97a51c5c2a
Use RTM for inflated locks and stack locks. Reviewed-by: iveresov, twisti, roland, dcubed
1205 lines
56 KiB
C++
1205 lines
56 KiB
C++
/*
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* Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*
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*/
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#ifndef SHARE_VM_OPTO_COMPILE_HPP
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#define SHARE_VM_OPTO_COMPILE_HPP
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#include "asm/codeBuffer.hpp"
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#include "ci/compilerInterface.hpp"
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#include "code/debugInfoRec.hpp"
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#include "code/exceptionHandlerTable.hpp"
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#include "compiler/compilerOracle.hpp"
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#include "compiler/compileBroker.hpp"
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#include "libadt/dict.hpp"
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#include "libadt/port.hpp"
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#include "libadt/vectset.hpp"
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#include "memory/resourceArea.hpp"
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#include "opto/idealGraphPrinter.hpp"
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#include "opto/phasetype.hpp"
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#include "opto/phase.hpp"
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#include "opto/regmask.hpp"
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#include "runtime/deoptimization.hpp"
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#include "runtime/vmThread.hpp"
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#include "trace/tracing.hpp"
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#include "utilities/ticks.hpp"
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class Block;
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class Bundle;
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class C2Compiler;
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class CallGenerator;
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class ConnectionGraph;
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class InlineTree;
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class Int_Array;
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class Matcher;
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class MachConstantNode;
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class MachConstantBaseNode;
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class MachNode;
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class MachOper;
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class MachSafePointNode;
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class Node;
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class Node_Array;
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class Node_Notes;
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class OptoReg;
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class PhaseCFG;
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class PhaseGVN;
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class PhaseIterGVN;
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class PhaseRegAlloc;
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class PhaseCCP;
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class PhaseCCP_DCE;
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class RootNode;
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class relocInfo;
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class Scope;
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class StartNode;
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class SafePointNode;
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class JVMState;
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class Type;
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class TypeData;
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class TypePtr;
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class TypeOopPtr;
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class TypeFunc;
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class Unique_Node_List;
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class nmethod;
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class WarmCallInfo;
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class Node_Stack;
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struct Final_Reshape_Counts;
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//------------------------------Compile----------------------------------------
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// This class defines a top-level Compiler invocation.
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class Compile : public Phase {
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friend class VMStructs;
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public:
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// Fixed alias indexes. (See also MergeMemNode.)
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enum {
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AliasIdxTop = 1, // pseudo-index, aliases to nothing (used as sentinel value)
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AliasIdxBot = 2, // pseudo-index, aliases to everything
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AliasIdxRaw = 3 // hard-wired index for TypeRawPtr::BOTTOM
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};
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// Variant of TraceTime(NULL, &_t_accumulator, TimeCompiler);
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// Integrated with logging. If logging is turned on, and dolog is true,
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// then brackets are put into the log, with time stamps and node counts.
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// (The time collection itself is always conditionalized on TimeCompiler.)
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class TracePhase : public TraceTime {
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private:
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Compile* C;
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CompileLog* _log;
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const char* _phase_name;
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bool _dolog;
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public:
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TracePhase(const char* name, elapsedTimer* accumulator, bool dolog);
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~TracePhase();
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};
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// Information per category of alias (memory slice)
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class AliasType {
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private:
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friend class Compile;
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int _index; // unique index, used with MergeMemNode
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const TypePtr* _adr_type; // normalized address type
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ciField* _field; // relevant instance field, or null if none
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const Type* _element; // relevant array element type, or null if none
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bool _is_rewritable; // false if the memory is write-once only
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int _general_index; // if this is type is an instance, the general
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// type that this is an instance of
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void Init(int i, const TypePtr* at);
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public:
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int index() const { return _index; }
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const TypePtr* adr_type() const { return _adr_type; }
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ciField* field() const { return _field; }
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const Type* element() const { return _element; }
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bool is_rewritable() const { return _is_rewritable; }
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bool is_volatile() const { return (_field ? _field->is_volatile() : false); }
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int general_index() const { return (_general_index != 0) ? _general_index : _index; }
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void set_rewritable(bool z) { _is_rewritable = z; }
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void set_field(ciField* f) {
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assert(!_field,"");
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_field = f;
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if (f->is_final() || f->is_stable()) {
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// In the case of @Stable, multiple writes are possible but may be assumed to be no-ops.
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_is_rewritable = false;
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}
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}
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void set_element(const Type* e) {
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assert(_element == NULL, "");
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_element = e;
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}
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void print_on(outputStream* st) PRODUCT_RETURN;
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};
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enum {
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logAliasCacheSize = 6,
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AliasCacheSize = (1<<logAliasCacheSize)
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};
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struct AliasCacheEntry { const TypePtr* _adr_type; int _index; }; // simple duple type
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enum {
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trapHistLength = MethodData::_trap_hist_limit
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};
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// Constant entry of the constant table.
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class Constant {
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private:
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BasicType _type;
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union {
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jvalue _value;
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Metadata* _metadata;
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} _v;
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int _offset; // offset of this constant (in bytes) relative to the constant table base.
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float _freq;
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bool _can_be_reused; // true (default) if the value can be shared with other users.
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public:
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Constant() : _type(T_ILLEGAL), _offset(-1), _freq(0.0f), _can_be_reused(true) { _v._value.l = 0; }
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Constant(BasicType type, jvalue value, float freq = 0.0f, bool can_be_reused = true) :
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_type(type),
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_offset(-1),
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_freq(freq),
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_can_be_reused(can_be_reused)
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{
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assert(type != T_METADATA, "wrong constructor");
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_v._value = value;
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}
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Constant(Metadata* metadata, bool can_be_reused = true) :
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_type(T_METADATA),
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_offset(-1),
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_freq(0.0f),
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_can_be_reused(can_be_reused)
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{
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_v._metadata = metadata;
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}
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bool operator==(const Constant& other);
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BasicType type() const { return _type; }
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jlong get_jlong() const { return _v._value.j; }
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jfloat get_jfloat() const { return _v._value.f; }
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jdouble get_jdouble() const { return _v._value.d; }
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jobject get_jobject() const { return _v._value.l; }
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Metadata* get_metadata() const { return _v._metadata; }
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int offset() const { return _offset; }
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void set_offset(int offset) { _offset = offset; }
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float freq() const { return _freq; }
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void inc_freq(float freq) { _freq += freq; }
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bool can_be_reused() const { return _can_be_reused; }
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};
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// Constant table.
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class ConstantTable {
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private:
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GrowableArray<Constant> _constants; // Constants of this table.
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int _size; // Size in bytes the emitted constant table takes (including padding).
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int _table_base_offset; // Offset of the table base that gets added to the constant offsets.
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int _nof_jump_tables; // Number of jump-tables in this constant table.
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static int qsort_comparator(Constant* a, Constant* b);
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// We use negative frequencies to keep the order of the
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// jump-tables in which they were added. Otherwise we get into
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// trouble with relocation.
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float next_jump_table_freq() { return -1.0f * (++_nof_jump_tables); }
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public:
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ConstantTable() :
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_size(-1),
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_table_base_offset(-1), // We can use -1 here since the constant table is always bigger than 2 bytes (-(size / 2), see MachConstantBaseNode::emit).
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_nof_jump_tables(0)
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{}
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int size() const { assert(_size != -1, "not calculated yet"); return _size; }
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int calculate_table_base_offset() const; // AD specific
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void set_table_base_offset(int x) { assert(_table_base_offset == -1 || x == _table_base_offset, "can't change"); _table_base_offset = x; }
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int table_base_offset() const { assert(_table_base_offset != -1, "not set yet"); return _table_base_offset; }
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void emit(CodeBuffer& cb);
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// Returns the offset of the last entry (the top) of the constant table.
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int top_offset() const { assert(_constants.top().offset() != -1, "not bound yet"); return _constants.top().offset(); }
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void calculate_offsets_and_size();
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int find_offset(Constant& con) const;
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void add(Constant& con);
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Constant add(MachConstantNode* n, BasicType type, jvalue value);
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Constant add(Metadata* metadata);
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Constant add(MachConstantNode* n, MachOper* oper);
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Constant add(MachConstantNode* n, jfloat f) {
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jvalue value; value.f = f;
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return add(n, T_FLOAT, value);
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}
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Constant add(MachConstantNode* n, jdouble d) {
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jvalue value; value.d = d;
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return add(n, T_DOUBLE, value);
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}
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// Jump-table
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Constant add_jump_table(MachConstantNode* n);
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void fill_jump_table(CodeBuffer& cb, MachConstantNode* n, GrowableArray<Label*> labels) const;
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};
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private:
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// Fixed parameters to this compilation.
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const int _compile_id;
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const bool _save_argument_registers; // save/restore arg regs for trampolines
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const bool _subsume_loads; // Load can be matched as part of a larger op.
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const bool _do_escape_analysis; // Do escape analysis.
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const bool _eliminate_boxing; // Do boxing elimination.
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ciMethod* _method; // The method being compiled.
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int _entry_bci; // entry bci for osr methods.
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const TypeFunc* _tf; // My kind of signature
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InlineTree* _ilt; // Ditto (temporary).
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address _stub_function; // VM entry for stub being compiled, or NULL
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const char* _stub_name; // Name of stub or adapter being compiled, or NULL
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address _stub_entry_point; // Compile code entry for generated stub, or NULL
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// Control of this compilation.
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int _num_loop_opts; // Number of iterations for doing loop optimiztions
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int _max_inline_size; // Max inline size for this compilation
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int _freq_inline_size; // Max hot method inline size for this compilation
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int _fixed_slots; // count of frame slots not allocated by the register
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// allocator i.e. locks, original deopt pc, etc.
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// For deopt
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int _orig_pc_slot;
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int _orig_pc_slot_offset_in_bytes;
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int _major_progress; // Count of something big happening
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bool _inlining_progress; // progress doing incremental inlining?
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bool _inlining_incrementally;// Are we doing incremental inlining (post parse)
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bool _has_loops; // True if the method _may_ have some loops
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bool _has_split_ifs; // True if the method _may_ have some split-if
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bool _has_unsafe_access; // True if the method _may_ produce faults in unsafe loads or stores.
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bool _has_stringbuilder; // True StringBuffers or StringBuilders are allocated
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bool _has_boxed_value; // True if a boxed object is allocated
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int _max_vector_size; // Maximum size of generated vectors
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uint _trap_hist[trapHistLength]; // Cumulative traps
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bool _trap_can_recompile; // Have we emitted a recompiling trap?
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uint _decompile_count; // Cumulative decompilation counts.
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bool _do_inlining; // True if we intend to do inlining
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bool _do_scheduling; // True if we intend to do scheduling
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bool _do_freq_based_layout; // True if we intend to do frequency based block layout
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bool _do_count_invocations; // True if we generate code to count invocations
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bool _do_method_data_update; // True if we generate code to update MethodData*s
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int _AliasLevel; // Locally-adjusted version of AliasLevel flag.
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bool _print_assembly; // True if we should dump assembly code for this compilation
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bool _print_inlining; // True if we should print inlining for this compilation
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bool _print_intrinsics; // True if we should print intrinsics for this compilation
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#ifndef PRODUCT
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bool _trace_opto_output;
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bool _parsed_irreducible_loop; // True if ciTypeFlow detected irreducible loops during parsing
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#endif
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// JSR 292
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bool _has_method_handle_invokes; // True if this method has MethodHandle invokes.
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RTMState _rtm_state; // State of Restricted Transactional Memory usage
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// Compilation environment.
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Arena _comp_arena; // Arena with lifetime equivalent to Compile
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ciEnv* _env; // CI interface
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CompileLog* _log; // from CompilerThread
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const char* _failure_reason; // for record_failure/failing pattern
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GrowableArray<CallGenerator*>* _intrinsics; // List of intrinsics.
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GrowableArray<Node*>* _macro_nodes; // List of nodes which need to be expanded before matching.
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GrowableArray<Node*>* _predicate_opaqs; // List of Opaque1 nodes for the loop predicates.
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GrowableArray<Node*>* _expensive_nodes; // List of nodes that are expensive to compute and that we'd better not let the GVN freely common
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ConnectionGraph* _congraph;
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#ifndef PRODUCT
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IdealGraphPrinter* _printer;
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#endif
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// Node management
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uint _unique; // Counter for unique Node indices
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VectorSet _dead_node_list; // Set of dead nodes
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uint _dead_node_count; // Number of dead nodes; VectorSet::Size() is O(N).
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// So use this to keep count and make the call O(1).
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debug_only(static int _debug_idx;) // Monotonic counter (not reset), use -XX:BreakAtNode=<idx>
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Arena _node_arena; // Arena for new-space Nodes
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Arena _old_arena; // Arena for old-space Nodes, lifetime during xform
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RootNode* _root; // Unique root of compilation, or NULL after bail-out.
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Node* _top; // Unique top node. (Reset by various phases.)
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Node* _immutable_memory; // Initial memory state
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Node* _recent_alloc_obj;
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Node* _recent_alloc_ctl;
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// Constant table
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ConstantTable _constant_table; // The constant table for this compile.
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MachConstantBaseNode* _mach_constant_base_node; // Constant table base node singleton.
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// Blocked array of debugging and profiling information,
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// tracked per node.
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enum { _log2_node_notes_block_size = 8,
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_node_notes_block_size = (1<<_log2_node_notes_block_size)
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};
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GrowableArray<Node_Notes*>* _node_note_array;
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Node_Notes* _default_node_notes; // default notes for new nodes
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// After parsing and every bulk phase we hang onto the Root instruction.
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// The RootNode instruction is where the whole program begins. It produces
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// the initial Control and BOTTOM for everybody else.
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// Type management
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Arena _Compile_types; // Arena for all types
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Arena* _type_arena; // Alias for _Compile_types except in Initialize_shared()
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Dict* _type_dict; // Intern table
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void* _type_hwm; // Last allocation (see Type::operator new/delete)
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size_t _type_last_size; // Last allocation size (see Type::operator new/delete)
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ciMethod* _last_tf_m; // Cache for
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const TypeFunc* _last_tf; // TypeFunc::make
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AliasType** _alias_types; // List of alias types seen so far.
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int _num_alias_types; // Logical length of _alias_types
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int _max_alias_types; // Physical length of _alias_types
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AliasCacheEntry _alias_cache[AliasCacheSize]; // Gets aliases w/o data structure walking
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// Parsing, optimization
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PhaseGVN* _initial_gvn; // Results of parse-time PhaseGVN
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Unique_Node_List* _for_igvn; // Initial work-list for next round of Iterative GVN
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WarmCallInfo* _warm_calls; // Sorted work-list for heat-based inlining.
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GrowableArray<CallGenerator*> _late_inlines; // List of CallGenerators to be revisited after
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// main parsing has finished.
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GrowableArray<CallGenerator*> _string_late_inlines; // same but for string operations
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GrowableArray<CallGenerator*> _boxing_late_inlines; // same but for boxing operations
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int _late_inlines_pos; // Where in the queue should the next late inlining candidate go (emulate depth first inlining)
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uint _number_of_mh_late_inlines; // number of method handle late inlining still pending
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// Inlining may not happen in parse order which would make
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// PrintInlining output confusing. Keep track of PrintInlining
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// pieces in order.
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class PrintInliningBuffer : public ResourceObj {
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private:
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CallGenerator* _cg;
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stringStream* _ss;
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public:
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PrintInliningBuffer()
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: _cg(NULL) { _ss = new stringStream(); }
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stringStream* ss() const { return _ss; }
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CallGenerator* cg() const { return _cg; }
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void set_cg(CallGenerator* cg) { _cg = cg; }
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};
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GrowableArray<PrintInliningBuffer>* _print_inlining_list;
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int _print_inlining_idx;
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// Only keep nodes in the expensive node list that need to be optimized
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void cleanup_expensive_nodes(PhaseIterGVN &igvn);
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// Use for sorting expensive nodes to bring similar nodes together
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static int cmp_expensive_nodes(Node** n1, Node** n2);
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// Expensive nodes list already sorted?
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bool expensive_nodes_sorted() const;
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// Remove the speculative part of types and clean up the graph
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void remove_speculative_types(PhaseIterGVN &igvn);
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// Are we within a PreserveJVMState block?
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int _preserve_jvm_state;
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void* _replay_inline_data; // Pointer to data loaded from file
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public:
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outputStream* print_inlining_stream() const {
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return _print_inlining_list->adr_at(_print_inlining_idx)->ss();
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}
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void print_inlining_skip(CallGenerator* cg) {
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if (_print_inlining) {
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_print_inlining_list->adr_at(_print_inlining_idx)->set_cg(cg);
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_print_inlining_idx++;
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_print_inlining_list->insert_before(_print_inlining_idx, PrintInliningBuffer());
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}
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}
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void print_inlining_insert(CallGenerator* cg) {
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if (_print_inlining) {
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for (int i = 0; i < _print_inlining_list->length(); i++) {
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if (_print_inlining_list->adr_at(i)->cg() == cg) {
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_print_inlining_list->insert_before(i+1, PrintInliningBuffer());
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|
_print_inlining_idx = i+1;
|
|
_print_inlining_list->adr_at(i)->set_cg(NULL);
|
|
return;
|
|
}
|
|
}
|
|
ShouldNotReachHere();
|
|
}
|
|
}
|
|
|
|
void print_inlining(ciMethod* method, int inline_level, int bci, const char* msg = NULL) {
|
|
stringStream ss;
|
|
CompileTask::print_inlining(&ss, method, inline_level, bci, msg);
|
|
print_inlining_stream()->print(ss.as_string());
|
|
}
|
|
|
|
void* replay_inline_data() const { return _replay_inline_data; }
|
|
|
|
// Dump inlining replay data to the stream.
|
|
void dump_inline_data(outputStream* out);
|
|
|
|
private:
|
|
// Matching, CFG layout, allocation, code generation
|
|
PhaseCFG* _cfg; // Results of CFG finding
|
|
bool _select_24_bit_instr; // We selected an instruction with a 24-bit result
|
|
bool _in_24_bit_fp_mode; // We are emitting instructions with 24-bit results
|
|
int _java_calls; // Number of java calls in the method
|
|
int _inner_loops; // Number of inner loops in the method
|
|
Matcher* _matcher; // Engine to map ideal to machine instructions
|
|
PhaseRegAlloc* _regalloc; // Results of register allocation.
|
|
int _frame_slots; // Size of total frame in stack slots
|
|
CodeOffsets _code_offsets; // Offsets into the code for various interesting entries
|
|
RegMask _FIRST_STACK_mask; // All stack slots usable for spills (depends on frame layout)
|
|
Arena* _indexSet_arena; // control IndexSet allocation within PhaseChaitin
|
|
void* _indexSet_free_block_list; // free list of IndexSet bit blocks
|
|
|
|
uint _node_bundling_limit;
|
|
Bundle* _node_bundling_base; // Information for instruction bundling
|
|
|
|
// Instruction bits passed off to the VM
|
|
int _method_size; // Size of nmethod code segment in bytes
|
|
CodeBuffer _code_buffer; // Where the code is assembled
|
|
int _first_block_size; // Size of unvalidated entry point code / OSR poison code
|
|
ExceptionHandlerTable _handler_table; // Table of native-code exception handlers
|
|
ImplicitExceptionTable _inc_table; // Table of implicit null checks in native code
|
|
OopMapSet* _oop_map_set; // Table of oop maps (one for each safepoint location)
|
|
static int _CompiledZap_count; // counter compared against CompileZap[First/Last]
|
|
BufferBlob* _scratch_buffer_blob; // For temporary code buffers.
|
|
relocInfo* _scratch_locs_memory; // For temporary code buffers.
|
|
int _scratch_const_size; // For temporary code buffers.
|
|
bool _in_scratch_emit_size; // true when in scratch_emit_size.
|
|
|
|
public:
|
|
// Accessors
|
|
|
|
// The Compile instance currently active in this (compiler) thread.
|
|
static Compile* current() {
|
|
return (Compile*) ciEnv::current()->compiler_data();
|
|
}
|
|
|
|
// ID for this compilation. Useful for setting breakpoints in the debugger.
|
|
int compile_id() const { return _compile_id; }
|
|
|
|
// Does this compilation allow instructions to subsume loads? User
|
|
// instructions that subsume a load may result in an unschedulable
|
|
// instruction sequence.
|
|
bool subsume_loads() const { return _subsume_loads; }
|
|
/** Do escape analysis. */
|
|
bool do_escape_analysis() const { return _do_escape_analysis; }
|
|
/** Do boxing elimination. */
|
|
bool eliminate_boxing() const { return _eliminate_boxing; }
|
|
/** Do aggressive boxing elimination. */
|
|
bool aggressive_unboxing() const { return _eliminate_boxing && AggressiveUnboxing; }
|
|
bool save_argument_registers() const { return _save_argument_registers; }
|
|
|
|
|
|
// Other fixed compilation parameters.
|
|
ciMethod* method() const { return _method; }
|
|
int entry_bci() const { return _entry_bci; }
|
|
bool is_osr_compilation() const { return _entry_bci != InvocationEntryBci; }
|
|
bool is_method_compilation() const { return (_method != NULL && !_method->flags().is_native()); }
|
|
const TypeFunc* tf() const { assert(_tf!=NULL, ""); return _tf; }
|
|
void init_tf(const TypeFunc* tf) { assert(_tf==NULL, ""); _tf = tf; }
|
|
InlineTree* ilt() const { return _ilt; }
|
|
address stub_function() const { return _stub_function; }
|
|
const char* stub_name() const { return _stub_name; }
|
|
address stub_entry_point() const { return _stub_entry_point; }
|
|
|
|
// Control of this compilation.
|
|
int fixed_slots() const { assert(_fixed_slots >= 0, ""); return _fixed_slots; }
|
|
void set_fixed_slots(int n) { _fixed_slots = n; }
|
|
int major_progress() const { return _major_progress; }
|
|
void set_inlining_progress(bool z) { _inlining_progress = z; }
|
|
int inlining_progress() const { return _inlining_progress; }
|
|
void set_inlining_incrementally(bool z) { _inlining_incrementally = z; }
|
|
int inlining_incrementally() const { return _inlining_incrementally; }
|
|
void set_major_progress() { _major_progress++; }
|
|
void clear_major_progress() { _major_progress = 0; }
|
|
int num_loop_opts() const { return _num_loop_opts; }
|
|
void set_num_loop_opts(int n) { _num_loop_opts = n; }
|
|
int max_inline_size() const { return _max_inline_size; }
|
|
void set_freq_inline_size(int n) { _freq_inline_size = n; }
|
|
int freq_inline_size() const { return _freq_inline_size; }
|
|
void set_max_inline_size(int n) { _max_inline_size = n; }
|
|
bool has_loops() const { return _has_loops; }
|
|
void set_has_loops(bool z) { _has_loops = z; }
|
|
bool has_split_ifs() const { return _has_split_ifs; }
|
|
void set_has_split_ifs(bool z) { _has_split_ifs = z; }
|
|
bool has_unsafe_access() const { return _has_unsafe_access; }
|
|
void set_has_unsafe_access(bool z) { _has_unsafe_access = z; }
|
|
bool has_stringbuilder() const { return _has_stringbuilder; }
|
|
void set_has_stringbuilder(bool z) { _has_stringbuilder = z; }
|
|
bool has_boxed_value() const { return _has_boxed_value; }
|
|
void set_has_boxed_value(bool z) { _has_boxed_value = z; }
|
|
int max_vector_size() const { return _max_vector_size; }
|
|
void set_max_vector_size(int s) { _max_vector_size = s; }
|
|
void set_trap_count(uint r, uint c) { assert(r < trapHistLength, "oob"); _trap_hist[r] = c; }
|
|
uint trap_count(uint r) const { assert(r < trapHistLength, "oob"); return _trap_hist[r]; }
|
|
bool trap_can_recompile() const { return _trap_can_recompile; }
|
|
void set_trap_can_recompile(bool z) { _trap_can_recompile = z; }
|
|
uint decompile_count() const { return _decompile_count; }
|
|
void set_decompile_count(uint c) { _decompile_count = c; }
|
|
bool allow_range_check_smearing() const;
|
|
bool do_inlining() const { return _do_inlining; }
|
|
void set_do_inlining(bool z) { _do_inlining = z; }
|
|
bool do_scheduling() const { return _do_scheduling; }
|
|
void set_do_scheduling(bool z) { _do_scheduling = z; }
|
|
bool do_freq_based_layout() const{ return _do_freq_based_layout; }
|
|
void set_do_freq_based_layout(bool z){ _do_freq_based_layout = z; }
|
|
bool do_count_invocations() const{ return _do_count_invocations; }
|
|
void set_do_count_invocations(bool z){ _do_count_invocations = z; }
|
|
bool do_method_data_update() const { return _do_method_data_update; }
|
|
void set_do_method_data_update(bool z) { _do_method_data_update = z; }
|
|
int AliasLevel() const { return _AliasLevel; }
|
|
bool print_assembly() const { return _print_assembly; }
|
|
void set_print_assembly(bool z) { _print_assembly = z; }
|
|
bool print_inlining() const { return _print_inlining; }
|
|
void set_print_inlining(bool z) { _print_inlining = z; }
|
|
bool print_intrinsics() const { return _print_intrinsics; }
|
|
void set_print_intrinsics(bool z) { _print_intrinsics = z; }
|
|
RTMState rtm_state() const { return _rtm_state; }
|
|
void set_rtm_state(RTMState s) { _rtm_state = s; }
|
|
bool use_rtm() const { return (_rtm_state & NoRTM) == 0; }
|
|
bool profile_rtm() const { return _rtm_state == ProfileRTM; }
|
|
// check the CompilerOracle for special behaviours for this compile
|
|
bool method_has_option(const char * option) {
|
|
return method() != NULL && method()->has_option(option);
|
|
}
|
|
#ifndef PRODUCT
|
|
bool trace_opto_output() const { return _trace_opto_output; }
|
|
bool parsed_irreducible_loop() const { return _parsed_irreducible_loop; }
|
|
void set_parsed_irreducible_loop(bool z) { _parsed_irreducible_loop = z; }
|
|
int _in_dump_cnt; // Required for dumping ir nodes.
|
|
#endif
|
|
|
|
// JSR 292
|
|
bool has_method_handle_invokes() const { return _has_method_handle_invokes; }
|
|
void set_has_method_handle_invokes(bool z) { _has_method_handle_invokes = z; }
|
|
|
|
Ticks _latest_stage_start_counter;
|
|
|
|
void begin_method() {
|
|
#ifndef PRODUCT
|
|
if (_printer) _printer->begin_method(this);
|
|
#endif
|
|
C->_latest_stage_start_counter.stamp();
|
|
}
|
|
|
|
void print_method(CompilerPhaseType cpt, int level = 1) {
|
|
EventCompilerPhase event;
|
|
if (event.should_commit()) {
|
|
event.set_starttime(C->_latest_stage_start_counter);
|
|
event.set_phase((u1) cpt);
|
|
event.set_compileID(C->_compile_id);
|
|
event.set_phaseLevel(level);
|
|
event.commit();
|
|
}
|
|
|
|
|
|
#ifndef PRODUCT
|
|
if (_printer) _printer->print_method(this, CompilerPhaseTypeHelper::to_string(cpt), level);
|
|
#endif
|
|
C->_latest_stage_start_counter.stamp();
|
|
}
|
|
|
|
void end_method(int level = 1) {
|
|
EventCompilerPhase event;
|
|
if (event.should_commit()) {
|
|
event.set_starttime(C->_latest_stage_start_counter);
|
|
event.set_phase((u1) PHASE_END);
|
|
event.set_compileID(C->_compile_id);
|
|
event.set_phaseLevel(level);
|
|
event.commit();
|
|
}
|
|
#ifndef PRODUCT
|
|
if (_printer) _printer->end_method();
|
|
#endif
|
|
}
|
|
|
|
int macro_count() const { return _macro_nodes->length(); }
|
|
int predicate_count() const { return _predicate_opaqs->length();}
|
|
int expensive_count() const { return _expensive_nodes->length(); }
|
|
Node* macro_node(int idx) const { return _macro_nodes->at(idx); }
|
|
Node* predicate_opaque1_node(int idx) const { return _predicate_opaqs->at(idx);}
|
|
Node* expensive_node(int idx) const { return _expensive_nodes->at(idx); }
|
|
ConnectionGraph* congraph() { return _congraph;}
|
|
void set_congraph(ConnectionGraph* congraph) { _congraph = congraph;}
|
|
void add_macro_node(Node * n) {
|
|
//assert(n->is_macro(), "must be a macro node");
|
|
assert(!_macro_nodes->contains(n), " duplicate entry in expand list");
|
|
_macro_nodes->append(n);
|
|
}
|
|
void remove_macro_node(Node * n) {
|
|
// this function may be called twice for a node so check
|
|
// that the node is in the array before attempting to remove it
|
|
if (_macro_nodes->contains(n))
|
|
_macro_nodes->remove(n);
|
|
// remove from _predicate_opaqs list also if it is there
|
|
if (predicate_count() > 0 && _predicate_opaqs->contains(n)){
|
|
_predicate_opaqs->remove(n);
|
|
}
|
|
}
|
|
void add_expensive_node(Node * n);
|
|
void remove_expensive_node(Node * n) {
|
|
if (_expensive_nodes->contains(n)) {
|
|
_expensive_nodes->remove(n);
|
|
}
|
|
}
|
|
void add_predicate_opaq(Node * n) {
|
|
assert(!_predicate_opaqs->contains(n), " duplicate entry in predicate opaque1");
|
|
assert(_macro_nodes->contains(n), "should have already been in macro list");
|
|
_predicate_opaqs->append(n);
|
|
}
|
|
// remove the opaque nodes that protect the predicates so that the unused checks and
|
|
// uncommon traps will be eliminated from the graph.
|
|
void cleanup_loop_predicates(PhaseIterGVN &igvn);
|
|
bool is_predicate_opaq(Node * n) {
|
|
return _predicate_opaqs->contains(n);
|
|
}
|
|
|
|
// Are there candidate expensive nodes for optimization?
|
|
bool should_optimize_expensive_nodes(PhaseIterGVN &igvn);
|
|
// Check whether n1 and n2 are similar
|
|
static int cmp_expensive_nodes(Node* n1, Node* n2);
|
|
// Sort expensive nodes to locate similar expensive nodes
|
|
void sort_expensive_nodes();
|
|
|
|
// Compilation environment.
|
|
Arena* comp_arena() { return &_comp_arena; }
|
|
ciEnv* env() const { return _env; }
|
|
CompileLog* log() const { return _log; }
|
|
bool failing() const { return _env->failing() || _failure_reason != NULL; }
|
|
const char* failure_reason() { return _failure_reason; }
|
|
bool failure_reason_is(const char* r) { return (r==_failure_reason) || (r!=NULL && _failure_reason!=NULL && strcmp(r, _failure_reason)==0); }
|
|
|
|
void record_failure(const char* reason);
|
|
void record_method_not_compilable(const char* reason, bool all_tiers = false) {
|
|
// All bailouts cover "all_tiers" when TieredCompilation is off.
|
|
if (!TieredCompilation) all_tiers = true;
|
|
env()->record_method_not_compilable(reason, all_tiers);
|
|
// Record failure reason.
|
|
record_failure(reason);
|
|
}
|
|
void record_method_not_compilable_all_tiers(const char* reason) {
|
|
record_method_not_compilable(reason, true);
|
|
}
|
|
bool check_node_count(uint margin, const char* reason) {
|
|
if (live_nodes() + margin > (uint)MaxNodeLimit) {
|
|
record_method_not_compilable(reason);
|
|
return true;
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
// Node management
|
|
uint unique() const { return _unique; }
|
|
uint next_unique() { return _unique++; }
|
|
void set_unique(uint i) { _unique = i; }
|
|
static int debug_idx() { return debug_only(_debug_idx)+0; }
|
|
static void set_debug_idx(int i) { debug_only(_debug_idx = i); }
|
|
Arena* node_arena() { return &_node_arena; }
|
|
Arena* old_arena() { return &_old_arena; }
|
|
RootNode* root() const { return _root; }
|
|
void set_root(RootNode* r) { _root = r; }
|
|
StartNode* start() const; // (Derived from root.)
|
|
void init_start(StartNode* s);
|
|
Node* immutable_memory();
|
|
|
|
Node* recent_alloc_ctl() const { return _recent_alloc_ctl; }
|
|
Node* recent_alloc_obj() const { return _recent_alloc_obj; }
|
|
void set_recent_alloc(Node* ctl, Node* obj) {
|
|
_recent_alloc_ctl = ctl;
|
|
_recent_alloc_obj = obj;
|
|
}
|
|
void record_dead_node(uint idx) { if (_dead_node_list.test_set(idx)) return;
|
|
_dead_node_count++;
|
|
}
|
|
bool is_dead_node(uint idx) { return _dead_node_list.test(idx) != 0; }
|
|
uint dead_node_count() { return _dead_node_count; }
|
|
void reset_dead_node_list() { _dead_node_list.Reset();
|
|
_dead_node_count = 0;
|
|
}
|
|
uint live_nodes() const {
|
|
int val = _unique - _dead_node_count;
|
|
assert (val >= 0, err_msg_res("number of tracked dead nodes %d more than created nodes %d", _unique, _dead_node_count));
|
|
return (uint) val;
|
|
}
|
|
#ifdef ASSERT
|
|
uint count_live_nodes_by_graph_walk();
|
|
void print_missing_nodes();
|
|
#endif
|
|
|
|
// Constant table
|
|
ConstantTable& constant_table() { return _constant_table; }
|
|
|
|
MachConstantBaseNode* mach_constant_base_node();
|
|
bool has_mach_constant_base_node() const { return _mach_constant_base_node != NULL; }
|
|
// Generated by adlc, true if CallNode requires MachConstantBase.
|
|
bool needs_clone_jvms();
|
|
|
|
// Handy undefined Node
|
|
Node* top() const { return _top; }
|
|
|
|
// these are used by guys who need to know about creation and transformation of top:
|
|
Node* cached_top_node() { return _top; }
|
|
void set_cached_top_node(Node* tn);
|
|
|
|
GrowableArray<Node_Notes*>* node_note_array() const { return _node_note_array; }
|
|
void set_node_note_array(GrowableArray<Node_Notes*>* arr) { _node_note_array = arr; }
|
|
Node_Notes* default_node_notes() const { return _default_node_notes; }
|
|
void set_default_node_notes(Node_Notes* n) { _default_node_notes = n; }
|
|
|
|
Node_Notes* node_notes_at(int idx) {
|
|
return locate_node_notes(_node_note_array, idx, false);
|
|
}
|
|
inline bool set_node_notes_at(int idx, Node_Notes* value);
|
|
|
|
// Copy notes from source to dest, if they exist.
|
|
// Overwrite dest only if source provides something.
|
|
// Return true if information was moved.
|
|
bool copy_node_notes_to(Node* dest, Node* source);
|
|
|
|
// Workhorse function to sort out the blocked Node_Notes array:
|
|
inline Node_Notes* locate_node_notes(GrowableArray<Node_Notes*>* arr,
|
|
int idx, bool can_grow = false);
|
|
|
|
void grow_node_notes(GrowableArray<Node_Notes*>* arr, int grow_by);
|
|
|
|
// Type management
|
|
Arena* type_arena() { return _type_arena; }
|
|
Dict* type_dict() { return _type_dict; }
|
|
void* type_hwm() { return _type_hwm; }
|
|
size_t type_last_size() { return _type_last_size; }
|
|
int num_alias_types() { return _num_alias_types; }
|
|
|
|
void init_type_arena() { _type_arena = &_Compile_types; }
|
|
void set_type_arena(Arena* a) { _type_arena = a; }
|
|
void set_type_dict(Dict* d) { _type_dict = d; }
|
|
void set_type_hwm(void* p) { _type_hwm = p; }
|
|
void set_type_last_size(size_t sz) { _type_last_size = sz; }
|
|
|
|
const TypeFunc* last_tf(ciMethod* m) {
|
|
return (m == _last_tf_m) ? _last_tf : NULL;
|
|
}
|
|
void set_last_tf(ciMethod* m, const TypeFunc* tf) {
|
|
assert(m != NULL || tf == NULL, "");
|
|
_last_tf_m = m;
|
|
_last_tf = tf;
|
|
}
|
|
|
|
AliasType* alias_type(int idx) { assert(idx < num_alias_types(), "oob"); return _alias_types[idx]; }
|
|
AliasType* alias_type(const TypePtr* adr_type, ciField* field = NULL) { return find_alias_type(adr_type, false, field); }
|
|
bool have_alias_type(const TypePtr* adr_type);
|
|
AliasType* alias_type(ciField* field);
|
|
|
|
int get_alias_index(const TypePtr* at) { return alias_type(at)->index(); }
|
|
const TypePtr* get_adr_type(uint aidx) { return alias_type(aidx)->adr_type(); }
|
|
int get_general_index(uint aidx) { return alias_type(aidx)->general_index(); }
|
|
|
|
// Building nodes
|
|
void rethrow_exceptions(JVMState* jvms);
|
|
void return_values(JVMState* jvms);
|
|
JVMState* build_start_state(StartNode* start, const TypeFunc* tf);
|
|
|
|
// Decide how to build a call.
|
|
// The profile factor is a discount to apply to this site's interp. profile.
|
|
CallGenerator* call_generator(ciMethod* call_method, int vtable_index, bool call_does_dispatch,
|
|
JVMState* jvms, bool allow_inline, float profile_factor, ciKlass* speculative_receiver_type = NULL,
|
|
bool allow_intrinsics = true, bool delayed_forbidden = false);
|
|
bool should_delay_inlining(ciMethod* call_method, JVMState* jvms) {
|
|
return should_delay_string_inlining(call_method, jvms) ||
|
|
should_delay_boxing_inlining(call_method, jvms);
|
|
}
|
|
bool should_delay_string_inlining(ciMethod* call_method, JVMState* jvms);
|
|
bool should_delay_boxing_inlining(ciMethod* call_method, JVMState* jvms);
|
|
|
|
// Helper functions to identify inlining potential at call-site
|
|
ciMethod* optimize_virtual_call(ciMethod* caller, int bci, ciInstanceKlass* klass,
|
|
ciMethod* callee, const TypeOopPtr* receiver_type,
|
|
bool is_virtual,
|
|
bool &call_does_dispatch, int &vtable_index);
|
|
ciMethod* optimize_inlining(ciMethod* caller, int bci, ciInstanceKlass* klass,
|
|
ciMethod* callee, const TypeOopPtr* receiver_type);
|
|
|
|
// Report if there were too many traps at a current method and bci.
|
|
// Report if a trap was recorded, and/or PerMethodTrapLimit was exceeded.
|
|
// If there is no MDO at all, report no trap unless told to assume it.
|
|
bool too_many_traps(ciMethod* method, int bci, Deoptimization::DeoptReason reason);
|
|
// This version, unspecific to a particular bci, asks if
|
|
// PerMethodTrapLimit was exceeded for all inlined methods seen so far.
|
|
bool too_many_traps(Deoptimization::DeoptReason reason,
|
|
// Privately used parameter for logging:
|
|
ciMethodData* logmd = NULL);
|
|
// Report if there were too many recompiles at a method and bci.
|
|
bool too_many_recompiles(ciMethod* method, int bci, Deoptimization::DeoptReason reason);
|
|
// Return a bitset with the reasons where deoptimization is allowed,
|
|
// i.e., where there were not too many uncommon traps.
|
|
int _allowed_reasons;
|
|
int allowed_deopt_reasons() { return _allowed_reasons; }
|
|
void set_allowed_deopt_reasons();
|
|
|
|
// Parsing, optimization
|
|
PhaseGVN* initial_gvn() { return _initial_gvn; }
|
|
Unique_Node_List* for_igvn() { return _for_igvn; }
|
|
inline void record_for_igvn(Node* n); // Body is after class Unique_Node_List.
|
|
void set_initial_gvn(PhaseGVN *gvn) { _initial_gvn = gvn; }
|
|
void set_for_igvn(Unique_Node_List *for_igvn) { _for_igvn = for_igvn; }
|
|
|
|
// Replace n by nn using initial_gvn, calling hash_delete and
|
|
// record_for_igvn as needed.
|
|
void gvn_replace_by(Node* n, Node* nn);
|
|
|
|
|
|
void identify_useful_nodes(Unique_Node_List &useful);
|
|
void update_dead_node_list(Unique_Node_List &useful);
|
|
void remove_useless_nodes (Unique_Node_List &useful);
|
|
|
|
WarmCallInfo* warm_calls() const { return _warm_calls; }
|
|
void set_warm_calls(WarmCallInfo* l) { _warm_calls = l; }
|
|
WarmCallInfo* pop_warm_call();
|
|
|
|
// Record this CallGenerator for inlining at the end of parsing.
|
|
void add_late_inline(CallGenerator* cg) {
|
|
_late_inlines.insert_before(_late_inlines_pos, cg);
|
|
_late_inlines_pos++;
|
|
}
|
|
|
|
void prepend_late_inline(CallGenerator* cg) {
|
|
_late_inlines.insert_before(0, cg);
|
|
}
|
|
|
|
void add_string_late_inline(CallGenerator* cg) {
|
|
_string_late_inlines.push(cg);
|
|
}
|
|
|
|
void add_boxing_late_inline(CallGenerator* cg) {
|
|
_boxing_late_inlines.push(cg);
|
|
}
|
|
|
|
void remove_useless_late_inlines(GrowableArray<CallGenerator*>* inlines, Unique_Node_List &useful);
|
|
|
|
void dump_inlining();
|
|
|
|
bool over_inlining_cutoff() const {
|
|
if (!inlining_incrementally()) {
|
|
return unique() > (uint)NodeCountInliningCutoff;
|
|
} else {
|
|
return live_nodes() > (uint)LiveNodeCountInliningCutoff;
|
|
}
|
|
}
|
|
|
|
void inc_number_of_mh_late_inlines() { _number_of_mh_late_inlines++; }
|
|
void dec_number_of_mh_late_inlines() { assert(_number_of_mh_late_inlines > 0, "_number_of_mh_late_inlines < 0 !"); _number_of_mh_late_inlines--; }
|
|
bool has_mh_late_inlines() const { return _number_of_mh_late_inlines > 0; }
|
|
|
|
void inline_incrementally_one(PhaseIterGVN& igvn);
|
|
void inline_incrementally(PhaseIterGVN& igvn);
|
|
void inline_string_calls(bool parse_time);
|
|
void inline_boxing_calls(PhaseIterGVN& igvn);
|
|
|
|
// Matching, CFG layout, allocation, code generation
|
|
PhaseCFG* cfg() { return _cfg; }
|
|
bool select_24_bit_instr() const { return _select_24_bit_instr; }
|
|
bool in_24_bit_fp_mode() const { return _in_24_bit_fp_mode; }
|
|
bool has_java_calls() const { return _java_calls > 0; }
|
|
int java_calls() const { return _java_calls; }
|
|
int inner_loops() const { return _inner_loops; }
|
|
Matcher* matcher() { return _matcher; }
|
|
PhaseRegAlloc* regalloc() { return _regalloc; }
|
|
int frame_slots() const { return _frame_slots; }
|
|
int frame_size_in_words() const; // frame_slots in units of the polymorphic 'words'
|
|
RegMask& FIRST_STACK_mask() { return _FIRST_STACK_mask; }
|
|
Arena* indexSet_arena() { return _indexSet_arena; }
|
|
void* indexSet_free_block_list() { return _indexSet_free_block_list; }
|
|
uint node_bundling_limit() { return _node_bundling_limit; }
|
|
Bundle* node_bundling_base() { return _node_bundling_base; }
|
|
void set_node_bundling_limit(uint n) { _node_bundling_limit = n; }
|
|
void set_node_bundling_base(Bundle* b) { _node_bundling_base = b; }
|
|
bool starts_bundle(const Node *n) const;
|
|
bool need_stack_bang(int frame_size_in_bytes) const;
|
|
bool need_register_stack_bang() const;
|
|
|
|
void set_matcher(Matcher* m) { _matcher = m; }
|
|
//void set_regalloc(PhaseRegAlloc* ra) { _regalloc = ra; }
|
|
void set_indexSet_arena(Arena* a) { _indexSet_arena = a; }
|
|
void set_indexSet_free_block_list(void* p) { _indexSet_free_block_list = p; }
|
|
|
|
// Remember if this compilation changes hardware mode to 24-bit precision
|
|
void set_24_bit_selection_and_mode(bool selection, bool mode) {
|
|
_select_24_bit_instr = selection;
|
|
_in_24_bit_fp_mode = mode;
|
|
}
|
|
|
|
void set_java_calls(int z) { _java_calls = z; }
|
|
void set_inner_loops(int z) { _inner_loops = z; }
|
|
|
|
// Instruction bits passed off to the VM
|
|
int code_size() { return _method_size; }
|
|
CodeBuffer* code_buffer() { return &_code_buffer; }
|
|
int first_block_size() { return _first_block_size; }
|
|
void set_frame_complete(int off) { _code_offsets.set_value(CodeOffsets::Frame_Complete, off); }
|
|
ExceptionHandlerTable* handler_table() { return &_handler_table; }
|
|
ImplicitExceptionTable* inc_table() { return &_inc_table; }
|
|
OopMapSet* oop_map_set() { return _oop_map_set; }
|
|
DebugInformationRecorder* debug_info() { return env()->debug_info(); }
|
|
Dependencies* dependencies() { return env()->dependencies(); }
|
|
static int CompiledZap_count() { return _CompiledZap_count; }
|
|
BufferBlob* scratch_buffer_blob() { return _scratch_buffer_blob; }
|
|
void init_scratch_buffer_blob(int const_size);
|
|
void clear_scratch_buffer_blob();
|
|
void set_scratch_buffer_blob(BufferBlob* b) { _scratch_buffer_blob = b; }
|
|
relocInfo* scratch_locs_memory() { return _scratch_locs_memory; }
|
|
void set_scratch_locs_memory(relocInfo* b) { _scratch_locs_memory = b; }
|
|
|
|
// emit to scratch blob, report resulting size
|
|
uint scratch_emit_size(const Node* n);
|
|
void set_in_scratch_emit_size(bool x) { _in_scratch_emit_size = x; }
|
|
bool in_scratch_emit_size() const { return _in_scratch_emit_size; }
|
|
|
|
enum ScratchBufferBlob {
|
|
MAX_inst_size = 1024,
|
|
MAX_locs_size = 128, // number of relocInfo elements
|
|
MAX_const_size = 128,
|
|
MAX_stubs_size = 128
|
|
};
|
|
|
|
// Major entry point. Given a Scope, compile the associated method.
|
|
// For normal compilations, entry_bci is InvocationEntryBci. For on stack
|
|
// replacement, entry_bci indicates the bytecode for which to compile a
|
|
// continuation.
|
|
Compile(ciEnv* ci_env, C2Compiler* compiler, ciMethod* target,
|
|
int entry_bci, bool subsume_loads, bool do_escape_analysis,
|
|
bool eliminate_boxing);
|
|
|
|
// Second major entry point. From the TypeFunc signature, generate code
|
|
// to pass arguments from the Java calling convention to the C calling
|
|
// convention.
|
|
Compile(ciEnv* ci_env, const TypeFunc *(*gen)(),
|
|
address stub_function, const char *stub_name,
|
|
int is_fancy_jump, bool pass_tls,
|
|
bool save_arg_registers, bool return_pc);
|
|
|
|
// From the TypeFunc signature, generate code to pass arguments
|
|
// from Compiled calling convention to Interpreter's calling convention
|
|
void Generate_Compiled_To_Interpreter_Graph(const TypeFunc *tf, address interpreter_entry);
|
|
|
|
// From the TypeFunc signature, generate code to pass arguments
|
|
// from Interpreter's calling convention to Compiler's calling convention
|
|
void Generate_Interpreter_To_Compiled_Graph(const TypeFunc *tf);
|
|
|
|
// Are we compiling a method?
|
|
bool has_method() { return method() != NULL; }
|
|
|
|
// Maybe print some information about this compile.
|
|
void print_compile_messages();
|
|
|
|
// Final graph reshaping, a post-pass after the regular optimizer is done.
|
|
bool final_graph_reshaping();
|
|
|
|
// returns true if adr is completely contained in the given alias category
|
|
bool must_alias(const TypePtr* adr, int alias_idx);
|
|
|
|
// returns true if adr overlaps with the given alias category
|
|
bool can_alias(const TypePtr* adr, int alias_idx);
|
|
|
|
// Driver for converting compiler's IR into machine code bits
|
|
void Output();
|
|
|
|
// Accessors for node bundling info.
|
|
Bundle* node_bundling(const Node *n);
|
|
bool valid_bundle_info(const Node *n);
|
|
|
|
// Schedule and Bundle the instructions
|
|
void ScheduleAndBundle();
|
|
|
|
// Build OopMaps for each GC point
|
|
void BuildOopMaps();
|
|
|
|
// Append debug info for the node "local" at safepoint node "sfpt" to the
|
|
// "array", May also consult and add to "objs", which describes the
|
|
// scalar-replaced objects.
|
|
void FillLocArray( int idx, MachSafePointNode* sfpt,
|
|
Node *local, GrowableArray<ScopeValue*> *array,
|
|
GrowableArray<ScopeValue*> *objs );
|
|
|
|
// If "objs" contains an ObjectValue whose id is "id", returns it, else NULL.
|
|
static ObjectValue* sv_for_node_id(GrowableArray<ScopeValue*> *objs, int id);
|
|
// Requres that "objs" does not contains an ObjectValue whose id matches
|
|
// that of "sv. Appends "sv".
|
|
static void set_sv_for_object_node(GrowableArray<ScopeValue*> *objs,
|
|
ObjectValue* sv );
|
|
|
|
// Process an OopMap Element while emitting nodes
|
|
void Process_OopMap_Node(MachNode *mach, int code_offset);
|
|
|
|
// Initialize code buffer
|
|
CodeBuffer* init_buffer(uint* blk_starts);
|
|
|
|
// Write out basic block data to code buffer
|
|
void fill_buffer(CodeBuffer* cb, uint* blk_starts);
|
|
|
|
// Determine which variable sized branches can be shortened
|
|
void shorten_branches(uint* blk_starts, int& code_size, int& reloc_size, int& stub_size);
|
|
|
|
// Compute the size of first NumberOfLoopInstrToAlign instructions
|
|
// at the head of a loop.
|
|
void compute_loop_first_inst_sizes();
|
|
|
|
// Compute the information for the exception tables
|
|
void FillExceptionTables(uint cnt, uint *call_returns, uint *inct_starts, Label *blk_labels);
|
|
|
|
// Stack slots that may be unused by the calling convention but must
|
|
// otherwise be preserved. On Intel this includes the return address.
|
|
// On PowerPC it includes the 4 words holding the old TOC & LR glue.
|
|
uint in_preserve_stack_slots();
|
|
|
|
// "Top of Stack" slots that may be unused by the calling convention but must
|
|
// otherwise be preserved.
|
|
// On Intel these are not necessary and the value can be zero.
|
|
// On Sparc this describes the words reserved for storing a register window
|
|
// when an interrupt occurs.
|
|
static uint out_preserve_stack_slots();
|
|
|
|
// Number of outgoing stack slots killed above the out_preserve_stack_slots
|
|
// for calls to C. Supports the var-args backing area for register parms.
|
|
uint varargs_C_out_slots_killed() const;
|
|
|
|
// Number of Stack Slots consumed by a synchronization entry
|
|
int sync_stack_slots() const;
|
|
|
|
// Compute the name of old_SP. See <arch>.ad for frame layout.
|
|
OptoReg::Name compute_old_SP();
|
|
|
|
#ifdef ENABLE_ZAP_DEAD_LOCALS
|
|
static bool is_node_getting_a_safepoint(Node*);
|
|
void Insert_zap_nodes();
|
|
Node* call_zap_node(MachSafePointNode* n, int block_no);
|
|
#endif
|
|
|
|
private:
|
|
// Phase control:
|
|
void Init(int aliaslevel); // Prepare for a single compilation
|
|
int Inline_Warm(); // Find more inlining work.
|
|
void Finish_Warm(); // Give up on further inlines.
|
|
void Optimize(); // Given a graph, optimize it
|
|
void Code_Gen(); // Generate code from a graph
|
|
|
|
// Management of the AliasType table.
|
|
void grow_alias_types();
|
|
AliasCacheEntry* probe_alias_cache(const TypePtr* adr_type);
|
|
const TypePtr *flatten_alias_type(const TypePtr* adr_type) const;
|
|
AliasType* find_alias_type(const TypePtr* adr_type, bool no_create, ciField* field);
|
|
|
|
void verify_top(Node*) const PRODUCT_RETURN;
|
|
|
|
// Intrinsic setup.
|
|
void register_library_intrinsics(); // initializer
|
|
CallGenerator* make_vm_intrinsic(ciMethod* m, bool is_virtual); // constructor
|
|
int intrinsic_insertion_index(ciMethod* m, bool is_virtual); // helper
|
|
CallGenerator* find_intrinsic(ciMethod* m, bool is_virtual); // query fn
|
|
void register_intrinsic(CallGenerator* cg); // update fn
|
|
|
|
#ifndef PRODUCT
|
|
static juint _intrinsic_hist_count[vmIntrinsics::ID_LIMIT];
|
|
static jubyte _intrinsic_hist_flags[vmIntrinsics::ID_LIMIT];
|
|
#endif
|
|
// Function calls made by the public function final_graph_reshaping.
|
|
// No need to be made public as they are not called elsewhere.
|
|
void final_graph_reshaping_impl( Node *n, Final_Reshape_Counts &frc);
|
|
void final_graph_reshaping_walk( Node_Stack &nstack, Node *root, Final_Reshape_Counts &frc );
|
|
void eliminate_redundant_card_marks(Node* n);
|
|
|
|
public:
|
|
|
|
// Note: Histogram array size is about 1 Kb.
|
|
enum { // flag bits:
|
|
_intrinsic_worked = 1, // succeeded at least once
|
|
_intrinsic_failed = 2, // tried it but it failed
|
|
_intrinsic_disabled = 4, // was requested but disabled (e.g., -XX:-InlineUnsafeOps)
|
|
_intrinsic_virtual = 8, // was seen in the virtual form (rare)
|
|
_intrinsic_both = 16 // was seen in the non-virtual form (usual)
|
|
};
|
|
// Update histogram. Return boolean if this is a first-time occurrence.
|
|
static bool gather_intrinsic_statistics(vmIntrinsics::ID id,
|
|
bool is_virtual, int flags) PRODUCT_RETURN0;
|
|
static void print_intrinsic_statistics() PRODUCT_RETURN;
|
|
|
|
// Graph verification code
|
|
// Walk the node list, verifying that there is a one-to-one
|
|
// correspondence between Use-Def edges and Def-Use edges
|
|
// The option no_dead_code enables stronger checks that the
|
|
// graph is strongly connected from root in both directions.
|
|
void verify_graph_edges(bool no_dead_code = false) PRODUCT_RETURN;
|
|
|
|
// Verify GC barrier patterns
|
|
void verify_barriers() PRODUCT_RETURN;
|
|
|
|
// End-of-run dumps.
|
|
static void print_statistics() PRODUCT_RETURN;
|
|
|
|
// Dump formatted assembly
|
|
void dump_asm(int *pcs = NULL, uint pc_limit = 0) PRODUCT_RETURN;
|
|
void dump_pc(int *pcs, int pc_limit, Node *n);
|
|
|
|
// Verify ADLC assumptions during startup
|
|
static void adlc_verification() PRODUCT_RETURN;
|
|
|
|
// Definitions of pd methods
|
|
static void pd_compiler2_init();
|
|
|
|
// Auxiliary method for randomized fuzzing/stressing
|
|
static bool randomized_select(int count);
|
|
|
|
// enter a PreserveJVMState block
|
|
void inc_preserve_jvm_state() {
|
|
_preserve_jvm_state++;
|
|
}
|
|
|
|
// exit a PreserveJVMState block
|
|
void dec_preserve_jvm_state() {
|
|
_preserve_jvm_state--;
|
|
assert(_preserve_jvm_state >= 0, "_preserve_jvm_state shouldn't be negative");
|
|
}
|
|
|
|
bool has_preserve_jvm_state() const {
|
|
return _preserve_jvm_state > 0;
|
|
}
|
|
};
|
|
|
|
#endif // SHARE_VM_OPTO_COMPILE_HPP
|