_POINTER_REGNUM 30
665 /* Base register for access to arguments of the function. */
666 #define ARG_POINTER_REGNUM 0
668 /* Register used in cases where a temporary is known to be safe to use. */
669 #define TEMP_REGNUM 10
671 /* Register in which static-chain is passed to a function. */
672 #define STATIC_CHAIN_REGNUM 11
674 /* Register in which address to store a structure value
675 is passed to a function. */
676 #define STRUCT_VALUE_REGNUM 12
678 /* Register to hold the addressing base for position independent
679 code access to data items. */
680 #define PIC_OFFSET_TABLE_REGNUM 25
682 /* Order in which registers are preferred (most to least). Use temp
683 registers, then param registers top down. Preserve registers are
684 top down to maximize use of double memory ops for register save.
685 The 88open reserved registers (r26-r29 and x30-x31) may commonly be used
686 in most environments with the -fcall-used- or -fcall-saved- options. */
687 #define REG_ALLOC_ORDER \
689 13, 12, 11, 10, 29, 28, 27, 26, \
690 1, 62, 63, 9, 8, 7, 6, 5, \
691 4, 3, 2, 53, 52, 51, 50, 49, \
692 48, 47, 46, 45, 44, 43, 42, 41, \
693 40, 39, 38, 37, 36, 35, 34, 33, \
694 25, 24, 23, 22, 21, 20, 19, 18, \
695 17, 16, 15, 14, 61, 60, 59, 58, \
696 57, 56, 55, 54, 30, 31, 0, 32}
698 /*** Register Classes ***/
700 /* Define the classes of registers for register constraints in the
701 machine description. Also define ranges of constants.
703 One of the classes must always be named ALL_REGS and include all hard regs.
704 If there is more than one class, another class must be named NO_REGS
705 and contain no registers.
707 The name GENERAL_REGS must be the name of a class (or an alias for
708 another name such as ALL_REGS). This is the class of registers
709 that is allowed by "g" or "r" in a register constraint.
710 Also, registers outside this class are allocated only when
711 instructions express preferences for them.
713 The classes must be numbered in nondecreasing order; that is,
714 a larger-numbered class must never be contained completely
715 in a smaller-numbered class.
717 For any two classes, it is very desirable that there be another
718 class that represents their union. */
720 /* The m88000 hardware has two kinds of registers. In addition, we denote
721 the arg pointer as a separate class. */
723 enum reg_class { NO_REGS, AP_REG, XRF_REGS, GENERAL_REGS, AGRF_REGS,
724 XGRF_REGS, ALL_REGS, LIM_REG_CLASSES };
726 #define N_REG_CLASSES (int) LIM_REG_CLASSES
728 /* Give names of register classes as strings for dump file. */
729 #define REG_CLASS_NAMES {"NO_REGS", "AP_REG", "XRF_REGS", "GENERAL_REGS", \
730 "AGRF_REGS", "XGRF_REGS", "ALL_REGS" }
732 /* Define which registers fit in which classes.
733 This is an initializer for a vector of HARD_REG_SET
734 of length N_REG_CLASSES. */
735 #define REG_CLASS_CONTENTS {{0x00000000, 0x00000000}, \
736 {0x00000001, 0x00000000}, \
737 {0x00000000, 0xffffffff}, \
738 {0xfffffffe, 0x00000000}, \
739 {0xffffffff, 0x00000000}, \
740 {0xfffffffe, 0xffffffff}, \
741 {0xffffffff, 0xffffffff}}
743 /* The same information, inverted:
744 Return the class number of the smallest class containing
745 reg number REGNO. This could be a conditional expression
746 or could index an array. */
747 #define REGNO_REG_CLASS(REGNO) \
748 ((REGNO) ? ((REGNO < 32) ? GENERAL_REGS : XRF_REGS) : AP_REG)
750 /* The class value for index registers, and the one for base regs. */
751 #define BASE_REG_CLASS AGRF_REGS
752 #define INDEX_REG_CLASS GENERAL_REGS
754 /* Get reg_class from a letter such as appears in the machine description.
755 For the 88000, the following class/letter is defined for the XRF:
756 x - Extended register file */
757 #define REG_CLASS_FROM_LETTER(C) \
758 (((C) == 'x') ? XRF_REGS : NO_REGS)
760 /* Macros to check register numbers against specific register classes.
761 These assume that REGNO is a hard or pseudo reg number.
762 They give nonzero only if REGNO is a hard reg of the suitable class
763 or a pseudo reg currently allocated to a suitable hard reg.
764 Since they use reg_renumber, they are safe only once reg_renumber
765 has been allocated, which happens in local-alloc.c. */
766 #define REGNO_OK_FOR_BASE_P(REGNO) \
767 ((REGNO) < FIRST_EXTENDED_REGISTER \
768 || (unsigned) reg_renumber[REGNO] < FIRST_EXTENDED_REGISTER)
769 #define REGNO_OK_FOR_INDEX_P(REGNO) \
770 (((REGNO) && (REGNO) < FIRST_EXTENDED_REGISTER) \
771 || (unsigned) reg_renumber[REGNO] < FIRST_EXTENDED_REGISTER)
773 /* Given an rtx X being reloaded into a reg required to be
774 in class CLASS, return the class of reg to actually use.
775 In general this is just CLASS; but on some machines
776 in some cases it is preferable to use a more restrictive class.
777 Double constants should be in a register iff they can be made cheaply. */
778 #define PREFERRED_RELOAD_CLASS(X,CLASS) \
779 (CONSTANT_P(X) && (CLASS == XRF_REGS) ? NO_REGS : (CLASS))
781 /* Return the maximum number of consecutive registers
782 needed to represent mode MODE in a register of class CLASS. */
783 #define CLASS_MAX_NREGS(CLASS, MODE) \
784 ((((CLASS) == XRF_REGS) ? 1 \
785 : ((GET_MODE_SIZE (MODE) + UNITS_PER_WORD - 1) / UNITS_PER_WORD)))
787 /* Letters in the range `I' through `P' in a register constraint string can
788 be used to stand for particular ranges of immediate operands. The C
789 expression is true iff C is a known letter and VALUE is appropriate for
792 For the m88000, the following constants are used:
793 `I' requires a non-negative 16-bit value.
794 `J' requires a non-positive 16-bit value.
796 `L' requires a constant with only the upper 16-bits set.
797 `M' requires constant values that can be formed with `set'.
798 `N' requires a negative value.
800 `P' requires a non-negative value. */
802 /* Quick tests for certain values. */
803 #define SMALL_INT(X) (SMALL_INTVAL (INTVAL (X)))
804 #define SMALL_INTVAL(I) ((unsigned) (I) < 0x10000)
805 #define ADD_INT(X) (ADD_INTVAL (INTVAL (X)))
806 #define ADD_INTVAL(I) ((unsigned) (I) + 0xffff < 0x1ffff)
807 #define POWER_OF_2(I) ((I) && POWER_OF_2_or_0(I))
808 #define POWER_OF_2_or_0(I) (((I) & ((unsigned)(I) - 1)) == 0)
810 #define CONST_OK_FOR_LETTER_P(VALUE, C) \
811 ((C) == 'I' ? SMALL_INTVAL (VALUE) \
812 : (C) == 'J' ? SMALL_INTVAL (-(VALUE)) \
813 : (C) == 'L' ? ((VALUE) & 0xffff) == 0 \
814 : (C) == 'M' ? integer_ok_for_set (VALUE) \
815 : (C) == 'N' ? (VALUE) < 0 \
816 : (C) == 'O' ? (VALUE) == 0 \
817 : (C) == 'P' ? (VALUE) >= 0 \
820 /* Similar, but for floating constants, and defining letters G and H.
821 Here VALUE is the CONST_DOUBLE rtx itself. For the m88000, the
822 constraints are: `G' requires zero, and `H' requires one or two. */
823 #define CONST_DOUBLE_OK_FOR_LETTER_P(VALUE, C) \
824 ((C) == 'G' ? (CONST_DOUBLE_HIGH (VALUE) == 0 \
825 && CONST_DOUBLE_LOW (VALUE) == 0) \
828 /* Letters in the range `Q' through `U' in a register constraint string
829 may be defined in a machine-dependent fashion to stand for arbitrary
832 For the m88k, `Q' handles addresses in a call context. */
834 #define EXTRA_CONSTRAINT(OP, C) \
835 ((C) == 'Q' ? symbolic_address_p (OP) : 0)
837 /*** Describing Stack Layout ***/
839 /* Define this if pushing a word on the stack moves the stack pointer
840 to a smaller address. */
841 #define STACK_GROWS_DOWNWARD
843 /* Define this if the addresses of local variable slots are at negative
844 offsets from the frame pointer. */
845 /* #define FRAME_GROWS_DOWNWARD */
847 /* Offset from the frame pointer to the first local variable slot to be
848 allocated. For the m88k, the debugger wants the return address (r1)
849 stored at location r30+4, and the previous frame pointer stored at
851 #define STARTING_FRAME_OFFSET 8
853 /* If we generate an insn to push BYTES bytes, this says how many the
854 stack pointer really advances by. The m88k has no push instruction. */
855 /* #define PUSH_ROUNDING(BYTES) */
857 /* If defined, the maximum amount of space required for outgoing arguments
858 will be computed and placed into the variable
859 `current_function_outgoing_args_size'. No space will be pushed
860 onto the stack for each call; instead, the function prologue should
861 increase the stack frame size by this amount. */
862 #define ACCUMULATE_OUTGOING_ARGS
864 /* Offset from the stack pointer register to the first location at which
865 outgoing arguments are placed. Use the default value zero. */
866 /* #define STACK_POINTER_OFFSET 0 */
868 /* Offset of first parameter from the argument pointer register value.
869 Using an argument pointer, this is 0 for the m88k. GCC knows
870 how to eliminate the argument pointer references if necessary. */
871 #define FIRST_PARM_OFFSET(FNDECL) 0
873 /* Define this if functions should assume that stack space has been
874 allocated for arguments even when their values are passed in
877 The value of this macro is the size, in bytes, of the area reserved for
878 arguments passed in registers.
880 This space can either be allocated by the caller or be a part of the
881 machine-dependent stack frame: `OUTGOING_REG_PARM_STACK_SPACE'
883 #define REG_PARM_STACK_SPACE(FNDECL) 32
885 /* Define this macro if REG_PARM_STACK_SPACE is defined but stack
886 parameters don't skip the area specified by REG_PARM_STACK_SPACE.
887 Normally, when a parameter is not passed in registers, it is placed on
888 the stack beyond the REG_PARM_STACK_SPACE area. Defining this macro
889 suppresses this behavior and causes the parameter to be passed on the
890 stack in its natural location. */
891 #define STACK_PARMS_IN_REG_PARM_AREA
893 /* Define this if it is the responsibility of the caller to allocate the
894 area reserved for arguments passed in registers. If
895 `ACCUMULATE_OUTGOING_ARGS' is also defined, the only effect of this
896 macro is to determine whether the space is included in
897 `current_function_outgoing_args_size'. */
898 /* #define OUTGOING_REG_PARM_STACK_SPACE */
900 /* Offset from the stack pointer register to an item dynamically allocated
901 on the stack, e.g., by `alloca'.
903 The default value for this macro is `STACK_POINTER_OFFSET' plus the
904 length of the outgoing arguments. The default is correct for most
905 machines. See `function.c' for details. */
906 /* #define STACK_DYNAMIC_OFFSET(FUNDECL) ... */
908 /* Value is the number of bytes of arguments automatically
909 popped when returning from a subroutine call.
910 FUNTYPE is the data type of the function (as a tree),
911 or for a library call it is an identifier node for the subroutine name.
912 SIZE is the number of bytes of arguments passed on the stack. */
913 #define RETURN_POPS_ARGS(FUNTYPE,SIZE) 0
915 /* Define how to find the value returned by a function.
916 VALTYPE is the data type of the value (as a tree).
917 If the precise function being called is known, FUNC is its FUNCTION_DECL;
918 otherwise, FUNC is 0. */
919 #define FUNCTION_VALUE(VALTYPE, FUNC) \
921 TYPE_MODE (VALTYPE) == BLKmode ? SImode : TYPE_MODE (VALTYPE), \
924 /* Define this if it differs from FUNCTION_VALUE. */
925 /* #define FUNCTION_OUTGOING_VALUE(VALTYPE, FUNC) ... */
927 /* Disable the promotion of some structures and unions to registers. */
928 #define RETURN_IN_MEMORY(TYPE) \
929 ((TREE_CODE (TYPE) == RECORD_TYPE || TREE_CODE(TYPE) == UNION_TYPE) \
930 && !(TYPE_MODE (TYPE) == SImode \
931 || (TYPE_MODE (TYPE) == BLKmode \
932 && TYPE_ALIGN (TYPE) == BITS_PER_WORD \
933 && int_size_in_bytes (TYPE) == UNITS_PER_WORD)))
935 /* Define how to find the value returned by a library function
936 assuming the value has mode MODE. */
937 #define LIBCALL_VALUE(MODE) gen_rtx (REG, MODE, 2)
939 /* True if N is a possible register number for a function value
940 as seen by the caller. */
941 #define FUNCTION_VALUE_REGNO_P(N) ((N) == 2)
943 /* Determine whether a function argument is passed in a register, and
944 which register. See m88k.c. */
945 #define FUNCTION_ARG(CUM, MODE, TYPE, NAMED) \
946 m88k_function_arg (CUM, MODE, TYPE, NAMED)
948 /* Define this if it differs from FUNCTION_ARG. */
949 /* #define FUNCTION_INCOMING_ARG(CUM, MODE, TYPE, NAMED) ... */
951 /* A C expression for the number of words, at the beginning of an
952 argument, must be put in registers. The value must be zero for
953 arguments that are passed entirely in registers or that are entirely
954 pushed on the stack. */
955 #define FUNCTION_ARG_PARTIAL_NREGS(CUM, MODE, TYPE, NAMED) (0)
957 /* A C expression that indicates when an argument must be passed by
958 reference. If nonzero for an argument, a copy of that argument is
959 made in memory and a pointer to the argument is passed instead of the
960 argument itself. The pointer is passed in whatever way is appropriate
961 for passing a pointer to that type. */
962 #define FUNCTION_ARG_PASS_BY_REFERENCE(CUM, MODE, TYPE, NAMED) (0)
964 /* A C type for declaring a variable that is used as the first argument
965 of `FUNCTION_ARG' and other related values. It suffices to count
966 the number of words of argument so far. */
967 #define CUMULATIVE_ARGS int
969 /* Initialize a variable CUM of type CUMULATIVE_ARGS for a call to a
970 function whose data type is FNTYPE. For a library call, FNTYPE is 0. */
971 #define INIT_CUMULATIVE_ARGS(CUM,FNTYPE,LIBNAME) ((CUM) = 0)
973 /* A C statement (sans semicolon) to update the summarizer variable
974 CUM to advance past an argument in the argument list. The values
975 MODE, TYPE and NAMED describe that argument. Once this is done,
976 the variable CUM is suitable for analyzing the *following* argument
977 with `FUNCTION_ARG', etc. (TYPE is null for libcalls where that
978 information may not be available.) */
979 #define FUNCTION_ARG_ADVANCE(CUM, MODE, TYPE, NAMED) \
981 enum machine_mode __mode = (TYPE) ? TYPE_MODE (TYPE) : (MODE); \
983 && (__mode == DImode || __mode == DFmode \
984 || ((TYPE) && TYPE_ALIGN (TYPE) > BITS_PER_WORD))) \
986 CUM += (((__mode != BLKmode) \
987 ? GET_MODE_SIZE (MODE) : int_size_in_bytes (TYPE)) \
991 /* True if N is a possible register number for function argument passing.
992 On the m88000, these are registers 2 through 9. */
993 #define FUNCTION_ARG_REGNO_P(N) ((N) <= 9 && (N) >= 2)
995 /* A C expression which determines whether, and in which direction,
996 to pad out an argument with extra space. The value should be of
997 type `enum direction': either `upward' to pad above the argument,
998 `downward' to pad below, or `none' to inhibit padding.
1000 This macro does not control the *amount* of padding; that is always
1001 just enough to reach the next multiple of `FUNCTION_ARG_BOUNDARY'. */
1002 #define FUNCTION_ARG_PADDING(MODE, TYPE) \
1003 ((MODE) == BLKmode \
1004 || ((TYPE) && (TREE_CODE (TYPE) == RECORD_TYPE \
1005 || TREE_CODE (TYPE) == UNION_TYPE)) \
1006 ? upward : GET_MODE_BITSIZE (MODE) < PARM_BOUNDARY ? downward : none)
1008 /* If defined, a C expression that gives the alignment boundary, in bits,
1009 of an argument with the specified mode and type. If it is not defined,
1010 `PARM_BOUNDARY' is used for all arguments. */
1011 #define FUNCTION_ARG_BOUNDARY(MODE, TYPE) \
1012 (((TYPE) ? TYPE_ALIGN (TYPE) : GET_MODE_SIZE (MODE)) <= PARM_BOUNDARY \
1013 ? PARM_BOUNDARY : 2 * PARM_BOUNDARY)
1015 /* Generate necessary RTL for __builtin_saveregs().
1016 ARGLIST is the argument list; see expr.c. */
1017 #define EXPAND_BUILTIN_SAVEREGS(ARGLIST) m88k_builtin_saveregs (ARGLIST)
1019 /* Generate the assembly code for function entry. */
1020 #define FUNCTION_PROLOGUE(FILE, SIZE) m88k_output_prologue(FILE, SIZE)
1022 /* Output assembler code to FILE to increment profiler label # LABELNO
1023 for profiling a function entry. Redefined in m88kv3.h, m88kv4.h and
1025 #define FUNCTION_PROFILER(FILE, LABELNO) \
1026 output_function_profiler (FILE, LABELNO, "mcount", 1)
1028 /* Output assembler code to FILE to initialize basic-block profiling for
1029 the current module. LABELNO is unique to each instance. */
1030 #define FUNCTION_BLOCK_PROFILER(FILE, LABELNO) \
1031 output_function_block_profiler (FILE, LABELNO)
1033 /* Output assembler code to FILE to increment the count associated with
1034 the basic block number BLOCKNO. */
1035 #define BLOCK_PROFILER(FILE, BLOCKNO) output_block_profiler (FILE, BLOCKNO)
1037 /* EXIT_IGNORE_STACK should be nonzero if, when returning from a function,
1038 the stack pointer does not matter. The value is tested only in
1039 functions that have frame pointers.
1040 No definition is equivalent to always zero. */
1041 #define EXIT_IGNORE_STACK (1)
1043 /* Generate the assembly code for function exit. */
1044 #define FUNCTION_EPILOGUE(FILE, SIZE) m88k_output_epilogue(FILE, SIZE)
1046 /* Define the number of delay slots needed for the function epilogue.
1047 These are used for scheduling the function epilogue and depend on
1048 what the epilogue looks like. */
1049 #define DELAY_SLOTS_FOR_EPILOGUE delay_slots_for_epilogue ()
1051 /* Define whether INSN can be placed in delay slot N for the epilogue. */
1052 #define ELIGIBLE_FOR_EPILOGUE_DELAY(INSN,N) \
1053 eligible_for_epilogue_delay (INSN)
1055 /* Value should be nonzero if functions must have frame pointers.
1056 Zero means the frame pointer need not be set up (and parms
1057 may be accessed via the stack pointer) in functions that seem suitable.
1058 This is computed in `reload', in reload1.c. */
1059 #define FRAME_POINTER_REQUIRED \
1060 (frame_pointer_needed \
1061 || (write_symbols != NO_DEBUG && !TARGET_OCS_FRAME_POSITION))
1063 /* Definitions for register eliminations.
1065 We have two registers that can be eliminated on the m88k. First, the
1066 frame pointer register can often be eliminated in favor of the stack
1067 pointer register. Secondly, the argument pointer register can always be
1068 eliminated; it is replaced with either the stack or frame pointer. */
1070 /* This is an array of structures. Each structure initializes one pair
1071 of eliminable registers. The "from" register number is given first,
1072 followed by "to". Eliminations of the same "from" register are listed
1073 in order of preference. */
1074 #define ELIMINABLE_REGS \
1075 {{ ARG_POINTER_REGNUM, STACK_POINTER_REGNUM}, \
1076 { ARG_POINTER_REGNUM, FRAME_POINTER_REGNUM}, \
1077 { FRAME_POINTER_REGNUM, STACK_POINTER_REGNUM}}
1079 /* Given FROM and TO register numbers, say whether this elimination
1081 #define CAN_ELIMINATE(FROM, TO) \
1082 (!((FROM) == FRAME_POINTER_REGNUM && FRAME_POINTER_REQUIRED))
1084 /* Define the offset between two registers, one to be eliminated, and the other
1085 its replacement, at the start of a routine. */
1086 #define INITIAL_ELIMINATION_OFFSET(FROM, TO, OFFSET) \
1087 { m88k_layout_frame (); \
1088 if ((FROM) == FRAME_POINTER_REGNUM && (TO) == STACK_POINTER_REGNUM) \
1089 (OFFSET) = m88k_fp_offset; \
1090 else if ((FROM) == ARG_POINTER_REGNUM && (TO) == FRAME_POINTER_REGNUM) \
1091 (OFFSET) = m88k_stack_size - m88k_fp_offset; \
1092 else if ((FROM) == ARG_POINTER_REGNUM && (TO) == STACK_POINTER_REGNUM) \
1093 (OFFSET) = m88k_stack_size; \
1098 /*** Trampolines for Nested Functions ***/
1100 /* Output assembler code for a block containing the constant parts
1101 of a trampoline, leaving space for the variable parts.
1103 This block is placed on the stack and filled in. It is aligned
1104 0 mod 128 and those portions that are executed are constant.
1105 This should work for instruction caches that have cache lines up
1106 to the aligned amount (128 is arbitrary), provided no other code
1107 producer is attempting to play the same game. This of course is
1108 in violation of any number of 88open standards. */
1110 #define TRAMPOLINE_TEMPLATE(FILE) \
1112 /* Save the return address (r1) in the static chain reg (r11). */ \
1113 fprintf (FILE, "\tor\t %s,%s,0\n", reg_names[11], reg_names[1]); \
1114 /* Locate this block; transfer to the next instruction. */ \
1115 fprintf (FILE, "\tbsr\t 1\n"); \
1116 /* Save r10; use it as the relative pointer; restore r1. */ \
1117 fprintf (FILE, "\tst\t %s,%s,24\n", reg_names[10], reg_names[1]); \
1118 fprintf (FILE, "\tor\t %s,%s,0\n", reg_names[10], reg_names[1]); \
1119 fprintf (FILE, "\tor\t %s,%s,0\n", reg_names[1], reg_names[11]); \
1120 /* Load the function's address and go there. */ \
1121 fprintf (FILE, "\tld\t %s,%s,32\n", reg_names[11], reg_names[10]); \
1122 fprintf (FILE, "\tjmp.n\t %s\n", reg_names[11]); \
1123 /* Restore r10 and load the static chain register. */ \
1124 fprintf (FILE, "\tld.d\t %s,%s,24\n", reg_names[10], reg_names[10]); \
1125 /* Storage: r10 save area, static chain, function address. */ \
1126 ASM_OUTPUT_INT (FILE, const0_rtx); \
1127 ASM_OUTPUT_INT (FILE, const0_rtx); \
1128 ASM_OUTPUT_INT (FILE, const0_rtx); \
1131 /* Length in units of the trampoline for entering a nested function.
1132 This is really two components. The first 32 bytes are fixed and
1133 must be copied; the last 12 bytes are just storage that's filled
1134 in later. So for allocation purposes, it's 32+12 bytes, but for
1135 initialization purposes, it's 32 bytes. */
1137 #define TRAMPOLINE_SIZE (32+12)
1139 /* Alignment required for a trampoline. 128 is used to find the
1140 beginning of a line in the instruction cache and to allow for
1141 instruction cache lines of up to 128 bytes. */
1143 #define TRAMPOLINE_ALIGNMENT 128
1145 /* Emit RTL insns to initialize the variable parts of a trampoline.
1146 FNADDR is an RTX for the address of the function's pure code.
1147 CXT is an RTX for the static chain value for the function. */
1149 #define INITIALIZE_TRAMPOLINE(TRAMP, FNADDR, CXT) \
1151 emit_move_insn (gen_rtx (MEM, SImode, plus_constant (TRAMP, 40)), FNADDR); \
1152 emit_move_insn (gen_rtx (MEM, SImode, plus_constant (TRAMP, 36)), CXT); \
1155 /*** Library Subroutine Names ***/
1157 /* Define this macro if GNU CC should generate calls to the System V
1158 (and ANSI C) library functions `memcpy' and `memset' rather than
1159 the BSD functions `bcopy' and `bzero'. */
1160 #define TARGET_MEM_FUNCTIONS
1162 /*** Addressing Modes ***/
1164 /* #define HAVE_POST_INCREMENT */
1165 /* #define HAVE_POST_DECREMENT */
1167 /* #define HAVE_PRE_DECREMENT */
1168 /* #define HAVE_PRE_INCREMENT */
1170 /* Recognize any constant value that is a valid address. */
1171 #define CONSTANT_ADDRESS_P(X) (CONSTANT_P (X))
1173 /* Maximum number of registers that can appear in a valid memory address. */
1174 #define MAX_REGS_PER_ADDRESS 2
1176 /* The condition for memory shift insns. */
1177 #define SCALED_ADDRESS_P(ADDR) \
1178 (GET_CODE (ADDR) == PLUS \
1179 && (GET_CODE (XEXP (ADDR, 0)) == MULT \
1180 || GET_CODE (XEXP (ADDR, 1)) == MULT))
1182 /* Can the reference to X be made short? */
1183 #define SHORT_ADDRESS_P(X,TEMP) \
1184 ((TEMP) = (GET_CODE (X) == CONST ? get_related_value (X) : X), \
1185 ((TEMP) && GET_CODE (TEMP) == SYMBOL_REF && SYMBOL_REF_FLAG (TEMP)))
1187 /* GO_IF_LEGITIMATE_ADDRESS recognizes an RTL expression
1188 that is a valid memory address for an instruction.
1189 The MODE argument is the machine mode for the MEM expression
1190 that wants to use this address.
1192 On the m88000, a legitimate address has the form REG, REG+REG,
1193 REG+SMALLINT, REG+(REG*modesize) (REG[REG]), or SMALLINT.
1195 The register elimination process should deal with the argument
1196 pointer and frame pointer changing to REG+SMALLINT. */
1198 #define LEGITIMATE_INDEX_P(X, MODE) \
1199 ((GET_CODE (X) == CONST_INT \
1202 && REG_OK_FOR_INDEX_P (X)) \
1203 || (GET_CODE (X) == MULT \
1204 && REG_P (XEXP (X, 0)) \
1205 && REG_OK_FOR_INDEX_P (XEXP (X, 0)) \
1206 && GET_CODE (XEXP (X, 1)) == CONST_INT \
1207 && INTVAL (XEXP (X, 1)) == GET_MODE_SIZE (MODE)))
1209 #define GO_IF_LEGITIMATE_ADDRESS(MODE, X, ADDR) \
1214 if (REG_OK_FOR_BASE_P (X)) \
1217 else if (GET_CODE (X) == PLUS) \
1219 register rtx _x0 = XEXP (X, 0); \
1220 register rtx _x1 = XEXP (X, 1); \
1222 && _x0 == pic_offset_table_rtx \
1225 : (GET_CODE (_x1) == SYMBOL_REF \
1226 || GET_CODE (_x1) == LABEL_REF))) \
1228 && (REG_OK_FOR_BASE_P (_x0) \
1229 && LEGITIMATE_INDEX_P (_x1, MODE))) \
1231 && (REG_OK_FOR_BASE_P (_x1) \
1232 && LEGITIMATE_INDEX_P (_x0, MODE)))) \
1235 else if (GET_CODE (X) == LO_SUM) \
1237 register rtx _x0 = XEXP (X, 0); \
1238 register rtx _x1 = XEXP (X, 1); \
1240 && REG_OK_FOR_BASE_P (_x0)) \
1241 || (GET_CODE (_x0) == SUBREG \
1242 && REG_P (SUBREG_REG (_x0)) \
1243 && REG_OK_FOR_BASE_P (SUBREG_REG (_x0)))) \
1244 && CONSTANT_P (_x1)) \
1247 else if (GET_CODE (X) == CONST_INT \
1250 else if (SHORT_ADDRESS_P (X, _x)) \
1254 /* The macros REG_OK_FOR..._P assume that the arg is a REG rtx
1255 and check its validity for a certain class.
1256 We have two alternate definitions for each of them.
1257 The usual definition accepts all pseudo regs; the other rejects
1258 them unless they have been allocated suitable hard regs.
1259 The symbol REG_OK_STRICT causes the latter definition to be used.
1261 Most source files want to accept pseudo regs in the hope that
1262 they will get allocated to the class that the insn wants them to be in.
1263 Source files for reload pass need to be strict.
1264 After reload, it makes no difference, since pseudo regs have
1265 been eliminated by then. */
1267 #ifndef REG_OK_STRICT
1269 /* Nonzero if X is a hard reg that can be used as an index
1270 or if it is a pseudo reg. Not the argument pointer. */
1271 #define REG_OK_FOR_INDEX_P(X) (X)
1272 /* Nonzero if X is a hard reg that can be used as a base reg
1273 or if it is a pseudo reg. */
1274 #define REG_OK_FOR_BASE_P(X) (1)
1278 /* Nonzero if X is a hard reg that can be used as an index. */
1279 #define REG_OK_FOR_INDEX_P(X) REGNO_OK_FOR_INDEX_P (REGNO (X))
1280 /* Nonzero if X is a hard reg that can be used as a base reg. */
1281 #define REG_OK_FOR_BASE_P(X) REGNO_OK_FOR_BASE_P (REGNO (X))
1285 /* Try machine-dependent ways of modifying an illegitimate address
1286 to be legitimate. If we find one, return the new, valid address.
1287 This macro is used in only one place: `memory_address' in explow.c.
1289 OLDX is the address as it was before break_out_memory_refs was called.
1290 In some cases it is useful to look at this to decide what needs to be done.
1292 MODE and WIN are passed so that this macro can use
1293 GO_IF_LEGITIMATE_ADDRESS.
1295 It is always safe for this macro to do nothing. It exists to recognize
1296 opportunities to optimize the output. */
1298 /* On the m88000, change REG+N into REG+REG, and REG+(X*Y) into REG+REG. */
1300 #define LEGITIMIZE_ADDRESS(X,OLDX,MODE,WIN) \
1302 if (GET_CODE (X) == PLUS && CONSTANT_ADDRESS_P (XEXP (X, 1))) \
1303 (X) = gen_rtx (PLUS, SImode, XEXP (X, 0), \
1304 copy_to_mode_reg (SImode, XEXP (X, 1))); \
1305 if (GET_CODE (X) == PLUS && CONSTANT_ADDRESS_P (XEXP (X, 0))) \
1306 (X) = gen_rtx (PLUS, SImode, XEXP (X, 1), \
1307 copy_to_mode_reg (SImode, XEXP (X, 0))); \
1308 if (GET_CODE (X) == PLUS && GET_CODE (XEXP (X, 0)) == MULT) \
1309 (X) = gen_rtx (PLUS, SImode, XEXP (X, 1), \
1310 force_operand (XEXP (X, 0), 0)); \
1311 if (GET_CODE (X) == PLUS && GET_CODE (XEXP (X, 1)) == MULT) \
1312 (X) = gen_rtx (PLUS, SImode, XEXP (X, 0), \
1313 force_operand (XEXP (X, 1), 0)); \
1314 if (GET_CODE (X) == SYMBOL_REF || GET_CODE (X) == CONST \
1315 || GET_CODE (X) == LABEL_REF) \
1316 (X) = legitimize_address (flag_pic, X, gen_reg_rtx (Pmode)); \
1317 if (memory_address_p (MODE, X)) \
1320 /* Go to LABEL if ADDR (a legitimate address expression)
1321 has an effect that depends on the machine mode it is used for.
1322 On the the m88000 this is never true. */
1324 #define GO_IF_MODE_DEPENDENT_ADDRESS(ADDR,LABEL)
1326 /* Nonzero if the constant value X is a legitimate general operand.
1327 It is given that X satisfies CONSTANT_P or is a CONST_DOUBLE. */
1328 #define LEGITIMATE_CONSTANT_P(X) (1)
1330 /*** Condition Code Information ***/
1332 /* C code for a data type which is used for declaring the `mdep'
1333 component of `cc_status'. It defaults to `int'. */
1334 /* #define CC_STATUS_MDEP int */
1336 /* A C expression to initialize the `mdep' field to "empty". */
1337 /* #define CC_STATUS_MDEP_INIT (cc_status.mdep = 0) */
1339 /* Macro to zap the normal portions of CC_STATUS, but leave the
1340 machine dependent parts (ie, literal synthesis) alone. */
1341 /* #define CC_STATUS_INIT_NO_MDEP \
1342 (cc_status.flags = 0, cc_status.value1 = 0, cc_status.value2 = 0) */
1344 /* When using a register to hold the condition codes, the cc_status
1345 mechanism cannot be used. */
1346 #define NOTICE_UPDATE_CC(EXP, INSN) (0)
1348 /*** Miscellaneous Parameters ***/
1350 /* Define the codes that are matched by predicates in m88k.c. */
1351 #define PREDICATE_CODES \
1352 {"move_operand", {SUBREG, REG, CONST_INT, LO_SUM, MEM}}, \
1353 {"call_address_operand", {SUBREG, REG, SYMBOL_REF, LABEL_REF, CONST}}, \
1354 {"arith_operand", {SUBREG, REG, CONST_INT}}, \
1355 {"arith5_operand", {SUBREG, REG, CONST_INT}}, \
1356 {"arith32_operand", {SUBREG, REG, CONST_INT}}, \
1357 {"arith64_operand", {SUBREG, REG, CONST_INT}}, \
1358 {"int5_operand", {CONST_INT}}, \
1359 {"int32_operand", {CONST_INT}}, \
1360 {"add_operand", {SUBREG, REG, CONST_INT}}, \
1361 {"reg_or_bbx_mask_operand", {SUBREG, REG, CONST_INT}}, \
1362 {"real_or_0_operand", {SUBREG, REG, CONST_DOUBLE}}, \
1363 {"relop", {EQ, NE, LT, LE, GE, GT, LTU, LEU, GEU, GTU}}, \
1364 {"relop_no_unsigned", {EQ, NE, LT, LE, GE, GT}}, \
1365 {"equality_op", {EQ, NE}}, \
1366 {"pc_or_label_ref", {PC, LABEL_REF}},
1368 /* An alias for a machine mode name. This is the machine mode that
1369 elements of a jump-table should have. */
1370 #define CASE_VECTOR_MODE SImode
1372 /* Define this macro if jump-tables should contain relative addresses. */
1373 #define CASE_VECTOR_PC_RELATIVE
1375 /* Define this if control falls through a `case' insn when the index
1376 value is out of range. This means the specified default-label is
1377 actually ignored by the `case' insn proper. */
1378 /* #define CASE_DROPS_THROUGH */
1380 /* Specify the tree operation to be used to convert reals to integers. */
1381 #define IMPLICIT_FIX_EXPR FIX_ROUND_EXPR
1383 /* This is the kind of divide that is easiest to do in the general case. */
1384 #define EASY_DIV_EXPR TRUNC_DIV_EXPR
1386 /* Define this as 1 if `char' should by default be signed; else as 0. */
1387 #define DEFAULT_SIGNED_CHAR 1
1389 /* The 88open ABI says size_t is unsigned int. */
1390 #define SIZE_TYPE "unsigned int"
1392 /* Allow and ignore #sccs directives */
1393 #define SCCS_DIRECTIVE
1395 /* Code to handle #pragma directives. The interface is a bit messy,
1396 but there's no simpler way to do this while still using yylex. */
1397 #define HANDLE_PRAGMA(FILE) \
1399 while (c == ' ' || c == '\t') \
1401 if (c == '\n' || c == EOF) \
1403 m88k_handle_pragma_token (0, 0); \
1413 m88k_handle_pragma_token (token_buffer, yylval.ttype); \
1416 m88k_handle_pragma_token (token_buffer, 0); \
1418 if (nextchar >= 0) \
1419 c = nextchar, nextchar = -1; \
1424 /* Tell when to handle #pragma weak. This is only done for V.4. */
1425 #define HANDLE_PRAGMA_WEAK TARGET_SVR4
1427 /* Max number of bytes we can move from memory to memory
1428 in one reasonably fast instruction. */
1431 /* Define if normal loads of shorter-than-word items from memory clears
1432 the rest of the bigs in the register. */
1433 #define BYTE_LOADS_ZERO_EXTEND
1435 /* Zero if access to memory by bytes is faster. */
1436 #define SLOW_BYTE_ACCESS 1
1438 /* Value is 1 if truncating an integer of INPREC bits to OUTPREC bits
1439 is done just by pretending it is already truncated. */
1440 #define TRULY_NOOP_TRUNCATION(OUTPREC, INPREC) 1
1442 /* Define this if addresses of constant functions
1443 shouldn't be put through pseudo regs where they can be cse'd.
1444 Desirable on machines where ordinary constants are expensive
1445 but a CALL with constant address is cheap. */
1446 #define NO_FUNCTION_CSE
1448 /* Define this macro if an argument declared as `char' or
1449 `short' in a prototype should actually be passed as an
1450 `int'. In addition to avoiding errors in certain cases of
1451 mismatch, it also makes for better code on certain machines. */
1452 #define PROMOTE_PROTOTYPES
1454 /* Define this macro if a float function always returns float
1455 (even in traditional mode). Redefined in m88kluna.h. */
1456 #define TRADITIONAL_RETURN_FLOAT
1458 /* We assume that the store-condition-codes instructions store 0 for false
1459 and some other value for true. This is the value stored for true. */
1460 #define STORE_FLAG_VALUE -1
1462 /* Specify the machine mode that pointers have.
1463 After generation of rtl, the compiler makes no further distinction
1464 between pointers and any other objects of this machine mode. */
1465 #define Pmode SImode
1467 /* A function address in a call instruction
1468 is a word address (for indexing purposes)
1469 so give the MEM rtx word mode. */
1470 #define FUNCTION_MODE SImode
1472 /* A barrier will be aligned so account for the possible expansion. */
1473 #define ADJUST_INSN_LENGTH(INSN, LENGTH) \
1474 if (GET_CODE (INSN) == BARRIER) \
1477 /* Compute the cost of computing a constant rtl expression RTX
1478 whose rtx-code is CODE. The body of this macro is a portion
1479 of a switch statement. If the code is computed here,
1480 return it with a return statement. Otherwise, break from the switch.
1482 We assume that any 16 bit integer can easily be recreated, so we
1483 indicate 0 cost, in an attempt to get GCC not to optimize things
1484 like comparison against a constant.
1486 The cost of CONST_DOUBLE is zero (if it can be placed in an insn, it
1487 is as good as a register; since it can't be placed in any insn, it
1488 won't do anything in cse, but it will cause expand_binop to pass the
1489 constant to the define_expands). */
1490 #define CONST_COSTS(RTX,CODE,OUTER_CODE) \
1492 if (SMALL_INT (RTX)) \
1494 else if (SMALL_INTVAL (- INTVAL (RTX))) \
1496 else if (classify_integer (SImode, INTVAL (RTX)) != m88k_oru_or) \
1505 return (flag_pic == 2) ? 11 : 8; \
1507 case CONST_DOUBLE: \
1510 /* Provide the costs of an addressing mode that contains ADDR.
1511 If ADDR is not a valid address, its cost is irrelevant.
1512 REG+REG is made slightly more expensive because it might keep
1513 a register live for longer than we might like. */
1514 #define ADDRESS_COST(ADDR) \
1515 (GET_CODE (ADDR) == REG ? 1 : \
1516 GET_CODE (ADDR) == LO_SUM ? 1 : \
1517 GET_CODE (ADDR) == HIGH ? 2 : \
1518 GET_CODE (ADDR) == MULT ? 1 : \
1519 GET_CODE (ADDR) != PLUS ? 4 : \
1520 (REG_P (XEXP (ADDR, 0)) && REG_P (XEXP (ADDR, 1))) ? 2 : 1)
1522 /* Provide the costs of a rtl expression. This is in the body of a
1524 #define RTX_COSTS(X,CODE,OUTER_CODE) \
1526 return COSTS_N_INSNS (2); \
1528 return COSTS_N_INSNS (3); \
1533 return COSTS_N_INSNS (38);
1535 /* A C expressions returning the cost of moving data of MODE from a register
1536 to or from memory. This is more costly than between registers. */
1537 #define MEMORY_MOVE_COST(MODE) 4
1539 /* Provide the cost of a branch. Exact meaning under development. */
1540 #define BRANCH_COST (TARGET_88100 ? 1 : 2)
1542 /* Define this to be nonzero if the character `$' should be allowed
1543 by default in identifier names. */
1544 #define DOLLARS_IN_IDENTIFIERS 1
1546 /* Do not break .stabs pseudos into continuations. */
1547 #define DBX_CONTIN_LENGTH 0
1549 /*** Output of Assembler Code ***/
1551 /* Control the assembler format that we output. */
1553 /* Which assembler syntax. Redefined in m88kdgux.h. */
1554 #define VERSION_0300_SYNTAX TARGET_SVR4
1556 /* Allow pseudo-ops to be overridden. Override these in svr[34].h. */
1558 #undef ASCII_DATA_ASM_OP
1559 #undef CONST_SECTION_ASM_OP
1560 #undef CTORS_SECTION_ASM_OP
1561 #undef DTORS_SECTION_ASM_OP
1562 #undef INIT_SECTION_ASM_OP
1563 #undef FINI_SECTION_ASM_OP
1568 #undef COMMON_ASM_OP
1570 /* These are used in varasm.c as well. */
1571 #define TEXT_SECTION_ASM_OP "text"
1572 #define DATA_SECTION_ASM_OP "data"
1574 /* Other sections. */
1575 #define CONST_SECTION_ASM_OP (VERSION_0300_SYNTAX \
1576 ? "section\t .rodata,\"a\"" \
1577 : "section\t .rodata,\"x\"")
1578 #define TDESC_SECTION_ASM_OP (VERSION_0300_SYNTAX \
1579 ? "section\t .tdesc,\"a\"" \
1580 : "section\t .tdesc,\"x\"")
1582 /* These must be constant strings for crtstuff.c. */
1583 #define CTORS_SECTION_ASM_OP "section\t .ctors,\"d\""
1584 #define DTORS_SECTION_ASM_OP "section\t .dtors,\"d\""
1585 #define INIT_SECTION_ASM_OP "section\t .init,\"x\""
1586 #define FINI_SECTION_ASM_OP "section\t .fini,\"x\""
1588 /* These are pretty much common to all assemblers. */
1589 #define IDENT_ASM_OP "ident"
1590 #define FILE_ASM_OP "file"
1591 #define SECTION_ASM_OP "section"
1592 #define DEF_ASM_OP "def"
1593 #define GLOBAL_ASM_OP "global"
1594 #define ALIGN_ASM_OP "align"
1595 #define SKIP_ASM_OP "zero"
1596 #define COMMON_ASM_OP "comm"
1597 #define BSS_ASM_OP "bss"
1598 #define FLOAT_ASM_OP "float"
1599 #define DOUBLE_ASM_OP "double"
1600 #define INT_ASM_OP "word"
1601 #define ASM_LONG INT_ASM_OP
1602 #define SHORT_ASM_OP "half"
1603 #define CHAR_ASM_OP "byte"
1604 #define ASCII_DATA_ASM_OP "string"
1606 /* These are particular to the global pool optimization. */
1607 #define SBSS_ASM_OP "sbss"
1608 #define SCOMM_ASM_OP "scomm"
1609 #define SDATA_SECTION_ASM_OP "sdata"
1611 /* These are specific to PIC. */
1612 #define TYPE_ASM_OP "type"
1613 #define SIZE_ASM_OP "size"
1614 #define WEAK_ASM_OP "weak"
1615 #ifndef AS_BUG_POUND_TYPE /* Faulty assemblers require @ rather than #. */
1616 #undef TYPE_OPERAND_FMT
1617 #define TYPE_OPERAND_FMT "#%s"
1620 /* These are specific to version 03.00 assembler syntax. */
1621 #define INTERNAL_ASM_OP "local"
1622 #define VERSION_ASM_OP "version"
1623 #define UNALIGNED_SHORT_ASM_OP "uahalf"
1624 #define UNALIGNED_INT_ASM_OP "uaword"
1625 #define PUSHSECTION_ASM_OP "section"
1626 #define POPSECTION_ASM_OP "previous"
1628 /* Output any initial stuff to the assembly file. Always put out
1629 a file directive, even if not debugging.
1631 Immediately after putting out the file, put out a "sem.<value>"
1632 declaration. This should be harmless on other systems, and
1633 is used in DG/UX by the debuggers to supplement COFF. The
1634 fields in the integer value are as follows:
1638 0-1 0 No information about stack locations
1639 1 Auto/param locations are based on r30
1640 2 Auto/param locations are based on CFA
1642 3-2 0 No information on dimension order
1643 1 Array dims in sym table matches source language
1644 2 Array dims in sym table is in reverse order
1646 5-4 0 No information about the case of global names
1647 1 Global names appear in the symbol table as in the source
1648 2 Global names have been converted to lower case
1649 3 Global names have been converted to upper case. */
1651 #ifdef SDB_DEBUGGING_INFO
1652 #define ASM_COFFSEM(FILE) \
1653 if (write_symbols == SDB_DEBUG) \
1655 fprintf (FILE, "\nsem.%x:\t\t; %s\n", \
1656 (((TARGET_OCS_FRAME_POSITION) ? 2 : 1) << 0) + (1 << 2) + (1 << 4),\
1657 (TARGET_OCS_FRAME_POSITION) \
1658 ? "frame is CFA, normal array dims, case unchanged" \
1659 : "frame is r30, normal array dims, case unchanged"); \
1662 #define ASM_COFFSEM(FILE)
1665 /* Output the first line of the assembly file. Redefined in m88kdgux.h. */
1667 #define ASM_FIRST_LINE(FILE) \
1669 if (VERSION_0300_SYNTAX) \
1670 fprintf (FILE, "\t%s\t \"03.00\"\n", VERSION_ASM_OP); \
1673 /* Override svr[34].h. */
1674 #undef ASM_FILE_START
1675 #define ASM_FILE_START(FILE) \
1676 output_file_start (FILE, f_options, sizeof f_options / sizeof f_options[0], \
1677 W_options, sizeof W_options / sizeof W_options[0])
1681 #define ASM_OUTPUT_SOURCE_FILENAME(FILE, NAME) \
1682 fprintf (FILE, "\t%s\t \"%s\"\n", FILE_ASM_OP, NAME)
1684 #ifdef SDB_DEBUGGING_INFO
1685 #define ASM_OUTPUT_SOURCE_LINE(FILE, LINE) \
1686 if (m88k_prologue_done) \
1687 fprintf (FILE, "\n\tln\t %d\t\t\t\t; Real source line %d\n",\
1688 LINE - sdb_begin_function_line, LINE)
1691 /* Code to handle #ident directives. Override svr[34].h definition. */
1692 #undef ASM_OUTPUT_IDENT
1693 #ifdef DBX_DEBUGGING_INFO
1694 #define ASM_OUTPUT_IDENT(FILE, NAME)
1696 #define ASM_OUTPUT_IDENT(FILE, NAME) \
1697 output_ascii (FILE, IDENT_ASM_OP, 4000, NAME, strlen (NAME));
1700 /* Output to assembler file text saying following lines
1701 may contain character constants, extra white space, comments, etc. */
1702 #define ASM_APP_ON ""
1704 /* Output to assembler file text saying following lines
1705 no longer contain unusual constructs. */
1706 #define ASM_APP_OFF ""
1708 /* Format the assembly opcode so that the arguments are all aligned.
1709 The maximum instruction size is 8 characters (fxxx.xxx), so a tab and a
1710 space will do to align the output. Abandon the output if a `%' is
1712 #define ASM_OUTPUT_OPCODE(STREAM, PTR) \
1717 for (orig_ptr = (PTR); \
1718 (ch = *(PTR)) && ch != ' ' && ch != '\t' && ch != '\n' && ch != '%'; \
1720 putc (ch, STREAM); \
1722 if (ch == ' ' && orig_ptr != (PTR) && (PTR) - orig_ptr < 8) \
1723 putc ('\t', STREAM); \
1726 /* How to refer to registers in assembler output.
1727 This sequence is indexed by compiler's hard-register-number.
1728 Updated by OVERRIDE_OPTIONS to include the # for version 03.00 syntax. */
1730 #define REGISTER_NAMES \
1731 {"#r0"+1, "#r1"+1, "#r2"+1, "#r3"+1, "#r4"+1, "#r5"+1, "#r6"+1, "#r7"+1, \
1732 "#r8"+1, "#r9"+1, "#r10"+1,"#r11"+1,"#r12"+1,"#r13"+1,"#r14"+1,"#r15"+1,\
1733 "#r16"+1,"#r17"+1,"#r18"+1,"#r19"+1,"#r20"+1,"#r21"+1,"#r22"+1,"#r23"+1,\
1734 "#r24"+1,"#r25"+1,"#r26"+1,"#r27"+1,"#r28"+1,"#r29"+1,"#r30"+1,"#r31"+1,\
1735 "#x0"+1, "#x1"+1, "#x2"+1, "#x3"+1, "#x4"+1, "#x5"+1, "#x6"+1, "#x7"+1, \
1736 "#x8"+1, "#x9"+1, "#x10"+1,"#x11"+1,"#x12"+1,"#x13"+1,"#x14"+1,"#x15"+1,\
1737 "#x16"+1,"#x17"+1,"#x18"+1,"#x19"+1,"#x20"+1,"#x21"+1,"#x22"+1,"#x23"+1,\
1738 "#x24"+1,"#x25"+1,"#x26"+1,"#x27"+1,"#x28"+1,"#x29"+1,"#x30"+1,"#x31"+1}
1740 /* How to renumber registers for dbx and gdb. */
1741 #define DBX_REGISTER_NUMBER(REGNO) (REGNO)
1743 /* Tell when to declare ASM names. Override svr4.h to provide this hook. */
1744 #undef DECLARE_ASM_NAME
1745 #define DECLARE_ASM_NAME TARGET_SVR4
1747 /* Write the extra assembler code needed to declare a function properly. */
1748 #undef ASM_DECLARE_FUNCTION_NAME
1749 #define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL) \
1751 if (DECLARE_ASM_NAME) \
1753 fprintf (FILE, "\t%s\t ", TYPE_ASM_OP); \
1754 assemble_name (FILE, NAME); \
1756 fprintf (FILE, TYPE_OPERAND_FMT, "function"); \
1757 putc ('\n', FILE); \
1759 ASM_OUTPUT_LABEL(FILE, NAME); \
1762 /* Write the extra assembler code needed to declare an object properly. */
1763 #undef ASM_DECLARE_OBJECT_NAME
1764 #define ASM_DECLARE_OBJECT_NAME(FILE, NAME, DECL) \
1766 if (DECLARE_ASM_NAME) \
1768 fprintf (FILE, "\t%s\t ", TYPE_ASM_OP); \
1769 assemble_name (FILE, NAME); \
1771 fprintf (FILE, TYPE_OPERAND_FMT, "object"); \
1772 putc ('\n', FILE); \
1773 if (!flag_inhibit_size_directive) \
1775 fprintf (FILE, "\t%s\t ", SIZE_ASM_OP); \
1776 assemble_name (FILE, NAME); \
1777 fprintf (FILE, ",%d\n", int_size_in_bytes (TREE_TYPE (decl))); \
1780 ASM_OUTPUT_LABEL(FILE, NAME); \
1783 /* This is how to declare the size of a function. */
1784 #undef ASM_DECLARE_FUNCTION_SIZE
1785 #define ASM_DECLARE_FUNCTION_SIZE(FILE, FNAME, DECL) \
1787 if (DECLARE_ASM_NAME) \
1789 if (!flag_inhibit_size_directive) \
1792 static int labelno; \
1794 ASM_GENERATE_INTERNAL_LABEL (label, "Lfe", labelno); \
1795 ASM_OUTPUT_INTERNAL_LABEL (FILE, "Lfe", labelno); \
1796 fprintf (FILE, "\t%s\t ", SIZE_ASM_OP); \
1797 assemble_name (FILE, (FNAME)); \
1798 fprintf (FILE, ",%s-", &label[1]); \
1799 assemble_name (FILE, (FNAME)); \
1800 putc ('\n', FILE); \
1805 /* This is how to output the definition of a user-level label named NAME,
1806 such as the label on a static function or variable NAME. */
1807 #define ASM_OUTPUT_LABEL(FILE,NAME) \
1808 do { assemble_name (FILE, NAME); fputs (":\n", FILE); } while (0)
1810 /* This is how to output a command to make the user-level label named NAME
1811 defined for reference from other files. */
1812 #define ASM_GLOBALIZE_LABEL(FILE,NAME) \
1814 fprintf (FILE, "\t%s\t ", GLOBAL_ASM_OP); \
1815 assemble_name (FILE, NAME); \
1816 putc ('\n', FILE); \
1819 /* This is how to output a reference to a user-level label named NAME.
1820 Override svr[34].h. */
1821 #undef ASM_OUTPUT_LABELREF
1822 #define ASM_OUTPUT_LABELREF(FILE,NAME) \
1824 if (! TARGET_NO_UNDERSCORES && ! VERSION_0300_SYNTAX) \
1825 fputc ('_', FILE); \
1826 fputs (NAME, FILE); \
1829 /* This is how to output an internal numbered label where
1830 PREFIX is the class of label and NUM is the number within the class.
1831 For V.4, labels use `.' rather than `@'. */
1833 #undef ASM_OUTPUT_INTERNAL_LABEL
1834 #ifdef AS_BUG_DOT_LABELS /* The assembler requires a declaration of local. */
1835 #define ASM_OUTPUT_INTERNAL_LABEL(FILE,PREFIX,NUM) \
1836 fprintf (FILE, VERSION_0300_SYNTAX ? ".%s%d:\n\t%s\t .%s%d\n" : "@%s%d:\n", \
1837 PREFIX, NUM, INTERNAL_ASM_OP, PREFIX, NUM)
1839 #define ASM_OUTPUT_INTERNAL_LABEL(FILE,PREFIX,NUM) \
1840 fprintf (FILE, VERSION_0300_SYNTAX ? ".%s%d:\n" : "@%s%d:\n", PREFIX, NUM)
1841 #endif /* AS_BUG_DOT_LABELS */
1843 /* This is how to store into the string LABEL
1844 the symbol_ref name of an internal numbered label where
1845 PREFIX is the class of label and NUM is the number within the class.
1846 This is suitable for output with `assemble_name'. This must agree
1847 with ASM_OUTPUT_INTERNAL_LABEL above, except for being prefixed
1850 #undef ASM_GENERATE_INTERNAL_LABEL
1851 #define ASM_GENERATE_INTERNAL_LABEL(LABEL,PREFIX,NUM) \
1852 sprintf (LABEL, VERSION_0300_SYNTAX ? "*.%s%d" : "*@%s%d", PREFIX, NUM)
1854 /* Internal macro to get a single precision floating point value into
1855 an int, so we can print it's value in hex. */
1856 #define FLOAT_TO_INT_INTERNAL( FVALUE, IVALUE ) \
1858 REAL_VALUE_TYPE d; \
1860 unsigned sign : 1; \
1861 unsigned exponent1 : 1; \
1862 unsigned exponent2 : 3; \
1863 unsigned exponent3 : 7; \
1864 unsigned mantissa1 : 20; \
1865 unsigned mantissa2 : 3; \
1866 unsigned mantissa3 : 29; \
1873 unsigned sign : 1; \
1874 unsigned exponent1 : 1; \
1875 unsigned exponent3 : 7; \
1876 unsigned mantissa1 : 20; \
1877 unsigned mantissa2 : 3; \
1881 _u.d = REAL_VALUE_TRUNCATE (SFmode, FVALUE); \
1882 _u2.s.sign = _u.s.sign; \
1883 _u2.s.exponent1 = _u.s.exponent1; \
1884 _u2.s.exponent3 = _u.s.exponent3; \
1885 _u2.s.mantissa1 = _u.s.mantissa1; \
1886 _u2.s.mantissa2 = _u.s.mantissa2; \
1890 /* This is how to output an assembler line defining a `double' constant.
1891 Use "word" pseudos to avoid printing NaNs, infinity, etc. */
1892 #define ASM_OUTPUT_DOUBLE(FILE,VALUE) \
1894 union { REAL_VALUE_TYPE d; long l[2]; } x; \
1896 fprintf (FILE, "\t%s\t 0x%.8x, 0x%.8x\n", INT_ASM_OP, \
1900 /* This is how to output an assembler line defining a `float' constant. */
1901 #define ASM_OUTPUT_FLOAT(FILE,VALUE) \
1904 FLOAT_TO_INT_INTERNAL (VALUE, i); \
1905 fprintf (FILE, "\t%s\t 0x%.8x\n", INT_ASM_OP, i); \
1908 /* Likewise for `int', `short', and `char' constants. */
1909 #define ASM_OUTPUT_INT(FILE,VALUE) \
1910 ( fprintf (FILE, "\t%s\t ", INT_ASM_OP), \
1911 output_addr_const (FILE, (VALUE)), \
1912 fprintf (FILE, "\n"))
1914 #define ASM_OUTPUT_SHORT(FILE,VALUE) \
1915 ( fprintf (FILE, "\t%s\t ", SHORT_ASM_OP), \
1916 output_addr_const (FILE, (VALUE)), \
1917 fprintf (FILE, "\n"))
1919 #define ASM_OUTPUT_CHAR(FILE,VALUE) \
1920 ( fprintf (FILE, "\t%s\t ", CHAR_ASM_OP), \
1921 output_addr_const (FILE, (VALUE)), \
1922 fprintf (FILE, "\n"))
1924 /* This is how to output an assembler line for a numeric constant byte. */
1925 #define ASM_OUTPUT_BYTE(FILE,VALUE) \
1926 fprintf (FILE, "\t%s\t 0x%x\n", CHAR_ASM_OP, (VALUE))
1928 /* The singl-byte pseudo-op is the default. Override svr[34].h. */
1930 #define ASM_BYTE_OP "\tbyte"
1931 #undef ASM_OUTPUT_ASCII
1932 #define ASM_OUTPUT_ASCII(FILE, P, SIZE) \
1933 output_ascii (FILE, ASCII_DATA_ASM_OP, 48, P, SIZE)
1935 /* Epilogue for case labels. This jump instruction is called by casesi
1936 to transfer to the appropriate branch instruction within the table.
1937 The label `@L<n>e' is coined to mark the end of the table. */
1938 #define ASM_OUTPUT_CASE_END(FILE, NUM, TABLE) \
1941 ASM_GENERATE_INTERNAL_LABEL (label, "L", NUM); \
1942 fprintf (FILE, "%se:\n", &label[1]); \
1943 if (! flag_delayed_branch) \
1944 fprintf (FILE, "\tlda\t %s,%s[%s]\n", reg_names[1], reg_names[1], \
1945 reg_names[m88k_case_index]); \
1946 fprintf (FILE, "\tjmp\t %s\n", reg_names[1]); \
1949 /* This is how to output an element of a case-vector that is absolute. */
1950 #define ASM_OUTPUT_ADDR_VEC_ELT(FILE, VALUE) \
1953 ASM_GENERATE_INTERNAL_LABEL (buffer, "L", VALUE); \
1954 fprintf (FILE, "\tbr\t %s\n", &buffer[1]); \
1957 /* This is how to output an element of a case-vector that is relative. */
1958 #define ASM_OUTPUT_ADDR_DIFF_ELT(FILE, VALUE, REL) \
1959 ASM_OUTPUT_ADDR_VEC_ELT (FILE, VALUE)
1961 /* This is how to output an assembler line
1962 that says to advance the location counter
1963 to a multiple of 2**LOG bytes. */
1964 #define ASM_OUTPUT_ALIGN(FILE,LOG) \
1966 fprintf (FILE, "\t%s\t %d\n", ALIGN_ASM_OP, 1<<(LOG))
1968 /* Align the text address to half a cache boundary when it can only be
1969 reached by jumping. Pack code tightly when compiling crtstuff.c. */
1970 #define ASM_OUTPUT_ALIGN_CODE(FILE) \
1971 ASM_OUTPUT_ALIGN (FILE, (flag_inhibit_size_directive ? 2 : 3))
1973 /* Override svr[34].h. */
1974 #undef ASM_OUTPUT_SKIP
1975 #define ASM_OUTPUT_SKIP(FILE,SIZE) \
1976 fprintf (FILE, "\t%s\t %u\n", SKIP_ASM_OP, (SIZE))
1978 /* Override svr4.h. */
1979 #undef ASM_OUTPUT_EXTERNAL_LIBCALL
1981 /* This says how to output an assembler line to define a global common
1982 symbol. Size can be zero for the unusual case of a `struct { int : 0; }'.
1983 Override svr[34].h. */
1984 #undef ASM_OUTPUT_COMMON
1985 #undef ASM_OUTPUT_ALIGNED_COMMON
1986 #define ASM_OUTPUT_COMMON(FILE, NAME, SIZE, ROUNDED) \
1987 ( fprintf ((FILE), "\t%s\t ", \
1988 ((SIZE) ? (SIZE) : 1) <= m88k_gp_threshold ? SCOMM_ASM_OP : COMMON_ASM_OP), \
1989 assemble_name ((FILE), (NAME)), \
1990 fprintf ((FILE), ",%u\n", (SIZE) ? (SIZE) : 1))
1992 /* This says how to output an assembler line to define a local common
1993 symbol. Override svr[34].h. */
1994 #undef ASM_OUTPUT_LOCAL
1995 #undef ASM_OUTPUT_ALIGNED_LOCAL
1996 #define ASM_OUTPUT_LOCAL(FILE, NAME, SIZE, ROUNDED) \
1997 ( fprintf ((FILE), "\t%s\t ", \
1998 ((SIZE) ? (SIZE) : 1) <= m88k_gp_threshold ? SBSS_ASM_OP : BSS_ASM_OP), \
1999 assemble_name ((FILE), (NAME)), \
2000 fprintf ((FILE), ",%u,%d\n", (SIZE) ? (SIZE) : 1, (SIZE) <= 4 ? 4 : 8))
2002 /* Store in OUTPUT a string (made with alloca) containing
2003 an assembler-name for a local static variable named NAME.
2004 LABELNO is an integer which is different for each call. */
2005 #define ASM_FORMAT_PRIVATE_NAME(OUTPUT, NAME, LABELNO) \
2006 ( (OUTPUT) = (char *) alloca (strlen ((NAME)) + 10), \
2007 sprintf ((OUTPUT), "%s.%d", (NAME), (LABELNO)))
2009 /* This is how to output an insn to push a register on the stack.
2010 It need not be very fast code. */
2011 #define ASM_OUTPUT_REG_PUSH(FILE,REGNO) \
2012 fprintf (FILE, "\tsubu\t %s,%s,%d\n\tst\t %s,%s,0\n", \
2013 reg_names[STACK_POINTER_REGNUM], \
2014 reg_names[STACK_POINTER_REGNUM], \
2015 (STACK_BOUNDARY / BITS_PER_UNIT), \
2017 reg_names[STACK_POINTER_REGNUM])
2019 /* This is how to output an insn to pop a register from the stack. */
2020 #define ASM_OUTPUT_REG_POP(FILE,REGNO) \
2021 fprintf (FILE, "\tld\t %s,%s,0\n\taddu\t %s,%s,%d\n", \
2023 reg_names[STACK_POINTER_REGNUM], \
2024 reg_names[STACK_POINTER_REGNUM], \
2025 reg_names[STACK_POINTER_REGNUM], \
2026 (STACK_BOUNDARY / BITS_PER_UNIT))
2028 /* Define the parentheses used to group arithmetic operations
2029 in assembler code. */
2030 #define ASM_OPEN_PAREN "("
2031 #define ASM_CLOSE_PAREN ")"
2033 /* Define results of standard character escape sequences. */
2034 #define TARGET_BELL 007
2035 #define TARGET_BS 010
2036 #define TARGET_TAB 011
2037 #define TARGET_NEWLINE 012
2038 #define TARGET_VT 013
2039 #define TARGET_FF 014
2040 #define TARGET_CR 015
2042 /* Macros to deal with OCS debug information */
2044 #define OCS_START_PREFIX "Ltb"
2045 #define OCS_END_PREFIX "Lte"
2047 #define PUT_OCS_FUNCTION_START(FILE) \
2048 { ASM_OUTPUT_INTERNAL_LABEL (FILE, OCS_START_PREFIX, m88k_function_number); }
2050 #define PUT_OCS_FUNCTION_END(FILE) \
2051 { ASM_OUTPUT_INTERNAL_LABEL (FILE, OCS_END_PREFIX, m88k_function_number); }
2053 /* Macros for debug information */
2054 #define DEBUGGER_AUTO_OFFSET(X) \
2055 (m88k_debugger_offset (X, 0) \
2056 + (TARGET_OCS_FRAME_POSITION ? 0 : m88k_stack_size - m88k_fp_offset))
2058 #define DEBUGGER_ARG_OFFSET(OFFSET, X) \
2059 (m88k_debugger_offset (X, OFFSET) \
2060 + (TARGET_OCS_FRAME_POSITION ? 0 : m88k_stack_size - m88k_fp_offset))
2062 /* Macros to deal with SDB debug information */
2063 #ifdef SDB_DEBUGGING_INFO
2065 /* Output structure tag names even when it causes a forward reference. */
2066 #define SDB_ALLOW_FORWARD_REFERENCES
2068 /* Print out extra debug information in the assembler file */
2069 #define PUT_SDB_SCL(a) \
2071 register int s = (a); \
2072 register char *scl; \
2075 case C_EFCN: scl = "end of function"; break; \
2076 case C_NULL: scl = "NULL storage class"; break; \
2077 case C_AUTO: scl = "automatic"; break; \
2078 case C_EXT: scl = "external"; break; \
2079 case C_STAT: scl = "static"; break; \
2080 case C_REG: scl = "register"; break; \
2081 case C_EXTDEF: scl = "external definition"; break; \
2082 case C_LABEL: scl = "label"; break; \
2083 case C_ULABEL: scl = "undefined label"; break; \
2084 case C_MOS: scl = "structure member"; break; \
2085 case C_ARG: scl = "argument"; break; \
2086 case C_STRTAG: scl = "structure tag"; break; \
2087 case C_MOU: scl = "union member"; break; \
2088 case C_UNTAG: scl = "union tag"; break; \
2089 case C_TPDEF: scl = "typedef"; break; \
2090 case C_USTATIC: scl = "uninitialized static"; break; \
2091 case C_ENTAG: scl = "enumeration tag"; break; \
2092 case C_MOE: scl = "member of enumeration"; break; \
2093 case C_REGPARM: scl = "register parameter"; break; \
2094 case C_FIELD: scl = "bit field"; break; \
2095 case C_BLOCK: scl = "block start/end"; break; \
2096 case C_FCN: scl = "function start/end"; break; \
2097 case C_EOS: scl = "end of structure"; break; \
2098 case C_FILE: scl = "filename"; break; \
2099 case C_LINE: scl = "line"; break; \
2100 case C_ALIAS: scl = "duplicated tag"; break; \
2101 case C_HIDDEN: scl = "hidden"; break; \
2102 default: scl = "unknown"; break; \
2105 fprintf(asm_out_file, "\tscl\t %d\t\t\t\t; %s\n", s, scl); \
2108 #define PUT_SDB_TYPE(a) \
2110 register int t = (a); \
2111 static char buffer[100]; \
2112 register char *p = buffer, *q; \
2113 register int typ = t; \
2116 for (i = 0; i <= 5; i++) \
2118 switch ((typ >> ((i*N_TSHIFT) + N_BTSHFT)) & 03) \
2121 strcpy (p, "ptr to "); \
2122 p += sizeof("ptr to"); \
2126 strcpy (p, "array of "); \
2127 p += sizeof("array of"); \
2131 strcpy (p, "func ret "); \
2132 p += sizeof("func ret"); \
2137 switch (typ & N_BTMASK) \
2139 case T_NULL: q = "<no type>"; break; \
2140 case T_CHAR: q = "char"; break; \
2141 case T_SHORT: q = "short"; break; \
2142 case T_INT: q = "int"; break; \
2143 case T_LONG: q = "long"; break; \
2144 case T_FLOAT: q = "float"; break; \
2145 case T_DOUBLE: q = "double"; break; \
2146 case T_STRUCT: q = "struct"; break; \
2147 case T_UNION: q = "union"; break; \
2148 case T_ENUM: q = "enum"; break; \
2149 case T_MOE: q = "enum member"; break; \
2150 case T_UCHAR: q = "unsigned char"; break; \
2151 case T_USHORT: q = "unsigned short"; break; \
2152 case T_UINT: q = "unsigned int"; break; \
2153 case T_ULONG: q = "unsigned long"; break; \
2154 default: q = "void"; break; \
2158 fprintf(asm_out_file, "\ttype\t %d\t\t\t\t; %s\n", \
2162 #define PUT_SDB_INT_VAL(a) \
2163 fprintf (asm_out_file, "\tval\t %d\n", (a))
2165 #define PUT_SDB_VAL(a) \
2166 ( fprintf (asm_out_file, "\tval\t "), \
2167 output_addr_const (asm_out_file, (a)), \
2168 fputc ('\n', asm_out_file))
2170 #define PUT_SDB_DEF(a) \
2171 do { fprintf (asm_out_file, "\tsdef\t "); \
2172 ASM_OUTPUT_LABELREF (asm_out_file, a); \
2173 fputc ('\n', asm_out_file); \
2176 #define PUT_SDB_PLAIN_DEF(a) \
2177 fprintf(asm_out_file,"\tsdef\t .%s\n", a)
2179 /* Simply and endef now. */
2180 #define PUT_SDB_ENDEF \
2181 fputs("\tendef\n\n", asm_out_file)
2183 #define PUT_SDB_SIZE(a) \
2184 fprintf (asm_out_file, "\tsize\t %d\n", (a))
2186 /* Max dimensions to store for debug information (limited by COFF). */
2187 #define SDB_MAX_DIM 6
2189 /* New method for dim operations. */
2190 #define PUT_SDB_START_DIM \
2191 fputs("\tdim\t ", asm_out_file)
2193 /* How to end the DIM sequence. */
2194 #define PUT_SDB_LAST_DIM(a) \
2195 fprintf(asm_out_file, "%d\n", a)
2197 #define PUT_SDB_TAG(a) \
2199 fprintf (asm_out_file, "\ttag\t "); \
2200 ASM_OUTPUT_LABELREF (asm_out_file, a); \
2201 fputc ('\n', asm_out_file); \
2204 #define PUT_SDB_BLOCK_OR_FUNCTION(NAME, SCL, LINE) \
2206 fprintf (asm_out_file, "\n\tsdef\t %s\n\tval\t .\n", \
2208 PUT_SDB_SCL( SCL ); \
2209 fprintf (asm_out_file, "\tline\t %d\n\tendef\n\n", \
2213 #define PUT_SDB_BLOCK_START(LINE) \
2214 PUT_SDB_BLOCK_OR_FUNCTION (".bb", C_BLOCK, (LINE))
2216 #define PUT_SDB_BLOCK_END(LINE) \
2217 PUT_SDB_BLOCK_OR_FUNCTION (".eb", C_BLOCK, (LINE))
2219 #define PUT_SDB_FUNCTION_START(LINE) \
2221 fprintf (asm_out_file, "\tln\t 1\n"); \
2222 PUT_SDB_BLOCK_OR_FUNCTION (".bf", C_FCN, (LINE)); \
2225 #define PUT_SDB_FUNCTION_END(LINE) \
2227 PUT_SDB_BLOCK_OR_FUNCTION (".ef", C_FCN, (LINE)); \
2230 #define PUT_SDB_EPILOGUE_END(NAME) \
2233 fprintf (asm_out_file, "\n\tsdef\t "); \
2234 ASM_OUTPUT_LABELREF(asm_out_file, (NAME)); \
2235 fputc('\n', asm_out_file); \
2236 PUT_SDB_SCL( C_EFCN ); \
2237 fprintf (asm_out_file, "\tendef\n\n"); \
2240 #define SDB_GENERATE_FAKE(BUFFER, NUMBER) \
2241 sprintf ((BUFFER), ".%dfake", (NUMBER));
2243 #endif /* SDB_DEBUGGING_INFO */
2245 /* Support const and tdesc sections. Generally, a const section will
2246 be distinct from the text section whenever we do V.4-like things
2247 and so follows DECLARE_ASM_NAME. Note that strings go in text
2248 rather than const. Override svr[34].h. */
2250 #undef USE_CONST_SECTION
2251 #undef EXTRA_SECTIONS
2253 #define USE_CONST_SECTION DECLARE_ASM_NAME
2255 #if defined(CTORS_SECTION_FUNCTION) /* SVR4 */
2257 #define EXTRA_SECTIONS in_const, in_tdesc, in_sdata, in_ctors, in_dtors
2258 #define INIT_SECTION_FUNCTION
2259 #define FINI_SECTION_FUNCTION
2261 #elif defined(FINI_SECTION_FUNCTION) /* SVR3 */
2263 #define EXTRA_SECTIONS in_const, in_tdesc, in_sdata, in_init, in_fini
2264 #define CTORS_SECTION_FUNCTION
2265 #define DTORS_SECTION_FUNCTION
2267 #else /* m88kluna or other not based on svr[34].h. */
2269 #undef INIT_SECTION_ASM_OP
2270 #define EXTRA_SECTIONS in_const, in_tdesc, in_sdata
2271 #define CONST_SECTION_FUNCTION \
2277 #define CTORS_SECTION_FUNCTION
2278 #define DTORS_SECTION_FUNCTION
2279 #define INIT_SECTION_FUNCTION
2280 #define FINI_SECTION_FUNCTION
2282 #endif /* CTORS_SECTION_FUNCTION */
2284 #undef EXTRA_SECTION_FUNCTIONS
2285 #define EXTRA_SECTION_FUNCTIONS \
2286 CONST_SECTION_FUNCTION \
2291 if (in_section != in_tdesc) \
2293 fprintf (asm_out_file, "%s\n", TDESC_SECTION_ASM_OP); \
2294 in_section = in_tdesc; \
2301 if (in_section != in_sdata) \
2303 fprintf (asm_out_file, "%s\n", SDATA_SECTION_ASM_OP); \
2304 in_section = in_sdata; \
2308 CTORS_SECTION_FUNCTION \
2309 DTORS_SECTION_FUNCTION \
2310 INIT_SECTION_FUNCTION \
2311 FINI_SECTION_FUNCTION
2313 #undef READONLY_DATA_SECTION
2315 /* A C statement or statements to switch to the appropriate
2316 section for output of DECL. DECL is either a `VAR_DECL' node
2317 or a constant of some sort. RELOC indicates whether forming
2318 the initial value of DECL requires link-time relocations.
2320 For strings, the section is selected before the segment info is encoded. */
2321 #undef SELECT_SECTION
2322 #define SELECT_SECTION(DECL,RELOC) \
2324 if (TREE_CODE (DECL) == STRING_CST) \
2326 if (! flag_writable_strings) \
2328 else if (m88k_gp_threshold > 0 \
2329 && TREE_STRING_LENGTH (DECL) <= m88k_gp_threshold) \
2334 else if (TREE_CODE (DECL) == VAR_DECL) \
2336 if (SYMBOL_REF_FLAG (XEXP (DECL_RTL (DECL), 0))) \
2338 else if ((flag_pic && RELOC) \
2339 || !TREE_READONLY (DECL) || TREE_SIDE_EFFECTS (DECL)) \
2348 /* Define this macro if references to a symbol must be treated differently
2349 depending on something about the variable or function named by the
2350 symbol (such as what section it is in).
2352 The macro definition, if any, is executed immediately after the rtl for
2353 DECL has been created and stored in `DECL_RTL (DECL)'. The value of the
2354 rtl will be a `mem' whose address is a `symbol_ref'.
2356 For the m88k, determine if the item should go in the global pool. */
2357 #define ENCODE_SECTION_INFO(DECL) \
2359 if (m88k_gp_threshold > 0) \
2360 if (TREE_CODE (DECL) == VAR_DECL) \
2362 if (!TREE_READONLY (DECL) || TREE_SIDE_EFFECTS (DECL)) \
2364 int size = int_size_in_bytes (TREE_TYPE (DECL)); \
2366 if (size > 0 && size <= m88k_gp_threshold) \
2367 SYMBOL_REF_FLAG (XEXP (DECL_RTL (DECL), 0)) = 1; \
2370 else if (TREE_CODE (DECL) == STRING_CST \
2371 && flag_writable_strings \
2372 && TREE_STRING_LENGTH (DECL) <= m88k_gp_threshold) \
2373 SYMBOL_REF_FLAG (XEXP (TREE_CST_RTL (DECL), 0)) = 1; \
2376 /* Print operand X (an rtx) in assembler syntax to file FILE.
2377 CODE is a letter or dot (`z' in `%z0') or 0 if no letter was specified.
2378 For `%' followed by punctuation, CODE is the punctuation and X is null. */
2379 #define PRINT_OPERAND_PUNCT_VALID_P(c) \
2380 ((c) == '#' || (c) == '.' || (c) == '!' || (c) == '*' || (c) == ';')
2382 #define PRINT_OPERAND(FILE, X, CODE) print_operand (FILE, X, CODE)
2384 /* Print a memory address as an operand to reference that memory location. */
2385 #define PRINT_OPERAND_ADDRESS(FILE, ADDR) print_operand_address (FILE, ADDR)
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