Messages in this thread | | | Date | Sat, 23 Jun 2007 15:13:55 +0200 | From | Adrian Bunk <> | Subject | Re: [PATCH] trivial: the memset operation on a automatic array variable should be optimized out by data initialization |
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On Sat, Jun 23, 2007 at 09:59:33AM +0200, Oleg Verych wrote: > * From: Denis Cheng > * Newsgroups: linux.kernel > * Date: Fri, 22 Jun 2007 22:15:49 -0700 (PDT) > > > From: Denis Cheng <crquan@gmail.com> > > > > the explicit memset call could be optimized out by data initialization, > > thus all the fill working can be done by the compiler implicitly. > > Can be optimized and can be done by compiler are just words; > > > and C standard guaranteed all the unspecified data field initialized to zero. > > standards and implementation are on opposite poles of magnet
Bullshit.
We expect a C compiler, and if a C compiler violates the C standard that's a bug in the compiler that has to be fixed.
And gcc is usually quite good in following the C standard.
> > Signed-off-by: Denis Cheng <crquan@gmail.com> > > > > --- > > After comments in the former threads: > > http://lkml.org/lkml/2007/6/18/119 > > i see a patch > > > http://lkml.org/lkml/2007/6/18/48 > > same patch. >...
Open your eyes and you'll find thread overviews at the left side of the URLs he gave...
cu Adrian
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