[Issue 3463] Integrate Precise Heap Scanning Into the GC

[d-bugmail at puremagic.com]

http://d.puremagic.com/issues/show_bug.cgi?id=3463



--- Comment #38 from Leandro Lucarella <llucax at gmail.com> 2010-07-22 19:26:36 PDT ---
If I'm understanding the patch right, I think I found a bug. At the end of
reallocNoSync():

+            if (psize < size ||             // if new size is bigger
+                psize > size * 2)           // or less than half
+            {
+                p2 = mallocNoSync(size, bits, bitMask);
+
+                psize -= bitMaskSize;
+                size -= bitMaskSize;


Shouldn't size and psize be updated before mallocNoSync() is called? Otherwise
a block a word larger than needed would be allocated.

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