From: Matthias Braun <matze@braunis.de>
Date: Wed, 26 Sep 2007 19:48:22 +0000 (+0000)
Subject: dont push constrained nodes through perms (fixes fehler82)
X-Git-Url: http://nsz.repo.hu/git/?a=commitdiff_plain;h=8e6e30083438c8ab08bb7c8422a1fdbcbd16d51c;p=libfirm

dont push constrained nodes through perms (fixes fehler82)

[r15932]
---

diff --git a/ir/be/belower.c b/ir/be/belower.c
index 42c887ea8..0ae32e16b 100644
--- a/ir/be/belower.c
+++ b/ir/be/belower.c
@@ -929,8 +929,9 @@ found_front:
 	node = sched_prev(perm);
 	n_moved = 0;
 	while(!sched_is_begin(node)) {
-		int      input = -1;
-		ir_node *proj;
+		const arch_register_req_t *req;
+		int                        input = -1;
+		ir_node                   *proj;
 
 		foreach_out_edge(perm, edge) {
 			ir_node *out = get_edge_src_irn(edge);
@@ -949,6 +950,14 @@ found_front:
 			break;
 		if(arch_irn_is(aenv, node, modify_flags))
 			break;
+		if(is_Proj(node)) {
+			req = arch_get_register_req(aenv, get_Proj_pred(node),
+			                            -1 - get_Proj_proj(node));
+		} else {
+			req = arch_get_register_req(aenv, node, -1);
+		}
+		if(req->type != arch_register_req_type_normal)
+			break;
 		for(i = get_irn_arity(node) - 1; i >= 0; --i) {
 			ir_node *opop = get_irn_n(node, i);
 			if (arch_irn_consider_in_reg_alloc(aenv, cls, opop)) {