[llvm] Workaround -Wglobal-constructor warning. (PR #94699)

[Eric Schweitz via llvm-commits]

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@@ -79,7 +82,7 @@ bool CodeGenCoverage::parse(MemoryBuffer &Buffer, StringRef BackendName) {
 bool CodeGenCoverage::emit(StringRef CoveragePrefix,
                            StringRef BackendName) const {
   if (!CoveragePrefix.empty() && !RuleCoverage.empty()) {
-    sys::SmartScopedLock<true> Lock(OutputMutex);
+    sys::SmartScopedLock<true> Lock(OutputMutex());
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schweitzpgi wrote:

Since the variable is static, this is the only use.

https://github.com/llvm/llvm-project/pull/94699