1 /* src/vm/jit/powerpc/codegen.h - code generation macros and definitions for
4 Copyright (C) 1996-2005, 2006, 2007, 2008
5 CACAOVM - Verein zur Foerderung der freien virtuellen Maschine CACAO
7 This file is part of CACAO.
9 This program is free software; you can redistribute it and/or
10 modify it under the terms of the GNU General Public License as
11 published by the Free Software Foundation; either version 2, or (at
12 your option) any later version.
14 This program is distributed in the hope that it will be useful, but
15 WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program; if not, write to the Free Software
21 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
34 #include "vm/global.h"
35 #include "vm/jit/jit.hpp"
36 #include "vm/jit/reg.h"
39 /* additional functions and macros to generate code ***************************/
41 /* MCODECHECK(icnt) */
43 #define MCODECHECK(icnt) \
45 if ((cd->mcodeptr + (icnt) * 4) > cd->mcodeend) \
46 codegen_increase(cd); \
50 #define ICONST(d,c) emit_iconst(cd, (d), (c))
52 #define LCONST(reg,c) \
53 ICONST(GET_HIGH_REG((reg)), (s4) ((s8) (c) >> 32)); \
54 ICONST(GET_LOW_REG((reg)), (s4) ((s8) (c)));
56 #define M_DMOV(a,b) M_FMOV(a,b)
58 #define ALIGNCODENOP \
59 if ((s4) ((ptrint) cd->mcodeptr & 7)) { \
64 /* branch defines *************************************************************/
68 if (CODEGENDATA_HAS_FLAG_LONGBRANCHES(cd)) { \
78 /* patcher defines ************************************************************/
80 #define PATCHER_CALL_SIZE 1 * 4 /* an instruction is 4-bytes long */
82 #define PATCHER_NOPS \
88 /* macros to create code ******************************************************/
90 #define M_OP3(opcode,y,oe,rc,d,a,b) \
92 *((u4 *) cd->mcodeptr) = (((opcode) << 26) | ((d) << 21) | ((a) << 16) | ((b) << 11) | ((oe) << 10) | ((y) << 1) | (rc)); \
96 #define M_OP3_GET_A(x) (((x) >> 16) & 0x1f )
97 #define M_OP3_GET_B(x) (((x) >> 11) & 0x1f )
100 #define M_OP4(x,y,rc,d,a,b,c) \
102 *((u4 *) cd->mcodeptr) = (((x) << 26) | ((d) << 21) | ((a) << 16) | ((b) << 11) | ((c) << 6) | ((y) << 1) | (rc)); \
107 #define M_OP2_IMM(x,d,a,i) \
109 *((u4 *) cd->mcodeptr) = (((x) << 26) | ((d) << 21) | ((a) << 16) | ((i) & 0xffff)); \
113 #define M_INSTR_OP2_IMM_D(x) (((x) >> 21) & 0x1f )
114 #define M_INSTR_OP2_IMM_A(x) (((x) >> 16) & 0x1f )
115 #define M_INSTR_OP2_IMM_I(x) ( (x) & 0xffff)
118 #define M_BMASK 0x03fffffc /* (((1 << 26) - 1) & ~3) */
119 #define M_BCMASK 0x0000fffc /* (((1 << 16) - 1) & ~3) */
121 #define M_B(LI,AA,LK) \
123 *((u4 *) cd->mcodeptr) = ((18 << 26) | ((((LI) * 4) + 4) & M_BMASK) | ((AA) << 1) | (LK)); \
127 #define M_BC(BO,BI,BD,AA,LK) \
129 *((u4 *) cd->mcodeptr) = ((16 << 26) | ((BO) << 21) | ((BI) << 16) | ((((BD) * 4) + 4) & M_BCMASK) | ((AA) << 1) | (LK)); \
134 /* machine instruction macros **************************************************
138 machine instruction macro:
139 Same order as for the mnemonic (d, s1, s2).
142 Same order as in the instruction encoding.
144 *******************************************************************************/
146 #define MI_and(rA,rS,rB) M_OP3(31, 28, 0, 0, rS, rA, rB)
147 #define MI_anddot(rA,rS,rB) M_OP3(31, 28, 0, 1, rS, rA, rB)
148 #define MI_andi(rA,rS,UIMM) M_OP2_IMM(28, rS, rA, UIMM)
149 #define MI_illegal M_OP3( 0, 0, 0, 0, 0, 0, 0)
150 #define MI_lwarx(rD,rA,rB) M_OP3(31, 20, 0, 0, rD, rA, rB)
151 #define MI_or(rA,rS,rB) M_OP3(31, 444, 0, 0, rS, rA, rB)
152 #define MI_ordot(rA,rS,rB) M_OP3(31, 444, 0, 1, rS, rA, rB)
153 #define MI_ori(rA,rS,UIMM) M_OP2_IMM(24, rS, rA, UIMM)
154 #define MI_stwcxdot(rS,rA,rB) M_OP3(31, 150, 0, 1, rS, rA, rB)
155 #define MI_subf(rD,rA,rB) M_OP3(31, 40, 0, 0, rD, rA, rB)
156 #define MI_subfdot(rD,rA,rB) M_OP3(31, 40, 0, 1, rD, rA, rB)
157 #define MI_sync M_OP3(31, 598, 0, 0, 0, 0, 0)
160 /* HIR macros ******************************************************************
165 Default usage in CACAO (s1, s2, d).
167 machine instruction macro:
168 Same order as for the mnemonic (d, s1, s2).
170 *******************************************************************************/
172 /* integer instructions *******************************************************/
174 #define M_IAND(a,b,d) MI_and(d, a, b)
175 #define M_IAND_IMM(a,b,d) MI_andi(d, a, b)
176 #define M_ILLEGAL MI_illegal
177 #define M_IOR(a,b,d) MI_or(d, a, b)
178 #define M_IOR_IMM(a,b,d) MI_ori(d, a, b)
179 #define M_IOR_TST(a,b,d) MI_ordot(d, a, b)
180 #define M_ISUB(a,b,d) MI_subf(d, b, a)
181 #define M_ISUB_TST(a,b,d) MI_subfdot(d, b, a)
182 #define M_MOV(a,d) MI_or(d, a, a)
183 #define M_NOP MI_ori(0, 0, 0)
186 #define M_ADDC(a,b,c) M_OP3(31, 10, 0, 0, c, a, b)
187 #define M_ADDE(a,b,c) M_OP3(31, 138, 0, 0, c, a, b)
188 #define M_ADDIC(a,b,c) M_OP2_IMM(12, c, a, b)
189 #define M_ADDICTST(a,b,c) M_OP2_IMM(13, c, a, b)
190 #define M_ADDIS(a,b,c) M_OP2_IMM(15, c, a, b)
191 #define M_ADDME(a,b) M_OP3(31, 234, 0, 0, b, a, 0)
192 #define M_ADDZE(a,b) M_OP3(31, 202, 0, 0, b, a, 0)
193 #define M_ADDZE(a,b) M_OP3(31, 202, 0, 0, b, a, 0)
194 #define M_ANDIS(a,b,c) M_OP2_IMM(29, a, c, b)
195 #define M_BEQ(a) M_BC(12, 2, a, 0, 0)
196 #define M_BGE(a) M_BC(4, 0, a, 0, 0)
197 #define M_BGT(a) M_BC(12, 1, a, 0, 0)
198 #define M_BL(a) M_B(a, 0, 1)
199 #define M_BLDU(a,b,c) M_OP2_IMM(34, a, b, c)
200 #define M_BLE(a) M_BC(4, 1, a, 0, 0)
201 #define M_BLT(a) M_BC(12, 0, a, 0, 0)
202 #define M_BNAN(a) M_BC(12, 3, a, 0, 0)
203 #define M_BNE(a) M_BC(4, 2, a, 0, 0)
204 #define M_BR(a) M_B(a, 0, 0)
205 #define M_BSEXT(a,b) M_OP3(31, 954, 0, 0, a, b, 0)
206 #define M_BST(a,b,c) M_OP2_IMM(38, a, b, c)
207 #define M_CMP(a,b) M_OP3(31, 0, 0, 0, 0, a, b)
208 #define M_CMPI(a,b) M_OP2_IMM(11, 0, a, b)
209 #define M_CMPU(a,b) M_OP3(31, 32, 0, 0, 0, a, b)
210 #define M_CMPUI(a,b) M_OP2_IMM(10, 0, a, b)
211 #define M_CNTLZ(a,b) M_OP3(31, 26, 0, 0, a, b, 0)
212 #define M_CZEXT(a,b) M_RLWINM(a,0,16,31,b)
213 #define M_IADD(a,b,c) M_OP3(31, 266, 0, 0, c, a, b)
214 #define M_IADD_IMM(a,b,c) M_OP2_IMM(14, c, a, b)
215 #define M_IDIV(a,b,c) M_OP3(31, 491, 0, 0, c, a, b)
216 #define M_IMUL(a,b,c) M_OP3(31, 235, 0, 0, c, a, b)
217 #define M_IMUL_IMM(a,b,c) M_OP2_IMM(7, c, a, b)
218 #define M_JSR M_OP3(19, 528, 0, 1, 20, 0, 0)
219 #define M_LBZX(a,b,c) M_OP3(31, 87, 0, 0, a, b, c)
220 #define M_LHAX(a,b,c) M_OP3(31, 343, 0, 0, a, b, c)
221 #define M_LHZX(a,b,c) M_OP3(31, 279, 0, 0, a, b, c)
222 #define M_LWZX(a,b,c) M_OP3(31, 23, 0, 0, a, b, c)
223 #define M_MFCTR(a) M_OP3(31, 339, 0, 0, a, 9, 0)
224 #define M_MFLR(a) M_OP3(31, 339, 0, 0, a, 8, 0)
225 #define M_MFXER(a) M_OP3(31, 339, 0, 0, a, 1, 0)
226 #define M_MTCTR(a) M_OP3(31, 467, 0, 0, a, 9, 0)
227 #define M_MTLR(a) M_OP3(31, 467, 0, 0, a, 8, 0)
228 #define M_MTXER(a) M_OP3(31, 467, 0, 0, a, 1, 0)
229 #define M_NEG(a,b) M_OP3(31, 104, 0, 0, b, a, 0)
230 #define M_NOT(a,b) M_OP3(31, 124, 0, 0, a, b, a)
231 #define M_ORIS(a,b,c) M_OP2_IMM(25, a, c, b)
232 #define M_RET M_OP3(19, 16, 0, 0, 20, 0, 0)
233 #define M_RLWINM(a,b,c,d,e) M_OP4(21, d, 0, a, e, b, c)
234 #define M_RTS M_OP3(19, 528, 0, 0, 20, 0, 0)
235 #define M_SLDU(a,b,c) M_OP2_IMM(40, a, b, c)
236 #define M_SLL(a,b,c) M_OP3(31, 24, 0, 0, a, c, b)
237 #define M_SLL_IMM(a,b,c) M_RLWINM(a,b,0,31-(b),c)
238 #define M_SRA(a,b,c) M_OP3(31, 792, 0, 0, a, c, b)
239 #define M_SRA_IMM(a,b,c) M_OP3(31, 824, 0, 0, a, c, b)
240 #define M_SRL(a,b,c) M_OP3(31, 536, 0, 0, a, c, b)
241 #define M_SRL_IMM(a,b,c) M_RLWINM(a,32-(b),b,31,c)
242 #define M_SSEXT(a,b) M_OP3(31, 922, 0, 0, a, b, 0)
243 #define M_SST(a,b,c) M_OP2_IMM(44, a, b, c)
244 #define M_STBX(a,b,c) M_OP3(31, 215, 0, 0, a, b, c)
245 #define M_STHX(a,b,c) M_OP3(31, 407, 0, 0, a, b, c)
246 #define M_STWUX(a,b,c) M_OP3(31,183,0,0,a,b,c)
247 #define M_STWX(a,b,c) M_OP3(31, 151, 0, 0, a, b, c)
248 #define M_SUBC(a,b,c) M_OP3(31, 8, 0, 0, c, b, a)
249 #define M_SUBE(a,b,c) M_OP3(31, 136, 0, 0, c, b, a)
250 #define M_SUBFIC(a,b,c) M_OP2_IMM(8, c, a, b)
251 #define M_SUBFZE(a,b) M_OP3(31, 200, 0, 0, b, a, 0)
252 #define M_SUBIC(a,b,c) M_OP2_IMM(8, c, b, a)
253 #define M_SUBME(a,b) M_OP3(31, 232, 0, 0, b, a, 0)
254 #define M_SUBZE(a,b) M_OP3(31, 200, 0, 0, b, a, 0)
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)
257 #define M_TST(a) M_OP3(31, 444, 0, 1, a, a, a)
258 #define M_XOR(a,b,c) M_OP3(31, 316, 0, 0, a, c, b)
259 #define M_XORIS(a,b,c) M_OP2_IMM(27, a, c, b)
260 #define M_XOR_IMM(a,b,c) M_OP2_IMM(26, a, c, b)
263 #define M_LDAH(a,b,c) M_ADDIS(b, c, a)
264 #define M_LDATST(a,b,c) M_ADDICTST(b, c, a)
265 #define M_CLR(a) M_IADD_IMM(0, 0, a)
268 #define M_ILD_INTERN(a,b,disp) M_OP2_IMM(32,a,b,disp)
270 #define M_ILD(a,b,disp) \
272 s4 lo = (short) (disp); \
273 s4 hi = (short) (((disp) - lo) >> 16); \
275 M_ILD_INTERN(a,b,lo); \
278 M_ILD_INTERN(a,a,lo); \
282 #define M_LLD_INTERN(a,b,disp) \
284 M_ILD_INTERN(GET_HIGH_REG(a), b, disp); \
285 M_ILD_INTERN(GET_LOW_REG(a), b, disp + 4); \
288 #define M_LLD(a,b,disp) \
290 s4 lo = (short) (disp); \
291 s4 hi = (short) (((disp) - lo) >> 16); \
293 M_LLD_INTERN(a,b,lo); \
296 M_LLD_INTERN(a,GET_LOW_REG(a),lo); \
300 #define M_IST_INTERN(a,b,disp) M_OP2_IMM(36,a,b,disp)
302 /* Stores with displacement overflow should only happen with PUTFIELD
303 or on the stack. The PUTFIELD instruction does not use REG_ITMP3
304 and a reg_of_var call should not use REG_ITMP3!!! */
306 #define M_IST(a,b,disp) \
308 s4 lo = (short) (disp); \
309 s4 hi = (short) (((disp) - lo) >> 16); \
311 M_IST_INTERN(a,b,lo); \
313 M_ADDIS(b,hi,REG_ITMP3); \
314 M_IST_INTERN(a,REG_ITMP3,lo); \
318 #define M_LST_INTERN(a,b,disp) \
320 M_IST_INTERN(GET_HIGH_REG(a), b, disp); \
321 M_IST_INTERN(GET_LOW_REG(a), b, disp + 4); \
324 #define M_LST(a,b,disp) \
326 s4 lo = (short) (disp); \
327 s4 hi = (short) (((disp) - lo) >> 16); \
329 M_LST_INTERN(a,b,lo); \
331 M_ADDIS(b,hi,REG_ITMP3); \
332 M_LST_INTERN(a,REG_ITMP3, lo); \
336 #define M_STWU_INTERN(a,b,disp) M_OP2_IMM(37,a,b,disp)
338 #define M_STWU(a,b,disp) \
340 s4 lo = (disp) & 0x0000ffff; \
341 s4 hi = ((disp) >> 16); \
342 if (((disp) >= -32678) && ((disp) <= 32767)) { \
343 M_STWU_INTERN(a,b,lo); \
345 M_ADDIS(REG_ZERO,hi,REG_ITMP3); \
346 M_IOR_IMM(REG_ITMP3,lo,REG_ITMP3); \
347 M_STWUX(REG_SP,REG_SP,REG_ITMP3); \
351 #define M_LDA_INTERN(a,b,c) M_IADD_IMM(b, c, a)
353 #define M_LDA(a,b,disp) \
355 s4 lo = (short) (disp); \
356 s4 hi = (short) (((disp) - lo) >> 16); \
358 M_LDA_INTERN(a,b,lo); \
361 M_LDA_INTERN(a,a,lo); \
366 #define M_AADD(a,b,d) M_IADD(a, b, d)
367 #define M_AADD_IMM(a,b,d) M_IADD_IMM(a, b, d)
368 #define M_ALD_INTERN(a,b,disp) M_ILD_INTERN(a,b,disp)
369 #define M_ALD(a,b,disp) M_ILD(a,b,disp)
370 #define M_AST_INTERN(a,b,disp) M_IST_INTERN(a,b,disp)
371 #define M_AST(a,b,disp) M_IST(a,b,disp)
373 #define M_ACMP(a,b) M_CMP(a,b)
374 #define M_ICMP(a,b) M_CMP(a,b)
376 #define M_TEST(a) M_TST(a)
377 #define M_ALD_DSEG(a,disp) M_ALD(a,REG_PV,disp);
380 /* floating point instructions ************************************************/
382 #define M_CVTDF(a,b) M_OP3(63, 12, 0, 0, b, 0, a)
383 #define M_CVTDL(a,b) M_OP3(63, 14, 0, 0, b, 0, a)
384 #define M_CVTDL_C(a,b) M_OP3(63, 15, 0, 0, b, 0, a)
385 #define M_DADD(a,b,c) M_OP3(63, 21, 0, 0, c, a, b)
386 #define M_DDIV(a,b,c) M_OP3(63, 18, 0, 0, c, a, b)
387 #define M_DMUL(a,b,c) M_OP4(63, 25, 0, c, a, 0, b)
388 #define M_DSQRT(a,b) M_OP3(63, 22, 0, 0, b, 0, a)
389 #define M_DSUB(a,b,c) M_OP3(63, 20, 0, 0, c, a, b)
390 #define M_FABS(a,b) M_OP3(63, 264, 0, 0, b, 0, a)
391 #define M_FADD(a,b,c) M_OP3(59, 21, 0, 0, c, a, b)
392 #define M_FCMPO(a,b) M_OP3(63, 32, 0, 0, 0, a, b)
393 #define M_FCMPU(a,b) M_OP3(63, 0, 0, 0, 0, a, b)
394 #define M_FDIV(a,b,c) M_OP3(59, 18, 0, 0, c, a, b)
395 #define M_FMOV(a,b) M_OP3(63, 72, 0, 0, b, 0, a)
396 #define M_FMOVN(a,b) M_OP3(63, 40, 0, 0, b, 0, a)
397 #define M_FMUL(a,b,c) M_OP4(59, 25, 0, c, a, 0, b)
398 #define M_FSQRT(a,b) M_OP3(59, 22, 0, 0, b, 0, a)
399 #define M_FSUB(a,b,c) M_OP3(59, 20, 0, 0, c, a, b)
400 #define M_LFDX(a,b,c) M_OP3(31, 599, 0, 0, a, b, c)
401 #define M_LFSX(a,b,c) M_OP3(31, 535, 0, 0, a, b, c)
402 #define M_STFDX(a,b,c) M_OP3(31, 727, 0, 0, a, b, c)
403 #define M_STFIWX(a,b,c) M_OP3(31, 983, 0, 0, a, b, c)
404 #define M_STFSX(a,b,c) M_OP3(31, 663, 0, 0, a, b, c)
407 #define M_FLD_INTERN(a,b,disp) M_OP2_IMM(48,a,b,disp)
409 #define M_FLD(a,b,disp) \
411 s4 lo = (short) (disp); \
412 s4 hi = (short) (((disp) - lo) >> 16); \
414 M_FLD_INTERN(a,b,lo); \
416 M_ADDIS(b,hi,REG_ITMP3); \
417 M_FLD_INTERN(a,REG_ITMP3,lo); \
421 #define M_DLD_INTERN(a,b,disp) M_OP2_IMM(50,a,b,disp)
423 #define M_DLD(a,b,disp) \
425 s4 lo = (short) (disp); \
426 s4 hi = (short) (((disp) - lo) >> 16); \
428 M_DLD_INTERN(a,b,lo); \
430 M_ADDIS(b,hi,REG_ITMP3); \
431 M_DLD_INTERN(a,REG_ITMP3,lo); \
435 #define M_FST_INTERN(a,b,disp) M_OP2_IMM(52,a,b,disp)
437 #define M_FST(a,b,disp) \
439 s4 lo = (short) (disp); \
440 s4 hi = (short) (((disp) - lo) >> 16); \
442 M_FST_INTERN(a,b,lo); \
444 M_ADDIS(b,hi,REG_ITMP3); \
445 M_FST_INTERN(a,REG_ITMP3,lo); \
449 #define M_DST_INTERN(a,b,disp) M_OP2_IMM(54,a,b,disp)
451 #define M_DST(a,b,disp) \
453 s4 lo = (short) (disp); \
454 s4 hi = (short) (((disp) - lo) >> 16); \
456 M_DST_INTERN(a,b,lo); \
458 M_ADDIS(b,hi,REG_ITMP3); \
459 M_DST_INTERN(a,REG_ITMP3,lo); \
463 #endif /* _CODEGEN_H */
467 * These are local overrides for various environment variables in Emacs.
468 * Please do not remove this and leave it at the end of the file, where
469 * Emacs will automagically detect them.
470 * ---------------------------------------------------------------------
473 * indent-tabs-mode: t