Merge branch 'stmt-expr-coro-cleanups' of https://github.com/usx95/ll…

…vm-project into stmt-expr-coro-cleanups

clang/lib/CodeGen/CodeGenFunction.h

@@ -934,6 +934,19 @@ class CodeGenFunction : public CodeGenTypeCache {
         {EHStack.stable_begin(), DominatingIP});
   }
 
+  // Push a cleanup onto EHStack and deactivate it later. It is usually
+  // deactivated when exiting a `CleanupDeactivationScope` (for example: after a
+  // full expression).
+  template <class T, class... As>
+  void pushCleanupAndDeferDeactivation(CleanupKind Kind, As... A) {
+    // Placeholder dominating IP for this cleanup.
+    llvm::Instruction *DominatingIP =
+        Builder.CreateFlagLoad(llvm::Constant::getNullValue(Int8PtrTy));
+    EHStack.pushCleanup<T>(Kind, A...);
+    DeferredDeactivationCleanupStack.push_back(
+        {EHStack.stable_begin(), DominatingIP});
+  }
+
   /// Set up the last cleanup that was pushed as a conditional
   /// full-expression cleanup.
   void initFullExprCleanup() {