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Commit migrated from https://github.com/dotnet/coreclr/commit/6ea024a4b60287af40280d774bfdae1ed05489fc

diff --git a/src/coreclr/src/jit/flowgraph.cpp b/src/coreclr/src/jit/flowgraph.cpp
index cb7c476150bf55e3c344eb71ce6f78446ba8c161..8f7bbd503a7bd325073ac3a6dcaa3dadb3703db1 100644 (file)
--- a/src/coreclr/src/jit/flowgraph.cpp
+++ b/src/coreclr/src/jit/flowgraph.cpp
@@ -18505,6 +18505,10 @@ void Compiler::fgSetTreeSeqHelper(GenTree* tree, bool isLIR)
         {
             fgSetTreeSeqHelper(sizeNode, isLIR);
         }
+
+        // We either have a DYN_BLK or a STORE_DYN_BLK. If the latter, we have a
+        // src (the Data to be stored), and isReverse tells us whether to evaluate
+        // that before dstAddr.
         if (isReverse && (src != nullptr))
         {
             fgSetTreeSeqHelper(src, isLIR);