[clang] [Clang][CodeGen][Coroutines] Make coroutine startup exception-safe (C… (PR #202279)

[Chuanqi Xu via cfe-commits]

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@@ -64,6 +64,12 @@ struct clang::CodeGen::CGCoroData {
   // statements jumps to this point after calling return_xxx promise member.
   CodeGenFunction::JumpDest FinalJD;
 
+  // A cleanup flag for the coroutine return value object when it is initialized
+  // directly by the get-return-object invocation. It models the standard's
+  // initial-await-resume-called guard for exceptions thrown during coroutine
+  // startup, before the initial await_resume starts.
+  Address InitialReturnObjectActiveFlag = Address::invalid();
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ChuanqiXu9 wrote:

OK, seems fine to me

https://github.com/llvm/llvm-project/pull/202279