[PATCH] D108129: [DAGCombiner] Teach combineShiftToMULH to handle constant and const splat vector.
Jianjian Guan via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Wed Aug 18 00:45:40 PDT 2021
jacquesguan updated this revision to Diff 367134.
jacquesguan added a comment.
Update mulhu case for (mulhu x, (1 << c)) -> x >> (bitwidth - c).
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D108129/new/
https://reviews.llvm.org/D108129
Files:
llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
llvm/test/CodeGen/RISCV/rvv/vmulh-sdnode-rv32.ll
llvm/test/CodeGen/RISCV/rvv/vmulhu-sdnode-rv32.ll
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