Date: Thu, 20 Jan 2005 16:44:59 -0500 (EST) From: "Mike Jakubik" <mikej@rogers.com> To: "Paul Mather" <paul@gromit.dlib.vt.edu> Cc: freebsd-stable@freebsd.org Subject: Re: CFLAGS=-O2 -pipe problems in RELENG_5 ? Message-ID: <52406.207.219.213.162.1106257499.squirrel@207.219.213.162> In-Reply-To: <1106256780.582.5.camel@zappa.Chelsea-Ct.Org> References: <3aaaa3a0501181530975fecf@mail.gmail.com> <XFMail.20050120085633.jdp@polstra.com> <3aaaa3a050120105459f7d015@mail.gmail.com> <3aaaa3a050120111777ada357@mail.gmail.com> <1106256780.582.5.camel@zappa.Chelsea-Ct.Org>
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Paul Mather said: > On Thu, 2005-01-20 at 19:17 +0000, Chris wrote: >> what does -fno-strict-alias do? I cannot find it in man gcc > > It is a truncation of "-fno-strict-aliasing". The flag does not appear > to be described in the gcc man page, but is documented in the gcc info > page (search for "-fstrict-aliasing"). To quote the info page, > -fstrict-aliasing "allows the compiler to assume the strictest aliasing > rules applicable to the language being compiled. ..." Wouldn't we want strict aliasing then?
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