[PATCH] D65921: [X86] Add DSB subtarget feature. NFC

Wed Aug 28 03:40:43 PDT 2019

gpei added a comment.

In D65921#1639186 <https://reviews.llvm.org/D65921#1639186>, @RKSimon wrote:

> In D65921#1625064 <https://reviews.llvm.org/D65921#1625064>, @gpei wrote:
>
> > In D65921#1620693 <https://reviews.llvm.org/D65921#1620693>, @RKSimon wrote:
> >
> > > Is there anything we can add as tests here?
> >
> >
> > It's hard to add tests for this sub-target feature. Could you please give me an example?
>
>
> How are you intending to use this feature? DSB is an uop-cache so are you intending to connect this to the instruction schedulers some how? Or is it going to affect instruction selection decisions?

Sorry for replying your message so late. Yes, this feature is for some proprietary passes.

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  https://reviews.llvm.org/D65921/new/

https://reviews.llvm.org/D65921