[llvm] [orc-rt] Add comment for Session::HandlerTag type. NFC. (PR #210510)

[Lang Hames via llvm-commits]

https://github.com/lhames created https://github.com/llvm/llvm-project/pull/210510

None

>From 601ca563aa2806f0fc9ab7fa795366ff2d18259a Mon Sep 17 00:00:00 2001
From: Lang Hames <lhames at gmail.com>
Date: Sat, 18 Jul 2026 23:05:31 +1000
Subject: [PATCH] [orc-rt] Add comment for Session::HandlerTag type. NFC.

---
 orc-rt/include/orc-rt/Session.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/orc-rt/include/orc-rt/Session.h b/orc-rt/include/orc-rt/Session.h
index 76f6b2b117954..d2971cae04250 100644
--- a/orc-rt/include/orc-rt/Session.h
+++ b/orc-rt/include/orc-rt/Session.h
@@ -91,6 +91,8 @@ class Session {
       orc_rt_SessionRef S, uint64_t CallId, orc_rt_WrapperFunctionReturn Return,
       orc_rt_WrapperFunction Fn, WrapperFunctionBuffer ArgBytes)>;
 
+  /// Tag used to identify executor-callable functions in the controller.
+  /// See callController.
   using HandlerTag = void *;
 
   /// Provides access to the controller.