[Mesa-dev] [PATCH] gallivm: Compile flag to debug TGSI execution through printfs.

[Brian Paul]

On 11/13/2013 10:37 AM, jfonseca at vmware.com wrote:
> From: José Fonseca <jfonseca at vmware.com>
>
> It is similar to tgsi_exec.c's DEBUG_EXECUTION compile flag.
>
> I had prototyped this for a while while debugging an issue, but finally
> cleaned this up and added a few more bells and whistles.
>
> Here is a sample output.
>
> CONST[0]:
>    X: 0.006250 0.006250 0.006250 0.006250
>    Y: -0.007143 -0.007143 -0.007143 -0.007143
>    Z: -1.000000 -1.000000 -1.000000 -1.000000
>    W: 1.000000 1.000000 1.000000 1.000000
> IN[0]:
>    X: 143.500000 175.500000 175.500000 143.500000
>    Y: 123.500000 123.500000 155.500000 155.500000
>    Z: 0.000000 0.000000 0.000000 0.000000
>    W: 1.000000 1.000000 1.000000 1.000000
>>    1: RCP TEMP[0].w, IN[0].wwww
>      TEMP[0].w =  1 1 1 1
>>    2: MAD TEMP[0].xy, IN[0], CONST[0], CONST[0].zwzw
>      TEMP[0].x =  -0.103124976 0.0968750715 0.0968750715 -0.103124976
>      TEMP[0].y =  0.117857158 0.117857158 -0.110714316 -0.110714316
>>    3: MUL OUT[0].xy, TEMP[0], TEMP[0].wwww
>      OUT[0].x =  -0.103124976 0.0968750715 0.0968750715 -0.103124976
>      OUT[0].y =  0.117857158 0.117857158 -0.110714316 -0.110714316
>>    4: MUL OUT[0].z, IN[0].zzzz, TEMP[0].wwww
>      OUT[0].z =  0 0 0 0
>>    5: MOV OUT[0].w, TEMP[0]
>      OUT[0].w =  1 1 1 1

Just a quick comment on the formatting above.  Can you get rid of the 
'>' prefixing the instructions?  I imagine we'd want to sometimes use 
diff to find the differences between two runs, so extra >s might be 
confusing.

How about no prefix/indentation on the TGSI instructions but indent the 
result lines a little bit?

-Brian