From 40c3e03e27c3c88b809ff1709fe3ebf571e93b4a Mon Sep 17 00:00:00 2001
From: Ramkumar Ramachandra <artagnon@gmail.com>
Date: Tue, 13 Jan 2015 03:46:47 +0000
Subject: Standardize {pred,succ,use,user}_empty()

The functions {pred,succ,use,user}_{begin,end} exist, but many users
have to check *_begin() with *_end() by hand to determine if the
BasicBlock or User is empty. Fix this with a standard *_empty(),
demonstrating a few usecases.

llvm-svn: 225760
---
 llvm/lib/Analysis/CFG.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'llvm/lib/Analysis/CFG.cpp')

diff --git a/llvm/lib/Analysis/CFG.cpp b/llvm/lib/Analysis/CFG.cpp
index 25e7bc0fc40..8ecd70b5d71 100644
--- a/llvm/lib/Analysis/CFG.cpp
+++ b/llvm/lib/Analysis/CFG.cpp
@@ -27,7 +27,7 @@ using namespace llvm;
 void llvm::FindFunctionBackedges(const Function &F,
      SmallVectorImpl<std::pair<const BasicBlock*,const BasicBlock*> > &Result) {
   const BasicBlock *BB = &F.getEntryBlock();
-  if (succ_begin(BB) == succ_end(BB))
+  if (succ_empty(BB))
     return;
 
   SmallPtrSet<const BasicBlock*, 8> Visited;
-- 
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