r177268 - in /trunk/gcc: ChangeLog emit-rtl.c j...

[amodra@gcc.gnu.org]

Author: amodra
Date: Wed Aug  3 11:48:21 2011
New Revision: 177268

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=177268
Log:
	PR rtl-optimization/49941
	* jump.c (mark_jump_label): Comment.
	(mark_jump_label_1): Set JUMP_LABEL for return jumps.
	* emit-rtl.c (copy_rtx_if_shared_1, copy_insn_1): Leave RETURN shared.
	(mark_used_flags): Don't mark RETURN.


Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/emit-rtl.c
    trunk/gcc/jump.c