sparc-protos.h (sparc_skip_caller_unimp): New declaration.

sparc-protos.h (sparc_skip_caller_unimp): New declaration.

	* config/sparc/sparc-protos.h (sparc_skip_caller_unimp): New
	declaration.
	* config/sparc/sparc.c (SKIP_CALLERS_UNIMP_P): Delete.
	(sparc_skip_caller_unimp): New global variable.
	(sparc_function_epilogue): Set 'sparc_skip_caller_unimp'.
	Use it instead of SKIP_CALLERS_UNIMP_P.
	* config/sparc/sparc.md (call expander): Add sanity check.
	(call_address_struct_value_sp32): Re-sync with expander.
	(call_symbolic_struct_value_sp32): Likewise.
	(return peepholes): Use 'sparc_skip_caller_unimp' instead
	of custom predicate.

From-SVN: r81617