From: Michael Beck <beck@ipd.info.uni-karlsruhe.de>
Date: Thu, 30 Oct 2008 02:13:58 +0000 (+0000)
Subject: - do not treat Constants as live-ins: this assures, that a
X-Git-Url: http://nsz.repo.hu/git/?a=commitdiff_plain;h=3182d03a37f4457f7e29fa8777e57b3e89410847;p=libfirm

- do not treat Constants as live-ins: this assures, that a
  meltet block has the same number of inputs like the original

[r23306]
---

diff --git a/ir/opt/opt_blocks.c b/ir/opt/opt_blocks.c
index 647f51df0..38b2418d0 100644
--- a/ir/opt/opt_blocks.c
+++ b/ir/opt/opt_blocks.c
@@ -466,10 +466,13 @@ void propagate_blocks(partition_t *part, environment_t *env) {
 
 				if (block != bl->block) {
 					p_node = create_node(pred, env);
-					p_node->is_input = 1;
 					add_node(bl, p_node);
-					if (! is_Phi(irn))
-						add_pair(bl, irn, i, env);
+					/* do not threat Constants like live-ins */
+					if (! is_irn_constlike(irn)) {
+						p_node->is_input = 1;
+						if (! is_Phi(irn))
+							add_pair(bl, irn, i, env);
+					}
 				} else if (! irn_visited_else_mark(pred)) {
 					/* not yet visited, ok */
 					p_node = create_node(pred, env);