[PATCH] D60401: [llvm-exegesis] When generating templates with chained instructions, also add templates for helper instructions

Roman Lebedev via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Thu Apr 11 05:09:09 PDT 2019


lebedev.ri added a comment.

In D60401#1462522 <https://reviews.llvm.org/D60401#1462522>, @gchatelet wrote:

> ...


So i agree in general, but i don't think i agree with fine print.

What if i don't want to validate the whole entirety of the instructions,
but only one of these instructions that is `Measurable through another instruction`?
I simply can't?

I agree with the general direction of `to fully characterize or check a processor.`,
but i'm not fully sure yet how that will be used/useful for actual schedule profiles.

I guess it's also a question  of "is already useful and getting useful every day"
vs. "useful and will be more useful some time in the future",
i.e. the rate of improvement.

Just 2 cent.


Repository:
  rL LLVM

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D60401/new/

https://reviews.llvm.org/D60401





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