[GHC] #15929: Explore whether adding XRay attributes to LLVM IR is worthwhile

[GHC]

#15929: Explore whether adding XRay attributes to LLVM IR is worthwhile
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           Reporter:  mpickering     |             Owner:  (none)
               Type:  task           |            Status:  new
           Priority:  normal         |         Milestone:  8.6.3
          Component:  Compiler       |           Version:  8.6.2
           Keywords:                 |  Operating System:  Unknown/Multiple
       Architecture:                 |   Type of failure:  None/Unknown
  Unknown/Multiple                   |
          Test Case:                 |        Blocked By:
           Blocking:                 |   Related Tickets:
Differential Rev(s):                 |         Wiki Page:
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 LLVM has support for XRay which is a tracing framework developed by
 Google. It might be possible to add the relevant function attributes to
 the IR we generate to get access to detailed traces which can be analysed
 using existing tooling.


 https://llvm.org/docs/XRay.html

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/15929>
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