[llvm] [LV][doc] Update and extend the docs on floating-point reduction vectorization (PR #172809)

[Florian Hahn via llvm-commits]

Tibor =?utf-8?q?Győri?= <tibor.gyori at chem.u-szeged.hu>,
Tibor =?utf-8?q?Győri?= <tibor.gyori at chem.u-szeged.hu>,
Tibor =?utf-8?q?Győri?= <tibor.gyori at chem.u-szeged.hu>,GYT
 <tiborgyri at gmail.com>,GYT <tiborgyri at gmail.com>
Message-ID:
In-Reply-To: <llvm.org/llvm/llvm-project/pull/172809 at github.com>


https://github.com/fhahn edited https://github.com/llvm/llvm-project/pull/172809