From: Götz Lindenmaier <goetz@ipd.info.uni-karlsruhe.de>
Date: Wed, 20 Jun 2001 16:20:00 +0000 (+0000)
Subject: using an undefined variable now ends up using a const with
X-Git-Url: http://nsz.repo.hu/git/?a=commitdiff_plain;h=214e730d63ffdccd473107a981059186e72c6042;p=libfirm

using an undefined variable now ends up using a const with
tarval_bad.

[r184]
---

diff --git a/ir/ir/ircons.c b/ir/ir/ircons.c
index cfef815df..fb9901d17 100644
--- a/ir/ir/ircons.c
+++ b/ir/ir/ircons.c
@@ -1074,7 +1074,8 @@ phi_merge (ir_node *block, int pos, ir_mode *mode, ir_node **nin, int ins)
        (bad, jmp).  As the start has a self referencing control flow edge,
        we get a self referencing Id, which is hard to optimize away.  We avoid
        this by defining the value as a Bad node.
-       Returning a const with tarval_bad is a preliminary solution. */
+       Returning a const with tarval_bad is a preliminary solution.  In some
+       situations we might want a Warning or an Error. */
 
     if (block == get_irg_start_block(current_ir_graph)) {
       block->attr.block.graph_arr[pos] = new_Const(mode, tarval_bad);