[llvm] [VectorCombine][AArch64] Fold interleave of reversed deinterleave (PR #216308)

[via llvm-commits]

github-actions[bot] wrote:

test-suite diff from 07e1e6976a656b00036d3aecd6e629c11fc4799e...ee8ed45a2924cd3a9f83139e3d4009b0e324a86c: https://github.com/llvm/llvm-project/actions/runs/32283477226/artifacts/9379336862

Statistics: https://github.com/llvm/llvm-project/actions/runs/32283477226/artifacts/9379338101

## riscv64-linux-gnu `-march=rva23u64 -O3`
| ('Program', '')    |   ('size..text', 'base') |   ('size..text', 'head') |   ('size..text', 'diff') |
|:-------------------|-------------------------:|-------------------------:|-------------------------:|
| Geomean difference |                      nan |                      nan |                        0 |
## aarch64-linux-gnu `-march=armv9-a -O3`
| ('Program', '')    |   ('size..text', 'base') |   ('size..text', 'head') |   ('size..text', 'diff') |
|:-------------------|-------------------------:|-------------------------:|-------------------------:|
| Geomean difference |                      nan |                      nan |                        0 |
## x86_64-linux-gnu `-march=x86-64-v3 -O3`
| ('Program', '')    |   ('size..text', 'base') |   ('size..text', 'head') |   ('size..text', 'diff') |
|:-------------------|-------------------------:|-------------------------:|-------------------------:|
| Geomean difference |                      nan |                      nan |                        0 |


https://github.com/llvm/llvm-project/pull/216308