expr.c (expand_expr, [...]): Make sure cleanups live on the function_obstack as they are used by the...

	* expr.c (expand_expr, case COND_EXPR): Make sure cleanups live on
	the function_obstack as they are used by the exception handling code.
	(defer_cleanups_to): Ditto.
	(TRUTH_ANDIF_EXPR): Ditto.
	(TRUTH_ORIF_EXPR): Ditto.
Fixes eh43.C

From-SVN: r11033

1 files changed, 24 insertions, 0 deletions

diff --git a/gcc/expr.c b/gcc/expr.c
index f2ed65c..941ee6c 100644
--- a/gcc/expr.c
+++ b/gcc/expr.c
@@ -6406,6 +6406,10 @@ expand_expr (exp, target, tmode, modifier)
 	    /* ??? deprecated, use sequences instead.  */
 	    reorder_insns (NEXT_INSN (last), get_last_insn (), dest_right_flag);
 
+	    /* All cleanups must be on the function_obstack.  */
+	    push_obstacks_nochange ();
+	    resume_temporary_allocation ();
+
 	    /* convert flag, which is an rtx, into a tree. */
 	    cond = make_node (RTL_EXPR);
 	    TREE_TYPE (cond) = integer_type_node;
@@ -6422,6 +6426,8 @@ expand_expr (exp, target, tmode, modifier)
 				  left_cleanups, right_cleanups);
 	    new_cleanups = fold (new_cleanups);
 
+	    pop_obstacks ();
+
 	    /* Now add in the conditionalized cleanups. */
 	    cleanups_this_call
 	      = tree_cons (NULL_TREE, new_cleanups, cleanups_this_call);
@@ -9156,6 +9162,10 @@ defer_cleanups_to (old_cleanups)
       /* reverse them so that we can build them in the right order.  */
       cleanups = nreverse (cleanups);
 
+      /* All cleanups must be on the function_obstack.  */
+      push_obstacks_nochange ();
+      resume_temporary_allocation ();
+
       while (cleanups)
 	{
 	  if (new_cleanups)
@@ -9166,6 +9176,8 @@ defer_cleanups_to (old_cleanups)
 
 	  cleanups = TREE_CHAIN (cleanups);
 	}
+
+      pop_obstacks ();
     }
 
   return new_cleanups;
@@ -9361,6 +9373,10 @@ do_jump (exp, if_false_label, if_true_label)
 	    emit_move_insn (flag, const1_rtx);
 	    emit_insns (seq2);
 
+	    /* All cleanups must be on the function_obstack.  */
+	    push_obstacks_nochange ();
+	    resume_temporary_allocation ();
+
 	    /* convert flag, which is an rtx, into a tree. */
 	    cond = make_node (RTL_EXPR);
 	    TREE_TYPE (cond) = integer_type_node;
@@ -9373,6 +9389,8 @@ do_jump (exp, if_false_label, if_true_label)
 				  cleanups, integer_zero_node);
 	    new_cleanups = fold (new_cleanups);
 
+	    pop_obstacks ();
+
 	    /* Now add in the conditionalized cleanups. */
 	    cleanups_this_call
 	      = tree_cons (NULL_TREE, new_cleanups, cleanups_this_call);
@@ -9419,6 +9437,10 @@ do_jump (exp, if_false_label, if_true_label)
 	    emit_move_insn (flag, const1_rtx);
 	    emit_insns (seq2);
 
+	    /* All cleanups must be on the function_obstack.  */
+	    push_obstacks_nochange ();
+	    resume_temporary_allocation ();
+
 	    /* convert flag, which is an rtx, into a tree. */
 	    cond = make_node (RTL_EXPR);
 	    TREE_TYPE (cond) = integer_type_node;
@@ -9431,6 +9453,8 @@ do_jump (exp, if_false_label, if_true_label)
 				  cleanups, integer_zero_node);
 	    new_cleanups = fold (new_cleanups);
 
+	    pop_obstacks ();
+
 	    /* Now add in the conditionalized cleanups. */
 	    cleanups_this_call
 	      = tree_cons (NULL_TREE, new_cleanups, cleanups_this_call);