[Mesa-dev] [PATCH v2 0/7] port _mesa_strto[df] to C

Ilia Mirkin imirkin at alum.mit.edu
Fri Jun 26 09:14:23 PDT 2015

On Fri, Jun 26, 2015 at 12:03 PM, Emil Velikov <emil.l.velikov at gmail.com> wrote:
> On 25 June 2015 at 23:10, Matt Turner <mattst88 at gmail.com> wrote:
>> On Thu, Jun 25, 2015 at 2:05 PM, Erik Faye-Lund <kusmabite at gmail.com> wrote:
>>> Back in March[1], I sent a patch porting _mesa_strto[df] to
>>> C rather than C++. I fixed up the patch according to the
>>> criticism, but unfortunately I dropped the ball before I sent
>>> out the result. So here I am, picking it back up!
>>> This time I've taken a deeper dive into the whole init/deinit
>>> of Mesa, and cleaned up a bunch of stuff in that area. And as
>>> a result, this time we end up freeing the locale also.
>>> No Piglit regressions observed.
>>> [1]: <1426446329-23984-1-git-send-email-kusmabite at gmail.com>
>>> Erik Faye-Lund (7):
>>>   mesa/main: Get rid of outdated GDB-hack
>>>   dri: don't touch the shader compiler
>>>   mesa/main: only call _mesa_destroy_shader_compiler once on exit
>>>   glsl: No need to lock in _mesa_glsl_release_types
>>>   util: port _mesa_strto[df] to C
>>>   mesa/main: free locale at exit
>>>   util: assert to verify that locale is initialized
>> Thanks for this! The series looks good to me.
>> I'm slightly worried about 2/7, but not for any reasons other than I'm
>> not very familiar with that code.
>> 1-6 (with the caveat that I may not have any idea what I'm saying
>> about 2/7 ;) are:
>> Reviewed-by: Matt Turner <mattst88 at gmail.com>
>> 7/7 looks like it may have been useful for debugging, but I don't
>> think we should necessarily commit it.
> 7/7 was suggested when the conversion was hooked up in mesa alone ;-)
> So I've hinted that glsl-compiler (and maybe others) are left out and
> adding an assert will help us catch them. If they are fixed now we can
> drop the patch.
> I'm fairly confident that the offline compilers (i965?, nouveau and
> freedreno) and the i965 tests do not use _mesa_strto{d,f} (either
> directly or not). I'm believe that you've already checked ?

nouveau (and freedreno) compilers use tgsi_text, which definitely can
parse floats and doubles. No idea what mechanism it uses for that


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