[GHC] #7640: Crash in stg_ap_p_fast on ARM on executable output by registerised/LLVM cross compiler

[GHC]

#7640: Crash in stg_ap_p_fast on ARM on executable output by registerised/LLVM
cross compiler
----------------------------------+-----------------------------------------
    Reporter:  StephenBlackheath  |       Owner:                  
        Type:  bug                |      Status:  new             
    Priority:  normal             |   Milestone:                  
   Component:  Compiler (LLVM)    |     Version:  7.7             
    Keywords:                     |          Os:  Unknown/Multiple
Architecture:  arm                |     Failure:  Runtime crash   
  Difficulty:  Unknown            |    Testcase:                  
   Blockedby:                     |    Blocking:  7623            
     Related:                     |  
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Changes (by simonmar):

  * difficulty:  => Unknown


Comment:

 This might be another symptom of these bugs I fixed yesterday:

 {{{
 commit 490920583817a650e45956025fce64af2ea1bb92
 Author: Simon Marlow <marlowsd at gmail.com>
 Date:   Wed Jan 30 15:42:01 2013 +0000

     We should be including HaskellMachRegs.h here, not RtsMachRegs.h

     This was causing GenApply.hs to use the host architecture's register
     settings rather than the target's, with the result that some
     cross-compiled programs would crash.

 commit a217e7a27a8d48095e2e276ed07a203254bf8743
 Author: Simon Marlow <marlowsd at gmail.com>
 Date:   Wed Jan 30 19:40:07 2013 +0000

     include "stg/MachRegs.h" -> include "MachRegs.h"

     We were getting the installed compiler's MachRegs.h sometimes (in
     GenApply.hs, as it turns out).  This probably caused some weird
     effects...
 }}}

 these were causing similar kinds of crashes with an RPi cross compiler.

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7640#comment:5>
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