[calls.c] PR rtl-optimization/67226: Take into account pretend_args_size when checkin...

[calls.c] PR rtl-optimization/67226: Take into account pretend_args_size when checking stack offsets for sibcall optimisation

2015-11-26  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
            Bernd Schmidt  <bschmidt@redhat.com>

	PR rtl-optimization/67226
	* calls.c (store_one_arg): Take into account
	crtl->args.pretend_args_size when checking for overlap between
	arg->value and argblock + arg->locate.offset during sibcall
	optimization.

	* gcc.c-torture/execute/pr67226.c: New test.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@230929 138bc75d-0d04-0410-961f-82ee72b054a4