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1 282 jeremybenn 
/* mips16 floating point support code
2 
   Copyright (C) 1996, 1997, 1998, 2008, 2009 Free Software Foundation, Inc.
3 
   Contributed by Cygnus Support
4 
 
5 
This file is free software; you can redistribute it and/or modify it
6 
under the terms of the GNU General Public License as published by the
7 
Free Software Foundation; either version 3, or (at your option) any
8 
later version.
9 
 
10 
This file is distributed in the hope that it will be useful, but
11 
WITHOUT ANY WARRANTY; without even the implied warranty of
12 
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13 
General Public License for more details.
14 
 
15 
Under Section 7 of GPL version 3, you are granted additional
16 
permissions described in the GCC Runtime Library Exception, version
17 
3.1, as published by the Free Software Foundation.
18 
 
19 
You should have received a copy of the GNU General Public License and
20 
a copy of the GCC Runtime Library Exception along with this program;
21 
see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
22 
.  */
23 
 
24 
/* This file contains mips16 floating point support functions.  These
25 
   functions are called by mips16 code to handle floating point when
26 
   -msoft-float is not used.  They accept the arguments and return
27 
   values using the soft-float calling convention, but do the actual
28 
   operation using the hard floating point instructions.  */
29 
 
30 
#if defined _MIPS_SIM && (_MIPS_SIM == _ABIO32 || _MIPS_SIM == _ABIO64)
31 
 
32 
/* This file contains 32-bit assembly code.  */
33 
        .set nomips16
34 
 
35 
/* Start a function.  */
36 
 
37 
#define STARTFN(NAME) .globl NAME; .ent NAME; NAME:
38 
 
39 
/* Finish a function.  */
40 
 
41 
#define ENDFN(NAME) .end NAME
42 
 
43 
/* ARG1
44 
        The FPR that holds the first floating-point argument.
45 
 
46 
   ARG2
47 
        The FPR that holds the second floating-point argument.
48 
 
49 
   RET
50 
        The FPR that holds a floating-point return value.  */
51 
 
52 
#define RET $f0
53 
#define ARG1 $f12
54 
#ifdef __mips64
55 
#define ARG2 $f13
56 
#else
57 
#define ARG2 $f14
58 
#endif
59 
 
60 
/* Set 64-bit register GPR so that its high 32 bits contain HIGH_FPR
61 
   and so that its low 32 bits contain LOW_FPR.  */
62 
#define MERGE_GPRf(GPR, HIGH_FPR, LOW_FPR)      \
63 
        .set    noat;                           \
64 
        mfc1    GPR, HIGH_FPR;                  \
65 
        mfc1    $1, LOW_FPR;                    \
66 
        dsll    GPR, GPR, 32;                   \
67 
        or      GPR, GPR, $1;                   \
68 
        .set    at
69 
 
70 
/* Move the high 32 bits of GPR to HIGH_FPR and the low 32 bits of
71 
   GPR to LOW_FPR.  */
72 
#define MERGE_GPRt(GPR, HIGH_FPR, LOW_FPR)      \
73 
        .set    noat;                           \
74 
        dsrl    $1, GPR, 32;                    \
75 
        mtc1    GPR, LOW_FPR;                   \
76 
        mtc1    $1, HIGH_FPR;                   \
77 
        .set    at
78 
 
79 
/* Jump to T, and use "OPCODE, OP2" to implement a delayed move.  */
80 
#define DELAYt(T, OPCODE, OP2)                  \
81 
        .set    noreorder;                      \
82 
        jr      T;                              \
83 
        OPCODE, OP2;                            \
84 
        .set    reorder
85 
 
86 
/* Use "OPCODE. OP2" and jump to T.  */
87 
#define DELAYf(T, OPCODE, OP2) OPCODE, OP2; jr T
88 
 
89 
/* MOVE_SF_BYTE0(D)
90 
        Move the first single-precision floating-point argument between
91 
        GPRs and FPRs.
92 
 
93 
   MOVE_SI_BYTE0(D)
94 
        Likewise the first single-precision integer argument.
95 
 
96 
   MOVE_SF_BYTE4(D)
97 
        Move the second single-precision floating-point argument between
98 
        GPRs and FPRs, given that the first argument occupies 4 bytes.
99 
 
100 
   MOVE_SF_BYTE8(D)
101 
        Move the second single-precision floating-point argument between
102 
        GPRs and FPRs, given that the first argument occupies 8 bytes.
103 
 
104 
   MOVE_DF_BYTE0(D)
105 
        Move the first double-precision floating-point argument between
106 
        GPRs and FPRs.
107 
 
108 
   MOVE_DF_BYTE8(D)
109 
        Likewise the second double-precision floating-point argument.
110 
 
111 
   MOVE_SF_RET(D, T)
112 
        Likewise a single-precision floating-point return value,
113 
        then jump to T.
114 
 
115 
   MOVE_SC_RET(D, T)
116 
        Likewise a complex single-precision floating-point return value.
117 
 
118 
   MOVE_DF_RET(D, T)
119 
        Likewise a double-precision floating-point return value.
120 
 
121 
   MOVE_DC_RET(D, T)
122 
        Likewise a complex double-precision floating-point return value.
123 
 
124 
   MOVE_SI_RET(D, T)
125 
        Likewise a single-precision integer return value.
126 
 
127 
   The D argument is "t" to move to FPRs and "f" to move from FPRs.
128 
   The return macros may assume that the target of the jump does not
129 
   use a floating-point register.  */
130 
 
131 
#define MOVE_SF_RET(D, T) DELAY##D (T, m##D##c1 $2,$f0)
132 
#define MOVE_SI_RET(D, T) DELAY##D (T, m##D##c1 $2,$f0)
133 
 
134 
#if defined(__mips64) && defined(__MIPSEB__)
135 
#define MOVE_SC_RET(D, T) MERGE_GPR##D ($2, $f0, $f1); jr T
136 
#elif defined(__mips64)
137 
/* The high 32 bits of $2 correspond to the second word in memory;
138 
   i.e. the imaginary part.  */
139 
#define MOVE_SC_RET(D, T) MERGE_GPR##D ($2, $f1, $f0); jr T
140 
#elif __mips_fpr == 64
141 
#define MOVE_SC_RET(D, T) m##D##c1 $2,$f0; DELAY##D (T, m##D##c1 $3,$f1)
142 
#else
143 
#define MOVE_SC_RET(D, T) m##D##c1 $2,$f0; DELAY##D (T, m##D##c1 $3,$f2)
144 
#endif
145 
 
146 
#if defined(__mips64)
147 
#define MOVE_SF_BYTE0(D) m##D##c1 $4,$f12
148 
#define MOVE_SF_BYTE4(D) m##D##c1 $5,$f13
149 
#define MOVE_SF_BYTE8(D) m##D##c1 $5,$f13
150 
#else
151 
#define MOVE_SF_BYTE0(D) m##D##c1 $4,$f12
152 
#define MOVE_SF_BYTE4(D) m##D##c1 $5,$f14
153 
#define MOVE_SF_BYTE8(D) m##D##c1 $6,$f14
154 
#endif
155 
#define MOVE_SI_BYTE0(D) MOVE_SF_BYTE0(D)
156 
 
157 
#if defined(__mips64)
158 
#define MOVE_DF_BYTE0(D) dm##D##c1 $4,$f12
159 
#define MOVE_DF_BYTE8(D) dm##D##c1 $5,$f13
160 
#define MOVE_DF_RET(D, T) DELAY##D (T, dm##D##c1 $2,$f0)
161 
#define MOVE_DC_RET(D, T) dm##D##c1 $3,$f1; MOVE_DF_RET (D, T)
162 
#elif __mips_fpr == 64 && defined(__MIPSEB__)
163 
#define MOVE_DF_BYTE0(D) m##D##c1 $5,$f12; m##D##hc1 $4,$f12
164 
#define MOVE_DF_BYTE8(D) m##D##c1 $7,$f14; m##D##hc1 $6,$f14
165 
#define MOVE_DF_RET(D, T) m##D##c1 $3,$f0; DELAY##D (T, m##D##hc1 $2,$f0)
166 
#define MOVE_DC_RET(D, T) m##D##c1 $5,$f1; m##D##hc1 $4,$f1; MOVE_DF_RET (D, T)
167 
#elif __mips_fpr == 64
168 
#define MOVE_DF_BYTE0(D) m##D##c1 $4,$f12; m##D##hc1 $5,$f12
169 
#define MOVE_DF_BYTE8(D) m##D##c1 $6,$f14; m##D##hc1 $7,$f14
170 
#define MOVE_DF_RET(D, T) m##D##c1 $2,$f0; DELAY##D (T, m##D##hc1 $3,$f0)
171 
#define MOVE_DC_RET(D, T) m##D##c1 $4,$f1; m##D##hc1 $5,$f1; MOVE_DF_RET (D, T)
172 
#elif defined(__MIPSEB__)
173 
/* FPRs are little-endian.  */
174 
#define MOVE_DF_BYTE0(D) m##D##c1 $4,$f13; m##D##c1 $5,$f12
175 
#define MOVE_DF_BYTE8(D) m##D##c1 $6,$f15; m##D##c1 $7,$f14
176 
#define MOVE_DF_RET(D, T) m##D##c1 $2,$f1; DELAY##D (T, m##D##c1 $3,$f0)
177 
#define MOVE_DC_RET(D, T) m##D##c1 $4,$f3; m##D##c1 $5,$f2; MOVE_DF_RET (D, T)
178 
#else
179 
#define MOVE_DF_BYTE0(D) m##D##c1 $4,$f12; m##D##c1 $5,$f13
180 
#define MOVE_DF_BYTE8(D) m##D##c1 $6,$f14; m##D##c1 $7,$f15
181 
#define MOVE_DF_RET(D, T) m##D##c1 $2,$f0; DELAY##D (T, m##D##c1 $3,$f1)
182 
#define MOVE_DC_RET(D, T) m##D##c1 $4,$f2; m##D##c1 $5,$f3; MOVE_DF_RET (D, T)
183 
#endif
184 
 
185 
/* Single-precision math.  */
186 
 
187 
/* Define a function NAME that loads two single-precision values,
188 
   performs FPU operation OPCODE on them, and returns the single-
189 
   precision result.  */
190 
 
191 
#define OPSF3(NAME, OPCODE)     \
192 
STARTFN (NAME);                 \
193 
        MOVE_SF_BYTE0 (t);      \
194 
        MOVE_SF_BYTE4 (t);      \
195 
        OPCODE  RET,ARG1,ARG2;  \
196 
        MOVE_SF_RET (f, $31);   \
197 
        ENDFN (NAME)
198 
 
199 
#ifdef L_m16addsf3
200 
OPSF3 (__mips16_addsf3, add.s)
201 
#endif
202 
#ifdef L_m16subsf3
203 
OPSF3 (__mips16_subsf3, sub.s)
204 
#endif
205 
#ifdef L_m16mulsf3
206 
OPSF3 (__mips16_mulsf3, mul.s)
207 
#endif
208 
#ifdef L_m16divsf3
209 
OPSF3 (__mips16_divsf3, div.s)
210 
#endif
211 
 
212 
/* Define a function NAME that loads a single-precision value,
213 
   performs FPU operation OPCODE on it, and returns the single-
214 
   precision result.  */
215 
 
216 
#define OPSF2(NAME, OPCODE)     \
217 
STARTFN (NAME);                 \
218 
        MOVE_SF_BYTE0 (t);      \
219 
        OPCODE  RET,ARG1;       \
220 
        MOVE_SF_RET (f, $31);   \
221 
        ENDFN (NAME)
222 
 
223 
#ifdef L_m16negsf2
224 
OPSF2 (__mips16_negsf2, neg.s)
225 
#endif
226 
#ifdef L_m16abssf2
227 
OPSF2 (__mips16_abssf2, abs.s)
228 
#endif
229 
 
230 
/* Single-precision comparisons.  */
231 
 
232 
/* Define a function NAME that loads two single-precision values,
233 
   performs floating point comparison OPCODE, and returns TRUE or
234 
   FALSE depending on the result.  */
235 
 
236 
#define CMPSF(NAME, OPCODE, TRUE, FALSE)        \
237 
STARTFN (NAME);                                 \
238 
        MOVE_SF_BYTE0 (t);                      \
239 
        MOVE_SF_BYTE4 (t);                      \
240 
        OPCODE  ARG1,ARG2;                      \
241 
        li      $2,TRUE;                        \
242 
        bc1t    1f;                             \
243 
        li      $2,FALSE;                       \
244 
1:;                                             \
245 
        j       $31;                            \
246 
        ENDFN (NAME)
247 
 
248 
/* Like CMPSF, but reverse the comparison operands.  */
249 
 
250 
#define REVCMPSF(NAME, OPCODE, TRUE, FALSE)     \
251 
STARTFN (NAME);                                 \
252 
        MOVE_SF_BYTE0 (t);                      \
253 
        MOVE_SF_BYTE4 (t);                      \
254 
        OPCODE  ARG2,ARG1;                      \
255 
        li      $2,TRUE;                        \
256 
        bc1t    1f;                             \
257 
        li      $2,FALSE;                       \
258 
1:;                                             \
259 
        j       $31;                            \
260 
        ENDFN (NAME)
261 
 
262 
#ifdef L_m16eqsf2
263 
CMPSF (__mips16_eqsf2, c.eq.s, 0, 1)
264 
#endif
265 
#ifdef L_m16nesf2
266 
CMPSF (__mips16_nesf2, c.eq.s, 0, 1)
267 
#endif
268 
#ifdef L_m16gtsf2
269 
REVCMPSF (__mips16_gtsf2, c.lt.s, 1, 0)
270 
#endif
271 
#ifdef L_m16gesf2
272 
REVCMPSF (__mips16_gesf2, c.le.s, 0, -1)
273 
#endif
274 
#ifdef L_m16lesf2
275 
CMPSF (__mips16_lesf2, c.le.s, 0, 1)
276 
#endif
277 
#ifdef L_m16ltsf2
278 
CMPSF (__mips16_ltsf2, c.lt.s, -1, 0)
279 
#endif
280 
#ifdef L_m16unordsf2
281 
CMPSF(__mips16_unordsf2, c.un.s, 1, 0)
282 
#endif
283 
 
284 
 
285 
/* Single-precision conversions.  */
286 
 
287 
#ifdef L_m16fltsisf
288 
STARTFN (__mips16_floatsisf)
289 
        MOVE_SF_BYTE0 (t)
290 
        cvt.s.w RET,ARG1
291 
        MOVE_SF_RET (f, $31)
292 
        ENDFN (__mips16_floatsisf)
293 
#endif
294 
 
295 
#ifdef L_m16fltunsisf
296 
STARTFN (__mips16_floatunsisf)
297 
        .set    noreorder
298 
        bltz    $4,1f
299 
        MOVE_SF_BYTE0 (t)
300 
        .set    reorder
301 
        cvt.s.w RET,ARG1
302 
        MOVE_SF_RET (f, $31)
303 
1:
304 
        and     $2,$4,1
305 
        srl     $3,$4,1
306 
        or      $2,$2,$3
307 
        mtc1    $2,RET
308 
        cvt.s.w RET,RET
309 
        add.s   RET,RET,RET
310 
        MOVE_SF_RET (f, $31)
311 
        ENDFN (__mips16_floatunsisf)
312 
#endif
313 
 
314 
#ifdef L_m16fix_truncsfsi
315 
STARTFN (__mips16_fix_truncsfsi)
316 
        MOVE_SF_BYTE0 (t)
317 
        trunc.w.s RET,ARG1,$4
318 
        MOVE_SI_RET (f, $31)
319 
        ENDFN (__mips16_fix_truncsfsi)
320 
#endif
321 
 
322 
#if !defined(__mips_single_float) && !defined(__SINGLE_FLOAT)
323 
 
324 
/* Double-precision math.  */
325 
 
326 
/* Define a function NAME that loads two double-precision values,
327 
   performs FPU operation OPCODE on them, and returns the double-
328 
   precision result.  */
329 
 
330 
#define OPDF3(NAME, OPCODE)     \
331 
STARTFN (NAME);                 \
332 
        MOVE_DF_BYTE0 (t);      \
333 
        MOVE_DF_BYTE8 (t);      \
334 
        OPCODE RET,ARG1,ARG2;   \
335 
        MOVE_DF_RET (f, $31);   \
336 
        ENDFN (NAME)
337 
 
338 
#ifdef L_m16adddf3
339 
OPDF3 (__mips16_adddf3, add.d)
340 
#endif
341 
#ifdef L_m16subdf3
342 
OPDF3 (__mips16_subdf3, sub.d)
343 
#endif
344 
#ifdef L_m16muldf3
345 
OPDF3 (__mips16_muldf3, mul.d)
346 
#endif
347 
#ifdef L_m16divdf3
348 
OPDF3 (__mips16_divdf3, div.d)
349 
#endif
350 
 
351 
/* Define a function NAME that loads a double-precision value,
352 
   performs FPU operation OPCODE on it, and returns the double-
353 
   precision result.  */
354 
 
355 
#define OPDF2(NAME, OPCODE)     \
356 
STARTFN (NAME);                 \
357 
        MOVE_DF_BYTE0 (t);      \
358 
        OPCODE RET,ARG1;        \
359 
        MOVE_DF_RET (f, $31);   \
360 
        ENDFN (NAME)
361 
 
362 
#ifdef L_m16negdf2
363 
OPDF2 (__mips16_negdf2, neg.d)
364 
#endif
365 
#ifdef L_m16absdf2
366 
OPDF2 (__mips16_absdf2, abs.d)
367 
#endif
368 
 
369 
/* Conversions between single and double precision.  */
370 
 
371 
#ifdef L_m16extsfdf2
372 
STARTFN (__mips16_extendsfdf2)
373 
        MOVE_SF_BYTE0 (t)
374 
        cvt.d.s RET,ARG1
375 
        MOVE_DF_RET (f, $31)
376 
        ENDFN (__mips16_extendsfdf2)
377 
#endif
378 
 
379 
#ifdef L_m16trdfsf2
380 
STARTFN (__mips16_truncdfsf2)
381 
        MOVE_DF_BYTE0 (t)
382 
        cvt.s.d RET,ARG1
383 
        MOVE_SF_RET (f, $31)
384 
        ENDFN (__mips16_truncdfsf2)
385 
#endif
386 
 
387 
/* Double-precision comparisons.  */
388 
 
389 
/* Define a function NAME that loads two double-precision values,
390 
   performs floating point comparison OPCODE, and returns TRUE or
391 
   FALSE depending on the result.  */
392 
 
393 
#define CMPDF(NAME, OPCODE, TRUE, FALSE)        \
394 
STARTFN (NAME);                                 \
395 
        MOVE_DF_BYTE0 (t);                      \
396 
        MOVE_DF_BYTE8 (t);                      \
397 
        OPCODE  ARG1,ARG2;                      \
398 
        li      $2,TRUE;                        \
399 
        bc1t    1f;                             \
400 
        li      $2,FALSE;                       \
401 
1:;                                             \
402 
        j       $31;                            \
403 
        ENDFN (NAME)
404 
 
405 
/* Like CMPDF, but reverse the comparison operands.  */
406 
 
407 
#define REVCMPDF(NAME, OPCODE, TRUE, FALSE)     \
408 
STARTFN (NAME);                                 \
409 
        MOVE_DF_BYTE0 (t);                      \
410 
        MOVE_DF_BYTE8 (t);                      \
411 
        OPCODE  ARG2,ARG1;                      \
412 
        li      $2,TRUE;                        \
413 
        bc1t    1f;                             \
414 
        li      $2,FALSE;                       \
415 
1:;                                             \
416 
        j       $31;                            \
417 
        ENDFN (NAME)
418 
 
419 
#ifdef L_m16eqdf2
420 
CMPDF (__mips16_eqdf2, c.eq.d, 0, 1)
421 
#endif
422 
#ifdef L_m16nedf2
423 
CMPDF (__mips16_nedf2, c.eq.d, 0, 1)
424 
#endif
425 
#ifdef L_m16gtdf2
426 
REVCMPDF (__mips16_gtdf2, c.lt.d, 1, 0)
427 
#endif
428 
#ifdef L_m16gedf2
429 
REVCMPDF (__mips16_gedf2, c.le.d, 0, -1)
430 
#endif
431 
#ifdef L_m16ledf2
432 
CMPDF (__mips16_ledf2, c.le.d, 0, 1)
433 
#endif
434 
#ifdef L_m16ltdf2
435 
CMPDF (__mips16_ltdf2, c.lt.d, -1, 0)
436 
#endif
437 
#ifdef L_m16unorddf2
438 
CMPDF(__mips16_unorddf2, c.un.d, 1, 0)
439 
#endif
440 
 
441 
/* Double-precision conversions.  */
442 
 
443 
#ifdef L_m16fltsidf
444 
STARTFN (__mips16_floatsidf)
445 
        MOVE_SI_BYTE0 (t)
446 
        cvt.d.w RET,ARG1
447 
        MOVE_DF_RET (f, $31)
448 
        ENDFN (__mips16_floatsidf)
449 
#endif
450 
 
451 
#ifdef L_m16fltunsidf
452 
STARTFN (__mips16_floatunsidf)
453 
        MOVE_SI_BYTE0 (t)
454 
        cvt.d.w RET,ARG1
455 
        bgez    $4,1f
456 
        li.d    ARG1, 4.294967296e+9
457 
        add.d   RET, RET, ARG1
458 
1:      MOVE_DF_RET (f, $31)
459 
        ENDFN (__mips16_floatunsidf)
460 
#endif
461 
 
462 
#ifdef L_m16fix_truncdfsi
463 
STARTFN (__mips16_fix_truncdfsi)
464 
        MOVE_DF_BYTE0 (t)
465 
        trunc.w.d RET,ARG1,$4
466 
        MOVE_SI_RET (f, $31)
467 
        ENDFN (__mips16_fix_truncdfsi)
468 
#endif
469 
#endif /* !__mips_single_float */
470 
 
471 
/* Define a function NAME that moves a return value of mode MODE from
472 
   FPRs to GPRs.  */
473 
 
474 
#define RET_FUNCTION(NAME, MODE)        \
475 
STARTFN (NAME);                         \
476 
        MOVE_##MODE##_RET (t, $31);     \
477 
        ENDFN (NAME)
478 
 
479 
#ifdef L_m16retsf
480 
RET_FUNCTION (__mips16_ret_sf, SF)
481 
#endif
482 
 
483 
#ifdef L_m16retsc
484 
RET_FUNCTION (__mips16_ret_sc, SC)
485 
#endif
486 
 
487 
#if !defined(__mips_single_float) && !defined(__SINGLE_FLOAT)
488 
#ifdef L_m16retdf
489 
RET_FUNCTION (__mips16_ret_df, DF)
490 
#endif
491 
 
492 
#ifdef L_m16retdc
493 
RET_FUNCTION (__mips16_ret_dc, DC)
494 
#endif
495 
#endif /* !__mips_single_float */
496 
 
497 
/* STUB_ARGS_X copies the arguments from GPRs to FPRs for argument
498 
   code X.  X is calculated as ARG1 + ARG2 * 4, where ARG1 and ARG2
499 
   classify the first and second arguments as follows:
500 
 
501 
        1: a single-precision argument
502 
        2: a double-precision argument
503 
        0: no argument, or not one of the above.  */
504 
 
505 
#define STUB_ARGS_0                                             /* () */
506 
#define STUB_ARGS_1 MOVE_SF_BYTE0 (t)                           /* (sf) */
507 
#define STUB_ARGS_5 MOVE_SF_BYTE0 (t); MOVE_SF_BYTE4 (t)        /* (sf, sf) */
508 
#define STUB_ARGS_9 MOVE_SF_BYTE0 (t); MOVE_DF_BYTE8 (t)        /* (sf, df) */
509 
#define STUB_ARGS_2 MOVE_DF_BYTE0 (t)                           /* (df) */
510 
#define STUB_ARGS_6 MOVE_DF_BYTE0 (t); MOVE_SF_BYTE8 (t)        /* (df, sf) */
511 
#define STUB_ARGS_10 MOVE_DF_BYTE0 (t); MOVE_DF_BYTE8 (t)       /* (df, df) */
512 
 
513 
/* These functions are used by 16-bit code when calling via a function
514 
   pointer.  They must copy the floating point arguments from the GPRs
515 
   to FPRs and then call function $2.  */
516 
 
517 
#define CALL_STUB_NO_RET(NAME, CODE)    \
518 
STARTFN (NAME);                         \
519 
        STUB_ARGS_##CODE;               \
520 
        .set    noreorder;              \
521 
        jr      $2;                     \
522 
        move    $25,$2;                 \
523 
        .set    reorder;                \
524 
        ENDFN (NAME)
525 
 
526 
#ifdef L_m16stub1
527 
CALL_STUB_NO_RET (__mips16_call_stub_1, 1)
528 
#endif
529 
 
530 
#ifdef L_m16stub5
531 
CALL_STUB_NO_RET (__mips16_call_stub_5, 5)
532 
#endif
533 
 
534 
#if !defined(__mips_single_float) && !defined(__SINGLE_FLOAT)
535 
 
536 
#ifdef L_m16stub2
537 
CALL_STUB_NO_RET (__mips16_call_stub_2, 2)
538 
#endif
539 
 
540 
#ifdef L_m16stub6
541 
CALL_STUB_NO_RET (__mips16_call_stub_6, 6)
542 
#endif
543 
 
544 
#ifdef L_m16stub9
545 
CALL_STUB_NO_RET (__mips16_call_stub_9, 9)
546 
#endif
547 
 
548 
#ifdef L_m16stub10
549 
CALL_STUB_NO_RET (__mips16_call_stub_10, 10)
550 
#endif
551 
#endif /* !__mips_single_float */
552 
 
553 
/* Now we have the same set of functions, except that this time the
554 
   function being called returns an SFmode, SCmode, DFmode or DCmode
555 
   value; we need to instantiate a set for each case.  The calling
556 
   function will arrange to preserve $18, so these functions are free
557 
   to use it to hold the return address.
558 
 
559 
   Note that we do not know whether the function we are calling is 16
560 
   bit or 32 bit.  However, it does not matter, because 16-bit
561 
   functions always return floating point values in both the gp and
562 
   the fp regs.  It would be possible to check whether the function
563 
   being called is 16 bits, in which case the copy is unnecessary;
564 
   however, it's faster to always do the copy.  */
565 
 
566 
#define CALL_STUB_RET(NAME, CODE, MODE) \
567 
STARTFN (NAME);                         \
568 
        move    $18,$31;                \
569 
        STUB_ARGS_##CODE;               \
570 
        .set    noreorder;              \
571 
        jalr    $2;                     \
572 
        move    $25,$2;                 \
573 
        .set    reorder;                \
574 
        MOVE_##MODE##_RET (f, $18);     \
575 
        ENDFN (NAME)
576 
 
577 
/* First, instantiate the single-float set.  */
578 
 
579 
#ifdef L_m16stubsf0
580 
CALL_STUB_RET (__mips16_call_stub_sf_0, 0, SF)
581 
#endif
582 
 
583 
#ifdef L_m16stubsf1
584 
CALL_STUB_RET (__mips16_call_stub_sf_1, 1, SF)
585 
#endif
586 
 
587 
#ifdef L_m16stubsf5
588 
CALL_STUB_RET (__mips16_call_stub_sf_5, 5, SF)
589 
#endif
590 
 
591 
#if !defined(__mips_single_float) && !defined(__SINGLE_FLOAT)
592 
#ifdef L_m16stubsf2
593 
CALL_STUB_RET (__mips16_call_stub_sf_2, 2, SF)
594 
#endif
595 
 
596 
#ifdef L_m16stubsf6
597 
CALL_STUB_RET (__mips16_call_stub_sf_6, 6, SF)
598 
#endif
599 
 
600 
#ifdef L_m16stubsf9
601 
CALL_STUB_RET (__mips16_call_stub_sf_9, 9, SF)
602 
#endif
603 
 
604 
#ifdef L_m16stubsf10
605 
CALL_STUB_RET (__mips16_call_stub_sf_10, 10, SF)
606 
#endif
607 
#endif /* !__mips_single_float */
608 
 
609 
 
610 
/* Now we have the same set of functions again, except that this time
611 
   the function being called returns an DFmode value.  */
612 
 
613 
#if !defined(__mips_single_float) && !defined(__SINGLE_FLOAT)
614 
#ifdef L_m16stubdf0
615 
CALL_STUB_RET (__mips16_call_stub_df_0, 0, DF)
616 
#endif
617 
 
618 
#ifdef L_m16stubdf1
619 
CALL_STUB_RET (__mips16_call_stub_df_1, 1, DF)
620 
#endif
621 
 
622 
#ifdef L_m16stubdf5
623 
CALL_STUB_RET (__mips16_call_stub_df_5, 5, DF)
624 
#endif
625 
 
626 
#ifdef L_m16stubdf2
627 
CALL_STUB_RET (__mips16_call_stub_df_2, 2, DF)
628 
#endif
629 
 
630 
#ifdef L_m16stubdf6
631 
CALL_STUB_RET (__mips16_call_stub_df_6, 6, DF)
632 
#endif
633 
 
634 
#ifdef L_m16stubdf9
635 
CALL_STUB_RET (__mips16_call_stub_df_9, 9, DF)
636 
#endif
637 
 
638 
#ifdef L_m16stubdf10
639 
CALL_STUB_RET (__mips16_call_stub_df_10, 10, DF)
640 
#endif
641 
#endif /* !__mips_single_float */
642 
 
643 
 
644 
/* Ho hum.  Here we have the same set of functions again, this time
645 
   for when the function being called returns an SCmode value.  */
646 
 
647 
#ifdef L_m16stubsc0
648 
CALL_STUB_RET (__mips16_call_stub_sc_0, 0, SC)
649 
#endif
650 
 
651 
#ifdef L_m16stubsc1
652 
CALL_STUB_RET (__mips16_call_stub_sc_1, 1, SC)
653 
#endif
654 
 
655 
#ifdef L_m16stubsc5
656 
CALL_STUB_RET (__mips16_call_stub_sc_5, 5, SC)
657 
#endif
658 
 
659 
#if !defined(__mips_single_float) && !defined(__SINGLE_FLOAT)
660 
#ifdef L_m16stubsc2
661 
CALL_STUB_RET (__mips16_call_stub_sc_2, 2, SC)
662 
#endif
663 
 
664 
#ifdef L_m16stubsc6
665 
CALL_STUB_RET (__mips16_call_stub_sc_6, 6, SC)
666 
#endif
667 
 
668 
#ifdef L_m16stubsc9
669 
CALL_STUB_RET (__mips16_call_stub_sc_9, 9, SC)
670 
#endif
671 
 
672 
#ifdef L_m16stubsc10
673 
CALL_STUB_RET (__mips16_call_stub_sc_10, 10, SC)
674 
#endif
675 
#endif /* !__mips_single_float */
676 
 
677 
 
678 
/* Finally, another set of functions for DCmode.  */
679 
 
680 
#if !defined(__mips_single_float) && !defined(__SINGLE_FLOAT)
681 
#ifdef L_m16stubdc0
682 
CALL_STUB_RET (__mips16_call_stub_dc_0, 0, DC)
683 
#endif
684 
 
685 
#ifdef L_m16stubdc1
686 
CALL_STUB_RET (__mips16_call_stub_dc_1, 1, DC)
687 
#endif
688 
 
689 
#ifdef L_m16stubdc5
690 
CALL_STUB_RET (__mips16_call_stub_dc_5, 5, DC)
691 
#endif
692 
 
693 
#ifdef L_m16stubdc2
694 
CALL_STUB_RET (__mips16_call_stub_dc_2, 2, DC)
695 
#endif
696 
 
697 
#ifdef L_m16stubdc6
698 
CALL_STUB_RET (__mips16_call_stub_dc_6, 6, DC)
699 
#endif
700 
 
701 
#ifdef L_m16stubdc9
702 
CALL_STUB_RET (__mips16_call_stub_dc_9, 9, DC)
703 
#endif
704 
 
705 
#ifdef L_m16stubdc10
706 
CALL_STUB_RET (__mips16_call_stub_dc_10, 10, DC)
707 
#endif
708 
#endif /* !__mips_single_float */
709 
#endif

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