re PR target/36834 (structure return ABI for windows targets differs from native...

re PR target/36834 (structure return ABI for windows targets differs from native MSVC)

2010-12-18  Kai Tietz  <kai.tietz@onevision.com>

	PR target/36834
	* config/i386/i386.c (ix86_keep_aggregate_return_pointer):
	New local function.
	(ix86_return_pops_args): Use ix86_keep_aggregate_return_pointer
	function instead of KEEP_AGGREGATE_RETURN_POINTER.
	(ix86_handle_callee_pop_aggregate_return): New handler.
	(ix86_attribute_table): Add new attribute
	callee_pop_aggregate_return.
	* doc/extend.texi (callee_pop_aggregate_return): Add
	attribute documentation.

2010-12-18  Kai Tietz  <kai.tietz@onevision.com>

	PR target/36834
	* gcc.target/i386/aggregate-ret1.c: New.
	* gcc.target/i386/aggregate-ret2.c: New.

From-SVN: r168019