[GHC] #15068: Small number of test case failures on Ubuntu Bionic (GCC 7.3)

[GHC]

#15068: Small number of test case failures on Ubuntu Bionic (GCC 7.3)
-------------------------------------+-------------------------------------
        Reporter:  jrp               |                Owner:  (none)
            Type:  bug               |               Status:  merge
        Priority:  highest           |            Milestone:  8.6.1
       Component:  Compiler          |              Version:  8.4.1
  (CodeGen)                          |
      Resolution:  fixed             |             Keywords:
Operating System:  Linux             |         Architecture:  x86_64
                                     |  (amd64)
 Type of failure:  Incorrect result  |            Test Case:  T13658
  at runtime                         |  T14779a T14779b T14868 debug
                                     |  parsing001
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):  Phab:D4654
       Wiki Page:                    |
-------------------------------------+-------------------------------------

Comment (by svenpanne):

 Replying to [comment:28 vanessamchale]:
 > >Stack is by far the most popular way to install GHC
 >
 > I don't think that's true.

 See http://taylor.fausak.me/2017/11/15/2017-state-of-haskell-survey-
 results/#question-15, if you've got more plausible/recent numbers, I would
 be interested to see them.

 > > stack is far more popular as a build tool than cabal
 >
 > You can use the system GHC with stack, as mentioned above.

 I think you totally miss the point here: Of course you could do that, but
 one of the main points of `stack`'s popularity is that you don't need to
 do that: All you need for a happy Haskell life is to install a single tool
 (stack), which pulls in other tools/compilers/packages as needed.

 > > indicate that this problem is a show stopper for 8.4.2
 >
 > This is not true.

 In all companies I've worked so far, "crashing/not working on common
 platforms" ''is'' a definition of show stopper.

 >
 > > I worry more about the average/wannabe Haskell user
 >
 > If for whatever reason they are constrained to using stack on Ubuntu
 without using the system GHC, they can use the latest LTS snapshot.

 Telling people: "I've got buggy new SW, just use older one" is not really
 productive.

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/15068#comment:30>
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