[PATCH] D84153: AMDGPU: Relax restriction on folding immediates into physregs

[Stanislav Mekhanoshin via Phabricator via llvm-commits]

rampitec added a comment.

It can probably create a worse code sometimes. Assume you have a constant which cannot be directly assigned to a register (v_accvgpr_write_b32 only accepts inline literals). If source def will not become dead it will create an extra copy. You probably need some legality checks here.


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  https://reviews.llvm.org/D84153/new/

https://reviews.llvm.org/D84153