[PATCH] D45336: Apply accumulator to fadd/fmul experimental vector reductions (PR36734)

Steve Canon via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Fri Apr 6 10:06:03 PDT 2018


scanon added a comment.

In https://reviews.llvm.org/D45336#1059881, @gnzlbg wrote:

> > it should really be the default in both LLVM and source languages except where there's an explicit constraint that forces linear reduction.
>
> Tree reductions is what Rust portable packed SIMD RFC [0] currently specifies.


Yup, it's also what the Apple simd module uses.


Repository:
  rL LLVM

https://reviews.llvm.org/D45336





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