Mercurial > hg > truffle
annotate src/cpu/sparc/vm/interpreter_sparc.cpp @ 12355:cefad50507d8
Merge with hs25-b53
| author | Gilles Duboscq <duboscq@ssw.jku.at> |
|---|---|
| date | Fri, 11 Oct 2013 10:38:03 +0200 |
| parents | c6a1ffc707ff |
| children | 4062efea018b |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 1997, 2012, 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" |
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26 #include "asm/macroAssembler.hpp" |
| 1972 | 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" | |
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33 #include "oops/methodData.hpp" |
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34 #include "oops/method.hpp" |
| 1972 | 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. | |
| 3839 | 194 __ br_null_short(G4_scratch, Assembler::pt, done); |
| 0 | 195 } |
| 3839 | 196 __ ba(NextArg); |
| 0 | 197 __ delayed()->srl( G4_scratch, 2, G4_scratch ); |
| 198 | |
| 199 __ bind(LoadFloatArg); | |
| 200 __ ldf( FloatRegisterImpl::S, a, ldarg.as_float_register(), 4); | |
| 3839 | 201 __ ba(NextArg); |
| 0 | 202 __ delayed()->srl( G4_scratch, 2, G4_scratch ); |
| 203 | |
| 204 __ bind(LoadDoubleArg); | |
| 205 __ ldf( FloatRegisterImpl::D, a, ldarg.as_double_register() ); | |
| 3839 | 206 __ ba(NextArg); |
| 0 | 207 __ delayed()->srl( G4_scratch, 2, G4_scratch ); |
| 208 | |
| 209 __ bind(NextArg); | |
| 210 | |
| 211 } | |
| 212 | |
| 213 __ bind(done); | |
| 214 __ ret(); | |
| 215 __ delayed()-> | |
| 216 restore(O0, 0, Lscratch); // caller's Lscratch gets the result handler | |
| 217 return entry; | |
| 218 } | |
| 219 #endif | |
| 220 | |
| 221 void InterpreterGenerator::generate_counter_overflow(Label& Lcontinue) { | |
| 222 | |
| 223 // Generate code to initiate compilation on the counter overflow. | |
| 224 | |
| 225 // InterpreterRuntime::frequency_counter_overflow takes two arguments, | |
| 226 // the first indicates if the counter overflow occurs at a backwards branch (NULL bcp) | |
| 227 // and the second is only used when the first is true. We pass zero for both. | |
| 228 // The call returns the address of the verified entry point for the method or NULL | |
| 229 // if the compilation did not complete (either went background or bailed out). | |
| 230 __ set((int)false, O2); | |
| 231 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::frequency_counter_overflow), O2, O2, true); | |
| 232 // returns verified_entry_point or NULL | |
| 233 // we ignore it in any case | |
| 3839 | 234 __ ba_short(Lcontinue); |
| 0 | 235 |
| 236 } | |
| 237 | |
| 238 | |
| 239 // End of helpers | |
| 240 | |
| 241 // Various method entries | |
| 242 | |
| 243 // Abstract method entry | |
| 244 // Attempt to execute abstract method. Throw exception | |
| 245 // | |
| 246 address InterpreterGenerator::generate_abstract_entry(void) { | |
| 247 address entry = __ pc(); | |
| 248 // abstract method entry | |
| 249 // throw exception | |
| 250 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::throw_AbstractMethodError)); | |
| 251 // the call_VM checks for exception, so we should never return here. | |
| 252 __ should_not_reach_here(); | |
| 253 return entry; | |
| 254 | |
| 255 } | |
| 256 | |
| 257 | |
| 258 //---------------------------------------------------------------------------------------------------- | |
| 259 // Entry points & stack frame layout | |
| 260 // | |
| 261 // Here we generate the various kind of entries into the interpreter. | |
| 262 // The two main entry type are generic bytecode methods and native call method. | |
| 263 // These both come in synchronized and non-synchronized versions but the | |
| 264 // frame layout they create is very similar. The other method entry | |
| 265 // types are really just special purpose entries that are really entry | |
| 266 // and interpretation all in one. These are for trivial methods like | |
| 267 // accessor, empty, or special math methods. | |
| 268 // | |
| 269 // When control flow reaches any of the entry types for the interpreter | |
| 270 // the following holds -> | |
| 271 // | |
| 272 // C2 Calling Conventions: | |
| 273 // | |
| 274 // The entry code below assumes that the following registers are set | |
| 275 // when coming in: | |
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276 // G5_method: holds the Method* of the method to call |
| 0 | 277 // Lesp: points to the TOS of the callers expression stack |
| 278 // after having pushed all the parameters | |
| 279 // | |
| 280 // The entry code does the following to setup an interpreter frame | |
| 281 // pop parameters from the callers stack by adjusting Lesp | |
| 282 // set O0 to Lesp | |
| 283 // compute X = (max_locals - num_parameters) | |
| 284 // bump SP up by X to accomadate the extra locals | |
| 285 // compute X = max_expression_stack | |
| 286 // + vm_local_words | |
| 287 // + 16 words of register save area | |
| 288 // save frame doing a save sp, -X, sp growing towards lower addresses | |
| 289 // set Lbcp, Lmethod, LcpoolCache | |
| 290 // set Llocals to i0 | |
| 291 // set Lmonitors to FP - rounded_vm_local_words | |
| 292 // set Lesp to Lmonitors - 4 | |
| 293 // | |
| 294 // The frame has now been setup to do the rest of the entry code | |
| 295 | |
| 296 // Try this optimization: Most method entries could live in a | |
| 297 // "one size fits all" stack frame without all the dynamic size | |
| 298 // calculations. It might be profitable to do all this calculation | |
| 299 // statically and approximately for "small enough" methods. | |
| 300 | |
| 301 //----------------------------------------------------------------------------------------------- | |
| 302 | |
| 303 // C1 Calling conventions | |
| 304 // | |
| 305 // Upon method entry, the following registers are setup: | |
| 306 // | |
| 307 // g2 G2_thread: current thread | |
| 308 // g5 G5_method: method to activate | |
| 309 // g4 Gargs : pointer to last argument | |
| 310 // | |
| 311 // | |
| 312 // Stack: | |
| 313 // | |
| 314 // +---------------+ <--- sp | |
| 315 // | | | |
| 316 // : reg save area : | |
| 317 // | | | |
| 318 // +---------------+ <--- sp + 0x40 | |
| 319 // | | | |
| 320 // : extra 7 slots : note: these slots are not really needed for the interpreter (fix later) | |
| 321 // | | | |
| 322 // +---------------+ <--- sp + 0x5c | |
| 323 // | | | |
| 324 // : free : | |
| 325 // | | | |
| 326 // +---------------+ <--- Gargs | |
| 327 // | | | |
| 328 // : arguments : | |
| 329 // | | | |
| 330 // +---------------+ | |
| 331 // | | | |
| 332 // | |
| 333 // | |
| 334 // | |
| 335 // AFTER FRAME HAS BEEN SETUP for method interpretation the stack looks like: | |
| 336 // | |
| 337 // +---------------+ <--- sp | |
| 338 // | | | |
| 339 // : reg save area : | |
| 340 // | | | |
| 341 // +---------------+ <--- sp + 0x40 | |
| 342 // | | | |
| 343 // : extra 7 slots : note: these slots are not really needed for the interpreter (fix later) | |
| 344 // | | | |
| 345 // +---------------+ <--- sp + 0x5c | |
| 346 // | | | |
| 347 // : : | |
| 348 // | | <--- Lesp | |
| 349 // +---------------+ <--- Lmonitors (fp - 0x18) | |
| 350 // | VM locals | | |
| 351 // +---------------+ <--- fp | |
| 352 // | | | |
| 353 // : reg save area : | |
| 354 // | | | |
| 355 // +---------------+ <--- fp + 0x40 | |
| 356 // | | | |
| 357 // : extra 7 slots : note: these slots are not really needed for the interpreter (fix later) | |
| 358 // | | | |
| 359 // +---------------+ <--- fp + 0x5c | |
| 360 // | | | |
| 361 // : free : | |
| 362 // | | | |
| 363 // +---------------+ | |
| 364 // | | | |
| 365 // : nonarg locals : | |
| 366 // | | | |
| 367 // +---------------+ | |
| 368 // | | | |
| 369 // : arguments : | |
| 370 // | | <--- Llocals | |
| 371 // +---------------+ <--- Gargs | |
| 372 // | | | |
| 373 | |
| 374 address AbstractInterpreterGenerator::generate_method_entry(AbstractInterpreter::MethodKind kind) { | |
| 375 // determine code generation flags | |
| 376 bool synchronized = false; | |
| 377 address entry_point = NULL; | |
| 378 | |
| 379 switch (kind) { | |
| 380 case Interpreter::zerolocals : break; | |
| 381 case Interpreter::zerolocals_synchronized: synchronized = true; break; | |
| 382 case Interpreter::native : entry_point = ((InterpreterGenerator*)this)->generate_native_entry(false); break; | |
| 383 case Interpreter::native_synchronized : entry_point = ((InterpreterGenerator*)this)->generate_native_entry(true); break; | |
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384 #ifdef GRAAL |
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385 case Interpreter::execute_compiled_method: entry_point = ((InterpreterGenerator*)this)->generate_execute_compiled_method_entry(); break; |
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386 #endif |
| 0 | 387 case Interpreter::empty : entry_point = ((InterpreterGenerator*)this)->generate_empty_entry(); break; |
| 388 case Interpreter::accessor : entry_point = ((InterpreterGenerator*)this)->generate_accessor_entry(); break; | |
| 389 case Interpreter::abstract : entry_point = ((InterpreterGenerator*)this)->generate_abstract_entry(); break; | |
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390 |
| 0 | 391 case Interpreter::java_lang_math_sin : break; |
| 392 case Interpreter::java_lang_math_cos : break; | |
| 393 case Interpreter::java_lang_math_tan : break; | |
| 394 case Interpreter::java_lang_math_sqrt : break; | |
| 395 case Interpreter::java_lang_math_abs : break; | |
| 396 case Interpreter::java_lang_math_log : break; | |
| 397 case Interpreter::java_lang_math_log10 : break; | |
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398 case Interpreter::java_lang_math_pow : break; |
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399 case Interpreter::java_lang_math_exp : break; |
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400 case Interpreter::java_lang_ref_reference_get |
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401 : entry_point = ((InterpreterGenerator*)this)->generate_Reference_get_entry(); break; |
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402 default: |
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403 fatal(err_msg("unexpected method kind: %d", kind)); |
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404 break; |
| 0 | 405 } |
| 406 | |
| 407 if (entry_point) return entry_point; | |
| 408 | |
| 409 return ((InterpreterGenerator*)this)->generate_normal_entry(synchronized); | |
| 410 } | |
| 411 | |
| 412 | |
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413 bool AbstractInterpreter::can_be_compiled(methodHandle m) { |
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414 // No special entry points that preclude compilation |
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415 return true; |
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416 } |
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417 |
| 0 | 418 void Deoptimization::unwind_callee_save_values(frame* f, vframeArray* vframe_array) { |
| 419 | |
| 420 // This code is sort of the equivalent of C2IAdapter::setup_stack_frame back in | |
| 421 // the days we had adapter frames. When we deoptimize a situation where a | |
| 422 // compiled caller calls a compiled caller will have registers it expects | |
| 423 // to survive the call to the callee. If we deoptimize the callee the only | |
| 424 // way we can restore these registers is to have the oldest interpreter | |
| 425 // frame that we create restore these values. That is what this routine | |
| 426 // will accomplish. | |
| 427 | |
| 428 // At the moment we have modified c2 to not have any callee save registers | |
| 429 // so this problem does not exist and this routine is just a place holder. | |
| 430 | |
| 431 assert(f->is_interpreted_frame(), "must be interpreted"); | |
| 432 } | |
| 433 | |
| 434 | |
| 435 //---------------------------------------------------------------------------------------------------- | |
| 436 // Exceptions |