[GHC] #12621: zeromq4-haskell fails on PowerPC 64-bit

[GHC]

#12621: zeromq4-haskell fails on PowerPC 64-bit
---------------------------------------+----------------------------------
        Reporter:  trommler            |                Owner:  trommler
            Type:  bug                 |               Status:  patch
        Priority:  normal              |            Milestone:  8.0.3
       Component:  Compiler            |              Version:  8.0.1
      Resolution:                      |             Keywords:
Operating System:  Linux               |         Architecture:  powerpc64
 Type of failure:  Compile-time crash  |            Test Case:
      Blocked By:                      |             Blocking:
 Related Tickets:                      |  Differential Rev(s):  Phab:D2547
       Wiki Page:                      |
---------------------------------------+----------------------------------

Comment (by Ben Gamari <ben@…>):

 In [changeset:"ce3370e06165690e79a8eb22e5229b515157e00f/ghc"
 ce3370e0/ghc]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="ce3370e06165690e79a8eb22e5229b515157e00f"
 PPC/CodeGen: fix lwa instruction generation

 Opcode lwa is a 64-bit opcode and allows a DS-form only.  This patch
 generates lwa opcodes only when the offset is a multiple of 4.

 Fixes #12621

 Test Plan: validate

 Reviewers: erikd, hvr, simonmar, austin, bgamari

 Reviewed By: bgamari

 Subscribers: thomie

 Differential Revision: https://phabricator.haskell.org/D2547

 GHC Trac Issues: #12621
 }}}

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/12621#comment:3>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler