jump.c: Convert prototypes to ISO C90.

	* jump.c: Convert prototypes to ISO C90.
	* langhooks-def.h: Likewise.  Add extern to prototypes.
	* langhooks.c: Likewise.
	* langhooks.h: Likewise.
	* lcm.c: Likewise.
	* local-alloc.c: Likewise.
	* loop-init.c: Likewise.
	* loop-unroll.c: Likewise.
	* loop-unswitch.c: Likewise.
	* loop.c: Likewise.
	* loop.h: Likewise. Add extern to prototypes.
	* machmode.h: Likewise.
	* main.c: Likewise.
	* mbchar.c: Likewise.
	* mbchar.h: Likewise.
	* mkdeps.c: Likewise.
	* mkdeps.h: Likewise.
	* optabs.c: Likewise.
	* optabs.h: Likewise.
	* output.h: Likewise.
	* gccspec.c: Likwise.
	* postreload.c: Likewise.
	* prefix.c: Likewise.
	* prefix.h: Likewise.
	* print-rtl.c: Likewise.
	* print-tree.c: Likewise.
	* profile.c: Likewise.
	* read-rtl.c: Likewise.
	* real.c: Likewise.
	* real.h: Likewise.
	* recog.c: Likewise.
	* recog.h: Likewise.
	* reg-stack.c: Likewise.
	* regclass.c: Likewise.
	* regmove.c: Likewise.
	* regrename.c: Likewise.
	* regs.h: Likewise.
	* reload.c: Likewise.
	* reload.h: Likewise.
	* reload1.c: Likewise.
	* reorg.c: Likewise.
	* resource.c: Likewise.
	* resource.h: Likewise.
	* rtl-error.c: Likewise.
	* rtl.c: Likewise.
	* rtl.h: Likewise.
	* rtlanal.c: Likewise.

From-SVN: r68998

1 files changed, 439 insertions, 486 deletions

diff --git a/gcc/rtl.h b/gcc/rtl.h
index 827b178..10b4d5b 100644
--- a/gcc/rtl.h
+++ b/gcc/rtl.h
@@ -339,23 +339,23 @@ struct rtvec_def GTY(()) {
 				  __FUNCTION__);			\
      &_rtvec->elem[_i]; }))
 
-extern void rtl_check_failed_bounds PARAMS ((rtx, int,
-					   const char *, int, const char *))
+extern void rtl_check_failed_bounds (rtx, int, const char *, int,
+				     const char *)
     ATTRIBUTE_NORETURN;
-extern void rtl_check_failed_type1 PARAMS ((rtx, int, int,
-					  const char *, int, const char *))
+extern void rtl_check_failed_type1 (rtx, int, int, const char *, int,
+				    const char *)
     ATTRIBUTE_NORETURN;
-extern void rtl_check_failed_type2 PARAMS ((rtx, int, int, int,
-					  const char *, int, const char *))
+extern void rtl_check_failed_type2 (rtx, int, int, int, const char *,
+				    int, const char *)
     ATTRIBUTE_NORETURN;
-extern void rtl_check_failed_code1 PARAMS ((rtx, enum rtx_code,
-					  const char *, int, const char *))
+extern void rtl_check_failed_code1 (rtx, enum rtx_code, const char *,
+				    int, const char *)
     ATTRIBUTE_NORETURN;
-extern void rtl_check_failed_code2 PARAMS ((rtx, enum rtx_code, enum rtx_code,
-					  const char *, int, const char *))
+extern void rtl_check_failed_code2 (rtx, enum rtx_code, enum rtx_code,
+				    const char *, int, const char *)
     ATTRIBUTE_NORETURN;
-extern void rtvec_check_failed_bounds PARAMS ((rtvec, int,
-					     const char *, int, const char *))
+extern void rtvec_check_failed_bounds (rtvec, int, const char *, int,
+				       const char *)
     ATTRIBUTE_NORETURN;
 
 #else   /* not ENABLE_RTL_CHECKING */
@@ -445,8 +445,8 @@ extern void rtvec_check_failed_bounds PARAMS ((rtvec, int,
 			     __FUNCTION__);				\
    _rtx; })
 
-extern void rtl_check_failed_flag PARAMS ((const char *, rtx, const char *,
-					   int, const char *))
+extern void rtl_check_failed_flag (const char *, rtx, const char *,
+				   int, const char *)
     ATTRIBUTE_NORETURN
     ;
 
@@ -1031,16 +1031,12 @@ enum label_kind
 #define SUBREG_BYTE(RTX) XCUINT (RTX, 1, SUBREG)
 
 /* in rtlanal.c */
-extern unsigned int subreg_lsb		PARAMS ((rtx));
-extern unsigned int subreg_regno_offset	PARAMS ((unsigned int,
-							 enum machine_mode,
-							 unsigned int,
-							 enum machine_mode));
-extern bool subreg_offset_representable_p	PARAMS ((unsigned int,
-							 enum machine_mode,
-							 unsigned int,
-							 enum machine_mode));
-extern unsigned int subreg_regno	PARAMS ((rtx));
+extern unsigned int subreg_lsb (rtx);
+extern unsigned int subreg_regno_offset	(unsigned int, enum machine_mode,
+					 unsigned int, enum machine_mode);
+extern bool subreg_offset_representable_p (unsigned int, enum machine_mode,
+					   unsigned int, enum machine_mode);
+extern unsigned int subreg_regno (rtx);
 
 /* 1 if RTX is a subreg containing a reg that is already known to be
    sign- or zero-extended from the mode of the subreg to the mode of
@@ -1398,7 +1394,7 @@ extern int generating_concat_p;
 /* Generally useful functions.  */
 
 /* In expmed.c */
-extern int ceil_log2			PARAMS ((unsigned HOST_WIDE_INT));
+extern int ceil_log2 (unsigned HOST_WIDE_INT);
 
 #define plus_constant(X, C) plus_constant_wide ((X), (HOST_WIDE_INT) (C))
 
@@ -1407,237 +1403,211 @@ extern rtx expand_builtin_expect_jump (tree, rtx, rtx);
 extern void purge_builtin_constant_p (void);
 
 /* In explow.c */
-extern void set_stack_check_libfunc PARAMS ((rtx));
-extern HOST_WIDE_INT trunc_int_for_mode	PARAMS ((HOST_WIDE_INT,
-					       enum machine_mode));
-extern rtx plus_constant_wide		 PARAMS ((rtx, HOST_WIDE_INT));
-extern rtx plus_constant_for_output_wide PARAMS ((rtx, HOST_WIDE_INT));
-extern void optimize_save_area_alloca	PARAMS ((rtx));
+extern void set_stack_check_libfunc (rtx);
+extern HOST_WIDE_INT trunc_int_for_mode	(HOST_WIDE_INT, enum machine_mode);
+extern rtx plus_constant_wide (rtx, HOST_WIDE_INT);
+extern rtx plus_constant_for_output_wide (rtx, HOST_WIDE_INT);
+extern void optimize_save_area_alloca (rtx);
 
 /* In emit-rtl.c */
-extern rtx gen_rtx			PARAMS ((enum rtx_code,
-						 enum machine_mode, ...));
-extern rtvec gen_rtvec			PARAMS ((int, ...));
-extern rtx copy_insn_1			PARAMS ((rtx));
-extern rtx copy_insn			PARAMS ((rtx));
-extern rtx gen_int_mode			PARAMS ((HOST_WIDE_INT,
-						 enum machine_mode));
-extern rtx emit_copy_of_insn_after	PARAMS ((rtx, rtx));
-extern void set_reg_attrs_from_mem	PARAMS ((rtx, rtx));
-extern void set_mem_attrs_from_reg	PARAMS ((rtx, rtx));
-extern void set_reg_attrs_for_parm	PARAMS ((rtx, rtx));
+extern rtx gen_rtx (enum rtx_code, enum machine_mode, ...);
+extern rtvec gen_rtvec (int, ...);
+extern rtx copy_insn_1 (rtx);
+extern rtx copy_insn (rtx);
+extern rtx gen_int_mode (HOST_WIDE_INT, enum machine_mode);
+extern rtx emit_copy_of_insn_after (rtx, rtx);
+extern void set_reg_attrs_from_mem (rtx, rtx);
+extern void set_mem_attrs_from_reg (rtx, rtx);
+extern void set_reg_attrs_for_parm (rtx, rtx);
 
 /* In rtl.c */
-extern rtx rtx_alloc			PARAMS ((RTX_CODE));
-extern rtvec rtvec_alloc		PARAMS ((int));
-extern rtx copy_rtx			PARAMS ((rtx));
+extern rtx rtx_alloc (RTX_CODE);
+extern rtvec rtvec_alloc (int);
+extern rtx copy_rtx (rtx);
 
 /* In emit-rtl.c */
-extern rtx copy_rtx_if_shared		PARAMS ((rtx));
+extern rtx copy_rtx_if_shared (rtx);
 
 /* In rtl.c */
-extern rtx copy_most_rtx		PARAMS ((rtx, rtx));
-extern rtx shallow_copy_rtx		PARAMS ((rtx));
-extern int rtx_equal_p                  PARAMS ((rtx, rtx));
+extern rtx copy_most_rtx (rtx, rtx);
+extern rtx shallow_copy_rtx (rtx);
+extern int rtx_equal_p (rtx, rtx);
 
 /* In emit-rtl.c */
-extern rtvec gen_rtvec_v		PARAMS ((int, rtx *));
-extern rtx gen_reg_rtx			PARAMS ((enum machine_mode));
-extern rtx gen_rtx_REG_offset		PARAMS ((rtx, enum machine_mode,
-						 unsigned int, int));
-extern rtx gen_label_rtx		PARAMS ((void));
-extern int subreg_hard_regno		PARAMS ((rtx, int));
-extern rtx gen_lowpart_common		PARAMS ((enum machine_mode, rtx));
-extern rtx gen_lowpart			PARAMS ((enum machine_mode, rtx));
+extern rtvec gen_rtvec_v (int, rtx *);
+extern rtx gen_reg_rtx (enum machine_mode);
+extern rtx gen_rtx_REG_offset (rtx, enum machine_mode, unsigned int, int);
+extern rtx gen_label_rtx (void);
+extern int subreg_hard_regno (rtx, int);
+extern rtx gen_lowpart_common (enum machine_mode, rtx);
+extern rtx gen_lowpart (enum machine_mode, rtx);
 
 /* In cse.c */
-extern rtx gen_lowpart_if_possible	PARAMS ((enum machine_mode, rtx));
+extern rtx gen_lowpart_if_possible (enum machine_mode, rtx);
 
 /* In emit-rtl.c */
-extern rtx gen_highpart			PARAMS ((enum machine_mode, rtx));
-extern rtx gen_highpart_mode		PARAMS ((enum machine_mode,
-						 enum machine_mode, rtx));
-extern rtx gen_realpart			PARAMS ((enum machine_mode, rtx));
-extern rtx gen_imagpart			PARAMS ((enum machine_mode, rtx));
-extern rtx operand_subword		PARAMS ((rtx, unsigned int, int,
-						 enum machine_mode));
-extern rtx constant_subword		PARAMS ((rtx, int,
-						 enum machine_mode));
+extern rtx gen_highpart (enum machine_mode, rtx);
+extern rtx gen_highpart_mode (enum machine_mode, enum machine_mode, rtx);
+extern rtx gen_realpart (enum machine_mode, rtx);
+extern rtx gen_imagpart (enum machine_mode, rtx);
+extern rtx operand_subword (rtx, unsigned int, int, enum machine_mode);
+extern rtx constant_subword (rtx, int, enum machine_mode);
 
 /* In emit-rtl.c */
-extern rtx operand_subword_force	PARAMS ((rtx, unsigned int,
-						 enum machine_mode));
-extern int subreg_lowpart_p		PARAMS ((rtx));
-extern unsigned int subreg_lowpart_offset PARAMS ((enum machine_mode,
-						   enum machine_mode));
-extern unsigned int subreg_highpart_offset PARAMS ((enum machine_mode,
-						    enum machine_mode));
-extern rtx make_safe_from		PARAMS ((rtx, rtx));
-extern rtx convert_memory_address	PARAMS ((enum machine_mode, rtx));
-extern rtx get_insns			PARAMS ((void));
-extern const char *get_insn_name	PARAMS ((int));
-extern rtx get_last_insn		PARAMS ((void));
-extern rtx get_last_insn_anywhere	PARAMS ((void));
-extern rtx get_first_nonnote_insn	PARAMS ((void));
-extern rtx get_last_nonnote_insn	PARAMS ((void));
-extern void start_sequence		PARAMS ((void));
-extern void push_to_sequence		PARAMS ((rtx));
-extern void end_sequence		PARAMS ((void));
-extern void push_to_full_sequence	PARAMS ((rtx, rtx));
-extern void end_full_sequence		PARAMS ((rtx*, rtx*));
+extern rtx operand_subword_force (rtx, unsigned int, enum machine_mode);
+extern int subreg_lowpart_p (rtx);
+extern unsigned int subreg_lowpart_offset (enum machine_mode,
+					   enum machine_mode);
+extern unsigned int subreg_highpart_offset (enum machine_mode,
+					    enum machine_mode);
+extern rtx make_safe_from (rtx, rtx);
+extern rtx convert_memory_address (enum machine_mode, rtx);
+extern rtx get_insns (void);
+extern const char *get_insn_name (int);
+extern rtx get_last_insn (void);
+extern rtx get_last_insn_anywhere (void);
+extern rtx get_first_nonnote_insn (void);
+extern rtx get_last_nonnote_insn (void);
+extern void start_sequence (void);
+extern void push_to_sequence (rtx);
+extern void end_sequence (void);
+extern void push_to_full_sequence (rtx, rtx);
+extern void end_full_sequence (rtx*, rtx*);
 
 /* In varasm.c  */
-extern rtx immed_double_const		PARAMS ((HOST_WIDE_INT, HOST_WIDE_INT, enum machine_mode));
-extern rtx mem_for_const_double		PARAMS ((rtx));
-extern rtx force_const_mem		PARAMS ((enum machine_mode, rtx));
+extern rtx immed_double_const (HOST_WIDE_INT, HOST_WIDE_INT,
+			       enum machine_mode);
+extern rtx mem_for_const_double (rtx);
+extern rtx force_const_mem (enum machine_mode, rtx);
 
 /* In varasm.c  */
-extern rtx get_pool_constant		PARAMS ((rtx));
-extern rtx get_pool_constant_mark	PARAMS ((rtx, bool *));
-extern enum machine_mode get_pool_mode	PARAMS ((rtx));
-extern rtx get_pool_constant_for_function	PARAMS ((struct function *, rtx));
-extern enum machine_mode get_pool_mode_for_function	PARAMS ((struct function *, rtx));
-extern int get_pool_offset		PARAMS ((rtx));
-extern rtx simplify_subtraction		PARAMS ((rtx));
+extern rtx get_pool_constant (rtx);
+extern rtx get_pool_constant_mark (rtx, bool *);
+extern enum machine_mode get_pool_mode (rtx);
+extern rtx get_pool_constant_for_function (struct function *, rtx);
+extern enum machine_mode get_pool_mode_for_function (struct function *, rtx);
+extern int get_pool_offset (rtx);
+extern rtx simplify_subtraction (rtx);
 
 /* In function.c  */
-extern rtx assign_stack_local		PARAMS ((enum machine_mode,
-					       HOST_WIDE_INT, int));
-extern rtx assign_stack_temp		PARAMS ((enum machine_mode,
-					       HOST_WIDE_INT, int));
-extern rtx assign_stack_temp_for_type	PARAMS ((enum machine_mode,
-						 HOST_WIDE_INT, int, tree));
-extern rtx assign_temp			PARAMS ((tree, int, int, int));
+extern rtx assign_stack_local (enum machine_mode, HOST_WIDE_INT, int);
+extern rtx assign_stack_temp (enum machine_mode, HOST_WIDE_INT, int);
+extern rtx assign_stack_temp_for_type (enum machine_mode,
+				       HOST_WIDE_INT, int, tree);
+extern rtx assign_temp (tree, int, int, int);
 
 /* In emit-rtl.c */
-extern rtx emit_insn_before		PARAMS ((rtx, rtx));
-extern rtx emit_insn_before_setloc	PARAMS ((rtx, rtx, int));
-extern rtx emit_jump_insn_before	PARAMS ((rtx, rtx));
-extern rtx emit_jump_insn_before_setloc	PARAMS ((rtx, rtx, int));
-extern rtx emit_call_insn_before	PARAMS ((rtx, rtx));
-extern rtx emit_call_insn_before_setloc	PARAMS ((rtx, rtx, int));
-extern rtx emit_barrier_before		PARAMS ((rtx));
-extern rtx emit_label_before		PARAMS ((rtx, rtx));
-extern rtx emit_note_before		PARAMS ((int, rtx));
-extern rtx emit_insn_after		PARAMS ((rtx, rtx));
-extern rtx emit_insn_after_setloc	PARAMS ((rtx, rtx, int));
-extern rtx emit_jump_insn_after		PARAMS ((rtx, rtx));
-extern rtx emit_jump_insn_after_setloc	PARAMS ((rtx, rtx, int));
-extern rtx emit_call_insn_after		PARAMS ((rtx, rtx));
-extern rtx emit_call_insn_after_setloc	PARAMS ((rtx, rtx, int));
-extern rtx emit_barrier_after		PARAMS ((rtx));
-extern rtx emit_label_after		PARAMS ((rtx, rtx));
-extern rtx emit_note_after		PARAMS ((int, rtx));
-extern rtx emit_note_copy_after		PARAMS ((rtx, rtx));
-extern rtx emit_insn			PARAMS ((rtx));
-extern rtx emit_jump_insn		PARAMS ((rtx));
-extern rtx emit_call_insn		PARAMS ((rtx));
-extern rtx emit_label			PARAMS ((rtx));
-extern rtx emit_barrier			PARAMS ((void));
-extern rtx emit_note			PARAMS ((int));
-extern rtx emit_note_copy		PARAMS ((rtx));
-extern rtx emit_line_note		PARAMS ((const char *, int));
-extern rtx emit_line_note_force		PARAMS ((const char *, int));
-extern rtx make_insn_raw		PARAMS ((rtx));
-extern void add_function_usage_to       PARAMS ((rtx, rtx));
-extern rtx last_call_insn               PARAMS ((void));
-extern rtx previous_insn		PARAMS ((rtx));
-extern rtx next_insn			PARAMS ((rtx));
-extern rtx prev_nonnote_insn		PARAMS ((rtx));
-extern rtx next_nonnote_insn		PARAMS ((rtx));
-extern rtx prev_real_insn		PARAMS ((rtx));
-extern rtx next_real_insn		PARAMS ((rtx));
-extern rtx prev_active_insn		PARAMS ((rtx));
-extern rtx next_active_insn		PARAMS ((rtx));
-extern int active_insn_p		PARAMS ((rtx));
-extern rtx prev_label			PARAMS ((rtx));
-extern rtx next_label			PARAMS ((rtx));
-extern rtx next_cc0_user		PARAMS ((rtx));
-extern rtx prev_cc0_setter		PARAMS ((rtx));
+extern rtx emit_insn_before (rtx, rtx);
+extern rtx emit_insn_before_setloc (rtx, rtx, int);
+extern rtx emit_jump_insn_before (rtx, rtx);
+extern rtx emit_jump_insn_before_setloc (rtx, rtx, int);
+extern rtx emit_call_insn_before (rtx, rtx);
+extern rtx emit_call_insn_before_setloc (rtx, rtx, int);
+extern rtx emit_barrier_before (rtx);
+extern rtx emit_label_before (rtx, rtx);
+extern rtx emit_note_before (int, rtx);
+extern rtx emit_insn_after (rtx, rtx);
+extern rtx emit_insn_after_setloc (rtx, rtx, int);
+extern rtx emit_jump_insn_after (rtx, rtx);
+extern rtx emit_jump_insn_after_setloc (rtx, rtx, int);
+extern rtx emit_call_insn_after (rtx, rtx);
+extern rtx emit_call_insn_after_setloc (rtx, rtx, int);
+extern rtx emit_barrier_after (rtx);
+extern rtx emit_label_after (rtx, rtx);
+extern rtx emit_note_after (int, rtx);
+extern rtx emit_note_copy_after (rtx, rtx);
+extern rtx emit_insn (rtx);
+extern rtx emit_jump_insn (rtx);
+extern rtx emit_call_insn (rtx);
+extern rtx emit_label (rtx);
+extern rtx emit_barrier (void);
+extern rtx emit_note (int);
+extern rtx emit_note_copy (rtx);
+extern rtx emit_line_note (const char *, int);
+extern rtx emit_line_note_force (const char *, int);
+extern rtx make_insn_raw (rtx);
+extern void add_function_usage_to (rtx, rtx);
+extern rtx last_call_insn (void);
+extern rtx previous_insn (rtx);
+extern rtx next_insn (rtx);
+extern rtx prev_nonnote_insn (rtx);
+extern rtx next_nonnote_insn (rtx);
+extern rtx prev_real_insn (rtx);
+extern rtx next_real_insn (rtx);
+extern rtx prev_active_insn (rtx);
+extern rtx next_active_insn (rtx);
+extern int active_insn_p (rtx);
+extern rtx prev_label (rtx);
+extern rtx next_label (rtx);
+extern rtx next_cc0_user (rtx);
+extern rtx prev_cc0_setter (rtx);
 
 /* In cfglayout.c  */
-extern tree choose_inner_scope		PARAMS ((tree, tree));
-extern int insn_line			PARAMS ((rtx));
-extern const char * insn_file		PARAMS ((rtx));
+extern tree choose_inner_scope (tree, tree);
+extern int insn_line (rtx);
+extern const char * insn_file (rtx);
 extern int prologue_locator, epilogue_locator;
 
 /* In jump.c */
-extern enum rtx_code reverse_condition	PARAMS ((enum rtx_code));
-extern enum rtx_code reverse_condition_maybe_unordered PARAMS ((enum rtx_code));
-extern enum rtx_code swap_condition	PARAMS ((enum rtx_code));
-extern enum rtx_code unsigned_condition	PARAMS ((enum rtx_code));
-extern enum rtx_code signed_condition	PARAMS ((enum rtx_code));
-extern void mark_jump_label		PARAMS ((rtx, rtx, int));
-extern void cleanup_barriers		PARAMS ((void));
+extern enum rtx_code reverse_condition (enum rtx_code);
+extern enum rtx_code reverse_condition_maybe_unordered (enum rtx_code);
+extern enum rtx_code swap_condition (enum rtx_code);
+extern enum rtx_code unsigned_condition (enum rtx_code);
+extern enum rtx_code signed_condition (enum rtx_code);
+extern void mark_jump_label (rtx, rtx, int);
+extern void cleanup_barriers (void);
 
 /* In jump.c */
-extern bool squeeze_notes		PARAMS ((rtx *, rtx *));
-extern rtx delete_related_insns			PARAMS ((rtx));
-extern void delete_jump			PARAMS ((rtx));
-extern void delete_barrier		PARAMS ((rtx));
-extern rtx get_label_before		PARAMS ((rtx));
-extern rtx get_label_after		PARAMS ((rtx));
-extern rtx follow_jumps			PARAMS ((rtx));
+extern bool squeeze_notes (rtx *, rtx *);
+extern rtx delete_related_insns (rtx);
+extern void delete_jump (rtx);
+extern void delete_barrier (rtx);
+extern rtx get_label_before (rtx);
+extern rtx get_label_after (rtx);
+extern rtx follow_jumps (rtx);
 
 /* In recog.c  */
-extern rtx *find_constant_term_loc	PARAMS ((rtx *));
+extern rtx *find_constant_term_loc (rtx *);
 
 /* In emit-rtl.c  */
-extern rtx try_split			PARAMS ((rtx, rtx, int));
+extern rtx try_split (rtx, rtx, int);
 extern int split_branch_probability;
 
 /* In unknown file  */
-extern rtx split_insns			PARAMS ((rtx, rtx));
+extern rtx split_insns (rtx, rtx);
 
 /* In simplify-rtx.c  */
-extern rtx simplify_unary_operation	PARAMS ((enum rtx_code,
-						 enum machine_mode, rtx,
-						 enum machine_mode));
-extern rtx simplify_binary_operation	PARAMS ((enum rtx_code,
-						 enum machine_mode, rtx,
-						 rtx));
-extern rtx simplify_ternary_operation	PARAMS ((enum rtx_code,
-						 enum machine_mode,
-						 enum machine_mode, rtx, rtx,
-						 rtx));
-extern rtx simplify_relational_operation PARAMS ((enum rtx_code,
-						  enum machine_mode, rtx,
-						  rtx));
-extern rtx simplify_gen_binary		PARAMS ((enum rtx_code,
-						 enum machine_mode,
-						 rtx, rtx));
-extern rtx simplify_gen_unary		PARAMS ((enum rtx_code,
-						 enum machine_mode, rtx,
-						 enum machine_mode));
-extern rtx simplify_gen_ternary		PARAMS ((enum rtx_code,
-						 enum machine_mode,
-						 enum machine_mode,
-						 rtx, rtx, rtx));
-extern rtx simplify_gen_relational	PARAMS ((enum rtx_code,
-						 enum machine_mode,
-						 enum machine_mode,
-						 rtx, rtx));
-extern rtx simplify_subreg		PARAMS ((enum machine_mode,
-						 rtx,
-						 enum machine_mode,
-						 unsigned int));
-extern rtx simplify_gen_subreg		PARAMS ((enum machine_mode,
-						 rtx,
-						 enum machine_mode,
-						 unsigned int));
-extern rtx simplify_replace_rtx		PARAMS ((rtx, rtx, rtx));
-extern rtx simplify_rtx			PARAMS ((rtx));
-extern rtx avoid_constant_pool_reference PARAMS ((rtx));
+extern rtx simplify_unary_operation (enum rtx_code, enum machine_mode, rtx,
+				     enum machine_mode);
+extern rtx simplify_binary_operation (enum rtx_code, enum machine_mode, rtx,
+				      rtx);
+extern rtx simplify_ternary_operation (enum rtx_code, enum machine_mode,
+				       enum machine_mode, rtx, rtx, rtx);
+extern rtx simplify_relational_operation (enum rtx_code, enum machine_mode,
+					  rtx, rtx);
+extern rtx simplify_gen_binary (enum rtx_code, enum machine_mode, rtx, rtx);
+extern rtx simplify_gen_unary (enum rtx_code, enum machine_mode, rtx,
+			       enum machine_mode);
+extern rtx simplify_gen_ternary (enum rtx_code, enum machine_mode,
+				 enum machine_mode, rtx, rtx, rtx);
+extern rtx simplify_gen_relational (enum rtx_code, enum machine_mode,
+				    enum machine_mode, rtx, rtx);
+extern rtx simplify_subreg (enum machine_mode, rtx, enum machine_mode,
+			    unsigned int);
+extern rtx simplify_gen_subreg (enum machine_mode, rtx, enum machine_mode,
+				unsigned int);
+extern rtx simplify_replace_rtx (rtx, rtx, rtx);
+extern rtx simplify_rtx (rtx);
+extern rtx avoid_constant_pool_reference (rtx);
 
 /* In function.c  */
-extern rtx gen_mem_addressof		PARAMS ((rtx, tree, int));
+extern rtx gen_mem_addressof (rtx, tree, int);
 
 /* In regclass.c  */
-extern enum machine_mode choose_hard_reg_mode PARAMS ((unsigned int,
-						       unsigned int));
+extern enum machine_mode choose_hard_reg_mode (unsigned int, unsigned int);
 
 /* In emit-rtl.c  */
-extern rtx set_unique_reg_note		PARAMS ((rtx, enum reg_note, rtx));
+extern rtx set_unique_reg_note (rtx, enum reg_note, rtx);
 
 /* Functions in rtlanal.c */
 
@@ -1656,83 +1626,75 @@ typedef struct replace_label_data
   bool update_label_nuses;
 } replace_label_data;
 
-extern int rtx_addr_can_trap_p		PARAMS ((rtx));
-extern bool nonzero_address_p		PARAMS ((rtx));
-extern int rtx_unstable_p		PARAMS ((rtx));
-extern int rtx_varies_p			PARAMS ((rtx, int));
-extern int rtx_addr_varies_p		PARAMS ((rtx, int));
-extern HOST_WIDE_INT get_integer_term	PARAMS ((rtx));
-extern rtx get_related_value		PARAMS ((rtx));
-extern rtx get_jump_table_offset	PARAMS ((rtx, rtx *));
-extern int global_reg_mentioned_p	PARAMS ((rtx));
-extern int reg_mentioned_p		PARAMS ((rtx, rtx));
-extern int count_occurrences		PARAMS ((rtx, rtx, int));
-extern int reg_referenced_p		PARAMS ((rtx, rtx));
-extern int reg_used_between_p		PARAMS ((rtx, rtx, rtx));
-extern int reg_referenced_between_p	PARAMS ((rtx, rtx, rtx));
-extern int reg_set_between_p		PARAMS ((rtx, rtx, rtx));
-extern int regs_set_between_p		PARAMS ((rtx, rtx, rtx));
-extern int commutative_operand_precedence PARAMS ((rtx));
-extern int swap_commutative_operands_p	PARAMS ((rtx, rtx));
-extern int modified_between_p		PARAMS ((rtx, rtx, rtx));
-extern int no_labels_between_p		PARAMS ((rtx, rtx));
-extern int no_jumps_between_p		PARAMS ((rtx, rtx));
-extern int modified_in_p		PARAMS ((rtx, rtx));
-extern int insn_dependent_p		PARAMS ((rtx, rtx));
-extern int reg_set_p			PARAMS ((rtx, rtx));
-extern rtx single_set_2			PARAMS ((rtx, rtx));
-extern int multiple_sets		PARAMS ((rtx));
-extern int set_noop_p			PARAMS ((rtx));
-extern int noop_move_p			PARAMS ((rtx));
-extern rtx find_last_value		PARAMS ((rtx, rtx *, rtx, int));
-extern int refers_to_regno_p		PARAMS ((unsigned int, unsigned int,
-						 rtx, rtx *));
-extern int reg_overlap_mentioned_p	PARAMS ((rtx, rtx));
-extern rtx set_of			PARAMS ((rtx, rtx));
-extern void note_stores			PARAMS ((rtx,
-						 void (*) (rtx, rtx, void *),
-						 void *));
-extern void note_uses			PARAMS ((rtx *,
-						 void (*) (rtx *, void *),
-						 void *));
-extern rtx reg_set_last			PARAMS ((rtx, rtx));
-extern int dead_or_set_p		PARAMS ((rtx, rtx));
-extern int dead_or_set_regno_p		PARAMS ((rtx, unsigned int));
-extern rtx find_reg_note		PARAMS ((rtx, enum reg_note, rtx));
-extern rtx find_regno_note		PARAMS ((rtx, enum reg_note,
-						 unsigned int));
-extern rtx find_reg_equal_equiv_note	PARAMS ((rtx));
-extern int find_reg_fusage		PARAMS ((rtx, enum rtx_code, rtx));
-extern int find_regno_fusage		PARAMS ((rtx, enum rtx_code,
-						 unsigned int));
-extern int pure_call_p			PARAMS ((rtx));
-extern void remove_note			PARAMS ((rtx, rtx));
-extern int side_effects_p		PARAMS ((rtx));
-extern int volatile_refs_p		PARAMS ((rtx));
-extern int volatile_insn_p		PARAMS ((rtx));
-extern int may_trap_p			PARAMS ((rtx));
-extern int inequality_comparisons_p	PARAMS ((rtx));
-extern rtx replace_rtx			PARAMS ((rtx, rtx, rtx));
-extern rtx replace_regs			PARAMS ((rtx, rtx *, unsigned int,
-						 int));
-extern int replace_label		PARAMS ((rtx *, void *));
-extern int rtx_referenced_p		PARAMS ((rtx, rtx));
-extern bool tablejump_p			PARAMS ((rtx, rtx *, rtx *));
-extern int computed_jump_p		PARAMS ((rtx));
-typedef int (*rtx_function)             PARAMS ((rtx *, void *));
-extern int for_each_rtx                 PARAMS ((rtx *, rtx_function, void *));
-extern rtx regno_use_in			PARAMS ((unsigned int, rtx));
-extern int auto_inc_p			PARAMS ((rtx));
-extern int in_expr_list_p		PARAMS ((rtx, rtx));
-extern void remove_node_from_expr_list	PARAMS ((rtx, rtx *));
-extern int insns_safe_to_move_p         PARAMS ((rtx, rtx, rtx *));
-extern int loc_mentioned_in_p		PARAMS ((rtx *, rtx));
-extern rtx find_first_parameter_load	PARAMS ((rtx, rtx));
-extern bool keep_with_call_p		PARAMS ((rtx));
+extern int rtx_addr_can_trap_p (rtx);
+extern bool nonzero_address_p (rtx);
+extern int rtx_unstable_p (rtx);
+extern int rtx_varies_p (rtx, int);
+extern int rtx_addr_varies_p (rtx, int);
+extern HOST_WIDE_INT get_integer_term (rtx);
+extern rtx get_related_value (rtx);
+extern rtx get_jump_table_offset (rtx, rtx *);
+extern int global_reg_mentioned_p (rtx);
+extern int reg_mentioned_p (rtx, rtx);
+extern int count_occurrences (rtx, rtx, int);
+extern int reg_referenced_p (rtx, rtx);
+extern int reg_used_between_p (rtx, rtx, rtx);
+extern int reg_referenced_between_p (rtx, rtx, rtx);
+extern int reg_set_between_p (rtx, rtx, rtx);
+extern int regs_set_between_p (rtx, rtx, rtx);
+extern int commutative_operand_precedence (rtx);
+extern int swap_commutative_operands_p (rtx, rtx);
+extern int modified_between_p (rtx, rtx, rtx);
+extern int no_labels_between_p (rtx, rtx);
+extern int no_jumps_between_p (rtx, rtx);
+extern int modified_in_p (rtx, rtx);
+extern int insn_dependent_p (rtx, rtx);
+extern int reg_set_p (rtx, rtx);
+extern rtx single_set_2 (rtx, rtx);
+extern int multiple_sets (rtx);
+extern int set_noop_p (rtx);
+extern int noop_move_p (rtx);
+extern rtx find_last_value (rtx, rtx *, rtx, int);
+extern int refers_to_regno_p (unsigned int, unsigned int, rtx, rtx *);
+extern int reg_overlap_mentioned_p (rtx, rtx);
+extern rtx set_of (rtx, rtx);
+extern void note_stores (rtx, void (*) (rtx, rtx, void *), void *);
+extern void note_uses (rtx *, void (*) (rtx *, void *), void *);
+extern rtx reg_set_last (rtx, rtx);
+extern int dead_or_set_p (rtx, rtx);
+extern int dead_or_set_regno_p (rtx, unsigned int);
+extern rtx find_reg_note (rtx, enum reg_note, rtx);
+extern rtx find_regno_note (rtx, enum reg_note, unsigned int);
+extern rtx find_reg_equal_equiv_note (rtx);
+extern int find_reg_fusage (rtx, enum rtx_code, rtx);
+extern int find_regno_fusage (rtx, enum rtx_code, unsigned int);
+extern int pure_call_p (rtx);
+extern void remove_note (rtx, rtx);
+extern int side_effects_p (rtx);
+extern int volatile_refs_p (rtx);
+extern int volatile_insn_p (rtx);
+extern int may_trap_p (rtx);
+extern int inequality_comparisons_p (rtx);
+extern rtx replace_rtx (rtx, rtx, rtx);
+extern rtx replace_regs (rtx, rtx *, unsigned int, int);
+extern int replace_label (rtx *, void *);
+extern int rtx_referenced_p (rtx, rtx);
+extern bool tablejump_p (rtx, rtx *, rtx *);
+extern int computed_jump_p (rtx);
+typedef int (*rtx_function) (rtx *, void *);
+extern int for_each_rtx (rtx *, rtx_function, void *);
+extern rtx regno_use_in (unsigned int, rtx);
+extern int auto_inc_p (rtx);
+extern int in_expr_list_p (rtx, rtx);
+extern void remove_node_from_expr_list (rtx, rtx *);
+extern int insns_safe_to_move_p (rtx, rtx, rtx *);
+extern int loc_mentioned_in_p (rtx *, rtx);
+extern rtx find_first_parameter_load (rtx, rtx);
+extern bool keep_with_call_p (rtx);
 
 /* flow.c */
 
-extern rtx find_use_as_address		PARAMS ((rtx, rtx, HOST_WIDE_INT));
+extern rtx find_use_as_address (rtx, rtx, HOST_WIDE_INT);
 
 /* lists.c */
 
@@ -1752,21 +1714,20 @@ rtx alloc_EXPR_LIST			(int, rtx, rtx);
 extern int max_parallel;
 
 /* Free up register info memory.  */
-extern void free_reg_info		PARAMS ((void));
+extern void free_reg_info (void);
 
 /* recog.c */
-extern int asm_noperands		PARAMS ((rtx));
-extern const char *decode_asm_operands	PARAMS ((rtx, rtx *, rtx **,
-					       const char **,
-					       enum machine_mode *));
+extern int asm_noperands (rtx);
+extern const char *decode_asm_operands (rtx, rtx *, rtx **, const char **,
+					enum machine_mode *);
 
-extern enum reg_class reg_preferred_class PARAMS ((int));
-extern enum reg_class reg_alternate_class PARAMS ((int));
+extern enum reg_class reg_preferred_class (int);
+extern enum reg_class reg_alternate_class (int);
 
-extern rtx get_first_nonparm_insn	PARAMS ((void));
+extern rtx get_first_nonparm_insn (void);
 
-extern void split_all_insns		PARAMS ((int));
-extern void split_all_insns_noflow	PARAMS ((void));
+extern void split_all_insns (int);
+extern void split_all_insns_noflow (void);
 
 #define MAX_SAVED_CONST_INT 64
 extern GTY(()) rtx const_int_rtx[MAX_SAVED_CONST_INT * 2 + 1];
@@ -1866,14 +1827,14 @@ extern GTY(()) rtx return_address_pointer_rtx;
    add to this list, modify special_rtx in gengenrtl.c as well.  You
    should also modify gen_rtx to use the special function.  */
 
-extern rtx gen_rtx_CONST_INT PARAMS ((enum machine_mode, HOST_WIDE_INT));
-extern rtx gen_rtx_CONST_VECTOR PARAMS ((enum machine_mode, rtvec));
-extern rtx gen_raw_REG PARAMS ((enum machine_mode, int));
-extern rtx gen_rtx_REG PARAMS ((enum machine_mode, unsigned));
-extern rtx gen_rtx_SUBREG PARAMS ((enum machine_mode, rtx, int));
-extern rtx gen_rtx_MEM PARAMS ((enum machine_mode, rtx));
+extern rtx gen_rtx_CONST_INT (enum machine_mode, HOST_WIDE_INT);
+extern rtx gen_rtx_CONST_VECTOR (enum machine_mode, rtvec);
+extern rtx gen_raw_REG (enum machine_mode, int);
+extern rtx gen_rtx_REG (enum machine_mode, unsigned);
+extern rtx gen_rtx_SUBREG (enum machine_mode, rtx, int);
+extern rtx gen_rtx_MEM (enum machine_mode, rtx);
 
-extern rtx gen_lowpart_SUBREG PARAMS ((enum machine_mode, rtx));
+extern rtx gen_lowpart_SUBREG (enum machine_mode, rtx);
 
 /* We need the cast here to ensure that we get the same result both with
    and without prototypes.  */
@@ -1943,10 +1904,10 @@ extern rtx gen_lowpart_SUBREG PARAMS ((enum machine_mode, rtx));
 /* REGNUM never really appearing in the INSN stream.  */
 #define INVALID_REGNUM			(~(unsigned int) 0)
 
-extern rtx output_constant_def		PARAMS ((tree, int));
+extern rtx output_constant_def (tree, int);
 
 /* Called from integrate.c when a deferred constant is inlined.  */
-extern void notice_rtl_inlining_of_deferred_constant PARAMS ((void));
+extern void notice_rtl_inlining_of_deferred_constant (void);
 
 /* Nonzero after the second flow pass has completed.
    Set to 1 or 0 by toplev.c  */
@@ -1981,7 +1942,7 @@ extern int no_new_pseudos;
    REAL_ARITHMETIC.  The function returns an int because the caller may not
    know what `enum tree_code' means.  */
 
-extern int rtx_to_tree_code	PARAMS ((enum rtx_code));
+extern int rtx_to_tree_code (enum rtx_code);
 
 /* In cse.c */
 struct cse_basic_block_data;
@@ -1995,92 +1956,91 @@ struct cse_basic_block_data;
    not to use an rtx with this cost under any circumstances.  */
 #define MAX_COST INT_MAX
 
-extern int rtx_cost			PARAMS ((rtx, enum rtx_code));
-extern int address_cost			PARAMS ((rtx, enum machine_mode));
-extern int delete_trivially_dead_insns	PARAMS ((rtx, int));
+extern int rtx_cost (rtx, enum rtx_code);
+extern int address_cost (rtx, enum machine_mode);
+extern int delete_trivially_dead_insns (rtx, int);
 #ifdef BUFSIZ
-extern int cse_main			PARAMS ((rtx, int, int, FILE *));
+extern int cse_main (rtx, int, int, FILE *);
 #endif
-extern void cse_end_of_basic_block	PARAMS ((rtx,
-						struct cse_basic_block_data *,
-						int, int, int));
+extern void cse_end_of_basic_block (rtx, struct cse_basic_block_data *,
+				    int, int, int);
 
 /* In jump.c */
-extern int comparison_dominates_p	PARAMS ((enum rtx_code, enum rtx_code));
-extern int condjump_p			PARAMS ((rtx));
-extern int any_condjump_p		PARAMS ((rtx));
-extern int any_uncondjump_p		PARAMS ((rtx));
-extern int safe_to_remove_jump_p	PARAMS ((rtx));
-extern rtx pc_set			PARAMS ((rtx));
-extern rtx condjump_label		PARAMS ((rtx));
-extern int simplejump_p			PARAMS ((rtx));
-extern int returnjump_p			PARAMS ((rtx));
-extern int onlyjump_p			PARAMS ((rtx));
-extern int only_sets_cc0_p		PARAMS ((rtx));
-extern int sets_cc0_p			PARAMS ((rtx));
-extern int invert_jump_1		PARAMS ((rtx, rtx));
-extern int invert_jump			PARAMS ((rtx, rtx, int));
-extern int rtx_renumbered_equal_p	PARAMS ((rtx, rtx));
-extern int true_regnum			PARAMS ((rtx));
-extern unsigned int reg_or_subregno	PARAMS ((rtx));
-extern int redirect_jump_1		PARAMS ((rtx, rtx));
-extern int redirect_jump		PARAMS ((rtx, rtx, int));
-extern void rebuild_jump_labels		PARAMS ((rtx));
-extern enum rtx_code reversed_comparison_code PARAMS ((rtx, rtx));
-extern enum rtx_code reversed_comparison_code_parts PARAMS ((enum rtx_code,
-							     rtx, rtx, rtx));
-extern void delete_for_peephole		PARAMS ((rtx, rtx));
-extern int condjump_in_parallel_p	PARAMS ((rtx));
-extern void never_reached_warning	PARAMS ((rtx, rtx));
-extern void purge_line_number_notes	PARAMS ((rtx));
-extern void copy_loop_headers		PARAMS ((rtx));
+extern int comparison_dominates_p (enum rtx_code, enum rtx_code);
+extern int condjump_p (rtx);
+extern int any_condjump_p (rtx);
+extern int any_uncondjump_p (rtx);
+extern int safe_to_remove_jump_p (rtx);
+extern rtx pc_set (rtx);
+extern rtx condjump_label (rtx);
+extern int simplejump_p (rtx);
+extern int returnjump_p (rtx);
+extern int onlyjump_p (rtx);
+extern int only_sets_cc0_p (rtx);
+extern int sets_cc0_p (rtx);
+extern int invert_jump_1 (rtx, rtx);
+extern int invert_jump (rtx, rtx, int);
+extern int rtx_renumbered_equal_p (rtx, rtx);
+extern int true_regnum (rtx);
+extern unsigned int reg_or_subregno (rtx);
+extern int redirect_jump_1 (rtx, rtx);
+extern int redirect_jump (rtx, rtx, int);
+extern void rebuild_jump_labels (rtx);
+extern enum rtx_code reversed_comparison_code (rtx, rtx);
+extern enum rtx_code reversed_comparison_code_parts (enum rtx_code,
+						     rtx, rtx, rtx);
+extern void delete_for_peephole (rtx, rtx);
+extern int condjump_in_parallel_p (rtx);
+extern void never_reached_warning (rtx, rtx);
+extern void purge_line_number_notes (rtx);
+extern void copy_loop_headers (rtx);
 
 /* In emit-rtl.c.  */
-extern int max_reg_num				PARAMS ((void));
-extern int max_label_num			PARAMS ((void));
-extern int get_first_label_num			PARAMS ((void));
-extern void delete_insns_since			PARAMS ((rtx));
-extern void mark_reg_pointer			PARAMS ((rtx, int));
-extern void mark_user_reg			PARAMS ((rtx));
-extern void reset_used_flags			PARAMS ((rtx));
-extern void reorder_insns			PARAMS ((rtx, rtx, rtx));
-extern void reorder_insns_nobb			PARAMS ((rtx, rtx, rtx));
-extern int get_max_uid				PARAMS ((void));
-extern int in_sequence_p			PARAMS ((void));
-extern void force_next_line_note		PARAMS ((void));
-extern void init_emit				PARAMS ((void));
-extern void init_emit_once			PARAMS ((int));
-extern void push_topmost_sequence		PARAMS ((void));
-extern void pop_topmost_sequence		PARAMS ((void));
-extern int subreg_realpart_p			PARAMS ((rtx));
-extern void reverse_comparison			PARAMS ((rtx));
-extern void set_new_first_and_last_insn		PARAMS ((rtx, rtx));
-extern void set_new_first_and_last_label_num	PARAMS ((int, int));
-extern void set_new_last_label_num		PARAMS ((int));
-extern void unshare_all_rtl_again		PARAMS ((rtx));
-extern void set_first_insn			PARAMS ((rtx));
-extern void set_last_insn			PARAMS ((rtx));
-extern void link_cc0_insns			PARAMS ((rtx));
-extern void add_insn				PARAMS ((rtx));
-extern void add_insn_before			PARAMS ((rtx, rtx));
-extern void add_insn_after			PARAMS ((rtx, rtx));
-extern void remove_insn				PARAMS ((rtx));
-extern void reorder_insns_with_line_notes	PARAMS ((rtx, rtx, rtx));
-extern void emit_insn_after_with_line_notes	PARAMS ((rtx, rtx, rtx));
-extern enum rtx_code classify_insn		PARAMS ((rtx));
-extern rtx emit					PARAMS ((rtx));
+extern int max_reg_num (void);
+extern int max_label_num (void);
+extern int get_first_label_num (void);
+extern void delete_insns_since (rtx);
+extern void mark_reg_pointer (rtx, int);
+extern void mark_user_reg (rtx);
+extern void reset_used_flags (rtx);
+extern void reorder_insns (rtx, rtx, rtx);
+extern void reorder_insns_nobb (rtx, rtx, rtx);
+extern int get_max_uid (void);
+extern int in_sequence_p (void);
+extern void force_next_line_note (void);
+extern void init_emit (void);
+extern void init_emit_once (int);
+extern void push_topmost_sequence (void);
+extern void pop_topmost_sequence (void);
+extern int subreg_realpart_p (rtx);
+extern void reverse_comparison (rtx);
+extern void set_new_first_and_last_insn (rtx, rtx);
+extern void set_new_first_and_last_label_num (int, int);
+extern void set_new_last_label_num (int);
+extern void unshare_all_rtl_again (rtx);
+extern void set_first_insn (rtx);
+extern void set_last_insn (rtx);
+extern void link_cc0_insns (rtx);
+extern void add_insn (rtx);
+extern void add_insn_before (rtx, rtx);
+extern void add_insn_after (rtx, rtx);
+extern void remove_insn (rtx);
+extern void reorder_insns_with_line_notes (rtx, rtx, rtx);
+extern void emit_insn_after_with_line_notes (rtx, rtx, rtx);
+extern enum rtx_code classify_insn (rtx);
+extern rtx emit (rtx);
 /* Query and clear/ restore no_line_numbers.  This is used by the
    switch / case handling in stmt.c to give proper line numbers in
    warnings about unreachable code.  */
-int force_line_numbers PARAMS ((void));
-void restore_line_number_status PARAMS ((int old_value));
-extern void renumber_insns                      PARAMS ((FILE *));
-extern void remove_unnecessary_notes             PARAMS ((void));
-extern rtx delete_insn			PARAMS ((rtx));
-extern void delete_insn_chain		PARAMS ((rtx, rtx));
-extern rtx unlink_insn_chain		PARAMS ((rtx, rtx));
-extern rtx delete_insn_and_edges	PARAMS ((rtx));
-extern void delete_insn_chain_and_edges	PARAMS ((rtx, rtx));
+int force_line_numbers (void);
+void restore_line_number_status (int old_value);
+extern void renumber_insns (FILE *);
+extern void remove_unnecessary_notes (void);
+extern rtx delete_insn (rtx);
+extern void delete_insn_chain (rtx, rtx);
+extern rtx unlink_insn_chain (rtx, rtx);
+extern rtx delete_insn_and_edges (rtx);
+extern void delete_insn_chain_and_edges (rtx, rtx);
 
 /* In combine.c */
 extern int combine_instructions (rtx, unsigned int);
@@ -2093,143 +2053,139 @@ extern void dump_combine_total_stats (FILE *);
 
 /* In sched.c.  */
 #ifdef BUFSIZ
-extern void schedule_insns		PARAMS ((FILE *));
-extern void schedule_ebbs		PARAMS ((FILE *));
+extern void schedule_insns (FILE *);
+extern void schedule_ebbs (FILE *);
 #endif
-extern void fix_sched_param		PARAMS ((const char *, const char *));
+extern void fix_sched_param (const char *, const char *);
 
 /* In print-rtl.c */
 extern const char *print_rtx_head;
-extern void debug_rtx			PARAMS ((rtx));
-extern void debug_rtx_list		PARAMS ((rtx, int));
-extern void debug_rtx_range		PARAMS ((rtx, rtx));
-extern rtx debug_rtx_find		PARAMS ((rtx, int));
+extern void debug_rtx (rtx);
+extern void debug_rtx_list (rtx, int);
+extern void debug_rtx_range (rtx, rtx);
+extern rtx debug_rtx_find (rtx, int);
 #ifdef BUFSIZ
-extern void print_mem_expr		PARAMS ((FILE *, tree));
-extern void print_rtl			PARAMS ((FILE *, rtx));
-extern void print_simple_rtl		PARAMS ((FILE *, rtx));
-extern int print_rtl_single		PARAMS ((FILE *, rtx));
-extern void print_inline_rtx		PARAMS ((FILE *, rtx, int));
+extern void print_mem_expr (FILE *, tree);
+extern void print_rtl (FILE *, rtx);
+extern void print_simple_rtl (FILE *, rtx);
+extern int print_rtl_single (FILE *, rtx);
+extern void print_inline_rtx (FILE *, rtx, int);
 #endif
 
 /* In loop.c */
-extern void init_loop			PARAMS ((void));
-extern rtx libcall_other_reg		PARAMS ((rtx, rtx));
+extern void init_loop (void);
+extern rtx libcall_other_reg (rtx, rtx);
 #ifdef BUFSIZ
-extern void loop_optimize		PARAMS ((rtx, FILE *, int));
+extern void loop_optimize (rtx, FILE *, int);
 #endif
 extern void branch_target_load_optimize (rtx, bool);
-extern void record_excess_regs		PARAMS ((rtx, rtx, rtx *));
+extern void record_excess_regs (rtx, rtx, rtx *);
 
 /* In function.c */
-extern void reposition_prologue_and_epilogue_notes	PARAMS ((rtx));
-extern void thread_prologue_and_epilogue_insns		PARAMS ((rtx));
-extern int prologue_epilogue_contains			PARAMS ((rtx));
-extern int sibcall_epilogue_contains			PARAMS ((rtx));
-extern void preserve_rtl_expr_result			PARAMS ((rtx));
-extern void mark_temp_addr_taken			PARAMS ((rtx));
-extern void update_temp_slot_address			PARAMS ((rtx, rtx));
-extern void purge_addressof				PARAMS ((rtx));
-extern void purge_hard_subreg_sets			PARAMS ((rtx));
+extern void reposition_prologue_and_epilogue_notes (rtx);
+extern void thread_prologue_and_epilogue_insns (rtx);
+extern int prologue_epilogue_contains (rtx);
+extern int sibcall_epilogue_contains (rtx);
+extern void preserve_rtl_expr_result (rtx);
+extern void mark_temp_addr_taken (rtx);
+extern void update_temp_slot_address (rtx, rtx);
+extern void purge_addressof (rtx);
+extern void purge_hard_subreg_sets (rtx);
 
 /* In stmt.c */
-extern void set_file_and_line_for_stmt	PARAMS ((const char *, int));
-extern void expand_null_return		PARAMS ((void));
-extern void emit_jump			PARAMS ((rtx));
-extern int preserve_subexpressions_p	PARAMS ((void));
+extern void set_file_and_line_for_stmt (const char *, int);
+extern void expand_null_return (void);
+extern void emit_jump (rtx);
+extern int preserve_subexpressions_p (void);
 
 /* In expr.c */
-extern rtx move_by_pieces		PARAMS ((rtx, rtx,
-						 unsigned HOST_WIDE_INT,
-						 unsigned int, int));
+extern rtx move_by_pieces (rtx, rtx, unsigned HOST_WIDE_INT,
+			   unsigned int, int);
 
 /* In flow.c */
-extern void recompute_reg_usage			PARAMS ((rtx, int));
-extern int initialize_uninitialized_subregs	PARAMS ((void));
-extern void delete_dead_jumptables		PARAMS ((void));
+extern void recompute_reg_usage (rtx, int);
+extern int initialize_uninitialized_subregs (void);
+extern void delete_dead_jumptables (void);
 #ifdef BUFSIZ
-extern void print_rtl_with_bb			PARAMS ((FILE *, rtx));
-extern void dump_flow_info			PARAMS ((FILE *));
+extern void print_rtl_with_bb (FILE *, rtx);
+extern void dump_flow_info (FILE *);
 #endif
 
 /* In expmed.c */
-extern void init_expmed			PARAMS ((void));
-extern void expand_inc			PARAMS ((rtx, rtx));
-extern void expand_dec			PARAMS ((rtx, rtx));
-extern rtx expand_mult_highpart		PARAMS ((enum machine_mode, rtx,
-						unsigned HOST_WIDE_INT, rtx,
-						int, int));
+extern void init_expmed (void);
+extern void expand_inc (rtx, rtx);
+extern void expand_dec (rtx, rtx);
+extern rtx expand_mult_highpart (enum machine_mode, rtx,
+				 unsigned HOST_WIDE_INT, rtx, int, int);
 
 /* In gcse.c */
-extern bool can_copy_p			PARAMS ((enum machine_mode));
-extern rtx fis_get_condition		PARAMS ((rtx));
+extern bool can_copy_p (enum machine_mode);
+extern rtx fis_get_condition (rtx);
 #ifdef BUFSIZ
-extern int gcse_main			PARAMS ((rtx, FILE *));
-extern int bypass_jumps			PARAMS ((FILE *));
+extern int gcse_main (rtx, FILE *);
+extern int bypass_jumps (FILE *);
 #endif
 
 /* In global.c */
-extern void mark_elimination		PARAMS ((int, int));
+extern void mark_elimination (int, int);
 #ifdef BUFSIZ
-extern int global_alloc			PARAMS ((FILE *));
-extern void dump_global_regs		PARAMS ((FILE *));
+extern int global_alloc (FILE *);
+extern void dump_global_regs (FILE *);
 #endif
 #ifdef HARD_CONST
 /* Yes, this ifdef is silly, but HARD_REG_SET is not always defined.  */
-extern void retry_global_alloc		PARAMS ((int, HARD_REG_SET));
+extern void retry_global_alloc (int, HARD_REG_SET);
 #endif
-extern void build_insn_chain		PARAMS ((rtx));
+extern void build_insn_chain (rtx);
 
 /* In regclass.c */
-extern int reg_classes_intersect_p	PARAMS ((enum reg_class, enum reg_class));
-extern int reg_class_subset_p		PARAMS ((enum reg_class, enum reg_class));
-extern void globalize_reg		PARAMS ((int));
-extern void init_regs			PARAMS ((void));
-extern void init_fake_stack_mems	PARAMS ((void));
-extern void init_reg_sets		PARAMS ((void));
-extern void regset_release_memory	PARAMS ((void));
-extern void regclass_init		PARAMS ((void));
-extern void regclass			PARAMS ((rtx, int, FILE *));
-extern void reg_scan			PARAMS ((rtx, unsigned int, int));
-extern void reg_scan_update		PARAMS ((rtx, rtx, unsigned int));
-extern void fix_register		PARAMS ((const char *, int, int));
+extern int reg_classes_intersect_p (enum reg_class, enum reg_class);
+extern int reg_class_subset_p (enum reg_class, enum reg_class);
+extern void globalize_reg (int);
+extern void init_regs (void);
+extern void init_fake_stack_mems (void);
+extern void init_reg_sets (void);
+extern void regset_release_memory (void);
+extern void regclass_init (void);
+extern void regclass (rtx, int, FILE *);
+extern void reg_scan (rtx, unsigned int, int);
+extern void reg_scan_update (rtx, rtx, unsigned int);
+extern void fix_register (const char *, int, int);
 #ifdef HARD_CONST
-extern void cannot_change_mode_set_regs PARAMS ((HARD_REG_SET *,
-						 enum machine_mode,
-						 unsigned int));
+extern void cannot_change_mode_set_regs (HARD_REG_SET *,
+					 enum machine_mode, unsigned int);
 #endif
-extern bool invalid_mode_change_p	PARAMS ((unsigned int,
-						 enum reg_class,
-						 enum machine_mode));
+extern bool invalid_mode_change_p (unsigned int, enum reg_class,
+				   enum machine_mode);
 
-extern int delete_null_pointer_checks	PARAMS ((rtx));
+extern int delete_null_pointer_checks (rtx);
 
 /* In regmove.c */
 #ifdef BUFSIZ
-extern void regmove_optimize		PARAMS ((rtx, int, FILE *));
+extern void regmove_optimize (rtx, int, FILE *);
 #endif
-extern void combine_stack_adjustments	PARAMS ((void));
+extern void combine_stack_adjustments (void);
 
 /* In reorg.c */
 #ifdef BUFSIZ
-extern void dbr_schedule		PARAMS ((rtx, FILE *));
+extern void dbr_schedule (rtx, FILE *);
 #endif
 
 /* In local-alloc.c */
 #ifdef BUFSIZ
-extern void dump_local_alloc		PARAMS ((FILE *));
+extern void dump_local_alloc (FILE *);
 #endif
-extern int local_alloc			PARAMS ((void));
-extern int function_invariant_p		PARAMS ((rtx));
+extern int local_alloc (void);
+extern int function_invariant_p (rtx);
 
 /* In profile.c */
-extern void init_branch_prob		PARAMS ((void));
-extern void branch_prob			PARAMS ((void));
-extern void end_branch_prob		PARAMS ((void));
+extern void init_branch_prob (void);
+extern void branch_prob (void);
+extern void end_branch_prob (void);
 
 /* In reg-stack.c */
 #ifdef BUFSIZ
-extern bool reg_to_stack		PARAMS ((rtx, FILE *));
+extern bool reg_to_stack (rtx, FILE *);
 #endif
 
 /* In calls.c */
@@ -2246,29 +2202,26 @@ enum libcall_type
   LCT_RETURNS_TWICE = 8
 };
 
-extern void emit_library_call		PARAMS ((rtx, enum libcall_type,
-						 enum machine_mode, int,
-						 ...));
-extern rtx emit_library_call_value	PARAMS ((rtx, rtx, enum libcall_type,
-						 enum machine_mode, int,
-						 ...));
+extern void emit_library_call (rtx, enum libcall_type, enum machine_mode, int,
+			       ...);
+extern rtx emit_library_call_value (rtx, rtx, enum libcall_type,
+				    enum machine_mode, int, ...);
 
 /* In unroll.c */
-extern int set_dominates_use		PARAMS ((int, int, int, rtx, rtx));
+extern int set_dominates_use (int, int, int, rtx, rtx);
 
 /* In varasm.c */
-extern int in_data_section		PARAMS ((void));
-extern void init_varasm_once		PARAMS ((void));
+extern int in_data_section (void);
+extern void init_varasm_once (void);
 
 /* In rtl.c */
-extern void init_rtl			PARAMS ((void));
-extern void traverse_md_constants	PARAMS ((int (*) (void **, void *),
-						 void *));
+extern void init_rtl (void);
+extern void traverse_md_constants (int (*) (void **, void *), void *);
 struct md_constant { char *name, *value; };
 
 #ifdef BUFSIZ
-extern int read_skip_spaces		PARAMS ((FILE *));
-extern rtx read_rtx			PARAMS ((FILE *));
+extern int read_skip_spaces (FILE *);
+extern rtx read_rtx (FILE *);
 #endif
 
 extern const char *read_rtx_filename;
@@ -2280,7 +2233,7 @@ extern int read_rtx_lineno;
    special abort includes one or both.  toplev.h gets too few files,
    system.h gets too many.  */
 
-extern void fancy_abort PARAMS ((const char *, int, const char *))
+extern void fancy_abort (const char *, int, const char *)
     ATTRIBUTE_NORETURN;
 #define abort() fancy_abort (__FILE__, __LINE__, __FUNCTION__)
 
@@ -2309,27 +2262,27 @@ typedef enum {
   sibcall_use_sibcall
 } sibcall_use_t;
 
-extern void optimize_sibling_and_tail_recursive_calls PARAMS ((void));
-extern void replace_call_placeholder	PARAMS ((rtx, sibcall_use_t));
+extern void optimize_sibling_and_tail_recursive_calls (void);
+extern void replace_call_placeholder (rtx, sibcall_use_t);
 
 #ifdef STACK_REGS
-extern int stack_regs_mentioned		PARAMS ((rtx insn));
+extern int stack_regs_mentioned (rtx insn);
 #endif
 
 /* In toplev.c */
 extern GTY(()) rtx stack_limit_rtx;
 
 /* In regrename.c */
-extern void regrename_optimize		PARAMS ((void));
-extern void copyprop_hardreg_forward	PARAMS ((void));
+extern void regrename_optimize (void);
+extern void copyprop_hardreg_forward (void);
 
 /* In ifcvt.c */
-extern void if_convert			PARAMS ((int));
+extern void if_convert (int);
 
 /* In predict.c */
-extern void invert_br_probabilities	PARAMS ((rtx));
-extern bool expensive_function_p	PARAMS ((int));
+extern void invert_br_probabilities (rtx);
+extern bool expensive_function_p (int);
 /* In tracer.c */
-extern void tracer			PARAMS ((void));
+extern void tracer (void);
 
 #endif /* ! GCC_RTL_H */