[Mesa-dev] 761131ce4591e5f55f38d13f2c4d2194bc9cb0fd build regression with llvm 2.8

Adam Jackson ajax at redhat.com
Thu Jul 26 08:17:47 PDT 2012


On 7/26/12 10:52 AM, Jose Fonseca wrote:
> ----- Original Message -----
>> Are the problems of mcjit simply a superset
>> of the problems with the old jit?
>
> The only reason we started to look at mcjit was because old jit didn't support avx. But on current trunk (ie llvm-3.2) it does.
>
> To be honest, apart of avx, none of the benefits of mcjit matter to me:
> - we're not compiling from a C source file (or any kind of source file), so not sure what GDB integration will bring
> and all its shortcomings affect me

I don't think this is essentially true, just temporally true.  Imagine a 
consumer more like OpenCL than OpenGL.  Or, imagine being able to 
breakpoint and single-step in your GL shaders to see where something 
complicated goes wrong.

> IMO, mcjit it's not production quality, and progress has been awfully slow.

That sounds decisive enough for me, thanks.

- ajax


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