1 files changed, 2 insertions, 2 deletions
diff --git a/contrib/llvm-project/llvm/lib/Transforms/Scalar/LoopDataPrefetch.cpp b/contrib/llvm-project/llvm/lib/Transforms/Scalar/LoopDataPrefetch.cpp
index 77d76609c926..57e36e5b9b90 100644
--- a/contrib/llvm-project/llvm/lib/Transforms/Scalar/LoopDataPrefetch.cpp
+++ b/contrib/llvm-project/llvm/lib/Transforms/Scalar/LoopDataPrefetch.cpp
@@ -224,8 +224,8 @@ bool LoopDataPrefetch::run() {
   bool MadeChange = false;
 
   for (Loop *I : *LI)
-    for (auto L = df_begin(I), LE = df_end(I); L != LE; ++L)
-      MadeChange |= runOnLoop(*L);
+    for (Loop *L : depth_first(I))
+      MadeChange |= runOnLoop(L);
 
   return MadeChange;
 }