Revamp PredIteratorCache interface to be cleaner.

Summary:
This lets us use range based for loops.

Reviewers: chandlerc

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D9169

llvm-svn: 235416

1 files changed, 4 insertions, 4 deletions

diff --git a/llvm/lib/Transforms/Utils/LCSSA.cpp b/llvm/lib/Transforms/Utils/LCSSA.cpp
index 1cba367..cf155a6 100644
--- a/llvm/lib/Transforms/Utils/LCSSA.cpp
+++ b/llvm/lib/Transforms/Utils/LCSSA.cpp
@@ -112,17 +112,17 @@ static bool processInstruction(Loop &L, Instruction &Inst, DominatorTree &DT,
     if (SSAUpdate.HasValueForBlock(ExitBB))
       continue;
 
-    PHINode *PN = PHINode::Create(Inst.getType(), PredCache.GetNumPreds(ExitBB),
+    PHINode *PN = PHINode::Create(Inst.getType(), PredCache.size(ExitBB),
                                   Inst.getName() + ".lcssa", ExitBB->begin());
 
     // Add inputs from inside the loop for this PHI.
-    for (BasicBlock **PI = PredCache.GetPreds(ExitBB); *PI; ++PI) {
-      PN->addIncoming(&Inst, *PI);
+    for (BasicBlock *Pred : PredCache.get(ExitBB)) {
+      PN->addIncoming(&Inst, Pred);
 
       // If the exit block has a predecessor not within the loop, arrange for
       // the incoming value use corresponding to that predecessor to be
       // rewritten in terms of a different LCSSA PHI.
-      if (!L.contains(*PI))
+      if (!L.contains(Pred))
         UsesToRewrite.push_back(
             &PN->getOperandUse(PN->getOperandNumForIncomingValue(
                  PN->getNumIncomingValues() - 1)));