[llvm] [RISCV] Split and rename WriteVISlideX into WriteVSlideUpX and WriteVSlideDownX (PR #92605)

[Craig Topper via llvm-commits]

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@@ -976,10 +976,14 @@ multiclass VNCLP_IV_V_X_I<string opcodestr, bits<6> funct6> {
 }
 
 multiclass VSLD_IV_X_I<string opcodestr, bits<6> funct6> {
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topperc wrote:

Can we pass a bit as an argument to indicate up or down? That seems like a better interface then making assumptions about the name.

https://github.com/llvm/llvm-project/pull/92605