From: Matthias Braun <matze@braunis.de>
Date: Mon, 14 Dec 2009 13:55:34 +0000 (+0000)
Subject: don't rewire keep_alive edges as they often violate SSA dominance properties
X-Git-Url: http://nsz.repo.hu/git/?a=commitdiff_plain;h=b921571012bb3044bc7319057cbe73163842bb3c;p=libfirm

don't rewire keep_alive edges as they often violate SSA dominance properties

[r26788]
---

diff --git a/ir/be/bessaconstr.c b/ir/be/bessaconstr.c
index fd964c20d..96d110432 100644
--- a/ir/be/bessaconstr.c
+++ b/ir/be/bessaconstr.c
@@ -372,11 +372,11 @@ void be_ssa_construction_fix_users_array(be_ssa_construction_env_t *env,
 			if(env->ignore_uses != NULL	&&
 			   ir_nodeset_contains(env->ignore_uses, use))
 				continue;
-			if(is_Anchor(use))
+			if(is_Anchor(use) || is_End(use))
 				continue;
 
 			if(is_Phi(use)) {
-				ir_node *block = get_nodes_block(use);
+				ir_node *block     = get_nodes_block(use);
 				ir_node *predblock = get_Block_cfgpred_block(block, pos);
 				at = sched_last(predblock);
 			}