[Transforms] Use pred_empty (NFC)

diff --git a/llvm/lib/Transforms/Scalar/LowerConstantIntrinsics.cpp b/llvm/lib/Transforms/Scalar/LowerConstantIntrinsics.cpp
index fddf28c..bfe8db8 100644 (file)
--- a/llvm/lib/Transforms/Scalar/LowerConstantIntrinsics.cpp
+++ b/llvm/lib/Transforms/Scalar/LowerConstantIntrinsics.cpp
@@ -78,7 +78,7 @@ static bool replaceConditionalBranchesOnConstant(Instruction *II,
       Other->removePredecessor(Source);
       BI->eraseFromParent();
       BranchInst::Create(Target, Source);
-      if (pred_begin(Other) == pred_end(Other))
+      if (pred_empty(Other))
         HasDeadBlocks = true;
     }
   }

diff --git a/llvm/lib/Transforms/Utils/CloneFunction.cpp b/llvm/lib/Transforms/Utils/CloneFunction.cpp
index 3225495..786287b 100644 (file)
--- a/llvm/lib/Transforms/Utils/CloneFunction.cpp
+++ b/llvm/lib/Transforms/Utils/CloneFunction.cpp
@@ -675,8 +675,7 @@ void llvm::CloneAndPruneIntoFromInst(Function *NewFunc, const Function *OldFunc,
     // Check if this block has become dead during inlining or other
     // simplifications. Note that the first block will appear dead, as it has
     // not yet been wired up properly.
-    if (I != Begin && (pred_begin(&*I) == pred_end(&*I) ||
-                       I->getSinglePredecessor() == &*I)) {
+    if (I != Begin && (pred_empty(&*I) || I->getSinglePredecessor() == &*I)) {
       BasicBlock *DeadBB = &*I++;
       DeleteDeadBlock(DeadBB);
       continue;

diff --git a/llvm/lib/Transforms/Utils/InlineFunction.cpp b/llvm/lib/Transforms/Utils/InlineFunction.cpp
index 75ffb40..54c5825 100644 (file)
--- a/llvm/lib/Transforms/Utils/InlineFunction.cpp
+++ b/llvm/lib/Transforms/Utils/InlineFunction.cpp
@@ -2471,7 +2471,7 @@ llvm::InlineResult llvm::InlineFunction(CallBase &CB, InlineFunctionInfo &IFI,
 
   // If we inlined any musttail calls and the original return is now
   // unreachable, delete it.  It can only contain a bitcast and ret.
-  if (InlinedMustTailCalls && pred_begin(AfterCallBB) == pred_end(AfterCallBB))
+  if (InlinedMustTailCalls && pred_empty(AfterCallBB))
     AfterCallBB->eraseFromParent();
 
   // We should always be able to fold the entry block of the function into the

diff --git a/llvm/lib/Transforms/Utils/LoopSimplify.cpp b/llvm/lib/Transforms/Utils/LoopSimplify.cpp
index 6c09baf..817dfc2 100644 (file)
--- a/llvm/lib/Transforms/Utils/LoopSimplify.cpp
+++ b/llvm/lib/Transforms/Utils/LoopSimplify.cpp
@@ -689,7 +689,7 @@ ReprocessLoop:
       LLVM_DEBUG(dbgs() << "LoopSimplify: Eliminating exiting block "
                         << ExitingBlock->getName() << "\n");
 
-      assert(pred_begin(ExitingBlock) == pred_end(ExitingBlock));
+      assert(pred_empty(ExitingBlock));
       Changed = true;
       LI->removeBlock(ExitingBlock);
 

diff --git a/llvm/lib/Transforms/Utils/LowerSwitch.cpp b/llvm/lib/Transforms/Utils/LowerSwitch.cpp
index a297d6d..b207599 100644 (file)
--- a/llvm/lib/Transforms/Utils/LowerSwitch.cpp
+++ b/llvm/lib/Transforms/Utils/LowerSwitch.cpp
@@ -518,7 +518,7 @@ void ProcessSwitchInst(SwitchInst *SI,
   OrigBlock->getInstList().erase(SI);
 
   // If the Default block has no more predecessors just add it to DeleteList.
-  if (pred_begin(OldDefault) == pred_end(OldDefault))
+  if (pred_empty(OldDefault))
     DeleteList.insert(OldDefault);
 }