Mesa (master): ac/shader: scan output usage mask for VS and TES
Samuel Pitoiset
hakzsam at kemper.freedesktop.org
Tue Mar 6 09:39:55 UTC 2018
Module: Mesa
Branch: master
Commit: 5cd34f03c0a38fffe776a57521dad8ca24453bf1
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=5cd34f03c0a38fffe776a57521dad8ca24453bf1
Author: Samuel Pitoiset <samuel.pitoiset at gmail.com>
Date: Thu Mar 1 11:54:19 2018 +0100
ac/shader: scan output usage mask for VS and TES
Signed-off-by: Samuel Pitoiset <samuel.pitoiset at gmail.com>
Reviewed-by: Dave Airlie <airlied at redhat.com>
---
src/amd/common/ac_shader_info.c | 18 ++++++++++++++++++
src/amd/common/ac_shader_info.h | 4 ++++
2 files changed, 22 insertions(+)
diff --git a/src/amd/common/ac_shader_info.c b/src/amd/common/ac_shader_info.c
index 57d7edec76..98de963147 100644
--- a/src/amd/common/ac_shader_info.c
+++ b/src/amd/common/ac_shader_info.c
@@ -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;
}
diff --git a/src/amd/common/ac_shader_info.h b/src/amd/common/ac_shader_info.h
index 60ddfd2d71..12a1dcf915 100644
--- a/src/amd/common/ac_shader_info.h
+++ b/src/amd/common/ac_shader_info.h
@@ -37,11 +37,15 @@ 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;
bool uses_input_attachments;
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