[PATCH] D158576: [GlobalISel] Copy the implementation of SubtargetFeature and use it for PredicateBitset.

[Fangrui Song via Phabricator via llvm-commits]

MaskRay added a comment.

LGTM.

> This reduces the binary size of llc built with gcc 8.5.0 on my local build by ~15k.

Interesting. When building llc with near-thunk clang, the size goes down from 47637800 to 47637776 (small decrease). The small change is mainly in `bool llvm::GIMatchTableExecutor::executeMatchTable`


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https://reviews.llvm.org/D158576