vkd3d - DXIL support progress?

[Hans-Kristian Arntzen]

Cool. I'll work on that then and keep the ML posted on progress. 
Whatever solution I come up with should be easily reusable into codegen 
later.

Cheers,
Hans-Kristian

On 10/18/19 5:10 PM, Greg Roth wrote:
> Woops! yeah. sorry about the confusion:
>> Just to be clear, the control flow structuring problem is *NOT* 
>> something I have addressed, so work on an algorithm that would solve 
>> this problem would not be duplicated effort.
>>
> Greg
>
>
> On Fri, Oct 18, 2019 at 9:05 AM Hans-Kristian Arntzen 
> <post at arntzen-software.no <mailto:post at arntzen-software.no>> wrote:
>
>
>     On 10/18/19 5:02 PM, Greg Roth wrote:
>>     Just to be clear, the control flow structuring problem is
>>     something I have addressed, so work on an algorithm that would
>>     solve this problem would not be duplicated effort.
>
>     I assume a typo here, there's a contradiction.
>
>     Cheers,
>     Hans-Kristian
>
>>
>>     Greg
>>
>>
>>
>>     On Fri, Oct 18, 2019 at 8:46 AM Henri Verbeet <hverbeet at gmail.com
>>     <mailto:hverbeet at gmail.com>> wrote:
>>
>>         On Fri, 18 Oct 2019 at 18:08, Hans-Kristian Arntzen
>>         <post at arntzen-software.no <mailto:post at arntzen-software.no>>
>>         wrote:
>>         > On 10/18/19 4:32 PM, Henri Verbeet wrote:
>>         > > On Fri, 18 Oct 2019 at 17:51, Hans-Kristian Arntzen
>>         > > <post at arntzen-software.no
>>         <mailto:post at arntzen-software.no>> wrote:
>>         > >> Most of the (little) time I've spent so far as been
>>         coming up with an algorithm to convert DXIL's unstructured
>>         control flow to something which conforms to SPIR-V's
>>         structured model.
>>         > >>
>>         > > I may be missing something, but the existing vkd3d-shader
>>         code already
>>         > > needs to take care of that
>>         > > (vkd3d_dxbc_compiler_emit_control_flow_instruction() in
>>         particular),
>>         > > since both TPF and the (very thin) vkd3d-shader IR are
>>         unstructured as
>>         > > well.
>>         >
>>         >  From what I can tell, the DXBC is structured already, and
>>         if/endif and
>>         > friends are already emitted directly, so there isn't any
>>         complex
>>         > analysis required to convert it to SPIR-V. DXIL is
>>         unstructured, i.e.,
>>         > it's a goto soup, but it has to be a reducible CFG at
>>         least. I didn't
>>         > see any implementation for that.
>>         >
>>         Right, I wouldn't exactly call TPF structured, but it's not quite
>>         unstructured either, and doesn't have goto/jump. I wasn't
>>         aware that
>>         DXIL did.
>>
>>         Henri
>>
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