[llvm] [RISCV][GISel] Added GISelPRedicateCodes to LeadingOnes*Mask (PR #119886)

[Craig Topper via llvm-commits]

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@@ -520,7 +528,17 @@ def LeadingOnesWMask : PatLeaf<(imm), [{
   int64_t Imm = N->getSExtValue();
   return !isInt<32>(Imm) && isUInt<32>(Imm) && isShiftedMask_64(Imm) &&
          Imm != UINT64_C(0xffffffff);
-}], TrailingZeros>;
+}], TrailingZeros> {
+  let GISelPredicateCode = [{
+    if (!MRI.hasOneNonDBGUse(MI.getOperand(0).getReg()))
+      return false;
+    const auto &MO = MI.getOperand(1);
+    int64_t Imm = MO.getCImm()->getSExtValue();
+    return !isInt<32>(Imm) && isUInt<32>(Imm) && isShiftedMask_64(Imm) &&
+         Imm != UINT64_C(0xffffffff);
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topperc wrote:

Line this line up with `!` on the previous line.

https://github.com/llvm/llvm-project/pull/119886