[PATCH] D76608: [ARM][MVE] Add target flag for narrowing insts
Sam Parker via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Mon Mar 23 07:03:26 PDT 2020
samparker created this revision.
samparker added reviewers: dmgreen, SjoerdMeijer.
Herald added subscribers: hiraditya, kristof.beyls.
Herald added a project: LLVM.
Add a flag, 'RetainsPreviousHalf', for operations that operate on top/bottom halves of their input and only write to half of their destination, leaving the other half to retain its previous value. Extracting this out of D76235 <https://reviews.llvm.org/D76235> to make testing more manageable.
Repository:
rG LLVM Github Monorepo
https://reviews.llvm.org/D76608
Files:
llvm/lib/Target/ARM/ARMInstrFormats.td
llvm/lib/Target/ARM/ARMInstrMVE.td
llvm/lib/Target/ARM/MCTargetDesc/ARMBaseInfo.h
llvm/unittests/Target/ARM/MachineInstrTest.cpp
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