Fix simdclones

Fix simdclones

gcc/ChangeLog:

	PR ipa/97576
	* cgraphclones.c (cgraph_node::materialize_clone): Clear stmt
	references.
	* cgraphunit.c (mark_functions_to_output): Do not clear them here.
	* ipa-inline-transform.c (inline_transform): Clear stmt references.
	* symtab.c (symtab_node::clear_stmts_in_references): Make recursive
	for clones.
	* tree-ssa-structalias.c (ipa_pta_execute): Do not clear references.

gcc/testsuite/ChangeLog:

	PR ipa/97576
	* gcc.c-torture/compile/pr97576.c: New test.