[PATCH] Fix build with STLPort and gcc

[Matt Arsenault]

  Use 0 instead of NULL, remove EquivalenceClass change since it can be avoided with STLPort configuration

http://llvm-reviews.chandlerc.com/D561

CHANGE SINCE LAST DIFF
  http://llvm-reviews.chandlerc.com/D561?vs=1348&id=1404#toc

Files:
  lib/Analysis/PathProfileVerifier.cpp
  lib/Analysis/ProfileInfo.cpp

Index: lib/Analysis/PathProfileVerifier.cpp
===================================================================
--- lib/Analysis/PathProfileVerifier.cpp
+++ lib/Analysis/PathProfileVerifier.cpp
@@ -84,7 +84,7 @@
   for (Module::iterator F = M.begin(), E = M.end(); F != E; ++F) {
     if (F->isDeclaration()) continue;
 
-    arrayMap[0][F->begin()][0] = i++;
+    arrayMap[(BasicBlock*)0][F->begin()][0] = i++;
 
     for (Function::iterator BB = F->begin(), E = F->end(); BB != E; ++BB) {
       TerminatorInst *TI = BB->getTerminator();
@@ -125,7 +125,7 @@
             << currentPath->getCount() << "\n");
       // setup the entry edge (normally path profiling doesn't care about this)
       if (currentPath->getFirstBlockInPath() == &F->getEntryBlock())
-        edgeArray[arrayMap[0][currentPath->getFirstBlockInPath()][0]]
+        edgeArray[arrayMap[(BasicBlock*)0][currentPath->getFirstBlockInPath()][0]]
           += currentPath->getCount();
 
       for( ProfilePathEdgeIterator nextEdge = pev->begin(),
Index: lib/Analysis/ProfileInfo.cpp
===================================================================
--- lib/Analysis/ProfileInfo.cpp
+++ lib/Analysis/ProfileInfo.cpp
@@ -249,7 +249,7 @@
 
     succ_const_iterator Succ = succ_begin(BB), End = succ_end(BB);
     if (Succ == End) {
-      P[0] = BB;
+      P[(const BasicBlock*)0] = BB;
       if (Mode & GetPathToExit) {
         hasFoundPath = true;
         BB = 0;
@@ -752,10 +752,10 @@
            Succ != End; ++Succ) {
         Path P;
         GetPath(*Succ, 0, P, GetPathToExit);
-        if (Dest && Dest != P[0]) {
+        if (Dest && Dest != P[(const BasicBlock*)0]) {
           AllEdgesHaveSameReturn = false;
         }
-        Dest = P[0];
+        Dest = P[(const BasicBlock*)0];
       }
       if (AllEdgesHaveSameReturn) {
         if(EstimateMissingEdges(BB)) {
@@ -927,7 +927,7 @@
 
       Path P;
       const BasicBlock *Dest = GetPath(BB, 0, P, GetPathToExit | GetPathWithNewEdges);
-      Dest = P[0];
+      Dest = P[(const BasicBlock*)0];
       if (!Dest) continue;
 
       if (getEdgeWeight(getEdge(Dest,0)) == MissingValue) {
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