[llvm] [RISCV][CostModel][NFC] Add getRISCVInstructionCost() to TTI for Cost… (PR #73651)

[Shih-Po Hung via llvm-commits]

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@@ -387,7 +446,12 @@ InstructionCost RISCVTTIImpl::getShuffleCost(TTI::ShuffleKind Kind,
         //   vsetivli zero, 2, e8, mf8, ta, ma (ignored)
         //   vmv.v.x v8, a0
         //   vmsne.vi v0, v8, 0
-        return LT.first * TLI->getLMULCost(LT.second) * 3;
+        return LT.first *
+               (TLI->getLMULCost(LT.second) + // FIXME: should be 1 for andi
+                getRISCVInstructionCost(RISCVInstruction::VMV, LT.second, 1,
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arcbbb wrote:

Fixed. Thanks!

https://github.com/llvm/llvm-project/pull/73651