From: Matthias Braun <matze@braunis.de>
Date: Fri, 31 Aug 2012 11:33:07 +0000 (+0200)
Subject: sparc: be more conservative when moving memops around
X-Git-Url: http://nsz.repo.hu/git/?a=commitdiff_plain;h=babe0f4cc35d4b25e34e62a07324e2dd061e7cc8;p=libfirm

sparc: be more conservative when moving memops around
---

diff --git a/ir/be/bepeephole.c b/ir/be/bepeephole.c
index d58171db5..cc26a63ea 100644
--- a/ir/be/bepeephole.c
+++ b/ir/be/bepeephole.c
@@ -303,6 +303,14 @@ bool be_can_move_up(ir_heights_t *heights, const ir_node *node,
 		/* currently we can move up exactly 1 block */
 		assert(get_Block_cfgpred_block(node_block, 0) == after_block);
 		ir_node *first = sched_first(node_block);
+
+		/* do not move nodes changing memory */
+		if (is_memop(node)) {
+			ir_node *meminput = get_memop_mem(node);
+			if (!is_NoMem(meminput))
+				return false;
+		}
+
 		/* make sure we can move to the beginning of the succ block */
 		if (node != first && !be_can_move_up(heights, node, sched_prev(first)))
 			return false;