Re: [GHC] #9370: unfolding info as seen when building a module depends on flags in a previously-compiled module

4 Aug 2014

      #9370: unfolding info as seen when building a module depends on flags in a
previously-compiled module
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              Reporter:  carter      |            Owner:
                  Type:  bug         |           Status:  new
              Priority:  high        |        Milestone:  7.10.1
             Component:  Compiler    |          Version:  7.8.3
            Resolution:              |         Keywords:
      Operating System:              |     Architecture:  Unknown/Multiple
  Unknown/Multiple                   |       Difficulty:  Unknown
       Type of failure:  Compile-    |       Blocked By:
  time performance bug               |  Related Tickets:
             Test Case:              |
              Blocking:              |
Differential Revisions:              |
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Comment (by rwbarton):

 In the case that originated this ticket, yes. In general, the bug is that
 whether we obey INLINE pragmas in an imported module M depends not just on
 the optimization flags in effect for the module we are currently
 compiling, but also on the optimization flags that were in effect for the
 first module in this `ghc --make` invocation that imported M. (Or that
 caused GHC to load the interface file for M for any reason, if that ever
 happens other than because M was imported.)

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Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9370#comment:17
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