/
OMRIlBuilder.cpp
2801 lines (2425 loc) · 103 KB
/
OMRIlBuilder.cpp
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/*******************************************************************************
* Copyright (c) 2000, 2018 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
*******************************************************************************/
#include "env/TRMemory.hpp" // must precede IlBuilder.hpp to get TR_ALLOC
#include "ilgen/IlBuilder.hpp"
#include <stdint.h>
#include <stdarg.h>
#include <string.h>
#include "codegen/CodeGenerator.hpp"
#include "compile/Compilation.hpp"
#include "compile/Method.hpp"
#include "compile/SymbolReferenceTable.hpp"
#include "control/Recompilation.hpp"
#include "env/CompilerEnv.hpp"
#include "env/FrontEnd.hpp"
#include "il/Block.hpp"
#include "il/SymbolReference.hpp"
#include "il/ILOps.hpp"
#include "il/Node.hpp"
#include "il/Node_inlines.hpp"
#include "il/TreeTop.hpp"
#include "il/TreeTop_inlines.hpp"
#include "il/symbol/AutomaticSymbol.hpp"
#include "ilgen/IlGeneratorMethodDetails_inlines.hpp"
#include "ilgen/TypeDictionary.hpp"
#include "ilgen/IlInjector.hpp"
#include "ilgen/MethodBuilder.hpp"
#include "ilgen/BytecodeBuilder.hpp"
#include "ilgen/VectorLoopBuilder.hpp"
#include "infra/Cfg.hpp"
#include "infra/List.hpp"
#define OPT_DETAILS "O^O ILBLD: "
#define TraceEnabled (comp()->getOption(TR_TraceILGen))
#define TraceIL(m, ...) {if (TraceEnabled) {traceMsg(comp(), m, ##__VA_ARGS__);}}
// IlBuilder is a class designed to help build Testarossa IL quickly without
// a lot of knowledge of the intricacies of commoned references, symbols,
// symbol references, or blocks. You can add operations to an IlBuilder via
// a set of services, for example: Add, Sub, Load, Store. These services
// operate on TR::IlValues, which currently correspond to SymbolReferences.
// However, IlBuilders also incorporate a notion of "symbols" that are
// identified by strings (i.e. arbitrary symbolic names).
//
// So Load("a") returns a TR::IlValue. Load("b") returns a different
// TR::IlValue. The value of a+b can be computed by Add(Load("a"),Load("b")),
// and that value can be stored into c by Store("c", Add(Load("a"),Load("b"))).
//
// More complicated services exist to construct control flow by linking
// together sets of IlBuilder objects. A simple if-then construct, for
// example, can be built with the following code:
// TR::IlValue *condition = NotEqualToZero(Load("a"));
// TR::IlBuilder *then = NULL;
// IfThen(&then, condition);
// then->Return(then->ConstInt32(0));
//
//
// An IlBuilder is really a sequence of Blocks and other IlBuilders, but an
// IlBuilder is also a sequence of TreeTops connecting together a set of
// Blocks that are arranged in the CFG. Another way to think of an IlBuilder
// is as representing the code needed to execute a particular code path
// (which may itself have sub control flow handled by embedded IlBuilders).
// All IlBuilders exist within the single control flow graph, but the full
// control flow graph will not be connected together until all IlBuilder
// objects have had injectIL() called.
OMR::IlBuilder::IlBuilder(TR::IlBuilder *source)
: TR::IlInjector(source),
_methodBuilder(source->_methodBuilder),
_sequence(0),
_sequenceAppender(0),
_entryBlock(0),
_exitBlock(0),
_count(-1),
_partOfSequence(false),
_connectedTrees(false),
_comesBack(true)
{
}
bool
OMR::IlBuilder::TraceEnabled_log(){
bool traceEnabled = _comp->getOption(TR_TraceILGen);
return traceEnabled;
}
void
OMR::IlBuilder::TraceIL_log(const char* s, ...){
va_list argp;
va_start (argp, s);
traceMsgVarArgs(_comp, s, argp);
va_end(argp);
}
void
OMR::IlBuilder::initSequence()
{
_sequence = new (_comp->trMemory()->trHeapMemory()) List<SequenceEntry>(_comp->trMemory());
_sequenceAppender = new (_comp->trMemory()->trHeapMemory()) ListAppender<SequenceEntry>(_sequence);
}
bool
OMR::IlBuilder::injectIL()
{
TraceIL("Inside injectIL()\n");
TraceIL("original entry %p\n", cfg()->getStart());
TraceIL("original exit %p\n", cfg()->getEnd());
setupForBuildIL();
bool rc = buildIL();
TraceIL("buildIL() returned %d\n", rc);
if (!rc)
return false;
rc = connectTrees();
if (TraceEnabled)
comp()->dumpMethodTrees("after connectTrees");
cfg()->removeUnreachableBlocks();
if (TraceEnabled)
comp()->dumpMethodTrees("after removing unreachable blocks");
return rc;
}
void
OMR::IlBuilder::setupForBuildIL()
{
initSequence();
appendBlock(NULL, false);
_entryBlock = _currentBlock;
_exitBlock = emptyBlock();
}
void
OMR::IlBuilder::print(const char *title, bool recurse)
{
if (!TraceEnabled)
return;
if (title != NULL)
TraceIL("[ %p ] %s\n", this, title);
TraceIL("[ %p ] _methodBuilder %p\n", this, _methodBuilder);
TraceIL("[ %p ] _entryBlock %p\n", this, _entryBlock);
TraceIL("[ %p ] _exitBlock %p\n", this, _exitBlock);
TraceIL("[ %p ] _connectedBlocks %d\n", this, _connectedTrees);
TraceIL("[ %p ] _comesBack %d\n", this, _comesBack);
TraceIL("[ %p ] Sequence:\n", this);
ListIterator<SequenceEntry> iter(_sequence);
for (SequenceEntry *entry = iter.getFirst(); !iter.atEnd(); entry = iter.getNext())
{
if (entry->_isBlock)
{
printBlock(entry->_block);
}
else
{
if (recurse)
{
TraceIL("[ %p ] Inner builder %p", this, entry->_builder);
entry->_builder->print(NULL, recurse);
}
else
{
TraceIL("[ %p ] Builder %p\n", this, entry->_builder);
}
}
}
}
void
OMR::IlBuilder::printBlock(TR::Block *block)
{
if (!TraceEnabled)
return;
TraceIL("[ %p ] Block %p\n", this, block);
TR::TreeTop *tt = block->getEntry();
while (tt != block->getExit())
{
comp()->getDebug()->print(comp()->getOutFile(), tt);
tt = tt->getNextTreeTop();
}
comp()->getDebug()->print(comp()->getOutFile(), tt);
}
TR::SymbolReference *
OMR::IlBuilder::lookupSymbol(const char *name)
{
TR_ASSERT(_methodBuilder, "cannot look up symbols in an IlBuilder that has no MethodBuilder");
return _methodBuilder->lookupSymbol(name);
}
void
OMR::IlBuilder::defineSymbol(const char *name, TR::SymbolReference *symRef)
{
TR_ASSERT(_methodBuilder, "cannot define symbols in an IlBuilder that has no MethodBuilder");
_methodBuilder->defineSymbol(name, symRef);
}
void
OMR::IlBuilder::defineValue(const char *name, TR::IlType *type)
{
TR::DataType dt = type->getPrimitiveType();
TR::SymbolReference *newSymRef = symRefTab()->createTemporary(methodSymbol(), dt);
newSymRef->getSymbol()->setNotCollected();
defineSymbol(name, newSymRef);
}
TR::IlValue *
OMR::IlBuilder::newValue(TR::DataType dt, TR::Node *n)
{
// make sure TreeTop is well formed
TR::Node *ttNode = n;
if (!ttNode->getOpCode().isTreeTop())
ttNode = TR::Node::create(TR::treetop, 1, n);
TR::TreeTop *tt = TR::TreeTop::create(_comp, ttNode);
_currentBlock->append(tt);
TR::IlValue *value = new (_comp->trHeapMemory()) TR::IlValue(n, tt, _currentBlock, _methodBuilder);
return value;
}
TR::IlValue *
OMR::IlBuilder::newValue(TR::IlType *dt, TR::Node *n)
{
return newValue(dt->getPrimitiveType(), n);
}
TR::IlValue *
OMR::IlBuilder::NewValue(TR::IlType *dt)
{
TR_ASSERT_FATAL(0, "should not create a value without a TR::Node");
}
TR::IlValue *
OMR::IlBuilder::Copy(TR::IlValue *value)
{
TR::DataType dt = value->getDataType();
TR::SymbolReference *newSymRef = symRefTab()->createTemporary(_methodSymbol, dt);
char *name = (char *) _comp->trMemory()->allocateHeapMemory((2+10+1) * sizeof(char)); // 2 ("_T") + max 10 digits + trailing zero
sprintf(name, "_T%u", newSymRef->getCPIndex());
newSymRef->getSymbol()->getAutoSymbol()->setName(name);
newSymRef->getSymbol()->setNotCollected();
_methodBuilder->defineSymbol(name, newSymRef);
storeToTemp(newSymRef, loadValue(value));
TR::IlValue *newVal = newValue(newSymRef->getSymbol()->getDataType(), loadTemp(newSymRef));
TraceIL("IlBuilder[ %p ]::Copy value (%d) dataType (%d) to newVal (%d) at cpIndex (%d)\n", this, value->getID(), dt, newVal->getID(), newSymRef->getCPIndex());
return newVal;
}
TR::TreeTop *
OMR::IlBuilder::getFirstTree()
{
TR_ASSERT(_blocks, "_blocks not created yet");
TR_ASSERT(_blocks[0], "_blocks[0] not created yet");
return _blocks[0]->getEntry();
}
TR::TreeTop *
OMR::IlBuilder::getLastTree()
{
TR_ASSERT(_blocks, "_blocks not created yet");
TR_ASSERT(_blocks[_numBlocks], "_blocks[0] not created yet");
return _blocks[_numBlocks]->getExit();
}
uint32_t
OMR::IlBuilder::countBlocks()
{
// only count each block once
if (_count > -1)
return _count;
TraceIL("[ %p ] TR::IlBuilder::countBlocks 0 at entry\n", this);
_count = 0; // prevent recursive counting; will be updated to real value before returning
uint32_t count=0;
ListIterator<SequenceEntry> iter(_sequence);
for (SequenceEntry *entry = iter.getFirst(); !iter.atEnd(); entry = iter.getNext())
{
if (entry->_isBlock)
count++;
else
count += entry->_builder->countBlocks();
}
if (this != _methodBuilder || _methodBuilder->callerMethodBuilder() != NULL)
{
// exit block isn't in the sequence except for method builders
// gets tacked in late by connectTrees
count++;
}
TraceIL("[ %p ] TR::IlBuilder::countBlocks %d\n", this, count);
_count = count;
return count;
}
void
OMR::IlBuilder::pullInBuilderTrees(TR::IlBuilder *builder,
uint32_t *currentBlock,
TR::TreeTop **firstTree,
TR::TreeTop **newLastTree)
{
TraceIL("\n[ %p ] Calling connectTrees on inner builder %p\n", this, builder);
builder->connectTrees();
TraceIL("\n[ %p ] Returned from connectTrees on %p\n", this, builder);
TR::Block **innerBlocks = builder->blocks();
uint32_t innerNumBlocks = builder->numBlocks();
uint32_t copyBlock = *currentBlock;
for (uint32_t i=0;i < innerNumBlocks;i++, copyBlock++)
{
if (TraceEnabled)
{
TraceIL("[ %p ] copying inner block B%d to B%d\n", this, i, copyBlock);
printBlock(innerBlocks[i]);
}
_blocks[copyBlock] = innerBlocks[i];
}
*currentBlock += innerNumBlocks;
*firstTree = innerBlocks[0]->getEntry();
*newLastTree = innerBlocks[innerNumBlocks-1]->getExit();
}
bool
OMR::IlBuilder::connectTrees()
{
// don't do this more than once per builder object
if (_connectedTrees)
return true;
_connectedTrees = true;
TraceIL("[ %p ] TR::IlBuilder::connectTrees():\n", this);
// figure out how many blocks we need
uint32_t numBlocks = countBlocks();
TraceIL("[ %p ] Total %d blocks\n", this, numBlocks);
allocateBlocks(numBlocks);
TraceIL("[ %p ] Allocated _blocks %p\n", this, _blocks);
// now add all the blocks from the sequence into the _blocks array
// and connect the trees into a single sequence
uint32_t currentBlock = 0;
TR::Block **blocks = _blocks;
TR::TreeTop *lastTree = NULL;
TraceIL("[ %p ] Connecting trees one entry at a time:\n", this);
ListIterator<SequenceEntry> iter(_sequence);
for (SequenceEntry *entry = iter.getFirst(); !iter.atEnd(); entry = iter.getNext())
{
TraceIL("[ %p ] currentBlock = %d\n", this, currentBlock);
TraceIL("[ %p ] lastTree = %p\n", this, lastTree);
TR::TreeTop *firstTree = NULL;
TR::TreeTop *newLastTree = NULL;
if (entry->_isBlock)
{
if (TraceEnabled)
{
TraceIL("[ %p ] Block entry %p becomes block B%d\n", this, entry->_block, currentBlock);
printBlock(entry->_block);
}
blocks[currentBlock++] = entry->_block;
firstTree = entry->_block->getEntry();
newLastTree = entry->_block->getExit();
}
else
{
TR::IlBuilder *builder = entry->_builder;
pullInBuilderTrees(builder, ¤tBlock, &firstTree, &newLastTree);
}
TraceIL("[ %p ] First tree is %p [ node %p ]\n", this, firstTree, firstTree->getNode());
TraceIL("[ %p ] Last tree will be %p [ node %p ]\n", this, newLastTree, newLastTree->getNode());
// connect the trees
if (lastTree)
{
TraceIL("[ %p ] Connecting tree %p [ node %p ] to new tree %p [ node %p ]\n", this, lastTree, lastTree->getNode(), firstTree, firstTree->getNode());
lastTree->join(firstTree);
}
lastTree = newLastTree;
}
if (_methodBuilder != this || _methodBuilder->callerMethodBuilder() != NULL)
{
// non-method builders need to append the "EXIT" block trees
// (method builders have EXIT as the special block 1)
TraceIL("[ %p ] Connecting last tree %p [ node %p ] to exit block entry %p [ node %p ]\n", this, lastTree, lastTree->getNode(), _exitBlock->getEntry(), _exitBlock->getEntry()->getNode());
lastTree->join(_exitBlock->getEntry());
// also add exit block to blocks array and add an edge from last block to EXIT if the builder comes back (i.e. doesn't return or branch off somewhere)
if (comesBack())
cfg()->addEdge(blocks[currentBlock-1], getExit());
blocks[currentBlock++] = _exitBlock;
TraceIL("[ %p ] exit block %d is %p (%p -> %p)\n", this, _exitBlock->getNumber(), _exitBlock->getEntry(), _exitBlock->getExit());
lastTree = _exitBlock->getExit();
_numBlocks = currentBlock;
}
TraceIL("[ %p ] last tree %p [ node %p ]\n", this, lastTree, lastTree->getNode());
lastTree->setNextTreeTop(NULL);
TraceIL("[ %p ] blocks[%d] exit tree is %p\n", this, currentBlock-1, blocks[currentBlock-1]->getExit());
return true;
}
TR::Node *
OMR::IlBuilder::zero(TR::DataType dt)
{
switch (dt)
{
case TR::Int8 : return TR::Node::bconst(0);
case TR::Int16 : return TR::Node::sconst(0);
case TR::Int32 : return TR::Node::iconst(0);
case TR::Int64 : return TR::Node::lconst(0);
default : return TR::Node::create(TR::ILOpCode::constOpCode(dt), 0, 0);
}
TR_ASSERT(0, "should not reach here");
}
TR::Node *
OMR::IlBuilder::zero(TR::IlType *dt)
{
return zero(dt->getPrimitiveType());
}
TR::Node *
OMR::IlBuilder::zeroNodeForValue(TR::IlValue *v)
{
return zero(v->getDataType());
}
TR::IlValue *
OMR::IlBuilder::zeroForValue(TR::IlValue *v)
{
TR::IlValue *returnValue = newValue(v->getDataType(), zeroNodeForValue(v));
return returnValue;
}
TR::IlBuilder *
OMR::IlBuilder::OrphanBuilder()
{
TR::IlBuilder *orphan = new (comp()->trHeapMemory()) TR::IlBuilder(_methodBuilder, _types);
orphan->initialize(_details, _methodSymbol, _fe, _symRefTab);
orphan->setupForBuildIL();
return orphan;
}
TR::VectorLoopBuilder *
OMR::IlBuilder::orphanVectorLoopBuilder(TR::IlType *vectorElementType)
{
TR::VectorLoopBuilder *orphan = new (comp()->trHeapMemory()) TR::VectorLoopBuilder(comp(), _methodBuilder, _types, vectorElementType);
orphan->initialize(_details, _methodSymbol, _fe, _symRefTab);
orphan->setupForBuildIL();
return orphan;
}
TR::Block *
OMR::IlBuilder::emptyBlock()
{
TR::Block *empty = TR::Block::createEmptyBlock(NULL, _comp);
cfg()->addNode(empty);
return empty;
}
TR::IlBuilder *
OMR::IlBuilder::createBuilderIfNeeded(TR::IlBuilder *builder)
{
if (builder == NULL)
builder = OrphanBuilder();
return builder;
}
OMR::IlBuilder::SequenceEntry *
OMR::IlBuilder::blockEntry(TR::Block *block)
{
return new (_comp->trMemory()->trHeapMemory()) IlBuilder::SequenceEntry(block);
}
OMR::IlBuilder::SequenceEntry *
OMR::IlBuilder::builderEntry(TR::IlBuilder *builder)
{
return new (_comp->trMemory()->trHeapMemory()) IlBuilder::SequenceEntry(builder);
}
void
OMR::IlBuilder::appendBlock(TR::Block *newBlock, bool addEdge)
{
if (newBlock == NULL)
{
newBlock = emptyBlock();
}
_sequenceAppender->add(blockEntry(newBlock));
if (_currentBlock && addEdge)
{
// if current block does not fall through to new block, use appendNoFallThroughBlock() rather than appendBlock()
cfg()->addEdge(_currentBlock, newBlock);
}
// subsequent IL should generate to appended block
_currentBlock = newBlock;
}
void
OMR::IlBuilder::AppendBuilder(TR::IlBuilder *builder)
{
TR_ASSERT(builder->_partOfSequence == false, "builder cannot be in two places");
builder->_partOfSequence = true;
_sequenceAppender->add(builderEntry(builder));
if (_currentBlock != NULL)
{
cfg()->addEdge(_currentBlock, builder->getEntry());
_currentBlock = NULL;
}
TraceIL("IlBuilder[ %p ]::AppendBuilder %p\n", this, builder);
// when trees are connected, exit block will swing down to become last trees in builder, so it can fall through to this block we're about to create
// need to add edge explicitly because of this exit block sleight of hand
appendNoFallThroughBlock();
cfg()->addEdge(builder->getExit(), _currentBlock);
}
TR::Node *
OMR::IlBuilder::loadValue(TR::IlValue *v)
{
return v->load(_currentBlock);
}
void
OMR::IlBuilder::storeNode(TR::SymbolReference *symRef, TR::Node *v)
{
genTreeTop(TR::Node::createStore(symRef, v));
}
void
OMR::IlBuilder::indirectStoreNode(TR::Node *addr, TR::Node *v)
{
TR::DataType dt = v->getDataType();
TR::SymbolReference *storeSymRef = symRefTab()->findOrCreateArrayShadowSymbolRef(dt, addr);
TR::ILOpCodes storeOp = comp()->il.opCodeForIndirectArrayStore(dt);
genTreeTop(TR::Node::createWithSymRef(storeOp, 2, addr, v, 0, storeSymRef));
}
TR::IlValue *
OMR::IlBuilder::indirectLoadNode(TR::IlType *dt, TR::Node *addr, bool isVectorLoad)
{
TR_ASSERT(dt->isPointer(), "indirectLoadNode must apply to pointer type");
TR::IlType * baseType = dt->baseType();
TR::DataType primType = baseType->getPrimitiveType();
TR_ASSERT(primType != TR::NoType, "Dereferencing an untyped pointer.");
TR::DataType symRefType = primType;
if (isVectorLoad)
symRefType = symRefType.scalarToVector();
TR::SymbolReference *storeSymRef = symRefTab()->findOrCreateArrayShadowSymbolRef(symRefType, addr);
TR::ILOpCodes loadOp = comp()->il.opCodeForIndirectArrayLoad(primType);
if (isVectorLoad)
{
loadOp = TR::ILOpCode::convertScalarToVector(loadOp);
baseType = _types->PrimitiveType(symRefType);
}
TR::Node *loadNode = TR::Node::createWithSymRef(loadOp, 1, 1, addr, storeSymRef);
TR::IlValue *loadValue = newValue(baseType, loadNode);
return loadValue;
}
/**
* @brief Store an IlValue into a named local variable
* @param varName the name of the local variable to be stored into. If the name has not been used before, this local variable will
* take the same data type as the value being written to it.
* @param value IlValue that should be written to the local variable, which should be the same data type
*/
void
OMR::IlBuilder::Store(const char *varName, TR::IlValue *value)
{
if (!_methodBuilder->symbolDefined(varName))
_methodBuilder->defineValue(varName, _types->PrimitiveType(value->getDataType()));
TR::SymbolReference *symRef = lookupSymbol(varName);
TraceIL("IlBuilder[ %p ]::Store %s %d (%d) gets %d\n", this, varName, symRef->getCPIndex(), symRef->getReferenceNumber(), value->getID());
storeNode(symRef, loadValue(value));
}
/**
* @brief Store an IlValue into the same local value as another IlValue
* @param dest IlValue that should now hold the same value as "value"
* @param value IlValue that should overwrite "dest"
*/
void
OMR::IlBuilder::StoreOver(TR::IlValue *dest, TR::IlValue *value)
{
dest->storeOver(value, _currentBlock);
}
/**
* @brief Store a vector IlValue into a named local variable
* @param varName the name of the local variable to be vector stored into. if the name has not been used before, this local variable will
* take the same data type as the value being written to it. The width of this data will be determined by the vector
* data type of IlValue.
* @param value IlValue with the vector data that should be written to the local variable, and should have the same data type
*/
void
OMR::IlBuilder::VectorStore(const char *varName, TR::IlValue *value)
{
TR::Node *valueNode = loadValue(value);
TR::DataType dt = valueNode->getDataType();
if (!dt.isVector())
{
valueNode = TR::Node::create(TR::vsplats, 1, valueNode);
dt = dt.scalarToVector();
}
if (!_methodBuilder->symbolDefined(varName))
_methodBuilder->defineValue(varName, _types->PrimitiveType(dt));
TR::SymbolReference *symRef = lookupSymbol(varName);
TraceIL("IlBuilder[ %p ]::VectorStore %s %d gets %d\n", this, varName, symRef->getCPIndex(), value->getID());
storeNode(symRef, valueNode);
}
void
OMR::IlBuilder::ArrayStore(TR::IlType *dt, TR::IlValue *base, TR::IlValue *index, TR::IlValue *value)
{
StoreAt(
IndexAt(dt, base, index),
value);
}
void
OMR::IlBuilder::VectorArrayStore(TR::IlType *dt, TR::IlValue *base, TR::IlValue *index, TR::IlValue *value)
{
VectorStoreAt(
IndexAt(dt, base, index),
value);
}
/**
* @brief Store an IlValue through a pointer
* @param address the pointer address through which the value will be written
* @param value IlValue that should be written at "address"
*/
void
OMR::IlBuilder::StoreAt(TR::IlValue *address, TR::IlValue *value)
{
TR_ASSERT(address->getDataType() == TR::Address, "StoreAt needs an address operand");
TraceIL("IlBuilder[ %p ]::StoreAt address %d gets %d\n", this, address->getID(), value->getID());
indirectStoreNode(loadValue(address), loadValue(value));
}
/**
* @brief Store a vector IlValue through a pointer
* @param address the pointer address through which the vector value will be written. The width of the store will be determined
* by the vector data type of IlValue.
* @param value IlValue with the vector data that should be written at "address"
*/
void
OMR::IlBuilder::VectorStoreAt(TR::IlValue *address, TR::IlValue *value)
{
TR_ASSERT(address->getDataType() == TR::Address, "VectorStoreAt needs an address operand");
TraceIL("IlBuilder[ %p ]::VectorStoreAt address %d gets %d\n", this, address->getID(), value->getID());
TR::Node *valueNode = loadValue(value);
if (!valueNode->getDataType().isVector())
valueNode = TR::Node::create(TR::vsplats, 1, valueNode);
indirectStoreNode(loadValue(address), valueNode);
}
TR::IlValue *
OMR::IlBuilder::CreateLocalArray(int32_t numElements, TR::IlType *elementType)
{
uint32_t size = numElements * elementType->getSize();
TR::SymbolReference *localArraySymRef = symRefTab()->createLocalPrimArray(size,
methodSymbol(),
8 /*FIXME: JVM-specific - byte*/);
char *name = (char *) _comp->trMemory()->allocateHeapMemory((2+10+1) * sizeof(char)); // 2 ("_T") + max 10 digits + trailing zero
sprintf(name, "_T%u", localArraySymRef->getCPIndex());
localArraySymRef->getSymbol()->getAutoSymbol()->setName(name);
localArraySymRef->setStackAllocatedArrayAccess();
_methodBuilder->defineSymbol(name, localArraySymRef);
TR::Node *arrayAddress = TR::Node::createWithSymRef(TR::loadaddr, 0, localArraySymRef);
TR::IlValue *arrayAddressValue = newValue(TR::Address, arrayAddress);
TraceIL("IlBuilder[ %p ]::CreateLocalArray array allocated %d bytes, address in %d\n", this, size, arrayAddressValue->getID());
return arrayAddressValue;
}
TR::IlValue *
OMR::IlBuilder::CreateLocalStruct(TR::IlType *structType)
{
//similar to CreateLocalArray except writing a method in StructType to get the struct size
uint32_t size = structType->getSize();
TR::SymbolReference *localStructSymRef = symRefTab()->createLocalPrimArray(size,
methodSymbol(),
8 /*FIXME: JVM-specific - byte*/);
char *name = (char *) _comp->trMemory()->allocateHeapMemory((2+10+1) * sizeof(char)); // 2 ("_T") + max 10 digits + trailing zero
sprintf(name, "_T%u", localStructSymRef->getCPIndex());
localStructSymRef->getSymbol()->getAutoSymbol()->setName(name);
localStructSymRef->setStackAllocatedArrayAccess();
_methodBuilder->defineSymbol(name, localStructSymRef);
TR::Node *structAddress = TR::Node::createWithSymRef(TR::loadaddr, 0, localStructSymRef);
TR::IlValue *structAddressValue = newValue(TR::Address, structAddress);
TraceIL("IlBuilder[ %p ]::CreateLocalStruct struct allocated %d bytes, address in %d\n", this, size, structAddressValue->getID());
return structAddressValue;
}
void
OMR::IlBuilder::StoreIndirect(const char *type, const char *field, TR::IlValue *object, TR::IlValue *value)
{
TR::SymbolReference *symRef = (TR::SymbolReference*)_types->FieldReference(type, field);
TR::DataType fieldType = symRef->getSymbol()->getDataType();
TraceIL("IlBuilder[ %p ]::StoreIndirect %s.%s (%d) into (%d)\n", this, type, field, value->getID(), object->getID());
TR::ILOpCodes storeOp = comp()->il.opCodeForIndirectStore(fieldType);
genTreeTop(TR::Node::createWithSymRef(storeOp, 2, loadValue(object), loadValue(value), 0, symRef));
}
TR::IlValue *
OMR::IlBuilder::Load(const char *name)
{
TR::SymbolReference *symRef = lookupSymbol(name);
TR::Node *valueNode = TR::Node::createLoad(symRef);
TR::IlValue *returnValue = newValue(symRef->getSymbol()->getDataType(), valueNode);
TraceIL("IlBuilder[ %p ]::Load %s into %d from symref %d\n", this, name, returnValue->getID(), symRef->getReferenceNumber());
return returnValue;
}
TR::IlValue *
OMR::IlBuilder::VectorLoad(const char *name)
{
TR::SymbolReference *nameSymRef = lookupSymbol(name);
TR::DataType returnType = nameSymRef->getSymbol()->getDataType();
TR_ASSERT(returnType.isVector(), "VectorLoad must load symbol with a vector type");
TR::Node *loadNode = TR::Node::createWithSymRef(0, TR::comp()->il.opCodeForDirectLoad(returnType), 0, nameSymRef);
TR::IlValue *returnValue = newValue(returnType, loadNode);
TraceIL("IlBuilder[ %p ]::%d is VectorLoad %s (%d)\n", this, returnValue->getID(), name, nameSymRef->getCPIndex());
return returnValue;
}
TR::IlValue *
OMR::IlBuilder::LoadIndirect(const char *type, const char *field, TR::IlValue *object)
{
TR::SymbolReference *symRef = (TR::SymbolReference *)_types->FieldReference(type, field);
TR::DataType fieldType = symRef->getSymbol()->getDataType();
TR::IlValue *returnValue = newValue(fieldType, TR::Node::createWithSymRef(comp()->il.opCodeForIndirectLoad(fieldType), 1, loadValue(object), 0, symRef));
TraceIL("IlBuilder[ %p ]::%d is LoadIndirect %s.%s from (%d)\n", this, returnValue->getID(), type, field, object->getID());
return returnValue;
}
TR::IlValue *
OMR::IlBuilder::ArrayLoad(TR::IlType *dt, TR::IlValue *base, TR::IlValue *index)
{
return LoadAt(dt,
IndexAt(dt, base, index));
}
TR::IlValue *
OMR::IlBuilder::VectorArrayLoad(TR::IlType *dt, TR::IlValue *base, TR::IlValue *index)
{
return VectorLoadAt(dt,
IndexAt(dt, base, index));
}
TR::IlValue *
OMR::IlBuilder::LoadAt(TR::IlType *dt, TR::IlValue *address)
{
TR_ASSERT(address->getDataType() == TR::Address, "LoadAt needs an address operand");
TR::IlValue *returnValue = indirectLoadNode(dt, loadValue(address));
TraceIL("IlBuilder[ %p ]::%d is LoadAt type %d address %d\n", this, returnValue->getID(), dt->getPrimitiveType(), address->getID());
return returnValue;
}
TR::IlValue *
OMR::IlBuilder::VectorLoadAt(TR::IlType *dt, TR::IlValue *address)
{
TR_ASSERT(address->getDataType() == TR::Address, "LoadAt needs an address operand");
TR::IlValue *returnValue = indirectLoadNode(dt, loadValue(address), true);
TraceIL("IlBuilder[ %p ]::%d is VectorLoadAt type %d address %d\n", this, returnValue->getID(), dt->getPrimitiveType(), address->getID());
return returnValue;
}
TR::IlValue *
OMR::IlBuilder::IndexAt(TR::IlType *dt, TR::IlValue *base, TR::IlValue *index)
{
TR::IlType *elemType = dt->baseType();
TR_ASSERT(base->getDataType() == TR::Address, "IndexAt must be called with a pointer base");
TR_ASSERT(elemType != NULL, "IndexAt should be called with pointer type");
TR_ASSERT(elemType->getPrimitiveType() != TR::NoType, "Cannot use IndexAt with pointer to NoType.");
TR::Node *baseNode = loadValue(base);
TR::Node *indexNode = loadValue(index);
TR::Node *elemSizeNode;
TR::ILOpCodes addOp, mulOp;
TR::DataType indexType = indexNode->getDataType();
if (TR::Compiler->target.is64Bit())
{
if (indexType != TR::Int64)
{
TR::ILOpCodes op = TR::DataType::getDataTypeConversion(indexType, TR::Int64);
indexNode = TR::Node::create(op, 1, indexNode);
}
elemSizeNode = TR::Node::lconst(elemType->getSize());
addOp = TR::aladd;
mulOp = TR::lmul;
}
else
{
TR::DataType targetType = TR::Int32;
if (indexType != targetType)
{
TR::ILOpCodes op = TR::DataType::getDataTypeConversion(indexType, targetType);
indexNode = TR::Node::create(op, 1, indexNode);
}
elemSizeNode = TR::Node::iconst(elemType->getSize());
addOp = TR::aiadd;
mulOp = TR::imul;
}
TR::Node *offsetNode = TR::Node::create(mulOp, 2, indexNode, elemSizeNode);
TR::Node *addrNode = TR::Node::create(addOp, 2, baseNode, offsetNode);
TR::IlValue *address = newValue(Address, addrNode);
TraceIL("IlBuilder[ %p ]::%d is IndexAt(%s) base %d index %d\n", this, address->getID(), dt->getName(), base->getID(), index->getID());
return address;
}
/**
* @brief Generate IL to load the address of a struct field.
*
* The address of the field is calculated by adding the field's offset to the
* base address of the struct. The address is also converted (type casted) to
* a pointer to the type of the field.
*/
TR::IlValue *
OMR::IlBuilder::StructFieldInstanceAddress(const char* structName, const char* fieldName, TR::IlValue* obj) {
auto offset = typeDictionary()->OffsetOf(structName, fieldName);
auto ptype = typeDictionary()->PointerTo(typeDictionary()->GetFieldType(structName, fieldName));
TR::IlValue* offsetValue = NULL;
if (TR::Compiler->target.is64Bit())
{
offsetValue = ConstInt64(offset);
}
else
{
offsetValue = ConstInt32(offset);
}
auto addr = Add(obj, offsetValue);
return ConvertTo(ptype, addr);
}
/**
* @brief Generate IL to load the address of a union field.
*
* The address of the field is simply the base address of the union, since the
* offset of all union fields is zero.
*/
TR::IlValue *
OMR::IlBuilder::UnionFieldInstanceAddress(const char* unionName, const char* fieldName, TR::IlValue* obj) {
auto ptype = typeDictionary()->PointerTo(typeDictionary()->UnionFieldType(unionName, fieldName));
return ConvertTo(ptype, obj);
}
TR::IlValue *
OMR::IlBuilder::NullAddress()
{
TR::IlValue *returnValue = newValue(Address, TR::Node::aconst(0));
TraceIL("IlBuilder[ %p ]::%d is NullAddress\n", this, returnValue->getID());
return returnValue;
}
TR::IlValue *
OMR::IlBuilder::ConstInt8(int8_t value)
{
TR::IlValue *returnValue = newValue(Int8, TR::Node::bconst(value));
TraceIL("IlBuilder[ %p ]::%d is ConstInt8 %d\n", this, returnValue->getID(), value);
return returnValue;
}
TR::IlValue *
OMR::IlBuilder::ConstInt16(int16_t value)
{
TR::IlValue *returnValue = newValue(Int16, TR::Node::sconst(value));
TraceIL("IlBuilder[ %p ]::%d is ConstInt16 %d\n", this, returnValue->getID(), value);
return returnValue;
}
TR::IlValue *
OMR::IlBuilder::ConstInt32(int32_t value)
{
TR::IlValue *returnValue = newValue(Int32, TR::Node::iconst(value));
TraceIL("IlBuilder[ %p ]::%d is ConstInt32 %d\n", this, returnValue->getID(), value);
return returnValue;
}
TR::IlValue *
OMR::IlBuilder::ConstInt64(int64_t value)
{
TR::IlValue *returnValue = newValue(Int64, TR::Node::lconst(value));
TraceIL("IlBuilder[ %p ]::%d is ConstInt64 %d\n", this, returnValue->getID(), value);
return returnValue;
}
TR::IlValue *
OMR::IlBuilder::ConstFloat(float value)
{
TR::Node *fconstNode = TR::Node::create(0, TR::fconst, 0);
fconstNode->setFloat(value);
TR::IlValue *returnValue = newValue(Float, fconstNode);
TraceIL("IlBuilder[ %p ]::%d is ConstFloat %f\n", this, returnValue->getID(), value);
return returnValue;
}
TR::IlValue *
OMR::IlBuilder::ConstDouble(double value)
{
TR::Node *dconstNode = TR::Node::create(0, TR::dconst, 0);
dconstNode->setDouble(value);
TR::IlValue *returnValue = newValue(Double, dconstNode);
TraceIL("IlBuilder[ %p ]::%d is ConstDouble %lf\n", this, returnValue->getID(), value);
return returnValue;
}
TR::IlValue *
OMR::IlBuilder::ConstString(const char * const value)
{
TR::IlValue *returnValue = newValue(Address, TR::Node::aconst((uintptrj_t)value));
TraceIL("IlBuilder[ %p ]::%d is ConstString %p\n", this, returnValue->getID(), value);
return returnValue;
}
TR::IlValue *
OMR::IlBuilder::ConstAddress(const void * const value)
{
TR::IlValue *returnValue = newValue(Address, TR::Node::aconst((uintptrj_t)value));
TraceIL("IlBuilder[ %p ]::%d is ConstAddress %p\n", this, returnValue->getID(), value);
return returnValue;
}
TR::IlValue *
OMR::IlBuilder::ConstInteger(TR::IlType *intType, int64_t value)
{
if (intType == Int8) return ConstInt8 ((int8_t) value);
else if (intType == Int16) return ConstInt16((int16_t) value);
else if (intType == Int32) return ConstInt32((int32_t) value);
else if (intType == Int64) return ConstInt64( value);