Re: [EXT] Re: [PATCH 1/3] C++20 constexpr lib part 1/3

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Re: [EXT] Re: [PATCH 1/3] C++20 constexpr lib part 1/3

Marek Polacek-3
On Tue, Aug 06, 2019 at 08:30:14PM +0000, Steve Ellcey wrote:

> On Tue, 2019-08-06 at 21:04 +0100, Jonathan Wakely wrote:
> >
> > The RAJAPerf code appears to be built with -std=gnu++11 which means
> > Ed's patch should make almost no difference at all. 99% of the patch
> > has no effect unless compiling with -std=gnu++2a.
> >
> > I don't see any ICE running the libstdc++ testsuite with -std=gnu++11,
> > so I have no better suggestion than creating a bugzilla report for the
> > C++ front-end, with the preprocessed source of WIP-COUPLE.cpp
>
> I created a preprocessed file.  Unfortunately when I compile that
> preprocessed file with the same options as the unpreprocessed file,
> it does not ICE.  I compiled the original file with -save-temps and
> that compile no longer gives an ICE.  I hate bugs like this.

Does -fdirectives-only make any difference?

Marek