* cse.c (cse_find_path): Don't wrap a gcc_assert in ENABLE_CHECKING.

	(cse_extended_basic_block): When truncating a path while processing
	it, make sure to clear the visited bit on the basic blocks in the
	truncated part of the path.
	(cse_main): Use reverse completion order, not DFS order, to walk
	the CFG.
	(gate_handle_cse): Revert erroneous commit of a counter.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@119985 138bc75d-0d04-0410-961f-82ee72b054a4