[llvm] [X86] EltsFromConsecutiveLoads - recognise reverse load patterns. (PR #168706)

[Sharjeel Khan via llvm-commits]

Sharjeel-Khan wrote:

Based on my testing, this PR also caused slow compilation in Android as seen in https://github.com/llvm/llvm-project/issues/170546#issuecomment-3613577566. Let me know if a fix lands because I am doing a local revert because our x86_64 build is timing out.

https://github.com/llvm/llvm-project/pull/168706