[PATCH] D109124: [ARM] Implement target hook function to decide folding (mul (add x, c1), c2)

[Ben Shi via Phabricator via llvm-commits]

benshi001 created this revision.
benshi001 added reviewers: dmgreen, t.p.northover, RKSimon, efriedma.
Herald added subscribers: steven.zhang, kristof.beyls.
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Prevent the folding in DAGCombine if it leads to worse code.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D109124

Files:
  llvm/test/CodeGen/ARM/addimm-mulimm.ll

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