[PATCH] D142313: [PowerPC] Replace PPCISD::VABSD(X,Y,0) cases with generic ISD::ABDU(X,Y) node
Simon Pilgrim via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Sun Jan 22 10:13:28 PST 2023
RKSimon created this revision.
RKSimon added reviewers: nemanjai, Esme, steven.zhang.
Herald added subscribers: shchenz, kbarton, hiraditya.
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RKSimon requested review of this revision.
Herald added a project: LLVM.
A move towards using the generic ISD::ABDU nodes on more backends
PowerPC has a select(icmp_ugt(x,y),sub(x,y),sub(y,x)) -> abdu(x,y) that I intend to move to DAGCombiner in a future patch.
I'm not sure what to do about the remaining PPCISD::VABSD(X,Y,1) v4i32 case, so have left it for now.
Repository:
rG LLVM Github Monorepo
https://reviews.llvm.org/D142313
Files:
llvm/lib/Target/PowerPC/PPCISelLowering.cpp
llvm/lib/Target/PowerPC/PPCInstrVSX.td
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