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, 12 insertions, 12 deletions

diff --git a/gcc/ada/trans.c b/gcc/ada/trans.c
index eb25be3..4defe55 100644
--- a/gcc/ada/trans.c
+++ b/gcc/ada/trans.c
@@ -3219,7 +3219,7 @@ gnat_to_gnu (Node_Id gnat_node)
 	/* If this is a comparison operator, convert any references to
 	   an unconstrained array value into a reference to the
 	   actual array.  */
-	if (TREE_CODE_CLASS (code) == '<')
+	if (TREE_CODE_CLASS (code) == tcc_comparison)
 	  {
 	    gnu_lhs = maybe_unconstrained_array (gnu_lhs);
 	    gnu_rhs = maybe_unconstrained_array (gnu_rhs);
@@ -4035,7 +4035,7 @@ gnat_to_gnu (Node_Id gnat_node)
   /* Set the location information into the result.  If we're supposed to
      return something of void_type, it means we have something we're
      elaborating for effect, so just return.  */
-  if (IS_EXPR_CODE_CLASS (TREE_CODE_CLASS (TREE_CODE (gnu_result))))
+  if (EXPR_P (gnu_result))
     annotate_with_node (gnu_result, gnat_node);
 
   if (TREE_CODE (gnu_result_type) == VOID_TYPE)
@@ -5712,13 +5712,13 @@ gnat_stabilize_reference_1 (tree e, bool force)
 
   switch (TREE_CODE_CLASS (code))
     {
-    case 'x':
-    case 't':
-    case 'd':
-    case '<':
-    case 's':
-    case 'e':
-    case 'r':
+    case tcc_exceptional:
+    case tcc_type:
+    case tcc_declaration:
+    case tcc_comparison:
+    case tcc_statement:
+    case tcc_expression:
+    case tcc_reference:
       /* If this is a COMPONENT_REF of a fat pointer, save the entire
 	 fat pointer.  This may be more efficient, but will also allow
 	 us to more easily find the match for the PLACEHOLDER_EXPR.  */
@@ -5734,12 +5734,12 @@ gnat_stabilize_reference_1 (tree e, bool force)
 	return e;
       break;
 
-    case 'c':
+    case tcc_constant:
       /* Constants need no processing.  In fact, we should never reach
 	 here.  */
       return e;
 
-    case '2':
+    case tcc_binary:
       /* Recursively stabilize each operand.  */
       result = build2 (code, type,
 		       gnat_stabilize_reference_1 (TREE_OPERAND (e, 0), force),
@@ -5747,7 +5747,7 @@ gnat_stabilize_reference_1 (tree e, bool force)
 						   force));
       break;
 
-    case '1':
+    case tcc_unary:
       /* Recursively stabilize each operand.  */
       result = build1 (code, type,
 		       gnat_stabilize_reference_1 (TREE_OPERAND (e, 0),