From caa26be46ad280404a03791001b355e40c1c3963 Mon Sep 17 00:00:00 2001
From: sendaoYan <yansendao.ysd@alibaba-inc.com>
Date: Wed, 18 Dec 2024 15:25:42 +0800
Subject: [PATCH] update comment "Use volatile to prevent compiler from
 optimising away the store"

---
 src/hotspot/share/runtime/frame.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/hotspot/share/runtime/frame.cpp b/src/hotspot/share/runtime/frame.cpp
index 3687b06ae9f7f..b80aa8c4457f6 100644
--- a/src/hotspot/share/runtime/frame.cpp
+++ b/src/hotspot/share/runtime/frame.cpp
@@ -1163,7 +1163,7 @@ void frame::oops_do_internal(OopClosure* f, NMethodClosure* cf,
 #ifndef PRODUCT
   // simulate GC crash here to dump java thread in error report
   if (CrashGCForDumpingJavaThread) {
-    volatile char *t = nullptr; // Use volatile modifier to make clang avoid 'dead code' elimination
+    volatile char *t = nullptr; // Use volatile to prevent compiler from optimising away the store
     *t = 'c';
   }
 #endif