1 /* Generate the machine mode enumeration and associated tables.
2    Copyright (C) 2003-2021 Free Software Foundation, Inc.
3 
4 This file is part of GCC.
5 
6 GCC is free software; you can redistribute it and/or modify it under
7 the terms of the GNU General Public License as published by the Free
8 Software Foundation; either version 3, or (at your option) any later
9 version.
10 
11 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
12 WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14 for more details.
15 
16 You should have received a copy of the GNU General Public License
17 along with GCC; see the file COPYING3.  If not see
18 <http://www.gnu.org/licenses/>.  */
19 
20 #include "bconfig.h"
21 #include "system.h"
22 #include "errors.h"
23 
24 /* enum mode_class is normally defined by machmode.h but we can't
25    include that header here.  */
26 #include "mode-classes.def"
27 
28 #define DEF_MODE_CLASS(M) M
29 enum mode_class { MODE_CLASSES, MAX_MODE_CLASS };
30 #undef DEF_MODE_CLASS
31 
32 /* Text names of mode classes, for output.  */
33 #define DEF_MODE_CLASS(M) #M
34 static const char *const mode_class_names[MAX_MODE_CLASS] =
35 {
36   MODE_CLASSES
37 };
38 #undef DEF_MODE_CLASS
39 #undef MODE_CLASSES
40 
41 #ifdef EXTRA_MODES_FILE
42 # define HAVE_EXTRA_MODES 1
43 #else
44 # define HAVE_EXTRA_MODES 0
45 # define EXTRA_MODES_FILE ""
46 #endif
47 
48 /* Data structure for building up what we know about a mode.
49    They're clustered by mode class.  */
50 struct mode_data
51 {
52   struct mode_data *next;	/* next this class - arbitrary order */
53 
54   const char *name;		/* printable mode name -- SI, not SImode */
55   enum mode_class cl;		/* this mode class */
56   unsigned int order;		/* top-level sorting order */
57   unsigned int precision;	/* size in bits, equiv to TYPE_PRECISION */
58   unsigned int bytesize;	/* storage size in addressable units */
59   unsigned int ncomponents;	/* number of subunits */
60   unsigned int alignment;	/* mode alignment */
61   const char *format;		/* floating point format - float modes only */
62 
63   struct mode_data *component;	/* mode of components */
64   struct mode_data *wider;	/* next wider mode */
65 
66   struct mode_data *contained;  /* Pointer to list of modes that have
67 				   this mode as a component.  */
68   struct mode_data *next_cont;  /* Next mode in that list.  */
69 
70   struct mode_data *complex;	/* complex type with mode as component.  */
71   const char *file;		/* file and line of definition, */
72   unsigned int line;		/* for error reporting */
73   unsigned int counter;		/* Rank ordering of modes */
74   unsigned int ibit;		/* the number of integral bits */
75   unsigned int fbit;		/* the number of fractional bits */
76   bool need_nunits_adj;		/* true if this mode needs dynamic nunits
77 				   adjustment */
78   bool need_bytesize_adj;	/* true if this mode needs dynamic size
79 				   adjustment */
80   unsigned int int_n;		/* If nonzero, then __int<INT_N> will be defined */
81 };
82 
83 static struct mode_data *modes[MAX_MODE_CLASS];
84 static unsigned int n_modes[MAX_MODE_CLASS];
85 static struct mode_data *void_mode;
86 
87 static const struct mode_data blank_mode = {
88   0, "<unknown>", MAX_MODE_CLASS,
89   0, -1U, -1U, -1U, -1U,
90   0, 0, 0, 0, 0, 0,
91   "<unknown>", 0, 0, 0, 0, false, false, 0
92 };
93 
94 static htab_t modes_by_name;
95 
96 /* Data structure for recording target-specified runtime adjustments
97    to a particular mode.  We support varying the byte size, the
98    alignment, and the floating point format.  */
99 struct mode_adjust
100 {
101   struct mode_adjust *next;
102   struct mode_data *mode;
103   const char *adjustment;
104 
105   const char *file;
106   unsigned int line;
107 };
108 
109 static struct mode_adjust *adj_nunits;
110 static struct mode_adjust *adj_bytesize;
111 static struct mode_adjust *adj_alignment;
112 static struct mode_adjust *adj_format;
113 static struct mode_adjust *adj_ibit;
114 static struct mode_adjust *adj_fbit;
115 
116 /* Mode class operations.  */
117 static enum mode_class
complex_class(enum mode_class c)118 complex_class (enum mode_class c)
119 {
120   switch (c)
121     {
122     case MODE_INT: return MODE_COMPLEX_INT;
123     case MODE_PARTIAL_INT: return MODE_COMPLEX_INT;
124     case MODE_FLOAT: return MODE_COMPLEX_FLOAT;
125     default:
126       error ("no complex class for class %s", mode_class_names[c]);
127       return MODE_RANDOM;
128     }
129 }
130 
131 static enum mode_class
vector_class(enum mode_class cl)132 vector_class (enum mode_class cl)
133 {
134   switch (cl)
135     {
136     case MODE_INT: return MODE_VECTOR_INT;
137     case MODE_FLOAT: return MODE_VECTOR_FLOAT;
138     case MODE_FRACT: return MODE_VECTOR_FRACT;
139     case MODE_UFRACT: return MODE_VECTOR_UFRACT;
140     case MODE_ACCUM: return MODE_VECTOR_ACCUM;
141     case MODE_UACCUM: return MODE_VECTOR_UACCUM;
142     default:
143       error ("no vector class for class %s", mode_class_names[cl]);
144       return MODE_RANDOM;
145     }
146 }
147 
148 /* Utility routines.  */
149 static inline struct mode_data *
find_mode(const char * name)150 find_mode (const char *name)
151 {
152   struct mode_data key;
153 
154   key.name = name;
155   return (struct mode_data *) htab_find (modes_by_name, &key);
156 }
157 
158 static struct mode_data *
new_mode(enum mode_class cl,const char * name,const char * file,unsigned int line)159 new_mode (enum mode_class cl, const char *name,
160 	  const char *file, unsigned int line)
161 {
162   struct mode_data *m;
163   static unsigned int count = 0;
164 
165   m = find_mode (name);
166   if (m)
167     {
168       error ("%s:%d: duplicate definition of mode \"%s\"",
169 	     trim_filename (file), line, name);
170       error ("%s:%d: previous definition here", m->file, m->line);
171       return m;
172     }
173 
174   m = XNEW (struct mode_data);
175   memcpy (m, &blank_mode, sizeof (struct mode_data));
176   m->cl = cl;
177   m->name = name;
178   if (file)
179     m->file = trim_filename (file);
180   m->line = line;
181   m->counter = count++;
182 
183   m->next = modes[cl];
184   modes[cl] = m;
185   n_modes[cl]++;
186 
187   *htab_find_slot (modes_by_name, m, INSERT) = m;
188 
189   return m;
190 }
191 
192 static hashval_t
hash_mode(const void * p)193 hash_mode (const void *p)
194 {
195   const struct mode_data *m = (const struct mode_data *)p;
196   return htab_hash_string (m->name);
197 }
198 
199 static int
eq_mode(const void * p,const void * q)200 eq_mode (const void *p, const void *q)
201 {
202   const struct mode_data *a = (const struct mode_data *)p;
203   const struct mode_data *b = (const struct mode_data *)q;
204 
205   return !strcmp (a->name, b->name);
206 }
207 
208 #define for_all_modes(C, M)			\
209   for (C = 0; C < MAX_MODE_CLASS; C++)		\
210     for (M = modes[C]; M; M = M->next)
211 
212 static void ATTRIBUTE_UNUSED
new_adjust(const char * name,struct mode_adjust ** category,const char * catname,const char * adjustment,enum mode_class required_class_from,enum mode_class required_class_to,const char * file,unsigned int line)213 new_adjust (const char *name,
214 	    struct mode_adjust **category, const char *catname,
215 	    const char *adjustment,
216 	    enum mode_class required_class_from,
217 	    enum mode_class required_class_to,
218 	    const char *file, unsigned int line)
219 {
220   struct mode_data *mode = find_mode (name);
221   struct mode_adjust *a;
222 
223   file = trim_filename (file);
224 
225   if (!mode)
226     {
227       error ("%s:%d: no mode \"%s\"", file, line, name);
228       return;
229     }
230 
231   if (required_class_from != MODE_RANDOM
232       && (mode->cl < required_class_from || mode->cl > required_class_to))
233     {
234       error ("%s:%d: mode \"%s\" is not among class {%s, %s}",
235 	     file, line, name, mode_class_names[required_class_from] + 5,
236 	     mode_class_names[required_class_to] + 5);
237       return;
238     }
239 
240   for (a = *category; a; a = a->next)
241     if (a->mode == mode)
242       {
243 	error ("%s:%d: mode \"%s\" already has a %s adjustment",
244 	       file, line, name, catname);
245 	error ("%s:%d: previous adjustment here", a->file, a->line);
246 	return;
247       }
248 
249   a = XNEW (struct mode_adjust);
250   a->mode = mode;
251   a->adjustment = adjustment;
252   a->file = file;
253   a->line = line;
254 
255   a->next = *category;
256   *category = a;
257 }
258 
259 /* Diagnose failure to meet expectations in a partially filled out
260    mode structure.  */
261 enum requirement { SET, UNSET, OPTIONAL };
262 
263 #define validate_field_(mname, fname, req, val, unset, file, line) do {	\
264   switch (req)								\
265     {									\
266     case SET:								\
267       if (val == unset)							\
268 	error ("%s:%d: (%s) field %s must be set",			\
269 	       file, line, mname, fname);				\
270       break;								\
271     case UNSET:								\
272       if (val != unset)							\
273 	error ("%s:%d: (%s) field %s must not be set",			\
274 	       file, line, mname, fname);				\
275     case OPTIONAL:							\
276       break;								\
277     }									\
278 } while (0)
279 
280 #define validate_field(M, F) \
281   validate_field_(M->name, #F, r_##F, M->F, blank_mode.F, M->file, M->line)
282 
283 static void
validate_mode(struct mode_data * m,enum requirement r_precision,enum requirement r_bytesize,enum requirement r_component,enum requirement r_ncomponents,enum requirement r_format)284 validate_mode (struct mode_data *m,
285 	       enum requirement r_precision,
286 	       enum requirement r_bytesize,
287 	       enum requirement r_component,
288 	       enum requirement r_ncomponents,
289 	       enum requirement r_format)
290 {
291   validate_field (m, precision);
292   validate_field (m, bytesize);
293   validate_field (m, component);
294   validate_field (m, ncomponents);
295   validate_field (m, format);
296 }
297 #undef validate_field
298 #undef validate_field_
299 
300 /* Given a partially-filled-out mode structure, figure out what we can
301    and fill the rest of it in; die if it isn't enough.  */
302 static void
complete_mode(struct mode_data * m)303 complete_mode (struct mode_data *m)
304 {
305   unsigned int alignment;
306 
307   if (!m->name)
308     {
309       error ("%s:%d: mode with no name", m->file, m->line);
310       return;
311     }
312   if (m->cl == MAX_MODE_CLASS)
313     {
314       error ("%s:%d: %smode has no mode class", m->file, m->line, m->name);
315       return;
316     }
317 
318   switch (m->cl)
319     {
320     case MODE_RANDOM:
321       /* Nothing more need be said.  */
322       if (!strcmp (m->name, "VOID"))
323 	void_mode = m;
324 
325       validate_mode (m, UNSET, UNSET, UNSET, UNSET, UNSET);
326 
327       m->precision = 0;
328       m->bytesize = 0;
329       m->ncomponents = 0;
330       m->component = 0;
331       break;
332 
333     case MODE_CC:
334       /* Again, nothing more need be said.  For historical reasons,
335 	 the size of a CC mode is four units.  */
336       validate_mode (m, UNSET, UNSET, UNSET, UNSET, UNSET);
337 
338       m->bytesize = 4;
339       m->ncomponents = 1;
340       m->component = 0;
341       break;
342 
343     case MODE_INT:
344     case MODE_FLOAT:
345     case MODE_DECIMAL_FLOAT:
346     case MODE_FRACT:
347     case MODE_UFRACT:
348     case MODE_ACCUM:
349     case MODE_UACCUM:
350       /* A scalar mode must have a byte size, may have a bit size,
351 	 and must not have components.   A float mode must have a
352          format.  */
353       validate_mode (m, OPTIONAL, SET, UNSET, UNSET,
354 		     (m->cl == MODE_FLOAT || m->cl == MODE_DECIMAL_FLOAT)
355 		     ? SET : UNSET);
356 
357       m->ncomponents = 1;
358       m->component = 0;
359       break;
360 
361     case MODE_OPAQUE:
362       /* Opaque modes have size and precision.  */
363       validate_mode (m, OPTIONAL, SET, UNSET, UNSET, UNSET);
364 
365       m->ncomponents = 1;
366       m->component = 0;
367       break;
368 
369     case MODE_PARTIAL_INT:
370       /* A partial integer mode uses ->component to say what the
371 	 corresponding full-size integer mode is, and may also
372 	 specify a bit size.  */
373       validate_mode (m, OPTIONAL, UNSET, SET, UNSET, UNSET);
374 
375       m->bytesize = m->component->bytesize;
376 
377       m->ncomponents = 1;
378       break;
379 
380     case MODE_COMPLEX_INT:
381     case MODE_COMPLEX_FLOAT:
382       /* Complex modes should have a component indicated, but no more.  */
383       validate_mode (m, UNSET, UNSET, SET, UNSET, UNSET);
384       m->ncomponents = 2;
385       if (m->component->precision != (unsigned int)-1)
386 	m->precision = 2 * m->component->precision;
387       m->bytesize = 2 * m->component->bytesize;
388       break;
389 
390     case MODE_VECTOR_BOOL:
391       validate_mode (m, UNSET, SET, SET, SET, UNSET);
392       break;
393 
394     case MODE_VECTOR_INT:
395     case MODE_VECTOR_FLOAT:
396     case MODE_VECTOR_FRACT:
397     case MODE_VECTOR_UFRACT:
398     case MODE_VECTOR_ACCUM:
399     case MODE_VECTOR_UACCUM:
400       /* Vector modes should have a component and a number of components.  */
401       validate_mode (m, UNSET, UNSET, SET, SET, UNSET);
402       if (m->component->precision != (unsigned int)-1)
403 	m->precision = m->ncomponents * m->component->precision;
404       m->bytesize = m->ncomponents * m->component->bytesize;
405       break;
406 
407     default:
408       gcc_unreachable ();
409     }
410 
411   /* If not already specified, the mode alignment defaults to the largest
412      power of two that divides the size of the object.  Complex types are
413      not more aligned than their contents.  */
414   if (m->cl == MODE_COMPLEX_INT || m->cl == MODE_COMPLEX_FLOAT)
415     alignment = m->component->bytesize;
416   else
417     alignment = m->bytesize;
418 
419   m->alignment = alignment & (~alignment + 1);
420 
421   /* If this mode has components, make the component mode point back
422      to this mode, for the sake of adjustments.  */
423   if (m->component)
424     {
425       m->next_cont = m->component->contained;
426       m->component->contained = m;
427     }
428 }
429 
430 static void
complete_all_modes(void)431 complete_all_modes (void)
432 {
433   struct mode_data *m;
434   int cl;
435 
436   for_all_modes (cl, m)
437     complete_mode (m);
438 }
439 
440 /* For each mode in class CLASS, construct a corresponding complex mode.  */
441 #define COMPLEX_MODES(C) make_complex_modes (MODE_##C, __FILE__, __LINE__)
442 static void
make_complex_modes(enum mode_class cl,const char * file,unsigned int line)443 make_complex_modes (enum mode_class cl,
444 		    const char *file, unsigned int line)
445 {
446   struct mode_data *m;
447   struct mode_data *c;
448   enum mode_class cclass = complex_class (cl);
449 
450   if (cclass == MODE_RANDOM)
451     return;
452 
453   for (m = modes[cl]; m; m = m->next)
454     {
455       char *p, *buf;
456       size_t m_len;
457 
458       /* Skip BImode.  FIXME: BImode probably shouldn't be MODE_INT.  */
459       if (m->precision == 1)
460 	continue;
461 
462       m_len = strlen (m->name);
463       /* The leading "1 +" is in case we prepend a "C" below.  */
464       buf = (char *) xmalloc (1 + m_len + 1);
465 
466       /* Float complex modes are named SCmode, etc.
467 	 Int complex modes are named CSImode, etc.
468          This inconsistency should be eliminated.  */
469       p = 0;
470       if (cl == MODE_FLOAT)
471 	{
472 	  memcpy (buf, m->name, m_len + 1);
473 	  p = strchr (buf, 'F');
474 	  if (p == 0 && strchr (buf, 'D') == 0)
475 	    {
476 	      error ("%s:%d: float mode \"%s\" has no 'F' or 'D'",
477 		     m->file, m->line, m->name);
478 	      free (buf);
479 	      continue;
480 	    }
481 	}
482       if (p != 0)
483 	*p = 'C';
484       else
485 	{
486 	  buf[0] = 'C';
487 	  memcpy (buf + 1, m->name, m_len + 1);
488 	}
489 
490       c = new_mode (cclass, buf, file, line);
491       c->component = m;
492       m->complex = c;
493     }
494 }
495 
496 /* For all modes in class CL, construct vector modes of width WIDTH,
497    having as many components as necessary.  ORDER is the sorting order
498    of the mode, with smaller numbers indicating a higher priority.  */
499 #define VECTOR_MODES_WITH_PREFIX(PREFIX, C, W, ORDER) \
500   make_vector_modes (MODE_##C, #PREFIX, W, ORDER, __FILE__, __LINE__)
501 #define VECTOR_MODES(C, W) VECTOR_MODES_WITH_PREFIX (V, C, W, 0)
502 static void ATTRIBUTE_UNUSED
make_vector_modes(enum mode_class cl,const char * prefix,unsigned int width,unsigned int order,const char * file,unsigned int line)503 make_vector_modes (enum mode_class cl, const char *prefix, unsigned int width,
504 		   unsigned int order, const char *file, unsigned int line)
505 {
506   struct mode_data *m;
507   struct mode_data *v;
508   /* Big enough for a 32-bit UINT_MAX plus the text.  */
509   char buf[12];
510   unsigned int ncomponents;
511   enum mode_class vclass = vector_class (cl);
512 
513   if (vclass == MODE_RANDOM)
514     return;
515 
516   for (m = modes[cl]; m; m = m->next)
517     {
518       /* Do not construct vector modes with only one element, or
519 	 vector modes where the element size doesn't divide the full
520 	 size evenly.  */
521       ncomponents = width / m->bytesize;
522       if (ncomponents < 2)
523 	continue;
524       if (width % m->bytesize)
525 	continue;
526 
527       /* Skip QFmode and BImode.  FIXME: this special case should
528 	 not be necessary.  */
529       if (cl == MODE_FLOAT && m->bytesize == 1)
530 	continue;
531       if (cl == MODE_INT && m->precision == 1)
532 	continue;
533 
534       if ((size_t) snprintf (buf, sizeof buf, "%s%u%s", prefix,
535 			     ncomponents, m->name) >= sizeof buf)
536 	{
537 	  error ("%s:%d: mode name \"%s\" is too long",
538 		 m->file, m->line, m->name);
539 	  continue;
540 	}
541 
542       v = new_mode (vclass, xstrdup (buf), file, line);
543       v->order = order;
544       v->component = m;
545       v->ncomponents = ncomponents;
546     }
547 }
548 
549 /* Create a vector of booleans called NAME with COUNT elements and
550    BYTESIZE bytes in total.  */
551 #define VECTOR_BOOL_MODE(NAME, COUNT, BYTESIZE) \
552   make_vector_bool_mode (#NAME, COUNT, BYTESIZE, __FILE__, __LINE__)
553 static void ATTRIBUTE_UNUSED
make_vector_bool_mode(const char * name,unsigned int count,unsigned int bytesize,const char * file,unsigned int line)554 make_vector_bool_mode (const char *name, unsigned int count,
555 		       unsigned int bytesize, const char *file,
556 		       unsigned int line)
557 {
558   struct mode_data *m = find_mode ("BI");
559   if (!m)
560     {
561       error ("%s:%d: no mode \"BI\"", file, line);
562       return;
563     }
564 
565   struct mode_data *v = new_mode (MODE_VECTOR_BOOL, name, file, line);
566   v->component = m;
567   v->ncomponents = count;
568   v->bytesize = bytesize;
569 }
570 
571 /* Input.  */
572 
573 #define _SPECIAL_MODE(C, N) \
574   make_special_mode (MODE_##C, #N, __FILE__, __LINE__)
575 #define RANDOM_MODE(N) _SPECIAL_MODE (RANDOM, N)
576 #define CC_MODE(N) _SPECIAL_MODE (CC, N)
577 
578 static void
make_special_mode(enum mode_class cl,const char * name,const char * file,unsigned int line)579 make_special_mode (enum mode_class cl, const char *name,
580 		   const char *file, unsigned int line)
581 {
582   new_mode (cl, name, file, line);
583 }
584 
585 #define INT_MODE(N, Y) FRACTIONAL_INT_MODE (N, -1U, Y)
586 #define FRACTIONAL_INT_MODE(N, B, Y) \
587   make_int_mode (#N, B, Y, __FILE__, __LINE__)
588 
589 static void
make_int_mode(const char * name,unsigned int precision,unsigned int bytesize,const char * file,unsigned int line)590 make_int_mode (const char *name,
591 	       unsigned int precision, unsigned int bytesize,
592 	       const char *file, unsigned int line)
593 {
594   struct mode_data *m = new_mode (MODE_INT, name, file, line);
595   m->bytesize = bytesize;
596   m->precision = precision;
597 }
598 
599 #define OPAQUE_MODE(N, B)			\
600   make_opaque_mode (#N, -1U, B, __FILE__, __LINE__)
601 
602 static void ATTRIBUTE_UNUSED
make_opaque_mode(const char * name,unsigned int precision,unsigned int bytesize,const char * file,unsigned int line)603 make_opaque_mode (const char *name,
604 		  unsigned int precision,
605 		  unsigned int bytesize,
606 		  const char *file, unsigned int line)
607 {
608   struct mode_data *m = new_mode (MODE_OPAQUE, name, file, line);
609   m->bytesize = bytesize;
610   m->precision = precision;
611 }
612 
613 #define FRACT_MODE(N, Y, F) \
614 	make_fixed_point_mode (MODE_FRACT, #N, Y, 0, F, __FILE__, __LINE__)
615 
616 #define UFRACT_MODE(N, Y, F) \
617 	make_fixed_point_mode (MODE_UFRACT, #N, Y, 0, F, __FILE__, __LINE__)
618 
619 #define ACCUM_MODE(N, Y, I, F) \
620 	make_fixed_point_mode (MODE_ACCUM, #N, Y, I, F, __FILE__, __LINE__)
621 
622 #define UACCUM_MODE(N, Y, I, F) \
623 	make_fixed_point_mode (MODE_UACCUM, #N, Y, I, F, __FILE__, __LINE__)
624 
625 /* Create a fixed-point mode by setting CL, NAME, BYTESIZE, IBIT, FBIT,
626    FILE, and LINE.  */
627 
628 static void
make_fixed_point_mode(enum mode_class cl,const char * name,unsigned int bytesize,unsigned int ibit,unsigned int fbit,const char * file,unsigned int line)629 make_fixed_point_mode (enum mode_class cl,
630 		       const char *name,
631 		       unsigned int bytesize,
632 		       unsigned int ibit,
633 		       unsigned int fbit,
634 		       const char *file, unsigned int line)
635 {
636   struct mode_data *m = new_mode (cl, name, file, line);
637   m->bytesize = bytesize;
638   m->ibit = ibit;
639   m->fbit = fbit;
640 }
641 
642 #define FLOAT_MODE(N, Y, F)             FRACTIONAL_FLOAT_MODE (N, -1U, Y, F)
643 #define FRACTIONAL_FLOAT_MODE(N, B, Y, F) \
644   make_float_mode (#N, B, Y, #F, __FILE__, __LINE__)
645 
646 static void
make_float_mode(const char * name,unsigned int precision,unsigned int bytesize,const char * format,const char * file,unsigned int line)647 make_float_mode (const char *name,
648 		 unsigned int precision, unsigned int bytesize,
649 		 const char *format,
650 		 const char *file, unsigned int line)
651 {
652   struct mode_data *m = new_mode (MODE_FLOAT, name, file, line);
653   m->bytesize = bytesize;
654   m->precision = precision;
655   m->format = format;
656 }
657 
658 #define DECIMAL_FLOAT_MODE(N, Y, F)	\
659 	FRACTIONAL_DECIMAL_FLOAT_MODE (N, -1U, Y, F)
660 #define FRACTIONAL_DECIMAL_FLOAT_MODE(N, B, Y, F)	\
661   make_decimal_float_mode (#N, B, Y, #F, __FILE__, __LINE__)
662 
663 static void
make_decimal_float_mode(const char * name,unsigned int precision,unsigned int bytesize,const char * format,const char * file,unsigned int line)664 make_decimal_float_mode (const char *name,
665 			 unsigned int precision, unsigned int bytesize,
666 			 const char *format,
667 			 const char *file, unsigned int line)
668 {
669   struct mode_data *m = new_mode (MODE_DECIMAL_FLOAT, name, file, line);
670   m->bytesize = bytesize;
671   m->precision = precision;
672   m->format = format;
673 }
674 
675 #define RESET_FLOAT_FORMAT(N, F) \
676   reset_float_format (#N, #F, __FILE__, __LINE__)
677 static void ATTRIBUTE_UNUSED
reset_float_format(const char * name,const char * format,const char * file,unsigned int line)678 reset_float_format (const char *name, const char *format,
679 		    const char *file, unsigned int line)
680 {
681   struct mode_data *m = find_mode (name);
682   if (!m)
683     {
684       error ("%s:%d: no mode \"%s\"", file, line, name);
685       return;
686     }
687   if (m->cl != MODE_FLOAT && m->cl != MODE_DECIMAL_FLOAT)
688     {
689       error ("%s:%d: mode \"%s\" is not a FLOAT class", file, line, name);
690       return;
691     }
692   m->format = format;
693 }
694 
695 /* __intN support.  */
696 #define INT_N(M,PREC)				\
697   make_int_n (#M, PREC, __FILE__, __LINE__)
698 static void ATTRIBUTE_UNUSED
make_int_n(const char * m,int bitsize,const char * file,unsigned int line)699 make_int_n (const char *m, int bitsize,
700             const char *file, unsigned int line)
701 {
702   struct mode_data *component = find_mode (m);
703   if (!component)
704     {
705       error ("%s:%d: no mode \"%s\"", file, line, m);
706       return;
707     }
708   if (component->cl != MODE_INT
709       && component->cl != MODE_PARTIAL_INT)
710     {
711       error ("%s:%d: mode \"%s\" is not class INT or PARTIAL_INT", file, line, m);
712       return;
713     }
714   if (component->int_n != 0)
715     {
716       error ("%s:%d: mode \"%s\" already has an intN", file, line, m);
717       return;
718     }
719 
720   component->int_n = bitsize;
721 }
722 
723 /* Partial integer modes are specified by relation to a full integer
724    mode.  */
725 #define PARTIAL_INT_MODE(M,PREC,NAME)				\
726   make_partial_integer_mode (#M, #NAME, PREC, __FILE__, __LINE__)
727 static void ATTRIBUTE_UNUSED
make_partial_integer_mode(const char * base,const char * name,unsigned int precision,const char * file,unsigned int line)728 make_partial_integer_mode (const char *base, const char *name,
729 			   unsigned int precision,
730 			   const char *file, unsigned int line)
731 {
732   struct mode_data *m;
733   struct mode_data *component = find_mode (base);
734   if (!component)
735     {
736       error ("%s:%d: no mode \"%s\"", file, line, name);
737       return;
738     }
739   if (component->cl != MODE_INT)
740     {
741       error ("%s:%d: mode \"%s\" is not class INT", file, line, name);
742       return;
743     }
744 
745   m = new_mode (MODE_PARTIAL_INT, name, file, line);
746   m->precision = precision;
747   m->component = component;
748 }
749 
750 /* A single vector mode can be specified by naming its component
751    mode and the number of components.  */
752 #define VECTOR_MODE(C, M, N) \
753   make_vector_mode (MODE_##C, #M, N, __FILE__, __LINE__);
754 static void ATTRIBUTE_UNUSED
make_vector_mode(enum mode_class bclass,const char * base,unsigned int ncomponents,const char * file,unsigned int line)755 make_vector_mode (enum mode_class bclass,
756 		  const char *base,
757 		  unsigned int ncomponents,
758 		  const char *file, unsigned int line)
759 {
760   struct mode_data *v;
761   enum mode_class vclass = vector_class (bclass);
762   struct mode_data *component = find_mode (base);
763   char namebuf[16];
764 
765   if (vclass == MODE_RANDOM)
766     return;
767   if (component == 0)
768     {
769       error ("%s:%d: no mode \"%s\"", file, line, base);
770       return;
771     }
772   if (component->cl != bclass
773       && (component->cl != MODE_PARTIAL_INT
774 	  || bclass != MODE_INT))
775     {
776       error ("%s:%d: mode \"%s\" is not class %s",
777 	     file, line, base, mode_class_names[bclass] + 5);
778       return;
779     }
780 
781   if ((size_t)snprintf (namebuf, sizeof namebuf, "V%u%s",
782 			ncomponents, base) >= sizeof namebuf)
783     {
784       error ("%s:%d: mode name \"%s\" is too long",
785 	     file, line, base);
786       return;
787     }
788 
789   v = new_mode (vclass, xstrdup (namebuf), file, line);
790   v->ncomponents = ncomponents;
791   v->component = component;
792 }
793 
794 /* Adjustability.  */
795 #define _ADD_ADJUST(A, M, X, C1, C2) \
796   new_adjust (#M, &adj_##A, #A, #X, MODE_##C1, MODE_##C2, __FILE__, __LINE__)
797 
798 #define ADJUST_NUNITS(M, X)    _ADD_ADJUST (nunits, M, X, RANDOM, RANDOM)
799 #define ADJUST_BYTESIZE(M, X)  _ADD_ADJUST (bytesize, M, X, RANDOM, RANDOM)
800 #define ADJUST_ALIGNMENT(M, X) _ADD_ADJUST (alignment, M, X, RANDOM, RANDOM)
801 #define ADJUST_FLOAT_FORMAT(M, X)    _ADD_ADJUST (format, M, X, FLOAT, FLOAT)
802 #define ADJUST_IBIT(M, X)  _ADD_ADJUST (ibit, M, X, ACCUM, UACCUM)
803 #define ADJUST_FBIT(M, X)  _ADD_ADJUST (fbit, M, X, FRACT, UACCUM)
804 
805 static int bits_per_unit;
806 static int max_bitsize_mode_any_int;
807 static int max_bitsize_mode_any_mode;
808 
809 static void
create_modes(void)810 create_modes (void)
811 {
812 #include "machmode.def"
813 
814   /* So put the default value unless the target needs a non standard
815      value. */
816 #ifdef BITS_PER_UNIT
817   bits_per_unit = BITS_PER_UNIT;
818 #else
819   bits_per_unit = 8;
820 #endif
821 
822 #ifdef MAX_BITSIZE_MODE_ANY_INT
823   max_bitsize_mode_any_int = MAX_BITSIZE_MODE_ANY_INT;
824 #else
825   max_bitsize_mode_any_int = 0;
826 #endif
827 
828 #ifdef MAX_BITSIZE_MODE_ANY_MODE
829   max_bitsize_mode_any_mode = MAX_BITSIZE_MODE_ANY_MODE;
830 #else
831   max_bitsize_mode_any_mode = 0;
832 #endif
833 }
834 
835 #ifndef NUM_POLY_INT_COEFFS
836 #define NUM_POLY_INT_COEFFS 1
837 #endif
838 
839 /* Processing.  */
840 
841 /* Sort a list of modes into the order needed for the WIDER field:
842    major sort by precision, minor sort by component precision.
843 
844    For instance:
845      QI < HI < SI < DI < TI
846      V4QI < V2HI < V8QI < V4HI < V2SI.
847 
848    If the precision is not set, sort by the bytesize.  A mode with
849    precision set gets sorted before a mode without precision set, if
850    they have the same bytesize; this is the right thing because
851    the precision must always be smaller than the bytesize * BITS_PER_UNIT.
852    We don't have to do anything special to get this done -- an unset
853    precision shows up as (unsigned int)-1, i.e. UINT_MAX.  */
854 static int
cmp_modes(const void * a,const void * b)855 cmp_modes (const void *a, const void *b)
856 {
857   const struct mode_data *const m = *(const struct mode_data *const*)a;
858   const struct mode_data *const n = *(const struct mode_data *const*)b;
859 
860   if (m->order > n->order)
861     return 1;
862   else if (m->order < n->order)
863     return -1;
864 
865   if (m->bytesize > n->bytesize)
866     return 1;
867   else if (m->bytesize < n->bytesize)
868     return -1;
869 
870   if (m->precision > n->precision)
871     return 1;
872   else if (m->precision < n->precision)
873     return -1;
874 
875   if (!m->component && !n->component)
876     {
877       if (m->counter < n->counter)
878 	return -1;
879       else
880 	return 1;
881     }
882 
883   if (m->component->bytesize > n->component->bytesize)
884     return 1;
885   else if (m->component->bytesize < n->component->bytesize)
886     return -1;
887 
888   if (m->component->precision > n->component->precision)
889     return 1;
890   else if (m->component->precision < n->component->precision)
891     return -1;
892 
893   if (m->counter < n->counter)
894     return -1;
895   else
896     return 1;
897 }
898 
899 static void
calc_wider_mode(void)900 calc_wider_mode (void)
901 {
902   int c;
903   struct mode_data *m;
904   struct mode_data **sortbuf;
905   unsigned int max_n_modes = 0;
906   unsigned int i, j;
907 
908   for (c = 0; c < MAX_MODE_CLASS; c++)
909     max_n_modes = MAX (max_n_modes, n_modes[c]);
910 
911   /* Allocate max_n_modes + 1 entries to leave room for the extra null
912      pointer assigned after the qsort call below.  */
913   sortbuf = XALLOCAVEC (struct mode_data *, max_n_modes + 1);
914 
915   for (c = 0; c < MAX_MODE_CLASS; c++)
916     {
917       /* "wider" is not meaningful for MODE_RANDOM and MODE_CC.
918 	 However, we want these in textual order, and we have
919 	 precisely the reverse.  */
920       if (c == MODE_RANDOM || c == MODE_CC)
921 	{
922 	  struct mode_data *prev, *next;
923 
924 	  for (prev = 0, m = modes[c]; m; m = next)
925 	    {
926 	      m->wider = void_mode;
927 
928 	      /* this is nreverse */
929 	      next = m->next;
930 	      m->next = prev;
931 	      prev = m;
932 	    }
933 	  modes[c] = prev;
934 	}
935       else
936 	{
937 	  if (!modes[c])
938 	    continue;
939 
940 	  for (i = 0, m = modes[c]; m; i++, m = m->next)
941 	    sortbuf[i] = m;
942 
943 	  (qsort) (sortbuf, i, sizeof (struct mode_data *), cmp_modes);
944 
945 	  sortbuf[i] = 0;
946 	  for (j = 0; j < i; j++)
947 	    {
948 	      sortbuf[j]->next = sortbuf[j + 1];
949 	      if (c == MODE_PARTIAL_INT)
950 		sortbuf[j]->wider = sortbuf[j]->component;
951 	      else
952 		sortbuf[j]->wider = sortbuf[j]->next;
953 	    }
954 
955 	  modes[c] = sortbuf[0];
956 	}
957     }
958 }
959 
960 /* Text to add to the constant part of a poly_int_pod initializer in
961    order to fill out te whole structure.  */
962 #if NUM_POLY_INT_COEFFS == 1
963 #define ZERO_COEFFS ""
964 #elif NUM_POLY_INT_COEFFS == 2
965 #define ZERO_COEFFS ", 0"
966 #else
967 #error "Unknown value of NUM_POLY_INT_COEFFS"
968 #endif
969 
970 /* Output routines.  */
971 
972 #define tagged_printf(FMT, ARG, TAG) do {		\
973   int count_ = printf ("  " FMT ",", ARG);		\
974   printf ("%*s/* %s */\n", 27 - count_, "", TAG);	\
975 } while (0)
976 
977 #define print_decl(TYPE, NAME, ASIZE) \
978   puts ("\nconst " TYPE " " NAME "[" ASIZE "] =\n{");
979 
980 #define print_maybe_const_decl(TYPE, NAME, ASIZE, NEEDS_ADJ)	\
981   printf ("\n" TYPE " " NAME "[" ASIZE "] = \n{\n",		\
982 	  NEEDS_ADJ ? "" : "const ")
983 
984 #define print_closer() puts ("};")
985 
986 /* Compute the max bitsize of some of the classes of integers.  It may
987    be that there are needs for the other integer classes, and this
988    code is easy to extend.  */
989 static void
emit_max_int(void)990 emit_max_int (void)
991 {
992   unsigned int max, mmax;
993   struct mode_data *i;
994   int j;
995 
996   puts ("");
997 
998   printf ("#define BITS_PER_UNIT (%d)\n", bits_per_unit);
999 
1000   if (max_bitsize_mode_any_int == 0)
1001     {
1002       for (max = 1, i = modes[MODE_INT]; i; i = i->next)
1003 	if (max < i->bytesize)
1004 	  max = i->bytesize;
1005       mmax = max;
1006       for (max = 1, i = modes[MODE_PARTIAL_INT]; i; i = i->next)
1007 	if (max < i->bytesize)
1008 	  max = i->bytesize;
1009       if (max > mmax)
1010 	mmax = max;
1011       printf ("#define MAX_BITSIZE_MODE_ANY_INT (%d*BITS_PER_UNIT)\n", mmax);
1012     }
1013   else
1014     printf ("#define MAX_BITSIZE_MODE_ANY_INT %d\n", max_bitsize_mode_any_int);
1015 
1016   if (max_bitsize_mode_any_mode == 0)
1017     {
1018       mmax = 0;
1019       for (j = 0; j < MAX_MODE_CLASS; j++)
1020 	for (i = modes[j]; i; i = i->next)
1021 	  if (mmax < i->bytesize)
1022 	    mmax = i->bytesize;
1023       printf ("#define MAX_BITSIZE_MODE_ANY_MODE (%d*BITS_PER_UNIT)\n", mmax);
1024     }
1025   else
1026     printf ("#define MAX_BITSIZE_MODE_ANY_MODE %d\n",
1027 	    max_bitsize_mode_any_mode);
1028 }
1029 
1030 /* Emit mode_size_inline routine into insn-modes.h header.  */
1031 static void
emit_mode_size_inline(void)1032 emit_mode_size_inline (void)
1033 {
1034   int c;
1035   struct mode_adjust *a;
1036   struct mode_data *m;
1037 
1038   /* Size adjustments must be propagated to all containing modes.  */
1039   for (a = adj_bytesize; a; a = a->next)
1040     {
1041       a->mode->need_bytesize_adj = true;
1042       for (m = a->mode->contained; m; m = m->next_cont)
1043 	m->need_bytesize_adj = true;
1044     }
1045 
1046   /* Changing the number of units by a factor of X also changes the size
1047      by a factor of X.  */
1048   for (mode_adjust *a = adj_nunits; a; a = a->next)
1049     a->mode->need_bytesize_adj = true;
1050 
1051   printf ("\
1052 #ifdef __cplusplus\n\
1053 inline __attribute__((__always_inline__))\n\
1054 #else\n\
1055 extern __inline__ __attribute__((__always_inline__, __gnu_inline__))\n\
1056 #endif\n\
1057 poly_uint16\n\
1058 mode_size_inline (machine_mode mode)\n\
1059 {\n\
1060   extern %spoly_uint16_pod mode_size[NUM_MACHINE_MODES];\n\
1061   gcc_assert (mode >= 0 && mode < NUM_MACHINE_MODES);\n\
1062   switch (mode)\n\
1063     {\n", adj_nunits || adj_bytesize ? "" : "const ");
1064 
1065   for_all_modes (c, m)
1066     if (!m->need_bytesize_adj)
1067       printf ("    case E_%smode: return %u;\n", m->name, m->bytesize);
1068 
1069   puts ("\
1070     default: return mode_size[mode];\n\
1071     }\n\
1072 }\n");
1073 }
1074 
1075 /* Emit mode_nunits_inline routine into insn-modes.h header.  */
1076 static void
emit_mode_nunits_inline(void)1077 emit_mode_nunits_inline (void)
1078 {
1079   int c;
1080   struct mode_data *m;
1081 
1082   for (mode_adjust *a = adj_nunits; a; a = a->next)
1083     a->mode->need_nunits_adj = true;
1084 
1085   printf ("\
1086 #ifdef __cplusplus\n\
1087 inline __attribute__((__always_inline__))\n\
1088 #else\n\
1089 extern __inline__ __attribute__((__always_inline__, __gnu_inline__))\n\
1090 #endif\n\
1091 poly_uint16\n\
1092 mode_nunits_inline (machine_mode mode)\n\
1093 {\n\
1094   extern %spoly_uint16_pod mode_nunits[NUM_MACHINE_MODES];\n\
1095   switch (mode)\n\
1096     {\n", adj_nunits ? "" : "const ");
1097 
1098   for_all_modes (c, m)
1099     if (!m->need_nunits_adj)
1100       printf ("    case E_%smode: return %u;\n", m->name, m->ncomponents);
1101 
1102   puts ("\
1103     default: return mode_nunits[mode];\n\
1104     }\n\
1105 }\n");
1106 }
1107 
1108 /* Emit mode_inner_inline routine into insn-modes.h header.  */
1109 static void
emit_mode_inner_inline(void)1110 emit_mode_inner_inline (void)
1111 {
1112   int c;
1113   struct mode_data *m;
1114 
1115   puts ("\
1116 #ifdef __cplusplus\n\
1117 inline __attribute__((__always_inline__))\n\
1118 #else\n\
1119 extern __inline__ __attribute__((__always_inline__, __gnu_inline__))\n\
1120 #endif\n\
1121 unsigned char\n\
1122 mode_inner_inline (machine_mode mode)\n\
1123 {\n\
1124   extern const unsigned char mode_inner[NUM_MACHINE_MODES];\n\
1125   gcc_assert (mode >= 0 && mode < NUM_MACHINE_MODES);\n\
1126   switch (mode)\n\
1127     {");
1128 
1129   for_all_modes (c, m)
1130     printf ("    case E_%smode: return E_%smode;\n", m->name,
1131 	    c != MODE_PARTIAL_INT && m->component
1132 	    ? m->component->name : m->name);
1133 
1134   puts ("\
1135     default: return mode_inner[mode];\n\
1136     }\n\
1137 }\n");
1138 }
1139 
1140 /* Emit mode_unit_size_inline routine into insn-modes.h header.  */
1141 static void
emit_mode_unit_size_inline(void)1142 emit_mode_unit_size_inline (void)
1143 {
1144   int c;
1145   struct mode_data *m;
1146 
1147   puts ("\
1148 #ifdef __cplusplus\n\
1149 inline __attribute__((__always_inline__))\n\
1150 #else\n\
1151 extern __inline__ __attribute__((__always_inline__, __gnu_inline__))\n\
1152 #endif\n\
1153 unsigned char\n\
1154 mode_unit_size_inline (machine_mode mode)\n\
1155 {\n\
1156   extern CONST_MODE_UNIT_SIZE unsigned char mode_unit_size[NUM_MACHINE_MODES];\
1157 \n\
1158   gcc_assert (mode >= 0 && mode < NUM_MACHINE_MODES);\n\
1159   switch (mode)\n\
1160     {");
1161 
1162   for_all_modes (c, m)
1163     {
1164       const char *name = m->name;
1165       struct mode_data *m2 = m;
1166       if (c != MODE_PARTIAL_INT && m2->component)
1167 	m2 = m2->component;
1168       if (!m2->need_bytesize_adj)
1169 	printf ("    case E_%smode: return %u;\n", name, m2->bytesize);
1170     }
1171 
1172   puts ("\
1173     default: return mode_unit_size[mode];\n\
1174     }\n\
1175 }\n");
1176 }
1177 
1178 /* Emit mode_unit_precision_inline routine into insn-modes.h header.  */
1179 static void
emit_mode_unit_precision_inline(void)1180 emit_mode_unit_precision_inline (void)
1181 {
1182   int c;
1183   struct mode_data *m;
1184 
1185   puts ("\
1186 #ifdef __cplusplus\n\
1187 inline __attribute__((__always_inline__))\n\
1188 #else\n\
1189 extern __inline__ __attribute__((__always_inline__, __gnu_inline__))\n\
1190 #endif\n\
1191 unsigned short\n\
1192 mode_unit_precision_inline (machine_mode mode)\n\
1193 {\n\
1194   extern const unsigned short mode_unit_precision[NUM_MACHINE_MODES];\n\
1195   gcc_assert (mode >= 0 && mode < NUM_MACHINE_MODES);\n\
1196   switch (mode)\n\
1197     {");
1198 
1199   for_all_modes (c, m)
1200     {
1201       struct mode_data *m2
1202 	= (c != MODE_PARTIAL_INT && m->component) ? m->component : m;
1203       if (m2->precision != (unsigned int)-1)
1204 	printf ("    case E_%smode: return %u;\n", m->name, m2->precision);
1205       else
1206 	printf ("    case E_%smode: return %u*BITS_PER_UNIT;\n",
1207 		m->name, m2->bytesize);
1208     }
1209 
1210   puts ("\
1211     default: return mode_unit_precision[mode];\n\
1212     }\n\
1213 }\n");
1214 }
1215 
1216 /* Return the best machine mode class for MODE, or null if machine_mode
1217    should be used.  */
1218 
1219 static const char *
get_mode_class(struct mode_data * mode)1220 get_mode_class (struct mode_data *mode)
1221 {
1222   switch (mode->cl)
1223     {
1224     case MODE_INT:
1225     case MODE_PARTIAL_INT:
1226       return "scalar_int_mode";
1227 
1228     case MODE_FRACT:
1229     case MODE_UFRACT:
1230     case MODE_ACCUM:
1231     case MODE_UACCUM:
1232       return "scalar_mode";
1233 
1234     case MODE_FLOAT:
1235     case MODE_DECIMAL_FLOAT:
1236       return "scalar_float_mode";
1237 
1238     case MODE_COMPLEX_INT:
1239     case MODE_COMPLEX_FLOAT:
1240       return "complex_mode";
1241 
1242     default:
1243       return NULL;
1244     }
1245 }
1246 
1247 static void
emit_insn_modes_h(void)1248 emit_insn_modes_h (void)
1249 {
1250   int c;
1251   struct mode_data *m, *first, *last;
1252   int n_int_n_ents = 0;
1253 
1254   printf ("/* Generated automatically from machmode.def%s%s\n",
1255 	   HAVE_EXTRA_MODES ? " and " : "",
1256 	   EXTRA_MODES_FILE);
1257 
1258   puts ("\
1259    by genmodes.  */\n\
1260 \n\
1261 #ifndef GCC_INSN_MODES_H\n\
1262 #define GCC_INSN_MODES_H\n\
1263 \n\
1264 enum machine_mode\n{");
1265 
1266   for (c = 0; c < MAX_MODE_CLASS; c++)
1267     for (m = modes[c]; m; m = m->next)
1268       {
1269 	int count_ = printf ("  E_%smode,", m->name);
1270 	printf ("%*s/* %s:%d */\n", 27 - count_, "",
1271 		 trim_filename (m->file), m->line);
1272 	printf ("#define HAVE_%smode\n", m->name);
1273 	printf ("#ifdef USE_ENUM_MODES\n");
1274 	printf ("#define %smode E_%smode\n", m->name, m->name);
1275 	printf ("#else\n");
1276 	if (const char *mode_class = get_mode_class (m))
1277 	  printf ("#define %smode (%s ((%s::from_int) E_%smode))\n",
1278 		  m->name, mode_class, mode_class, m->name);
1279 	else
1280 	  printf ("#define %smode ((void) 0, E_%smode)\n",
1281 		  m->name, m->name);
1282 	printf ("#endif\n");
1283       }
1284 
1285   puts ("  MAX_MACHINE_MODE,\n");
1286 
1287   for (c = 0; c < MAX_MODE_CLASS; c++)
1288     {
1289       first = modes[c];
1290       last = 0;
1291       for (m = first; m; last = m, m = m->next)
1292 	;
1293 
1294       /* Don't use BImode for MIN_MODE_INT, since otherwise the middle
1295 	 end will try to use it for bitfields in structures and the
1296 	 like, which we do not want.  Only the target md file should
1297 	 generate BImode widgets.  */
1298       if (first && first->precision == 1 && c == MODE_INT)
1299 	first = first->next;
1300 
1301       if (first && last)
1302 	printf ("  MIN_%s = E_%smode,\n  MAX_%s = E_%smode,\n\n",
1303 		 mode_class_names[c], first->name,
1304 		 mode_class_names[c], last->name);
1305       else
1306 	printf ("  MIN_%s = E_%smode,\n  MAX_%s = E_%smode,\n\n",
1307 		 mode_class_names[c], void_mode->name,
1308 		 mode_class_names[c], void_mode->name);
1309     }
1310 
1311   puts ("\
1312   NUM_MACHINE_MODES = MAX_MACHINE_MODE\n\
1313 };\n");
1314 
1315   /* I can't think of a better idea, can you?  */
1316   printf ("#define CONST_MODE_NUNITS%s\n", adj_nunits ? "" : " const");
1317   printf ("#define CONST_MODE_PRECISION%s\n", adj_nunits ? "" : " const");
1318   printf ("#define CONST_MODE_SIZE%s\n",
1319 	  adj_bytesize || adj_nunits ? "" : " const");
1320   printf ("#define CONST_MODE_UNIT_SIZE%s\n", adj_bytesize ? "" : " const");
1321   printf ("#define CONST_MODE_BASE_ALIGN%s\n", adj_alignment ? "" : " const");
1322 #if 0 /* disabled for backward compatibility, temporary */
1323   printf ("#define CONST_REAL_FORMAT_FOR_MODE%s\n", adj_format ? "" :" const");
1324 #endif
1325   printf ("#define CONST_MODE_IBIT%s\n", adj_ibit ? "" : " const");
1326   printf ("#define CONST_MODE_FBIT%s\n", adj_fbit ? "" : " const");
1327   printf ("#define CONST_MODE_MASK%s\n", adj_nunits ? "" : " const");
1328   emit_max_int ();
1329 
1330   for_all_modes (c, m)
1331     if (m->int_n)
1332       n_int_n_ents ++;
1333 
1334   printf ("#define NUM_INT_N_ENTS %d\n", n_int_n_ents);
1335 
1336   printf ("#define NUM_POLY_INT_COEFFS %d\n", NUM_POLY_INT_COEFFS);
1337 
1338   puts ("\
1339 \n\
1340 #endif /* insn-modes.h */");
1341 }
1342 
1343 static void
emit_insn_modes_inline_h(void)1344 emit_insn_modes_inline_h (void)
1345 {
1346   printf ("/* Generated automatically from machmode.def%s%s\n",
1347 	   HAVE_EXTRA_MODES ? " and " : "",
1348 	   EXTRA_MODES_FILE);
1349 
1350   puts ("\
1351    by genmodes.  */\n\
1352 \n\
1353 #ifndef GCC_INSN_MODES_INLINE_H\n\
1354 #define GCC_INSN_MODES_INLINE_H");
1355 
1356   puts ("\n#if !defined (USED_FOR_TARGET) && GCC_VERSION >= 4001\n");
1357   emit_mode_size_inline ();
1358   emit_mode_nunits_inline ();
1359   emit_mode_inner_inline ();
1360   emit_mode_unit_size_inline ();
1361   emit_mode_unit_precision_inline ();
1362   puts ("#endif /* GCC_VERSION >= 4001 */");
1363 
1364   puts ("\
1365 \n\
1366 #endif /* insn-modes-inline.h */");
1367 }
1368 
1369 static void
emit_insn_modes_c_header(void)1370 emit_insn_modes_c_header (void)
1371 {
1372   printf ("/* Generated automatically from machmode.def%s%s\n",
1373 	   HAVE_EXTRA_MODES ? " and " : "",
1374 	   EXTRA_MODES_FILE);
1375 
1376   puts ("\
1377    by genmodes.  */\n\
1378 \n\
1379 #include \"config.h\"\n\
1380 #include \"system.h\"\n\
1381 #include \"coretypes.h\"\n\
1382 #include \"tm.h\"\n\
1383 #include \"real.h\"");
1384 }
1385 
1386 static void
emit_min_insn_modes_c_header(void)1387 emit_min_insn_modes_c_header (void)
1388 {
1389   printf ("/* Generated automatically from machmode.def%s%s\n",
1390 	   HAVE_EXTRA_MODES ? " and " : "",
1391 	   EXTRA_MODES_FILE);
1392 
1393   puts ("\
1394    by genmodes.  */\n\
1395 \n\
1396 #include \"bconfig.h\"\n\
1397 #include \"system.h\"\n\
1398 #include \"coretypes.h\"");
1399 }
1400 
1401 static void
emit_mode_name(void)1402 emit_mode_name (void)
1403 {
1404   int c;
1405   struct mode_data *m;
1406 
1407   print_decl ("char *const", "mode_name", "NUM_MACHINE_MODES");
1408 
1409   for_all_modes (c, m)
1410     printf ("  \"%s\",\n", m->name);
1411 
1412   print_closer ();
1413 }
1414 
1415 static void
emit_mode_class(void)1416 emit_mode_class (void)
1417 {
1418   int c;
1419   struct mode_data *m;
1420 
1421   print_decl ("unsigned char", "mode_class", "NUM_MACHINE_MODES");
1422 
1423   for_all_modes (c, m)
1424     tagged_printf ("%s", mode_class_names[m->cl], m->name);
1425 
1426   print_closer ();
1427 }
1428 
1429 static void
emit_mode_precision(void)1430 emit_mode_precision (void)
1431 {
1432   int c;
1433   struct mode_data *m;
1434 
1435   print_maybe_const_decl ("%spoly_uint16_pod", "mode_precision",
1436 			  "NUM_MACHINE_MODES", adj_nunits);
1437 
1438   for_all_modes (c, m)
1439     if (m->precision != (unsigned int)-1)
1440       tagged_printf ("{ %u" ZERO_COEFFS " }", m->precision, m->name);
1441     else
1442       tagged_printf ("{ %u * BITS_PER_UNIT" ZERO_COEFFS " }",
1443 		     m->bytesize, m->name);
1444 
1445   print_closer ();
1446 }
1447 
1448 static void
emit_mode_size(void)1449 emit_mode_size (void)
1450 {
1451   int c;
1452   struct mode_data *m;
1453 
1454   print_maybe_const_decl ("%spoly_uint16_pod", "mode_size",
1455 			  "NUM_MACHINE_MODES", adj_nunits || adj_bytesize);
1456 
1457   for_all_modes (c, m)
1458     tagged_printf ("{ %u" ZERO_COEFFS " }", m->bytesize, m->name);
1459 
1460   print_closer ();
1461 }
1462 
1463 static void
emit_mode_nunits(void)1464 emit_mode_nunits (void)
1465 {
1466   int c;
1467   struct mode_data *m;
1468 
1469   print_maybe_const_decl ("%spoly_uint16_pod", "mode_nunits",
1470 			  "NUM_MACHINE_MODES", adj_nunits);
1471 
1472   for_all_modes (c, m)
1473     tagged_printf ("{ %u" ZERO_COEFFS " }", m->ncomponents, m->name);
1474 
1475   print_closer ();
1476 }
1477 
1478 static void
emit_mode_wider(void)1479 emit_mode_wider (void)
1480 {
1481   int c;
1482   struct mode_data *m;
1483 
1484   print_decl ("unsigned char", "mode_wider", "NUM_MACHINE_MODES");
1485 
1486   for_all_modes (c, m)
1487     tagged_printf ("E_%smode",
1488 		   m->wider ? m->wider->name : void_mode->name,
1489 		   m->name);
1490 
1491   print_closer ();
1492   print_decl ("unsigned char", "mode_2xwider", "NUM_MACHINE_MODES");
1493 
1494   for_all_modes (c, m)
1495     {
1496       struct mode_data * m2;
1497 
1498       for (m2 = m;
1499 	   m2 && m2 != void_mode;
1500 	   m2 = m2->wider)
1501 	{
1502 	  if (m2->bytesize < 2 * m->bytesize)
1503 	    continue;
1504 	  if (m->precision != (unsigned int) -1)
1505 	    {
1506 	      if (m2->precision != 2 * m->precision)
1507 		continue;
1508 	    }
1509 	  else
1510 	    {
1511 	      if (m2->precision != (unsigned int) -1)
1512 		continue;
1513 	    }
1514 
1515 	  /* For vectors we want twice the number of components,
1516 	     with the same element type.  */
1517 	  if (m->cl == MODE_VECTOR_BOOL
1518 	      || m->cl == MODE_VECTOR_INT
1519 	      || m->cl == MODE_VECTOR_FLOAT
1520 	      || m->cl == MODE_VECTOR_FRACT
1521 	      || m->cl == MODE_VECTOR_UFRACT
1522 	      || m->cl == MODE_VECTOR_ACCUM
1523 	      || m->cl == MODE_VECTOR_UACCUM)
1524 	    {
1525 	      if (m2->ncomponents != 2 * m->ncomponents)
1526 		continue;
1527 	      if (m->component != m2->component)
1528 		continue;
1529 	    }
1530 
1531 	  break;
1532 	}
1533       if (m2 == void_mode)
1534 	m2 = 0;
1535       tagged_printf ("E_%smode",
1536 		     m2 ? m2->name : void_mode->name,
1537 		     m->name);
1538     }
1539 
1540   print_closer ();
1541 }
1542 
1543 static void
emit_mode_complex(void)1544 emit_mode_complex (void)
1545 {
1546   int c;
1547   struct mode_data *m;
1548 
1549   print_decl ("unsigned char", "mode_complex", "NUM_MACHINE_MODES");
1550 
1551   for_all_modes (c, m)
1552     tagged_printf ("E_%smode",
1553 		   m->complex ? m->complex->name : void_mode->name,
1554 		   m->name);
1555 
1556   print_closer ();
1557 }
1558 
1559 static void
emit_mode_mask(void)1560 emit_mode_mask (void)
1561 {
1562   int c;
1563   struct mode_data *m;
1564 
1565   print_maybe_const_decl ("%sunsigned HOST_WIDE_INT", "mode_mask_array",
1566 			  "NUM_MACHINE_MODES", adj_nunits);
1567   puts ("\
1568 #define MODE_MASK(m)                          \\\n\
1569   ((m) >= HOST_BITS_PER_WIDE_INT)             \\\n\
1570    ? HOST_WIDE_INT_M1U                        \\\n\
1571    : (HOST_WIDE_INT_1U << (m)) - 1\n");
1572 
1573   for_all_modes (c, m)
1574     if (m->precision != (unsigned int)-1)
1575       tagged_printf ("MODE_MASK (%u)", m->precision, m->name);
1576     else
1577       tagged_printf ("MODE_MASK (%u*BITS_PER_UNIT)", m->bytesize, m->name);
1578 
1579   puts ("#undef MODE_MASK");
1580   print_closer ();
1581 }
1582 
1583 static void
emit_mode_inner(void)1584 emit_mode_inner (void)
1585 {
1586   int c;
1587   struct mode_data *m;
1588 
1589   print_decl ("unsigned char", "mode_inner", "NUM_MACHINE_MODES");
1590 
1591   for_all_modes (c, m)
1592     tagged_printf ("E_%smode",
1593 		   c != MODE_PARTIAL_INT && m->component
1594 		   ? m->component->name : m->name,
1595 		   m->name);
1596 
1597   print_closer ();
1598 }
1599 
1600 /* Emit mode_unit_size array into insn-modes.c file.  */
1601 static void
emit_mode_unit_size(void)1602 emit_mode_unit_size (void)
1603 {
1604   int c;
1605   struct mode_data *m;
1606 
1607   print_maybe_const_decl ("%sunsigned char", "mode_unit_size",
1608 			  "NUM_MACHINE_MODES", adj_bytesize);
1609 
1610   for_all_modes (c, m)
1611     tagged_printf ("%u",
1612 		   c != MODE_PARTIAL_INT && m->component
1613 		   ? m->component->bytesize : m->bytesize, m->name);
1614 
1615   print_closer ();
1616 }
1617 
1618 /* Emit mode_unit_precision array into insn-modes.c file.  */
1619 static void
emit_mode_unit_precision(void)1620 emit_mode_unit_precision (void)
1621 {
1622   int c;
1623   struct mode_data *m;
1624 
1625   print_decl ("unsigned short", "mode_unit_precision", "NUM_MACHINE_MODES");
1626 
1627   for_all_modes (c, m)
1628     {
1629       struct mode_data *m2 = (c != MODE_PARTIAL_INT && m->component) ?
1630 			     m->component : m;
1631       if (m2->precision != (unsigned int)-1)
1632 	tagged_printf ("%u", m2->precision, m->name);
1633       else
1634 	tagged_printf ("%u*BITS_PER_UNIT", m2->bytesize, m->name);
1635     }
1636 
1637   print_closer ();
1638 }
1639 
1640 
1641 static void
emit_mode_base_align(void)1642 emit_mode_base_align (void)
1643 {
1644   int c;
1645   struct mode_data *m;
1646 
1647   print_maybe_const_decl ("%sunsigned short",
1648 			  "mode_base_align", "NUM_MACHINE_MODES",
1649 			  adj_alignment);
1650 
1651   for_all_modes (c, m)
1652     tagged_printf ("%u", m->alignment, m->name);
1653 
1654   print_closer ();
1655 }
1656 
1657 static void
emit_class_narrowest_mode(void)1658 emit_class_narrowest_mode (void)
1659 {
1660   int c;
1661 
1662   print_decl ("unsigned char", "class_narrowest_mode", "MAX_MODE_CLASS");
1663 
1664   for (c = 0; c < MAX_MODE_CLASS; c++)
1665     /* Bleah, all this to get the comment right for MIN_MODE_INT.  */
1666     tagged_printf ("MIN_%s", mode_class_names[c],
1667 		   modes[c]
1668 		   ? ((c != MODE_INT || modes[c]->precision != 1)
1669 		      ? modes[c]->name
1670 		      : (modes[c]->next
1671 			 ? modes[c]->next->name
1672 			 : void_mode->name))
1673 		   : void_mode->name);
1674 
1675   print_closer ();
1676 }
1677 
1678 static void
emit_real_format_for_mode(void)1679 emit_real_format_for_mode (void)
1680 {
1681   struct mode_data *m;
1682 
1683   /* The entities pointed to by this table are constant, whether
1684      or not the table itself is constant.
1685 
1686      For backward compatibility this table is always writable
1687      (several targets modify it in TARGET_OPTION_OVERRIDE).   FIXME:
1688      convert all said targets to use ADJUST_FORMAT instead.  */
1689 #if 0
1690   print_maybe_const_decl ("const struct real_format *%s",
1691 			  "real_format_for_mode",
1692 			  "MAX_MODE_FLOAT - MIN_MODE_FLOAT + 1",
1693 			  format);
1694 #else
1695   print_decl ("struct real_format *\n", "real_format_for_mode",
1696 	      "MAX_MODE_FLOAT - MIN_MODE_FLOAT + 1 "
1697 	      "+ MAX_MODE_DECIMAL_FLOAT - MIN_MODE_DECIMAL_FLOAT + 1");
1698 #endif
1699 
1700   /* The beginning of the table is entries for float modes.  */
1701   for (m = modes[MODE_FLOAT]; m; m = m->next)
1702     if (!strcmp (m->format, "0"))
1703       tagged_printf ("%s", m->format, m->name);
1704     else
1705       tagged_printf ("&%s", m->format, m->name);
1706 
1707   /* The end of the table is entries for decimal float modes.  */
1708   for (m = modes[MODE_DECIMAL_FLOAT]; m; m = m->next)
1709     if (!strcmp (m->format, "0"))
1710       tagged_printf ("%s", m->format, m->name);
1711     else
1712       tagged_printf ("&%s", m->format, m->name);
1713 
1714   print_closer ();
1715 }
1716 
1717 static void
emit_mode_adjustments(void)1718 emit_mode_adjustments (void)
1719 {
1720   struct mode_adjust *a;
1721   struct mode_data *m;
1722 
1723   if (adj_nunits)
1724     printf ("\n"
1725 	    "void\n"
1726 	    "adjust_mode_mask (machine_mode mode)\n"
1727 	    "{\n"
1728 	    "  unsigned int precision;\n"
1729 	    "  if (GET_MODE_PRECISION (mode).is_constant (&precision)\n"
1730 	    "      && precision < HOST_BITS_PER_WIDE_INT)\n"
1731 	    "    mode_mask_array[mode] = (HOST_WIDE_INT_1U << precision) - 1;"
1732 	    "\n"
1733 	    "  else\n"
1734 	    "    mode_mask_array[mode] = HOST_WIDE_INT_M1U;\n"
1735 	    "}\n");
1736 
1737   puts ("\
1738 \nvoid\
1739 \ninit_adjust_machine_modes (void)\
1740 \n{\
1741 \n  poly_uint16 ps ATTRIBUTE_UNUSED;\n\
1742   size_t s ATTRIBUTE_UNUSED;");
1743 
1744   for (a = adj_nunits; a; a = a->next)
1745     {
1746       m = a->mode;
1747       printf ("\n"
1748 	      "  {\n"
1749 	      "    /* %s:%d */\n  ps = %s;\n",
1750 	      a->file, a->line, a->adjustment);
1751       printf ("    int old_factor = vector_element_size"
1752 	      " (mode_precision[E_%smode], mode_nunits[E_%smode]);\n",
1753 	      m->name, m->name);
1754       printf ("    mode_precision[E_%smode] = ps * old_factor;\n", m->name);
1755       printf ("    mode_size[E_%smode] = exact_div (mode_precision[E_%smode],"
1756 	      " BITS_PER_UNIT);\n", m->name, m->name);
1757       printf ("    mode_nunits[E_%smode] = ps;\n", m->name);
1758       printf ("    adjust_mode_mask (E_%smode);\n", m->name);
1759       printf ("  }\n");
1760     }
1761 
1762   /* Size adjustments must be propagated to all containing modes.
1763      A size adjustment forces us to recalculate the alignment too.  */
1764   for (a = adj_bytesize; a; a = a->next)
1765     {
1766       printf ("\n  /* %s:%d */\n", a->file, a->line);
1767       switch (a->mode->cl)
1768 	{
1769 	case MODE_VECTOR_BOOL:
1770 	case MODE_VECTOR_INT:
1771 	case MODE_VECTOR_FLOAT:
1772 	case MODE_VECTOR_FRACT:
1773 	case MODE_VECTOR_UFRACT:
1774 	case MODE_VECTOR_ACCUM:
1775 	case MODE_VECTOR_UACCUM:
1776 	  printf ("  ps = %s;\n", a->adjustment);
1777 	  printf ("  s = mode_unit_size[E_%smode];\n", a->mode->name);
1778 	  break;
1779 
1780 	default:
1781 	  printf ("  ps = s = %s;\n", a->adjustment);
1782 	  printf ("  mode_unit_size[E_%smode] = s;\n", a->mode->name);
1783 	  break;
1784 	}
1785       printf ("  mode_size[E_%smode] = ps;\n", a->mode->name);
1786       printf ("  mode_base_align[E_%smode] = known_alignment (ps);\n",
1787 	      a->mode->name);
1788 
1789       for (m = a->mode->contained; m; m = m->next_cont)
1790 	{
1791 	  switch (m->cl)
1792 	    {
1793 	    case MODE_COMPLEX_INT:
1794 	    case MODE_COMPLEX_FLOAT:
1795 	      printf ("  mode_size[E_%smode] = 2*s;\n", m->name);
1796 	      printf ("  mode_unit_size[E_%smode] = s;\n", m->name);
1797 	      printf ("  mode_base_align[E_%smode] = s & (~s + 1);\n",
1798 		      m->name);
1799 	      break;
1800 
1801 	    case MODE_VECTOR_BOOL:
1802 	      /* Changes to BImode should not affect vector booleans.  */
1803 	      break;
1804 
1805 	    case MODE_VECTOR_INT:
1806 	    case MODE_VECTOR_FLOAT:
1807 	    case MODE_VECTOR_FRACT:
1808 	    case MODE_VECTOR_UFRACT:
1809 	    case MODE_VECTOR_ACCUM:
1810 	    case MODE_VECTOR_UACCUM:
1811 	      printf ("  mode_size[E_%smode] = %d * ps;\n",
1812 		      m->name, m->ncomponents);
1813 	      printf ("  mode_unit_size[E_%smode] = s;\n", m->name);
1814 	      printf ("  mode_base_align[E_%smode]"
1815 		      " = known_alignment (%d * ps);\n",
1816 		      m->name, m->ncomponents);
1817 	      break;
1818 
1819 	    default:
1820 	      internal_error (
1821 	      "mode %s is neither vector nor complex but contains %s",
1822 	      m->name, a->mode->name);
1823 	      /* NOTREACHED */
1824 	    }
1825 	}
1826     }
1827 
1828   /* Alignment adjustments propagate too.
1829      ??? This may not be the right thing for vector modes.  */
1830   for (a = adj_alignment; a; a = a->next)
1831     {
1832       printf ("\n  /* %s:%d */\n  s = %s;\n",
1833 	      a->file, a->line, a->adjustment);
1834       printf ("  mode_base_align[E_%smode] = s;\n", a->mode->name);
1835 
1836       for (m = a->mode->contained; m; m = m->next_cont)
1837 	{
1838 	  switch (m->cl)
1839 	    {
1840 	    case MODE_COMPLEX_INT:
1841 	    case MODE_COMPLEX_FLOAT:
1842 	      printf ("  mode_base_align[E_%smode] = s;\n", m->name);
1843 	      break;
1844 
1845 	    case MODE_VECTOR_BOOL:
1846 	      /* Changes to BImode should not affect vector booleans.  */
1847 	      break;
1848 
1849 	    case MODE_VECTOR_INT:
1850 	    case MODE_VECTOR_FLOAT:
1851 	    case MODE_VECTOR_FRACT:
1852 	    case MODE_VECTOR_UFRACT:
1853 	    case MODE_VECTOR_ACCUM:
1854 	    case MODE_VECTOR_UACCUM:
1855 	      printf ("  mode_base_align[E_%smode] = %d*s;\n",
1856 		      m->name, m->ncomponents);
1857 	      break;
1858 
1859 	    default:
1860 	      internal_error (
1861 	      "mode %s is neither vector nor complex but contains %s",
1862 	      m->name, a->mode->name);
1863 	      /* NOTREACHED */
1864 	    }
1865 	}
1866     }
1867 
1868   /* Ibit adjustments don't have to propagate.  */
1869   for (a = adj_ibit; a; a = a->next)
1870     {
1871       printf ("\n  /* %s:%d */\n  s = %s;\n",
1872 	      a->file, a->line, a->adjustment);
1873       printf ("  mode_ibit[E_%smode] = s;\n", a->mode->name);
1874     }
1875 
1876   /* Fbit adjustments don't have to propagate.  */
1877   for (a = adj_fbit; a; a = a->next)
1878     {
1879       printf ("\n  /* %s:%d */\n  s = %s;\n",
1880 	      a->file, a->line, a->adjustment);
1881       printf ("  mode_fbit[E_%smode] = s;\n", a->mode->name);
1882     }
1883 
1884   /* Real mode formats don't have to propagate anywhere.  */
1885   for (a = adj_format; a; a = a->next)
1886     printf ("\n  /* %s:%d */\n  REAL_MODE_FORMAT (E_%smode) = %s;\n",
1887 	    a->file, a->line, a->mode->name, a->adjustment);
1888 
1889   puts ("}");
1890 }
1891 
1892 /* Emit ibit for all modes.  */
1893 
1894 static void
emit_mode_ibit(void)1895 emit_mode_ibit (void)
1896 {
1897   int c;
1898   struct mode_data *m;
1899 
1900   print_maybe_const_decl ("%sunsigned char",
1901 			  "mode_ibit", "NUM_MACHINE_MODES",
1902 			  adj_ibit);
1903 
1904   for_all_modes (c, m)
1905     tagged_printf ("%u", m->ibit, m->name);
1906 
1907   print_closer ();
1908 }
1909 
1910 /* Emit fbit for all modes.  */
1911 
1912 static void
emit_mode_fbit(void)1913 emit_mode_fbit (void)
1914 {
1915   int c;
1916   struct mode_data *m;
1917 
1918   print_maybe_const_decl ("%sunsigned char",
1919 			  "mode_fbit", "NUM_MACHINE_MODES",
1920 			  adj_fbit);
1921 
1922   for_all_modes (c, m)
1923     tagged_printf ("%u", m->fbit, m->name);
1924 
1925   print_closer ();
1926 }
1927 
1928 /* Emit __intN for all modes.  */
1929 
1930 static void
emit_mode_int_n(void)1931 emit_mode_int_n (void)
1932 {
1933   int c;
1934   struct mode_data *m;
1935   struct mode_data **mode_sort;
1936   int n_modes = 0;
1937   int i, j;
1938 
1939   print_decl ("int_n_data_t", "int_n_data", "");
1940 
1941   n_modes = 0;
1942   for_all_modes (c, m)
1943     if (m->int_n)
1944       n_modes ++;
1945   mode_sort = XALLOCAVEC (struct mode_data *, n_modes);
1946 
1947   n_modes = 0;
1948   for_all_modes (c, m)
1949     if (m->int_n)
1950       mode_sort[n_modes++] = m;
1951 
1952   /* Yes, this is a bubblesort, but there are at most four (and
1953      usually only 1-2) entries to sort.  */
1954   for (i = 0; i<n_modes - 1; i++)
1955     for (j = i + 1; j < n_modes; j++)
1956       if (mode_sort[i]->int_n > mode_sort[j]->int_n)
1957 	std::swap (mode_sort[i], mode_sort[j]);
1958 
1959   for (i = 0; i < n_modes; i ++)
1960     {
1961       m = mode_sort[i];
1962       printf(" {\n");
1963       tagged_printf ("%u", m->int_n, m->name);
1964       printf ("{ E_%smode },", m->name);
1965       printf(" },\n");
1966     }
1967 
1968   print_closer ();
1969 }
1970 
1971 
1972 static void
emit_insn_modes_c(void)1973 emit_insn_modes_c (void)
1974 {
1975   emit_insn_modes_c_header ();
1976   emit_mode_name ();
1977   emit_mode_class ();
1978   emit_mode_precision ();
1979   emit_mode_size ();
1980   emit_mode_nunits ();
1981   emit_mode_wider ();
1982   emit_mode_complex ();
1983   emit_mode_mask ();
1984   emit_mode_inner ();
1985   emit_mode_unit_size ();
1986   emit_mode_unit_precision ();
1987   emit_mode_base_align ();
1988   emit_class_narrowest_mode ();
1989   emit_real_format_for_mode ();
1990   emit_mode_adjustments ();
1991   emit_mode_ibit ();
1992   emit_mode_fbit ();
1993   emit_mode_int_n ();
1994 }
1995 
1996 static void
emit_min_insn_modes_c(void)1997 emit_min_insn_modes_c (void)
1998 {
1999   emit_min_insn_modes_c_header ();
2000   emit_mode_name ();
2001   emit_mode_class ();
2002   emit_mode_nunits ();
2003   emit_mode_wider ();
2004   emit_mode_inner ();
2005   emit_class_narrowest_mode ();
2006 }
2007 
2008 /* Master control.  */
2009 int
main(int argc,char ** argv)2010 main (int argc, char **argv)
2011 {
2012   bool gen_header = false, gen_inlines = false, gen_min = false;
2013   progname = argv[0];
2014 
2015   if (argc == 1)
2016     ;
2017   else if (argc == 2 && !strcmp (argv[1], "-h"))
2018     gen_header = true;
2019   else if (argc == 2 && !strcmp (argv[1], "-i"))
2020     gen_inlines = true;
2021   else if (argc == 2 && !strcmp (argv[1], "-m"))
2022     gen_min = true;
2023   else
2024     {
2025       error ("usage: %s [-h|-i|-m] > file", progname);
2026       return FATAL_EXIT_CODE;
2027     }
2028 
2029   modes_by_name = htab_create_alloc (64, hash_mode, eq_mode, 0, xcalloc, free);
2030 
2031   create_modes ();
2032   complete_all_modes ();
2033 
2034   if (have_error)
2035     return FATAL_EXIT_CODE;
2036 
2037   calc_wider_mode ();
2038 
2039   if (gen_header)
2040     emit_insn_modes_h ();
2041   else if (gen_inlines)
2042     emit_insn_modes_inline_h ();
2043   else if (gen_min)
2044     emit_min_insn_modes_c ();
2045   else
2046     emit_insn_modes_c ();
2047 
2048   if (fflush (stdout) || fclose (stdout))
2049     return FATAL_EXIT_CODE;
2050   return SUCCESS_EXIT_CODE;
2051 }
2052