Use do+while instead of while for loops which obviously have a
non-zero trip count. Use SmallVector's pop_back_val().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92734 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Transforms/Scalar/SCCVN.cpp b/lib/Transforms/Scalar/SCCVN.cpp
index f91fbda..9685a29 100644
--- a/lib/Transforms/Scalar/SCCVN.cpp
+++ b/lib/Transforms/Scalar/SCCVN.cpp
@@ -678,8 +678,7 @@
stack.push_back(*PI);
while (!stack.empty()) {
- BasicBlock* CurrBB = stack.back();
- stack.pop_back();
+ BasicBlock* CurrBB = stack.pop_back_val();
visited.insert(CurrBB);
ValueNumberScope* S = BBMap[CurrBB];