[Bug tree-optimization/124875] [16 Regression] wrong code due to code hoisting/aliasing in llvm-22.1.2 since r16-8128

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=124875

--- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> ---
Created attachment 64199
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=64199&action=edit
patch

This is now a testcase for the alias-set comparison code I removed.  I have a
patch re-instantiating this in prefer() which resolves the testcase.