[Driver] Fix -fsanitize-address-stack-use-after-scope after D142606

Driver::getToolChain called by Driver::BuildCompilation gets the `Triple` argument from a temporary. With delayed detection due to LazyDetector, we would reference a dangling `Triple`.
llvm · Feb 6, 2023 · 6ab9f1e · 6ab9f1e
1 parent abbd256
commit 6ab9f1e
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/clang/lib/Driver/ToolChains/LazyDetector.h b/clang/lib/Driver/ToolChains/LazyDetector.h
@@ -20,7 +20,7 @@ namespace clang {
 
 template <class T> class LazyDetector {
   const driver::Driver &D;
-  const llvm::Triple &Triple;
+  llvm::Triple Triple;
   const llvm::opt::ArgList &Args;
 
   std::optional<T> Detector;