[project @ 2004-08-13 10:45:16 by simonmar]

[ghc-hetmet.git] / ghc / rts / StgMiscClosures.hc

diff --git a/ghc/rts/StgMiscClosures.hc b/ghc/rts/StgMiscClosures.hc
index 38f66c6..8bf5dbb 100644 (file)
--- a/ghc/rts/StgMiscClosures.hc
+++ b/ghc/rts/StgMiscClosures.hc
@@ -1,7 +1,7 @@
 /* -----------------------------------------------------------------------------
 /* -----------------------------------------------------------------------------

- * $Id: StgMiscClosures.hc,v 1.77 2002/07/18 06:05:30 sof Exp $
+ * $Id: StgMiscClosures.hc,v 1.85 2003/05/14 09:14:00 simonmar Exp $

  *
  *

- * (c) The GHC Team, 1998-2000
+ * (c) The GHC Team, 1998-2002

  *
  * Entry code for various built-in closure types.
  *
  *
  * Entry code for various built-in closure types.
  *

@@ -36,14 +36,12 @@
   Template for the entry code of non-enterable closures.
 */
 
   Template for the entry code of non-enterable closures.
 */
 

-#define NON_ENTERABLE_ENTRY_CODE(type)                                 \
-STGFUN(stg_##type##_entry)                                                     \
-{                                                                      \
-  FB_                                                                  \
-    DUMP_ERRMSG(#type " object entered!\n");                            \
-    STGCALL1(shutdownHaskellAndExit, EXIT_FAILURE);                    \
-    return NULL;                                                       \
-  FE_                                                                  \
+#define NON_ENTERABLE_ENTRY_CODE(type)         \
+IF_(stg_##type##_entry)                        \
+{                                              \
+  FB_                                          \
+    STGCALL1(barf, #type " object entered!");  \
+  FE_                                          \

 }
 
 
 }
 
 

@@ -106,190 +104,159 @@ FN_(stg_interp_constr8_entry) { FB_ JMP_(RET_VEC((P_)(*Sp),7)); FE_ }
    haven't got a good story about that yet.
 */
 
    haven't got a good story about that yet.
 */
 

-/* When the returned value is in R1 and it is a pointer, so doesn't
-   need tagging ... */
-#define STG_CtoI_RET_R1p_Template(label)       \
-   IFN_(label)                         \
-   {                                    \
-      StgPtr bco;                       \
-      FB_                              \
-      bco = ((StgPtr*)Sp)[1];           \
-      Sp -= 1;                         \
-      ((StgPtr*)Sp)[0] = R1.p;         \
-      Sp -= 1;                         \
-      ((StgPtr*)Sp)[0] = bco;          \
-      JMP_(stg_yield_to_interpreter);   \
-      FE_                               \
+// When the returned value is a pointer in R1...
+#define STG_CtoI_RET_R1p_Template(label)       \
+   IF_(label)                                  \
+   {                                           \
+      FB_                                      \
+      Sp -= 2;                                 \
+      Sp[1] = R1.w;                            \
+      Sp[0] = (W_)&stg_enter_info;             \
+      JMP_(stg_yield_to_interpreter);          \
+      FE_                                      \

    }
 
    }
 

-STG_CtoI_RET_R1p_Template(stg_ctoi_ret_R1p_entry);
-STG_CtoI_RET_R1p_Template(stg_ctoi_ret_R1p_0_entry);
-STG_CtoI_RET_R1p_Template(stg_ctoi_ret_R1p_1_entry);
-STG_CtoI_RET_R1p_Template(stg_ctoi_ret_R1p_2_entry);
-STG_CtoI_RET_R1p_Template(stg_ctoi_ret_R1p_3_entry);
-STG_CtoI_RET_R1p_Template(stg_ctoi_ret_R1p_4_entry);
-STG_CtoI_RET_R1p_Template(stg_ctoi_ret_R1p_5_entry);
-STG_CtoI_RET_R1p_Template(stg_ctoi_ret_R1p_6_entry);
-STG_CtoI_RET_R1p_Template(stg_ctoi_ret_R1p_7_entry);
-
-VEC_POLY_INFO_TABLE(stg_ctoi_ret_R1p,0, NULL/*srt*/, 0/*srt_off*/, 0/*srt_len*/, RET_BCO,, EF_);
-
-
-
-/* When the returned value is in R1 and it isn't a pointer. */
-#define STG_CtoI_RET_R1n_Template(label)       \
-   IFN_(label)                         \
-   {                                    \
-      StgPtr bco;                       \
-      FB_                              \
-      bco = ((StgPtr*)Sp)[1];           \
-      Sp -= 1;                         \
-      ((StgPtr*)Sp)[0] = (StgPtr)R1.i; \
-      Sp -= 1;                          \
-      ((StgPtr*)Sp)[0] = (StgPtr)1; /* tag */   \
-      Sp -= 1;                         \
-      ((StgPtr*)Sp)[0] = bco;          \
-      JMP_(stg_yield_to_interpreter);   \
-      FE_                               \
-   }
-
-STG_CtoI_RET_R1n_Template(stg_ctoi_ret_R1n_entry);
-STG_CtoI_RET_R1n_Template(stg_ctoi_ret_R1n_0_entry);
-STG_CtoI_RET_R1n_Template(stg_ctoi_ret_R1n_1_entry);
-STG_CtoI_RET_R1n_Template(stg_ctoi_ret_R1n_2_entry);
-STG_CtoI_RET_R1n_Template(stg_ctoi_ret_R1n_3_entry);
-STG_CtoI_RET_R1n_Template(stg_ctoi_ret_R1n_4_entry);
-STG_CtoI_RET_R1n_Template(stg_ctoi_ret_R1n_5_entry);
-STG_CtoI_RET_R1n_Template(stg_ctoi_ret_R1n_6_entry);
-STG_CtoI_RET_R1n_Template(stg_ctoi_ret_R1n_7_entry);
-
-VEC_POLY_INFO_TABLE(stg_ctoi_ret_R1n,0, NULL/*srt*/, 0/*srt_off*/, 0/*srt_len*/, RET_BCO,, EF_);
-
-
-
-/* When the returned value is in F1 ... */
-#define STG_CtoI_RET_F1_Template(label)        \
-   IFN_(label)                         \
-   {                                    \
-      StgPtr bco;                       \
-      FB_                              \
-      bco = ((StgPtr*)Sp)[1];           \
-      Sp -= sizeofW(StgFloat);         \
-      ASSIGN_FLT((W_*)Sp, F1);          \
-      Sp -= 1;                          \
-      ((StgPtr*)Sp)[0] = (StgPtr)sizeofW(StgFloat); \
-      Sp -= 1;                         \
-      ((StgPtr*)Sp)[0] = bco;          \
-      JMP_(stg_yield_to_interpreter);   \
-      FE_                               \
-   }
-
-STG_CtoI_RET_F1_Template(stg_ctoi_ret_F1_entry);
-STG_CtoI_RET_F1_Template(stg_ctoi_ret_F1_0_entry);
-STG_CtoI_RET_F1_Template(stg_ctoi_ret_F1_1_entry);
-STG_CtoI_RET_F1_Template(stg_ctoi_ret_F1_2_entry);
-STG_CtoI_RET_F1_Template(stg_ctoi_ret_F1_3_entry);
-STG_CtoI_RET_F1_Template(stg_ctoi_ret_F1_4_entry);
-STG_CtoI_RET_F1_Template(stg_ctoi_ret_F1_5_entry);
-STG_CtoI_RET_F1_Template(stg_ctoi_ret_F1_6_entry);
-STG_CtoI_RET_F1_Template(stg_ctoi_ret_F1_7_entry);
-
-VEC_POLY_INFO_TABLE(stg_ctoi_ret_F1,0, NULL/*srt*/, 0/*srt_off*/, 0/*srt_len*/, RET_BCO,, EF_);
-
-
-/* When the returned value is in D1 ... */
-#define STG_CtoI_RET_D1_Template(label)        \
-   IFN_(label)                         \
-   {                                    \
-      StgPtr bco;                       \
-      FB_                              \
-      bco = ((StgPtr*)Sp)[1];           \
-      Sp -= sizeofW(StgDouble);                \
-      ASSIGN_DBL((W_*)Sp, D1);          \
-      Sp -= 1;                          \
-      ((StgPtr*)Sp)[0] = (StgPtr)sizeofW(StgDouble); \
-      Sp -= 1;                         \
-      ((StgPtr*)Sp)[0] = bco;          \
-      JMP_(stg_yield_to_interpreter);   \
-      FE_                               \
-   }
-
-STG_CtoI_RET_D1_Template(stg_ctoi_ret_D1_entry);
-STG_CtoI_RET_D1_Template(stg_ctoi_ret_D1_0_entry);
-STG_CtoI_RET_D1_Template(stg_ctoi_ret_D1_1_entry);
-STG_CtoI_RET_D1_Template(stg_ctoi_ret_D1_2_entry);
-STG_CtoI_RET_D1_Template(stg_ctoi_ret_D1_3_entry);
-STG_CtoI_RET_D1_Template(stg_ctoi_ret_D1_4_entry);
-STG_CtoI_RET_D1_Template(stg_ctoi_ret_D1_5_entry);
-STG_CtoI_RET_D1_Template(stg_ctoi_ret_D1_6_entry);
-STG_CtoI_RET_D1_Template(stg_ctoi_ret_D1_7_entry);
-
-VEC_POLY_INFO_TABLE(stg_ctoi_ret_D1,0, NULL/*srt*/, 0/*srt_off*/, 0/*srt_len*/, RET_BCO,, EF_);
-
-
-/* When the returned value a VoidRep ... */
-#define STG_CtoI_RET_V_Template(label)         \
-   IFN_(label)                         \
-   {                                    \
-      StgPtr bco;                       \
-      FB_                              \
-      bco = ((StgPtr*)Sp)[1];           \
-      Sp -= 1;                          \
-      ((StgPtr*)Sp)[0] = 0; /* VoidRep tag */ \
-      Sp -= 1;                         \
-      ((StgPtr*)Sp)[0] = bco;          \
-      JMP_(stg_yield_to_interpreter);   \
-      FE_                               \
-   }
-
-STG_CtoI_RET_V_Template(stg_ctoi_ret_V_entry);
-STG_CtoI_RET_V_Template(stg_ctoi_ret_V_0_entry);
-STG_CtoI_RET_V_Template(stg_ctoi_ret_V_1_entry);
-STG_CtoI_RET_V_Template(stg_ctoi_ret_V_2_entry);
-STG_CtoI_RET_V_Template(stg_ctoi_ret_V_3_entry);
-STG_CtoI_RET_V_Template(stg_ctoi_ret_V_4_entry);
-STG_CtoI_RET_V_Template(stg_ctoi_ret_V_5_entry);
-STG_CtoI_RET_V_Template(stg_ctoi_ret_V_6_entry);
-STG_CtoI_RET_V_Template(stg_ctoi_ret_V_7_entry);
+STG_CtoI_RET_R1p_Template(stg_ctoi_ret_R1p_ret);
+STG_CtoI_RET_R1p_Template(stg_ctoi_ret_R1p_0_ret);
+STG_CtoI_RET_R1p_Template(stg_ctoi_ret_R1p_1_ret);
+STG_CtoI_RET_R1p_Template(stg_ctoi_ret_R1p_2_ret);
+STG_CtoI_RET_R1p_Template(stg_ctoi_ret_R1p_3_ret);
+STG_CtoI_RET_R1p_Template(stg_ctoi_ret_R1p_4_ret);
+STG_CtoI_RET_R1p_Template(stg_ctoi_ret_R1p_5_ret);
+STG_CtoI_RET_R1p_Template(stg_ctoi_ret_R1p_6_ret);
+STG_CtoI_RET_R1p_Template(stg_ctoi_ret_R1p_7_ret);
+
+VEC_POLY_INFO_TABLE( stg_ctoi_ret_R1p, 0/* special layout */,
+                    0/*srt*/, 0/*srt_off*/, 0/*srt_bitmap*/, 
+                    RET_BCO,, EF_);
+
+// When the returned value is a pointer, but unlifted, in R1 ...
+INFO_TABLE_RET( stg_ctoi_ret_R1unpt_info, stg_ctoi_ret_R1unpt_entry,
+               0/* special layout */,
+               0/*srt*/, 0/*srt_off*/, 0/*srt_bitmap*/, RET_BCO,, IF_, 0, 0);
+IF_(stg_ctoi_ret_R1unpt_entry)
+{
+   FB_
+   Sp -= 2;
+   Sp[1] = R1.w;
+   Sp[0] = (W_)&stg_gc_unpt_r1_info;
+   JMP_(stg_yield_to_interpreter);
+   FE_
+}

 
 

-VEC_POLY_INFO_TABLE(stg_ctoi_ret_V,0, NULL/*srt*/, 0/*srt_off*/, 0/*srt_len*/, RET_BCO,, EF_);
+// When the returned value is a non-pointer in R1 ...
+INFO_TABLE_RET( stg_ctoi_ret_R1n_info, stg_ctoi_ret_R1n_entry,
+               0/* special layout */,
+               0/*srt*/, 0/*srt_off*/, 0/*srt_bitmap*/, RET_BCO,, IF_, 0, 0);
+IF_(stg_ctoi_ret_R1n_entry)
+{
+   FB_
+   Sp -= 2;
+   Sp[1] = R1.w;
+   Sp[0] = (W_)&stg_gc_unbx_r1_info;
+   JMP_(stg_yield_to_interpreter);
+   FE_
+}

 
 
 
 

-/* The other way round: when the interpreter returns a value to
-   compiled code.  The stack looks like this:
+// When the returned value is in F1 ...
+INFO_TABLE_RET( stg_ctoi_ret_F1_info, stg_ctoi_ret_F1_entry, 
+               0/* special layout */,
+               0/*srt*/, 0/*srt_off*/, 0/*srt_bitmap*/, RET_BCO,, IF_, 0, 0);
+IF_(stg_ctoi_ret_F1_entry)
+{
+   FB_
+   Sp -= 2;
+   ASSIGN_FLT(Sp+1, F1);
+   Sp[0] = (W_)&stg_gc_f1_info;
+   JMP_(stg_yield_to_interpreter);
+   FE_
+}

 
 

-      return info table (pushed by compiled code)
-      return value (pushed by interpreter)
+// When the returned value is in D1 ...
+INFO_TABLE_RET( stg_ctoi_ret_D1_info, stg_ctoi_ret_D1_entry,
+               0/* special layout */,
+               0/*srt*/, 0/*srt_off*/, 0/*srt_bitmap*/, RET_BCO,, IF_, 0, 0);
+IF_(stg_ctoi_ret_D1_entry)
+{
+   FB_
+   Sp -= 1 + sizeofW(StgDouble);
+   ASSIGN_DBL(Sp+1, D1);
+   Sp[0] = (W_)&stg_gc_d1_info;
+   JMP_(stg_yield_to_interpreter);
+   FE_
+}

 
 

-   If the value is ptr-rep'd, the interpreter simply returns to the
-   scheduler, instructing it to ThreadEnterGHC.
+// When the returned value is in L1 ...
+INFO_TABLE_RET( stg_ctoi_ret_L1_info, stg_ctoi_ret_L1_entry,
+               0/* special layout */,
+               0/*srt*/, 0/*srt_off*/, 0/*srt_bitmap*/, RET_BCO,, IF_, 0, 0);
+IF_(stg_ctoi_ret_L1_entry)
+{
+   FB_
+   Sp -= 1 + sizeofW(StgInt64);
+   ASSIGN_Word64(Sp+1, L1);
+   Sp[0] = (W_)&stg_gc_l1_info;
+   JMP_(stg_yield_to_interpreter);
+   FE_
+}

 
 

-   Otherwise (unboxed return value), we replace the top stack word,
-   which must be the tag, with stg_gc_unbx_r1_info (or f1_info or d1_info),
-   and return to the scheduler, instructing it to ThreadRunGHC.
+// When the returned value a VoidRep ...
+INFO_TABLE_RET( stg_ctoi_ret_V_info, stg_ctoi_ret_V_entry,
+               0/* special layout */,
+               0/*srt*/, 0/*srt_off*/, 0/*srt_bitmap*/, RET_BCO,, IF_, 0, 0);
+IF_(stg_ctoi_ret_V_entry)
+{
+   FB_
+   Sp--;
+   Sp[0] = (W_)&stg_gc_void_info;
+   JMP_(stg_yield_to_interpreter);
+   FE_
+}

 
 

-   No supporting code needed!
-*/
+// Dummy info table pushed on the top of the stack when the interpreter
+// should apply the BCO on the stack to its arguments, also on the stack.
+INFO_TABLE_RET( stg_apply_interp_info, stg_apply_interp_entry,
+               0/* special layout */,
+               0/*srt*/, 0/*srt_off*/, 0/*srt_bitmap*/, RET_BCO,, IF_, 0, 0);
+IF_(stg_apply_interp_entry)
+{
+    FB_
+    // Just in case we end up in here... (we shouldn't)
+    JMP_(stg_yield_to_interpreter);
+    FE_
+}

 
 

+/* -----------------------------------------------------------------------------
+   Entry code for a BCO
+   -------------------------------------------------------------------------- */

 
 

-/* Entering a BCO.  Heave it on the stack and defer to the
-   scheduler. */
-INFO_TABLE(stg_BCO_info,stg_BCO_entry,4,0,BCO,,EF_,"BCO","BCO");
-STGFUN(stg_BCO_entry) {
+INFO_TABLE_FUN_GEN(stg_BCO_info,stg_BCO_entry,4,0,
+             0,0,0,  /* no SRT */
+             ARG_BCO, 0/*dummy arity*/, 0/*dummy bitmap*/, NULL/*slow_apply*/,
+             BCO,,EF_,"BCO","BCO");
+FN_(stg_BCO_entry) {

   FB_
   FB_

-    Sp -= 1;
-    Sp[0] = R1.w;
-    JMP_(stg_yield_to_interpreter);
+  // entering a BCO means "apply it", same as a function
+  Sp -= 2;
+  Sp[1] = R1.w;
+  Sp[0] = (W_)&stg_apply_interp_info;
+  JMP_(stg_yield_to_interpreter);

   FE_
 }
 
   FE_
 }
 

-

 /* -----------------------------------------------------------------------------
 /* -----------------------------------------------------------------------------

-   Entry code for an indirection.
+   Info tables for indirections.
+
+   SPECIALISED INDIRECTIONS: we have a specialised indirection for each
+   kind of return (direct, vectored 0-7), so that we can avoid entering
+   the object when we know what kind of return it will do.  The update
+   code (Updates.hc) updates objects with the appropriate kind of
+   indirection.  We only do this for young-gen indirections.

    -------------------------------------------------------------------------- */
 
    -------------------------------------------------------------------------- */
 

-INFO_TABLE(stg_IND_info,stg_IND_entry,1,0,IND,,EF_,"IND","IND");
-STGFUN(stg_IND_entry)
+INFO_TABLE(stg_IND_info,stg_IND_entry,1,0,IND,,IF_,"IND","IND");
+IF_(stg_IND_entry)

 {
     FB_
     TICK_ENT_DYN_IND(Node);    /* tick */
 {
     FB_
     TICK_ENT_DYN_IND(Node);    /* tick */

@@ -299,8 +266,30 @@ STGFUN(stg_IND_entry)
     FE_
 }
 
     FE_
 }
 

-INFO_TABLE(stg_IND_STATIC_info,stg_IND_STATIC_entry,1,0,IND_STATIC,,EF_,"IND_STATIC","IND_STATIC");
-STGFUN(stg_IND_STATIC_entry)
+#define IND_SPEC(n,ret) \
+INFO_TABLE(stg_IND_##n##_info,stg_IND_##n##_entry,1,0,IND,,IF_,"IND","IND"); \
+IF_(stg_IND_##n##_entry)                       \
+{                                              \
+    FB_                                                \
+    TICK_ENT_DYN_IND(Node);    /* tick */      \
+    R1.p = (P_) ((StgInd*)R1.p)->indirectee;   \
+    TICK_ENT_VIA_NODE();                       \
+    JMP_(ret);                                 \
+    FE_                                                \
+}
+
+IND_SPEC(direct, ENTRY_CODE(Sp[0]))
+IND_SPEC(0, RET_VEC(Sp[0],0))
+IND_SPEC(1, RET_VEC(Sp[0],1))
+IND_SPEC(2, RET_VEC(Sp[0],2))
+IND_SPEC(3, RET_VEC(Sp[0],3))
+IND_SPEC(4, RET_VEC(Sp[0],4))
+IND_SPEC(5, RET_VEC(Sp[0],5))
+IND_SPEC(6, RET_VEC(Sp[0],6))
+IND_SPEC(7, RET_VEC(Sp[0],7))
+
+INFO_TABLE(stg_IND_STATIC_info,stg_IND_STATIC_entry,1,0,IND_STATIC,,IF_,"IND_STATIC","IND_STATIC");
+IF_(stg_IND_STATIC_entry)

 {
     FB_
     TICK_ENT_STATIC_IND(Node); /* tick */
 {
     FB_
     TICK_ENT_STATIC_IND(Node); /* tick */

@@ -310,8 +299,8 @@ STGFUN(stg_IND_STATIC_entry)
     FE_
 }
 
     FE_
 }
 

-INFO_TABLE(stg_IND_PERM_info,stg_IND_PERM_entry,1,1,IND_PERM,,EF_,"IND_PERM","IND_PERM");
-STGFUN(stg_IND_PERM_entry)
+INFO_TABLE(stg_IND_PERM_info,stg_IND_PERM_entry,1,1,IND_PERM,,IF_,"IND_PERM","IND_PERM");
+IF_(stg_IND_PERM_entry)

 {
     FB_
     /* Don't add INDs to granularity cost */
 {
     FB_
     /* Don't add INDs to granularity cost */

@@ -354,8 +343,8 @@ STGFUN(stg_IND_PERM_entry)
     FE_
 }  
 
     FE_
 }  
 

-INFO_TABLE(stg_IND_OLDGEN_info,stg_IND_OLDGEN_entry,1,1,IND_OLDGEN,,EF_,"IND_OLDGEN","IND_OLDGEN");
-STGFUN(stg_IND_OLDGEN_entry)
+INFO_TABLE(stg_IND_OLDGEN_info,stg_IND_OLDGEN_entry,1,1,IND_OLDGEN,,IF_,"IND_OLDGEN","IND_OLDGEN");
+IF_(stg_IND_OLDGEN_entry)

 {
     FB_
     TICK_ENT_STATIC_IND(Node); /* tick */
 {
     FB_
     TICK_ENT_STATIC_IND(Node); /* tick */

@@ -365,8 +354,8 @@ STGFUN(stg_IND_OLDGEN_entry)
     FE_
 }
 
     FE_
 }
 

-INFO_TABLE(stg_IND_OLDGEN_PERM_info,stg_IND_OLDGEN_PERM_entry,1,1,IND_OLDGEN_PERM,,EF_,"IND_OLDGEN_PERM","IND_OLDGEN_PERM");
-STGFUN(stg_IND_OLDGEN_PERM_entry)
+INFO_TABLE(stg_IND_OLDGEN_PERM_info,stg_IND_OLDGEN_PERM_entry,1,1,IND_OLDGEN_PERM,,IF_,"IND_OLDGEN_PERM","IND_OLDGEN_PERM");
+IF_(stg_IND_OLDGEN_PERM_entry)

 {
     FB_
     /* Dont: TICK_ENT_STATIC_IND(Node); for ticky-ticky; this ind is here only to help profiling */
 {
     FB_
     /* Dont: TICK_ENT_STATIC_IND(Node); for ticky-ticky; this ind is here only to help profiling */

@@ -411,8 +400,8 @@ STGFUN(stg_IND_OLDGEN_PERM_entry)
  * old-generation indirection. 
  */
 
  * old-generation indirection. 
  */
 

-INFO_TABLE(stg_BLACKHOLE_info, stg_BLACKHOLE_entry,0,2,BLACKHOLE,,EF_,"BLACKHOLE","BLACKHOLE");
-STGFUN(stg_BLACKHOLE_entry)
+INFO_TABLE(stg_BLACKHOLE_info, stg_BLACKHOLE_entry,0,2,BLACKHOLE,,IF_,"BLACKHOLE","BLACKHOLE");
+IF_(stg_BLACKHOLE_entry)

 {
   FB_
 #if defined(GRAN)
 {
   FB_
 #if defined(GRAN)

@@ -475,8 +464,8 @@ STGFUN(stg_BLACKHOLE_entry)
   FE_
 }
 
   FE_
 }
 

-INFO_TABLE(stg_BLACKHOLE_BQ_info, stg_BLACKHOLE_BQ_entry,1,1,BLACKHOLE_BQ,,EF_,"BLACKHOLE","BLACKHOLE");
-STGFUN(stg_BLACKHOLE_BQ_entry)
+INFO_TABLE(stg_BLACKHOLE_BQ_info, stg_BLACKHOLE_BQ_entry,1,1,BLACKHOLE_BQ,,IF_,"BLACKHOLE","BLACKHOLE");
+IF_(stg_BLACKHOLE_BQ_entry)

 {
   FB_
 #if defined(GRAN)
 {
   FB_
 #if defined(GRAN)

@@ -532,8 +521,8 @@ STGFUN(stg_BLACKHOLE_BQ_entry)
 
 #if defined(PAR) || defined(GRAN)
 
 
 #if defined(PAR) || defined(GRAN)
 

-INFO_TABLE(stg_RBH_info, stg_RBH_entry,1,1,RBH,,EF_,"RBH","RBH");
-STGFUN(stg_RBH_entry)
+INFO_TABLE(stg_RBH_info, stg_RBH_entry,1,1,RBH,,IF_,"RBH","RBH");
+IF_(stg_RBH_entry)

 {
   FB_
 # if defined(GRAN)
 {
   FB_
 # if defined(GRAN)

@@ -556,19 +545,19 @@ STGFUN(stg_RBH_entry)
   FE_
 }
 
   FE_
 }
 

-INFO_TABLE(stg_RBH_Save_0_info, stg_RBH_Save_0_entry,0,2,CONSTR,,EF_,"RBH_Save_0","RBH_Save_0");
+INFO_TABLE(stg_RBH_Save_0_info, stg_RBH_Save_0_entry,0,2,CONSTR,,IF_,"RBH_Save_0","RBH_Save_0");

 NON_ENTERABLE_ENTRY_CODE(RBH_Save_0);
 
 NON_ENTERABLE_ENTRY_CODE(RBH_Save_0);
 

-INFO_TABLE(stg_RBH_Save_1_info, stg_RBH_Save_1_entry,1,1,CONSTR,,EF_,"RBH_Save_1","RBH_Save_1");
+INFO_TABLE(stg_RBH_Save_1_info, stg_RBH_Save_1_entry,1,1,CONSTR,,IF_,"RBH_Save_1","RBH_Save_1");

 NON_ENTERABLE_ENTRY_CODE(RBH_Save_1);
 
 NON_ENTERABLE_ENTRY_CODE(RBH_Save_1);
 

-INFO_TABLE(stg_RBH_Save_2_info, stg_RBH_Save_2_entry,2,0,CONSTR,,EF_,"RBH_Save_2","RBH_Save_2");
+INFO_TABLE(stg_RBH_Save_2_info, stg_RBH_Save_2_entry,2,0,CONSTR,,IF_,"RBH_Save_2","RBH_Save_2");

 NON_ENTERABLE_ENTRY_CODE(RBH_Save_2);
 #endif /* defined(PAR) || defined(GRAN) */
 
 /* identical to BLACKHOLEs except for the infotag */
 NON_ENTERABLE_ENTRY_CODE(RBH_Save_2);
 #endif /* defined(PAR) || defined(GRAN) */
 
 /* identical to BLACKHOLEs except for the infotag */

-INFO_TABLE(stg_CAF_BLACKHOLE_info, stg_CAF_BLACKHOLE_entry,0,2,CAF_BLACKHOLE,,EF_,"CAF_BLACKHOLE","CAF_BLACKHOLE");
-STGFUN(stg_CAF_BLACKHOLE_entry)
+INFO_TABLE(stg_CAF_BLACKHOLE_info, stg_CAF_BLACKHOLE_entry,0,2,CAF_BLACKHOLE,,IF_,"CAF_BLACKHOLE","CAF_BLACKHOLE");
+IF_(stg_CAF_BLACKHOLE_entry)

 {
   FB_
 #if defined(GRAN)
 {
   FB_
 #if defined(GRAN)

@@ -619,9 +608,9 @@ STGFUN(stg_CAF_BLACKHOLE_entry)
   FE_
 }
 
   FE_
 }
 

-#ifdef TICKY_TICKY
-INFO_TABLE(stg_SE_BLACKHOLE_info, stg_SE_BLACKHOLE_entry,0,2,SE_BLACKHOLE,,EF_,"SE_BLACKHOLE","SE_BLACKHOLE");
-STGFUN(stg_SE_BLACKHOLE_entry)
+#ifdef EAGER_BLACKHOLING
+INFO_TABLE(stg_SE_BLACKHOLE_info, stg_SE_BLACKHOLE_entry,0,2,SE_BLACKHOLE,,IF_,"SE_BLACKHOLE","SE_BLACKHOLE");
+IF_(stg_SE_BLACKHOLE_entry)

 {
   FB_
     STGCALL3(fprintf,stderr,"SE_BLACKHOLE at %p entered!\n",R1.p);
 {
   FB_
     STGCALL3(fprintf,stderr,"SE_BLACKHOLE at %p entered!\n",R1.p);

@@ -629,8 +618,8 @@ STGFUN(stg_SE_BLACKHOLE_entry)
   FE_
 }
 
   FE_
 }
 

-INFO_TABLE(SE_CAF_BLACKHOLE_info, SE_CAF_BLACKHOLE_entry,0,2,SE_CAF_BLACKHOLE,,EF_,"CAF_BLACKHOLE","CAF_BLACKHOLE");
-STGFUN(stg_SE_CAF_BLACKHOLE_entry)
+INFO_TABLE(stg_SE_CAF_BLACKHOLE_info, SE_CAF_BLACKHOLE_entry,0,2,SE_CAF_BLACKHOLE,,IF_,"CAF_BLACKHOLE","CAF_BLACKHOLE");
+IF_(stg_SE_CAF_BLACKHOLE_entry)

 {
   FB_
     STGCALL3(fprintf,stderr,"SE_CAF_BLACKHOLE at %p entered!\n",R1.p);
 {
   FB_
     STGCALL3(fprintf,stderr,"SE_CAF_BLACKHOLE at %p entered!\n",R1.p);

@@ -640,11 +629,11 @@ STGFUN(stg_SE_CAF_BLACKHOLE_entry)
 #endif
 
 #ifdef SMP
 #endif
 
 #ifdef SMP

-INFO_TABLE(stg_WHITEHOLE_info, stg_WHITEHOLE_entry,0,2,CONSTR_NOCAF_STATIC,,EF_,"WHITEHOLE","WHITEHOLE");
-STGFUN(stg_WHITEHOLE_entry)
+INFO_TABLE(stg_WHITEHOLE_info, stg_WHITEHOLE_entry,0,2,CONSTR_NOCAF_STATIC,,IF_,"WHITEHOLE","WHITEHOLE");
+IF_(stg_WHITEHOLE_entry)

 {
   FB_
 {
   FB_

-     JMP_(GET_ENTRY(R1.cl));
+    JMP_(GET_ENTRY(R1.cl));

   FE_
 }
 #endif
   FE_
 }
 #endif

@@ -655,7 +644,7 @@ STGFUN(stg_WHITEHOLE_entry)
    NON_ENTERABLE_ENTRY_CODE now defined at the beginning of the file
    -------------------------------------------------------------------------- */
 
    NON_ENTERABLE_ENTRY_CODE now defined at the beginning of the file
    -------------------------------------------------------------------------- */
 

-INFO_TABLE(stg_TSO_info, stg_TSO_entry, 0,0,TSO,,EF_,"TSO","TSO");
+INFO_TABLE(stg_TSO_info, stg_TSO_entry, 0,0,TSO,,IF_,"TSO","TSO");

 NON_ENTERABLE_ENTRY_CODE(TSO);
 
 /* -----------------------------------------------------------------------------
 NON_ENTERABLE_ENTRY_CODE(TSO);
 
 /* -----------------------------------------------------------------------------

@@ -663,7 +652,7 @@ NON_ENTERABLE_ENTRY_CODE(TSO);
    one is a real bug.
    -------------------------------------------------------------------------- */
 
    one is a real bug.
    -------------------------------------------------------------------------- */
 

-INFO_TABLE(stg_EVACUATED_info,stg_EVACUATED_entry,1,0,EVACUATED,,EF_,"EVACUATED","EVACUATED");
+INFO_TABLE(stg_EVACUATED_info,stg_EVACUATED_entry,1,0,EVACUATED,,IF_,"EVACUATED","EVACUATED");

 NON_ENTERABLE_ENTRY_CODE(EVACUATED);
 
 /* -----------------------------------------------------------------------------
 NON_ENTERABLE_ENTRY_CODE(EVACUATED);
 
 /* -----------------------------------------------------------------------------

@@ -674,7 +663,7 @@ NON_ENTERABLE_ENTRY_CODE(EVACUATED);
    live weak pointers with dead ones).
    -------------------------------------------------------------------------- */
 
    live weak pointers with dead ones).
    -------------------------------------------------------------------------- */
 

-INFO_TABLE(stg_WEAK_info,stg_WEAK_entry,0,4,WEAK,,EF_,"WEAK","WEAK");
+INFO_TABLE(stg_WEAK_info,stg_WEAK_entry,0,4,WEAK,,IF_,"WEAK","WEAK");

 NON_ENTERABLE_ENTRY_CODE(WEAK);
 
 // It's important when turning an existing WEAK into a DEAD_WEAK
 NON_ENTERABLE_ENTRY_CODE(WEAK);
 
 // It's important when turning an existing WEAK into a DEAD_WEAK

@@ -682,7 +671,7 @@ NON_ENTERABLE_ENTRY_CODE(WEAK);
 // field and break the linked list of weak pointers.  Hence, we give
 // DEAD_WEAK 4 non-pointer fields, the same as WEAK.
 
 // field and break the linked list of weak pointers.  Hence, we give
 // DEAD_WEAK 4 non-pointer fields, the same as WEAK.
 

-INFO_TABLE_CONSTR(stg_DEAD_WEAK_info,stg_DEAD_WEAK_entry,0,4,0,CONSTR,,EF_,"DEAD_WEAK","DEAD_WEAK");
+INFO_TABLE_CONSTR(stg_DEAD_WEAK_info,stg_DEAD_WEAK_entry,0,4,0,CONSTR,,IF_,"DEAD_WEAK","DEAD_WEAK");

 NON_ENTERABLE_ENTRY_CODE(DEAD_WEAK);
 
 /* -----------------------------------------------------------------------------
 NON_ENTERABLE_ENTRY_CODE(DEAD_WEAK);
 
 /* -----------------------------------------------------------------------------

@@ -692,24 +681,24 @@ NON_ENTERABLE_ENTRY_CODE(DEAD_WEAK);
    finalizer in a weak pointer object.
    -------------------------------------------------------------------------- */
 
    finalizer in a weak pointer object.
    -------------------------------------------------------------------------- */
 

-INFO_TABLE_CONSTR(stg_NO_FINALIZER_info,stg_NO_FINALIZER_entry,0,0,0,CONSTR_NOCAF_STATIC,,EF_,"NO_FINALIZER","NO_FINALIZER");
+INFO_TABLE_CONSTR(stg_NO_FINALIZER_info,stg_NO_FINALIZER_entry,0,0,0,CONSTR_NOCAF_STATIC,,IF_,"NO_FINALIZER","NO_FINALIZER");

 NON_ENTERABLE_ENTRY_CODE(NO_FINALIZER);
 
 NON_ENTERABLE_ENTRY_CODE(NO_FINALIZER);
 

-SET_STATIC_HDR(stg_NO_FINALIZER_closure,stg_NO_FINALIZER_info,0/*CC*/,,EI_)
+SET_STATIC_HDR(stg_NO_FINALIZER_closure,stg_NO_FINALIZER_info,0/*CC*/,,extern const StgInfoTable)

 , /*payload*/{} };
 
 /* -----------------------------------------------------------------------------
    Foreign Objects are unlifted and therefore never entered.
    -------------------------------------------------------------------------- */
 
 , /*payload*/{} };
 
 /* -----------------------------------------------------------------------------
    Foreign Objects are unlifted and therefore never entered.
    -------------------------------------------------------------------------- */
 

-INFO_TABLE(stg_FOREIGN_info,stg_FOREIGN_entry,0,1,FOREIGN,,EF_,"FOREIGN","FOREIGN");
+INFO_TABLE(stg_FOREIGN_info,stg_FOREIGN_entry,0,1,FOREIGN,,IF_,"FOREIGN","FOREIGN");

 NON_ENTERABLE_ENTRY_CODE(FOREIGN);
 
 /* -----------------------------------------------------------------------------
    Stable Names are unlifted too.
    -------------------------------------------------------------------------- */
 
 NON_ENTERABLE_ENTRY_CODE(FOREIGN);
 
 /* -----------------------------------------------------------------------------
    Stable Names are unlifted too.
    -------------------------------------------------------------------------- */
 

-INFO_TABLE(stg_STABLE_NAME_info,stg_STABLE_NAME_entry,0,1,STABLE_NAME,,EF_,"STABLE_NAME","STABLE_NAME");
+INFO_TABLE(stg_STABLE_NAME_info,stg_STABLE_NAME_entry,0,1,STABLE_NAME,,IF_,"STABLE_NAME","STABLE_NAME");

 NON_ENTERABLE_ENTRY_CODE(STABLE_NAME);
 
 /* -----------------------------------------------------------------------------
 NON_ENTERABLE_ENTRY_CODE(STABLE_NAME);
 
 /* -----------------------------------------------------------------------------

@@ -719,10 +708,10 @@ NON_ENTERABLE_ENTRY_CODE(STABLE_NAME);
    and entry code for each type.
    -------------------------------------------------------------------------- */
 
    and entry code for each type.
    -------------------------------------------------------------------------- */
 

-INFO_TABLE(stg_FULL_MVAR_info,stg_FULL_MVAR_entry,4,0,MVAR,,EF_,"MVAR","MVAR");
+INFO_TABLE(stg_FULL_MVAR_info,stg_FULL_MVAR_entry,4,0,MVAR,,IF_,"MVAR","MVAR");

 NON_ENTERABLE_ENTRY_CODE(FULL_MVAR);
 
 NON_ENTERABLE_ENTRY_CODE(FULL_MVAR);
 

-INFO_TABLE(stg_EMPTY_MVAR_info,stg_EMPTY_MVAR_entry,4,0,MVAR,,EF_,"MVAR","MVAR");
+INFO_TABLE(stg_EMPTY_MVAR_info,stg_EMPTY_MVAR_entry,4,0,MVAR,,IF_,"MVAR","MVAR");

 NON_ENTERABLE_ENTRY_CODE(EMPTY_MVAR);
 
 /* -----------------------------------------------------------------------------
 NON_ENTERABLE_ENTRY_CODE(EMPTY_MVAR);
 
 /* -----------------------------------------------------------------------------

@@ -732,10 +721,10 @@ NON_ENTERABLE_ENTRY_CODE(EMPTY_MVAR);
    end of a linked TSO queue.
    -------------------------------------------------------------------------- */
 
    end of a linked TSO queue.
    -------------------------------------------------------------------------- */
 

-INFO_TABLE_CONSTR(stg_END_TSO_QUEUE_info,stg_END_TSO_QUEUE_entry,0,0,0,CONSTR_NOCAF_STATIC,,EF_,"END_TSO_QUEUE","END_TSO_QUEUE");
+INFO_TABLE_CONSTR(stg_END_TSO_QUEUE_info,stg_END_TSO_QUEUE_entry,0,0,0,CONSTR_NOCAF_STATIC,,IF_,"END_TSO_QUEUE","END_TSO_QUEUE");

 NON_ENTERABLE_ENTRY_CODE(END_TSO_QUEUE);
 
 NON_ENTERABLE_ENTRY_CODE(END_TSO_QUEUE);
 

-SET_STATIC_HDR(stg_END_TSO_QUEUE_closure,stg_END_TSO_QUEUE_info,0/*CC*/,,EI_)
+SET_STATIC_HDR(stg_END_TSO_QUEUE_closure,stg_END_TSO_QUEUE_info,0/*CC*/,,extern const StgInfoTable)

 , /*payload*/{} };
 
 /* -----------------------------------------------------------------------------
 , /*payload*/{} };
 
 /* -----------------------------------------------------------------------------

@@ -746,26 +735,26 @@ SET_STATIC_HDR(stg_END_TSO_QUEUE_closure,stg_END_TSO_QUEUE_info,0/*CC*/,,EI_)
    an END_MUT_LIST closure.
    -------------------------------------------------------------------------- */
 
    an END_MUT_LIST closure.
    -------------------------------------------------------------------------- */
 

-INFO_TABLE_CONSTR(stg_END_MUT_LIST_info,stg_END_MUT_LIST_entry,0,0,0,CONSTR_NOCAF_STATIC,,EF_,"END_MUT_LIST","END_MUT_LIST");
+INFO_TABLE_CONSTR(stg_END_MUT_LIST_info,stg_END_MUT_LIST_entry,0,0,0,CONSTR_NOCAF_STATIC,,IF_,"END_MUT_LIST","END_MUT_LIST");

 NON_ENTERABLE_ENTRY_CODE(END_MUT_LIST);
 
 NON_ENTERABLE_ENTRY_CODE(END_MUT_LIST);
 

-SET_STATIC_HDR(stg_END_MUT_LIST_closure,stg_END_MUT_LIST_info,0/*CC*/,,EI_)
+SET_STATIC_HDR(stg_END_MUT_LIST_closure,stg_END_MUT_LIST_info,0/*CC*/,,extern const StgInfoTable)

 , /*payload*/{} };
 
 , /*payload*/{} };
 

-INFO_TABLE(stg_MUT_CONS_info, stg_MUT_CONS_entry, 1, 1, MUT_CONS, , EF_, "MUT_CONS", "MUT_CONS");
+INFO_TABLE(stg_MUT_CONS_info, stg_MUT_CONS_entry, 1, 1, MUT_CONS, , IF_, "MUT_CONS", "MUT_CONS");

 NON_ENTERABLE_ENTRY_CODE(MUT_CONS);
 
 /* -----------------------------------------------------------------------------
    Exception lists
    -------------------------------------------------------------------------- */
 
 NON_ENTERABLE_ENTRY_CODE(MUT_CONS);
 
 /* -----------------------------------------------------------------------------
    Exception lists
    -------------------------------------------------------------------------- */
 

-INFO_TABLE_CONSTR(stg_END_EXCEPTION_LIST_info,stg_END_EXCEPTION_LIST_entry,0,0,0,CONSTR_NOCAF_STATIC,,EF_,"END_EXCEPTION_LIST","END_EXCEPTION_LIST");
+INFO_TABLE_CONSTR(stg_END_EXCEPTION_LIST_info,stg_END_EXCEPTION_LIST_entry,0,0,0,CONSTR_NOCAF_STATIC,,IF_,"END_EXCEPTION_LIST","END_EXCEPTION_LIST");

 NON_ENTERABLE_ENTRY_CODE(END_EXCEPTION_LIST);
 
 NON_ENTERABLE_ENTRY_CODE(END_EXCEPTION_LIST);
 

-SET_STATIC_HDR(stg_END_EXCEPTION_LIST_closure,stg_END_EXCEPTION_LIST_info,0/*CC*/,,EI_)
+SET_STATIC_HDR(stg_END_EXCEPTION_LIST_closure,stg_END_EXCEPTION_LIST_info,0/*CC*/,,extern const StgInfoTable)

 , /*payload*/{} };
 
 , /*payload*/{} };
 

-INFO_TABLE(stg_EXCEPTION_CONS_info, stg_EXCEPTION_CONS_entry, 1, 1, CONSTR, , EF_, "EXCEPTION_CONS", "EXCEPTION_CONS");
+INFO_TABLE(stg_EXCEPTION_CONS_info, stg_EXCEPTION_CONS_entry, 1, 1, CONSTR, , IF_, "EXCEPTION_CONS", "EXCEPTION_CONS");

 NON_ENTERABLE_ENTRY_CODE(EXCEPTION_CONS);
 
 /* -----------------------------------------------------------------------------
 NON_ENTERABLE_ENTRY_CODE(EXCEPTION_CONS);
 
 /* -----------------------------------------------------------------------------

@@ -784,7 +773,7 @@ NON_ENTERABLE_ENTRY_CODE(EXCEPTION_CONS);
    -------------------------------------------------------------------------- */
 
 #define ArrayInfo(type)                                        \
    -------------------------------------------------------------------------- */
 
 #define ArrayInfo(type)                                        \

-INFO_TABLE(stg_##type##_info, stg_##type##_entry, 0, 0, type, , EF_,"" # type "","" # type "");
+INFO_TABLE(stg_##type##_info, stg_##type##_entry, 0, 0, type, , IF_,"" # type "","" # type "");

 
 ArrayInfo(ARR_WORDS);
 NON_ENTERABLE_ENTRY_CODE(ARR_WORDS);
 
 ArrayInfo(ARR_WORDS);
 NON_ENTERABLE_ENTRY_CODE(ARR_WORDS);

@@ -799,27 +788,10 @@ NON_ENTERABLE_ENTRY_CODE(MUT_ARR_PTRS_FROZEN);
    Mutable Variables
    -------------------------------------------------------------------------- */
 
    Mutable Variables
    -------------------------------------------------------------------------- */
 

-INFO_TABLE(stg_MUT_VAR_info, stg_MUT_VAR_entry, 1, 1, MUT_VAR, , EF_, "MUT_VAR", "MUT_VAR");
+INFO_TABLE(stg_MUT_VAR_info, stg_MUT_VAR_entry, 1, 1, MUT_VAR, , IF_, "MUT_VAR", "MUT_VAR");

 NON_ENTERABLE_ENTRY_CODE(MUT_VAR);
 
 /* -----------------------------------------------------------------------------
 NON_ENTERABLE_ENTRY_CODE(MUT_VAR);
 
 /* -----------------------------------------------------------------------------

-   Standard Error Entry.
-
-   This is used for filling in vector-table entries that can never happen,
-   for instance.
-   -------------------------------------------------------------------------- */
-/* No longer used; we use NULL, because a) it never happens, right? and b)
-   Windows doesn't like DLL entry points being used as static initialisers
-STGFUN(stg_error_entry)                                                        \
-{                                                                      \
-  FB_                                                                  \
-    DUMP_ERRMSG("fatal: stg_error_entry");                              \
-    STGCALL1(shutdownHaskellAndExit, EXIT_FAILURE);                    \
-    return NULL;                                                       \
-  FE_                                                                  \
-}
-*/
-/* -----------------------------------------------------------------------------

    Dummy return closure
  
    Entering this closure will just return to the address on the top of the
    Dummy return closure
  
    Entering this closure will just return to the address on the top of the

@@ -827,75 +799,18 @@ STGFUN(stg_error_entry)                                                   \
    just enter the top stack word to start the thread.  (see deleteThread)
  * -------------------------------------------------------------------------- */
 
    just enter the top stack word to start the thread.  (see deleteThread)
  * -------------------------------------------------------------------------- */
 

-INFO_TABLE(stg_dummy_ret_info, stg_dummy_ret_entry, 0, 0, CONSTR_NOCAF_STATIC, , EF_, "DUMMY_RET", "DUMMY_RET");
-STGFUN(stg_dummy_ret_entry)
-{
-  W_ ret_addr;
-  FB_
-  ret_addr = Sp[0];
-  Sp++;
-  JMP_(ENTRY_CODE(ret_addr));
-  FE_
-}
-SET_STATIC_HDR(stg_dummy_ret_closure,stg_dummy_ret_info,CCS_DONT_CARE,,EI_)
-, /*payload*/{} };
+INFO_TABLE( stg_dummy_ret_info, stg_dummy_ret_entry, 
+           0, 0, CONSTR_NOCAF_STATIC, , EF_, "DUMMY_RET", "DUMMY_RET");

 
 

-/* -----------------------------------------------------------------------------
-    Strict IO application - performing an IO action and entering its result.
-    
-    rts_evalIO() lets you perform Haskell IO actions from outside of Haskell-land,
-    returning back to you their result. Want this result to be evaluated to WHNF
-    by that time, so that we can easily get at the int/char/whatever using the
-    various get{Ty} functions provided by the RTS API.
-
-    forceIO takes care of this, performing the IO action and entering the
-    results that comes back.
-
- * -------------------------------------------------------------------------- */
-
-#ifdef REG_R1
-INFO_TABLE_SRT_BITMAP(stg_forceIO_ret_info,stg_forceIO_ret_entry,0,0,0,0,RET_SMALL,,EF_,0,0);
-STGFUN(stg_forceIO_ret_entry)
-{
-  FB_
-  Sp++;
-  Sp -= sizeofW(StgSeqFrame);
-  PUSH_SEQ_FRAME(Sp);
-  JMP_(GET_ENTRY(R1.cl));
-}
-#else
-INFO_TABLE_SRT_BITMAP(stg_forceIO_ret_info,stg_forceIO_ret_entry,0,0,0,0,RET_SMALL,,EF_,0,0);
-STGFUN(stg_forceIO_ret_entry)
-{
-  StgClosure *rval;
-  FB_
-  rval = (StgClosure *)Sp[0];
-  Sp += 2;
-  Sp -= sizeofW(StgSeqFrame);
-  PUSH_SEQ_FRAME(Sp);
-  R1.cl = rval;
-  JMP_(GET_ENTRY(R1.cl));
-}
-#endif
-
-INFO_TABLE(stg_forceIO_info,stg_forceIO_entry,1,0,FUN_STATIC,,EF_,"FORCE_IO","FORCE_IO");
-FN_(stg_forceIO_entry)
+STGFUN(stg_dummy_ret_entry)

 {
   FB_
 {
   FB_

-  /* Sp[0] contains the IO action we want to perform */
-  R1.p  = (P_)Sp[0];
-  /* Replace it with the return continuation that enters the result. */
-  Sp[0] = (W_)&stg_forceIO_ret_info;
-  Sp--;
-  /* Push the RealWorld# tag and enter */
-  Sp[0] =(W_)REALWORLD_TAG;
-  JMP_(GET_ENTRY(R1.cl));
+  JMP_(ENTRY_CODE(Sp[0]));

   FE_
 }
   FE_
 }

-SET_STATIC_HDR(stg_forceIO_closure,stg_forceIO_info,CCS_DONT_CARE,,EI_)
+SET_STATIC_HDR(stg_dummy_ret_closure,stg_dummy_ret_info,CCS_DONT_CARE,,extern const StgInfoTable)

 , /*payload*/{} };
 
 , /*payload*/{} };
 

-

 /* -----------------------------------------------------------------------------
    CHARLIKE and INTLIKE closures.  
 
 /* -----------------------------------------------------------------------------
    CHARLIKE and INTLIKE closures.