Matt Arsenault c8a9872259 AMDGPU/GlobalISel: Look through copies in getPtrBaseWithConstantOffset ...

We may have an SGPR->VGPR copy if a totally uniform pointer
calculation is used for a VGPR pointer operand.

Also hack around a bug in MUBUF matching which would incorrectly use
MUBUF for global when flat was requested. This should really be a
predicate on the parent pattern, but the DAG always checked this
manually inside the complex pattern.

2020-08-17 12:31:38 -04:00

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