re PR c/36021 (__attribute__((alloc_size(n))) with function of no arguments causes...

2008-04-23  Richard Guenther  <rguenther@suse.de>

	PR middle-end/36021
	* c-common.c (handle_alloc_size_attribute): Use type_num_arguments.

	* gcc.dg/attr-alloc_size-2.c: New testcase.

From-SVN: r134595

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 50b7fc2f1856aba8263a0b7541a390059aee0726..f0fb8403400ec3a412869cfb07bb4123ddae9a40 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2008-04-23  Richard Guenther  <rguenther@suse.de>
+
+       PR middle-end/36021
+       * c-common.c (handle_alloc_size_attribute): Use type_num_arguments.
+
 2008-04-22  Tomas Bily  <tbily@suse.cz>
 
         * tree-cfg.c (verify_expr): Check for NON_LVALUE_EXPR as unreachable

diff --git a/gcc/c-common.c b/gcc/c-common.c
index 351c62831d397eb9350e01ab96c9b2e7b19d9bd6..a18752e7a7b86cb796876b2a0ead196e46c95d62 100644 (file)
--- a/gcc/c-common.c
+++ b/gcc/c-common.c
@@ -5941,12 +5941,7 @@ static tree
 handle_alloc_size_attribute (tree *node, tree ARG_UNUSED (name), tree args,
                             int ARG_UNUSED (flags), bool *no_add_attrs)
 {
-  tree params = TYPE_ARG_TYPES (*node);
-  unsigned arg_count = 0;
-
-  for (; TREE_CHAIN (params); params = TREE_CHAIN (params))
-    arg_count ++;
-
+  unsigned arg_count = type_num_arguments (*node);
   for (; args; args = TREE_CHAIN (args))
     {
       tree position = TREE_VALUE (args);

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 9493fef2e55e7ded595acaa7dd74eba12b1a2b4b..d5828e8708555f396c4df8e1d49153f8cb5e4407 100644 (file)
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2008-04-23  Richard Guenther  <rguenther@suse.de>
+
+       PR middle-end/36021
+       * gcc.dg/attr-alloc_size-2.c: New testcase.
+
 2008-04-23  Kai Tietz  <kai.tietz@onevision.com>
 
        * gcc.dg/20020919-1.c (loc_size_t): New type.

diff --git a/gcc/testsuite/gcc.dg/attr-alloc_size-2.c b/gcc/testsuite/gcc.dg/attr-alloc_size-2.c
new file mode 100644 (file)
index 0000000..3cac807
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/attr-alloc_size-2.c
@@ -0,0 +1,4 @@
+/* { dg-do compile } */
+
+char *foo() __attribute__((alloc_size(1))); /* { dg-warning "outside range" } */
+