glsl: move to compiler/

Signed-off-by: Emil Velikov <[email protected]>
Acked-by: Matt Turner <[email protected]>
Acked-by: Jose Fonseca <[email protected]>

1 files changed, 439 insertions, 0 deletions

diff --git a/src/compiler/glsl/ir_hv_accept.cpp b/src/compiler/glsl/ir_hv_accept.cpp
new file mode 100644
index 00000000000..213992af28c
--- /dev/null
+++ b/src/compiler/glsl/ir_hv_accept.cpp
@@ -0,0 +1,439 @@
+/*
+ * Copyright © 2010 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 "ir.h"
+
+/**
+ * \file ir_hv_accept.cpp
+ * Implementations of all hierarchical visitor accept methods for IR
+ * instructions.
+ */
+
+/**
+ * Process a list of nodes using a hierarchical vistor.
+ *
+ * If statement_list is true (the default), this is a list of statements, so
+ * v->base_ir will be set to point to each statement just before iterating
+ * over it, and restored after iteration is complete.  If statement_list is
+ * false, this is a list that appears inside a statement (e.g. a parameter
+ * list), so v->base_ir will be left alone.
+ *
+ * \warning
+ * This function will operate correctly if a node being processed is removed
+ * from the list.  However, if nodes are added to the list after the node being
+ * processed, some of the added nodes may not be processed.
+ */
+ir_visitor_status
+visit_list_elements(ir_hierarchical_visitor *v, exec_list *l,
+                    bool statement_list)
+{
+   ir_instruction *prev_base_ir = v->base_ir;
+
+   foreach_in_list_safe(ir_instruction, ir, l) {
+      if (statement_list)
+         v->base_ir = ir;
+      ir_visitor_status s = ir->accept(v);
+
+      if (s != visit_continue)
+	 return s;
+   }
+   if (statement_list)
+      v->base_ir = prev_base_ir;
+
+   return visit_continue;
+}
+
+
+ir_visitor_status
+ir_rvalue::accept(ir_hierarchical_visitor *v)
+{
+   return v->visit(this);
+}
+
+
+ir_visitor_status
+ir_variable::accept(ir_hierarchical_visitor *v)
+{
+   return v->visit(this);
+}
+
+
+ir_visitor_status
+ir_loop::accept(ir_hierarchical_visitor *v)
+{
+   ir_visitor_status s = v->visit_enter(this);
+
+   if (s != visit_continue)
+      return (s == visit_continue_with_parent) ? visit_continue : s;
+
+   s = visit_list_elements(v, &this->body_instructions);
+   if (s == visit_stop)
+      return s;
+
+   return v->visit_leave(this);
+}
+
+
+ir_visitor_status
+ir_loop_jump::accept(ir_hierarchical_visitor *v)
+{
+   return v->visit(this);
+}
+
+
+ir_visitor_status
+ir_function_signature::accept(ir_hierarchical_visitor *v)
+{
+   ir_visitor_status s = v->visit_enter(this);
+   if (s != visit_continue)
+      return (s == visit_continue_with_parent) ? visit_continue : s;
+
+   s = visit_list_elements(v, &this->parameters);
+   if (s == visit_stop)
+      return s;
+
+   s = visit_list_elements(v, &this->body);
+   return (s == visit_stop) ? s : v->visit_leave(this);
+}
+
+
+ir_visitor_status
+ir_function::accept(ir_hierarchical_visitor *v)
+{
+   ir_visitor_status s = v->visit_enter(this);
+   if (s != visit_continue)
+      return (s == visit_continue_with_parent) ? visit_continue : s;
+
+   s = visit_list_elements(v, &this->signatures, false);
+   return (s == visit_stop) ? s : v->visit_leave(this);
+}
+
+
+ir_visitor_status
+ir_expression::accept(ir_hierarchical_visitor *v)
+{
+   ir_visitor_status s = v->visit_enter(this);
+
+   if (s != visit_continue)
+      return (s == visit_continue_with_parent) ? visit_continue : s;
+
+   for (unsigned i = 0; i < this->get_num_operands(); i++) {
+      switch (this->operands[i]->accept(v)) {
+      case visit_continue:
+	 break;
+
+      case visit_continue_with_parent:
+	 // I wish for Java's labeled break-statement here.
+	 goto done;
+
+      case visit_stop:
+	 return s;
+      }
+   }
+
+done:
+   return v->visit_leave(this);
+}
+
+ir_visitor_status
+ir_texture::accept(ir_hierarchical_visitor *v)
+{
+   ir_visitor_status s = v->visit_enter(this);
+   if (s != visit_continue)
+      return (s == visit_continue_with_parent) ? visit_continue : s;
+
+   s = this->sampler->accept(v);
+   if (s != visit_continue)
+      return (s == visit_continue_with_parent) ? visit_continue : s;
+
+   if (this->coordinate) {
+      s = this->coordinate->accept(v);
+      if (s != visit_continue)
+	 return (s == visit_continue_with_parent) ? visit_continue : s;
+   }
+
+   if (this->projector) {
+      s = this->projector->accept(v);
+      if (s != visit_continue)
+	 return (s == visit_continue_with_parent) ? visit_continue : s;
+   }
+
+   if (this->shadow_comparitor) {
+      s = this->shadow_comparitor->accept(v);
+      if (s != visit_continue)
+	 return (s == visit_continue_with_parent) ? visit_continue : s;
+   }
+
+   if (this->offset) {
+      s = this->offset->accept(v);
+      if (s != visit_continue)
+	 return (s == visit_continue_with_parent) ? visit_continue : s;
+   }
+
+   switch (this->op) {
+   case ir_tex:
+   case ir_lod:
+   case ir_query_levels:
+   case ir_texture_samples:
+   case ir_samples_identical:
+      break;
+   case ir_txb:
+      s = this->lod_info.bias->accept(v);
+      if (s != visit_continue)
+	 return (s == visit_continue_with_parent) ? visit_continue : s;
+      break;
+   case ir_txl:
+   case ir_txf:
+   case ir_txs:
+      s = this->lod_info.lod->accept(v);
+      if (s != visit_continue)
+	 return (s == visit_continue_with_parent) ? visit_continue : s;
+      break;
+   case ir_txf_ms:
+      s = this->lod_info.sample_index->accept(v);
+      if (s != visit_continue)
+         return (s == visit_continue_with_parent) ? visit_continue : s;
+      break;
+   case ir_txd:
+      s = this->lod_info.grad.dPdx->accept(v);
+      if (s != visit_continue)
+	 return (s == visit_continue_with_parent) ? visit_continue : s;
+
+      s = this->lod_info.grad.dPdy->accept(v);
+      if (s != visit_continue)
+	 return (s == visit_continue_with_parent) ? visit_continue : s;
+      break;
+   case ir_tg4:
+      s = this->lod_info.component->accept(v);
+      if (s != visit_continue)
+         return (s == visit_continue_with_parent) ? visit_continue : s;
+      break;
+   }
+
+   return (s == visit_stop) ? s : v->visit_leave(this);
+}
+
+
+ir_visitor_status
+ir_swizzle::accept(ir_hierarchical_visitor *v)
+{
+   ir_visitor_status s = v->visit_enter(this);
+   if (s != visit_continue)
+      return (s == visit_continue_with_parent) ? visit_continue : s;
+
+   s = this->val->accept(v);
+   return (s == visit_stop) ? s : v->visit_leave(this);
+}
+
+
+ir_visitor_status
+ir_dereference_variable::accept(ir_hierarchical_visitor *v)
+{
+   return v->visit(this);
+}
+
+
+ir_visitor_status
+ir_dereference_array::accept(ir_hierarchical_visitor *v)
+{
+   ir_visitor_status s = v->visit_enter(this);
+   if (s != visit_continue)
+      return (s == visit_continue_with_parent) ? visit_continue : s;
+
+   /* The array index is not the target of the assignment, so clear the
+    * 'in_assignee' flag.  Restore it after returning from the array index.
+    */
+   const bool was_in_assignee = v->in_assignee;
+   v->in_assignee = false;
+   s = this->array_index->accept(v);
+   v->in_assignee = was_in_assignee;
+
+   if (s != visit_continue)
+      return (s == visit_continue_with_parent) ? visit_continue : s;
+
+   s = this->array->accept(v);
+   return (s == visit_stop) ? s : v->visit_leave(this);
+}
+
+
+ir_visitor_status
+ir_dereference_record::accept(ir_hierarchical_visitor *v)
+{
+   ir_visitor_status s = v->visit_enter(this);
+   if (s != visit_continue)
+      return (s == visit_continue_with_parent) ? visit_continue : s;
+
+   s = this->record->accept(v);
+   return (s == visit_stop) ? s : v->visit_leave(this);
+}
+
+
+ir_visitor_status
+ir_assignment::accept(ir_hierarchical_visitor *v)
+{
+   ir_visitor_status s = v->visit_enter(this);
+   if (s != visit_continue)
+      return (s == visit_continue_with_parent) ? visit_continue : s;
+
+   v->in_assignee = true;
+   s = this->lhs->accept(v);
+   v->in_assignee = false;
+   if (s != visit_continue)
+      return (s == visit_continue_with_parent) ? visit_continue : s;
+
+   s = this->rhs->accept(v);
+   if (s != visit_continue)
+      return (s == visit_continue_with_parent) ? visit_continue : s;
+
+   if (this->condition)
+      s = this->condition->accept(v);
+
+   return (s == visit_stop) ? s : v->visit_leave(this);
+}
+
+
+ir_visitor_status
+ir_constant::accept(ir_hierarchical_visitor *v)
+{
+   return v->visit(this);
+}
+
+
+ir_visitor_status
+ir_call::accept(ir_hierarchical_visitor *v)
+{
+   ir_visitor_status s = v->visit_enter(this);
+   if (s != visit_continue)
+      return (s == visit_continue_with_parent) ? visit_continue : s;
+
+   if (this->return_deref != NULL) {
+      v->in_assignee = true;
+      s = this->return_deref->accept(v);
+      v->in_assignee = false;
+      if (s != visit_continue)
+	 return (s == visit_continue_with_parent) ? visit_continue : s;
+   }
+
+   s = visit_list_elements(v, &this->actual_parameters, false);
+   if (s == visit_stop)
+      return s;
+
+   return v->visit_leave(this);
+}
+
+
+ir_visitor_status
+ir_return::accept(ir_hierarchical_visitor *v)
+{
+   ir_visitor_status s = v->visit_enter(this);
+   if (s != visit_continue)
+      return (s == visit_continue_with_parent) ? visit_continue : s;
+
+   ir_rvalue *val = this->get_value();
+   if (val) {
+      s = val->accept(v);
+      if (s != visit_continue)
+	 return (s == visit_continue_with_parent) ? visit_continue : s;
+   }
+
+   return v->visit_leave(this);
+}
+
+
+ir_visitor_status
+ir_discard::accept(ir_hierarchical_visitor *v)
+{
+   ir_visitor_status s = v->visit_enter(this);
+   if (s != visit_continue)
+      return (s == visit_continue_with_parent) ? visit_continue : s;
+
+   if (this->condition != NULL) {
+      s = this->condition->accept(v);
+      if (s != visit_continue)
+	 return (s == visit_continue_with_parent) ? visit_continue : s;
+   }
+
+   return v->visit_leave(this);
+}
+
+
+ir_visitor_status
+ir_if::accept(ir_hierarchical_visitor *v)
+{
+   ir_visitor_status s = v->visit_enter(this);
+   if (s != visit_continue)
+      return (s == visit_continue_with_parent) ? visit_continue : s;
+
+   s = this->condition->accept(v);
+   if (s != visit_continue)
+      return (s == visit_continue_with_parent) ? visit_continue : s;
+
+   if (s != visit_continue_with_parent) {
+      s = visit_list_elements(v, &this->then_instructions);
+      if (s == visit_stop)
+	 return s;
+   }
+
+   if (s != visit_continue_with_parent) {
+      s = visit_list_elements(v, &this->else_instructions);
+      if (s == visit_stop)
+	 return s;
+   }
+
+   return v->visit_leave(this);
+}
+
+ir_visitor_status
+ir_emit_vertex::accept(ir_hierarchical_visitor *v)
+{
+   ir_visitor_status s = v->visit_enter(this);
+   if (s != visit_continue)
+      return (s == visit_continue_with_parent) ? visit_continue : s;
+
+   s = this->stream->accept(v);
+   if (s != visit_continue)
+      return (s == visit_continue_with_parent) ? visit_continue : s;
+
+   return (s == visit_stop) ? s : v->visit_leave(this);
+}
+
+
+ir_visitor_status
+ir_end_primitive::accept(ir_hierarchical_visitor *v)
+{
+   ir_visitor_status s = v->visit_enter(this);
+   if (s != visit_continue)
+      return (s == visit_continue_with_parent) ? visit_continue : s;
+
+   s = this->stream->accept(v);
+   if (s != visit_continue)
+      return (s == visit_continue_with_parent) ? visit_continue : s;
+
+   return (s == visit_stop) ? s : v->visit_leave(this);
+}
+
+ir_visitor_status
+ir_barrier::accept(ir_hierarchical_visitor *v)
+{
+   return v->visit(this);
+}