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-rw-r--r--src/alloc.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/alloc.c b/src/alloc.c
index fe13b84b5a7..574196059f8 100644
--- a/src/alloc.c
+++ b/src/alloc.c
@@ -3618,9 +3618,9 @@ mem_insert (start, end, type)
{
struct mem_node *c, *parent, *x;
- if (start < min_heap_address)
+ if (min_heap_address == NULL || start < min_heap_address)
min_heap_address = start;
- if (end > max_heap_address)
+ if (max_heap_address == NULL || end > max_heap_address)
max_heap_address = end;
/* See where in the tree a node for START belongs. In this