From: Matthias Braun <matze@braunis.de>
Date: Tue, 30 Jan 2007 14:55:39 +0000 (+0000)
Subject: reconstruct looptree for belady spiller when needed
X-Git-Url: http://nsz.repo.hu/git/?a=commitdiff_plain;h=52f13772583f892f9918b3866aaf9f1014db1a3f;p=libfirm

reconstruct looptree for belady spiller when needed
---

diff --git a/ir/be/bespillbelady.c b/ir/be/bespillbelady.c
index 547de9c54..7f6248b82 100644
--- a/ir/be/bespillbelady.c
+++ b/ir/be/bespillbelady.c
@@ -700,6 +700,10 @@ void be_spill_belady_spill_env(be_irg_t *birg, const arch_register_class_t *cls,
 	//firm_dbg_set_mask(dbg, DBG_SPILL);
 
 	be_assure_liveness(birg);
+	/* construct control flow loop tree */
+	if(! (get_irg_loopinfo_state(irg) & loopinfo_cf_consistent)) {
+		construct_cf_backedges(irg);
+	}
 
 	/* init belady env */
 	obstack_init(&env.ob);