mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-25 20:23:11 +01:00
46990c17f7
must be called in the pass's constructor. This function uses static dependency declarations to recursively initialize the pass's dependencies. Clients that only create passes through the createFooPass() APIs will require no changes. Clients that want to use the CommandLine options for passes will need to manually call the appropriate initialization functions in PassInitialization.h before parsing commandline arguments. I have tested this with all standard configurations of clang and llvm-gcc on Darwin. It is possible that there are problems with the static dependencies that will only be visible with non-standard options. If you encounter any crash in pass registration/creation, please send the testcase to me directly. llvm-svn: 116820
102 lines
2.6 KiB
C++
102 lines
2.6 KiB
C++
//===-- llvm/CodeGen/Splitter.h - Splitter -*- C++ -*----------------------===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef LLVM_CODEGEN_SPLITTER_H
|
|
#define LLVM_CODEGEN_SPLITTER_H
|
|
|
|
#include "llvm/CodeGen/MachineFunctionPass.h"
|
|
#include "llvm/CodeGen/MachineLoopInfo.h"
|
|
#include "llvm/CodeGen/SlotIndexes.h"
|
|
|
|
#include <deque>
|
|
#include <map>
|
|
#include <string>
|
|
#include <vector>
|
|
|
|
namespace llvm {
|
|
|
|
class LiveInterval;
|
|
class LiveIntervals;
|
|
struct LiveRange;
|
|
class LoopSplit;
|
|
class MachineDominatorTree;
|
|
class MachineRegisterInfo;
|
|
class SlotIndexes;
|
|
class TargetInstrInfo;
|
|
class VNInfo;
|
|
|
|
class LoopSplitter : public MachineFunctionPass {
|
|
friend class LoopSplit;
|
|
public:
|
|
static char ID;
|
|
|
|
LoopSplitter() : MachineFunctionPass(ID) {
|
|
initializeLoopSplitterPass(*PassRegistry::getPassRegistry());
|
|
}
|
|
|
|
virtual void getAnalysisUsage(AnalysisUsage &au) const;
|
|
|
|
virtual bool runOnMachineFunction(MachineFunction &fn);
|
|
|
|
virtual void releaseMemory();
|
|
|
|
|
|
private:
|
|
|
|
MachineFunction *mf;
|
|
LiveIntervals *lis;
|
|
MachineLoopInfo *mli;
|
|
MachineRegisterInfo *mri;
|
|
MachineDominatorTree *mdt;
|
|
SlotIndexes *sis;
|
|
const TargetInstrInfo *tii;
|
|
const TargetRegisterInfo *tri;
|
|
|
|
std::string fqn;
|
|
std::deque<LiveInterval*> intervals;
|
|
|
|
typedef std::pair<SlotIndex, SlotIndex> SlotPair;
|
|
typedef std::vector<SlotPair> LoopRanges;
|
|
typedef std::map<MachineLoop*, LoopRanges> LoopRangeMap;
|
|
LoopRangeMap loopRangeMap;
|
|
|
|
void dumpLoopInfo(MachineLoop &loop);
|
|
|
|
void dumpOddTerminators();
|
|
|
|
void updateTerminators(MachineBasicBlock &mbb);
|
|
|
|
bool canInsertPreHeader(MachineLoop &loop);
|
|
MachineBasicBlock& insertPreHeader(MachineLoop &loop);
|
|
|
|
bool isCriticalEdge(MachineLoop::Edge &edge);
|
|
bool canSplitEdge(MachineLoop::Edge &edge);
|
|
MachineBasicBlock& splitEdge(MachineLoop::Edge &edge, MachineLoop &loop);
|
|
|
|
LoopRanges& getLoopRanges(MachineLoop &loop);
|
|
std::pair<bool, SlotPair> getLoopSubRange(const LiveRange &lr,
|
|
MachineLoop &loop);
|
|
|
|
void dumpLoopRanges(MachineLoop &loop);
|
|
|
|
void processHeader(LoopSplit &split);
|
|
void processLoopExits(LoopSplit &split);
|
|
void processLoopUses(LoopSplit &split);
|
|
|
|
bool splitOverLoop(LiveInterval &li, MachineLoop &loop);
|
|
|
|
void processInterval(LiveInterval &li);
|
|
|
|
void processIntervals();
|
|
};
|
|
|
|
}
|
|
|
|
#endif
|