[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
diff --git a/llvm/lib/Transforms/Utils/BreakCriticalEdges.cpp b/llvm/lib/Transforms/Utils/BreakCriticalEdges.cpp
index 80bd516..dc12f97 100644
--- a/llvm/lib/Transforms/Utils/BreakCriticalEdges.cpp
+++ b/llvm/lib/Transforms/Utils/BreakCriticalEdges.cpp
@@ -233,9 +233,7 @@
if (PN->getIncomingBlock(i) != NewBB)
OtherPreds.push_back(PN->getIncomingBlock(i));
} else {
- for (pred_iterator I = pred_begin(DestBB), E = pred_end(DestBB);
- I != E; ++I) {
- BasicBlock *P = *I;
+ for (BasicBlock *P : predecessors(DestBB)) {
if (P != NewBB)
OtherPreds.push_back(P);
}
@@ -321,9 +319,7 @@
// the predecessor must be directly in TIL, not in a subloop, or again
// LoopSimplify doesn't hold.
SmallVector<BasicBlock *, 4> LoopPreds;
- for (pred_iterator I = pred_begin(DestBB), E = pred_end(DestBB); I != E;
- ++I) {
- BasicBlock *P = *I;
+ for (BasicBlock *P : predecessors(DestBB)) {
if (P == NewBB)
continue; // The new block is known.
if (LI->getLoopFor(P) != TIL) {