[llvm] [X86] Recognise VPMADD52L pattern with AVX512IFMA/AVXIFMA (#153787) (PR #156714)

[Justin Riddell via llvm-commits]

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+; RUN: llc < %s -O1 -mtriple=x86_64-unknown-unknown | FileCheck %s --check-prefixes=X64
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Arghnews wrote:

Have made this change. Apologies, I did check other tests and many of them use the attributes lines so I presumed it was acceptable. It is much neater now.

I wasn't sure exactly the combination of attributes that needed testing, appreciate you providing it here

https://github.com/llvm/llvm-project/pull/156714