1 files changed, 4 insertions, 0 deletions
diff --git a/src/jit/block.h b/src/jit/block.h
index 20d4952ad6..1e6d1754ab 100644
--- a/src/jit/block.h
+++ b/src/jit/block.h
@@ -353,6 +353,10 @@ struct BasicBlock : private LIR::Range
                                        // BBJ_CALLFINALLY block, as well as, on x86, the final step block out of a
                                        // finally.
 
+// Flags that relate blocks to loop structure.
+
+#define BBF_LOOP_FLAGS (BBF_LOOP_PREHEADER | BBF_LOOP_HEAD | BBF_LOOP_CALL0 | BBF_LOOP_CALL1)
+
     bool isRunRarely()
     {
         return ((bbFlags & BBF_RUN_RARELY) != 0);