2009-03-12 Jing Yu <jingyu@google.com>

2009-03-12  Jing Yu  <jingyu@google.com>

	PR middle-end/39378
	* function.h: Move is_thunk from rtl_data structure to function
	structure.
	* cp/method.c (use_thunk): Change is_thunk from crtl to cfun.
	* varasm.c (assemble_start_function): Change is_thunk from crtl to
	cfun.
	* config/alpha/alpha.c: Change is_thunk from crtl to cfun.
	* config/rs6000/rs6000.c: Change is_thunk from crtl to cfun.
	* config/arm/arm.h: Change is_thunk from crtl to cfun.
	* testsuite/g++.dg/inherit/thunk10.C: New file.

	Patch submitted by Doug Kwan <dougkwan@google.com>

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@144918 138bc75d-0d04-0410-961f-82ee72b054a4