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

[Craig Topper via llvm-commits]

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@@ -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)), [{
   return hasAllHUsers(Node);
-}]>;
+}]> {
+  let GISelPredicateCode = [{ return hasAllHUsers(MI); }];
+}
 
 // PatFrag to allow ADDW/SUBW/MULW/SLLW to be selected from i64 add/sub/mul/shl
 // if only the lower 32 bits of their result is used.
 class binop_allwusers<SDPatternOperator operator>
-    : PatFrag<(ops node:$lhs, node:$rhs),
-              (i64 (operator node:$lhs, node:$rhs)), [{
+    : PatFrag<(ops node:$lhs, node:$rhs), (i64(operator node:$lhs, node:$rhs)),
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topperc wrote:

space after i64

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