FIX compacting GC (bug1010, and other failures)

[ghc-hetmet.git] / rts / sm / Scav.c

diff --git a/rts/sm/Scav.c b/rts/sm/Scav.c
index dce83ed..f211401 100644 (file)
--- a/rts/sm/Scav.c
+++ b/rts/sm/Scav.c
@@ -4,6 +4,11 @@
  *
  * Generational garbage collector: scavenging functions
  *
+ * Documentation on the architecture of the Garbage Collector can be
+ * found in the online commentary:
+ * 
+ *   http://hackage.haskell.org/trac/ghc/wiki/Commentary/Rts/Storage/GC
+ *
  * ---------------------------------------------------------------------------*/
 
 #include "Rts.h"
@@ -195,7 +200,7 @@ scavenge_PAP_payload (StgClosure *fun, StgClosure **payload, StgWord size)
     StgWord bitmap;
     StgFunInfoTable *fun_info;
     
-    fun_info = get_fun_itbl(fun);
+    fun_info = get_fun_itbl(UNTAG_CLOSURE(fun));
     ASSERT(fun_info->i.type != PAP);
     p = (StgPtr)payload;
 
@@ -406,7 +411,6 @@ scavenge(step *stp)
        bco->instrs = (StgArrWords *)evacuate((StgClosure *)bco->instrs);
        bco->literals = (StgArrWords *)evacuate((StgClosure *)bco->literals);
        bco->ptrs = (StgMutArrPtrs *)evacuate((StgClosure *)bco->ptrs);
-       bco->itbls = (StgArrWords *)evacuate((StgClosure *)bco->itbls);
        p += bco_sizeW(bco);
        break;
     }
@@ -787,7 +791,6 @@ linear_scan:
            bco->instrs = (StgArrWords *)evacuate((StgClosure *)bco->instrs);
            bco->literals = (StgArrWords *)evacuate((StgClosure *)bco->literals);
            bco->ptrs = (StgMutArrPtrs *)evacuate((StgClosure *)bco->ptrs);
-           bco->itbls = (StgArrWords *)evacuate((StgClosure *)bco->itbls);
            break;
        }
 
@@ -1646,7 +1649,6 @@ scavenge_stack(StgPtr p, StgPtr stack_end)
     case STOP_FRAME:
     case CATCH_FRAME:
     case RET_SMALL:
-    case RET_VEC_SMALL:
        bitmap = BITMAP_BITS(info->i.layout.bitmap);
        size   = BITMAP_SIZE(info->i.layout.bitmap);
        // NOTE: the payload starts immediately after the info-ptr, we
@@ -1675,7 +1677,6 @@ scavenge_stack(StgPtr p, StgPtr stack_end)
 
       // large bitmap (> 32 entries, or > 64 on a 64-bit machine) 
     case RET_BIG:
-    case RET_VEC_BIG:
     {
        nat size;
 
@@ -1719,7 +1720,7 @@ scavenge_stack(StgPtr p, StgPtr stack_end)
        StgFunInfoTable *fun_info;
 
        ret_fun->fun = evacuate(ret_fun->fun);
-       fun_info = get_fun_itbl(ret_fun->fun);
+       fun_info = get_fun_itbl(UNTAG_CLOSURE(ret_fun->fun));
        p = scavenge_arg_block(fun_info, ret_fun->payload);
        goto follow_srt;
     }