[PATCH] D125845: [InstCombine] Canonicalize GEP of GEP by swapping constant-indexed GEP to the back

[Florian Hahn via Phabricator via llvm-commits]

fhahn added a comment.

Note that there's also a dedicated pass to separate constant GEP offsets, which can be run as part of the backend pipeline: `llvm/lib/Transforms/Scalar/SeparateConstOffsetFromGEP.cpp`. It was enabled on AArch64 for a while but had to be disabled because it was also causing performance regressions .


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