Reverting dtor devirtualization patch.

[oota-llvm.git] / include / llvm / PassManagers.h

diff --git a/include/llvm/PassManagers.h b/include/llvm/PassManagers.h
index fd78833a85aa99a4b8baeeefd7735f2db4610dad..7c29263f3971405594133cea7f3d93f6ba7c26a0 100644 (file)
--- a/include/llvm/PassManagers.h
+++ b/include/llvm/PassManagers.h
@@ -12,8 +12,7 @@
 //===----------------------------------------------------------------------===//
 
 #include "llvm/PassManager.h"
-
-using namespace llvm;
+#include "llvm/ADT/SmallVector.h"
 class llvm::PMDataManager;
 class llvm::PMStack;
 
@@ -84,6 +83,9 @@ class llvm::PMStack;
 // MPPassManagers.
 //===----------------------------------------------------------------------===//
 
+#ifndef PASSMANAGERS_H
+#define PASSMANAGERS_H
+
 namespace llvm {
 
 /// FunctionPassManager and PassManager, two top level managers, serve 
@@ -127,17 +129,17 @@ public:
   virtual void addTopLevelPass(Pass  *P) = 0;
 
   /// Set pass P as the last user of the given analysis passes.
-  void setLastUser(std::vector<Pass *> &AnalysisPasses, Pass *P);
+  void setLastUser(SmallVector<Pass *, 12> &AnalysisPasses, Pass *P);
 
   /// Collect passes whose last user is P
-  void collectLastUses(std::vector<Pass *> &LastUses, Pass *P);
+  void collectLastUses(SmallVector<Pass *, 12> &LastUses, Pass *P);
 
   /// Find the pass that implements Analysis AID. Search immutable
   /// passes and all pass managers. If desired pass is not found
   /// then return NULL.
   Pass *findAnalysisPass(AnalysisID AID);
 
-  PMTopLevelManager(enum TopLevelManagerType t);
+  explicit PMTopLevelManager(enum TopLevelManagerType t);
   virtual ~PMTopLevelManager(); 
 
   /// Add immutable pass and initialize it.
@@ -198,7 +200,7 @@ private:
 class PMDataManager {
 public:
 
-  PMDataManager(int Depth) : TPM(NULL), Depth(Depth) {
+  explicit PMDataManager(int Depth) : TPM(NULL), Depth(Depth) {
     initializeAnalysisInfo();
   }
 
@@ -211,16 +213,29 @@ public:
   /// Augment AvailableAnalysis by adding analysis made available by pass P.
   void recordAvailableAnalysis(Pass *P);
 
+  /// verifyPreservedAnalysis -- Verify analysis presreved by pass P.
+  void verifyPreservedAnalysis(Pass *P);
+
   /// Remove Analysis that is not preserved by the pass
   void removeNotPreservedAnalysis(Pass *P);
   
   /// Remove dead passes
-  void removeDeadPasses(Pass *P, std::string Msg, enum PassDebuggingString);
+  void removeDeadPasses(Pass *P, const char *Msg, enum PassDebuggingString);
 
   /// Add pass P into the PassVector. Update 
   /// AvailableAnalysis appropriately if ProcessAnalysis is true.
   void add(Pass *P, bool ProcessAnalysis = true);
 
+  /// Add RequiredPass into list of lower level passes required by pass P.
+  /// RequiredPass is run on the fly by Pass Manager when P requests it
+  /// through getAnalysis interface.
+  virtual void addLowerLevelRequiredPass(Pass *P, Pass *RequiredPass);
+
+  virtual Pass * getOnTheFlyPass(Pass *P, const PassInfo *PI, Function &F) {
+    assert (0 && "Unable to find on the fly pass");
+    return NULL;
+  }
+
   /// Initialize available analysis information.
   void initializeAnalysisInfo() { 
     AvailableAnalysis.clear();
@@ -233,10 +248,12 @@ public:
   bool preserveHigherLevelAnalysis(Pass *P);
 
 
-  /// Populate RequiredPasses with the analysis pass that are required by
-  /// pass P.
-  void collectRequiredAnalysisPasses(std::vector<Pass *> &RequiredPasses,
-                                     Pass *P);
+  /// Populate RequiredPasses with analysis pass that are required by
+  /// pass P and are available. Populate ReqPassNotAvailable with analysis
+  /// pass that are required by pass P but are not available.
+  void collectRequiredAnalysis(SmallVector<Pass *, 8> &RequiredPasses,
+                               SmallVector<AnalysisID, 8> &ReqPassNotAvailable,
+                               Pass *P);
 
   /// All Required analyses should be available to the pass as it runs!  Here
   /// we fill in the AnalysisImpls member of the pass so that it can
@@ -258,7 +275,7 @@ public:
   void dumpLastUses(Pass *P, unsigned Offset) const;
   void dumpPassArguments() const;
   void dumpPassInfo(Pass *P, enum PassDebuggingString S1,
-                    enum PassDebuggingString S2, std::string Msg);
+                    enum PassDebuggingString S2, const char *Msg);
   void dumpAnalysisSetInfo(const char *Msg, Pass *P,
                            const std::vector<AnalysisID> &Set) const;
 
@@ -321,7 +338,9 @@ private:
 class FPPassManager : public ModulePass, public PMDataManager {
  
 public:
-  FPPassManager(int Depth) : PMDataManager(Depth) { }
+  static char ID;
+  explicit FPPassManager(int Depth) 
+  : ModulePass(intptr_t(&ID)), PMDataManager(Depth) { }
   
   /// 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.
@@ -332,7 +351,7 @@ public:
   ///
   bool doInitialization(Module &M);
   
-  /// doFinalization - Run all of the initializers for the function passes.
+  /// doFinalization - Run all of the finalizers for the function passes.
   ///
   bool doFinalization(Module &M);
 
@@ -361,5 +380,8 @@ public:
 
 }
 
-extern void StartPassTimer(Pass *);
-extern void StopPassTimer(Pass *);
+extern void StartPassTimer(llvm::Pass *);
+extern void StopPassTimer(llvm::Pass *);
+
+#endif
+