[PATCH] D147406: [LoongArch] Optimize multiplication with immediates
Ben Shi via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Sun Apr 2 01:29:49 PDT 2023
benshi001 created this revision.
benshi001 added reviewers: SixWeining, XiaodongLoong, xen0n, wangleiat.
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benshi001 requested review of this revision.
Herald added subscribers: llvm-commits, jacquesguan.
Herald added a project: LLVM.
Optimize 'x * c' to (ALSL x, (SLLI x, i0), i1) in which
c = (1 << i0) | (1 << i1).
Repository:
rG LLVM Github Monorepo
https://reviews.llvm.org/D147406
Files:
llvm/lib/Target/LoongArch/LoongArchISelLowering.cpp
llvm/test/CodeGen/LoongArch/ir-instruction/mul.ll
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