Remove/fix invalid README entries. The well thought out strcpy function doesn't retur...

[oota-llvm.git] / lib / CodeGen / LiveStackAnalysis.cpp

diff --git a/lib/CodeGen/LiveStackAnalysis.cpp b/lib/CodeGen/LiveStackAnalysis.cpp
index 86f7ea20c9be750572a303e7b7ee8a059b975f13..895bd2e4b132e02d16d6b2f8e2a0afe745366db1 100644 (file)
--- a/lib/CodeGen/LiveStackAnalysis.cpp
+++ b/lib/CodeGen/LiveStackAnalysis.cpp
@@ -19,27 +19,26 @@
 #include "llvm/CodeGen/Passes.h"
 #include "llvm/Target/TargetRegisterInfo.h"
 #include "llvm/Support/Debug.h"
+#include "llvm/Support/raw_ostream.h"
 #include "llvm/ADT/Statistic.h"
 #include <limits>
 using namespace llvm;
 
 char LiveStacks::ID = 0;
-static RegisterPass<LiveStacks> X("livestacks", "Live Stack Slot Analysis");
+INITIALIZE_PASS(LiveStacks, "livestacks",
+                "Live Stack Slot Analysis", false, false)
 
-void LiveStacks::scaleNumbering(int factor) {
-  // Scale the intervals.
-  for (iterator LI = begin(), LE = end(); LI != LE; ++LI) {
-    LI->second.scaleNumbering(factor);
-  }
-}
+char &llvm::LiveStacksID = LiveStacks::ID;
 
 void LiveStacks::getAnalysisUsage(AnalysisUsage &AU) const {
   AU.setPreservesAll();
+  AU.addPreserved<SlotIndexes>();
+  AU.addRequiredTransitive<SlotIndexes>();
   MachineFunctionPass::getAnalysisUsage(AU);
 }
 
 void LiveStacks::releaseMemory() {
-  // Release VNInfo memroy regions after all VNInfo objects are dtor'd.
+  // Release VNInfo memory regions, VNInfo objects don't need to be dtor'd.
   VNInfoAllocator.Reset();
   S2IMap.clear();
   S2RCMap.clear();
@@ -52,15 +51,16 @@ bool LiveStacks::runOnMachineFunction(MachineFunction &) {
 }
 
 /// print - Implement the dump method.
-void LiveStacks::print(std::ostream &O, const Module*) const {
-  O << "********** INTERVALS **********\n";
+void LiveStacks::print(raw_ostream &OS, const Module*) const {
+
+  OS << "********** INTERVALS **********\n";
   for (const_iterator I = begin(), E = end(); I != E; ++I) {
-    I->second.print(O);
+    I->second.print(OS);
     int Slot = I->first;
     const TargetRegisterClass *RC = getIntervalRegClass(Slot);
     if (RC)
-      O << " [" << RC->getName() << "]\n";
+      OS << " [" << RC->getName() << "]\n";
     else
-      O << " [Unknown]\n";
+      OS << " [Unknown]\n";
   }
 }