//
//===----------------------------------------------------------------------===//
-#ifndef LLVM_CODEGEN_LIVESTACK_ANALYSIS_H
-#define LLVM_CODEGEN_LIVESTACK_ANALYSIS_H
+#ifndef LLVM_CODEGEN_LIVESTACKANALYSIS_H
+#define LLVM_CODEGEN_LIVESTACKANALYSIS_H
-#include "llvm/CodeGen/MachineFunctionPass.h"
#include "llvm/CodeGen/LiveInterval.h"
-#include "llvm/Target/TargetRegisterInfo.h"
+#include "llvm/CodeGen/MachineFunctionPass.h"
#include "llvm/Support/Allocator.h"
+#include "llvm/Target/TargetRegisterInfo.h"
#include <map>
namespace llvm {
class LiveStacks : public MachineFunctionPass {
+ const TargetRegisterInfo *TRI;
+
/// Special pool allocator for VNInfo's (LiveInterval val#).
///
- BumpPtrAllocator VNInfoAllocator;
+ VNInfo::Allocator VNInfoAllocator;
/// S2IMap - Stack slot indices to live interval mapping.
///
public:
static char ID; // Pass identification, replacement for typeid
- LiveStacks() : MachineFunctionPass(&ID) {}
+ LiveStacks() : MachineFunctionPass(ID) {
+ initializeLiveStacksPass(*PassRegistry::getPassRegistry());
+ }
typedef SS2IntervalMap::iterator iterator;
typedef SS2IntervalMap::const_iterator const_iterator;
iterator begin() { return S2IMap.begin(); }
iterator end() { return S2IMap.end(); }
- void scaleNumbering(int factor);
-
unsigned getNumIntervals() const { return (unsigned)S2IMap.size(); }
- LiveInterval &getOrCreateInterval(int Slot, const TargetRegisterClass *RC) {
- assert(Slot >= 0 && "Spill slot indice must be >= 0");
- SS2IntervalMap::iterator I = S2IMap.find(Slot);
- if (I == S2IMap.end()) {
- I = S2IMap.insert(I,std::make_pair(Slot, LiveInterval(Slot,0.0F,true)));
- S2RCMap.insert(std::make_pair(Slot, RC));
- } else {
- // Use the largest common subclass register class.
- const TargetRegisterClass *OldRC = S2RCMap[Slot];
- S2RCMap[Slot] = getCommonSubClass(OldRC, RC);
- }
- return I->second;
- }
+ LiveInterval &getOrCreateInterval(int Slot, const TargetRegisterClass *RC);
LiveInterval &getInterval(int Slot) {
assert(Slot >= 0 && "Spill slot indice must be >= 0");
return I->second;
}
- BumpPtrAllocator& getVNInfoAllocator() { return VNInfoAllocator; }
+ VNInfo::Allocator& getVNInfoAllocator() { return VNInfoAllocator; }
- virtual void getAnalysisUsage(AnalysisUsage &AU) const;
- virtual void releaseMemory();
+ void getAnalysisUsage(AnalysisUsage &AU) const override;
+ void releaseMemory() override;
/// runOnMachineFunction - pass entry point
- virtual bool runOnMachineFunction(MachineFunction&);
+ bool runOnMachineFunction(MachineFunction&) override;
/// print - Implement the dump method.
- virtual void print(std::ostream &O, const Module* = 0) const;
- void print(std::ostream *O, const Module* M = 0) const {
- if (O) print(*O, M);
- }
+ void print(raw_ostream &O, const Module* = nullptr) const override;
};
}