xrandrproto mesa git update 9 aug 2011

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;
+}