[llvm] [RISCV] Move performCombineVMergeAndVOps into RISCVFoldMasks (PR #71764)

[Luke Lau via llvm-commits]

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@@ -133,6 +438,48 @@ bool RISCVFoldMasks::convertVMergeToVMv(MachineInstr &MI, MachineInstr *V0Def) {
   return true;
 }
 
+bool RISCVFoldMasks::convertToUnmasked(MachineInstr &MI,
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lukel97 wrote:

You can see the test diff here: https://github.com/lukel97/llvm-project/commit/01854599f2cfd84899c37f4791d6c4a0784017e1

https://github.com/llvm/llvm-project/pull/71764