[llvm] [Hexagon] Add HVX patterns for vector arithmetic (PR #170704)

[Krzysztof Parzyszek via llvm-commits]

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@@ -132,141 +132,5 @@ define <32 x i32> @xorw_128(<32 x i32> %v0, <32 x i32> %v1) #1 {
   ret <32 x i32> %p
 }
 
-; --- add
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kparzysz wrote:

Lastly, do all these tests no longer apply?

https://github.com/llvm/llvm-project/pull/170704