Use empty() instead of begin() == end().

llvm-svn: 54780

3 files changed, 4 insertions, 4 deletions

diff --git a/llvm/lib/Transforms/IPO/LoopExtractor.cpp b/llvm/lib/Transforms/IPO/LoopExtractor.cpp
index 10ec3065af7..8e55b3f0919 100644
--- a/llvm/lib/Transforms/IPO/LoopExtractor.cpp
+++ b/llvm/lib/Transforms/IPO/LoopExtractor.cpp
@@ -79,7 +79,7 @@ bool LoopExtractor::runOnFunction(Function &F) {
   LoopInfo &LI = getAnalysis<LoopInfo>();
 
   // If this function has no loops, there is nothing to do.
-  if (LI.begin() == LI.end())
+  if (LI.empty())
     return false;
 
   DominatorTree &DT = getAnalysis<DominatorTree>();
diff --git a/llvm/lib/Transforms/Scalar/LoopIndexSplit.cpp b/llvm/lib/Transforms/Scalar/LoopIndexSplit.cpp
index 135ce33ee6f..1ab9a18cf6f 100644
--- a/llvm/lib/Transforms/Scalar/LoopIndexSplit.cpp
+++ b/llvm/lib/Transforms/Scalar/LoopIndexSplit.cpp
@@ -1006,9 +1006,9 @@ bool LoopIndexSplit::updateLoopIterationSpace(SplitInfo &SD) {
 
   // Remove split condition.
   SD.SplitCondition->eraseFromParent();
-  if (Op0->use_begin() == Op0->use_end())
+  if (Op0->use_empty())
     Op0->eraseFromParent();
-  if (Op1->use_begin() == Op1->use_end())
+  if (Op1->use_empty())
     Op1->eraseFromParent();
       
   BranchInst *ExitInsn =
diff --git a/llvm/lib/Transforms/Utils/SimplifyCFG.cpp b/llvm/lib/Transforms/Utils/SimplifyCFG.cpp
index d04fce6892a..efd17650f2d 100644
--- a/llvm/lib/Transforms/Utils/SimplifyCFG.cpp
+++ b/llvm/lib/Transforms/Utils/SimplifyCFG.cpp
@@ -107,7 +107,7 @@ static bool CanPropagatePredecessorsForPHIs(BasicBlock *BB, BasicBlock *Succ) {
       CommonPreds.insert(*PI);
 
   // Shortcut, if there are no common predecessors, merging is always safe
-  if (CommonPreds.begin() == CommonPreds.end())
+  if (CommonPreds.empty())
     return true;
   
   // Look at all the phi nodes in Succ, to see if they present a conflict when