X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=compiler%2Fcmm%2FCmmCvt.hs;h=4d413257bed6a6ca260c837032bce89c1e34f173;hb=7fc01c4671980ea3c66d549c0ece4d82fd3f5ade;hp=da770636b438ebbb2bb05381df1a76816779de30;hpb=d436c70d43fb905c63220040168295e473f4b90a;p=ghc-hetmet.git

diff --git a/compiler/cmm/CmmCvt.hs b/compiler/cmm/CmmCvt.hs
index da77063..4d41325 100644
--- a/compiler/cmm/CmmCvt.hs
+++ b/compiler/cmm/CmmCvt.hs
@@ -6,7 +6,6 @@ where
 
 import BlockId
 import Cmm
-import CmmExpr
 import MkZipCfgCmm hiding (CmmGraph)
 import ZipCfgCmmRep -- imported for reverse conversion
 import CmmZipUtil
@@ -14,13 +13,10 @@ import PprCmm()
 import qualified ZipCfg as G
 
 import FastString
-import Monad
+import Control.Monad
 import Outputable
-import Panic
 import UniqSupply
 
-import Maybe
-
 cmmToZgraph :: GenCmm d h (ListGraph CmmStmt) -> UniqSM (GenCmm d h (CmmStackInfo, CmmGraph))
 cmmOfZgraph :: GenCmm d h (CmmStackInfo, CmmGraph)          ->         GenCmm d h (ListGraph CmmStmt)
 
@@ -119,6 +115,7 @@ ofZgraph g = ListGraph $ swallow blocks
           mid (MidComment s)  = CmmComment s
           mid (MidAssign l r) = CmmAssign l r
           mid (MidStore  l r) = CmmStore  l r
+          mid (MidForeignCall _ (PrimTarget MO_Touch) _ _) = CmmNop
           mid (MidForeignCall _ target ress args)
 		= CmmCall (cmm_target target)
 			  (add_hints conv Results   ress)