[Mesa-dev] [PATCH v3 27/44] nir: Translate glsl shared var store intrinsic to nir intrinsic

[Jordan Justen]

Signed-off-by: Jordan Justen <jordan.l.justen at intel.com>
Reviewed-by: Iago Toral Quiroga <itoral at igalia.com>
---
 src/glsl/nir/glsl_to_nir.cpp  | 33 +++++++++++++++++++++++++++++++++
 src/glsl/nir/nir_intrinsics.h |  3 ++-
 2 files changed, 35 insertions(+), 1 deletion(-)

diff --git a/src/glsl/nir/glsl_to_nir.cpp b/src/glsl/nir/glsl_to_nir.cpp
index 38f9804..779364b 100644
--- a/src/glsl/nir/glsl_to_nir.cpp
+++ b/src/glsl/nir/glsl_to_nir.cpp
@@ -729,6 +729,8 @@ nir_visitor::visit(ir_call *ir)
          op = nir_intrinsic_memory_barrier_shared;
       } else if (strcmp(ir->callee_name(), "__intrinsic_load_shared") == 0) {
          op = nir_intrinsic_load_shared;
+      } else if (strcmp(ir->callee_name(), "__intrinsic_store_shared") == 0) {
+         op = nir_intrinsic_store_shared;
       } else {
          unreachable("not reached");
       }
@@ -1003,6 +1005,37 @@ nir_visitor::visit(ir_call *ir)
          nir_builder_instr_insert(&b, &instr->instr);
          break;
       }
+      case nir_intrinsic_store_shared: {
+         exec_node *param = ir->actual_parameters.get_head();
+         ir_rvalue *offset = ((ir_instruction *)param)->as_rvalue();
+
+         param = param->get_next();
+         ir_rvalue *val = ((ir_instruction *)param)->as_rvalue();
+
+         param = param->get_next();
+         ir_constant *write_mask = ((ir_instruction *)param)->as_constant();
+         assert(write_mask);
+
+         /* Check if we need the indirect version */
+         ir_constant *const_offset = offset->as_constant();
+         if (!const_offset) {
+            op = nir_intrinsic_store_shared_indirect;
+            ralloc_free(instr);
+            instr = nir_intrinsic_instr_create(shader, op);
+            instr->src[1] = nir_src_for_ssa(evaluate_rvalue(offset));
+            instr->const_index[0] = 0;
+         } else {
+            instr->const_index[0] = const_offset->value.u[0];
+         }
+
+         instr->const_index[1] = write_mask->value.u[0];
+
+         instr->src[0] = nir_src_for_ssa(evaluate_rvalue(val));
+         instr->num_components = val->type->vector_elements;
+
+         nir_builder_instr_insert(&b, &instr->instr);
+         break;
+      }
       default:
          unreachable("not reached");
       }
diff --git a/src/glsl/nir/nir_intrinsics.h b/src/glsl/nir/nir_intrinsics.h
index 011b95d..cf9aa88 100644
--- a/src/glsl/nir/nir_intrinsics.h
+++ b/src/glsl/nir/nir_intrinsics.h
@@ -278,5 +278,6 @@ LOAD(shared, 0, 1, NIR_INTRINSIC_CAN_ELIMINATE)
 STORE(output, 0, 0, 0, 0)
 STORE(per_vertex_output, 1, 1, 0, 0)
 STORE(ssbo, 1, 1, 1, 0)
+STORE(shared, 0, 0, 1, 0)
 
-LAST_INTRINSIC(store_ssbo_indirect)
+LAST_INTRINSIC(store_shared_indirect)
-- 
2.6.2