[PATCH] D66295: [ARM] Sink add/mul(shufflevector(insertelement(...), ...), ...) for MVE instruction selection
Sam Tebbs via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Thu Aug 15 08:15:14 PDT 2019
samtebbs created this revision.
samtebbs added reviewers: samparker, dmgreen, SjoerdMeijer, t.p.northover, olista01, simon_tatham.
Herald added subscribers: hiraditya, kristof.beyls, javed.absar.
Herald added a project: LLVM.
This patch sinks add/mul(shufflevector(insertelement(...), ...), ...) into the basic block in which they are used so that they can then be selected together. This is useful for various MVE instructions, such as vmla and others that take R registers.
https://reviews.llvm.org/D66295
Files:
llvm/lib/Target/ARM/ARMISelLowering.cpp
llvm/test/Transforms/CodeGenPrepare/ARM/sink-add-mul-shufflevector.ll
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