[PATCH] D133067: [AMDGPU] W/a hazard if 64 bit shift amount is a highest allocated VGPR

[Jay Foad via Phabricator via llvm-commits]

foad added a comment.

> That is if I define a whole new set of shifts for this target. This would create a whole new set of problems.

OK, understood. We are doing something similar for 16-bit operands for GFX11, but it is a lot of work.

> constrain existing vgpr32 operand to a decimated RC

"octimated", surely? :-) :-)


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https://reviews.llvm.org/D133067