[clang] [llvm] [RISCV] Support spacemit vsmtvdotii externsions (PR #202533)

[Mark Zhuang via cfe-commits]

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@@ -11,84 +11,84 @@
 
 
 // CHECK-ENC:   encoding: [0x2b,0x38,0x80,0xe2]
-// CHECK-ERROR: instruction requires the following: 'XSMTVDot' (SpacemiT Vector Dot Product Extension){{$}}
+// CHECK-ERROR: instruction requires the following: 'XSMTVDotII' (SpacemiT Vector Extension for Matrix(2.0)){{$}}
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zqb-all wrote:

Maybe we should output something like:
`instruction requires one of the following: 'XSMTVDot', 'XSMTVDotII'`
If this direction is acceptable, I can prepare a separate patch for it.

https://github.com/llvm/llvm-project/pull/202533