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

[Dmitri Gribenko via llvm-commits]

gribozavr wrote:

We have identified (but not reduced) another miscompilation. Thank you @vitalybuka for posting the details of this bootstrap failure. I will be reverting the commit now.

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