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src/hotspot/share/interpreter/zero/bytecodeInterpreter.hpp
524 строки
15 KB
Aleksey Shipilev
8008243: Zero: Implement fast bytecodes
16 ноя 2021, 10:32
16 ноя 2021, 10:32
e436200
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/* * Copyright (c) 2002, 2020, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. * */ #ifndef SHARE_INTERPRETER_BYTECODEINTERPRETER_HPP #define SHARE_INTERPRETER_BYTECODEINTERPRETER_HPP #include "memory/allocation.hpp" #include "oops/method.hpp" #include "runtime/basicLock.hpp" #include "runtime/frame.hpp" #include "runtime/globals.hpp" #include "utilities/globalDefinitions.hpp" #include "utilities/macros.hpp" // JavaStack Implementation #define MORE_STACK(count) \ (topOfStack -= ((count) * Interpreter::stackElementWords)) // CVM definitions find hotspot equivalents... class InterpreterMacroAssembler; union VMJavaVal64 { jlong l; jdouble d; uint32_t v[2]; }; typedef class BytecodeInterpreter* interpreterState; struct call_message { class Method* _callee; // method to call during call_method request address _callee_entry_point; // address to jump to for call_method request int _bcp_advance; // size of the invoke bytecode operation }; struct osr_message { address _osr_buf; // the osr buffer address _osr_entry; // the entry to the osr method }; struct osr_result { nmethod* nm; // osr nmethod address return_addr; // osr blob return address }; // Result returned to frame manager union frame_manager_message { call_message _to_call; // describes callee osr_message _osr; // describes the osr osr_result _osr_result; // result of OSR request }; class BytecodeInterpreter : StackObj { friend class SharedRuntime; friend class AbstractInterpreterGenerator; friend class ZeroInterpreterGenerator; friend class InterpreterMacroAssembler; friend class frame; friend class VMStructs; public: enum messages { no_request = 0, // unused initialize, // Perform one time interpreter initializations (assumes all switches set) // status message to C++ interpreter method_entry, // initial method entry to interpreter method_resume, // frame manager response to return_from_method request (assuming a frame to resume) deopt_resume, // returning from a native call into a deopted frame deopt_resume2, // deopt resume as a result of a PopFrame got_monitors, // frame manager response to more_monitors request rethrow_exception, // unwinding and throwing exception // requests to frame manager from C++ interpreter call_method, // request for new frame from interpreter, manager responds with method_entry return_from_method, // request from interpreter to unwind, manager responds with method_continue more_monitors, // need a new monitor throwing_exception, // unwind stack and rethrow popping_frame, // unwind call and retry call do_osr, // request this invocation be OSR's early_return // early return as commanded by jvmti }; private: JavaThread* _thread; // the vm's java thread pointer address _bcp; // instruction pointer intptr_t* _locals; // local variable pointer ConstantPoolCache* _constants; // constant pool cache Method* _method; // method being executed oop _mirror; // mirror to klass containing method intptr_t* _stack; // expression stack messages _msg; // frame manager <-> interpreter message frame_manager_message _result; // result to frame manager interpreterState _prev_link; // previous interpreter state oop _oop_temp; // mirror for interpreted native, null otherwise intptr_t* _stack_base; // base of expression stack intptr_t* _stack_limit; // limit of expression stack BasicObjectLock* _monitor_base; // base of monitors on the native stack public: // Constructor is only used by the initialization step. All other instances are created // by the frame manager. BytecodeInterpreter(messages msg); // // Deoptimization support // static void layout_interpreterState(interpreterState to_fill, frame* caller, frame* interpreter_frame, Method* method, intptr_t* locals, intptr_t* stack, intptr_t* stack_base, intptr_t* monitor_base, intptr_t* frame_bottom, bool top_frame); /* * Generic 32-bit wide "Java slot" definition. This type occurs * in operand stacks, Java locals, object fields, constant pools. */ union VMJavaVal32 { jint i; jfloat f; class oopDesc* r; uint32_t raw; }; /* * Generic 64-bit Java value definition */ union VMJavaVal64 { jlong l; jdouble d; uint32_t v[2]; }; /* * Generic 32-bit wide "Java slot" definition. This type occurs * in Java locals, object fields, constant pools, and * operand stacks (as a CVMStackVal32). */ typedef union VMSlotVal32 { VMJavaVal32 j; /* For "Java" values */ address a; /* a return created by jsr or jsr_w */ } VMSlotVal32; /* * Generic 32-bit wide stack slot definition. */ union VMStackVal32 { VMJavaVal32 j; /* For "Java" values */ VMSlotVal32 s; /* any value from a "slot" or locals[] */ }; inline JavaThread* thread() { return _thread; } inline address bcp() { return _bcp; } inline void set_bcp(address new_bcp) { _bcp = new_bcp; } inline intptr_t* locals() { return _locals; } inline ConstantPoolCache* constants() { return _constants; } inline Method* method() { return _method; } inline messages msg() { return _msg; } inline void set_msg(messages new_msg) { _msg = new_msg; } inline Method* callee() { return _result._to_call._callee; } inline void set_callee(Method* new_callee) { _result._to_call._callee = new_callee; } inline void set_callee_entry_point(address entry) { _result._to_call._callee_entry_point = entry; } inline void set_osr_buf(address buf) { _result._osr._osr_buf = buf; } inline void set_osr_entry(address entry) { _result._osr._osr_entry = entry; } inline int bcp_advance() { return _result._to_call._bcp_advance; } inline void set_bcp_advance(int count) { _result._to_call._bcp_advance = count; } inline interpreterState prev() { return _prev_link; } inline intptr_t* stack() { return _stack; } inline void set_stack(intptr_t* new_stack) { _stack = new_stack; } inline intptr_t* stack_base() { return _stack_base; } inline intptr_t* stack_limit() { return _stack_limit; } inline BasicObjectLock* monitor_base() { return _monitor_base; } /* * 64-bit Arithmetic: * * The functions below follow the semantics of the * ladd, land, ldiv, lmul, lor, lxor, and lrem bytecodes, * respectively. */ static jlong VMlongAdd(jlong op1, jlong op2); static jlong VMlongAnd(jlong op1, jlong op2); static jlong VMlongDiv(jlong op1, jlong op2); static jlong VMlongMul(jlong op1, jlong op2); static jlong VMlongOr (jlong op1, jlong op2); static jlong VMlongSub(jlong op1, jlong op2); static jlong VMlongXor(jlong op1, jlong op2); static jlong VMlongRem(jlong op1, jlong op2); /* * Shift: * * The functions below follow the semantics of the * lushr, lshl, and lshr bytecodes, respectively. */ static jlong VMlongUshr(jlong op1, jint op2); static jlong VMlongShl (jlong op1, jint op2); static jlong VMlongShr (jlong op1, jint op2); /* * Unary: * * Return the negation of "op" (-op), according to * the semantics of the lneg bytecode. */ static jlong VMlongNeg(jlong op); /* * Return the complement of "op" (~op) */ static jlong VMlongNot(jlong op); /* * Comparisons to 0: */ static int32_t VMlongLtz(jlong op); /* op <= 0 */ static int32_t VMlongGez(jlong op); /* op >= 0 */ static int32_t VMlongEqz(jlong op); /* op == 0 */ /* * Between operands: */ static int32_t VMlongEq(jlong op1, jlong op2); /* op1 == op2 */ static int32_t VMlongNe(jlong op1, jlong op2); /* op1 != op2 */ static int32_t VMlongGe(jlong op1, jlong op2); /* op1 >= op2 */ static int32_t VMlongLe(jlong op1, jlong op2); /* op1 <= op2 */ static int32_t VMlongLt(jlong op1, jlong op2); /* op1 < op2 */ static int32_t VMlongGt(jlong op1, jlong op2); /* op1 > op2 */ /* * Comparisons (returning an jint value: 0, 1, or -1) * * Between operands: * * Compare "op1" and "op2" according to the semantics of the * "lcmp" bytecode. */ static int32_t VMlongCompare(jlong op1, jlong op2); /* * Convert int to long, according to "i2l" bytecode semantics */ static jlong VMint2Long(jint val); /* * Convert long to int, according to "l2i" bytecode semantics */ static jint VMlong2Int(jlong val); /* * Convert long to float, according to "l2f" bytecode semantics */ static jfloat VMlong2Float(jlong val); /* * Convert long to double, according to "l2d" bytecode semantics */ static jdouble VMlong2Double(jlong val); /* * Java floating-point float value manipulation. * * The result argument is, once again, an lvalue. * * Arithmetic: * * The functions below follow the semantics of the * fadd, fsub, fmul, fdiv, and frem bytecodes, * respectively. */ static jfloat VMfloatAdd(jfloat op1, jfloat op2); static jfloat VMfloatSub(jfloat op1, jfloat op2); static jfloat VMfloatMul(jfloat op1, jfloat op2); static jfloat VMfloatDiv(jfloat op1, jfloat op2); static jfloat VMfloatRem(jfloat op1, jfloat op2); /* * Unary: * * Return the negation of "op" (-op), according to * the semantics of the fneg bytecode. */ static jfloat VMfloatNeg(jfloat op); /* * Comparisons (returning an int value: 0, 1, or -1) * * Between operands: * * Compare "op1" and "op2" according to the semantics of the * "fcmpl" (direction is -1) or "fcmpg" (direction is 1) bytecodes. */ static int32_t VMfloatCompare(jfloat op1, jfloat op2, int32_t direction); /* * Conversion: */ /* * Convert float to double, according to "f2d" bytecode semantics */ static jdouble VMfloat2Double(jfloat op); /* ****************************************** * Java double floating-point manipulation. ****************************************** * * The result argument is, once again, an lvalue. * * Conversions: */ /* * Convert double to int, according to "d2i" bytecode semantics */ static jint VMdouble2Int(jdouble val); /* * Convert double to float, according to "d2f" bytecode semantics */ static jfloat VMdouble2Float(jdouble val); /* * Convert int to double, according to "i2d" bytecode semantics */ static jdouble VMint2Double(jint val); /* * Arithmetic: * * The functions below follow the semantics of the * dadd, dsub, ddiv, dmul, and drem bytecodes, respectively. */ static jdouble VMdoubleAdd(jdouble op1, jdouble op2); static jdouble VMdoubleSub(jdouble op1, jdouble op2); static jdouble VMdoubleDiv(jdouble op1, jdouble op2); static jdouble VMdoubleMul(jdouble op1, jdouble op2); static jdouble VMdoubleRem(jdouble op1, jdouble op2); /* * Unary: * * Return the negation of "op" (-op), according to * the semantics of the dneg bytecode. */ static jdouble VMdoubleNeg(jdouble op); /* * Comparisons (returning an int32_t value: 0, 1, or -1) * * Between operands: * * Compare "op1" and "op2" according to the semantics of the * "dcmpl" (direction is -1) or "dcmpg" (direction is 1) bytecodes. */ static int32_t VMdoubleCompare(jdouble op1, jdouble op2, int32_t direction); /* * Copy two typeless 32-bit words from one location to another. * This is semantically equivalent to: * * to[0] = from[0]; * to[1] = from[1]; * * but this interface is provided for those platforms that could * optimize this into a single 64-bit transfer. */ static void VMmemCopy64(uint32_t to[2], const uint32_t from[2]); // Arithmetic operations /* * Java arithmetic methods. * The functions below follow the semantics of the * iadd, isub, imul, idiv, irem, iand, ior, ixor, * and ineg bytecodes, respectively. */ static jint VMintAdd(jint op1, jint op2); static jint VMintSub(jint op1, jint op2); static jint VMintMul(jint op1, jint op2); static jint VMintDiv(jint op1, jint op2); static jint VMintRem(jint op1, jint op2); static jint VMintAnd(jint op1, jint op2); static jint VMintOr (jint op1, jint op2); static jint VMintXor(jint op1, jint op2); /* * Shift Operation: * The functions below follow the semantics of the * iushr, ishl, and ishr bytecodes, respectively. */ static juint VMintUshr(jint op, jint num); static jint VMintShl (jint op, jint num); static jint VMintShr (jint op, jint num); /* * Unary Operation: * * Return the negation of "op" (-op), according to * the semantics of the ineg bytecode. */ static jint VMintNeg(jint op); /* * Int Conversions: */ /* * Convert int to float, according to "i2f" bytecode semantics */ static jfloat VMint2Float(jint val); /* * Convert int to byte, according to "i2b" bytecode semantics */ static jbyte VMint2Byte(jint val); /* * Convert int to char, according to "i2c" bytecode semantics */ static jchar VMint2Char(jint val); /* * Convert int to short, according to "i2s" bytecode semantics */ static jshort VMint2Short(jint val); /*========================================================================= * Bytecode interpreter operations *=======================================================================*/ static void dup(intptr_t *tos); static void dup2(intptr_t *tos); static void dup_x1(intptr_t *tos); /* insert top word two down */ static void dup_x2(intptr_t *tos); /* insert top word three down */ static void dup2_x1(intptr_t *tos); /* insert top 2 slots three down */ static void dup2_x2(intptr_t *tos); /* insert top 2 slots four down */ static void swap(intptr_t *tos); /* swap top two elements */ template<bool JVMTI_ENABLED, bool REWRITE_BYTECODES> static void run(interpreterState istate); static void astore(intptr_t* topOfStack, int stack_offset, intptr_t* locals, int locals_offset); // Support for dup and swap static void copy_stack_slot(intptr_t *tos, int from_offset, int to_offset); #ifndef PRODUCT static const char* C_msg(BytecodeInterpreter::messages msg); void print(); #endif // PRODUCT # include "bytecodeInterpreter_zero.hpp" }; // BytecodeInterpreter #endif // SHARE_INTERPRETER_BYTECODEINTERPRETER_HPP