1 /* src/vm/jit/powerpc/codegen.h - code generation macros and definitions for
4 Copyright (C) 1996-2005, 2006, 2007 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 $Id: codegen.h 7596 2007-03-28 21:05:53Z twisti $
38 #include "vm/global.h"
39 #include "vm/jit/jit.h"
40 #include "vm/jit/reg.h"
43 /* additional functions and macros to generate code ***************************/
45 /* MCODECHECK(icnt) */
47 #define MCODECHECK(icnt) \
49 if ((cd->mcodeptr + (icnt) * 4) > cd->mcodeend) \
50 codegen_increase(cd); \
55 generates an integer-move from register a to b.
56 if a and b are the same int-register, no code will be generated.
59 #define M_INTMOVE(a,b) \
66 #define M_LNGMOVE(a,b) \
68 if (GET_HIGH_REG(a) == GET_LOW_REG(b)) { \
69 assert((GET_LOW_REG(a) != GET_HIGH_REG(b))); \
70 M_INTMOVE(GET_HIGH_REG(a), GET_HIGH_REG(b)); \
71 M_INTMOVE(GET_LOW_REG(a), GET_LOW_REG(b)); \
73 M_INTMOVE(GET_LOW_REG(a), GET_LOW_REG(b)); \
74 M_INTMOVE(GET_HIGH_REG(a), GET_HIGH_REG(b)); \
80 generates a floating-point-move from register a to b.
81 if a and b are the same float-register, no code will be generated
84 #define M_FLTMOVE(a,b) \
92 #define ICONST(d,c) emit_iconst(cd, (d), (c))
94 #define LCONST(reg,c) \
95 ICONST(GET_HIGH_REG((reg)), (s4) ((s8) (c) >> 32)); \
96 ICONST(GET_LOW_REG((reg)), (s4) ((s8) (c)));
99 #define ALIGNCODENOP \
100 if ((s4) ((ptrint) cd->mcodeptr & 7)) { \
105 /* branch defines *************************************************************/
107 #define BRANCH_NOPS \
109 if (CODEGENDATA_HAS_FLAG_LONGBRANCHES(cd)) { \
119 /* patcher defines ************************************************************/
121 #define PATCHER_CALL_SIZE 1 * 4 /* an instruction is 4-bytes long */
123 #define PATCHER_NOPS \
129 /* macros to create code ******************************************************/
131 #define M_OP3(opcode,y,oe,rc,d,a,b) \
133 *((u4 *) cd->mcodeptr) = (((opcode) << 26) | ((d) << 21) | ((a) << 16) | ((b) << 11) | ((oe) << 10) | ((y) << 1) | (rc)); \
137 #define M_OP3_GET_A(x) (((x) >> 16) & 0x1f )
138 #define M_OP3_GET_B(x) (((x) >> 11) & 0x1f )
141 #define M_OP4(x,y,rc,d,a,b,c) \
143 *((u4 *) cd->mcodeptr) = (((x) << 26) | ((d) << 21) | ((a) << 16) | ((b) << 11) | ((c) << 6) | ((y) << 1) | (rc)); \
148 #define M_OP2_IMM(x,d,a,i) \
150 *((u4 *) cd->mcodeptr) = (((x) << 26) | ((d) << 21) | ((a) << 16) | ((i) & 0xffff)); \
154 #define M_INSTR_OP2_IMM_D(x) (((x) >> 21) & 0x1f )
155 #define M_INSTR_OP2_IMM_A(x) (((x) >> 16) & 0x1f )
156 #define M_INSTR_OP2_IMM_I(x) ( (x) & 0xffff)
159 #define M_BMASK 0x03fffffc /* (((1 << 26) - 1) & ~3) */
160 #define M_BCMASK 0x0000fffc /* (((1 << 16) - 1) & ~3) */
162 #define M_B(LI,AA,LK) \
164 *((u4 *) cd->mcodeptr) = ((18 << 26) | ((((LI) * 4) + 4) & M_BMASK) | ((AA) << 1) | (LK)); \
168 #define M_BC(BO,BI,BD,AA,LK) \
170 *((u4 *) cd->mcodeptr) = ((16 << 26) | ((BO) << 21) | ((BI) << 16) | ((((BD) * 4) + 4) & M_BCMASK) | ((AA) << 1) | (LK)); \
175 /* instruction macros *********************************************************/
177 #define M_IADD(a,b,c) M_OP3(31, 266, 0, 0, c, a, b)
178 #define M_IADD_IMM(a,b,c) M_OP2_IMM(14, c, a, b)
179 #define M_ADDC(a,b,c) M_OP3(31, 10, 0, 0, c, a, b)
180 #define M_ADDIC(a,b,c) M_OP2_IMM(12, c, a, b)
181 #define M_ADDICTST(a,b,c) M_OP2_IMM(13, c, a, b)
182 #define M_ADDE(a,b,c) M_OP3(31, 138, 0, 0, c, a, b)
183 #define M_ADDZE(a,b) M_OP3(31, 202, 0, 0, b, a, 0)
184 #define M_ADDME(a,b) M_OP3(31, 234, 0, 0, b, a, 0)
185 #define M_ISUB(a,b,c) M_OP3(31, 40, 0, 0, c, b, a)
186 #define M_ISUBTST(a,b,c) M_OP3(31, 40, 0, 1, c, b, a)
187 #define M_SUBC(a,b,c) M_OP3(31, 8, 0, 0, c, b, a)
188 #define M_SUBIC(a,b,c) M_OP2_IMM(8, c, b, a)
189 #define M_SUBE(a,b,c) M_OP3(31, 136, 0, 0, c, b, a)
190 #define M_SUBZE(a,b) M_OP3(31, 200, 0, 0, b, a, 0)
191 #define M_SUBME(a,b) M_OP3(31, 232, 0, 0, b, a, 0)
193 #define M_AND(a,b,c) M_OP3(31, 28, 0, 0, a, c, b)
194 #define M_AND_IMM(a,b,c) M_OP2_IMM(28, a, c, b)
195 #define M_ANDIS(a,b,c) M_OP2_IMM(29, a, c, b)
196 #define M_OR(a,b,c) M_OP3(31, 444, 0, 0, a, c, b)
197 #define M_OR_TST(a,b,c) M_OP3(31, 444, 0, 1, a, c, b)
198 #define M_OR_IMM(a,b,c) M_OP2_IMM(24, a, c, b)
199 #define M_ORIS(a,b,c) M_OP2_IMM(25, a, c, b)
200 #define M_XOR(a,b,c) M_OP3(31, 316, 0, 0, a, c, b)
201 #define M_XOR_IMM(a,b,c) M_OP2_IMM(26, a, c, b)
202 #define M_XORIS(a,b,c) M_OP2_IMM(27, a, c, b)
204 #define M_SLL(a,b,c) M_OP3(31, 24, 0, 0, a, c, b)
205 #define M_SRL(a,b,c) M_OP3(31, 536, 0, 0, a, c, b)
206 #define M_SRA(a,b,c) M_OP3(31, 792, 0, 0, a, c, b)
207 #define M_SRA_IMM(a,b,c) M_OP3(31, 824, 0, 0, a, c, b)
209 #define M_IMUL(a,b,c) M_OP3(31, 235, 0, 0, c, a, b)
210 #define M_IMUL_IMM(a,b,c) M_OP2_IMM(7, c, a, b)
211 #define M_IDIV(a,b,c) M_OP3(31, 491, 0, 0, c, a, b)
213 #define M_NEG(a,b) M_OP3(31, 104, 0, 0, b, a, 0)
214 #define M_NOT(a,b) M_OP3(31, 124, 0, 0, a, b, a)
216 #define M_SUBFIC(a,b,c) M_OP2_IMM(8, c, a, b)
217 #define M_SUBFZE(a,b) M_OP3(31, 200, 0, 0, b, a, 0)
218 #define M_RLWINM(a,b,c,d,e) M_OP4(21, d, 0, a, e, b, c)
219 #define M_ADDZE(a,b) M_OP3(31, 202, 0, 0, b, a, 0)
220 #define M_SLL_IMM(a,b,c) M_RLWINM(a,b,0,31-(b),c)
221 #define M_SRL_IMM(a,b,c) M_RLWINM(a,32-(b),b,31,c)
222 #define M_ADDIS(a,b,c) M_OP2_IMM(15, c, a, b)
223 #define M_STFIWX(a,b,c) M_OP3(31, 983, 0, 0, a, b, c)
224 #define M_LWZX(a,b,c) M_OP3(31, 23, 0, 0, a, b, c)
225 #define M_LHZX(a,b,c) M_OP3(31, 279, 0, 0, a, b, c)
226 #define M_LHAX(a,b,c) M_OP3(31, 343, 0, 0, a, b, c)
227 #define M_LBZX(a,b,c) M_OP3(31, 87, 0, 0, a, b, c)
228 #define M_LFSX(a,b,c) M_OP3(31, 535, 0, 0, a, b, c)
229 #define M_LFDX(a,b,c) M_OP3(31, 599, 0, 0, a, b, c)
230 #define M_STWX(a,b,c) M_OP3(31, 151, 0, 0, a, b, c)
231 #define M_STHX(a,b,c) M_OP3(31, 407, 0, 0, a, b, c)
232 #define M_STBX(a,b,c) M_OP3(31, 215, 0, 0, a, b, c)
233 #define M_STFSX(a,b,c) M_OP3(31, 663, 0, 0, a, b, c)
234 #define M_STFDX(a,b,c) M_OP3(31, 727, 0, 0, a, b, c)
236 #define M_STWU_INTERN(a,b,disp) M_OP2_IMM(37,a,b,disp)
238 #define M_STWU(a,b,disp) \
240 s4 lo = (disp) & 0x0000ffff; \
241 s4 hi = ((disp) >> 16); \
242 if (((disp) >= -32678) && ((disp) <= 32767)) { \
243 M_STWU_INTERN(a,b,lo); \
245 M_ADDIS(REG_ZERO,hi,REG_ITMP3); \
246 M_OR_IMM(REG_ITMP3,lo,REG_ITMP3); \
247 M_STWUX(REG_SP,REG_SP,REG_ITMP3); \
251 #define M_STWUX(a,b,c) M_OP3(31,183,0,0,a,b,c)
253 #define M_LDAH(a,b,c) M_ADDIS(b, c, a)
255 #define M_TRAP M_OP3(31, 4, 0, 0, 31, 0, 0)
256 #define M_TRAPGEU(a,b) M_OP3(31, 4, 0, 0, 5, a, b)
258 #define M_NOP M_OR_IMM(0, 0, 0)
259 #define M_MOV(a,b) M_OR(a, a, b)
260 #define M_TST(a) M_OP3(31, 444, 0, 1, a, a, a)
262 #define M_DADD(a,b,c) M_OP3(63, 21, 0, 0, c, a, b)
263 #define M_FADD(a,b,c) M_OP3(59, 21, 0, 0, c, a, b)
264 #define M_DSUB(a,b,c) M_OP3(63, 20, 0, 0, c, a, b)
265 #define M_FSUB(a,b,c) M_OP3(59, 20, 0, 0, c, a, b)
266 #define M_DMUL(a,b,c) M_OP4(63, 25, 0, c, a, 0, b)
267 #define M_FMUL(a,b,c) M_OP4(59, 25, 0, c, a, 0, b)
268 #define M_DDIV(a,b,c) M_OP3(63, 18, 0, 0, c, a, b)
269 #define M_FDIV(a,b,c) M_OP3(59, 18, 0, 0, c, a, b)
271 #define M_FABS(a,b) M_OP3(63, 264, 0, 0, b, 0, a)
272 #define M_CVTDL(a,b) M_OP3(63, 14, 0, 0, b, 0, a)
273 #define M_CVTDL_C(a,b) M_OP3(63, 15, 0, 0, b, 0, a)
274 #define M_CVTDF(a,b) M_OP3(63, 12, 0, 0, b, 0, a)
275 #define M_FMOV(a,b) M_OP3(63, 72, 0, 0, b, 0, a)
276 #define M_FMOVN(a,b) M_OP3(63, 40, 0, 0, b, 0, a)
277 #define M_DSQRT(a,b) M_OP3(63, 22, 0, 0, b, 0, a)
278 #define M_FSQRT(a,b) M_OP3(59, 22, 0, 0, b, 0, a)
280 #define M_FCMPU(a,b) M_OP3(63, 0, 0, 0, 0, a, b)
281 #define M_FCMPO(a,b) M_OP3(63, 32, 0, 0, 0, a, b)
283 #define M_BLDU(a,b,c) M_OP2_IMM(34, a, b, c)
284 #define M_SLDU(a,b,c) M_OP2_IMM(40, a, b, c)
286 #define M_ILD_INTERN(a,b,disp) M_OP2_IMM(32,a,b,disp)
288 #define M_ILD(a,b,disp) \
290 s4 lo = (short) (disp); \
291 s4 hi = (short) (((disp) - lo) >> 16); \
293 M_ILD_INTERN(a,b,lo); \
296 M_ILD_INTERN(a,a,lo); \
300 #define M_LLD_INTERN(a,b,disp) \
302 M_ILD_INTERN(GET_HIGH_REG(a), b, disp); \
303 M_ILD_INTERN(GET_LOW_REG(a), b, disp + 4); \
306 #define M_LLD(a,b,disp) \
308 s4 lo = (short) (disp); \
309 s4 hi = (short) (((disp) - lo) >> 16); \
311 M_LLD_INTERN(a,b,lo); \
314 M_LLD_INTERN(a,GET_LOW_REG(a),lo); \
318 #define M_ALD_INTERN(a,b,disp) M_ILD_INTERN(a,b,disp)
319 #define M_ALD(a,b,disp) M_ILD(a,b,disp)
321 #define M_BST(a,b,c) M_OP2_IMM(38, a, b, c)
322 #define M_SST(a,b,c) M_OP2_IMM(44, a, b, c)
324 #define M_IST_INTERN(a,b,disp) M_OP2_IMM(36,a,b,disp)
326 /* Stores with displacement overflow should only happen with PUTFIELD
327 or on the stack. The PUTFIELD instruction does not use REG_ITMP3
328 and a reg_of_var call should not use REG_ITMP3!!! */
330 #define M_IST(a,b,disp) \
332 s4 lo = (short) (disp); \
333 s4 hi = (short) (((disp) - lo) >> 16); \
335 M_IST_INTERN(a,b,lo); \
337 M_ADDIS(b,hi,REG_ITMP3); \
338 M_IST_INTERN(a,REG_ITMP3,lo); \
342 #define M_LST_INTERN(a,b,disp) \
344 M_IST_INTERN(GET_HIGH_REG(a), b, disp); \
345 M_IST_INTERN(GET_LOW_REG(a), b, disp + 4); \
348 #define M_LST(a,b,disp) \
350 s4 lo = (short) (disp); \
351 s4 hi = (short) (((disp) - lo) >> 16); \
353 M_LST_INTERN(a,b,lo); \
355 M_ADDIS(b,hi,REG_ITMP3); \
356 M_LST_INTERN(a,REG_ITMP3, lo); \
360 #define M_AST_INTERN(a,b,disp) M_IST_INTERN(a,b,disp)
361 #define M_AST(a,b,disp) M_IST(a,b,disp)
363 #define M_BSEXT(a,b) M_OP3(31, 954, 0, 0, a, b, 0)
364 #define M_SSEXT(a,b) M_OP3(31, 922, 0, 0, a, b, 0)
365 #define M_CZEXT(a,b) M_RLWINM(a,0,16,31,b)
367 #define M_BR(a) M_B(a, 0, 0)
368 #define M_BL(a) M_B(a, 0, 1)
369 #define M_RET M_OP3(19, 16, 0, 0, 20, 0, 0)
370 #define M_JSR M_OP3(19, 528, 0, 1, 20, 0, 0)
371 #define M_RTS M_OP3(19, 528, 0, 0, 20, 0, 0)
373 #define M_CMP(a,b) M_OP3(31, 0, 0, 0, 0, a, b)
374 #define M_CMPU(a,b) M_OP3(31, 32, 0, 0, 0, a, b)
375 #define M_CMPI(a,b) M_OP2_IMM(11, 0, a, b)
376 #define M_CMPUI(a,b) M_OP2_IMM(10, 0, a, b)
378 #define M_BLT(a) M_BC(12, 0, a, 0, 0)
379 #define M_BLE(a) M_BC(4, 1, a, 0, 0)
380 #define M_BGT(a) M_BC(12, 1, a, 0, 0)
381 #define M_BGE(a) M_BC(4, 0, a, 0, 0)
382 #define M_BEQ(a) M_BC(12, 2, a, 0, 0)
383 #define M_BNE(a) M_BC(4, 2, a, 0, 0)
384 #define M_BNAN(a) M_BC(12, 3, a, 0, 0)
386 #define M_FLD_INTERN(a,b,disp) M_OP2_IMM(48,a,b,disp)
387 #define M_DLD_INTERN(a,b,disp) M_OP2_IMM(50,a,b,disp)
389 #define M_FLD(a,b,disp) \
391 s4 lo = (short) (disp); \
392 s4 hi = (short) (((disp) - lo) >> 16); \
394 M_FLD_INTERN(a,b,lo); \
396 M_ADDIS(b,hi,REG_ITMP3); \
397 M_FLD_INTERN(a,REG_ITMP3,lo); \
401 #define M_DLD(a,b,disp) \
403 s4 lo = (short) (disp); \
404 s4 hi = (short) (((disp) - lo) >> 16); \
406 M_DLD_INTERN(a,b,lo); \
408 M_ADDIS(b,hi,REG_ITMP3); \
409 M_DLD_INTERN(a,REG_ITMP3,lo); \
413 #define M_FST_INTERN(a,b,disp) M_OP2_IMM(52,a,b,disp)
414 #define M_DST_INTERN(a,b,disp) M_OP2_IMM(54,a,b,disp)
416 #define M_FST(a,b,disp) \
418 s4 lo = (short) (disp); \
419 s4 hi = (short) (((disp) - lo) >> 16); \
421 M_FST_INTERN(a,b,lo); \
423 M_ADDIS(b,hi,REG_ITMP3); \
424 M_FST_INTERN(a,REG_ITMP3,lo); \
428 #define M_DST(a,b,disp) \
430 s4 lo = (short) (disp); \
431 s4 hi = (short) (((disp) - lo) >> 16); \
433 M_DST_INTERN(a,b,lo); \
435 M_ADDIS(b,hi,REG_ITMP3); \
436 M_DST_INTERN(a,REG_ITMP3,lo); \
440 #define M_MFLR(a) M_OP3(31, 339, 0, 0, a, 8, 0)
441 #define M_MFXER(a) M_OP3(31, 339, 0, 0, a, 1, 0)
442 #define M_MFCTR(a) M_OP3(31, 339, 0, 0, a, 9, 0)
443 #define M_MTLR(a) M_OP3(31, 467, 0, 0, a, 8, 0)
444 #define M_MTXER(a) M_OP3(31, 467, 0, 0, a, 1, 0)
445 #define M_MTCTR(a) M_OP3(31, 467, 0, 0, a, 9, 0)
447 #define M_LDA_INTERN(a,b,c) M_IADD_IMM(b, c, a)
449 #define M_LDA(a,b,disp) \
451 s4 lo = (short) (disp); \
452 s4 hi = (short) (((disp) - lo) >> 16); \
454 M_LDA_INTERN(a,b,lo); \
457 M_LDA_INTERN(a,a,lo); \
462 #define M_LDATST(a,b,c) M_ADDICTST(b, c, a)
463 #define M_CLR(a) M_IADD_IMM(0, 0, a)
464 #define M_AADD_IMM(a,b,c) M_IADD_IMM(a, b, c)
466 #endif /* _CODEGEN_H */
470 * These are local overrides for various environment variables in Emacs.
471 * Please do not remove this and leave it at the end of the file, where
472 * Emacs will automagically detect them.
473 * ---------------------------------------------------------------------
476 * indent-tabs-mode: t