[PM/AA] Clean up and homogenize comments throughout basic-aa.

[oota-llvm.git] / lib / Analysis / IntervalPartition.cpp

diff --git a/lib/Analysis/IntervalPartition.cpp b/lib/Analysis/IntervalPartition.cpp
index 12c196f2f70d9e87ad0411762b39de0e3ebd0b6f..a0583e86d185e02b428f2f89016b236bfa5c6474 100644 (file)
--- a/lib/Analysis/IntervalPartition.cpp
+++ b/lib/Analysis/IntervalPartition.cpp
@@ -1,10 +1,10 @@
 //===- IntervalPartition.cpp - Interval Partition module code -------------===//
-// 
+//
 //                     The LLVM Compiler Infrastructure
 //
-// This file was developed by the LLVM research group and is distributed under
-// the University of Illinois Open Source License. See LICENSE.TXT for details.
-// 
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
 //===----------------------------------------------------------------------===//
 //
 // This file contains the definition of the IntervalPartition class, which
@@ -13,27 +13,28 @@
 //===----------------------------------------------------------------------===//
 
 #include "llvm/Analysis/IntervalIterator.h"
-#include "Support/STLExtras.h"
-
-namespace llvm {
+using namespace llvm;
 
-static RegisterAnalysis<IntervalPartition>
-X("intervals", "Interval Partition Construction", true);
+char IntervalPartition::ID = 0;
+INITIALIZE_PASS(IntervalPartition, "intervals",
+                "Interval Partition Construction", true, true)
 
 //===----------------------------------------------------------------------===//
 // IntervalPartition Implementation
 //===----------------------------------------------------------------------===//
 
-// destroy - Reset state back to before function was analyzed
-void IntervalPartition::destroy() {
-  for_each(Intervals.begin(), Intervals.end(), deleter<Interval>);
+// releaseMemory - Reset state back to before function was analyzed
+void IntervalPartition::releaseMemory() {
+  for (unsigned i = 0, e = Intervals.size(); i != e; ++i)
+    delete Intervals[i];
   IntervalMap.clear();
-  RootInterval = 0;
+  Intervals.clear();
+  RootInterval = nullptr;
 }
 
-void IntervalPartition::print(std::ostream &O) const {
-  std::copy(Intervals.begin(), Intervals.end(),
-            std::ostream_iterator<const Interval *>(O, "\n"));
+void IntervalPartition::print(raw_ostream &O, const Module*) const {
+  for(unsigned i = 0, e = Intervals.size(); i != e; ++i)
+    Intervals[i]->print(O);
 }
 
 // addIntervalToPartition - Add an interval to the internal list of intervals,
@@ -56,8 +57,8 @@ void IntervalPartition::addIntervalToPartition(Interval *I) {
 //
 void IntervalPartition::updatePredecessors(Interval *Int) {
   BasicBlock *Header = Int->getHeaderNode();
-  for (Interval::succ_iterator I = Int->Successors.begin(), 
-                              E = Int->Successors.end(); I != E; ++I)
+  for (Interval::succ_iterator I = Int->Successors.begin(),
+         E = Int->Successors.end(); I != E; ++I)
     getBlockInterval(*I)->Predecessors.push_back(Header);
 }
 
@@ -73,14 +74,14 @@ bool IntervalPartition::runOnFunction(Function &F) {
 
   ++I;  // After the first one...
 
-  // Add the rest of the intervals to the partition...
-  for_each(I, intervals_end(&F),
-          bind_obj(this, &IntervalPartition::addIntervalToPartition));
+  // Add the rest of the intervals to the partition.
+  for (function_interval_iterator E = intervals_end(&F); I != E; ++I)
+    addIntervalToPartition(*I);
 
   // Now that we know all of the successor information, propagate this to the
-  // predecessors for each block...
-  for_each(Intervals.begin(), Intervals.end(), 
-          bind_obj(this, &IntervalPartition::updatePredecessors));
+  // predecessors for each block.
+  for (unsigned i = 0, e = Intervals.size(); i != e; ++i)
+    updatePredecessors(Intervals[i]);
   return false;
 }
 
@@ -89,9 +90,9 @@ bool IntervalPartition::runOnFunction(Function &F) {
 // existing interval graph.  This takes an additional boolean parameter to
 // distinguish it from a copy constructor.  Always pass in false for now.
 //
-IntervalPartition::IntervalPartition(IntervalPartition &IP, bool) {
-  Interval *FunctionStart = IP.getRootInterval();
-  assert(FunctionStart && "Cannot operate on empty IntervalPartitions!");
+IntervalPartition::IntervalPartition(IntervalPartition &IP, bool)
+  : FunctionPass(ID) {
+  assert(IP.getRootInterval() && "Cannot operate on empty IntervalPartitions!");
 
   // Pass false to intervals_begin because we take ownership of it's memory
   interval_part_interval_iterator I = intervals_begin(IP, false);
@@ -101,14 +102,13 @@ IntervalPartition::IntervalPartition(IntervalPartition &IP, bool) {
 
   ++I;  // After the first one...
 
-  // Add the rest of the intervals to the partition...
-  for_each(I, intervals_end(IP),
-          bind_obj(this, &IntervalPartition::addIntervalToPartition));
+  // Add the rest of the intervals to the partition.
+  for (interval_part_interval_iterator E = intervals_end(IP); I != E; ++I)
+    addIntervalToPartition(*I);
 
   // Now that we know all of the successor information, propagate this to the
-  // predecessors for each block...
-  for_each(Intervals.begin(), Intervals.end(), 
-          bind_obj(this, &IntervalPartition::updatePredecessors));
+  // predecessors for each block.
+  for (unsigned i = 0, e = Intervals.size(); i != e; ++i)
+    updatePredecessors(Intervals[i]);
 }
 
-} // End llvm namespace