[clang] [llvm] [CIR] Support x86 builtin rotate (PR #169566)

[Andy Kaylor via llvm-commits]

================
@@ -85,6 +88,41 @@ static mlir::Value getMaskVecValue(CIRGenBuilderTy &builder, mlir::Location loc,
   return maskVec;
 }
 
+static mlir::Value emitX86FunnelShift(CIRGenFunction &cgf,
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andykaylor wrote:

```suggestion
static mlir::Value emitX86FunnelShift(CIRGenBuilderTy &builder,
```

https://github.com/llvm/llvm-project/pull/169566