On Fri, May 13, 2016 at 1:42 AM, Kenneth Graunke <[email protected]> wrote:
> It would probably make more sense to set this from nir_gather_info() > in case we manage to dead code eliminate these intrinsics. However, > we haven't transitioned the GL driver to using that pass yet... > Please add it anyway so nir_gather_info doesn't get out-of-date. > > Signed-off-by: Kenneth Graunke <[email protected]> > --- > src/compiler/nir/glsl_to_nir.cpp | 3 +++ > src/compiler/nir/nir.h | 3 +++ > 2 files changed, 6 insertions(+) > > diff --git a/src/compiler/nir/glsl_to_nir.cpp > b/src/compiler/nir/glsl_to_nir.cpp > index fb1d421..e82d98a 100644 > --- a/src/compiler/nir/glsl_to_nir.cpp > +++ b/src/compiler/nir/glsl_to_nir.cpp > @@ -1276,6 +1276,9 @@ nir_visitor::visit(ir_expression *ir) > intrin->intrinsic == nir_intrinsic_interp_var_at_sample) > intrin->src[0] = > nir_src_for_ssa(evaluate_rvalue(ir->operands[1])); > > + if (intrin->intrinsic == nir_intrinsic_interp_var_at_offset) > + shader->info.uses_interp_var_at_offset = true; > + > unsigned bit_size = glsl_get_bit_size(deref->type); > add_instr(&intrin->instr, deref->type->vector_elements, bit_size); > > diff --git a/src/compiler/nir/nir.h b/src/compiler/nir/nir.h > index 20927a2..d12792d 100644 > --- a/src/compiler/nir/nir.h > +++ b/src/compiler/nir/nir.h > @@ -1710,6 +1710,9 @@ typedef struct nir_shader_info { > /* Whether or not this shader ever uses textureGather() */ > bool uses_texture_gather; > > + /** Whether or not this shader uses nir_intrinsic_interp_var_at_offset > */ > + bool uses_interp_var_at_offset; > + > /* Whether or not this shader uses the gl_ClipDistance output */ > bool uses_clip_distance_out; > > -- > 2.8.2 > >
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