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Re: How to turn off NRVO in gcc
Joe Buck <Joe.Buck@synopsys.COM> writes:
> On Wed, Nov 07, 2007 at 07:48:53AM -0800, Ian Lance Taylor wrote:
> > "Debarshi Sanyal" <debarshisanyal@gmail.com> writes:
> >
> > > Is there any way to turn off "named return value optimization"
> > > (NRVO) while compiling a C++ program with g++?
> >
> > This question is not appropriate for gcc@gcc.gnu.org, which is for
> > developers of gcc. It is appropriate for gcc-help@gcc.gnu.org.
> > Please take any followups to that mailing list. Thanks.
> >
> > The answer to your question is no. g++ will always implement NRVO
> > when possible.
>
> You forgot about -fno-elide-constructors , Ian. I've needed it in
> the past to work around a bug in profiling; there's a PR for this.
Ah, tricky. Thanks.
Ian