[PATCH 1/6] Thread pointer built-in functions, core parts

[Chung-Lin Tang <cltang at codesourcery dot com>]

Core parts adding the new hooks. BUILT_IN_THREAD_POINTER and
BUILT_IN_SET_THREAD_POINTER are different hooks, as some targets only
implement one of them (thread pointer read).

Thanks,
Chung-Lin

        * targhooks.c (default_expand_builtin_thread_pointer): New.
        (default_expand_builtin_set_thread_pointer): New.
        * targhooks.h (default_expand_builtin_thread_pointer): New.
        (default_expand_builtin_set_thread_pointer): New.
        * target.def (expand_builtin_thread_pointer): New target hook.
        (expand_builtin_set_thread_pointer): New target hook.
        * builtins.c (expand_builtin_thread_pointer): New.
        (expand_builtin_set_thread_pointer): New.
        (expand_builtin): Add BUILT_IN_THREAD_POINTER,
        BUILT_IN_SET_THREAD_POINTER expand cases.
        * builtins.def (BUILT_IN_THREAD_POINTER):
        New __builtin_thread_pointer builtin.
        (BUILT_IN_SET_THREAD_POINTER):
        New __builtin_set_thread_pointer builtin.
        * doc/tm.texi.in: Add BUILT_IN_THREAD_POINTER,
        BUILT_IN_SET_THREAD_POINTER hook entries.
        * doc/tm.texi: Update.

Attachment: core.patch
Description: Text document