[llvm] [NFC][AArch64] Tests for guarding unrolling with scalable vec ins/ext (PR #81132)

[David Sherwood via llvm-commits]

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@@ -30,6 +30,41 @@ declare <vscale x 4 x i32> @llvm.vector.insert.nxv4i32.v16i32(<vscale x 4 x i32>
 declare <vscale x 4 x i32> @llvm.vector.extract.nxv4i32.nxv16i32(<vscale x 16 x i32>, i64)
 declare <vscale x 16 x i32> @llvm.vector.insert.nxv16i32.nxv4i32(<vscale x 16 x i32>, <vscale x 4 x i32>, i64)
 
+define void @vector_insert_extract_legal_idxzero_128b(<vscale x 4 x float> %v0, <4 x float> %v1, <vscale x 2 x double> %v2) #1 {
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david-arm wrote:

I think it would be good to have some tests for inserting/extracting predicates here too, i.e.

```
   %insert_nxv16i1_nxv2i1 = call <vscale x 16 x i1> @llvm.vector.insert.nxv16i1.v2i1(<vscale x 16 x i1> undef, <vscale x 2 x i1> undef, i64 0)
```

https://github.com/llvm/llvm-project/pull/81132