1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/src/share/vm/shark/sharkCacheDecache.hpp Wed Apr 27 01:25:04 2016 +0800
1.3 @@ -0,0 +1,428 @@
1.4 +/*
1.5 + * Copyright (c) 1999, 2010, 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 +#ifndef SHARE_VM_SHARK_SHARKCACHEDECACHE_HPP
1.30 +#define SHARE_VM_SHARK_SHARKCACHEDECACHE_HPP
1.31 +
1.32 +#include "ci/ciMethod.hpp"
1.33 +#include "code/debugInfoRec.hpp"
1.34 +#include "shark/sharkBuilder.hpp"
1.35 +#include "shark/sharkFunction.hpp"
1.36 +#include "shark/sharkStateScanner.hpp"
1.37 +
1.38 +// Class hierarchy:
1.39 +// - SharkStateScanner
1.40 +// - SharkCacherDecacher
1.41 +// - SharkDecacher
1.42 +// - SharkJavaCallDecacher
1.43 +// - SharkVMCallDecacher
1.44 +// - SharkTrapDecacher
1.45 +// - SharkCacher
1.46 +// - SharkJavaCallCacher
1.47 +// - SharkVMCallCacher
1.48 +// - SharkFunctionEntryCacher
1.49 +// - SharkNormalEntryCacher
1.50 +// - SharkOSREntryCacher
1.51 +
1.52 +class SharkCacherDecacher : public SharkStateScanner {
1.53 + protected:
1.54 + SharkCacherDecacher(SharkFunction* function)
1.55 + : SharkStateScanner(function) {}
1.56 +
1.57 + // Helper
1.58 + protected:
1.59 + static int adjusted_offset(SharkValue* value, int offset) {
1.60 + if (value->is_two_word())
1.61 + offset--;
1.62 + return offset;
1.63 + }
1.64 +};
1.65 +
1.66 +class SharkDecacher : public SharkCacherDecacher {
1.67 + protected:
1.68 + SharkDecacher(SharkFunction* function, int bci)
1.69 + : SharkCacherDecacher(function), _bci(bci) {}
1.70 +
1.71 + private:
1.72 + int _bci;
1.73 +
1.74 + protected:
1.75 + int bci() const {
1.76 + return _bci;
1.77 + }
1.78 +
1.79 + private:
1.80 + int _pc_offset;
1.81 + OopMap* _oopmap;
1.82 + GrowableArray<ScopeValue*>* _exparray;
1.83 + GrowableArray<MonitorValue*>* _monarray;
1.84 + GrowableArray<ScopeValue*>* _locarray;
1.85 +
1.86 + private:
1.87 + int pc_offset() const {
1.88 + return _pc_offset;
1.89 + }
1.90 + OopMap* oopmap() const {
1.91 + return _oopmap;
1.92 + }
1.93 + GrowableArray<ScopeValue*>* exparray() const {
1.94 + return _exparray;
1.95 + }
1.96 + GrowableArray<MonitorValue*>* monarray() const {
1.97 + return _monarray;
1.98 + }
1.99 + GrowableArray<ScopeValue*>* locarray() const {
1.100 + return _locarray;
1.101 + }
1.102 +
1.103 + // Callbacks
1.104 + protected:
1.105 + void start_frame();
1.106 +
1.107 + void start_stack(int stack_depth);
1.108 + void process_stack_slot(int index, SharkValue** value, int offset);
1.109 +
1.110 + void start_monitors(int num_monitors);
1.111 + void process_monitor(int index, int box_offset, int obj_offset);
1.112 +
1.113 + void process_oop_tmp_slot(llvm::Value** value, int offset);
1.114 + void process_method_slot(llvm::Value** value, int offset);
1.115 + void process_pc_slot(int offset);
1.116 +
1.117 + void start_locals();
1.118 + void process_local_slot(int index, SharkValue** value, int offset);
1.119 +
1.120 + void end_frame();
1.121 +
1.122 + // oopmap and debuginfo helpers
1.123 + private:
1.124 + static int oopmap_slot_munge(int offset) {
1.125 + return SharkStack::oopmap_slot_munge(offset);
1.126 + }
1.127 + static VMReg slot2reg(int offset) {
1.128 + return SharkStack::slot2reg(offset);
1.129 + }
1.130 + static Location slot2loc(int offset, Location::Type type) {
1.131 + return Location::new_stk_loc(type, offset * wordSize);
1.132 + }
1.133 + static LocationValue* slot2lv(int offset, Location::Type type) {
1.134 + return new LocationValue(slot2loc(offset, type));
1.135 + }
1.136 + static Location::Type location_type(SharkValue** addr, bool maybe_two_word) {
1.137 + // low addresses this end
1.138 + // Type 32-bit 64-bit
1.139 + // ----------------------------------------------------
1.140 + // stack[0] local[3] jobject oop oop
1.141 + // stack[1] local[2] NULL normal lng
1.142 + // stack[2] local[1] jlong normal invalid
1.143 + // stack[3] local[0] jint normal normal
1.144 + //
1.145 + // high addresses this end
1.146 +
1.147 + SharkValue *value = *addr;
1.148 + if (value) {
1.149 + if (value->is_jobject())
1.150 + return Location::oop;
1.151 +#ifdef _LP64
1.152 + if (value->is_two_word())
1.153 + return Location::invalid;
1.154 +#endif // _LP64
1.155 + return Location::normal;
1.156 + }
1.157 + else {
1.158 + if (maybe_two_word) {
1.159 + value = *(addr - 1);
1.160 + if (value && value->is_two_word()) {
1.161 +#ifdef _LP64
1.162 + if (value->is_jlong())
1.163 + return Location::lng;
1.164 + if (value->is_jdouble())
1.165 + return Location::dbl;
1.166 + ShouldNotReachHere();
1.167 +#else
1.168 + return Location::normal;
1.169 +#endif // _LP64
1.170 + }
1.171 + }
1.172 + return Location::invalid;
1.173 + }
1.174 + }
1.175 +
1.176 + // Stack slot helpers
1.177 + protected:
1.178 + virtual bool stack_slot_needs_write(int index, SharkValue* value) = 0;
1.179 + virtual bool stack_slot_needs_oopmap(int index, SharkValue* value) = 0;
1.180 + virtual bool stack_slot_needs_debuginfo(int index, SharkValue* value) = 0;
1.181 +
1.182 + static Location::Type stack_location_type(int index, SharkValue** addr) {
1.183 + return location_type(addr, *addr == NULL);
1.184 + }
1.185 +
1.186 + // Local slot helpers
1.187 + protected:
1.188 + virtual bool local_slot_needs_write(int index, SharkValue* value) = 0;
1.189 + virtual bool local_slot_needs_oopmap(int index, SharkValue* value) = 0;
1.190 + virtual bool local_slot_needs_debuginfo(int index, SharkValue* value) = 0;
1.191 +
1.192 + static Location::Type local_location_type(int index, SharkValue** addr) {
1.193 + return location_type(addr, index > 0);
1.194 + }
1.195 +
1.196 + // Writer helper
1.197 + protected:
1.198 + void write_value_to_frame(llvm::Type* type,
1.199 + llvm::Value* value,
1.200 + int offset);
1.201 +};
1.202 +
1.203 +class SharkJavaCallDecacher : public SharkDecacher {
1.204 + public:
1.205 + SharkJavaCallDecacher(SharkFunction* function, int bci, ciMethod* callee)
1.206 + : SharkDecacher(function, bci), _callee(callee) {}
1.207 +
1.208 + private:
1.209 + ciMethod* _callee;
1.210 +
1.211 + protected:
1.212 + ciMethod* callee() const {
1.213 + return _callee;
1.214 + }
1.215 +
1.216 + // Stack slot helpers
1.217 + protected:
1.218 + bool stack_slot_needs_write(int index, SharkValue* value) {
1.219 + return value && (index < callee()->arg_size() || value->is_jobject());
1.220 + }
1.221 + bool stack_slot_needs_oopmap(int index, SharkValue* value) {
1.222 + return value && value->is_jobject() && index >= callee()->arg_size();
1.223 + }
1.224 + bool stack_slot_needs_debuginfo(int index, SharkValue* value) {
1.225 + return index >= callee()->arg_size();
1.226 + }
1.227 +
1.228 + // Local slot helpers
1.229 + protected:
1.230 + bool local_slot_needs_write(int index, SharkValue* value) {
1.231 + return value && value->is_jobject();
1.232 + }
1.233 + bool local_slot_needs_oopmap(int index, SharkValue* value) {
1.234 + return value && value->is_jobject();
1.235 + }
1.236 + bool local_slot_needs_debuginfo(int index, SharkValue* value) {
1.237 + return true;
1.238 + }
1.239 +};
1.240 +
1.241 +class SharkVMCallDecacher : public SharkDecacher {
1.242 + public:
1.243 + SharkVMCallDecacher(SharkFunction* function, int bci)
1.244 + : SharkDecacher(function, bci) {}
1.245 +
1.246 + // Stack slot helpers
1.247 + protected:
1.248 + bool stack_slot_needs_write(int index, SharkValue* value) {
1.249 + return value && value->is_jobject();
1.250 + }
1.251 + bool stack_slot_needs_oopmap(int index, SharkValue* value) {
1.252 + return value && value->is_jobject();
1.253 + }
1.254 + bool stack_slot_needs_debuginfo(int index, SharkValue* value) {
1.255 + return true;
1.256 + }
1.257 +
1.258 + // Local slot helpers
1.259 + protected:
1.260 + bool local_slot_needs_write(int index, SharkValue* value) {
1.261 + return value && value->is_jobject();
1.262 + }
1.263 + bool local_slot_needs_oopmap(int index, SharkValue* value) {
1.264 + return value && value->is_jobject();
1.265 + }
1.266 + bool local_slot_needs_debuginfo(int index, SharkValue* value) {
1.267 + return true;
1.268 + }
1.269 +};
1.270 +
1.271 +class SharkTrapDecacher : public SharkDecacher {
1.272 + public:
1.273 + SharkTrapDecacher(SharkFunction* function, int bci)
1.274 + : SharkDecacher(function, bci) {}
1.275 +
1.276 + // Stack slot helpers
1.277 + protected:
1.278 + bool stack_slot_needs_write(int index, SharkValue* value) {
1.279 + return value != NULL;
1.280 + }
1.281 + bool stack_slot_needs_oopmap(int index, SharkValue* value) {
1.282 + return value && value->is_jobject();
1.283 + }
1.284 + bool stack_slot_needs_debuginfo(int index, SharkValue* value) {
1.285 + return true;
1.286 + }
1.287 +
1.288 + // Local slot helpers
1.289 + protected:
1.290 + bool local_slot_needs_write(int index, SharkValue* value) {
1.291 + return value != NULL;
1.292 + }
1.293 + bool local_slot_needs_oopmap(int index, SharkValue* value) {
1.294 + return value && value->is_jobject();
1.295 + }
1.296 + bool local_slot_needs_debuginfo(int index, SharkValue* value) {
1.297 + return true;
1.298 + }
1.299 +};
1.300 +
1.301 +class SharkCacher : public SharkCacherDecacher {
1.302 + protected:
1.303 + SharkCacher(SharkFunction* function)
1.304 + : SharkCacherDecacher(function) {}
1.305 +
1.306 + // Callbacks
1.307 + protected:
1.308 + void process_stack_slot(int index, SharkValue** value, int offset);
1.309 +
1.310 + void process_oop_tmp_slot(llvm::Value** value, int offset);
1.311 + virtual void process_method_slot(llvm::Value** value, int offset);
1.312 +
1.313 + virtual void process_local_slot(int index, SharkValue** value, int offset);
1.314 +
1.315 + // Stack slot helper
1.316 + protected:
1.317 + virtual bool stack_slot_needs_read(int index, SharkValue* value) = 0;
1.318 +
1.319 + // Local slot helper
1.320 + protected:
1.321 + virtual bool local_slot_needs_read(int index, SharkValue* value) {
1.322 + return value && value->is_jobject();
1.323 + }
1.324 +
1.325 + // Writer helper
1.326 + protected:
1.327 + llvm::Value* read_value_from_frame(llvm::Type* type, int offset);
1.328 +};
1.329 +
1.330 +class SharkJavaCallCacher : public SharkCacher {
1.331 + public:
1.332 + SharkJavaCallCacher(SharkFunction* function, ciMethod* callee)
1.333 + : SharkCacher(function), _callee(callee) {}
1.334 +
1.335 + private:
1.336 + ciMethod* _callee;
1.337 +
1.338 + protected:
1.339 + ciMethod* callee() const {
1.340 + return _callee;
1.341 + }
1.342 +
1.343 + // Stack slot helper
1.344 + protected:
1.345 + bool stack_slot_needs_read(int index, SharkValue* value) {
1.346 + return value && (index < callee()->return_type()->size() ||
1.347 + value->is_jobject());
1.348 + }
1.349 +};
1.350 +
1.351 +class SharkVMCallCacher : public SharkCacher {
1.352 + public:
1.353 + SharkVMCallCacher(SharkFunction* function)
1.354 + : SharkCacher(function) {}
1.355 +
1.356 + // Stack slot helper
1.357 + protected:
1.358 + bool stack_slot_needs_read(int index, SharkValue* value) {
1.359 + return value && value->is_jobject();
1.360 + }
1.361 +};
1.362 +
1.363 +class SharkFunctionEntryCacher : public SharkCacher {
1.364 + public:
1.365 + SharkFunctionEntryCacher(SharkFunction* function, llvm::Value* method)
1.366 + : SharkCacher(function), _method(method) {}
1.367 +
1.368 + private:
1.369 + llvm::Value* _method;
1.370 +
1.371 + private:
1.372 + llvm::Value* method() const {
1.373 + return _method;
1.374 + }
1.375 +
1.376 + // Method slot callback
1.377 + protected:
1.378 + void process_method_slot(llvm::Value** value, int offset);
1.379 +
1.380 + // Stack slot helper
1.381 + protected:
1.382 + bool stack_slot_needs_read(int index, SharkValue* value) {
1.383 + ShouldNotReachHere(); // entry block shouldn't have stack
1.384 + }
1.385 +
1.386 + // Local slot helper
1.387 + protected:
1.388 + bool local_slot_needs_read(int index, SharkValue* value) {
1.389 + return value != NULL;
1.390 + }
1.391 +};
1.392 +
1.393 +class SharkNormalEntryCacher : public SharkFunctionEntryCacher {
1.394 + public:
1.395 + SharkNormalEntryCacher(SharkFunction* function, llvm::Value* method)
1.396 + : SharkFunctionEntryCacher(function, method) {}
1.397 +};
1.398 +
1.399 +class SharkOSREntryCacher : public SharkFunctionEntryCacher {
1.400 + public:
1.401 + SharkOSREntryCacher(SharkFunction* function,
1.402 + llvm::Value* method,
1.403 + llvm::Value* osr_buf)
1.404 + : SharkFunctionEntryCacher(function, method),
1.405 + _osr_buf(
1.406 + builder()->CreateBitCast(
1.407 + osr_buf,
1.408 + llvm::PointerType::getUnqual(
1.409 + llvm::ArrayType::get(
1.410 + SharkType::intptr_type(),
1.411 + max_locals() + max_monitors() * 2)))) {}
1.412 +
1.413 + private:
1.414 + llvm::Value* _osr_buf;
1.415 +
1.416 + private:
1.417 + llvm::Value* osr_buf() const {
1.418 + return _osr_buf;
1.419 + }
1.420 +
1.421 + // Callbacks
1.422 + protected:
1.423 + void process_monitor(int index, int box_offset, int obj_offset);
1.424 + void process_local_slot(int index, SharkValue** value, int offset);
1.425 +
1.426 + // Helper
1.427 + private:
1.428 + llvm::Value* CreateAddressOfOSRBufEntry(int offset, llvm::Type* type);
1.429 +};
1.430 +
1.431 +#endif // SHARE_VM_SHARK_SHARKCACHEDECACHE_HPP
