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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [gcc/] [config/] [cr16/] [cr16.h] - Blame information for rev 731

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1 709 jeremybenn
/* Definitions of target machine for GNU compiler, for CR16.
2
   Copyright (C) 2012 Free Software Foundation, Inc.
3
   Contributed by KPIT Cummins Infosystems Limited.
4
 
5
   This file is part of GCC.
6
 
7
   GCC is free software; you can redistribute it and/or modify it
8
   under the terms of the GNU General Public License as published
9
   by the Free Software Foundation; either version 3, or (at your
10
   option) any later version.
11
 
12
   GCC is distributed in the hope that it will be useful, but WITHOUT
13
   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
14
   or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
15
   License for more details.
16
 
17
   You should have received a copy of the GNU General Public License
18
   along with GCC; see the file COPYING3.  If not see
19
   <http://www.gnu.org/licenses/>.  */
20
 
21
#ifndef GCC_CR16_H
22
#define GCC_CR16_H
23
 
24
#define OBJECT_FORMAT_ELF
25
 
26
/* Controlling the driver.  */
27
 
28
/* The GNU C++ standard library requires that these macros be defined.  */
29
#undef CPLUSPLUS_CPP_SPEC
30
#define CPLUSPLUS_CPP_SPEC "-D_GNU_SOURCE %(cpp)"
31
 
32
#undef  STARTFILE_SPEC
33
#define STARTFILE_SPEC "crt1.o%s crti.o%s crtbegin.o%s crtlibid.o%s"
34
 
35
#undef  ENDFILE_SPEC
36
#define ENDFILE_SPEC "crtend.o%s crtn.o%s"
37
 
38
#undef  MATH_LIBRARY
39
#define MATH_LIBRARY ""
40
 
41
#undef  LIB_SPEC
42
#define LIB_SPEC "-( -lc %{msim*:-lsim}%{!msim*:-lnosys} -) \
43
%{msim*:%{!T*:-Tsim.ld}} \
44
%{!T*:%{!msim*: %{-Telf32cr16.x}}}"
45
 
46
/* Run-time target specification.  */
47
#ifndef TARGET_CPU_CPP_BUILTINS
48
#define TARGET_CPU_CPP_BUILTINS()          \
49
do                                         \
50
  {                                        \
51
    builtin_define ("__CR__");             \
52
    builtin_define ("__CR16__");           \
53
    builtin_define ("__CR16C__");          \
54
    if (TARGET_CR16CP)                     \
55
      builtin_define ("__CR16CP__");       \
56
    else                                   \
57
      builtin_define ("__CR16CSTD__");     \
58
    if (CR16_TARGET_DATA_NEAR)             \
59
      builtin_define ("__DATA_NEAR__");    \
60
    if (CR16_TARGET_DATA_MEDIUM)           \
61
      builtin_define ("__DATA_MEDIUM__");  \
62
    if (CR16_TARGET_DATA_FAR)              \
63
      builtin_define ("__DATA_FAR__");     \
64
    if (TARGET_INT32)                      \
65
      builtin_define ("__INT32__");        \
66
  }                                        \
67
while (0)
68
#endif
69
 
70
/* Force the generation of dwarf .debug_frame sections even if not
71
   compiling -g.  This guarantees that we can unwind the stack.  */
72
#define DWARF2_FRAME_INFO 1
73
 
74
#define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG
75
 
76
/* Generate .file/.loc directives, so that the assembler generates the
77
   line table.  */
78
#define DWARF2_ASM_LINE_DEBUG_INFO 1
79
 
80
#define CR16_TARGET_DATA_NEAR   cr16_is_data_model (DM_NEAR)
81
#define CR16_TARGET_DATA_MEDIUM cr16_is_data_model (DM_DEFAULT)
82
#define CR16_TARGET_DATA_FAR    cr16_is_data_model (DM_FAR)
83
 
84
/* Storage layout.  */
85
#define BITS_BIG_ENDIAN     0
86
 
87
#define BYTES_BIG_ENDIAN    0
88
 
89
#define WORDS_BIG_ENDIAN    0
90
 
91
#define UNITS_PER_WORD      2
92
 
93
/* Units per 32-bit (DWORD).  */
94
#define CR16_UNITS_PER_DWORD 4
95
 
96
#define POINTER_SIZE        32
97
 
98
#define PARM_BOUNDARY       16
99
 
100
#define STACK_BOUNDARY      (MAX (BIGGEST_ALIGNMENT, PARM_BOUNDARY))
101
 
102
#define FUNCTION_BOUNDARY   BIGGEST_ALIGNMENT
103
 
104
/* Biggest alignment on CR16C+ is 32-bit as internal bus is AMBA based
105
   where as CR16C is proprietary internal bus architecture.  */
106
#define BIGGEST_ALIGNMENT   ((TARGET_CR16CP) ? 32 : 16)
107
 
108
#define MAX_FIXED_MODE_SIZE 64
109
 
110
/* In CR16 arrays of chars are word-aligned, so strcpy () will be faster.  */
111
#define DATA_ALIGNMENT(TYPE, ALIGN)              \
112
  (((TREE_CODE (TYPE) == ARRAY_TYPE)             \
113
     && (TYPE_MODE (TREE_TYPE (TYPE)) == QImode) \
114
     && ((ALIGN) < BITS_PER_WORD))               \
115
     ? (BITS_PER_WORD) : (ALIGN))
116
 
117
/* In CR16 strings are word-aligne; strcpy from constants will be faster.  */
118
#define CONSTANT_ALIGNMENT(CONSTANT, ALIGN)                            \
119
  (((TREE_CODE (CONSTANT) == STRING_CST) && ((ALIGN) < BITS_PER_WORD)) \
120
     ? (BITS_PER_WORD) : (ALIGN))
121
 
122
#define STRICT_ALIGNMENT 0
123
 
124
#define PCC_BITFIELD_TYPE_MATTERS 1
125
 
126
/* Layout of source language data types.  */
127
#define INT_TYPE_SIZE       (TARGET_INT32 ? 32 : 16)
128
 
129
#define SHORT_TYPE_SIZE     16
130
 
131
#define LONG_TYPE_SIZE      32
132
 
133
#define LONG_LONG_TYPE_SIZE 64
134
 
135
#define FLOAT_TYPE_SIZE     32
136
 
137
#define DOUBLE_TYPE_SIZE    64
138
 
139
#define LONG_DOUBLE_TYPE_SIZE 64
140
 
141
#define DEFAULT_SIGNED_CHAR 1
142
 
143
#define SIZE_TYPE           "long unsigned int"
144
 
145
#define PTRDIFF_TYPE        "long int"
146
 
147
#define WCHAR_TYPE          "short unsigned int"
148
 
149
#define WCHAR_TYPE_SIZE     16
150
 
151
/* By default, the C++ compiler will use the lowest bit of the pointer
152
   to function to indicate a pointer-to-member-function points to a
153
   virtual member function.  However, in CR architecture FUNCTION_BOUNDARY
154
   indicates function addresses are always even, but function pointers can be
155
   odd (after right-shifting them when loading them into a register), and the
156
   default doesn't work.  In that case, the lowest bit of the delta
157
   field will be used (the remainder of the field is shifted to the left).  */
158
#define TARGET_PTRMEMFUNC_VBIT_LOCATION     ptrmemfunc_vbit_in_delta
159
 
160
/* Define DEFAULT_PCC_STRUCT_RETURN to 1 if all structure and union return
161
   values must be in memory.  */
162
#define DEFAULT_PCC_STRUCT_RETURN 0
163
 
164
/* Register usage.  */
165
 
166
/* First 32-bit register is R12.  */
167
#define CR16_FIRST_DWORD_REGISTER   12
168
 
169
#define FIRST_PSEUDO_REGISTER       16
170
 
171
/* 1 for registers that have pervasive standard uses
172
   and are not available for the register allocator.
173
   On the CR16, only the stack pointer (r15) is such.  */
174
#define FIXED_REGISTERS                               \
175
  {                                                   \
176
  /* r0  r1  r2  r3  r4  r5  r6  r7  r8  r9  r10.  */ \
177
    0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,        \
178
  /* r11 r12 r13 ra  sp.  */                          \
179
    0,  0,  0,  0,  1                                 \
180
  }
181
 
182
/* 1 for registers not available across function calls.
183
   These must include the FIXED_REGISTERS and also any
184
   registers that can be used without being saved.
185
   The latter must include the registers where values are returned
186
   and the register where structure-value addresses are passed.
187
 
188
   On the CR16, calls clobbers r0-r6 (scratch registers),
189
   ra (the return address) and sp (the stack pointer).  */
190
#define CALL_USED_REGISTERS                           \
191
  {                                                   \
192
  /* r0  r1  r2  r3  r4  r5  r6  r7  r8  r9  r10.  */ \
193
    1,  1,  1,  1,  1,  1,  1,  0,  0,  0,  0,        \
194
  /* r11 r12 r13 ra  sp.  */                          \
195
    0,  0,  0,  1,  1                                 \
196
  }
197
 
198
/* Returns 1 if the register is longer than word size, 0 otherwise.  */
199
#define LONG_REG_P(REGNO)                                                    \
200
  (HARD_REGNO_NREGS (REGNO,                                                  \
201
                     GET_MODE_WIDER_MODE (smallest_mode_for_size             \
202
                                         (BITS_PER_WORD, MODE_INT))) == 1)
203
 
204
#define HARD_REGNO_NREGS(REGNO, MODE)                                         \
205
 ((REGNO >= CR16_FIRST_DWORD_REGISTER)                                        \
206
  ? ((GET_MODE_SIZE (MODE) + CR16_UNITS_PER_DWORD - 1) / CR16_UNITS_PER_DWORD)\
207
  : ((GET_MODE_SIZE (MODE) + UNITS_PER_WORD       - 1) / UNITS_PER_WORD))
208
 
209
/* Nonzero if it is permissible to store a value of mode @var{mode} in hard
210
   register number @var{regno} (or in several registers starting with that
211
   one).  On the CR16 architecture, all registers can hold all modes,
212
   except that double precision floats (and double ints) must fall on
213
   even-register boundaries.  */
214
#define HARD_REGNO_MODE_OK(REGNO, MODE) cr16_hard_regno_mode_ok (REGNO, MODE)
215
 
216
#define NOTICE_UPDATE_CC(EXP, INSN) \
217
   notice_update_cc ((EXP))
218
 
219
/* Interrupt functions can only use registers that have already been
220
   saved by the prologue, even if they would normally be call-clobbered
221
   Check if sizes are same and then check if it is possible to rename.  */
222
#define HARD_REGNO_RENAME_OK(SRC, DEST)                 \
223
  (!cr16_interrupt_function_p () || (df_regs_ever_live_p (DEST)))
224
 
225
/* Exception handling stuff.  */
226
 
227
/*To ensure correct dwarf unwinding.  */
228
#define LIBGCC2_UNWIND_ATTRIBUTE __attribute__((optimize ("no-gcse","no-dse")))
229
 
230
#define gen_rtx_RA      gen_rtx_REG (Pmode, RETURN_ADDRESS_REGNUM)
231
 
232
/* Use (r8,r7) and (r10,r9) to pass exception handling information.  */
233
#define EH_RETURN_DATA_REGNO(N) (((N) < 2) ? (N*2 + 7) : INVALID_REGNUM)
234
 
235
#define DWARF2_UNWIND_INFO 1
236
 
237
/* (r5,r4) holds a stack adjustment for returning to a handler.  */
238
#define EH_RETURN_STACKADJ_RTX          gen_rtx_REG (Pmode, 4)
239
 
240
#define EH_RETURN_HANDLER_RTX \
241
  gen_rtx_MEM (Pmode, plus_constant (arg_pointer_rtx, -4))
242
 
243
#define INCOMING_RETURN_ADDR_RTX        gen_rtx_RA
244
 
245
#define DWARF_FRAME_RETURN_COLUMN       \
246
  DWARF_FRAME_REGNUM (RETURN_ADDRESS_REGNUM)
247
 
248
#define INCOMING_FRAME_SP_OFFSET                0
249
#define FRAME_POINTER_CFA_OFFSET(FNDECL)        0
250
 
251
/* A C expression whose value is RTL representing the value of the return
252
   address for the frame COUNT steps up from the current frame.  */
253
#define RETURN_ADDR_RTX(COUNT, FRAME)                                   \
254
  (0 == COUNT)  ?  gen_rtx_PLUS (Pmode, gen_rtx_RA, gen_rtx_RA)         \
255
                :  const0_rtx
256
 
257
#define MODES_TIEABLE_P(MODE1, MODE2)  \
258
  (GET_MODE_CLASS (MODE1) == GET_MODE_CLASS (MODE2))
259
 
260
enum reg_class
261
{
262
  NO_REGS,
263
  SHORT_REGS,
264
  LONG_REGS,
265
  NOSP_REGS,
266
  DOUBLE_BASE_REGS,
267
  GENERAL_REGS,
268
  ALL_REGS,
269
  LIM_REG_CLASSES
270
};
271
 
272
#define N_REG_CLASSES (int) LIM_REG_CLASSES
273
 
274
#define REG_CLASS_NAMES \
275
  {                     \
276
    "NO_REGS",          \
277
    "SHORT_REGS",       \
278
    "LONG_REGS",        \
279
    "NOSP_REGS",        \
280
    "DOUBLE_BASE_REGS", \
281
    "GENERAL_REGS",     \
282
    "ALL_REGS"          \
283
  }
284
 
285
#define REG_CLASS_CONTENTS                                      \
286
  {                                                             \
287
    {0x00000000}, /* NO_REGS                         */         \
288
    {0x00000FFF}, /* SHORT_REGS         : 0 - 11     */         \
289
    {0x0000F000}, /* LONG_REGS          : 12 - 15    */         \
290
    {0x00007FFF}, /* NOSP_REGS          : 0 - 14     */         \
291
    {0x0000F555}, /* DOUBLE_BASE_REGS   : 2,4,6,8,10 */         \
292
    {0x0000FFFF}, /* GENERAL_REGS       : 0 - 15     */         \
293
    {0x0000FFFF}  /* ALL_REGS           : 0 - 15     */         \
294
  }
295
 
296
#define TARGET_SMALL_REGISTER_CLASSES_FOR_MODE_P  hook_bool_mode_true
297
 
298
#define REGNO_REG_CLASS(REGNO)  cr16_regno_reg_class (REGNO)
299
 
300
#define BASE_REG_CLASS      GENERAL_REGS
301
 
302
#define MODE_BASE_REG_CLASS(MODE) \
303
  (GET_MODE_SIZE (MODE) <= 4 ?  (BASE_REG_CLASS) :  (DOUBLE_BASE_REGS))
304
 
305
#define INDEX_REG_CLASS      LONG_REGS
306
 
307
#define CR16_REGNO_OK_FOR_BASE_P(REGNO)                  \
308
  (((REGNO) < FIRST_PSEUDO_REGISTER)                     \
309
     || (reg_renumber && ((unsigned) reg_renumber[REGNO] \
310
                        < FIRST_PSEUDO_REGISTER)))
311
 
312
/* Use even-numbered reg for 64-bit accesses.  */
313
#define REGNO_MODE_OK_FOR_BASE_P(REGNO, MODE)     \
314
        (CR16_REGNO_OK_FOR_BASE_P(REGNO)  &&      \
315
          ((GET_MODE_SIZE (MODE) > 4  &&          \
316
             (REGNO) < CR16_FIRST_DWORD_REGISTER) \
317
             ? (0 == ((REGNO) & 1))               \
318
             : 1))
319
 
320
/* TODO: For now lets not support index addressing mode.  */
321
#define REGNO_OK_FOR_INDEX_P(REGNO)        \
322
  (((REGNO >= CR16_FIRST_DWORD_REGISTER)   \
323
     && ((REGNO) < FIRST_PSEUDO_REGISTER)) \
324
   || (reg_renumber                        \
325
       && (((unsigned) reg_renumber[REGNO] >= CR16_FIRST_DWORD_REGISTER)  \
326
            && ((unsigned) reg_renumber[REGNO] < FIRST_PSEUDO_REGISTER))) \
327
  )
328
 
329
#define PREFERRED_RELOAD_CLASS(X, CLASS) CLASS
330
 
331
/* The maximum number of consecutive registers of class CLASS needed to
332
   hold a value of mode MODE.
333
   On the CompactRISC architecture, the size of MODE in words.
334
   The size of MODE in double words for the class LONG_REGS.
335
 
336
   The following check assumes if the class is not LONG_REGS, then
337
   all (NO_REGS, SHORT_REGS, NOSP_REGS and GENERAL_REGS) other classes are
338
   short.  We may have to check if this can cause any degradation in
339
   performance.  */
340
#define CLASS_MAX_NREGS(CLASS, MODE) \
341
  (CLASS == LONG_REGS \
342
   ? (GET_MODE_SIZE (MODE) + CR16_UNITS_PER_DWORD - 1) / CR16_UNITS_PER_DWORD\
343
   : (GET_MODE_SIZE (MODE) + UNITS_PER_WORD - 1) / UNITS_PER_WORD)
344
 
345
/* Macros to check the range of integers . These macros were used across
346
   the port, majorly in constraints.md, predicates.md files. */
347
#define SIGNED_INT_FITS_N_BITS(imm, N)           \
348
  ((((imm) < ((HOST_WIDE_INT) 1 << ((N) - 1)))       \
349
      && ((imm) >= -((HOST_WIDE_INT) 1 << ((N) - 1)))) ? 1 : 0)
350
 
351
#define UNSIGNED_INT_FITS_N_BITS(imm, N) \
352
  (((imm) < ((HOST_WIDE_INT) 1 << (N)) && (imm) >= (HOST_WIDE_INT) 0) ? 1 : 0)
353
 
354
#define IN_RANGE_P(VALUE, LOW, HIGH)                            \
355
  ((((HOST_WIDE_INT)(VALUE)) >= (HOST_WIDE_INT)(LOW))           \
356
   && (((HOST_WIDE_INT)(VALUE)) <= ((HOST_WIDE_INT)(HIGH))))
357
 
358
#define IN_RAN(VALUE, LOW, HIGH)                             \
359
  (((((HOST_WIDE_INT)(VALUE)) >= (HOST_WIDE_INT)(LOW))       \
360
   && (((HOST_WIDE_INT)(VALUE)) <= ((HOST_WIDE_INT)(HIGH)))) ? 1 : 0)
361
 
362
/* This check is for sbit/cbit instruction.  */
363
#define OK_FOR_Z(OP) \
364
  ((GET_CODE (OP) == MEM && GET_CODE (XEXP (OP, 0)) == CONST_INT) \
365
   || (GET_CODE (OP) == MEM && GET_CODE (XEXP (OP, 0)) == REG) \
366
   || (GET_CODE (OP) == MEM && GET_CODE (XEXP (OP, 0)) == PLUS \
367
       && GET_CODE (XEXP ((XEXP (OP, 0)), 0)) == REG \
368
       && GET_CODE (XEXP ((XEXP (OP, 0)), 1)) == CONST_INT))
369
 
370
/* Stack layout and calling conventions.  */
371
#define STACK_GROWS_DOWNWARD
372
 
373
#define STARTING_FRAME_OFFSET   0
374
 
375
#define STACK_POINTER_REGNUM    15
376
 
377
#define FRAME_POINTER_REGNUM    13
378
 
379
#define ARG_POINTER_REGNUM      12
380
 
381
#define STATIC_CHAIN_REGNUM     1
382
 
383
#define RETURN_ADDRESS_REGNUM   14
384
 
385
#define FIRST_PARM_OFFSET(FNDECL) 0
386
 
387
#define ELIMINABLE_REGS                            \
388
  {                                                \
389
    { ARG_POINTER_REGNUM,   STACK_POINTER_REGNUM}, \
390
    { ARG_POINTER_REGNUM,   FRAME_POINTER_REGNUM}, \
391
    { FRAME_POINTER_REGNUM, STACK_POINTER_REGNUM}  \
392
  }
393
 
394
#define INITIAL_ELIMINATION_OFFSET(FROM, TO, OFFSET)              \
395
  do                                                              \
396
    {                                                             \
397
      (OFFSET) = cr16_initial_elimination_offset ((FROM), (TO));  \
398
    }                                                             \
399
  while (0)
400
 
401
/* Passing function arguments.  */
402
 
403
#define ACCUMULATE_OUTGOING_ARGS 0
404
 
405
#define PUSH_ARGS 1
406
 
407
#define PUSH_ROUNDING(BYTES) (((BYTES) + 1) & ~1)
408
 
409
#ifndef CUMULATIVE_ARGS
410
struct cumulative_args
411
{
412
  int ints;
413
  int last_parm_in_reg;
414
};
415
 
416
#define CUMULATIVE_ARGS struct cumulative_args
417
#endif
418
 
419
/* On the CR16 architecture, Varargs routines should receive their parameters
420
   on the stack.  */
421
 
422
#define INIT_CUMULATIVE_ARGS(CUM, FNTYPE, LIBNAME, FNDECL, N_NAMED_ARGS) \
423
  cr16_init_cumulative_args (&(CUM), (FNTYPE), (LIBNAME))
424
 
425
#define FUNCTION_ARG_REGNO_P(REGNO)  cr16_function_arg_regno_p (REGNO)
426
 
427
/* Generating code for profiling - NOT IMPLEMENTED.  */
428
#undef  FUNCTION_PROFILER
429
#define FUNCTION_PROFILER(STREAM, LABELNO)      \
430
{                                               \
431
  sorry ("profiler support for CR16");          \
432
}
433
 
434
/* Trampolines for nested functions - NOT SUPPORTED.  */
435
#define TRAMPOLINE_SIZE    16
436
 
437
/* ADDRESSING MODES.  */
438
 
439
#define CONSTANT_ADDRESS_P(X)       \
440
  (GET_CODE (X) == LABEL_REF        \
441
   || GET_CODE (X) == SYMBOL_REF    \
442
   || GET_CODE (X) == CONST         \
443
   || GET_CODE (X) == CONST_INT)
444
 
445
#define MAX_REGS_PER_ADDRESS    2
446
 
447
#define HAVE_POST_INCREMENT     0
448
#define HAVE_POST_DECREMENT     0
449
#define HAVE_POST_MODIFY_DISP   0
450
#define HAVE_POST_MODIFY_REG    0
451
 
452
#ifdef REG_OK_STRICT
453
#define CR16_REG_OK_FOR_BASE_P(X)       CR16_REGNO_OK_FOR_BASE_P (REGNO (X))
454
#define REG_MODE_OK_FOR_BASE_P(X, MODE) \
455
  REGNO_MODE_OK_FOR_BASE_P (REGNO(X), MODE)
456
#define REG_OK_FOR_INDEX_P(X)   REGNO_OK_FOR_INDEX_P (REGNO (X))
457
#else /* not REG_OK_STRICT.  */
458
#define CR16_REG_OK_FOR_BASE_P(X)       1
459
#define REG_MODE_OK_FOR_BASE_P(X, MODE) 1
460
#define REG_OK_FOR_INDEX_P(X)   1
461
#endif /* not REG_OK_STRICT.  */
462
 
463
/* Go to LABEL if ADDR (a legitimate address expression) has
464
   an effect that depends on the machine mode it is used for.  */
465
#define GO_IF_MODE_DEPENDENT_ADDRESS(ADDR, LABEL)
466
 
467
/* Assume best case (branch predicted).  */
468
#define BRANCH_COST(speed_p, predictable_p)       2
469
 
470
#define SLOW_BYTE_ACCESS  1
471
 
472
/* It is as good or better to call a constant function address than to
473
   call an address kept in a register.  */
474
#define NO_FUNCTION_CSE
475
 
476
/* Dividing the output into sections.  */
477
 
478
#define TEXT_SECTION_ASM_OP "\t.section\t.text"
479
 
480
#define DATA_SECTION_ASM_OP "\t.section\t.data"
481
 
482
#define BSS_SECTION_ASM_OP  "\t.section\t.bss"
483
 
484
/* Position independent code (PIC).  */
485
/* NEAR_PIC for -fpic option.  */
486
 
487
#define NEAR_PIC 1
488
 
489
/* FAR_PIC for -fPIC option.  */
490
 
491
#define FAR_PIC  2
492
 
493
#define PIC_OFFSET_TABLE_REGNUM  12
494
 
495
#define LEGITIMATE_PIC_OPERAND_P(X) legitimate_pic_operand_p (X)
496
 
497
/* Assembler format.  */
498
 
499
/* Character to start a comment.  */
500
#define ASM_COMMENT_START "#"
501
 
502
#define GLOBAL_ASM_OP "\t.globl\t"
503
 
504
#undef USER_LABEL_PREFIX
505
#define USER_LABEL_PREFIX "_"
506
 
507
#undef ASM_OUTPUT_LABELREF
508
#define ASM_OUTPUT_LABELREF(STREAM, NAME) \
509
  asm_fprintf (STREAM, "%U%s", (*targetm.strip_name_encoding) (NAME));
510
 
511
#define ASM_OUTPUT_SYMBOL_REF(STREAM, SYMBOL)   \
512
  do                                            \
513
    {                                           \
514
      const char *rn = XSTR (SYMBOL, 0);        \
515
      assemble_name (STREAM, rn);               \
516
      if (SYMBOL_REF_FUNCTION_P (SYMBOL))       \
517
      {                                         \
518
        fprintf ((STREAM), "@c");               \
519
      }                                         \
520
    }                                           \
521
  while (0)
522
 
523
#undef ASM_APP_ON
524
#define ASM_APP_ON   "#APP\n"
525
 
526
#undef ASM_APP_OFF
527
#define ASM_APP_OFF  "#NO_APP\n"
528
 
529
/* Switch into a generic section.  */
530
#define TARGET_ASM_NAMED_SECTION        default_elf_asm_named_section
531
 
532
#undef INIT_SECTION_ASM_OP
533
#define INIT_SECTION_ASM_OP             "\t.section\t.init"
534
 
535
#undef FINI_SECTION_ASM_OP
536
#define FINI_SECTION_ASM_OP             "\t.section\t.fini"
537
 
538
/* Instruction output.  */
539
 
540
#define REGISTER_NAMES                                     \
541
  {                                                        \
542
    "r0",  "r1",  "r2",  "r3",  "r4",  "r5",  "r6",  "r7", \
543
    "r8",  "r9",  "r10", "r11", "r12", "r13", "ra",  "sp"  \
544
  }
545
 
546
/* Output of dispatch tables.  */
547
 
548
/* Revisit. No PC relative case as label expressions are not
549
   properly supported in binutils else we could have done this:
550
   #define CASE_VECTOR_PC_RELATIVE (optimize_size ? 1 : 0).  */
551
#define CASE_VECTOR_PC_RELATIVE 0
552
 
553
#define ASM_OUTPUT_ADDR_DIFF_ELT(FILE, BODY, VALUE, REL)    \
554
  ((GET_MODE (BODY) == QImode)                              \
555
   ? fprintf ((FILE), "\t.byte (.L%d-.L%d) >> 1\n",         \
556
              VALUE, REL)                                   \
557
   : fprintf ((FILE), "\t.word (.L%d-.L%d) >> 1\n",         \
558
              VALUE, REL))
559
 
560
#define ASM_OUTPUT_ADDR_VEC_ELT(STREAM, VALUE) \
561
  asm_fprintf ((STREAM), "\t.long\t.L%d@c\n", (VALUE))
562
 
563
/* Alignment in assembler file.  */
564
 
565
#define ASM_OUTPUT_ALIGN(STREAM, POWER) \
566
  asm_fprintf ((STREAM), "\t.align\t%d\n", 1 << (POWER))
567
 
568
/* Miscellaneous parameters.  */
569
 
570
#define CASE_VECTOR_MODE  Pmode
571
 
572
#define MOVE_MAX 4
573
 
574
#define TRULY_NOOP_TRUNCATION(OUTPREC, INPREC)  1
575
 
576
#define STORE_FLAG_VALUE  1
577
 
578
#define Pmode SImode
579
 
580
#define FUNCTION_MODE QImode
581
 
582
/* Define this boolean macro(s) to indicate whether or not your architecture
583
   has (un)conditional branches that can span all of memory.  It is used in
584
   conjunction with an optimization that partitions hot and cold basic blocks
585
   into separate sections of the executable.
586
   CR16 contains branch instructions that span whole address space.  */
587
#define HAS_LONG_COND_BRANCH    1
588
#define HAS_LONG_UNCOND_BRANCH  1
589
 
590
#endif /* End of GCC_CR16_H.  */

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