ir: freeblk: clear preds

1 files changed, 2 insertions, 0 deletions

diff --git a/ir/ir.c b/ir/ir.c
index 5ffea49..3b37405 100644
--- a/ir/ir.c
+++ b/ir/ir.c
@@ -255,6 +255,8 @@ freeblk(struct function *fn, struct block *blk)
 {
    if (blk->npred > 1)
       xbfree(blk->_pred);
+   blk->npred = 0;
+   blk->_pred = NULL;
 
    for (int i = 0; i < blk->phi.n; ++i) {
       int ui = blk->phi.p[i];