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Re: [patch] Lno branch merge part 8 -- canonical induction variable creation
- From: Florian Weimer <fw at deneb dot enyo dot de>
- To: Roger Sayle <roger at eyesopen dot com>
- Cc: Zdenek Dvorak <rakdver at atrey dot karlin dot mff dot cuni dot cz>, gcc-patches at gcc dot gnu dot org
- Date: Sat, 21 Aug 2004 19:53:34 +0200
- Subject: Re: [patch] Lno branch merge part 8 -- canonical induction variable creation
- References: <Pine.LNX.4.44.0408211057300.20216-100000@www.eyesopen.com>
* Roger Sayle:
> Perhaps one day, flag_wrapv might become the C and C++ default...
It should be enabled by the security conscious, anyway. I've seen two
independent instances of after-the-fact integer overflow checks, and
in only one case, the developers agreed to fix it. The concept of
undefined integer overflow is apparently a bit hard to explain, given
what today's compilers are doing. 8-(