llvm/llvm-project
AMDGPU should handle SimplifyDemandedVectorElts for more trivial intrinsics
Offen
#131.734 geöffnet am 18.03.2025
backend:AMDGPUgood first issuemissed-optimization
Repository-Metriken
- Stars
- (26.378 Sterne)
- PR-Merge-Metriken
- (PR-Metriken ausstehend)
Beschreibung
As a follow up to https://github.com/llvm/llvm-project/pull/128647, more intrinsics should be handled in SimplifyDemandedVectorElts.
This includes: Intrinsic::amdgcn_readlane, Intrinsic::amdgcn_update_dpp, Intrinsic::amdgcn_permlane16, Intrinsic::amdgcn_permlanex16, Intrinsic::amdgcn_permlane64 and Intrinsic::amdgcn_mov_dpp8
This is mostly a matter of adding the intrinsics to the switch, some boilerplate to keep the other immediate operands as they are, and adding tests similar to the ones added in #128647