[PATCH] D38313: [InstCombine] Introducing Aggressive Instruction Combine pass
Amjad Aboud via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Sun Jan 14 06:59:22 PST 2018
aaboud added a comment.
In https://reviews.llvm.org/D38313#971848, @mzolotukhin wrote:
> Hi and sorry for the late reply, I've just returned from the holidays break.
> The numbers posted before look good. I wonder though if it would make sense to only run this pass on -O3. I assume that even if now the pass spends very little time, it will grow in future and the compile-time costs might become noticeable.
>
> Michael
Thanks Michael for the feedback.
As you said, the pass spend very little time, cannot we decide on moving it to -O3 in the future when/if other heavy optimizations is added to this pass?
And even then, we can decide to run part of them on -O2 and the rest on -O3.
Would that work for you?
Thanks,
Amjad
https://reviews.llvm.org/D38313
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