ADT/STLExtras: Introduce llvm::empty; NFC
This is modeled after C++17 std::empty().
Differential Revision: https://reviews.llvm.org/D53909
llvm-svn: 345679
diff --git a/llvm/lib/Analysis/LazyCallGraph.cpp b/llvm/lib/Analysis/LazyCallGraph.cpp
index b1d585b..3f22ada 100644
--- a/llvm/lib/Analysis/LazyCallGraph.cpp
+++ b/llvm/lib/Analysis/LazyCallGraph.cpp
@@ -619,7 +619,7 @@
// If the merge range is empty, then adding the edge didn't actually form any
// new cycles. We're done.
- if (MergeRange.begin() == MergeRange.end()) {
+ if (empty(MergeRange)) {
// Now that the SCC structure is finalized, flip the kind to call.
SourceN->setEdgeKind(TargetN, Edge::Call);
return false; // No new cycle.