re PR c/5675 (const variables wrongly considered part of constant expressions…

re PR c/5675 (const variables wrongly considered part of constant expressions (gcc.dg/c9[09]-const-expr-3.c))

	PR c/5675
	* c-typeck.c (build_c_cast): Revert patch of 2003-02-16: don't
	fold constant variables into initial values.

From-SVN: r93769

gcc/ChangeLog

+2005-01-17  Ian Lance Taylor  <ian@airs.com>
+
+	PR c/5675
+	* c-typeck.c (build_c_cast): Revert patch of 2003-02-16: don't
+	fold constant variables into initial values.
+
 2005-01-17  Kazu Hirata  <kazu@cs.umass.edu>
 
 	* tree-cfg.c (tree_can_merge_blocks_p): Reorder two checks.

gcc/c-typeck.c

@@ -3202,9 +3202,6 @@ build_c_cast (tree type, tree expr)
 	pedwarn ("ISO C forbids conversion of object pointer to function pointer type");
 
       ovalue = value;
-      /* Replace a nonvolatile const static variable with its value.  */
-      if (optimize && TREE_CODE (value) == VAR_DECL)
-	value = decl_constant_value (value);
       value = convert (type, value);
 
       /* Ignore any integer overflow caused by the cast.  */