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, 3 insertions, 4 deletions

diff --git a/gcc/ada/decl.c b/gcc/ada/decl.c
index 604c471..08b5176 100644
--- a/gcc/ada/decl.c
+++ b/gcc/ada/decl.c
@@ -761,7 +761,7 @@ gnat_to_gnu_entity (Entity_Id gnat_entity, tree gnu_expr, int definition)
 	       just use that declaration or reference as this entity unless
 	       the latter has to be materialized.  */
 	    else if ((DECL_P (gnu_expr)
-		      || TREE_CODE_CLASS (TREE_CODE (gnu_expr)) == 'r')
+		      || (REFERENCE_CLASS_P (gnu_expr) == tcc_reference))
 		     && !Materialize_Entity (gnat_entity)
 		     && (!global_bindings_p ()
 			 || (staticp (gnu_expr)
@@ -4553,7 +4553,7 @@ elaborate_expression_1 (Node_Id gnat_expr, Entity_Id gnat_entity,
      rely here on the fact that an expression cannot contain both the
      discriminant and some other variable.  */
 
-  expr_variable = (TREE_CODE_CLASS (TREE_CODE (gnu_expr)) != 'c'
+  expr_variable = (!CONSTANT_CLASS_P (gnu_expr)
 		   && !(TREE_CODE (gnu_inner_expr) == VAR_DECL
 			&& TREE_READONLY (gnu_inner_expr))
 		   && !CONTAINS_PLACEHOLDER_P (gnu_expr));
@@ -5565,8 +5565,7 @@ annotate_value (tree gnu_size)
     return No_Uint;
 
   /* See if we've already saved the value for this node.  */
-  if (IS_EXPR_CODE_CLASS (TREE_CODE_CLASS (TREE_CODE (gnu_size)))
-      && TREE_COMPLEXITY (gnu_size))
+  if (EXPR_P (gnu_size) && TREE_COMPLEXITY (gnu_size))
     return (Node_Ref_Or_Val) TREE_COMPLEXITY (gnu_size);
 
   /* If we do not return inside this switch, TCODE will be set to the