[PATCH] D106447: [DAGCombine] DAGTypeLegalizer::GenWidenVectorLoads(): make use of dereferenceability knowledge

[Roman Lebedev via Phabricator via llvm-commits]

lebedev.ri created this revision.
lebedev.ri added reviewers: RKSimon, spatel, craig.topper, pengfei.
lebedev.ri added a project: LLVM.
Herald added subscribers: kerbowa, hiraditya, nhaehnle, jvesely.
lebedev.ri requested review of this revision.

In `@dot3_float3`, while we know that the pointer has sufficient dereferenceable bytes,
the load itself is not aligned sufficiently, and that is the only number
that is currently used to determine legality of performing the wide load.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D106447

Files:
  llvm/lib/CodeGen/SelectionDAG/LegalizeVectorTypes.cpp
  llvm/test/CodeGen/AMDGPU/kernel-args.ll
  llvm/test/CodeGen/X86/load-partial-dot-product.ll

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