2011-04-21  Easwaran Raman  <eraman@google.com>

	* gcc/cfgexpand.c (stack_var): Remove OFFSET...
	(add_stack_var): ...and its reference here...
	(expand_stack_vars): ...and here.
	(stack_var_cmp): Sort by descending order of size.
	(partition_stack_vars): Change heuristic.
	(union_stack_vars): Fix to reflect changes in
	partition_stack_vars.
	(dump_stack_var_partition): Add newline after each partition.

testsuite/Changelog:

2011-04-21  Easwaran Raman  <eraman@google.com>

	* gcc.dg/stack-layout-2.c: New test.

From-SVN: r172837