[clang] [llvm] [RISC-V] Added the mips extension instructions like ehb,ihb and pause etc for MIPS RV64 P8700. (PR #155747)

[Craig Topper via llvm-commits]

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@@ -166,7 +181,7 @@ def : Pat<(select (XLenVT GPR:$rs2), (XLenVT GPR:$rs1), (XLenVT GPR:$rs3)),
 }
 
 let Predicates = [HasVendorXMIPSLSP], hasSideEffects = 0,
-                 DecoderNamespace = "Xmipslsp" in {
+                 DecoderNamespace = "XMIPS" in {
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topperc wrote:

```suggestion
    DecoderNamespace = "XMIPS" in {
```

https://github.com/llvm/llvm-project/pull/155747