llvm dev - Feb 2016 - raw_pwrite_stream to string or stdout?

TargetMachine::CGFT_AssemblyFile is exactly what I am trying to write out.

Frank


On 02/22/2016 11:06 AM, Rafael Espíndola wrote:
> On 19 February 2016 at 16:16, Frank Winter via llvm-dev
> <llvm-dev at lists.llvm.org> wrote:
>> TargetMachine::addPassesToEmitFile(..)
>> requires as its 2nd argument an raw_pwrite_stream.
>>
>> Is it possible to create such a thing which either writes into a
standard
>> string or streams to outs() ?
>
>
> I would suggest doing what llc does:
>
>    if ((FileType != TargetMachine::CGFT_AssemblyFile &&
>           !Out->os().supportsSeeking()) ||
>          CompileTwice) {
>        BOS = make_unique<raw_svector_ostream>(Buffer);
>        OS = BOS.get();
> }
>
> That will work even with redirects.
>
> Cheers,
> Rafael
>

On 22 February 2016 at 11:16, Frank Winter <fwinter at jlab.org>
wrote:
> TargetMachine::CGFT_AssemblyFile is exactly what I am trying to write out.
I see.

For that I think we should be able to just change outs() to return a
raw_fd_ostream. It is already implemented with one anyway.

Cheers,
Rafael

Note that raw_fd_ostream is not seekable, and hence will not be suitable as
addPassesToEmitFile output stream.



2016-02-22 18:27 GMT+02:00 Rafael Espíndola <llvm-dev at lists.llvm.org>:
> On 22 February 2016 at 11:16, Frank Winter <fwinter at jlab.org>
wrote:
> > TargetMachine::CGFT_AssemblyFile is exactly what I am trying to write
> out.
>
> I see.
>
> For that I think we should be able to just change outs() to return a
> raw_fd_ostream. It is already implemented with one anyway.
>
> Cheers,
> Rafael
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