[Mesa-dev] [PATCH v3 31/48] intel/cs: Re-run final NIR optimizations for each SIMD size

Jason Ekstrand jason at jlekstrand.net
Fri Oct 27 19:49:29 UTC 2017


On Fri, Oct 27, 2017 at 3:03 AM, Iago Toral <itoral at igalia.com> wrote:

> This should be squashed into the previous commit
>

Oops... Fixed.


> On Wed, 2017-10-25 at 16:26 -0700, Jason Ekstrand wrote:
> > With the advent of SPIR-V subgroup operations, compute shaders will
> > have
> > to be slightly different depending on the SIMD size at which they
> > execute.  In order to allow us to do dispatch-width specific things
> > in
> > NIR, we re-run the final NIR stages for each sIMD width.
> >
> > As a side-effect of this change, we start using ralloc on fs_visitor
> > so
> > we need to add DECLARE_RALLOC_OPERATORS to fs_visitor.
> > ---
> >  src/intel/compiler/brw_fs.h | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/src/intel/compiler/brw_fs.h
> > b/src/intel/compiler/brw_fs.h
> > index d3ab385..9ff06b6 100644
> > --- a/src/intel/compiler/brw_fs.h
> > +++ b/src/intel/compiler/brw_fs.h
> > @@ -60,7 +60,7 @@ offset(const fs_reg &reg, const brw::fs_builder
> > &bld, unsigned delta)
> >  class fs_visitor : public backend_shader
> >  {
> >  public:
> > -   DECLARE_RALLOC_CXX_OPERATORS(fs_reg)
> > +   DECLARE_RALLOC_CXX_OPERATORS(fs_visitor)
> >
> >     fs_visitor(const struct brw_compiler *compiler, void *log_data,
> >                void *mem_ctx,
>
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