[PATCH] D125070: [InstCombine] Simplify chain of GEP with constant indices

[William Junda Huang via Phabricator via llvm-commits]

huangjd added a comment.

@nikic

> 2. Combine constant GEPs. We already do this, but sometimes fail based on element type mismatch. This can be fixed either by canonicalizing all constant GEPs to `i8` (probably better) or by doing so only when it allows combining GEPs that otherwise couldn't be combined.

Where are the tests located for combining constant GEP?  I think currently it only work with one direction (merging the second one into the first), so I will need to make it work both ways.


Repository:
  rG LLVM Github Monorepo

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https://reviews.llvm.org/D125070