fixup! [RISCV] Change vector tuple type's TypeSize to scalable

Author: 4vtomat

llvm/include/llvm/CodeGen/ValueTypes.h

@@ -185,8 +185,7 @@ namespace llvm {
 
     /// Return true if the type is a scalable type.
     bool isScalableVT() const {
-      return isScalableVector() || isScalableTargetExtVT() ||
-             isRISCVVectorTuple();
+      return isScalableVector() || isScalableTargetExtVT();
     }
 
     /// Return true if this is a 16-bit vector type.

llvm/include/llvm/CodeGenTypes/MachineValueType.h

@@ -124,7 +124,7 @@ namespace llvm {
 
     /// Return true if this is a custom target type that has a scalable size.
     bool isScalableTargetExtVT() const {
-      return SimpleTy == MVT::aarch64svcount;
+      return SimpleTy == MVT::aarch64svcount || isRISCVVectorTuple();
     }
 
     /// Return true if the type is a scalable type.