1 files changed, 2 insertions, 0 deletions
diff --git a/src/ir/localize.h b/src/ir/localize.h
index 85e4415f5..b36fe6396 100644
--- a/src/ir/localize.h
+++ b/src/ir/localize.h
@@ -130,6 +130,8 @@ struct ChildLocalizer {
       // effects we can't remove, or if it interacts with other children.
       bool needLocal = effects[i].hasUnremovableSideEffects();
       if (!needLocal) {
+        // TODO: Avoid quadratic time here by accumulating effects and checking
+        //       vs the accumulation.
         for (Index j = 0; j < num; j++) {
           if (j != i && effects[i].invalidates(effects[j])) {
             needLocal = true;