1 /* src/vm/jit/powerpc64/codegen.h - code generation macros and
2 definitions for PowerPC64
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))
51 #define LCONST(reg,c) emit_lconst(cd, (reg), (c))
54 #define ALIGNCODENOP \
55 if ((s4) ((ptrint) cd->mcodeptr & 7)) { \
60 /* branch defines *************************************************************/
61 /* and additional branch is needed when generating long branches */
64 if (CODEGENDATA_HAS_FLAG_LONGBRANCHES(cd)) {\
71 /* patcher defines ************************************************************/
73 #define PATCHER_CALL_SIZE 1 * 4 /* an instruction is 4-bytes long */
75 #define PATCHER_NOPS \
81 /* macros to create code ******************************************************/
83 #define M_OP3(opcode,y,oe,rc,d,a,b) \
85 *((u4 *) cd->mcodeptr) = (((opcode) << 26) | ((d) << 21) | ((a) << 16) | ((b) << 11) | ((oe) << 10) | ((y) << 1) | (rc)); \
89 #define M_OP4(x,y,rc,d,a,b,c) \
91 *((u4 *) cd->mcodeptr) = (((x) << 26) | ((d) << 21) | ((a) << 16) | ((b) << 11) | ((c) << 6) | ((y) << 1) | (rc)); \
95 #define M_OP2_IMM(x,d,a,i) \
97 *((u4 *) cd->mcodeptr) = (((x) << 26) | ((d) << 21) | ((a) << 16) | ((i) & 0xffff)); \
101 /* for instruction decodeing */
102 #define M_INSTR_OP2_IMM_D(x) (((x) >> 21) & 0x1f )
103 #define M_INSTR_OP2_IMM_A(x) (((x) >> 16) & 0x1f )
104 #define M_INSTR_OP2_IMM_I(x) ( (x) & 0xffff)
106 #define M_BCMASK 0x0000fffc /* (((1 << 16) - 1) & ~3) */
107 #define M_BMASK 0x03fffffc /* (((1 << 26) - 1) & ~3) */
109 #define M_B(x,i,a,l) \
111 *((u4 *) cd->mcodeptr) = (((x) << 26) | ((((i) * 4) + 4) & M_BMASK) | ((a) << 1) | (l)); \
115 #define M_BC(x,bo,bi,i,a,l) \
117 *((u4 *) cd->mcodeptr) = (((x) << 26) | ((bo) << 21) | ((bi) << 16) | (((i) * 4 + 4) & M_BCMASK) | ((a) << 1) | (l)); \
123 #define M_EXTSW(a,b) M_OP3(31, 986, 0, 0, a, b, 0)
126 /* instruction macros *********************************************************/
128 #define M_ILLEGAL M_OP3(0, 0, 0, 0, 0, 0, 0)
129 #define M_IADD(a,b,c) M_LADD(a,b,c)
130 #define M_LADD(a,b,c) M_OP3(31, 266, 0, 0, c, a, b)
131 #define M_IADD_IMM(a,b,c) M_OP2_IMM(14, c, a, b) /* XXX */
132 #define M_LADD_IMM(a,b,c) M_OP2_IMM(14, c, a, b)
133 #define M_ADDC(a,b,c) M_OP3(31, 10, 0, 0, c, a, b)
134 #define M_ADDIC(a,b,c) M_OP2_IMM(12, c, a, b)
135 #define M_ADDICTST(a,b,c) M_OP2_IMM(13, c, a, b)
136 #define M_ADDE(a,b,c) M_OP3(31, 138, 0, 0, c, a, b)
137 #define M_ADDZE(a,b) M_OP3(31, 202, 0, 0, b, a, 0)
138 #define M_ADDME(a,b) M_OP3(31, 234, 0, 0, b, a, 0)
140 #define M_SUB(a,b,c) M_OP3(31, 40, 0, 0, c, b, a)
141 #define M_ISUBTST(a,b,c) M_OP3(31, 40, 0, 1, c, b, a)
142 #define M_SUBC(a,b,c) M_OP3(31, 8, 0, 0, c, b, a)
143 #define M_SUBIC(a,b,c) M_OP2_IMM(8, c, b, a)
144 #define M_SUBE(a,b,c) M_OP3(31, 136, 0, 0, c, b, a)
145 #define M_SUBZE(a,b) M_OP3(31, 200, 0, 0, b, a, 0)
146 #define M_SUBME(a,b) M_OP3(31, 232, 0, 0, b, a, 0)
148 #define M_AND(a,b,c) M_OP3(31, 28, 0, 0, a, c, b)
149 #define M_AND_IMM(a,b,c) M_OP2_IMM(28, a, c, b)
150 #define M_ANDIS(a,b,c) M_OP2_IMM(29, a, c, b)
151 #define M_OR(a,b,c) M_OP3(31, 444, 0, 0, a, c, b)
152 #define M_OR_TST(a,b,c) M_OP3(31, 444, 0, 1, a, c, b)
153 #define M_OR_IMM(a,b,c) M_OP2_IMM(24, a, c, b)
154 #define M_ORIS(a,b,c) M_OP2_IMM(25, a, c, b)
155 #define M_XOR(a,b,c) M_OP3(31, 316, 0, 0, a, c, b)
156 #define M_XOR_IMM(a,b,c) M_OP2_IMM(26, a, c, b)
157 #define M_XORIS(a,b,c) M_OP2_IMM(27, a, c, b)
159 /* RLDICR is said to be turing complete, this seems right */
160 #define M_SLL(a,b,c) M_OP3(31, 27, 0, 0, a, c, b)
161 #define M_SLL_IMM(a,b,c) M_OP3(30, ((b)&0x20 ? 1:0), 0, ((((63-(b))&0x1f)<<6) | (((63-(b))&0x20 ? 1:0)<<5) | 0x04), a, c, (b)&0x1f);
162 #define M_SRL(a,b,c) M_OP3(31, 539, 0, 0, a, c, b)
163 #define M_SRL_IMM(a,b,c) M_OP3(30, ((64-(b))&0x20 ? 1:0), 0, (((((b))&0x1f)<<6) | ((((b))&0x20 ? 1:0)<<5) | 0x00), a, c, (64-(b))&0x1f);
164 #define M_SRA(a,b,c) M_OP3(31, 794, 0, 0, a, c, b)
165 #define M_SRA_IMM(a,b,c) M_OP3(31, (826 | ((b)&0x20?1:0)), 0, 0, a, c, ((b)&0x1f))
166 #define M_RLDICL(a,b,c,d) M_OP4(30, ((b)&0x20 ? 1:0), 0, a, d, (b)&0x1f, c)
167 #define M_CNTLZ(a,b) M_OP3(31, 58, 0, 0, a, b, 0)
169 #define M_MUL(a,b,c) M_OP3(31, 233, 0, 0, c, a, b)
170 #define M_MUL_IMM(a,b,c) M_OP2_IMM(7, c, a, b)
171 #define M_DIV(a,b,c) M_OP3(31, 489, 1, 0, c, a, b)
173 #define M_NEG(a,b) M_OP3(31, 104, 0, 0, b, a, 0)
174 #define M_NOT(a,b) M_OP3(31, 124, 0, 0, a, b, a)
176 #define M_SUBFIC(a,b,c) M_OP2_IMM(8, c, a, b)
177 #define M_SUBFZE(a,b) M_OP3(31, 200, 0, 0, b, a, 0)
178 #define M_RLWINM(a,b,c,d,e) M_OP4(21, d, 0, a, e, b, c)
179 #define M_ADDZE(a,b) M_OP3(31, 202, 0, 0, b, a, 0)
180 #define M_ADDIS(a,b,c) M_OP2_IMM(15, c, a, b)
181 #define M_STFIWX(a,b,c) M_OP3(31, 983, 0, 0, a, b, c)
183 #define M_LWAX(a,b,c) M_OP3(31, 341, 0, 0, a, b, c)
184 #define M_LHZX(a,b,c) M_OP3(31, 279, 0, 0, a, b, c)
185 #define M_LHAX(a,b,c) M_OP3(31, 343, 0, 0, a, b, c)
186 #define M_LHAX(a,b,c) M_OP3(31, 343, 0, 0, a, b, c)
187 #define M_LBZX(a,b,c) M_OP3(31, 87, 0, 0, a, b, c)
188 #define M_LFSX(a,b,c) M_OP3(31, 535, 0, 0, a, b, c)
189 #define M_LFDX(a,b,c) M_OP3(31, 599, 0, 0, a, b, c)
191 #define M_STWX(a,b,c) M_OP3(31, 151, 0, 0, a, b, c)
192 #define M_STHX(a,b,c) M_OP3(31, 407, 0, 0, a, b, c)
193 #define M_STBX(a,b,c) M_OP3(31, 215, 0, 0, a, b, c)
194 #define M_STFSX(a,b,c) M_OP3(31, 663, 0, 0, a, b, c)
195 #define M_STFDX(a,b,c) M_OP3(31, 727, 0, 0, a, b, c)
198 #define M_STWU_INTERN(a,b,disp) M_OP2_IMM(37,a,b,disp)
199 #define M_STWU(a,b,disp) \
201 s4 lo = (disp) & 0x0000ffff; \
202 s4 hi = ((disp) >> 16); \
203 if (((disp) >= -32678) && ((disp) <= 32767)) { \
204 M_STWU_INTERN(a,b,lo); \
206 M_ADDIS(REG_ZERO,hi,REG_ITMP3); \
207 M_OR_IMM(REG_ITMP3,lo,REG_ITMP3); \
208 M_STWUX(REG_SP,REG_SP,REG_ITMP3); \
212 #define M_STWUX(a,b,c) M_OP3(31,183,0,0,a,b,c)
215 #define M_STDU_INTERN(a,b,disp) M_OP2_IMM(62,a,b,(disp)|0x0001)
216 #define M_STDU(a,b,disp) \
218 s4 lo = (disp) & 0x0000ffff; \
219 s4 hi = ((disp) >> 16); \
220 if (((disp) >= -32678) && ((disp) <= 32767)) { \
221 M_STDU_INTERN(a,b,lo); \
223 M_ADDIS(REG_ZERO,hi,REG_ITMP3); \
224 M_OR_IMM(REG_ITMP3,lo,REG_ITMP3); \
225 M_STDUX(REG_SP,REG_SP,REG_ITMP3); \
228 #define M_STDUX(a,b,c) M_OP3(31,181,0,0,a,b,c)
230 #define M_LDAH(a,b,c) M_ADDIS(b, c, a)
231 #define M_TRAP M_OP3(31, 4, 0, 0, 31, 0, 0)
233 #define M_NOP M_OR_IMM(0, 0, 0)
234 #define M_MOV(a,b) M_OR(a, a, b)
235 #define M_TST(a) M_OP3(31, 444, 0, 1, a, a, a)
237 #define M_DADD(a,b,c) M_OP3(63, 21, 0, 0, c, a, b)
238 #define M_FADD(a,b,c) M_OP3(59, 21, 0, 0, c, a, b)
239 #define M_DSUB(a,b,c) M_OP3(63, 20, 0, 0, c, a, b)
240 #define M_FSUB(a,b,c) M_OP3(59, 20, 0, 0, c, a, b)
241 #define M_DMUL(a,b,c) M_OP4(63, 25, 0, c, a, 0, b)
242 #define M_FMUL(a,b,c) M_OP4(59, 25, 0, c, a, 0, b)
243 #define M_DDIV(a,b,c) M_OP3(63, 18, 0, 0, c, a, b)
244 #define M_FDIV(a,b,c) M_OP3(59, 18, 0, 0, c, a, b)
246 #define M_FABS(a,b) M_OP3(63, 264, 0, 0, b, 0, a)
247 #define M_CVTDL(a,b) M_OP3(63, 14, 0, 0, b, 0, a)
248 #define M_CVTDL_C(a,b) M_OP3(63, 15, 0, 0, b, 0, a)
249 #define M_CVTDF(a,b) M_OP3(63, 12, 0, 0, b, 0, a)
250 #define M_FMOV(a,b) M_OP3(63, 72, 0, 0, b, 0, a)
251 #define M_FMOVN(a,b) M_OP3(63, 40, 0, 0, b, 0, a)
252 #define M_DSQRT(a,b) M_OP3(63, 22, 0, 0, b, 0, a)
253 #define M_FSQRT(a,b) M_OP3(59, 22, 0, 0, b, 0, a)
255 #define M_FCMPU(a,b) M_OP3(63, 0, 0, 0, 0, a, b)
256 #define M_FCMPO(a,b) M_OP3(63, 32, 0, 0, 0, a, b)
258 #define M_BLDU(a,b,c) M_OP2_IMM(34, a, b, c) /* LBZ */
259 #define M_SLDU(a,b,c) M_OP2_IMM(40, a, b, c) /* LHZ */
262 #define M_ILD_INTERN(a,b,disp) M_OP2_IMM(32,a,b,disp) /* LWZ */
265 #define M_LWZ(a,b,disp) M_OP2_IMM(32,a,b,disp) /* needed for hardware exceptions */
267 #define M_ILD_INTERN(a,b,disp) M_OP2_IMM(58, a, b, (((disp) & 0xfffe) | 0x0002)) /* this is LWA actually */
269 #define M_ILD(a,b,disp) \
271 s4 lo = (short) (disp); \
272 s4 hi = (short) (((disp) - lo) >> 16); \
274 M_ILD_INTERN(a,b,lo); \
277 M_ILD_INTERN(a,a,lo); \
281 #define M_LLD_INTERN(a,b,disp) M_OP2_IMM(58,a,b,disp) /* LD */
283 #define M_LLD(a,b,disp) \
285 s4 lo = (short) (disp); \
286 s4 hi = (short) (((disp) - lo) >> 16); \
288 M_LLD_INTERN(a,b,lo); \
291 M_LLD_INTERN(a,GET_LOW_REG(a),lo); \
295 #define M_ALD_INTERN(a,b,disp) M_LLD_INTERN(a,b,disp)
296 #define M_ALD(a,b,disp) M_LLD(a,b,disp)
297 #define M_ALD_DSEG(a,disp) M_LLD(a,REG_PV,disp)
298 #define M_ALDX(a,b,c) M_OP3(31, 21, 0, 0, a, b, c) /* LDX */
300 #define M_BST(a,b,c) M_OP2_IMM(38, a, b, c) /* STB */
301 #define M_SST(a,b,c) M_OP2_IMM(44, a, b, c) /* LMW */
303 #define M_IST_INTERN(a,b,disp) M_OP2_IMM(36,a,b,disp) /* STW */
305 /* Stores with displacement overflow should only happen with PUTFIELD
306 or on the stack. The PUTFIELD instruction does not use REG_ITMP3
307 and a reg_of_var call should not use REG_ITMP3!!! */
309 #define M_IST(a,b,disp) \
311 s4 lo = (short) (disp); \
312 s4 hi = (short) (((disp) - lo) >> 16); \
314 M_IST_INTERN(a,b,lo); \
316 M_ADDIS(b,hi,REG_ITMP3); \
317 M_IST_INTERN(a,REG_ITMP3,lo); \
321 #define M_LST_INTERN(a,b,disp) M_OP2_IMM(62,a,b,disp) /* STD */
323 #define M_LST(a,b,disp) \
325 s4 lo = (short) (disp); \
326 s4 hi = (short) (((disp) - lo) >> 16); \
328 M_LST_INTERN(a,b,lo); \
330 M_ADDIS(b,hi,REG_ITMP3); \
331 M_LST_INTERN(a,REG_ITMP3, lo); \
335 #define M_AST_INTERN(a,b,disp) M_LST_INTERN(a,b,disp)
336 #define M_AST(a,b,disp) M_LST(a,b,disp)
337 #define M_ASTX(a,b,c) M_OP3(31, 149, 0, 0, a, b, c)
338 #define M_LSTX(a,b,c) M_ASTX(a,b,c)
341 #define M_BSEXT(a,b) M_OP3(31, 954, 0, 0, a, b, 0)
342 #define M_CZEXT(a,b) M_RLWINM(a,0,16,31,b)
343 #define M_SSEXT(a,b) M_OP3(31, 922, 0, 0, a, b, 0)
344 #define M_ISEXT(a,b) M_OP3(31, 986, 0, 0, a, b, 0)
346 #define M_BR(a) M_B(18, a, 0, 0)
347 #define M_BL(a) M_B(18, a, 0, 1)
348 #define M_RET M_OP3(19, 16, 0, 0, 20, 0, 0)
349 #define M_JSR M_OP3(19, 528, 0, 1, 20, 0, 0)
350 #define M_RTS M_OP3(19, 528, 0, 0, 20, 0, 0)
352 #define M_CMP(a,b) M_OP3(31, 0, 0, 0, 1, a, b)
353 #define M_CMPU(a,b) M_OP3(31, 32, 0, 0, 1, a, b)
354 #define M_CMPI(a,b) M_OP2_IMM(11, 1, a, b)
355 #define M_CMPUI(a,b) M_OP2_IMM(10, 1, a, b)
357 #define M_BLT(a) M_BC(16, 12, 0, a, 0, 0)
358 #define M_BLE(a) M_BC(16, 4, 1, a, 0, 0)
359 #define M_BGT(a) M_BC(16, 12, 1, a, 0, 0)
360 #define M_BGE(a) M_BC(16, 4, 0, a, 0, 0)
361 #define M_BEQ(a) M_BC(16, 12, 2, a, 0, 0)
362 #define M_BNE(a) M_BC(16, 4, 2, a, 0, 0)
363 #define M_BNAN(a) M_BC(16, 12, 3, a, 0, 0)
365 #define M_FLD_INTERN(a,b,disp) M_OP2_IMM(48,a,b,disp)
366 #define M_DLD_INTERN(a,b,disp) M_OP2_IMM(50,a,b,disp)
368 #define M_FLD(a,b,disp) \
370 s4 lo = (short) (disp); \
371 s4 hi = (short) (((disp) - lo) >> 16); \
373 M_FLD_INTERN(a,b,lo); \
375 M_ADDIS(b,hi,REG_ITMP3); \
376 M_FLD_INTERN(a,REG_ITMP3,lo); \
380 #define M_DLD(a,b,disp) \
382 s4 lo = (short) (disp); \
383 s4 hi = (short) (((disp) - lo) >> 16); \
385 M_DLD_INTERN(a,b,lo); \
387 M_ADDIS(b,hi,REG_ITMP3); \
388 M_DLD_INTERN(a,REG_ITMP3,lo); \
392 #define M_FST_INTERN(a,b,disp) M_OP2_IMM(52,a,b,disp) /* STFS */
393 #define M_DST_INTERN(a,b,disp) M_OP2_IMM(54,a,b,disp) /* STFD */
395 #define M_FST(a,b,disp) \
397 s4 lo = (short) (disp); \
398 s4 hi = (short) (((disp) - lo) >> 16); \
400 M_FST_INTERN(a,b,lo); \
402 M_ADDIS(b,hi,REG_ITMP3); \
403 M_FST_INTERN(a,REG_ITMP3,lo); \
407 #define M_DST(a,b,disp) \
409 s4 lo = (short) (disp); \
410 s4 hi = (short) (((disp) - lo) >> 16); \
412 M_DST_INTERN(a,b,lo); \
414 M_ADDIS(b,hi,REG_ITMP3); \
415 M_DST_INTERN(a,REG_ITMP3,lo); \
419 #define M_MFLR(a) M_OP3(31, 339, 0, 0, a, 8, 0)
420 #define M_MFXER(a) M_OP3(31, 339, 0, 0, a, 1, 0)
421 #define M_MFCTR(a) M_OP3(31, 339, 0, 0, a, 9, 0)
422 #define M_MTLR(a) M_OP3(31, 467, 0, 0, a, 8, 0)
423 #define M_MTXER(a) M_OP3(31, 467, 0, 0, a, 1, 0)
424 #define M_MTCTR(a) M_OP3(31, 467, 0, 0, a, 9, 0)
426 #define M_LDA_INTERN(a,b,c) M_LADD_IMM(b, c, a)
428 #define M_LDA(a,b,disp) \
430 s4 lo = (short) (disp); \
431 s4 hi = (short) (((disp) - lo) >> 16); \
433 M_LDA_INTERN(a,b,lo); \
436 M_LDA_INTERN(a,a,lo); \
441 #define M_LDATST(a,b,c) M_ADDICTST(b, c, a)
442 #define M_CLR(a) M_LADD_IMM(0, 0, a)
443 #define M_CLR_HIGH(a) M_OP3(30, 0, 0, 0x20, (a), (a), 0);
444 #define M_AADD_IMM(a,b,c) M_LADD_IMM(a, b, c)
446 #define M_DMOV(a,b) M_FMOV(a,b)
448 #define M_ACMP(a,b) M_CMP(a,b)
449 #define M_ICMP(a,b) M_CMP(a,b)
451 #define M_TEST(a) M_TST(a)
453 #endif /* _CODEGEN_H */
457 * These are local overrides for various environment variables in Emacs.
458 * Please do not remove this and leave it at the end of the file, where
459 * Emacs will automagically detect them.
460 * ---------------------------------------------------------------------
463 * indent-tabs-mode: t