From 0556f003594af07a1f21062ecb87996d877a2588 Mon Sep 17 00:00:00 2001
From: Christoph Mallon <christoph.mallon@gmx.de>
Date: Fri, 29 Apr 2011 13:50:24 +0200
Subject: [PATCH] Add simple transfer function for Confirm in fp-vrp.

---
 ir/opt/fp-vrp.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/ir/opt/fp-vrp.c b/ir/opt/fp-vrp.c
index 11a169edc..e25715f88 100644
--- a/ir/opt/fp-vrp.c
+++ b/ir/opt/fp-vrp.c
@@ -258,6 +258,15 @@ result_unknown_X:
 				break;
 			}
 
+			case iro_Confirm: {
+				ir_node* const v = get_Confirm_value(irn);
+				bitinfo* const b = get_bitinfo(v);
+				/* TODO Use bound and relation. */
+				z = b->z;
+				o = b->o;
+				break;
+			}
+
 			case iro_Shl: {
 				bitinfo*   const l  = get_bitinfo(get_Shl_left(irn));
 				bitinfo*   const r  = get_bitinfo(get_Shl_right(irn));
-- 
2.20.1