[PATCH] D88028: [AMDGPU] More codegen patterns for v2i16/v2f16 build_vector

Mon Sep 21 10:02:52 PDT 2020

arsenm added a comment.

In D88028#2285683 <https://reviews.llvm.org/D88028#2285683>, @rampitec wrote:

> Can this appear later in the codegen? It also does not cover global isel, so part in the operand folding probably needs to remain in addition to patterns.

It doesn't cover globalisel because build_vector patterns don't work now (and we use G_BUILD_VECTOR_TRUNC in these cases instead).

This kind of thing should not really be a problem in globalisel.

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  https://reviews.llvm.org/D88028/new/

https://reviews.llvm.org/D88028