The LIT test cases were migrated with the script provided by
Nikita Popov. Due to the size of the change it is split into
several parts.
Reviewed By: nemanja, amyk, nikic, PowerPC
Differential Revision: https://reviews.llvm.org/D135470
PowerPC has its custom scheduler heuristic. It calls parent classes'
tryCandidate in override version, but the function returns void, so this
way doesn't actually help. This patch duplicates code from base scheduler
into PPC machine scheduler class, which does what we wanted.
Reviewed By: steven.zhang
Differential Revision: https://reviews.llvm.org/D94464
Update CodeGen regression tests with marker at first line telling it's
auto-generated by the script, under PowerPC directory. For some reason,
these tests are generated but manually written, which makes things
unclear when someone's change affecting them.
However, some tests only show simple change after re-generated, like
extra blank lines, disappearing '.localentry', etc. Besides, some tests
are generated but added checks for debug output. This commit doesn't try
updating them.
