[Bug target/77729] aarch64 inserts unneeded uxtb after ldrb, orr ...32

["jak at jak-linux dot org" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77729

--- Comment #6 from Julian Andres Klode <jak@jak-linux.org> ---
(In reply to Andrew Pinski from comment #4)
> Note this testcase needs to be improved as I have a patch which converts a
> switch with just one case and a default into anew if statement.

FWIW, The issue is exactly the same with if statements, like in:

int TrieCase3(const char *string)
{
    if((string[0] | 32) == 't') {
        if((string[1] | 32) == 'a') {
            if((string[2] | 32) == 'g') {
                return 42;
            }
        }
    }
    return -1;
}