[patch] Support .warning directive in integrated assembler

[Nico Weber]

I just realized that I forgot to svn add the test. Here's the same patch
again with a test.


On Wed, Jul 23, 2014 at 8:10 PM, Nico Weber <thakis at chromium.org> wrote:

> Hi,
>
> the attached patch adds support for `.warning "optional string"`, PR20428.
> Ok?
>
> Like I said on the bug, it would be a nice-to-have if there'd be some
> clang driver option to disable .warning warnings, like there is for
> #warning preprocessor lines. I didn't see any infrastructure for
> dispatching warnings from the assembler layer to the clang driver layer
> though – did I just miss that? If not, are there plans to add something
> like that?
>
> Thanks,
> Nico
>
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