From: Michael Beck <beck@ipd.info.uni-karlsruhe.de>
Date: Thu, 20 Mar 2008 02:27:20 +0000 (+0000)
Subject: small improvements:
X-Git-Url: http://nsz.repo.hu/git/?a=commitdiff_plain;h=778f86e10809ed70dc9b509509c0d012dcfaf413;hp=778f86e10809ed70dc9b509509c0d012dcfaf413;p=libfirm

small improvements:
- value_not_zero(): safely skip Minus and Abs nodes
- classify_value_sign(): handle Minus nodes

[r18197]
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