// No need to include Pass.h, we are being included by it!
-// CreatePass - Helper template to invoke the constructor for the AnalysisID
-// class. Note that this should be a template internal to AnalysisID, but
-// GCC 2.95.3 crashes if we do that, doh.
-//
-template<class AnalysisType>
-static Pass *CreatePass() { return new AnalysisType(); }
-
-//===----------------------------------------------------------------------===//
-// AnalysisID - This class is used to uniquely identify an analysis pass that
-// is referenced by a transformation.
-//
-class AnalysisID {
- static unsigned NextID; // Next ID # to deal out...
- unsigned ID; // Unique ID for this analysis
- Pass *(*Constructor)(); // Constructor to return the Analysis
-
- AnalysisID(); // Disable default ctor
- AnalysisID(unsigned id, Pass *(*Ct)()) : ID(id), Constructor(Ct) {}
-public:
- // create - the only way to define a new AnalysisID. This static method is
- // supposed to be used to define the class static AnalysisID's that are
- // provided by analysis passes. In the implementation (.cpp) file for the
- // class, there should be a line that looks like this (using CallGraph as an
- // example):
- //
- // AnalysisID CallGraph::ID(AnalysisID::create<CallGraph>());
- //
- template<class AnalysisType>
- static AnalysisID create() {
- return AnalysisID(NextID++, CreatePass<AnalysisType>);
- }
-
- // Special Copy Constructor - This is how analysis passes declare that they
- // only depend on the CFG of the function they are working on, so they are not
- // invalidated by other passes that do not modify the CFG. This should be
- // used like this:
- // AnalysisID DominatorSet::ID(AnalysisID::create<DominatorSet>(), true);
- //
- AnalysisID(const AnalysisID &AID, bool DependsOnlyOnCFG = false);
-
-
- inline Pass *createPass() const { return Constructor(); }
-
- inline bool operator==(const AnalysisID &A) const {
- return A.ID == ID;
- }
- inline bool operator!=(const AnalysisID &A) const {
- return A.ID != ID;
- }
- inline bool operator<(const AnalysisID &A) const {
- return ID < A.ID;
- }
-};
//===----------------------------------------------------------------------===//
// AnalysisUsage - Represent the analysis usage information of a pass. This
//
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.
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;
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