1 /*
2 * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 #ifndef CPU_X86_VM_ASSEMBLER_X86_HPP
26 #define CPU_X86_VM_ASSEMBLER_X86_HPP
27
28 #include "asm/register.hpp"
29
30 class BiasedLockingCounters;
31
32 // Contains all the definitions needed for x86 assembly code generation.
33
34 // Calling convention
35 class Argument VALUE_OBJ_CLASS_SPEC {
36 public:
37 enum {
38 #ifdef _LP64
39 #ifdef _WIN64
40 n_int_register_parameters_c = 4, // rcx, rdx, r8, r9 (c_rarg0, c_rarg1, ...)
41 n_float_register_parameters_c = 4, // xmm0 - xmm3 (c_farg0, c_farg1, ... )
42 #else
43 n_int_register_parameters_c = 6, // rdi, rsi, rdx, rcx, r8, r9 (c_rarg0, c_rarg1, ...)
44 n_float_register_parameters_c = 8, // xmm0 - xmm7 (c_farg0, c_farg1, ... )
45 #endif // _WIN64
46 n_int_register_parameters_j = 6, // j_rarg0, j_rarg1, ...
47 n_float_register_parameters_j = 8 // j_farg0, j_farg1, ...
48 #else
49 n_register_parameters = 0 // 0 registers used to pass arguments
50 #endif // _LP64
51 };
52 };
53
54
55 #ifdef _LP64
56 // Symbolically name the register arguments used by the c calling convention.
57 // Windows is different from linux/solaris. So much for standards...
58
59 #ifdef _WIN64
60
61 REGISTER_DECLARATION(Register, c_rarg0, rcx);
62 REGISTER_DECLARATION(Register, c_rarg1, rdx);
63 REGISTER_DECLARATION(Register, c_rarg2, r8);
64 REGISTER_DECLARATION(Register, c_rarg3, r9);
65
66 REGISTER_DECLARATION(XMMRegister, c_farg0, xmm0);
67 REGISTER_DECLARATION(XMMRegister, c_farg1, xmm1);
68 REGISTER_DECLARATION(XMMRegister, c_farg2, xmm2);
69 REGISTER_DECLARATION(XMMRegister, c_farg3, xmm3);
70
71 #else
72
73 REGISTER_DECLARATION(Register, c_rarg0, rdi);
74 REGISTER_DECLARATION(Register, c_rarg1, rsi);
75 REGISTER_DECLARATION(Register, c_rarg2, rdx);
76 REGISTER_DECLARATION(Register, c_rarg3, rcx);
77 REGISTER_DECLARATION(Register, c_rarg4, r8);
78 REGISTER_DECLARATION(Register, c_rarg5, r9);
79
80 REGISTER_DECLARATION(XMMRegister, c_farg0, xmm0);
81 REGISTER_DECLARATION(XMMRegister, c_farg1, xmm1);
82 REGISTER_DECLARATION(XMMRegister, c_farg2, xmm2);
83 REGISTER_DECLARATION(XMMRegister, c_farg3, xmm3);
84 REGISTER_DECLARATION(XMMRegister, c_farg4, xmm4);
85 REGISTER_DECLARATION(XMMRegister, c_farg5, xmm5);
86 REGISTER_DECLARATION(XMMRegister, c_farg6, xmm6);
87 REGISTER_DECLARATION(XMMRegister, c_farg7, xmm7);
88
89 #endif // _WIN64
90
91 // Symbolically name the register arguments used by the Java calling convention.
92 // We have control over the convention for java so we can do what we please.
93 // What pleases us is to offset the java calling convention so that when
94 // we call a suitable jni method the arguments are lined up and we don't
95 // have to do little shuffling. A suitable jni method is non-static and a
96 // small number of arguments (two fewer args on windows)
97 //
98 // |-------------------------------------------------------|
99 // | c_rarg0 c_rarg1 c_rarg2 c_rarg3 c_rarg4 c_rarg5 |
100 // |-------------------------------------------------------|
101 // | rcx rdx r8 r9 rdi* rsi* | windows (* not a c_rarg)
102 // | rdi rsi rdx rcx r8 r9 | solaris/linux
103 // |-------------------------------------------------------|
104 // | j_rarg5 j_rarg0 j_rarg1 j_rarg2 j_rarg3 j_rarg4 |
105 // |-------------------------------------------------------|
106
107 REGISTER_DECLARATION(Register, j_rarg0, c_rarg1);
108 REGISTER_DECLARATION(Register, j_rarg1, c_rarg2);
109 REGISTER_DECLARATION(Register, j_rarg2, c_rarg3);
110 // Windows runs out of register args here
111 #ifdef _WIN64
112 REGISTER_DECLARATION(Register, j_rarg3, rdi);
113 REGISTER_DECLARATION(Register, j_rarg4, rsi);
114 #else
115 REGISTER_DECLARATION(Register, j_rarg3, c_rarg4);
116 REGISTER_DECLARATION(Register, j_rarg4, c_rarg5);
117 #endif /* _WIN64 */
118 REGISTER_DECLARATION(Register, j_rarg5, c_rarg0);
119
120 REGISTER_DECLARATION(XMMRegister, j_farg0, xmm0);
121 REGISTER_DECLARATION(XMMRegister, j_farg1, xmm1);
122 REGISTER_DECLARATION(XMMRegister, j_farg2, xmm2);
123 REGISTER_DECLARATION(XMMRegister, j_farg3, xmm3);
124 REGISTER_DECLARATION(XMMRegister, j_farg4, xmm4);
125 REGISTER_DECLARATION(XMMRegister, j_farg5, xmm5);
126 REGISTER_DECLARATION(XMMRegister, j_farg6, xmm6);
127 REGISTER_DECLARATION(XMMRegister, j_farg7, xmm7);
128
129 REGISTER_DECLARATION(Register, rscratch1, r10); // volatile
130 REGISTER_DECLARATION(Register, rscratch2, r11); // volatile
131
132 REGISTER_DECLARATION(Register, r12_heapbase, r12); // callee-saved
133 REGISTER_DECLARATION(Register, r15_thread, r15); // callee-saved
134
135 #else
136 // rscratch1 will apear in 32bit code that is dead but of course must compile
137 // Using noreg ensures if the dead code is incorrectly live and executed it
138 // will cause an assertion failure
139 #define rscratch1 noreg
140 #define rscratch2 noreg
141
142 #endif // _LP64
143
144 // JSR 292 fixed register usages:
145 REGISTER_DECLARATION(Register, rbp_mh_SP_save, rbp);
146
147 // Address is an abstraction used to represent a memory location
148 // using any of the amd64 addressing modes with one object.
149 //
150 // Note: A register location is represented via a Register, not
151 // via an address for efficiency & simplicity reasons.
152
153 class ArrayAddress;
154
155 class Address VALUE_OBJ_CLASS_SPEC {
156 public:
157 enum ScaleFactor {
158 no_scale = -1,
159 times_1 = 0,
160 times_2 = 1,
161 times_4 = 2,
162 times_8 = 3,
163 times_ptr = LP64_ONLY(times_8) NOT_LP64(times_4)
164 };
165 static ScaleFactor times(int size) {
166 assert(size >= 1 && size <= 8 && is_power_of_2(size), "bad scale size");
167 if (size == 8) return times_8;
168 if (size == 4) return times_4;
169 if (size == 2) return times_2;
170 return times_1;
171 }
172 static int scale_size(ScaleFactor scale) {
173 assert(scale != no_scale, "");
174 assert(((1 << (int)times_1) == 1 &&
175 (1 << (int)times_2) == 2 &&
176 (1 << (int)times_4) == 4 &&
177 (1 << (int)times_8) == 8), "");
178 return (1 << (int)scale);
179 }
180
181 private:
182 Register _base;
183 Register _index;
184 ScaleFactor _scale;
185 int _disp;
186 RelocationHolder _rspec;
187
188 // Easily misused constructors make them private
189 // %%% can we make these go away?
190 NOT_LP64(Address(address loc, RelocationHolder spec);)
191 Address(int disp, address loc, relocInfo::relocType rtype);
192 Address(int disp, address loc, RelocationHolder spec);
193
194 public:
195
196 int disp() { return _disp; }
197 // creation
198 Address()
199 : _base(noreg),
200 _index(noreg),
201 _scale(no_scale),
202 _disp(0) {
203 }
204
205 // No default displacement otherwise Register can be implicitly
206 // converted to 0(Register) which is quite a different animal.
207
208 Address(Register base, int disp)
209 : _base(base),
210 _index(noreg),
211 _scale(no_scale),
212 _disp(disp) {
213 }
214
215 Address(Register base, Register index, ScaleFactor scale, int disp = 0)
216 : _base (base),
217 _index(index),
218 _scale(scale),
219 _disp (disp) {
220 assert(!index->is_valid() == (scale == Address::no_scale),
221 "inconsistent address");
222 }
223
224 Address(Register base, RegisterOrConstant index, ScaleFactor scale = times_1, int disp = 0)
225 : _base (base),
226 _index(index.register_or_noreg()),
227 _scale(scale),
228 _disp (disp + (index.constant_or_zero() * scale_size(scale))) {
229 if (!index.is_register()) scale = Address::no_scale;
230 assert(!_index->is_valid() == (scale == Address::no_scale),
231 "inconsistent address");
232 }
233
234 Address plus_disp(int disp) const {
235 Address a = (*this);
236 a._disp += disp;
237 return a;
238 }
239 Address plus_disp(RegisterOrConstant disp, ScaleFactor scale = times_1) const {
240 Address a = (*this);
241 a._disp += disp.constant_or_zero() * scale_size(scale);
242 if (disp.is_register()) {
243 assert(!a.index()->is_valid(), "competing indexes");
244 a._index = disp.as_register();
245 a._scale = scale;
246 }
247 return a;
248 }
249 bool is_same_address(Address a) const {
250 // disregard _rspec
251 return _base == a._base && _disp == a._disp && _index == a._index && _scale == a._scale;
252 }
253
254 // The following two overloads are used in connection with the
255 // ByteSize type (see sizes.hpp). They simplify the use of
256 // ByteSize'd arguments in assembly code. Note that their equivalent
257 // for the optimized build are the member functions with int disp
258 // argument since ByteSize is mapped to an int type in that case.
259 //
260 // Note: DO NOT introduce similar overloaded functions for WordSize
261 // arguments as in the optimized mode, both ByteSize and WordSize
262 // are mapped to the same type and thus the compiler cannot make a
263 // distinction anymore (=> compiler errors).
264
265 #ifdef ASSERT
266 Address(Register base, ByteSize disp)
267 : _base(base),
268 _index(noreg),
269 _scale(no_scale),
270 _disp(in_bytes(disp)) {
271 }
272
273 Address(Register base, Register index, ScaleFactor scale, ByteSize disp)
274 : _base(base),
275 _index(index),
276 _scale(scale),
277 _disp(in_bytes(disp)) {
278 assert(!index->is_valid() == (scale == Address::no_scale),
279 "inconsistent address");
280 }
281
282 Address(Register base, RegisterOrConstant index, ScaleFactor scale, ByteSize disp)
283 : _base (base),
284 _index(index.register_or_noreg()),
285 _scale(scale),
286 _disp (in_bytes(disp) + (index.constant_or_zero() * scale_size(scale))) {
287 if (!index.is_register()) scale = Address::no_scale;
288 assert(!_index->is_valid() == (scale == Address::no_scale),
289 "inconsistent address");
290 }
291
292 #endif // ASSERT
293
294 // accessors
295 bool uses(Register reg) const { return _base == reg || _index == reg; }
296 Register base() const { return _base; }
297 Register index() const { return _index; }
298 ScaleFactor scale() const { return _scale; }
299 int disp() const { return _disp; }
300
301 // Convert the raw encoding form into the form expected by the constructor for
302 // Address. An index of 4 (rsp) corresponds to having no index, so convert
303 // that to noreg for the Address constructor.
304 static Address make_raw(int base, int index, int scale, int disp, relocInfo::relocType disp_reloc);
305
306 static Address make_array(ArrayAddress);
307
308 private:
309 bool base_needs_rex() const {
310 return _base != noreg && _base->encoding() >= 8;
311 }
312
313 bool index_needs_rex() const {
314 return _index != noreg &&_index->encoding() >= 8;
315 }
316
317 relocInfo::relocType reloc() const { return _rspec.type(); }
318
319 friend class Assembler;
320 friend class MacroAssembler;
321 friend class LIR_Assembler; // base/index/scale/disp
322 };
323
324 //
325 // AddressLiteral has been split out from Address because operands of this type
326 // need to be treated specially on 32bit vs. 64bit platforms. By splitting it out
327 // the few instructions that need to deal with address literals are unique and the
328 // MacroAssembler does not have to implement every instruction in the Assembler
329 // in order to search for address literals that may need special handling depending
330 // on the instruction and the platform. As small step on the way to merging i486/amd64
331 // directories.
332 //
333 class AddressLiteral VALUE_OBJ_CLASS_SPEC {
334 friend class ArrayAddress;
335 RelocationHolder _rspec;
336 // Typically we use AddressLiterals we want to use their rval
337 // However in some situations we want the lval (effect address) of the item.
338 // We provide a special factory for making those lvals.
339 bool _is_lval;
340
341 // If the target is far we'll need to load the ea of this to
342 // a register to reach it. Otherwise if near we can do rip
343 // relative addressing.
344
345 address _target;
346
347 protected:
348 // creation
349 AddressLiteral()
350 : _is_lval(false),
351 _target(NULL)
352 {}
353
354 public:
355
356
357 AddressLiteral(address target, relocInfo::relocType rtype);
358
359 AddressLiteral(address target, RelocationHolder const& rspec)
360 : _rspec(rspec),
361 _is_lval(false),
362 _target(target)
363 {}
364
365 AddressLiteral addr() {
366 AddressLiteral ret = *this;
367 ret._is_lval = true;
368 return ret;
369 }
370
371
372 private:
373
374 address target() { return _target; }
375 bool is_lval() { return _is_lval; }
376
377 relocInfo::relocType reloc() const { return _rspec.type(); }
378 const RelocationHolder& rspec() const { return _rspec; }
379
380 friend class Assembler;
381 friend class MacroAssembler;
382 friend class Address;
383 friend class LIR_Assembler;
384 };
385
386 // Convience classes
387 class RuntimeAddress: public AddressLiteral {
388
389 public:
390
391 RuntimeAddress(address target) : AddressLiteral(target, relocInfo::runtime_call_type) {}
392
393 };
394
395 class ExternalAddress: public AddressLiteral {
396 private:
397 static relocInfo::relocType reloc_for_target(address target) {
398 // Sometimes ExternalAddress is used for values which aren't
399 // exactly addresses, like the card table base.
400 // external_word_type can't be used for values in the first page
401 // so just skip the reloc in that case.
402 return external_word_Relocation::can_be_relocated(target) ? relocInfo::external_word_type : relocInfo::none;
403 }
404
405 public:
406
407 ExternalAddress(address target) : AddressLiteral(target, reloc_for_target(target)) {}
408
409 };
410
411 class InternalAddress: public AddressLiteral {
412
413 public:
414
415 InternalAddress(address target) : AddressLiteral(target, relocInfo::internal_word_type) {}
416
417 };
418
419 // x86 can do array addressing as a single operation since disp can be an absolute
420 // address amd64 can't. We create a class that expresses the concept but does extra
421 // magic on amd64 to get the final result
422
423 class ArrayAddress VALUE_OBJ_CLASS_SPEC {
424 private:
425
426 AddressLiteral _base;
427 Address _index;
428
429 public:
430
431 ArrayAddress() {};
432 ArrayAddress(AddressLiteral base, Address index): _base(base), _index(index) {};
433 AddressLiteral base() { return _base; }
434 Address index() { return _index; }
435
436 };
437
438 const int FPUStateSizeInWords = NOT_LP64(27) LP64_ONLY( 512 / wordSize);
439
440 // The Intel x86/Amd64 Assembler: Pure assembler doing NO optimizations on the instruction
441 // level (e.g. mov rax, 0 is not translated into xor rax, rax!); i.e., what you write
442 // is what you get. The Assembler is generating code into a CodeBuffer.
443
444 class Assembler : public AbstractAssembler {
445 friend class AbstractAssembler; // for the non-virtual hack
446 friend class LIR_Assembler; // as_Address()
447 friend class StubGenerator;
448
449 public:
450 enum Condition { // The x86 condition codes used for conditional jumps/moves.
451 zero = 0x4,
452 notZero = 0x5,
453 equal = 0x4,
454 notEqual = 0x5,
455 less = 0xc,
456 lessEqual = 0xe,
457 greater = 0xf,
458 greaterEqual = 0xd,
459 below = 0x2,
460 belowEqual = 0x6,
461 above = 0x7,
462 aboveEqual = 0x3,
463 overflow = 0x0,
464 noOverflow = 0x1,
465 carrySet = 0x2,
466 carryClear = 0x3,
467 negative = 0x8,
468 positive = 0x9,
469 parity = 0xa,
470 noParity = 0xb
471 };
472
473 enum Prefix {
474 // segment overrides
475 CS_segment = 0x2e,
476 SS_segment = 0x36,
477 DS_segment = 0x3e,
478 ES_segment = 0x26,
479 FS_segment = 0x64,
480 GS_segment = 0x65,
481
482 REX = 0x40,
483
484 REX_B = 0x41,
485 REX_X = 0x42,
486 REX_XB = 0x43,
487 REX_R = 0x44,
488 REX_RB = 0x45,
489 REX_RX = 0x46,
490 REX_RXB = 0x47,
491
492 REX_W = 0x48,
493
494 REX_WB = 0x49,
495 REX_WX = 0x4A,
496 REX_WXB = 0x4B,
497 REX_WR = 0x4C,
498 REX_WRB = 0x4D,
499 REX_WRX = 0x4E,
500 REX_WRXB = 0x4F,
501
502 VEX_3bytes = 0xC4,
503 VEX_2bytes = 0xC5
504 };
505
506 enum VexPrefix {
507 VEX_B = 0x20,
508 VEX_X = 0x40,
509 VEX_R = 0x80,
510 VEX_W = 0x80
511 };
512
513 enum VexSimdPrefix {
514 VEX_SIMD_NONE = 0x0,
515 VEX_SIMD_66 = 0x1,
516 VEX_SIMD_F3 = 0x2,
517 VEX_SIMD_F2 = 0x3
518 };
519
520 enum VexOpcode {
521 VEX_OPCODE_NONE = 0x0,
522 VEX_OPCODE_0F = 0x1,
523 VEX_OPCODE_0F_38 = 0x2,
524 VEX_OPCODE_0F_3A = 0x3
525 };
526
527 enum WhichOperand {
528 // input to locate_operand, and format code for relocations
529 imm_operand = 0, // embedded 32-bit|64-bit immediate operand
530 disp32_operand = 1, // embedded 32-bit displacement or address
531 call32_operand = 2, // embedded 32-bit self-relative displacement
532 #ifndef _LP64
533 _WhichOperand_limit = 3
534 #else
535 narrow_oop_operand = 3, // embedded 32-bit immediate narrow oop
536 _WhichOperand_limit = 4
537 #endif
538 };
539
540
541
542 // NOTE: The general philopsophy of the declarations here is that 64bit versions
543 // of instructions are freely declared without the need for wrapping them an ifdef.
544 // (Some dangerous instructions are ifdef's out of inappropriate jvm's.)
545 // In the .cpp file the implementations are wrapped so that they are dropped out
546 // of the resulting jvm. This is done mostly to keep the footprint of MINIMAL
547 // to the size it was prior to merging up the 32bit and 64bit assemblers.
548 //
549 // This does mean you'll get a linker/runtime error if you use a 64bit only instruction
550 // in a 32bit vm. This is somewhat unfortunate but keeps the ifdef noise down.
551
552 private:
553
554
555 // 64bit prefixes
556 int prefix_and_encode(int reg_enc, bool byteinst = false);
557 int prefixq_and_encode(int reg_enc);
558
559 int prefix_and_encode(int dst_enc, int src_enc, bool byteinst = false);
560 int prefixq_and_encode(int dst_enc, int src_enc);
561
562 void prefix(Register reg);
563 void prefix(Address adr);
564 void prefixq(Address adr);
565
566 void prefix(Address adr, Register reg, bool byteinst = false);
567 void prefix(Address adr, XMMRegister reg);
568 void prefixq(Address adr, Register reg);
569 void prefixq(Address adr, XMMRegister reg);
570
571 void prefetch_prefix(Address src);
572
573 void rex_prefix(Address adr, XMMRegister xreg,
574 VexSimdPrefix pre, VexOpcode opc, bool rex_w);
575 int rex_prefix_and_encode(int dst_enc, int src_enc,
576 VexSimdPrefix pre, VexOpcode opc, bool rex_w);
577
578 void vex_prefix(bool vex_r, bool vex_b, bool vex_x, bool vex_w,
579 int nds_enc, VexSimdPrefix pre, VexOpcode opc,
580 bool vector256);
581
582 void vex_prefix(Address adr, int nds_enc, int xreg_enc,
583 VexSimdPrefix pre, VexOpcode opc,
584 bool vex_w, bool vector256);
585
586 void vex_prefix(XMMRegister dst, XMMRegister nds, Address src,
587 VexSimdPrefix pre, bool vector256 = false) {
588 int dst_enc = dst->encoding();
589 int nds_enc = nds->is_valid() ? nds->encoding() : 0;
590 vex_prefix(src, nds_enc, dst_enc, pre, VEX_OPCODE_0F, false, vector256);
591 }
592
593 int vex_prefix_and_encode(int dst_enc, int nds_enc, int src_enc,
594 VexSimdPrefix pre, VexOpcode opc,
595 bool vex_w, bool vector256);
596
597 int vex_prefix_and_encode(XMMRegister dst, XMMRegister nds, XMMRegister src,
598 VexSimdPrefix pre, bool vector256 = false,
599 VexOpcode opc = VEX_OPCODE_0F) {
600 int src_enc = src->encoding();
601 int dst_enc = dst->encoding();
602 int nds_enc = nds->is_valid() ? nds->encoding() : 0;
603 return vex_prefix_and_encode(dst_enc, nds_enc, src_enc, pre, opc, false, vector256);
604 }
605
606 void simd_prefix(XMMRegister xreg, XMMRegister nds, Address adr,
607 VexSimdPrefix pre, VexOpcode opc = VEX_OPCODE_0F,
608 bool rex_w = false, bool vector256 = false);
609
610 void simd_prefix(XMMRegister dst, Address src,
611 VexSimdPrefix pre, VexOpcode opc = VEX_OPCODE_0F) {
612 simd_prefix(dst, xnoreg, src, pre, opc);
613 }
614
615 void simd_prefix(Address dst, XMMRegister src, VexSimdPrefix pre) {
616 simd_prefix(src, dst, pre);
617 }
618 void simd_prefix_q(XMMRegister dst, XMMRegister nds, Address src,
619 VexSimdPrefix pre) {
620 bool rex_w = true;
621 simd_prefix(dst, nds, src, pre, VEX_OPCODE_0F, rex_w);
622 }
623
624 int simd_prefix_and_encode(XMMRegister dst, XMMRegister nds, XMMRegister src,
625 VexSimdPrefix pre, VexOpcode opc = VEX_OPCODE_0F,
626 bool rex_w = false, bool vector256 = false);
627
628 // Move/convert 32-bit integer value.
629 int simd_prefix_and_encode(XMMRegister dst, XMMRegister nds, Register src,
630 VexSimdPrefix pre) {
631 // It is OK to cast from Register to XMMRegister to pass argument here
632 // since only encoding is used in simd_prefix_and_encode() and number of
633 // Gen and Xmm registers are the same.
634 return simd_prefix_and_encode(dst, nds, as_XMMRegister(src->encoding()), pre);
635 }
636 int simd_prefix_and_encode(XMMRegister dst, Register src, VexSimdPrefix pre) {
637 return simd_prefix_and_encode(dst, xnoreg, src, pre);
638 }
639 int simd_prefix_and_encode(Register dst, XMMRegister src,
640 VexSimdPrefix pre, VexOpcode opc = VEX_OPCODE_0F) {
641 return simd_prefix_and_encode(as_XMMRegister(dst->encoding()), xnoreg, src, pre, opc);
642 }
643
644 // Move/convert 64-bit integer value.
645 int simd_prefix_and_encode_q(XMMRegister dst, XMMRegister nds, Register src,
646 VexSimdPrefix pre) {
647 bool rex_w = true;
648 return simd_prefix_and_encode(dst, nds, as_XMMRegister(src->encoding()), pre, VEX_OPCODE_0F, rex_w);
649 }
650 int simd_prefix_and_encode_q(XMMRegister dst, Register src, VexSimdPrefix pre) {
651 return simd_prefix_and_encode_q(dst, xnoreg, src, pre);
652 }
653 int simd_prefix_and_encode_q(Register dst, XMMRegister src,
654 VexSimdPrefix pre, VexOpcode opc = VEX_OPCODE_0F) {
655 bool rex_w = true;
656 return simd_prefix_and_encode(as_XMMRegister(dst->encoding()), xnoreg, src, pre, opc, rex_w);
657 }
658
659 // Helper functions for groups of instructions
660 void emit_arith_b(int op1, int op2, Register dst, int imm8);
661
662 void emit_arith(int op1, int op2, Register dst, int32_t imm32);
663 // Force generation of a 4 byte immediate value even if it fits into 8bit
664 void emit_arith_imm32(int op1, int op2, Register dst, int32_t imm32);
665 void emit_arith(int op1, int op2, Register dst, Register src);
666
667 void emit_simd_arith(int opcode, XMMRegister dst, Address src, VexSimdPrefix pre);
668 void emit_simd_arith(int opcode, XMMRegister dst, XMMRegister src, VexSimdPrefix pre);
669 void emit_simd_arith_nonds(int opcode, XMMRegister dst, Address src, VexSimdPrefix pre);
670 void emit_simd_arith_nonds(int opcode, XMMRegister dst, XMMRegister src, VexSimdPrefix pre);
671 void emit_vex_arith(int opcode, XMMRegister dst, XMMRegister nds,
672 Address src, VexSimdPrefix pre, bool vector256);
673 void emit_vex_arith(int opcode, XMMRegister dst, XMMRegister nds,
674 XMMRegister src, VexSimdPrefix pre, bool vector256);
675
676 void emit_operand(Register reg,
677 Register base, Register index, Address::ScaleFactor scale,
678 int disp,
679 RelocationHolder const& rspec,
680 int rip_relative_correction = 0);
681
682 void emit_operand(Register reg, Address adr, int rip_relative_correction = 0);
683
684 // operands that only take the original 32bit registers
685 void emit_operand32(Register reg, Address adr);
686
687 void emit_operand(XMMRegister reg,
688 Register base, Register index, Address::ScaleFactor scale,
689 int disp,
690 RelocationHolder const& rspec);
691
692 void emit_operand(XMMRegister reg, Address adr);
693
694 void emit_operand(MMXRegister reg, Address adr);
695
696 // workaround gcc (3.2.1-7) bug
697 void emit_operand(Address adr, MMXRegister reg);
698
699
700 // Immediate-to-memory forms
701 void emit_arith_operand(int op1, Register rm, Address adr, int32_t imm32);
702
703 void emit_farith(int b1, int b2, int i);
704
705
706 protected:
707 #ifdef ASSERT
708 void check_relocation(RelocationHolder const& rspec, int format);
709 #endif
710
711 void emit_data(jint data, relocInfo::relocType rtype, int format);
712 void emit_data(jint data, RelocationHolder const& rspec, int format);
713 void emit_data64(jlong data, relocInfo::relocType rtype, int format = 0);
714 void emit_data64(jlong data, RelocationHolder const& rspec, int format = 0);
715
716 bool reachable(AddressLiteral adr) NOT_LP64({ return true;});
717
718 // These are all easily abused and hence protected
719
720 // 32BIT ONLY SECTION
721 #ifndef _LP64
722 // Make these disappear in 64bit mode since they would never be correct
723 void cmp_literal32(Register src1, int32_t imm32, RelocationHolder const& rspec); // 32BIT ONLY
724 void cmp_literal32(Address src1, int32_t imm32, RelocationHolder const& rspec); // 32BIT ONLY
725
726 void mov_literal32(Register dst, int32_t imm32, RelocationHolder const& rspec); // 32BIT ONLY
727 void mov_literal32(Address dst, int32_t imm32, RelocationHolder const& rspec); // 32BIT ONLY
728
729 void push_literal32(int32_t imm32, RelocationHolder const& rspec); // 32BIT ONLY
730 #else
731 // 64BIT ONLY SECTION
732 void mov_literal64(Register dst, intptr_t imm64, RelocationHolder const& rspec); // 64BIT ONLY
733
734 void cmp_narrow_oop(Register src1, int32_t imm32, RelocationHolder const& rspec);
735 void cmp_narrow_oop(Address src1, int32_t imm32, RelocationHolder const& rspec);
736
737 void mov_narrow_oop(Register dst, int32_t imm32, RelocationHolder const& rspec);
738 void mov_narrow_oop(Address dst, int32_t imm32, RelocationHolder const& rspec);
739 #endif // _LP64
740
741 // These are unique in that we are ensured by the caller that the 32bit
742 // relative in these instructions will always be able to reach the potentially
743 // 64bit address described by entry. Since they can take a 64bit address they
744 // don't have the 32 suffix like the other instructions in this class.
745
746 void call_literal(address entry, RelocationHolder const& rspec);
747 void jmp_literal(address entry, RelocationHolder const& rspec);
748
749 // Avoid using directly section
750 // Instructions in this section are actually usable by anyone without danger
751 // of failure but have performance issues that are addressed my enhanced
752 // instructions which will do the proper thing base on the particular cpu.
753 // We protect them because we don't trust you...
754
755 // Don't use next inc() and dec() methods directly. INC & DEC instructions
756 // could cause a partial flag stall since they don't set CF flag.
757 // Use MacroAssembler::decrement() & MacroAssembler::increment() methods
758 // which call inc() & dec() or add() & sub() in accordance with
759 // the product flag UseIncDec value.
760
761 void decl(Register dst);
762 void decl(Address dst);
763 void decq(Register dst);
764 void decq(Address dst);
765
766 void incl(Register dst);
767 void incl(Address dst);
768 void incq(Register dst);
769 void incq(Address dst);
770
771 // New cpus require use of movsd and movss to avoid partial register stall
772 // when loading from memory. But for old Opteron use movlpd instead of movsd.
773 // The selection is done in MacroAssembler::movdbl() and movflt().
774
775 // Move Scalar Single-Precision Floating-Point Values
776 void movss(XMMRegister dst, Address src);
777 void movss(XMMRegister dst, XMMRegister src);
778 void movss(Address dst, XMMRegister src);
779
780 // Move Scalar Double-Precision Floating-Point Values
781 void movsd(XMMRegister dst, Address src);
782 void movsd(XMMRegister dst, XMMRegister src);
783 void movsd(Address dst, XMMRegister src);
784 void movlpd(XMMRegister dst, Address src);
785
786 // New cpus require use of movaps and movapd to avoid partial register stall
787 // when moving between registers.
788 void movaps(XMMRegister dst, XMMRegister src);
789 void movapd(XMMRegister dst, XMMRegister src);
790
791 // End avoid using directly
792
793
794 // Instruction prefixes
795 void prefix(Prefix p);
796
797 public:
798
799 // Creation
800 Assembler(CodeBuffer* code) : AbstractAssembler(code) {}
801
802 // Decoding
803 static address locate_operand(address inst, WhichOperand which);
804 static address locate_next_instruction(address inst);
805
806 // Utilities
807 static bool is_polling_page_far() NOT_LP64({ return false;});
808
809 // Generic instructions
810 // Does 32bit or 64bit as needed for the platform. In some sense these
811 // belong in macro assembler but there is no need for both varieties to exist
812
813 void lea(Register dst, Address src);
814
815 void mov(Register dst, Register src);
816
817 void pusha();
818 void popa();
819
820 void pushf();
821 void popf();
822
823 void push(int32_t imm32);
824
825 void push(Register src);
826
827 void pop(Register dst);
828
829 // These are dummies to prevent surprise implicit conversions to Register
830 void push(void* v);
831 void pop(void* v);
832
833 // These do register sized moves/scans
834 void rep_mov();
835 void rep_stos();
836 void rep_stosb();
837 void repne_scan();
838 #ifdef _LP64
839 void repne_scanl();
840 #endif
841
842 // Vanilla instructions in lexical order
843
844 void adcl(Address dst, int32_t imm32);
845 void adcl(Address dst, Register src);
846 void adcl(Register dst, int32_t imm32);
847 void adcl(Register dst, Address src);
848 void adcl(Register dst, Register src);
849
850 void adcq(Register dst, int32_t imm32);
851 void adcq(Register dst, Address src);
852 void adcq(Register dst, Register src);
853
854 void addl(Address dst, int32_t imm32);
855 void addl(Address dst, Register src);
856 void addl(Register dst, int32_t imm32);
857 void addl(Register dst, Address src);
858 void addl(Register dst, Register src);
859
860 void addq(Address dst, int32_t imm32);
861 void addq(Address dst, Register src);
862 void addq(Register dst, int32_t imm32);
863 void addq(Register dst, Address src);
864 void addq(Register dst, Register src);
865
866 void addr_nop_4();
867 void addr_nop_5();
868 void addr_nop_7();
869 void addr_nop_8();
870
871 // Add Scalar Double-Precision Floating-Point Values
872 void addsd(XMMRegister dst, Address src);
873 void addsd(XMMRegister dst, XMMRegister src);
874
875 // Add Scalar Single-Precision Floating-Point Values
876 void addss(XMMRegister dst, Address src);
877 void addss(XMMRegister dst, XMMRegister src);
878
879 // AES instructions
880 void aesdec(XMMRegister dst, Address src);
881 void aesdec(XMMRegister dst, XMMRegister src);
882 void aesdeclast(XMMRegister dst, Address src);
883 void aesdeclast(XMMRegister dst, XMMRegister src);
884 void aesenc(XMMRegister dst, Address src);
885 void aesenc(XMMRegister dst, XMMRegister src);
886 void aesenclast(XMMRegister dst, Address src);
887 void aesenclast(XMMRegister dst, XMMRegister src);
888
889
890 void andl(Address dst, int32_t imm32);
891 void andl(Register dst, int32_t imm32);
892 void andl(Register dst, Address src);
893 void andl(Register dst, Register src);
894
895 void andq(Address dst, int32_t imm32);
896 void andq(Register dst, int32_t imm32);
897 void andq(Register dst, Address src);
898 void andq(Register dst, Register src);
899
900 void bsfl(Register dst, Register src);
901 void bsrl(Register dst, Register src);
902
903 #ifdef _LP64
904 void bsfq(Register dst, Register src);
905 void bsrq(Register dst, Register src);
906 #endif
907
908 void bswapl(Register reg);
909
910 void bswapq(Register reg);
911
912 void call(Label& L, relocInfo::relocType rtype);
913 void call(Register reg); // push pc; pc <- reg
914 void call(Address adr); // push pc; pc <- adr
915
916 void cdql();
917
918 void cdqq();
919
920 void cld();
921
922 void clflush(Address adr);
923
924 void cmovl(Condition cc, Register dst, Register src);
925 void cmovl(Condition cc, Register dst, Address src);
926
927 void cmovq(Condition cc, Register dst, Register src);
928 void cmovq(Condition cc, Register dst, Address src);
929
930
931 void cmpb(Address dst, int imm8);
932
933 void cmpl(Address dst, int32_t imm32);
934
935 void cmpl(Register dst, int32_t imm32);
936 void cmpl(Register dst, Register src);
937 void cmpl(Register dst, Address src);
938
939 void cmpq(Address dst, int32_t imm32);
940 void cmpq(Address dst, Register src);
941
942 void cmpq(Register dst, int32_t imm32);
943 void cmpq(Register dst, Register src);
944 void cmpq(Register dst, Address src);
945
946 // these are dummies used to catch attempting to convert NULL to Register
947 void cmpl(Register dst, void* junk); // dummy
948 void cmpq(Register dst, void* junk); // dummy
949
950 void cmpw(Address dst, int imm16);
951
952 void cmpxchg8 (Address adr);
953
954 void cmpxchgl(Register reg, Address adr);
955
956 void cmpxchgq(Register reg, Address adr);
957
958 // Ordered Compare Scalar Double-Precision Floating-Point Values and set EFLAGS
959 void comisd(XMMRegister dst, Address src);
960 void comisd(XMMRegister dst, XMMRegister src);
961
962 // Ordered Compare Scalar Single-Precision Floating-Point Values and set EFLAGS
963 void comiss(XMMRegister dst, Address src);
964 void comiss(XMMRegister dst, XMMRegister src);
965
966 // Identify processor type and features
967 void cpuid();
968
969 // Convert Scalar Double-Precision Floating-Point Value to Scalar Single-Precision Floating-Point Value
970 void cvtsd2ss(XMMRegister dst, XMMRegister src);
971 void cvtsd2ss(XMMRegister dst, Address src);
972
973 // Convert Doubleword Integer to Scalar Double-Precision Floating-Point Value
974 void cvtsi2sdl(XMMRegister dst, Register src);
975 void cvtsi2sdl(XMMRegister dst, Address src);
976 void cvtsi2sdq(XMMRegister dst, Register src);
977 void cvtsi2sdq(XMMRegister dst, Address src);
978
979 // Convert Doubleword Integer to Scalar Single-Precision Floating-Point Value
980 void cvtsi2ssl(XMMRegister dst, Register src);
981 void cvtsi2ssl(XMMRegister dst, Address src);
982 void cvtsi2ssq(XMMRegister dst, Register src);
983 void cvtsi2ssq(XMMRegister dst, Address src);
984
985 // Convert Packed Signed Doubleword Integers to Packed Double-Precision Floating-Point Value
986 void cvtdq2pd(XMMRegister dst, XMMRegister src);
987
988 // Convert Packed Signed Doubleword Integers to Packed Single-Precision Floating-Point Value
989 void cvtdq2ps(XMMRegister dst, XMMRegister src);
990
991 // Convert Scalar Single-Precision Floating-Point Value to Scalar Double-Precision Floating-Point Value
992 void cvtss2sd(XMMRegister dst, XMMRegister src);
993 void cvtss2sd(XMMRegister dst, Address src);
994
995 // Convert with Truncation Scalar Double-Precision Floating-Point Value to Doubleword Integer
996 void cvttsd2sil(Register dst, Address src);
997 void cvttsd2sil(Register dst, XMMRegister src);
998 void cvttsd2siq(Register dst, XMMRegister src);
999
1000 // Convert with Truncation Scalar Single-Precision Floating-Point Value to Doubleword Integer
1001 void cvttss2sil(Register dst, XMMRegister src);
1002 void cvttss2siq(Register dst, XMMRegister src);
1003
1004 // Divide Scalar Double-Precision Floating-Point Values
1005 void divsd(XMMRegister dst, Address src);
1006 void divsd(XMMRegister dst, XMMRegister src);
1007
1008 // Divide Scalar Single-Precision Floating-Point Values
1009 void divss(XMMRegister dst, Address src);
1010 void divss(XMMRegister dst, XMMRegister src);
1011
1012 void emms();
1013
1014 void fabs();
1015
1016 void fadd(int i);
1017
1018 void fadd_d(Address src);
1019 void fadd_s(Address src);
1020
1021 // "Alternate" versions of x87 instructions place result down in FPU
1022 // stack instead of on TOS
1023
1024 void fadda(int i); // "alternate" fadd
1025 void faddp(int i = 1);
1026
1027 void fchs();
1028
1029 void fcom(int i);
1030
1031 void fcomp(int i = 1);
1032 void fcomp_d(Address src);
1033 void fcomp_s(Address src);
1034
1035 void fcompp();
1036
1037 void fcos();
1038
1039 void fdecstp();
1040
1041 void fdiv(int i);
1042 void fdiv_d(Address src);
1043 void fdivr_s(Address src);
1044 void fdiva(int i); // "alternate" fdiv
1045 void fdivp(int i = 1);
1046
1047 void fdivr(int i);
1048 void fdivr_d(Address src);
1049 void fdiv_s(Address src);
1050
1051 void fdivra(int i); // "alternate" reversed fdiv
1052
1053 void fdivrp(int i = 1);
1054
1055 void ffree(int i = 0);
1056
1057 void fild_d(Address adr);
1058 void fild_s(Address adr);
1059
1060 void fincstp();
1061
1062 void finit();
1063
1064 void fist_s (Address adr);
1065 void fistp_d(Address adr);
1066 void fistp_s(Address adr);
1067
1068 void fld1();
1069
1070 void fld_d(Address adr);
1071 void fld_s(Address adr);
1072 void fld_s(int index);
1073 void fld_x(Address adr); // extended-precision (80-bit) format
1074
1075 void fldcw(Address src);
1076
1077 void fldenv(Address src);
1078
1079 void fldlg2();
1080
1081 void fldln2();
1082
1083 void fldz();
1084
1085 void flog();
1086 void flog10();
1087
1088 void fmul(int i);
1089
1090 void fmul_d(Address src);
1091 void fmul_s(Address src);
1092
1093 void fmula(int i); // "alternate" fmul
1094
1095 void fmulp(int i = 1);
1096
1097 void fnsave(Address dst);
1098
1099 void fnstcw(Address src);
1100
1101 void fnstsw_ax();
1102
1103 void fprem();
1104 void fprem1();
1105
1106 void frstor(Address src);
1107
1108 void fsin();
1109
1110 void fsqrt();
1111
1112 void fst_d(Address adr);
1113 void fst_s(Address adr);
1114
1115 void fstp_d(Address adr);
1116 void fstp_d(int index);
1117 void fstp_s(Address adr);
1118 void fstp_x(Address adr); // extended-precision (80-bit) format
1119
1120 void fsub(int i);
1121 void fsub_d(Address src);
1122 void fsub_s(Address src);
1123
1124 void fsuba(int i); // "alternate" fsub
1125
1126 void fsubp(int i = 1);
1127
1128 void fsubr(int i);
1129 void fsubr_d(Address src);
1130 void fsubr_s(Address src);
1131
1132 void fsubra(int i); // "alternate" reversed fsub
1133
1134 void fsubrp(int i = 1);
1135
1136 void ftan();
1137
1138 void ftst();
1139
1140 void fucomi(int i = 1);
1141 void fucomip(int i = 1);
1142
1143 void fwait();
1144
1145 void fxch(int i = 1);
1146
1147 void fxrstor(Address src);
1148
1149 void fxsave(Address dst);
1150
1151 void fyl2x();
1152 void frndint();
1153 void f2xm1();
1154 void fldl2e();
1155
1156 void hlt();
1157
1158 void idivl(Register src);
1159 void divl(Register src); // Unsigned division
1160
1161 void idivq(Register src);
1162
1163 void imull(Register dst, Register src);
1164 void imull(Register dst, Register src, int value);
1165
1166 void imulq(Register dst, Register src);
1167 void imulq(Register dst, Register src, int value);
1168
1169
1170 // jcc is the generic conditional branch generator to run-
1171 // time routines, jcc is used for branches to labels. jcc
1172 // takes a branch opcode (cc) and a label (L) and generates
1173 // either a backward branch or a forward branch and links it
1174 // to the label fixup chain. Usage:
1175 //
1176 // Label L; // unbound label
1177 // jcc(cc, L); // forward branch to unbound label
1178 // bind(L); // bind label to the current pc
1179 // jcc(cc, L); // backward branch to bound label
1180 // bind(L); // illegal: a label may be bound only once
1181 //
1182 // Note: The same Label can be used for forward and backward branches
1183 // but it may be bound only once.
1184
1185 void jcc(Condition cc, Label& L, bool maybe_short = true);
1186
1187 // Conditional jump to a 8-bit offset to L.
1188 // WARNING: be very careful using this for forward jumps. If the label is
1189 // not bound within an 8-bit offset of this instruction, a run-time error
1190 // will occur.
1191 void jccb(Condition cc, Label& L);
1192
1193 void jmp(Address entry); // pc <- entry
1194
1195 // Label operations & relative jumps (PPUM Appendix D)
1196 void jmp(Label& L, bool maybe_short = true); // unconditional jump to L
1197
1198 void jmp(Register entry); // pc <- entry
1199
1200 // Unconditional 8-bit offset jump to L.
1201 // WARNING: be very careful using this for forward jumps. If the label is
1202 // not bound within an 8-bit offset of this instruction, a run-time error
1203 // will occur.
1204 void jmpb(Label& L);
1205
1206 void ldmxcsr( Address src );
1207
1208 void leal(Register dst, Address src);
1209
1210 void leaq(Register dst, Address src);
1211
1212 void lfence();
1213
1214 void lock();
1215
1216 void lzcntl(Register dst, Register src);
1217
1218 #ifdef _LP64
1219 void lzcntq(Register dst, Register src);
1220 #endif
1221
1222 enum Membar_mask_bits {
1223 StoreStore = 1 << 3,
1224 LoadStore = 1 << 2,
1225 StoreLoad = 1 << 1,
1226 LoadLoad = 1 << 0
1227 };
1228
1229 // Serializes memory and blows flags
1230 void membar(Membar_mask_bits order_constraint) {
1231 if (os::is_MP()) {
1232 // We only have to handle StoreLoad
1233 if (order_constraint & StoreLoad) {
1234 // All usable chips support "locked" instructions which suffice
1235 // as barriers, and are much faster than the alternative of
1236 // using cpuid instruction. We use here a locked add [esp],0.
1237 // This is conveniently otherwise a no-op except for blowing
1238 // flags.
1239 // Any change to this code may need to revisit other places in
1240 // the code where this idiom is used, in particular the
1241 // orderAccess code.
1242 lock();
1243 addl(Address(rsp, 0), 0);// Assert the lock# signal here
1244 }
1245 }
1246 }
1247
1248 void mfence();
1249
1250 // Moves
1251
1252 void mov64(Register dst, int64_t imm64);
1253
1254 void movb(Address dst, Register src);
1255 void movb(Address dst, int imm8);
1256 void movb(Register dst, Address src);
1257
1258 void movdl(XMMRegister dst, Register src);
1259 void movdl(Register dst, XMMRegister src);
1260 void movdl(XMMRegister dst, Address src);
1261 void movdl(Address dst, XMMRegister src);
1262
1263 // Move Double Quadword
1264 void movdq(XMMRegister dst, Register src);
1265 void movdq(Register dst, XMMRegister src);
1266
1267 // Move Aligned Double Quadword
1268 void movdqa(XMMRegister dst, XMMRegister src);
1269 void movdqa(XMMRegister dst, Address src);
1270
1271 // Move Unaligned Double Quadword
1272 void movdqu(Address dst, XMMRegister src);
1273 void movdqu(XMMRegister dst, Address src);
1274 void movdqu(XMMRegister dst, XMMRegister src);
1275
1276 // Move Unaligned 256bit Vector
1277 void vmovdqu(Address dst, XMMRegister src);
1278 void vmovdqu(XMMRegister dst, Address src);
1279 void vmovdqu(XMMRegister dst, XMMRegister src);
1280
1281 // Move lower 64bit to high 64bit in 128bit register
1282 void movlhps(XMMRegister dst, XMMRegister src);
1283
1284 void movl(Register dst, int32_t imm32);
1285 void movl(Address dst, int32_t imm32);
1286 void movl(Register dst, Register src);
1287 void movl(Register dst, Address src);
1288 void movl(Address dst, Register src);
1289
1290 // These dummies prevent using movl from converting a zero (like NULL) into Register
1291 // by giving the compiler two choices it can't resolve
1292
1293 void movl(Address dst, void* junk);
1294 void movl(Register dst, void* junk);
1295
1296 #ifdef _LP64
1297 void movq(Register dst, Register src);
1298 void movq(Register dst, Address src);
1299 void movq(Address dst, Register src);
1300 #endif
1301
1302 void movq(Address dst, MMXRegister src );
1303 void movq(MMXRegister dst, Address src );
1304
1305 #ifdef _LP64
1306 // These dummies prevent using movq from converting a zero (like NULL) into Register
1307 // by giving the compiler two choices it can't resolve
1308
1309 void movq(Address dst, void* dummy);
1310 void movq(Register dst, void* dummy);
1311 #endif
1312
1313 // Move Quadword
1314 void movq(Address dst, XMMRegister src);
1315 void movq(XMMRegister dst, Address src);
1316
1317 void movsbl(Register dst, Address src);
1318 void movsbl(Register dst, Register src);
1319
1320 #ifdef _LP64
1321 void movsbq(Register dst, Address src);
1322 void movsbq(Register dst, Register src);
1323
1324 // Move signed 32bit immediate to 64bit extending sign
1325 void movslq(Address dst, int32_t imm64);
1326 void movslq(Register dst, int32_t imm64);
1327
1328 void movslq(Register dst, Address src);
1329 void movslq(Register dst, Register src);
1330 void movslq(Register dst, void* src); // Dummy declaration to cause NULL to be ambiguous
1331 #endif
1332
1333 void movswl(Register dst, Address src);
1334 void movswl(Register dst, Register src);
1335
1336 #ifdef _LP64
1337 void movswq(Register dst, Address src);
1338 void movswq(Register dst, Register src);
1339 #endif
1340
1341 void movw(Address dst, int imm16);
1342 void movw(Register dst, Address src);
1343 void movw(Address dst, Register src);
1344
1345 void movzbl(Register dst, Address src);
1346 void movzbl(Register dst, Register src);
1347
1348 #ifdef _LP64
1349 void movzbq(Register dst, Address src);
1350 void movzbq(Register dst, Register src);
1351 #endif
1352
1353 void movzwl(Register dst, Address src);
1354 void movzwl(Register dst, Register src);
1355
1356 #ifdef _LP64
1357 void movzwq(Register dst, Address src);
1358 void movzwq(Register dst, Register src);
1359 #endif
1360
1361 void mull(Address src);
1362 void mull(Register src);
1363
1364 // Multiply Scalar Double-Precision Floating-Point Values
1365 void mulsd(XMMRegister dst, Address src);
1366 void mulsd(XMMRegister dst, XMMRegister src);
1367
1368 // Multiply Scalar Single-Precision Floating-Point Values
1369 void mulss(XMMRegister dst, Address src);
1370 void mulss(XMMRegister dst, XMMRegister src);
1371
1372 void negl(Register dst);
1373
1374 #ifdef _LP64
1375 void negq(Register dst);
1376 #endif
1377
1378 void nop(int i = 1);
1379
1380 void notl(Register dst);
1381
1382 #ifdef _LP64
1383 void notq(Register dst);
1384 #endif
1385
1386 void orl(Address dst, int32_t imm32);
1387 void orl(Register dst, int32_t imm32);
1388 void orl(Register dst, Address src);
1389 void orl(Register dst, Register src);
1390
1391 void orq(Address dst, int32_t imm32);
1392 void orq(Register dst, int32_t imm32);
1393 void orq(Register dst, Address src);
1394 void orq(Register dst, Register src);
1395
1396 // Pack with unsigned saturation
1397 void packuswb(XMMRegister dst, XMMRegister src);
1398 void packuswb(XMMRegister dst, Address src);
1399 void vpackuswb(XMMRegister dst, XMMRegister nds, XMMRegister src, bool vector256);
1400
1401 // Pemutation of 64bit words
1402 void vpermq(XMMRegister dst, XMMRegister src, int imm8, bool vector256);
1403
1404 // SSE4.2 string instructions
1405 void pcmpestri(XMMRegister xmm1, XMMRegister xmm2, int imm8);
1406 void pcmpestri(XMMRegister xmm1, Address src, int imm8);
1407
1408 // SSE 4.1 extract
1409 void pextrd(Register dst, XMMRegister src, int imm8);
1410 void pextrq(Register dst, XMMRegister src, int imm8);
1411
1412 // SSE 4.1 insert
1413 void pinsrd(XMMRegister dst, Register src, int imm8);
1414 void pinsrq(XMMRegister dst, Register src, int imm8);
1415
1416 // SSE4.1 packed move
1417 void pmovzxbw(XMMRegister dst, XMMRegister src);
1418 void pmovzxbw(XMMRegister dst, Address src);
1419
1420 #ifndef _LP64 // no 32bit push/pop on amd64
1421 void popl(Address dst);
1422 #endif
1423
1424 #ifdef _LP64
1425 void popq(Address dst);
1426 #endif
1427
1428 void popcntl(Register dst, Address src);
1429 void popcntl(Register dst, Register src);
1430
1431 #ifdef _LP64
1432 void popcntq(Register dst, Address src);
1433 void popcntq(Register dst, Register src);
1434 #endif
1435
1436 // Prefetches (SSE, SSE2, 3DNOW only)
1437
1438 void prefetchnta(Address src);
1439 void prefetchr(Address src);
1440 void prefetcht0(Address src);
1441 void prefetcht1(Address src);
1442 void prefetcht2(Address src);
1443 void prefetchw(Address src);
1444
1445 // Shuffle Bytes
1446 void pshufb(XMMRegister dst, XMMRegister src);
1447 void pshufb(XMMRegister dst, Address src);
1448
1449 // Shuffle Packed Doublewords
1450 void pshufd(XMMRegister dst, XMMRegister src, int mode);
1451 void pshufd(XMMRegister dst, Address src, int mode);
1452
1453 // Shuffle Packed Low Words
1454 void pshuflw(XMMRegister dst, XMMRegister src, int mode);
1455 void pshuflw(XMMRegister dst, Address src, int mode);
1456
1457 // Shift Right by bytes Logical DoubleQuadword Immediate
1458 void psrldq(XMMRegister dst, int shift);
1459
1460 // Logical Compare 128bit
1461 void ptest(XMMRegister dst, XMMRegister src);
1462 void ptest(XMMRegister dst, Address src);
1463 // Logical Compare 256bit
1464 void vptest(XMMRegister dst, XMMRegister src);
1465 void vptest(XMMRegister dst, Address src);
1466
1467 // Interleave Low Bytes
1468 void punpcklbw(XMMRegister dst, XMMRegister src);
1469 void punpcklbw(XMMRegister dst, Address src);
1470
1471 // Interleave Low Doublewords
1472 void punpckldq(XMMRegister dst, XMMRegister src);
1473 void punpckldq(XMMRegister dst, Address src);
1474
1475 // Interleave Low Quadwords
1476 void punpcklqdq(XMMRegister dst, XMMRegister src);
1477
1478 #ifndef _LP64 // no 32bit push/pop on amd64
1479 void pushl(Address src);
1480 #endif
1481
1482 void pushq(Address src);
1483
1484 void rcll(Register dst, int imm8);
1485
1486 void rclq(Register dst, int imm8);
1487
1488 void ret(int imm16);
1489
1490 void sahf();
1491
1492 void sarl(Register dst, int imm8);
1493 void sarl(Register dst);
1494
1495 void sarq(Register dst, int imm8);
1496 void sarq(Register dst);
1497
1498 void sbbl(Address dst, int32_t imm32);
1499 void sbbl(Register dst, int32_t imm32);
1500 void sbbl(Register dst, Address src);
1501 void sbbl(Register dst, Register src);
1502
1503 void sbbq(Address dst, int32_t imm32);
1504 void sbbq(Register dst, int32_t imm32);
1505 void sbbq(Register dst, Address src);
1506 void sbbq(Register dst, Register src);
1507
1508 void setb(Condition cc, Register dst);
1509
1510 void shldl(Register dst, Register src);
1511
1512 void shll(Register dst, int imm8);
1513 void shll(Register dst);
1514
1515 void shlq(Register dst, int imm8);
1516 void shlq(Register dst);
1517
1518 void shrdl(Register dst, Register src);
1519
1520 void shrl(Register dst, int imm8);
1521 void shrl(Register dst);
1522
1523 void shrq(Register dst, int imm8);
1524 void shrq(Register dst);
1525
1526 void smovl(); // QQQ generic?
1527
1528 // Compute Square Root of Scalar Double-Precision Floating-Point Value
1529 void sqrtsd(XMMRegister dst, Address src);
1530 void sqrtsd(XMMRegister dst, XMMRegister src);
1531
1532 // Compute Square Root of Scalar Single-Precision Floating-Point Value
1533 void sqrtss(XMMRegister dst, Address src);
1534 void sqrtss(XMMRegister dst, XMMRegister src);
1535
1536 void std();
1537
1538 void stmxcsr( Address dst );
1539
1540 void subl(Address dst, int32_t imm32);
1541 void subl(Address dst, Register src);
1542 void subl(Register dst, int32_t imm32);
1543 void subl(Register dst, Address src);
1544 void subl(Register dst, Register src);
1545
1546 void subq(Address dst, int32_t imm32);
1547 void subq(Address dst, Register src);
1548 void subq(Register dst, int32_t imm32);
1549 void subq(Register dst, Address src);
1550 void subq(Register dst, Register src);
1551
1552 // Force generation of a 4 byte immediate value even if it fits into 8bit
1553 void subl_imm32(Register dst, int32_t imm32);
1554 void subq_imm32(Register dst, int32_t imm32);
1555
1556 // Subtract Scalar Double-Precision Floating-Point Values
1557 void subsd(XMMRegister dst, Address src);
1558 void subsd(XMMRegister dst, XMMRegister src);
1559
1560 // Subtract Scalar Single-Precision Floating-Point Values
1561 void subss(XMMRegister dst, Address src);
1562 void subss(XMMRegister dst, XMMRegister src);
1563
1564 void testb(Register dst, int imm8);
1565
1566 void testl(Register dst, int32_t imm32);
1567 void testl(Register dst, Register src);
1568 void testl(Register dst, Address src);
1569
1570 void testq(Register dst, int32_t imm32);
1571 void testq(Register dst, Register src);
1572
1573
1574 // Unordered Compare Scalar Double-Precision Floating-Point Values and set EFLAGS
1575 void ucomisd(XMMRegister dst, Address src);
1576 void ucomisd(XMMRegister dst, XMMRegister src);
1577
1578 // Unordered Compare Scalar Single-Precision Floating-Point Values and set EFLAGS
1579 void ucomiss(XMMRegister dst, Address src);
1580 void ucomiss(XMMRegister dst, XMMRegister src);
1581
1582 void xaddl(Address dst, Register src);
1583
1584 void xaddq(Address dst, Register src);
1585
1586 void xchgl(Register reg, Address adr);
1587 void xchgl(Register dst, Register src);
1588
1589 void xchgq(Register reg, Address adr);
1590 void xchgq(Register dst, Register src);
1591
1592 // Get Value of Extended Control Register
1593 void xgetbv();
1594
1595 void xorl(Register dst, int32_t imm32);
1596 void xorl(Register dst, Address src);
1597 void xorl(Register dst, Register src);
1598
1599 void xorq(Register dst, Address src);
1600 void xorq(Register dst, Register src);
1601
1602 void set_byte_if_not_zero(Register dst); // sets reg to 1 if not zero, otherwise 0
1603
1604 // AVX 3-operands scalar instructions (encoded with VEX prefix)
1605
1606 void vaddsd(XMMRegister dst, XMMRegister nds, Address src);
1607 void vaddsd(XMMRegister dst, XMMRegister nds, XMMRegister src);
1608 void vaddss(XMMRegister dst, XMMRegister nds, Address src);
1609 void vaddss(XMMRegister dst, XMMRegister nds, XMMRegister src);
1610 void vdivsd(XMMRegister dst, XMMRegister nds, Address src);
1611 void vdivsd(XMMRegister dst, XMMRegister nds, XMMRegister src);
1612 void vdivss(XMMRegister dst, XMMRegister nds, Address src);
1613 void vdivss(XMMRegister dst, XMMRegister nds, XMMRegister src);
1614 void vmulsd(XMMRegister dst, XMMRegister nds, Address src);
1615 void vmulsd(XMMRegister dst, XMMRegister nds, XMMRegister src);
1616 void vmulss(XMMRegister dst, XMMRegister nds, Address src);
1617 void vmulss(XMMRegister dst, XMMRegister nds, XMMRegister src);
1618 void vsubsd(XMMRegister dst, XMMRegister nds, Address src);
1619 void vsubsd(XMMRegister dst, XMMRegister nds, XMMRegister src);
1620 void vsubss(XMMRegister dst, XMMRegister nds, Address src);
1621 void vsubss(XMMRegister dst, XMMRegister nds, XMMRegister src);
1622
1623
1624 //====================VECTOR ARITHMETIC=====================================
1625
1626 // Add Packed Floating-Point Values
1627 void addpd(XMMRegister dst, XMMRegister src);
1628 void addps(XMMRegister dst, XMMRegister src);
1629 void vaddpd(XMMRegister dst, XMMRegister nds, XMMRegister src, bool vector256);
1630 void vaddps(XMMRegister dst, XMMRegister nds, XMMRegister src, bool vector256);
1631 void vaddpd(XMMRegister dst, XMMRegister nds, Address src, bool vector256);
1632 void vaddps(XMMRegister dst, XMMRegister nds, Address src, bool vector256);
1633
1634 // Subtract Packed Floating-Point Values
1635 void subpd(XMMRegister dst, XMMRegister src);
1636 void subps(XMMRegister dst, XMMRegister src);
1637 void vsubpd(XMMRegister dst, XMMRegister nds, XMMRegister src, bool vector256);
1638 void vsubps(XMMRegister dst, XMMRegister nds, XMMRegister src, bool vector256);
1639 void vsubpd(XMMRegister dst, XMMRegister nds, Address src, bool vector256);
1640 void vsubps(XMMRegister dst, XMMRegister nds, Address src, bool vector256);
1641
1642 // Multiply Packed Floating-Point Values
1643 void mulpd(XMMRegister dst, XMMRegister src);
1644 void mulps(XMMRegister dst, XMMRegister src);
1645 void vmulpd(XMMRegister dst, XMMRegister nds, XMMRegister src, bool vector256);
1646 void vmulps(XMMRegister dst, XMMRegister nds, XMMRegister src, bool vector256);
1647 void vmulpd(XMMRegister dst, XMMRegister nds, Address src, bool vector256);
1648 void vmulps(XMMRegister dst, XMMRegister nds, Address src, bool vector256);
1649
1650 // Divide Packed Floating-Point Values
1651 void divpd(XMMRegister dst, XMMRegister src);
1652 void divps(XMMRegister dst, XMMRegister src);
1653 void vdivpd(XMMRegister dst, XMMRegister nds, XMMRegister src, bool vector256);
1654 void vdivps(XMMRegister dst, XMMRegister nds, XMMRegister src, bool vector256);
1655 void vdivpd(XMMRegister dst, XMMRegister nds, Address src, bool vector256);
1656 void vdivps(XMMRegister dst, XMMRegister nds, Address src, bool vector256);
1657
1658 // Bitwise Logical AND of Packed Floating-Point Values
1659 void andpd(XMMRegister dst, XMMRegister src);
1660 void andps(XMMRegister dst, XMMRegister src);
1661 void vandpd(XMMRegister dst, XMMRegister nds, XMMRegister src, bool vector256);
1662 void vandps(XMMRegister dst, XMMRegister nds, XMMRegister src, bool vector256);
1663 void vandpd(XMMRegister dst, XMMRegister nds, Address src, bool vector256);
1664 void vandps(XMMRegister dst, XMMRegister nds, Address src, bool vector256);
1665
1666 // Bitwise Logical XOR of Packed Floating-Point Values
1667 void xorpd(XMMRegister dst, XMMRegister src);
1668 void xorps(XMMRegister dst, XMMRegister src);
1669 void vxorpd(XMMRegister dst, XMMRegister nds, XMMRegister src, bool vector256);
1670 void vxorps(XMMRegister dst, XMMRegister nds, XMMRegister src, bool vector256);
1671 void vxorpd(XMMRegister dst, XMMRegister nds, Address src, bool vector256);
1672 void vxorps(XMMRegister dst, XMMRegister nds, Address src, bool vector256);
1673
1674 // Add packed integers
1675 void paddb(XMMRegister dst, XMMRegister src);
1676 void paddw(XMMRegister dst, XMMRegister src);
1677 void paddd(XMMRegister dst, XMMRegister src);
1678 void paddq(XMMRegister dst, XMMRegister src);
1679 void vpaddb(XMMRegister dst, XMMRegister nds, XMMRegister src, bool vector256);
1680 void vpaddw(XMMRegister dst, XMMRegister nds, XMMRegister src, bool vector256);
1681 void vpaddd(XMMRegister dst, XMMRegister nds, XMMRegister src, bool vector256);
1682 void vpaddq(XMMRegister dst, XMMRegister nds, XMMRegister src, bool vector256);
1683 void vpaddb(XMMRegister dst, XMMRegister nds, Address src, bool vector256);
1684 void vpaddw(XMMRegister dst, XMMRegister nds, Address src, bool vector256);
1685 void vpaddd(XMMRegister dst, XMMRegister nds, Address src, bool vector256);
1686 void vpaddq(XMMRegister dst, XMMRegister nds, Address src, bool vector256);
1687
1688 // Sub packed integers
1689 void psubb(XMMRegister dst, XMMRegister src);
1690 void psubw(XMMRegister dst, XMMRegister src);
1691 void psubd(XMMRegister dst, XMMRegister src);
1692 void psubq(XMMRegister dst, XMMRegister src);
1693 void vpsubb(XMMRegister dst, XMMRegister nds, XMMRegister src, bool vector256);
1694 void vpsubw(XMMRegister dst, XMMRegister nds, XMMRegister src, bool vector256);
1695 void vpsubd(XMMRegister dst, XMMRegister nds, XMMRegister src, bool vector256);
1696 void vpsubq(XMMRegister dst, XMMRegister nds, XMMRegister src, bool vector256);
1697 void vpsubb(XMMRegister dst, XMMRegister nds, Address src, bool vector256);
1698 void vpsubw(XMMRegister dst, XMMRegister nds, Address src, bool vector256);
1699 void vpsubd(XMMRegister dst, XMMRegister nds, Address src, bool vector256);
1700 void vpsubq(XMMRegister dst, XMMRegister nds, Address src, bool vector256);
1701
1702 // Multiply packed integers (only shorts and ints)
1703 void pmullw(XMMRegister dst, XMMRegister src);
1704 void pmulld(XMMRegister dst, XMMRegister src);
1705 void vpmullw(XMMRegister dst, XMMRegister nds, XMMRegister src, bool vector256);
1706 void vpmulld(XMMRegister dst, XMMRegister nds, XMMRegister src, bool vector256);
1707 void vpmullw(XMMRegister dst, XMMRegister nds, Address src, bool vector256);
1708 void vpmulld(XMMRegister dst, XMMRegister nds, Address src, bool vector256);
1709
1710 // Shift left packed integers
1711 void psllw(XMMRegister dst, int shift);
1712 void pslld(XMMRegister dst, int shift);
1713 void psllq(XMMRegister dst, int shift);
1714 void psllw(XMMRegister dst, XMMRegister shift);
1715 void pslld(XMMRegister dst, XMMRegister shift);
1716 void psllq(XMMRegister dst, XMMRegister shift);
1717 void vpsllw(XMMRegister dst, XMMRegister src, int shift, bool vector256);
1718 void vpslld(XMMRegister dst, XMMRegister src, int shift, bool vector256);
1719 void vpsllq(XMMRegister dst, XMMRegister src, int shift, bool vector256);
1720 void vpsllw(XMMRegister dst, XMMRegister src, XMMRegister shift, bool vector256);
1721 void vpslld(XMMRegister dst, XMMRegister src, XMMRegister shift, bool vector256);
1722 void vpsllq(XMMRegister dst, XMMRegister src, XMMRegister shift, bool vector256);
1723
1724 // Logical shift right packed integers
1725 void psrlw(XMMRegister dst, int shift);
1726 void psrld(XMMRegister dst, int shift);
1727 void psrlq(XMMRegister dst, int shift);
1728 void psrlw(XMMRegister dst, XMMRegister shift);
1729 void psrld(XMMRegister dst, XMMRegister shift);
1730 void psrlq(XMMRegister dst, XMMRegister shift);
1731 void vpsrlw(XMMRegister dst, XMMRegister src, int shift, bool vector256);
1732 void vpsrld(XMMRegister dst, XMMRegister src, int shift, bool vector256);
1733 void vpsrlq(XMMRegister dst, XMMRegister src, int shift, bool vector256);
1734 void vpsrlw(XMMRegister dst, XMMRegister src, XMMRegister shift, bool vector256);
1735 void vpsrld(XMMRegister dst, XMMRegister src, XMMRegister shift, bool vector256);
1736 void vpsrlq(XMMRegister dst, XMMRegister src, XMMRegister shift, bool vector256);
1737
1738 // Arithmetic shift right packed integers (only shorts and ints, no instructions for longs)
1739 void psraw(XMMRegister dst, int shift);
1740 void psrad(XMMRegister dst, int shift);
1741 void psraw(XMMRegister dst, XMMRegister shift);
1742 void psrad(XMMRegister dst, XMMRegister shift);
1743 void vpsraw(XMMRegister dst, XMMRegister src, int shift, bool vector256);
1744 void vpsrad(XMMRegister dst, XMMRegister src, int shift, bool vector256);
1745 void vpsraw(XMMRegister dst, XMMRegister src, XMMRegister shift, bool vector256);
1746 void vpsrad(XMMRegister dst, XMMRegister src, XMMRegister shift, bool vector256);
1747
1748 // And packed integers
1749 void pand(XMMRegister dst, XMMRegister src);
1750 void vpand(XMMRegister dst, XMMRegister nds, XMMRegister src, bool vector256);
1751 void vpand(XMMRegister dst, XMMRegister nds, Address src, bool vector256);
1752
1753 // Or packed integers
1754 void por(XMMRegister dst, XMMRegister src);
1755 void vpor(XMMRegister dst, XMMRegister nds, XMMRegister src, bool vector256);
1756 void vpor(XMMRegister dst, XMMRegister nds, Address src, bool vector256);
1757
1758 // Xor packed integers
1759 void pxor(XMMRegister dst, XMMRegister src);
1760 void vpxor(XMMRegister dst, XMMRegister nds, XMMRegister src, bool vector256);
1761 void vpxor(XMMRegister dst, XMMRegister nds, Address src, bool vector256);
1762
1763 // Copy low 128bit into high 128bit of YMM registers.
1764 void vinsertf128h(XMMRegister dst, XMMRegister nds, XMMRegister src);
1765 void vinserti128h(XMMRegister dst, XMMRegister nds, XMMRegister src);
1766
1767 // Load/store high 128bit of YMM registers which does not destroy other half.
1768 void vinsertf128h(XMMRegister dst, Address src);
1769 void vinserti128h(XMMRegister dst, Address src);
1770 void vextractf128h(Address dst, XMMRegister src);
1771 void vextracti128h(Address dst, XMMRegister src);
1772
1773 // duplicate 4-bytes integer data from src into 8 locations in dest
1774 void vpbroadcastd(XMMRegister dst, XMMRegister src);
1775
1776 // Carry-Less Multiplication Quadword
1777 void vpclmulqdq(XMMRegister dst, XMMRegister nds, XMMRegister src, int mask);
1778
1779 // AVX instruction which is used to clear upper 128 bits of YMM registers and
1780 // to avoid transaction penalty between AVX and SSE states. There is no
1781 // penalty if legacy SSE instructions are encoded using VEX prefix because
1782 // they always clear upper 128 bits. It should be used before calling
1783 // runtime code and native libraries.
1784 void vzeroupper();
1785
1786 protected:
1787 // Next instructions require address alignment 16 bytes SSE mode.
1788 // They should be called only from corresponding MacroAssembler instructions.
1789 void andpd(XMMRegister dst, Address src);
1790 void andps(XMMRegister dst, Address src);
1791 void xorpd(XMMRegister dst, Address src);
1792 void xorps(XMMRegister dst, Address src);
1793
1794 };
1795
1796 #endif // CPU_X86_VM_ASSEMBLER_X86_HPP