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1 /* Definitions of target machine for GNU compiler.
2 Renesas H8/300 (generic)
3 Copyright (C) 1992, 1993, 1994, 1995, 1996, 1996, 1997, 1998, 1999,
4 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
5 Contributed by Steve Chamberlain (sac@cygnus.com),
6 Jim Wilson (wilson@cygnus.com), and Doug Evans (dje@cygnus.com).
7
8 This file is part of GCC.
9
10 GCC 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)
13 any later version.
14
15 GCC 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.
19
20 You should have received a copy of the GNU General Public License
21 along with GCC; see the file COPYING. If not, write to
22 the Free Software Foundation, 59 Temple Place - Suite 330,
23 Boston, MA 02111-1307, USA. */
24
25 #ifndef GCC_H8300_H
26 #define GCC_H8300_H
27
28 /* Which CPU to compile for.
29 We use int for CPU_TYPE to avoid lots of casts. */
30 #if 0 /* defined in insn-attr.h, here for documentation */
31 enum attr_cpu { CPU_H8300, CPU_H8300H };
32 #endif
33 extern int cpu_type;
34
35 /* Various globals defined in h8300.c. */
36
37 extern const char *h8_push_op, *h8_pop_op, *h8_mov_op;
38 extern const char * const *h8_reg_names;
39
40 /* Target CPU builtins. */
41 #define TARGET_CPU_CPP_BUILTINS() \
42 do \
43 { \
44 if (TARGET_H8300H) \
45 { \
46 builtin_define ("__H8300H__"); \
47 builtin_assert ("cpu=h8300h"); \
48 builtin_assert ("machine=h8300h"); \
49 if (TARGET_NORMAL_MODE) \
50 { \
51 builtin_define ("__NORMAL_MODE__"); \
52 } \
53 } \
54 else if (TARGET_H8300S) \
55 { \
56 builtin_define ("__H8300S__"); \
57 builtin_assert ("cpu=h8300s"); \
58 builtin_assert ("machine=h8300s"); \
59 if (TARGET_NORMAL_MODE) \
60 { \
61 builtin_define ("__NORMAL_MODE__"); \
62 } \
63 } \
64 else \
65 { \
66 builtin_define ("__H8300__"); \
67 builtin_assert ("cpu=h8300"); \
68 builtin_assert ("machine=h8300"); \
69 } \
70 } \
71 while (0)
72
73 #define LINK_SPEC "%{mh:%{mn:-m h8300hn}} %{mh:%{!mn:-m h8300h}} %{ms:%{mn:-m h8300sn}} %{ms:%{!mn:-m h8300s}}"
74
75 #define LIB_SPEC "%{mrelax:-relax} %{g:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}"
76
77 #define OPTIMIZATION_OPTIONS(LEVEL, SIZE) \
78 do \
79 { \
80 /* Basic block reordering is only beneficial on targets with cache \
81 and/or variable-cycle branches where (cycle count taken != \
82 cycle count not taken). */ \
83 flag_reorder_blocks = 0; \
84 } \
85 while (0)
86
87 /* Print subsidiary information on the compiler version in use. */
88
89 #define TARGET_VERSION fprintf (stderr, " (Renesas H8/300)");
90
91 /* Run-time compilation parameters selecting different hardware subsets. */
92
93 extern int target_flags;
94
95 /* Masks for the -m switches. */
96 #define MASK_H8300S 0x00000001
97 #define MASK_MAC 0x00000002
98 #define MASK_INT32 0x00000008
99 #define MASK_ADDRESSES 0x00000040
100 #define MASK_QUICKCALL 0x00000080
101 #define MASK_SLOWBYTE 0x00000100
102 #define MASK_NORMAL_MODE 0x00000200
103 #define MASK_RELAX 0x00000400
104 #define MASK_H8300H 0x00001000
105 #define MASK_ALIGN_300 0x00002000
106
107 /* Macros used in the machine description to test the flags. */
108
109 /* Make int's 32 bits. */
110 #define TARGET_INT32 (target_flags & MASK_INT32)
111
112 /* Dump recorded insn lengths into the output file. This helps debug the
113 md file. */
114 #define TARGET_ADDRESSES (target_flags & MASK_ADDRESSES)
115
116 /* Pass the first few arguments in registers. */
117 #define TARGET_QUICKCALL (target_flags & MASK_QUICKCALL)
118
119 /* Pretend byte accesses are slow. */
120 #define TARGET_SLOWBYTE (target_flags & MASK_SLOWBYTE)
121
122 /* Select between the H8/300 and H8/300H CPUs. */
123 #define TARGET_H8300 (! TARGET_H8300H && ! TARGET_H8300S)
124 #define TARGET_H8300H (target_flags & MASK_H8300H)
125 #define TARGET_H8300S (target_flags & MASK_H8300S)
126 #define TARGET_NORMAL_MODE (target_flags & MASK_NORMAL_MODE)
127
128 /* mac register and relevant instructions are available. */
129 #define TARGET_MAC (target_flags & MASK_MAC)
130
131 /* Align all values on the H8/300H the same way as the H8/300. Specifically,
132 32 bit and larger values are aligned on 16 bit boundaries.
133 This is all the hardware requires, but the default is 32 bits for the H8/300H.
134 ??? Now watch someone add hardware floating point requiring 32 bit
135 alignment. */
136 #define TARGET_ALIGN_300 (target_flags & MASK_ALIGN_300)
137
138 /* Macro to define tables used to set the flags.
139 This is a list in braces of pairs in braces,
140 each pair being { "NAME", VALUE }
141 where VALUE is the bits to set or minus the bits to clear.
142 An empty string NAME is used to identify the default VALUE. */
143
144 #define TARGET_SWITCHES \
145 { {"s", MASK_H8300S, N_("Generate H8S code")}, \
146 {"no-s", -MASK_H8300S, N_("Do not generate H8S code")}, \
147 {"s2600", MASK_MAC, N_("Generate H8S/2600 code")}, \
148 {"no-s2600", -MASK_MAC, N_("Do not generate H8S/2600 code")}, \
149 {"int32", MASK_INT32, N_("Make integers 32 bits wide")}, \
150 {"addresses", MASK_ADDRESSES, NULL}, \
151 {"quickcall", MASK_QUICKCALL, \
152 N_("Use registers for argument passing")}, \
153 {"no-quickcall", -MASK_QUICKCALL, \
154 N_("Do not use registers for argument passing")}, \
155 {"slowbyte", MASK_SLOWBYTE, \
156 N_("Consider access to byte sized memory slow")}, \
157 {"relax", MASK_RELAX, N_("Enable linker relaxing")}, \
158 {"h", MASK_H8300H, N_("Generate H8/300H code")}, \
159 {"n", MASK_NORMAL_MODE, N_("Enable the normal mode")}, \
160 {"no-h", -MASK_H8300H, N_("Do not generate H8/300H code")}, \
161 {"align-300", MASK_ALIGN_300, N_("Use H8/300 alignment rules")}, \
162 { "", TARGET_DEFAULT, NULL}}
163
164 #ifdef IN_LIBGCC2
165 #undef TARGET_H8300H
166 #undef TARGET_H8300S
167 #undef TARGET_NORMAL_MODE
168 /* If compiling libgcc2, make these compile time constants based on what
169 flags are we actually compiling with. */
170 #ifdef __H8300H__
171 #define TARGET_H8300H 1
172 #else
173 #define TARGET_H8300H 0
174 #endif
175 #ifdef __H8300S__
176 #define TARGET_H8300S 1
177 #else
178 #define TARGET_H8300S 0
179 #endif
180 #ifdef __NORMAL_MODE__
181 #define TARGET_NORMAL_MODE 1
182 #else
183 #define TARGET_NORMAL_MODE 0
184 #endif
185 #endif /* !IN_LIBGCC2 */
186
187 /* Do things that must be done once at start up. */
188
189 #define OVERRIDE_OPTIONS \
190 do \
191 { \
192 h8300_init_once (); \
193 } \
194 while (0)
195
196 /* Default target_flags if no switches specified. */
197
198 #ifndef TARGET_DEFAULT
199 #define TARGET_DEFAULT (MASK_QUICKCALL)
200 #endif
201
202 /* Show we can debug even without a frame pointer. */
203 /* #define CAN_DEBUG_WITHOUT_FP */
204
205 /* Define this if addresses of constant functions
206 shouldn't be put through pseudo regs where they can be cse'd.
207 Desirable on machines where ordinary constants are expensive
208 but a CALL with constant address is cheap.
209
210 Calls through a register are cheaper than calls to named
211 functions; however, the register pressure this causes makes
212 CSEing of function addresses generally a lose. */
213 #define NO_FUNCTION_CSE
214 \f
215 /* Target machine storage layout */
216
217 /* Define this if most significant bit is lowest numbered
218 in instructions that operate on numbered bit-fields.
219 This is not true on the H8/300. */
220 #define BITS_BIG_ENDIAN 0
221
222 /* Define this if most significant byte of a word is the lowest numbered. */
223 /* That is true on the H8/300. */
224 #define BYTES_BIG_ENDIAN 1
225
226 /* Define this if most significant word of a multiword number is lowest
227 numbered. */
228 #define WORDS_BIG_ENDIAN 1
229
230 #define MAX_BITS_PER_WORD 32
231
232 /* Width of a word, in units (bytes). */
233 #define UNITS_PER_WORD (TARGET_H8300H || TARGET_H8300S ? 4 : 2)
234 #define MIN_UNITS_PER_WORD 2
235
236 #define SHORT_TYPE_SIZE 16
237 #define INT_TYPE_SIZE (TARGET_INT32 ? 32 : 16)
238 #define LONG_TYPE_SIZE 32
239 #define LONG_LONG_TYPE_SIZE 64
240 #define FLOAT_TYPE_SIZE 32
241 #define DOUBLE_TYPE_SIZE 32
242 #define LONG_DOUBLE_TYPE_SIZE DOUBLE_TYPE_SIZE
243
244 #define MAX_FIXED_MODE_SIZE 32
245
246 /* Allocation boundary (in *bits*) for storing arguments in argument list. */
247 #define PARM_BOUNDARY (TARGET_H8300H || TARGET_H8300S ? 32 : 16)
248
249 /* Allocation boundary (in *bits*) for the code of a function. */
250 #define FUNCTION_BOUNDARY 16
251
252 /* Alignment of field after `int : 0' in a structure. */
253 /* One can argue this should be 32 for -mint32, but since 32 bit ints only
254 need 16 bit alignment, this is left as is so that -mint32 doesn't change
255 structure layouts. */
256 #define EMPTY_FIELD_BOUNDARY 16
257
258 /* No data type wants to be aligned rounder than this.
259 32 bit values are aligned as such on the H8/300H and H8S for speed. */
260 #define BIGGEST_ALIGNMENT \
261 (((TARGET_H8300H || TARGET_H8300S) && ! TARGET_ALIGN_300) ? 32 : 16)
262
263 /* The stack goes in 16/32 bit lumps. */
264 #define STACK_BOUNDARY (TARGET_H8300 ? 16 : 32)
265
266 /* Define this if move instructions will actually fail to work
267 when given unaligned data. */
268 /* On the H8/300, longs can be aligned on halfword boundaries, but not
269 byte boundaries. */
270 #define STRICT_ALIGNMENT 1
271 \f
272 /* Standard register usage. */
273
274 /* Number of actual hardware registers.
275 The hardware registers are assigned numbers for the compiler
276 from 0 to just below FIRST_PSEUDO_REGISTER.
277
278 All registers that the compiler knows about must be given numbers,
279 even those that are not normally considered general registers.
280
281 Reg 9 does not correspond to any hardware register, but instead
282 appears in the RTL as an argument pointer prior to reload, and is
283 eliminated during reloading in favor of either the stack or frame
284 pointer. */
285
286 #define FIRST_PSEUDO_REGISTER 12
287
288 /* 1 for registers that have pervasive standard uses
289 and are not available for the register allocator. */
290
291 #define FIXED_REGISTERS \
292 /* r0 r1 r2 r3 r4 r5 r6 r7 mac ap rap fp */ \
293 { 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 1, 1 }
294
295 /* 1 for registers not available across function calls.
296 These must include the FIXED_REGISTERS and also any
297 registers that can be used without being saved.
298 The latter must include the registers where values are returned
299 and the register where structure-value addresses are passed.
300 Aside from that, you can include as many other registers as you
301 like.
302
303 H8 destroys r0,r1,r2,r3. */
304
305 #define CALL_USED_REGISTERS \
306 /* r0 r1 r2 r3 r4 r5 r6 r7 mac ap rap fp */ \
307 { 1, 1, 1, 1, 0, 0, 0, 1, 1, 1, 1, 1 }
308
309 #define REG_ALLOC_ORDER \
310 /* r0 r1 r2 r3 r4 r5 r6 r7 mac ap rap fp */ \
311 { 2, 3, 0, 1, 4, 5, 6, 8, 7, 9, 10, 11 }
312
313 #define CONDITIONAL_REGISTER_USAGE \
314 { \
315 if (!TARGET_MAC) \
316 fixed_regs[MAC_REG] = call_used_regs[MAC_REG] = 1; \
317 }
318
319 #define HARD_REGNO_NREGS(REGNO, MODE) \
320 h8300_hard_regno_nregs ((REGNO), (MODE))
321
322 #define HARD_REGNO_MODE_OK(REGNO, MODE) \
323 h8300_hard_regno_mode_ok ((REGNO), (MODE))
324
325 /* Value is 1 if it is a good idea to tie two pseudo registers
326 when one has mode MODE1 and one has mode MODE2.
327 If HARD_REGNO_MODE_OK could produce different values for MODE1 and MODE2,
328 for any hard reg, then this must be 0 for correct output. */
329 #define MODES_TIEABLE_P(MODE1, MODE2) \
330 ((MODE1) == (MODE2) \
331 || (((MODE1) == QImode || (MODE1) == HImode \
332 || ((TARGET_H8300H || TARGET_H8300S) && (MODE1) == SImode)) \
333 && ((MODE2) == QImode || (MODE2) == HImode \
334 || ((TARGET_H8300H || TARGET_H8300S) && (MODE2) == SImode))))
335
336 /* A C expression that is nonzero if hard register NEW_REG can be
337 considered for use as a rename register for OLD_REG register */
338
339 #define HARD_REGNO_RENAME_OK(OLD_REG, NEW_REG) \
340 h8300_hard_regno_rename_ok (OLD_REG, NEW_REG)
341
342 /* Specify the registers used for certain standard purposes.
343 The values of these macros are register numbers. */
344
345 /* H8/300 pc is not overloaded on a register. */
346
347 /*#define PC_REGNUM 15*/
348
349 /* Register to use for pushing function arguments. */
350 #define STACK_POINTER_REGNUM SP_REG
351
352 /* Base register for access to local variables of the function. */
353 #define HARD_FRAME_POINTER_REGNUM HFP_REG
354
355 /* Base register for access to local variables of the function. */
356 #define FRAME_POINTER_REGNUM FP_REG
357
358 /* Value should be nonzero if functions must have frame pointers.
359 Zero means the frame pointer need not be set up (and parms
360 may be accessed via the stack pointer) in functions that seem suitable.
361 This is computed in `reload', in reload1.c. */
362 #define FRAME_POINTER_REQUIRED 0
363
364 /* Base register for access to arguments of the function. */
365 #define ARG_POINTER_REGNUM AP_REG
366
367 /* Register in which static-chain is passed to a function. */
368 #define STATIC_CHAIN_REGNUM SC_REG
369
370 /* Fake register that holds the address on the stack of the
371 current function's return address. */
372 #define RETURN_ADDRESS_POINTER_REGNUM RAP_REG
373
374 /* A C expression whose value is RTL representing the value of the return
375 address for the frame COUNT steps up from the current frame.
376 FRAMEADDR is already the frame pointer of the COUNT frame, assuming
377 a stack layout with the frame pointer as the first saved register. */
378 #define RETURN_ADDR_RTX(COUNT, FRAME) h8300_return_addr_rtx ((COUNT), (FRAME))
379 \f
380 /* Define the classes of registers for register constraints in the
381 machine description. Also define ranges of constants.
382
383 One of the classes must always be named ALL_REGS and include all hard regs.
384 If there is more than one class, another class must be named NO_REGS
385 and contain no registers.
386
387 The name GENERAL_REGS must be the name of a class (or an alias for
388 another name such as ALL_REGS). This is the class of registers
389 that is allowed by "g" or "r" in a register constraint.
390 Also, registers outside this class are allocated only when
391 instructions express preferences for them.
392
393 The classes must be numbered in nondecreasing order; that is,
394 a larger-numbered class must never be contained completely
395 in a smaller-numbered class.
396
397 For any two classes, it is very desirable that there be another
398 class that represents their union. */
399
400 enum reg_class {
401 NO_REGS, GENERAL_REGS, MAC_REGS, ALL_REGS, LIM_REG_CLASSES
402 };
403
404 #define N_REG_CLASSES ((int) LIM_REG_CLASSES)
405
406 /* Give names of register classes as strings for dump file. */
407
408 #define REG_CLASS_NAMES \
409 { "NO_REGS", "GENERAL_REGS", "MAC_REGS", "ALL_REGS", "LIM_REGS" }
410
411 /* Define which registers fit in which classes.
412 This is an initializer for a vector of HARD_REG_SET
413 of length N_REG_CLASSES. */
414
415 #define REG_CLASS_CONTENTS \
416 { {0}, /* No regs */ \
417 {0xeff}, /* GENERAL_REGS */ \
418 {0x100}, /* MAC_REGS */ \
419 {0xfff}, /* ALL_REGS */ \
420 }
421
422 /* The same information, inverted:
423 Return the class number of the smallest class containing
424 reg number REGNO. This could be a conditional expression
425 or could index an array. */
426
427 #define REGNO_REG_CLASS(REGNO) (REGNO != MAC_REG ? GENERAL_REGS : MAC_REGS)
428
429 /* The class value for index registers, and the one for base regs. */
430
431 #define INDEX_REG_CLASS NO_REGS
432 #define BASE_REG_CLASS GENERAL_REGS
433
434 /* Get reg_class from a letter such as appears in the machine description.
435
436 'a' is the MAC register. */
437
438 #define REG_CLASS_FROM_LETTER(C) ((C) == 'a' ? MAC_REGS : NO_REGS)
439
440 /* The letters I, J, K, L, M, N, O, P in a register constraint string
441 can be used to stand for particular ranges of immediate operands.
442 This macro defines what the ranges are.
443 C is the letter, and VALUE is a constant value.
444 Return 1 if VALUE is in the range specified by C. */
445
446 #define CONST_OK_FOR_I(VALUE) ((VALUE) == 0)
447 #define CONST_OK_FOR_J(VALUE) (((VALUE) & 0xff) == 0)
448 #define CONST_OK_FOR_L(VALUE) \
449 (TARGET_H8300H || TARGET_H8300S \
450 ? (VALUE) == 1 || (VALUE) == 2 || (VALUE) == 4 \
451 : (VALUE) == 1 || (VALUE) == 2)
452 #define CONST_OK_FOR_M(VALUE) \
453 ((VALUE) == 1 || (VALUE) == 2)
454 #define CONST_OK_FOR_N(VALUE) \
455 (TARGET_H8300H || TARGET_H8300S \
456 ? (VALUE) == -1 || (VALUE) == -2 || (VALUE) == -4 \
457 : (VALUE) == -1 || (VALUE) == -2)
458 #define CONST_OK_FOR_O(VALUE) \
459 ((VALUE) == -1 || (VALUE) == -2)
460
461 #define CONST_OK_FOR_LETTER_P(VALUE, C) \
462 ((C) == 'I' ? CONST_OK_FOR_I (VALUE) : \
463 (C) == 'J' ? CONST_OK_FOR_J (VALUE) : \
464 (C) == 'L' ? CONST_OK_FOR_L (VALUE) : \
465 (C) == 'M' ? CONST_OK_FOR_M (VALUE) : \
466 (C) == 'N' ? CONST_OK_FOR_N (VALUE) : \
467 (C) == 'O' ? CONST_OK_FOR_O (VALUE) : \
468 0)
469
470 /* Similar, but for floating constants, and defining letters G and H.
471 Here VALUE is the CONST_DOUBLE rtx itself.
472
473 `G' is a floating-point zero. */
474
475 #define CONST_DOUBLE_OK_FOR_LETTER_P(VALUE, C) \
476 ((C) == 'G' ? (VALUE) == CONST0_RTX (SFmode) \
477 : 0)
478
479 /* Given an rtx X being reloaded into a reg required to be
480 in class CLASS, return the class of reg to actually use.
481 In general this is just CLASS; but on some machines
482 in some cases it is preferable to use a more restrictive class. */
483
484 #define PREFERRED_RELOAD_CLASS(X, CLASS) (CLASS)
485
486 /* Return the maximum number of consecutive registers
487 needed to represent mode MODE in a register of class CLASS. */
488
489 /* On the H8, this is the size of MODE in words. */
490
491 #define CLASS_MAX_NREGS(CLASS, MODE) \
492 ((GET_MODE_SIZE (MODE) + UNITS_PER_WORD - 1) / UNITS_PER_WORD)
493
494 /* Any SI register-to-register move may need to be reloaded,
495 so define REGISTER_MOVE_COST to be > 2 so that reload never
496 shortcuts. */
497
498 #define REGISTER_MOVE_COST(MODE, CLASS1, CLASS2) \
499 (CLASS1 == MAC_REGS || CLASS2 == MAC_REGS ? 6 : 3)
500 \f
501 /* Stack layout; function entry, exit and calling. */
502
503 /* Define this if pushing a word on the stack
504 makes the stack pointer a smaller address. */
505
506 #define STACK_GROWS_DOWNWARD
507
508 /* Define this if the nominal address of the stack frame
509 is at the high-address end of the local variables;
510 that is, each additional local variable allocated
511 goes at a more negative offset in the frame. */
512
513 #define FRAME_GROWS_DOWNWARD
514
515 /* Offset within stack frame to start allocating local variables at.
516 If FRAME_GROWS_DOWNWARD, this is the offset to the END of the
517 first local allocated. Otherwise, it is the offset to the BEGINNING
518 of the first local allocated. */
519
520 #define STARTING_FRAME_OFFSET 0
521
522 /* If we generate an insn to push BYTES bytes,
523 this says how many the stack pointer really advances by.
524
525 On the H8/300, @-sp really pushes a byte if you ask it to - but that's
526 dangerous, so we claim that it always pushes a word, then we catch
527 the mov.b rx,@-sp and turn it into a mov.w rx,@-sp on output.
528
529 On the H8/300H, we simplify TARGET_QUICKCALL by setting this to 4
530 and doing a similar thing. */
531
532 #define PUSH_ROUNDING(BYTES) \
533 (((BYTES) + PARM_BOUNDARY / 8 - 1) & -PARM_BOUNDARY / 8)
534
535 /* Offset of first parameter from the argument pointer register value. */
536 /* Is equal to the size of the saved fp + pc, even if an fp isn't
537 saved since the value is used before we know. */
538
539 #define FIRST_PARM_OFFSET(FNDECL) 0
540
541 /* Value is the number of bytes of arguments automatically
542 popped when returning from a subroutine call.
543 FUNDECL is the declaration node of the function (as a tree),
544 FUNTYPE is the data type of the function (as a tree),
545 or for a library call it is an identifier node for the subroutine name.
546 SIZE is the number of bytes of arguments passed on the stack.
547
548 On the H8 the return does not pop anything. */
549
550 #define RETURN_POPS_ARGS(FUNDECL, FUNTYPE, SIZE) 0
551
552 /* Definitions for register eliminations.
553
554 This is an array of structures. Each structure initializes one pair
555 of eliminable registers. The "from" register number is given first,
556 followed by "to". Eliminations of the same "from" register are listed
557 in order of preference.
558
559 We have three registers that can be eliminated on the h8300.
560 First, the frame pointer register can often be eliminated in favor
561 of the stack pointer register. Secondly, the argument pointer
562 register and the return address pointer register are always
563 eliminated; they are replaced with either the stack or frame
564 pointer. */
565
566 #define ELIMINABLE_REGS \
567 {{ ARG_POINTER_REGNUM, STACK_POINTER_REGNUM}, \
568 { ARG_POINTER_REGNUM, HARD_FRAME_POINTER_REGNUM}, \
569 { RETURN_ADDRESS_POINTER_REGNUM, STACK_POINTER_REGNUM}, \
570 { RETURN_ADDRESS_POINTER_REGNUM, HARD_FRAME_POINTER_REGNUM}, \
571 { FRAME_POINTER_REGNUM, STACK_POINTER_REGNUM}, \
572 { FRAME_POINTER_REGNUM, HARD_FRAME_POINTER_REGNUM}}
573
574 /* Given FROM and TO register numbers, say whether this elimination is allowed.
575 Frame pointer elimination is automatically handled.
576
577 For the h8300, if frame pointer elimination is being done, we would like to
578 convert ap and rp into sp, not fp.
579
580 All other eliminations are valid. */
581
582 #define CAN_ELIMINATE(FROM, TO) \
583 ((TO) == STACK_POINTER_REGNUM ? ! frame_pointer_needed : 1)
584
585 /* Define the offset between two registers, one to be eliminated, and the other
586 its replacement, at the start of a routine. */
587
588 #define INITIAL_ELIMINATION_OFFSET(FROM, TO, OFFSET) \
589 ((OFFSET) = h8300_initial_elimination_offset ((FROM), (TO)))
590
591 /* Define how to find the value returned by a function.
592 VALTYPE is the data type of the value (as a tree).
593 If the precise function being called is known, FUNC is its FUNCTION_DECL;
594 otherwise, FUNC is 0.
595
596 On the H8 the return value is in R0/R1. */
597
598 #define FUNCTION_VALUE(VALTYPE, FUNC) \
599 gen_rtx_REG (TYPE_MODE (VALTYPE), R0_REG)
600
601 /* Define how to find the value returned by a library function
602 assuming the value has mode MODE. */
603
604 /* On the H8 the return value is in R0/R1. */
605
606 #define LIBCALL_VALUE(MODE) \
607 gen_rtx_REG (MODE, R0_REG)
608
609 /* 1 if N is a possible register number for a function value.
610 On the H8, R0 is the only register thus used. */
611
612 #define FUNCTION_VALUE_REGNO_P(N) ((N) == R0_REG)
613
614 /* Define this if PCC uses the nonreentrant convention for returning
615 structure and union values. */
616
617 /*#define PCC_STATIC_STRUCT_RETURN*/
618
619 /* 1 if N is a possible register number for function argument passing.
620 On the H8, no registers are used in this way. */
621
622 #define FUNCTION_ARG_REGNO_P(N) (TARGET_QUICKCALL ? N < 3 : 0)
623
624 /* When defined, the compiler allows registers explicitly used in the
625 rtl to be used as spill registers but prevents the compiler from
626 extending the lifetime of these registers. */
627
628 #define SMALL_REGISTER_CLASSES 1
629 \f
630 /* Define a data type for recording info about an argument list
631 during the scan of that argument list. This data type should
632 hold all necessary information about the function itself
633 and about the args processed so far, enough to enable macros
634 such as FUNCTION_ARG to determine where the next arg should go.
635
636 On the H8/300, this is a two item struct, the first is the number
637 of bytes scanned so far and the second is the rtx of the called
638 library function if any. */
639
640 #define CUMULATIVE_ARGS struct cum_arg
641 struct cum_arg
642 {
643 int nbytes;
644 struct rtx_def *libcall;
645 };
646
647 /* Initialize a variable CUM of type CUMULATIVE_ARGS
648 for a call to a function whose data type is FNTYPE.
649 For a library call, FNTYPE is 0.
650
651 On the H8/300, the offset starts at 0. */
652
653 #define INIT_CUMULATIVE_ARGS(CUM, FNTYPE, LIBNAME, INDIRECT, N_NAMED_ARGS) \
654 ((CUM).nbytes = 0, (CUM).libcall = LIBNAME)
655
656 /* Update the data in CUM to advance over an argument
657 of mode MODE and data type TYPE.
658 (TYPE is null for libcalls where that information may not be available.) */
659
660 #define FUNCTION_ARG_ADVANCE(CUM, MODE, TYPE, NAMED) \
661 ((CUM).nbytes += ((MODE) != BLKmode \
662 ? (GET_MODE_SIZE (MODE) + UNITS_PER_WORD - 1) & -UNITS_PER_WORD \
663 : (int_size_in_bytes (TYPE) + UNITS_PER_WORD - 1) & -UNITS_PER_WORD))
664
665 /* Define where to put the arguments to a function.
666 Value is zero to push the argument on the stack,
667 or a hard register in which to store the argument.
668
669 MODE is the argument's machine mode.
670 TYPE is the data type of the argument (as a tree).
671 This is null for libcalls where that information may
672 not be available.
673 CUM is a variable of type CUMULATIVE_ARGS which gives info about
674 the preceding args and about the function being called.
675 NAMED is nonzero if this argument is a named parameter
676 (otherwise it is an extra parameter matching an ellipsis). */
677
678 /* On the H8/300 all normal args are pushed, unless -mquickcall in which
679 case the first 3 arguments are passed in registers.
680 See function `function_arg'. */
681
682 #define FUNCTION_ARG(CUM, MODE, TYPE, NAMED) \
683 function_arg (&CUM, MODE, TYPE, NAMED)
684
685 /* Output assembler code to FILE to increment profiler label # LABELNO
686 for profiling a function entry. */
687
688 #define FUNCTION_PROFILER(FILE, LABELNO) \
689 fprintf (FILE, "\t%s\t#LP%d,%s\n\tjsr @mcount\n", \
690 h8_mov_op, (LABELNO), h8_reg_names[0]);
691
692 /* EXIT_IGNORE_STACK should be nonzero if, when returning from a function,
693 the stack pointer does not matter. The value is tested only in
694 functions that have frame pointers.
695 No definition is equivalent to always zero. */
696
697 #define EXIT_IGNORE_STACK 0
698
699 /* We emit the entire trampoline with INITIALIZE_TRAMPOLINE.
700 Depending on the pointer size, we use a different trampoline.
701
702 Pmode == HImode
703 vvvv context
704 1 0000 7903xxxx mov.w #0x1234,r3
705 2 0004 5A00xxxx jmp @0x1234
706 ^^^^ function
707
708 Pmode == SImode
709 vvvvvvvv context
710 2 0000 7A03xxxxxxxx mov.l #0x12345678,er3
711 3 0006 5Axxxxxx jmp @0x123456
712 ^^^^^^ function
713 */
714
715 /* Length in units of the trampoline for entering a nested function. */
716
717 #define TRAMPOLINE_SIZE ((Pmode == HImode) ? 8 : 12)
718
719 /* Emit RTL insns to build a trampoline.
720 FNADDR is an RTX for the address of the function's pure code.
721 CXT is an RTX for the static chain value for the function. */
722
723 #define INITIALIZE_TRAMPOLINE(TRAMP, FNADDR, CXT) \
724 do \
725 { \
726 if (Pmode == HImode) \
727 { \
728 emit_move_insn (gen_rtx_MEM (HImode, (TRAMP)), GEN_INT (0x7903)); \
729 emit_move_insn (gen_rtx_MEM (Pmode, plus_constant ((TRAMP), 2)), \
730 (CXT)); \
731 emit_move_insn (gen_rtx_MEM (Pmode, plus_constant ((TRAMP), 4)), \
732 GEN_INT (0x5a00)); \
733 emit_move_insn (gen_rtx_MEM (Pmode, plus_constant ((TRAMP), 6)), \
734 (FNADDR)); \
735 } \
736 else \
737 { \
738 rtx tem = gen_reg_rtx (Pmode); \
739 \
740 emit_move_insn (gen_rtx_MEM (HImode, (TRAMP)), GEN_INT (0x7a03)); \
741 emit_move_insn (gen_rtx_MEM (Pmode, plus_constant ((TRAMP), 2)), \
742 (CXT)); \
743 emit_move_insn (tem, (FNADDR)); \
744 emit_insn (gen_andsi3 (tem, tem, GEN_INT (0x00ffffff))); \
745 emit_insn (gen_iorsi3 (tem, tem, GEN_INT (0x5a000000))); \
746 emit_move_insn (gen_rtx_MEM (Pmode, plus_constant ((TRAMP), 6)), \
747 tem); \
748 } \
749 } \
750 while (0)
751 \f
752 /* Addressing modes, and classification of registers for them. */
753
754 #define HAVE_POST_INCREMENT 1
755 #define HAVE_PRE_DECREMENT 1
756
757 /* Macros to check register numbers against specific register classes. */
758
759 /* These assume that REGNO is a hard or pseudo reg number.
760 They give nonzero only if REGNO is a hard reg of the suitable class
761 or a pseudo reg currently allocated to a suitable hard reg.
762 Since they use reg_renumber, they are safe only once reg_renumber
763 has been allocated, which happens in local-alloc.c. */
764
765 #define REGNO_OK_FOR_INDEX_P(regno) 0
766
767 #define REGNO_OK_FOR_BASE_P(regno) \
768 (((regno) < FIRST_PSEUDO_REGISTER && regno != MAC_REG) \
769 || reg_renumber[regno] >= 0)
770 \f
771 /* Maximum number of registers that can appear in a valid memory address. */
772
773 #define MAX_REGS_PER_ADDRESS 1
774
775 /* 1 if X is an rtx for a constant that is a valid address. */
776
777 #define CONSTANT_ADDRESS_P(X) \
778 (GET_CODE (X) == LABEL_REF || GET_CODE (X) == SYMBOL_REF \
779 || (GET_CODE (X) == CONST_INT \
780 /* We handle signed and unsigned offsets here. */ \
781 && INTVAL (X) > (TARGET_H8300 ? -0x10000 : -0x1000000) \
782 && INTVAL (X) < (TARGET_H8300 ? 0x10000 : 0x1000000)) \
783 || (GET_CODE (X) == HIGH || GET_CODE (X) == CONST))
784
785 /* Nonzero if the constant value X is a legitimate general operand.
786 It is given that X satisfies CONSTANT_P or is a CONST_DOUBLE. */
787
788 #define LEGITIMATE_CONSTANT_P(X) (h8300_legitimate_constant_p (X))
789
790 /* The macros REG_OK_FOR..._P assume that the arg is a REG rtx
791 and check its validity for a certain class.
792 We have two alternate definitions for each of them.
793 The usual definition accepts all pseudo regs; the other rejects
794 them unless they have been allocated suitable hard regs.
795 The symbol REG_OK_STRICT causes the latter definition to be used.
796
797 Most source files want to accept pseudo regs in the hope that
798 they will get allocated to the class that the insn wants them to be in.
799 Source files for reload pass need to be strict.
800 After reload, it makes no difference, since pseudo regs have
801 been eliminated by then. */
802
803 /* Non-strict versions. */
804 #define REG_OK_FOR_INDEX_NONSTRICT_P(X) 0
805 /* Don't use REGNO_OK_FOR_BASE_P here because it uses reg_renumber. */
806 #define REG_OK_FOR_BASE_NONSTRICT_P(X) \
807 (REGNO (X) >= FIRST_PSEUDO_REGISTER || REGNO (X) != MAC_REG)
808
809 /* Strict versions. */
810 #define REG_OK_FOR_INDEX_STRICT_P(X) REGNO_OK_FOR_INDEX_P (REGNO (X))
811 #define REG_OK_FOR_BASE_STRICT_P(X) REGNO_OK_FOR_BASE_P (REGNO (X))
812
813 #ifndef REG_OK_STRICT
814
815 #define REG_OK_FOR_INDEX_P(X) REG_OK_FOR_INDEX_NONSTRICT_P (X)
816 #define REG_OK_FOR_BASE_P(X) REG_OK_FOR_BASE_NONSTRICT_P (X)
817
818 #else
819
820 #define REG_OK_FOR_INDEX_P(X) REG_OK_FOR_INDEX_STRICT_P (X)
821 #define REG_OK_FOR_BASE_P(X) REG_OK_FOR_BASE_STRICT_P (X)
822
823 #endif
824
825 /* Extra constraints. */
826
827 #define OK_FOR_R(OP) \
828 (GET_CODE (OP) == CONST_INT \
829 ? !h8300_shift_needs_scratch_p (INTVAL (OP), QImode) \
830 : 0)
831
832 #define OK_FOR_S(OP) \
833 (GET_CODE (OP) == CONST_INT \
834 ? !h8300_shift_needs_scratch_p (INTVAL (OP), HImode) \
835 : 0)
836
837 #define OK_FOR_T(OP) \
838 (GET_CODE (OP) == CONST_INT \
839 ? !h8300_shift_needs_scratch_p (INTVAL (OP), SImode) \
840 : 0)
841
842 /* 'U' if valid for a bset destination;
843 i.e. a register, register indirect, or the eightbit memory region
844 (a SYMBOL_REF with an SYMBOL_REF_FLAG set).
845
846 On the H8S 'U' can also be a 16bit or 32bit absolute. */
847 #define OK_FOR_U(OP) \
848 ((GET_CODE (OP) == REG && REG_OK_FOR_BASE_P (OP)) \
849 || (GET_CODE (OP) == MEM && GET_CODE (XEXP (OP, 0)) == REG \
850 && REG_OK_FOR_BASE_P (XEXP (OP, 0))) \
851 || (GET_CODE (OP) == MEM && GET_CODE (XEXP (OP, 0)) == SYMBOL_REF \
852 && TARGET_H8300S) \
853 || (GET_CODE (OP) == MEM && GET_CODE (XEXP (OP, 0)) == CONST \
854 && GET_CODE (XEXP (XEXP (OP, 0), 0)) == PLUS \
855 && GET_CODE (XEXP (XEXP (XEXP (OP, 0), 0), 0)) == SYMBOL_REF \
856 && GET_CODE (XEXP (XEXP (XEXP (OP, 0), 0), 1)) == CONST_INT \
857 && (TARGET_H8300S \
858 || SYMBOL_REF_FLAG (XEXP (XEXP (XEXP (OP, 0), 0), 0)))) \
859 || (GET_CODE (OP) == MEM \
860 && h8300_eightbit_constant_address_p (XEXP (OP, 0))) \
861 || (GET_CODE (OP) == MEM && TARGET_H8300S \
862 && GET_CODE (XEXP (OP, 0)) == CONST_INT))
863
864 #define EXTRA_CONSTRAINT(OP, C) \
865 ((C) == 'R' ? OK_FOR_R (OP) : \
866 (C) == 'S' ? OK_FOR_S (OP) : \
867 (C) == 'T' ? OK_FOR_T (OP) : \
868 (C) == 'U' ? OK_FOR_U (OP) : \
869 0)
870 \f
871 #ifndef REG_OK_STRICT
872 #define GO_IF_LEGITIMATE_ADDRESS(MODE, X, ADDR) \
873 do \
874 { \
875 if (h8300_legitimate_address_p ((X), 0)) \
876 goto ADDR; \
877 } \
878 while (0)
879 #else
880 #define GO_IF_LEGITIMATE_ADDRESS(MODE, X, ADDR) \
881 do \
882 { \
883 if (h8300_legitimate_address_p ((X), 1)) \
884 goto ADDR; \
885 } \
886 while (0)
887 #endif
888 \f
889 /* Go to LABEL if ADDR (a legitimate address expression)
890 has an effect that depends on the machine mode it is used for.
891
892 On the H8/300, the predecrement and postincrement address depend thus
893 (the amount of decrement or increment being the length of the operand). */
894
895 #define GO_IF_MODE_DEPENDENT_ADDRESS(ADDR, LABEL) \
896 if (GET_CODE (ADDR) == POST_INC || GET_CODE (ADDR) == PRE_DEC) goto LABEL;
897 \f
898 /* Specify the machine mode that this machine uses
899 for the index in the tablejump instruction. */
900 #define CASE_VECTOR_MODE Pmode
901
902 /* Define this as 1 if `char' should by default be signed; else as 0.
903
904 On the H8/300, sign extension is expensive, so we'll say that chars
905 are unsigned. */
906 #define DEFAULT_SIGNED_CHAR 0
907
908 /* This flag, if defined, says the same insns that convert to a signed fixnum
909 also convert validly to an unsigned one. */
910 #define FIXUNS_TRUNC_LIKE_FIX_TRUNC
911
912 /* Max number of bytes we can move from memory to memory
913 in one reasonably fast instruction. */
914 #define MOVE_MAX (TARGET_H8300H || TARGET_H8300S ? 4 : 2)
915 #define MAX_MOVE_MAX 4
916
917 /* Nonzero if access to memory by bytes is slow and undesirable. */
918 #define SLOW_BYTE_ACCESS TARGET_SLOWBYTE
919
920 /* Define if shifts truncate the shift count
921 which implies one can omit a sign-extension or zero-extension
922 of a shift count. */
923 /* #define SHIFT_COUNT_TRUNCATED */
924
925 /* Value is 1 if truncating an integer of INPREC bits to OUTPREC bits
926 is done just by pretending it is already truncated. */
927 #define TRULY_NOOP_TRUNCATION(OUTPREC, INPREC) 1
928
929 /* Specify the machine mode that pointers have.
930 After generation of rtl, the compiler makes no further distinction
931 between pointers and any other objects of this machine mode. */
932 #define Pmode \
933 ((TARGET_H8300H || TARGET_H8300S) && !TARGET_NORMAL_MODE ? SImode : HImode)
934
935 /* ANSI C types.
936 We use longs for the H8/300H and the H8S because ints can be 16 or 32.
937 GCC requires SIZE_TYPE to be the same size as pointers. */
938 #define SIZE_TYPE \
939 (TARGET_H8300 || TARGET_NORMAL_MODE ? "unsigned int" : "long unsigned int")
940 #define PTRDIFF_TYPE \
941 (TARGET_H8300 || TARGET_NORMAL_MODE ? "int" : "long int")
942
943 #define POINTER_SIZE \
944 ((TARGET_H8300H || TARGET_H8300S) && !TARGET_NORMAL_MODE ? 32 : 16)
945
946 #define WCHAR_TYPE "short unsigned int"
947 #define WCHAR_TYPE_SIZE 16
948
949 /* A function address in a call instruction
950 is a byte address (for indexing purposes)
951 so give the MEM rtx a byte's mode. */
952 #define FUNCTION_MODE QImode
953
954 #define BRANCH_COST 0
955
956 /* Tell final.c how to eliminate redundant test instructions. */
957
958 /* Here we define machine-dependent flags and fields in cc_status
959 (see `conditions.h'). No extra ones are needed for the h8300. */
960
961 /* Store in cc_status the expressions
962 that the condition codes will describe
963 after execution of an instruction whose pattern is EXP.
964 Do not alter them if the instruction would not alter the cc's. */
965
966 #define NOTICE_UPDATE_CC(EXP, INSN) notice_update_cc (EXP, INSN)
967
968 /* The add insns don't set overflow in a usable way. */
969 #define CC_OVERFLOW_UNUSABLE 01000
970 /* The mov,and,or,xor insns don't set carry. That's OK though as the
971 Z bit is all we need when doing unsigned comparisons on the result of
972 these insns (since they're always with 0). However, conditions.h has
973 CC_NO_OVERFLOW defined for this purpose. Rename it to something more
974 understandable. */
975 #define CC_NO_CARRY CC_NO_OVERFLOW
976 \f
977 /* Control the assembler format that we output. */
978
979 /* Output to assembler file text saying following lines
980 may contain character constants, extra white space, comments, etc. */
981
982 #define ASM_APP_ON "; #APP\n"
983
984 /* Output to assembler file text saying following lines
985 no longer contain unusual constructs. */
986
987 #define ASM_APP_OFF "; #NO_APP\n"
988
989 #define FILE_ASM_OP "\t.file\n"
990
991 /* The assembler op to get a word, 2 bytes for the H8/300, 4 for H8/300H. */
992 #define ASM_WORD_OP \
993 (TARGET_H8300 || TARGET_NORMAL_MODE ? "\t.word\t" : "\t.long\t")
994
995 #define TEXT_SECTION_ASM_OP "\t.section .text"
996 #define DATA_SECTION_ASM_OP "\t.section .data"
997 #define BSS_SECTION_ASM_OP "\t.section .bss"
998
999 #undef DO_GLOBAL_CTORS_BODY
1000 #define DO_GLOBAL_CTORS_BODY \
1001 { \
1002 extern func_ptr __ctors[]; \
1003 extern func_ptr __ctors_end[]; \
1004 func_ptr *p; \
1005 for (p = __ctors_end; p > __ctors; ) \
1006 { \
1007 (*--p)(); \
1008 } \
1009 }
1010
1011 #undef DO_GLOBAL_DTORS_BODY
1012 #define DO_GLOBAL_DTORS_BODY \
1013 { \
1014 extern func_ptr __dtors[]; \
1015 extern func_ptr __dtors_end[]; \
1016 func_ptr *p; \
1017 for (p = __dtors; p < __dtors_end; p++) \
1018 { \
1019 (*p)(); \
1020 } \
1021 }
1022
1023 /* How to refer to registers in assembler output.
1024 This sequence is indexed by compiler's hard-register-number (see above). */
1025
1026 #define REGISTER_NAMES \
1027 { "r0", "r1", "r2", "r3", "r4", "r5", "r6", "sp", "mac", "ap", "rap", "fp" }
1028
1029 #define ADDITIONAL_REGISTER_NAMES \
1030 { {"er0", 0}, {"er1", 1}, {"er2", 2}, {"er3", 3}, {"er4", 4}, \
1031 {"er5", 5}, {"er6", 6}, {"er7", 7}, {"r7", 7} }
1032
1033 #define ASM_OUTPUT_EXTERNAL(FILE, DECL, NAME)
1034
1035 /* Globalizing directive for a label. */
1036 #define GLOBAL_ASM_OP "\t.global "
1037
1038 #define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL) \
1039 ASM_OUTPUT_LABEL (FILE, NAME)
1040
1041 /* The prefix to add to user-visible assembler symbols. */
1042
1043 #define USER_LABEL_PREFIX "_"
1044
1045 /* This is how to store into the string LABEL
1046 the symbol_ref name of an internal numbered label where
1047 PREFIX is the class of label and NUM is the number within the class.
1048 This is suitable for output with `assemble_name'.
1049
1050 N.B.: The h8300.md branch_true and branch_false patterns also know
1051 how to generate internal labels. */
1052 #define ASM_GENERATE_INTERNAL_LABEL(LABEL, PREFIX, NUM) \
1053 sprintf (LABEL, "*.%s%lu", PREFIX, (unsigned long)(NUM))
1054
1055 /* This is how to output an insn to push a register on the stack.
1056 It need not be very fast code. */
1057
1058 #define ASM_OUTPUT_REG_PUSH(FILE, REGNO) \
1059 fprintf (FILE, "\t%s\t%s\n", h8_push_op, h8_reg_names[REGNO])
1060
1061 /* This is how to output an insn to pop a register from the stack.
1062 It need not be very fast code. */
1063
1064 #define ASM_OUTPUT_REG_POP(FILE, REGNO) \
1065 fprintf (FILE, "\t%s\t%s\n", h8_pop_op, h8_reg_names[REGNO])
1066
1067 /* This is how to output an element of a case-vector that is absolute. */
1068
1069 #define ASM_OUTPUT_ADDR_VEC_ELT(FILE, VALUE) \
1070 fprintf (FILE, "%s.L%d\n", ASM_WORD_OP, VALUE)
1071
1072 /* This is how to output an element of a case-vector that is relative. */
1073
1074 #define ASM_OUTPUT_ADDR_DIFF_ELT(FILE, BODY, VALUE, REL) \
1075 fprintf (FILE, "%s.L%d-.L%d\n", ASM_WORD_OP, VALUE, REL)
1076
1077 /* This is how to output an assembler line
1078 that says to advance the location counter
1079 to a multiple of 2**LOG bytes. */
1080
1081 #define ASM_OUTPUT_ALIGN(FILE, LOG) \
1082 if ((LOG) != 0) \
1083 fprintf (FILE, "\t.align %d\n", (LOG))
1084
1085 #define ASM_OUTPUT_SKIP(FILE, SIZE) \
1086 fprintf (FILE, "\t.space %d\n", (int)(SIZE))
1087
1088 /* This says how to output an assembler line
1089 to define a global common symbol. */
1090
1091 #define ASM_OUTPUT_COMMON(FILE, NAME, SIZE, ROUNDED) \
1092 ( fputs ("\t.comm ", (FILE)), \
1093 assemble_name ((FILE), (NAME)), \
1094 fprintf ((FILE), ",%lu\n", (unsigned long)(SIZE)))
1095
1096 /* This says how to output the assembler to define a global
1097 uninitialized but not common symbol.
1098 Try to use asm_output_bss to implement this macro. */
1099
1100 #define ASM_OUTPUT_BSS(FILE, DECL, NAME, SIZE, ROUNDED) \
1101 asm_output_bss ((FILE), (DECL), (NAME), (SIZE), (ROUNDED))
1102
1103 #define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \
1104 asm_output_aligned_bss (FILE, DECL, NAME, SIZE, ALIGN)
1105
1106 /* This says how to output an assembler line
1107 to define a local common symbol. */
1108
1109 #define ASM_OUTPUT_LOCAL(FILE, NAME, SIZE, ROUNDED) \
1110 ( fputs ("\t.lcomm ", (FILE)), \
1111 assemble_name ((FILE), (NAME)), \
1112 fprintf ((FILE), ",%d\n", (int)(SIZE)))
1113
1114 #define ASM_PN_FORMAT "%s___%lu"
1115
1116 /* Print an instruction operand X on file FILE.
1117 Look in h8300.c for details. */
1118
1119 #define PRINT_OPERAND_PUNCT_VALID_P(CODE) \
1120 ((CODE) == '#')
1121
1122 #define PRINT_OPERAND(FILE, X, CODE) print_operand (FILE, X, CODE)
1123
1124 /* Print a memory operand whose address is X, on file FILE.
1125 This uses a function in h8300.c. */
1126
1127 #define PRINT_OPERAND_ADDRESS(FILE, ADDR) print_operand_address (FILE, ADDR)
1128
1129 /* H8300 specific pragmas. */
1130 #define REGISTER_TARGET_PRAGMAS() \
1131 do \
1132 { \
1133 c_register_pragma (0, "saveall", h8300_pr_saveall); \
1134 c_register_pragma (0, "interrupt", h8300_pr_interrupt); \
1135 } \
1136 while (0)
1137
1138 #define FINAL_PRESCAN_INSN(insn, operand, nop) \
1139 final_prescan_insn (insn, operand, nop)
1140
1141 #define MOVE_RATIO 3
1142
1143 /* Define the codes that are matched by predicates in h8300.c. */
1144
1145 #define PREDICATE_CODES \
1146 {"general_operand_src", {CONST_INT, CONST_DOUBLE, CONST, SYMBOL_REF, \
1147 LABEL_REF, SUBREG, REG, MEM}}, \
1148 {"general_operand_dst", {CONST_INT, CONST_DOUBLE, CONST, SYMBOL_REF, \
1149 LABEL_REF, SUBREG, REG, MEM}}, \
1150 {"single_one_operand", {CONST_INT}}, \
1151 {"single_zero_operand", {CONST_INT}}, \
1152 {"call_insn_operand", {MEM}}, \
1153 {"small_call_insn_operand", {MEM}}, \
1154 {"jump_address_operand", {REG, MEM}}, \
1155 {"two_insn_adds_subs_operand", {CONST_INT}}, \
1156 {"bit_operand", {REG, SUBREG, MEM}}, \
1157 {"bit_memory_operand", {MEM}}, \
1158 {"stack_pointer_operand", {REG}}, \
1159 {"const_int_gt_2_operand", {CONST_INT}}, \
1160 {"const_int_ge_8_operand", {CONST_INT}}, \
1161 {"const_int_qi_operand", {CONST_INT}}, \
1162 {"const_int_hi_operand", {CONST_INT}}, \
1163 {"incdec_operand", {CONST_INT}}, \
1164 {"bit_operator", {XOR, AND, IOR}}, \
1165 {"nshift_operator", {ASHIFTRT, LSHIFTRT, ASHIFT}}, \
1166 {"eqne_operator", {EQ, NE}}, \
1167 {"gtle_operator", {GT, LE, GTU, LEU}}, \
1168 {"gtuleu_operator", {GTU, LEU}}, \
1169 {"iorxor_operator", {IOR, XOR}},
1170
1171 #endif /* ! GCC_H8300_H */
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