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 #include "vm_version_x86.hpp"
30
31 class BiasedLockingCounters;
32
33 // Contains all the definitions needed for x86 assembly code generation.
34
35 // Calling convention
36 class Argument VALUE_OBJ_CLASS_SPEC {
37 public:
38 enum {
39 #ifdef _LP64
40 #ifdef _WIN64
41 n_int_register_parameters_c = 4, // rcx, rdx, r8, r9 (c_rarg0, c_rarg1, ...)
42 n_float_register_parameters_c = 4, // xmm0 - xmm3 (c_farg0, c_farg1, ... )
43 #else
44 n_int_register_parameters_c = 6, // rdi, rsi, rdx, rcx, r8, r9 (c_rarg0, c_rarg1, ...)
45 n_float_register_parameters_c = 8, // xmm0 - xmm7 (c_farg0, c_farg1, ... )
46 #endif // _WIN64
47 n_int_register_parameters_j = 6, // j_rarg0, j_rarg1, ...
48 n_float_register_parameters_j = 8 // j_farg0, j_farg1, ...
49 #else
50 n_register_parameters = 0 // 0 registers used to pass arguments
51 #endif // _LP64
52 };
53 };
54
55
56 #ifdef _LP64
57 // Symbolically name the register arguments used by the c calling convention.
58 // Windows is different from linux/solaris. So much for standards...
59
60 #ifdef _WIN64
61
62 REGISTER_DECLARATION(Register, c_rarg0, rcx);
63 REGISTER_DECLARATION(Register, c_rarg1, rdx);
64 REGISTER_DECLARATION(Register, c_rarg2, r8);
65 REGISTER_DECLARATION(Register, c_rarg3, r9);
66
67 REGISTER_DECLARATION(XMMRegister, c_farg0, xmm0);
68 REGISTER_DECLARATION(XMMRegister, c_farg1, xmm1);
69 REGISTER_DECLARATION(XMMRegister, c_farg2, xmm2);
70 REGISTER_DECLARATION(XMMRegister, c_farg3, xmm3);
71
72 #else
73
74 REGISTER_DECLARATION(Register, c_rarg0, rdi);
75 REGISTER_DECLARATION(Register, c_rarg1, rsi);
76 REGISTER_DECLARATION(Register, c_rarg2, rdx);
77 REGISTER_DECLARATION(Register, c_rarg3, rcx);
78 REGISTER_DECLARATION(Register, c_rarg4, r8);
79 REGISTER_DECLARATION(Register, c_rarg5, r9);
80
81 REGISTER_DECLARATION(XMMRegister, c_farg0, xmm0);
82 REGISTER_DECLARATION(XMMRegister, c_farg1, xmm1);
83 REGISTER_DECLARATION(XMMRegister, c_farg2, xmm2);
84 REGISTER_DECLARATION(XMMRegister, c_farg3, xmm3);
85 REGISTER_DECLARATION(XMMRegister, c_farg4, xmm4);
86 REGISTER_DECLARATION(XMMRegister, c_farg5, xmm5);
87 REGISTER_DECLARATION(XMMRegister, c_farg6, xmm6);
88 REGISTER_DECLARATION(XMMRegister, c_farg7, xmm7);
89
90 #endif // _WIN64
91
92 // Symbolically name the register arguments used by the Java calling convention.
93 // We have control over the convention for java so we can do what we please.
94 // What pleases us is to offset the java calling convention so that when
95 // we call a suitable jni method the arguments are lined up and we don't
96 // have to do little shuffling. A suitable jni method is non-static and a
97 // small number of arguments (two fewer args on windows)
98 //
99 // |-------------------------------------------------------|
100 // | c_rarg0 c_rarg1 c_rarg2 c_rarg3 c_rarg4 c_rarg5 |
101 // |-------------------------------------------------------|
102 // | rcx rdx r8 r9 rdi* rsi* | windows (* not a c_rarg)
103 // | rdi rsi rdx rcx r8 r9 | solaris/linux
104 // |-------------------------------------------------------|
105 // | j_rarg5 j_rarg0 j_rarg1 j_rarg2 j_rarg3 j_rarg4 |
106 // |-------------------------------------------------------|
107
108 REGISTER_DECLARATION(Register, j_rarg0, c_rarg1);
109 REGISTER_DECLARATION(Register, j_rarg1, c_rarg2);
110 REGISTER_DECLARATION(Register, j_rarg2, c_rarg3);
111 // Windows runs out of register args here
112 #ifdef _WIN64
113 REGISTER_DECLARATION(Register, j_rarg3, rdi);
114 REGISTER_DECLARATION(Register, j_rarg4, rsi);
115 #else
116 REGISTER_DECLARATION(Register, j_rarg3, c_rarg4);
117 REGISTER_DECLARATION(Register, j_rarg4, c_rarg5);
118 #endif /* _WIN64 */
119 REGISTER_DECLARATION(Register, j_rarg5, c_rarg0);
120
121 REGISTER_DECLARATION(XMMRegister, j_farg0, xmm0);
122 REGISTER_DECLARATION(XMMRegister, j_farg1, xmm1);
123 REGISTER_DECLARATION(XMMRegister, j_farg2, xmm2);
124 REGISTER_DECLARATION(XMMRegister, j_farg3, xmm3);
125 REGISTER_DECLARATION(XMMRegister, j_farg4, xmm4);
126 REGISTER_DECLARATION(XMMRegister, j_farg5, xmm5);
127 REGISTER_DECLARATION(XMMRegister, j_farg6, xmm6);
128 REGISTER_DECLARATION(XMMRegister, j_farg7, xmm7);
129
130 REGISTER_DECLARATION(Register, rscratch1, r10); // volatile
131 REGISTER_DECLARATION(Register, rscratch2, r11); // volatile
132
133 REGISTER_DECLARATION(Register, r12_heapbase, r12); // callee-saved
134 REGISTER_DECLARATION(Register, r15_thread, r15); // callee-saved
135
136 #else
137 // rscratch1 will apear in 32bit code that is dead but of course must compile
138 // Using noreg ensures if the dead code is incorrectly live and executed it
139 // will cause an assertion failure
140 #define rscratch1 noreg
141 #define rscratch2 noreg
142
143 #endif // _LP64
144
145 // JSR 292 fixed register usages:
146 REGISTER_DECLARATION(Register, rbp_mh_SP_save, rbp);
147
148 // Address is an abstraction used to represent a memory location
149 // using any of the amd64 addressing modes with one object.
150 //
151 // Note: A register location is represented via a Register, not
152 // via an address for efficiency & simplicity reasons.
153
154 class ArrayAddress;
155
156 class Address VALUE_OBJ_CLASS_SPEC {
157 public:
158 enum ScaleFactor {
159 no_scale = -1,
160 times_1 = 0,
161 times_2 = 1,
162 times_4 = 2,
163 times_8 = 3,
164 times_ptr = LP64_ONLY(times_8) NOT_LP64(times_4)
165 };
166 static ScaleFactor times(int size) {
167 assert(size >= 1 && size <= 8 && is_power_of_2(size), "bad scale size");
168 if (size == 8) return times_8;
169 if (size == 4) return times_4;
170 if (size == 2) return times_2;
171 return times_1;
172 }
173 static int scale_size(ScaleFactor scale) {
174 assert(scale != no_scale, "");
175 assert(((1 << (int)times_1) == 1 &&
176 (1 << (int)times_2) == 2 &&
177 (1 << (int)times_4) == 4 &&
178 (1 << (int)times_8) == 8), "");
179 return (1 << (int)scale);
180 }
181
182 private:
183 Register _base;
184 Register _index;
185 ScaleFactor _scale;
186 int _disp;
187 RelocationHolder _rspec;
188
189 // Easily misused constructors make them private
190 // %%% can we make these go away?
191 NOT_LP64(Address(address loc, RelocationHolder spec);)
192 Address(int disp, address loc, relocInfo::relocType rtype);
193 Address(int disp, address loc, RelocationHolder spec);
194
195 public:
196
197 int disp() { return _disp; }
198 // creation
199 Address()
200 : _base(noreg),
201 _index(noreg),
202 _scale(no_scale),
203 _disp(0) {
204 }
205
206 // No default displacement otherwise Register can be implicitly
207 // converted to 0(Register) which is quite a different animal.
208
209 Address(Register base, int disp)
210 : _base(base),
211 _index(noreg),
212 _scale(no_scale),
213 _disp(disp) {
214 }
215
216 Address(Register base, Register index, ScaleFactor scale, int disp = 0)
217 : _base (base),
218 _index(index),
219 _scale(scale),
220 _disp (disp) {
221 assert(!index->is_valid() == (scale == Address::no_scale),
222 "inconsistent address");
223 }
224
225 Address(Register base, RegisterOrConstant index, ScaleFactor scale = times_1, int disp = 0)
226 : _base (base),
227 _index(index.register_or_noreg()),
228 _scale(scale),
229 _disp (disp + (index.constant_or_zero() * scale_size(scale))) {
230 if (!index.is_register()) scale = Address::no_scale;
231 assert(!_index->is_valid() == (scale == Address::no_scale),
232 "inconsistent address");
233 }
234
235 Address plus_disp(int disp) const {
236 Address a = (*this);
237 a._disp += disp;
238 return a;
239 }
240 Address plus_disp(RegisterOrConstant disp, ScaleFactor scale = times_1) const {
241 Address a = (*this);
242 a._disp += disp.constant_or_zero() * scale_size(scale);
243 if (disp.is_register()) {
244 assert(!a.index()->is_valid(), "competing indexes");
245 a._index = disp.as_register();
246 a._scale = scale;
247 }
248 return a;
249 }
250 bool is_same_address(Address a) const {
251 // disregard _rspec
252 return _base == a._base && _disp == a._disp && _index == a._index && _scale == a._scale;
253 }
254
255 // The following two overloads are used in connection with the
256 // ByteSize type (see sizes.hpp). They simplify the use of
257 // ByteSize'd arguments in assembly code. Note that their equivalent
258 // for the optimized build are the member functions with int disp
259 // argument since ByteSize is mapped to an int type in that case.
260 //
261 // Note: DO NOT introduce similar overloaded functions for WordSize
262 // arguments as in the optimized mode, both ByteSize and WordSize
263 // are mapped to the same type and thus the compiler cannot make a
264 // distinction anymore (=> compiler errors).
265
266 #ifdef ASSERT
267 Address(Register base, ByteSize disp)
268 : _base(base),
269 _index(noreg),
270 _scale(no_scale),
271 _disp(in_bytes(disp)) {
272 }
273
274 Address(Register base, Register index, ScaleFactor scale, ByteSize disp)
275 : _base(base),
276 _index(index),
277 _scale(scale),
278 _disp(in_bytes(disp)) {
279 assert(!index->is_valid() == (scale == Address::no_scale),
280 "inconsistent address");
281 }
282
283 Address(Register base, RegisterOrConstant index, ScaleFactor scale, ByteSize disp)
284 : _base (base),
285 _index(index.register_or_noreg()),
286 _scale(scale),
287 _disp (in_bytes(disp) + (index.constant_or_zero() * scale_size(scale))) {
288 if (!index.is_register()) scale = Address::no_scale;
289 assert(!_index->is_valid() == (scale == Address::no_scale),
290 "inconsistent address");
291 }
292
293 #endif // ASSERT
294
295 // accessors
296 bool uses(Register reg) const { return _base == reg || _index == reg; }
297 Register base() const { return _base; }
298 Register index() const { return _index; }
299 ScaleFactor scale() const { return _scale; }
300 int disp() const { return _disp; }
301
302 // Convert the raw encoding form into the form expected by the constructor for
303 // Address. An index of 4 (rsp) corresponds to having no index, so convert
304 // that to noreg for the Address constructor.
305 static Address make_raw(int base, int index, int scale, int disp, relocInfo::relocType disp_reloc);
306
307 static Address make_array(ArrayAddress);
308
309 private:
310 bool base_needs_rex() const {
311 return _base != noreg && _base->encoding() >= 8;
312 }
313
314 bool index_needs_rex() const {
315 return _index != noreg &&_index->encoding() >= 8;
316 }
317
318 relocInfo::relocType reloc() const { return _rspec.type(); }
319
320 friend class Assembler;
321 friend class MacroAssembler;
322 friend class LIR_Assembler; // base/index/scale/disp
323 };
324
325 //
326 // AddressLiteral has been split out from Address because operands of this type
327 // need to be treated specially on 32bit vs. 64bit platforms. By splitting it out
328 // the few instructions that need to deal with address literals are unique and the
329 // MacroAssembler does not have to implement every instruction in the Assembler
330 // in order to search for address literals that may need special handling depending
331 // on the instruction and the platform. As small step on the way to merging i486/amd64
332 // directories.
333 //
334 class AddressLiteral VALUE_OBJ_CLASS_SPEC {
335 friend class ArrayAddress;
336 RelocationHolder _rspec;
337 // Typically we use AddressLiterals we want to use their rval
338 // However in some situations we want the lval (effect address) of the item.
339 // We provide a special factory for making those lvals.
340 bool _is_lval;
341
342 // If the target is far we'll need to load the ea of this to
343 // a register to reach it. Otherwise if near we can do rip
344 // relative addressing.
345
346 address _target;
347
348 protected:
349 // creation
350 AddressLiteral()
351 : _is_lval(false),
352 _target(NULL)
353 {}
354
355 public:
356
357
358 AddressLiteral(address target, relocInfo::relocType rtype);
359
360 AddressLiteral(address target, RelocationHolder const& rspec)
361 : _rspec(rspec),
362 _is_lval(false),
363 _target(target)
364 {}
365
366 AddressLiteral addr() {
367 AddressLiteral ret = *this;
368 ret._is_lval = true;
369 return ret;
370 }
371
372
373 private:
374
375 address target() { return _target; }
376 bool is_lval() { return _is_lval; }
377
378 relocInfo::relocType reloc() const { return _rspec.type(); }
379 const RelocationHolder& rspec() const { return _rspec; }
380
381 friend class Assembler;
382 friend class MacroAssembler;
383 friend class Address;
384 friend class LIR_Assembler;
385 };
386
387 // Convience classes
388 class RuntimeAddress: public AddressLiteral {
389
390 public:
391
392 RuntimeAddress(address target) : AddressLiteral(target, relocInfo::runtime_call_type) {}
393
394 };
395
396 class ExternalAddress: public AddressLiteral {
397 private:
398 static relocInfo::relocType reloc_for_target(address target) {
399 // Sometimes ExternalAddress is used for values which aren't
400 // exactly addresses, like the card table base.
401 // external_word_type can't be used for values in the first page
402 // so just skip the reloc in that case.
403 return external_word_Relocation::can_be_relocated(target) ? relocInfo::external_word_type : relocInfo::none;
404 }
405
406 public:
407
408 ExternalAddress(address target) : AddressLiteral(target, reloc_for_target(target)) {}
409
410 };
411
412 class InternalAddress: public AddressLiteral {
413
414 public:
415
416 InternalAddress(address target) : AddressLiteral(target, relocInfo::internal_word_type) {}
417
418 };
419
420 // x86 can do array addressing as a single operation since disp can be an absolute
421 // address amd64 can't. We create a class that expresses the concept but does extra
422 // magic on amd64 to get the final result
423
424 class ArrayAddress VALUE_OBJ_CLASS_SPEC {
425 private:
426
427 AddressLiteral _base;
428 Address _index;
429
430 public:
431
432 ArrayAddress() {};
433 ArrayAddress(AddressLiteral base, Address index): _base(base), _index(index) {};
434 AddressLiteral base() { return _base; }
435 Address index() { return _index; }
436
437 };
438
439 const int FPUStateSizeInWords = NOT_LP64(27) LP64_ONLY( 512 / wordSize);
440
441 // The Intel x86/Amd64 Assembler: Pure assembler doing NO optimizations on the instruction
442 // level (e.g. mov rax, 0 is not translated into xor rax, rax!); i.e., what you write
443 // is what you get. The Assembler is generating code into a CodeBuffer.
444
445 class Assembler : public AbstractAssembler {
446 friend class AbstractAssembler; // for the non-virtual hack
447 friend class LIR_Assembler; // as_Address()
448 friend class StubGenerator;
449
450 public:
451 enum Condition { // The x86 condition codes used for conditional jumps/moves.
452 zero = 0x4,
453 notZero = 0x5,
454 equal = 0x4,
455 notEqual = 0x5,
456 less = 0xc,
457 lessEqual = 0xe,
458 greater = 0xf,
459 greaterEqual = 0xd,
460 below = 0x2,
461 belowEqual = 0x6,
462 above = 0x7,
463 aboveEqual = 0x3,
464 overflow = 0x0,
465 noOverflow = 0x1,
466 carrySet = 0x2,
467 carryClear = 0x3,
468 negative = 0x8,
469 positive = 0x9,
470 parity = 0xa,
471 noParity = 0xb
472 };
473
474 enum Prefix {
475 // segment overrides
476 CS_segment = 0x2e,
477 SS_segment = 0x36,
478 DS_segment = 0x3e,
479 ES_segment = 0x26,
480 FS_segment = 0x64,
481 GS_segment = 0x65,
482
483 REX = 0x40,
484
485 REX_B = 0x41,
486 REX_X = 0x42,
487 REX_XB = 0x43,
488 REX_R = 0x44,
489 REX_RB = 0x45,
490 REX_RX = 0x46,
491 REX_RXB = 0x47,
492
493 REX_W = 0x48,
494
495 REX_WB = 0x49,
496 REX_WX = 0x4A,
497 REX_WXB = 0x4B,
498 REX_WR = 0x4C,
499 REX_WRB = 0x4D,
500 REX_WRX = 0x4E,
501 REX_WRXB = 0x4F,
502
503 VEX_3bytes = 0xC4,
504 VEX_2bytes = 0xC5
505 };
506
507 enum VexPrefix {
508 VEX_B = 0x20,
509 VEX_X = 0x40,
510 VEX_R = 0x80,
511 VEX_W = 0x80
512 };
513
514 enum VexSimdPrefix {
515 VEX_SIMD_NONE = 0x0,
516 VEX_SIMD_66 = 0x1,
517 VEX_SIMD_F3 = 0x2,
518 VEX_SIMD_F2 = 0x3
519 };
520
521 enum VexOpcode {
522 VEX_OPCODE_NONE = 0x0,
523 VEX_OPCODE_0F = 0x1,
524 VEX_OPCODE_0F_38 = 0x2,
525 VEX_OPCODE_0F_3A = 0x3
526 };
527
528 enum WhichOperand {
529 // input to locate_operand, and format code for relocations
530 imm_operand = 0, // embedded 32-bit|64-bit immediate operand
531 disp32_operand = 1, // embedded 32-bit displacement or address
532 call32_operand = 2, // embedded 32-bit self-relative displacement
533 #ifndef _LP64
534 _WhichOperand_limit = 3
535 #else
536 narrow_oop_operand = 3, // embedded 32-bit immediate narrow oop
537 _WhichOperand_limit = 4
538 #endif
539 };
540
541
542
543 // NOTE: The general philopsophy of the declarations here is that 64bit versions
544 // of instructions are freely declared without the need for wrapping them an ifdef.
545 // (Some dangerous instructions are ifdef's out of inappropriate jvm's.)
546 // In the .cpp file the implementations are wrapped so that they are dropped out
547 // of the resulting jvm. This is done mostly to keep the footprint of MINIMAL
548 // to the size it was prior to merging up the 32bit and 64bit assemblers.
549 //
550 // This does mean you'll get a linker/runtime error if you use a 64bit only instruction
551 // in a 32bit vm. This is somewhat unfortunate but keeps the ifdef noise down.
552
553 private:
554
555
556 // 64bit prefixes
557 int prefix_and_encode(int reg_enc, bool byteinst = false);
558 int prefixq_and_encode(int reg_enc);
559
560 int prefix_and_encode(int dst_enc, int src_enc, bool byteinst = false);
561 int prefixq_and_encode(int dst_enc, int src_enc);
562
563 void prefix(Register reg);
564 void prefix(Address adr);
565 void prefixq(Address adr);
566
567 void prefix(Address adr, Register reg, bool byteinst = false);
568 void prefix(Address adr, XMMRegister reg);
569 void prefixq(Address adr, Register reg);
570 void prefixq(Address adr, XMMRegister reg);
571
572 void prefetch_prefix(Address src);
573
574 void rex_prefix(Address adr, XMMRegister xreg,
575 VexSimdPrefix pre, VexOpcode opc, bool rex_w);
576 int rex_prefix_and_encode(int dst_enc, int src_enc,
577 VexSimdPrefix pre, VexOpcode opc, bool rex_w);
578
579 void vex_prefix(bool vex_r, bool vex_b, bool vex_x, bool vex_w,
580 int nds_enc, VexSimdPrefix pre, VexOpcode opc,
581 bool vector256);
582
583 void vex_prefix(Address adr, int nds_enc, int xreg_enc,
584 VexSimdPrefix pre, VexOpcode opc,
585 bool vex_w, bool vector256);
586
587 void vex_prefix(XMMRegister dst, XMMRegister nds, Address src,
588 VexSimdPrefix pre, bool vector256 = false) {
589 int dst_enc = dst->encoding();
590 int nds_enc = nds->is_valid() ? nds->encoding() : 0;
591 vex_prefix(src, nds_enc, dst_enc, pre, VEX_OPCODE_0F, false, vector256);
592 }
593
594 void vex_prefix_0F38(Register dst, Register nds, Address src) {
595 bool vex_w = false;
596 bool vector256 = false;
597 vex_prefix(src, nds->encoding(), dst->encoding(),
598 VEX_SIMD_NONE, VEX_OPCODE_0F_38, vex_w, vector256);
599 }
600
601 void vex_prefix_0F38_q(Register dst, Register nds, Address src) {
602 bool vex_w = true;
603 bool vector256 = false;
604 vex_prefix(src, nds->encoding(), dst->encoding(),
605 VEX_SIMD_NONE, VEX_OPCODE_0F_38, vex_w, vector256);
606 }
607 int vex_prefix_and_encode(int dst_enc, int nds_enc, int src_enc,
608 VexSimdPrefix pre, VexOpcode opc,
609 bool vex_w, bool vector256);
610
611 int vex_prefix_0F38_and_encode(Register dst, Register nds, Register src) {
612 bool vex_w = false;
613 bool vector256 = false;
614 return vex_prefix_and_encode(dst->encoding(), nds->encoding(), src->encoding(),
615 VEX_SIMD_NONE, VEX_OPCODE_0F_38, vex_w, vector256);
616 }
617 int vex_prefix_0F38_and_encode_q(Register dst, Register nds, Register src) {
618 bool vex_w = true;
619 bool vector256 = false;
620 return vex_prefix_and_encode(dst->encoding(), nds->encoding(), src->encoding(),
621 VEX_SIMD_NONE, VEX_OPCODE_0F_38, vex_w, vector256);
622 }
623 int vex_prefix_and_encode(XMMRegister dst, XMMRegister nds, XMMRegister src,
624 VexSimdPrefix pre, bool vector256 = false,
625 VexOpcode opc = VEX_OPCODE_0F) {
626 int src_enc = src->encoding();
627 int dst_enc = dst->encoding();
628 int nds_enc = nds->is_valid() ? nds->encoding() : 0;
629 return vex_prefix_and_encode(dst_enc, nds_enc, src_enc, pre, opc, false, vector256);
630 }
631
632 void simd_prefix(XMMRegister xreg, XMMRegister nds, Address adr,
633 VexSimdPrefix pre, VexOpcode opc = VEX_OPCODE_0F,
634 bool rex_w = false, bool vector256 = false);
635
636 void simd_prefix(XMMRegister dst, Address src,
637 VexSimdPrefix pre, VexOpcode opc = VEX_OPCODE_0F) {
638 simd_prefix(dst, xnoreg, src, pre, opc);
639 }
640
641 void simd_prefix(Address dst, XMMRegister src, VexSimdPrefix pre) {
642 simd_prefix(src, dst, pre);
643 }
644 void simd_prefix_q(XMMRegister dst, XMMRegister nds, Address src,
645 VexSimdPrefix pre) {
646 bool rex_w = true;
647 simd_prefix(dst, nds, src, pre, VEX_OPCODE_0F, rex_w);
648 }
649
650 int simd_prefix_and_encode(XMMRegister dst, XMMRegister nds, XMMRegister src,
651 VexSimdPrefix pre, VexOpcode opc = VEX_OPCODE_0F,
652 bool rex_w = false, bool vector256 = false);
653
654 // Move/convert 32-bit integer value.
655 int simd_prefix_and_encode(XMMRegister dst, XMMRegister nds, Register src,
656 VexSimdPrefix pre) {
657 // It is OK to cast from Register to XMMRegister to pass argument here
658 // since only encoding is used in simd_prefix_and_encode() and number of
659 // Gen and Xmm registers are the same.
660 return simd_prefix_and_encode(dst, nds, as_XMMRegister(src->encoding()), pre);
661 }
662 int simd_prefix_and_encode(XMMRegister dst, Register src, VexSimdPrefix pre) {
663 return simd_prefix_and_encode(dst, xnoreg, src, pre);
664 }
665 int simd_prefix_and_encode(Register dst, XMMRegister src,
666 VexSimdPrefix pre, VexOpcode opc = VEX_OPCODE_0F) {
667 return simd_prefix_and_encode(as_XMMRegister(dst->encoding()), xnoreg, src, pre, opc);
668 }
669
670 // Move/convert 64-bit integer value.
671 int simd_prefix_and_encode_q(XMMRegister dst, XMMRegister nds, Register src,
672 VexSimdPrefix pre) {
673 bool rex_w = true;
674 return simd_prefix_and_encode(dst, nds, as_XMMRegister(src->encoding()), pre, VEX_OPCODE_0F, rex_w);
675 }
676 int simd_prefix_and_encode_q(XMMRegister dst, Register src, VexSimdPrefix pre) {
677 return simd_prefix_and_encode_q(dst, xnoreg, src, pre);
678 }
679 int simd_prefix_and_encode_q(Register dst, XMMRegister src,
680 VexSimdPrefix pre, VexOpcode opc = VEX_OPCODE_0F) {
681 bool rex_w = true;
682 return simd_prefix_and_encode(as_XMMRegister(dst->encoding()), xnoreg, src, pre, opc, rex_w);
683 }
684
685 // Helper functions for groups of instructions
686 void emit_arith_b(int op1, int op2, Register dst, int imm8);
687
688 void emit_arith(int op1, int op2, Register dst, int32_t imm32);
689 // Force generation of a 4 byte immediate value even if it fits into 8bit
690 void emit_arith_imm32(int op1, int op2, Register dst, int32_t imm32);
691 void emit_arith(int op1, int op2, Register dst, Register src);
692
693 void emit_simd_arith(int opcode, XMMRegister dst, Address src, VexSimdPrefix pre);
694 void emit_simd_arith(int opcode, XMMRegister dst, XMMRegister src, VexSimdPrefix pre);
695 void emit_simd_arith_nonds(int opcode, XMMRegister dst, Address src, VexSimdPrefix pre);
696 void emit_simd_arith_nonds(int opcode, XMMRegister dst, XMMRegister src, VexSimdPrefix pre);
697 void emit_vex_arith(int opcode, XMMRegister dst, XMMRegister nds,
698 Address src, VexSimdPrefix pre, bool vector256);
699 void emit_vex_arith(int opcode, XMMRegister dst, XMMRegister nds,
700 XMMRegister src, VexSimdPrefix pre, bool vector256);
701
702 void emit_operand(Register reg,
703 Register base, Register index, Address::ScaleFactor scale,
704 int disp,
705 RelocationHolder const& rspec,
706 int rip_relative_correction = 0);
707
708 void emit_operand(Register reg, Address adr, int rip_relative_correction = 0);
709
710 // operands that only take the original 32bit registers
711 void emit_operand32(Register reg, Address adr);
712
713 void emit_operand(XMMRegister reg,
714 Register base, Register index, Address::ScaleFactor scale,
715 int disp,
716 RelocationHolder const& rspec);
717
718 void emit_operand(XMMRegister reg, Address adr);
719
720 void emit_operand(MMXRegister reg, Address adr);
721
722 // workaround gcc (3.2.1-7) bug
723 void emit_operand(Address adr, MMXRegister reg);
724
725
726 // Immediate-to-memory forms
727 void emit_arith_operand(int op1, Register rm, Address adr, int32_t imm32);
728
729 void emit_farith(int b1, int b2, int i);
730
731
732 protected:
733 #ifdef ASSERT
734 void check_relocation(RelocationHolder const& rspec, int format);
735 #endif
736
737 void emit_data(jint data, relocInfo::relocType rtype, int format);
738 void emit_data(jint data, RelocationHolder const& rspec, int format);
739 void emit_data64(jlong data, relocInfo::relocType rtype, int format = 0);
740 void emit_data64(jlong data, RelocationHolder const& rspec, int format = 0);
741
742 bool reachable(AddressLiteral adr) NOT_LP64({ return true;});
743
744 // These are all easily abused and hence protected
745
746 // 32BIT ONLY SECTION
747 #ifndef _LP64
748 // Make these disappear in 64bit mode since they would never be correct
749 void cmp_literal32(Register src1, int32_t imm32, RelocationHolder const& rspec); // 32BIT ONLY
750 void cmp_literal32(Address src1, int32_t imm32, RelocationHolder const& rspec); // 32BIT ONLY
751
752 void mov_literal32(Register dst, int32_t imm32, RelocationHolder const& rspec); // 32BIT ONLY
753 void mov_literal32(Address dst, int32_t imm32, RelocationHolder const& rspec); // 32BIT ONLY
754
755 void push_literal32(int32_t imm32, RelocationHolder const& rspec); // 32BIT ONLY
756 #else
757 // 64BIT ONLY SECTION
758 void mov_literal64(Register dst, intptr_t imm64, RelocationHolder const& rspec); // 64BIT ONLY
759
760 void cmp_narrow_oop(Register src1, int32_t imm32, RelocationHolder const& rspec);
761 void cmp_narrow_oop(Address src1, int32_t imm32, RelocationHolder const& rspec);
762
763 void mov_narrow_oop(Register dst, int32_t imm32, RelocationHolder const& rspec);
764 void mov_narrow_oop(Address dst, int32_t imm32, RelocationHolder const& rspec);
765 #endif // _LP64
766
767 // These are unique in that we are ensured by the caller that the 32bit
768 // relative in these instructions will always be able to reach the potentially
769 // 64bit address described by entry. Since they can take a 64bit address they
770 // don't have the 32 suffix like the other instructions in this class.
771
772 void call_literal(address entry, RelocationHolder const& rspec);
773 void jmp_literal(address entry, RelocationHolder const& rspec);
774
775 // Avoid using directly section
776 // Instructions in this section are actually usable by anyone without danger
777 // of failure but have performance issues that are addressed my enhanced
778 // instructions which will do the proper thing base on the particular cpu.
779 // We protect them because we don't trust you...
780
781 // Don't use next inc() and dec() methods directly. INC & DEC instructions
782 // could cause a partial flag stall since they don't set CF flag.
783 // Use MacroAssembler::decrement() & MacroAssembler::increment() methods
784 // which call inc() & dec() or add() & sub() in accordance with
785 // the product flag UseIncDec value.
786
787 void decl(Register dst);
788 void decl(Address dst);
789 void decq(Register dst);
790 void decq(Address dst);
791
792 void incl(Register dst);
793 void incl(Address dst);
794 void incq(Register dst);
795 void incq(Address dst);
796
797 // New cpus require use of movsd and movss to avoid partial register stall
798 // when loading from memory. But for old Opteron use movlpd instead of movsd.
799 // The selection is done in MacroAssembler::movdbl() and movflt().
800
801 // Move Scalar Single-Precision Floating-Point Values
802 void movss(XMMRegister dst, Address src);
803 void movss(XMMRegister dst, XMMRegister src);
804 void movss(Address dst, XMMRegister src);
805
806 // Move Scalar Double-Precision Floating-Point Values
807 void movsd(XMMRegister dst, Address src);
808 void movsd(XMMRegister dst, XMMRegister src);
809 void movsd(Address dst, XMMRegister src);
810 void movlpd(XMMRegister dst, Address src);
811
812 // New cpus require use of movaps and movapd to avoid partial register stall
813 // when moving between registers.
814 void movaps(XMMRegister dst, XMMRegister src);
815 void movapd(XMMRegister dst, XMMRegister src);
816
817 // End avoid using directly
818
819
820 // Instruction prefixes
821 void prefix(Prefix p);
822
823 public:
824
825 // Creation
826 Assembler(CodeBuffer* code) : AbstractAssembler(code) {}
827
828 // Decoding
829 static address locate_operand(address inst, WhichOperand which);
830 static address locate_next_instruction(address inst);
831
832 // Utilities
833 static bool is_polling_page_far() NOT_LP64({ return false;});
834
835 // Generic instructions
836 // Does 32bit or 64bit as needed for the platform. In some sense these
837 // belong in macro assembler but there is no need for both varieties to exist
838
839 void lea(Register dst, Address src);
840
841 void mov(Register dst, Register src);
842
843 void pusha();
844 void popa();
845
846 void pushf();
847 void popf();
848
849 void push(int32_t imm32);
850
851 void push(Register src);
852
853 void pop(Register dst);
854
855 // These are dummies to prevent surprise implicit conversions to Register
856 void push(void* v);
857 void pop(void* v);
858
859 // These do register sized moves/scans
860 void rep_mov();
861 void rep_stos();
862 void rep_stosb();
863 void repne_scan();
864 #ifdef _LP64
865 void repne_scanl();
866 #endif
867
868 // Vanilla instructions in lexical order
869
870 void adcl(Address dst, int32_t imm32);
871 void adcl(Address dst, Register src);
872 void adcl(Register dst, int32_t imm32);
873 void adcl(Register dst, Address src);
874 void adcl(Register dst, Register src);
875
876 void adcq(Register dst, int32_t imm32);
877 void adcq(Register dst, Address src);
878 void adcq(Register dst, Register src);
879
880 void addl(Address dst, int32_t imm32);
881 void addl(Address dst, Register src);
882 void addl(Register dst, int32_t imm32);
883 void addl(Register dst, Address src);
884 void addl(Register dst, Register src);
885
886 void addq(Address dst, int32_t imm32);
887 void addq(Address dst, Register src);
888 void addq(Register dst, int32_t imm32);
889 void addq(Register dst, Address src);
890 void addq(Register dst, Register src);
891
892 void addr_nop_4();
893 void addr_nop_5();
894 void addr_nop_7();
895 void addr_nop_8();
896
897 // Add Scalar Double-Precision Floating-Point Values
898 void addsd(XMMRegister dst, Address src);
899 void addsd(XMMRegister dst, XMMRegister src);
900
901 // Add Scalar Single-Precision Floating-Point Values
902 void addss(XMMRegister dst, Address src);
903 void addss(XMMRegister dst, XMMRegister src);
904
905 // AES instructions
906 void aesdec(XMMRegister dst, Address src);
907 void aesdec(XMMRegister dst, XMMRegister src);
908 void aesdeclast(XMMRegister dst, Address src);
909 void aesdeclast(XMMRegister dst, XMMRegister src);
910 void aesenc(XMMRegister dst, Address src);
911 void aesenc(XMMRegister dst, XMMRegister src);
912 void aesenclast(XMMRegister dst, Address src);
913 void aesenclast(XMMRegister dst, XMMRegister src);
914
915
916 void andl(Address dst, int32_t imm32);
917 void andl(Register dst, int32_t imm32);
918 void andl(Register dst, Address src);
919 void andl(Register dst, Register src);
920
921 void andq(Address dst, int32_t imm32);
922 void andq(Register dst, int32_t imm32);
923 void andq(Register dst, Address src);
924 void andq(Register dst, Register src);
925
926 // BMI instructions
927 void andnl(Register dst, Register src1, Register src2);
928 void andnl(Register dst, Register src1, Address src2);
929 void andnq(Register dst, Register src1, Register src2);
930 void andnq(Register dst, Register src1, Address src2);
931
932 void blsil(Register dst, Register src);
933 void blsil(Register dst, Address src);
934 void blsiq(Register dst, Register src);
935 void blsiq(Register dst, Address src);
936
937 void blsmskl(Register dst, Register src);
938 void blsmskl(Register dst, Address src);
939 void blsmskq(Register dst, Register src);
940 void blsmskq(Register dst, Address src);
941
942 void blsrl(Register dst, Register src);
943 void blsrl(Register dst, Address src);
944 void blsrq(Register dst, Register src);
945 void blsrq(Register dst, Address src);
946
947 void bsfl(Register dst, Register src);
948 void bsrl(Register dst, Register src);
949
950 #ifdef _LP64
951 void bsfq(Register dst, Register src);
952 void bsrq(Register dst, Register src);
953 #endif
954
955 void bswapl(Register reg);
956
957 void bswapq(Register reg);
958
959 void call(Label& L, relocInfo::relocType rtype);
960 void call(Register reg); // push pc; pc <- reg
961 void call(Address adr); // push pc; pc <- adr
962
963 void cdql();
964
965 void cdqq();
966
967 void cld();
968
969 void clflush(Address adr);
970
971 void cmovl(Condition cc, Register dst, Register src);
972 void cmovl(Condition cc, Register dst, Address src);
973
974 void cmovq(Condition cc, Register dst, Register src);
975 void cmovq(Condition cc, Register dst, Address src);
976
977
978 void cmpb(Address dst, int imm8);
979
980 void cmpl(Address dst, int32_t imm32);
981
982 void cmpl(Register dst, int32_t imm32);
983 void cmpl(Register dst, Register src);
984 void cmpl(Register dst, Address src);
985
986 void cmpq(Address dst, int32_t imm32);
987 void cmpq(Address dst, Register src);
988
989 void cmpq(Register dst, int32_t imm32);
990 void cmpq(Register dst, Register src);
991 void cmpq(Register dst, Address src);
992
993 // these are dummies used to catch attempting to convert NULL to Register
994 void cmpl(Register dst, void* junk); // dummy
995 void cmpq(Register dst, void* junk); // dummy
996
997 void cmpw(Address dst, int imm16);
998
999 void cmpxchg8 (Address adr);
1000
1001 void cmpxchgl(Register reg, Address adr);
1002
1003 void cmpxchgq(Register reg, Address adr);
1004
1005 // Ordered Compare Scalar Double-Precision Floating-Point Values and set EFLAGS
1006 void comisd(XMMRegister dst, Address src);
1007 void comisd(XMMRegister dst, XMMRegister src);
1008
1009 // Ordered Compare Scalar Single-Precision Floating-Point Values and set EFLAGS
1010 void comiss(XMMRegister dst, Address src);
1011 void comiss(XMMRegister dst, XMMRegister src);
1012
1013 // Identify processor type and features
1014 void cpuid();
1015
1016 // Convert Scalar Double-Precision Floating-Point Value to Scalar Single-Precision Floating-Point Value
1017 void cvtsd2ss(XMMRegister dst, XMMRegister src);
1018 void cvtsd2ss(XMMRegister dst, Address src);
1019
1020 // Convert Doubleword Integer to Scalar Double-Precision Floating-Point Value
1021 void cvtsi2sdl(XMMRegister dst, Register src);
1022 void cvtsi2sdl(XMMRegister dst, Address src);
1023 void cvtsi2sdq(XMMRegister dst, Register src);
1024 void cvtsi2sdq(XMMRegister dst, Address src);
1025
1026 // Convert Doubleword Integer to Scalar Single-Precision Floating-Point Value
1027 void cvtsi2ssl(XMMRegister dst, Register src);
1028 void cvtsi2ssl(XMMRegister dst, Address src);
1029 void cvtsi2ssq(XMMRegister dst, Register src);
1030 void cvtsi2ssq(XMMRegister dst, Address src);
1031
1032 // Convert Packed Signed Doubleword Integers to Packed Double-Precision Floating-Point Value
1033 void cvtdq2pd(XMMRegister dst, XMMRegister src);
1034
1035 // Convert Packed Signed Doubleword Integers to Packed Single-Precision Floating-Point Value
1036 void cvtdq2ps(XMMRegister dst, XMMRegister src);
1037
1038 // Convert Scalar Single-Precision Floating-Point Value to Scalar Double-Precision Floating-Point Value
1039 void cvtss2sd(XMMRegister dst, XMMRegister src);
1040 void cvtss2sd(XMMRegister dst, Address src);
1041
1042 // Convert with Truncation Scalar Double-Precision Floating-Point Value to Doubleword Integer
1043 void cvttsd2sil(Register dst, Address src);
1044 void cvttsd2sil(Register dst, XMMRegister src);
1045 void cvttsd2siq(Register dst, XMMRegister src);
1046
1047 // Convert with Truncation Scalar Single-Precision Floating-Point Value to Doubleword Integer
1048 void cvttss2sil(Register dst, XMMRegister src);
1049 void cvttss2siq(Register dst, XMMRegister src);
1050
1051 // Divide Scalar Double-Precision Floating-Point Values
1052 void divsd(XMMRegister dst, Address src);
1053 void divsd(XMMRegister dst, XMMRegister src);
1054
1055 // Divide Scalar Single-Precision Floating-Point Values
1056 void divss(XMMRegister dst, Address src);
1057 void divss(XMMRegister dst, XMMRegister src);
1058
1059 void emms();
1060
1061 void fabs();
1062
1063 void fadd(int i);
1064
1065 void fadd_d(Address src);
1066 void fadd_s(Address src);
1067
1068 // "Alternate" versions of x87 instructions place result down in FPU
1069 // stack instead of on TOS
1070
1071 void fadda(int i); // "alternate" fadd
1072 void faddp(int i = 1);
1073
1074 void fchs();
1075
1076 void fcom(int i);
1077
1078 void fcomp(int i = 1);
1079 void fcomp_d(Address src);
1080 void fcomp_s(Address src);
1081
1082 void fcompp();
1083
1084 void fcos();
1085
1086 void fdecstp();
1087
1088 void fdiv(int i);
1089 void fdiv_d(Address src);
1090 void fdivr_s(Address src);
1091 void fdiva(int i); // "alternate" fdiv
1092 void fdivp(int i = 1);
1093
1094 void fdivr(int i);
1095 void fdivr_d(Address src);
1096 void fdiv_s(Address src);
1097
1098 void fdivra(int i); // "alternate" reversed fdiv
1099
1100 void fdivrp(int i = 1);
1101
1102 void ffree(int i = 0);
1103
1104 void fild_d(Address adr);
1105 void fild_s(Address adr);
1106
1107 void fincstp();
1108
1109 void finit();
1110
1111 void fist_s (Address adr);
1112 void fistp_d(Address adr);
1113 void fistp_s(Address adr);
1114
1115 void fld1();
1116
1117 void fld_d(Address adr);
1118 void fld_s(Address adr);
1119 void fld_s(int index);
1120 void fld_x(Address adr); // extended-precision (80-bit) format
1121
1122 void fldcw(Address src);
1123
1124 void fldenv(Address src);
1125
1126 void fldlg2();
1127
1128 void fldln2();
1129
1130 void fldz();
1131
1132 void flog();
1133 void flog10();
1134
1135 void fmul(int i);
1136
1137 void fmul_d(Address src);
1138 void fmul_s(Address src);
1139
1140 void fmula(int i); // "alternate" fmul
1141
1142 void fmulp(int i = 1);
1143
1144 void fnsave(Address dst);
1145
1146 void fnstcw(Address src);
1147
1148 void fnstsw_ax();
1149
1150 void fprem();
1151 void fprem1();
1152
1153 void frstor(Address src);
1154
1155 void fsin();
1156
1157 void fsqrt();
1158
1159 void fst_d(Address adr);
1160 void fst_s(Address adr);
1161
1162 void fstp_d(Address adr);
1163 void fstp_d(int index);
1164 void fstp_s(Address adr);
1165 void fstp_x(Address adr); // extended-precision (80-bit) format
1166
1167 void fsub(int i);
1168 void fsub_d(Address src);
1169 void fsub_s(Address src);
1170
1171 void fsuba(int i); // "alternate" fsub
1172
1173 void fsubp(int i = 1);
1174
1175 void fsubr(int i);
1176 void fsubr_d(Address src);
1177 void fsubr_s(Address src);
1178
1179 void fsubra(int i); // "alternate" reversed fsub
1180
1181 void fsubrp(int i = 1);
1182
1183 void ftan();
1184
1185 void ftst();
1186
1187 void fucomi(int i = 1);
1188 void fucomip(int i = 1);
1189
1190 void fwait();
1191
1192 void fxch(int i = 1);
1193
1194 void fxrstor(Address src);
1195
1196 void fxsave(Address dst);
1197
1198 void fyl2x();
1199 void frndint();
1200 void f2xm1();
1201 void fldl2e();
1202
1203 void hlt();
1204
1205 void idivl(Register src);
1206 void divl(Register src); // Unsigned division
1207
1208 void idivq(Register src);
1209
1210 void imull(Register dst, Register src);
1211 void imull(Register dst, Register src, int value);
1212 void imull(Register dst, Address src);
1213
1214 void imulq(Register dst, Register src);
1215 void imulq(Register dst, Register src, int value);
1216 #ifdef _LP64
1217 void imulq(Register dst, Address src);
1218 #endif
1219
1220
1221 // jcc is the generic conditional branch generator to run-
1222 // time routines, jcc is used for branches to labels. jcc
1223 // takes a branch opcode (cc) and a label (L) and generates
1224 // either a backward branch or a forward branch and links it
1225 // to the label fixup chain. Usage:
1226 //
1227 // Label L; // unbound label
1228 // jcc(cc, L); // forward branch to unbound label
1229 // bind(L); // bind label to the current pc
1230 // jcc(cc, L); // backward branch to bound label
1231 // bind(L); // illegal: a label may be bound only once
1232 //
1233 // Note: The same Label can be used for forward and backward branches
1234 // but it may be bound only once.
1235
1236 void jcc(Condition cc, Label& L, bool maybe_short = true);
1237
1238 // Conditional jump to a 8-bit offset to L.
1239 // WARNING: be very careful using this for forward jumps. If the label is
1240 // not bound within an 8-bit offset of this instruction, a run-time error
1241 // will occur.
1242 void jccb(Condition cc, Label& L);
1243
1244 void jmp(Address entry); // pc <- entry
1245
1246 // Label operations & relative jumps (PPUM Appendix D)
1247 void jmp(Label& L, bool maybe_short = true); // unconditional jump to L
1248
1249 void jmp(Register entry); // pc <- entry
1250
1251 // Unconditional 8-bit offset jump to L.
1252 // WARNING: be very careful using this for forward jumps. If the label is
1253 // not bound within an 8-bit offset of this instruction, a run-time error
1254 // will occur.
1255 void jmpb(Label& L);
1256
1257 void ldmxcsr( Address src );
1258
1259 void leal(Register dst, Address src);
1260
1261 void leaq(Register dst, Address src);
1262
1263 void lfence();
1264
1265 void lock();
1266
1267 void lzcntl(Register dst, Register src);
1268
1269 #ifdef _LP64
1270 void lzcntq(Register dst, Register src);
1271 #endif
1272
1273 enum Membar_mask_bits {
1274 StoreStore = 1 << 3,
1275 LoadStore = 1 << 2,
1276 StoreLoad = 1 << 1,
1277 LoadLoad = 1 << 0
1278 };
1279
1280 // Serializes memory and blows flags
1281 void membar(Membar_mask_bits order_constraint) {
1282 if (os::is_MP()) {
1283 // We only have to handle StoreLoad
1284 if (order_constraint & StoreLoad) {
1285 // All usable chips support "locked" instructions which suffice
1286 // as barriers, and are much faster than the alternative of
1287 // using cpuid instruction. We use here a locked add [esp-C],0.
1288 // This is conveniently otherwise a no-op except for blowing
1289 // flags, and introducing a false dependency on target memory
1290 // location. We can't do anything with flags, but we can avoid
1291 // memory dependencies in the current method by locked-adding
1292 // somewhere else on the stack. Doing [esp+C] will collide with
1293 // something on stack in current method, hence we go for [esp-C].
1294 // It is convenient since it is almost always in data cache, for
1295 // any small C. We need to step back from SP to avoid data
1296 // dependencies with other things on below SP (callee-saves, for
1297 // example). Without a clear way to figure out the minimal safe
1298 // distance from SP, it makes sense to step back the complete
1299 // cache line, as this will also avoid possible second-order effects
1300 // with locked ops against the cache line. Our choice of offset
1301 // is bounded by x86 operand encoding, which should stay within
1302 // [-128; +127] to have the 8-byte displacement encoding.
1303 //
1304 // Any change to this code may need to revisit other places in
1305 // the code where this idiom is used, in particular the
1306 // orderAccess code.
1307
1308 int offset = -VM_Version::L1_line_size();
1309 if (offset < -128) {
1310 offset = -128;
1311 }
1312
1313 lock();
1314 addl(Address(rsp, offset), 0);// Assert the lock# signal here
1315 }
1316 }
1317 }
1318
1319 void mfence();
1320
1321 // Moves
1322
1323 void mov64(Register dst, int64_t imm64);
1324
1325 void movb(Address dst, Register src);
1326 void movb(Address dst, int imm8);
1327 void movb(Register dst, Address src);
1328
1329 void movdl(XMMRegister dst, Register src);
1330 void movdl(Register dst, XMMRegister src);
1331 void movdl(XMMRegister dst, Address src);
1332 void movdl(Address dst, XMMRegister src);
1333
1334 // Move Double Quadword
1335 void movdq(XMMRegister dst, Register src);
1336 void movdq(Register dst, XMMRegister src);
1337
1338 // Move Aligned Double Quadword
1339 void movdqa(XMMRegister dst, XMMRegister src);
1340 void movdqa(XMMRegister dst, Address src);
1341
1342 // Move Unaligned Double Quadword
1343 void movdqu(Address dst, XMMRegister src);
1344 void movdqu(XMMRegister dst, Address src);
1345 void movdqu(XMMRegister dst, XMMRegister src);
1346
1347 // Move Unaligned 256bit Vector
1348 void vmovdqu(Address dst, XMMRegister src);
1349 void vmovdqu(XMMRegister dst, Address src);
1350 void vmovdqu(XMMRegister dst, XMMRegister src);
1351
1352 // Move lower 64bit to high 64bit in 128bit register
1353 void movlhps(XMMRegister dst, XMMRegister src);
1354
1355 void movl(Register dst, int32_t imm32);
1356 void movl(Address dst, int32_t imm32);
1357 void movl(Register dst, Register src);
1358 void movl(Register dst, Address src);
1359 void movl(Address dst, Register src);
1360
1361 // These dummies prevent using movl from converting a zero (like NULL) into Register
1362 // by giving the compiler two choices it can't resolve
1363
1364 void movl(Address dst, void* junk);
1365 void movl(Register dst, void* junk);
1366
1367 #ifdef _LP64
1368 void movq(Register dst, Register src);
1369 void movq(Register dst, Address src);
1370 void movq(Address dst, Register src);
1371 #endif
1372
1373 void movq(Address dst, MMXRegister src );
1374 void movq(MMXRegister dst, Address src );
1375
1376 #ifdef _LP64
1377 // These dummies prevent using movq from converting a zero (like NULL) into Register
1378 // by giving the compiler two choices it can't resolve
1379
1380 void movq(Address dst, void* dummy);
1381 void movq(Register dst, void* dummy);
1382 #endif
1383
1384 // Move Quadword
1385 void movq(Address dst, XMMRegister src);
1386 void movq(XMMRegister dst, Address src);
1387
1388 void movsbl(Register dst, Address src);
1389 void movsbl(Register dst, Register src);
1390
1391 #ifdef _LP64
1392 void movsbq(Register dst, Address src);
1393 void movsbq(Register dst, Register src);
1394
1395 // Move signed 32bit immediate to 64bit extending sign
1396 void movslq(Address dst, int32_t imm64);
1397 void movslq(Register dst, int32_t imm64);
1398
1399 void movslq(Register dst, Address src);
1400 void movslq(Register dst, Register src);
1401 void movslq(Register dst, void* src); // Dummy declaration to cause NULL to be ambiguous
1402 #endif
1403
1404 void movswl(Register dst, Address src);
1405 void movswl(Register dst, Register src);
1406
1407 #ifdef _LP64
1408 void movswq(Register dst, Address src);
1409 void movswq(Register dst, Register src);
1410 #endif
1411
1412 void movw(Address dst, int imm16);
1413 void movw(Register dst, Address src);
1414 void movw(Address dst, Register src);
1415
1416 void movzbl(Register dst, Address src);
1417 void movzbl(Register dst, Register src);
1418
1419 #ifdef _LP64
1420 void movzbq(Register dst, Address src);
1421 void movzbq(Register dst, Register src);
1422 #endif
1423
1424 void movzwl(Register dst, Address src);
1425 void movzwl(Register dst, Register src);
1426
1427 #ifdef _LP64
1428 void movzwq(Register dst, Address src);
1429 void movzwq(Register dst, Register src);
1430 #endif
1431
1432 void mull(Address src);
1433 void mull(Register src);
1434
1435 // Multiply Scalar Double-Precision Floating-Point Values
1436 void mulsd(XMMRegister dst, Address src);
1437 void mulsd(XMMRegister dst, XMMRegister src);
1438
1439 // Multiply Scalar Single-Precision Floating-Point Values
1440 void mulss(XMMRegister dst, Address src);
1441 void mulss(XMMRegister dst, XMMRegister src);
1442
1443 void negl(Register dst);
1444
1445 #ifdef _LP64
1446 void negq(Register dst);
1447 #endif
1448
1449 void nop(int i = 1);
1450
1451 void notl(Register dst);
1452
1453 #ifdef _LP64
1454 void notq(Register dst);
1455 #endif
1456
1457 void orl(Address dst, int32_t imm32);
1458 void orl(Register dst, int32_t imm32);
1459 void orl(Register dst, Address src);
1460 void orl(Register dst, Register src);
1461
1462 void orq(Address dst, int32_t imm32);
1463 void orq(Register dst, int32_t imm32);
1464 void orq(Register dst, Address src);
1465 void orq(Register dst, Register src);
1466
1467 // Pack with unsigned saturation
1468 void packuswb(XMMRegister dst, XMMRegister src);
1469 void packuswb(XMMRegister dst, Address src);
1470 void vpackuswb(XMMRegister dst, XMMRegister nds, XMMRegister src, bool vector256);
1471
1472 // Pemutation of 64bit words
1473 void vpermq(XMMRegister dst, XMMRegister src, int imm8, bool vector256);
1474
1475 void pause();
1476
1477 // SSE4.2 string instructions
1478 void pcmpestri(XMMRegister xmm1, XMMRegister xmm2, int imm8);
1479 void pcmpestri(XMMRegister xmm1, Address src, int imm8);
1480
1481 // SSE 4.1 extract
1482 void pextrd(Register dst, XMMRegister src, int imm8);
1483 void pextrq(Register dst, XMMRegister src, int imm8);
1484
1485 // SSE 4.1 insert
1486 void pinsrd(XMMRegister dst, Register src, int imm8);
1487 void pinsrq(XMMRegister dst, Register src, int imm8);
1488
1489 // SSE4.1 packed move
1490 void pmovzxbw(XMMRegister dst, XMMRegister src);
1491 void pmovzxbw(XMMRegister dst, Address src);
1492
1493 #ifndef _LP64 // no 32bit push/pop on amd64
1494 void popl(Address dst);
1495 #endif
1496
1497 #ifdef _LP64
1498 void popq(Address dst);
1499 #endif
1500
1501 void popcntl(Register dst, Address src);
1502 void popcntl(Register dst, Register src);
1503
1504 #ifdef _LP64
1505 void popcntq(Register dst, Address src);
1506 void popcntq(Register dst, Register src);
1507 #endif
1508
1509 // Prefetches (SSE, SSE2, 3DNOW only)
1510
1511 void prefetchnta(Address src);
1512 void prefetchr(Address src);
1513 void prefetcht0(Address src);
1514 void prefetcht1(Address src);
1515 void prefetcht2(Address src);
1516 void prefetchw(Address src);
1517
1518 // Shuffle Bytes
1519 void pshufb(XMMRegister dst, XMMRegister src);
1520 void pshufb(XMMRegister dst, Address src);
1521
1522 // Shuffle Packed Doublewords
1523 void pshufd(XMMRegister dst, XMMRegister src, int mode);
1524 void pshufd(XMMRegister dst, Address src, int mode);
1525
1526 // Shuffle Packed Low Words
1527 void pshuflw(XMMRegister dst, XMMRegister src, int mode);
1528 void pshuflw(XMMRegister dst, Address src, int mode);
1529
1530 // Shift Right by bytes Logical DoubleQuadword Immediate
1531 void psrldq(XMMRegister dst, int shift);
1532
1533 // Logical Compare 128bit
1534 void ptest(XMMRegister dst, XMMRegister src);
1535 void ptest(XMMRegister dst, Address src);
1536 // Logical Compare 256bit
1537 void vptest(XMMRegister dst, XMMRegister src);
1538 void vptest(XMMRegister dst, Address src);
1539
1540 // Interleave Low Bytes
1541 void punpcklbw(XMMRegister dst, XMMRegister src);
1542 void punpcklbw(XMMRegister dst, Address src);
1543
1544 // Interleave Low Doublewords
1545 void punpckldq(XMMRegister dst, XMMRegister src);
1546 void punpckldq(XMMRegister dst, Address src);
1547
1548 // Interleave Low Quadwords
1549 void punpcklqdq(XMMRegister dst, XMMRegister src);
1550
1551 #ifndef _LP64 // no 32bit push/pop on amd64
1552 void pushl(Address src);
1553 #endif
1554
1555 void pushq(Address src);
1556
1557 void rcll(Register dst, int imm8);
1558
1559 void rclq(Register dst, int imm8);
1560
1561 void rdtsc();
1562
1563 void ret(int imm16);
1564
1565 void sahf();
1566
1567 void sarl(Register dst, int imm8);
1568 void sarl(Register dst);
1569
1570 void sarq(Register dst, int imm8);
1571 void sarq(Register dst);
1572
1573 void sbbl(Address dst, int32_t imm32);
1574 void sbbl(Register dst, int32_t imm32);
1575 void sbbl(Register dst, Address src);
1576 void sbbl(Register dst, Register src);
1577
1578 void sbbq(Address dst, int32_t imm32);
1579 void sbbq(Register dst, int32_t imm32);
1580 void sbbq(Register dst, Address src);
1581 void sbbq(Register dst, Register src);
1582
1583 void setb(Condition cc, Register dst);
1584
1585 void shldl(Register dst, Register src);
1586
1587 void shll(Register dst, int imm8);
1588 void shll(Register dst);
1589
1590 void shlq(Register dst, int imm8);
1591 void shlq(Register dst);
1592
1593 void shrdl(Register dst, Register src);
1594
1595 void shrl(Register dst, int imm8);
1596 void shrl(Register dst);
1597
1598 void shrq(Register dst, int imm8);
1599 void shrq(Register dst);
1600
1601 void smovl(); // QQQ generic?
1602
1603 // Compute Square Root of Scalar Double-Precision Floating-Point Value
1604 void sqrtsd(XMMRegister dst, Address src);
1605 void sqrtsd(XMMRegister dst, XMMRegister src);
1606
1607 // Compute Square Root of Scalar Single-Precision Floating-Point Value
1608 void sqrtss(XMMRegister dst, Address src);
1609 void sqrtss(XMMRegister dst, XMMRegister src);
1610
1611 void std();
1612
1613 void stmxcsr( Address dst );
1614
1615 void subl(Address dst, int32_t imm32);
1616 void subl(Address dst, Register src);
1617 void subl(Register dst, int32_t imm32);
1618 void subl(Register dst, Address src);
1619 void subl(Register dst, Register src);
1620
1621 void subq(Address dst, int32_t imm32);
1622 void subq(Address dst, Register src);
1623 void subq(Register dst, int32_t imm32);
1624 void subq(Register dst, Address src);
1625 void subq(Register dst, Register src);
1626
1627 // Force generation of a 4 byte immediate value even if it fits into 8bit
1628 void subl_imm32(Register dst, int32_t imm32);
1629 void subq_imm32(Register dst, int32_t imm32);
1630
1631 // Subtract Scalar Double-Precision Floating-Point Values
1632 void subsd(XMMRegister dst, Address src);
1633 void subsd(XMMRegister dst, XMMRegister src);
1634
1635 // Subtract Scalar Single-Precision Floating-Point Values
1636 void subss(XMMRegister dst, Address src);
1637 void subss(XMMRegister dst, XMMRegister src);
1638
1639 void testb(Register dst, int imm8);
1640
1641 void testl(Register dst, int32_t imm32);
1642 void testl(Register dst, Register src);
1643 void testl(Register dst, Address src);
1644
1645 void testq(Register dst, int32_t imm32);
1646 void testq(Register dst, Register src);
1647
1648 // BMI - count trailing zeros
1649 void tzcntl(Register dst, Register src);
1650 void tzcntq(Register dst, Register src);
1651
1652 // Unordered Compare Scalar Double-Precision Floating-Point Values and set EFLAGS
1653 void ucomisd(XMMRegister dst, Address src);
1654 void ucomisd(XMMRegister dst, XMMRegister src);
1655
1656 // Unordered Compare Scalar Single-Precision Floating-Point Values and set EFLAGS
1657 void ucomiss(XMMRegister dst, Address src);
1658 void ucomiss(XMMRegister dst, XMMRegister src);
1659
1660 void xabort(int8_t imm8);
1661
1662 void xaddl(Address dst, Register src);
1663
1664 void xaddq(Address dst, Register src);
1665
1666 void xbegin(Label& abort, relocInfo::relocType rtype = relocInfo::none);
1667
1668 void xchgl(Register reg, Address adr);
1669 void xchgl(Register dst, Register src);
1670
1671 void xchgq(Register reg, Address adr);
1672 void xchgq(Register dst, Register src);
1673
1674 void xend();
1675
1676 // Get Value of Extended Control Register
1677 void xgetbv();
1678
1679 void xorl(Register dst, int32_t imm32);
1680 void xorl(Register dst, Address src);
1681 void xorl(Register dst, Register src);
1682
1683 void xorq(Register dst, Address src);
1684 void xorq(Register dst, Register src);
1685
1686 void set_byte_if_not_zero(Register dst); // sets reg to 1 if not zero, otherwise 0
1687
1688 // AVX 3-operands scalar instructions (encoded with VEX prefix)
1689
1690 void vaddsd(XMMRegister dst, XMMRegister nds, Address src);
1691 void vaddsd(XMMRegister dst, XMMRegister nds, XMMRegister src);
1692 void vaddss(XMMRegister dst, XMMRegister nds, Address src);
1693 void vaddss(XMMRegister dst, XMMRegister nds, XMMRegister src);
1694 void vdivsd(XMMRegister dst, XMMRegister nds, Address src);
1695 void vdivsd(XMMRegister dst, XMMRegister nds, XMMRegister src);
1696 void vdivss(XMMRegister dst, XMMRegister nds, Address src);
1697 void vdivss(XMMRegister dst, XMMRegister nds, XMMRegister src);
1698 void vmulsd(XMMRegister dst, XMMRegister nds, Address src);
1699 void vmulsd(XMMRegister dst, XMMRegister nds, XMMRegister src);
1700 void vmulss(XMMRegister dst, XMMRegister nds, Address src);
1701 void vmulss(XMMRegister dst, XMMRegister nds, XMMRegister src);
1702 void vsubsd(XMMRegister dst, XMMRegister nds, Address src);
1703 void vsubsd(XMMRegister dst, XMMRegister nds, XMMRegister src);
1704 void vsubss(XMMRegister dst, XMMRegister nds, Address src);
1705 void vsubss(XMMRegister dst, XMMRegister nds, XMMRegister src);
1706
1707
1708 //====================VECTOR ARITHMETIC=====================================
1709
1710 // Add Packed Floating-Point Values
1711 void addpd(XMMRegister dst, XMMRegister src);
1712 void addps(XMMRegister dst, XMMRegister src);
1713 void vaddpd(XMMRegister dst, XMMRegister nds, XMMRegister src, bool vector256);
1714 void vaddps(XMMRegister dst, XMMRegister nds, XMMRegister src, bool vector256);
1715 void vaddpd(XMMRegister dst, XMMRegister nds, Address src, bool vector256);
1716 void vaddps(XMMRegister dst, XMMRegister nds, Address src, bool vector256);
1717
1718 // Subtract Packed Floating-Point Values
1719 void subpd(XMMRegister dst, XMMRegister src);
1720 void subps(XMMRegister dst, XMMRegister src);
1721 void vsubpd(XMMRegister dst, XMMRegister nds, XMMRegister src, bool vector256);
1722 void vsubps(XMMRegister dst, XMMRegister nds, XMMRegister src, bool vector256);
1723 void vsubpd(XMMRegister dst, XMMRegister nds, Address src, bool vector256);
1724 void vsubps(XMMRegister dst, XMMRegister nds, Address src, bool vector256);
1725
1726 // Multiply Packed Floating-Point Values
1727 void mulpd(XMMRegister dst, XMMRegister src);
1728 void mulps(XMMRegister dst, XMMRegister src);
1729 void vmulpd(XMMRegister dst, XMMRegister nds, XMMRegister src, bool vector256);
1730 void vmulps(XMMRegister dst, XMMRegister nds, XMMRegister src, bool vector256);
1731 void vmulpd(XMMRegister dst, XMMRegister nds, Address src, bool vector256);
1732 void vmulps(XMMRegister dst, XMMRegister nds, Address src, bool vector256);
1733
1734 // Divide Packed Floating-Point Values
1735 void divpd(XMMRegister dst, XMMRegister src);
1736 void divps(XMMRegister dst, XMMRegister src);
1737 void vdivpd(XMMRegister dst, XMMRegister nds, XMMRegister src, bool vector256);
1738 void vdivps(XMMRegister dst, XMMRegister nds, XMMRegister src, bool vector256);
1739 void vdivpd(XMMRegister dst, XMMRegister nds, Address src, bool vector256);
1740 void vdivps(XMMRegister dst, XMMRegister nds, Address src, bool vector256);
1741
1742 // Bitwise Logical AND of Packed Floating-Point Values
1743 void andpd(XMMRegister dst, XMMRegister src);
1744 void andps(XMMRegister dst, XMMRegister src);
1745 void vandpd(XMMRegister dst, XMMRegister nds, XMMRegister src, bool vector256);
1746 void vandps(XMMRegister dst, XMMRegister nds, XMMRegister src, bool vector256);
1747 void vandpd(XMMRegister dst, XMMRegister nds, Address src, bool vector256);
1748 void vandps(XMMRegister dst, XMMRegister nds, Address src, bool vector256);
1749
1750 // Bitwise Logical XOR of Packed Floating-Point Values
1751 void xorpd(XMMRegister dst, XMMRegister src);
1752 void xorps(XMMRegister dst, XMMRegister src);
1753 void vxorpd(XMMRegister dst, XMMRegister nds, XMMRegister src, bool vector256);
1754 void vxorps(XMMRegister dst, XMMRegister nds, XMMRegister src, bool vector256);
1755 void vxorpd(XMMRegister dst, XMMRegister nds, Address src, bool vector256);
1756 void vxorps(XMMRegister dst, XMMRegister nds, Address src, bool vector256);
1757
1758 // Add packed integers
1759 void paddb(XMMRegister dst, XMMRegister src);
1760 void paddw(XMMRegister dst, XMMRegister src);
1761 void paddd(XMMRegister dst, XMMRegister src);
1762 void paddq(XMMRegister dst, XMMRegister src);
1763 void vpaddb(XMMRegister dst, XMMRegister nds, XMMRegister src, bool vector256);
1764 void vpaddw(XMMRegister dst, XMMRegister nds, XMMRegister src, bool vector256);
1765 void vpaddd(XMMRegister dst, XMMRegister nds, XMMRegister src, bool vector256);
1766 void vpaddq(XMMRegister dst, XMMRegister nds, XMMRegister src, bool vector256);
1767 void vpaddb(XMMRegister dst, XMMRegister nds, Address src, bool vector256);
1768 void vpaddw(XMMRegister dst, XMMRegister nds, Address src, bool vector256);
1769 void vpaddd(XMMRegister dst, XMMRegister nds, Address src, bool vector256);
1770 void vpaddq(XMMRegister dst, XMMRegister nds, Address src, bool vector256);
1771
1772 // Sub packed integers
1773 void psubb(XMMRegister dst, XMMRegister src);
1774 void psubw(XMMRegister dst, XMMRegister src);
1775 void psubd(XMMRegister dst, XMMRegister src);
1776 void psubq(XMMRegister dst, XMMRegister src);
1777 void vpsubb(XMMRegister dst, XMMRegister nds, XMMRegister src, bool vector256);
1778 void vpsubw(XMMRegister dst, XMMRegister nds, XMMRegister src, bool vector256);
1779 void vpsubd(XMMRegister dst, XMMRegister nds, XMMRegister src, bool vector256);
1780 void vpsubq(XMMRegister dst, XMMRegister nds, XMMRegister src, bool vector256);
1781 void vpsubb(XMMRegister dst, XMMRegister nds, Address src, bool vector256);
1782 void vpsubw(XMMRegister dst, XMMRegister nds, Address src, bool vector256);
1783 void vpsubd(XMMRegister dst, XMMRegister nds, Address src, bool vector256);
1784 void vpsubq(XMMRegister dst, XMMRegister nds, Address src, bool vector256);
1785
1786 // Multiply packed integers (only shorts and ints)
1787 void pmullw(XMMRegister dst, XMMRegister src);
1788 void pmulld(XMMRegister dst, XMMRegister src);
1789 void vpmullw(XMMRegister dst, XMMRegister nds, XMMRegister src, bool vector256);
1790 void vpmulld(XMMRegister dst, XMMRegister nds, XMMRegister src, bool vector256);
1791 void vpmullw(XMMRegister dst, XMMRegister nds, Address src, bool vector256);
1792 void vpmulld(XMMRegister dst, XMMRegister nds, Address src, bool vector256);
1793
1794 // Shift left packed integers
1795 void psllw(XMMRegister dst, int shift);
1796 void pslld(XMMRegister dst, int shift);
1797 void psllq(XMMRegister dst, int shift);
1798 void psllw(XMMRegister dst, XMMRegister shift);
1799 void pslld(XMMRegister dst, XMMRegister shift);
1800 void psllq(XMMRegister dst, XMMRegister shift);
1801 void vpsllw(XMMRegister dst, XMMRegister src, int shift, bool vector256);
1802 void vpslld(XMMRegister dst, XMMRegister src, int shift, bool vector256);
1803 void vpsllq(XMMRegister dst, XMMRegister src, int shift, bool vector256);
1804 void vpsllw(XMMRegister dst, XMMRegister src, XMMRegister shift, bool vector256);
1805 void vpslld(XMMRegister dst, XMMRegister src, XMMRegister shift, bool vector256);
1806 void vpsllq(XMMRegister dst, XMMRegister src, XMMRegister shift, bool vector256);
1807
1808 // Logical shift right packed integers
1809 void psrlw(XMMRegister dst, int shift);
1810 void psrld(XMMRegister dst, int shift);
1811 void psrlq(XMMRegister dst, int shift);
1812 void psrlw(XMMRegister dst, XMMRegister shift);
1813 void psrld(XMMRegister dst, XMMRegister shift);
1814 void psrlq(XMMRegister dst, XMMRegister shift);
1815 void vpsrlw(XMMRegister dst, XMMRegister src, int shift, bool vector256);
1816 void vpsrld(XMMRegister dst, XMMRegister src, int shift, bool vector256);
1817 void vpsrlq(XMMRegister dst, XMMRegister src, int shift, bool vector256);
1818 void vpsrlw(XMMRegister dst, XMMRegister src, XMMRegister shift, bool vector256);
1819 void vpsrld(XMMRegister dst, XMMRegister src, XMMRegister shift, bool vector256);
1820 void vpsrlq(XMMRegister dst, XMMRegister src, XMMRegister shift, bool vector256);
1821
1822 // Arithmetic shift right packed integers (only shorts and ints, no instructions for longs)
1823 void psraw(XMMRegister dst, int shift);
1824 void psrad(XMMRegister dst, int shift);
1825 void psraw(XMMRegister dst, XMMRegister shift);
1826 void psrad(XMMRegister dst, XMMRegister shift);
1827 void vpsraw(XMMRegister dst, XMMRegister src, int shift, bool vector256);
1828 void vpsrad(XMMRegister dst, XMMRegister src, int shift, bool vector256);
1829 void vpsraw(XMMRegister dst, XMMRegister src, XMMRegister shift, bool vector256);
1830 void vpsrad(XMMRegister dst, XMMRegister src, XMMRegister shift, bool vector256);
1831
1832 // And packed integers
1833 void pand(XMMRegister dst, XMMRegister src);
1834 void vpand(XMMRegister dst, XMMRegister nds, XMMRegister src, bool vector256);
1835 void vpand(XMMRegister dst, XMMRegister nds, Address src, bool vector256);
1836
1837 // Or packed integers
1838 void por(XMMRegister dst, XMMRegister src);
1839 void vpor(XMMRegister dst, XMMRegister nds, XMMRegister src, bool vector256);
1840 void vpor(XMMRegister dst, XMMRegister nds, Address src, bool vector256);
1841
1842 // Xor packed integers
1843 void pxor(XMMRegister dst, XMMRegister src);
1844 void vpxor(XMMRegister dst, XMMRegister nds, XMMRegister src, bool vector256);
1845 void vpxor(XMMRegister dst, XMMRegister nds, Address src, bool vector256);
1846
1847 // Copy low 128bit into high 128bit of YMM registers.
1848 void vinsertf128h(XMMRegister dst, XMMRegister nds, XMMRegister src);
1849 void vinserti128h(XMMRegister dst, XMMRegister nds, XMMRegister src);
1850
1851 // Load/store high 128bit of YMM registers which does not destroy other half.
1852 void vinsertf128h(XMMRegister dst, Address src);
1853 void vinserti128h(XMMRegister dst, Address src);
1854 void vextractf128h(Address dst, XMMRegister src);
1855 void vextracti128h(Address dst, XMMRegister src);
1856
1857 // duplicate 4-bytes integer data from src into 8 locations in dest
1858 void vpbroadcastd(XMMRegister dst, XMMRegister src);
1859
1860 // Carry-Less Multiplication Quadword
1861 void pclmulqdq(XMMRegister dst, XMMRegister src, int mask);
1862 void vpclmulqdq(XMMRegister dst, XMMRegister nds, XMMRegister src, int mask);
1863
1864 // AVX instruction which is used to clear upper 128 bits of YMM registers and
1865 // to avoid transaction penalty between AVX and SSE states. There is no
1866 // penalty if legacy SSE instructions are encoded using VEX prefix because
1867 // they always clear upper 128 bits. It should be used before calling
1868 // runtime code and native libraries.
1869 void vzeroupper();
1870
1871 protected:
1872 // Next instructions require address alignment 16 bytes SSE mode.
1873 // They should be called only from corresponding MacroAssembler instructions.
1874 void andpd(XMMRegister dst, Address src);
1875 void andps(XMMRegister dst, Address src);
1876 void xorpd(XMMRegister dst, Address src);
1877 void xorps(XMMRegister dst, Address src);
1878
1879 };
1880
1881 #endif // CPU_X86_VM_ASSEMBLER_X86_HPP