ipa: Improve error handling for target_clone single value

	PR ipa/104533

gcc/c-family/ChangeLog:

	* c-attribs.cc (handle_target_clones_attribute): Use
	get_target_clone_attr_len and report warning soon.

gcc/ChangeLog:

	* multiple_target.cc (get_attr_len): Move to tree.c.
	(expand_target_clones): Remove single value checking.
	* tree.cc (get_target_clone_attr_len): New fn.
	* tree.h (get_target_clone_attr_len): Likewise.

gcc/testsuite/ChangeLog:

	* g++.target/i386/pr104533.C: New test.

1 files changed, 2 insertions, 0 deletions

diff --git a/gcc/tree.h b/gcc/tree.h
index 95334b0..36ceed5 100644
--- a/gcc/tree.h
+++ b/gcc/tree.h
@@ -6579,4 +6579,6 @@ extern unsigned fndecl_dealloc_argno (tree);
    object or pointer.  Otherwise return null.  */
 extern tree get_attr_nonstring_decl (tree, tree * = NULL);
 
+extern int get_target_clone_attr_len (tree);
+
 #endif  /* GCC_TREE_H  */