Michael Gottesman c54fb33911 [opt-remark] Infer the source loc retain, release even if they have non-inlined locs. ...

The reason why is that due to ARCCodeMotion, they could have moved enough that
the SourceLoc on them is incorrect. That is why you can see in the tests that I
had to update, I am moving the retain to the return statement from the body of
the function since the retain was now right before the return.

I also went in and cleaned up the logic here a little bit. What we do now is
that we have a notion of instructions that we /always/ infer SourceLocs for (rr)
and ones that if we have a valid non-inlined location we use (e.x.:
allocations).

This mucked a little bit with my ability to run SIL tests since the SIL tests
were relying on this not happening to rr so that we would emit remarks on the rr
instructions themselves. I added an option that disables the always infer
behavior for this test.

That being said at this point to me it seems like the SourceLoc inference stuff
is really tied to OptRemarkGenerator and I am going to see if I can move it to
there. But that is for a future commit on another day.

2020-09-04 20:13:24 -07:00

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