[GHC] #12603: INLINE and manually inlining produce different code

[GHC]

#12603: INLINE and manually inlining produce different code
-------------------------------------+-------------------------------------
        Reporter:  bgamari           |                Owner:  (none)
            Type:  bug               |               Status:  closed
        Priority:  high              |            Milestone:  8.2.1
       Component:  Compiler          |              Version:  8.0.1
      Resolution:  fixed             |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  Runtime           |  Unknown/Multiple
  performance bug                    |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:  #12747 #12781     |  Differential Rev(s):
       Wiki Page:                    |
-------------------------------------+-------------------------------------

Comment (by MikolajKonarski):

 I've checked the original big project with GHC 8.2.1-rc1 and based on non-
 scientific benchmarks, the problem is gone. BTW, the program also runs
 ~10% faster vs GHC 8.0.1, but I can't rule out it's caused by new versions
 of other packages, not just GHC.

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/12603#comment:38>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler