1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/src/share/vm/shark/sharkCacheDecache.hpp Wed Aug 11 05:51:21 2010 -0700
1.3 @@ -0,0 +1,417 @@
1.4 +/*
1.5 + * Copyright (c) 1999, 2007, Oracle and/or its affiliates. All rights reserved.
1.6 + * Copyright 2008, 2009 Red Hat, Inc.
1.7 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.8 + *
1.9 + * This code is free software; you can redistribute it and/or modify it
1.10 + * under the terms of the GNU General Public License version 2 only, as
1.11 + * published by the Free Software Foundation.
1.12 + *
1.13 + * This code is distributed in the hope that it will be useful, but WITHOUT
1.14 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.15 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.16 + * version 2 for more details (a copy is included in the LICENSE file that
1.17 + * accompanied this code).
1.18 + *
1.19 + * You should have received a copy of the GNU General Public License version
1.20 + * 2 along with this work; if not, write to the Free Software Foundation,
1.21 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.22 + *
1.23 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
1.24 + * or visit www.oracle.com if you need additional information or have any
1.25 + * questions.
1.26 + *
1.27 + */
1.28 +
1.29 +// Class hierarchy:
1.30 +// - SharkStateScanner
1.31 +// - SharkCacherDecacher
1.32 +// - SharkDecacher
1.33 +// - SharkJavaCallDecacher
1.34 +// - SharkVMCallDecacher
1.35 +// - SharkTrapDecacher
1.36 +// - SharkCacher
1.37 +// - SharkJavaCallCacher
1.38 +// - SharkVMCallCacher
1.39 +// - SharkFunctionEntryCacher
1.40 +// - SharkNormalEntryCacher
1.41 +// - SharkOSREntryCacher
1.42 +
1.43 +class SharkCacherDecacher : public SharkStateScanner {
1.44 + protected:
1.45 + SharkCacherDecacher(SharkFunction* function)
1.46 + : SharkStateScanner(function) {}
1.47 +
1.48 + // Helper
1.49 + protected:
1.50 + static int adjusted_offset(SharkValue* value, int offset) {
1.51 + if (value->is_two_word())
1.52 + offset--;
1.53 + return offset;
1.54 + }
1.55 +};
1.56 +
1.57 +class SharkDecacher : public SharkCacherDecacher {
1.58 + protected:
1.59 + SharkDecacher(SharkFunction* function, int bci)
1.60 + : SharkCacherDecacher(function), _bci(bci) {}
1.61 +
1.62 + private:
1.63 + int _bci;
1.64 +
1.65 + protected:
1.66 + int bci() const {
1.67 + return _bci;
1.68 + }
1.69 +
1.70 + private:
1.71 + int _pc_offset;
1.72 + OopMap* _oopmap;
1.73 + GrowableArray<ScopeValue*>* _exparray;
1.74 + GrowableArray<MonitorValue*>* _monarray;
1.75 + GrowableArray<ScopeValue*>* _locarray;
1.76 +
1.77 + private:
1.78 + int pc_offset() const {
1.79 + return _pc_offset;
1.80 + }
1.81 + OopMap* oopmap() const {
1.82 + return _oopmap;
1.83 + }
1.84 + GrowableArray<ScopeValue*>* exparray() const {
1.85 + return _exparray;
1.86 + }
1.87 + GrowableArray<MonitorValue*>* monarray() const {
1.88 + return _monarray;
1.89 + }
1.90 + GrowableArray<ScopeValue*>* locarray() const {
1.91 + return _locarray;
1.92 + }
1.93 +
1.94 + // Callbacks
1.95 + protected:
1.96 + void start_frame();
1.97 +
1.98 + void start_stack(int stack_depth);
1.99 + void process_stack_slot(int index, SharkValue** value, int offset);
1.100 +
1.101 + void start_monitors(int num_monitors);
1.102 + void process_monitor(int index, int box_offset, int obj_offset);
1.103 +
1.104 + void process_oop_tmp_slot(llvm::Value** value, int offset);
1.105 + void process_method_slot(llvm::Value** value, int offset);
1.106 + void process_pc_slot(int offset);
1.107 +
1.108 + void start_locals();
1.109 + void process_local_slot(int index, SharkValue** value, int offset);
1.110 +
1.111 + void end_frame();
1.112 +
1.113 + // oopmap and debuginfo helpers
1.114 + private:
1.115 + static int oopmap_slot_munge(int offset) {
1.116 + return SharkStack::oopmap_slot_munge(offset);
1.117 + }
1.118 + static VMReg slot2reg(int offset) {
1.119 + return SharkStack::slot2reg(offset);
1.120 + }
1.121 + static Location slot2loc(int offset, Location::Type type) {
1.122 + return Location::new_stk_loc(type, offset * wordSize);
1.123 + }
1.124 + static LocationValue* slot2lv(int offset, Location::Type type) {
1.125 + return new LocationValue(slot2loc(offset, type));
1.126 + }
1.127 + static Location::Type location_type(SharkValue** addr, bool maybe_two_word) {
1.128 + // low addresses this end
1.129 + // Type 32-bit 64-bit
1.130 + // ----------------------------------------------------
1.131 + // stack[0] local[3] jobject oop oop
1.132 + // stack[1] local[2] NULL normal lng
1.133 + // stack[2] local[1] jlong normal invalid
1.134 + // stack[3] local[0] jint normal normal
1.135 + //
1.136 + // high addresses this end
1.137 +
1.138 + SharkValue *value = *addr;
1.139 + if (value) {
1.140 + if (value->is_jobject())
1.141 + return Location::oop;
1.142 +#ifdef _LP64
1.143 + if (value->is_two_word())
1.144 + return Location::invalid;
1.145 +#endif // _LP64
1.146 + return Location::normal;
1.147 + }
1.148 + else {
1.149 + if (maybe_two_word) {
1.150 + value = *(addr - 1);
1.151 + if (value && value->is_two_word()) {
1.152 +#ifdef _LP64
1.153 + if (value->is_jlong())
1.154 + return Location::lng;
1.155 + if (value->is_jdouble())
1.156 + return Location::dbl;
1.157 + ShouldNotReachHere();
1.158 +#else
1.159 + return Location::normal;
1.160 +#endif // _LP64
1.161 + }
1.162 + }
1.163 + return Location::invalid;
1.164 + }
1.165 + }
1.166 +
1.167 + // Stack slot helpers
1.168 + protected:
1.169 + virtual bool stack_slot_needs_write(int index, SharkValue* value) = 0;
1.170 + virtual bool stack_slot_needs_oopmap(int index, SharkValue* value) = 0;
1.171 + virtual bool stack_slot_needs_debuginfo(int index, SharkValue* value) = 0;
1.172 +
1.173 + static Location::Type stack_location_type(int index, SharkValue** addr) {
1.174 + return location_type(addr, *addr == NULL);
1.175 + }
1.176 +
1.177 + // Local slot helpers
1.178 + protected:
1.179 + virtual bool local_slot_needs_write(int index, SharkValue* value) = 0;
1.180 + virtual bool local_slot_needs_oopmap(int index, SharkValue* value) = 0;
1.181 + virtual bool local_slot_needs_debuginfo(int index, SharkValue* value) = 0;
1.182 +
1.183 + static Location::Type local_location_type(int index, SharkValue** addr) {
1.184 + return location_type(addr, index > 0);
1.185 + }
1.186 +
1.187 + // Writer helper
1.188 + protected:
1.189 + void write_value_to_frame(const llvm::Type* type,
1.190 + llvm::Value* value,
1.191 + int offset);
1.192 +};
1.193 +
1.194 +class SharkJavaCallDecacher : public SharkDecacher {
1.195 + public:
1.196 + SharkJavaCallDecacher(SharkFunction* function, int bci, ciMethod* callee)
1.197 + : SharkDecacher(function, bci), _callee(callee) {}
1.198 +
1.199 + private:
1.200 + ciMethod* _callee;
1.201 +
1.202 + protected:
1.203 + ciMethod* callee() const {
1.204 + return _callee;
1.205 + }
1.206 +
1.207 + // Stack slot helpers
1.208 + protected:
1.209 + bool stack_slot_needs_write(int index, SharkValue* value) {
1.210 + return value && (index < callee()->arg_size() || value->is_jobject());
1.211 + }
1.212 + bool stack_slot_needs_oopmap(int index, SharkValue* value) {
1.213 + return value && value->is_jobject() && index >= callee()->arg_size();
1.214 + }
1.215 + bool stack_slot_needs_debuginfo(int index, SharkValue* value) {
1.216 + return index >= callee()->arg_size();
1.217 + }
1.218 +
1.219 + // Local slot helpers
1.220 + protected:
1.221 + bool local_slot_needs_write(int index, SharkValue* value) {
1.222 + return value && value->is_jobject();
1.223 + }
1.224 + bool local_slot_needs_oopmap(int index, SharkValue* value) {
1.225 + return value && value->is_jobject();
1.226 + }
1.227 + bool local_slot_needs_debuginfo(int index, SharkValue* value) {
1.228 + return true;
1.229 + }
1.230 +};
1.231 +
1.232 +class SharkVMCallDecacher : public SharkDecacher {
1.233 + public:
1.234 + SharkVMCallDecacher(SharkFunction* function, int bci)
1.235 + : SharkDecacher(function, bci) {}
1.236 +
1.237 + // Stack slot helpers
1.238 + protected:
1.239 + bool stack_slot_needs_write(int index, SharkValue* value) {
1.240 + return value && value->is_jobject();
1.241 + }
1.242 + bool stack_slot_needs_oopmap(int index, SharkValue* value) {
1.243 + return value && value->is_jobject();
1.244 + }
1.245 + bool stack_slot_needs_debuginfo(int index, SharkValue* value) {
1.246 + return true;
1.247 + }
1.248 +
1.249 + // Local slot helpers
1.250 + protected:
1.251 + bool local_slot_needs_write(int index, SharkValue* value) {
1.252 + return value && value->is_jobject();
1.253 + }
1.254 + bool local_slot_needs_oopmap(int index, SharkValue* value) {
1.255 + return value && value->is_jobject();
1.256 + }
1.257 + bool local_slot_needs_debuginfo(int index, SharkValue* value) {
1.258 + return true;
1.259 + }
1.260 +};
1.261 +
1.262 +class SharkTrapDecacher : public SharkDecacher {
1.263 + public:
1.264 + SharkTrapDecacher(SharkFunction* function, int bci)
1.265 + : SharkDecacher(function, bci) {}
1.266 +
1.267 + // Stack slot helpers
1.268 + protected:
1.269 + bool stack_slot_needs_write(int index, SharkValue* value) {
1.270 + return value != NULL;
1.271 + }
1.272 + bool stack_slot_needs_oopmap(int index, SharkValue* value) {
1.273 + return value && value->is_jobject();
1.274 + }
1.275 + bool stack_slot_needs_debuginfo(int index, SharkValue* value) {
1.276 + return true;
1.277 + }
1.278 +
1.279 + // Local slot helpers
1.280 + protected:
1.281 + bool local_slot_needs_write(int index, SharkValue* value) {
1.282 + return value != NULL;
1.283 + }
1.284 + bool local_slot_needs_oopmap(int index, SharkValue* value) {
1.285 + return value && value->is_jobject();
1.286 + }
1.287 + bool local_slot_needs_debuginfo(int index, SharkValue* value) {
1.288 + return true;
1.289 + }
1.290 +};
1.291 +
1.292 +class SharkCacher : public SharkCacherDecacher {
1.293 + protected:
1.294 + SharkCacher(SharkFunction* function)
1.295 + : SharkCacherDecacher(function) {}
1.296 +
1.297 + // Callbacks
1.298 + protected:
1.299 + void process_stack_slot(int index, SharkValue** value, int offset);
1.300 +
1.301 + void process_oop_tmp_slot(llvm::Value** value, int offset);
1.302 + virtual void process_method_slot(llvm::Value** value, int offset);
1.303 +
1.304 + virtual void process_local_slot(int index, SharkValue** value, int offset);
1.305 +
1.306 + // Stack slot helper
1.307 + protected:
1.308 + virtual bool stack_slot_needs_read(int index, SharkValue* value) = 0;
1.309 +
1.310 + // Local slot helper
1.311 + protected:
1.312 + virtual bool local_slot_needs_read(int index, SharkValue* value) {
1.313 + return value && value->is_jobject();
1.314 + }
1.315 +
1.316 + // Writer helper
1.317 + protected:
1.318 + llvm::Value* read_value_from_frame(const llvm::Type* type, int offset);
1.319 +};
1.320 +
1.321 +class SharkJavaCallCacher : public SharkCacher {
1.322 + public:
1.323 + SharkJavaCallCacher(SharkFunction* function, ciMethod* callee)
1.324 + : SharkCacher(function), _callee(callee) {}
1.325 +
1.326 + private:
1.327 + ciMethod* _callee;
1.328 +
1.329 + protected:
1.330 + ciMethod* callee() const {
1.331 + return _callee;
1.332 + }
1.333 +
1.334 + // Stack slot helper
1.335 + protected:
1.336 + bool stack_slot_needs_read(int index, SharkValue* value) {
1.337 + return value && (index < callee()->return_type()->size() ||
1.338 + value->is_jobject());
1.339 + }
1.340 +};
1.341 +
1.342 +class SharkVMCallCacher : public SharkCacher {
1.343 + public:
1.344 + SharkVMCallCacher(SharkFunction* function)
1.345 + : SharkCacher(function) {}
1.346 +
1.347 + // Stack slot helper
1.348 + protected:
1.349 + bool stack_slot_needs_read(int index, SharkValue* value) {
1.350 + return value && value->is_jobject();
1.351 + }
1.352 +};
1.353 +
1.354 +class SharkFunctionEntryCacher : public SharkCacher {
1.355 + public:
1.356 + SharkFunctionEntryCacher(SharkFunction* function, llvm::Value* method)
1.357 + : SharkCacher(function), _method(method) {}
1.358 +
1.359 + private:
1.360 + llvm::Value* _method;
1.361 +
1.362 + private:
1.363 + llvm::Value* method() const {
1.364 + return _method;
1.365 + }
1.366 +
1.367 + // Method slot callback
1.368 + protected:
1.369 + void process_method_slot(llvm::Value** value, int offset);
1.370 +
1.371 + // Stack slot helper
1.372 + protected:
1.373 + bool stack_slot_needs_read(int index, SharkValue* value) {
1.374 + ShouldNotReachHere(); // entry block shouldn't have stack
1.375 + }
1.376 +
1.377 + // Local slot helper
1.378 + protected:
1.379 + bool local_slot_needs_read(int index, SharkValue* value) {
1.380 + return value != NULL;
1.381 + }
1.382 +};
1.383 +
1.384 +class SharkNormalEntryCacher : public SharkFunctionEntryCacher {
1.385 + public:
1.386 + SharkNormalEntryCacher(SharkFunction* function, llvm::Value* method)
1.387 + : SharkFunctionEntryCacher(function, method) {}
1.388 +};
1.389 +
1.390 +class SharkOSREntryCacher : public SharkFunctionEntryCacher {
1.391 + public:
1.392 + SharkOSREntryCacher(SharkFunction* function,
1.393 + llvm::Value* method,
1.394 + llvm::Value* osr_buf)
1.395 + : SharkFunctionEntryCacher(function, method),
1.396 + _osr_buf(
1.397 + builder()->CreateBitCast(
1.398 + osr_buf,
1.399 + llvm::PointerType::getUnqual(
1.400 + llvm::ArrayType::get(
1.401 + SharkType::intptr_type(),
1.402 + max_locals() + max_monitors() * 2)))) {}
1.403 +
1.404 + private:
1.405 + llvm::Value* _osr_buf;
1.406 +
1.407 + private:
1.408 + llvm::Value* osr_buf() const {
1.409 + return _osr_buf;
1.410 + }
1.411 +
1.412 + // Callbacks
1.413 + protected:
1.414 + void process_monitor(int index, int box_offset, int obj_offset);
1.415 + void process_local_slot(int index, SharkValue** value, int offset);
1.416 +
1.417 + // Helper
1.418 + private:
1.419 + llvm::Value* CreateAddressOfOSRBufEntry(int offset, const llvm::Type* type);
1.420 +};
