87 lines
2.9 KiB
C++
87 lines
2.9 KiB
C++
//===- IRPartitionLayer.h - Partition IR module on lookup -------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// JIT layer for breaking up modules into smaller submodules that only contains
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// looked up symbols.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_EXECUTIONENGINE_ORC_IRPARTITIONLAYER_H
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#define LLVM_EXECUTIONENGINE_ORC_IRPARTITIONLAYER_H
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#include "llvm/ExecutionEngine/Orc/IndirectionUtils.h"
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#include "llvm/ExecutionEngine/Orc/Layer.h"
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#include "llvm/IR/Attributes.h"
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#include "llvm/IR/Constant.h"
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#include "llvm/IR/Constants.h"
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#include "llvm/IR/DataLayout.h"
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#include "llvm/IR/Function.h"
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#include "llvm/IR/GlobalAlias.h"
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#include "llvm/IR/GlobalValue.h"
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#include "llvm/IR/GlobalVariable.h"
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#include "llvm/IR/Instruction.h"
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#include "llvm/IR/Mangler.h"
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#include "llvm/IR/Module.h"
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#include "llvm/IR/Type.h"
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#include "llvm/Support/Compiler.h"
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namespace llvm {
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namespace orc {
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/// A layer that breaks up IR modules into smaller submodules that only contains
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/// looked up symbols.
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class LLVM_ABI IRPartitionLayer : public IRLayer {
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friend class PartitioningIRMaterializationUnit;
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public:
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using GlobalValueSet = std::set<const GlobalValue *>;
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/// Partitioning function.
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using PartitionFunction =
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std::function<std::optional<GlobalValueSet>(GlobalValueSet Requested)>;
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/// Construct a IRPartitionLayer.
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IRPartitionLayer(ExecutionSession &ES, IRLayer &BaseLayer);
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/// Off-the-shelf partitioning which compiles all requested symbols (usually
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/// a single function at a time).
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static std::optional<GlobalValueSet>
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compileRequested(GlobalValueSet Requested);
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/// Off-the-shelf partitioning which compiles whole modules whenever any
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/// symbol in them is requested.
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static std::optional<GlobalValueSet>
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compileWholeModule(GlobalValueSet Requested);
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/// Sets the partition function.
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void setPartitionFunction(PartitionFunction Partition);
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/// Emits the given module. This should not be called by clients: it will be
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/// called by the JIT when a definition added via the add method is requested.
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void emit(std::unique_ptr<MaterializationResponsibility> R,
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ThreadSafeModule TSM) override;
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private:
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void cleanUpModule(Module &M);
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void expandPartition(GlobalValueSet &Partition);
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void emitPartition(std::unique_ptr<MaterializationResponsibility> R,
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ThreadSafeModule TSM,
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IRMaterializationUnit::SymbolNameToDefinitionMap Defs);
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IRLayer &BaseLayer;
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PartitionFunction Partition = compileRequested;
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SymbolLinkagePromoter PromoteSymbols;
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};
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} // namespace orc
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} // namespace llvm
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#endif
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