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Cosmetic changes
[libfirm]
/
ir
/
adt
/
unionfind.h
diff --git
a/ir/adt/unionfind.h
b/ir/adt/unionfind.h
index
055907d
..
9364d6b
100644
(file)
--- a/
ir/adt/unionfind.h
+++ b/
ir/adt/unionfind.h
@@
-50,6
+50,9
@@
static INLINE int uf_union(int* data, int set1, int set2) {
int d2 = data[set2];
int newcount;
+ if(set1 == set2)
+ return 0;
+
// need 2 set represantatives
assert(d1 < 0 && d2 < 0);