Remove code that is dead now that we need >= 6.12 to build

[ghc-hetmet.git] / compiler / cmm / CmmCvt.hs

diff --git a/compiler/cmm/CmmCvt.hs b/compiler/cmm/CmmCvt.hs
index da77063..4d41325 100644 (file)
--- 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)