[GHC] #8083: setNumCapabilities broken in HEAD

[GHC]

#8083: setNumCapabilities broken in HEAD
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        Reporter:  parcs                        |            Owner:
            Type:  bug                          |  simonmar
        Priority:  highest                      |           Status:  new
       Component:  Runtime System               |        Milestone:  7.8.1
      Resolution:                               |          Version:  7.7
Operating System:  Unknown/Multiple             |         Keywords:
 Type of failure:  Incorrect result at runtime  |     Architecture:
       Test Case:  T8083                        |  Unknown/Multiple
        Blocking:                               |       Difficulty:
                                                |  Unknown
                                                |       Blocked By:
                                                |  Related Tickets:
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Comment (by marlowsd@…):

 commit c23488590cd65fa584ddd648cdbab2fa13f5656b
 {{{
 Author: Simon Marlow <marlowsd at gmail.com>
 Date:   Wed Jul 24 12:49:58 2013 +0100

     Fix a bug in stack layout with safe foreign calls (#8083)

     We weren't properly tracking the number of stack arguments in the
     continuation of a foreign call.  It happened to work when the
     continuation was not a join point, but when it was a join point we
     were using the wrong amount of stack fixup.

  compiler/cmm/CmmCommonBlockElim.hs |    2 +-
  compiler/cmm/CmmLayoutStack.hs     |   15 ++++++++-------
  compiler/cmm/CmmLint.hs            |    2 +-
  compiler/cmm/CmmNode.hs            |   11 ++++++-----
  compiler/cmm/CmmPipeline.hs        |    6 ++----
  compiler/cmm/PprCmm.hs             |    5 +++--
  compiler/codeGen/StgCmmForeign.hs  |    3 ++-
  7 files changed, 23 insertions(+), 21 deletions(-)
 }}}

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8083#comment:10>
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