X-Git-Url: http://git.megacz.com/?p=ghc-hetmet.git;a=blobdiff_plain;f=compiler%2FcodeGen%2FCgCon.lhs;h=87680087764f3aa094dce3fc75bc081a11876f82;hp=89a4e84400be7b40fe0c31edf43463d93aaafba8;hb=f8f0e76ad302fda30196ebc9230e5fcbc97be537;hpb=a02e7f40afc1aab7fe466f949f505c1d7250713d

diff --git a/compiler/codeGen/CgCon.lhs b/compiler/codeGen/CgCon.lhs
index 89a4e84..8768008 100644
--- a/compiler/codeGen/CgCon.lhs
+++ b/compiler/codeGen/CgCon.lhs
@@ -32,8 +32,8 @@ import CgTicky
 import CgInfoTbls
 import CLabel
 import ClosureInfo
-import CmmUtils
-import Cmm
+import OldCmmUtils
+import OldCmm
 import SMRep
 import CostCentre
 import Constants
@@ -165,9 +165,17 @@ which is guaranteed in range.
 
 Because of this, we use can safely return an addressing mode.
 
+We don't support this optimisation when compiling into Windows DLLs yet
+because they don't support cross package data references well.
+
 \begin{code}
+
+
 buildDynCon binder _ con [arg_amode]
   | maybeIntLikeCon con 
+#if defined(mingw32_TARGET_OS)
+  , not opt_PIC
+#endif
   , (_, CmmLit (CmmInt val _)) <- arg_amode
   , let val_int = (fromIntegral val) :: Int
   , val_int <= mAX_INTLIKE && val_int >= mIN_INTLIKE
@@ -179,6 +187,9 @@ buildDynCon binder _ con [arg_amode]
 
 buildDynCon binder _ con [arg_amode]
   | maybeCharLikeCon con 
+#if defined(mingw32_TARGET_OS)
+  , not opt_PIC
+#endif
   , (_, CmmLit (CmmInt val _)) <- arg_amode
   , let val_int = (fromIntegral val) :: Int
   , val_int <= mAX_CHARLIKE && val_int >= mIN_CHARLIKE
@@ -187,6 +198,7 @@ buildDynCon binder _ con [arg_amode]
 		-- CHARLIKE closures consist of a header and one word payload
 	      charlike_amode = CmmLit (cmmLabelOffW charlike_lbl offsetW)
 	; returnFC (taggedStableIdInfo binder charlike_amode (mkConLFInfo con) con) }
+
 \end{code}
 
 Now the general case.