Use backtracking in find_original_value() for the flags emitter.

[libfirm] / include / libfirm / irgraph.h

diff --git a/include/libfirm/irgraph.h b/include/libfirm/irgraph.h
index f9291a1..8b811e0 100644 (file)
--- a/include/libfirm/irgraph.h
+++ b/include/libfirm/irgraph.h
@@ -236,16 +236,16 @@ void     set_irg_end_reg(ir_graph *irg, ir_node *node);
 ir_node *get_irg_end_except(const ir_graph *irg);
 void     set_irg_end_except(ir_graph *irg, ir_node *node);
 
+/** Returns the node that represents the initial control flow of the given IR graph. */
+ir_node *get_irg_initial_exec(const ir_graph *irg);
+/** Sets the node that represents the initial control of the given IR graph. */
+void     set_irg_initial_exec(ir_graph *irg, ir_node *node);
+
 /** Returns the node that represents the frame pointer of the given IR graph. */
 ir_node *get_irg_frame(const ir_graph *irg);
 /** Sets the node that represents the frame pointer of the given IR graph. */
 void     set_irg_frame(ir_graph *irg, ir_node *node);
 
-/** Returns the node that represents the global pointer of the given IR graph. */
-ir_node *get_irg_globals(const ir_graph *irg);
-/** Sets the node that represents the global pointer of the given IR graph. */
-void     set_irg_globals(ir_graph *irg, ir_node *node);
-
 /** Returns the node that represents the tls pointer of the given IR graph. */
 ir_node *get_irg_tls(const ir_graph *irg);
 /** Sets the node that represents the tls pointer of the given IR graph. */
@@ -512,25 +512,22 @@ void          set_irg_block_visited(ir_graph *irg, unsigned long i);
  * if 2 parties try to use the flags.
  */
 #ifndef NDEBUG
-void set_using_block_visited(ir_graph *irg);
-void clear_using_block_visited(ir_graph *irg);
-int  using_block_visited(const ir_graph *irg);
-void set_using_irn_visited(ir_graph *irg);
-void clear_using_irn_visited(ir_graph *irg);
-int  using_irn_visited(const ir_graph *irg);
-void set_using_irn_link(ir_graph *irg);
-void clear_using_irn_link(ir_graph *irg);
-int  using_irn_link(const ir_graph *irg);
+enum ir_resources_enum_t {
+       IR_RESOURCE_BLOCK_VISITED = 1 << 0,
+       IR_RESOURCE_BLOCK_MARK    = 1 << 1,
+       IR_RESOURCE_IRN_VISITED   = 1 << 2,
+       IR_RESOURCE_IRN_LINK      = 1 << 3,
+       IR_RESOURCE_LOOP_LINK     = 1 << 4,
+};
+typedef unsigned ir_resources_t;
+
+void ir_reserve_resources(ir_graph *irg, ir_resources_t resources);
+void ir_free_resources(ir_graph *irg, ir_resources_t resources);
+ir_resources_t ir_resources_reserved(const ir_graph *irg);
 #else
-static INLINE void set_using_block_visited(ir_graph *irg) { (void) irg; }
-static INLINE void clear_using_block_visited(ir_graph *irg) { (void) irg; }
-static INLINE int using_block_visited(const ir_graph *irg) { (void) irg; return 0; }
-static INLINE void set_using_irn_visited(ir_graph *irg) { (void) irg; }
-static INLINE void clear_using_irn_visited(ir_graph *irg) { (void) irg; }
-static INLINE int using_irn_visited(const ir_graph *irg) { (void) irg; return 0; }
-static INLINE void set_using_irn_link(ir_graph *irg) { (void) irg; }
-static INLINE void clear_using_irn_link(ir_graph *irg) { (void) irg; }
-static INLINE int using_irn_link(const ir_graph *irg) { (void) irg; return 0; }
+#define ir_reserve_resources(irg,resources)
+#define ir_free_resources(irg,resources)
+#define ir_resources_reserved(irg)           0
 #endif
 
 /** Normalization: Move Proj nodes into the same block as its predecessors */