[PATCH] D58155: [GlobalISel][AArch64] Legalize + select some llvm.ctlz.* intrinsics
Jessica Paquette via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Tue Feb 12 15:53:10 PST 2019
paquette created this revision.
paquette added a reviewer: aemerson.
Herald added subscribers: Petar.Avramovic, kristof.beyls, javed.absar, rovka.
Legalize/select llvm.ctlz.* for types that the importer can grab easily.
Add select-ctlz to show that we actually select them. Update arm64-clrsb.ll and arm64-vclz.ll to show that we perform valid transformations in optimized builds, and document where GISel can improve.
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