* tree-flow-inline.h (gimple_var_anns): New function.

	(var_ann): Use hashtable for static functions.
	* tree-dfa.c (create_var_ann): Likewise.
	* tree-ssa.c (var_ann_eq, var_ann_hash): New functions.
	(init_tree_ssa): Initialize var anns.
	(delete_tree_ssa): Delete var anns; also clear out gimple_df.
	* tree-flow.h (struct static_var_ann_d): New structure.
	(gimple_df): Add var_anns.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@120089 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 13 insertions, 0 deletions

diff --git a/gcc/tree-flow.h b/gcc/tree-flow.h
index 5f63ba93b01..8989c2f0a24 100644
--- a/gcc/tree-flow.h
+++ b/gcc/tree-flow.h
@@ -38,6 +38,7 @@ typedef struct edge_def *edge;
 struct basic_block_def;
 typedef struct basic_block_def *basic_block;
 #endif
+struct static_var_ann_d;
 
 /* Gimple dataflow datastructure. All publicly available fields shall have
    gimple_ accessor defined in tree-flow-inline.h, all publicly modifiable
@@ -92,6 +93,10 @@ struct gimple_df GTY(()) {
   unsigned int in_ssa_p : 1;
 
   struct ssa_operands ssa_operands;
+
+  /* Hashtable of variables annotations.  Used for static variables only;
+     local variables have direct pointer in the tree node.  */
+  htab_t GTY((param_is (struct static_var_ann_d))) var_anns;
 };
 
 /* Accessors for internal use only.  Generic code should use abstraction
@@ -283,6 +288,14 @@ struct var_ann_d GTY(())
   unsigned int escape_mask;
 };
 
+/* Contianer for variable annotation used by hashtable for annotations for
+   static variables.  */
+struct static_var_ann_d GTY(())
+{
+  struct var_ann_d ann;
+  unsigned int uid;
+};
+
 struct function_ann_d GTY(())
 {
   struct tree_ann_common_d common;