================
@@ -768,6 +772,23 @@ struct GetReturnObjectManager {
CGF.EmitAnyExprToMem(S.getReturnValue(), CGF.ReturnValue,
S.getReturnValue()->getType().getQualifiers(),
/*IsInit*/ true);
+ // If the return value has a non-trivial destructor, register a
+ // conditional cleanup that will destroy it if an exception is thrown
+ // before initial-await-resume. The cleanup is activated now and will
+ // be deactivated once initial_suspend completes normally.
+ if (QualType::DestructionKind DtorKind =
+ S.getReturnValue()->getType().isDestructedType()) {
----------------
ChuanqiXu9 wrote:
We can check for if the await initial_suspend may throw. If not, we don't need
to insert the code, then we can avoid affecting optimizer.
And also it is better to insert a warning if the initial_suspend may throw. We
did the similar thing for final_suspend.
https://github.com/llvm/llvm-project/pull/177628
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