X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=lib%2FCodeGen%2FLiveStackAnalysis.cpp;h=86f7ea20c9be750572a303e7b7ee8a059b975f13;hb=e622087e2064a5496ed9be5d9a8796349cf18b75;hp=0670570ddf5485b91f928078f870f9260a989608;hpb=8b56a90bec639665fc024896d2fc2bdd095c76a3;p=oota-llvm.git

diff --git a/lib/CodeGen/LiveStackAnalysis.cpp b/lib/CodeGen/LiveStackAnalysis.cpp
index 0670570ddf5..86f7ea20c9b 100644
--- a/lib/CodeGen/LiveStackAnalysis.cpp
+++ b/lib/CodeGen/LiveStackAnalysis.cpp
@@ -15,25 +15,34 @@
 
 #define DEBUG_TYPE "livestacks"
 #include "llvm/CodeGen/LiveStackAnalysis.h"
+#include "llvm/CodeGen/LiveIntervalAnalysis.h"
 #include "llvm/CodeGen/Passes.h"
 #include "llvm/Target/TargetRegisterInfo.h"
 #include "llvm/Support/Debug.h"
 #include "llvm/ADT/Statistic.h"
+#include <limits>
 using namespace llvm;
 
 char LiveStacks::ID = 0;
 static RegisterPass<LiveStacks> X("livestacks", "Live Stack Slot Analysis");
 
+void LiveStacks::scaleNumbering(int factor) {
+  // Scale the intervals.
+  for (iterator LI = begin(), LE = end(); LI != LE; ++LI) {
+    LI->second.scaleNumbering(factor);
+  }
+}
+
 void LiveStacks::getAnalysisUsage(AnalysisUsage &AU) const {
-  AU.addPreservedID(MachineLoopInfoID);
-  AU.addPreservedID(MachineDominatorsID);
+  AU.setPreservesAll();
   MachineFunctionPass::getAnalysisUsage(AU);
 }
 
 void LiveStacks::releaseMemory() {
   // Release VNInfo memroy regions after all VNInfo objects are dtor'd.
   VNInfoAllocator.Reset();
-  s2iMap.clear();
+  S2IMap.clear();
+  S2RCMap.clear();
 }
 
 bool LiveStacks::runOnMachineFunction(MachineFunction &) {
@@ -43,10 +52,15 @@ bool LiveStacks::runOnMachineFunction(MachineFunction &) {
 }
 
 /// print - Implement the dump method.
-void LiveStacks::print(std::ostream &O, const Module* ) const {
+void LiveStacks::print(std::ostream &O, const Module*) const {
   O << "********** INTERVALS **********\n";
   for (const_iterator I = begin(), E = end(); I != E; ++I) {
     I->second.print(O);
-    O << "\n";
+    int Slot = I->first;
+    const TargetRegisterClass *RC = getIntervalRegClass(Slot);
+    if (RC)
+      O << " [" << RC->getName() << "]\n";
+    else
+      O << " [Unknown]\n";
   }
 }