[llvm] [RISCV][VLOPT] Add support for checkUsers when UserMI is a Single-Width Integer Reduction (PR #120345)

[Pengcheng Wang via llvm-commits]

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@@ -840,6 +857,9 @@ static bool isVectorOpUsedAsScalarOp(MachineOperand &MO) {
   case RISCV::VFWREDOSUM_VS:
   case RISCV::VFWREDUSUM_VS:
     return MO.getOperandNo() == 3;
+  case RISCV::VMV_X_S:
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wangpc-pp wrote:

Aha I see, this is a fix. Never mind.

https://github.com/llvm/llvm-project/pull/120345