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Re: changing "configure" to default to "gcc -g -O2 -fwrapv ..."

From: Robert Dewar
Subject: Re: changing "configure" to default to "gcc -g -O2 -fwrapv ..."
Date: Sat, 30 Dec 2006 19:19:03 -0500
User-agent: Thunderbird (Windows/20061207)

Andrew Pinski wrote:


Again, please don't this the default for Fortran as integer
overflow has been undefined since at least 1977 so I don't think
it is a good idea for GCC in general anyways as evidence of Fortran.

-- Pinski

Well the question is whether the optimization buys anything
in practice for other than the loop bound case, I am guessing
it does not, and if that is the case there is an argument
for uniformity.

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