[llvm] [RISC-V] Limit vscale interleaving to addrspace 0. (PR #91573)

[Harald van Dijk via llvm-commits]

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@@ -21048,6 +21048,11 @@ bool RISCVTargetLowering::isLegalInterleavedAccessType(
       return false;
 
     ContainerVT = getContainerForFixedLengthVector(VT.getSimpleVT());
+  } else {
+    // The intrinsics for scalable vectors are not overloaded on pointer type
+    // and can only handle the default address space.
+    if (AddrSpace)
+      return false;
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hvdijk wrote:

The previous `if` block doesn't unconditionally return, so taking out the `else` would alter the behaviour and also apply the check to fixed-length vector types, wouldn't it? Or am I misreading?

https://github.com/llvm/llvm-project/pull/91573