[CodeGen] Use pred_empty (NFC)

diff --git a/llvm/lib/CodeGen/CodeGenPrepare.cpp b/llvm/lib/CodeGen/CodeGenPrepare.cpp
index 825d3ee..4ddfe0a 100644 (file)
--- a/llvm/lib/CodeGen/CodeGenPrepare.cpp
+++ b/llvm/lib/CodeGen/CodeGenPrepare.cpp
@@ -559,7 +559,7 @@ bool CodeGenPrepare::runOnFunction(Function &F) {
 
       for (SmallVectorImpl<BasicBlock*>::iterator
              II = Successors.begin(), IE = Successors.end(); II != IE; ++II)
-        if (pred_begin(*II) == pred_end(*II))
+        if (pred_empty(*II))
           WorkList.insert(*II);
     }
 
@@ -573,7 +573,7 @@ bool CodeGenPrepare::runOnFunction(Function &F) {
 
       for (SmallVectorImpl<BasicBlock*>::iterator
              II = Successors.begin(), IE = Successors.end(); II != IE; ++II)
-        if (pred_begin(*II) == pred_end(*II))
+        if (pred_empty(*II))
           WorkList.insert(*II);
     }
 
@@ -2300,7 +2300,7 @@ bool CodeGenPrepare::dupRetToEnableTailCallOpts(BasicBlock *BB, bool &ModifiedDT
   }
 
   // If we eliminated all predecessors of the block, delete the block now.
-  if (Changed && !BB->hasAddressTaken() && pred_begin(BB) == pred_end(BB))
+  if (Changed && !BB->hasAddressTaken() && pred_empty(BB))
     BB->eraseFromParent();
 
   return Changed;

diff --git a/llvm/lib/CodeGen/WasmEHPrepare.cpp b/llvm/lib/CodeGen/WasmEHPrepare.cpp
index 44f4fe2..171ba78 100644 (file)
--- a/llvm/lib/CodeGen/WasmEHPrepare.cpp
+++ b/llvm/lib/CodeGen/WasmEHPrepare.cpp
@@ -169,7 +169,7 @@ static void eraseDeadBBsAndChildren(const Container &BBs, DomTreeUpdater *DTU) {
   SmallVector<BasicBlock *, 8> WL(BBs.begin(), BBs.end());
   while (!WL.empty()) {
     auto *BB = WL.pop_back_val();
-    if (pred_begin(BB) != pred_end(BB))
+    if (!pred_empty(BB))
       continue;
     WL.append(succ_begin(BB), succ_end(BB));
     DeleteDeadBlock(BB, DTU);