[Mesa-dev] [RFC PATCH 00/16] A new IR for Mesa

[Matt Turner]

On Fri, Aug 22, 2014 at 2:17 PM, Tom Stellard <tom at stellard.net> wrote:
> On Fri, Aug 22, 2014 at 02:10:03PM -0700, Ian Romanick wrote:
>> Speaking of new shader stages... how would LLVM handle the 'precise'
>> keyword in tesselation shaders?  I can envision ways to handle this in
>> an IR that we control, but it's less obvious how we would handle it in
>> LLVM or another external compiler package.
>>
>
> What exactly does precise do? LLVM has fast-math flags you can apply to
> instructions and also some global flags.

Just search for precise in
https://www.opengl.org/registry/specs/ARB/gpu_shader5.txt