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From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug middle-end/59125] [4.8/4.9 Regression] gcc triggers wrong strncpy_chk
Date: Thu, 14 Nov 2013 12:59:00 -0000
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59125

--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
It doesn't work that easily.  But we could "refine" a folding result without
actually doing the folding by adding an additional argument to the builtin
which serves as a (sofar) known maximum/minimum value.