X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=ghc%2Frts%2FGCCompact.h;h=0fb39b3b12d647abd70310f40c2eb08371f64a8d;hb=2322bc9a89a9d8a6132a6818ccff6f665d7ed7f1;hp=8244e87c4544bd66f4ae6ac6d8c9acc74a9d3b35;hpb=dfd7d6d02a597949b08161ae3d49dc6dfc9e812d;p=ghc-hetmet.git

diff --git a/ghc/rts/GCCompact.h b/ghc/rts/GCCompact.h
index 8244e87..0fb39b3 100644
--- a/ghc/rts/GCCompact.h
+++ b/ghc/rts/GCCompact.h
@@ -1,30 +1,44 @@
 /* -----------------------------------------------------------------------------
- * $Id: GCCompact.h,v 1.1 2001/07/23 17:23:19 simonmar Exp $
  *
- * (c) The GHC Team 1998-1999
+ * (c) The GHC Team 1998-2005
  *
  * Compacting garbage collector
  *
  * ---------------------------------------------------------------------------*/
 
-static inline void 
+#ifndef GCCOMPACT_H
+#define GCCOMPACT_H
+
+STATIC_INLINE void 
 mark(StgPtr p, bdescr *bd)
 {
     nat offset_within_block = p - bd->start; // in words
     StgPtr bitmap_word = (StgPtr)bd->u.bitmap + 
 	(offset_within_block / (sizeof(W_)*BITS_PER_BYTE));
-    nat bit_mask = 1 << (offset_within_block & (sizeof(W_)*BITS_PER_BYTE - 1));
+    StgWord bit_mask = (StgWord)1 << (offset_within_block & (sizeof(W_)*BITS_PER_BYTE - 1));
     *bitmap_word |= bit_mask;
 }
 
-static inline int
+STATIC_INLINE void 
+unmark(StgPtr p, bdescr *bd)
+{
+    nat offset_within_block = p - bd->start; // in words
+    StgPtr bitmap_word = (StgPtr)bd->u.bitmap + 
+	(offset_within_block / (sizeof(W_)*BITS_PER_BYTE));
+    StgWord bit_mask = (StgWord)1 << (offset_within_block & (sizeof(W_)*BITS_PER_BYTE - 1));
+    *bitmap_word &= ~bit_mask;
+}
+
+STATIC_INLINE StgWord
 is_marked(StgPtr p, bdescr *bd)
 {
     nat offset_within_block = p - bd->start; // in words
     StgPtr bitmap_word = (StgPtr)bd->u.bitmap + 
 	(offset_within_block / (sizeof(W_)*BITS_PER_BYTE));
-    nat bit_mask = 1 << (offset_within_block & (sizeof(W_)*BITS_PER_BYTE - 1));
+    StgWord bit_mask = (StgWord)1 << (offset_within_block & (sizeof(W_)*BITS_PER_BYTE - 1));
     return (*bitmap_word & bit_mask);
 }
 
 void compact( void (*get_roots)(evac_fn) );
+
+#endif /* GCCOMPACT_H */