From 26f8466507bd9383e0a7d1e62e397eca4a13822a Mon Sep 17 00:00:00 2001
From: Sergei Trofimovich <slyfox@gentoo.org>
Date: Tue, 13 Nov 2012 01:39:14 +0300
Subject: [PATCH] Fix unaligned access on alpha and friends (ticket #7339)

Assume unknown arch (alpha and mips) an alignment sensitive target.
Otherwise on alpha it causes ghc-7.4.1 to generate invalud lexers.

Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>
---
 compiler/cmm/PprC.hs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/compiler/cmm/PprC.hs b/compiler/cmm/PprC.hs
index 21826f8..8cdcde6 100644
--- a/compiler/cmm/PprC.hs
+++ b/compiler/cmm/PprC.hs
@@ -963,6 +963,7 @@ cLoad platform expr rep
  | otherwise
     = char '*' <> parens (cCast platform (machRepPtrCType rep) expr)
     where -- On these platforms, unaligned loads are known to cause problems
+          bewareLoadStoreAlignment ArchUnknown  = True -- like alpha or mips
           bewareLoadStoreAlignment (ArchARM {}) = True
           bewareLoadStoreAlignment _            = False
 
-- 
1.8.0