[llvm] [SelectionDAG][AArch64] Add dot product lowering in NEON for PARTIAL_REDUCE_*MLA ISD nodes (PR #140075)
Nicholas Guy via llvm-commits
llvm-commits at lists.llvm.org
Thu May 15 08:06:53 PDT 2025
https://github.com/NickGuy-Arm created https://github.com/llvm/llvm-project/pull/140075
Lowering for fixed width vectors added to tablegen.
There is also custom lowering to ensure that the USDOT patterns are
still lowered for fixed width vectors. It also ensures that the
v16i8 -> v4i64 partial reduction case is lowered here instead of
being split (as there is not a v2i64 dot product instruction).
@JamesChesterman is the original author.
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