1/* Definitions of target machine for GNU compiler, for CR16.
2   Copyright (C) 2012-2015 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()          \
49do                                         \
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  }                                        \
67while (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 (Pmode, 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
260enum 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
410struct 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/* Assume best case (branch predicted).  */
464#define BRANCH_COST(speed_p, predictable_p)       2
465
466#define SLOW_BYTE_ACCESS  1
467
468/* It is as good or better to call a constant function address than to
469   call an address kept in a register.  */
470#define NO_FUNCTION_CSE
471
472/* Dividing the output into sections.  */
473
474#define TEXT_SECTION_ASM_OP "\t.section\t.text"
475
476#define DATA_SECTION_ASM_OP "\t.section\t.data"
477
478#define BSS_SECTION_ASM_OP  "\t.section\t.bss"
479
480/* Position independent code (PIC).  */
481/* NEAR_PIC for -fpic option.  */
482
483#define NEAR_PIC 1
484
485/* FAR_PIC for -fPIC option.  */
486
487#define FAR_PIC  2
488
489#define PIC_OFFSET_TABLE_REGNUM  12
490
491#define LEGITIMATE_PIC_OPERAND_P(X) legitimate_pic_operand_p (X)
492
493/* Assembler format.  */
494
495/* Character to start a comment.  */
496#define ASM_COMMENT_START "#"
497
498#define GLOBAL_ASM_OP "\t.globl\t"
499
500#undef USER_LABEL_PREFIX
501#define USER_LABEL_PREFIX "_"
502
503#undef ASM_OUTPUT_LABELREF
504#define ASM_OUTPUT_LABELREF(STREAM, NAME) \
505  asm_fprintf (STREAM, "%U%s", (*targetm.strip_name_encoding) (NAME));
506
507#define ASM_OUTPUT_SYMBOL_REF(STREAM, SYMBOL)   \
508  do                                            \
509    {                                           \
510      const char *rn = XSTR (SYMBOL, 0);        \
511      assemble_name (STREAM, rn);               \
512      if (SYMBOL_REF_FUNCTION_P (SYMBOL))       \
513      {                                         \
514        fprintf ((STREAM), "@c");               \
515      }                                         \
516    }                                           \
517  while (0)
518
519#undef ASM_APP_ON
520#define ASM_APP_ON   "#APP\n"
521
522#undef ASM_APP_OFF
523#define ASM_APP_OFF  "#NO_APP\n"
524
525/* Switch into a generic section.  */
526#define TARGET_ASM_NAMED_SECTION	default_elf_asm_named_section
527
528#undef INIT_SECTION_ASM_OP
529#define INIT_SECTION_ASM_OP		"\t.section\t.init"
530
531#undef FINI_SECTION_ASM_OP
532#define FINI_SECTION_ASM_OP		"\t.section\t.fini"
533
534/* Instruction output.  */
535
536#define REGISTER_NAMES                                     \
537  {                                                        \
538    "r0",  "r1",  "r2",  "r3",  "r4",  "r5",  "r6",  "r7", \
539    "r8",  "r9",  "r10", "r11", "r12", "r13", "ra",  "sp"  \
540  }
541
542/* Output of dispatch tables.  */
543
544/* Revisit. No PC relative case as label expressions are not
545   properly supported in binutils else we could have done this:
546   #define CASE_VECTOR_PC_RELATIVE (optimize_size ? 1 : 0).  */
547#define CASE_VECTOR_PC_RELATIVE 0
548
549#define ASM_OUTPUT_ADDR_DIFF_ELT(FILE, BODY, VALUE, REL)    \
550  ((GET_MODE (BODY) == QImode)                              \
551   ? fprintf ((FILE), "\t.byte (.L%d-.L%d) >> 1\n",         \
552              VALUE, REL)                                   \
553   : fprintf ((FILE), "\t.word (.L%d-.L%d) >> 1\n",         \
554              VALUE, REL))
555
556#define ASM_OUTPUT_ADDR_VEC_ELT(STREAM, VALUE) \
557  asm_fprintf ((STREAM), "\t.long\t.L%d@c\n", (VALUE))
558
559/* Alignment in assembler file.  */
560
561#define ASM_OUTPUT_ALIGN(STREAM, POWER) \
562  asm_fprintf ((STREAM), "\t.align\t%d\n", 1 << (POWER))
563
564/* Miscellaneous parameters.  */
565
566#define CASE_VECTOR_MODE  Pmode
567
568#define MOVE_MAX 4
569
570#define TRULY_NOOP_TRUNCATION(OUTPREC, INPREC)  1
571
572#define STORE_FLAG_VALUE  1
573
574#define Pmode SImode
575
576#define FUNCTION_MODE QImode
577
578/* Define this boolean macro(s) to indicate whether or not your architecture
579   has (un)conditional branches that can span all of memory.  It is used in
580   conjunction with an optimization that partitions hot and cold basic blocks
581   into separate sections of the executable.
582   CR16 contains branch instructions that span whole address space.  */
583#define HAS_LONG_COND_BRANCH    1
584#define HAS_LONG_UNCOND_BRANCH  1
585
586#endif /* End of GCC_CR16_H.  */
587