PR c++/20408 - unnecessary code for empty struct.

Here initializing the argument from a TARGET_EXPR isn't an empty class
copy even though the type is !TREE_ADDRESSABLE, so we should check
simple_empty_class_p.

	* call.c (build_call_a): Use simple_empty_class_p.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@271523 138bc75d-0d04-0410-961f-82ee72b054a4
5 files changed