[GHC] #4505: Segmentation fault on long input (list of pairs)

[GHC]

#4505: Segmentation fault on long input (list of pairs)
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        Reporter:  cathper           |                Owner:  (none)
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  7.0.1
      Resolution:                    |             Keywords:  Segmentation
                                     |  fault, segfault, long input
Operating System:  Unknown/Multiple  |         Architecture:  x86_64
 Type of failure:  GHC rejects       |  (amd64)
  valid program                      |            Test Case:
      Blocked By:  4258              |             Blocking:
 Related Tickets:                    |  Differential Rev(s):  Phab:D1180
       Wiki Page:                    |
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Comment (by michaelpj):

 I ran into this recently when attempting to embed some static data into a
 program from a Core plugin.

 Having found
 http://hackage.haskell.org/package/ghc-8.4.3/docs/MkCore.html#v:mkWordExpr
 I thought I could sneak a bytestring in as a list of word expressions -
 which triggered this issue when the list got long enough. Again, this does
 only trigger when compiling without -O, but people do occasionally do
 that.

 I worked around it by essentially mimicing what `fileEmbed` does to make a
 bytestring literal in TH (http://hackage.haskell.org/package/file-
 embed-0.0.11/docs/src/Data.FileEmbed.html#bsToExp), but this is somewhat
 clumsy as you have to rely on having the `ByteString` names around.

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/4505#comment:53>
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