[Mesa-dev] [PATCH v3 1/8] nir: evaluate if condition uses inside the if branches

Timothy Arceri tarceri at itsqueeze.com
Wed Aug 1 03:56:45 UTC 2018


On 01/08/18 13:09, Dieter Nützel wrote:
> Am 31.07.2018 13:34, schrieb Timothy Arceri:
>> On 31/07/18 13:50, Dieter Nützel wrote:
>>> Am 30.07.2018 05:24, schrieb Dieter Nützel:
>>>> For the series
>>>>
>>>> Tested-by: Dieter Nützel <Dieter at nuetzel-hh.de>
>>>>
>>>> with glmark2, glxgears, UH, UV, Blender 2.79 and FreeCAD 0.17
>>>>
>>>> on RX 580.
>>>>
>>>> With UH I saw some small light blue triangles spreading around.
>>>> Have to bisect which patch set was the culprit. (If I have some time.)
>>>> Tried your's above
>>>> configure-bump-libdrm-for-AMDGPU-to-2.4.92.mbox (Samuel)
>>>> ASTC-texture-compression-for-all-Gallium-drivers.mbox (Marek)
>>>>
>>>> Dieter
>>>
>>> It has something to do with tessellation.
>>> If I disable it (F3) all small light blue triangles are _gone_.
>>
>> Are you able to bisect?
> 
> In short, it has _nothing_ to do with _this_ series.
> Tested on e6ff5ac446.
> So my tb stands.
> 
> After some sleep (Nothern Germany is _very_ hot and _dry_ this year) 
> I'll do my very best... ;-)

hehe. Yes I've experienced a "heat wave" in Northern Europe before, but 
some of us have very different definitions of _very_ hot and _dry_ :P


> 
>>>
>>> Regards,
>>> Dieter
>>>
>>>> Am 28.07.2018 03:07, schrieb Timothy Arceri:
>>>>> On 28/07/18 11:06, Timothy Arceri wrote:
>>>>>> Since we know what side of the branch we ended up on we can just
>>>>>> replace the use with a constant.
>>>>>>
>>>>>> All the spill changes in shader-db are from Dolphin uber shaders,
>>>>>> despite some small regressions the change is clearly positive.
>>>>>>
>>>>>> V2: insert new constant after any phis in the
>>>>>>      use->parent_instr->type == nir_instr_type_phi path.
>>>>>
>>>>> Meh this was meant to be V3
>>>>> _______________________________________________
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