GitLab

	* df-core.c (df_get_bb_dirty): Use df_lr if df_live is NULL,
	assume df and df_lr are not NULL.

	* gcc.dg/pr48156.c: New test.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@171195 138bc75d-0d04-0410-961f-82ee72b054a4