[GHC] #1012: ghc panic with mutually recursive modules and template haskell

[GHC]

#1012: ghc panic with mutually recursive modules and template haskell
----------------------------+-----------------------------------------------
 Reporter:  guest           |          Owner:          
     Type:  merge           |         Status:  reopened
 Priority:  normal          |      Milestone:  _|_     
Component:  Compiler        |        Version:  6.6     
 Severity:  normal          |     Resolution:          
 Keywords:                  |     Difficulty:  Unknown 
 Testcase:  TH_import_loop  |   Architecture:  Multiple
       Os:  Multiple        |  
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Comment (by fons):

 curiously enough compiling the following module doesn't cuase any
 problems.

 Main.hs
 {{{
 module Main where

 import ModuleB

 main = return ()

 }}}

 {{{
 $ ghc --make Main.hs
 [1 of 5] Compiling ModuleA[boot]    ( ModuleA.hs-boot, ModuleA.o-boot )
 [2 of 5] Compiling ModuleC          ( ModuleC.hs, ModuleC.o )
 [3 of 5] Compiling ModuleA          ( ModuleA.hs, ModuleA.o )
 [4 of 5] Compiling ModuleB          ( ModuleB.hs, ModuleB.o )
 Loading package base ... linking ... done.
 Loading package array-0.1.0.0 ... linking ... done.
 Loading package packedstring-0.1.0.0 ... linking ... done.
 Loading package containers-0.1.0.0 ... linking ... done.
 Loading package pretty-1.0.0.0 ... linking ... done.
 Loading package template-haskell ... linking ... done.
 [5 of 5] Compiling Main             ( Main.hs, Main.o )
 Linking Main ...
 }}}

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/1012#comment:6>
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