From: Michael Beck <beck@ipd.info.uni-karlsruhe.de>
Date: Thu, 25 Oct 2007 20:05:21 +0000 (+0000)
Subject: Fixed Sub(Conv, Conv) optimization
X-Git-Url: http://nsz.repo.hu/git/?a=commitdiff_plain;h=58c8a2e998939d6268777f69cfeb2713ee605734;p=libfirm

Fixed Sub(Conv, Conv) optimization

[r16356]
---

diff --git a/ir/ir/iropt.c b/ir/ir/iropt.c
index f0dae40a5..2d88fa849 100644
--- a/ir/ir/iropt.c
+++ b/ir/ir/iropt.c
@@ -2311,16 +2311,16 @@ restart:
 
 		if (mode == get_irn_mode(b)) {
 			ir_mode *ma, *mb;
-
-			a = get_Conv_op(a);
-			b = get_Conv_op(b);
+			ir_node *op_a = get_Conv_op(a);
+			ir_node *op_b = get_Conv_op(b);
 
 			/* check if it's allowed to skip the conv */
-			ma = get_irn_mode(a);
-			mb = get_irn_mode(b);
+			ma = get_irn_mode(op_a);
+			mb = get_irn_mode(op_b);
 
 			if (mode_is_reference(ma) && mode_is_reference(mb)) {
 				/* SubInt(ConvInt(aP), ConvInt(bP)) -> SubInt(aP,bP) */
+				a = op_a; b = op_b;
 				set_Sub_left(n, a);
 				set_Sub_right(n, b);