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ac/shader: scan output usage mask for VS and TES

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Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Samuel Pitoiset 2018-03-01 11:54:19 +01:00
parent d1fa30e0f8
commit 5cd34f03c0
2 changed files with 22 additions and 0 deletions
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18
src/amd/common/ac_shader_info.c
View file

@ -146,6 +146,24 @@ gather_intrinsic_info(const nir_shader *nir, const nir_intrinsic_instr *instr,
}
}
break;
case nir_intrinsic_store_var: {
nir_deref_var *dvar = instr->variables[0];
nir_variable *var = dvar->var;
if (var->data.mode == nir_var_shader_out) {
unsigned idx = var->data.location;
unsigned comp = var->data.location_frac;
if (nir->info.stage == MESA_SHADER_VERTEX) {
info->vs.output_usage_mask[idx] |=
instr->const_index[0] << comp;
} else if (nir->info.stage == MESA_SHADER_TESS_EVAL) {
info->tes.output_usage_mask[idx] |=
instr->const_index[0] << comp;
}
}
break;
}
default:
break;
}

4
src/amd/common/ac_shader_info.h
View file

@ -37,10 +37,14 @@ struct ac_shader_info {
bool uses_prim_id;
struct {
uint8_t input_usage_mask[VERT_ATTRIB_MAX];
uint8_t output_usage_mask[VARYING_SLOT_VAR31 + 1];
bool has_vertex_buffers; /* needs vertex buffers and base/start */
bool needs_draw_id;
bool needs_instance_id;
} vs;
struct {
uint8_t output_usage_mask[VARYING_SLOT_VAR31 + 1];
} tes;
struct {
bool force_persample;
bool needs_sample_positions;