OpenCores
URL https://opencores.org/ocsvn/openrisc/openrisc/trunk

Subversion Repositories openrisc

[/] [openrisc/] [trunk/] [gnu-stable/] [gcc-4.5.1/] [gcc/] [config/] [bfin/] [bfin.h] - Blame information for rev 847

Go to most recent revision | Details | Compare with Previous | View Log

Line No. Rev Author Line
1 282 jeremybenn 
/* Definitions for the Blackfin port.
2 
   Copyright (C) 2005, 2007, 2008, 2009 Free Software Foundation, Inc.
3 
   Contributed by Analog Devices.
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 _BFIN_CONFIG
22 
#define _BFIN_CONFIG
23 
 
24 
#define OBJECT_FORMAT_ELF
25 
 
26 
#define BRT 1
27 
#define BRF 0
28 
 
29 
/* CPU type.  */
30 
typedef enum bfin_cpu_type
31 
{
32 
  BFIN_CPU_UNKNOWN,
33 
  BFIN_CPU_BF512,
34 
  BFIN_CPU_BF514,
35 
  BFIN_CPU_BF516,
36 
  BFIN_CPU_BF518,
37 
  BFIN_CPU_BF522,
38 
  BFIN_CPU_BF523,
39 
  BFIN_CPU_BF524,
40 
  BFIN_CPU_BF525,
41 
  BFIN_CPU_BF526,
42 
  BFIN_CPU_BF527,
43 
  BFIN_CPU_BF531,
44 
  BFIN_CPU_BF532,
45 
  BFIN_CPU_BF533,
46 
  BFIN_CPU_BF534,
47 
  BFIN_CPU_BF536,
48 
  BFIN_CPU_BF537,
49 
  BFIN_CPU_BF538,
50 
  BFIN_CPU_BF539,
51 
  BFIN_CPU_BF542,
52 
  BFIN_CPU_BF542M,
53 
  BFIN_CPU_BF544,
54 
  BFIN_CPU_BF544M,
55 
  BFIN_CPU_BF547,
56 
  BFIN_CPU_BF547M,
57 
  BFIN_CPU_BF548,
58 
  BFIN_CPU_BF548M,
59 
  BFIN_CPU_BF549,
60 
  BFIN_CPU_BF549M,
61 
  BFIN_CPU_BF561
62 
} bfin_cpu_t;
63 
 
64 
/* Value of -mcpu= */
65 
extern bfin_cpu_t bfin_cpu_type;
66 
 
67 
/* Value of -msi-revision= */
68 
extern int bfin_si_revision;
69 
 
70 
extern unsigned int bfin_workarounds;
71 
 
72 
/* Print subsidiary information on the compiler version in use.  */
73 
#define TARGET_VERSION fprintf (stderr, " (BlackFin bfin)")
74 
 
75 
/* Run-time compilation parameters selecting different hardware subsets.  */
76 
 
77 
extern int target_flags;
78 
 
79 
/* Predefinition in the preprocessor for this target machine */
80 
#ifndef TARGET_CPU_CPP_BUILTINS
81 
#define TARGET_CPU_CPP_BUILTINS()               \
82 
  do                                            \
83 
    {                                           \
84 
      builtin_define_std ("bfin");              \
85 
      builtin_define_std ("BFIN");              \
86 
      builtin_define ("__ADSPBLACKFIN__");      \
87 
      builtin_define ("__ADSPLPBLACKFIN__");    \
88 
                                                \
89 
      switch (bfin_cpu_type)                    \
90 
        {                                       \
91 
        case BFIN_CPU_BF512:                    \
92 
          builtin_define ("__ADSPBF512__");     \
93 
          builtin_define ("__ADSPBF51x__");     \
94 
          break;                                \
95 
        case BFIN_CPU_BF514:                    \
96 
          builtin_define ("__ADSPBF514__");     \
97 
          builtin_define ("__ADSPBF51x__");     \
98 
          break;                                \
99 
        case BFIN_CPU_BF516:                    \
100 
          builtin_define ("__ADSPBF516__");     \
101 
          builtin_define ("__ADSPBF51x__");     \
102 
          break;                                \
103 
        case BFIN_CPU_BF518:                    \
104 
          builtin_define ("__ADSPBF518__");     \
105 
          builtin_define ("__ADSPBF51x__");     \
106 
          break;                                \
107 
        case BFIN_CPU_BF522:                    \
108 
          builtin_define ("__ADSPBF522__");     \
109 
          builtin_define ("__ADSPBF52x__");     \
110 
          break;                                \
111 
        case BFIN_CPU_BF523:                    \
112 
          builtin_define ("__ADSPBF523__");     \
113 
          builtin_define ("__ADSPBF52x__");     \
114 
          break;                                \
115 
        case BFIN_CPU_BF524:                    \
116 
          builtin_define ("__ADSPBF524__");     \
117 
          builtin_define ("__ADSPBF52x__");     \
118 
          break;                                \
119 
        case BFIN_CPU_BF525:                    \
120 
          builtin_define ("__ADSPBF525__");     \
121 
          builtin_define ("__ADSPBF52x__");     \
122 
          break;                                \
123 
        case BFIN_CPU_BF526:                    \
124 
          builtin_define ("__ADSPBF526__");     \
125 
          builtin_define ("__ADSPBF52x__");     \
126 
          break;                                \
127 
        case BFIN_CPU_BF527:                    \
128 
          builtin_define ("__ADSPBF527__");     \
129 
          builtin_define ("__ADSPBF52x__");     \
130 
          break;                                \
131 
        case BFIN_CPU_BF531:                    \
132 
          builtin_define ("__ADSPBF531__");     \
133 
          break;                                \
134 
        case BFIN_CPU_BF532:                    \
135 
          builtin_define ("__ADSPBF532__");     \
136 
          break;                                \
137 
        case BFIN_CPU_BF533:                    \
138 
          builtin_define ("__ADSPBF533__");     \
139 
          break;                                \
140 
        case BFIN_CPU_BF534:                    \
141 
          builtin_define ("__ADSPBF534__");     \
142 
          break;                                \
143 
        case BFIN_CPU_BF536:                    \
144 
          builtin_define ("__ADSPBF536__");     \
145 
          break;                                \
146 
        case BFIN_CPU_BF537:                    \
147 
          builtin_define ("__ADSPBF537__");     \
148 
          break;                                \
149 
        case BFIN_CPU_BF538:                    \
150 
          builtin_define ("__ADSPBF538__");     \
151 
          break;                                \
152 
        case BFIN_CPU_BF539:                    \
153 
          builtin_define ("__ADSPBF539__");     \
154 
          break;                                \
155 
        case BFIN_CPU_BF542M:                   \
156 
          builtin_define ("__ADSPBF542M__");    \
157 
        case BFIN_CPU_BF542:                    \
158 
          builtin_define ("__ADSPBF542__");     \
159 
          builtin_define ("__ADSPBF54x__");     \
160 
          break;                                \
161 
        case BFIN_CPU_BF544M:                   \
162 
          builtin_define ("__ADSPBF544M__");    \
163 
        case BFIN_CPU_BF544:                    \
164 
          builtin_define ("__ADSPBF544__");     \
165 
          builtin_define ("__ADSPBF54x__");     \
166 
          break;                                \
167 
        case BFIN_CPU_BF547M:                   \
168 
          builtin_define ("__ADSPBF547M__");    \
169 
        case BFIN_CPU_BF547:                    \
170 
          builtin_define ("__ADSPBF547__");     \
171 
          builtin_define ("__ADSPBF54x__");     \
172 
          break;                                \
173 
        case BFIN_CPU_BF548M:                   \
174 
          builtin_define ("__ADSPBF548M__");    \
175 
        case BFIN_CPU_BF548:                    \
176 
          builtin_define ("__ADSPBF548__");     \
177 
          builtin_define ("__ADSPBF54x__");     \
178 
          break;                                \
179 
        case BFIN_CPU_BF549M:                   \
180 
          builtin_define ("__ADSPBF549M__");    \
181 
        case BFIN_CPU_BF549:                    \
182 
          builtin_define ("__ADSPBF549__");     \
183 
          builtin_define ("__ADSPBF54x__");     \
184 
          break;                                \
185 
        case BFIN_CPU_BF561:                    \
186 
          builtin_define ("__ADSPBF561__");     \
187 
          break;                                \
188 
        }                                       \
189 
                                                \
190 
      if (bfin_si_revision != -1)               \
191 
        {                                       \
192 
          /* space of 0xnnnn and a NUL */       \
193 
          char *buf = XALLOCAVEC (char, 7);     \
194 
                                                \
195 
          sprintf (buf, "0x%04x", bfin_si_revision);                    \
196 
          builtin_define_with_value ("__SILICON_REVISION__", buf, 0);    \
197 
        }                                                               \
198 
                                                                        \
199 
      if (bfin_workarounds)                                             \
200 
        builtin_define ("__WORKAROUNDS_ENABLED");                       \
201 
      if (ENABLE_WA_SPECULATIVE_LOADS)                                  \
202 
        builtin_define ("__WORKAROUND_SPECULATIVE_LOADS");              \
203 
      if (ENABLE_WA_SPECULATIVE_SYNCS)                                  \
204 
        builtin_define ("__WORKAROUND_SPECULATIVE_SYNCS");              \
205 
      if (ENABLE_WA_INDIRECT_CALLS)                                     \
206 
        builtin_define ("__WORKAROUND_INDIRECT_CALLS");                 \
207 
      if (ENABLE_WA_RETS)                                               \
208 
        builtin_define ("__WORKAROUND_RETS");                           \
209 
                                                \
210 
      if (TARGET_FDPIC)                         \
211 
        {                                       \
212 
          builtin_define ("__BFIN_FDPIC__");    \
213 
          builtin_define ("__FDPIC__");         \
214 
        }                                       \
215 
      if (TARGET_ID_SHARED_LIBRARY              \
216 
          && !TARGET_SEP_DATA)                  \
217 
        builtin_define ("__ID_SHARED_LIB__");   \
218 
      if (flag_no_builtin)                      \
219 
        builtin_define ("__NO_BUILTIN");        \
220 
      if (TARGET_MULTICORE)                     \
221 
        builtin_define ("__BFIN_MULTICORE");    \
222 
      if (TARGET_COREA)                         \
223 
        builtin_define ("__BFIN_COREA");        \
224 
      if (TARGET_COREB)                         \
225 
        builtin_define ("__BFIN_COREB");        \
226 
      if (TARGET_SDRAM)                         \
227 
        builtin_define ("__BFIN_SDRAM");        \
228 
    }                                           \
229 
  while (0)
230 
#endif
231 
 
232 
#define DRIVER_SELF_SPECS SUBTARGET_DRIVER_SELF_SPECS   "\
233 
 %{mleaf-id-shared-library:%{!mid-shared-library:-mid-shared-library}} \
234 
 %{mfdpic:%{!fpic:%{!fpie:%{!fPIC:%{!fPIE:\
235 
            %{!fno-pic:%{!fno-pie:%{!fno-PIC:%{!fno-PIE:-fpie}}}}}}}}} \
236 
"
237 
#ifndef SUBTARGET_DRIVER_SELF_SPECS
238 
# define SUBTARGET_DRIVER_SELF_SPECS
239 
#endif
240 
 
241 
#define LINK_GCC_C_SEQUENCE_SPEC "\
242 
  %{mfast-fp:-lbffastfp} %G %L %{mfast-fp:-lbffastfp} %G \
243 
"
244 
 
245 
/* A C string constant that tells the GCC driver program options to pass to
246 
   the assembler.  It can also specify how to translate options you give to GNU
247 
   CC into options for GCC to pass to the assembler.  See the file `sun3.h'
248 
   for an example of this.
249 
 
250 
   Do not define this macro if it does not need to do anything.
251 
 
252 
   Defined in svr4.h.  */
253 
#undef  ASM_SPEC
254 
#define ASM_SPEC "\
255 
%{G*} %{v} %{n} %{T} %{Ym,*} %{Yd,*} %{Wa,*:%*} \
256 
    %{mno-fdpic:-mnopic} %{mfdpic}"
257 
 
258 
#define LINK_SPEC "\
259 
%{h*} %{v:-V} \
260 
%{b} \
261 
%{mfdpic:-melf32bfinfd -z text} \
262 
%{static:-dn -Bstatic} \
263 
%{shared:-G -Bdynamic} \
264 
%{symbolic:-Bsymbolic} \
265 
%{G*} \
266 
%{YP,*} \
267 
%{Qy:} %{!Qn:-Qy} \
268 
-init __init -fini __fini "
269 
 
270 
/* Generate DSP instructions, like DSP halfword loads */
271 
#define TARGET_DSP                      (1)
272 
 
273 
#define TARGET_DEFAULT 0
274 
 
275 
/* Maximum number of library ids we permit */
276 
#define MAX_LIBRARY_ID 255
277 
 
278 
extern const char *bfin_library_id_string;
279 
 
280 
/* Sometimes certain combinations of command options do not make
281 
   sense on a particular target machine.  You can define a macro
282 
   `OVERRIDE_OPTIONS' to take account of this.  This macro, if
283 
   defined, is executed once just after all the command options have
284 
   been parsed.
285 
 
286 
   Don't use this macro to turn on various extra optimizations for
287 
   `-O'.  That is what `OPTIMIZATION_OPTIONS' is for.  */
288 
 
289 
#define OVERRIDE_OPTIONS override_options ()
290 
 
291 
#define FUNCTION_MODE    SImode
292 
#define Pmode            SImode
293 
 
294 
/* store-condition-codes instructions store 0 for false
295 
   This is the value stored for true.  */
296 
#define STORE_FLAG_VALUE 1
297 
 
298 
/* Define this if pushing a word on the stack
299 
   makes the stack pointer a smaller address.  */
300 
#define STACK_GROWS_DOWNWARD
301 
 
302 
#define STACK_PUSH_CODE PRE_DEC
303 
 
304 
/* Define this to nonzero if the nominal address of the stack frame
305 
   is at the high-address end of the local variables;
306 
   that is, each additional local variable allocated
307 
   goes at a more negative offset in the frame.  */
308 
#define FRAME_GROWS_DOWNWARD 1
309 
 
310 
/* We define a dummy ARGP register; the parameters start at offset 0 from
311 
   it. */
312 
#define FIRST_PARM_OFFSET(DECL) 0
313 
 
314 
/* Offset within stack frame to start allocating local variables at.
315 
   If FRAME_GROWS_DOWNWARD, this is the offset to the END of the
316 
   first local allocated.  Otherwise, it is the offset to the BEGINNING
317 
   of the first local allocated.  */
318 
#define STARTING_FRAME_OFFSET 0
319 
 
320 
/* Register to use for pushing function arguments.  */
321 
#define STACK_POINTER_REGNUM REG_P6
322 
 
323 
/* Base register for access to local variables of the function.  */
324 
#define FRAME_POINTER_REGNUM REG_P7
325 
 
326 
/* A dummy register that will be eliminated to either FP or SP.  */
327 
#define ARG_POINTER_REGNUM REG_ARGP
328 
 
329 
/* `PIC_OFFSET_TABLE_REGNUM'
330 
     The register number of the register used to address a table of
331 
     static data addresses in memory.  In some cases this register is
332 
     defined by a processor's "application binary interface" (ABI).
333 
     When this macro is defined, RTL is generated for this register
334 
     once, as with the stack pointer and frame pointer registers.  If
335 
     this macro is not defined, it is up to the machine-dependent files
336 
     to allocate such a register (if necessary). */
337 
#define PIC_OFFSET_TABLE_REGNUM (REG_P5)
338 
 
339 
#define FDPIC_FPTR_REGNO REG_P1
340 
#define FDPIC_REGNO REG_P3
341 
#define OUR_FDPIC_REG   get_hard_reg_initial_val (SImode, FDPIC_REGNO)
342 
 
343 
/* A static chain register for nested functions.  We need to use a
344 
   call-clobbered register for this.  */
345 
#define STATIC_CHAIN_REGNUM REG_P2
346 
 
347 
/* Define this if functions should assume that stack space has been
348 
   allocated for arguments even when their values are passed in
349 
   registers.
350 
 
351 
   The value of this macro is the size, in bytes, of the area reserved for
352 
   arguments passed in registers.
353 
 
354 
   This space can either be allocated by the caller or be a part of the
355 
   machine-dependent stack frame: `OUTGOING_REG_PARM_STACK_SPACE'
356 
   says which.  */
357 
#define FIXED_STACK_AREA 12
358 
#define REG_PARM_STACK_SPACE(FNDECL) FIXED_STACK_AREA
359 
 
360 
/* Define this if the above stack space is to be considered part of the
361 
 * space allocated by the caller.  */
362 
#define OUTGOING_REG_PARM_STACK_SPACE(FNTYPE) 1
363 
 
364 
/* Define this if the maximum size of all the outgoing args is to be
365 
   accumulated and pushed during the prologue.  The amount can be
366 
   found in the variable crtl->outgoing_args_size. */
367 
#define ACCUMULATE_OUTGOING_ARGS 1
368 
 
369 
/*#define DATA_ALIGNMENT(TYPE, BASIC-ALIGN) for arrays.. */
370 
 
371 
/* If defined, a C expression to compute the alignment for a local
372 
   variable.  TYPE is the data type, and ALIGN is the alignment that
373 
   the object would ordinarily have.  The value of this macro is used
374 
   instead of that alignment to align the object.
375 
 
376 
   If this macro is not defined, then ALIGN is used.
377 
 
378 
   One use of this macro is to increase alignment of medium-size
379 
   data to make it all fit in fewer cache lines.  */
380 
 
381 
#define LOCAL_ALIGNMENT(TYPE, ALIGN) bfin_local_alignment ((TYPE), (ALIGN))
382 
 
383 
/* Make strings word-aligned so strcpy from constants will be faster.  */
384 
#define CONSTANT_ALIGNMENT(EXP, ALIGN)  \
385 
  (TREE_CODE (EXP) == STRING_CST        \
386 
   && (ALIGN) < BITS_PER_WORD ? BITS_PER_WORD : (ALIGN))
387 
 
388 
#define TRAMPOLINE_SIZE (TARGET_FDPIC ? 30 : 18)
389 
 
390 
/* Definitions for register eliminations.
391 
 
392 
   This is an array of structures.  Each structure initializes one pair
393 
   of eliminable registers.  The "from" register number is given first,
394 
   followed by "to".  Eliminations of the same "from" register are listed
395 
   in order of preference.
396 
 
397 
   There are two registers that can always be eliminated on the i386.
398 
   The frame pointer and the arg pointer can be replaced by either the
399 
   hard frame pointer or to the stack pointer, depending upon the
400 
   circumstances.  The hard frame pointer is not used before reload and
401 
   so it is not eligible for elimination.  */
402 
 
403 
#define ELIMINABLE_REGS                         \
404 
{{ ARG_POINTER_REGNUM, STACK_POINTER_REGNUM},   \
405 
 { ARG_POINTER_REGNUM, FRAME_POINTER_REGNUM},   \
406 
 { FRAME_POINTER_REGNUM, STACK_POINTER_REGNUM}} \
407 
 
408 
/* Define the offset between two registers, one to be eliminated, and the other
409 
   its replacement, at the start of a routine.  */
410 
 
411 
#define INITIAL_ELIMINATION_OFFSET(FROM, TO, OFFSET) \
412 
  ((OFFSET) = bfin_initial_elimination_offset ((FROM), (TO)))
413 
 
414 
/* This processor has
415 
   8 data register for doing arithmetic
416 
   8  pointer register for doing addressing, including
417 
      1  stack pointer P6
418 
      1  frame pointer P7
419 
   4 sets of indexing registers (I0-3, B0-3, L0-3, M0-3)
420 
   1  condition code flag register CC
421 
   5  return address registers RETS/I/X/N/E
422 
   1  arithmetic status register (ASTAT).  */
423 
 
424 
#define FIRST_PSEUDO_REGISTER 50
425 
 
426 
#define D_REGNO_P(X) ((X) <= REG_R7)
427 
#define P_REGNO_P(X) ((X) >= REG_P0 && (X) <= REG_P7)
428 
#define I_REGNO_P(X) ((X) >= REG_I0 && (X) <= REG_I3)
429 
#define DP_REGNO_P(X) (D_REGNO_P (X) || P_REGNO_P (X))
430 
#define ADDRESS_REGNO_P(X) ((X) >= REG_P0 && (X) <= REG_M3)
431 
#define DREG_P(X) (REG_P (X) && D_REGNO_P (REGNO (X)))
432 
#define PREG_P(X) (REG_P (X) && P_REGNO_P (REGNO (X)))
433 
#define IREG_P(X) (REG_P (X) && I_REGNO_P (REGNO (X)))
434 
#define DPREG_P(X) (REG_P (X) && DP_REGNO_P (REGNO (X)))
435 
 
436 
#define REGISTER_NAMES { \
437 
  "R0", "R1", "R2", "R3", "R4", "R5", "R6", "R7", \
438 
  "P0", "P1", "P2", "P3", "P4", "P5", "SP", "FP", \
439 
  "I0", "I1", "I2", "I3", "B0", "B1", "B2", "B3", \
440 
  "L0", "L1", "L2", "L3", "M0", "M1", "M2", "M3", \
441 
  "A0", "A1", \
442 
  "CC", \
443 
  "RETS", "RETI", "RETX", "RETN", "RETE", "ASTAT", "SEQSTAT", "USP", \
444 
  "ARGP", \
445 
  "LT0", "LT1", "LC0", "LC1", "LB0", "LB1" \
446 
}
447 
 
448 
#define SHORT_REGISTER_NAMES { \
449 
        "R0.L", "R1.L", "R2.L", "R3.L", "R4.L", "R5.L", "R6.L", "R7.L", \
450 
        "P0.L", "P1.L", "P2.L", "P3.L", "P4.L", "P5.L", "SP.L", "FP.L", \
451 
        "I0.L", "I1.L", "I2.L", "I3.L", "B0.L", "B1.L", "B2.L", "B3.L", \
452 
        "L0.L", "L1.L", "L2.L", "L3.L", "M0.L", "M1.L", "M2.L", "M3.L", }
453 
 
454 
#define HIGH_REGISTER_NAMES { \
455 
        "R0.H", "R1.H", "R2.H", "R3.H", "R4.H", "R5.H", "R6.H", "R7.H", \
456 
        "P0.H", "P1.H", "P2.H", "P3.H", "P4.H", "P5.H", "SP.H", "FP.H", \
457 
        "I0.H", "I1.H", "I2.H", "I3.H", "B0.H", "B1.H", "B2.H", "B3.H", \
458 
        "L0.H", "L1.H", "L2.H", "L3.H", "M0.H", "M1.H", "M2.H", "M3.H", }
459 
 
460 
#define DREGS_PAIR_NAMES { \
461 
  "R1:0.p", 0, "R3:2.p", 0, "R5:4.p", 0, "R7:6.p", 0,  }
462 
 
463 
#define BYTE_REGISTER_NAMES { \
464 
  "R0.B", "R1.B", "R2.B", "R3.B", "R4.B", "R5.B", "R6.B", "R7.B",  }
465 
 
466 
 
467 
/* 1 for registers that have pervasive standard uses
468 
   and are not available for the register allocator.  */
469 
 
470 
#define FIXED_REGISTERS \
471 
/*r0 r1 r2 r3 r4 r5 r6 r7   p0 p1 p2 p3 p4 p5 p6 p7 */ \
472 
{ 0, 0, 0, 0, 0, 0, 0, 0,   0, 0, 0, 0, 0, 0, 1, 0,    \
473 
/*i0 i1 i2 i3 b0 b1 b2 b3   l0 l1 l2 l3 m0 m1 m2 m3 */ \
474 
  0, 0, 0, 0, 0, 0, 0, 0,   1, 1, 1, 1, 0, 0, 0, 0,    \
475 
/*a0 a1 cc rets/i/x/n/e     astat seqstat usp argp lt0/1 lc0/1 */ \
476 
  0, 0, 0, 1, 1, 1, 1, 1,   1, 1, 1, 1, 1, 1, 1, 1,    \
477 
/*lb0/1 */ \
478 
  1, 1  \
479 
}
480 
 
481 
/* 1 for registers not available across function calls.
482 
   These must include the FIXED_REGISTERS and also any
483 
   registers that can be used without being saved.
484 
   The latter must include the registers where values are returned
485 
   and the register where structure-value addresses are passed.
486 
   Aside from that, you can include as many other registers as you like.  */
487 
 
488 
#define CALL_USED_REGISTERS \
489 
/*r0 r1 r2 r3 r4 r5 r6 r7   p0 p1 p2 p3 p4 p5 p6 p7 */ \
490 
{ 1, 1, 1, 1, 0, 0, 0, 0,   1, 1, 1, 0, 0, 0, 1, 0, \
491 
/*i0 i1 i2 i3 b0 b1 b2 b3   l0 l1 l2 l3 m0 m1 m2 m3 */ \
492 
  1, 1, 1, 1, 1, 1, 1, 1,   1, 1, 1, 1, 1, 1, 1, 1,   \
493 
/*a0 a1 cc rets/i/x/n/e     astat seqstat usp argp lt0/1 lc0/1 */ \
494 
  1, 1, 1, 1, 1, 1, 1, 1,   1, 1, 1, 1, 1, 1, 1, 1, \
495 
/*lb0/1 */ \
496 
  1, 1  \
497 
}
498 
 
499 
/* Order in which to allocate registers.  Each register must be
500 
   listed once, even those in FIXED_REGISTERS.  List frame pointer
501 
   late and fixed registers last.  Note that, in general, we prefer
502 
   registers listed in CALL_USED_REGISTERS, keeping the others
503 
   available for storage of persistent values. */
504 
 
505 
#define REG_ALLOC_ORDER \
506 
{ REG_R0, REG_R1, REG_R2, REG_R3, REG_R7, REG_R6, REG_R5, REG_R4, \
507 
  REG_P2, REG_P1, REG_P0, REG_P5, REG_P4, REG_P3, REG_P6, REG_P7, \
508 
  REG_A0, REG_A1, \
509 
  REG_I0, REG_I1, REG_I2, REG_I3, REG_B0, REG_B1, REG_B2, REG_B3, \
510 
  REG_L0, REG_L1, REG_L2, REG_L3, REG_M0, REG_M1, REG_M2, REG_M3, \
511 
  REG_RETS, REG_RETI, REG_RETX, REG_RETN, REG_RETE,               \
512 
  REG_ASTAT, REG_SEQSTAT, REG_USP,                                \
513 
  REG_CC, REG_ARGP,                                               \
514 
  REG_LT0, REG_LT1, REG_LC0, REG_LC1, REG_LB0, REG_LB1            \
515 
}
516 
 
517 
/* Macro to conditionally modify fixed_regs/call_used_regs.  */
518 
#define CONDITIONAL_REGISTER_USAGE                      \
519 
  {                                                     \
520 
    conditional_register_usage();                       \
521 
    if (TARGET_FDPIC)                                   \
522 
      call_used_regs[FDPIC_REGNO] = 1;                  \
523 
    if (!TARGET_FDPIC && flag_pic)                      \
524 
      {                                                 \
525 
        fixed_regs[PIC_OFFSET_TABLE_REGNUM] = 1;        \
526 
        call_used_regs[PIC_OFFSET_TABLE_REGNUM] = 1;    \
527 
      }                                                 \
528 
  }
529 
 
530 
/* Define the classes of registers for register constraints in the
531 
   machine description.  Also define ranges of constants.
532 
 
533 
   One of the classes must always be named ALL_REGS and include all hard regs.
534 
   If there is more than one class, another class must be named NO_REGS
535 
   and contain no registers.
536 
 
537 
   The name GENERAL_REGS must be the name of a class (or an alias for
538 
   another name such as ALL_REGS).  This is the class of registers
539 
   that is allowed by "g" or "r" in a register constraint.
540 
   Also, registers outside this class are allocated only when
541 
   instructions express preferences for them.
542 
 
543 
   The classes must be numbered in nondecreasing order; that is,
544 
   a larger-numbered class must never be contained completely
545 
   in a smaller-numbered class.
546 
 
547 
   For any two classes, it is very desirable that there be another
548 
   class that represents their union. */
549 
 
550 
 
551 
enum reg_class
552 
{
553 
  NO_REGS,
554 
  IREGS,
555 
  BREGS,
556 
  LREGS,
557 
  MREGS,
558 
  CIRCREGS, /* Circular buffering registers, Ix, Bx, Lx together form.  See Automatic Circular Buffering.  */
559 
  DAGREGS,
560 
  EVEN_AREGS,
561 
  ODD_AREGS,
562 
  AREGS,
563 
  CCREGS,
564 
  EVEN_DREGS,
565 
  ODD_DREGS,
566 
  D0REGS,
567 
  D1REGS,
568 
  D2REGS,
569 
  D3REGS,
570 
  D4REGS,
571 
  D5REGS,
572 
  D6REGS,
573 
  D7REGS,
574 
  DREGS,
575 
  P0REGS,
576 
  FDPIC_REGS,
577 
  FDPIC_FPTR_REGS,
578 
  PREGS_CLOBBERED,
579 
  PREGS,
580 
  IPREGS,
581 
  DPREGS,
582 
  MOST_REGS,
583 
  LT_REGS,
584 
  LC_REGS,
585 
  LB_REGS,
586 
  PROLOGUE_REGS,
587 
  NON_A_CC_REGS,
588 
  ALL_REGS, LIM_REG_CLASSES
589 
};
590 
 
591 
#define N_REG_CLASSES ((int)LIM_REG_CLASSES)
592 
 
593 
#define GENERAL_REGS DPREGS
594 
 
595 
/* Give names of register classes as strings for dump file.   */
596 
 
597 
#define REG_CLASS_NAMES \
598 
{  "NO_REGS",           \
599 
   "IREGS",             \
600 
   "BREGS",             \
601 
   "LREGS",             \
602 
   "MREGS",             \
603 
   "CIRCREGS",          \
604 
   "DAGREGS",           \
605 
   "EVEN_AREGS",        \
606 
   "ODD_AREGS",         \
607 
   "AREGS",             \
608 
   "CCREGS",            \
609 
   "EVEN_DREGS",        \
610 
   "ODD_DREGS",         \
611 
   "D0REGS",            \
612 
   "D1REGS",            \
613 
   "D2REGS",            \
614 
   "D3REGS",            \
615 
   "D4REGS",            \
616 
   "D5REGS",            \
617 
   "D6REGS",            \
618 
   "D7REGS",            \
619 
   "DREGS",             \
620 
   "P0REGS",            \
621 
   "FDPIC_REGS",        \
622 
   "FDPIC_FPTR_REGS",   \
623 
   "PREGS_CLOBBERED",   \
624 
   "PREGS",             \
625 
   "IPREGS",            \
626 
   "DPREGS",            \
627 
   "MOST_REGS",         \
628 
   "LT_REGS",           \
629 
   "LC_REGS",           \
630 
   "LB_REGS",           \
631 
   "PROLOGUE_REGS",     \
632 
   "NON_A_CC_REGS",     \
633 
   "ALL_REGS" }
634 
 
635 
/* An initializer containing the contents of the register classes, as integers
636 
   which are bit masks.  The Nth integer specifies the contents of class N.
637 
   The way the integer MASK is interpreted is that register R is in the class
638 
   if `MASK & (1 << R)' is 1.
639 
 
640 
   When the machine has more than 32 registers, an integer does not suffice.
641 
   Then the integers are replaced by sub-initializers, braced groupings
642 
   containing several integers.  Each sub-initializer must be suitable as an
643 
   initializer for the type `HARD_REG_SET' which is defined in
644 
   `hard-reg-set.h'.  */
645 
 
646 
/* NOTE: DSP registers, IREGS - AREGS, are not GENERAL_REGS.  We use
647 
   MOST_REGS as the union of DPREGS and DAGREGS.  */
648 
 
649 
#define REG_CLASS_CONTENTS \
650 
    /* 31 - 0       63-32   */ \
651 
{   { 0x00000000,    0 },               /* NO_REGS */   \
652 
    { 0x000f0000,    0 },               /* IREGS */     \
653 
    { 0x00f00000,    0 },               /* BREGS */             \
654 
    { 0x0f000000,    0 },               /* LREGS */     \
655 
    { 0xf0000000,    0 },               /* MREGS */   \
656 
    { 0x0fff0000,    0 },               /* CIRCREGS */   \
657 
    { 0xffff0000,    0 },               /* DAGREGS */   \
658 
    { 0x00000000,    0x1 },             /* EVEN_AREGS */   \
659 
    { 0x00000000,    0x2 },             /* ODD_AREGS */   \
660 
    { 0x00000000,    0x3 },             /* AREGS */   \
661 
    { 0x00000000,    0x4 },             /* CCREGS */  \
662 
    { 0x00000055,    0 },               /* EVEN_DREGS */   \
663 
    { 0x000000aa,    0 },               /* ODD_DREGS */   \
664 
    { 0x00000001,    0 },               /* D0REGS */   \
665 
    { 0x00000002,    0 },               /* D1REGS */   \
666 
    { 0x00000004,    0 },               /* D2REGS */   \
667 
    { 0x00000008,    0 },               /* D3REGS */   \
668 
    { 0x00000010,    0 },               /* D4REGS */   \
669 
    { 0x00000020,    0 },               /* D5REGS */   \
670 
    { 0x00000040,    0 },               /* D6REGS */   \
671 
    { 0x00000080,    0 },               /* D7REGS */   \
672 
    { 0x000000ff,    0 },               /* DREGS */   \
673 
    { 0x00000100,    0x000 },           /* P0REGS */   \
674 
    { 0x00000800,    0x000 },           /* FDPIC_REGS */   \
675 
    { 0x00000200,    0x000 },           /* FDPIC_FPTR_REGS */   \
676 
    { 0x00004700,    0x800 },           /* PREGS_CLOBBERED */   \
677 
    { 0x0000ff00,    0x800 },           /* PREGS */   \
678 
    { 0x000fff00,    0x800 },           /* IPREGS */    \
679 
    { 0x0000ffff,    0x800 },           /* DPREGS */   \
680 
    { 0xffffffff,    0x800 },           /* MOST_REGS */\
681 
    { 0x00000000,    0x3000 },          /* LT_REGS */\
682 
    { 0x00000000,    0xc000 },          /* LC_REGS */\
683 
    { 0x00000000,    0x30000 },         /* LB_REGS */\
684 
    { 0x00000000,    0x3f7f8 },         /* PROLOGUE_REGS */\
685 
    { 0xffffffff,    0x3fff8 },         /* NON_A_CC_REGS */\
686 
    { 0xffffffff,    0x3ffff }}         /* ALL_REGS */
687 
 
688 
#define IREG_POSSIBLE_P(OUTER)                               \
689 
  ((OUTER) == POST_INC || (OUTER) == PRE_INC                 \
690 
   || (OUTER) == POST_DEC || (OUTER) == PRE_DEC              \
691 
   || (OUTER) == MEM || (OUTER) == ADDRESS)
692 
 
693 
#define MODE_CODE_BASE_REG_CLASS(MODE, OUTER, INDEX)                    \
694 
  ((MODE) == HImode && IREG_POSSIBLE_P (OUTER) ? IPREGS : PREGS)
695 
 
696 
#define INDEX_REG_CLASS         PREGS
697 
 
698 
#define REGNO_OK_FOR_BASE_STRICT_P(X, MODE, OUTER, INDEX)       \
699 
  (P_REGNO_P (X) || (X) == REG_ARGP                             \
700 
   || (IREG_POSSIBLE_P (OUTER) && (MODE) == HImode              \
701 
       && I_REGNO_P (X)))
702 
 
703 
#define REGNO_OK_FOR_BASE_NONSTRICT_P(X, MODE, OUTER, INDEX)    \
704 
  ((X) >= FIRST_PSEUDO_REGISTER                                 \
705 
   || REGNO_OK_FOR_BASE_STRICT_P (X, MODE, OUTER, INDEX))
706 
 
707 
#ifdef REG_OK_STRICT
708 
#define REGNO_MODE_CODE_OK_FOR_BASE_P(X, MODE, OUTER, INDEX) \
709 
  REGNO_OK_FOR_BASE_STRICT_P (X, MODE, OUTER, INDEX)
710 
#else
711 
#define REGNO_MODE_CODE_OK_FOR_BASE_P(X, MODE, OUTER, INDEX) \
712 
  REGNO_OK_FOR_BASE_NONSTRICT_P (X, MODE, OUTER, INDEX)
713 
#endif
714 
 
715 
#define REGNO_OK_FOR_INDEX_P(X)   0
716 
 
717 
/* The same information, inverted:
718 
   Return the class number of the smallest class containing
719 
   reg number REGNO.  This could be a conditional expression
720 
   or could index an array.  */
721 
 
722 
#define REGNO_REG_CLASS(REGNO) \
723 
((REGNO) == REG_R0 ? D0REGS                             \
724 
 : (REGNO) == REG_R1 ? D1REGS                           \
725 
 : (REGNO) == REG_R2 ? D2REGS                           \
726 
 : (REGNO) == REG_R3 ? D3REGS                           \
727 
 : (REGNO) == REG_R4 ? D4REGS                           \
728 
 : (REGNO) == REG_R5 ? D5REGS                           \
729 
 : (REGNO) == REG_R6 ? D6REGS                           \
730 
 : (REGNO) == REG_R7 ? D7REGS                           \
731 
 : (REGNO) == REG_P0 ? P0REGS                           \
732 
 : (REGNO) < REG_I0 ? PREGS                             \
733 
 : (REGNO) == REG_ARGP ? PREGS                          \
734 
 : (REGNO) >= REG_I0 && (REGNO) <= REG_I3 ? IREGS       \
735 
 : (REGNO) >= REG_L0 && (REGNO) <= REG_L3 ? LREGS       \
736 
 : (REGNO) >= REG_B0 && (REGNO) <= REG_B3 ? BREGS       \
737 
 : (REGNO) >= REG_M0 && (REGNO) <= REG_M3 ? MREGS       \
738 
 : (REGNO) == REG_A0 || (REGNO) == REG_A1 ? AREGS       \
739 
 : (REGNO) == REG_LT0 || (REGNO) == REG_LT1 ? LT_REGS   \
740 
 : (REGNO) == REG_LC0 || (REGNO) == REG_LC1 ? LC_REGS   \
741 
 : (REGNO) == REG_LB0 || (REGNO) == REG_LB1 ? LB_REGS   \
742 
 : (REGNO) == REG_CC ? CCREGS                           \
743 
 : (REGNO) >= REG_RETS ? PROLOGUE_REGS                  \
744 
 : NO_REGS)
745 
 
746 
/* The following macro defines cover classes for Integrated Register
747 
   Allocator.  Cover classes is a set of non-intersected register
748 
   classes covering all hard registers used for register allocation
749 
   purpose.  Any move between two registers of a cover class should be
750 
   cheaper than load or store of the registers.  The macro value is
751 
   array of register classes with LIM_REG_CLASSES used as the end
752 
   marker.  */
753 
 
754 
#define IRA_COVER_CLASSES                               \
755 
{                                                       \
756 
    MOST_REGS, AREGS, CCREGS, LIM_REG_CLASSES           \
757 
}
758 
 
759 
/* When defined, the compiler allows registers explicitly used in the
760 
   rtl to be used as spill registers but prevents the compiler from
761 
   extending the lifetime of these registers. */
762 
#define SMALL_REGISTER_CLASSES 1
763 
 
764 
#define CLASS_LIKELY_SPILLED_P(CLASS) \
765 
    ((CLASS) == PREGS_CLOBBERED \
766 
     || (CLASS) == PROLOGUE_REGS \
767 
     || (CLASS) == P0REGS \
768 
     || (CLASS) == D0REGS \
769 
     || (CLASS) == D1REGS \
770 
     || (CLASS) == D2REGS \
771 
     || (CLASS) == CCREGS)
772 
 
773 
/* Do not allow to store a value in REG_CC for any mode */
774 
/* Do not allow to store value in pregs if mode is not SI*/
775 
#define HARD_REGNO_MODE_OK(REGNO, MODE) hard_regno_mode_ok((REGNO), (MODE))
776 
 
777 
/* Return the maximum number of consecutive registers
778 
   needed to represent mode MODE in a register of class CLASS.  */
779 
#define CLASS_MAX_NREGS(CLASS, MODE)                                    \
780 
  ((MODE) == V2PDImode && (CLASS) == AREGS ? 2                          \
781 
   : ((GET_MODE_SIZE (MODE) + UNITS_PER_WORD - 1) / UNITS_PER_WORD))
782 
 
783 
#define HARD_REGNO_NREGS(REGNO, MODE) \
784 
  ((MODE) == PDImode && ((REGNO) == REG_A0 || (REGNO) == REG_A1) ? 1    \
785 
   : (MODE) == V2PDImode && ((REGNO) == REG_A0 || (REGNO) == REG_A1) ? 2 \
786 
   : CLASS_MAX_NREGS (GENERAL_REGS, MODE))
787 
 
788 
/* A C expression that is nonzero if hard register TO can be
789 
   considered for use as a rename register for FROM register */
790 
#define HARD_REGNO_RENAME_OK(FROM, TO) bfin_hard_regno_rename_ok (FROM, TO)
791 
 
792 
/* A C expression that is nonzero if it is desirable to choose
793 
   register allocation so as to avoid move instructions between a
794 
   value of mode MODE1 and a value of mode MODE2.
795 
 
796 
   If `HARD_REGNO_MODE_OK (R, MODE1)' and `HARD_REGNO_MODE_OK (R,
797 
   MODE2)' are ever different for any R, then `MODES_TIEABLE_P (MODE1,
798 
   MODE2)' must be zero. */
799 
#define MODES_TIEABLE_P(MODE1, MODE2)                   \
800 
 ((MODE1) == (MODE2)                                    \
801 
  || ((GET_MODE_CLASS (MODE1) == MODE_INT               \
802 
       || GET_MODE_CLASS (MODE1) == MODE_FLOAT)         \
803 
      && (GET_MODE_CLASS (MODE2) == MODE_INT            \
804 
          || GET_MODE_CLASS (MODE2) == MODE_FLOAT)      \
805 
      && (MODE1) != BImode && (MODE2) != BImode         \
806 
      && GET_MODE_SIZE (MODE1) <= UNITS_PER_WORD        \
807 
      && GET_MODE_SIZE (MODE2) <= UNITS_PER_WORD))
808 
 
809 
/* `PREFERRED_RELOAD_CLASS (X, CLASS)'
810 
   A C expression that places additional restrictions on the register
811 
   class to use when it is necessary to copy value X into a register
812 
   in class CLASS.  The value is a register class; perhaps CLASS, or
813 
   perhaps another, smaller class.  */
814 
#define PREFERRED_RELOAD_CLASS(X, CLASS)                \
815 
  (GET_CODE (X) == POST_INC                             \
816 
   || GET_CODE (X) == POST_DEC                          \
817 
   || GET_CODE (X) == PRE_DEC ? PREGS : (CLASS))
818 
 
819 
/* Function Calling Conventions. */
820 
 
821 
/* The type of the current function; normal functions are of type
822 
   SUBROUTINE.  */
823 
typedef enum {
824 
  SUBROUTINE, INTERRUPT_HANDLER, EXCPT_HANDLER, NMI_HANDLER
825 
} e_funkind;
826 
#define FUNCTION_RETURN_REGISTERS { REG_RETS, REG_RETI, REG_RETX, REG_RETN }
827 
 
828 
#define FUNCTION_ARG_REGISTERS { REG_R0, REG_R1, REG_R2, -1 }
829 
 
830 
/* Flags for the call/call_value rtl operations set up by function_arg */
831 
#define CALL_NORMAL             0x00000000      /* no special processing */
832 
#define CALL_LONG               0x00000001      /* always call indirect */
833 
#define CALL_SHORT              0x00000002      /* always call by symbol */
834 
 
835 
typedef struct {
836 
  int words;                    /* # words passed so far */
837 
  int nregs;                    /* # registers available for passing */
838 
  int *arg_regs;                /* array of register -1 terminated */
839 
  int call_cookie;              /* Do special things for this call */
840 
} CUMULATIVE_ARGS;
841 
 
842 
/* Define where to put the arguments to a function.
843 
   Value is zero to push the argument on the stack,
844 
   or a hard register in which to store the argument.
845 
 
846 
   MODE is the argument's machine mode.
847 
   TYPE is the data type of the argument (as a tree).
848 
    This is null for libcalls where that information may
849 
    not be available.
850 
   CUM is a variable of type CUMULATIVE_ARGS which gives info about
851 
    the preceding args and about the function being called.
852 
   NAMED is nonzero if this argument is a named parameter
853 
    (otherwise it is an extra parameter matching an ellipsis).  */
854 
 
855 
#define FUNCTION_ARG(CUM, MODE, TYPE, NAMED) \
856 
  (function_arg (&CUM, MODE, TYPE, NAMED))
857 
 
858 
#define FUNCTION_ARG_REGNO_P(REGNO) function_arg_regno_p (REGNO)
859 
 
860 
 
861 
/* Initialize a variable CUM of type CUMULATIVE_ARGS
862 
   for a call to a function whose data type is FNTYPE.
863 
   For a library call, FNTYPE is 0.  */
864 
#define INIT_CUMULATIVE_ARGS(CUM,FNTYPE,LIBNAME,INDIRECT, N_NAMED_ARGS) \
865 
  (init_cumulative_args (&CUM, FNTYPE, LIBNAME))
866 
 
867 
/* Update the data in CUM to advance over an argument
868 
   of mode MODE and data type TYPE.
869 
   (TYPE is null for libcalls where that information may not be available.)  */
870 
#define FUNCTION_ARG_ADVANCE(CUM, MODE, TYPE, NAMED)    \
871 
  (function_arg_advance (&CUM, MODE, TYPE, NAMED))
872 
 
873 
#define RETURN_POPS_ARGS(FDECL, FUNTYPE, STKSIZE) 0
874 
 
875 
/* Define how to find the value returned by a function.
876 
   VALTYPE is the data type of the value (as a tree).
877 
   If the precise function being called is known, FUNC is its FUNCTION_DECL;
878 
   otherwise, FUNC is 0.
879 
*/
880 
 
881 
#define VALUE_REGNO(MODE) (REG_R0)
882 
 
883 
#define FUNCTION_VALUE(VALTYPE, FUNC)           \
884 
  gen_rtx_REG (TYPE_MODE (VALTYPE),             \
885 
               VALUE_REGNO(TYPE_MODE(VALTYPE)))
886 
 
887 
/* Define how to find the value returned by a library function
888 
   assuming the value has mode MODE.  */
889 
 
890 
#define LIBCALL_VALUE(MODE)  gen_rtx_REG (MODE, VALUE_REGNO(MODE))
891 
 
892 
#define FUNCTION_VALUE_REGNO_P(N) ((N) == REG_R0)
893 
 
894 
#define DEFAULT_PCC_STRUCT_RETURN 0
895 
 
896 
/* Before the prologue, the return address is in the RETS register.  */
897 
#define INCOMING_RETURN_ADDR_RTX gen_rtx_REG (Pmode, REG_RETS)
898 
 
899 
#define RETURN_ADDR_RTX(COUNT, FRAME) bfin_return_addr_rtx (COUNT)
900 
 
901 
#define DWARF_FRAME_RETURN_COLUMN DWARF_FRAME_REGNUM (REG_RETS)
902 
 
903 
/* Call instructions don't modify the stack pointer on the Blackfin.  */
904 
#define INCOMING_FRAME_SP_OFFSET 0
905 
 
906 
/* Describe how we implement __builtin_eh_return.  */
907 
#define EH_RETURN_DATA_REGNO(N) ((N) < 2 ? (N) : INVALID_REGNUM)
908 
#define EH_RETURN_STACKADJ_RTX  gen_rtx_REG (Pmode, REG_P2)
909 
#define EH_RETURN_HANDLER_RTX \
910 
    gen_frame_mem (Pmode, plus_constant (frame_pointer_rtx, UNITS_PER_WORD))
911 
 
912 
/* Addressing Modes */
913 
 
914 
/* Nonzero if the constant value X is a legitimate general operand.
915 
   symbol_ref are not legitimate and will be put into constant pool.
916 
   See force_const_mem().
917 
   If -mno-pool, all constants are legitimate.
918 
 */
919 
#define LEGITIMATE_CONSTANT_P(X) bfin_legitimate_constant_p (X)
920 
 
921 
/*   A number, the maximum number of registers that can appear in a
922 
     valid memory address.  Note that it is up to you to specify a
923 
     value equal to the maximum number that `TARGET_LEGITIMATE_ADDRESS_P'
924 
     would ever accept. */
925 
#define MAX_REGS_PER_ADDRESS 1
926 
 
927 
#define LEGITIMATE_MODE_FOR_AUTOINC_P(MODE) \
928 
      (GET_MODE_SIZE (MODE) <= 4 || (MODE) == PDImode)
929 
 
930 
#define HAVE_POST_INCREMENT 1
931 
#define HAVE_POST_DECREMENT 1
932 
#define HAVE_PRE_DECREMENT  1
933 
 
934 
/* `LEGITIMATE_PIC_OPERAND_P (X)'
935 
     A C expression that is nonzero if X is a legitimate immediate
936 
     operand on the target machine when generating position independent
937 
     code.  You can assume that X satisfies `CONSTANT_P', so you need
938 
     not check this.  You can also assume FLAG_PIC is true, so you need
939 
     not check it either.  You need not define this macro if all
940 
     constants (including `SYMBOL_REF') can be immediate operands when
941 
     generating position independent code. */
942 
#define LEGITIMATE_PIC_OPERAND_P(X) ! SYMBOLIC_CONST (X)
943 
 
944 
#define SYMBOLIC_CONST(X)       \
945 
(GET_CODE (X) == SYMBOL_REF                                             \
946 
 || GET_CODE (X) == LABEL_REF                                           \
947 
 || (GET_CODE (X) == CONST && symbolic_reference_mentioned_p (X)))
948 
 
949 
#define NOTICE_UPDATE_CC(EXPR, INSN) 0
950 
 
951 
/* Value is 1 if truncating an integer of INPREC bits to OUTPREC bits
952 
   is done just by pretending it is already truncated.  */
953 
#define TRULY_NOOP_TRUNCATION(OUTPREC, INPREC) 1
954 
 
955 
/* Max number of bytes we can move from memory to memory
956 
   in one reasonably fast instruction.  */
957 
#define MOVE_MAX UNITS_PER_WORD
958 
 
959 
/* If a memory-to-memory move would take MOVE_RATIO or more simple
960 
   move-instruction pairs, we will do a movmem or libcall instead.  */
961 
 
962 
#define MOVE_RATIO(speed) 5
963 
 
964 
/* STORAGE LAYOUT: target machine storage layout
965 
   Define this macro as a C expression which is nonzero if accessing
966 
   less than a word of memory (i.e. a `char' or a `short') is no
967 
   faster than accessing a word of memory, i.e., if such access
968 
   require more than one instruction or if there is no difference in
969 
   cost between byte and (aligned) word loads.
970 
 
971 
   When this macro is not defined, the compiler will access a field by
972 
   finding the smallest containing object; when it is defined, a
973 
   fullword load will be used if alignment permits.  Unless bytes
974 
   accesses are faster than word accesses, using word accesses is
975 
   preferable since it may eliminate subsequent memory access if
976 
   subsequent accesses occur to other fields in the same word of the
977 
   structure, but to different bytes.  */
978 
#define SLOW_BYTE_ACCESS  0
979 
#define SLOW_SHORT_ACCESS 0
980 
 
981 
/* Define this if most significant bit is lowest numbered
982 
   in instructions that operate on numbered bit-fields. */
983 
#define BITS_BIG_ENDIAN  0
984 
 
985 
/* Define this if most significant byte of a word is the lowest numbered.
986 
   We can't access bytes but if we could we would in the Big Endian order. */
987 
#define BYTES_BIG_ENDIAN 0
988 
 
989 
/* Define this if most significant word of a multiword number is numbered. */
990 
#define WORDS_BIG_ENDIAN 0
991 
 
992 
/* number of bits in an addressable storage unit */
993 
#define BITS_PER_UNIT 8
994 
 
995 
/* Width in bits of a "word", which is the contents of a machine register.
996 
   Note that this is not necessarily the width of data type `int';
997 
   if using 16-bit ints on a 68000, this would still be 32.
998 
   But on a machine with 16-bit registers, this would be 16.  */
999 
#define BITS_PER_WORD 32
1000 
 
1001 
/* Width of a word, in units (bytes).  */
1002 
#define UNITS_PER_WORD 4
1003 
 
1004 
/* Width in bits of a pointer.
1005 
   See also the macro `Pmode1' defined below.  */
1006 
#define POINTER_SIZE 32
1007 
 
1008 
/* Allocation boundary (in *bits*) for storing pointers in memory.  */
1009 
#define POINTER_BOUNDARY 32
1010 
 
1011 
/* Allocation boundary (in *bits*) for storing arguments in argument list.  */
1012 
#define PARM_BOUNDARY 32
1013 
 
1014 
/* Boundary (in *bits*) on which stack pointer should be aligned.  */
1015 
#define STACK_BOUNDARY 32
1016 
 
1017 
/* Allocation boundary (in *bits*) for the code of a function.  */
1018 
#define FUNCTION_BOUNDARY 32
1019 
 
1020 
/* Alignment of field after `int : 0' in a structure.  */
1021 
#define EMPTY_FIELD_BOUNDARY BITS_PER_WORD
1022 
 
1023 
/* No data type wants to be aligned rounder than this.  */
1024 
#define BIGGEST_ALIGNMENT 32
1025 
 
1026 
/* Define this if move instructions will actually fail to work
1027 
   when given unaligned data.  */
1028 
#define STRICT_ALIGNMENT 1
1029 
 
1030 
/* (shell-command "rm c-decl.o stor-layout.o")
1031 
 *  never define PCC_BITFIELD_TYPE_MATTERS
1032 
 *  really cause some alignment problem
1033 
 */
1034 
 
1035 
#define UNITS_PER_FLOAT  ((FLOAT_TYPE_SIZE  + BITS_PER_UNIT - 1) / \
1036 
                           BITS_PER_UNIT)
1037 
 
1038 
#define UNITS_PER_DOUBLE ((DOUBLE_TYPE_SIZE + BITS_PER_UNIT - 1) / \
1039 
                           BITS_PER_UNIT)
1040 
 
1041 
 
1042 
/* what is the 'type' of size_t */
1043 
#define SIZE_TYPE "long unsigned int"
1044 
 
1045 
/* Define this as 1 if `char' should by default be signed; else as 0.  */
1046 
#define DEFAULT_SIGNED_CHAR 1
1047 
#define FLOAT_TYPE_SIZE BITS_PER_WORD
1048 
#define SHORT_TYPE_SIZE 16
1049 
#define CHAR_TYPE_SIZE  8
1050 
#define INT_TYPE_SIZE   32
1051 
#define LONG_TYPE_SIZE  32
1052 
#define LONG_LONG_TYPE_SIZE 64
1053 
 
1054 
/* Note: Fix this to depend on target switch. -- lev */
1055 
 
1056 
/* Note: Try to implement double and force long double. -- tonyko
1057 
 * #define __DOUBLES_ARE_FLOATS__
1058 
 * #define DOUBLE_TYPE_SIZE FLOAT_TYPE_SIZE
1059 
 * #define LONG_DOUBLE_TYPE_SIZE DOUBLE_TYPE_SIZE
1060 
 * #define DOUBLES_ARE_FLOATS 1
1061 
 */
1062 
 
1063 
#define DOUBLE_TYPE_SIZE        64
1064 
#define LONG_DOUBLE_TYPE_SIZE   64
1065 
 
1066 
/* `PROMOTE_MODE (M, UNSIGNEDP, TYPE)'
1067 
     A macro to update M and UNSIGNEDP when an object whose type is
1068 
     TYPE and which has the specified mode and signedness is to be
1069 
     stored in a register.  This macro is only called when TYPE is a
1070 
     scalar type.
1071 
 
1072 
     On most RISC machines, which only have operations that operate on
1073 
     a full register, define this macro to set M to `word_mode' if M is
1074 
     an integer mode narrower than `BITS_PER_WORD'.  In most cases,
1075 
     only integer modes should be widened because wider-precision
1076 
     floating-point operations are usually more expensive than their
1077 
     narrower counterparts.
1078 
 
1079 
     For most machines, the macro definition does not change UNSIGNEDP.
1080 
     However, some machines, have instructions that preferentially
1081 
     handle either signed or unsigned quantities of certain modes.  For
1082 
     example, on the DEC Alpha, 32-bit loads from memory and 32-bit add
1083 
     instructions sign-extend the result to 64 bits.  On such machines,
1084 
     set UNSIGNEDP according to which kind of extension is more
1085 
     efficient.
1086 
 
1087 
     Do not define this macro if it would never modify M.*/
1088 
 
1089 
#define BFIN_PROMOTE_MODE_P(MODE) \
1090 
    (!TARGET_DSP && GET_MODE_CLASS (MODE) == MODE_INT   \
1091 
      && GET_MODE_SIZE (MODE) < UNITS_PER_WORD)
1092 
 
1093 
#define PROMOTE_MODE(MODE, UNSIGNEDP, TYPE)     \
1094 
  if (BFIN_PROMOTE_MODE_P(MODE))                \
1095 
    {                                           \
1096 
      if (MODE == QImode)                       \
1097 
        UNSIGNEDP = 1;                          \
1098 
      else if (MODE == HImode)                  \
1099 
        UNSIGNEDP = 0;                          \
1100 
      (MODE) = SImode;                          \
1101 
    }
1102 
 
1103 
/* Describing Relative Costs of Operations */
1104 
 
1105 
/* Do not put function addr into constant pool */
1106 
#define NO_FUNCTION_CSE 1
1107 
 
1108 
/* A C expression for the cost of moving data from a register in class FROM to
1109 
   one in class TO.  The classes are expressed using the enumeration values
1110 
   such as `GENERAL_REGS'.  A value of 2 is the default; other values are
1111 
   interpreted relative to that.
1112 
 
1113 
   It is not required that the cost always equal 2 when FROM is the same as TO;
1114 
   on some machines it is expensive to move between registers if they are not
1115 
   general registers.  */
1116 
 
1117 
#define REGISTER_MOVE_COST(MODE, CLASS1, CLASS2) \
1118 
   bfin_register_move_cost ((MODE), (CLASS1), (CLASS2))
1119 
 
1120 
/* A C expression for the cost of moving data of mode M between a
1121 
   register and memory.  A value of 2 is the default; this cost is
1122 
   relative to those in `REGISTER_MOVE_COST'.
1123 
 
1124 
   If moving between registers and memory is more expensive than
1125 
   between two registers, you should define this macro to express the
1126 
   relative cost.  */
1127 
 
1128 
#define MEMORY_MOVE_COST(MODE, CLASS, IN)       \
1129 
  bfin_memory_move_cost ((MODE), (CLASS), (IN))
1130 
 
1131 
/* Specify the machine mode that this machine uses
1132 
   for the index in the tablejump instruction.  */
1133 
#define CASE_VECTOR_MODE SImode
1134 
 
1135 
#define JUMP_TABLES_IN_TEXT_SECTION flag_pic
1136 
 
1137 
/* Define if operations between registers always perform the operation
1138 
   on the full register even if a narrower mode is specified.
1139 
#define WORD_REGISTER_OPERATIONS
1140 
*/
1141 
 
1142 
/* Evaluates to true if A and B are mac flags that can be used
1143 
   together in a single multiply insn.  That is the case if they are
1144 
   both the same flag not involving M, or if one is a combination of
1145 
   the other with M.  */
1146 
#define MACFLAGS_MATCH_P(A, B) \
1147 
 ((A) == (B) \
1148 
  || ((A) == MACFLAG_NONE && (B) == MACFLAG_M) \
1149 
  || ((A) == MACFLAG_M && (B) == MACFLAG_NONE) \
1150 
  || ((A) == MACFLAG_IS && (B) == MACFLAG_IS_M) \
1151 
  || ((A) == MACFLAG_IS_M && (B) == MACFLAG_IS))
1152 
 
1153 
/* Switch into a generic section.  */
1154 
#define TARGET_ASM_NAMED_SECTION  default_elf_asm_named_section
1155 
 
1156 
#define PRINT_OPERAND(FILE, RTX, CODE)   print_operand (FILE, RTX, CODE)
1157 
#define PRINT_OPERAND_ADDRESS(FILE, RTX) print_address_operand (FILE, RTX)
1158 
 
1159 
typedef enum sections {
1160 
    CODE_DIR,
1161 
    DATA_DIR,
1162 
    LAST_SECT_NM
1163 
} SECT_ENUM_T;
1164 
 
1165 
typedef enum directives {
1166 
    LONG_CONST_DIR,
1167 
    SHORT_CONST_DIR,
1168 
    BYTE_CONST_DIR,
1169 
    SPACE_DIR,
1170 
    INIT_DIR,
1171 
    LAST_DIR_NM
1172 
} DIR_ENUM_T;
1173 
 
1174 
#define IS_ASM_LOGICAL_LINE_SEPARATOR(C, STR)   \
1175 
  ((C) == ';'                                   \
1176 
   || ((C) == '|' && (STR)[1] == '|'))
1177 
 
1178 
#define TEXT_SECTION_ASM_OP ".text;"
1179 
#define DATA_SECTION_ASM_OP ".data;"
1180 
 
1181 
#define ASM_APP_ON  ""
1182 
#define ASM_APP_OFF ""
1183 
 
1184 
#define ASM_GLOBALIZE_LABEL1(FILE, NAME) \
1185 
  do {  fputs (".global ", FILE);               \
1186 
        assemble_name (FILE, NAME);             \
1187 
        fputc (';',FILE);                       \
1188 
        fputc ('\n',FILE);                      \
1189 
      } while (0)
1190 
 
1191 
#define ASM_DECLARE_FUNCTION_NAME(FILE,NAME,DECL) \
1192 
  do {                                  \
1193 
    fputs (".type ", FILE);             \
1194 
    assemble_name (FILE, NAME);         \
1195 
    fputs (", STT_FUNC", FILE);         \
1196 
    fputc (';',FILE);                   \
1197 
    fputc ('\n',FILE);                  \
1198 
    ASM_OUTPUT_LABEL(FILE, NAME);       \
1199 
  } while (0)
1200 
 
1201 
#define ASM_OUTPUT_LABEL(FILE, NAME)    \
1202 
  do {  assemble_name (FILE, NAME);             \
1203 
        fputs (":\n",FILE);                     \
1204 
      } while (0)
1205 
 
1206 
#define ASM_OUTPUT_LABELREF(FILE,NAME)  \
1207 
    do {  fprintf (FILE, "_%s", NAME); \
1208 
        } while (0)
1209 
 
1210 
#define ASM_OUTPUT_ADDR_VEC_ELT(FILE, VALUE)            \
1211 
do { char __buf[256];                                   \
1212 
     fprintf (FILE, "\t.dd\t");                         \
1213 
     ASM_GENERATE_INTERNAL_LABEL (__buf, "L", VALUE);   \
1214 
     assemble_name (FILE, __buf);                       \
1215 
     fputc (';', FILE);                                 \
1216 
     fputc ('\n', FILE);                                \
1217 
   } while (0)
1218 
 
1219 
#define ASM_OUTPUT_ADDR_DIFF_ELT(FILE, BODY, VALUE, REL) \
1220 
    MY_ASM_OUTPUT_ADDR_DIFF_ELT(FILE, VALUE, REL)
1221 
 
1222 
#define MY_ASM_OUTPUT_ADDR_DIFF_ELT(FILE, VALUE, REL)           \
1223 
    do {                                                        \
1224 
        char __buf[256];                                        \
1225 
        fprintf (FILE, "\t.dd\t");                              \
1226 
        ASM_GENERATE_INTERNAL_LABEL (__buf, "L", VALUE);        \
1227 
        assemble_name (FILE, __buf);                            \
1228 
        fputs (" - ", FILE);                                    \
1229 
        ASM_GENERATE_INTERNAL_LABEL (__buf, "L", REL);          \
1230 
        assemble_name (FILE, __buf);                            \
1231 
        fputc (';', FILE);                                      \
1232 
        fputc ('\n', FILE);                                     \
1233 
    } while (0)
1234 
 
1235 
#define ASM_OUTPUT_ALIGN(FILE,LOG)                              \
1236 
    do {                                                        \
1237 
      if ((LOG) != 0)                                           \
1238 
        fprintf (FILE, "\t.align %d\n", 1 << (LOG));            \
1239 
    } while (0)
1240 
 
1241 
#define ASM_OUTPUT_SKIP(FILE,SIZE)              \
1242 
    do {                                        \
1243 
        asm_output_skip (FILE, SIZE);           \
1244 
    } while (0)
1245 
 
1246 
#define ASM_OUTPUT_LOCAL(FILE, NAME, SIZE, ROUNDED)     \
1247 
do {                                            \
1248 
    switch_to_section (data_section);                           \
1249 
    if ((SIZE) >= (unsigned int) 4 ) ASM_OUTPUT_ALIGN(FILE,2);  \
1250 
    ASM_OUTPUT_SIZE_DIRECTIVE (FILE, NAME, SIZE);               \
1251 
    ASM_OUTPUT_LABEL (FILE, NAME);                              \
1252 
    fprintf (FILE, "%s %ld;\n", ASM_SPACE,                      \
1253 
             (ROUNDED) > (unsigned int) 1 ? (ROUNDED) : 1);     \
1254 
} while (0)
1255 
 
1256 
#define ASM_OUTPUT_COMMON(FILE, NAME, SIZE, ROUNDED)    \
1257 
     do {                                               \
1258 
        ASM_GLOBALIZE_LABEL1(FILE,NAME);                \
1259 
        ASM_OUTPUT_LOCAL (FILE, NAME, SIZE, ROUNDED); } while(0)
1260 
 
1261 
#define ASM_COMMENT_START "//"
1262 
 
1263 
#define FUNCTION_PROFILER(FILE, LABELNO)        \
1264 
  do {                                          \
1265 
    fprintf (FILE, "\tCALL __mcount;\n");       \
1266 
  } while(0)
1267 
 
1268 
#undef NO_PROFILE_COUNTERS
1269 
#define NO_PROFILE_COUNTERS 1
1270 
 
1271 
#define ASM_OUTPUT_REG_PUSH(FILE, REGNO) fprintf (FILE, "[SP--] = %s;\n", reg_names[REGNO])
1272 
#define ASM_OUTPUT_REG_POP(FILE, REGNO)  fprintf (FILE, "%s = [SP++];\n", reg_names[REGNO])
1273 
 
1274 
extern struct rtx_def *bfin_cc_rtx, *bfin_rets_rtx;
1275 
 
1276 
/* This works for GAS and some other assemblers.  */
1277 
#define SET_ASM_OP              ".set "
1278 
 
1279 
/* DBX register number for a given compiler register number */
1280 
#define DBX_REGISTER_NUMBER(REGNO)  (REGNO)
1281 
 
1282 
#define SIZE_ASM_OP     "\t.size\t"
1283 
 
1284 
extern int splitting_for_sched, splitting_loops;
1285 
 
1286 
#define PRINT_OPERAND_PUNCT_VALID_P(CHAR) ((CHAR) == '!')
1287 
 
1288 
#ifndef TARGET_SUPPORTS_SYNC_CALLS
1289 
#define TARGET_SUPPORTS_SYNC_CALLS 0
1290 
#endif
1291 
 
1292 
#endif /*  _BFIN_CONFIG */

powered by: WebSVN 2.1.0

© copyright 1999-2024 OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.