do a bit of by-hand CSE

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

diff --git a/rts/sm/MBlock.c b/rts/sm/MBlock.c
index b9d71f6..1801086 100644 (file)
--- a/rts/sm/MBlock.c
+++ b/rts/sm/MBlock.c
@@ -265,16 +265,17 @@ freeMBlocks(void *addr, nat n)
 void
 freeAllMBlocks(void)
 {
-    nat n;
-
     debugTrace(DEBUG_gc, "freeing all megablocks");
 
     osFreeAllMBlocks();
 
+#if SIZEOF_VOID_P == 8
+    nat n;
     for (n = 0; n < mblock_map_count; n++) {
         stgFree(mblock_maps[n]);
     }
     stgFree(mblock_maps);
+#endif
 }
 
 void