* doc/tm.texi (defmac SMALL_REGISTER_CLASSES): Remove.

	(TARGET_SMALL_REGISTER_CLASSES_FOR_MODE_P): Add documentation,
	based on the above, for new target hook.

	* hooks.c (hook_bool_mode_true): New generic hook.
	* hooks.h (hook_bool_mode_true): Add prototype.

	* target.h (struct gcc_target): Add small_register_classes_for_mode_p
	target hook.
	* target-def.h (TARGET_SMALL_REGISTER_CLASSES_FOR_MODE_P): New default
	target hook, set to hook_bool_mode_false.
	* regs.h: Remove default definition of SMALL_REGISTER_CLASSES.
	* reload.c (push_secondary_reload): Replace SMALL_REGISTER_CLASSES
	with targetm.small_register_classes_for_mode_p.
	(find_reusable_reload): Likewise.
	(combine_reloads): Likewise.
	* reload1.c (reload_as_needed): Likewise.
	* cse.c (approx_reg_cost_1, hash_rtx_cb): Likewise.
	* ifcvt.c (noce_process_if_block, check_cond_move_block,
	dead_or_predicable): Likewise.
	* regmove.c (optimize_reg_copy_1): Likewise.
	* calls.c (prepare_call_address): Likewise.
	(precompute_register_parameters): Likewise.

	* config/sh/sh.h: Replace SMALL_REGISTER_CLASSES with new target
	hook definition.
	* config/sh/sh.c (sh_small_register_classes_for_mode_p): Add
	implementation of the hook that considers all register classes
	small except for SH64.
	(sh_override_options): Use the new hook.
	* config/sh/sh-protos.h (sh_small_register_classes_for_mode_p):
	Add prototype.

	* config/arm/arm.h: Replace SMALL_REGISTER_CLASSES with new target
	hook definition.
	* config/arm/arm.c (arm_small_register_classes_for_mode_p): Add
	implementation of the hook that considers all register classes
	small for THUMB1.
	* config/arm/arm-protos.h (arm_small_register_classes_for_mode_p):
	Add prototype.

	* config/mips/mips.h: Replace SMALL_REGISTER_CLASSES with new target
	hook definition.
	* config/mips/mips.c (mips_small_register_classes_for_mode_p): Add
	implementation of the hook that considers all register classes
	small for MIPS16.
	* config/mips/mips-protos.h (mips_small_register_classes_for_mode_p):
	Add prototype.

	* config/i386/i386.h: Replace SMALL_REGISTER_CLASSES with new target
	hook definition.
	* config/m32c/m32c.h: Likewise.
	* config/pdp11/pdp11.h: Likewise.
	* config/avr/avr.h: Likewise.
	* config/xtensa/xtensa.h: Likewise.
	* config/m68hc11/m68hc11.h: Likewise.
	* config/mn10300/mn10300.h: Likewise.
	* config/mcore/mcore.h: Likewise.
	* config/h8300/h8300.h: Likewise.
	* config/bfin/bfin.h: Likewise.

	* config/iq2000/iq2000.h: Remove SMALL_REGISTER_CLASSES definition.
	* config/rx/rx.h: Remove SMALL_REGISTER_CLASSES definition.




git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@158997 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 4 insertions, 2 deletions

diff --git a/gcc/calls.c b/gcc/calls.c
index 496ec602bc6..9c51f1a5a74 100644
--- a/gcc/calls.c
+++ b/gcc/calls.c
@@ -175,7 +175,8 @@ prepare_call_address (tree fndecl, rtx funexp, rtx static_chain_value,
   if (GET_CODE (funexp) != SYMBOL_REF)
     /* If we are using registers for parameters, force the
        function address into a register now.  */
-    funexp = ((SMALL_REGISTER_CLASSES && reg_parm_seen)
+    funexp = ((reg_parm_seen
+	       && targetm.small_register_classes_for_mode_p (FUNCTION_MODE))
 	      ? force_not_mem (memory_address (FUNCTION_MODE, funexp))
 	      : memory_address (FUNCTION_MODE, funexp));
   else if (! sibcallp)
@@ -711,7 +712,8 @@ precompute_register_parameters (int num_actuals, struct arg_data *args,
 		 && args[i].mode != BLKmode
 		 && rtx_cost (args[i].value, SET, optimize_insn_for_speed_p ())
 		    > COSTS_N_INSNS (1)
-		 && ((SMALL_REGISTER_CLASSES && *reg_parm_seen)
+		 && ((*reg_parm_seen
+		      && targetm.small_register_classes_for_mode_p (args[i].mode))
 		     || optimize))
 	  args[i].value = copy_to_mode_reg (args[i].mode, args[i].value);
       }