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annotate src/cpu/sparc/vm/assembler_sparc.hpp @ 1882:ee0d26abaad3
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author | kamg |
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date | Tue, 26 Oct 2010 16:48:28 -0700 |
parents | c393f046f4c5 |
children | fff777a71346 |
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0 | 1 /* |
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2 * Copyright (c) 1997, 2010, 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 | |
25 class BiasedLockingCounters; | |
26 | |
27 // <sys/trap.h> promises that the system will not use traps 16-31 | |
28 #define ST_RESERVED_FOR_USER_0 0x10 | |
29 | |
30 /* Written: David Ungar 4/19/97 */ | |
31 | |
32 // Contains all the definitions needed for sparc assembly code generation. | |
33 | |
34 // Register aliases for parts of the system: | |
35 | |
36 // 64 bit values can be kept in g1-g5, o1-o5 and o7 and all 64 bits are safe | |
37 // across context switches in V8+ ABI. Of course, there are no 64 bit regs | |
38 // in V8 ABI. All 64 bits are preserved in V9 ABI for all registers. | |
39 | |
40 // g2-g4 are scratch registers called "application globals". Their | |
41 // meaning is reserved to the "compilation system"--which means us! | |
42 // They are are not supposed to be touched by ordinary C code, although | |
43 // highly-optimized C code might steal them for temps. They are safe | |
44 // across thread switches, and the ABI requires that they be safe | |
45 // across function calls. | |
46 // | |
47 // g1 and g3 are touched by more modules. V8 allows g1 to be clobbered | |
48 // across func calls, and V8+ also allows g5 to be clobbered across | |
49 // func calls. Also, g1 and g5 can get touched while doing shared | |
50 // library loading. | |
51 // | |
52 // We must not touch g7 (it is the thread-self register) and g6 is | |
53 // reserved for certain tools. g0, of course, is always zero. | |
54 // | |
55 // (Sources: SunSoft Compilers Group, thread library engineers.) | |
56 | |
57 // %%%% The interpreter should be revisited to reduce global scratch regs. | |
58 | |
59 // This global always holds the current JavaThread pointer: | |
60 | |
61 REGISTER_DECLARATION(Register, G2_thread , G2); | |
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62 REGISTER_DECLARATION(Register, G6_heapbase , G6); |
0 | 63 |
64 // The following globals are part of the Java calling convention: | |
65 | |
66 REGISTER_DECLARATION(Register, G5_method , G5); | |
67 REGISTER_DECLARATION(Register, G5_megamorphic_method , G5_method); | |
68 REGISTER_DECLARATION(Register, G5_inline_cache_reg , G5_method); | |
69 | |
70 // The following globals are used for the new C1 & interpreter calling convention: | |
71 REGISTER_DECLARATION(Register, Gargs , G4); // pointing to the last argument | |
72 | |
73 // This local is used to preserve G2_thread in the interpreter and in stubs: | |
74 REGISTER_DECLARATION(Register, L7_thread_cache , L7); | |
75 | |
76 // These globals are used as scratch registers in the interpreter: | |
77 | |
78 REGISTER_DECLARATION(Register, Gframe_size , G1); // SAME REG as G1_scratch | |
79 REGISTER_DECLARATION(Register, G1_scratch , G1); // also SAME | |
80 REGISTER_DECLARATION(Register, G3_scratch , G3); | |
81 REGISTER_DECLARATION(Register, G4_scratch , G4); | |
82 | |
83 // These globals are used as short-lived scratch registers in the compiler: | |
84 | |
85 REGISTER_DECLARATION(Register, Gtemp , G5); | |
86 | |
710 | 87 // JSR 292 fixed register usages: |
88 REGISTER_DECLARATION(Register, G5_method_type , G5); | |
89 REGISTER_DECLARATION(Register, G3_method_handle , G3); | |
1564 | 90 REGISTER_DECLARATION(Register, L7_mh_SP_save , L7); |
710 | 91 |
0 | 92 // The compiler requires that G5_megamorphic_method is G5_inline_cache_klass, |
93 // because a single patchable "set" instruction (NativeMovConstReg, | |
94 // or NativeMovConstPatching for compiler1) instruction | |
95 // serves to set up either quantity, depending on whether the compiled | |
96 // call site is an inline cache or is megamorphic. See the function | |
97 // CompiledIC::set_to_megamorphic. | |
98 // | |
710 | 99 // If a inline cache targets an interpreted method, then the |
100 // G5 register will be used twice during the call. First, | |
101 // the call site will be patched to load a compiledICHolder | |
102 // into G5. (This is an ordered pair of ic_klass, method.) | |
103 // The c2i adapter will first check the ic_klass, then load | |
104 // G5_method with the method part of the pair just before | |
105 // jumping into the interpreter. | |
0 | 106 // |
107 // Note that G5_method is only the method-self for the interpreter, | |
108 // and is logically unrelated to G5_megamorphic_method. | |
109 // | |
110 // Invariants on G2_thread (the JavaThread pointer): | |
111 // - it should not be used for any other purpose anywhere | |
112 // - it must be re-initialized by StubRoutines::call_stub() | |
113 // - it must be preserved around every use of call_VM | |
114 | |
115 // We can consider using g2/g3/g4 to cache more values than the | |
116 // JavaThread, such as the card-marking base or perhaps pointers into | |
117 // Eden. It's something of a waste to use them as scratch temporaries, | |
118 // since they are not supposed to be volatile. (Of course, if we find | |
119 // that Java doesn't benefit from application globals, then we can just | |
120 // use them as ordinary temporaries.) | |
121 // | |
122 // Since g1 and g5 (and/or g6) are the volatile (caller-save) registers, | |
123 // it makes sense to use them routinely for procedure linkage, | |
124 // whenever the On registers are not applicable. Examples: G5_method, | |
125 // G5_inline_cache_klass, and a double handful of miscellaneous compiler | |
126 // stubs. This means that compiler stubs, etc., should be kept to a | |
127 // maximum of two or three G-register arguments. | |
128 | |
129 | |
130 // stub frames | |
131 | |
132 REGISTER_DECLARATION(Register, Lentry_args , L0); // pointer to args passed to callee (interpreter) not stub itself | |
133 | |
134 // Interpreter frames | |
135 | |
136 #ifdef CC_INTERP | |
137 REGISTER_DECLARATION(Register, Lstate , L0); // interpreter state object pointer | |
138 REGISTER_DECLARATION(Register, L1_scratch , L1); // scratch | |
139 REGISTER_DECLARATION(Register, Lmirror , L1); // mirror (for native methods only) | |
140 REGISTER_DECLARATION(Register, L2_scratch , L2); | |
141 REGISTER_DECLARATION(Register, L3_scratch , L3); | |
142 REGISTER_DECLARATION(Register, L4_scratch , L4); | |
143 REGISTER_DECLARATION(Register, Lscratch , L5); // C1 uses | |
144 REGISTER_DECLARATION(Register, Lscratch2 , L6); // C1 uses | |
145 REGISTER_DECLARATION(Register, L7_scratch , L7); // constant pool cache | |
146 REGISTER_DECLARATION(Register, O5_savedSP , O5); | |
147 REGISTER_DECLARATION(Register, I5_savedSP , I5); // Saved SP before bumping for locals. This is simply | |
148 // a copy SP, so in 64-bit it's a biased value. The bias | |
149 // is added and removed as needed in the frame code. | |
150 // Interface to signature handler | |
151 REGISTER_DECLARATION(Register, Llocals , L7); // pointer to locals for signature handler | |
152 REGISTER_DECLARATION(Register, Lmethod , L6); // methodOop when calling signature handler | |
153 | |
154 #else | |
155 REGISTER_DECLARATION(Register, Lesp , L0); // expression stack pointer | |
156 REGISTER_DECLARATION(Register, Lbcp , L1); // pointer to next bytecode | |
157 REGISTER_DECLARATION(Register, Lmethod , L2); | |
158 REGISTER_DECLARATION(Register, Llocals , L3); | |
159 REGISTER_DECLARATION(Register, Largs , L3); // pointer to locals for signature handler | |
160 // must match Llocals in asm interpreter | |
161 REGISTER_DECLARATION(Register, Lmonitors , L4); | |
162 REGISTER_DECLARATION(Register, Lbyte_code , L5); | |
163 // When calling out from the interpreter we record SP so that we can remove any extra stack | |
164 // space allocated during adapter transitions. This register is only live from the point | |
165 // of the call until we return. | |
166 REGISTER_DECLARATION(Register, Llast_SP , L5); | |
167 REGISTER_DECLARATION(Register, Lscratch , L5); | |
168 REGISTER_DECLARATION(Register, Lscratch2 , L6); | |
169 REGISTER_DECLARATION(Register, LcpoolCache , L6); // constant pool cache | |
170 | |
171 REGISTER_DECLARATION(Register, O5_savedSP , O5); | |
172 REGISTER_DECLARATION(Register, I5_savedSP , I5); // Saved SP before bumping for locals. This is simply | |
173 // a copy SP, so in 64-bit it's a biased value. The bias | |
174 // is added and removed as needed in the frame code. | |
175 REGISTER_DECLARATION(Register, IdispatchTables , I4); // Base address of the bytecode dispatch tables | |
176 REGISTER_DECLARATION(Register, IdispatchAddress , I3); // Register which saves the dispatch address for each bytecode | |
177 REGISTER_DECLARATION(Register, ImethodDataPtr , I2); // Pointer to the current method data | |
178 #endif /* CC_INTERP */ | |
179 | |
180 // NOTE: Lscratch2 and LcpoolCache point to the same registers in | |
181 // the interpreter code. If Lscratch2 needs to be used for some | |
182 // purpose than LcpoolCache should be restore after that for | |
183 // the interpreter to work right | |
184 // (These assignments must be compatible with L7_thread_cache; see above.) | |
185 | |
186 // Since Lbcp points into the middle of the method object, | |
187 // it is temporarily converted into a "bcx" during GC. | |
188 | |
189 // Exception processing | |
190 // These registers are passed into exception handlers. | |
191 // All exception handlers require the exception object being thrown. | |
192 // In addition, an nmethod's exception handler must be passed | |
193 // the address of the call site within the nmethod, to allow | |
194 // proper selection of the applicable catch block. | |
195 // (Interpreter frames use their own bcp() for this purpose.) | |
196 // | |
197 // The Oissuing_pc value is not always needed. When jumping to a | |
198 // handler that is known to be interpreted, the Oissuing_pc value can be | |
199 // omitted. An actual catch block in compiled code receives (from its | |
200 // nmethod's exception handler) the thrown exception in the Oexception, | |
201 // but it doesn't need the Oissuing_pc. | |
202 // | |
203 // If an exception handler (either interpreted or compiled) | |
204 // discovers there is no applicable catch block, it updates | |
205 // the Oissuing_pc to the continuation PC of its own caller, | |
206 // pops back to that caller's stack frame, and executes that | |
207 // caller's exception handler. Obviously, this process will | |
208 // iterate until the control stack is popped back to a method | |
209 // containing an applicable catch block. A key invariant is | |
210 // that the Oissuing_pc value is always a value local to | |
211 // the method whose exception handler is currently executing. | |
212 // | |
213 // Note: The issuing PC value is __not__ a raw return address (I7 value). | |
214 // It is a "return pc", the address __following__ the call. | |
215 // Raw return addresses are converted to issuing PCs by frame::pc(), | |
216 // or by stubs. Issuing PCs can be used directly with PC range tables. | |
217 // | |
218 REGISTER_DECLARATION(Register, Oexception , O0); // exception being thrown | |
219 REGISTER_DECLARATION(Register, Oissuing_pc , O1); // where the exception is coming from | |
220 | |
221 | |
222 // These must occur after the declarations above | |
223 #ifndef DONT_USE_REGISTER_DEFINES | |
224 | |
225 #define Gthread AS_REGISTER(Register, Gthread) | |
226 #define Gmethod AS_REGISTER(Register, Gmethod) | |
227 #define Gmegamorphic_method AS_REGISTER(Register, Gmegamorphic_method) | |
228 #define Ginline_cache_reg AS_REGISTER(Register, Ginline_cache_reg) | |
229 #define Gargs AS_REGISTER(Register, Gargs) | |
230 #define Lthread_cache AS_REGISTER(Register, Lthread_cache) | |
231 #define Gframe_size AS_REGISTER(Register, Gframe_size) | |
232 #define Gtemp AS_REGISTER(Register, Gtemp) | |
233 | |
234 #ifdef CC_INTERP | |
235 #define Lstate AS_REGISTER(Register, Lstate) | |
236 #define Lesp AS_REGISTER(Register, Lesp) | |
237 #define L1_scratch AS_REGISTER(Register, L1_scratch) | |
238 #define Lmirror AS_REGISTER(Register, Lmirror) | |
239 #define L2_scratch AS_REGISTER(Register, L2_scratch) | |
240 #define L3_scratch AS_REGISTER(Register, L3_scratch) | |
241 #define L4_scratch AS_REGISTER(Register, L4_scratch) | |
242 #define Lscratch AS_REGISTER(Register, Lscratch) | |
243 #define Lscratch2 AS_REGISTER(Register, Lscratch2) | |
244 #define L7_scratch AS_REGISTER(Register, L7_scratch) | |
245 #define Ostate AS_REGISTER(Register, Ostate) | |
246 #else | |
247 #define Lesp AS_REGISTER(Register, Lesp) | |
248 #define Lbcp AS_REGISTER(Register, Lbcp) | |
249 #define Lmethod AS_REGISTER(Register, Lmethod) | |
250 #define Llocals AS_REGISTER(Register, Llocals) | |
251 #define Lmonitors AS_REGISTER(Register, Lmonitors) | |
252 #define Lbyte_code AS_REGISTER(Register, Lbyte_code) | |
253 #define Lscratch AS_REGISTER(Register, Lscratch) | |
254 #define Lscratch2 AS_REGISTER(Register, Lscratch2) | |
255 #define LcpoolCache AS_REGISTER(Register, LcpoolCache) | |
256 #endif /* ! CC_INTERP */ | |
257 | |
258 #define Lentry_args AS_REGISTER(Register, Lentry_args) | |
259 #define I5_savedSP AS_REGISTER(Register, I5_savedSP) | |
260 #define O5_savedSP AS_REGISTER(Register, O5_savedSP) | |
261 #define IdispatchAddress AS_REGISTER(Register, IdispatchAddress) | |
262 #define ImethodDataPtr AS_REGISTER(Register, ImethodDataPtr) | |
263 #define IdispatchTables AS_REGISTER(Register, IdispatchTables) | |
264 | |
265 #define Oexception AS_REGISTER(Register, Oexception) | |
266 #define Oissuing_pc AS_REGISTER(Register, Oissuing_pc) | |
267 | |
268 | |
269 #endif | |
270 | |
271 // Address is an abstraction used to represent a memory location. | |
272 // | |
273 // Note: A register location is represented via a Register, not | |
274 // via an address for efficiency & simplicity reasons. | |
275 | |
276 class Address VALUE_OBJ_CLASS_SPEC { | |
277 private: | |
727 | 278 Register _base; // Base register. |
279 RegisterOrConstant _index_or_disp; // Index register or constant displacement. | |
280 RelocationHolder _rspec; | |
281 | |
282 public: | |
283 Address() : _base(noreg), _index_or_disp(noreg) {} | |
284 | |
285 Address(Register base, RegisterOrConstant index_or_disp) | |
286 : _base(base), | |
287 _index_or_disp(index_or_disp) { | |
288 } | |
289 | |
290 Address(Register base, Register index) | |
291 : _base(base), | |
292 _index_or_disp(index) { | |
293 } | |
294 | |
295 Address(Register base, int disp) | |
296 : _base(base), | |
297 _index_or_disp(disp) { | |
298 } | |
299 | |
300 #ifdef ASSERT | |
301 // ByteSize is only a class when ASSERT is defined, otherwise it's an int. | |
302 Address(Register base, ByteSize disp) | |
303 : _base(base), | |
304 _index_or_disp(in_bytes(disp)) { | |
305 } | |
0 | 306 #endif |
727 | 307 |
308 // accessors | |
309 Register base() const { return _base; } | |
310 Register index() const { return _index_or_disp.as_register(); } | |
311 int disp() const { return _index_or_disp.as_constant(); } | |
312 | |
313 bool has_index() const { return _index_or_disp.is_register(); } | |
314 bool has_disp() const { return _index_or_disp.is_constant(); } | |
315 | |
316 const relocInfo::relocType rtype() { return _rspec.type(); } | |
317 const RelocationHolder& rspec() { return _rspec; } | |
318 | |
319 RelocationHolder rspec(int offset) const { | |
320 return offset == 0 ? _rspec : _rspec.plus(offset); | |
321 } | |
322 | |
323 inline bool is_simm13(int offset = 0); // check disp+offset for overflow | |
324 | |
325 Address plus_disp(int plusdisp) const { // bump disp by a small amount | |
326 assert(_index_or_disp.is_constant(), "must have a displacement"); | |
327 Address a(base(), disp() + plusdisp); | |
328 return a; | |
329 } | |
330 | |
331 Address after_save() const { | |
332 Address a = (*this); | |
333 a._base = a._base->after_save(); | |
334 return a; | |
335 } | |
336 | |
337 Address after_restore() const { | |
338 Address a = (*this); | |
339 a._base = a._base->after_restore(); | |
340 return a; | |
341 } | |
342 | |
343 // Convert the raw encoding form into the form expected by the | |
344 // constructor for Address. | |
345 static Address make_raw(int base, int index, int scale, int disp, bool disp_is_oop); | |
346 | |
347 friend class Assembler; | |
348 }; | |
349 | |
350 | |
351 class AddressLiteral VALUE_OBJ_CLASS_SPEC { | |
352 private: | |
353 address _address; | |
354 RelocationHolder _rspec; | |
355 | |
356 RelocationHolder rspec_from_rtype(relocInfo::relocType rtype, address addr) { | |
357 switch (rtype) { | |
0 | 358 case relocInfo::external_word_type: |
727 | 359 return external_word_Relocation::spec(addr); |
0 | 360 case relocInfo::internal_word_type: |
727 | 361 return internal_word_Relocation::spec(addr); |
0 | 362 #ifdef _LP64 |
363 case relocInfo::opt_virtual_call_type: | |
364 return opt_virtual_call_Relocation::spec(); | |
365 case relocInfo::static_call_type: | |
366 return static_call_Relocation::spec(); | |
367 case relocInfo::runtime_call_type: | |
368 return runtime_call_Relocation::spec(); | |
369 #endif | |
370 case relocInfo::none: | |
371 return RelocationHolder(); | |
372 default: | |
373 ShouldNotReachHere(); | |
374 return RelocationHolder(); | |
375 } | |
376 } | |
377 | |
727 | 378 protected: |
379 // creation | |
380 AddressLiteral() : _address(NULL), _rspec(NULL) {} | |
381 | |
0 | 382 public: |
727 | 383 AddressLiteral(address addr, RelocationHolder const& rspec) |
384 : _address(addr), | |
385 _rspec(rspec) {} | |
386 | |
387 // Some constructors to avoid casting at the call site. | |
388 AddressLiteral(jobject obj, RelocationHolder const& rspec) | |
389 : _address((address) obj), | |
390 _rspec(rspec) {} | |
391 | |
392 AddressLiteral(intptr_t value, RelocationHolder const& rspec) | |
393 : _address((address) value), | |
394 _rspec(rspec) {} | |
395 | |
396 AddressLiteral(address addr, relocInfo::relocType rtype = relocInfo::none) | |
397 : _address((address) addr), | |
398 _rspec(rspec_from_rtype(rtype, (address) addr)) {} | |
399 | |
400 // Some constructors to avoid casting at the call site. | |
401 AddressLiteral(address* addr, relocInfo::relocType rtype = relocInfo::none) | |
402 : _address((address) addr), | |
403 _rspec(rspec_from_rtype(rtype, (address) addr)) {} | |
404 | |
405 AddressLiteral(bool* addr, relocInfo::relocType rtype = relocInfo::none) | |
406 : _address((address) addr), | |
407 _rspec(rspec_from_rtype(rtype, (address) addr)) {} | |
408 | |
409 AddressLiteral(const bool* addr, relocInfo::relocType rtype = relocInfo::none) | |
410 : _address((address) addr), | |
411 _rspec(rspec_from_rtype(rtype, (address) addr)) {} | |
412 | |
413 AddressLiteral(signed char* addr, relocInfo::relocType rtype = relocInfo::none) | |
414 : _address((address) addr), | |
415 _rspec(rspec_from_rtype(rtype, (address) addr)) {} | |
416 | |
417 AddressLiteral(int* addr, relocInfo::relocType rtype = relocInfo::none) | |
418 : _address((address) addr), | |
419 _rspec(rspec_from_rtype(rtype, (address) addr)) {} | |
420 | |
421 AddressLiteral(intptr_t addr, relocInfo::relocType rtype = relocInfo::none) | |
422 : _address((address) addr), | |
423 _rspec(rspec_from_rtype(rtype, (address) addr)) {} | |
424 | |
0 | 425 #ifdef _LP64 |
727 | 426 // 32-bit complains about a multiple declaration for int*. |
427 AddressLiteral(intptr_t* addr, relocInfo::relocType rtype = relocInfo::none) | |
428 : _address((address) addr), | |
429 _rspec(rspec_from_rtype(rtype, (address) addr)) {} | |
0 | 430 #endif |
727 | 431 |
432 AddressLiteral(oop addr, relocInfo::relocType rtype = relocInfo::none) | |
433 : _address((address) addr), | |
434 _rspec(rspec_from_rtype(rtype, (address) addr)) {} | |
435 | |
436 AddressLiteral(float* addr, relocInfo::relocType rtype = relocInfo::none) | |
437 : _address((address) addr), | |
438 _rspec(rspec_from_rtype(rtype, (address) addr)) {} | |
439 | |
440 AddressLiteral(double* addr, relocInfo::relocType rtype = relocInfo::none) | |
441 : _address((address) addr), | |
442 _rspec(rspec_from_rtype(rtype, (address) addr)) {} | |
443 | |
444 intptr_t value() const { return (intptr_t) _address; } | |
445 int low10() const; | |
446 | |
447 const relocInfo::relocType rtype() const { return _rspec.type(); } | |
448 const RelocationHolder& rspec() const { return _rspec; } | |
449 | |
450 RelocationHolder rspec(int offset) const { | |
0 | 451 return offset == 0 ? _rspec : _rspec.plus(offset); |
452 } | |
453 }; | |
454 | |
455 | |
456 inline Address RegisterImpl::address_in_saved_window() const { | |
727 | 457 return (Address(SP, (sp_offset_in_saved_window() * wordSize) + STACK_BIAS)); |
0 | 458 } |
459 | |
460 | |
461 | |
462 // Argument is an abstraction used to represent an outgoing | |
463 // actual argument or an incoming formal parameter, whether | |
464 // it resides in memory or in a register, in a manner consistent | |
465 // with the SPARC Application Binary Interface, or ABI. This is | |
466 // often referred to as the native or C calling convention. | |
467 | |
468 class Argument VALUE_OBJ_CLASS_SPEC { | |
469 private: | |
470 int _number; | |
471 bool _is_in; | |
472 | |
473 public: | |
474 #ifdef _LP64 | |
475 enum { | |
476 n_register_parameters = 6, // only 6 registers may contain integer parameters | |
477 n_float_register_parameters = 16 // Can have up to 16 floating registers | |
478 }; | |
479 #else | |
480 enum { | |
481 n_register_parameters = 6 // only 6 registers may contain integer parameters | |
482 }; | |
483 #endif | |
484 | |
485 // creation | |
486 Argument(int number, bool is_in) : _number(number), _is_in(is_in) {} | |
487 | |
488 int number() const { return _number; } | |
489 bool is_in() const { return _is_in; } | |
490 bool is_out() const { return !is_in(); } | |
491 | |
492 Argument successor() const { return Argument(number() + 1, is_in()); } | |
493 Argument as_in() const { return Argument(number(), true ); } | |
494 Argument as_out() const { return Argument(number(), false); } | |
495 | |
496 // locating register-based arguments: | |
497 bool is_register() const { return _number < n_register_parameters; } | |
498 | |
499 #ifdef _LP64 | |
500 // locating Floating Point register-based arguments: | |
501 bool is_float_register() const { return _number < n_float_register_parameters; } | |
502 | |
503 FloatRegister as_float_register() const { | |
504 assert(is_float_register(), "must be a register argument"); | |
505 return as_FloatRegister(( number() *2 ) + 1); | |
506 } | |
507 FloatRegister as_double_register() const { | |
508 assert(is_float_register(), "must be a register argument"); | |
509 return as_FloatRegister(( number() *2 )); | |
510 } | |
511 #endif | |
512 | |
513 Register as_register() const { | |
514 assert(is_register(), "must be a register argument"); | |
515 return is_in() ? as_iRegister(number()) : as_oRegister(number()); | |
516 } | |
517 | |
518 // locating memory-based arguments | |
519 Address as_address() const { | |
520 assert(!is_register(), "must be a memory argument"); | |
521 return address_in_frame(); | |
522 } | |
523 | |
524 // When applied to a register-based argument, give the corresponding address | |
525 // into the 6-word area "into which callee may store register arguments" | |
526 // (This is a different place than the corresponding register-save area location.) | |
727 | 527 Address address_in_frame() const; |
0 | 528 |
529 // debugging | |
530 const char* name() const; | |
531 | |
532 friend class Assembler; | |
533 }; | |
534 | |
535 | |
536 // The SPARC Assembler: Pure assembler doing NO optimizations on the instruction | |
537 // level; i.e., what you write | |
538 // is what you get. The Assembler is generating code into a CodeBuffer. | |
539 | |
540 class Assembler : public AbstractAssembler { | |
541 protected: | |
542 | |
543 static void print_instruction(int inst); | |
544 static int patched_branch(int dest_pos, int inst, int inst_pos); | |
545 static int branch_destination(int inst, int pos); | |
546 | |
547 | |
548 friend class AbstractAssembler; | |
727 | 549 friend class AddressLiteral; |
0 | 550 |
551 // code patchers need various routines like inv_wdisp() | |
552 friend class NativeInstruction; | |
553 friend class NativeGeneralJump; | |
554 friend class Relocation; | |
555 friend class Label; | |
556 | |
557 public: | |
558 // op carries format info; see page 62 & 267 | |
559 | |
560 enum ops { | |
561 call_op = 1, // fmt 1 | |
562 branch_op = 0, // also sethi (fmt2) | |
563 arith_op = 2, // fmt 3, arith & misc | |
564 ldst_op = 3 // fmt 3, load/store | |
565 }; | |
566 | |
567 enum op2s { | |
568 bpr_op2 = 3, | |
569 fb_op2 = 6, | |
570 fbp_op2 = 5, | |
571 br_op2 = 2, | |
572 bp_op2 = 1, | |
573 cb_op2 = 7, // V8 | |
574 sethi_op2 = 4 | |
575 }; | |
576 | |
577 enum op3s { | |
578 // selected op3s | |
579 add_op3 = 0x00, | |
580 and_op3 = 0x01, | |
581 or_op3 = 0x02, | |
582 xor_op3 = 0x03, | |
583 sub_op3 = 0x04, | |
584 andn_op3 = 0x05, | |
585 orn_op3 = 0x06, | |
586 xnor_op3 = 0x07, | |
587 addc_op3 = 0x08, | |
588 mulx_op3 = 0x09, | |
589 umul_op3 = 0x0a, | |
590 smul_op3 = 0x0b, | |
591 subc_op3 = 0x0c, | |
592 udivx_op3 = 0x0d, | |
593 udiv_op3 = 0x0e, | |
594 sdiv_op3 = 0x0f, | |
595 | |
596 addcc_op3 = 0x10, | |
597 andcc_op3 = 0x11, | |
598 orcc_op3 = 0x12, | |
599 xorcc_op3 = 0x13, | |
600 subcc_op3 = 0x14, | |
601 andncc_op3 = 0x15, | |
602 orncc_op3 = 0x16, | |
603 xnorcc_op3 = 0x17, | |
604 addccc_op3 = 0x18, | |
605 umulcc_op3 = 0x1a, | |
606 smulcc_op3 = 0x1b, | |
607 subccc_op3 = 0x1c, | |
608 udivcc_op3 = 0x1e, | |
609 sdivcc_op3 = 0x1f, | |
610 | |
611 taddcc_op3 = 0x20, | |
612 tsubcc_op3 = 0x21, | |
613 taddcctv_op3 = 0x22, | |
614 tsubcctv_op3 = 0x23, | |
615 mulscc_op3 = 0x24, | |
616 sll_op3 = 0x25, | |
617 sllx_op3 = 0x25, | |
618 srl_op3 = 0x26, | |
619 srlx_op3 = 0x26, | |
620 sra_op3 = 0x27, | |
621 srax_op3 = 0x27, | |
622 rdreg_op3 = 0x28, | |
623 membar_op3 = 0x28, | |
624 | |
625 flushw_op3 = 0x2b, | |
626 movcc_op3 = 0x2c, | |
627 sdivx_op3 = 0x2d, | |
628 popc_op3 = 0x2e, | |
629 movr_op3 = 0x2f, | |
630 | |
631 sir_op3 = 0x30, | |
632 wrreg_op3 = 0x30, | |
633 saved_op3 = 0x31, | |
634 | |
635 fpop1_op3 = 0x34, | |
636 fpop2_op3 = 0x35, | |
637 impdep1_op3 = 0x36, | |
638 impdep2_op3 = 0x37, | |
639 jmpl_op3 = 0x38, | |
640 rett_op3 = 0x39, | |
641 trap_op3 = 0x3a, | |
642 flush_op3 = 0x3b, | |
643 save_op3 = 0x3c, | |
644 restore_op3 = 0x3d, | |
645 done_op3 = 0x3e, | |
646 retry_op3 = 0x3e, | |
647 | |
648 lduw_op3 = 0x00, | |
649 ldub_op3 = 0x01, | |
650 lduh_op3 = 0x02, | |
651 ldd_op3 = 0x03, | |
652 stw_op3 = 0x04, | |
653 stb_op3 = 0x05, | |
654 sth_op3 = 0x06, | |
655 std_op3 = 0x07, | |
656 ldsw_op3 = 0x08, | |
657 ldsb_op3 = 0x09, | |
658 ldsh_op3 = 0x0a, | |
659 ldx_op3 = 0x0b, | |
660 | |
661 ldstub_op3 = 0x0d, | |
662 stx_op3 = 0x0e, | |
663 swap_op3 = 0x0f, | |
664 | |
665 stwa_op3 = 0x14, | |
666 stxa_op3 = 0x1e, | |
667 | |
668 ldf_op3 = 0x20, | |
669 ldfsr_op3 = 0x21, | |
670 ldqf_op3 = 0x22, | |
671 lddf_op3 = 0x23, | |
672 stf_op3 = 0x24, | |
673 stfsr_op3 = 0x25, | |
674 stqf_op3 = 0x26, | |
675 stdf_op3 = 0x27, | |
676 | |
677 prefetch_op3 = 0x2d, | |
678 | |
679 | |
680 ldc_op3 = 0x30, | |
681 ldcsr_op3 = 0x31, | |
682 lddc_op3 = 0x33, | |
683 stc_op3 = 0x34, | |
684 stcsr_op3 = 0x35, | |
685 stdcq_op3 = 0x36, | |
686 stdc_op3 = 0x37, | |
687 | |
688 casa_op3 = 0x3c, | |
689 casxa_op3 = 0x3e, | |
690 | |
691 alt_bit_op3 = 0x10, | |
692 cc_bit_op3 = 0x10 | |
693 }; | |
694 | |
695 enum opfs { | |
696 // selected opfs | |
697 fmovs_opf = 0x01, | |
698 fmovd_opf = 0x02, | |
699 | |
700 fnegs_opf = 0x05, | |
701 fnegd_opf = 0x06, | |
702 | |
703 fadds_opf = 0x41, | |
704 faddd_opf = 0x42, | |
705 fsubs_opf = 0x45, | |
706 fsubd_opf = 0x46, | |
707 | |
708 fmuls_opf = 0x49, | |
709 fmuld_opf = 0x4a, | |
710 fdivs_opf = 0x4d, | |
711 fdivd_opf = 0x4e, | |
712 | |
713 fcmps_opf = 0x51, | |
714 fcmpd_opf = 0x52, | |
715 | |
716 fstox_opf = 0x81, | |
717 fdtox_opf = 0x82, | |
718 fxtos_opf = 0x84, | |
719 fxtod_opf = 0x88, | |
720 fitos_opf = 0xc4, | |
721 fdtos_opf = 0xc6, | |
722 fitod_opf = 0xc8, | |
723 fstod_opf = 0xc9, | |
724 fstoi_opf = 0xd1, | |
725 fdtoi_opf = 0xd2 | |
726 }; | |
727 | |
728 enum RCondition { rc_z = 1, rc_lez = 2, rc_lz = 3, rc_nz = 5, rc_gz = 6, rc_gez = 7 }; | |
729 | |
730 enum Condition { | |
731 // for FBfcc & FBPfcc instruction | |
732 f_never = 0, | |
733 f_notEqual = 1, | |
734 f_notZero = 1, | |
735 f_lessOrGreater = 2, | |
736 f_unorderedOrLess = 3, | |
737 f_less = 4, | |
738 f_unorderedOrGreater = 5, | |
739 f_greater = 6, | |
740 f_unordered = 7, | |
741 f_always = 8, | |
742 f_equal = 9, | |
743 f_zero = 9, | |
744 f_unorderedOrEqual = 10, | |
745 f_greaterOrEqual = 11, | |
746 f_unorderedOrGreaterOrEqual = 12, | |
747 f_lessOrEqual = 13, | |
748 f_unorderedOrLessOrEqual = 14, | |
749 f_ordered = 15, | |
750 | |
751 // V8 coproc, pp 123 v8 manual | |
752 | |
753 cp_always = 8, | |
754 cp_never = 0, | |
755 cp_3 = 7, | |
756 cp_2 = 6, | |
757 cp_2or3 = 5, | |
758 cp_1 = 4, | |
759 cp_1or3 = 3, | |
760 cp_1or2 = 2, | |
761 cp_1or2or3 = 1, | |
762 cp_0 = 9, | |
763 cp_0or3 = 10, | |
764 cp_0or2 = 11, | |
765 cp_0or2or3 = 12, | |
766 cp_0or1 = 13, | |
767 cp_0or1or3 = 14, | |
768 cp_0or1or2 = 15, | |
769 | |
770 | |
771 // for integers | |
772 | |
773 never = 0, | |
774 equal = 1, | |
775 zero = 1, | |
776 lessEqual = 2, | |
777 less = 3, | |
778 lessEqualUnsigned = 4, | |
779 lessUnsigned = 5, | |
780 carrySet = 5, | |
781 negative = 6, | |
782 overflowSet = 7, | |
783 always = 8, | |
784 notEqual = 9, | |
785 notZero = 9, | |
786 greater = 10, | |
787 greaterEqual = 11, | |
788 greaterUnsigned = 12, | |
789 greaterEqualUnsigned = 13, | |
790 carryClear = 13, | |
791 positive = 14, | |
792 overflowClear = 15 | |
793 }; | |
794 | |
795 enum CC { | |
796 icc = 0, xcc = 2, | |
797 // ptr_cc is the correct condition code for a pointer or intptr_t: | |
798 ptr_cc = NOT_LP64(icc) LP64_ONLY(xcc), | |
799 fcc0 = 0, fcc1 = 1, fcc2 = 2, fcc3 = 3 | |
800 }; | |
801 | |
802 enum PrefetchFcn { | |
803 severalReads = 0, oneRead = 1, severalWritesAndPossiblyReads = 2, oneWrite = 3, page = 4 | |
804 }; | |
805 | |
806 public: | |
807 // Helper functions for groups of instructions | |
808 | |
809 enum Predict { pt = 1, pn = 0 }; // pt = predict taken | |
810 | |
811 enum Membar_mask_bits { // page 184, v9 | |
812 StoreStore = 1 << 3, | |
813 LoadStore = 1 << 2, | |
814 StoreLoad = 1 << 1, | |
815 LoadLoad = 1 << 0, | |
816 | |
817 Sync = 1 << 6, | |
818 MemIssue = 1 << 5, | |
819 Lookaside = 1 << 4 | |
820 }; | |
821 | |
822 // test if x is within signed immediate range for nbits | |
823 static bool is_simm(int x, int nbits) { return -( 1 << nbits-1 ) <= x && x < ( 1 << nbits-1 ); } | |
824 | |
825 // test if -4096 <= x <= 4095 | |
826 static bool is_simm13(int x) { return is_simm(x, 13); } | |
827 | |
1848 | 828 // test if label is in simm16 range in words (wdisp16). |
829 bool is_in_wdisp16_range(Label& L) { | |
830 intptr_t d = intptr_t(pc()) - intptr_t(target(L)); | |
831 return is_simm(d, 18); | |
832 } | |
833 | |
0 | 834 enum ASIs { // page 72, v9 |
835 ASI_PRIMARY = 0x80, | |
836 ASI_PRIMARY_LITTLE = 0x88 | |
837 // add more from book as needed | |
838 }; | |
839 | |
840 protected: | |
841 // helpers | |
842 | |
843 // x is supposed to fit in a field "nbits" wide | |
844 // and be sign-extended. Check the range. | |
845 | |
846 static void assert_signed_range(intptr_t x, int nbits) { | |
847 assert( nbits == 32 | |
848 || -(1 << nbits-1) <= x && x < ( 1 << nbits-1), | |
849 "value out of range"); | |
850 } | |
851 | |
852 static void assert_signed_word_disp_range(intptr_t x, int nbits) { | |
853 assert( (x & 3) == 0, "not word aligned"); | |
854 assert_signed_range(x, nbits + 2); | |
855 } | |
856 | |
857 static void assert_unsigned_const(int x, int nbits) { | |
858 assert( juint(x) < juint(1 << nbits), "unsigned constant out of range"); | |
859 } | |
860 | |
861 // fields: note bits numbered from LSB = 0, | |
862 // fields known by inclusive bit range | |
863 | |
864 static int fmask(juint hi_bit, juint lo_bit) { | |
865 assert( hi_bit >= lo_bit && 0 <= lo_bit && hi_bit < 32, "bad bits"); | |
866 return (1 << ( hi_bit-lo_bit + 1 )) - 1; | |
867 } | |
868 | |
869 // inverse of u_field | |
870 | |
871 static int inv_u_field(int x, int hi_bit, int lo_bit) { | |
872 juint r = juint(x) >> lo_bit; | |
873 r &= fmask( hi_bit, lo_bit); | |
874 return int(r); | |
875 } | |
876 | |
877 | |
878 // signed version: extract from field and sign-extend | |
879 | |
880 static int inv_s_field(int x, int hi_bit, int lo_bit) { | |
881 int sign_shift = 31 - hi_bit; | |
882 return inv_u_field( ((x << sign_shift) >> sign_shift), hi_bit, lo_bit); | |
883 } | |
884 | |
885 // given a field that ranges from hi_bit to lo_bit (inclusive, | |
886 // LSB = 0), and an unsigned value for the field, | |
887 // shift it into the field | |
888 | |
889 #ifdef ASSERT | |
890 static int u_field(int x, int hi_bit, int lo_bit) { | |
891 assert( ( x & ~fmask(hi_bit, lo_bit)) == 0, | |
892 "value out of range"); | |
893 int r = x << lo_bit; | |
894 assert( inv_u_field(r, hi_bit, lo_bit) == x, "just checking"); | |
895 return r; | |
896 } | |
897 #else | |
898 // make sure this is inlined as it will reduce code size significantly | |
899 #define u_field(x, hi_bit, lo_bit) ((x) << (lo_bit)) | |
900 #endif | |
901 | |
902 static int inv_op( int x ) { return inv_u_field(x, 31, 30); } | |
903 static int inv_op2( int x ) { return inv_u_field(x, 24, 22); } | |
904 static int inv_op3( int x ) { return inv_u_field(x, 24, 19); } | |
905 static int inv_cond( int x ){ return inv_u_field(x, 28, 25); } | |
906 | |
907 static bool inv_immed( int x ) { return (x & Assembler::immed(true)) != 0; } | |
908 | |
909 static Register inv_rd( int x ) { return as_Register(inv_u_field(x, 29, 25)); } | |
910 static Register inv_rs1( int x ) { return as_Register(inv_u_field(x, 18, 14)); } | |
911 static Register inv_rs2( int x ) { return as_Register(inv_u_field(x, 4, 0)); } | |
912 | |
913 static int op( int x) { return u_field(x, 31, 30); } | |
914 static int rd( Register r) { return u_field(r->encoding(), 29, 25); } | |
915 static int fcn( int x) { return u_field(x, 29, 25); } | |
916 static int op3( int x) { return u_field(x, 24, 19); } | |
917 static int rs1( Register r) { return u_field(r->encoding(), 18, 14); } | |
918 static int rs2( Register r) { return u_field(r->encoding(), 4, 0); } | |
919 static int annul( bool a) { return u_field(a ? 1 : 0, 29, 29); } | |
920 static int cond( int x) { return u_field(x, 28, 25); } | |
921 static int cond_mov( int x) { return u_field(x, 17, 14); } | |
922 static int rcond( RCondition x) { return u_field(x, 12, 10); } | |
923 static int op2( int x) { return u_field(x, 24, 22); } | |
924 static int predict( bool p) { return u_field(p ? 1 : 0, 19, 19); } | |
925 static int branchcc( CC fcca) { return u_field(fcca, 21, 20); } | |
926 static int cmpcc( CC fcca) { return u_field(fcca, 26, 25); } | |
927 static int imm_asi( int x) { return u_field(x, 12, 5); } | |
928 static int immed( bool i) { return u_field(i ? 1 : 0, 13, 13); } | |
929 static int opf_low6( int w) { return u_field(w, 10, 5); } | |
930 static int opf_low5( int w) { return u_field(w, 9, 5); } | |
931 static int trapcc( CC cc) { return u_field(cc, 12, 11); } | |
932 static int sx( int i) { return u_field(i, 12, 12); } // shift x=1 means 64-bit | |
933 static int opf( int x) { return u_field(x, 13, 5); } | |
934 | |
935 static int opf_cc( CC c, bool useFloat ) { return u_field((useFloat ? 0 : 4) + c, 13, 11); } | |
936 static int mov_cc( CC c, bool useFloat ) { return u_field(useFloat ? 0 : 1, 18, 18) | u_field(c, 12, 11); } | |
937 | |
938 static int fd( FloatRegister r, FloatRegisterImpl::Width fwa) { return u_field(r->encoding(fwa), 29, 25); }; | |
939 static int fs1(FloatRegister r, FloatRegisterImpl::Width fwa) { return u_field(r->encoding(fwa), 18, 14); }; | |
940 static int fs2(FloatRegister r, FloatRegisterImpl::Width fwa) { return u_field(r->encoding(fwa), 4, 0); }; | |
941 | |
942 // some float instructions use this encoding on the op3 field | |
943 static int alt_op3(int op, FloatRegisterImpl::Width w) { | |
944 int r; | |
945 switch(w) { | |
946 case FloatRegisterImpl::S: r = op + 0; break; | |
947 case FloatRegisterImpl::D: r = op + 3; break; | |
948 case FloatRegisterImpl::Q: r = op + 2; break; | |
949 default: ShouldNotReachHere(); break; | |
950 } | |
951 return op3(r); | |
952 } | |
953 | |
954 | |
955 // compute inverse of simm | |
956 static int inv_simm(int x, int nbits) { | |
957 return (int)(x << (32 - nbits)) >> (32 - nbits); | |
958 } | |
959 | |
960 static int inv_simm13( int x ) { return inv_simm(x, 13); } | |
961 | |
962 // signed immediate, in low bits, nbits long | |
963 static int simm(int x, int nbits) { | |
964 assert_signed_range(x, nbits); | |
965 return x & (( 1 << nbits ) - 1); | |
966 } | |
967 | |
968 // compute inverse of wdisp16 | |
969 static intptr_t inv_wdisp16(int x, intptr_t pos) { | |
970 int lo = x & (( 1 << 14 ) - 1); | |
971 int hi = (x >> 20) & 3; | |
972 if (hi >= 2) hi |= ~1; | |
973 return (((hi << 14) | lo) << 2) + pos; | |
974 } | |
975 | |
976 // word offset, 14 bits at LSend, 2 bits at B21, B20 | |
977 static int wdisp16(intptr_t x, intptr_t off) { | |
978 intptr_t xx = x - off; | |
979 assert_signed_word_disp_range(xx, 16); | |
980 int r = (xx >> 2) & ((1 << 14) - 1) | |
981 | ( ( (xx>>(2+14)) & 3 ) << 20 ); | |
982 assert( inv_wdisp16(r, off) == x, "inverse is not inverse"); | |
983 return r; | |
984 } | |
985 | |
986 | |
987 // word displacement in low-order nbits bits | |
988 | |
989 static intptr_t inv_wdisp( int x, intptr_t pos, int nbits ) { | |
990 int pre_sign_extend = x & (( 1 << nbits ) - 1); | |
991 int r = pre_sign_extend >= ( 1 << (nbits-1) ) | |
992 ? pre_sign_extend | ~(( 1 << nbits ) - 1) | |
993 : pre_sign_extend; | |
994 return (r << 2) + pos; | |
995 } | |
996 | |
997 static int wdisp( intptr_t x, intptr_t off, int nbits ) { | |
998 intptr_t xx = x - off; | |
999 assert_signed_word_disp_range(xx, nbits); | |
1000 int r = (xx >> 2) & (( 1 << nbits ) - 1); | |
1001 assert( inv_wdisp( r, off, nbits ) == x, "inverse not inverse"); | |
1002 return r; | |
1003 } | |
1004 | |
1005 | |
1006 // Extract the top 32 bits in a 64 bit word | |
1007 static int32_t hi32( int64_t x ) { | |
1008 int32_t r = int32_t( (uint64_t)x >> 32 ); | |
1009 return r; | |
1010 } | |
1011 | |
1012 // given a sethi instruction, extract the constant, left-justified | |
1013 static int inv_hi22( int x ) { | |
1014 return x << 10; | |
1015 } | |
1016 | |
1017 // create an imm22 field, given a 32-bit left-justified constant | |
1018 static int hi22( int x ) { | |
1019 int r = int( juint(x) >> 10 ); | |
1020 assert( (r & ~((1 << 22) - 1)) == 0, "just checkin'"); | |
1021 return r; | |
1022 } | |
1023 | |
1024 // create a low10 __value__ (not a field) for a given a 32-bit constant | |
1025 static int low10( int x ) { | |
1026 return x & ((1 << 10) - 1); | |
1027 } | |
1028 | |
1029 // instruction only in v9 | |
1030 static void v9_only() { assert( VM_Version::v9_instructions_work(), "This instruction only works on SPARC V9"); } | |
1031 | |
1032 // instruction only in v8 | |
1033 static void v8_only() { assert( VM_Version::v8_instructions_work(), "This instruction only works on SPARC V8"); } | |
1034 | |
1035 // instruction deprecated in v9 | |
1036 static void v9_dep() { } // do nothing for now | |
1037 | |
1038 // some float instructions only exist for single prec. on v8 | |
1039 static void v8_s_only(FloatRegisterImpl::Width w) { if (w != FloatRegisterImpl::S) v9_only(); } | |
1040 | |
1041 // v8 has no CC field | |
1042 static void v8_no_cc(CC cc) { if (cc) v9_only(); } | |
1043 | |
1044 protected: | |
1045 // Simple delay-slot scheme: | |
1046 // In order to check the programmer, the assembler keeps track of deley slots. | |
1047 // It forbids CTIs in delay slots (conservative, but should be OK). | |
1048 // Also, when putting an instruction into a delay slot, you must say | |
1049 // asm->delayed()->add(...), in order to check that you don't omit | |
1050 // delay-slot instructions. | |
1051 // To implement this, we use a simple FSA | |
1052 | |
1053 #ifdef ASSERT | |
1054 #define CHECK_DELAY | |
1055 #endif | |
1056 #ifdef CHECK_DELAY | |
1057 enum Delay_state { no_delay, at_delay_slot, filling_delay_slot } delay_state; | |
1058 #endif | |
1059 | |
1060 public: | |
1061 // Tells assembler next instruction must NOT be in delay slot. | |
1062 // Use at start of multinstruction macros. | |
1063 void assert_not_delayed() { | |
1064 // This is a separate overloading to avoid creation of string constants | |
1065 // in non-asserted code--with some compilers this pollutes the object code. | |
1066 #ifdef CHECK_DELAY | |
1067 assert_not_delayed("next instruction should not be a delay slot"); | |
1068 #endif | |
1069 } | |
1070 void assert_not_delayed(const char* msg) { | |
1071 #ifdef CHECK_DELAY | |
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1072 assert(delay_state == no_delay, msg); |
0 | 1073 #endif |
1074 } | |
1075 | |
1076 protected: | |
1077 // Delay slot helpers | |
1078 // cti is called when emitting control-transfer instruction, | |
1079 // BEFORE doing the emitting. | |
1080 // Only effective when assertion-checking is enabled. | |
1081 void cti() { | |
1082 #ifdef CHECK_DELAY | |
1083 assert_not_delayed("cti should not be in delay slot"); | |
1084 #endif | |
1085 } | |
1086 | |
1087 // called when emitting cti with a delay slot, AFTER emitting | |
1088 void has_delay_slot() { | |
1089 #ifdef CHECK_DELAY | |
1090 assert_not_delayed("just checking"); | |
1091 delay_state = at_delay_slot; | |
1092 #endif | |
1093 } | |
1094 | |
1095 public: | |
1096 // Tells assembler you know that next instruction is delayed | |
1097 Assembler* delayed() { | |
1098 #ifdef CHECK_DELAY | |
1099 assert ( delay_state == at_delay_slot, "delayed instruction is not in delay slot"); | |
1100 delay_state = filling_delay_slot; | |
1101 #endif | |
1102 return this; | |
1103 } | |
1104 | |
1105 void flush() { | |
1106 #ifdef CHECK_DELAY | |
1107 assert ( delay_state == no_delay, "ending code with a delay slot"); | |
1108 #endif | |
1109 AbstractAssembler::flush(); | |
1110 } | |
1111 | |
1112 inline void emit_long(int); // shadows AbstractAssembler::emit_long | |
1113 inline void emit_data(int x) { emit_long(x); } | |
1114 inline void emit_data(int, RelocationHolder const&); | |
1115 inline void emit_data(int, relocInfo::relocType rtype); | |
1116 // helper for above fcns | |
1117 inline void check_delay(); | |
1118 | |
1119 | |
1120 public: | |
1121 // instructions, refer to page numbers in the SPARC Architecture Manual, V9 | |
1122 | |
1123 // pp 135 (addc was addx in v8) | |
1124 | |
727 | 1125 inline void add(Register s1, Register s2, Register d ); |
1126 inline void add(Register s1, int simm13a, Register d, relocInfo::relocType rtype = relocInfo::none); | |
1127 inline void add(Register s1, int simm13a, Register d, RelocationHolder const& rspec); | |
1128 inline void add(Register s1, RegisterOrConstant s2, Register d, int offset = 0); | |
1129 inline void add(const Address& a, Register d, int offset = 0) { add( a.base(), a.disp() + offset, d, a.rspec(offset)); } | |
0 | 1130 |
1131 void addcc( Register s1, Register s2, Register d ) { emit_long( op(arith_op) | rd(d) | op3(add_op3 | cc_bit_op3) | rs1(s1) | rs2(s2) ); } | |
1132 void addcc( Register s1, int simm13a, Register d ) { emit_long( op(arith_op) | rd(d) | op3(add_op3 | cc_bit_op3) | rs1(s1) | immed(true) | simm(simm13a, 13) ); } | |
1133 void addc( Register s1, Register s2, Register d ) { emit_long( op(arith_op) | rd(d) | op3(addc_op3 ) | rs1(s1) | rs2(s2) ); } | |
1134 void addc( Register s1, int simm13a, Register d ) { emit_long( op(arith_op) | rd(d) | op3(addc_op3 ) | rs1(s1) | immed(true) | simm(simm13a, 13) ); } | |
1135 void addccc( Register s1, Register s2, Register d ) { emit_long( op(arith_op) | rd(d) | op3(addc_op3 | cc_bit_op3) | rs1(s1) | rs2(s2) ); } | |
1136 void addccc( Register s1, int simm13a, Register d ) { emit_long( op(arith_op) | rd(d) | op3(addc_op3 | cc_bit_op3) | rs1(s1) | immed(true) | simm(simm13a, 13) ); } | |
1137 | |
1138 // pp 136 | |
1139 | |
1140 inline void bpr( RCondition c, bool a, Predict p, Register s1, address d, relocInfo::relocType rt = relocInfo::none ); | |
1141 inline void bpr( RCondition c, bool a, Predict p, Register s1, Label& L); | |
1142 | |
1143 protected: // use MacroAssembler::br instead | |
1144 | |
1145 // pp 138 | |
1146 | |
1147 inline void fb( Condition c, bool a, address d, relocInfo::relocType rt = relocInfo::none ); | |
1148 inline void fb( Condition c, bool a, Label& L ); | |
1149 | |
1150 // pp 141 | |
1151 | |
1152 inline void fbp( Condition c, bool a, CC cc, Predict p, address d, relocInfo::relocType rt = relocInfo::none ); | |
1153 inline void fbp( Condition c, bool a, CC cc, Predict p, Label& L ); | |
1154 | |
1155 public: | |
1156 | |
1157 // pp 144 | |
1158 | |
1159 inline void br( Condition c, bool a, address d, relocInfo::relocType rt = relocInfo::none ); | |
1160 inline void br( Condition c, bool a, Label& L ); | |
1161 | |
1162 // pp 146 | |
1163 | |
1164 inline void bp( Condition c, bool a, CC cc, Predict p, address d, relocInfo::relocType rt = relocInfo::none ); | |
1165 inline void bp( Condition c, bool a, CC cc, Predict p, Label& L ); | |
1166 | |
1167 // pp 121 (V8) | |
1168 | |
1169 inline void cb( Condition c, bool a, address d, relocInfo::relocType rt = relocInfo::none ); | |
1170 inline void cb( Condition c, bool a, Label& L ); | |
1171 | |
1172 // pp 149 | |
1173 | |
1174 inline void call( address d, relocInfo::relocType rt = relocInfo::runtime_call_type ); | |
1175 inline void call( Label& L, relocInfo::relocType rt = relocInfo::runtime_call_type ); | |
1176 | |
1177 // pp 150 | |
1178 | |
1179 // These instructions compare the contents of s2 with the contents of | |
1180 // memory at address in s1. If the values are equal, the contents of memory | |
1181 // at address s1 is swapped with the data in d. If the values are not equal, | |
1182 // the the contents of memory at s1 is loaded into d, without the swap. | |
1183 | |
1184 void casa( Register s1, Register s2, Register d, int ia = -1 ) { v9_only(); emit_long( op(ldst_op) | rd(d) | op3(casa_op3 ) | rs1(s1) | (ia == -1 ? immed(true) : imm_asi(ia)) | rs2(s2)); } | |
1185 void casxa( Register s1, Register s2, Register d, int ia = -1 ) { v9_only(); emit_long( op(ldst_op) | rd(d) | op3(casxa_op3) | rs1(s1) | (ia == -1 ? immed(true) : imm_asi(ia)) | rs2(s2)); } | |
1186 | |
1187 // pp 152 | |
1188 | |
1189 void udiv( Register s1, Register s2, Register d ) { emit_long( op(arith_op) | rd(d) | op3(udiv_op3 ) | rs1(s1) | rs2(s2)); } | |
1190 void udiv( Register s1, int simm13a, Register d ) { emit_long( op(arith_op) | rd(d) | op3(udiv_op3 ) | rs1(s1) | immed(true) | simm(simm13a, 13) ); } | |
1191 void sdiv( Register s1, Register s2, Register d ) { emit_long( op(arith_op) | rd(d) | op3(sdiv_op3 ) | rs1(s1) | rs2(s2)); } | |
1192 void sdiv( Register s1, int simm13a, Register d ) { emit_long( op(arith_op) | rd(d) | op3(sdiv_op3 ) | rs1(s1) | immed(true) | simm(simm13a, 13) ); } | |
1193 void udivcc( Register s1, Register s2, Register d ) { emit_long( op(arith_op) | rd(d) | op3(udiv_op3 | cc_bit_op3) | rs1(s1) | rs2(s2)); } | |
1194 void udivcc( Register s1, int simm13a, Register d ) { emit_long( op(arith_op) | rd(d) | op3(udiv_op3 | cc_bit_op3) | rs1(s1) | immed(true) | simm(simm13a, 13) ); } | |
1195 void sdivcc( Register s1, Register s2, Register d ) { emit_long( op(arith_op) | rd(d) | op3(sdiv_op3 | cc_bit_op3) | rs1(s1) | rs2(s2)); } | |
1196 void sdivcc( Register s1, int simm13a, Register d ) { emit_long( op(arith_op) | rd(d) | op3(sdiv_op3 | cc_bit_op3) | rs1(s1) | immed(true) | simm(simm13a, 13) ); } | |
1197 | |
1198 // pp 155 | |
1199 | |
1200 void done() { v9_only(); cti(); emit_long( op(arith_op) | fcn(0) | op3(done_op3) ); } | |
1201 void retry() { v9_only(); cti(); emit_long( op(arith_op) | fcn(1) | op3(retry_op3) ); } | |
1202 | |
1203 // pp 156 | |
1204 | |
1205 void fadd( FloatRegisterImpl::Width w, FloatRegister s1, FloatRegister s2, FloatRegister d ) { emit_long( op(arith_op) | fd(d, w) | op3(fpop1_op3) | fs1(s1, w) | opf(0x40 + w) | fs2(s2, w)); } | |
1206 void fsub( FloatRegisterImpl::Width w, FloatRegister s1, FloatRegister s2, FloatRegister d ) { emit_long( op(arith_op) | fd(d, w) | op3(fpop1_op3) | fs1(s1, w) | opf(0x44 + w) | fs2(s2, w)); } | |
1207 | |
1208 // pp 157 | |
1209 | |
1210 void fcmp( FloatRegisterImpl::Width w, CC cc, FloatRegister s1, FloatRegister s2) { v8_no_cc(cc); emit_long( op(arith_op) | cmpcc(cc) | op3(fpop2_op3) | fs1(s1, w) | opf(0x50 + w) | fs2(s2, w)); } | |
1211 void fcmpe( FloatRegisterImpl::Width w, CC cc, FloatRegister s1, FloatRegister s2) { v8_no_cc(cc); emit_long( op(arith_op) | cmpcc(cc) | op3(fpop2_op3) | fs1(s1, w) | opf(0x54 + w) | fs2(s2, w)); } | |
1212 | |
1213 // pp 159 | |
1214 | |
1215 void ftox( FloatRegisterImpl::Width w, FloatRegister s, FloatRegister d ) { v9_only(); emit_long( op(arith_op) | fd(d, w) | op3(fpop1_op3) | opf(0x80 + w) | fs2(s, w)); } | |
1216 void ftoi( FloatRegisterImpl::Width w, FloatRegister s, FloatRegister d ) { emit_long( op(arith_op) | fd(d, w) | op3(fpop1_op3) | opf(0xd0 + w) | fs2(s, w)); } | |
1217 | |
1218 // pp 160 | |
1219 | |
1220 void ftof( FloatRegisterImpl::Width sw, FloatRegisterImpl::Width dw, FloatRegister s, FloatRegister d ) { emit_long( op(arith_op) | fd(d, dw) | op3(fpop1_op3) | opf(0xc0 + sw + dw*4) | fs2(s, sw)); } | |
1221 | |
1222 // pp 161 | |
1223 | |
1224 void fxtof( FloatRegisterImpl::Width w, FloatRegister s, FloatRegister d ) { v9_only(); emit_long( op(arith_op) | fd(d, w) | op3(fpop1_op3) | opf(0x80 + w*4) | fs2(s, w)); } | |
1225 void fitof( FloatRegisterImpl::Width w, FloatRegister s, FloatRegister d ) { emit_long( op(arith_op) | fd(d, w) | op3(fpop1_op3) | opf(0xc0 + w*4) | fs2(s, w)); } | |
1226 | |
1227 // pp 162 | |
1228 | |
1229 void fmov( FloatRegisterImpl::Width w, FloatRegister s, FloatRegister d ) { v8_s_only(w); emit_long( op(arith_op) | fd(d, w) | op3(fpop1_op3) | opf(0x00 + w) | fs2(s, w)); } | |
1230 | |
1231 void fneg( FloatRegisterImpl::Width w, FloatRegister s, FloatRegister d ) { v8_s_only(w); emit_long( op(arith_op) | fd(d, w) | op3(fpop1_op3) | opf(0x04 + w) | fs2(s, w)); } | |
1232 | |
1233 // page 144 sparc v8 architecture (double prec works on v8 if the source and destination registers are the same). fnegs is the only instruction available | |
1234 // on v8 to do negation of single, double and quad precision floats. | |
1235 | |
1236 void fneg( FloatRegisterImpl::Width w, FloatRegister sd ) { if (VM_Version::v9_instructions_work()) emit_long( op(arith_op) | fd(sd, w) | op3(fpop1_op3) | opf(0x04 + w) | fs2(sd, w)); else emit_long( op(arith_op) | fd(sd, w) | op3(fpop1_op3) | opf(0x05) | fs2(sd, w)); } | |
1237 | |
1238 void fabs( FloatRegisterImpl::Width w, FloatRegister s, FloatRegister d ) { v8_s_only(w); emit_long( op(arith_op) | fd(d, w) | op3(fpop1_op3) | opf(0x08 + w) | fs2(s, w)); } | |
1239 | |
1240 // page 144 sparc v8 architecture (double prec works on v8 if the source and destination registers are the same). fabss is the only instruction available | |
1241 // on v8 to do abs operation on single/double/quad precision floats. | |
1242 | |
1243 void fabs( FloatRegisterImpl::Width w, FloatRegister sd ) { if (VM_Version::v9_instructions_work()) emit_long( op(arith_op) | fd(sd, w) | op3(fpop1_op3) | opf(0x08 + w) | fs2(sd, w)); else emit_long( op(arith_op) | fd(sd, w) | op3(fpop1_op3) | opf(0x09) | fs2(sd, w)); } | |
1244 | |
1245 // pp 163 | |
1246 | |
1247 void fmul( FloatRegisterImpl::Width w, FloatRegister s1, FloatRegister s2, FloatRegister d ) { emit_long( op(arith_op) | fd(d, w) | op3(fpop1_op3) | fs1(s1, w) | opf(0x48 + w) | fs2(s2, w)); } | |
1248 void fmul( FloatRegisterImpl::Width sw, FloatRegisterImpl::Width dw, FloatRegister s1, FloatRegister s2, FloatRegister d ) { emit_long( op(arith_op) | fd(d, dw) | op3(fpop1_op3) | fs1(s1, sw) | opf(0x60 + sw + dw*4) | fs2(s2, sw)); } | |
1249 void fdiv( FloatRegisterImpl::Width w, FloatRegister s1, FloatRegister s2, FloatRegister d ) { emit_long( op(arith_op) | fd(d, w) | op3(fpop1_op3) | fs1(s1, w) | opf(0x4c + w) | fs2(s2, w)); } | |
1250 | |
1251 // pp 164 | |
1252 | |
1253 void fsqrt( FloatRegisterImpl::Width w, FloatRegister s, FloatRegister d ) { emit_long( op(arith_op) | fd(d, w) | op3(fpop1_op3) | opf(0x28 + w) | fs2(s, w)); } | |
1254 | |
1255 // pp 165 | |
1256 | |
1257 inline void flush( Register s1, Register s2 ); | |
1258 inline void flush( Register s1, int simm13a); | |
1259 | |
1260 // pp 167 | |
1261 | |
1262 void flushw() { v9_only(); emit_long( op(arith_op) | op3(flushw_op3) ); } | |
1263 | |
1264 // pp 168 | |
1265 | |
1266 void illtrap( int const22a) { if (const22a != 0) v9_only(); emit_long( op(branch_op) | u_field(const22a, 21, 0) ); } | |
1267 // v8 unimp == illtrap(0) | |
1268 | |
1269 // pp 169 | |
1270 | |
1271 void impdep1( int id1, int const19a ) { v9_only(); emit_long( op(arith_op) | fcn(id1) | op3(impdep1_op3) | u_field(const19a, 18, 0)); } | |
1272 void impdep2( int id1, int const19a ) { v9_only(); emit_long( op(arith_op) | fcn(id1) | op3(impdep2_op3) | u_field(const19a, 18, 0)); } | |
1273 | |
1274 // pp 149 (v8) | |
1275 | |
1276 void cpop1( int opc, int cr1, int cr2, int crd ) { v8_only(); emit_long( op(arith_op) | fcn(crd) | op3(impdep1_op3) | u_field(cr1, 18, 14) | opf(opc) | u_field(cr2, 4, 0)); } | |
1277 void cpop2( int opc, int cr1, int cr2, int crd ) { v8_only(); emit_long( op(arith_op) | fcn(crd) | op3(impdep2_op3) | u_field(cr1, 18, 14) | opf(opc) | u_field(cr2, 4, 0)); } | |
1278 | |
1279 // pp 170 | |
1280 | |
1281 void jmpl( Register s1, Register s2, Register d ); | |
1282 void jmpl( Register s1, int simm13a, Register d, RelocationHolder const& rspec = RelocationHolder() ); | |
1283 | |
1284 // 171 | |
1285 | |
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1286 inline void ldf(FloatRegisterImpl::Width w, Register s1, RegisterOrConstant s2, FloatRegister d); |
727 | 1287 inline void ldf(FloatRegisterImpl::Width w, Register s1, Register s2, FloatRegister d); |
1288 inline void ldf(FloatRegisterImpl::Width w, Register s1, int simm13a, FloatRegister d, RelocationHolder const& rspec = RelocationHolder()); | |
1289 | |
1290 inline void ldf(FloatRegisterImpl::Width w, const Address& a, FloatRegister d, int offset = 0); | |
0 | 1291 |
1292 | |
1293 inline void ldfsr( Register s1, Register s2 ); | |
1294 inline void ldfsr( Register s1, int simm13a); | |
1295 inline void ldxfsr( Register s1, Register s2 ); | |
1296 inline void ldxfsr( Register s1, int simm13a); | |
1297 | |
1298 // pp 94 (v8) | |
1299 | |
1300 inline void ldc( Register s1, Register s2, int crd ); | |
1301 inline void ldc( Register s1, int simm13a, int crd); | |
1302 inline void lddc( Register s1, Register s2, int crd ); | |
1303 inline void lddc( Register s1, int simm13a, int crd); | |
1304 inline void ldcsr( Register s1, Register s2, int crd ); | |
1305 inline void ldcsr( Register s1, int simm13a, int crd); | |
1306 | |
1307 | |
1308 // 173 | |
1309 | |
1310 void ldfa( FloatRegisterImpl::Width w, Register s1, Register s2, int ia, FloatRegister d ) { v9_only(); emit_long( op(ldst_op) | fd(d, w) | alt_op3(ldf_op3 | alt_bit_op3, w) | rs1(s1) | imm_asi(ia) | rs2(s2) ); } | |
1311 void ldfa( FloatRegisterImpl::Width w, Register s1, int simm13a, FloatRegister d ) { v9_only(); emit_long( op(ldst_op) | fd(d, w) | alt_op3(ldf_op3 | alt_bit_op3, w) | rs1(s1) | immed(true) | simm(simm13a, 13) ); } | |
1312 | |
1313 // pp 175, lduw is ld on v8 | |
1314 | |
1315 inline void ldsb( Register s1, Register s2, Register d ); | |
1316 inline void ldsb( Register s1, int simm13a, Register d); | |
1317 inline void ldsh( Register s1, Register s2, Register d ); | |
1318 inline void ldsh( Register s1, int simm13a, Register d); | |
1319 inline void ldsw( Register s1, Register s2, Register d ); | |
1320 inline void ldsw( Register s1, int simm13a, Register d); | |
1321 inline void ldub( Register s1, Register s2, Register d ); | |
1322 inline void ldub( Register s1, int simm13a, Register d); | |
1323 inline void lduh( Register s1, Register s2, Register d ); | |
1324 inline void lduh( Register s1, int simm13a, Register d); | |
1325 inline void lduw( Register s1, Register s2, Register d ); | |
1326 inline void lduw( Register s1, int simm13a, Register d); | |
1327 inline void ldx( Register s1, Register s2, Register d ); | |
1328 inline void ldx( Register s1, int simm13a, Register d); | |
1329 inline void ld( Register s1, Register s2, Register d ); | |
1330 inline void ld( Register s1, int simm13a, Register d); | |
1331 inline void ldd( Register s1, Register s2, Register d ); | |
1332 inline void ldd( Register s1, int simm13a, Register d); | |
1333 | |
727 | 1334 #ifdef ASSERT |
1335 // ByteSize is only a class when ASSERT is defined, otherwise it's an int. | |
1336 inline void ld( Register s1, ByteSize simm13a, Register d); | |
1337 #endif | |
1338 | |
1339 inline void ldsb(const Address& a, Register d, int offset = 0); | |
1340 inline void ldsh(const Address& a, Register d, int offset = 0); | |
1341 inline void ldsw(const Address& a, Register d, int offset = 0); | |
1342 inline void ldub(const Address& a, Register d, int offset = 0); | |
1343 inline void lduh(const Address& a, Register d, int offset = 0); | |
1344 inline void lduw(const Address& a, Register d, int offset = 0); | |
1345 inline void ldx( const Address& a, Register d, int offset = 0); | |
1346 inline void ld( const Address& a, Register d, int offset = 0); | |
1347 inline void ldd( const Address& a, Register d, int offset = 0); | |
0 | 1348 |
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1349 inline void ldub( Register s1, RegisterOrConstant s2, Register d ); |
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1350 inline void ldsb( Register s1, RegisterOrConstant s2, Register d ); |
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1351 inline void lduh( Register s1, RegisterOrConstant s2, Register d ); |
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1352 inline void ldsh( Register s1, RegisterOrConstant s2, Register d ); |
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1353 inline void lduw( Register s1, RegisterOrConstant s2, Register d ); |
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1354 inline void ldsw( Register s1, RegisterOrConstant s2, Register d ); |
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1355 inline void ldx( Register s1, RegisterOrConstant s2, Register d ); |
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1356 inline void ld( Register s1, RegisterOrConstant s2, Register d ); |
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1357 inline void ldd( Register s1, RegisterOrConstant s2, Register d ); |
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1358 |
0 | 1359 // pp 177 |
1360 | |
1361 void ldsba( Register s1, Register s2, int ia, Register d ) { emit_long( op(ldst_op) | rd(d) | op3(ldsb_op3 | alt_bit_op3) | rs1(s1) | imm_asi(ia) | rs2(s2) ); } | |
1362 void ldsba( Register s1, int simm13a, Register d ) { emit_long( op(ldst_op) | rd(d) | op3(ldsb_op3 | alt_bit_op3) | rs1(s1) | immed(true) | simm(simm13a, 13) ); } | |
1363 void ldsha( Register s1, Register s2, int ia, Register d ) { emit_long( op(ldst_op) | rd(d) | op3(ldsh_op3 | alt_bit_op3) | rs1(s1) | imm_asi(ia) | rs2(s2) ); } | |
1364 void ldsha( Register s1, int simm13a, Register d ) { emit_long( op(ldst_op) | rd(d) | op3(ldsh_op3 | alt_bit_op3) | rs1(s1) | immed(true) | simm(simm13a, 13) ); } | |
1365 void ldswa( Register s1, Register s2, int ia, Register d ) { v9_only(); emit_long( op(ldst_op) | rd(d) | op3(ldsw_op3 | alt_bit_op3) | rs1(s1) | imm_asi(ia) | rs2(s2) ); } | |
1366 void ldswa( Register s1, int simm13a, Register d ) { v9_only(); emit_long( op(ldst_op) | rd(d) | op3(ldsw_op3 | alt_bit_op3) | rs1(s1) | immed(true) | simm(simm13a, 13) ); } | |
1367 void lduba( Register s1, Register s2, int ia, Register d ) { emit_long( op(ldst_op) | rd(d) | op3(ldub_op3 | alt_bit_op3) | rs1(s1) | imm_asi(ia) | rs2(s2) ); } | |
1368 void lduba( Register s1, int simm13a, Register d ) { emit_long( op(ldst_op) | rd(d) | op3(ldub_op3 | alt_bit_op3) | rs1(s1) | immed(true) | simm(simm13a, 13) ); } | |
1369 void lduha( Register s1, Register s2, int ia, Register d ) { emit_long( op(ldst_op) | rd(d) | op3(lduh_op3 | alt_bit_op3) | rs1(s1) | imm_asi(ia) | rs2(s2) ); } | |
1370 void lduha( Register s1, int simm13a, Register d ) { emit_long( op(ldst_op) | rd(d) | op3(lduh_op3 | alt_bit_op3) | rs1(s1) | immed(true) | simm(simm13a, 13) ); } | |
1371 void lduwa( Register s1, Register s2, int ia, Register d ) { emit_long( op(ldst_op) | rd(d) | op3(lduw_op3 | alt_bit_op3) | rs1(s1) | imm_asi(ia) | rs2(s2) ); } | |
1372 void lduwa( Register s1, int simm13a, Register d ) { emit_long( op(ldst_op) | rd(d) | op3(lduw_op3 | alt_bit_op3) | rs1(s1) | immed(true) | simm(simm13a, 13) ); } | |
1373 void ldxa( Register s1, Register s2, int ia, Register d ) { v9_only(); emit_long( op(ldst_op) | rd(d) | op3(ldx_op3 | alt_bit_op3) | rs1(s1) | imm_asi(ia) | rs2(s2) ); } | |
1374 void ldxa( Register s1, int simm13a, Register d ) { v9_only(); emit_long( op(ldst_op) | rd(d) | op3(ldx_op3 | alt_bit_op3) | rs1(s1) | immed(true) | simm(simm13a, 13) ); } | |
1375 void ldda( Register s1, Register s2, int ia, Register d ) { v9_dep(); emit_long( op(ldst_op) | rd(d) | op3(ldd_op3 | alt_bit_op3) | rs1(s1) | imm_asi(ia) | rs2(s2) ); } | |
1376 void ldda( Register s1, int simm13a, Register d ) { v9_dep(); emit_long( op(ldst_op) | rd(d) | op3(ldd_op3 | alt_bit_op3) | rs1(s1) | immed(true) | simm(simm13a, 13) ); } | |
1377 | |
1378 // pp 179 | |
1379 | |
1380 inline void ldstub( Register s1, Register s2, Register d ); | |
1381 inline void ldstub( Register s1, int simm13a, Register d); | |
1382 | |
1383 // pp 180 | |
1384 | |
1385 void ldstuba( Register s1, Register s2, int ia, Register d ) { emit_long( op(ldst_op) | rd(d) | op3(ldstub_op3 | alt_bit_op3) | rs1(s1) | imm_asi(ia) | rs2(s2) ); } | |
1386 void ldstuba( Register s1, int simm13a, Register d ) { emit_long( op(ldst_op) | rd(d) | op3(ldstub_op3 | alt_bit_op3) | rs1(s1) | immed(true) | simm(simm13a, 13) ); } | |
1387 | |
1388 // pp 181 | |
1389 | |
1503 | 1390 void and3( Register s1, Register s2, Register d ) { emit_long( op(arith_op) | rd(d) | op3(and_op3 ) | rs1(s1) | rs2(s2) ); } |
1391 void and3( Register s1, int simm13a, Register d ) { emit_long( op(arith_op) | rd(d) | op3(and_op3 ) | rs1(s1) | immed(true) | simm(simm13a, 13) ); } | |
0 | 1392 void andcc( Register s1, Register s2, Register d ) { emit_long( op(arith_op) | rd(d) | op3(and_op3 | cc_bit_op3) | rs1(s1) | rs2(s2) ); } |
1393 void andcc( Register s1, int simm13a, Register d ) { emit_long( op(arith_op) | rd(d) | op3(and_op3 | cc_bit_op3) | rs1(s1) | immed(true) | simm(simm13a, 13) ); } | |
1394 void andn( Register s1, Register s2, Register d ) { emit_long( op(arith_op) | rd(d) | op3(andn_op3 ) | rs1(s1) | rs2(s2) ); } | |
1395 void andn( Register s1, int simm13a, Register d ) { emit_long( op(arith_op) | rd(d) | op3(andn_op3 ) | rs1(s1) | immed(true) | simm(simm13a, 13) ); } | |
1503 | 1396 void andn( Register s1, RegisterOrConstant s2, Register d); |
0 | 1397 void andncc( Register s1, Register s2, Register d ) { emit_long( op(arith_op) | rd(d) | op3(andn_op3 | cc_bit_op3) | rs1(s1) | rs2(s2) ); } |
1398 void andncc( Register s1, int simm13a, Register d ) { emit_long( op(arith_op) | rd(d) | op3(andn_op3 | cc_bit_op3) | rs1(s1) | immed(true) | simm(simm13a, 13) ); } | |
1503 | 1399 void or3( Register s1, Register s2, Register d ) { emit_long( op(arith_op) | rd(d) | op3(or_op3 ) | rs1(s1) | rs2(s2) ); } |
1400 void or3( Register s1, int simm13a, Register d ) { emit_long( op(arith_op) | rd(d) | op3(or_op3 ) | rs1(s1) | immed(true) | simm(simm13a, 13) ); } | |
0 | 1401 void orcc( Register s1, Register s2, Register d ) { emit_long( op(arith_op) | rd(d) | op3(or_op3 | cc_bit_op3) | rs1(s1) | rs2(s2) ); } |
1402 void orcc( Register s1, int simm13a, Register d ) { emit_long( op(arith_op) | rd(d) | op3(or_op3 | cc_bit_op3) | rs1(s1) | immed(true) | simm(simm13a, 13) ); } | |
1403 void orn( Register s1, Register s2, Register d ) { emit_long( op(arith_op) | rd(d) | op3(orn_op3) | rs1(s1) | rs2(s2) ); } | |
1404 void orn( Register s1, int simm13a, Register d ) { emit_long( op(arith_op) | rd(d) | op3(orn_op3) | rs1(s1) | immed(true) | simm(simm13a, 13) ); } | |
1405 void orncc( Register s1, Register s2, Register d ) { emit_long( op(arith_op) | rd(d) | op3(orn_op3 | cc_bit_op3) | rs1(s1) | rs2(s2) ); } | |
1406 void orncc( Register s1, int simm13a, Register d ) { emit_long( op(arith_op) | rd(d) | op3(orn_op3 | cc_bit_op3) | rs1(s1) | immed(true) | simm(simm13a, 13) ); } | |
1503 | 1407 void xor3( Register s1, Register s2, Register d ) { emit_long( op(arith_op) | rd(d) | op3(xor_op3 ) | rs1(s1) | rs2(s2) ); } |
1408 void xor3( Register s1, int simm13a, Register d ) { emit_long( op(arith_op) | rd(d) | op3(xor_op3 ) | rs1(s1) | immed(true) | simm(simm13a, 13) ); } | |
0 | 1409 void xorcc( Register s1, Register s2, Register d ) { emit_long( op(arith_op) | rd(d) | op3(xor_op3 | cc_bit_op3) | rs1(s1) | rs2(s2) ); } |
1410 void xorcc( Register s1, int simm13a, Register d ) { emit_long( op(arith_op) | rd(d) | op3(xor_op3 | cc_bit_op3) | rs1(s1) | immed(true) | simm(simm13a, 13) ); } | |
1411 void xnor( Register s1, Register s2, Register d ) { emit_long( op(arith_op) | rd(d) | op3(xnor_op3 ) | rs1(s1) | rs2(s2) ); } | |
1412 void xnor( Register s1, int simm13a, Register d ) { emit_long( op(arith_op) | rd(d) | op3(xnor_op3 ) | rs1(s1) | immed(true) | simm(simm13a, 13) ); } | |
1413 void xnorcc( Register s1, Register s2, Register d ) { emit_long( op(arith_op) | rd(d) | op3(xnor_op3 | cc_bit_op3) | rs1(s1) | rs2(s2) ); } | |
1414 void xnorcc( Register s1, int simm13a, Register d ) { emit_long( op(arith_op) | rd(d) | op3(xnor_op3 | cc_bit_op3) | rs1(s1) | immed(true) | simm(simm13a, 13) ); } | |
1415 | |
1416 // pp 183 | |
1417 | |
1418 void membar( Membar_mask_bits const7a ) { v9_only(); emit_long( op(arith_op) | op3(membar_op3) | rs1(O7) | immed(true) | u_field( int(const7a), 6, 0)); } | |
1419 | |
1420 // pp 185 | |
1421 | |
1422 void fmov( FloatRegisterImpl::Width w, Condition c, bool floatCC, CC cca, FloatRegister s2, FloatRegister d ) { v9_only(); emit_long( op(arith_op) | fd(d, w) | op3(fpop2_op3) | cond_mov(c) | opf_cc(cca, floatCC) | opf_low6(w) | fs2(s2, w)); } | |
1423 | |
1424 // pp 189 | |
1425 | |
1426 void fmov( FloatRegisterImpl::Width w, RCondition c, Register s1, FloatRegister s2, FloatRegister d ) { v9_only(); emit_long( op(arith_op) | fd(d, w) | op3(fpop2_op3) | rs1(s1) | rcond(c) | opf_low5(4 + w) | fs2(s2, w)); } | |
1427 | |
1428 // pp 191 | |
1429 | |
1430 void movcc( Condition c, bool floatCC, CC cca, Register s2, Register d ) { v9_only(); emit_long( op(arith_op) | rd(d) | op3(movcc_op3) | mov_cc(cca, floatCC) | cond_mov(c) | rs2(s2) ); } | |
1431 void movcc( Condition c, bool floatCC, CC cca, int simm11a, Register d ) { v9_only(); emit_long( op(arith_op) | rd(d) | op3(movcc_op3) | mov_cc(cca, floatCC) | cond_mov(c) | immed(true) | simm(simm11a, 11) ); } | |
1432 | |
1433 // pp 195 | |
1434 | |
1435 void movr( RCondition c, Register s1, Register s2, Register d ) { v9_only(); emit_long( op(arith_op) | rd(d) | op3(movr_op3) | rs1(s1) | rcond(c) | rs2(s2) ); } | |
1436 void movr( RCondition c, Register s1, int simm10a, Register d ) { v9_only(); emit_long( op(arith_op) | rd(d) | op3(movr_op3) | rs1(s1) | rcond(c) | immed(true) | simm(simm10a, 10) ); } | |
1437 | |
1438 // pp 196 | |
1439 | |
1440 void mulx( Register s1, Register s2, Register d ) { v9_only(); emit_long( op(arith_op) | rd(d) | op3(mulx_op3 ) | rs1(s1) | rs2(s2) ); } | |
1441 void mulx( Register s1, int simm13a, Register d ) { v9_only(); emit_long( op(arith_op) | rd(d) | op3(mulx_op3 ) | rs1(s1) | immed(true) | simm(simm13a, 13) ); } | |
1442 void sdivx( Register s1, Register s2, Register d ) { v9_only(); emit_long( op(arith_op) | rd(d) | op3(sdivx_op3) | rs1(s1) | rs2(s2) ); } | |
1443 void sdivx( Register s1, int simm13a, Register d ) { v9_only(); emit_long( op(arith_op) | rd(d) | op3(sdivx_op3) | rs1(s1) | immed(true) | simm(simm13a, 13) ); } | |
1444 void udivx( Register s1, Register s2, Register d ) { v9_only(); emit_long( op(arith_op) | rd(d) | op3(udivx_op3) | rs1(s1) | rs2(s2) ); } | |
1445 void udivx( Register s1, int simm13a, Register d ) { v9_only(); emit_long( op(arith_op) | rd(d) | op3(udivx_op3) | rs1(s1) | immed(true) | simm(simm13a, 13) ); } | |
1446 | |
1447 // pp 197 | |
1448 | |
1449 void umul( Register s1, Register s2, Register d ) { emit_long( op(arith_op) | rd(d) | op3(umul_op3 ) | rs1(s1) | rs2(s2) ); } | |
1450 void umul( Register s1, int simm13a, Register d ) { emit_long( op(arith_op) | rd(d) | op3(umul_op3 ) | rs1(s1) | immed(true) | simm(simm13a, 13) ); } | |
1451 void smul( Register s1, Register s2, Register d ) { emit_long( op(arith_op) | rd(d) | op3(smul_op3 ) | rs1(s1) | rs2(s2) ); } | |
1452 void smul( Register s1, int simm13a, Register d ) { emit_long( op(arith_op) | rd(d) | op3(smul_op3 ) | rs1(s1) | immed(true) | simm(simm13a, 13) ); } | |
1453 void umulcc( Register s1, Register s2, Register d ) { emit_long( op(arith_op) | rd(d) | op3(umul_op3 | cc_bit_op3) | rs1(s1) | rs2(s2) ); } | |
1454 void umulcc( Register s1, int simm13a, Register d ) { emit_long( op(arith_op) | rd(d) | op3(umul_op3 | cc_bit_op3) | rs1(s1) | immed(true) | simm(simm13a, 13) ); } | |
1455 void smulcc( Register s1, Register s2, Register d ) { emit_long( op(arith_op) | rd(d) | op3(smul_op3 | cc_bit_op3) | rs1(s1) | rs2(s2) ); } | |
1456 void smulcc( Register s1, int simm13a, Register d ) { emit_long( op(arith_op) | rd(d) | op3(smul_op3 | cc_bit_op3) | rs1(s1) | immed(true) | simm(simm13a, 13) ); } | |
1457 | |
1458 // pp 199 | |
1459 | |
1460 void mulscc( Register s1, Register s2, Register d ) { v9_dep(); emit_long( op(arith_op) | rd(d) | op3(mulscc_op3) | rs1(s1) | rs2(s2) ); } | |
1461 void mulscc( Register s1, int simm13a, Register d ) { v9_dep(); emit_long( op(arith_op) | rd(d) | op3(mulscc_op3) | rs1(s1) | immed(true) | simm(simm13a, 13) ); } | |
1462 | |
1463 // pp 201 | |
1464 | |
1465 void nop() { emit_long( op(branch_op) | op2(sethi_op2) ); } | |
1466 | |
1467 | |
1468 // pp 202 | |
1469 | |
1470 void popc( Register s, Register d) { v9_only(); emit_long( op(arith_op) | rd(d) | op3(popc_op3) | rs2(s)); } | |
1471 void popc( int simm13a, Register d) { v9_only(); emit_long( op(arith_op) | rd(d) | op3(popc_op3) | immed(true) | simm(simm13a, 13)); } | |
1472 | |
1473 // pp 203 | |
1474 | |
1475 void prefetch( Register s1, Register s2, PrefetchFcn f); | |
1476 void prefetch( Register s1, int simm13a, PrefetchFcn f); | |
1477 void prefetcha( Register s1, Register s2, int ia, PrefetchFcn f ) { v9_only(); emit_long( op(ldst_op) | fcn(f) | op3(prefetch_op3 | alt_bit_op3) | rs1(s1) | imm_asi(ia) | rs2(s2) ); } | |
1478 void prefetcha( Register s1, int simm13a, PrefetchFcn f ) { v9_only(); emit_long( op(ldst_op) | fcn(f) | op3(prefetch_op3 | alt_bit_op3) | rs1(s1) | immed(true) | simm(simm13a, 13) ); } | |
1479 | |
1480 inline void prefetch(const Address& a, PrefetchFcn F, int offset = 0); | |
1481 | |
1482 // pp 208 | |
1483 | |
1484 // not implementing read privileged register | |
1485 | |
1486 inline void rdy( Register d) { v9_dep(); emit_long( op(arith_op) | rd(d) | op3(rdreg_op3) | u_field(0, 18, 14)); } | |
1487 inline void rdccr( Register d) { v9_only(); emit_long( op(arith_op) | rd(d) | op3(rdreg_op3) | u_field(2, 18, 14)); } | |
1488 inline void rdasi( Register d) { v9_only(); emit_long( op(arith_op) | rd(d) | op3(rdreg_op3) | u_field(3, 18, 14)); } | |
1489 inline void rdtick( Register d) { v9_only(); emit_long( op(arith_op) | rd(d) | op3(rdreg_op3) | u_field(4, 18, 14)); } // Spoon! | |
1490 inline void rdpc( Register d) { v9_only(); emit_long( op(arith_op) | rd(d) | op3(rdreg_op3) | u_field(5, 18, 14)); } | |
1491 inline void rdfprs( Register d) { v9_only(); emit_long( op(arith_op) | rd(d) | op3(rdreg_op3) | u_field(6, 18, 14)); } | |
1492 | |
1493 // pp 213 | |
1494 | |
1495 inline void rett( Register s1, Register s2); | |
1496 inline void rett( Register s1, int simm13a, relocInfo::relocType rt = relocInfo::none); | |
1497 | |
1498 // pp 214 | |
1499 | |
1500 void save( Register s1, Register s2, Register d ) { emit_long( op(arith_op) | rd(d) | op3(save_op3) | rs1(s1) | rs2(s2) ); } | |
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1501 void save( Register s1, int simm13a, Register d ) { |
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1502 // make sure frame is at least large enough for the register save area |
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1503 assert(-simm13a >= 16 * wordSize, "frame too small"); |
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1504 emit_long( op(arith_op) | rd(d) | op3(save_op3) | rs1(s1) | immed(true) | simm(simm13a, 13) ); |
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1505 } |
0 | 1506 |
1507 void restore( Register s1 = G0, Register s2 = G0, Register d = G0 ) { emit_long( op(arith_op) | rd(d) | op3(restore_op3) | rs1(s1) | rs2(s2) ); } | |
1508 void restore( Register s1, int simm13a, Register d ) { emit_long( op(arith_op) | rd(d) | op3(restore_op3) | rs1(s1) | immed(true) | simm(simm13a, 13) ); } | |
1509 | |
1510 // pp 216 | |
1511 | |
1512 void saved() { v9_only(); emit_long( op(arith_op) | fcn(0) | op3(saved_op3)); } | |
1513 void restored() { v9_only(); emit_long( op(arith_op) | fcn(1) | op3(saved_op3)); } | |
1514 | |
1515 // pp 217 | |
1516 | |
1517 inline void sethi( int imm22a, Register d, RelocationHolder const& rspec = RelocationHolder() ); | |
1518 // pp 218 | |
1519 | |
1520 void sll( Register s1, Register s2, Register d ) { emit_long( op(arith_op) | rd(d) | op3(sll_op3) | rs1(s1) | sx(0) | rs2(s2) ); } | |
1521 void sll( Register s1, int imm5a, Register d ) { emit_long( op(arith_op) | rd(d) | op3(sll_op3) | rs1(s1) | sx(0) | immed(true) | u_field(imm5a, 4, 0) ); } | |
1522 void srl( Register s1, Register s2, Register d ) { emit_long( op(arith_op) | rd(d) | op3(srl_op3) | rs1(s1) | sx(0) | rs2(s2) ); } | |
1523 void srl( Register s1, int imm5a, Register d ) { emit_long( op(arith_op) | rd(d) | op3(srl_op3) | rs1(s1) | sx(0) | immed(true) | u_field(imm5a, 4, 0) ); } | |
1524 void sra( Register s1, Register s2, Register d ) { emit_long( op(arith_op) | rd(d) | op3(sra_op3) | rs1(s1) | sx(0) | rs2(s2) ); } | |
1525 void sra( Register s1, int imm5a, Register d ) { emit_long( op(arith_op) | rd(d) | op3(sra_op3) | rs1(s1) | sx(0) | immed(true) | u_field(imm5a, 4, 0) ); } | |
1526 | |
1527 void sllx( Register s1, Register s2, Register d ) { v9_only(); emit_long( op(arith_op) | rd(d) | op3(sll_op3) | rs1(s1) | sx(1) | rs2(s2) ); } | |
1528 void sllx( Register s1, int imm6a, Register d ) { v9_only(); emit_long( op(arith_op) | rd(d) | op3(sll_op3) | rs1(s1) | sx(1) | immed(true) | u_field(imm6a, 5, 0) ); } | |
1529 void srlx( Register s1, Register s2, Register d ) { v9_only(); emit_long( op(arith_op) | rd(d) | op3(srl_op3) | rs1(s1) | sx(1) | rs2(s2) ); } | |
1530 void srlx( Register s1, int imm6a, Register d ) { v9_only(); emit_long( op(arith_op) | rd(d) | op3(srl_op3) | rs1(s1) | sx(1) | immed(true) | u_field(imm6a, 5, 0) ); } | |
1531 void srax( Register s1, Register s2, Register d ) { v9_only(); emit_long( op(arith_op) | rd(d) | op3(sra_op3) | rs1(s1) | sx(1) | rs2(s2) ); } | |
1532 void srax( Register s1, int imm6a, Register d ) { v9_only(); emit_long( op(arith_op) | rd(d) | op3(sra_op3) | rs1(s1) | sx(1) | immed(true) | u_field(imm6a, 5, 0) ); } | |
1533 | |
1534 // pp 220 | |
1535 | |
1536 void sir( int simm13a ) { emit_long( op(arith_op) | fcn(15) | op3(sir_op3) | immed(true) | simm(simm13a, 13)); } | |
1537 | |
1538 // pp 221 | |
1539 | |
1540 void stbar() { emit_long( op(arith_op) | op3(membar_op3) | u_field(15, 18, 14)); } | |
1541 | |
1542 // pp 222 | |
1543 | |
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1544 inline void stf( FloatRegisterImpl::Width w, FloatRegister d, Register s1, RegisterOrConstant s2); |
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1545 inline void stf( FloatRegisterImpl::Width w, FloatRegister d, Register s1, Register s2); |
0 | 1546 inline void stf( FloatRegisterImpl::Width w, FloatRegister d, Register s1, int simm13a); |
1547 inline void stf( FloatRegisterImpl::Width w, FloatRegister d, const Address& a, int offset = 0); | |
1548 | |
1549 inline void stfsr( Register s1, Register s2 ); | |
1550 inline void stfsr( Register s1, int simm13a); | |
1551 inline void stxfsr( Register s1, Register s2 ); | |
1552 inline void stxfsr( Register s1, int simm13a); | |
1553 | |
1554 // pp 224 | |
1555 | |
1556 void stfa( FloatRegisterImpl::Width w, FloatRegister d, Register s1, Register s2, int ia ) { v9_only(); emit_long( op(ldst_op) | fd(d, w) | alt_op3(stf_op3 | alt_bit_op3, w) | rs1(s1) | imm_asi(ia) | rs2(s2) ); } | |
1557 void stfa( FloatRegisterImpl::Width w, FloatRegister d, Register s1, int simm13a ) { v9_only(); emit_long( op(ldst_op) | fd(d, w) | alt_op3(stf_op3 | alt_bit_op3, w) | rs1(s1) | immed(true) | simm(simm13a, 13) ); } | |
1558 | |
1559 // p 226 | |
1560 | |
1561 inline void stb( Register d, Register s1, Register s2 ); | |
1562 inline void stb( Register d, Register s1, int simm13a); | |
1563 inline void sth( Register d, Register s1, Register s2 ); | |
1564 inline void sth( Register d, Register s1, int simm13a); | |
1565 inline void stw( Register d, Register s1, Register s2 ); | |
1566 inline void stw( Register d, Register s1, int simm13a); | |
1567 inline void st( Register d, Register s1, Register s2 ); | |
1568 inline void st( Register d, Register s1, int simm13a); | |
1569 inline void stx( Register d, Register s1, Register s2 ); | |
1570 inline void stx( Register d, Register s1, int simm13a); | |
1571 inline void std( Register d, Register s1, Register s2 ); | |
1572 inline void std( Register d, Register s1, int simm13a); | |
1573 | |
727 | 1574 #ifdef ASSERT |
1575 // ByteSize is only a class when ASSERT is defined, otherwise it's an int. | |
1576 inline void st( Register d, Register s1, ByteSize simm13a); | |
1577 #endif | |
1578 | |
0 | 1579 inline void stb( Register d, const Address& a, int offset = 0 ); |
1580 inline void sth( Register d, const Address& a, int offset = 0 ); | |
1581 inline void stw( Register d, const Address& a, int offset = 0 ); | |
1582 inline void stx( Register d, const Address& a, int offset = 0 ); | |
1583 inline void st( Register d, const Address& a, int offset = 0 ); | |
1584 inline void std( Register d, const Address& a, int offset = 0 ); | |
1585 | |
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1586 inline void stb( Register d, Register s1, RegisterOrConstant s2 ); |
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1587 inline void sth( Register d, Register s1, RegisterOrConstant s2 ); |
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1588 inline void stw( Register d, Register s1, RegisterOrConstant s2 ); |
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1589 inline void stx( Register d, Register s1, RegisterOrConstant s2 ); |
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1590 inline void std( Register d, Register s1, RegisterOrConstant s2 ); |
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1591 inline void st( Register d, Register s1, RegisterOrConstant s2 ); |
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1592 |
0 | 1593 // pp 177 |
1594 | |
1595 void stba( Register d, Register s1, Register s2, int ia ) { emit_long( op(ldst_op) | rd(d) | op3(stb_op3 | alt_bit_op3) | rs1(s1) | imm_asi(ia) | rs2(s2) ); } | |
1596 void stba( Register d, Register s1, int simm13a ) { emit_long( op(ldst_op) | rd(d) | op3(stb_op3 | alt_bit_op3) | rs1(s1) | immed(true) | simm(simm13a, 13) ); } | |
1597 void stha( Register d, Register s1, Register s2, int ia ) { emit_long( op(ldst_op) | rd(d) | op3(sth_op3 | alt_bit_op3) | rs1(s1) | imm_asi(ia) | rs2(s2) ); } | |
1598 void stha( Register d, Register s1, int simm13a ) { emit_long( op(ldst_op) | rd(d) | op3(sth_op3 | alt_bit_op3) | rs1(s1) | immed(true) | simm(simm13a, 13) ); } | |
1599 void stwa( Register d, Register s1, Register s2, int ia ) { emit_long( op(ldst_op) | rd(d) | op3(stw_op3 | alt_bit_op3) | rs1(s1) | imm_asi(ia) | rs2(s2) ); } | |
1600 void stwa( Register d, Register s1, int simm13a ) { emit_long( op(ldst_op) | rd(d) | op3(stw_op3 | alt_bit_op3) | rs1(s1) | immed(true) | simm(simm13a, 13) ); } | |
1601 void stxa( Register d, Register s1, Register s2, int ia ) { v9_only(); emit_long( op(ldst_op) | rd(d) | op3(stx_op3 | alt_bit_op3) | rs1(s1) | imm_asi(ia) | rs2(s2) ); } | |
1602 void stxa( Register d, Register s1, int simm13a ) { v9_only(); emit_long( op(ldst_op) | rd(d) | op3(stx_op3 | alt_bit_op3) | rs1(s1) | immed(true) | simm(simm13a, 13) ); } | |
1603 void stda( Register d, Register s1, Register s2, int ia ) { emit_long( op(ldst_op) | rd(d) | op3(std_op3 | alt_bit_op3) | rs1(s1) | imm_asi(ia) | rs2(s2) ); } | |
1604 void stda( Register d, Register s1, int simm13a ) { emit_long( op(ldst_op) | rd(d) | op3(std_op3 | alt_bit_op3) | rs1(s1) | immed(true) | simm(simm13a, 13) ); } | |
1605 | |
1606 // pp 97 (v8) | |
1607 | |
1608 inline void stc( int crd, Register s1, Register s2 ); | |
1609 inline void stc( int crd, Register s1, int simm13a); | |
1610 inline void stdc( int crd, Register s1, Register s2 ); | |
1611 inline void stdc( int crd, Register s1, int simm13a); | |
1612 inline void stcsr( int crd, Register s1, Register s2 ); | |
1613 inline void stcsr( int crd, Register s1, int simm13a); | |
1614 inline void stdcq( int crd, Register s1, Register s2 ); | |
1615 inline void stdcq( int crd, Register s1, int simm13a); | |
1616 | |
1617 // pp 230 | |
1618 | |
1619 void sub( Register s1, Register s2, Register d ) { emit_long( op(arith_op) | rd(d) | op3(sub_op3 ) | rs1(s1) | rs2(s2) ); } | |
1620 void sub( Register s1, int simm13a, Register d ) { emit_long( op(arith_op) | rd(d) | op3(sub_op3 ) | rs1(s1) | immed(true) | simm(simm13a, 13) ); } | |
1621 void subcc( Register s1, Register s2, Register d ) { emit_long( op(arith_op) | rd(d) | op3(sub_op3 | cc_bit_op3 ) | rs1(s1) | rs2(s2) ); } | |
1622 void subcc( Register s1, int simm13a, Register d ) { emit_long( op(arith_op) | rd(d) | op3(sub_op3 | cc_bit_op3 ) | rs1(s1) | immed(true) | simm(simm13a, 13) ); } | |
1623 void subc( Register s1, Register s2, Register d ) { emit_long( op(arith_op) | rd(d) | op3(subc_op3 ) | rs1(s1) | rs2(s2) ); } | |
1624 void subc( Register s1, int simm13a, Register d ) { emit_long( op(arith_op) | rd(d) | op3(subc_op3 ) | rs1(s1) | immed(true) | simm(simm13a, 13) ); } | |
1625 void subccc( Register s1, Register s2, Register d ) { emit_long( op(arith_op) | rd(d) | op3(subc_op3 | cc_bit_op3) | rs1(s1) | rs2(s2) ); } | |
1626 void subccc( Register s1, int simm13a, Register d ) { emit_long( op(arith_op) | rd(d) | op3(subc_op3 | cc_bit_op3) | rs1(s1) | immed(true) | simm(simm13a, 13) ); } | |
1627 | |
1628 // pp 231 | |
1629 | |
1630 inline void swap( Register s1, Register s2, Register d ); | |
1631 inline void swap( Register s1, int simm13a, Register d); | |
1632 inline void swap( Address& a, Register d, int offset = 0 ); | |
1633 | |
1634 // pp 232 | |
1635 | |
1636 void swapa( Register s1, Register s2, int ia, Register d ) { v9_dep(); emit_long( op(ldst_op) | rd(d) | op3(swap_op3 | alt_bit_op3) | rs1(s1) | imm_asi(ia) | rs2(s2) ); } | |
1637 void swapa( Register s1, int simm13a, Register d ) { v9_dep(); emit_long( op(ldst_op) | rd(d) | op3(swap_op3 | alt_bit_op3) | rs1(s1) | immed(true) | simm(simm13a, 13) ); } | |
1638 | |
1639 // pp 234, note op in book is wrong, see pp 268 | |
1640 | |
1641 void taddcc( Register s1, Register s2, Register d ) { emit_long( op(arith_op) | rd(d) | op3(taddcc_op3 ) | rs1(s1) | rs2(s2) ); } | |
1642 void taddcc( Register s1, int simm13a, Register d ) { emit_long( op(arith_op) | rd(d) | op3(taddcc_op3 ) | rs1(s1) | immed(true) | simm(simm13a, 13) ); } | |
1643 void taddcctv( Register s1, Register s2, Register d ) { v9_dep(); emit_long( op(arith_op) | rd(d) | op3(taddcctv_op3) | rs1(s1) | rs2(s2) ); } | |
1644 void taddcctv( Register s1, int simm13a, Register d ) { v9_dep(); emit_long( op(arith_op) | rd(d) | op3(taddcctv_op3) | rs1(s1) | immed(true) | simm(simm13a, 13) ); } | |
1645 | |
1646 // pp 235 | |
1647 | |
1648 void tsubcc( Register s1, Register s2, Register d ) { emit_long( op(arith_op) | rd(d) | op3(tsubcc_op3 ) | rs1(s1) | rs2(s2) ); } | |
1649 void tsubcc( Register s1, int simm13a, Register d ) { emit_long( op(arith_op) | rd(d) | op3(tsubcc_op3 ) | rs1(s1) | immed(true) | simm(simm13a, 13) ); } | |
1650 void tsubcctv( Register s1, Register s2, Register d ) { emit_long( op(arith_op) | rd(d) | op3(tsubcctv_op3) | rs1(s1) | rs2(s2) ); } | |
1651 void tsubcctv( Register s1, int simm13a, Register d ) { emit_long( op(arith_op) | rd(d) | op3(tsubcctv_op3) | rs1(s1) | immed(true) | simm(simm13a, 13) ); } | |
1652 | |
1653 // pp 237 | |
1654 | |
1655 void trap( Condition c, CC cc, Register s1, Register s2 ) { v8_no_cc(cc); emit_long( op(arith_op) | cond(c) | op3(trap_op3) | rs1(s1) | trapcc(cc) | rs2(s2)); } | |
1656 void trap( Condition c, CC cc, Register s1, int trapa ) { v8_no_cc(cc); emit_long( op(arith_op) | cond(c) | op3(trap_op3) | rs1(s1) | trapcc(cc) | immed(true) | u_field(trapa, 6, 0)); } | |
1657 // simple uncond. trap | |
1658 void trap( int trapa ) { trap( always, icc, G0, trapa ); } | |
1659 | |
1660 // pp 239 omit write priv register for now | |
1661 | |
1662 inline void wry( Register d) { v9_dep(); emit_long( op(arith_op) | rs1(d) | op3(wrreg_op3) | u_field(0, 29, 25)); } | |
1663 inline void wrccr(Register s) { v9_only(); emit_long( op(arith_op) | rs1(s) | op3(wrreg_op3) | u_field(2, 29, 25)); } | |
1664 inline void wrccr(Register s, int simm13a) { v9_only(); emit_long( op(arith_op) | | |
1665 rs1(s) | | |
1666 op3(wrreg_op3) | | |
1667 u_field(2, 29, 25) | | |
1668 u_field(1, 13, 13) | | |
1669 simm(simm13a, 13)); } | |
1670 inline void wrasi( Register d) { v9_only(); emit_long( op(arith_op) | rs1(d) | op3(wrreg_op3) | u_field(3, 29, 25)); } | |
1671 inline void wrfprs( Register d) { v9_only(); emit_long( op(arith_op) | rs1(d) | op3(wrreg_op3) | u_field(6, 29, 25)); } | |
1672 | |
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1673 // For a given register condition, return the appropriate condition code |
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1674 // Condition (the one you would use to get the same effect after "tst" on |
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1675 // the target register.) |
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1676 Assembler::Condition reg_cond_to_cc_cond(RCondition in); |
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1677 |
0 | 1678 |
1679 // Creation | |
1680 Assembler(CodeBuffer* code) : AbstractAssembler(code) { | |
1681 #ifdef CHECK_DELAY | |
1682 delay_state = no_delay; | |
1683 #endif | |
1684 } | |
1685 | |
1686 // Testing | |
1687 #ifndef PRODUCT | |
1688 void test_v9(); | |
1689 void test_v8_onlys(); | |
1690 #endif | |
1691 }; | |
1692 | |
1693 | |
1694 class RegistersForDebugging : public StackObj { | |
1695 public: | |
1696 intptr_t i[8], l[8], o[8], g[8]; | |
1697 float f[32]; | |
1698 double d[32]; | |
1699 | |
1700 void print(outputStream* s); | |
1701 | |
1702 static int i_offset(int j) { return offset_of(RegistersForDebugging, i[j]); } | |
1703 static int l_offset(int j) { return offset_of(RegistersForDebugging, l[j]); } | |
1704 static int o_offset(int j) { return offset_of(RegistersForDebugging, o[j]); } | |
1705 static int g_offset(int j) { return offset_of(RegistersForDebugging, g[j]); } | |
1706 static int f_offset(int j) { return offset_of(RegistersForDebugging, f[j]); } | |
1707 static int d_offset(int j) { return offset_of(RegistersForDebugging, d[j / 2]); } | |
1708 | |
1709 // gen asm code to save regs | |
1710 static void save_registers(MacroAssembler* a); | |
1711 | |
1712 // restore global registers in case C code disturbed them | |
1713 static void restore_registers(MacroAssembler* a, Register r); | |
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1714 |
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1715 |
0 | 1716 }; |
1717 | |
1718 | |
1719 // MacroAssembler extends Assembler by a few frequently used macros. | |
1720 // | |
1721 // Most of the standard SPARC synthetic ops are defined here. | |
1722 // Instructions for which a 'better' code sequence exists depending | |
1723 // on arguments should also go in here. | |
1724 | |
1725 #define JMP2(r1, r2) jmp(r1, r2, __FILE__, __LINE__) | |
1726 #define JMP(r1, off) jmp(r1, off, __FILE__, __LINE__) | |
727 | 1727 #define JUMP(a, temp, off) jump(a, temp, off, __FILE__, __LINE__) |
1728 #define JUMPL(a, temp, d, off) jumpl(a, temp, d, off, __FILE__, __LINE__) | |
0 | 1729 |
1730 | |
1731 class MacroAssembler: public Assembler { | |
1732 protected: | |
1733 // Support for VM calls | |
1734 // This is the base routine called by the different versions of call_VM_leaf. The interpreter | |
1735 // may customize this version by overriding it for its purposes (e.g., to save/restore | |
1736 // additional registers when doing a VM call). | |
1737 #ifdef CC_INTERP | |
1738 #define VIRTUAL | |
1739 #else | |
1740 #define VIRTUAL virtual | |
1741 #endif | |
1742 | |
1743 VIRTUAL void call_VM_leaf_base(Register thread_cache, address entry_point, int number_of_arguments); | |
1744 | |
1745 // | |
1746 // It is imperative that all calls into the VM are handled via the call_VM macros. | |
1747 // They make sure that the stack linkage is setup correctly. call_VM's correspond | |
1748 // to ENTRY/ENTRY_X entry points while call_VM_leaf's correspond to LEAF entry points. | |
1749 // | |
1750 // This is the base routine called by the different versions of call_VM. The interpreter | |
1751 // may customize this version by overriding it for its purposes (e.g., to save/restore | |
1752 // additional registers when doing a VM call). | |
1753 // | |
1754 // A non-volatile java_thread_cache register should be specified so | |
1755 // that the G2_thread value can be preserved across the call. | |
1756 // (If java_thread_cache is noreg, then a slow get_thread call | |
1757 // will re-initialize the G2_thread.) call_VM_base returns the register that contains the | |
1758 // thread. | |
1759 // | |
1760 // If no last_java_sp is specified (noreg) than SP will be used instead. | |
1761 | |
1762 virtual void call_VM_base( | |
1763 Register oop_result, // where an oop-result ends up if any; use noreg otherwise | |
1764 Register java_thread_cache, // the thread if computed before ; use noreg otherwise | |
1765 Register last_java_sp, // to set up last_Java_frame in stubs; use noreg otherwise | |
1766 address entry_point, // the entry point | |
1767 int number_of_arguments, // the number of arguments (w/o thread) to pop after call | |
1768 bool check_exception=true // flag which indicates if exception should be checked | |
1769 ); | |
1770 | |
1771 // This routine should emit JVMTI PopFrame and ForceEarlyReturn handling code. | |
1772 // The implementation is only non-empty for the InterpreterMacroAssembler, | |
1773 // as only the interpreter handles and ForceEarlyReturn PopFrame requests. | |
1774 virtual void check_and_handle_popframe(Register scratch_reg); | |
1775 virtual void check_and_handle_earlyret(Register scratch_reg); | |
1776 | |
1777 public: | |
1778 MacroAssembler(CodeBuffer* code) : Assembler(code) {} | |
1779 | |
1780 // Support for NULL-checks | |
1781 // | |
1782 // Generates code that causes a NULL OS exception if the content of reg is NULL. | |
1783 // If the accessed location is M[reg + offset] and the offset is known, provide the | |
1784 // offset. No explicit code generation is needed if the offset is within a certain | |
1785 // range (0 <= offset <= page_size). | |
1786 // | |
1787 // %%%%%% Currently not done for SPARC | |
1788 | |
1789 void null_check(Register reg, int offset = -1); | |
1790 static bool needs_explicit_null_check(intptr_t offset); | |
1791 | |
1792 // support for delayed instructions | |
1793 MacroAssembler* delayed() { Assembler::delayed(); return this; } | |
1794 | |
1795 // branches that use right instruction for v8 vs. v9 | |
1796 inline void br( Condition c, bool a, Predict p, address d, relocInfo::relocType rt = relocInfo::none ); | |
1797 inline void br( Condition c, bool a, Predict p, Label& L ); | |
1798 inline void fb( Condition c, bool a, Predict p, address d, relocInfo::relocType rt = relocInfo::none ); | |
1799 inline void fb( Condition c, bool a, Predict p, Label& L ); | |
1800 | |
1801 // compares register with zero and branches (V9 and V8 instructions) | |
1802 void br_zero( Condition c, bool a, Predict p, Register s1, Label& L); | |
1803 // Compares a pointer register with zero and branches on (not)null. | |
1804 // Does a test & branch on 32-bit systems and a register-branch on 64-bit. | |
1805 void br_null ( Register s1, bool a, Predict p, Label& L ); | |
1806 void br_notnull( Register s1, bool a, Predict p, Label& L ); | |
1807 | |
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1808 // These versions will do the most efficient thing on v8 and v9. Perhaps |
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1809 // this is what the routine above was meant to do, but it didn't (and |
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1810 // didn't cover both target address kinds.) |
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1811 void br_on_reg_cond( RCondition c, bool a, Predict p, Register s1, address d, relocInfo::relocType rt = relocInfo::none ); |
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1812 void br_on_reg_cond( RCondition c, bool a, Predict p, Register s1, Label& L); |
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1813 |
0 | 1814 inline void bp( Condition c, bool a, CC cc, Predict p, address d, relocInfo::relocType rt = relocInfo::none ); |
1815 inline void bp( Condition c, bool a, CC cc, Predict p, Label& L ); | |
1816 | |
1817 // Branch that tests xcc in LP64 and icc in !LP64 | |
1818 inline void brx( Condition c, bool a, Predict p, address d, relocInfo::relocType rt = relocInfo::none ); | |
1819 inline void brx( Condition c, bool a, Predict p, Label& L ); | |
1820 | |
1821 // unconditional short branch | |
1822 inline void ba( bool a, Label& L ); | |
1823 | |
1824 // Branch that tests fp condition codes | |
1825 inline void fbp( Condition c, bool a, CC cc, Predict p, address d, relocInfo::relocType rt = relocInfo::none ); | |
1826 inline void fbp( Condition c, bool a, CC cc, Predict p, Label& L ); | |
1827 | |
1828 // get PC the best way | |
1829 inline int get_pc( Register d ); | |
1830 | |
1831 // Sparc shorthands(pp 85, V8 manual, pp 289 V9 manual) | |
1832 inline void cmp( Register s1, Register s2 ) { subcc( s1, s2, G0 ); } | |
1833 inline void cmp( Register s1, int simm13a ) { subcc( s1, simm13a, G0 ); } | |
1834 | |
1835 inline void jmp( Register s1, Register s2 ); | |
1836 inline void jmp( Register s1, int simm13a, RelocationHolder const& rspec = RelocationHolder() ); | |
1837 | |
1838 inline void call( address d, relocInfo::relocType rt = relocInfo::runtime_call_type ); | |
1839 inline void call( Label& L, relocInfo::relocType rt = relocInfo::runtime_call_type ); | |
1840 inline void callr( Register s1, Register s2 ); | |
1841 inline void callr( Register s1, int simm13a, RelocationHolder const& rspec = RelocationHolder() ); | |
1842 | |
1843 // Emits nothing on V8 | |
1844 inline void iprefetch( address d, relocInfo::relocType rt = relocInfo::none ); | |
1845 inline void iprefetch( Label& L); | |
1846 | |
1847 inline void tst( Register s ) { orcc( G0, s, G0 ); } | |
1848 | |
1849 #ifdef PRODUCT | |
1850 inline void ret( bool trace = TraceJumps ) { if (trace) { | |
1851 mov(I7, O7); // traceable register | |
1852 JMP(O7, 2 * BytesPerInstWord); | |
1853 } else { | |
1854 jmpl( I7, 2 * BytesPerInstWord, G0 ); | |
1855 } | |
1856 } | |
1857 | |
1858 inline void retl( bool trace = TraceJumps ) { if (trace) JMP(O7, 2 * BytesPerInstWord); | |
1859 else jmpl( O7, 2 * BytesPerInstWord, G0 ); } | |
1860 #else | |
1861 void ret( bool trace = TraceJumps ); | |
1862 void retl( bool trace = TraceJumps ); | |
1863 #endif /* PRODUCT */ | |
1864 | |
1865 // Required platform-specific helpers for Label::patch_instructions. | |
1866 // They _shadow_ the declarations in AbstractAssembler, which are undefined. | |
1867 void pd_patch_instruction(address branch, address target); | |
1868 #ifndef PRODUCT | |
1869 static void pd_print_patched_instruction(address branch); | |
1870 #endif | |
1871 | |
1872 // sethi Macro handles optimizations and relocations | |
727 | 1873 private: |
1874 void internal_sethi(const AddressLiteral& addrlit, Register d, bool ForceRelocatable); | |
1875 public: | |
1876 void sethi(const AddressLiteral& addrlit, Register d); | |
1877 void patchable_sethi(const AddressLiteral& addrlit, Register d); | |
0 | 1878 |
1879 // compute the size of a sethi/set | |
1880 static int size_of_sethi( address a, bool worst_case = false ); | |
1881 static int worst_case_size_of_set(); | |
1882 | |
1883 // set may be either setsw or setuw (high 32 bits may be zero or sign) | |
727 | 1884 private: |
1885 void internal_set(const AddressLiteral& al, Register d, bool ForceRelocatable); | |
1886 public: | |
1887 void set(const AddressLiteral& addrlit, Register d); | |
1888 void set(intptr_t value, Register d); | |
1889 void set(address addr, Register d, RelocationHolder const& rspec); | |
1890 void patchable_set(const AddressLiteral& addrlit, Register d); | |
1891 void patchable_set(intptr_t value, Register d); | |
1892 void set64(jlong value, Register d, Register tmp); | |
0 | 1893 |
1894 // sign-extend 32 to 64 | |
1895 inline void signx( Register s, Register d ) { sra( s, G0, d); } | |
1896 inline void signx( Register d ) { sra( d, G0, d); } | |
1897 | |
1898 inline void not1( Register s, Register d ) { xnor( s, G0, d ); } | |
1899 inline void not1( Register d ) { xnor( d, G0, d ); } | |
1900 | |
1901 inline void neg( Register s, Register d ) { sub( G0, s, d ); } | |
1902 inline void neg( Register d ) { sub( G0, d, d ); } | |
1903 | |
1904 inline void cas( Register s1, Register s2, Register d) { casa( s1, s2, d, ASI_PRIMARY); } | |
1905 inline void casx( Register s1, Register s2, Register d) { casxa(s1, s2, d, ASI_PRIMARY); } | |
1906 // Functions for isolating 64 bit atomic swaps for LP64 | |
1907 // cas_ptr will perform cas for 32 bit VM's and casx for 64 bit VM's | |
1908 inline void cas_ptr( Register s1, Register s2, Register d) { | |
1909 #ifdef _LP64 | |
1910 casx( s1, s2, d ); | |
1911 #else | |
1912 cas( s1, s2, d ); | |
1913 #endif | |
1914 } | |
1915 | |
1916 // Functions for isolating 64 bit shifts for LP64 | |
1917 inline void sll_ptr( Register s1, Register s2, Register d ); | |
1918 inline void sll_ptr( Register s1, int imm6a, Register d ); | |
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1919 inline void sll_ptr( Register s1, RegisterOrConstant s2, Register d ); |
0 | 1920 inline void srl_ptr( Register s1, Register s2, Register d ); |
1921 inline void srl_ptr( Register s1, int imm6a, Register d ); | |
1922 | |
1923 // little-endian | |
1924 inline void casl( Register s1, Register s2, Register d) { casa( s1, s2, d, ASI_PRIMARY_LITTLE); } | |
1925 inline void casxl( Register s1, Register s2, Register d) { casxa(s1, s2, d, ASI_PRIMARY_LITTLE); } | |
1926 | |
1927 inline void inc( Register d, int const13 = 1 ) { add( d, const13, d); } | |
1928 inline void inccc( Register d, int const13 = 1 ) { addcc( d, const13, d); } | |
1929 | |
1930 inline void dec( Register d, int const13 = 1 ) { sub( d, const13, d); } | |
1931 inline void deccc( Register d, int const13 = 1 ) { subcc( d, const13, d); } | |
1932 | |
1933 inline void btst( Register s1, Register s2 ) { andcc( s1, s2, G0 ); } | |
1934 inline void btst( int simm13a, Register s ) { andcc( s, simm13a, G0 ); } | |
1935 | |
1936 inline void bset( Register s1, Register s2 ) { or3( s1, s2, s2 ); } | |
1937 inline void bset( int simm13a, Register s ) { or3( s, simm13a, s ); } | |
1938 | |
1939 inline void bclr( Register s1, Register s2 ) { andn( s1, s2, s2 ); } | |
1940 inline void bclr( int simm13a, Register s ) { andn( s, simm13a, s ); } | |
1941 | |
1942 inline void btog( Register s1, Register s2 ) { xor3( s1, s2, s2 ); } | |
1943 inline void btog( int simm13a, Register s ) { xor3( s, simm13a, s ); } | |
1944 | |
1945 inline void clr( Register d ) { or3( G0, G0, d ); } | |
1946 | |
1947 inline void clrb( Register s1, Register s2); | |
1948 inline void clrh( Register s1, Register s2); | |
1949 inline void clr( Register s1, Register s2); | |
1950 inline void clrx( Register s1, Register s2); | |
1951 | |
1952 inline void clrb( Register s1, int simm13a); | |
1953 inline void clrh( Register s1, int simm13a); | |
1954 inline void clr( Register s1, int simm13a); | |
1955 inline void clrx( Register s1, int simm13a); | |
1956 | |
1957 // copy & clear upper word | |
1958 inline void clruw( Register s, Register d ) { srl( s, G0, d); } | |
1959 // clear upper word | |
1960 inline void clruwu( Register d ) { srl( d, G0, d); } | |
1961 | |
1962 // membar psuedo instruction. takes into account target memory model. | |
1963 inline void membar( Assembler::Membar_mask_bits const7a ); | |
1964 | |
1965 // returns if membar generates anything. | |
1966 inline bool membar_has_effect( Assembler::Membar_mask_bits const7a ); | |
1967 | |
1968 // mov pseudo instructions | |
1969 inline void mov( Register s, Register d) { | |
1970 if ( s != d ) or3( G0, s, d); | |
1971 else assert_not_delayed(); // Put something useful in the delay slot! | |
1972 } | |
1973 | |
1974 inline void mov_or_nop( Register s, Register d) { | |
1975 if ( s != d ) or3( G0, s, d); | |
1976 else nop(); | |
1977 } | |
1978 | |
1979 inline void mov( int simm13a, Register d) { or3( G0, simm13a, d); } | |
1980 | |
1981 // address pseudos: make these names unlike instruction names to avoid confusion | |
1982 inline intptr_t load_pc_address( Register reg, int bytes_to_skip ); | |
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1983 inline void load_contents(const AddressLiteral& addrlit, Register d, int offset = 0); |
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1984 inline void load_ptr_contents(const AddressLiteral& addrlit, Register d, int offset = 0); |
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1985 inline void store_contents(Register s, const AddressLiteral& addrlit, Register temp, int offset = 0); |
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1986 inline void store_ptr_contents(Register s, const AddressLiteral& addrlit, Register temp, int offset = 0); |
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1987 inline void jumpl_to(const AddressLiteral& addrlit, Register temp, Register d, int offset = 0); |
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1988 inline void jump_to(const AddressLiteral& addrlit, Register temp, int offset = 0); |
727 | 1989 inline void jump_indirect_to(Address& a, Register temp, int ld_offset = 0, int jmp_offset = 0); |
0 | 1990 |
1991 // ring buffer traceable jumps | |
1992 | |
1993 void jmp2( Register r1, Register r2, const char* file, int line ); | |
1994 void jmp ( Register r1, int offset, const char* file, int line ); | |
1995 | |
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1996 void jumpl(const AddressLiteral& addrlit, Register temp, Register d, int offset, const char* file, int line); |
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1997 void jump (const AddressLiteral& addrlit, Register temp, int offset, const char* file, int line); |
0 | 1998 |
1999 | |
2000 // argument pseudos: | |
2001 | |
2002 inline void load_argument( Argument& a, Register d ); | |
2003 inline void store_argument( Register s, Argument& a ); | |
2004 inline void store_ptr_argument( Register s, Argument& a ); | |
2005 inline void store_float_argument( FloatRegister s, Argument& a ); | |
2006 inline void store_double_argument( FloatRegister s, Argument& a ); | |
2007 inline void store_long_argument( Register s, Argument& a ); | |
2008 | |
2009 // handy macros: | |
2010 | |
2011 inline void round_to( Register r, int modulus ) { | |
2012 assert_not_delayed(); | |
2013 inc( r, modulus - 1 ); | |
2014 and3( r, -modulus, r ); | |
2015 } | |
2016 | |
2017 // -------------------------------------------------- | |
2018 | |
2019 // Functions for isolating 64 bit loads for LP64 | |
2020 // ld_ptr will perform ld for 32 bit VM's and ldx for 64 bit VM's | |
2021 // st_ptr will perform st for 32 bit VM's and stx for 64 bit VM's | |
727 | 2022 inline void ld_ptr(Register s1, Register s2, Register d); |
2023 inline void ld_ptr(Register s1, int simm13a, Register d); | |
2024 inline void ld_ptr(Register s1, RegisterOrConstant s2, Register d); | |
2025 inline void ld_ptr(const Address& a, Register d, int offset = 0); | |
2026 inline void st_ptr(Register d, Register s1, Register s2); | |
2027 inline void st_ptr(Register d, Register s1, int simm13a); | |
2028 inline void st_ptr(Register d, Register s1, RegisterOrConstant s2); | |
2029 inline void st_ptr(Register d, const Address& a, int offset = 0); | |
2030 | |
2031 #ifdef ASSERT | |
2032 // ByteSize is only a class when ASSERT is defined, otherwise it's an int. | |
2033 inline void ld_ptr(Register s1, ByteSize simm13a, Register d); | |
2034 inline void st_ptr(Register d, Register s1, ByteSize simm13a); | |
2035 #endif | |
0 | 2036 |
1503 | 2037 // ld_long will perform ldd for 32 bit VM's and ldx for 64 bit VM's |
2038 // st_long will perform std for 32 bit VM's and stx for 64 bit VM's | |
727 | 2039 inline void ld_long(Register s1, Register s2, Register d); |
2040 inline void ld_long(Register s1, int simm13a, Register d); | |
2041 inline void ld_long(Register s1, RegisterOrConstant s2, Register d); | |
2042 inline void ld_long(const Address& a, Register d, int offset = 0); | |
2043 inline void st_long(Register d, Register s1, Register s2); | |
2044 inline void st_long(Register d, Register s1, int simm13a); | |
2045 inline void st_long(Register d, Register s1, RegisterOrConstant s2); | |
2046 inline void st_long(Register d, const Address& a, int offset = 0); | |
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2047 |
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2048 // Helpers for address formation. |
1503 | 2049 // - They emit only a move if s2 is a constant zero. |
2050 // - If dest is a constant and either s1 or s2 is a register, the temp argument is required and becomes the result. | |
2051 // - If dest is a register and either s1 or s2 is a non-simm13 constant, the temp argument is required and used to materialize the constant. | |
2052 RegisterOrConstant regcon_andn_ptr(RegisterOrConstant s1, RegisterOrConstant s2, RegisterOrConstant d, Register temp = noreg); | |
2053 RegisterOrConstant regcon_inc_ptr( RegisterOrConstant s1, RegisterOrConstant s2, RegisterOrConstant d, Register temp = noreg); | |
2054 RegisterOrConstant regcon_sll_ptr( RegisterOrConstant s1, RegisterOrConstant s2, RegisterOrConstant d, Register temp = noreg); | |
2055 | |
2056 RegisterOrConstant ensure_simm13_or_reg(RegisterOrConstant src, Register temp) { | |
2057 if (is_simm13(src.constant_or_zero())) | |
2058 return src; // register or short constant | |
2059 guarantee(temp != noreg, "constant offset overflow"); | |
2060 set(src.as_constant(), temp); | |
2061 return temp; | |
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2062 } |
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2063 |
0 | 2064 // -------------------------------------------------- |
2065 | |
2066 public: | |
2067 // traps as per trap.h (SPARC ABI?) | |
2068 | |
2069 void breakpoint_trap(); | |
2070 void breakpoint_trap(Condition c, CC cc = icc); | |
2071 void flush_windows_trap(); | |
2072 void clean_windows_trap(); | |
2073 void get_psr_trap(); | |
2074 void set_psr_trap(); | |
2075 | |
2076 // V8/V9 flush_windows | |
2077 void flush_windows(); | |
2078 | |
2079 // Support for serializing memory accesses between threads | |
2080 void serialize_memory(Register thread, Register tmp1, Register tmp2); | |
2081 | |
2082 // Stack frame creation/removal | |
2083 void enter(); | |
2084 void leave(); | |
2085 | |
2086 // V8/V9 integer multiply | |
2087 void mult(Register s1, Register s2, Register d); | |
2088 void mult(Register s1, int simm13a, Register d); | |
2089 | |
2090 // V8/V9 read and write of condition codes. | |
2091 void read_ccr(Register d); | |
2092 void write_ccr(Register s); | |
2093 | |
2094 // Manipulation of C++ bools | |
2095 // These are idioms to flag the need for care with accessing bools but on | |
2096 // this platform we assume byte size | |
2097 | |
727 | 2098 inline void stbool(Register d, const Address& a) { stb(d, a); } |
2099 inline void ldbool(const Address& a, Register d) { ldsb(a, d); } | |
0 | 2100 inline void tstbool( Register s ) { tst(s); } |
2101 inline void movbool( bool boolconst, Register d) { mov( (int) boolconst, d); } | |
2102 | |
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2103 // klass oop manipulations if compressed |
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2104 void load_klass(Register src_oop, Register klass); |
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2105 void store_klass(Register klass, Register dst_oop); |
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2106 void store_klass_gap(Register s, Register dst_oop); |
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2107 |
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2108 // oop manipulations |
727 | 2109 void load_heap_oop(const Address& s, Register d); |
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2110 void load_heap_oop(Register s1, Register s2, Register d); |
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2111 void load_heap_oop(Register s1, int simm13a, Register d); |
1846 | 2112 void load_heap_oop(Register s1, RegisterOrConstant s2, Register d); |
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2113 void store_heap_oop(Register d, Register s1, Register s2); |
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2114 void store_heap_oop(Register d, Register s1, int simm13a); |
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2115 void store_heap_oop(Register d, const Address& a, int offset = 0); |
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2116 |
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2117 void encode_heap_oop(Register src, Register dst); |
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2118 void encode_heap_oop(Register r) { |
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2119 encode_heap_oop(r, r); |
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2120 } |
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2121 void decode_heap_oop(Register src, Register dst); |
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2122 void decode_heap_oop(Register r) { |
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2123 decode_heap_oop(r, r); |
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2124 } |
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2125 void encode_heap_oop_not_null(Register r); |
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2126 void decode_heap_oop_not_null(Register r); |
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2127 void encode_heap_oop_not_null(Register src, Register dst); |
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2128 void decode_heap_oop_not_null(Register src, Register dst); |
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2129 |
0 | 2130 // Support for managing the JavaThread pointer (i.e.; the reference to |
2131 // thread-local information). | |
2132 void get_thread(); // load G2_thread | |
2133 void verify_thread(); // verify G2_thread contents | |
2134 void save_thread (const Register threache); // save to cache | |
2135 void restore_thread(const Register thread_cache); // restore from cache | |
2136 | |
2137 // Support for last Java frame (but use call_VM instead where possible) | |
2138 void set_last_Java_frame(Register last_java_sp, Register last_Java_pc); | |
2139 void reset_last_Java_frame(void); | |
2140 | |
2141 // Call into the VM. | |
2142 // Passes the thread pointer (in O0) as a prepended argument. | |
2143 // Makes sure oop return values are visible to the GC. | |
2144 void call_VM(Register oop_result, address entry_point, int number_of_arguments = 0, bool check_exceptions = true); | |
2145 void call_VM(Register oop_result, address entry_point, Register arg_1, bool check_exceptions = true); | |
2146 void call_VM(Register oop_result, address entry_point, Register arg_1, Register arg_2, bool check_exceptions = true); | |
2147 void call_VM(Register oop_result, address entry_point, Register arg_1, Register arg_2, Register arg_3, bool check_exceptions = true); | |
2148 | |
2149 // these overloadings are not presently used on SPARC: | |
2150 void call_VM(Register oop_result, Register last_java_sp, address entry_point, int number_of_arguments = 0, bool check_exceptions = true); | |
2151 void call_VM(Register oop_result, Register last_java_sp, address entry_point, Register arg_1, bool check_exceptions = true); | |
2152 void call_VM(Register oop_result, Register last_java_sp, address entry_point, Register arg_1, Register arg_2, bool check_exceptions = true); | |
2153 void 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); | |
2154 | |
2155 void call_VM_leaf(Register thread_cache, address entry_point, int number_of_arguments = 0); | |
2156 void call_VM_leaf(Register thread_cache, address entry_point, Register arg_1); | |
2157 void call_VM_leaf(Register thread_cache, address entry_point, Register arg_1, Register arg_2); | |
2158 void call_VM_leaf(Register thread_cache, address entry_point, Register arg_1, Register arg_2, Register arg_3); | |
2159 | |
2160 void get_vm_result (Register oop_result); | |
2161 void get_vm_result_2(Register oop_result); | |
2162 | |
2163 // vm result is currently getting hijacked to for oop preservation | |
2164 void set_vm_result(Register oop_result); | |
2165 | |
2166 // if call_VM_base was called with check_exceptions=false, then call | |
2167 // check_and_forward_exception to handle exceptions when it is safe | |
2168 void check_and_forward_exception(Register scratch_reg); | |
2169 | |
2170 private: | |
2171 // For V8 | |
2172 void read_ccr_trap(Register ccr_save); | |
2173 void write_ccr_trap(Register ccr_save1, Register scratch1, Register scratch2); | |
2174 | |
2175 #ifdef ASSERT | |
2176 // For V8 debugging. Uses V8 instruction sequence and checks | |
2177 // result with V9 insturctions rdccr and wrccr. | |
2178 // Uses Gscatch and Gscatch2 | |
2179 void read_ccr_v8_assert(Register ccr_save); | |
2180 void write_ccr_v8_assert(Register ccr_save); | |
2181 #endif // ASSERT | |
2182 | |
2183 public: | |
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2184 |
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2185 // Write to card table for - register is destroyed afterwards. |
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2186 void card_table_write(jbyte* byte_map_base, Register tmp, Register obj); |
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2187 |
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2188 void card_write_barrier_post(Register store_addr, Register new_val, Register tmp); |
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2189 |
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2190 #ifndef SERIALGC |
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2191 // Array store and offset |
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2192 void g1_write_barrier_pre(Register obj, Register index, int offset, Register tmp, bool preserve_o_regs); |
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2193 |
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2194 void g1_write_barrier_post(Register store_addr, Register new_val, Register tmp); |
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2195 |
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2196 // May do filtering, depending on the boolean arguments. |
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2197 void g1_card_table_write(jbyte* byte_map_base, |
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2198 Register tmp, Register obj, Register new_val, |
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2199 bool region_filter, bool null_filter); |
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2200 #endif // SERIALGC |
0 | 2201 |
2202 // pushes double TOS element of FPU stack on CPU stack; pops from FPU stack | |
2203 void push_fTOS(); | |
2204 | |
2205 // pops double TOS element from CPU stack and pushes on FPU stack | |
2206 void pop_fTOS(); | |
2207 | |
2208 void empty_FPU_stack(); | |
2209 | |
2210 void push_IU_state(); | |
2211 void pop_IU_state(); | |
2212 | |
2213 void push_FPU_state(); | |
2214 void pop_FPU_state(); | |
2215 | |
2216 void push_CPU_state(); | |
2217 void pop_CPU_state(); | |
2218 | |
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2219 // if heap base register is used - reinit it with the correct value |
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2220 void reinit_heapbase(); |
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2221 |
0 | 2222 // Debugging |
2223 void _verify_oop(Register reg, const char * msg, const char * file, int line); | |
2224 void _verify_oop_addr(Address addr, const char * msg, const char * file, int line); | |
2225 | |
2226 #define verify_oop(reg) _verify_oop(reg, "broken oop " #reg, __FILE__, __LINE__) | |
2227 #define verify_oop_addr(addr) _verify_oop_addr(addr, "broken oop addr ", __FILE__, __LINE__) | |
2228 | |
2229 // only if +VerifyOops | |
2230 void verify_FPU(int stack_depth, const char* s = "illegal FPU state"); | |
2231 // only if +VerifyFPU | |
2232 void stop(const char* msg); // prints msg, dumps registers and stops execution | |
2233 void warn(const char* msg); // prints msg, but don't stop | |
2234 void untested(const char* what = ""); | |
1846 | 2235 void unimplemented(const char* what = "") { char* b = new char[1024]; jio_snprintf(b, 1024, "unimplemented: %s", what); stop(b); } |
0 | 2236 void should_not_reach_here() { stop("should not reach here"); } |
2237 void print_CPU_state(); | |
2238 | |
2239 // oops in code | |
727 | 2240 AddressLiteral allocate_oop_address(jobject obj); // allocate_index |
2241 AddressLiteral constant_oop_address(jobject obj); // find_index | |
2242 inline void set_oop (jobject obj, Register d); // uses allocate_oop_address | |
2243 inline void set_oop_constant (jobject obj, Register d); // uses constant_oop_address | |
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2244 inline void set_oop (const AddressLiteral& obj_addr, Register d); // same as load_address |
0 | 2245 |
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2246 void set_narrow_oop( jobject obj, Register d ); |
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2247 |
0 | 2248 // nop padding |
2249 void align(int modulus); | |
2250 | |
2251 // declare a safepoint | |
2252 void safepoint(); | |
2253 | |
2254 // factor out part of stop into subroutine to save space | |
2255 void stop_subroutine(); | |
2256 // factor out part of verify_oop into subroutine to save space | |
2257 void verify_oop_subroutine(); | |
2258 | |
2259 // side-door communication with signalHandler in os_solaris.cpp | |
2260 static address _verify_oop_implicit_branch[3]; | |
2261 | |
2262 #ifndef PRODUCT | |
2263 static void test(); | |
2264 #endif | |
2265 | |
2266 // convert an incoming arglist to varargs format; put the pointer in d | |
2267 void set_varargs( Argument a, Register d ); | |
2268 | |
2269 int total_frame_size_in_bytes(int extraWords); | |
2270 | |
2271 // used when extraWords known statically | |
2272 void save_frame(int extraWords); | |
2273 void save_frame_c1(int size_in_bytes); | |
2274 // make a frame, and simultaneously pass up one or two register value | |
2275 // into the new register window | |
2276 void save_frame_and_mov(int extraWords, Register s1, Register d1, Register s2 = Register(), Register d2 = Register()); | |
2277 | |
2278 // give no. (outgoing) params, calc # of words will need on frame | |
2279 void calc_mem_param_words(Register Rparam_words, Register Rresult); | |
2280 | |
2281 // used to calculate frame size dynamically | |
2282 // result is in bytes and must be negated for save inst | |
2283 void calc_frame_size(Register extraWords, Register resultReg); | |
2284 | |
2285 // calc and also save | |
2286 void calc_frame_size_and_save(Register extraWords, Register resultReg); | |
2287 | |
2288 static void debug(char* msg, RegistersForDebugging* outWindow); | |
2289 | |
2290 // implementations of bytecodes used by both interpreter and compiler | |
2291 | |
2292 void lcmp( Register Ra_hi, Register Ra_low, | |
2293 Register Rb_hi, Register Rb_low, | |
2294 Register Rresult); | |
2295 | |
2296 void lneg( Register Rhi, Register Rlow ); | |
2297 | |
2298 void lshl( Register Rin_high, Register Rin_low, Register Rcount, | |
2299 Register Rout_high, Register Rout_low, Register Rtemp ); | |
2300 | |
2301 void lshr( Register Rin_high, Register Rin_low, Register Rcount, | |
2302 Register Rout_high, Register Rout_low, Register Rtemp ); | |
2303 | |
2304 void lushr( Register Rin_high, Register Rin_low, Register Rcount, | |
2305 Register Rout_high, Register Rout_low, Register Rtemp ); | |
2306 | |
2307 #ifdef _LP64 | |
2308 void lcmp( Register Ra, Register Rb, Register Rresult); | |
2309 #endif | |
2310 | |
1503 | 2311 // Loading values by size and signed-ness |
2312 void load_sized_value(Address src, Register dst, size_t size_in_bytes, bool is_signed); | |
2313 | |
0 | 2314 void float_cmp( bool is_float, int unordered_result, |
2315 FloatRegister Fa, FloatRegister Fb, | |
2316 Register Rresult); | |
2317 | |
2318 void fneg( FloatRegisterImpl::Width w, FloatRegister s, FloatRegister d); | |
2319 void fneg( FloatRegisterImpl::Width w, FloatRegister sd ) { Assembler::fneg(w, sd); } | |
2320 void fmov( FloatRegisterImpl::Width w, FloatRegister s, FloatRegister d); | |
2321 void fabs( FloatRegisterImpl::Width w, FloatRegister s, FloatRegister d); | |
2322 | |
2323 void save_all_globals_into_locals(); | |
2324 void restore_globals_from_locals(); | |
2325 | |
2326 void casx_under_lock(Register top_ptr_reg, Register top_reg, Register ptr_reg, | |
2327 address lock_addr=0, bool use_call_vm=false); | |
2328 void cas_under_lock(Register top_ptr_reg, Register top_reg, Register ptr_reg, | |
2329 address lock_addr=0, bool use_call_vm=false); | |
2330 void casn (Register addr_reg, Register cmp_reg, Register set_reg) ; | |
2331 | |
2332 // These set the icc condition code to equal if the lock succeeded | |
2333 // and notEqual if it failed and requires a slow case | |
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2334 void compiler_lock_object(Register Roop, Register Rmark, Register Rbox, |
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2335 Register Rscratch, |
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2336 BiasedLockingCounters* counters = NULL, |
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2337 bool try_bias = UseBiasedLocking); |
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2338 void compiler_unlock_object(Register Roop, Register Rmark, Register Rbox, |
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2339 Register Rscratch, |
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2340 bool try_bias = UseBiasedLocking); |
0 | 2341 |
2342 // Biased locking support | |
2343 // Upon entry, lock_reg must point to the lock record on the stack, | |
2344 // obj_reg must contain the target object, and mark_reg must contain | |
2345 // the target object's header. | |
2346 // Destroys mark_reg if an attempt is made to bias an anonymously | |
2347 // biased lock. In this case a failure will go either to the slow | |
2348 // case or fall through with the notEqual condition code set with | |
2349 // the expectation that the slow case in the runtime will be called. | |
2350 // In the fall-through case where the CAS-based lock is done, | |
2351 // mark_reg is not destroyed. | |
2352 void biased_locking_enter(Register obj_reg, Register mark_reg, Register temp_reg, | |
2353 Label& done, Label* slow_case = NULL, | |
2354 BiasedLockingCounters* counters = NULL); | |
2355 // Upon entry, the base register of mark_addr must contain the oop. | |
2356 // Destroys temp_reg. | |
2357 | |
2358 // If allow_delay_slot_filling is set to true, the next instruction | |
2359 // emitted after this one will go in an annulled delay slot if the | |
2360 // biased locking exit case failed. | |
2361 void biased_locking_exit(Address mark_addr, Register temp_reg, Label& done, bool allow_delay_slot_filling = false); | |
2362 | |
2363 // allocation | |
2364 void eden_allocate( | |
2365 Register obj, // result: pointer to object after successful allocation | |
2366 Register var_size_in_bytes, // object size in bytes if unknown at compile time; invalid otherwise | |
2367 int con_size_in_bytes, // object size in bytes if known at compile time | |
2368 Register t1, // temp register | |
2369 Register t2, // temp register | |
2370 Label& slow_case // continuation point if fast allocation fails | |
2371 ); | |
2372 void tlab_allocate( | |
2373 Register obj, // result: pointer to object after successful allocation | |
2374 Register var_size_in_bytes, // object size in bytes if unknown at compile time; invalid otherwise | |
2375 int con_size_in_bytes, // object size in bytes if known at compile time | |
2376 Register t1, // temp register | |
2377 Label& slow_case // continuation point if fast allocation fails | |
2378 ); | |
2379 void tlab_refill(Label& retry_tlab, Label& try_eden, Label& slow_case); | |
2380 | |
623
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2381 // interface method calling |
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2382 void lookup_interface_method(Register recv_klass, |
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2383 Register intf_klass, |
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2384 RegisterOrConstant itable_index, |
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2385 Register method_result, |
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2386 Register temp_reg, Register temp2_reg, |
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2387 Label& no_such_interface); |
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2388 |
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2389 // Test sub_klass against super_klass, with fast and slow paths. |
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2390 |
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2391 // The fast path produces a tri-state answer: yes / no / maybe-slow. |
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2392 // One of the three labels can be NULL, meaning take the fall-through. |
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2393 // If super_check_offset is -1, the value is loaded up from super_klass. |
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2394 // No registers are killed, except temp_reg and temp2_reg. |
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2395 // If super_check_offset is not -1, temp2_reg is not used and can be noreg. |
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2396 void check_klass_subtype_fast_path(Register sub_klass, |
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2397 Register super_klass, |
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2398 Register temp_reg, |
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2399 Register temp2_reg, |
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2400 Label* L_success, |
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2401 Label* L_failure, |
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2402 Label* L_slow_path, |
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2403 RegisterOrConstant super_check_offset = RegisterOrConstant(-1), |
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2404 Register instanceof_hack = noreg); |
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2405 |
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2406 // The rest of the type check; must be wired to a corresponding fast path. |
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2407 // It does not repeat the fast path logic, so don't use it standalone. |
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2408 // The temp_reg can be noreg, if no temps are available. |
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2409 // It can also be sub_klass or super_klass, meaning it's OK to kill that one. |
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2410 // Updates the sub's secondary super cache as necessary. |
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2411 void check_klass_subtype_slow_path(Register sub_klass, |
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2412 Register super_klass, |
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2413 Register temp_reg, |
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2414 Register temp2_reg, |
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2415 Register temp3_reg, |
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2416 Register temp4_reg, |
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2417 Label* L_success, |
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2418 Label* L_failure); |
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2419 |
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2420 // Simplified, combined version, good for typical uses. |
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2421 // Falls through on failure. |
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2422 void check_klass_subtype(Register sub_klass, |
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2423 Register super_klass, |
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2424 Register temp_reg, |
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2425 Register temp2_reg, |
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2426 Label& L_success); |
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2427 |
710 | 2428 // method handles (JSR 292) |
2429 void check_method_handle_type(Register mtype_reg, Register mh_reg, | |
2430 Register temp_reg, | |
2431 Label& wrong_method_type); | |
1503 | 2432 void load_method_handle_vmslots(Register vmslots_reg, Register mh_reg, |
2433 Register temp_reg); | |
2434 void jump_to_method_handle_entry(Register mh_reg, Register temp_reg, bool emit_delayed_nop = true); | |
710 | 2435 // offset relative to Gargs of argument at tos[arg_slot]. |
2436 // (arg_slot == 0 means the last argument, not the first). | |
2437 RegisterOrConstant argument_offset(RegisterOrConstant arg_slot, | |
2438 int extra_slot_offset = 0); | |
1503 | 2439 // Address of Gargs and argument_offset. |
2440 Address argument_address(RegisterOrConstant arg_slot, | |
2441 int extra_slot_offset = 0); | |
644
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2442 |
0 | 2443 // Stack overflow checking |
2444 | |
2445 // Note: this clobbers G3_scratch | |
2446 void bang_stack_with_offset(int offset) { | |
2447 // stack grows down, caller passes positive offset | |
2448 assert(offset > 0, "must bang with negative offset"); | |
2449 set((-offset)+STACK_BIAS, G3_scratch); | |
2450 st(G0, SP, G3_scratch); | |
2451 } | |
2452 | |
2453 // Writes to stack successive pages until offset reached to check for | |
2454 // stack overflow + shadow pages. Clobbers tsp and scratch registers. | |
2455 void bang_stack_size(Register Rsize, Register Rtsp, Register Rscratch); | |
2456 | |
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2457 virtual RegisterOrConstant delayed_value_impl(intptr_t* delayed_value_addr, Register tmp, int offset); |
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2458 |
0 | 2459 void verify_tlab(); |
2460 | |
2461 Condition negate_condition(Condition cond); | |
2462 | |
2463 // Helper functions for statistics gathering. | |
2464 // Conditionally (non-atomically) increments passed counter address, preserving condition codes. | |
2465 void cond_inc(Condition cond, address counter_addr, Register Rtemp1, Register Rtemp2); | |
2466 // Unconditional increment. | |
727 | 2467 void inc_counter(address counter_addr, Register Rtmp1, Register Rtmp2); |
2468 void inc_counter(int* counter_addr, Register Rtmp1, Register Rtmp2); | |
0 | 2469 |
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2470 // Compare char[] arrays aligned to 4 bytes. |
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2471 void char_arrays_equals(Register ary1, Register ary2, |
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2472 Register limit, Register result, |
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2473 Register chr1, Register chr2, Label& Ldone); |
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2474 |
0 | 2475 #undef VIRTUAL |
2476 | |
2477 }; | |
2478 | |
2479 /** | |
2480 * class SkipIfEqual: | |
2481 * | |
2482 * Instantiating this class will result in assembly code being output that will | |
2483 * jump around any code emitted between the creation of the instance and it's | |
2484 * automatic destruction at the end of a scope block, depending on the value of | |
2485 * the flag passed to the constructor, which will be checked at run-time. | |
2486 */ | |
2487 class SkipIfEqual : public StackObj { | |
2488 private: | |
2489 MacroAssembler* _masm; | |
2490 Label _label; | |
2491 | |
2492 public: | |
2493 // 'temp' is a temp register that this object can use (and trash) | |
2494 SkipIfEqual(MacroAssembler*, Register temp, | |
2495 const bool* flag_addr, Assembler::Condition condition); | |
2496 ~SkipIfEqual(); | |
2497 }; | |
2498 | |
2499 #ifdef ASSERT | |
2500 // On RISC, there's no benefit to verifying instruction boundaries. | |
2501 inline bool AbstractAssembler::pd_check_instruction_mark() { return false; } | |
2502 #endif |