Re: [boost] BOOST_NO_CXX11_CONSTEXPR and msvc-14.0

Subject: Re: [boost] BOOST_NO_CXX11_CONSTEXPR and msvc-14.0
From: Francisco José Tapia (fjtapia_at_[hidden])
Date: 2015-07-23 16:45:34

In the benchmarks of my sort algorithms, the same code, the same input
data, running on the same machine. With VC++ 2015 need the double of time
than with GCC 4.9.
 El 23/07/2015 21:27, "Chris Glover" <c.d.glover_at_[hidden]> escribió:

> >
> >
> > No, it's entirely serious. But then I'm a fan of MSVC and especially
> > the team they have behind it whom are all seriously impressive
> > engineers at least out of the ones I've met. MSVC has lots of
> > outstanding features no other compiler has:
> >
> > * It's vastly faster to compile, like 5x-10x faster as it's not an
> > AST based compiler like clang and GCC.
> >
>
> I find this claim interesting because in my (anecdotal) experience over the
> past few years, MSVC is significantly slower than Clang. It seems to be
> generally accepted that MSVC is the fastest, but that is just not my
> experience.
>
>
> > * It generates some very unique assembler which still beats the
> > assembler coming out of clang/LLVM, though it has fallen behind GCC
> > in recent years.
> >
>
> This is also contrary to my experience.  I find that generally both clang
> and gcc generate better code on a more consistent basis.
>
> -- chris
>
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