[PATCH] D33067: AMDGPU: Teach isLegalAddressingMode about flat offsets

[Matt Arsenault via Phabricator via llvm-commits]

arsenm created this revision.
Herald added subscribers: t-tye, tpr, dstuttard, yaxunl, nhaehnle, wdng, kzhuravl.

Also fix reporting r+r as a valid addressing mode without offsets.


https://reviews.llvm.org/D33067

Files:
  lib/Target/AMDGPU/SIISelLowering.cpp
  test/CodeGen/AMDGPU/cgp-addressing-modes-flat.ll

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