//===- IntervalPartition.h - Interval partition Calculation -----*- C++ -*-===//
//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
// This file contains the declaration of the IntervalPartition class, which
// calculates and represents the interval partition of a function, or a
// preexisting interval partition.
#include "llvm/Analysis/Interval.h"
#include "llvm/Pass.h"
+#include <map>
+
+namespace llvm {
//===----------------------------------------------------------------------===//
//
std::vector<Interval*> Intervals;
public:
- IntervalPartition() : RootInterval(0) {}
+ static char ID; // Pass identification, replacement for typeid
+
+ IntervalPartition() : FunctionPass(&ID), RootInterval(0) {}
// run - Calculate the interval partition for this function
virtual bool runOnFunction(Function &F);
//
IntervalPartition(IntervalPartition &I, bool);
- // Destructor - Free memory
- ~IntervalPartition() { destroy(); }
-
// print - Show contents in human readable format...
- virtual void print(std::ostream &O) const;
+ virtual void print(raw_ostream &O, const Module* = 0) const;
// getRootInterval() - Return the root interval that contains the starting
// block of the function.
// Interface to Intervals vector...
const std::vector<Interval*> &getIntervals() const { return Intervals; }
-private:
- // destroy - Reset state back to before function was analyzed
- void destroy();
+ // releaseMemory - Reset state back to before function was analyzed
+ void releaseMemory();
+private:
// addIntervalToPartition - Add an interval to the internal list of intervals,
// and then add mappings from all of the basic blocks in the interval to the
// interval itself (in the IntervalMap).
void updatePredecessors(Interval *Int);
};
+} // End llvm namespace
+
#endif