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-rw-r--r--src/amd/common/ac_shader_info.c13
-rw-r--r--src/amd/common/ac_shader_info.h3
2 files changed, 16 insertions, 0 deletions
diff --git a/src/amd/common/ac_shader_info.c b/src/amd/common/ac_shader_info.c
index d771cd250dc..e7132638172 100644
--- a/src/amd/common/ac_shader_info.c
+++ b/src/amd/common/ac_shader_info.c
@@ -133,6 +133,19 @@ gather_intrinsic_info(const nir_shader *nir, const nir_intrinsic_instr *instr,
if (nir->info.stage == MESA_SHADER_FRAGMENT)
info->ps.writes_memory = true;
break;
+ case nir_intrinsic_load_var:
+ if (nir->info.stage == MESA_SHADER_VERTEX) {
+ nir_deref_var *dvar = instr->variables[0];
+ nir_variable *var = dvar->var;
+
+ if (var->data.mode == nir_var_shader_in) {
+ unsigned idx = var->data.location;
+ uint8_t mask =
+ nir_ssa_def_components_read(&instr->dest.ssa);
+ info->vs.input_usage_mask[idx] |= mask;
+ }
+ }
+ break;
default:
break;
}
diff --git a/src/amd/common/ac_shader_info.h b/src/amd/common/ac_shader_info.h
index 59b749576aa..380c06a8551 100644
--- a/src/amd/common/ac_shader_info.h
+++ b/src/amd/common/ac_shader_info.h
@@ -24,6 +24,8 @@
#ifndef AC_SHADER_INFO_H
#define AC_SHADER_INFO_H
+#include "compiler/shader_enums.h"
+
struct nir_shader;
struct ac_nir_compiler_options;
@@ -34,6 +36,7 @@ struct ac_shader_info {
bool uses_invocation_id;
bool uses_prim_id;
struct {
+ uint8_t input_usage_mask[VERT_ATTRIB_MAX];
bool has_vertex_buffers; /* needs vertex buffers and base/start */
bool needs_draw_id;
bool needs_instance_id;