[llvm] [RISCV] Porting hasAllNBitUsers to RISCV GISel for instruction select (PR #124678)

[Sam Elliott via llvm-commits]

================
@@ -1943,17 +1943,21 @@ def : Pat<(i64 (shl (and GPR:$rs1, 0xffffffff), uimm5:$shamt)),
 
 class binop_allhusers<SDPatternOperator operator>
     : PatFrag<(ops node:$lhs, node:$rhs),
-              (XLenVT (operator node:$lhs, node:$rhs)), [{
+              (XLenVT(operator node:$lhs, node:$rhs)), [{
----------------
lenary wrote:

```suggestion
              (XLenVT (operator node:$lhs, node:$rhs)), [{
```

https://github.com/llvm/llvm-project/pull/124678