Mercurial > hg > truffle
annotate src/cpu/x86/vm/assembler_x86.hpp @ 4852:6d00795f99a1
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date | Wed, 25 Jan 2012 15:03:42 -0800 |
parents | 65149e74c706 |
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0 | 1 /* |
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2 * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved. |
0 | 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 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #ifndef CPU_X86_VM_ASSEMBLER_X86_HPP |
26 #define CPU_X86_VM_ASSEMBLER_X86_HPP | |
27 | |
0 | 28 class BiasedLockingCounters; |
29 | |
30 // Contains all the definitions needed for x86 assembly code generation. | |
31 | |
32 // Calling convention | |
33 class Argument VALUE_OBJ_CLASS_SPEC { | |
34 public: | |
35 enum { | |
36 #ifdef _LP64 | |
37 #ifdef _WIN64 | |
38 n_int_register_parameters_c = 4, // rcx, rdx, r8, r9 (c_rarg0, c_rarg1, ...) | |
39 n_float_register_parameters_c = 4, // xmm0 - xmm3 (c_farg0, c_farg1, ... ) | |
40 #else | |
41 n_int_register_parameters_c = 6, // rdi, rsi, rdx, rcx, r8, r9 (c_rarg0, c_rarg1, ...) | |
42 n_float_register_parameters_c = 8, // xmm0 - xmm7 (c_farg0, c_farg1, ... ) | |
43 #endif // _WIN64 | |
44 n_int_register_parameters_j = 6, // j_rarg0, j_rarg1, ... | |
45 n_float_register_parameters_j = 8 // j_farg0, j_farg1, ... | |
46 #else | |
47 n_register_parameters = 0 // 0 registers used to pass arguments | |
48 #endif // _LP64 | |
49 }; | |
50 }; | |
51 | |
52 | |
53 #ifdef _LP64 | |
54 // Symbolically name the register arguments used by the c calling convention. | |
55 // Windows is different from linux/solaris. So much for standards... | |
56 | |
57 #ifdef _WIN64 | |
58 | |
59 REGISTER_DECLARATION(Register, c_rarg0, rcx); | |
60 REGISTER_DECLARATION(Register, c_rarg1, rdx); | |
61 REGISTER_DECLARATION(Register, c_rarg2, r8); | |
62 REGISTER_DECLARATION(Register, c_rarg3, r9); | |
63 | |
304 | 64 REGISTER_DECLARATION(XMMRegister, c_farg0, xmm0); |
65 REGISTER_DECLARATION(XMMRegister, c_farg1, xmm1); | |
66 REGISTER_DECLARATION(XMMRegister, c_farg2, xmm2); | |
67 REGISTER_DECLARATION(XMMRegister, c_farg3, xmm3); | |
0 | 68 |
69 #else | |
70 | |
71 REGISTER_DECLARATION(Register, c_rarg0, rdi); | |
72 REGISTER_DECLARATION(Register, c_rarg1, rsi); | |
73 REGISTER_DECLARATION(Register, c_rarg2, rdx); | |
74 REGISTER_DECLARATION(Register, c_rarg3, rcx); | |
75 REGISTER_DECLARATION(Register, c_rarg4, r8); | |
76 REGISTER_DECLARATION(Register, c_rarg5, r9); | |
77 | |
304 | 78 REGISTER_DECLARATION(XMMRegister, c_farg0, xmm0); |
79 REGISTER_DECLARATION(XMMRegister, c_farg1, xmm1); | |
80 REGISTER_DECLARATION(XMMRegister, c_farg2, xmm2); | |
81 REGISTER_DECLARATION(XMMRegister, c_farg3, xmm3); | |
82 REGISTER_DECLARATION(XMMRegister, c_farg4, xmm4); | |
83 REGISTER_DECLARATION(XMMRegister, c_farg5, xmm5); | |
84 REGISTER_DECLARATION(XMMRegister, c_farg6, xmm6); | |
85 REGISTER_DECLARATION(XMMRegister, c_farg7, xmm7); | |
0 | 86 |
87 #endif // _WIN64 | |
88 | |
89 // Symbolically name the register arguments used by the Java calling convention. | |
90 // We have control over the convention for java so we can do what we please. | |
91 // What pleases us is to offset the java calling convention so that when | |
92 // we call a suitable jni method the arguments are lined up and we don't | |
93 // have to do little shuffling. A suitable jni method is non-static and a | |
94 // small number of arguments (two fewer args on windows) | |
95 // | |
96 // |-------------------------------------------------------| | |
97 // | c_rarg0 c_rarg1 c_rarg2 c_rarg3 c_rarg4 c_rarg5 | | |
98 // |-------------------------------------------------------| | |
99 // | rcx rdx r8 r9 rdi* rsi* | windows (* not a c_rarg) | |
100 // | rdi rsi rdx rcx r8 r9 | solaris/linux | |
101 // |-------------------------------------------------------| | |
102 // | j_rarg5 j_rarg0 j_rarg1 j_rarg2 j_rarg3 j_rarg4 | | |
103 // |-------------------------------------------------------| | |
104 | |
105 REGISTER_DECLARATION(Register, j_rarg0, c_rarg1); | |
106 REGISTER_DECLARATION(Register, j_rarg1, c_rarg2); | |
107 REGISTER_DECLARATION(Register, j_rarg2, c_rarg3); | |
108 // Windows runs out of register args here | |
109 #ifdef _WIN64 | |
110 REGISTER_DECLARATION(Register, j_rarg3, rdi); | |
111 REGISTER_DECLARATION(Register, j_rarg4, rsi); | |
112 #else | |
113 REGISTER_DECLARATION(Register, j_rarg3, c_rarg4); | |
114 REGISTER_DECLARATION(Register, j_rarg4, c_rarg5); | |
115 #endif /* _WIN64 */ | |
116 REGISTER_DECLARATION(Register, j_rarg5, c_rarg0); | |
117 | |
304 | 118 REGISTER_DECLARATION(XMMRegister, j_farg0, xmm0); |
119 REGISTER_DECLARATION(XMMRegister, j_farg1, xmm1); | |
120 REGISTER_DECLARATION(XMMRegister, j_farg2, xmm2); | |
121 REGISTER_DECLARATION(XMMRegister, j_farg3, xmm3); | |
122 REGISTER_DECLARATION(XMMRegister, j_farg4, xmm4); | |
123 REGISTER_DECLARATION(XMMRegister, j_farg5, xmm5); | |
124 REGISTER_DECLARATION(XMMRegister, j_farg6, xmm6); | |
125 REGISTER_DECLARATION(XMMRegister, j_farg7, xmm7); | |
0 | 126 |
127 REGISTER_DECLARATION(Register, rscratch1, r10); // volatile | |
128 REGISTER_DECLARATION(Register, rscratch2, r11); // volatile | |
129 | |
304 | 130 REGISTER_DECLARATION(Register, r12_heapbase, r12); // callee-saved |
0 | 131 REGISTER_DECLARATION(Register, r15_thread, r15); // callee-saved |
132 | |
304 | 133 #else |
134 // rscratch1 will apear in 32bit code that is dead but of course must compile | |
135 // Using noreg ensures if the dead code is incorrectly live and executed it | |
136 // will cause an assertion failure | |
137 #define rscratch1 noreg | |
2002 | 138 #define rscratch2 noreg |
304 | 139 |
0 | 140 #endif // _LP64 |
141 | |
1564 | 142 // JSR 292 fixed register usages: |
143 REGISTER_DECLARATION(Register, rbp_mh_SP_save, rbp); | |
144 | |
0 | 145 // Address is an abstraction used to represent a memory location |
146 // using any of the amd64 addressing modes with one object. | |
147 // | |
148 // Note: A register location is represented via a Register, not | |
149 // via an address for efficiency & simplicity reasons. | |
150 | |
151 class ArrayAddress; | |
152 | |
153 class Address VALUE_OBJ_CLASS_SPEC { | |
154 public: | |
155 enum ScaleFactor { | |
156 no_scale = -1, | |
157 times_1 = 0, | |
158 times_2 = 1, | |
159 times_4 = 2, | |
304 | 160 times_8 = 3, |
161 times_ptr = LP64_ONLY(times_8) NOT_LP64(times_4) | |
0 | 162 }; |
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163 static ScaleFactor times(int size) { |
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164 assert(size >= 1 && size <= 8 && is_power_of_2(size), "bad scale size"); |
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165 if (size == 8) return times_8; |
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166 if (size == 4) return times_4; |
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167 if (size == 2) return times_2; |
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168 return times_1; |
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169 } |
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170 static int scale_size(ScaleFactor scale) { |
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171 assert(scale != no_scale, ""); |
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172 assert(((1 << (int)times_1) == 1 && |
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173 (1 << (int)times_2) == 2 && |
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174 (1 << (int)times_4) == 4 && |
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175 (1 << (int)times_8) == 8), ""); |
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176 return (1 << (int)scale); |
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177 } |
0 | 178 |
179 private: | |
180 Register _base; | |
181 Register _index; | |
182 ScaleFactor _scale; | |
183 int _disp; | |
184 RelocationHolder _rspec; | |
185 | |
304 | 186 // Easily misused constructors make them private |
187 // %%% can we make these go away? | |
188 NOT_LP64(Address(address loc, RelocationHolder spec);) | |
189 Address(int disp, address loc, relocInfo::relocType rtype); | |
190 Address(int disp, address loc, RelocationHolder spec); | |
0 | 191 |
192 public: | |
304 | 193 |
194 int disp() { return _disp; } | |
0 | 195 // creation |
196 Address() | |
197 : _base(noreg), | |
198 _index(noreg), | |
199 _scale(no_scale), | |
200 _disp(0) { | |
201 } | |
202 | |
203 // No default displacement otherwise Register can be implicitly | |
204 // converted to 0(Register) which is quite a different animal. | |
205 | |
206 Address(Register base, int disp) | |
207 : _base(base), | |
208 _index(noreg), | |
209 _scale(no_scale), | |
210 _disp(disp) { | |
211 } | |
212 | |
213 Address(Register base, Register index, ScaleFactor scale, int disp = 0) | |
214 : _base (base), | |
215 _index(index), | |
216 _scale(scale), | |
217 _disp (disp) { | |
218 assert(!index->is_valid() == (scale == Address::no_scale), | |
219 "inconsistent address"); | |
220 } | |
221 | |
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222 Address(Register base, RegisterOrConstant index, ScaleFactor scale = times_1, int disp = 0) |
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223 : _base (base), |
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224 _index(index.register_or_noreg()), |
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225 _scale(scale), |
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226 _disp (disp + (index.constant_or_zero() * scale_size(scale))) { |
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227 if (!index.is_register()) scale = Address::no_scale; |
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228 assert(!_index->is_valid() == (scale == Address::no_scale), |
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229 "inconsistent address"); |
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230 } |
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231 |
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232 Address plus_disp(int disp) const { |
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233 Address a = (*this); |
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234 a._disp += disp; |
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235 return a; |
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236 } |
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237 Address plus_disp(RegisterOrConstant disp, ScaleFactor scale = times_1) const { |
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238 Address a = (*this); |
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239 a._disp += disp.constant_or_zero() * scale_size(scale); |
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240 if (disp.is_register()) { |
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241 assert(!a.index()->is_valid(), "competing indexes"); |
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242 a._index = disp.as_register(); |
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243 a._scale = scale; |
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244 } |
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245 return a; |
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246 } |
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247 bool is_same_address(Address a) const { |
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248 // disregard _rspec |
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249 return _base == a._base && _disp == a._disp && _index == a._index && _scale == a._scale; |
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250 } |
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251 |
0 | 252 // The following two overloads are used in connection with the |
253 // ByteSize type (see sizes.hpp). They simplify the use of | |
254 // ByteSize'd arguments in assembly code. Note that their equivalent | |
255 // for the optimized build are the member functions with int disp | |
256 // argument since ByteSize is mapped to an int type in that case. | |
257 // | |
258 // Note: DO NOT introduce similar overloaded functions for WordSize | |
259 // arguments as in the optimized mode, both ByteSize and WordSize | |
260 // are mapped to the same type and thus the compiler cannot make a | |
261 // distinction anymore (=> compiler errors). | |
262 | |
263 #ifdef ASSERT | |
264 Address(Register base, ByteSize disp) | |
265 : _base(base), | |
266 _index(noreg), | |
267 _scale(no_scale), | |
268 _disp(in_bytes(disp)) { | |
269 } | |
270 | |
271 Address(Register base, Register index, ScaleFactor scale, ByteSize disp) | |
272 : _base(base), | |
273 _index(index), | |
274 _scale(scale), | |
275 _disp(in_bytes(disp)) { | |
276 assert(!index->is_valid() == (scale == Address::no_scale), | |
277 "inconsistent address"); | |
278 } | |
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279 |
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280 Address(Register base, RegisterOrConstant index, ScaleFactor scale, ByteSize disp) |
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281 : _base (base), |
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282 _index(index.register_or_noreg()), |
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283 _scale(scale), |
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284 _disp (in_bytes(disp) + (index.constant_or_zero() * scale_size(scale))) { |
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285 if (!index.is_register()) scale = Address::no_scale; |
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286 assert(!_index->is_valid() == (scale == Address::no_scale), |
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287 "inconsistent address"); |
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288 } |
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289 |
0 | 290 #endif // ASSERT |
291 | |
292 // accessors | |
342
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293 bool uses(Register reg) const { return _base == reg || _index == reg; } |
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294 Register base() const { return _base; } |
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295 Register index() const { return _index; } |
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296 ScaleFactor scale() const { return _scale; } |
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297 int disp() const { return _disp; } |
0 | 298 |
299 // Convert the raw encoding form into the form expected by the constructor for | |
300 // Address. An index of 4 (rsp) corresponds to having no index, so convert | |
301 // that to noreg for the Address constructor. | |
624 | 302 static Address make_raw(int base, int index, int scale, int disp, bool disp_is_oop); |
0 | 303 |
304 static Address make_array(ArrayAddress); | |
305 | |
306 private: | |
307 bool base_needs_rex() const { | |
308 return _base != noreg && _base->encoding() >= 8; | |
309 } | |
310 | |
311 bool index_needs_rex() const { | |
312 return _index != noreg &&_index->encoding() >= 8; | |
313 } | |
314 | |
315 relocInfo::relocType reloc() const { return _rspec.type(); } | |
316 | |
317 friend class Assembler; | |
318 friend class MacroAssembler; | |
319 friend class LIR_Assembler; // base/index/scale/disp | |
320 }; | |
321 | |
322 // | |
323 // AddressLiteral has been split out from Address because operands of this type | |
324 // need to be treated specially on 32bit vs. 64bit platforms. By splitting it out | |
325 // the few instructions that need to deal with address literals are unique and the | |
326 // MacroAssembler does not have to implement every instruction in the Assembler | |
327 // in order to search for address literals that may need special handling depending | |
328 // on the instruction and the platform. As small step on the way to merging i486/amd64 | |
329 // directories. | |
330 // | |
331 class AddressLiteral VALUE_OBJ_CLASS_SPEC { | |
332 friend class ArrayAddress; | |
333 RelocationHolder _rspec; | |
334 // Typically we use AddressLiterals we want to use their rval | |
335 // However in some situations we want the lval (effect address) of the item. | |
336 // We provide a special factory for making those lvals. | |
337 bool _is_lval; | |
338 | |
339 // If the target is far we'll need to load the ea of this to | |
340 // a register to reach it. Otherwise if near we can do rip | |
341 // relative addressing. | |
342 | |
343 address _target; | |
344 | |
345 protected: | |
346 // creation | |
347 AddressLiteral() | |
348 : _is_lval(false), | |
349 _target(NULL) | |
350 {} | |
351 | |
352 public: | |
353 | |
354 | |
355 AddressLiteral(address target, relocInfo::relocType rtype); | |
356 | |
357 AddressLiteral(address target, RelocationHolder const& rspec) | |
358 : _rspec(rspec), | |
359 _is_lval(false), | |
360 _target(target) | |
361 {} | |
362 | |
363 AddressLiteral addr() { | |
364 AddressLiteral ret = *this; | |
365 ret._is_lval = true; | |
366 return ret; | |
367 } | |
368 | |
369 | |
370 private: | |
371 | |
372 address target() { return _target; } | |
373 bool is_lval() { return _is_lval; } | |
374 | |
375 relocInfo::relocType reloc() const { return _rspec.type(); } | |
376 const RelocationHolder& rspec() const { return _rspec; } | |
377 | |
378 friend class Assembler; | |
379 friend class MacroAssembler; | |
380 friend class Address; | |
381 friend class LIR_Assembler; | |
382 }; | |
383 | |
384 // Convience classes | |
385 class RuntimeAddress: public AddressLiteral { | |
386 | |
387 public: | |
388 | |
389 RuntimeAddress(address target) : AddressLiteral(target, relocInfo::runtime_call_type) {} | |
390 | |
391 }; | |
392 | |
393 class OopAddress: public AddressLiteral { | |
394 | |
395 public: | |
396 | |
397 OopAddress(address target) : AddressLiteral(target, relocInfo::oop_type){} | |
398 | |
399 }; | |
400 | |
401 class ExternalAddress: public AddressLiteral { | |
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402 private: |
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403 static relocInfo::relocType reloc_for_target(address target) { |
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404 // Sometimes ExternalAddress is used for values which aren't |
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405 // exactly addresses, like the card table base. |
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406 // external_word_type can't be used for values in the first page |
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407 // so just skip the reloc in that case. |
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408 return external_word_Relocation::can_be_relocated(target) ? relocInfo::external_word_type : relocInfo::none; |
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409 } |
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410 |
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411 public: |
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412 |
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413 ExternalAddress(address target) : AddressLiteral(target, reloc_for_target(target)) {} |
0 | 414 |
415 }; | |
416 | |
417 class InternalAddress: public AddressLiteral { | |
418 | |
419 public: | |
420 | |
421 InternalAddress(address target) : AddressLiteral(target, relocInfo::internal_word_type) {} | |
422 | |
423 }; | |
424 | |
425 // x86 can do array addressing as a single operation since disp can be an absolute | |
426 // address amd64 can't. We create a class that expresses the concept but does extra | |
427 // magic on amd64 to get the final result | |
428 | |
429 class ArrayAddress VALUE_OBJ_CLASS_SPEC { | |
430 private: | |
431 | |
432 AddressLiteral _base; | |
433 Address _index; | |
434 | |
435 public: | |
436 | |
437 ArrayAddress() {}; | |
438 ArrayAddress(AddressLiteral base, Address index): _base(base), _index(index) {}; | |
439 AddressLiteral base() { return _base; } | |
440 Address index() { return _index; } | |
441 | |
442 }; | |
443 | |
304 | 444 const int FPUStateSizeInWords = NOT_LP64(27) LP64_ONLY( 512 / wordSize); |
0 | 445 |
446 // The Intel x86/Amd64 Assembler: Pure assembler doing NO optimizations on the instruction | |
447 // level (e.g. mov rax, 0 is not translated into xor rax, rax!); i.e., what you write | |
448 // is what you get. The Assembler is generating code into a CodeBuffer. | |
449 | |
450 class Assembler : public AbstractAssembler { | |
451 friend class AbstractAssembler; // for the non-virtual hack | |
452 friend class LIR_Assembler; // as_Address() | |
304 | 453 friend class StubGenerator; |
0 | 454 |
455 public: | |
456 enum Condition { // The x86 condition codes used for conditional jumps/moves. | |
457 zero = 0x4, | |
458 notZero = 0x5, | |
459 equal = 0x4, | |
460 notEqual = 0x5, | |
461 less = 0xc, | |
462 lessEqual = 0xe, | |
463 greater = 0xf, | |
464 greaterEqual = 0xd, | |
465 below = 0x2, | |
466 belowEqual = 0x6, | |
467 above = 0x7, | |
468 aboveEqual = 0x3, | |
469 overflow = 0x0, | |
470 noOverflow = 0x1, | |
471 carrySet = 0x2, | |
472 carryClear = 0x3, | |
473 negative = 0x8, | |
474 positive = 0x9, | |
475 parity = 0xa, | |
476 noParity = 0xb | |
477 }; | |
478 | |
479 enum Prefix { | |
480 // segment overrides | |
481 CS_segment = 0x2e, | |
482 SS_segment = 0x36, | |
483 DS_segment = 0x3e, | |
484 ES_segment = 0x26, | |
485 FS_segment = 0x64, | |
486 GS_segment = 0x65, | |
487 | |
488 REX = 0x40, | |
489 | |
490 REX_B = 0x41, | |
491 REX_X = 0x42, | |
492 REX_XB = 0x43, | |
493 REX_R = 0x44, | |
494 REX_RB = 0x45, | |
495 REX_RX = 0x46, | |
496 REX_RXB = 0x47, | |
497 | |
498 REX_W = 0x48, | |
499 | |
500 REX_WB = 0x49, | |
501 REX_WX = 0x4A, | |
502 REX_WXB = 0x4B, | |
503 REX_WR = 0x4C, | |
504 REX_WRB = 0x4D, | |
505 REX_WRX = 0x4E, | |
4759 | 506 REX_WRXB = 0x4F, |
507 | |
508 VEX_3bytes = 0xC4, | |
509 VEX_2bytes = 0xC5 | |
510 }; | |
511 | |
512 enum VexPrefix { | |
513 VEX_B = 0x20, | |
514 VEX_X = 0x40, | |
515 VEX_R = 0x80, | |
516 VEX_W = 0x80 | |
517 }; | |
518 | |
519 enum VexSimdPrefix { | |
520 VEX_SIMD_NONE = 0x0, | |
521 VEX_SIMD_66 = 0x1, | |
522 VEX_SIMD_F3 = 0x2, | |
523 VEX_SIMD_F2 = 0x3 | |
524 }; | |
525 | |
526 enum VexOpcode { | |
527 VEX_OPCODE_NONE = 0x0, | |
528 VEX_OPCODE_0F = 0x1, | |
529 VEX_OPCODE_0F_38 = 0x2, | |
530 VEX_OPCODE_0F_3A = 0x3 | |
0 | 531 }; |
532 | |
533 enum WhichOperand { | |
534 // input to locate_operand, and format code for relocations | |
304 | 535 imm_operand = 0, // embedded 32-bit|64-bit immediate operand |
0 | 536 disp32_operand = 1, // embedded 32-bit displacement or address |
537 call32_operand = 2, // embedded 32-bit self-relative displacement | |
304 | 538 #ifndef _LP64 |
0 | 539 _WhichOperand_limit = 3 |
304 | 540 #else |
541 narrow_oop_operand = 3, // embedded 32-bit immediate narrow oop | |
542 _WhichOperand_limit = 4 | |
543 #endif | |
0 | 544 }; |
545 | |
304 | 546 |
547 | |
548 // NOTE: The general philopsophy of the declarations here is that 64bit versions | |
549 // of instructions are freely declared without the need for wrapping them an ifdef. | |
550 // (Some dangerous instructions are ifdef's out of inappropriate jvm's.) | |
551 // In the .cpp file the implementations are wrapped so that they are dropped out | |
552 // of the resulting jvm. This is done mostly to keep the footprint of KERNEL | |
553 // to the size it was prior to merging up the 32bit and 64bit assemblers. | |
554 // | |
555 // This does mean you'll get a linker/runtime error if you use a 64bit only instruction | |
556 // in a 32bit vm. This is somewhat unfortunate but keeps the ifdef noise down. | |
557 | |
558 private: | |
559 | |
560 | |
561 // 64bit prefixes | |
562 int prefix_and_encode(int reg_enc, bool byteinst = false); | |
563 int prefixq_and_encode(int reg_enc); | |
564 | |
565 int prefix_and_encode(int dst_enc, int src_enc, bool byteinst = false); | |
566 int prefixq_and_encode(int dst_enc, int src_enc); | |
567 | |
568 void prefix(Register reg); | |
569 void prefix(Address adr); | |
570 void prefixq(Address adr); | |
571 | |
572 void prefix(Address adr, Register reg, bool byteinst = false); | |
4759 | 573 void prefix(Address adr, XMMRegister reg); |
304 | 574 void prefixq(Address adr, Register reg); |
4759 | 575 void prefixq(Address adr, XMMRegister reg); |
304 | 576 |
577 void prefetch_prefix(Address src); | |
578 | |
4759 | 579 void rex_prefix(Address adr, XMMRegister xreg, |
580 VexSimdPrefix pre, VexOpcode opc, bool rex_w); | |
581 int rex_prefix_and_encode(int dst_enc, int src_enc, | |
582 VexSimdPrefix pre, VexOpcode opc, bool rex_w); | |
583 | |
584 void vex_prefix(bool vex_r, bool vex_b, bool vex_x, bool vex_w, | |
585 int nds_enc, VexSimdPrefix pre, VexOpcode opc, | |
586 bool vector256); | |
587 | |
588 void vex_prefix(Address adr, int nds_enc, int xreg_enc, | |
589 VexSimdPrefix pre, VexOpcode opc, | |
590 bool vex_w, bool vector256); | |
591 | |
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592 void vex_prefix(XMMRegister dst, XMMRegister nds, Address src, |
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593 VexSimdPrefix pre, bool vector256 = false) { |
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594 vex_prefix(src, nds->encoding(), dst->encoding(), |
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595 pre, VEX_OPCODE_0F, false, vector256); |
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596 } |
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597 |
4759 | 598 int vex_prefix_and_encode(int dst_enc, int nds_enc, int src_enc, |
599 VexSimdPrefix pre, VexOpcode opc, | |
600 bool vex_w, bool vector256); | |
601 | |
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602 int vex_prefix_and_encode(XMMRegister dst, XMMRegister nds, XMMRegister src, |
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603 VexSimdPrefix pre, bool vector256 = false) { |
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604 return vex_prefix_and_encode(dst->encoding(), nds->encoding(), src->encoding(), |
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605 pre, VEX_OPCODE_0F, false, vector256); |
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606 } |
4759 | 607 |
608 void simd_prefix(XMMRegister xreg, XMMRegister nds, Address adr, | |
609 VexSimdPrefix pre, VexOpcode opc = VEX_OPCODE_0F, | |
610 bool rex_w = false, bool vector256 = false); | |
611 | |
612 void simd_prefix(XMMRegister dst, Address src, | |
613 VexSimdPrefix pre, VexOpcode opc = VEX_OPCODE_0F) { | |
614 simd_prefix(dst, xnoreg, src, pre, opc); | |
615 } | |
616 void simd_prefix(Address dst, XMMRegister src, VexSimdPrefix pre) { | |
617 simd_prefix(src, dst, pre); | |
618 } | |
619 void simd_prefix_q(XMMRegister dst, XMMRegister nds, Address src, | |
620 VexSimdPrefix pre) { | |
621 bool rex_w = true; | |
622 simd_prefix(dst, nds, src, pre, VEX_OPCODE_0F, rex_w); | |
623 } | |
624 | |
625 | |
626 int simd_prefix_and_encode(XMMRegister dst, XMMRegister nds, XMMRegister src, | |
627 VexSimdPrefix pre, VexOpcode opc = VEX_OPCODE_0F, | |
628 bool rex_w = false, bool vector256 = false); | |
629 | |
630 int simd_prefix_and_encode(XMMRegister dst, XMMRegister src, | |
631 VexSimdPrefix pre, VexOpcode opc = VEX_OPCODE_0F) { | |
632 return simd_prefix_and_encode(dst, xnoreg, src, pre, opc); | |
633 } | |
634 | |
635 // Move/convert 32-bit integer value. | |
636 int simd_prefix_and_encode(XMMRegister dst, XMMRegister nds, Register src, | |
637 VexSimdPrefix pre) { | |
638 // It is OK to cast from Register to XMMRegister to pass argument here | |
639 // since only encoding is used in simd_prefix_and_encode() and number of | |
640 // Gen and Xmm registers are the same. | |
641 return simd_prefix_and_encode(dst, nds, as_XMMRegister(src->encoding()), pre); | |
642 } | |
643 int simd_prefix_and_encode(XMMRegister dst, Register src, VexSimdPrefix pre) { | |
644 return simd_prefix_and_encode(dst, xnoreg, src, pre); | |
645 } | |
646 int simd_prefix_and_encode(Register dst, XMMRegister src, | |
647 VexSimdPrefix pre, VexOpcode opc = VEX_OPCODE_0F) { | |
648 return simd_prefix_and_encode(as_XMMRegister(dst->encoding()), xnoreg, src, pre, opc); | |
649 } | |
650 | |
651 // Move/convert 64-bit integer value. | |
652 int simd_prefix_and_encode_q(XMMRegister dst, XMMRegister nds, Register src, | |
653 VexSimdPrefix pre) { | |
654 bool rex_w = true; | |
655 return simd_prefix_and_encode(dst, nds, as_XMMRegister(src->encoding()), pre, VEX_OPCODE_0F, rex_w); | |
656 } | |
657 int simd_prefix_and_encode_q(XMMRegister dst, Register src, VexSimdPrefix pre) { | |
658 return simd_prefix_and_encode_q(dst, xnoreg, src, pre); | |
659 } | |
660 int simd_prefix_and_encode_q(Register dst, XMMRegister src, | |
661 VexSimdPrefix pre, VexOpcode opc = VEX_OPCODE_0F) { | |
662 bool rex_w = true; | |
663 return simd_prefix_and_encode(as_XMMRegister(dst->encoding()), xnoreg, src, pre, opc, rex_w); | |
664 } | |
665 | |
304 | 666 // Helper functions for groups of instructions |
667 void emit_arith_b(int op1, int op2, Register dst, int imm8); | |
668 | |
669 void emit_arith(int op1, int op2, Register dst, int32_t imm32); | |
670 // only 32bit?? | |
671 void emit_arith(int op1, int op2, Register dst, jobject obj); | |
672 void emit_arith(int op1, int op2, Register dst, Register src); | |
673 | |
674 void emit_operand(Register reg, | |
675 Register base, Register index, Address::ScaleFactor scale, | |
676 int disp, | |
677 RelocationHolder const& rspec, | |
678 int rip_relative_correction = 0); | |
679 | |
680 void emit_operand(Register reg, Address adr, int rip_relative_correction = 0); | |
681 | |
682 // operands that only take the original 32bit registers | |
683 void emit_operand32(Register reg, Address adr); | |
684 | |
685 void emit_operand(XMMRegister reg, | |
686 Register base, Register index, Address::ScaleFactor scale, | |
687 int disp, | |
688 RelocationHolder const& rspec); | |
689 | |
690 void emit_operand(XMMRegister reg, Address adr); | |
691 | |
692 void emit_operand(MMXRegister reg, Address adr); | |
693 | |
694 // workaround gcc (3.2.1-7) bug | |
695 void emit_operand(Address adr, MMXRegister reg); | |
696 | |
697 | |
698 // Immediate-to-memory forms | |
699 void emit_arith_operand(int op1, Register rm, Address adr, int32_t imm32); | |
700 | |
701 void emit_farith(int b1, int b2, int i); | |
702 | |
703 | |
704 protected: | |
705 #ifdef ASSERT | |
706 void check_relocation(RelocationHolder const& rspec, int format); | |
707 #endif | |
708 | |
709 inline void emit_long64(jlong x); | |
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 | |
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726 void mov_literal32(Register dst, int32_t imm32, RelocationHolder const& rspec); // 32BIT ONLY |
304 | 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 | |
642
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733 |
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734 void cmp_narrow_oop(Register src1, int32_t imm32, RelocationHolder const& rspec); |
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735 void cmp_narrow_oop(Address src1, int32_t imm32, RelocationHolder const& rspec); |
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736 |
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737 void mov_narrow_oop(Register dst, int32_t imm32, RelocationHolder const& rspec); |
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738 void mov_narrow_oop(Address dst, int32_t imm32, RelocationHolder const& rspec); |
304 | 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 | |
0 | 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 | |
304 | 806 // Utilities |
2404
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807 static bool is_polling_page_far() NOT_LP64({ return false;}); |
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808 |
304 | 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_set(); | |
836 void repne_scan(); | |
837 #ifdef _LP64 | |
838 void repne_scanl(); | |
839 #endif | |
840 | |
841 // Vanilla instructions in lexical order | |
842 | |
2100
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843 void adcl(Address dst, int32_t imm32); |
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844 void adcl(Address dst, Register src); |
304 | 845 void adcl(Register dst, int32_t imm32); |
0 | 846 void adcl(Register dst, Address src); |
847 void adcl(Register dst, Register src); | |
848 | |
304 | 849 void adcq(Register dst, int32_t imm32); |
850 void adcq(Register dst, Address src); | |
851 void adcq(Register dst, Register src); | |
852 | |
853 void addl(Address dst, int32_t imm32); | |
0 | 854 void addl(Address dst, Register src); |
304 | 855 void addl(Register dst, int32_t imm32); |
0 | 856 void addl(Register dst, Address src); |
857 void addl(Register dst, Register src); | |
858 | |
304 | 859 void addq(Address dst, int32_t imm32); |
860 void addq(Address dst, Register src); | |
861 void addq(Register dst, int32_t imm32); | |
862 void addq(Register dst, Address src); | |
863 void addq(Register dst, Register src); | |
864 | |
0 | 865 void addr_nop_4(); |
866 void addr_nop_5(); | |
867 void addr_nop_7(); | |
868 void addr_nop_8(); | |
869 | |
304 | 870 // Add Scalar Double-Precision Floating-Point Values |
871 void addsd(XMMRegister dst, Address src); | |
872 void addsd(XMMRegister dst, XMMRegister src); | |
873 | |
874 // Add Scalar Single-Precision Floating-Point Values | |
875 void addss(XMMRegister dst, Address src); | |
876 void addss(XMMRegister dst, XMMRegister src); | |
877 | |
4759 | 878 void andl(Address dst, int32_t imm32); |
304 | 879 void andl(Register dst, int32_t imm32); |
880 void andl(Register dst, Address src); | |
881 void andl(Register dst, Register src); | |
882 | |
3783 | 883 void andq(Address dst, int32_t imm32); |
304 | 884 void andq(Register dst, int32_t imm32); |
885 void andq(Register dst, Address src); | |
886 void andq(Register dst, Register src); | |
887 | |
888 // Bitwise Logical AND of Packed Double-Precision Floating-Point Values | |
889 void andpd(XMMRegister dst, XMMRegister src); | |
890 | |
4759 | 891 // Bitwise Logical AND of Packed Single-Precision Floating-Point Values |
892 void andps(XMMRegister dst, XMMRegister src); | |
893 | |
775
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894 void bsfl(Register dst, Register src); |
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895 void bsrl(Register dst, Register src); |
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896 |
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897 #ifdef _LP64 |
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898 void bsfq(Register dst, Register src); |
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899 void bsrq(Register dst, Register src); |
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900 #endif |
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901 |
304 | 902 void bswapl(Register reg); |
903 | |
904 void bswapq(Register reg); | |
905 | |
0 | 906 void call(Label& L, relocInfo::relocType rtype); |
907 void call(Register reg); // push pc; pc <- reg | |
908 void call(Address adr); // push pc; pc <- adr | |
909 | |
304 | 910 void cdql(); |
911 | |
912 void cdqq(); | |
913 | |
914 void cld() { emit_byte(0xfc); } | |
915 | |
916 void clflush(Address adr); | |
917 | |
918 void cmovl(Condition cc, Register dst, Register src); | |
919 void cmovl(Condition cc, Register dst, Address src); | |
920 | |
921 void cmovq(Condition cc, Register dst, Register src); | |
922 void cmovq(Condition cc, Register dst, Address src); | |
923 | |
924 | |
925 void cmpb(Address dst, int imm8); | |
926 | |
927 void cmpl(Address dst, int32_t imm32); | |
928 | |
929 void cmpl(Register dst, int32_t imm32); | |
930 void cmpl(Register dst, Register src); | |
931 void cmpl(Register dst, Address src); | |
932 | |
933 void cmpq(Address dst, int32_t imm32); | |
934 void cmpq(Address dst, Register src); | |
935 | |
936 void cmpq(Register dst, int32_t imm32); | |
937 void cmpq(Register dst, Register src); | |
938 void cmpq(Register dst, Address src); | |
939 | |
940 // these are dummies used to catch attempting to convert NULL to Register | |
941 void cmpl(Register dst, void* junk); // dummy | |
942 void cmpq(Register dst, void* junk); // dummy | |
943 | |
944 void cmpw(Address dst, int imm16); | |
945 | |
946 void cmpxchg8 (Address adr); | |
947 | |
948 void cmpxchgl(Register reg, Address adr); | |
949 | |
950 void cmpxchgq(Register reg, Address adr); | |
951 | |
952 // Ordered Compare Scalar Double-Precision Floating-Point Values and set EFLAGS | |
953 void comisd(XMMRegister dst, Address src); | |
4759 | 954 void comisd(XMMRegister dst, XMMRegister src); |
304 | 955 |
956 // Ordered Compare Scalar Single-Precision Floating-Point Values and set EFLAGS | |
957 void comiss(XMMRegister dst, Address src); | |
4759 | 958 void comiss(XMMRegister dst, XMMRegister src); |
304 | 959 |
960 // Identify processor type and features | |
961 void cpuid() { | |
962 emit_byte(0x0F); | |
963 emit_byte(0xA2); | |
964 } | |
965 | |
966 // Convert Scalar Double-Precision Floating-Point Value to Scalar Single-Precision Floating-Point Value | |
967 void cvtsd2ss(XMMRegister dst, XMMRegister src); | |
4759 | 968 void cvtsd2ss(XMMRegister dst, Address src); |
304 | 969 |
970 // Convert Doubleword Integer to Scalar Double-Precision Floating-Point Value | |
971 void cvtsi2sdl(XMMRegister dst, Register src); | |
4759 | 972 void cvtsi2sdl(XMMRegister dst, Address src); |
304 | 973 void cvtsi2sdq(XMMRegister dst, Register src); |
4759 | 974 void cvtsi2sdq(XMMRegister dst, Address src); |
304 | 975 |
976 // Convert Doubleword Integer to Scalar Single-Precision Floating-Point Value | |
977 void cvtsi2ssl(XMMRegister dst, Register src); | |
4759 | 978 void cvtsi2ssl(XMMRegister dst, Address src); |
304 | 979 void cvtsi2ssq(XMMRegister dst, Register src); |
4759 | 980 void cvtsi2ssq(XMMRegister dst, Address src); |
304 | 981 |
982 // Convert Packed Signed Doubleword Integers to Packed Double-Precision Floating-Point Value | |
983 void cvtdq2pd(XMMRegister dst, XMMRegister src); | |
984 | |
985 // Convert Packed Signed Doubleword Integers to Packed Single-Precision Floating-Point Value | |
986 void cvtdq2ps(XMMRegister dst, XMMRegister src); | |
987 | |
988 // Convert Scalar Single-Precision Floating-Point Value to Scalar Double-Precision Floating-Point Value | |
989 void cvtss2sd(XMMRegister dst, XMMRegister src); | |
4759 | 990 void cvtss2sd(XMMRegister dst, Address src); |
304 | 991 |
992 // Convert with Truncation Scalar Double-Precision Floating-Point Value to Doubleword Integer | |
993 void cvttsd2sil(Register dst, Address src); | |
994 void cvttsd2sil(Register dst, XMMRegister src); | |
995 void cvttsd2siq(Register dst, XMMRegister src); | |
996 | |
997 // Convert with Truncation Scalar Single-Precision Floating-Point Value to Doubleword Integer | |
998 void cvttss2sil(Register dst, XMMRegister src); | |
999 void cvttss2siq(Register dst, XMMRegister src); | |
1000 | |
1001 // Divide Scalar Double-Precision Floating-Point Values | |
1002 void divsd(XMMRegister dst, Address src); | |
1003 void divsd(XMMRegister dst, XMMRegister src); | |
1004 | |
1005 // Divide Scalar Single-Precision Floating-Point Values | |
1006 void divss(XMMRegister dst, Address src); | |
1007 void divss(XMMRegister dst, XMMRegister src); | |
1008 | |
1009 void emms(); | |
1010 | |
1011 void fabs(); | |
1012 | |
1013 void fadd(int i); | |
1014 | |
1015 void fadd_d(Address src); | |
1016 void fadd_s(Address src); | |
1017 | |
1018 // "Alternate" versions of x87 instructions place result down in FPU | |
1019 // stack instead of on TOS | |
1020 | |
1021 void fadda(int i); // "alternate" fadd | |
1022 void faddp(int i = 1); | |
1023 | |
1024 void fchs(); | |
1025 | |
1026 void fcom(int i); | |
1027 | |
1028 void fcomp(int i = 1); | |
1029 void fcomp_d(Address src); | |
1030 void fcomp_s(Address src); | |
1031 | |
1032 void fcompp(); | |
1033 | |
1034 void fcos(); | |
1035 | |
1036 void fdecstp(); | |
1037 | |
1038 void fdiv(int i); | |
1039 void fdiv_d(Address src); | |
1040 void fdivr_s(Address src); | |
1041 void fdiva(int i); // "alternate" fdiv | |
1042 void fdivp(int i = 1); | |
1043 | |
1044 void fdivr(int i); | |
1045 void fdivr_d(Address src); | |
1046 void fdiv_s(Address src); | |
1047 | |
1048 void fdivra(int i); // "alternate" reversed fdiv | |
1049 | |
1050 void fdivrp(int i = 1); | |
1051 | |
1052 void ffree(int i = 0); | |
1053 | |
1054 void fild_d(Address adr); | |
1055 void fild_s(Address adr); | |
1056 | |
1057 void fincstp(); | |
1058 | |
1059 void finit(); | |
1060 | |
1061 void fist_s (Address adr); | |
1062 void fistp_d(Address adr); | |
1063 void fistp_s(Address adr); | |
1064 | |
1065 void fld1(); | |
1066 | |
1067 void fld_d(Address adr); | |
1068 void fld_s(Address adr); | |
1069 void fld_s(int index); | |
1070 void fld_x(Address adr); // extended-precision (80-bit) format | |
1071 | |
1072 void fldcw(Address src); | |
1073 | |
1074 void fldenv(Address src); | |
1075 | |
1076 void fldlg2(); | |
1077 | |
1078 void fldln2(); | |
1079 | |
1080 void fldz(); | |
1081 | |
1082 void flog(); | |
1083 void flog10(); | |
1084 | |
1085 void fmul(int i); | |
1086 | |
1087 void fmul_d(Address src); | |
1088 void fmul_s(Address src); | |
1089 | |
1090 void fmula(int i); // "alternate" fmul | |
1091 | |
1092 void fmulp(int i = 1); | |
1093 | |
1094 void fnsave(Address dst); | |
1095 | |
1096 void fnstcw(Address src); | |
1097 | |
1098 void fnstsw_ax(); | |
1099 | |
1100 void fprem(); | |
1101 void fprem1(); | |
1102 | |
1103 void frstor(Address src); | |
1104 | |
1105 void fsin(); | |
1106 | |
1107 void fsqrt(); | |
1108 | |
1109 void fst_d(Address adr); | |
1110 void fst_s(Address adr); | |
1111 | |
1112 void fstp_d(Address adr); | |
1113 void fstp_d(int index); | |
1114 void fstp_s(Address adr); | |
1115 void fstp_x(Address adr); // extended-precision (80-bit) format | |
1116 | |
1117 void fsub(int i); | |
1118 void fsub_d(Address src); | |
1119 void fsub_s(Address src); | |
1120 | |
1121 void fsuba(int i); // "alternate" fsub | |
1122 | |
1123 void fsubp(int i = 1); | |
1124 | |
1125 void fsubr(int i); | |
1126 void fsubr_d(Address src); | |
1127 void fsubr_s(Address src); | |
1128 | |
1129 void fsubra(int i); // "alternate" reversed fsub | |
1130 | |
1131 void fsubrp(int i = 1); | |
1132 | |
1133 void ftan(); | |
1134 | |
1135 void ftst(); | |
1136 | |
1137 void fucomi(int i = 1); | |
1138 void fucomip(int i = 1); | |
1139 | |
1140 void fwait(); | |
1141 | |
1142 void fxch(int i = 1); | |
1143 | |
1144 void fxrstor(Address src); | |
1145 | |
1146 void fxsave(Address dst); | |
1147 | |
1148 void fyl2x(); | |
1149 | |
1150 void hlt(); | |
1151 | |
1152 void idivl(Register src); | |
1920 | 1153 void divl(Register src); // Unsigned division |
304 | 1154 |
1155 void idivq(Register src); | |
1156 | |
1157 void imull(Register dst, Register src); | |
1158 void imull(Register dst, Register src, int value); | |
1159 | |
1160 void imulq(Register dst, Register src); | |
1161 void imulq(Register dst, Register src, int value); | |
1162 | |
0 | 1163 |
1164 // jcc is the generic conditional branch generator to run- | |
1165 // time routines, jcc is used for branches to labels. jcc | |
1166 // takes a branch opcode (cc) and a label (L) and generates | |
1167 // either a backward branch or a forward branch and links it | |
1168 // to the label fixup chain. Usage: | |
1169 // | |
1170 // Label L; // unbound label | |
1171 // jcc(cc, L); // forward branch to unbound label | |
1172 // bind(L); // bind label to the current pc | |
1173 // jcc(cc, L); // backward branch to bound label | |
1174 // bind(L); // illegal: a label may be bound only once | |
1175 // | |
1176 // Note: The same Label can be used for forward and backward branches | |
1177 // but it may be bound only once. | |
1178 | |
3851 | 1179 void jcc(Condition cc, Label& L, bool maybe_short = true); |
0 | 1180 |
1181 // Conditional jump to a 8-bit offset to L. | |
1182 // WARNING: be very careful using this for forward jumps. If the label is | |
1183 // not bound within an 8-bit offset of this instruction, a run-time error | |
1184 // will occur. | |
1185 void jccb(Condition cc, Label& L); | |
1186 | |
304 | 1187 void jmp(Address entry); // pc <- entry |
1188 | |
1189 // Label operations & relative jumps (PPUM Appendix D) | |
3851 | 1190 void jmp(Label& L, bool maybe_short = true); // unconditional jump to L |
304 | 1191 |
1192 void jmp(Register entry); // pc <- entry | |
1193 | |
1194 // Unconditional 8-bit offset jump to L. | |
1195 // WARNING: be very careful using this for forward jumps. If the label is | |
1196 // not bound within an 8-bit offset of this instruction, a run-time error | |
1197 // will occur. | |
1198 void jmpb(Label& L); | |
1199 | |
1200 void ldmxcsr( Address src ); | |
1201 | |
1202 void leal(Register dst, Address src); | |
1203 | |
1204 void leaq(Register dst, Address src); | |
1205 | |
1206 void lfence() { | |
1207 emit_byte(0x0F); | |
1208 emit_byte(0xAE); | |
1209 emit_byte(0xE8); | |
1210 } | |
1211 | |
1212 void lock(); | |
1213 | |
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1214 void lzcntl(Register dst, Register src); |
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1215 |
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1216 #ifdef _LP64 |
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1217 void lzcntq(Register dst, Register src); |
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1218 #endif |
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1219 |
304 | 1220 enum Membar_mask_bits { |
1221 StoreStore = 1 << 3, | |
1222 LoadStore = 1 << 2, | |
1223 StoreLoad = 1 << 1, | |
1224 LoadLoad = 1 << 0 | |
1225 }; | |
1226 | |
671
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1227 // Serializes memory and blows flags |
304 | 1228 void membar(Membar_mask_bits order_constraint) { |
671
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1229 if (os::is_MP()) { |
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1230 // We only have to handle StoreLoad |
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1231 if (order_constraint & StoreLoad) { |
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1232 // All usable chips support "locked" instructions which suffice |
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1233 // as barriers, and are much faster than the alternative of |
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1234 // using cpuid instruction. We use here a locked add [esp],0. |
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1235 // This is conveniently otherwise a no-op except for blowing |
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1236 // flags. |
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1237 // Any change to this code may need to revisit other places in |
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1238 // the code where this idiom is used, in particular the |
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1239 // orderAccess code. |
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1240 lock(); |
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1241 addl(Address(rsp, 0), 0);// Assert the lock# signal here |
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1242 } |
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1243 } |
304 | 1244 } |
1245 | |
1246 void mfence(); | |
1247 | |
1248 // Moves | |
1249 | |
1250 void mov64(Register dst, int64_t imm64); | |
1251 | |
1252 void movb(Address dst, Register src); | |
1253 void movb(Address dst, int imm8); | |
1254 void movb(Register dst, Address src); | |
1255 | |
1256 void movdl(XMMRegister dst, Register src); | |
1257 void movdl(Register dst, XMMRegister src); | |
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1258 void movdl(XMMRegister dst, Address src); |
304 | 1259 |
1260 // Move Double Quadword | |
1261 void movdq(XMMRegister dst, Register src); | |
1262 void movdq(Register dst, XMMRegister src); | |
1263 | |
1264 // Move Aligned Double Quadword | |
1265 void movdqa(XMMRegister dst, XMMRegister src); | |
1266 | |
405 | 1267 // Move Unaligned Double Quadword |
1268 void movdqu(Address dst, XMMRegister src); | |
1269 void movdqu(XMMRegister dst, Address src); | |
1270 void movdqu(XMMRegister dst, XMMRegister src); | |
1271 | |
304 | 1272 void movl(Register dst, int32_t imm32); |
1273 void movl(Address dst, int32_t imm32); | |
1274 void movl(Register dst, Register src); | |
1275 void movl(Register dst, Address src); | |
1276 void movl(Address dst, Register src); | |
1277 | |
1278 // These dummies prevent using movl from converting a zero (like NULL) into Register | |
1279 // by giving the compiler two choices it can't resolve | |
1280 | |
1281 void movl(Address dst, void* junk); | |
1282 void movl(Register dst, void* junk); | |
1283 | |
1284 #ifdef _LP64 | |
1285 void movq(Register dst, Register src); | |
1286 void movq(Register dst, Address src); | |
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1287 void movq(Address dst, Register src); |
304 | 1288 #endif |
1289 | |
1290 void movq(Address dst, MMXRegister src ); | |
1291 void movq(MMXRegister dst, Address src ); | |
1292 | |
1293 #ifdef _LP64 | |
1294 // These dummies prevent using movq from converting a zero (like NULL) into Register | |
1295 // by giving the compiler two choices it can't resolve | |
1296 | |
1297 void movq(Address dst, void* dummy); | |
1298 void movq(Register dst, void* dummy); | |
1299 #endif | |
1300 | |
1301 // Move Quadword | |
1302 void movq(Address dst, XMMRegister src); | |
1303 void movq(XMMRegister dst, Address src); | |
1304 | |
1305 void movsbl(Register dst, Address src); | |
1306 void movsbl(Register dst, Register src); | |
1307 | |
1308 #ifdef _LP64 | |
624 | 1309 void movsbq(Register dst, Address src); |
1310 void movsbq(Register dst, Register src); | |
1311 | |
304 | 1312 // Move signed 32bit immediate to 64bit extending sign |
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1313 void movslq(Address dst, int32_t imm64); |
304 | 1314 void movslq(Register dst, int32_t imm64); |
1315 | |
1316 void movslq(Register dst, Address src); | |
1317 void movslq(Register dst, Register src); | |
1318 void movslq(Register dst, void* src); // Dummy declaration to cause NULL to be ambiguous | |
1319 #endif | |
1320 | |
1321 void movswl(Register dst, Address src); | |
1322 void movswl(Register dst, Register src); | |
1323 | |
624 | 1324 #ifdef _LP64 |
1325 void movswq(Register dst, Address src); | |
1326 void movswq(Register dst, Register src); | |
1327 #endif | |
1328 | |
304 | 1329 void movw(Address dst, int imm16); |
1330 void movw(Register dst, Address src); | |
1331 void movw(Address dst, Register src); | |
1332 | |
1333 void movzbl(Register dst, Address src); | |
1334 void movzbl(Register dst, Register src); | |
1335 | |
624 | 1336 #ifdef _LP64 |
1337 void movzbq(Register dst, Address src); | |
1338 void movzbq(Register dst, Register src); | |
1339 #endif | |
1340 | |
304 | 1341 void movzwl(Register dst, Address src); |
1342 void movzwl(Register dst, Register src); | |
1343 | |
624 | 1344 #ifdef _LP64 |
1345 void movzwq(Register dst, Address src); | |
1346 void movzwq(Register dst, Register src); | |
1347 #endif | |
1348 | |
304 | 1349 void mull(Address src); |
1350 void mull(Register src); | |
1351 | |
1352 // Multiply Scalar Double-Precision Floating-Point Values | |
1353 void mulsd(XMMRegister dst, Address src); | |
1354 void mulsd(XMMRegister dst, XMMRegister src); | |
1355 | |
1356 // Multiply Scalar Single-Precision Floating-Point Values | |
1357 void mulss(XMMRegister dst, Address src); | |
1358 void mulss(XMMRegister dst, XMMRegister src); | |
1359 | |
1360 void negl(Register dst); | |
1361 | |
1362 #ifdef _LP64 | |
1363 void negq(Register dst); | |
1364 #endif | |
1365 | |
1366 void nop(int i = 1); | |
1367 | |
1368 void notl(Register dst); | |
1369 | |
1370 #ifdef _LP64 | |
1371 void notq(Register dst); | |
1372 #endif | |
1373 | |
1374 void orl(Address dst, int32_t imm32); | |
1375 void orl(Register dst, int32_t imm32); | |
1376 void orl(Register dst, Address src); | |
1377 void orl(Register dst, Register src); | |
1378 | |
1379 void orq(Address dst, int32_t imm32); | |
1380 void orq(Register dst, int32_t imm32); | |
1381 void orq(Register dst, Address src); | |
1382 void orq(Register dst, Register src); | |
1383 | |
4759 | 1384 // Pack with unsigned saturation |
1385 void packuswb(XMMRegister dst, XMMRegister src); | |
1386 void packuswb(XMMRegister dst, Address src); | |
1387 | |
681 | 1388 // SSE4.2 string instructions |
1389 void pcmpestri(XMMRegister xmm1, XMMRegister xmm2, int imm8); | |
1390 void pcmpestri(XMMRegister xmm1, Address src, int imm8); | |
1391 | |
4759 | 1392 // SSE4.1 packed move |
1393 void pmovzxbw(XMMRegister dst, XMMRegister src); | |
1394 void pmovzxbw(XMMRegister dst, Address src); | |
1395 | |
1060 | 1396 #ifndef _LP64 // no 32bit push/pop on amd64 |
304 | 1397 void popl(Address dst); |
1060 | 1398 #endif |
304 | 1399 |
1400 #ifdef _LP64 | |
1401 void popq(Address dst); | |
1402 #endif | |
1403 | |
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1404 void popcntl(Register dst, Address src); |
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1405 void popcntl(Register dst, Register src); |
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1406 |
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1407 #ifdef _LP64 |
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1408 void popcntq(Register dst, Address src); |
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1409 void popcntq(Register dst, Register src); |
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1410 #endif |
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1411 |
304 | 1412 // Prefetches (SSE, SSE2, 3DNOW only) |
1413 | |
1414 void prefetchnta(Address src); | |
1415 void prefetchr(Address src); | |
1416 void prefetcht0(Address src); | |
1417 void prefetcht1(Address src); | |
1418 void prefetcht2(Address src); | |
1419 void prefetchw(Address src); | |
1420 | |
2262 | 1421 // POR - Bitwise logical OR |
1422 void por(XMMRegister dst, XMMRegister src); | |
4759 | 1423 void por(XMMRegister dst, Address src); |
2262 | 1424 |
304 | 1425 // Shuffle Packed Doublewords |
1426 void pshufd(XMMRegister dst, XMMRegister src, int mode); | |
1427 void pshufd(XMMRegister dst, Address src, int mode); | |
1428 | |
1429 // Shuffle Packed Low Words | |
1430 void pshuflw(XMMRegister dst, XMMRegister src, int mode); | |
1431 void pshuflw(XMMRegister dst, Address src, int mode); | |
1432 | |
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1433 // Shift Right by bits Logical Quadword Immediate |
304 | 1434 void psrlq(XMMRegister dst, int shift); |
1435 | |
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1436 // Shift Right by bytes Logical DoubleQuadword Immediate |
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1437 void psrldq(XMMRegister dst, int shift); |
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1438 |
681 | 1439 // Logical Compare Double Quadword |
1440 void ptest(XMMRegister dst, XMMRegister src); | |
1441 void ptest(XMMRegister dst, Address src); | |
1442 | |
304 | 1443 // Interleave Low Bytes |
1444 void punpcklbw(XMMRegister dst, XMMRegister src); | |
4759 | 1445 void punpcklbw(XMMRegister dst, Address src); |
1446 | |
1447 // Interleave Low Doublewords | |
1448 void punpckldq(XMMRegister dst, XMMRegister src); | |
1449 void punpckldq(XMMRegister dst, Address src); | |
304 | 1450 |
1060 | 1451 #ifndef _LP64 // no 32bit push/pop on amd64 |
304 | 1452 void pushl(Address src); |
1060 | 1453 #endif |
304 | 1454 |
1455 void pushq(Address src); | |
1456 | |
1457 // Xor Packed Byte Integer Values | |
1458 void pxor(XMMRegister dst, Address src); | |
1459 void pxor(XMMRegister dst, XMMRegister src); | |
1460 | |
1461 void rcll(Register dst, int imm8); | |
1462 | |
1463 void rclq(Register dst, int imm8); | |
1464 | |
1465 void ret(int imm16); | |
0 | 1466 |
1467 void sahf(); | |
1468 | |
304 | 1469 void sarl(Register dst, int imm8); |
1470 void sarl(Register dst); | |
1471 | |
1472 void sarq(Register dst, int imm8); | |
1473 void sarq(Register dst); | |
1474 | |
1475 void sbbl(Address dst, int32_t imm32); | |
1476 void sbbl(Register dst, int32_t imm32); | |
1477 void sbbl(Register dst, Address src); | |
1478 void sbbl(Register dst, Register src); | |
1479 | |
1480 void sbbq(Address dst, int32_t imm32); | |
1481 void sbbq(Register dst, int32_t imm32); | |
1482 void sbbq(Register dst, Address src); | |
1483 void sbbq(Register dst, Register src); | |
1484 | |
1485 void setb(Condition cc, Register dst); | |
1486 | |
1487 void shldl(Register dst, Register src); | |
1488 | |
1489 void shll(Register dst, int imm8); | |
1490 void shll(Register dst); | |
1491 | |
1492 void shlq(Register dst, int imm8); | |
1493 void shlq(Register dst); | |
1494 | |
1495 void shrdl(Register dst, Register src); | |
1496 | |
1497 void shrl(Register dst, int imm8); | |
1498 void shrl(Register dst); | |
1499 | |
1500 void shrq(Register dst, int imm8); | |
1501 void shrq(Register dst); | |
1502 | |
1503 void smovl(); // QQQ generic? | |
1504 | |
1505 // Compute Square Root of Scalar Double-Precision Floating-Point Value | |
1506 void sqrtsd(XMMRegister dst, Address src); | |
1507 void sqrtsd(XMMRegister dst, XMMRegister src); | |
1508 | |
2008 | 1509 // Compute Square Root of Scalar Single-Precision Floating-Point Value |
1510 void sqrtss(XMMRegister dst, Address src); | |
1511 void sqrtss(XMMRegister dst, XMMRegister src); | |
1512 | |
304 | 1513 void std() { emit_byte(0xfd); } |
1514 | |
1515 void stmxcsr( Address dst ); | |
1516 | |
1517 void subl(Address dst, int32_t imm32); | |
1518 void subl(Address dst, Register src); | |
1519 void subl(Register dst, int32_t imm32); | |
1520 void subl(Register dst, Address src); | |
1521 void subl(Register dst, Register src); | |
1522 | |
1523 void subq(Address dst, int32_t imm32); | |
1524 void subq(Address dst, Register src); | |
1525 void subq(Register dst, int32_t imm32); | |
1526 void subq(Register dst, Address src); | |
1527 void subq(Register dst, Register src); | |
1528 | |
1529 | |
1530 // Subtract Scalar Double-Precision Floating-Point Values | |
1531 void subsd(XMMRegister dst, Address src); | |
0 | 1532 void subsd(XMMRegister dst, XMMRegister src); |
1533 | |
304 | 1534 // Subtract Scalar Single-Precision Floating-Point Values |
1535 void subss(XMMRegister dst, Address src); | |
1536 void subss(XMMRegister dst, XMMRegister src); | |
1537 | |
1538 void testb(Register dst, int imm8); | |
1539 | |
1540 void testl(Register dst, int32_t imm32); | |
1541 void testl(Register dst, Register src); | |
1542 void testl(Register dst, Address src); | |
1543 | |
1544 void testq(Register dst, int32_t imm32); | |
1545 void testq(Register dst, Register src); | |
1546 | |
1547 | |
1548 // Unordered Compare Scalar Double-Precision Floating-Point Values and set EFLAGS | |
1549 void ucomisd(XMMRegister dst, Address src); | |
0 | 1550 void ucomisd(XMMRegister dst, XMMRegister src); |
1551 | |
304 | 1552 // Unordered Compare Scalar Single-Precision Floating-Point Values and set EFLAGS |
1553 void ucomiss(XMMRegister dst, Address src); | |
1554 void ucomiss(XMMRegister dst, XMMRegister src); | |
1555 | |
1556 void xaddl(Address dst, Register src); | |
1557 | |
1558 void xaddq(Address dst, Register src); | |
1559 | |
1560 void xchgl(Register reg, Address adr); | |
1561 void xchgl(Register dst, Register src); | |
1562 | |
1563 void xchgq(Register reg, Address adr); | |
1564 void xchgq(Register dst, Register src); | |
1565 | |
4759 | 1566 // Get Value of Extended Control Register |
1567 void xgetbv() { | |
1568 emit_byte(0x0F); | |
1569 emit_byte(0x01); | |
1570 emit_byte(0xD0); | |
1571 } | |
1572 | |
304 | 1573 void xorl(Register dst, int32_t imm32); |
1574 void xorl(Register dst, Address src); | |
1575 void xorl(Register dst, Register src); | |
1576 | |
1577 void xorq(Register dst, Address src); | |
1578 void xorq(Register dst, Register src); | |
1579 | |
1580 // Bitwise Logical XOR of Packed Double-Precision Floating-Point Values | |
1581 void xorpd(XMMRegister dst, XMMRegister src); | |
1582 | |
1583 // Bitwise Logical XOR of Packed Single-Precision Floating-Point Values | |
0 | 1584 void xorps(XMMRegister dst, XMMRegister src); |
304 | 1585 |
1586 void set_byte_if_not_zero(Register dst); // sets reg to 1 if not zero, otherwise 0 | |
4759 | 1587 |
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1588 // AVX 3-operands instructions (encoded with VEX prefix) |
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1589 void vaddsd(XMMRegister dst, XMMRegister nds, Address src); |
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1590 void vaddsd(XMMRegister dst, XMMRegister nds, XMMRegister src); |
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1591 void vaddss(XMMRegister dst, XMMRegister nds, Address src); |
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1592 void vaddss(XMMRegister dst, XMMRegister nds, XMMRegister src); |
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1593 void vandpd(XMMRegister dst, XMMRegister nds, Address src); |
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1594 void vandps(XMMRegister dst, XMMRegister nds, Address src); |
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1595 void vdivsd(XMMRegister dst, XMMRegister nds, Address src); |
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1596 void vdivsd(XMMRegister dst, XMMRegister nds, XMMRegister src); |
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1597 void vdivss(XMMRegister dst, XMMRegister nds, Address src); |
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1598 void vdivss(XMMRegister dst, XMMRegister nds, XMMRegister src); |
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1599 void vmulsd(XMMRegister dst, XMMRegister nds, Address src); |
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1600 void vmulsd(XMMRegister dst, XMMRegister nds, XMMRegister src); |
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1601 void vmulss(XMMRegister dst, XMMRegister nds, Address src); |
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1602 void vmulss(XMMRegister dst, XMMRegister nds, XMMRegister src); |
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1603 void vsubsd(XMMRegister dst, XMMRegister nds, Address src); |
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1604 void vsubsd(XMMRegister dst, XMMRegister nds, XMMRegister src); |
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1605 void vsubss(XMMRegister dst, XMMRegister nds, Address src); |
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1606 void vsubss(XMMRegister dst, XMMRegister nds, XMMRegister src); |
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1607 void vxorpd(XMMRegister dst, XMMRegister nds, Address src); |
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1608 void vxorps(XMMRegister dst, XMMRegister nds, Address src); |
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1609 |
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1610 |
4759 | 1611 protected: |
1612 // Next instructions require address alignment 16 bytes SSE mode. | |
1613 // They should be called only from corresponding MacroAssembler instructions. | |
1614 void andpd(XMMRegister dst, Address src); | |
1615 void andps(XMMRegister dst, Address src); | |
1616 void xorpd(XMMRegister dst, Address src); | |
1617 void xorps(XMMRegister dst, Address src); | |
1618 | |
0 | 1619 }; |
1620 | |
1621 | |
1622 // MacroAssembler extends Assembler by frequently used macros. | |
1623 // | |
1624 // Instructions for which a 'better' code sequence exists depending | |
1625 // on arguments should also go in here. | |
1626 | |
1627 class MacroAssembler: public Assembler { | |
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1628 friend class LIR_Assembler; |
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1629 friend class Runtime1; // as_Address() |
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1630 |
0 | 1631 protected: |
1632 | |
1633 Address as_Address(AddressLiteral adr); | |
1634 Address as_Address(ArrayAddress adr); | |
1635 | |
1636 // Support for VM calls | |
1637 // | |
1638 // This is the base routine called by the different versions of call_VM_leaf. The interpreter | |
1639 // may customize this version by overriding it for its purposes (e.g., to save/restore | |
1640 // additional registers when doing a VM call). | |
1641 #ifdef CC_INTERP | |
1642 // c++ interpreter never wants to use interp_masm version of call_VM | |
1643 #define VIRTUAL | |
1644 #else | |
1645 #define VIRTUAL virtual | |
1646 #endif | |
1647 | |
1648 VIRTUAL void call_VM_leaf_base( | |
1649 address entry_point, // the entry point | |
1650 int number_of_arguments // the number of arguments to pop after the call | |
1651 ); | |
1652 | |
1653 // This is the base routine called by the different versions of call_VM. The interpreter | |
1654 // may customize this version by overriding it for its purposes (e.g., to save/restore | |
1655 // additional registers when doing a VM call). | |
1656 // | |
1657 // If no java_thread register is specified (noreg) than rdi will be used instead. call_VM_base | |
1658 // returns the register which contains the thread upon return. If a thread register has been | |
1659 // specified, the return value will correspond to that register. If no last_java_sp is specified | |
1660 // (noreg) than rsp will be used instead. | |
1661 VIRTUAL void call_VM_base( // returns the register containing the thread upon return | |
1662 Register oop_result, // where an oop-result ends up if any; use noreg otherwise | |
1663 Register java_thread, // the thread if computed before ; use noreg otherwise | |
1664 Register last_java_sp, // to set up last_Java_frame in stubs; use noreg otherwise | |
1665 address entry_point, // the entry point | |
1666 int number_of_arguments, // the number of arguments (w/o thread) to pop after the call | |
1667 bool check_exceptions // whether to check for pending exceptions after return | |
1668 ); | |
1669 | |
1670 // These routines should emit JVMTI PopFrame and ForceEarlyReturn handling code. | |
1671 // The implementation is only non-empty for the InterpreterMacroAssembler, | |
1672 // as only the interpreter handles PopFrame and ForceEarlyReturn requests. | |
1673 virtual void check_and_handle_popframe(Register java_thread); | |
1674 virtual void check_and_handle_earlyret(Register java_thread); | |
1675 | |
1676 void call_VM_helper(Register oop_result, address entry_point, int number_of_arguments, bool check_exceptions = true); | |
1677 | |
1678 // helpers for FPU flag access | |
1679 // tmp is a temporary register, if none is available use noreg | |
1680 void save_rax (Register tmp); | |
1681 void restore_rax(Register tmp); | |
1682 | |
1683 public: | |
1684 MacroAssembler(CodeBuffer* code) : Assembler(code) {} | |
1685 | |
1686 // Support for NULL-checks | |
1687 // | |
1688 // Generates code that causes a NULL OS exception if the content of reg is NULL. | |
1689 // If the accessed location is M[reg + offset] and the offset is known, provide the | |
1690 // offset. No explicit code generation is needed if the offset is within a certain | |
1691 // range (0 <= offset <= page_size). | |
1692 | |
1693 void null_check(Register reg, int offset = -1); | |
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1694 static bool needs_explicit_null_check(intptr_t offset); |
0 | 1695 |
1696 // Required platform-specific helpers for Label::patch_instructions. | |
1697 // They _shadow_ the declarations in AbstractAssembler, which are undefined. | |
1698 void pd_patch_instruction(address branch, address target); | |
1699 #ifndef PRODUCT | |
1700 static void pd_print_patched_instruction(address branch); | |
1701 #endif | |
1702 | |
1703 // The following 4 methods return the offset of the appropriate move instruction | |
1704 | |
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1705 // Support for fast byte/short loading with zero extension (depending on particular CPU) |
0 | 1706 int load_unsigned_byte(Register dst, Address src); |
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1707 int load_unsigned_short(Register dst, Address src); |
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1708 |
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1709 // Support for fast byte/short loading with sign extension (depending on particular CPU) |
0 | 1710 int load_signed_byte(Register dst, Address src); |
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1711 int load_signed_short(Register dst, Address src); |
0 | 1712 |
1713 // Support for sign-extension (hi:lo = extend_sign(lo)) | |
1714 void extend_sign(Register hi, Register lo); | |
1715 | |
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1716 // Load and store values by size and signed-ness |
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1717 void load_sized_value(Register dst, Address src, size_t size_in_bytes, bool is_signed, Register dst2 = noreg); |
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1718 void store_sized_value(Address dst, Register src, size_t size_in_bytes, Register src2 = noreg); |
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1719 |
0 | 1720 // Support for inc/dec with optimal instruction selection depending on value |
304 | 1721 |
1722 void increment(Register reg, int value = 1) { LP64_ONLY(incrementq(reg, value)) NOT_LP64(incrementl(reg, value)) ; } | |
1723 void decrement(Register reg, int value = 1) { LP64_ONLY(decrementq(reg, value)) NOT_LP64(decrementl(reg, value)) ; } | |
1724 | |
1725 void decrementl(Address dst, int value = 1); | |
1726 void decrementl(Register reg, int value = 1); | |
1727 | |
1728 void decrementq(Register reg, int value = 1); | |
1729 void decrementq(Address dst, int value = 1); | |
1730 | |
1731 void incrementl(Address dst, int value = 1); | |
1732 void incrementl(Register reg, int value = 1); | |
1733 | |
1734 void incrementq(Register reg, int value = 1); | |
1735 void incrementq(Address dst, int value = 1); | |
1736 | |
0 | 1737 |
1738 // Support optimal SSE move instructions. | |
1739 void movflt(XMMRegister dst, XMMRegister src) { | |
1740 if (UseXmmRegToRegMoveAll) { movaps(dst, src); return; } | |
1741 else { movss (dst, src); return; } | |
1742 } | |
1743 void movflt(XMMRegister dst, Address src) { movss(dst, src); } | |
1744 void movflt(XMMRegister dst, AddressLiteral src); | |
1745 void movflt(Address dst, XMMRegister src) { movss(dst, src); } | |
1746 | |
1747 void movdbl(XMMRegister dst, XMMRegister src) { | |
1748 if (UseXmmRegToRegMoveAll) { movapd(dst, src); return; } | |
1749 else { movsd (dst, src); return; } | |
1750 } | |
1751 | |
1752 void movdbl(XMMRegister dst, AddressLiteral src); | |
1753 | |
1754 void movdbl(XMMRegister dst, Address src) { | |
1755 if (UseXmmLoadAndClearUpper) { movsd (dst, src); return; } | |
1756 else { movlpd(dst, src); return; } | |
1757 } | |
1758 void movdbl(Address dst, XMMRegister src) { movsd(dst, src); } | |
1759 | |
304 | 1760 void incrementl(AddressLiteral dst); |
1761 void incrementl(ArrayAddress dst); | |
0 | 1762 |
1763 // Alignment | |
1764 void align(int modulus); | |
1765 | |
1766 // Misc | |
1767 void fat_nop(); // 5 byte nop | |
1768 | |
1769 // Stack frame creation/removal | |
1770 void enter(); | |
1771 void leave(); | |
1772 | |
1773 // Support for getting the JavaThread pointer (i.e.; a reference to thread-local information) | |
1774 // The pointer will be loaded into the thread register. | |
1775 void get_thread(Register thread); | |
1776 | |
362 | 1777 |
0 | 1778 // Support for VM calls |
1779 // | |
1780 // It is imperative that all calls into the VM are handled via the call_VM macros. | |
1781 // They make sure that the stack linkage is setup correctly. call_VM's correspond | |
1782 // to ENTRY/ENTRY_X entry points while call_VM_leaf's correspond to LEAF entry points. | |
1783 | |
304 | 1784 |
1785 void call_VM(Register oop_result, | |
1786 address entry_point, | |
1787 bool check_exceptions = true); | |
1788 void call_VM(Register oop_result, | |
1789 address entry_point, | |
1790 Register arg_1, | |
1791 bool check_exceptions = true); | |
1792 void call_VM(Register oop_result, | |
1793 address entry_point, | |
1794 Register arg_1, Register arg_2, | |
1795 bool check_exceptions = true); | |
1796 void call_VM(Register oop_result, | |
1797 address entry_point, | |
1798 Register arg_1, Register arg_2, Register arg_3, | |
1799 bool check_exceptions = true); | |
1800 | |
1801 // Overloadings with last_Java_sp | |
1802 void call_VM(Register oop_result, | |
1803 Register last_java_sp, | |
1804 address entry_point, | |
1805 int number_of_arguments = 0, | |
1806 bool check_exceptions = true); | |
1807 void call_VM(Register oop_result, | |
1808 Register last_java_sp, | |
1809 address entry_point, | |
1810 Register arg_1, bool | |
1811 check_exceptions = true); | |
1812 void call_VM(Register oop_result, | |
1813 Register last_java_sp, | |
1814 address entry_point, | |
1815 Register arg_1, Register arg_2, | |
1816 bool check_exceptions = true); | |
1817 void call_VM(Register oop_result, | |
1818 Register last_java_sp, | |
1819 address entry_point, | |
1820 Register arg_1, Register arg_2, Register arg_3, | |
1821 bool check_exceptions = true); | |
1822 | |
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1823 // These always tightly bind to MacroAssembler::call_VM_base |
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1824 // bypassing the virtual implementation |
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1825 void super_call_VM(Register oop_result, Register last_java_sp, address entry_point, int number_of_arguments = 0, bool check_exceptions = true); |
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1826 void super_call_VM(Register oop_result, Register last_java_sp, address entry_point, Register arg_1, bool check_exceptions = true); |
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1827 void super_call_VM(Register oop_result, Register last_java_sp, address entry_point, Register arg_1, Register arg_2, bool check_exceptions = true); |
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1828 void super_call_VM(Register oop_result, Register last_java_sp, address entry_point, Register arg_1, Register arg_2, Register arg_3, bool check_exceptions = true); |
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1829 void super_call_VM(Register oop_result, Register last_java_sp, address entry_point, Register arg_1, Register arg_2, Register arg_3, Register arg_4, bool check_exceptions = true); |
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1830 |
304 | 1831 void call_VM_leaf(address entry_point, |
1832 int number_of_arguments = 0); | |
1833 void call_VM_leaf(address entry_point, | |
1834 Register arg_1); | |
1835 void call_VM_leaf(address entry_point, | |
1836 Register arg_1, Register arg_2); | |
1837 void call_VM_leaf(address entry_point, | |
1838 Register arg_1, Register arg_2, Register arg_3); | |
0 | 1839 |
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1840 // These always tightly bind to MacroAssembler::call_VM_leaf_base |
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1841 // bypassing the virtual implementation |
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1842 void super_call_VM_leaf(address entry_point); |
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1843 void super_call_VM_leaf(address entry_point, Register arg_1); |
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1844 void super_call_VM_leaf(address entry_point, Register arg_1, Register arg_2); |
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1845 void super_call_VM_leaf(address entry_point, Register arg_1, Register arg_2, Register arg_3); |
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1846 void super_call_VM_leaf(address entry_point, Register arg_1, Register arg_2, Register arg_3, Register arg_4); |
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1847 |
0 | 1848 // last Java Frame (fills frame anchor) |
304 | 1849 void set_last_Java_frame(Register thread, |
1850 Register last_java_sp, | |
1851 Register last_java_fp, | |
1852 address last_java_pc); | |
1853 | |
1854 // thread in the default location (r15_thread on 64bit) | |
1855 void set_last_Java_frame(Register last_java_sp, | |
1856 Register last_java_fp, | |
1857 address last_java_pc); | |
1858 | |
0 | 1859 void reset_last_Java_frame(Register thread, bool clear_fp, bool clear_pc); |
1860 | |
304 | 1861 // thread in the default location (r15_thread on 64bit) |
1862 void reset_last_Java_frame(bool clear_fp, bool clear_pc); | |
1863 | |
0 | 1864 // Stores |
1865 void store_check(Register obj); // store check for obj - register is destroyed afterwards | |
1866 void store_check(Register obj, Address dst); // same as above, dst is exact store location (reg. is destroyed) | |
1867 | |
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1868 #ifndef SERIALGC |
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1869 |
362 | 1870 void g1_write_barrier_pre(Register obj, |
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1871 Register pre_val, |
362 | 1872 Register thread, |
1873 Register tmp, | |
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1874 bool tosca_live, |
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1875 bool expand_call); |
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1876 |
362 | 1877 void g1_write_barrier_post(Register store_addr, |
1878 Register new_val, | |
1879 Register thread, | |
1880 Register tmp, | |
1881 Register tmp2); | |
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1882 |
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1883 #endif // SERIALGC |
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1884 |
0 | 1885 // split store_check(Register obj) to enhance instruction interleaving |
1886 void store_check_part_1(Register obj); | |
1887 void store_check_part_2(Register obj); | |
1888 | |
1889 // C 'boolean' to Java boolean: x == 0 ? 0 : 1 | |
1890 void c2bool(Register x); | |
1891 | |
1892 // C++ bool manipulation | |
1893 | |
1894 void movbool(Register dst, Address src); | |
1895 void movbool(Address dst, bool boolconst); | |
1896 void movbool(Address dst, Register src); | |
1897 void testbool(Register dst); | |
1898 | |
304 | 1899 // oop manipulations |
1900 void load_klass(Register dst, Register src); | |
1901 void store_klass(Register dst, Register src); | |
1902 | |
1846 | 1903 void load_heap_oop(Register dst, Address src); |
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1904 void load_heap_oop_not_null(Register dst, Address src); |
1846 | 1905 void store_heap_oop(Address dst, Register src); |
1906 | |
1907 // Used for storing NULL. All other oop constants should be | |
1908 // stored using routines that take a jobject. | |
1909 void store_heap_oop_null(Address dst); | |
1910 | |
304 | 1911 void load_prototype_header(Register dst, Register src); |
1912 | |
1913 #ifdef _LP64 | |
1914 void store_klass_gap(Register dst, Register src); | |
1915 | |
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1916 // This dummy is to prevent a call to store_heap_oop from |
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1917 // converting a zero (like NULL) into a Register by giving |
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1918 // the compiler two choices it can't resolve |
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1919 |
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1920 void store_heap_oop(Address dst, void* dummy); |
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1921 |
304 | 1922 void encode_heap_oop(Register r); |
1923 void decode_heap_oop(Register r); | |
1924 void encode_heap_oop_not_null(Register r); | |
1925 void decode_heap_oop_not_null(Register r); | |
1926 void encode_heap_oop_not_null(Register dst, Register src); | |
1927 void decode_heap_oop_not_null(Register dst, Register src); | |
1928 | |
1929 void set_narrow_oop(Register dst, jobject obj); | |
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1930 void set_narrow_oop(Address dst, jobject obj); |
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1931 void cmp_narrow_oop(Register dst, jobject obj); |
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1932 void cmp_narrow_oop(Address dst, jobject obj); |
304 | 1933 |
1934 // if heap base register is used - reinit it with the correct value | |
1935 void reinit_heapbase(); | |
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1936 |
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1937 DEBUG_ONLY(void verify_heapbase(const char* msg);) |
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1938 |
304 | 1939 #endif // _LP64 |
1940 | |
1941 // Int division/remainder for Java | |
0 | 1942 // (as idivl, but checks for special case as described in JVM spec.) |
1943 // returns idivl instruction offset for implicit exception handling | |
1944 int corrected_idivl(Register reg); | |
1945 | |
304 | 1946 // Long division/remainder for Java |
1947 // (as idivq, but checks for special case as described in JVM spec.) | |
1948 // returns idivq instruction offset for implicit exception handling | |
1949 int corrected_idivq(Register reg); | |
1950 | |
0 | 1951 void int3(); |
1952 | |
304 | 1953 // Long operation macros for a 32bit cpu |
0 | 1954 // Long negation for Java |
1955 void lneg(Register hi, Register lo); | |
1956 | |
1957 // Long multiplication for Java | |
304 | 1958 // (destroys contents of eax, ebx, ecx and edx) |
0 | 1959 void lmul(int x_rsp_offset, int y_rsp_offset); // rdx:rax = x * y |
1960 | |
1961 // Long shifts for Java | |
1962 // (semantics as described in JVM spec.) | |
1963 void lshl(Register hi, Register lo); // hi:lo << (rcx & 0x3f) | |
1964 void lshr(Register hi, Register lo, bool sign_extension = false); // hi:lo >> (rcx & 0x3f) | |
1965 | |
1966 // Long compare for Java | |
1967 // (semantics as described in JVM spec.) | |
1968 void lcmp2int(Register x_hi, Register x_lo, Register y_hi, Register y_lo); // x_hi = lcmp(x, y) | |
1969 | |
304 | 1970 |
1971 // misc | |
1972 | |
1973 // Sign extension | |
1974 void sign_extend_short(Register reg); | |
1975 void sign_extend_byte(Register reg); | |
1976 | |
1977 // Division by power of 2, rounding towards 0 | |
1978 void division_with_shift(Register reg, int shift_value); | |
1979 | |
0 | 1980 // Compares the top-most stack entries on the FPU stack and sets the eflags as follows: |
1981 // | |
1982 // CF (corresponds to C0) if x < y | |
1983 // PF (corresponds to C2) if unordered | |
1984 // ZF (corresponds to C3) if x = y | |
1985 // | |
1986 // The arguments are in reversed order on the stack (i.e., top of stack is first argument). | |
1987 // tmp is a temporary register, if none is available use noreg (only matters for non-P6 code) | |
1988 void fcmp(Register tmp); | |
1989 // Variant of the above which allows y to be further down the stack | |
1990 // and which only pops x and y if specified. If pop_right is | |
1991 // specified then pop_left must also be specified. | |
1992 void fcmp(Register tmp, int index, bool pop_left, bool pop_right); | |
1993 | |
1994 // Floating-point comparison for Java | |
1995 // Compares the top-most stack entries on the FPU stack and stores the result in dst. | |
1996 // The arguments are in reversed order on the stack (i.e., top of stack is first argument). | |
1997 // (semantics as described in JVM spec.) | |
1998 void fcmp2int(Register dst, bool unordered_is_less); | |
1999 // Variant of the above which allows y to be further down the stack | |
2000 // and which only pops x and y if specified. If pop_right is | |
2001 // specified then pop_left must also be specified. | |
2002 void fcmp2int(Register dst, bool unordered_is_less, int index, bool pop_left, bool pop_right); | |
2003 | |
2004 // Floating-point remainder for Java (ST0 = ST0 fremr ST1, ST1 is empty afterwards) | |
2005 // tmp is a temporary register, if none is available use noreg | |
2006 void fremr(Register tmp); | |
2007 | |
2008 | |
2009 // same as fcmp2int, but using SSE2 | |
2010 void cmpss2int(XMMRegister opr1, XMMRegister opr2, Register dst, bool unordered_is_less); | |
2011 void cmpsd2int(XMMRegister opr1, XMMRegister opr2, Register dst, bool unordered_is_less); | |
2012 | |
2013 // Inlined sin/cos generator for Java; must not use CPU instruction | |
2014 // directly on Intel as it does not have high enough precision | |
2015 // outside of the range [-pi/4, pi/4]. Extra argument indicate the | |
2016 // number of FPU stack slots in use; all but the topmost will | |
2017 // require saving if a slow case is necessary. Assumes argument is | |
2018 // on FP TOS; result is on FP TOS. No cpu registers are changed by | |
2019 // this code. | |
2020 void trigfunc(char trig, int num_fpu_regs_in_use = 1); | |
2021 | |
2022 // branch to L if FPU flag C2 is set/not set | |
2023 // tmp is a temporary register, if none is available use noreg | |
2024 void jC2 (Register tmp, Label& L); | |
2025 void jnC2(Register tmp, Label& L); | |
2026 | |
2027 // Pop ST (ffree & fincstp combined) | |
2028 void fpop(); | |
2029 | |
2030 // pushes double TOS element of FPU stack on CPU stack; pops from FPU stack | |
2031 void push_fTOS(); | |
2032 | |
2033 // pops double TOS element from CPU stack and pushes on FPU stack | |
2034 void pop_fTOS(); | |
2035 | |
2036 void empty_FPU_stack(); | |
2037 | |
2038 void push_IU_state(); | |
2039 void pop_IU_state(); | |
2040 | |
2041 void push_FPU_state(); | |
2042 void pop_FPU_state(); | |
2043 | |
2044 void push_CPU_state(); | |
2045 void pop_CPU_state(); | |
2046 | |
2047 // Round up to a power of two | |
2048 void round_to(Register reg, int modulus); | |
2049 | |
2050 // Callee saved registers handling | |
2051 void push_callee_saved_registers(); | |
2052 void pop_callee_saved_registers(); | |
2053 | |
2054 // allocation | |
2055 void eden_allocate( | |
2056 Register obj, // result: pointer to object after successful allocation | |
2057 Register var_size_in_bytes, // object size in bytes if unknown at compile time; invalid otherwise | |
2058 int con_size_in_bytes, // object size in bytes if known at compile time | |
2059 Register t1, // temp register | |
2060 Label& slow_case // continuation point if fast allocation fails | |
2061 ); | |
2062 void tlab_allocate( | |
2063 Register obj, // result: pointer to object after successful allocation | |
2064 Register var_size_in_bytes, // object size in bytes if unknown at compile time; invalid otherwise | |
2065 int con_size_in_bytes, // object size in bytes if known at compile time | |
2066 Register t1, // temp register | |
2067 Register t2, // temp register | |
2068 Label& slow_case // continuation point if fast allocation fails | |
2069 ); | |
2100
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2070 Register tlab_refill(Label& retry_tlab, Label& try_eden, Label& slow_case); // returns TLS address |
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2071 void incr_allocated_bytes(Register thread, |
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2072 Register var_size_in_bytes, int con_size_in_bytes, |
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2073 Register t1 = noreg); |
0 | 2074 |
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2075 // interface method calling |
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2076 void lookup_interface_method(Register recv_klass, |
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2077 Register intf_klass, |
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2078 RegisterOrConstant itable_index, |
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2079 Register method_result, |
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2080 Register scan_temp, |
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2081 Label& no_such_interface); |
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2082 |
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2083 // Test sub_klass against super_klass, with fast and slow paths. |
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2084 |
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2085 // The fast path produces a tri-state answer: yes / no / maybe-slow. |
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2086 // One of the three labels can be NULL, meaning take the fall-through. |
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2087 // If super_check_offset is -1, the value is loaded up from super_klass. |
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2088 // No registers are killed, except temp_reg. |
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2089 void check_klass_subtype_fast_path(Register sub_klass, |
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2090 Register super_klass, |
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2091 Register temp_reg, |
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2092 Label* L_success, |
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2093 Label* L_failure, |
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2094 Label* L_slow_path, |
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2095 RegisterOrConstant super_check_offset = RegisterOrConstant(-1)); |
644
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2096 |
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2097 // The rest of the type check; must be wired to a corresponding fast path. |
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2098 // It does not repeat the fast path logic, so don't use it standalone. |
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2099 // The temp_reg and temp2_reg can be noreg, if no temps are available. |
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2100 // Updates the sub's secondary super cache as necessary. |
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2101 // If set_cond_codes, condition codes will be Z on success, NZ on failure. |
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2102 void check_klass_subtype_slow_path(Register sub_klass, |
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2103 Register super_klass, |
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2104 Register temp_reg, |
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2105 Register temp2_reg, |
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2106 Label* L_success, |
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2107 Label* L_failure, |
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2108 bool set_cond_codes = false); |
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2109 |
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2110 // Simplified, combined version, good for typical uses. |
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2111 // Falls through on failure. |
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2112 void check_klass_subtype(Register sub_klass, |
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2113 Register super_klass, |
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2114 Register temp_reg, |
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2115 Label& L_success); |
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2116 |
710 | 2117 // method handles (JSR 292) |
2118 void check_method_handle_type(Register mtype_reg, Register mh_reg, | |
2119 Register temp_reg, | |
2120 Label& wrong_method_type); | |
2121 void load_method_handle_vmslots(Register vmslots_reg, Register mh_reg, | |
2122 Register temp_reg); | |
2123 void jump_to_method_handle_entry(Register mh_reg, Register temp_reg); | |
2124 Address argument_address(RegisterOrConstant arg_slot, int extra_slot_offset = 0); | |
2125 | |
2126 | |
0 | 2127 //---- |
2128 void set_word_if_not_zero(Register reg); // sets reg to 1 if not zero, otherwise 0 | |
2129 | |
2130 // Debugging | |
304 | 2131 |
2132 // only if +VerifyOops | |
2133 void verify_oop(Register reg, const char* s = "broken oop"); | |
0 | 2134 void verify_oop_addr(Address addr, const char * s = "broken oop addr"); |
2135 | |
304 | 2136 // only if +VerifyFPU |
2137 void verify_FPU(int stack_depth, const char* s = "illegal FPU state"); | |
2138 | |
2139 // prints msg, dumps registers and stops execution | |
2140 void stop(const char* msg); | |
2141 | |
2142 // prints msg and continues | |
2143 void warn(const char* msg); | |
2144 | |
2145 static void debug32(int rdi, int rsi, int rbp, int rsp, int rbx, int rdx, int rcx, int rax, int eip, char* msg); | |
2146 static void debug64(char* msg, int64_t pc, int64_t regs[]); | |
2147 | |
0 | 2148 void os_breakpoint(); |
304 | 2149 |
0 | 2150 void untested() { stop("untested"); } |
304 | 2151 |
1846 | 2152 void unimplemented(const char* what = "") { char* b = new char[1024]; jio_snprintf(b, 1024, "unimplemented: %s", what); stop(b); } |
304 | 2153 |
0 | 2154 void should_not_reach_here() { stop("should not reach here"); } |
304 | 2155 |
0 | 2156 void print_CPU_state(); |
2157 | |
2158 // Stack overflow checking | |
2159 void bang_stack_with_offset(int offset) { | |
2160 // stack grows down, caller passes positive offset | |
2161 assert(offset > 0, "must bang with negative offset"); | |
2162 movl(Address(rsp, (-offset)), rax); | |
2163 } | |
2164 | |
2165 // Writes to stack successive pages until offset reached to check for | |
2166 // stack overflow + shadow pages. Also, clobbers tmp | |
2167 void bang_stack_size(Register size, Register tmp); | |
2168 | |
665
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2169 virtual RegisterOrConstant delayed_value_impl(intptr_t* delayed_value_addr, |
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2170 Register tmp, |
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2171 int offset); |
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2172 |
0 | 2173 // Support for serializing memory accesses between threads |
2174 void serialize_memory(Register thread, Register tmp); | |
2175 | |
2176 void verify_tlab(); | |
2177 | |
2178 // Biased locking support | |
2179 // lock_reg and obj_reg must be loaded up with the appropriate values. | |
2180 // swap_reg must be rax, and is killed. | |
2181 // tmp_reg is optional. If it is supplied (i.e., != noreg) it will | |
2182 // be killed; if not supplied, push/pop will be used internally to | |
2183 // allocate a temporary (inefficient, avoid if possible). | |
2184 // Optional slow case is for implementations (interpreter and C1) which branch to | |
2185 // slow case directly. Leaves condition codes set for C2's Fast_Lock node. | |
2186 // Returns offset of first potentially-faulting instruction for null | |
2187 // check info (currently consumed only by C1). If | |
2188 // swap_reg_contains_mark is true then returns -1 as it is assumed | |
2189 // the calling code has already passed any potential faults. | |
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2190 int biased_locking_enter(Register lock_reg, Register obj_reg, |
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2191 Register swap_reg, Register tmp_reg, |
0 | 2192 bool swap_reg_contains_mark, |
2193 Label& done, Label* slow_case = NULL, | |
2194 BiasedLockingCounters* counters = NULL); | |
2195 void biased_locking_exit (Register obj_reg, Register temp_reg, Label& done); | |
2196 | |
2197 | |
2198 Condition negate_condition(Condition cond); | |
2199 | |
2200 // Instructions that use AddressLiteral operands. These instruction can handle 32bit/64bit | |
2201 // operands. In general the names are modified to avoid hiding the instruction in Assembler | |
2202 // so that we don't need to implement all the varieties in the Assembler with trivial wrappers | |
2203 // here in MacroAssembler. The major exception to this rule is call | |
2204 | |
2205 // Arithmetics | |
2206 | |
304 | 2207 |
2208 void addptr(Address dst, int32_t src) { LP64_ONLY(addq(dst, src)) NOT_LP64(addl(dst, src)) ; } | |
2209 void addptr(Address dst, Register src); | |
2210 | |
2211 void addptr(Register dst, Address src) { LP64_ONLY(addq(dst, src)) NOT_LP64(addl(dst, src)); } | |
2212 void addptr(Register dst, int32_t src); | |
2213 void addptr(Register dst, Register src); | |
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2214 void addptr(Register dst, RegisterOrConstant src) { |
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2215 if (src.is_constant()) addptr(dst, (int) src.as_constant()); |
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2216 else addptr(dst, src.as_register()); |
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2217 } |
304 | 2218 |
2219 void andptr(Register dst, int32_t src); | |
2220 void andptr(Register src1, Register src2) { LP64_ONLY(andq(src1, src2)) NOT_LP64(andl(src1, src2)) ; } | |
2221 | |
2222 void cmp8(AddressLiteral src1, int imm); | |
2223 | |
2224 // renamed to drag out the casting of address to int32_t/intptr_t | |
0 | 2225 void cmp32(Register src1, int32_t imm); |
2226 | |
2227 void cmp32(AddressLiteral src1, int32_t imm); | |
2228 // compare reg - mem, or reg - &mem | |
2229 void cmp32(Register src1, AddressLiteral src2); | |
2230 | |
2231 void cmp32(Register src1, Address src2); | |
2232 | |
304 | 2233 #ifndef _LP64 |
2234 void cmpoop(Address dst, jobject obj); | |
2235 void cmpoop(Register dst, jobject obj); | |
2236 #endif // _LP64 | |
2237 | |
0 | 2238 // NOTE src2 must be the lval. This is NOT an mem-mem compare |
2239 void cmpptr(Address src1, AddressLiteral src2); | |
2240 | |
2241 void cmpptr(Register src1, AddressLiteral src2); | |
2242 | |
304 | 2243 void cmpptr(Register src1, Register src2) { LP64_ONLY(cmpq(src1, src2)) NOT_LP64(cmpl(src1, src2)) ; } |
2244 void cmpptr(Register src1, Address src2) { LP64_ONLY(cmpq(src1, src2)) NOT_LP64(cmpl(src1, src2)) ; } | |
2245 // void cmpptr(Address src1, Register src2) { LP64_ONLY(cmpq(src1, src2)) NOT_LP64(cmpl(src1, src2)) ; } | |
2246 | |
2247 void cmpptr(Register src1, int32_t src2) { LP64_ONLY(cmpq(src1, src2)) NOT_LP64(cmpl(src1, src2)) ; } | |
2248 void cmpptr(Address src1, int32_t src2) { LP64_ONLY(cmpq(src1, src2)) NOT_LP64(cmpl(src1, src2)) ; } | |
2249 | |
2250 // cmp64 to avoild hiding cmpq | |
2251 void cmp64(Register src1, AddressLiteral src); | |
2252 | |
2253 void cmpxchgptr(Register reg, Address adr); | |
2254 | |
2255 void locked_cmpxchgptr(Register reg, AddressLiteral adr); | |
2256 | |
2257 | |
2258 void imulptr(Register dst, Register src) { LP64_ONLY(imulq(dst, src)) NOT_LP64(imull(dst, src)); } | |
2259 | |
2260 | |
2261 void negptr(Register dst) { LP64_ONLY(negq(dst)) NOT_LP64(negl(dst)); } | |
2262 | |
2263 void notptr(Register dst) { LP64_ONLY(notq(dst)) NOT_LP64(notl(dst)); } | |
2264 | |
2265 void shlptr(Register dst, int32_t shift); | |
2266 void shlptr(Register dst) { LP64_ONLY(shlq(dst)) NOT_LP64(shll(dst)); } | |
2267 | |
2268 void shrptr(Register dst, int32_t shift); | |
2269 void shrptr(Register dst) { LP64_ONLY(shrq(dst)) NOT_LP64(shrl(dst)); } | |
2270 | |
2271 void sarptr(Register dst) { LP64_ONLY(sarq(dst)) NOT_LP64(sarl(dst)); } | |
2272 void sarptr(Register dst, int32_t src) { LP64_ONLY(sarq(dst, src)) NOT_LP64(sarl(dst, src)); } | |
2273 | |
2274 void subptr(Address dst, int32_t src) { LP64_ONLY(subq(dst, src)) NOT_LP64(subl(dst, src)); } | |
2275 | |
2276 void subptr(Register dst, Address src) { LP64_ONLY(subq(dst, src)) NOT_LP64(subl(dst, src)); } | |
2277 void subptr(Register dst, int32_t src); | |
2278 void subptr(Register dst, Register src); | |
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2279 void subptr(Register dst, RegisterOrConstant src) { |
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2280 if (src.is_constant()) subptr(dst, (int) src.as_constant()); |
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2281 else subptr(dst, src.as_register()); |
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2282 } |
304 | 2283 |
2284 void sbbptr(Address dst, int32_t src) { LP64_ONLY(sbbq(dst, src)) NOT_LP64(sbbl(dst, src)); } | |
2285 void sbbptr(Register dst, int32_t src) { LP64_ONLY(sbbq(dst, src)) NOT_LP64(sbbl(dst, src)); } | |
2286 | |
2287 void xchgptr(Register src1, Register src2) { LP64_ONLY(xchgq(src1, src2)) NOT_LP64(xchgl(src1, src2)) ; } | |
2288 void xchgptr(Register src1, Address src2) { LP64_ONLY(xchgq(src1, src2)) NOT_LP64(xchgl(src1, src2)) ; } | |
2289 | |
2290 void xaddptr(Address src1, Register src2) { LP64_ONLY(xaddq(src1, src2)) NOT_LP64(xaddl(src1, src2)) ; } | |
2291 | |
2292 | |
0 | 2293 |
2294 // Helper functions for statistics gathering. | |
2295 // Conditionally (atomically, on MPs) increments passed counter address, preserving condition codes. | |
2296 void cond_inc32(Condition cond, AddressLiteral counter_addr); | |
2297 // Unconditional atomic increment. | |
2298 void atomic_incl(AddressLiteral counter_addr); | |
2299 | |
2300 void lea(Register dst, AddressLiteral adr); | |
2301 void lea(Address dst, AddressLiteral adr); | |
304 | 2302 void lea(Register dst, Address adr) { Assembler::lea(dst, adr); } |
2303 | |
2304 void leal32(Register dst, Address src) { leal(dst, src); } | |
2305 | |
2404
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2306 // Import other testl() methods from the parent class or else |
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2307 // they will be hidden by the following overriding declaration. |
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2308 using Assembler::testl; |
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|
2309 void testl(Register dst, AddressLiteral src); |
304 | 2310 |
2311 void orptr(Register dst, Address src) { LP64_ONLY(orq(dst, src)) NOT_LP64(orl(dst, src)); } | |
2312 void orptr(Register dst, Register src) { LP64_ONLY(orq(dst, src)) NOT_LP64(orl(dst, src)); } | |
2313 void orptr(Register dst, int32_t src) { LP64_ONLY(orq(dst, src)) NOT_LP64(orl(dst, src)); } | |
2314 | |
2315 void testptr(Register src, int32_t imm32) { LP64_ONLY(testq(src, imm32)) NOT_LP64(testl(src, imm32)); } | |
2316 void testptr(Register src1, Register src2); | |
2317 | |
2318 void xorptr(Register dst, Register src) { LP64_ONLY(xorq(dst, src)) NOT_LP64(xorl(dst, src)); } | |
2319 void xorptr(Register dst, Address src) { LP64_ONLY(xorq(dst, src)) NOT_LP64(xorl(dst, src)); } | |
0 | 2320 |
2321 // Calls | |
2322 | |
2323 void call(Label& L, relocInfo::relocType rtype); | |
2324 void call(Register entry); | |
2325 | |
2326 // NOTE: this call tranfers to the effective address of entry NOT | |
2327 // the address contained by entry. This is because this is more natural | |
2328 // for jumps/calls. | |
2329 void call(AddressLiteral entry); | |
2330 | |
2331 // Jumps | |
2332 | |
2333 // NOTE: these jumps tranfer to the effective address of dst NOT | |
2334 // the address contained by dst. This is because this is more natural | |
2335 // for jumps/calls. | |
2336 void jump(AddressLiteral dst); | |
2337 void jump_cc(Condition cc, AddressLiteral dst); | |
2338 | |
2339 // 32bit can do a case table jump in one instruction but we no longer allow the base | |
2340 // to be installed in the Address class. This jump will tranfers to the address | |
2341 // contained in the location described by entry (not the address of entry) | |
2342 void jump(ArrayAddress entry); | |
2343 | |
2344 // Floating | |
2345 | |
2346 void andpd(XMMRegister dst, Address src) { Assembler::andpd(dst, src); } | |
2347 void andpd(XMMRegister dst, AddressLiteral src); | |
2348 | |
4759 | 2349 void andps(XMMRegister dst, XMMRegister src) { Assembler::andps(dst, src); } |
2350 void andps(XMMRegister dst, Address src) { Assembler::andps(dst, src); } | |
2351 void andps(XMMRegister dst, AddressLiteral src); | |
2352 | |
2353 void comiss(XMMRegister dst, XMMRegister src) { Assembler::comiss(dst, src); } | |
0 | 2354 void comiss(XMMRegister dst, Address src) { Assembler::comiss(dst, src); } |
2355 void comiss(XMMRegister dst, AddressLiteral src); | |
2356 | |
4759 | 2357 void comisd(XMMRegister dst, XMMRegister src) { Assembler::comisd(dst, src); } |
0 | 2358 void comisd(XMMRegister dst, Address src) { Assembler::comisd(dst, src); } |
2359 void comisd(XMMRegister dst, AddressLiteral src); | |
2360 | |
2008 | 2361 void fadd_s(Address src) { Assembler::fadd_s(src); } |
2362 void fadd_s(AddressLiteral src) { Assembler::fadd_s(as_Address(src)); } | |
2363 | |
0 | 2364 void fldcw(Address src) { Assembler::fldcw(src); } |
2365 void fldcw(AddressLiteral src); | |
2366 | |
2367 void fld_s(int index) { Assembler::fld_s(index); } | |
2368 void fld_s(Address src) { Assembler::fld_s(src); } | |
2369 void fld_s(AddressLiteral src); | |
2370 | |
2371 void fld_d(Address src) { Assembler::fld_d(src); } | |
2372 void fld_d(AddressLiteral src); | |
2373 | |
2374 void fld_x(Address src) { Assembler::fld_x(src); } | |
2375 void fld_x(AddressLiteral src); | |
2376 | |
2008 | 2377 void fmul_s(Address src) { Assembler::fmul_s(src); } |
2378 void fmul_s(AddressLiteral src) { Assembler::fmul_s(as_Address(src)); } | |
2379 | |
0 | 2380 void ldmxcsr(Address src) { Assembler::ldmxcsr(src); } |
2381 void ldmxcsr(AddressLiteral src); | |
2382 | |
304 | 2383 private: |
2384 // these are private because users should be doing movflt/movdbl | |
2385 | |
0 | 2386 void movss(Address dst, XMMRegister src) { Assembler::movss(dst, src); } |
2387 void movss(XMMRegister dst, XMMRegister src) { Assembler::movss(dst, src); } | |
2388 void movss(XMMRegister dst, Address src) { Assembler::movss(dst, src); } | |
2389 void movss(XMMRegister dst, AddressLiteral src); | |
2390 | |
4759 | 2391 void movlpd(XMMRegister dst, Address src) {Assembler::movlpd(dst, src); } |
304 | 2392 void movlpd(XMMRegister dst, AddressLiteral src); |
2393 | |
2394 public: | |
2395 | |
2008 | 2396 void addsd(XMMRegister dst, XMMRegister src) { Assembler::addsd(dst, src); } |
2397 void addsd(XMMRegister dst, Address src) { Assembler::addsd(dst, src); } | |
4759 | 2398 void addsd(XMMRegister dst, AddressLiteral src); |
2008 | 2399 |
2400 void addss(XMMRegister dst, XMMRegister src) { Assembler::addss(dst, src); } | |
2401 void addss(XMMRegister dst, Address src) { Assembler::addss(dst, src); } | |
4759 | 2402 void addss(XMMRegister dst, AddressLiteral src); |
2008 | 2403 |
2404 void divsd(XMMRegister dst, XMMRegister src) { Assembler::divsd(dst, src); } | |
2405 void divsd(XMMRegister dst, Address src) { Assembler::divsd(dst, src); } | |
4759 | 2406 void divsd(XMMRegister dst, AddressLiteral src); |
2008 | 2407 |
2408 void divss(XMMRegister dst, XMMRegister src) { Assembler::divss(dst, src); } | |
2409 void divss(XMMRegister dst, Address src) { Assembler::divss(dst, src); } | |
4759 | 2410 void divss(XMMRegister dst, AddressLiteral src); |
2008 | 2411 |
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2412 void movsd(XMMRegister dst, XMMRegister src) { Assembler::movsd(dst, src); } |
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2413 void movsd(Address dst, XMMRegister src) { Assembler::movsd(dst, src); } |
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2414 void movsd(XMMRegister dst, Address src) { Assembler::movsd(dst, src); } |
4759 | 2415 void movsd(XMMRegister dst, AddressLiteral src); |
2008 | 2416 |
2417 void mulsd(XMMRegister dst, XMMRegister src) { Assembler::mulsd(dst, src); } | |
2418 void mulsd(XMMRegister dst, Address src) { Assembler::mulsd(dst, src); } | |
4759 | 2419 void mulsd(XMMRegister dst, AddressLiteral src); |
2008 | 2420 |
2421 void mulss(XMMRegister dst, XMMRegister src) { Assembler::mulss(dst, src); } | |
2422 void mulss(XMMRegister dst, Address src) { Assembler::mulss(dst, src); } | |
4759 | 2423 void mulss(XMMRegister dst, AddressLiteral src); |
2008 | 2424 |
2425 void sqrtsd(XMMRegister dst, XMMRegister src) { Assembler::sqrtsd(dst, src); } | |
2426 void sqrtsd(XMMRegister dst, Address src) { Assembler::sqrtsd(dst, src); } | |
4759 | 2427 void sqrtsd(XMMRegister dst, AddressLiteral src); |
2008 | 2428 |
2429 void sqrtss(XMMRegister dst, XMMRegister src) { Assembler::sqrtss(dst, src); } | |
2430 void sqrtss(XMMRegister dst, Address src) { Assembler::sqrtss(dst, src); } | |
4759 | 2431 void sqrtss(XMMRegister dst, AddressLiteral src); |
2008 | 2432 |
2433 void subsd(XMMRegister dst, XMMRegister src) { Assembler::subsd(dst, src); } | |
2434 void subsd(XMMRegister dst, Address src) { Assembler::subsd(dst, src); } | |
4759 | 2435 void subsd(XMMRegister dst, AddressLiteral src); |
2008 | 2436 |
2437 void subss(XMMRegister dst, XMMRegister src) { Assembler::subss(dst, src); } | |
2438 void subss(XMMRegister dst, Address src) { Assembler::subss(dst, src); } | |
4759 | 2439 void subss(XMMRegister dst, AddressLiteral src); |
0 | 2440 |
2441 void ucomiss(XMMRegister dst, XMMRegister src) { Assembler::ucomiss(dst, src); } | |
4759 | 2442 void ucomiss(XMMRegister dst, Address src) { Assembler::ucomiss(dst, src); } |
0 | 2443 void ucomiss(XMMRegister dst, AddressLiteral src); |
2444 | |
2445 void ucomisd(XMMRegister dst, XMMRegister src) { Assembler::ucomisd(dst, src); } | |
4759 | 2446 void ucomisd(XMMRegister dst, Address src) { Assembler::ucomisd(dst, src); } |
0 | 2447 void ucomisd(XMMRegister dst, AddressLiteral src); |
2448 | |
2449 // Bitwise Logical XOR of Packed Double-Precision Floating-Point Values | |
2450 void xorpd(XMMRegister dst, XMMRegister src) { Assembler::xorpd(dst, src); } | |
2451 void xorpd(XMMRegister dst, Address src) { Assembler::xorpd(dst, src); } | |
2452 void xorpd(XMMRegister dst, AddressLiteral src); | |
2453 | |
2454 // Bitwise Logical XOR of Packed Single-Precision Floating-Point Values | |
2455 void xorps(XMMRegister dst, XMMRegister src) { Assembler::xorps(dst, src); } | |
2456 void xorps(XMMRegister dst, Address src) { Assembler::xorps(dst, src); } | |
2457 void xorps(XMMRegister dst, AddressLiteral src); | |
2458 | |
4761
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2459 // AVX 3-operands instructions |
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2460 |
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2461 void vaddsd(XMMRegister dst, XMMRegister nds, XMMRegister src) { Assembler::vaddsd(dst, nds, src); } |
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2462 void vaddsd(XMMRegister dst, XMMRegister nds, Address src) { Assembler::vaddsd(dst, nds, src); } |
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2463 void vaddsd(XMMRegister dst, XMMRegister nds, AddressLiteral src); |
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2464 |
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2465 void vaddss(XMMRegister dst, XMMRegister nds, XMMRegister src) { Assembler::vaddss(dst, nds, src); } |
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2466 void vaddss(XMMRegister dst, XMMRegister nds, Address src) { Assembler::vaddss(dst, nds, src); } |
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2467 void vaddss(XMMRegister dst, XMMRegister nds, AddressLiteral src); |
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2468 |
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2469 void vandpd(XMMRegister dst, XMMRegister nds, Address src) { Assembler::vandpd(dst, nds, src); } |
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2470 void vandpd(XMMRegister dst, XMMRegister nds, AddressLiteral src); |
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2471 |
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2472 void vandps(XMMRegister dst, XMMRegister nds, Address src) { Assembler::vandps(dst, nds, src); } |
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2473 void vandps(XMMRegister dst, XMMRegister nds, AddressLiteral src); |
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2474 |
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2475 void vdivsd(XMMRegister dst, XMMRegister nds, XMMRegister src) { Assembler::vdivsd(dst, nds, src); } |
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2476 void vdivsd(XMMRegister dst, XMMRegister nds, Address src) { Assembler::vdivsd(dst, nds, src); } |
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2477 void vdivsd(XMMRegister dst, XMMRegister nds, AddressLiteral src); |
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2478 |
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2479 void vdivss(XMMRegister dst, XMMRegister nds, XMMRegister src) { Assembler::vdivss(dst, nds, src); } |
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2480 void vdivss(XMMRegister dst, XMMRegister nds, Address src) { Assembler::vdivss(dst, nds, src); } |
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2481 void vdivss(XMMRegister dst, XMMRegister nds, AddressLiteral src); |
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2482 |
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2483 void vmulsd(XMMRegister dst, XMMRegister nds, XMMRegister src) { Assembler::vmulsd(dst, nds, src); } |
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2484 void vmulsd(XMMRegister dst, XMMRegister nds, Address src) { Assembler::vmulsd(dst, nds, src); } |
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2485 void vmulsd(XMMRegister dst, XMMRegister nds, AddressLiteral src); |
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2486 |
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2487 void vmulss(XMMRegister dst, XMMRegister nds, XMMRegister src) { Assembler::vmulss(dst, nds, src); } |
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2488 void vmulss(XMMRegister dst, XMMRegister nds, Address src) { Assembler::vmulss(dst, nds, src); } |
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2489 void vmulss(XMMRegister dst, XMMRegister nds, AddressLiteral src); |
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2490 |
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2491 void vsubsd(XMMRegister dst, XMMRegister nds, XMMRegister src) { Assembler::vsubsd(dst, nds, src); } |
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2492 void vsubsd(XMMRegister dst, XMMRegister nds, Address src) { Assembler::vsubsd(dst, nds, src); } |
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2493 void vsubsd(XMMRegister dst, XMMRegister nds, AddressLiteral src); |
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2494 |
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2495 void vsubss(XMMRegister dst, XMMRegister nds, XMMRegister src) { Assembler::vsubss(dst, nds, src); } |
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2496 void vsubss(XMMRegister dst, XMMRegister nds, Address src) { Assembler::vsubss(dst, nds, src); } |
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2497 void vsubss(XMMRegister dst, XMMRegister nds, AddressLiteral src); |
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2498 |
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2499 void vxorpd(XMMRegister dst, XMMRegister nds, Address src) { Assembler::vxorpd(dst, nds, src); } |
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2500 void vxorpd(XMMRegister dst, XMMRegister nds, AddressLiteral src); |
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2501 |
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2502 void vxorps(XMMRegister dst, XMMRegister nds, Address src) { Assembler::vxorps(dst, nds, src); } |
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2503 void vxorps(XMMRegister dst, XMMRegister nds, AddressLiteral src); |
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2504 |
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2505 |
0 | 2506 // Data |
2507 | |
2415
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2508 void cmov32( Condition cc, Register dst, Address src); |
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2509 void cmov32( Condition cc, Register dst, Register src); |
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2510 |
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2511 void cmov( Condition cc, Register dst, Register src) { cmovptr(cc, dst, src); } |
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2512 |
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2513 void cmovptr(Condition cc, Register dst, Address src) { LP64_ONLY(cmovq(cc, dst, src)) NOT_LP64(cmov32(cc, dst, src)); } |
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2514 void cmovptr(Condition cc, Register dst, Register src) { LP64_ONLY(cmovq(cc, dst, src)) NOT_LP64(cmov32(cc, dst, src)); } |
304 | 2515 |
0 | 2516 void movoop(Register dst, jobject obj); |
2517 void movoop(Address dst, jobject obj); | |
2518 | |
2519 void movptr(ArrayAddress dst, Register src); | |
2520 // can this do an lea? | |
2521 void movptr(Register dst, ArrayAddress src); | |
2522 | |
304 | 2523 void movptr(Register dst, Address src); |
2524 | |
0 | 2525 void movptr(Register dst, AddressLiteral src); |
2526 | |
304 | 2527 void movptr(Register dst, intptr_t src); |
2528 void movptr(Register dst, Register src); | |
2529 void movptr(Address dst, intptr_t src); | |
2530 | |
2531 void movptr(Address dst, Register src); | |
2532 | |
3363
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2533 void movptr(Register dst, RegisterOrConstant src) { |
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2534 if (src.is_constant()) movptr(dst, src.as_constant()); |
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2535 else movptr(dst, src.as_register()); |
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|
2536 } |
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2537 |
304 | 2538 #ifdef _LP64 |
2539 // Generally the next two are only used for moving NULL | |
2540 // Although there are situations in initializing the mark word where | |
2541 // they could be used. They are dangerous. | |
2542 | |
2543 // They only exist on LP64 so that int32_t and intptr_t are not the same | |
2544 // and we have ambiguous declarations. | |
2545 | |
2546 void movptr(Address dst, int32_t imm32); | |
2547 void movptr(Register dst, int32_t imm32); | |
2548 #endif // _LP64 | |
2549 | |
0 | 2550 // to avoid hiding movl |
2551 void mov32(AddressLiteral dst, Register src); | |
2552 void mov32(Register dst, AddressLiteral src); | |
304 | 2553 |
0 | 2554 // to avoid hiding movb |
2555 void movbyte(ArrayAddress dst, int src); | |
2556 | |
2557 // Can push value or effective address | |
2558 void pushptr(AddressLiteral src); | |
2559 | |
304 | 2560 void pushptr(Address src) { LP64_ONLY(pushq(src)) NOT_LP64(pushl(src)); } |
2561 void popptr(Address src) { LP64_ONLY(popq(src)) NOT_LP64(popl(src)); } | |
2562 | |
2563 void pushoop(jobject obj); | |
2564 | |
2565 // sign extend as need a l to ptr sized element | |
2566 void movl2ptr(Register dst, Address src) { LP64_ONLY(movslq(dst, src)) NOT_LP64(movl(dst, src)); } | |
2567 void movl2ptr(Register dst, Register src) { LP64_ONLY(movslq(dst, src)) NOT_LP64(if (dst != src) movl(dst, src)); } | |
2568 | |
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2569 // IndexOf strings. |
2320
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2570 // Small strings are loaded through stack if they cross page boundary. |
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2571 void string_indexof(Register str1, Register str2, |
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2572 Register cnt1, Register cnt2, |
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2573 int int_cnt2, Register result, |
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2574 XMMRegister vec, Register tmp); |
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2575 |
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2576 // IndexOf for constant substrings with size >= 8 elements |
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2577 // which don't need to be loaded through stack. |
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2578 void string_indexofC8(Register str1, Register str2, |
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2579 Register cnt1, Register cnt2, |
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2580 int int_cnt2, Register result, |
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2581 XMMRegister vec, Register tmp); |
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2582 |
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2583 // Smallest code: we don't need to load through stack, |
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2584 // check string tail. |
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2585 |
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2586 // Compare strings. |
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2587 void string_compare(Register str1, Register str2, |
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2588 Register cnt1, Register cnt2, Register result, |
2262 | 2589 XMMRegister vec1); |
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2590 |
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2591 // Compare char[] arrays. |
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2592 void char_arrays_equals(bool is_array_equ, Register ary1, Register ary2, |
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2593 Register limit, Register result, Register chr, |
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2594 XMMRegister vec1, XMMRegister vec2); |
304 | 2595 |
1763 | 2596 // Fill primitive arrays |
2597 void generate_fill(BasicType t, bool aligned, | |
2598 Register to, Register value, Register count, | |
2599 Register rtmp, XMMRegister xtmp); | |
2600 | |
0 | 2601 #undef VIRTUAL |
2602 | |
2603 }; | |
2604 | |
2605 /** | |
2606 * class SkipIfEqual: | |
2607 * | |
2608 * Instantiating this class will result in assembly code being output that will | |
2609 * jump around any code emitted between the creation of the instance and it's | |
2610 * automatic destruction at the end of a scope block, depending on the value of | |
2611 * the flag passed to the constructor, which will be checked at run-time. | |
2612 */ | |
2613 class SkipIfEqual { | |
2614 private: | |
2615 MacroAssembler* _masm; | |
2616 Label _label; | |
2617 | |
2618 public: | |
2619 SkipIfEqual(MacroAssembler*, const bool* flag_addr, bool value); | |
2620 ~SkipIfEqual(); | |
2621 }; | |
2622 | |
2623 #ifdef ASSERT | |
2624 inline bool AbstractAssembler::pd_check_instruction_mark() { return true; } | |
2625 #endif | |
1972 | 2626 |
2627 #endif // CPU_X86_VM_ASSEMBLER_X86_HPP |