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[Bug c/50082] -Wstrict-overflow mishandles typedef
- From: "iant at google dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Mon, 15 Aug 2011 19:39:08 +0000
- Subject: [Bug c/50082] -Wstrict-overflow mishandles typedef
- Auto-submitted: auto-generated
- References: <bug-50082-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50082
--- Comment #5 from iant at google dot com <iant at google dot com> 2011-08-15 19:39:08 UTC ---
"rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org> writes:
> I suppose the forwprop code wants to force a warning at -Wstrict-overflow=1
> if the conditional becomes optimized to a constant at compile-time?
Yes. But perhaps it is overly aggressive--are these conditionals being
optimized to a constant? Maybe the condition for the first argument to
fold_undefer_overflow_warnings needs to be fixed.