tm.texi (TARGET_STRUCT_VALUE_RTX): Document new value 2 for incoming.

gcc/

2006-04-04  Carlos O'Donell  <carlos@codesourcery.com>

	* doc/tm.texi (TARGET_STRUCT_VALUE_RTX): Document
	new value 2 for incoming.
	* function.c (expand_function_start): Call struct_value_rtx
	with incoming as 2.
	* config/sparc/sparc.md: Comment updated_return.
	* config/sparc/sparc.opt: Add -mstd-struct-return option.
	* config/sparc/sparc.c (sparc_struct_value_rtx): Use standard
	struct return if sparc_std_struct_return and incoming is 2.
	(print_operand): Do not adjust return if
	sparc_std_struct_return.

gcc/testsuite/

2006-04-04  Carlos O'Donell  <carlos@codesourcery.com>

	* gcc.target/sparc/struct-ret-check.c: New test.

From-SVN: r112672