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[Bug target/47522] [4.4/4.5/4.6 Regression] wrong code at -O3 -ffast-math
- From: "Joost.VandeVondele at pci dot uzh.ch" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Mon, 31 Jan 2011 10:16:39 +0000
- Subject: [Bug target/47522] [4.4/4.5/4.6 Regression] wrong code at -O3 -ffast-math
- Auto-submitted: auto-generated
- References: <bug-47522-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47522
--- Comment #3 from Joost VandeVondele <Joost.VandeVondele at pci dot uzh.ch> 2011-01-31 10:16:24 UTC ---
(In reply to comment #2)
> Target piece, if there is one. PR44183 for the vectorizer piece, if there is
> one.
I'm almost certain that this is a dup of PR44183. As far as I can judge, the
result of the calculation is indeed correct.
The annoying thing is that this makes valgrind's 'out of bounds checking' kind
of useless.