[Bug testsuite/116080] [15 regression] New tests from r15-2233-g8d1af8f904a0c0 fail

[andi-gcc at firstfloor dot org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116080

--- Comment #8 from Andi Kleen <andi-gcc at firstfloor dot org> ---
Patch was reverted, it just made a bunch of tests unsupported.

problems:
- Need unique name for each new test to not confuse the caching
- -O0 tests need to use musttail explictly because the musttail pass
only handles musttail annotated returns.