Hi, I'd like to add some pattern matching, for Turboshaft, to recognise add + shuffle patterns which correspond to a horizontal pairwise reduction. I've started doing this with wasm::SimdShuffle helpers and then during arm64 instruction selection, but it feels like the pattern matching should be done in a generic place too... So, I was thinking about adding more four more kinds (I32x4, I64x4, F32x4 and F64x2 PairwiseReduction) to Simd128UnaryOp and then perform the combining in machine-optimization-reducer.
Does this sound reasonable enough..? Or is the overhead of plumbing this into the TS IR likely going to be significantly more complicated than backend pattern matching? Thanks, Sam -- -- v8-dev mailing list v8-dev@googlegroups.com http://groups.google.com/group/v8-dev --- You received this message because you are subscribed to the Google Groups "v8-dev" group. To unsubscribe from this group and stop receiving emails from it, send an email to v8-dev+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/v8-dev/2a9c3fcd-ee78-4877-9587-2ccb3b0a59e6n%40googlegroups.com.
