[PATCH] D31460: [coroutines] Add cleanup for compiler injected objects/allocations in coroutine body

[Gor Nishanov via Phabricator via cfe-commits]

GorNishanov added inline comments.


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Comment at: lib/CodeGen/CGCoroutine.cpp:225
+  void Emit(CodeGenFunction &CGF, Flags) override {
+    CGF.EmitStmt(Deallocate);
+  }
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rnk wrote:
> This will be called twice: once for a normal exit and once for exceptional exit. In general, double emitting a `Stmt*` is not safe, since it might contain a VarDecl or a LabelDecl, but this usage is safe because `SubStmtBuilder::makeNewAndDeleteExpr()` builds two calls that can't declare anything. That is *definitely* worth a comment. :)
Thank you very much for the review!
Would switching the type of Deallocate from Stmt* to Expr* address this concern? 


https://reviews.llvm.org/D31460