[llvm] [DA] Rewrite Banerjee MIV test with SCEV-based interval arithmetic (PR #207662)

[Ryotaro Kasuga via llvm-commits]

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kasuga-fj wrote:

This test probably doesn't make sense. The offset operand of getelementptr is automatically extended to the index type, which should be i64 here.

https://github.com/llvm/llvm-project/pull/207662