Mercurial > hg > truffle
annotate src/cpu/sparc/vm/interpreter_sparc.cpp @ 3273:df22fe9c5a93
Merge
author | coleenp |
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date | Wed, 27 Apr 2011 17:25:45 -0700 |
parents | 92add02409c9 |
children | 3d2ab563047a |
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0 | 1 /* |
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2 * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved. |
0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #include "precompiled.hpp" |
26 #include "asm/assembler.hpp" | |
27 #include "interpreter/bytecodeHistogram.hpp" | |
28 #include "interpreter/interpreter.hpp" | |
29 #include "interpreter/interpreterGenerator.hpp" | |
30 #include "interpreter/interpreterRuntime.hpp" | |
31 #include "interpreter/templateTable.hpp" | |
32 #include "oops/arrayOop.hpp" | |
33 #include "oops/methodDataOop.hpp" | |
34 #include "oops/methodOop.hpp" | |
35 #include "oops/oop.inline.hpp" | |
36 #include "prims/jvmtiExport.hpp" | |
37 #include "prims/jvmtiThreadState.hpp" | |
38 #include "prims/methodHandles.hpp" | |
39 #include "runtime/arguments.hpp" | |
40 #include "runtime/deoptimization.hpp" | |
41 #include "runtime/frame.inline.hpp" | |
42 #include "runtime/sharedRuntime.hpp" | |
43 #include "runtime/stubRoutines.hpp" | |
44 #include "runtime/synchronizer.hpp" | |
45 #include "runtime/timer.hpp" | |
46 #include "runtime/vframeArray.hpp" | |
47 #include "utilities/debug.hpp" | |
48 #ifdef COMPILER1 | |
49 #include "c1/c1_Runtime1.hpp" | |
50 #endif | |
0 | 51 |
52 | |
53 | |
54 // Generation of Interpreter | |
55 // | |
56 // The InterpreterGenerator generates the interpreter into Interpreter::_code. | |
57 | |
58 | |
59 #define __ _masm-> | |
60 | |
61 | |
62 //---------------------------------------------------------------------------------------------------- | |
63 | |
64 | |
65 | |
66 | |
67 int AbstractInterpreter::BasicType_as_index(BasicType type) { | |
68 int i = 0; | |
69 switch (type) { | |
70 case T_BOOLEAN: i = 0; break; | |
71 case T_CHAR : i = 1; break; | |
72 case T_BYTE : i = 2; break; | |
73 case T_SHORT : i = 3; break; | |
74 case T_INT : i = 4; break; | |
75 case T_LONG : i = 5; break; | |
76 case T_VOID : i = 6; break; | |
77 case T_FLOAT : i = 7; break; | |
78 case T_DOUBLE : i = 8; break; | |
79 case T_OBJECT : i = 9; break; | |
80 case T_ARRAY : i = 9; break; | |
81 default : ShouldNotReachHere(); | |
82 } | |
83 assert(0 <= i && i < AbstractInterpreter::number_of_result_handlers, "index out of bounds"); | |
84 return i; | |
85 } | |
86 | |
87 | |
88 #ifndef _LP64 | |
89 address AbstractInterpreterGenerator::generate_slow_signature_handler() { | |
90 address entry = __ pc(); | |
91 Argument argv(0, true); | |
92 | |
93 // We are in the jni transition frame. Save the last_java_frame corresponding to the | |
94 // outer interpreter frame | |
95 // | |
96 __ set_last_Java_frame(FP, noreg); | |
97 // make sure the interpreter frame we've pushed has a valid return pc | |
98 __ mov(O7, I7); | |
99 __ mov(Lmethod, G3_scratch); | |
100 __ mov(Llocals, G4_scratch); | |
101 __ save_frame(0); | |
102 __ mov(G2_thread, L7_thread_cache); | |
103 __ add(argv.address_in_frame(), O3); | |
104 __ mov(G2_thread, O0); | |
105 __ mov(G3_scratch, O1); | |
106 __ call(CAST_FROM_FN_PTR(address, InterpreterRuntime::slow_signature_handler), relocInfo::runtime_call_type); | |
107 __ delayed()->mov(G4_scratch, O2); | |
108 __ mov(L7_thread_cache, G2_thread); | |
109 __ reset_last_Java_frame(); | |
110 | |
111 // load the register arguments (the C code packed them as varargs) | |
112 for (Argument ldarg = argv.successor(); ldarg.is_register(); ldarg = ldarg.successor()) { | |
113 __ ld_ptr(ldarg.address_in_frame(), ldarg.as_register()); | |
114 } | |
115 __ ret(); | |
116 __ delayed()-> | |
117 restore(O0, 0, Lscratch); // caller's Lscratch gets the result handler | |
118 return entry; | |
119 } | |
120 | |
121 | |
122 #else | |
123 // LP64 passes floating point arguments in F1, F3, F5, etc. instead of | |
124 // O0, O1, O2 etc.. | |
125 // Doubles are passed in D0, D2, D4 | |
126 // We store the signature of the first 16 arguments in the first argument | |
127 // slot because it will be overwritten prior to calling the native | |
128 // function, with the pointer to the JNIEnv. | |
129 // If LP64 there can be up to 16 floating point arguments in registers | |
130 // or 6 integer registers. | |
131 address AbstractInterpreterGenerator::generate_slow_signature_handler() { | |
132 | |
133 enum { | |
134 non_float = 0, | |
135 float_sig = 1, | |
136 double_sig = 2, | |
137 sig_mask = 3 | |
138 }; | |
139 | |
140 address entry = __ pc(); | |
141 Argument argv(0, true); | |
142 | |
143 // We are in the jni transition frame. Save the last_java_frame corresponding to the | |
144 // outer interpreter frame | |
145 // | |
146 __ set_last_Java_frame(FP, noreg); | |
147 // make sure the interpreter frame we've pushed has a valid return pc | |
148 __ mov(O7, I7); | |
149 __ mov(Lmethod, G3_scratch); | |
150 __ mov(Llocals, G4_scratch); | |
151 __ save_frame(0); | |
152 __ mov(G2_thread, L7_thread_cache); | |
153 __ add(argv.address_in_frame(), O3); | |
154 __ mov(G2_thread, O0); | |
155 __ mov(G3_scratch, O1); | |
156 __ call(CAST_FROM_FN_PTR(address, InterpreterRuntime::slow_signature_handler), relocInfo::runtime_call_type); | |
157 __ delayed()->mov(G4_scratch, O2); | |
158 __ mov(L7_thread_cache, G2_thread); | |
159 __ reset_last_Java_frame(); | |
160 | |
161 | |
162 // load the register arguments (the C code packed them as varargs) | |
163 Address Sig = argv.address_in_frame(); // Argument 0 holds the signature | |
164 __ ld_ptr( Sig, G3_scratch ); // Get register argument signature word into G3_scratch | |
165 __ mov( G3_scratch, G4_scratch); | |
166 __ srl( G4_scratch, 2, G4_scratch); // Skip Arg 0 | |
167 Label done; | |
168 for (Argument ldarg = argv.successor(); ldarg.is_float_register(); ldarg = ldarg.successor()) { | |
169 Label NonFloatArg; | |
170 Label LoadFloatArg; | |
171 Label LoadDoubleArg; | |
172 Label NextArg; | |
173 Address a = ldarg.address_in_frame(); | |
174 __ andcc(G4_scratch, sig_mask, G3_scratch); | |
175 __ br(Assembler::zero, false, Assembler::pt, NonFloatArg); | |
176 __ delayed()->nop(); | |
177 | |
178 __ cmp(G3_scratch, float_sig ); | |
179 __ br(Assembler::equal, false, Assembler::pt, LoadFloatArg); | |
180 __ delayed()->nop(); | |
181 | |
182 __ cmp(G3_scratch, double_sig ); | |
183 __ br(Assembler::equal, false, Assembler::pt, LoadDoubleArg); | |
184 __ delayed()->nop(); | |
185 | |
186 __ bind(NonFloatArg); | |
187 // There are only 6 integer register arguments! | |
188 if ( ldarg.is_register() ) | |
189 __ ld_ptr(ldarg.address_in_frame(), ldarg.as_register()); | |
190 else { | |
191 // Optimization, see if there are any more args and get out prior to checking | |
192 // all 16 float registers. My guess is that this is rare. | |
193 // If is_register is false, then we are done the first six integer args. | |
194 __ tst(G4_scratch); | |
195 __ brx(Assembler::zero, false, Assembler::pt, done); | |
196 __ delayed()->nop(); | |
197 | |
198 } | |
199 __ ba(false, NextArg); | |
200 __ delayed()->srl( G4_scratch, 2, G4_scratch ); | |
201 | |
202 __ bind(LoadFloatArg); | |
203 __ ldf( FloatRegisterImpl::S, a, ldarg.as_float_register(), 4); | |
204 __ ba(false, NextArg); | |
205 __ delayed()->srl( G4_scratch, 2, G4_scratch ); | |
206 | |
207 __ bind(LoadDoubleArg); | |
208 __ ldf( FloatRegisterImpl::D, a, ldarg.as_double_register() ); | |
209 __ ba(false, NextArg); | |
210 __ delayed()->srl( G4_scratch, 2, G4_scratch ); | |
211 | |
212 __ bind(NextArg); | |
213 | |
214 } | |
215 | |
216 __ bind(done); | |
217 __ ret(); | |
218 __ delayed()-> | |
219 restore(O0, 0, Lscratch); // caller's Lscratch gets the result handler | |
220 return entry; | |
221 } | |
222 #endif | |
223 | |
224 void InterpreterGenerator::generate_counter_overflow(Label& Lcontinue) { | |
225 | |
226 // Generate code to initiate compilation on the counter overflow. | |
227 | |
228 // InterpreterRuntime::frequency_counter_overflow takes two arguments, | |
229 // the first indicates if the counter overflow occurs at a backwards branch (NULL bcp) | |
230 // and the second is only used when the first is true. We pass zero for both. | |
231 // The call returns the address of the verified entry point for the method or NULL | |
232 // if the compilation did not complete (either went background or bailed out). | |
233 __ set((int)false, O2); | |
234 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::frequency_counter_overflow), O2, O2, true); | |
235 // returns verified_entry_point or NULL | |
236 // we ignore it in any case | |
237 __ ba(false, Lcontinue); | |
238 __ delayed()->nop(); | |
239 | |
240 } | |
241 | |
242 | |
243 // End of helpers | |
244 | |
245 // Various method entries | |
246 | |
247 // Abstract method entry | |
248 // Attempt to execute abstract method. Throw exception | |
249 // | |
250 address InterpreterGenerator::generate_abstract_entry(void) { | |
251 address entry = __ pc(); | |
252 // abstract method entry | |
253 // throw exception | |
254 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::throw_AbstractMethodError)); | |
255 // the call_VM checks for exception, so we should never return here. | |
256 __ should_not_reach_here(); | |
257 return entry; | |
258 | |
259 } | |
260 | |
261 | |
710 | 262 // Method handle invoker |
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263 // Dispatch a method of the form java.lang.invoke.MethodHandles::invoke(...) |
710 | 264 address InterpreterGenerator::generate_method_handle_entry(void) { |
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265 if (!EnableInvokeDynamic) { |
710 | 266 return generate_abstract_entry(); |
267 } | |
1503 | 268 |
269 return MethodHandles::generate_method_handle_interpreter_entry(_masm); | |
710 | 270 } |
271 | |
272 | |
0 | 273 //---------------------------------------------------------------------------------------------------- |
274 // Entry points & stack frame layout | |
275 // | |
276 // Here we generate the various kind of entries into the interpreter. | |
277 // The two main entry type are generic bytecode methods and native call method. | |
278 // These both come in synchronized and non-synchronized versions but the | |
279 // frame layout they create is very similar. The other method entry | |
280 // types are really just special purpose entries that are really entry | |
281 // and interpretation all in one. These are for trivial methods like | |
282 // accessor, empty, or special math methods. | |
283 // | |
284 // When control flow reaches any of the entry types for the interpreter | |
285 // the following holds -> | |
286 // | |
287 // C2 Calling Conventions: | |
288 // | |
289 // The entry code below assumes that the following registers are set | |
290 // when coming in: | |
291 // G5_method: holds the methodOop of the method to call | |
292 // Lesp: points to the TOS of the callers expression stack | |
293 // after having pushed all the parameters | |
294 // | |
295 // The entry code does the following to setup an interpreter frame | |
296 // pop parameters from the callers stack by adjusting Lesp | |
297 // set O0 to Lesp | |
298 // compute X = (max_locals - num_parameters) | |
299 // bump SP up by X to accomadate the extra locals | |
300 // compute X = max_expression_stack | |
301 // + vm_local_words | |
302 // + 16 words of register save area | |
303 // save frame doing a save sp, -X, sp growing towards lower addresses | |
304 // set Lbcp, Lmethod, LcpoolCache | |
305 // set Llocals to i0 | |
306 // set Lmonitors to FP - rounded_vm_local_words | |
307 // set Lesp to Lmonitors - 4 | |
308 // | |
309 // The frame has now been setup to do the rest of the entry code | |
310 | |
311 // Try this optimization: Most method entries could live in a | |
312 // "one size fits all" stack frame without all the dynamic size | |
313 // calculations. It might be profitable to do all this calculation | |
314 // statically and approximately for "small enough" methods. | |
315 | |
316 //----------------------------------------------------------------------------------------------- | |
317 | |
318 // C1 Calling conventions | |
319 // | |
320 // Upon method entry, the following registers are setup: | |
321 // | |
322 // g2 G2_thread: current thread | |
323 // g5 G5_method: method to activate | |
324 // g4 Gargs : pointer to last argument | |
325 // | |
326 // | |
327 // Stack: | |
328 // | |
329 // +---------------+ <--- sp | |
330 // | | | |
331 // : reg save area : | |
332 // | | | |
333 // +---------------+ <--- sp + 0x40 | |
334 // | | | |
335 // : extra 7 slots : note: these slots are not really needed for the interpreter (fix later) | |
336 // | | | |
337 // +---------------+ <--- sp + 0x5c | |
338 // | | | |
339 // : free : | |
340 // | | | |
341 // +---------------+ <--- Gargs | |
342 // | | | |
343 // : arguments : | |
344 // | | | |
345 // +---------------+ | |
346 // | | | |
347 // | |
348 // | |
349 // | |
350 // AFTER FRAME HAS BEEN SETUP for method interpretation the stack looks like: | |
351 // | |
352 // +---------------+ <--- sp | |
353 // | | | |
354 // : reg save area : | |
355 // | | | |
356 // +---------------+ <--- sp + 0x40 | |
357 // | | | |
358 // : extra 7 slots : note: these slots are not really needed for the interpreter (fix later) | |
359 // | | | |
360 // +---------------+ <--- sp + 0x5c | |
361 // | | | |
362 // : : | |
363 // | | <--- Lesp | |
364 // +---------------+ <--- Lmonitors (fp - 0x18) | |
365 // | VM locals | | |
366 // +---------------+ <--- fp | |
367 // | | | |
368 // : reg save area : | |
369 // | | | |
370 // +---------------+ <--- fp + 0x40 | |
371 // | | | |
372 // : extra 7 slots : note: these slots are not really needed for the interpreter (fix later) | |
373 // | | | |
374 // +---------------+ <--- fp + 0x5c | |
375 // | | | |
376 // : free : | |
377 // | | | |
378 // +---------------+ | |
379 // | | | |
380 // : nonarg locals : | |
381 // | | | |
382 // +---------------+ | |
383 // | | | |
384 // : arguments : | |
385 // | | <--- Llocals | |
386 // +---------------+ <--- Gargs | |
387 // | | | |
388 | |
389 address AbstractInterpreterGenerator::generate_method_entry(AbstractInterpreter::MethodKind kind) { | |
390 // determine code generation flags | |
391 bool synchronized = false; | |
392 address entry_point = NULL; | |
393 | |
394 switch (kind) { | |
395 case Interpreter::zerolocals : break; | |
396 case Interpreter::zerolocals_synchronized: synchronized = true; break; | |
397 case Interpreter::native : entry_point = ((InterpreterGenerator*)this)->generate_native_entry(false); break; | |
398 case Interpreter::native_synchronized : entry_point = ((InterpreterGenerator*)this)->generate_native_entry(true); break; | |
399 case Interpreter::empty : entry_point = ((InterpreterGenerator*)this)->generate_empty_entry(); break; | |
400 case Interpreter::accessor : entry_point = ((InterpreterGenerator*)this)->generate_accessor_entry(); break; | |
401 case Interpreter::abstract : entry_point = ((InterpreterGenerator*)this)->generate_abstract_entry(); break; | |
710 | 402 case Interpreter::method_handle : entry_point = ((InterpreterGenerator*)this)->generate_method_handle_entry(); break; |
0 | 403 case Interpreter::java_lang_math_sin : break; |
404 case Interpreter::java_lang_math_cos : break; | |
405 case Interpreter::java_lang_math_tan : break; | |
406 case Interpreter::java_lang_math_sqrt : break; | |
407 case Interpreter::java_lang_math_abs : break; | |
408 case Interpreter::java_lang_math_log : break; | |
409 case Interpreter::java_lang_math_log10 : break; | |
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410 case Interpreter::java_lang_ref_reference_get |
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411 : entry_point = ((InterpreterGenerator*)this)->generate_Reference_get_entry(); break; |
0 | 412 default : ShouldNotReachHere(); break; |
413 } | |
414 | |
415 if (entry_point) return entry_point; | |
416 | |
417 return ((InterpreterGenerator*)this)->generate_normal_entry(synchronized); | |
418 } | |
419 | |
420 | |
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421 bool AbstractInterpreter::can_be_compiled(methodHandle m) { |
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422 // No special entry points that preclude compilation |
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423 return true; |
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424 } |
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425 |
0 | 426 // This method tells the deoptimizer how big an interpreted frame must be: |
427 int AbstractInterpreter::size_activation(methodOop method, | |
428 int tempcount, | |
429 int popframe_extra_args, | |
430 int moncount, | |
431 int callee_param_count, | |
432 int callee_locals, | |
433 bool is_top_frame) { | |
434 return layout_activation(method, | |
435 tempcount, | |
436 popframe_extra_args, | |
437 moncount, | |
438 callee_param_count, | |
439 callee_locals, | |
440 (frame*)NULL, | |
441 (frame*)NULL, | |
442 is_top_frame); | |
443 } | |
444 | |
445 void Deoptimization::unwind_callee_save_values(frame* f, vframeArray* vframe_array) { | |
446 | |
447 // This code is sort of the equivalent of C2IAdapter::setup_stack_frame back in | |
448 // the days we had adapter frames. When we deoptimize a situation where a | |
449 // compiled caller calls a compiled caller will have registers it expects | |
450 // to survive the call to the callee. If we deoptimize the callee the only | |
451 // way we can restore these registers is to have the oldest interpreter | |
452 // frame that we create restore these values. That is what this routine | |
453 // will accomplish. | |
454 | |
455 // At the moment we have modified c2 to not have any callee save registers | |
456 // so this problem does not exist and this routine is just a place holder. | |
457 | |
458 assert(f->is_interpreted_frame(), "must be interpreted"); | |
459 } | |
460 | |
461 | |
462 //---------------------------------------------------------------------------------------------------- | |
463 // Exceptions |