1 files changed, 155 insertions, 164 deletions
diff --git a/mesalib/src/glsl/opt_dead_functions.cpp b/mesalib/src/glsl/opt_dead_functions.cpp
index 3c3eb8904..51c77e3b9 100644
--- a/mesalib/src/glsl/opt_dead_functions.cpp
+++ b/mesalib/src/glsl/opt_dead_functions.cpp
@@ -1,164 +1,155 @@
-/*
- * 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.
- */
-
-/**
- * \file opt_dead_functions.cpp
- *
- * Eliminates unused functions from the linked program.
- */
-
-#include "ir.h"
-#include "ir_visitor.h"
-#include "ir_expression_flattening.h"
-#include "glsl_types.h"
-
-class signature_entry : public exec_node
-{
-public:
-   signature_entry(ir_function_signature *sig)
-   {
-      this->signature = sig;
-      this->used = false;
-   }
-
-   ir_function_signature *signature;
-   bool used;
-};
-
-class ir_dead_functions_visitor : public ir_hierarchical_visitor {
-public:
-   ir_dead_functions_visitor()
-   {
-      this->mem_ctx = ralloc_context(NULL);
-      this->seen_another_function_signature = false;
-   }
-
-   ~ir_dead_functions_visitor()
-   {
-      ralloc_free(this->mem_ctx);
-   }
-
-   virtual ir_visitor_status visit_enter(ir_function_signature *);
-   virtual ir_visitor_status visit_enter(ir_call *);
-
-   signature_entry *get_signature_entry(ir_function_signature *var);
-
-   bool (*predicate)(ir_instruction *ir);
-
-   bool seen_another_function_signature;
-
-   /* List of signature_entry */
-   exec_list signature_list;
-   void *mem_ctx;
-};
-
-
-signature_entry *
-ir_dead_functions_visitor::get_signature_entry(ir_function_signature *sig)
-{
-   foreach_iter(exec_list_iterator, iter, this->signature_list) {
-      signature_entry *entry = (signature_entry *)iter.get();
-      if (entry->signature == sig)
-	 return entry;
-   }
-
-   signature_entry *entry = new(mem_ctx) signature_entry(sig);
-   this->signature_list.push_tail(entry);
-   return entry;
-}
-
-
-ir_visitor_status
-ir_dead_functions_visitor::visit_enter(ir_function_signature *ir)
-{
-   signature_entry *entry = this->get_signature_entry(ir);
-
-   if (strcmp(ir->function_name(), "main") == 0) {
-      entry->used = true;
-   }
-
-   /* If this is the first signature to look at, no need to descend to see
-    * if it has calls to another function signature.
-    */
-   if (!this->seen_another_function_signature) {
-      this->seen_another_function_signature = true;
-      return visit_continue_with_parent;
-   }
-
-   return visit_continue;
-}
-
-
-ir_visitor_status
-ir_dead_functions_visitor::visit_enter(ir_call *ir)
-{
-   signature_entry *entry = this->get_signature_entry(ir->get_callee());
-
-   entry->used = true;
-
-   return visit_continue;
-}
-
-bool
-do_dead_functions(exec_list *instructions)
-{
-   ir_dead_functions_visitor v;
-   bool progress = false;
-
-   visit_list_elements(&v, instructions);
-
-   /* Now that we've figured out which function signatures are used, remove
-    * the unused ones, and remove function definitions that have no more
-    * signatures.
-    */
-    foreach_iter(exec_list_iterator, iter, v.signature_list) {
-      signature_entry *entry = (signature_entry *)iter.get();
-
-      if (!entry->used) {
-	 entry->signature->remove();
-	 delete entry->signature;
-	 progress = true;
-      }
-      delete(entry);
-   }
-
-   /* We don't just do this above when we nuked a signature because of
-    * const pointers.
-    */
-   foreach_iter(exec_list_iterator, iter, *instructions) {
-      ir_instruction *ir = (ir_instruction *)iter.get();
-      ir_function *func = ir->as_function();
-
-      if (func && func->signatures.is_empty()) {
-	 /* At this point (post-linking), the symbol table is no
-	  * longer in use, so not removing the function from the
-	  * symbol table should be OK.
-	  */
-	 func->remove();
-	 delete func;
-	 progress = true;
-      }
-   }
-
-   return progress;
-}
+/*
+ * 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.
+ */
+
+/**
+ * \file opt_dead_functions.cpp
+ *
+ * Eliminates unused functions from the linked program.
+ */
+
+#include "ir.h"
+#include "ir_visitor.h"
+#include "ir_expression_flattening.h"
+#include "glsl_types.h"
+
+class signature_entry : public exec_node
+{
+public:
+   signature_entry(ir_function_signature *sig)
+   {
+      this->signature = sig;
+      this->used = false;
+   }
+
+   ir_function_signature *signature;
+   bool used;
+};
+
+class ir_dead_functions_visitor : public ir_hierarchical_visitor {
+public:
+   ir_dead_functions_visitor()
+   {
+      this->mem_ctx = ralloc_context(NULL);
+   }
+
+   ~ir_dead_functions_visitor()
+   {
+      ralloc_free(this->mem_ctx);
+   }
+
+   virtual ir_visitor_status visit_enter(ir_function_signature *);
+   virtual ir_visitor_status visit_enter(ir_call *);
+
+   signature_entry *get_signature_entry(ir_function_signature *var);
+
+   bool (*predicate)(ir_instruction *ir);
+
+   /* List of signature_entry */
+   exec_list signature_list;
+   void *mem_ctx;
+};
+
+
+signature_entry *
+ir_dead_functions_visitor::get_signature_entry(ir_function_signature *sig)
+{
+   foreach_iter(exec_list_iterator, iter, this->signature_list) {
+      signature_entry *entry = (signature_entry *)iter.get();
+      if (entry->signature == sig)
+	 return entry;
+   }
+
+   signature_entry *entry = new(mem_ctx) signature_entry(sig);
+   this->signature_list.push_tail(entry);
+   return entry;
+}
+
+
+ir_visitor_status
+ir_dead_functions_visitor::visit_enter(ir_function_signature *ir)
+{
+   signature_entry *entry = this->get_signature_entry(ir);
+
+   if (strcmp(ir->function_name(), "main") == 0) {
+      entry->used = true;
+   }
+
+
+
+   return visit_continue;
+}
+
+
+ir_visitor_status
+ir_dead_functions_visitor::visit_enter(ir_call *ir)
+{
+   signature_entry *entry = this->get_signature_entry(ir->get_callee());
+
+   entry->used = true;
+
+   return visit_continue;
+}
+
+bool
+do_dead_functions(exec_list *instructions)
+{
+   ir_dead_functions_visitor v;
+   bool progress = false;
+
+   visit_list_elements(&v, instructions);
+
+   /* Now that we've figured out which function signatures are used, remove
+    * the unused ones, and remove function definitions that have no more
+    * signatures.
+    */
+    foreach_iter(exec_list_iterator, iter, v.signature_list) {
+      signature_entry *entry = (signature_entry *)iter.get();
+
+      if (!entry->used) {
+	 entry->signature->remove();
+	 delete entry->signature;
+	 progress = true;
+      }
+      delete(entry);
+   }
+
+   /* We don't just do this above when we nuked a signature because of
+    * const pointers.
+    */
+   foreach_iter(exec_list_iterator, iter, *instructions) {
+      ir_instruction *ir = (ir_instruction *)iter.get();
+      ir_function *func = ir->as_function();
+
+      if (func && func->signatures.is_empty()) {
+	 /* At this point (post-linking), the symbol table is no
+	  * longer in use, so not removing the function from the
+	  * symbol table should be OK.
+	  */
+	 func->remove();
+	 delete func;
+	 progress = true;
+      }
+   }
+
+   return progress;
+}