//
//===----------------------------------------------------------------------===//
-#ifndef LLVM_LOOP_PASS_H
-#define LLVM_LOOP_PASS_H
+#ifndef LLVM_ANALYSIS_LOOPPASS_H
+#define LLVM_ANALYSIS_LOOPPASS_H
#include "llvm/Analysis/LoopInfo.h"
+#include "llvm/IR/LegacyPassManagers.h"
#include "llvm/Pass.h"
-#include "llvm/PassManagers.h"
-#include "llvm/Function.h"
+#include <deque>
namespace llvm {
class LoopPass : public Pass {
public:
- explicit LoopPass(intptr_t pid) : Pass(pid) {}
- explicit LoopPass(void *pid) : Pass(pid) {}
+ explicit LoopPass(char &pid) : Pass(PT_Loop, pid) {}
+
+ /// getPrinterPass - Get a pass to print the function corresponding
+ /// to a Loop.
+ Pass *createPrinterPass(raw_ostream &O, const std::string &Banner) const;
// runOnLoop - This method should be implemented by the subclass to perform
// whatever action is necessary for the specified Loop.
virtual bool runOnLoop(Loop *L, LPPassManager &LPM) = 0;
+ using llvm::Pass::doInitialization;
+ using llvm::Pass::doFinalization;
+
// Initialization and finalization hooks.
virtual bool doInitialization(Loop *L, LPPassManager &LPM) {
return false;
// LPPassManger as expected.
void preparePassManager(PMStack &PMS);
- /// Assign pass manager to manager this pass
+ /// Assign pass manager to manage this pass
virtual void assignPassManager(PMStack &PMS,
- PassManagerType PMT = PMT_LoopPassManager);
+ PassManagerType PMT);
/// Return what kind of Pass Manager can manage this pass.
virtual PassManagerType getPotentialPassManagerType() const {
/// cloneBasicBlockAnalysis - Clone analysis info associated with basic block.
virtual void cloneBasicBlockAnalysis(BasicBlock *F, BasicBlock *T, Loop *L) {}
- /// deletekAnalysisValue - Delete analysis info associated with value V.
+ /// deleteAnalysisValue - Delete analysis info associated with value V.
virtual void deleteAnalysisValue(Value *V, Loop *L) {}
+
+protected:
+ /// skipOptnoneFunction - Containing function has Attribute::OptimizeNone
+ /// and most transformation passes should skip it.
+ bool skipOptnoneFunction(Loop *L) const;
};
class LPPassManager : public FunctionPass, public PMDataManager {
public:
static char ID;
- explicit LPPassManager(int Depth);
+ explicit LPPassManager();
/// run - Execute all of the passes scheduled for execution. Keep track of
/// whether any of the passes modifies the module, and if so, return true.
return "Loop Pass Manager";
}
+ virtual PMDataManager *getAsPMDataManager() { return this; }
+ virtual Pass *getAsPass() { return this; }
+
/// Print passes managed by this manager
void dumpPassStructure(unsigned Offset);
- Pass *getContainedPass(unsigned N) {
+ LoopPass *getContainedPass(unsigned N) {
assert(N < PassVector.size() && "Pass number out of range!");
- Pass *FP = static_cast<Pass *>(PassVector[N]);
- return FP;
+ LoopPass *LP = static_cast<LoopPass *>(PassVector[N]);
+ return LP;
}
virtual PassManagerType getPassManagerType() const {
// Delete loop from the loop queue and loop nest (LoopInfo).
void deleteLoopFromQueue(Loop *L);
- // Insert loop into the loop nest(LoopInfo) and loop queue(LQ).
+ // Insert loop into the loop queue and add it as a child of the
+ // given parent.
void insertLoop(Loop *L, Loop *ParentLoop);
+ // Insert a loop into the loop queue.
+ void insertLoopIntoQueue(Loop *L);
+
// Reoptimize this loop. LPPassManager will re-insert this loop into the
// queue. This allows LoopPass to change loop nest for the loop. This
// utility may send LPPassManager into infinite loops so use caution.