1 /* vm/jit/sparc64/codegen.h - code generation macros and definitions for Sparc
3 Copyright (C) 1996-2005, 2006 R. Grafl, A. Krall, C. Kruegel,
4 C. Oates, R. Obermaisser, M. Platter, M. Probst, S. Ring,
5 E. Steiner, C. Thalinger, D. Thuernbeck, P. Tomsich, C. Ullrich,
6 J. Wenninger, Institut f. Computersprachen - TU Wien
8 This file is part of CACAO.
10 This program is free software; you can redistribute it and/or
11 modify it under the terms of the GNU General Public License as
12 published by the Free Software Foundation; either version 2, or (at
13 your option) any later version.
15 This program is distributed in the hope that it will be useful, but
16 WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 General Public License for more details.
20 You should have received a copy of the GNU General Public License
21 along with this program; if not, write to the Free Software
22 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
25 Contact: cacao@cacaojvm.org
27 Authors: Andreas Krall
33 $Id: codegen.h 4722 2006-04-03 15:36:00Z twisti $
43 #include "vm/jit/jit.h"
46 s4 nat_argintregs[INT_NATARG_CNT];
48 /* branch defines *************************************************************/
57 /* patcher defines ************************************************************/
59 #define PATCHER_CALL_INSTRUCTIONS 2 /* number of instructions */
60 #define PATCHER_CALL_SIZE 2 * 4 /* size in bytes of a patcher call */
62 #define PATCHER_NOPS \
69 /* additional functions and macros to generate code ***************************/
71 #define gen_nullptr_check(objreg) \
74 codegen_add_nullpointerexception_ref(cd); \
78 #define gen_bound_check \
80 M_ILD(REG_ITMP3, s1, OFFSET(java_arrayheader, size)); \
81 M_CMP(s2, REG_ITMP3); \
83 codegen_add_arrayindexoutofboundsexception_ref(cd, s2); \
87 #define gen_div_check(r) \
90 codegen_add_arithmeticexception_ref(cd); \
94 /* MCODECHECK(icnt) */
96 #define MCODECHECK(icnt) \
98 if ((cd->mcodeptr + (icnt) * 4) > cd->mcodeend) \
99 codegen_increase(cd); \
103 #define ALIGNCODENOP \
104 if ((s4) ((ptrint) cd->mcodeptr & 7)) { \
110 generates an integer-move from register rs to rd.
111 if rs and rd are the same int-register, no code will be generated.
114 #define M_INTMOVE(rs,rd) if (rs != rd) { M_MOV(rs, rd); }
118 generates a double floating-point-move from register (pair) rs to rd.
119 if rs and rd are the same double-register, no code will be generated
122 #define M_DBLMOVE(rs, rd) if (rs != rd) { M_DMOV (rs, rd); }
126 generates a double floating-point-move from pseudo register rs to rd.
127 (ie. lower register of double rs pair to lower register of double rd pair)
128 if rs and rd are the same double-register, no code will be generated
130 #define M_FLTMOVE(rs, rd) if (rs != rd) { M_FMOV (rs, rd); }
134 #define M_COPY(s,d) emit_copy(jd, iptr, (s), (d))
135 #define ICONST(d,c) emit_iconst(cd, (d), (c))
136 #define LCONST(d,c) emit_lconst(cd, (d), (c))
141 /********************** instruction formats ***********************************/
146 /* 3-address-operations: M_OP3
148 * op3 ..... operation
149 * rs1 ..... register number source 1
150 * rs2 ..... register number or constant integer source 2
151 * rd ..... register number destination
152 * imm ..... switch to use rs2 as constant 13bit integer
153 * (REG means: use b as register number)
154 * (IMM means: use b as signed immediate value)
156 #define M_OP3(op,op3,rd,rs1,rs2,imm) \
158 *((u4 *) cd->mcodeptr) = ((((s4) (op)) << 30) | ((rd) << 25) | ((op3) << 19) | ((rs1) << 14) | ((imm)<<13) | (imm?((rs2)&0x1fff):(rs2)) ); \
163 /* 3-address-operations: M_OP3C
164 * rcond ... condition opcode
165 * rs2 ..... register number or 10bit signed immediate
168 #define M_OP3C(op,op3,rcond,rd,rs1,rs2,imm) \
170 *((u4 *) cd->mcodeptr) = ((((s4) (op)) << 30) | ((rd) << 25) | ((op3) << 19) | ((rs1) << 14) | ((imm)<<13) | \
171 ((rcond) << 10) | (imm?((rs2)&0x3ff):(rs2)) ); \
180 * rs2 .... source 2 or constant
182 * imm .... switch for constant
183 * x ...... 0 => 32, 1 => 64 bit shift
185 #define M_SHFT(op,op3,rs1,rs2,rd,imm,x) \
187 *((u4 *) cd->mcodeptr) = ( (((s4)(op)) << 30) | ((op3) << 19) | ((rd) << 25) | ((rs1) << 14) | ((rs2) << 0) | \
188 ((imm) << 13) | ((x) << 12) ); \
196 * cond ... condition opcode
197 * rs2 .... source 2 or signed 11-bit constant
199 * imm .... switch for constant
200 * cc{0-2} 32-bit 64-bit or fp condition
202 #define M_FMT4(op,op3,rd,rs2,cond,cc2,cc1,cc0,imm) \
204 *((u4 *) cd->mcodeptr) = ( (((s4)(op)) << 30) | ((op3) << 19) | ((rd) << 25) | ((cc2) << 18) | ((cond) << 14) | \
205 ((imm) << 13) | ((cc1) << 12) | ((cc0) << 11) | ((rs2) << 0) ); \
210 #define FR_X(r) (((r)<<2) + 1)
211 #define DR_X(r) (((r)<<2)|((r)>>5))
213 /* 3-address-floating-point-operation
215 * op3,opf .... function-number
217 * rs1 ... source reg (-1 signals unused)
222 #define M_FOP3(op,op3,opf,rd,rs1,rs2) \
224 *((u4 *) cd->mcodeptr) = ( (((s4)(op))<<30) | ((rd)<<25) | ((op3)<<19) | ((((rs1)==-1)?0:(rs1)) << 14) | \
225 ((opf)<<5) | (rs2) ); \
228 /* float addressing */
229 #define M_FOP3_FX(op,op3,opf,rd,rs1,rs2) \
231 *((u4 *) cd->mcodeptr) = ( (((s4)(op))<<30) | (FR_X(rd)<<25) | ((op3)<<19) | ((((rs1)==-1)?0:FR_X(rs1)) << 14) | \
232 ((opf)<<5) | FR_X(rs2) ); \
235 /* double addressing */
236 #define M_FOP3_DX(op,op3,opf,rd,rs1,rs2) \
238 *((u4 *) cd->mcodeptr) = ( (((s4)(op))<<30) | (DR_X(rd)<<25) | ((op3)<<19) | ((((rs1)==-1)?0:DR_X(rs1)) << 14) | \
239 ((opf)<<5) | DR_X(rs2) ); \
243 /**** format 2 operations ********/
245 /* branch on integer reg instruction
247 rcond ...... condition to be tested
248 disp16 ... 16-bit relative address to be jumped to (divided by 4)
249 rs1 ..... register to be tested
250 p ..... prediction bit
251 anul .... annullment bit
253 #define M_BRAREG(op,rcond,rs1,disp16,p,anul) \
255 *((u4 *) cd->mcodeptr) = ( (((s4)(op))<<30) | ((anul)<<29) | (0<<28) | ((rcond)<<25) | (3<<22) | \
256 ( ((disp16)& 0xC000) << 6 ) | (p << 19) | ((rs1) << 14) | ((disp16)&0x3fff) ); \
261 /* branch on integer reg instruction
263 cond ...... condition to be tested
264 disp19 ... 19-bit relative address to be jumped to (divided by 4)
265 ccx ..... 32(0) or 64(2) bit test
266 p ..... prediction bit
267 anul .... annullment bit
269 #define M_BRACC(op,op2,cond,disp19,ccx,p,anul) \
271 *((u4 *) cd->mcodeptr) = ( (((s4)(op))<<30) | ((anul)<<29) | ((cond)<<25) | (op2<<22) | (ccx<<20) | \
272 (p << 19 ) | ((disp19) & 0x007ffff) ); \
277 /************** end-user instructions (see a SPARC asm manual) ***************/
279 #define M_SETHI(imm22, rd) \
281 *((u4 *) cd->mcodeptr) = ((((s4)(0x00)) << 30) | ((rd) << 25) | ((0x04)<<22) | ((imm22)&0x3FFFFF) ); \
287 #define M_NOP M_SETHI(0,0) /* nop */
289 #define M_AND(rs1,rs2,rd) M_OP3(0x02,0x01,rd,rs1,rs2,REG) /* 64b c = a & b */
290 #define M_AND_IMM(rs1,rs2,rd) M_OP3(0x02,0x01,rd,rs1,rs2,IMM)
291 #define M_ANDCC(rs1,rs2,rd) M_OP3(0x02,0x11,rd,rs1,rs2,REG)
292 #define M_ANDCC_IMM(rs1,rs2,rd) M_OP3(0x02,0x11,rd,rs1,rs2,IMM)
294 #define M_OR(rs1,rs2,rd) M_OP3(0x02,0x02,rd,rs1,rs2,REG) /* rd = rs1 | rs2 */
295 #define M_OR_IMM(rs1,rs2,rd) M_OP3(0x02,0x02,rd,rs1,rs2,IMM)
296 #define M_XOR(rs1,rs2,rd) M_OP3(0x02,0x03,rd,rs1,rs2,REG) /* rd = rs1 ^ rs2 */
297 #define M_XOR_IMM(rs1,rs2,rd) M_OP3(0x02,0x03,rd,rs1,rs2,IMM)
299 #define M_MOV(rs,rd) M_OR(REG_ZERO, rs, rd) /* rd = rs */
303 #define M_SLLX(rs1,rs2,rd) M_SHFT(0x02,0x25,rs1,rs2,rd,REG,1) /* 64b rd = rs << rs2 */
304 #define M_SLLX_IMM(rs1,rs2,rd) M_SHFT(0x02,0x25,rs1,rs2,rd,IMM,1)
305 #define M_SRLX(rs1,rs2,rd) M_SHFT(0x02,0x26,rs1,rs2,rd,REG,1) /* 64b rd = rs >>>rs2 */
306 #define M_SRLX_IMM(rs1,rs2,rd) M_SHFT(0x02,0x26,rs1,rs2,rd,IMM,1)
307 #define M_SRL(rs1,rs2,rd) M_SHFT(0x02,0x26,rs1,rs2,rd,REG,0) /* 32b rd = rs >>>rs2 */
308 #define M_SRL_IMM(rs1,rs2,rd) M_SHFT(0x02,0x26,rs1,rs2,rd,IMM,0)
309 #define M_SRAX(rs1,rs2,rd) M_SHFT(0x02,0x27,rs1,rs2,rd,REG,1) /* 64b rd = rs >> rs2 */
310 #define M_SRAX_IMM(rs1,rs2,rd) M_SHFT(0x02,0x27,rs1,rs2,rd,IMM,1)
311 #define M_SRA(rs1,rs2,rd) M_SHFT(0x02,0x27,rs1,rs2,rd,REG,0) /* 32b rd = rs >> rs2 */
312 #define M_SRA_IMM(rs1,rs2,rd) M_SHFT(0x02,0x27,rs1,rs2,rd,IMM,0)
314 #define M_ISEXT(rs,rd) M_SRA_IMM(rs,0,rd) /* sign extend 32 bits*/
317 #define M_ADD(rs1,rs2,rd) M_OP3(0x02,0x00,rd,rs1,rs2,REG) /* 64b rd = rs1 + rs2 */
318 #define M_ADD_IMM(rs1,rs2,rd) M_OP3(0x02,0x00,rd,rs1,rs2,IMM)
319 #define M_SUB(rs1,rs2,rd) M_OP3(0x02,0x04,rd,rs1,rs2,REG) /* 64b rd = rs1 - rs2 */
320 #define M_SUB_IMM(rs1,rs2,rd) M_OP3(0x02,0x04,rd,rs1,rs2,IMM)
321 #define M_MULX(rs1,rs2,rd) M_OP3(0x02,0x09,rd,rs1,rs2,REG) /* 64b rd = rs1 * rs2 */
322 #define M_MULX_IMM(rs1,rs2,rd) M_OP3(0x02,0x09,rd,rs1,rs2,IMM)
323 #define M_DIVX(rs1,rs2,rd) M_OP3(0x02,0x2d,rd,rs1,rs2,REG) /* 64b rd = rs1 / rs2 */
327 /**** compare and conditional ALU operations ***********/
329 #define M_CMP(rs1,rs2) M_SUB(rs1,rs2,REG_ZERO) /* sets xcc and icc */
330 #define M_CMP_IMM(rs1,rs2) M_SUB_IMM(rs1,rs2,REG_ZERO)
332 /* move integer register on (64-bit) condition */
334 #define M_XCMOVEQ(rs,rd) M_FMT4(0x2,0x2c,rd,rs,0x1,1,1,0,REG) /* a==b ? rd=rs */
335 #define M_XCMOVNE(rs,rd) M_FMT4(0x2,0x2c,rd,rs,0x9,1,1,0,REG) /* a!=b ? rd=rs */
336 #define M_XCMOVLT(rs,rd) M_FMT4(0x2,0x2c,rd,rs,0x3,1,1,0,REG) /* a<b ? rd=rs */
337 #define M_XCMOVGE(rs,rd) M_FMT4(0x2,0x2c,rd,rs,0xb,1,1,0,REG) /* a>=b ? rd=rs */
338 #define M_XCMOVLE(rs,rd) M_FMT4(0x2,0x2c,rd,rs,0x2,1,1,0,REG) /* a<=b ? rd=rs */
339 #define M_XCMOVGT(rs,rd) M_FMT4(0x2,0x2c,rd,rs,0xa,1,1,0,REG) /* a>b ? rd=rs */
341 #define M_XCMOVEQ_IMM(rs,rd) M_FMT4(0x2,0x2c,rd,rs,0x1,1,1,0,IMM) /* a==b ? rd=rs */
342 #define M_XCMOVNE_IMM(rs,rd) M_FMT4(0x2,0x2c,rd,rs,0x9,1,1,0,IMM) /* a!=b ? rd=rs */
343 #define M_XCMOVLT_IMM(rs,rd) M_FMT4(0x2,0x2c,rd,rs,0x3,1,1,0,IMM) /* a<b ? rd=rs */
344 #define M_XCMOVGE_IMM(rs,rd) M_FMT4(0x2,0x2c,rd,rs,0xb,1,1,0,IMM) /* a>=b ? rd=rs */
345 #define M_XCMOVLE_IMM(rs,rd) M_FMT4(0x2,0x2c,rd,rs,0x2,1,1,0,IMM) /* a<=b ? rd=rs */
346 #define M_XCMOVGT_IMM(rs,rd) M_FMT4(0x2,0x2c,rd,rs,0xa,1,1,0,IMM) /* a>b ? rd=rs */
348 /* move integer register on (fcc0) floating point condition */
350 #define M_CMOVFGT_IMM(rs,rd) M_FMT4(0x2,0x2c,rd,rs,0x6,0,0,0,IMM) /* fa>fb ? rd=rs */
351 #define M_CMOVFLT_IMM(rs,rd) M_FMT4(0x2,0x2c,rd,rs,0x4,0,0,0,IMM) /* fa<fb ? rd=rs */
352 #define M_CMOVFEQ_IMM(rs,rd) M_FMT4(0x2,0x2c,rd,rs,0x9,0,0,0,IMM) /* fa==fb ? rd=rs */
354 /* move integer register on (32-bit) condition */
358 /* move integer register on register condition */
360 #define M_CMOVREQ(rs1,rs2,rd) M_OP3C(0x2,0x2f,0x1,rd,rs1,rs2,REG) /* rs1==0 ? rd=rs2 */
361 #define M_CMOVRNE(rs1,rs2,rd) M_OP3C(0x2,0x2f,0x5,rd,rs1,rs2,REG) /* rs1!=0 ? rd=rs2 */
362 #define M_CMOVRLE(rs1,rs2,rd) M_OP3C(0x2,0x2f,0x2,rd,rs1,rs2,REG) /* rs1<=0 ? rd=rs2 */
363 #define M_CMOVRLT(rs1,rs2,rd) M_OP3C(0x2,0x2f,0x3,rd,rs1,rs2,REG) /* rs1<0 ? rd=rs2 */
364 #define M_CMOVRGT(rs1,rs2,rd) M_OP3C(0x2,0x2f,0x6,rd,rs1,rs2,REG) /* rs1>0 ? rd=rs2 */
365 #define M_CMOVRGE(rs1,rs2,rd) M_OP3C(0x2,0x2f,0x7,rd,rs1,rs2,REG) /* rs1>=0 ? rd=rs2 */
367 #define M_CMOVREQ_IMM(rs1,rs2,rd) M_OP3C(0x2,0x2f,0x1,rd,rs1,rs2,IMM) /* rs1==0 ? rd=rs2 */
368 #define M_CMOVRNE_IMM(rs1,rs2,rd) M_OP3C(0x2,0x2f,0x5,rd,rs1,rs2,IMM) /* rs1!=0 ? rd=rs2 */
369 #define M_CMOVRLE_IMM(rs1,rs2,rd) M_OP3C(0x2,0x2f,0x2,rd,rs1,rs2,IMM) /* rs1<=0 ? rd=rs2 */
370 #define M_CMOVRLT_IMM(rs1,rs2,rd) M_OP3C(0x2,0x2f,0x3,rd,rs1,rs2,IMM) /* rs1<0 ? rd=rs2 */
371 #define M_CMOVRGT_IMM(rs1,rs2,rd) M_OP3C(0x2,0x2f,0x6,rd,rs1,rs2,IMM) /* rs1>0 ? rd=rs2 */
372 #define M_CMOVRGE_IMM(rs1,rs2,rd) M_OP3C(0x2,0x2f,0x7,rd,rs1,rs2,IMM) /* rs1>=0 ? rd=rs2 */
375 /**** load/store operations ********/
377 #define M_LDA(rd,rs,disp) \
379 s4 lo = (short) (disp); \
380 s4 hi = (short) (((disp) - lo) >> 13); \
382 M_AADD_IMM(rs,lo,rd); \
384 M_SETHI(hi&0x3ffff8,rd); \
385 M_AADD_IMM(rd,lo,rd); \
390 #define M_SLDU(rd,rs,disp) M_OP3(0x03,0x02,rd,rs,disp,IMM) /* 16-bit load, uns*/
391 #define M_SLDS(rd,rs,disp) M_OP3(0x03,0x0a,rd,rs,disp,IMM) /* 16-bit load, sig*/
392 #define M_BLDS(rd,rs,disp) M_OP3(0x03,0x09,rd,rs,disp,IMM) /* 8-bit load, sig */
395 #define M_LDX_INTERN(rd,rs,disp) M_OP3(0x03,0x0b,rd,rs,disp,IMM) /* 64-bit load, sig*/
396 #define M_LDX(rd,rs,disp) \
398 s4 lo = (short) (disp); \
399 s4 hi = (short) (((disp) - lo) >> 13); \
401 M_LDX_INTERN(rd,rs,lo); \
403 M_SETHI(hi&0x3ffff8,rd); \
405 M_LDX_INTERN(rd,rd,lo); \
409 #define M_ILD_INTERN(rd,rs,disp) M_OP3(0x03,0x08,rd,rs,disp,IMM) /* 32-bit load, sig */
410 #define M_ILD(rd,rs,disp) \
412 s4 lo = (short) (disp); \
413 s4 hi = (short) (((disp) - lo) >> 13); \
415 M_ILD_INTERN(rd,rs,lo); \
417 M_SETHI(hi&0x3ffff8,rd); \
419 M_ILD_INTERN(rd,rd,lo); \
425 #define M_SST(rd,rs,disp) M_OP3(0x03,0x06,rd,rs,disp,IMM) /* 16-bit store */
426 #define M_BST(rd,rs,disp) M_OP3(0x03,0x05,rd,rs,disp,IMM) /* 8-bit store */
428 /* Stores with displacement overflow should only happen with PUTFIELD or on */
429 /* the stack. The PUTFIELD instruction does not use REG_ITMP3 and a */
430 /* reg_of_var call should not use REG_ITMP3!!! */
432 #define M_STX_INTERN(rd,rs,disp) M_OP3(0x03,0x0e,rd,rs,disp,IMM) /* 64-bit store */
433 #define M_STX(rd,rs,disp) \
435 s4 lo = (short) (disp); \
436 s4 hi = (short) (((disp) - lo) >> 13); \
438 M_STX_INTERN(rd,rs,lo); \
440 M_SETHI(hi&0x3ffff8,REG_ITMP3); /* sethi has a 22bit imm, only set upper 19 bits */ \
441 M_AADD(rs,REG_ITMP3,REG_ITMP3); \
442 M_STX_INTERN(rd,REG_ITMP3,lo); \
447 #define M_IST_INTERN(rd,rs,disp) M_OP3(0x03,0x04,rd,rs,disp,IMM) /* 32-bit store */
448 #define M_IST(rd,rs,disp) \
450 s4 lo = (short) (disp); \
451 s4 hi = (short) (((disp) - lo) >> 13); \
453 M_IST_INTERN(rd,rs,lo); \
455 M_SETHI(hi&0x3ffff8,REG_ITMP3); /* sethi has a 22bit imm, only set upper 19 bits */ \
456 M_AADD(rs,REG_ITMP3,REG_ITMP3); \
457 M_IST_INTERN(rd,REG_ITMP3,lo); \
462 /**** branch operations ********/
463 /* XXX prediction and annul bits currently set to defaults, but could be used for optimizations */
465 /* branch on integer register */
467 #define M_BEQZ(r,disp) M_BRAREG(0x0,0x1,r,disp,1,0) /* br r == 0 */
468 #define M_BLEZ(r,disp) M_BRAREG(0x0,0x2,r,disp,1,0) /* br r <= 0 */
469 #define M_BLTZ(r,disp) M_BRAREG(0x0,0x3,r,disp,1,0) /* br r < 0 */
470 #define M_BNEZ(r,disp) M_BRAREG(0x0,0x5,r,disp,1,0) /* br r != 0 */
471 #define M_BGTZ(r,disp) M_BRAREG(0x0,0x6,r,disp,1,0) /* br r > 0 */
472 #define M_BGEZ(r,disp) M_BRAREG(0x0,0x7,r,disp,1,0) /* br r >= 0 */
475 /* branch on (64-bit) integer condition codes */
477 #define M_XBEQ(disp) M_BRACC(0x00,0x1,0x1,disp,2,1,0) /* branch a==b */
478 #define M_XBNE(disp) M_BRACC(0x00,0x1,0x9,disp,2,1,0) /* branch a!=b */
479 #define M_XBGT(disp) M_BRACC(0x00,0x1,0xa,disp,2,1,0) /* branch a>b */
480 #define M_XBLT(disp) M_BRACC(0x00,0x1,0x3,disp,2,1,0) /* branch a<b */
481 #define M_XBGE(disp) M_BRACC(0x00,0x1,0xb,disp,2,1,0) /* branch a>=b */
482 #define M_XBLE(disp) M_BRACC(0x00,0x1,0x2,disp,2,1,0) /* branch a<=b */
483 #define M_XBUGE(disp) M_BRACC(0x00,0x1,0xd,disp,2,1,0) /* br uns a>=b */
484 #define M_XBULT(disp) M_BRACC(0x00,0x1,0x5,disp,2,1,0) /* br uns a<b */
486 /* branch on (32-bit) integer condition codes */
488 #define M_BR(disp) M_BRACC(0x00,0x1,0x8,disp,0,1,0) /* branch */
489 #define M_BEQ(disp) M_BRACC(0x00,0x1,0x1,disp,0,1,0) /* branch a==b */
490 #define M_BNE(disp) M_BRACC(0x00,0x1,0x9,disp,0,1,0) /* branch a!=b */
491 #define M_BGT(disp) M_BRACC(0x00,0x1,0xa,disp,0,1,0) /* branch a>b */
492 #define M_BLT(disp) M_BRACC(0x00,0x1,0x3,disp,0,1,0) /* branch a<b */
493 #define M_BGE(disp) M_BRACC(0x00,0x1,0xb,disp,0,1,0) /* branch a>=b */
494 #define M_BLE(disp) M_BRACC(0x00,0x1,0x2,disp,0,1,0) /* branch a<=b */
495 #define M_BULE(disp) M_BRACC(0x00,0x1,0x4,disp,0,1,0) /* br uns a<=b */
496 #define M_BULT(disp) M_BRACC(0x00,0x1,0x5,disp,0,1,0) /* br uns a<b */
500 #define M_SAVE(rs1,rs2,rd) M_OP3(0x02,0x3c,rd,rs1,rs2,IMM)
501 #define M_RESTORE(rs1,rs2,rd) M_OP3(0x02,0x3d,rd,rs1,rs2,IMM)
505 #define M_JMP(rd,rs1,rs2) M_OP3(0x02,0x38,rd, rs1,rs2,REG) /* jump to rs1+rs2, adr of instr. saved to rd */
506 #define M_JMP_IMM(rd,rs1,rs2) M_OP3(0x02,0x38,rd, rs1,rs2,IMM)
507 #define M_RET(rs1,imm) M_OP3(0x02,0x38,REG_ZERO,rs1,imm,IMM) /* a jump which discards the current pc */
509 #define M_RETURN(rs1,imm) M_OP3(0x02,0x39,0,rs1,imm,IMM) /* like ret, but does window restore */
511 /**** floating point operations **/
514 #define M_DMOV(rs,rd) M_FOP3_DX(0x02,0x34,0x02,rd,-1,rs) /* rd = rs */
515 #define M_FMOV(rs,rd) M_FOP3_FX(0x02,0x34,0x01,rd,-1,rs) /* rd = rs */
517 #define M_FNEG(rs,rd) M_FOP3_FX(0x02,0x34,0x05,rd,-1,rs) /* rd = -rs */
518 #define M_DNEG(rs,rd) M_FOP3_DX(0x02,0x34,0x06,rd,-1,rs) /* rd = -rs */
520 #define M_FADD(rs1,rs2,rd) M_FOP3_FX(0x02,0x34,0x41,rd,rs1,rs2) /* float add */
521 #define M_DADD(rs1,rs2,rd) M_FOP3_DX(0x02,0x34,0x42,rd,rs1,rs2) /* double add */
522 #define M_FSUB(rs1,rs2,rd) M_FOP3_FX(0x02,0x34,0x045,rd,rs1,rs2) /* float sub */
523 #define M_DSUB(rs1,rs2,rd) M_FOP3_DX(0x02,0x34,0x046,rd,rs1,rs2) /* double sub */
524 #define M_FMUL(rs1,rs2,rd) M_FOP3_FX(0x02,0x34,0x049,rd,rs1,rs2) /* float mul */
525 #define M_DMUL(rs1,rs2,rd) M_FOP3_DX(0x02,0x34,0x04a,rd,rs1,rs2) /* double mul */
526 #define M_FDIV(rs1,rs2,rd) M_FOP3_FX(0x02,0x34,0x04d,rd,rs1,rs2) /* float div */
527 #define M_DDIV(rs1,rs2,rd) M_FOP3_DX(0x02,0x34,0x04e,rd,rs1,rs2) /* double div */
530 /**** compare and conditional FPU operations ***********/
532 /* rd field 0 ==> fcc target unit is fcc0 */
533 #define M_FCMP(rs1,rs2) M_FOP3_FX(0x02,0x35,0x051,0,rs1,rs2) /* set fcc flt */
534 #define M_DCMP(rs1,rs2) M_FOP3_DX(0x02,0x35,0x052,0,rs1,rs2) /* set fcc dbl */
536 /* conversion functions */
538 #define M_CVTIF(rs,rd) M_FOP3_FX(0x02,0x34,0x0c4,rd,-1,rs)/* int2flt */
539 #define M_CVTID(rs,rd) M_FOP3(0x02,0x34,0x0c8,DR_X(rd),-1,FR_X(rs)) /* int2dbl */
540 #define M_CVTLF(rs,rd) M_FOP3(0x02,0x34,0x084,FR_X(rd),-1,DR_X(rs)) /* long2flt */
541 #define M_CVTLD(rs,rd) M_FOP3_DX(0x02,0x34,0x088,rd,-1,rs) /* long2dbl */
543 #define M_CVTFI(rs,rd) M_FOP3_FX(0x02,0x34,0x0d1,rd,-1,rs) /* flt2int */
544 #define M_CVTDI(rs,rd) M_FOP3(0x02,0x34,0x0d2,FR_X(rd),-1,DR_X(rs)) /* dbl2int */
545 #define M_CVTFL(rs,rd) M_FOP3(0x02,0x34,0x081,DR_X(rd),-1,FR_X(rs)) /* flt2long */
546 #define M_CVTDL(rs,rd) M_FOP3_DX(0x02,0x34,0x082,rd,-1,rs) /* dbl2long */
548 #define M_CVTFD(rs,rd) M_FOP3(0x02,0x34,0x0c9,DR_X(rs),-1,FR_X(rs)) /* flt2dbl */
549 #define M_CVTDF(rs,rd) M_FOP3(0x02,0x34,0x0c6,FR_X(rs),-1,DR_X(rs)) /* dbl2float */
553 #define M_DLD_INTERN(rd,rs1,disp) M_OP3(0x03,0x23,DR_X(rd),rs1,disp,IMM) /* double (64-bit) load */
554 #define M_DLD(rd,rs,disp) \
556 s4 lo = (short) (disp); \
557 s4 hi = (short) (((disp) - lo) >> 13); \
559 M_DLD_INTERN(rd,rs,lo); \
561 M_SETHI(hi&0x3ffff8,rd); \
563 M_DLD_INTERN(rd,rd,lo); \
566 /* Note for SETHI: sethi has a 22bit imm, only set upper 19 bits */
568 #define M_FLD_INTERN(rd,rs1,disp) M_OP3(0x03,0x20,FR_X(rd),rs1,disp,IMM) /* float (32-bit) load */
569 #define M_FLD(rd,rs,disp) \
571 s4 lo = (short) (disp); \
572 s4 hi = (short) (((disp) - lo) >> 13); \
574 M_FLD_INTERN(rd,rs,lo); \
576 M_SETHI(hi&0x3ffff8,rd); \
578 M_FLD_INTERN(rd,rd,lo); \
583 #define M_FST_INTERN(rd,rs,disp) M_OP3(0x03,0x24,FR_X(rd),rs,disp,IMM) /* float (32-bit) store */
584 #define M_FST(rd,rs,disp) \
586 s4 lo = (short) (disp); \
587 s4 hi = (short) (((disp) - lo) >> 13); \
589 M_FST_INTERN(rd,rs,lo); \
591 M_SETHI(hi&0x3ffff8,REG_ITMP3); \
592 M_AADD(rs,REG_ITMP3,REG_ITMP3); \
593 M_FST_INTERN(rd,REG_ITMP3,lo); \
598 #define M_DST_INTERN(rd,rs1,disp) M_OP3(0x03,0x27,DR_X(rd),rs1,disp,IMM) /* double (64-bit) store */
599 #define M_DST(rd,rs,disp) \
601 s4 lo = (short) (disp); \
602 s4 hi = (short) (((disp) - lo) >> 13); \
604 M_DST_INTERN(rd,rs,lo); \
606 M_SETHI(hi&0x3ffff8,REG_ITMP3); \
607 M_AADD(rs,REG_ITMP3,REG_ITMP3); \
608 M_DST_INTERN(rd,REG_ITMP3,lo); \
615 * Address pseudo instruction
618 #define POINTERSHIFT 3 /* x8 */
621 #define M_ALD_INTERN(a,b,disp) M_LDX_INTERN(a,b,disp)
622 #define M_ALD(rd,rs,disp) M_LDX(rd,rs,disp)
623 #define M_AST_INTERN(a,b,disp) M_STX_INTERN(a,b,disp)
624 #define M_AST(a,b,disp) M_STX(a,b,disp)
625 #define M_AADD(a,b,c) M_ADD(a,b,c)
626 #define M_AADD_IMM(a,b,c) M_ADD_IMM(a,b,c)
627 #define M_ASUB_IMM(a,b,c) M_SUB_IMM(a,b,c)
628 #define M_ASLL_IMM(a,b,c) M_SLLX_IMM(a,b,c)
633 /* var_to_reg_xxx **************************************************************
635 This function generates code to fetch data from a pseudo-register
636 into a real register. If the pseudo-register has actually been
637 assigned to a real register, no code will be emitted, since
638 following operations can use this register directly.
640 v: pseudoregister to be fetched from
641 tempregnum: temporary register to be used if v is actually spilled to ram
643 return: the register number, where the operand can be found after
644 fetching (this wil be either tempregnum or the register
645 number allready given to v)
647 *******************************************************************************/
649 #define var_to_reg_int(regnr,v,tempnr) \
651 if ((v)->flags & INMEMORY) { \
653 M_LDX(tempnr, REG_SP, (v)->regoff * 8); \
656 regnr = (v)->regoff; \
661 /* gen_resolvebranch ***********************************************************
663 * backpatches a branch instruction
664 * On Sparc all there is to do, is replace the 22bit disp at the end of the
666 * THIS APPLIES TO THE (V8) BICC INSTRUCTION ONLY.
668 * parameters: ip ... pointer to instruction after branch (void*)
669 * so ... offset of instruction after branch (s4)
670 * to ... offset of branch target (s4)
672 *******************************************************************************/
674 #define gen_resolvebranch(ip,so,to) \
675 ((s4 *) (ip))[-1] |= ((s4) (to) - (so)) >> 2 & 0x1fffff
681 #endif /* _CODEGEN_H */