tree-ssa-live.c (clear_unused_block_pointer): Use explicitit (void) for function parameter.

2012-09-26  Dehao Chen  <dehao@google.com>

	* tree-ssa-live.c (clear_unused_block_pointer): Use explicitit (void)
	for function parameter.
	(remove_unused_locals): Don't use LOCATION_BLOCK if it is NULL.

From-SVN: r191779