[PATCH] D101980: [RFC] [Coroutines] Put the contents of byval argument to the frame

Fri May 14 08:37:47 PDT 2021

lxfind added a comment.

In D101980#2758843 <https://reviews.llvm.org/D101980#2758843>, @ChuanqiXu wrote:

> In D101980#2758780 <https://reviews.llvm.org/D101980#2758780>, @lxfind wrote:
>
>> Something like this: D102465 <https://reviews.llvm.org/D102465>. Let me know what you think.
>
> Oh it is tricky. Since we add a new intrinsic use for the alloca and the intrinsic can't be analyzed by other passes. So the alloca we want wouldn't be optimized. The overall ideas looks good. For the details, I would like to emit the intrinsic for the arguments who are passed by value only. I think we could dive into it further.

Yeah and that's much easier to figure out in the front-end than in the IR.

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https://reviews.llvm.org/D101980