From 4f6cb8e54aa073f15f7ce622ea25905283683d5f Mon Sep 17 00:00:00 2001
From: Alon Zakai <azakai@google.com>
Date: Wed, 30 Nov 2022 12:08:59 -0800
Subject: [NFC] Avoid unneeded work in GTO (#5304)

As noticed in #5303, the test changes here are because we did unnecessary work
which created a new rec group, which then led to a rec group being printed out.
---
 src/passes/GlobalTypeOptimization.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'src')

diff --git a/src/passes/GlobalTypeOptimization.cpp b/src/passes/GlobalTypeOptimization.cpp
index 4f7ce7ac7..9015f3ab5 100644
--- a/src/passes/GlobalTypeOptimization.cpp
+++ b/src/passes/GlobalTypeOptimization.cpp
@@ -243,7 +243,9 @@ struct GlobalTypeOptimization : public Pass {
     }
 
     // Update the types in the entire module.
-    updateTypes(*module);
+    if (!indexesAfterRemovals.empty() || !canBecomeImmutable.empty()) {
+      updateTypes(*module);
+    }
   }
 
   void updateTypes(Module& wasm) {
-- 
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