[PATCH] D69088: [Lex] #pragma clang transform

Thu Oct 17 20:10:33 PDT 2019

hsaito added a comment.

In D69088#1714019 <https://reviews.llvm.org/D69088#1714019>, @Meinersbur wrote:

> In D69088#1713933 <https://reviews.llvm.org/D69088#1713933>, @hsaito wrote:
>
> > Have we established general consensus for the desire to have the flexible enough loop optimization pass ordering to accomplish the outcome of the new directive, and shared vision for the path to get there? If we are making this a general clang directive, I'd like to see the vision to get there w/o depending on polly. If this is already discussed and settled, pointer to that is appreciated so that I can learn.
>
>
> Response to the RFCs was meager. However, I got positive feedback at various conferences, including last year's DevMtg where my version for loop transformations was a technical talk <https://youtu.be/QpvZt9w-Jik?t=813>.

Personally, I like the intent. I don't foresee a clear (enough) path to get there. This leads to hesitation of adding a new non-experimental pragma and present it to programmers. If you call it experimental, it's easier for me to swallow.

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https://reviews.llvm.org/D69088