tree.c (initializer_zerop): Add test for empty set.

2003-12-15  Waldek Hebisch  <hebisch@math.uni.wroc.pl>

	* tree.c (initializer_zerop): Add test for empty set.
	* integrate.c (function_cannot_inline_p): Forbid inlining
	functions calling `longjmp'.

From-SVN: r74633

gcc/ChangeLog

+2003-12-15  Waldek Hebisch  <hebisch@math.uni.wroc.pl>
+
+	* tree.c (initializer_zerop): Add test for empty set.
+	* integrate.c (function_cannot_inline_p): Forbid inlining
+	functions calling `longjmp'.
+
 2003-12-15  Nathan Sidwell  <nathan@codesourcery.com>
 
 	PR c++/11773

gcc/integrate.c

@@ -172,6 +172,9 @@ function_cannot_inline_p (tree fndecl)
   if (current_function_calls_alloca)
     return N_("function using alloca cannot be inline");
 
+  if (current_function_calls_longjmp)
+    return N_("function using longjmp cannot be inline");
+  
   if (current_function_calls_setjmp)
     return N_("function using setjmp cannot be inline");
 

gcc/tree.c

@@ -5011,6 +5011,11 @@ initializer_zerop (tree init)
 	    && ! REAL_VALUE_MINUS_ZERO (TREE_REAL_CST (TREE_IMAGPART (init))));
     case CONSTRUCTOR:
       {
+	/* Set is empty if it has no elements.  */
+        if ((TREE_CODE (TREE_TYPE (init)) == SET_TYPE)
+             && CONSTRUCTOR_ELTS (init))
+	  return false;
+
 	if (AGGREGATE_TYPE_P (TREE_TYPE (init)))
 	  {
 	    tree aggr_init = CONSTRUCTOR_ELTS (init);