Expose passinfo from BreakCriticalEdges pass so that it may be "Required" by

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

diff --git a/include/llvm/PassAnalysisSupport.h b/include/llvm/PassAnalysisSupport.h
index e59399d48fe73eb74486b4d530ac735f88ebcb7e..490c5bf12c64637068b886669f937d38d29ef9a8 100644 (file)
--- a/include/llvm/PassAnalysisSupport.h
+++ b/include/llvm/PassAnalysisSupport.h
@@ -25,37 +25,45 @@
 //
 class AnalysisUsage {
   // Sets of analyses required and preserved by a pass
-  std::vector<AnalysisID> Required, Preserved, Provided;
+  std::vector<AnalysisID> Required, Preserved;
   bool PreservesAll;
 public:
   AnalysisUsage() : PreservesAll(false) {}
   
-  // addRequires - Add the specified ID to the required set of the usage info
+  // addRequired - Add the specified ID to the required set of the usage info
   // for a pass.
   //
-  AnalysisUsage &addRequired(AnalysisID ID) {
+  AnalysisUsage &addRequiredID(AnalysisID ID) {
     Required.push_back(ID);
     return *this;
   }
+  template<class PassClass>
+  AnalysisUsage &addRequired() {
+    assert(Pass::getClassPassInfo<PassClass>() && "Pass class not registered!");
+    Required.push_back(Pass::getClassPassInfo<PassClass>());
+    return *this;
+  }
 
-  // addPreserves - Add the specified ID to the set of analyses preserved by
+  // addPreserved - Add the specified ID to the set of analyses preserved by
   // this pass
   //
-  AnalysisUsage &addPreserved(AnalysisID ID) {
+  AnalysisUsage &addPreservedID(AnalysisID ID) {
     Preserved.push_back(ID);
     return *this;
   }
 
-  void addProvided(AnalysisID ID) {
-    Provided.push_back(ID);
+  template<class PassClass>
+  AnalysisUsage &addPreserved() {
+    assert(Pass::getClassPassInfo<PassClass>() && "Pass class not registered!");
+    Preserved.push_back(Pass::getClassPassInfo<PassClass>());
+    return *this;
   }
 
-  // PreservesAll - Set by analyses that do not transform their input at all
+  // setPreservesAll - Set by analyses that do not transform their input at all
   void setPreservesAll() { PreservesAll = true; }
   bool preservesAll() const { return PreservesAll; }
 
-  // preservesCFG - This function should be called to by the pass, iff they do
-  // not:
+  // preservesCFG - This function should be called by the pass, iff they do not:
   //
   //  1. Add or remove basic blocks from the function
   //  2. Modify terminator instructions in any way.
@@ -67,31 +75,32 @@ public:
 
   const std::vector<AnalysisID> &getRequiredSet() const { return Required; }
   const std::vector<AnalysisID> &getPreservedSet() const { return Preserved; }
-  const std::vector<AnalysisID> &getProvidedSet() const { return Provided; }
 };
 
 
 
 //===----------------------------------------------------------------------===//
-// AnalysisResolver - Simple interface implemented by PassManagers objects that
+// AnalysisResolver - Simple interface implemented by PassManager objects that
 // is used to pull analysis information out of them.
 //
 struct AnalysisResolver {
   virtual Pass *getAnalysisOrNullUp(AnalysisID ID) const = 0;
   virtual Pass *getAnalysisOrNullDown(AnalysisID ID) const = 0;
-  Pass *getAnalysis(AnalysisID ID) {
+  Pass *getAnalysis(AnalysisID ID) const {
     Pass *Result = getAnalysisOrNullUp(ID);
     assert(Result && "Pass has an incorrect analysis uses set!");
     return Result;
   }
 
   // getAnalysisToUpdate - Return an analysis result or null if it doesn't exist
-  Pass *getAnalysisToUpdate(AnalysisID ID) {
-    Pass *Result = getAnalysisOrNullUp(ID);
-    return Result;
+  Pass *getAnalysisToUpdate(AnalysisID ID) const {
+    return getAnalysisOrNullUp(ID);
   }
 
+  // Methods for introspecting into pass manager objects...
   virtual unsigned getDepth() const = 0;
+  virtual unsigned getNumContainedPasses() const = 0;
+  virtual const Pass *getContainedPass(unsigned N) const = 0;
 
   virtual void markPassUsed(AnalysisID P, Pass *User) = 0;