From a185d6355b5988b03df0008eba20bbd82d1c6d1d Mon Sep 17 00:00:00 2001
From: Jonas Finnemann Jensen <jonasfj@google.com>
Date: Mon, 1 Jun 2026 02:02:26 -0700
Subject: [PATCH] Use only -O2 for dart2wasm when compiling dartpad_worker

Because -O4 might not have correct semantics.

Change-Id: Icaa3ccd1bd219e0c94e7217086c923924061fe9f
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/507420
Reviewed-by: Sigurd Meldgaard <sigurdm@google.com>
Commit-Queue: Jonas Jensen <jonasfj@google.com>
---
 utils/dartpad/compile_wasm.gni | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/utils/dartpad/compile_wasm.gni b/utils/dartpad/compile_wasm.gni
index 1ee2aa211b1..52ed5eadd84 100644
--- a/utils/dartpad/compile_wasm.gni
+++ b/utils/dartpad/compile_wasm.gni
@@ -103,13 +103,11 @@ template("compile_dart2wasm") {
         "--wasm-opt=" + rebase_path(wasm_opt_binary, root_build_dir),
         "--phases=cfe,tfa,codegen,opt",
         "--minify",
-        "-O4",
       ]
-    } else {
-      args += [ "-O2" ]
     }
 
     args += [
+      "-O2",
       rebase_path(main_dart, root_build_dir),
       rebase_path(output, root_build_dir),
     ]