[PATCH] Remove PREFERRED_OUTPUT_RELOAD_CLASS macro

[Anatoly Sokolov]

Hi.

  No one back end does not use PREFERRED_OUTPUT_RELOAD_CLASS macro now, this
patch remove it. The TARGET_PREFERRED_RELOAD_CLASS target hook should be use 
instead.

  The patch has been bootstrapped on and regression tested on
x86_64-unknown-linux-gnu for c and c++.

  This patch is pre-approved and should be committed within a week if no
objections.

        * doc/tm.texi.in (PREFERRED_OUTPUT_RELOAD_CLASS): Remove.
        * doc/tm.texi: Regenerate.
        * targhooks.c (default_preferred_output_reload_class): Don't use
        PREFERRED_OUTPUT_RELOAD_CLASS macro.
        * system.h (PREFERRED_OUTPUT_RELOAD_CLASS): Poison.


Index: gcc/doc/tm.texi
===================================================================
--- gcc/doc/tm.texi     (revision 177791)
+++ gcc/doc/tm.texi     (working copy)
@@ -2601,15 +2601,6 @@
 the SSE registers (and vice versa).
 @end defmac
 
-@defmac PREFERRED_OUTPUT_RELOAD_CLASS (@var{x}, @var{class})
-Like @code{PREFERRED_RELOAD_CLASS}, but for output reloads instead of
-input reloads.  If you don't define this macro, the default is to use
-@var{class}, unchanged.
-
-You can also use @code{PREFERRED_OUTPUT_RELOAD_CLASS} to discourage
-reload from using some alternatives, like @code{PREFERRED_RELOAD_CLASS}.
-@end defmac
-
 @deftypefn {Target Hook} reg_class_t TARGET_PREFERRED_OUTPUT_RELOAD_CLASS (rtx @var{x}, reg_class_t @var{rclass})
 Like @code{TARGET_PREFERRED_RELOAD_CLASS}, but for output reloads instead of
 input reloads.
Index: gcc/doc/tm.texi.in
===================================================================
--- gcc/doc/tm.texi.in  (revision 177791)
+++ gcc/doc/tm.texi.in  (working copy)
@@ -2587,15 +2587,6 @@
 the SSE registers (and vice versa).
 @end defmac
 
-@defmac PREFERRED_OUTPUT_RELOAD_CLASS (@var{x}, @var{class})
-Like @code{PREFERRED_RELOAD_CLASS}, but for output reloads instead of
-input reloads.  If you don't define this macro, the default is to use
-@var{class}, unchanged.
-
-You can also use @code{PREFERRED_OUTPUT_RELOAD_CLASS} to discourage
-reload from using some alternatives, like @code{PREFERRED_RELOAD_CLASS}.
-@end defmac
-
 @hook TARGET_PREFERRED_OUTPUT_RELOAD_CLASS
 Like @code{TARGET_PREFERRED_RELOAD_CLASS}, but for output reloads instead of
 input reloads.
Index: gcc/targhooks.c
===================================================================
--- gcc/targhooks.c     (revision 177791)
+++ gcc/targhooks.c     (working copy)
@@ -1287,11 +1287,7 @@
 default_preferred_output_reload_class (rtx x ATTRIBUTE_UNUSED,
                                       reg_class_t rclass)
 {
-#ifdef PREFERRED_OUTPUT_RELOAD_CLASS
-  return PREFERRED_OUTPUT_RELOAD_CLASS (x, (enum reg_class) rclass);
-#else
   return rclass;
-#endif
 }
 
 /* The default implementation of TARGET_PREFERRED_RENAME_CLASS.  */
Index: gcc/system.h
===================================================================
--- gcc/system.h        (revision 177791)
+++ gcc/system.h        (working copy)
@@ -866,7 +866,8 @@
        USING_SVR4_H SVR4_ASM_SPEC FUNCTION_ARG FUNCTION_ARG_ADVANCE       \
        FUNCTION_INCOMING_ARG IRA_COVER_CLASSES TARGET_VERSION             \
        MACHINE_TYPE TARGET_HAS_TARGETCM ASM_OUTPUT_BSS                    \
-       SETJMP_VIA_SAVE_AREA FORBIDDEN_INC_DEC_CLASSES
+       SETJMP_VIA_SAVE_AREA FORBIDDEN_INC_DEC_CLASSES                     \
+       PREFERRED_OUTPUT_RELOAD_CLASS
 
 /* Hooks that are no longer used.  */
  #pragma GCC poison LANG_HOOKS_FUNCTION_MARK LANG_HOOKS_FUNCTION_FREE  \

Anatoly.