[llvm] [RISCV][CostModel] Make VMV_S_* and VMV_*_S cost independent of LMUL (PR #78739)

[Philip Reames via llvm-commits]

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@@ -84,6 +84,12 @@ RISCVTTIImpl::getRISCVInstructionCost(ArrayRef<unsigned> OpCodes, MVT VT,
       Cost += VL;
       break;
     }
+    case RISCV::VMV_X_S:
+    case RISCV::VFMV_F_S:
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preames wrote:

VFMV_F_S and VFMV_S_F are not used in this patch, please remove.

https://github.com/llvm/llvm-project/pull/78739