Rename nir_lower_constant_initializers to nir_lower_variable_initalizers

[mesa.git] / src / compiler / nir / nir_lower_constant_initializers.c

diff --git a/src/compiler/nir/nir_lower_constant_initializers.c b/src/compiler/nir/nir_lower_constant_initializers.c
deleted file mode 100644 (file)
index 03f5a2f..0000000
--- a/src/compiler/nir/nir_lower_constant_initializers.c
+++ /dev/null
@@ -1,125 +0,0 @@
-/*
- * Copyright © 2016 Intel Corporation
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice (including the next
- * paragraph) shall be included in all copies or substantial portions of the
- * Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
- * IN THE SOFTWARE.
- */
-
-#include "nir.h"
-#include "nir_builder.h"
-
-static void
-build_constant_load(nir_builder *b, nir_deref_instr *deref, nir_constant *c)
-{
-   if (glsl_type_is_vector_or_scalar(deref->type)) {
-      nir_load_const_instr *load =
-         nir_load_const_instr_create(b->shader,
-                                     glsl_get_vector_elements(deref->type),
-                                     glsl_get_bit_size(deref->type));
-      memcpy(load->value, c->values, sizeof(*load->value) * load->def.num_components);
-      nir_builder_instr_insert(b, &load->instr);
-      nir_store_deref(b, deref, &load->def, ~0);
-   } else if (glsl_type_is_struct_or_ifc(deref->type)) {
-      unsigned len = glsl_get_length(deref->type);
-      for (unsigned i = 0; i < len; i++) {
-         build_constant_load(b, nir_build_deref_struct(b, deref, i),
-                             c->elements[i]);
-      }
-   } else {
-      assert(glsl_type_is_array(deref->type) ||
-             glsl_type_is_matrix(deref->type));
-      unsigned len = glsl_get_length(deref->type);
-      for (unsigned i = 0; i < len; i++) {
-         build_constant_load(b,
-                             nir_build_deref_array_imm(b, deref, i),
-                             c->elements[i]);
-      }
-   }
-}
-
-static bool
-lower_const_initializer(struct nir_builder *b, struct exec_list *var_list)
-{
-   bool progress = false;
-
-   b->cursor = nir_before_cf_list(&b->impl->body);
-
-   nir_foreach_variable(var, var_list) {
-      if (var->constant_initializer) {
-         build_constant_load(b, nir_build_deref_var(b, var),
-                             var->constant_initializer);
-
-         progress = true;
-         var->constant_initializer = NULL;
-      } else if (var->pointer_initializer) {
-         nir_deref_instr *src_deref = nir_build_deref_var(b, var->pointer_initializer);
-         nir_deref_instr *dst_deref = nir_build_deref_var(b, var);
-
-         /* Note that this stores a pointer to src into dst */
-         nir_store_deref(b, dst_deref, &src_deref->dest.ssa, ~0);
-
-         progress = true;
-         var->pointer_initializer = NULL;
-      }
-
-   }
-
-   return progress;
-}
-
-bool
-nir_lower_constant_initializers(nir_shader *shader, nir_variable_mode modes)
-{
-   bool progress = false;
-
-   nir_foreach_function(function, shader) {
-      if (!function->impl)
-        continue;
-
-      bool impl_progress = false;
-
-      nir_builder builder;
-      nir_builder_init(&builder, function->impl);
-
-      if ((modes & nir_var_shader_out) && function->is_entrypoint)
-         impl_progress |= lower_const_initializer(&builder, &shader->outputs);
-
-      if ((modes & nir_var_shader_temp) && function->is_entrypoint)
-         impl_progress |= lower_const_initializer(&builder, &shader->globals);
-
-      if ((modes & nir_var_system_value) && function->is_entrypoint)
-         impl_progress |= lower_const_initializer(&builder, &shader->system_values);
-
-      if (modes & nir_var_function_temp)
-         impl_progress |= lower_const_initializer(&builder, &function->impl->locals);
-
-      if (impl_progress) {
-         progress = true;
-         nir_metadata_preserve(function->impl, nir_metadata_block_index |
-                                               nir_metadata_dominance |
-                                               nir_metadata_live_ssa_defs);
-      } else {
-#ifndef NDEBUG
-         function->impl->valid_metadata &= ~nir_metadata_not_properly_reset;
-#endif
-      }
-   }
-
-   return progress;
-}