From adeef4a4eb19fefccea864efc6c8b5c0f0ee3264 Mon Sep 17 00:00:00 2001
From: Bill Currie <bill@taniwha.org>
Date: Thu, 10 Feb 2011 14:43:49 +0900
Subject: [PATCH] Copy named expressions.

Since expressions can be modified, making DAGs this early causes
corruption of the expression tree.
---
 tools/qfcc/source/expr.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/qfcc/source/expr.c b/tools/qfcc/source/expr.c
index 769226dad..a4107c867 100644
--- a/tools/qfcc/source/expr.c
+++ b/tools/qfcc/source/expr.c
@@ -121,7 +121,7 @@ convert_name (expr_t *e)
 		return;
 	}
 	if (sym->sy_type == sy_expr) {
-		new = sym->s.expr;
+		new = copy_expr (sym->s.expr);
 		goto convert;
 	}
 	if (sym->sy_type == sy_type)