diff options
Diffstat (limited to 'libiberty/fibheap.c')
| -rw-r--r-- | libiberty/fibheap.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/libiberty/fibheap.c b/libiberty/fibheap.c index c032149c0c..a37ee4ef27 100644 --- a/libiberty/fibheap.c +++ b/libiberty/fibheap.c @@ -214,7 +214,10 @@ fibheap_replace_key_data (fibheap_t heap, fibnode_t node, node->key = key; y = node->parent; - if (okey == key) + /* Short-circuit if the key is the same, as we then don't have to + do anything. Except if we're trying to force the new node to + be the new minimum for delete. */ + if (okey == key && okey != FIBHEAPKEY_MIN) return odata; /* These two compares are specifically <= 0 to make sure that in the case @@ -256,6 +259,11 @@ fibheap_delete_node (fibheap_t heap, fibnode_t node) /* To perform delete, we just make it the min key, and extract. */ fibheap_replace_key (heap, node, FIBHEAPKEY_MIN); + if (node != heap->min) + { + fprintf (stderr, "Can't force minimum on fibheap.\n"); + abort (); + } fibheap_extract_min (heap); return ret; |