[PATCH] D104080: [LLD][LLVM] CG Graph profile using relocations

Fri Jul 16 08:31:37 PDT 2021

echristo added a comment.

In D104080#2835108 <https://reviews.llvm.org/D104080#2835108>, @MaskRay wrote:

> You can mention that this does increase `-fprofile-use=` object file sizes a bit but probably don't matter.
>
> For instrumentation PGO users, `-fprofile-generate=` object files are much larger than `-fprofile-use=`, so `-fprofile-use=` slightly size increases don't matter.
> For sample PGO users, this may increase the peak object file sizes a bit, but doesn't matter as your measurement for clang-13 shows.
>
>> Test Plan:
>> ninja check all, manual rtesting
>
> This should be deleted when committing.
>
>> The size went up from 107KB to 322KB, aggregate of all the input sections.
>
> How large is your clang-13? ~100MiB? Then this increase looks neligible.

I've noticed some increases in object size over here. What's the percentage increase you're expecting here in object file sizes?

Repository:
  rG LLVM Github Monorepo

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https://reviews.llvm.org/D104080