1 files changed, 0 insertions, 133 deletions
diff --git a/src/glsl/nir/nir_lower_outputs_to_temporaries.c b/src/glsl/nir/nir_lower_outputs_to_temporaries.c
deleted file mode 100644
index 71b06b8..0000000
--- a/src/glsl/nir/nir_lower_outputs_to_temporaries.c
+++ /dev/null
@@ -1,133 +0,0 @@
-/*
- * Copyright © 2015 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.
- */
-
-/*
- * Implements a pass that lowers output variables to a temporary plus an
- * output variable with a single copy at each exit point of the shader.
- * This way the output variable is only ever written.
- *
- * Because valid NIR requires that output variables are never read, this
- * pass is more of a helper for NIR producers and must be run before the
- * shader is ever validated.
- */
-
-#include "nir.h"
-
-struct lower_outputs_state {
-   nir_shader *shader;
-   struct exec_list old_outputs;
-};
-
-static void
-emit_output_copies(nir_cursor cursor, struct lower_outputs_state *state)
-{
-   assert(exec_list_length(&state->shader->outputs) ==
-          exec_list_length(&state->old_outputs));
-
-   foreach_two_lists(out_node, &state->shader->outputs,
-                     temp_node, &state->old_outputs) {
-      nir_variable *output = exec_node_data(nir_variable, out_node, node);
-      nir_variable *temp = exec_node_data(nir_variable, temp_node, node);
-
-      nir_intrinsic_instr *copy =
-         nir_intrinsic_instr_create(state->shader, nir_intrinsic_copy_var);
-      copy->variables[0] = nir_deref_var_create(copy, output);
-      copy->variables[1] = nir_deref_var_create(copy, temp);
-
-      nir_instr_insert(cursor, &copy->instr);
-   }
-}
-
-static bool
-emit_output_copies_block(nir_block *block, void *state)
-{
-   nir_foreach_instr(block, instr) {
-      if (instr->type != nir_instr_type_intrinsic)
-         continue;
-
-      nir_intrinsic_instr *intrin = nir_instr_as_intrinsic(instr);
-      if (intrin->intrinsic == nir_intrinsic_emit_vertex)
-         emit_output_copies(nir_before_instr(&intrin->instr), state);
-   }
-
-   return true;
-}
-
-void
-nir_lower_outputs_to_temporaries(nir_shader *shader)
-{
-   struct lower_outputs_state state;
-
-   if (shader->stage == MESA_SHADER_TESS_CTRL)
-      return;
-
-   state.shader = shader;
-   exec_list_move_nodes_to(&shader->outputs, &state.old_outputs);
-
-   /* Walk over all of the outputs turn each output into a temporary and
-    * make a new variable for the actual output.
-    */
-   nir_foreach_variable(var, &state.old_outputs) {
-      nir_variable *output = ralloc(shader, nir_variable);
-      memcpy(output, var, sizeof *output);
-
-      /* The orignal is now the temporary */
-      nir_variable *temp = var;
-
-      /* Reparent the name to the new variable */
-      ralloc_steal(output, output->name);
-
-      /* Give the output a new name with @out-temp appended */
-      temp->name = ralloc_asprintf(var, "%s@out-temp", output->name);
-      temp->data.mode = nir_var_global;
-      temp->constant_initializer = NULL;
-
-      exec_list_push_tail(&shader->outputs, &output->node);
-   }
-
-   nir_foreach_function(shader, function) {
-      if (function->impl == NULL)
-         continue;
-
-      if (shader->stage == MESA_SHADER_GEOMETRY) {
-         /* For geometry shaders, we have to emit the output copies right
-          * before each EmitVertex call.
-          */
-         nir_foreach_block(function->impl, emit_output_copies_block, &state);
-      } else if (strcmp(function->name, "main") == 0) {
-         /* For all other shader types, we need to do the copies right before
-          * the jumps to the end block.
-          */
-         struct set_entry *block_entry;
-         set_foreach(function->impl->end_block->predecessors, block_entry) {
-            struct nir_block *block = (void *)block_entry->key;
-            emit_output_copies(nir_after_block_before_jump(block), &state);
-         }
-      }
-
-      nir_metadata_preserve(function->impl, nir_metadata_block_index |
-                                            nir_metadata_dominance);
-   }
-
-   exec_list_append(&shader->globals, &state.old_outputs);
-}