[llvm] [AArch64] Optimize when storing symmetry constants (PR #93717)

[David Green via llvm-commits]

https://github.com/davemgreen commented:

Thanks - from what I can tell this looks OK now, it's looking good.

I believe that because the two operands are equal this will work for big-endian as well as little endian. Does that sound correct?

https://github.com/llvm/llvm-project/pull/93717