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From: "dominiq at lps dot ens.fr" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug ipa/64982] [5 Regression] Many g++ failures on x86_64-apple-darwin14 with -m32.
Date: Mon, 09 Feb 2015 19:04:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64982

--- Comment #4 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
> Actually reverting...
>
> Author: hubicka
> Date: Sun Feb  8 21:04:41 2015
> New Revision: 220520
>
> ...
>
> eliminates the ICEs in g++.dg/abi/covariant2.C at -m32 on
> x86_64-apple-darwin14. Probably related to the absence of alias support on
> darwin.

Actually it eliminates all the new ICES.