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From: | Robert Dewar |
Subject: | Re: changing "configure" to default to "gcc -g -O2 -fwrapv ..." |
Date: | Sun, 31 Dec 2006 14:15:05 -0500 |
User-agent: | Thunderbird 1.5.0.9 (Windows/20061207) |
Bruce Korb wrote:
Changing that presumption without multiple years of -Wall warnings is a Really, Really, Really Bad Idea.
I am still not ready to agree that this is a RRRBI for the case of loop invariants. We have not seen ONE imaginary example, let alone a real example, where the optimziation of loop invariants (by far the most important optimization in the class we are discussing) would break existing code.
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