[llvm] [RISC-V][GISEL] Select G_BITCAST for scalable vectors (PR #101486)

[Michael Maitland via llvm-commits]

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@@ -559,6 +559,7 @@ bool RISCVInstructionSelector::select(MachineInstr &MI) {
   case TargetOpcode::G_INTTOPTR:
   case TargetOpcode::G_TRUNC:
   case TargetOpcode::G_FREEZE:
+  case TargetOpcode::G_BITCAST:
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michaelmaitland wrote:

We're going to need G_BITCAST instruction-select tests due to this line

https://github.com/llvm/llvm-project/pull/101486