[PATCH] D29601: AMDGPU: Simplify isLegalAddressingMode

[Matt Arsenault via Phabricator via llvm-commits]

arsenm created this revision.
Herald added a reviewer: tstellarAMD.
Herald added subscribers: tpr, tony-tye, yaxunl, nhaehnle, wdng, kzhuravl.

4-byte alignment is good enough in all address spaces,
so early exit for that case.

     

This fixes being overly conservative with stack accesses
of larger types.


https://reviews.llvm.org/D29601

Files:
  lib/Target/AMDGPU/SIISelLowering.cpp
  test/CodeGen/AMDGPU/unaligned-load-store.ll

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