Patch: make `minus_one_node' globally available

["Kaveh R. Ghazi" <ghazi at caip dot rutgers dot edu>]

I thought it would be useful to have a minus_one_node available to all
front-ends, so I moved it out of the cp dir into the top level dir and
used it in one place I found in stmt.c as a test.  (Plus some future
work I'm considering might make use of it.)

Bootstrap/testsuite on sparc-sun-solaris2.7, no regressions.

Ok to install?

		--Kaveh



2001-01-27  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* stmt.c (estimate_case_costs): Use minus_one_node.

	* tree.c (build_common_tree_nodes_2): Set minus_one_node.

	* tree.h (tree_index): Add new element TI_MINUS_ONE.
	(minus_one_node): Define.

cp:
	* cp-tree.h (cp_tree_index): Delete CPTI_MINUS_ONE.
	(minus_one_node): Delete.

	* init.c (init_init_processing): Don't set minus_one_node.
	
diff -rup orig/egcs-CVS20010125/gcc/stmt.c egcs-CVS20010125/gcc/stmt.c
--- orig/egcs-CVS20010125/gcc/stmt.c	Sat Jan 20 16:23:43 2001
+++ egcs-CVS20010125/gcc/stmt.c	Sat Jan 27 09:32:44 2001
@@ -5760,7 +5760,7 @@ static int
 estimate_case_costs (node)
      case_node_ptr node;
 {
-  tree min_ascii = build_int_2 (-1, -1);
+  tree min_ascii = minus_one_node;
   tree max_ascii = convert (TREE_TYPE (node->high), build_int_2 (127, 0));
   case_node_ptr n;
   int i;
diff -rup orig/egcs-CVS20010125/gcc/tree.c egcs-CVS20010125/gcc/tree.c
--- orig/egcs-CVS20010125/gcc/tree.c	Sat Jan 27 09:22:07 2001
+++ egcs-CVS20010125/gcc/tree.c	Sat Jan 27 09:26:41 2001
@@ -4786,6 +4786,7 @@ build_common_tree_nodes_2 (short_double)
   /* Define these next since types below may used them.  */
   integer_zero_node = build_int_2 (0, 0);
   integer_one_node = build_int_2 (1, 0);
+  minus_one_node = build_int_2 (-1, -1);
 
   size_zero_node = size_int (0);
   size_one_node = size_int (1);
diff -rup orig/egcs-CVS20010125/gcc/tree.h egcs-CVS20010125/gcc/tree.h
--- orig/egcs-CVS20010125/gcc/tree.h	Wed Jan 10 22:17:43 2001
+++ egcs-CVS20010125/gcc/tree.h	Sat Jan 27 09:28:54 2001
@@ -1715,6 +1715,7 @@ enum tree_index
     
   TI_INTEGER_ZERO,
   TI_INTEGER_ONE,
+  TI_MINUS_ONE,
   TI_NULL_POINTER,
 
   TI_SIZE_ZERO,
@@ -1770,6 +1771,7 @@ extern tree global_trees[TI_MAX];
 
 #define integer_zero_node		global_trees[TI_INTEGER_ZERO]
 #define integer_one_node		global_trees[TI_INTEGER_ONE]
+#define minus_one_node			global_trees[TI_MINUS_ONE]
 #define size_zero_node			global_trees[TI_SIZE_ZERO]
 #define size_one_node			global_trees[TI_SIZE_ONE]
 #define bitsize_zero_node		global_trees[TI_BITSIZE_ZERO]
diff -rup orig/egcs-CVS20010125/gcc/cp/cp-tree.h egcs-CVS20010125/gcc/cp/cp-tree.h
--- orig/egcs-CVS20010125/gcc/cp/cp-tree.h	Mon Jan 22 16:23:44 2001
+++ egcs-CVS20010125/gcc/cp/cp-tree.h	Sat Jan 27 09:28:15 2001
@@ -635,7 +635,6 @@ enum cp_tree_index
     CPTI_EMPTY_EXCEPT_SPEC,
     CPTI_NULL,
     CPTI_JCLASS,
-    CPTI_MINUS_ONE,
     CPTI_TERMINATE,
     CPTI_ATEXIT,
     CPTI_DSO_HANDLE,
@@ -767,9 +766,6 @@ extern tree cp_global_trees[CPTI_MAX];
 
 /* If non-NULL, a POINTER_TYPE equivalent to (java::lang::Class*). */
 #define jclass_node                     cp_global_trees[CPTI_JCLASS]
-
-/* A node for `(int) -1'.  */
-#define minus_one_node                  cp_global_trees[CPTI_MINUS_ONE]
 
 /* The declaration for `std::terminate'.  */
 #define terminate_node                  cp_global_trees[CPTI_TERMINATE]
diff -rup orig/egcs-CVS20010125/gcc/cp/init.c egcs-CVS20010125/gcc/cp/init.c
--- orig/egcs-CVS20010125/gcc/cp/init.c	Fri Jan 19 16:24:29 2001
+++ egcs-CVS20010125/gcc/cp/init.c	Sat Jan 27 09:27:22 2001
@@ -65,8 +65,6 @@ void init_init_processing ()
 {
   tree fields[1];
 
-  minus_one_node = build_int_2 (-1, -1);
-
   /* Define the structure that holds header information for
      arrays allocated via operator new.  */
   BI_header_type = make_aggr_type (RECORD_TYPE);