From: Matthias Braun <matze@braunis.de>
Date: Wed, 2 Mar 2011 12:21:33 +0000 (+0100)
Subject: sparc: avoid explicitely querying the barrier
X-Git-Url: http://nsz.repo.hu/git/?a=commitdiff_plain;h=8ec4a1e10fe72948e6076936d408accdb4e90dc0;p=libfirm

sparc: avoid explicitely querying the barrier
---

diff --git a/ir/be/sparc/sparc_transform.c b/ir/be/sparc/sparc_transform.c
index 338fae2af..d1b1c0af2 100644
--- a/ir/be/sparc/sparc_transform.c
+++ b/ir/be/sparc/sparc_transform.c
@@ -1853,17 +1853,19 @@ static ir_node *gen_Proj_Start(ir_node *node)
 {
 	ir_node *block     = get_nodes_block(node);
 	ir_node *new_block = be_transform_node(block);
-	ir_node *barrier   = be_transform_node(get_Proj_pred(node));
 	long     pn        = get_Proj_proj(node);
+	/* make sure prolog is constructed */
+	be_transform_node(get_Proj_pred(node));
 
 	switch ((pn_Start) pn) {
 	case pn_Start_X_initial_exec:
 		/* exchange ProjX with a jump */
 		return new_bd_sparc_Ba(NULL, new_block);
 	case pn_Start_M:
-		return new_r_Proj(barrier, mode_M, 0);
+		return be_prolog_get_memory(abihelper);
 	case pn_Start_T_args:
-		return barrier;
+		/* we should never need this explicitely */
+		return new_r_Bad(get_irn_irg(block));
 	case pn_Start_P_frame_base:
 		return get_frame_base();
 	case pn_Start_P_tls: