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OMRNonHelperSymbols.enum
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OMRNonHelperSymbols.enum
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/*******************************************************************************
* Copyright (c) 2000, 2021 IBM Corp. and others
*
* This program and the accompanying materials are made available under
* the terms of the Eclipse Public License 2.0 which accompanies this
* distribution and is available at http://eclipse.org/legal/epl-2.0
* or the Apache License, Version 2.0 which accompanies this distribution
* and is available at https://www.apache.org/licenses/LICENSE-2.0.
*
* This Source Code may also be made available under the following Secondary
* Licenses when the conditions for such availability set forth in the
* Eclipse Public License, v. 2.0 are satisfied: GNU General Public License,
* version 2 with the GNU Classpath Exception [1] and GNU General Public
* License, version 2 with the OpenJDK Assembly Exception [2].
*
* [1] https://www.gnu.org/software/classpath/license.html
* [2] http://openjdk.java.net/legal/assembly-exception.html
*
* SPDX-License-Identifier: EPL-2.0 OR Apache-2.0 OR GPL-2.0 WITH Classpath-exception-2.0 OR LicenseRef-GPL-2.0 WITH Assembly-exception
*******************************************************************************/
/*
* This file will be included within an enum. Only comments, preprocessor macros,
* and enumerator definitions are permitted.
*/
arraySetSymbol,
arrayCopySymbol,
arrayCmpSymbol,
prefetchSymbol,
killsAllMethodSymbol, // A dummy method whose alias set includes all
usesAllMethodSymbol, // A dummy method whose use only alias set includes all
firstArrayShadowSymbol,
firstArrayletShadowSymbol = firstArrayShadowSymbol + TR::NumTypes,
firstCommonNonhelperNonArrayShadowSymbol = firstArrayletShadowSymbol + TR::NumTypes,
OMRfirstPrintableCommonNonhelperSymbol = firstCommonNonhelperNonArrayShadowSymbol,
contiguousArraySizeSymbol = firstCommonNonhelperNonArrayShadowSymbol,
discontiguousArraySizeSymbol,
arrayClassRomPtrSymbol,
javaLangClassFromClassSymbol,
classFromJavaLangClassSymbol,
addressOfClassOfMethodSymbol,
componentClassSymbol,
isArraySymbol,
isClassAndDepthFlagsSymbol,
isClassFlagsSymbol,
vftSymbol,
currentThreadSymbol,
recompilationCounterSymbol,
excpSymbol,
indexableSizeSymbol,
resolveCheckSymbol,
arrayTranslateSymbol,
arrayTranslateAndTestSymbol,
long2StringSymbol,
bitOpMemSymbol,
reverseLoadSymbol,
reverseStoreSymbol,
currentTimeMaxPrecisionSymbol,
headerFlagsSymbol,
singlePrecisionSQRTSymbol,
countForRecompileSymbol, // global boolean indicating when methods should start counting for guarded recompilations
gcrPatchPointSymbol, // address where we need to patch GCR guard instruction
counterAddressSymbol, // address of invokation counter for indirect loads and stores
startPCSymbol, // startPC of the compiled method
compiledMethodSymbol, // J9Method of the compiled method
thisRangeExtensionSymbol,
profilingBufferCursorSymbol,// profilingBufferCursor slot on j9vmthread
profilingBufferEndSymbol, // profilingBufferEnd slot on j9vmthread
profilingBufferSymbol, // profilingBuffer on j9vmthread
osrBufferSymbol, // osrBuffer slot on j9vmthread
osrScratchBufferSymbol, //osrScratchBuffer slot on j9vmthread
osrFrameIndexSymbol, // osrFrameIndex slot on j9vmthread
osrReturnAddressSymbol, // osrFrameIndex slot on j9vmthread
/** \brief
*
* A call with this symbol marks a place in the jitted code where OSR transition to the VM interpreter is supported.
* The transition target bytecode is the bytecode index on the call plus an induction offset which is stored on the
* call node.
*
* \code
* call <potentialOSRPointHelperSymbol>
* \endcode
*
* \note
* The call is not to be codegen evaluated, it should be cleaned up before codegen.
*/
potentialOSRPointHelperSymbol,
/** \brief
*
* A call with this symbol marks a place that has been optimized with runtime assumptions. Such place needs protection of OSR
* points. When the assumption becomes wrong, the execution of jitted code with the assumption has to be transition to the VM
* interpreter before running the invalid code.
*
* \code
* call <osrFearPointHelperSymbol>
* \endcode
*
* \note
* The call is not to be codegen evaluated, it should be cleaned up before codegen.
*/
osrFearPointHelperSymbol,
/** \brief
*
* A call with this symbol marks a place where we want/need escape analysis to add heapifications for any stack allocated
* objects. The primary use case is to force escape of all live local objects ahead of a throw to an OSR catch block
* but they may also be inserted to facilitate peeking of methods under HCR or other uses. Calls to this helper should
* only exist while escape analysis is running
*
* \code
* call <eaEscapeHelperSymbol>
* \endcode
*
* \note
* The call is not to be codegen evaluated, it should be cleaned up by postEscapeAnalysis.
*/
eaEscapeHelperSymbol,
instanceShapeSymbol,
instanceDescriptionSymbol,
descriptionWordFromPtrSymbol,
/** \brief Performs an equality comparison between two objects.
*
* The comparison takes two references to objects as arguments.
* It is up to users to define to define and implement the semantics of this operation.
*/
objectEqualityComparisonSymbol,
/** \brief
*
* This symbol is used by the code generator to recognize and inline a call which emulates the following
* tree sequence:
*
* \code
* monent
* object
* ...
* aloadi / iloadi / lloadi
* ==>object
* ...
* monexitfence
* monexit
* ==>object
* \endcode
*
* Where <c>object</c> is a valid object reference. The sequence represents a field load within a
* synchronized region. Since a full monent / monexit operation for a single load is expensive, some code
* generators can emit an optimized instruction sequence to load the field atomically while conforming
* to the monent / monexit semantics.
*/
synchronizedFieldLoadSymbol,
/** \brief
*
* This symbol represents an intrinsic call of the following format:
*
* \code
* icall/lcall <atomicAddSymbol>
* <address>
* <value>
* \endcode
*
* Which performs the following operation atomically:
*
* \code
* [address] = [address] + <value>
* return <value>
* \endcode
*
* The data type of \c <value> indicates the width of the operation.
*/
atomicAddSymbol,
/** \brief
*
* This symbol represents an intrinsic call of the following format:
*
* \code
* icall/lcall <atomicFetchAndAddSymbol>
* <address>
* <value>
* \endcode
*
* Which performs the following operation atomically:
*
* \code
* temp = [address]
* [address] = [address] + <value>
* return temp
* \endcode
*
* The data type of \c <value> indicates the width of the operation.
*/
atomicFetchAndAddSymbol,
atomicFetchAndAdd32BitSymbol,
atomicFetchAndAdd64BitSymbol,
/** \brief
*
* This symbol represents an intrinsic call of the following format:
*
* \code
* icall/lcall <atomicSwapSymbol>
* <address>
* <value>
* \endcode
*
* Which performs the following operation atomically:
*
* \code
* temp = [address]
* [address] = <value>
* return temp
* \endcode
*
* The data type of \c <value> indicates the width of the operation.
*/
atomicSwapSymbol,
atomicSwap32BitSymbol,
atomicSwap64BitSymbol,
/** \brief
*
* This symbol represents an intrinsic call of the following format:
*
* \code
* icall <atomicCompareAndSwapReturnStatusSymbol>
* <address>
* <old value>
* <new value>
* \endcode
*
* Which performs the following operation atomically:
*
* \code
* temp = [address]
* if (temp == <old value>)
* [address] = <new value>
* return true
* else
* return false
* \endcode
*
* The data type of \c <old value> indicates the width of the operation.
*/
atomicCompareAndSwapReturnStatusSymbol,
/** \brief
*
* This symbol represents an intrinsic call of the following format:
*
* \code
* icall/lcall <atomicCompareAndSwapReturnValueSymbol>
* <address>
* <old value>
* <new value>
* \endcode
*
* Which performs the following operation atomically:
*
* \code
* temp = [address]
* if (temp == <old value>)
* [address] = <new value>
* return temp
* \endcode
*
* The data type of \c <old value> indicates the width of the operation.
*/
atomicCompareAndSwapReturnValueSymbol,
/** \brief
*
* These symbols represent placeholder calls for profiling value which will be lowered into trees later.
*
* \code
* call <jProfileValue/jProfileValueWithNullCHK>
* <value to be profiled>
* <table address>
* \endcode
*/
jProfileValueSymbol,
jProfileValueWithNullCHKSymbol,
OMRlastPrintableCommonNonhelperSymbol = jProfileValueWithNullCHKSymbol,
firstPerCodeCacheHelperSymbol,
lastPerCodeCacheHelperSymbol = firstPerCodeCacheHelperSymbol + TR_numCCPreLoadedCode - 1,