Files
revng-revng/include/revng/ValueMaterializer/AdvancedValueInfo.h
Giacomo Vercesi 27f419c8cd Fix and ban namespace clobbering
Fix an instance where the `std` namespace got clobbered into the global
namespace by accident.
2026-02-16 10:34:38 +01:00

90 lines
2.8 KiB
C++

#pragma once
//
// This file is distributed under the MIT License. See LICENSE.md for details.
//
#include <map>
#include "revng/ADT/ConstantRangeSet.h"
#include "revng/MFP/Graph.h"
#include "revng/MFP/MFP.h"
#include "revng/ValueMaterializer/ControlFlowEdgesGraph.h"
#include "revng/ValueMaterializer/DataFlowRangeAnalysis.h"
namespace llvm {
class Instruction;
class LazyValueInfo;
class DominatorTree;
} // namespace llvm
class DataFlowGraph;
class AdvancedValueInfoMFI {
public:
using LatticeElement = std::map<llvm::Instruction *, ConstantRangeSet>;
using GraphType = const ControlFlowEdgesGraph *;
using Label = const ControlFlowEdgesGraph::Node *;
using ResultsMap = std::map<Label, MFP::MFPResult<LatticeElement>>;
using InstructionsSet = llvm::SmallPtrSetImpl<llvm::Instruction *>;
private:
llvm::LazyValueInfo &LVI;
DataFlowRangeAnalysis &DFRA;
const llvm::DominatorTree &DT;
llvm::Instruction *Context;
llvm::SmallPtrSetImpl<llvm::Instruction *> &Instructions;
bool ZeroExtendConstraints = false;
public:
AdvancedValueInfoMFI(llvm::LazyValueInfo &LVI,
DataFlowRangeAnalysis &DFRA,
const llvm::DominatorTree &DT,
llvm::Instruction *Context,
InstructionsSet &Instructions,
bool ZeroExtendConstraints) :
LVI(LVI),
DFRA(DFRA),
DT(DT),
Context(Context),
Instructions(Instructions),
ZeroExtendConstraints(ZeroExtendConstraints) {}
public:
LatticeElement combineValues(const LatticeElement &LHS,
const LatticeElement &RHS) const;
bool isLessOrEqual(const LatticeElement &LHS,
const LatticeElement &RHS) const;
LatticeElement applyTransferFunction(Label L, const LatticeElement &E) const;
public:
static void dump(GraphType CFEG, const ResultsMap &AllResults);
};
static_assert(MFP::MonotoneFrameworkInstance<AdvancedValueInfoMFI>);
/// \p DFG the data flow graph containing the instructions we're interested in.
/// \p Context the position in the function for the current query.
std::tuple<
std::map<llvm::Instruction *, ConstantRangeSet>,
ControlFlowEdgesGraph,
std::map<const ForwardNode<ControlFlowEdgesNode> *,
MFP::MFPResult<std::map<llvm::Instruction *, ConstantRangeSet>>>>
runAVI(const DataFlowGraph &DFG,
llvm::Instruction *Context,
const llvm::DominatorTree &DT,
llvm::LazyValueInfo &LVI,
DataFlowRangeAnalysis &DFRA,
bool ZeroExtendConstraints);
template<>
void MFP::dump(llvm::raw_ostream &Stream,
unsigned Indent,
const std::map<llvm::Instruction *, ConstantRangeSet> &Element);
template<>
void MFP::dumpLabel(llvm::raw_ostream &Stream,
const ControlFlowEdgesGraph::Node *const &Label);