#define LLVM_CODEGEN_REGALLOCPBQP_H
#include "llvm/ADT/DenseMap.h"
+#include "llvm/ADT/SmallVector.h"
#include "llvm/CodeGen/MachineFunctionPass.h"
-#include "llvm/CodeGen/PBQP/Graph.h"
-#include "llvm/CodeGen/PBQP/Solution.h"
-
+#include "llvm/CodeGen/PBQP/RegAllocSolver.h"
#include <map>
+#include <set>
namespace llvm {
- class LiveInterval;
+ class LiveIntervals;
+ class MachineBlockFrequencyInfo;
class MachineFunction;
- class MachineLoopInfo;
+ class TargetRegisterInfo;
+
+ typedef PBQP::RegAlloc::Graph PBQPRAGraph;
/// This class wraps up a PBQP instance representing a register allocation
/// problem, plus the structures necessary to map back from the PBQP solution
/// to a register allocation solution. (i.e. The PBQP-node <--> vreg map,
/// and the PBQP option <--> storage location map).
-
class PBQPRAProblem {
public:
typedef SmallVector<unsigned, 16> AllowedSet;
- PBQP::Graph& getGraph() { return graph; }
+ PBQPRAGraph& getGraph() { return graph; }
- const PBQP::Graph& getGraph() const { return graph; }
+ const PBQPRAGraph& getGraph() const { return graph; }
/// Record the mapping between the given virtual register and PBQP node,
/// and the set of allowed pregs for the vreg.
///
/// If you are extending
/// PBQPBuilder you are unlikely to need this: Nodes and options for all
- /// vregs will already have been set up for you by the base class.
+ /// vregs will already have been set up for you by the base class.
template <typename AllowedRegsItr>
- void recordVReg(unsigned vreg, PBQP::Graph::NodeItr node,
+ void recordVReg(unsigned vreg, PBQPRAGraph::NodeId nodeId,
AllowedRegsItr arBegin, AllowedRegsItr arEnd) {
- assert(node2VReg.find(node) == node2VReg.end() && "Re-mapping node.");
+ assert(node2VReg.find(nodeId) == node2VReg.end() && "Re-mapping node.");
assert(vreg2Node.find(vreg) == vreg2Node.end() && "Re-mapping vreg.");
assert(allowedSets[vreg].empty() && "vreg already has pregs.");
- node2VReg[node] = vreg;
- vreg2Node[vreg] = node;
+ node2VReg[nodeId] = vreg;
+ vreg2Node[vreg] = nodeId;
std::copy(arBegin, arEnd, std::back_inserter(allowedSets[vreg]));
}
/// Get the virtual register corresponding to the given PBQP node.
- unsigned getVRegForNode(PBQP::Graph::ConstNodeItr node) const;
+ unsigned getVRegForNode(PBQPRAGraph::NodeId nodeId) const;
/// Get the PBQP node corresponding to the given virtual register.
- PBQP::Graph::NodeItr getNodeForVReg(unsigned vreg) const;
+ PBQPRAGraph::NodeId getNodeForVReg(unsigned vreg) const;
/// Returns true if the given PBQP option represents a physical register,
/// false otherwise.
private:
- typedef std::map<PBQP::Graph::ConstNodeItr, unsigned,
- PBQP::NodeItrComparator> Node2VReg;
- typedef DenseMap<unsigned, PBQP::Graph::NodeItr> VReg2Node;
- typedef std::map<unsigned, AllowedSet> AllowedSetMap;
+ typedef std::map<PBQPRAGraph::NodeId, unsigned> Node2VReg;
+ typedef DenseMap<unsigned, PBQPRAGraph::NodeId> VReg2Node;
+ typedef DenseMap<unsigned, AllowedSet> AllowedSetMap;
- PBQP::Graph graph;
+ PBQPRAGraph graph;
Node2VReg node2VReg;
VReg2Node vreg2Node;
AllowedSetMap allowedSets;
-
+
};
/// Builds PBQP instances to represent register allocation problems. Includes
/// class to support additional constraints for your architecture.
class PBQPBuilder {
private:
- PBQPBuilder(const PBQPBuilder&) {}
- void operator=(const PBQPBuilder&) {}
+ PBQPBuilder(const PBQPBuilder&) LLVM_DELETED_FUNCTION;
+ void operator=(const PBQPBuilder&) LLVM_DELETED_FUNCTION;
public:
typedef std::set<unsigned> RegSet;
-
+
/// Default constructor.
PBQPBuilder() {}
/// Build a PBQP instance to represent the register allocation problem for
/// the given MachineFunction.
- virtual std::auto_ptr<PBQPRAProblem> build(
- MachineFunction *mf,
- const LiveIntervals *lis,
- const MachineLoopInfo *loopInfo,
- const RegSet &vregs);
+ virtual PBQPRAProblem *build(MachineFunction *mf, const LiveIntervals *lis,
+ const MachineBlockFrequencyInfo *mbfi,
+ const RegSet &vregs);
private:
void addSpillCosts(PBQP::Vector &costVec, PBQP::PBQPNum spillCost);
/// Extended builder which adds coalescing constraints to a problem.
class PBQPBuilderWithCoalescing : public PBQPBuilder {
public:
-
+
/// Build a PBQP instance to represent the register allocation problem for
/// the given MachineFunction.
- virtual std::auto_ptr<PBQPRAProblem> build(
- MachineFunction *mf,
- const LiveIntervals *lis,
- const MachineLoopInfo *loopInfo,
- const RegSet &vregs);
+ PBQPRAProblem *build(MachineFunction *mf, const LiveIntervals *lis,
+ const MachineBlockFrequencyInfo *mbfi,
+ const RegSet &vregs) override;
private:
PBQP::PBQPNum benefit);
};
- FunctionPass* createPBQPRegisterAllocator(std::auto_ptr<PBQPBuilder> builder);
+ FunctionPass *
+ createPBQPRegisterAllocator(std::unique_ptr<PBQPBuilder> builder,
+ char *customPassID = nullptr);
}
#endif /* LLVM_CODEGEN_REGALLOCPBQP_H */