[PATCH] D116327: [Coroutines] Enhance symmetric transfer for constant CmpInst

[Chuanqi Xu via Phabricator via llvm-commits]

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In D116327#3234969 <https://reviews.llvm.org/D116327#3234969>, @rjmccall wrote:

> Hmm, alright.  I really don't love that high-level semantics are dependent on exactly the right transforms happening in exactly the right way, but I guess that's what the C++ committee has stuck us with.

Yeah, agreed. BTW, the symmetric transfer is not part of the C++ standard document like tail call is not in the standard too. It is just a compiler optimization that end-users are familiar with. So it becomes a somehow de facto standard so that users would feel very odd if the compiler fails to do so.


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https://reviews.llvm.org/D116327