rjmccall added a comment. In D99037#2662414 <https://reviews.llvm.org/D99037#2662414>, @fhahn wrote:
> In D99037#2659477 <https://reviews.llvm.org/D99037#2659477>, @SaurabhJha > wrote: > >>> What code do you want to get out of this? Are there e.g. vectorized >>> float->double conversions we can use, or is the operation basically doomed >>> to break the matrix apart and put it back together again? >> >> I think because matrices are vectors underneath, we should try vectorised >> conversions. > > I think there should be vector versions of common conversions in most modern > vector instruction sets, e.g. both ARM64 and X86 (with varying levels of > support, depending on the supported vector extensions) have vector > instructions for sign extend i32 -> i64 and floating point extension float -> > double: https://godbolt.org/z/jx4Ya4PP5. John, please let me know if you were > referring to something else, but IIUC then it would be best to emit vector > conversion for the full vector (that should also be the easiest in terms of > codegen). Okay. In that caae, this may be somewhat verbose because you'll have to analyze the element types in IRGen and ask the matrix-lowering code to do the appropriate conversion. Not tricky, just verbose. Repository: rG LLVM Github Monorepo CHANGES SINCE LAST ACTION https://reviews.llvm.org/D99037/new/ https://reviews.llvm.org/D99037 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
