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-rw-r--r--cfg.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/cfg.c b/cfg.c
index 3b0c5bb..5385811 100644
--- a/cfg.c
+++ b/cfg.c
@@ -219,6 +219,8 @@ fillfron(Fn *fn)
 {
 	Blk *a, *b;
 
+	for (b=fn->start; b; b=b->link)
+		b->nfron = 0;
 	for (b=fn->start; b; b=b->link) {
 		if (b->s1)
 			for (a=b; !sdom(a, b->s1); a=a->idom)