[llvm] [RISCV][GISEL] Add support for scalable vector types in lowerReturnVal (PR #71587)

[Craig Topper via llvm-commits]

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@@ -336,6 +357,10 @@ static bool isSupportedReturnType(Type *T, const RISCVSubtarget &Subtarget) {
     return true;
   }
 
+  if (T->isVectorTy() && Subtarget.hasVInstructions() && T->isScalableTy() &&
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topperc wrote:

Isn't `isSupportedReturnType` used by lowerCall too?

https://github.com/llvm/llvm-project/pull/71587