[GHC] #10491: Regression, simplifier explosion with Accelerate, cannot compile, increasing tick factor is not a workaround

[GHC]

#10491: Regression, simplifier explosion with Accelerate, cannot compile,
increasing tick factor is not a workaround
-------------------------------------+-------------------------------------
        Reporter:  robertce          |                   Owner:
            Type:  bug               |                  Status:  new
        Priority:  highest           |               Milestone:  7.10.2
       Component:  Compiler          |                 Version:  7.10.1
      Resolution:                    |                Keywords:
Operating System:  Unknown/Multiple  |            Architecture:
 Type of failure:  Compile-time      |  Unknown/Multiple
  performance bug                    |               Test Case:
      Blocked By:                    |                Blocking:
 Related Tickets:                    |  Differential Revisions:
-------------------------------------+-------------------------------------

Comment (by George):

 I think something needs to be changed. AFAIK, there is no documentation
 that it is order dependent. A language that is not order dependent should
 not have command line options that are! As a minimum if -O2 and
 -fno<something> means -f<something> and -fno<something> and some remaining
 -f<options> then the user should get an error message if the order is
 "wrong" and no error message if the order is right, i.e. -fno<something>
 wins. At least, this is what I think off the top of my head from my naive
 viewpoint.

 I believe there is a ticket for an ER or task to improve command line
 options. I'll try to find it.

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10491#comment:31>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler