[Bug testsuite/103324] RFE: Add a `make quickcheck` or `make smoketest` Makefile target to allow only running a portion of the testsuite

[egallager at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103324

--- Comment #4 from Eric Gallager <egallager at gcc dot gnu.org> ---
Another thing that would be useful would be to have (more) comments in the
source code saying stuff like "/* this codepath is tested by <testcasefilename>
*/" or something... although I guess it could be a problem keeping them in
sync...