Ticket #982: tango.patch

gcx.d

@@ -2044 +2044 @@
-        void **p1 = cast(void **)pbot;
-        void **p2 = cast(void **)ptop;
-        uint changes = 0;
+        size_t pageCache;
-
-        //printf("marking range: %p -> %p\n", pbot, ptop);
-        for (; p1 < p2; p1++)
@@ -2052 +2053 @@
-            byte *p = cast(byte *)(*p1);
-
-            //if (log) debug(PRINTF) printf("\tmark %x\n", p);
-
+ && p < maxAddr
-            {
+                if((cast(size_t)p & ~(PAGESIZE-1)) == pageCache)
+                    continue;
+
-                pool = findPool(p);
-                if (pool)
-                {
@@ -2082 +2086 @@
-                        // Don't mark bits in B_FREE or B_UNCOMMITTED pages
-                        continue;
-                    }
+                    if (bin >= B_PAGE)  // cache B_PAGE and B_PAGEPLUS lookups
+                        pageCache = cast(size_t)p & ~(PAGESIZE-1);
-
-                    //debug(PRINTF) printf("\t\tmark(x%x) = %d\n", biti, pool.mark.test(biti));
-                    if (!pool.mark.test(biti))