1 /* src/vm/jit/powerpc/codegen.h - code generation macros and definitions for
4 Copyright (C) 1996-2005, 2006 R. Grafl, A. Krall, C. Kruegel,
5 C. Oates, R. Obermaisser, M. Platter, M. Probst, S. Ring,
6 E. Steiner, C. Thalinger, D. Thuernbeck, P. Tomsich, C. Ullrich,
7 J. Wenninger, Institut f. Computersprachen - TU Wien
9 This file is part of CACAO.
11 This program is free software; you can redistribute it and/or
12 modify it under the terms of the GNU General Public License as
13 published by the Free Software Foundation; either version 2, or (at
14 your option) any later version.
16 This program is distributed in the hope that it will be useful, but
17 WITHOUT ANY WARRANTY; without even the implied warranty of
18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19 General Public License for more details.
21 You should have received a copy of the GNU General Public License
22 along with this program; if not, write to the Free Software
23 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
26 Contact: cacao@cacaojvm.org
28 Authors: Andreas Krall
31 Changes: Christian Thalinger
34 $Id: codegen.h 4898 2006-05-10 15:51:46Z twisti $
46 #include "vm/global.h"
47 #include "vm/jit/jit.h"
48 #include "vm/jit/reg.h"
51 /* additional functions and macros to generate code ***************************/
53 /* gen_nullptr_check(objreg) */
55 #define gen_nullptr_check(objreg) \
59 codegen_add_nullpointerexception_ref(cd); \
62 #define gen_bound_check \
64 M_ILD(REG_ITMP3, s1, OFFSET(java_arrayheader, size));\
65 M_CMPU(s2, REG_ITMP3);\
67 codegen_add_arrayindexoutofboundsexception_ref(cd, s2); \
71 /* MCODECHECK(icnt) */
73 #define MCODECHECK(icnt) \
75 if ((cd->mcodeptr + (icnt) * 4) > cd->mcodeend) \
76 codegen_increase(cd); \
81 generates an integer-move from register a to b.
82 if a and b are the same int-register, no code will be generated.
85 #define M_INTMOVE(a,b) \
92 #define M_LNGMOVE(a,b) \
94 if (GET_HIGH_REG(a) == GET_LOW_REG(b)) { \
95 assert((GET_LOW_REG(a) != GET_HIGH_REG(b))); \
96 M_INTMOVE(GET_HIGH_REG(a), GET_HIGH_REG(b)); \
97 M_INTMOVE(GET_LOW_REG(a), GET_LOW_REG(b)); \
99 M_INTMOVE(GET_LOW_REG(a), GET_LOW_REG(b)); \
100 M_INTMOVE(GET_HIGH_REG(a), GET_HIGH_REG(b)); \
106 generates a floating-point-move from register a to b.
107 if a and b are the same float-register, no code will be generated
110 #define M_FLTMOVE(a,b) \
118 #define M_COPY(s,d) emit_copy(jd, iptr, (s), (d))
119 #define ICONST(d,c) emit_iconst(cd, (d), (c))
121 #define LCONST(reg,c) \
122 ICONST(GET_HIGH_REG((reg)), (s4) ((s8) (c) >> 32)); \
123 ICONST(GET_LOW_REG((reg)), (s4) ((s8) (c)));
126 #define ALIGNCODENOP \
127 if ((s4) ((ptrint) cd->mcodeptr & 7)) { \
132 /* macros to create code ******************************************************/
134 #define M_OP3(opcode,y,oe,rc,d,a,b) \
136 *((u4 *) cd->mcodeptr) = (((opcode) << 26) | ((d) << 21) | ((a) << 16) | ((b) << 11) | ((oe) << 10) | ((y) << 1) | (rc)); \
140 #define M_OP4(x,y,rc,d,a,b,c) \
142 *((u4 *) cd->mcodeptr) = (((x) << 26) | ((d) << 21) | ((a) << 16) | ((b) << 11) | ((c) << 6) | ((y) << 1) | (rc)); \
146 #define M_OP2_IMM(x,d,a,i) \
148 *((u4 *) cd->mcodeptr) = (((x) << 26) | ((d) << 21) | ((a) << 16) | ((i) & 0xffff)); \
152 #define M_BRMASK 0x0000fffc /* (((1 << 16) - 1) & ~3) */
153 #define M_BRAMASK 0x03fffffc /* (((1 << 26) - 1) & ~3) */
155 #define M_BRA(x,i,a,l) \
157 *((u4 *) cd->mcodeptr) = (((x) << 26) | ((((i) * 4) + 4) & M_BRAMASK) | ((a) << 1) | (l)); \
161 #define M_BRAC(x,bo,bi,i,a,l) \
163 *((u4 *) cd->mcodeptr) = (((x) << 26) | ((bo) << 21) | ((bi) << 16) | (((i) * 4 + 4) & M_BRMASK) | ((a) << 1) | (l)); \
168 /* instruction macros *********************************************************/
170 #define M_IADD(a,b,c) M_OP3(31, 266, 0, 0, c, a, b)
171 #define M_IADD_IMM(a,b,c) M_OP2_IMM(14, c, a, b)
172 #define M_ADDC(a,b,c) M_OP3(31, 10, 0, 0, c, a, b)
173 #define M_ADDIC(a,b,c) M_OP2_IMM(12, c, a, b)
174 #define M_ADDICTST(a,b,c) M_OP2_IMM(13, c, a, b)
175 #define M_ADDE(a,b,c) M_OP3(31, 138, 0, 0, c, a, b)
176 #define M_ADDZE(a,b) M_OP3(31, 202, 0, 0, b, a, 0)
177 #define M_ADDME(a,b) M_OP3(31, 234, 0, 0, b, a, 0)
178 #define M_ISUB(a,b,c) M_OP3(31, 40, 0, 0, c, b, a)
179 #define M_ISUBTST(a,b,c) M_OP3(31, 40, 0, 1, c, b, a)
180 #define M_SUBC(a,b,c) M_OP3(31, 8, 0, 0, c, b, a)
181 #define M_SUBIC(a,b,c) M_OP2_IMM(8, c, b, a)
182 #define M_SUBE(a,b,c) M_OP3(31, 136, 0, 0, c, b, a)
183 #define M_SUBZE(a,b) M_OP3(31, 200, 0, 0, b, a, 0)
184 #define M_SUBME(a,b) M_OP3(31, 232, 0, 0, b, a, 0)
186 #define M_AND(a,b,c) M_OP3(31, 28, 0, 0, a, c, b)
187 #define M_AND_IMM(a,b,c) M_OP2_IMM(28, a, c, b)
188 #define M_ANDIS(a,b,c) M_OP2_IMM(29, a, c, b)
189 #define M_OR(a,b,c) M_OP3(31, 444, 0, 0, a, c, b)
190 #define M_OR_TST(a,b,c) M_OP3(31, 444, 0, 1, a, c, b)
191 #define M_OR_IMM(a,b,c) M_OP2_IMM(24, a, c, b)
192 #define M_ORIS(a,b,c) M_OP2_IMM(25, a, c, b)
193 #define M_XOR(a,b,c) M_OP3(31, 316, 0, 0, a, c, b)
194 #define M_XOR_IMM(a,b,c) M_OP2_IMM(26, a, c, b)
195 #define M_XORIS(a,b,c) M_OP2_IMM(27, a, c, b)
197 #define M_SLL(a,b,c) M_OP3(31, 24, 0, 0, a, c, b)
198 #define M_SRL(a,b,c) M_OP3(31, 536, 0, 0, a, c, b)
199 #define M_SRA(a,b,c) M_OP3(31, 792, 0, 0, a, c, b)
200 #define M_SRA_IMM(a,b,c) M_OP3(31, 824, 0, 0, a, c, b)
202 #define M_IMUL(a,b,c) M_OP3(31, 235, 0, 0, c, a, b)
203 #define M_IMUL_IMM(a,b,c) M_OP2_IMM(7, c, a, b)
204 #define M_IDIV(a,b,c) M_OP3(31, 491, 0, 0, c, a, b)
206 #define M_NEG(a,b) M_OP3(31, 104, 0, 0, b, a, 0)
207 #define M_NOT(a,b) M_OP3(31, 124, 0, 0, a, b, a)
209 #define M_SUBFIC(a,b,c) M_OP2_IMM(8, c, a, b)
210 #define M_SUBFZE(a,b) M_OP3(31, 200, 0, 0, b, a, 0)
211 #define M_RLWINM(a,b,c,d,e) M_OP4(21, d, 0, a, e, b, c)
212 #define M_ADDZE(a,b) M_OP3(31, 202, 0, 0, b, a, 0)
213 #define M_SLL_IMM(a,b,c) M_RLWINM(a,b,0,31-(b),c)
214 #define M_SRL_IMM(a,b,c) M_RLWINM(a,32-(b),b,31,c)
215 #define M_ADDIS(a,b,c) M_OP2_IMM(15, c, a, b)
216 #define M_STFIWX(a,b,c) M_OP3(31, 983, 0, 0, a, b, c)
217 #define M_LWZX(a,b,c) M_OP3(31, 23, 0, 0, a, b, c)
218 #define M_LHZX(a,b,c) M_OP3(31, 279, 0, 0, a, b, c)
219 #define M_LHAX(a,b,c) M_OP3(31, 343, 0, 0, a, b, c)
220 #define M_LBZX(a,b,c) M_OP3(31, 87, 0, 0, a, b, c)
221 #define M_LFSX(a,b,c) M_OP3(31, 535, 0, 0, a, b, c)
222 #define M_LFDX(a,b,c) M_OP3(31, 599, 0, 0, a, b, c)
223 #define M_STWX(a,b,c) M_OP3(31, 151, 0, 0, a, b, c)
224 #define M_STHX(a,b,c) M_OP3(31, 407, 0, 0, a, b, c)
225 #define M_STBX(a,b,c) M_OP3(31, 215, 0, 0, a, b, c)
226 #define M_STFSX(a,b,c) M_OP3(31, 663, 0, 0, a, b, c)
227 #define M_STFDX(a,b,c) M_OP3(31, 727, 0, 0, a, b, c)
229 #define M_STWU_INTERN(a,b,disp) M_OP2_IMM(37,a,b,disp)
231 #define M_STWU(a,b,disp) \
233 s4 lo = (disp) & 0x0000ffff; \
234 s4 hi = ((disp) >> 16); \
235 if (((disp) >= -32678) && ((disp) <= 32767)) { \
236 M_STWU_INTERN(a,b,lo); \
238 M_ADDIS(REG_ZERO,hi,REG_ITMP3); \
239 M_OR_IMM(REG_ITMP3,lo,REG_ITMP3); \
240 M_STWUX(REG_SP,REG_SP,REG_ITMP3); \
244 #define M_STWUX(a,b,c) M_OP3(31,183,0,0,a,b,c)
246 #define M_LDAH(a,b,c) M_ADDIS(b, c, a)
247 #define M_TRAP M_OP3(31, 4, 0, 0, 31, 0, 0)
249 #define M_NOP M_OR_IMM(0, 0, 0)
250 #define M_MOV(a,b) M_OR(a, a, b)
251 #define M_TST(a) M_OP3(31, 444, 0, 1, a, a, a)
253 #define M_DADD(a,b,c) M_OP3(63, 21, 0, 0, c, a, b)
254 #define M_FADD(a,b,c) M_OP3(59, 21, 0, 0, c, a, b)
255 #define M_DSUB(a,b,c) M_OP3(63, 20, 0, 0, c, a, b)
256 #define M_FSUB(a,b,c) M_OP3(59, 20, 0, 0, c, a, b)
257 #define M_DMUL(a,b,c) M_OP4(63, 25, 0, c, a, 0, b)
258 #define M_FMUL(a,b,c) M_OP4(59, 25, 0, c, a, 0, b)
259 #define M_DDIV(a,b,c) M_OP3(63, 18, 0, 0, c, a, b)
260 #define M_FDIV(a,b,c) M_OP3(59, 18, 0, 0, c, a, b)
262 #define M_FABS(a,b) M_OP3(63, 264, 0, 0, b, 0, a)
263 #define M_CVTDL(a,b) M_OP3(63, 14, 0, 0, b, 0, a)
264 #define M_CVTDL_C(a,b) M_OP3(63, 15, 0, 0, b, 0, a)
265 #define M_CVTDF(a,b) M_OP3(63, 12, 0, 0, b, 0, a)
266 #define M_FMOV(a,b) M_OP3(63, 72, 0, 0, b, 0, a)
267 #define M_FMOVN(a,b) M_OP3(63, 40, 0, 0, b, 0, a)
268 #define M_DSQRT(a,b) M_OP3(63, 22, 0, 0, b, 0, a)
269 #define M_FSQRT(a,b) M_OP3(59, 22, 0, 0, b, 0, a)
271 #define M_FCMPU(a,b) M_OP3(63, 0, 0, 0, 0, a, b)
272 #define M_FCMPO(a,b) M_OP3(63, 32, 0, 0, 0, a, b)
274 #define M_BLDU(a,b,c) M_OP2_IMM(34, a, b, c)
275 #define M_SLDU(a,b,c) M_OP2_IMM(40, a, b, c)
277 #define M_ILD_INTERN(a,b,disp) M_OP2_IMM(32,a,b,disp)
279 #define M_ILD(a,b,disp) \
281 s4 lo = (short) (disp); \
282 s4 hi = (short) (((disp) - lo) >> 16); \
284 M_ILD_INTERN(a,b,lo); \
287 M_ILD_INTERN(a,a,lo); \
291 #define M_LLD_INTERN(a,b,disp) \
293 M_ILD_INTERN(GET_HIGH_REG(a), b, disp); \
294 M_ILD_INTERN(GET_LOW_REG(a), b, disp + 4); \
297 #define M_LLD(a,b,disp) \
299 s4 lo = (short) (disp); \
300 s4 hi = (short) (((disp) - lo) >> 16); \
302 M_LLD_INTERN(a,b,lo); \
305 M_LLD_INTERN(a,GET_LOW_REG(a),lo); \
309 #define M_ALD_INTERN(a,b,disp) M_ILD_INTERN(a,b,disp)
310 #define M_ALD(a,b,disp) M_ILD(a,b,disp)
312 #define M_BST(a,b,c) M_OP2_IMM(38, a, b, c)
313 #define M_SST(a,b,c) M_OP2_IMM(44, a, b, c)
315 #define M_IST_INTERN(a,b,disp) M_OP2_IMM(36,a,b,disp)
317 /* Stores with displacement overflow should only happen with PUTFIELD
318 or on the stack. The PUTFIELD instruction does not use REG_ITMP3
319 and a reg_of_var call should not use REG_ITMP3!!! */
321 #define M_IST(a,b,disp) \
323 s4 lo = (short) (disp); \
324 s4 hi = (short) (((disp) - lo) >> 16); \
326 M_IST_INTERN(a,b,lo); \
328 M_ADDIS(b,hi,REG_ITMP3); \
329 M_IST_INTERN(a,REG_ITMP3,lo); \
333 #define M_LST_INTERN(a,b,disp) \
335 M_IST_INTERN(GET_HIGH_REG(a), b, disp); \
336 M_IST_INTERN(GET_LOW_REG(a), b, disp + 4); \
339 #define M_LST(a,b,disp) \
341 s4 lo = (short) (disp); \
342 s4 hi = (short) (((disp) - lo) >> 16); \
344 M_LST_INTERN(a,b,lo); \
346 M_ADDIS(b,hi,REG_ITMP3); \
347 M_LST_INTERN(a,REG_ITMP3, lo); \
351 #define M_AST_INTERN(a,b,disp) M_IST_INTERN(a,b,disp)
352 #define M_AST(a,b,disp) M_IST(a,b,disp)
354 #define M_BSEXT(a,b) M_OP3(31, 954, 0, 0, a, b, 0)
355 #define M_SSEXT(a,b) M_OP3(31, 922, 0, 0, a, b, 0)
356 #define M_CZEXT(a,b) M_RLWINM(a,0,16,31,b)
358 #define M_BR(a) M_BRA(18, a, 0, 0)
359 #define M_BL(a) M_BRA(18, a, 0, 1)
360 #define M_RET M_OP3(19, 16, 0, 0, 20, 0, 0)
361 #define M_JSR M_OP3(19, 528, 0, 1, 20, 0, 0)
362 #define M_RTS M_OP3(19, 528, 0, 0, 20, 0, 0)
364 #define M_CMP(a,b) M_OP3(31, 0, 0, 0, 0, a, b)
365 #define M_CMPU(a,b) M_OP3(31, 32, 0, 0, 0, a, b)
366 #define M_CMPI(a,b) M_OP2_IMM(11, 0, a, b)
367 #define M_CMPUI(a,b) M_OP2_IMM(10, 0, a, b)
369 #define M_BLT(a) M_BRAC(16, 12, 0, a, 0, 0)
370 #define M_BLE(a) M_BRAC(16, 4, 1, a, 0, 0)
371 #define M_BGT(a) M_BRAC(16, 12, 1, a, 0, 0)
372 #define M_BGE(a) M_BRAC(16, 4, 0, a, 0, 0)
373 #define M_BEQ(a) M_BRAC(16, 12, 2, a, 0, 0)
374 #define M_BNE(a) M_BRAC(16, 4, 2, a, 0, 0)
375 #define M_BNAN(a) M_BRAC(16, 12, 3, a, 0, 0)
377 #define M_FLD_INTERN(a,b,disp) M_OP2_IMM(48,a,b,disp)
378 #define M_DLD_INTERN(a,b,disp) M_OP2_IMM(50,a,b,disp)
380 #define M_FLD(a,b,disp) \
382 s4 lo = (short) (disp); \
383 s4 hi = (short) (((disp) - lo) >> 16); \
385 M_FLD_INTERN(a,b,lo); \
387 M_ADDIS(b,hi,REG_ITMP3); \
388 M_FLD_INTERN(a,REG_ITMP3,lo); \
392 #define M_DLD(a,b,disp) \
394 s4 lo = (short) (disp); \
395 s4 hi = (short) (((disp) - lo) >> 16); \
397 M_DLD_INTERN(a,b,lo); \
399 M_ADDIS(b,hi,REG_ITMP3); \
400 M_DLD_INTERN(a,REG_ITMP3,lo); \
404 #define M_FST_INTERN(a,b,disp) M_OP2_IMM(52,a,b,disp)
405 #define M_DST_INTERN(a,b,disp) M_OP2_IMM(54,a,b,disp)
407 #define M_FST(a,b,disp) \
409 s4 lo = (short) (disp); \
410 s4 hi = (short) (((disp) - lo) >> 16); \
412 M_FST_INTERN(a,b,lo); \
414 M_ADDIS(b,hi,REG_ITMP3); \
415 M_FST_INTERN(a,REG_ITMP3,lo); \
419 #define M_DST(a,b,disp) \
421 s4 lo = (short) (disp); \
422 s4 hi = (short) (((disp) - lo) >> 16); \
424 M_DST_INTERN(a,b,lo); \
426 M_ADDIS(b,hi,REG_ITMP3); \
427 M_DST_INTERN(a,REG_ITMP3,lo); \
431 #define M_MFLR(a) M_OP3(31, 339, 0, 0, a, 8, 0)
432 #define M_MFXER(a) M_OP3(31, 339, 0, 0, a, 1, 0)
433 #define M_MFCTR(a) M_OP3(31, 339, 0, 0, a, 9, 0)
434 #define M_MTLR(a) M_OP3(31, 467, 0, 0, a, 8, 0)
435 #define M_MTXER(a) M_OP3(31, 467, 0, 0, a, 1, 0)
436 #define M_MTCTR(a) M_OP3(31, 467, 0, 0, a, 9, 0)
438 #define M_LDA_INTERN(a,b,c) M_IADD_IMM(b, c, a)
440 #define M_LDA(a,b,disp) \
442 s4 lo = (short) (disp); \
443 s4 hi = (short) (((disp) - lo) >> 16); \
445 M_LDA_INTERN(a,b,lo); \
448 M_LDA_INTERN(a,a,lo); \
453 #define M_LDATST(a,b,c) M_ADDICTST(b, c, a)
454 #define M_CLR(a) M_IADD_IMM(0, 0, a)
455 #define M_AADD_IMM(a,b,c) M_IADD_IMM(a, b, c)
458 /* function gen_resolvebranch **************************************************
460 parameters: ip ... pointer to instruction after branch (void*)
461 so ... offset of instruction after branch (s4)
462 to ... offset of branch target (s4)
464 *******************************************************************************/
466 #define gen_resolvebranch(ip,so,to) \
467 *((s4*)(ip)-1)=(*((s4*)(ip)-1) & ~M_BRMASK) | (((s4)((to)-(so))+4)&((((*((s4*)(ip)-1)>>26)&63)==18)?M_BRAMASK:M_BRMASK))
469 #endif /* _CODEGEN_H */
473 * These are local overrides for various environment variables in Emacs.
474 * Please do not remove this and leave it at the end of the file, where
475 * Emacs will automagically detect them.
476 * ---------------------------------------------------------------------
479 * indent-tabs-mode: t