[llvm] [X86][SchedModel] Use ZMM zero-idiom class for 512-bit VPSUB/VPCMPGT on Znver4 (PR #215109)

[Nazar Mokrynskyi via llvm-commits]

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@@ -9,7 +9,7 @@
 // This file defines the machine model for Znver4 to support instruction
 // scheduling and other instruction cost heuristics.
 // Based on:
-//  * AMD Software Optimization Guide for the AMD Family 19h (Zen4) 
+//  * AMD Software Optimization Guide for the AMD Family 19h (Zen4)
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nazar-pc wrote:

I understand, but it is trivial to ignore whitespace changes during review on GitHub (there is a button) and my IDE automatically removes trailing whitespaces from edited files automatically.

I'll keep it in mind for next time though and can edit the files if it is a real  problem here.

https://github.com/llvm/llvm-project/pull/215109