alias.c (find_base_decl): Remove unreachable case '3' block.

2004-09-17  Jeffrey D. Oldham  <oldham@codesourcery.com>
	    Zack Weinberg  <zack@codesourcery.com>

	* alias.c (find_base_decl): Remove unreachable case '3' block.
	* expr.c (safe_from_p): Abort if passed a type.
	* tree-gimple.c (recalculate_side_effects): Abort if passed
	anything other than an expression.
	* tree-ssa-pre.c (phi_translate): Return expr immediately if
	is_gimple_min_invariant is true for it.  Reorder cases for clarity.
	Abort on un-handled tree classes.
	(valid_in_set): Likewise.
	* tree.c (tree_code_class_strings): New static data.

	* tree.h (enum tree_code_class): New.
	(tree_code_class_strings): Declare.
	(TREE_CODE_CLASS_STRING, EXCEPTIONAL_CLASS_P, CONSTANT_CLASS_P)
	(REFERENCE_CLASS_P, COMPARISON_CLASS_P, UNARY_CLASS_P, BINARY_CLASS_P)
	(STATEMENT_CLASS_P, EXPRESSION_CLASS_P, IS_TYPE_OR_DECL_P): New macros.
	(TYPE_P, DECL_P, IS_NON_TYPE_CODE_CLASS, IS_EXPR_CODE_CLASS)
	(checking macros, EXPR_LOCATION, SET_EXPR_LOCATION, EXPR_LOCUS): Update.

	* tree.def, c-common.def, objc/objc-tree.def: Use
	tree_code_class enumeration constants instead of code letters.

	* alias.c, builtins.c, c-common.c, c-format.c, c-lang.c, c-pragma.c
	* c-typeck.c, cgraphunit.c, convert.c, dbxout.c, dwarf2out.c
	* emit-rtl.c expr.c, fold-const.c, gimplify.c, lambda-code.c
	* langhooks.c, langhooks.h, predict.c, print-tree.c, reload1.c, stmt.c
	* tree-browser.c, tree-cfg.c, tree-chrec.c, tree-complex.c, tree-dfa.c
	* tree-dump.c, tree-eh.c, tree-gimple.c, tree-inline.c, tree-nested.c
	* tree-outof-ssa.c, tree-pretty-print.c, tree-sra.c, tree-ssa-ccp.c
	* tree-ssa-dce.c, tree-ssa-dom.c, tree-ssa-forwprop.c, tree-ssa-live.c
	* tree-ssa-loop-im.c, tree-ssa-loop-ivopts.c, tree-ssa-operands.c
	* tree-ssa-phiopt.c, tree-ssa-pre.c, tree-ssa-propagate.c
	* tree-ssa.c, tree-ssanames.c, tree-tailcall.c, tree.c, varasm.c
	* config/sol2-c.c, config/arm/arm.c, config/i386/winnt.c
	* config/pa/pa.c, config/pa/pa.h, config/sh/sh.c, objc/objc-lang.c
	Update to match.

	* LANGUAGES: Add note about change.

ada:
	* ada-tree.def: Use tree_code_class enumeration constants
	instead of code letters.
	* ada-tree.h, decl.c, misc.c, trans.c, utils.c, utils2.c:
	Update for new tree-class enumeration constants.

cp:
	* cp-tree.def: Use tree_code_class enumeration constants
	instead of code letters.
	* call.c, class.c, cp-gimplify.c, cp-lang.c, cxx-pretty-print.c
	* mangle.c, pt.c, semantics.c, tree.c, typeck.c:
	Update for new tree-class enumeration constants.

fortran:
	* f95-lang.c, trans-expr.c, trans.c: Update for new tree-class
	enumeration constants.

java:
	* java-tree.def: Use tree_code_class enumeration constants
	instead of code letters.
	* java-gimplify.c, jcf-write.c, lang.c, parse.y: Update for
	new tree-class enumeration constants.

treelang:
	* treetree.c: Update for new tree-class enumeration constants.

From-SVN: r87675

1 files changed, 18 insertions, 18 deletions

diff --git a/gcc/print-tree.c b/gcc/print-tree.c
index 829e2c9..20822af 100644
--- a/gcc/print-tree.c
+++ b/gcc/print-tree.c
@@ -61,7 +61,7 @@ debug_tree (tree node)
 void
 print_node_brief (FILE *file, const char *prefix, tree node, int indent)
 {
-  char class;
+  enum tree_code_class class;
 
   if (node == 0)
     return;
@@ -75,12 +75,12 @@ print_node_brief (FILE *file, const char *prefix, tree node, int indent)
   fprintf (file, "%s <%s " HOST_PTR_PRINTF,
 	   prefix, tree_code_name[(int) TREE_CODE (node)], (char *) node);
 
-  if (class == 'd')
+  if (class == tcc_declaration)
     {
       if (DECL_NAME (node))
 	fprintf (file, " %s", IDENTIFIER_POINTER (DECL_NAME (node)));
     }
-  else if (class == 't')
+  else if (class == tcc_type)
     {
       if (TYPE_NAME (node))
 	{
@@ -156,7 +156,7 @@ print_node (FILE *file, const char *prefix, tree node, int indent)
   int hash;
   struct bucket *b;
   enum machine_mode mode;
-  char class;
+  enum tree_code_class class;
   int len;
   int first_rtl;
   int i;
@@ -177,7 +177,7 @@ print_node (FILE *file, const char *prefix, tree node, int indent)
       return;
     }
 
-  if (indent > 8 && (class == 't' || class == 'd'))
+  if (indent > 8 && (class == tcc_type || class == tcc_declaration))
     {
       print_node_brief (file, prefix, node, indent);
       return;
@@ -214,12 +214,12 @@ print_node (FILE *file, const char *prefix, tree node, int indent)
 	   prefix, tree_code_name[(int) TREE_CODE (node)], (void *) node);
 
   /* Print the name, if any.  */
-  if (class == 'd')
+  if (class == tcc_declaration)
     {
       if (DECL_NAME (node))
 	fprintf (file, " %s", IDENTIFIER_POINTER (DECL_NAME (node)));
     }
-  else if (class == 't')
+  else if (class == tcc_type)
     {
       if (TYPE_NAME (node))
 	{
@@ -296,7 +296,7 @@ print_node (FILE *file, const char *prefix, tree node, int indent)
 
   switch (TREE_CODE_CLASS (TREE_CODE (node)))
     {
-    case 'd':
+    case tcc_declaration:
       mode = DECL_MODE (node);
 
       if (DECL_UNSIGNED (node))
@@ -461,7 +461,7 @@ print_node (FILE *file, const char *prefix, tree node, int indent)
 	print_node_brief (file, "chain", TREE_CHAIN (node), indent + 4);
       break;
 
-    case 't':
+    case tcc_type:
       if (TYPE_UNSIGNED (node))
 	fputs (" unsigned", file);
 
@@ -573,12 +573,12 @@ print_node (FILE *file, const char *prefix, tree node, int indent)
       print_node_brief (file, "chain", TREE_CHAIN (node), indent + 4);
       break;
 
-    case 'e':
-    case '<':
-    case '1':
-    case '2':
-    case 'r':
-    case 's':
+    case tcc_expression:
+    case tcc_comparison:
+    case tcc_unary:
+    case tcc_binary:
+    case tcc_reference:
+    case tcc_statement:
       if (TREE_CODE (node) == BIT_FIELD_REF && BIT_FIELD_REF_UNSIGNED (node))
 	fputs (" unsigned", file);
       if (TREE_CODE (node) == BIND_EXPR)
@@ -619,8 +619,8 @@ print_node (FILE *file, const char *prefix, tree node, int indent)
       print_node (file, "chain", TREE_CHAIN (node), indent + 4);
       break;
 
-    case 'c':
-    case 'x':
+    case tcc_constant:
+    case tcc_exceptional:
       switch (TREE_CODE (node))
 	{
 	case INTEGER_CST:
@@ -765,7 +765,7 @@ print_node (FILE *file, const char *prefix, tree node, int indent)
 	  break;
 
 	default:
-	  if (TREE_CODE_CLASS (TREE_CODE (node)) == 'x')
+	  if (EXCEPTIONAL_CLASS_P (node))
 	    lang_hooks.print_xnode (file, node, indent);
 	  break;
 	}