* target.h (gcc_target): New field allocate_initial_value.
	* target-def.h (TARGET_ALLOCATE_INITIAL_VALUE): New macro.
	(TARGET_INITIALIZER): Include it.
	* integrate.c (allocate_initial_values): Use
	targetm.allocate_initial_value.
	* system.h: Poison ALLOCATE_INITIAL_VALUE.
	* config/sh/sh-protos.h (sh_pr_n_sets): Delete.
	* config/sh/sh.c (sh_pr_n_sets): Make it static.
	(sh_allocate_initila_value): New function.
	(TARGET_ALLOCATE_INITIAL_VALUE): Override default.
	* config/sh/sh.h (ALLOCATE_INITIAL_VALUE): Delete.
	* doc/tm.texi (TARGET_ALLOCATE_INITIAL_VALUE): Rename and
	update from ALLOCATE_INITIAL_VALUE.

From-SVN: r101411