* 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
