[Bug c/93811] __builtin___clear_cache() is a noop on powerpc (which is incorrect)

[anton at mips dot complang.tuwien.ac.at]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93811

--- Comment #1 from anton at mips dot complang.tuwien.ac.at ---
Created attachment 47870
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=47870&action=edit
Disassembly output for demonstration file