[clang] [llvm] [RISCV] Assembler support for XRivosVizip (PR #127694)

[Jessica Clarke via cfe-commits]

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@@ -202,6 +202,7 @@
 // CHECK-NEXT:     xqcilo               0.2       'Xqcilo' (Qualcomm uC Large Offset Load Store Extension)
 // CHECK-NEXT:     xqcilsm              0.2       'Xqcilsm' (Qualcomm uC Load Store Multiple Extension)
 // CHECK-NEXT:     xqcisls              0.2       'Xqcisls' (Qualcomm uC Scaled Load Store Extension)
+// CHECK-NEXT:     xrivosvizip          0.1       'XRivosVizip' (Rivos Vector Register Zips)
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jrtc27 wrote:

Both are acceptable:

> To make it easier to identify and prevent naming conflict, vendor extensions should start with a vendor name, which could be an abbreviation of the full name.

https://github.com/llvm/llvm-project/pull/127694