tlively added inline comments.
================ Comment at: llvm/test/CodeGen/WebAssembly/simd-widening.ll:113 + +;; Also test that similar patterns are still expanded correctly + ---------------- aheejin wrote: > It'd be clearer to say starting indices of these don't start with 0 or > [lanecount - 1] so they can't be widened using `widen_low` or `widen_high` > instructions. > > Question: Can we also widen these using shifts? Sure, since I didn't end up testing more patterns, I can make the comment more specific. Regarding shifts, I don't think it's possible to do widening with shifts because widening has to fundamentally change the number of lanes, which shifts can't do. Repository: rG LLVM Github Monorepo CHANGES SINCE LAST ACTION https://reviews.llvm.org/D84556/new/ https://reviews.llvm.org/D84556 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
