Don't check for swept blocks in -DS.

The checkHeap function assumed the allocated part of the block contained only
alive objects and slops.  This was not true for blocks that are collected using
mark sweep.  The code in this patch skip the test for this kind of blocks.

1 files changed, 2 insertions, 0 deletions

diff --git a/rts/sm/Sweep.c b/rts/sm/Sweep.c
index acbf6f8ca3..81a41182b1 100644
--- a/rts/sm/Sweep.c
+++ b/rts/sm/Sweep.c
@@ -67,6 +67,8 @@ sweep(generation *gen)
                 fragd++;
                 bd->flags |= BF_FRAGMENTED;
             }
+
+            bd->flags |= BF_SWEPT;
         }
     }