[C++11] Add predecessors(BasicBlock *) / successors(BasicBlock *) iterator ranges.

Summary: This patch introduces two new iterator ranges and updates existing code to use it.  No functional change intended.

Test Plan: All tests (make check-all) still pass.

Reviewers: dblaikie

Reviewed By: dblaikie

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D4481

llvm-svn: 213474

1 files changed, 2 insertions, 2 deletions

diff --git a/llvm/lib/Analysis/LazyValueInfo.cpp b/llvm/lib/Analysis/LazyValueInfo.cpp
index 9f919f7644a..a65480c2e40 100644
--- a/llvm/lib/Analysis/LazyValueInfo.cpp
+++ b/llvm/lib/Analysis/LazyValueInfo.cpp
@@ -625,9 +625,9 @@ bool LazyValueInfoCache::solveBlockValueNonLocal(LVILatticeVal &BBLV,
   // Loop over all of our predecessors, merging what we know from them into
   // result.
   bool EdgesMissing = false;
-  for (pred_iterator PI = pred_begin(BB), E = pred_end(BB); PI != E; ++PI) {
+  for (BasicBlock *Pred : predecessors(BB)) {
     LVILatticeVal EdgeResult;
-    EdgesMissing |= !getEdgeValue(Val, *PI, BB, EdgeResult);
+    EdgesMissing |= !getEdgeValue(Val, Pred, BB, EdgeResult);
     if (EdgesMissing)
       continue;