[PATCH] D125438: [InstCombine] NEW Baseline tests for InstCombine optimization to merge GEP instructions with constant indices
William Junda Huang via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Wed May 11 17:37:10 PDT 2022
huangjd created this revision.
huangjd added reviewers: davidxl, Carrot, nikic, spatel, reames.
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Splitted the merge constant-indexed GEP optimization into two smaller transformations: 1. Merging GEP of GEP if both are constant-indexed. 2. Swapping constant indexed GEP in a chain of (non-constant) GEP to the end, so that 1 can be applied repeatedly.
There is existing code to partially handle transformation 1, but it only deals with limited cases
Unit tests are breaking down into two parts for the 2 transformations.
Repository:
rG LLVM Github Monorepo
https://reviews.llvm.org/D125438
Files:
llvm/test/Transforms/InstCombine/gep-canonicalize-constant-indices.ll
llvm/test/Transforms/InstCombine/gep-merge-constant-indices.ll
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