[Haskell-cafe] Profiling analyzing ghc compilation

[Benjamin Maurer]

There is also `|-ddump-timings| 
<https://downloads.haskell.org/~ghc/9.0.1/docs/html/users_guide/debugging.html#ghc-flag--ddump-timings>` 
(see 
https://downloads.haskell.org/~ghc/9.0.1/docs/html/users_guide/flags.html#compiler-debugging-options), 
which seems to print a subset of what `-dshow-passes` prints?

If I ever have time, I'd love to make something like Clang's 
`time-trace` functionality, i.e., printing per-file pass timings in 
Chrome tracing profiling format, so that one can get pretty flame 
graphs. 
(https://aras-p.info/blog/2019/01/16/time-trace-timeline-flame-chart-profiler-for-Clang/)
The data already seems to be there. Maybe someone else gets to it before 
me =)

Cheers,
Ben
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