X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=include%2Fllvm%2FAnalysis%2FLoopPass.h;h=8650000fcfb6ede62f7ded42a1c0780861ee52c6;hb=00552e3875ee5f382db6c98286a241a7d0efe1b8;hp=25488da4579a90d306e101689101080bc24979d7;hpb=3660ecabbb85b31308f38938ce3f56f0a330a84b;p=oota-llvm.git

diff --git a/include/llvm/Analysis/LoopPass.h b/include/llvm/Analysis/LoopPass.h
index 25488da4579..8650000fcfb 100644
--- a/include/llvm/Analysis/LoopPass.h
+++ b/include/llvm/Analysis/LoopPass.h
@@ -12,13 +12,13 @@
 //
 //===----------------------------------------------------------------------===//
 
-#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 {
 
@@ -28,13 +28,20 @@ class PMStack;
 
 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 override;
 
   // 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;
@@ -50,14 +57,13 @@ public:
   // LPPassManager passes. In such case, pop LPPassManager from the
   // stack. This will force assignPassManager() to create new
   // LPPassManger as expected.
-  void preparePassManager(PMStack &PMS);
+  void preparePassManager(PMStack &PMS) override;
 
   /// Assign pass manager to manage this pass
-  virtual void assignPassManager(PMStack &PMS,
-                                 PassManagerType PMT = PMT_LoopPassManager);
+  void assignPassManager(PMStack &PMS, PassManagerType PMT) override;
 
   ///  Return what kind of Pass Manager can manage this pass.
-  virtual PassManagerType getPotentialPassManagerType() const {
+  PassManagerType getPotentialPassManagerType() const override {
     return PMT_LoopPassManager;
   }
 
@@ -75,38 +81,48 @@ public:
 
   /// deleteAnalysisValue - Delete analysis info associated with value V.
   virtual void deleteAnalysisValue(Value *V, Loop *L) {}
+
+  /// Delete analysis info associated with Loop L.
+  /// Called to notify a Pass that a loop has been deleted and any
+  /// associated analysis values can be deleted.
+  virtual void deleteAnalysisLoop(Loop *L) {}
+
+protected:
+  /// skipOptnoneFunction - Containing function has Attribute::OptimizeNone
+  /// and most transformation passes should skip it.
+  bool skipOptnoneFunction(const 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.
-  bool runOnFunction(Function &F);
+  bool runOnFunction(Function &F) override;
 
   /// Pass Manager itself does not invalidate any analysis info.
   // LPPassManager needs LoopInfo.
-  void getAnalysisUsage(AnalysisUsage &Info) const;
+  void getAnalysisUsage(AnalysisUsage &Info) const override;
 
-  virtual const char *getPassName() const {
+  const char *getPassName() const override {
     return "Loop Pass Manager";
   }
 
-  virtual PMDataManager *getAsPMDataManager() { return this; }
-  virtual Pass *getAsPass() { return this; }
+  PMDataManager *getAsPMDataManager() override { return this; }
+  Pass *getAsPass() override { return this; }
 
   /// Print passes managed by this manager
-  void dumpPassStructure(unsigned Offset);
+  void dumpPassStructure(unsigned Offset) override;
 
-  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 {
+  PassManagerType getPassManagerType() const override {
     return PMT_LoopPassManager;
   }
 
@@ -141,6 +157,10 @@ public:
   /// that implement simple analysis interface.
   void deleteSimpleAnalysisValue(Value *V, Loop *L);
 
+  /// Invoke deleteAnalysisLoop hook for all passes that implement simple
+  /// analysis interface.
+  void deleteSimpleAnalysisLoop(Loop *L);
+
 private:
   std::deque<Loop *> LQ;
   bool skipThisLoop;