Warning fixes:

	* Makefile.in (varasm.o): Depend on dbxout.h.
	(cse.o): Depend on toplev.h and output.h.
	(gcse.o): Depend on output.h.
	* mips.c: Include system.h and toplev.h and remove redundant code.
	Include output.h after tree.h so all its prototypes get activated.
	* mips.md (table_jump): Remove unused variable `dest'.
	* sparc.h: Add prototype for `v8plus_regcmp_op'.
	* crtstuff.c (fini_dummy, init_dummy): Mark function definitions
	with __attribute__ ((__unused__)).
	(__frame_dummy): Provide prototype before use, wrap it with
	EH_FRAME_SECTION_ASM_OP.
	* cse.c: Move inclusion of <setjmp.h> above local headers.
  	Include toplev.h and output.h.
	* dbxout.h: Add prototype for `dbxout_begin_function'.
	* final.c (final_scan_insn): Wrap variable `max_skip' in macro
	ASM_OUTPUT_MAX_SKIP_ALIGN.
	* gcse.c: Include system.h and output.h.
	(dump_cuid_table, dump_rd_table, dump_cprop_data, dump_pre_data):
	Make extern instead of static.
	(compute_can_copy): Only declare variables `reg' and `insn' when
 	AVOID_CCMODE_COPIES is not defined.
	(record_set_info): Mark parameter `setter' with ATTRIBUTE_UNUSED.
	(hash_scan_clobber): Likewise for `x' and `insn'.
	(hash_scan_call): Likewise.
	(record_last_set_info): Likewise for `setter'.
	(mark_call): Likewise for `pat'.
	(pre_insert_insn): Wrap variable `note' in macro HAVE_cc0.
	* libgcc2.c (__bb_init_prg): Replace bzero with memset and fix the
 	length parameter so that it multiplies the number of elements by
 	the sizeof(element).
	* output.h: Add prototype for `weak_finish'.
	* recog.h: Likewise for `validate_replace_src'.
	* rtl.h: Likewise for `optimize_save_area_alloca',
 	`fix_sched_param', `purge_addressof', `gcse_main',
 	`regmove_optimize', `dbr_schedule', `branch_prob' and
 	`end_branch_prob'.
	* toplev.h: Likewise for `set_float_handler' and
 	`output_quoted_string'.
	* varasm.c: Include dbxout.h.

From-SVN: r20351

gcc/ChangeLog

+Mon Jun  8 20:57:40 1998  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
+
+	* Makefile.in (varasm.o): Depend on dbxout.h.
+	(cse.o): Depend on toplev.h and output.h.
+	(gcse.o): Depend on output.h.
+
+	* mips.c: Include system.h and toplev.h and remove redundant code.
+	Include output.h after tree.h so all its prototypes get activated.
+	* mips.md (table_jump): Remove unused variable `dest'.
+
+	* sparc.h: Add prototype for `v8plus_regcmp_op'.
+
+	* crtstuff.c (fini_dummy, init_dummy): Mark function definitions
+	with __attribute__ ((__unused__)).
+	(__frame_dummy): Provide prototype before use, wrap it with
+	EH_FRAME_SECTION_ASM_OP.
+
+	* cse.c: Move inclusion of <setjmp.h> above local headers.
+  	Include toplev.h and output.h.
+
+	* dbxout.h: Add prototype for `dbxout_begin_function'.
+
+	* final.c (final_scan_insn): Wrap variable `max_skip' in macro
+	ASM_OUTPUT_MAX_SKIP_ALIGN.
+
+	* gcse.c: Include system.h and output.h.
+	(dump_cuid_table, dump_rd_table, dump_cprop_data, dump_pre_data):
+	Make extern instead of static.
+	(compute_can_copy): Only declare variables `reg' and `insn' when
+ 	AVOID_CCMODE_COPIES is not defined.
+	(record_set_info): Mark parameter `setter' with ATTRIBUTE_UNUSED.
+	(hash_scan_clobber): Likewise for `x' and `insn'.
+	(hash_scan_call): Likewise.
+	(record_last_set_info): Likewise for `setter'.
+	(mark_call): Likewise for `pat'.
+	(pre_insert_insn): Wrap variable `note' in macro HAVE_cc0.
+
+	* libgcc2.c (__bb_init_prg): Replace bzero with memset and fix the
+ 	length parameter so that it multiplies the number of elements by
+ 	the sizeof(element).
+
+	* output.h: Add prototype for `weak_finish'.
+
+	* recog.h: Likewise for `validate_replace_src'.
+
+	* rtl.h: Likewise for `optimize_save_area_alloca',
+ 	`fix_sched_param', `purge_addressof', `gcse_main',
+ 	`regmove_optimize', `dbr_schedule', `branch_prob' and
+ 	`end_branch_prob'.
+
+	* toplev.h: Likewise for `set_float_handler' and
+ 	`output_quoted_string'.
+
+	* varasm.c: Include dbxout.h.
+
 Mon Jun  8 18:12:06 1998  Jim Wilson  <wilson@cygnus.com>
 
 	* mips.c (mips_secondary_reload_class): Use gp_reg_p instead of

gcc/Makefile.in

@@ -1364,7 +1364,7 @@ rtlanal.o : rtlanal.c $(CONFIG_H) system.h $(RTL_H)
 
 varasm.o : varasm.c $(CONFIG_H) system.h $(TREE_H) $(RTL_H) flags.h \
    function.h defaults.h insn-codes.h expr.h hard-reg-set.h regs.h \
-   xcoffout.h output.h c-pragma.h toplev.h except.h
+   xcoffout.h output.h c-pragma.h toplev.h except.h dbxout.h
 function.o : function.c $(CONFIG_H) system.h $(RTL_H) $(TREE_H) flags.h \
    function.h insn-flags.h insn-codes.h expr.h regs.h hard-reg-set.h \
    insn-config.h $(RECOG_H) output.h toplev.h except.h
@@ -1413,9 +1413,9 @@ jump.o : jump.c $(CONFIG_H) system.h $(RTL_H) flags.h hard-reg-set.h regs.h \
 stupid.o : stupid.c $(CONFIG_H) system.h $(RTL_H) regs.h hard-reg-set.h flags.h
 
 cse.o : cse.c $(CONFIG_H) system.h $(RTL_H) regs.h hard-reg-set.h flags.h \
-   real.h insn-config.h insn-codes.h $(RECOG_H) expr.h
+   real.h insn-config.h insn-codes.h $(RECOG_H) expr.h toplev.h output.h
 gcse.o : gcse.c $(CONFIG_H) system.h $(RTL_H) regs.h hard-reg-set.h flags.h \
-   real.h insn-config.h insn-codes.h $(RECOG_H) expr.h basic-block.h
+   real.h insn-config.h insn-codes.h $(RECOG_H) expr.h basic-block.h output.h
 profile.o : profile.c $(CONFIG_H) system.h $(RTL_H) flags.h insn-flags.h \
    gcov-io.h $(TREE_H) output.h regs.h toplev.h
 loop.o : loop.c $(CONFIG_H) system.h $(RTL_H) flags.h loop.h insn-config.h \

gcc/config/mips/mips.c

@@ -27,14 +27,8 @@ Boston, MA 02111-1307, USA.  */
    be replaced with something better designed.  */
 
 #include "config.h"
-
-#include <stdio.h>
-#ifdef HAVE_STDLIB_H
-#include <stdlib.h>
-#endif
-#ifdef HAVE_UNISTD_H
-#include <unistd.h>
-#endif
+#include "system.h"
+#include <signal.h>
 
 #include "rtl.h"
 #include "regs.h"
@@ -46,25 +40,16 @@ Boston, MA 02111-1307, USA.  */
 #include "insn-attr.h"
 #include "insn-codes.h"
 #include "recog.h"
-#include "output.h"
+#include "toplev.h"
 
 #undef MAX			/* sys/param.h may also define these */
 #undef MIN
 
-#include <signal.h>
-#include <sys/types.h>
-#include <sys/file.h>
-#include <ctype.h>
 #include "tree.h"
 #include "expr.h"
 #include "flags.h"
 #include "reload.h"
-
-#ifndef R_OK
-#define R_OK 4
-#define W_OK 2
-#define X_OK 1
-#endif
+#include "output.h"
 
 #if defined(USG) || !defined(HAVE_STAB_H)
 #include "gstab.h"  /* If doing DBX on sysV, use our own stab.h.  */
@@ -78,19 +63,8 @@ Boston, MA 02111-1307, USA.  */
 #define STAB_CODE_TYPE int
 #endif
 
-extern void   abort ();
-extern int    atoi ();
-extern char  *getenv ();
 extern char  *mktemp ();
- 
-extern rtx    adj_offsettable_operand ();
-extern rtx    copy_to_reg ();
-extern void   error ();
 extern tree   lookup_name ();
-extern void   pfatal_with_name ();
-extern void   warning ();
-
-extern FILE  *asm_out_file;
 
 /* Enumeration for all of the relational tests, so that we can build
    arrays indexed by the test type, and not worry about the order

gcc/config/mips/mips.md

@@ -8681,8 +8681,6 @@ move\\t%0,%z4\\n\\
   ""
   "
 {
-  rtx dest;
-
   if (operands[0])		/* eliminate unused code warnings */
     {
       if (TARGET_MIPS16)

gcc/config/sparc/sparc.h

@@ -3261,6 +3261,7 @@ extern int symbolic_operand ();
 extern int text_segment_operand ();
 extern int ultrasparc_adjust_cost ();
 extern int uns_small_int ();
+extern int v8plus_regcmp_op ();
 extern int v8plus_regcmp_p ();
 extern int v9_regcmp_op ();
 extern int v9_regcmp_p ();

gcc/crtstuff.c

@@ -150,7 +150,7 @@ __do_global_dtors_aux ()
 
 /* Stick a call to __do_global_dtors_aux into the .fini section.  */
 
-static void
+static void __attribute__ ((__unused__))
 fini_dummy ()
 {
   asm (FINI_SECTION_ASM_OP);
@@ -173,7 +173,7 @@ frame_dummy ()
   __register_frame_info (__EH_FRAME_BEGIN__, &object);
 }
 
-static void
+static void __attribute__ ((__unused__))
 init_dummy ()
 {
   asm (INIT_SECTION_ASM_OP);
@@ -335,7 +335,7 @@ __do_global_ctors_aux ()
 
 /* Stick a call to __do_global_ctors_aux into the .init section.  */
 
-static void
+static void __attribute__ ((__unused__))
 init_dummy ()
 {
   asm (INIT_SECTION_ASM_OP);
@@ -407,6 +407,9 @@ asm (TEXT_SECTION_ASM_OP);
    not an SVR4-style .init section.  __do_global_ctors can be non-static
    in this case because we protect it with -hidden_symbol.  */
 static func_ptr __CTOR_END__[];
+#ifdef EH_FRAME_SECTION_ASM_OP
+extern void __frame_dummy (void);
+#endif
 void
 __do_global_ctors ()
 {

gcc/cse.c

@@ -22,6 +22,7 @@ Boston, MA 02111-1307, USA.  */
 #include "config.h"
 /* stdio.h must precede rtl.h for FFS.  */
 #include "system.h"
+#include <setjmp.h>
 
 #include "rtl.h"
 #include "regs.h"
@@ -31,8 +32,8 @@ Boston, MA 02111-1307, USA.  */
 #include "insn-config.h"
 #include "recog.h"
 #include "expr.h"
-
-#include <setjmp.h>
+#include "toplev.h"
+#include "output.h"
 
 /* The basic idea of common subexpression elimination is to go
    through the code, keeping a record of expressions that would

gcc/dbxout.h

@@ -27,3 +27,4 @@ extern void dbxout_resume_previous_source_file	PROTO ((void));
 extern void dbxout_symbol		PROTO ((tree, int));
 extern void dbxout_function		PROTO ((tree));
 extern void dbxout_source_line		PROTO ((FILE *, char*, int));
+extern void dbxout_begin_function	PROTO ((tree));

gcc/final.c

@@ -2276,7 +2276,9 @@ final_scan_insn (insn, file, optimize, prescan, nopeepholes)
       if (CODE_LABEL_NUMBER (insn) <= max_labelno)
 	{
 	  int align = LABEL_TO_ALIGNMENT (insn);
+#ifdef ASM_OUTPUT_MAX_SKIP_ALIGN
 	  int max_skip = LABEL_TO_MAX_SKIP (insn);
+#endif
 
 	  if (align && NEXT_INSN (insn))
 #ifdef ASM_OUTPUT_MAX_SKIP_ALIGN

gcc/gcse.c

@@ -141,7 +141,7 @@ yyy
 
 #include "config.h"
 /* Must precede rtl.h for FFS.  */
-#include <stdio.h>
+#include "system.h"
 
 #include "rtl.h"
 #include "regs.h"
@@ -151,6 +151,7 @@ yyy
 #include "insn-config.h"
 #include "recog.h"
 #include "basic-block.h"
+#include "output.h"
 
 #include "obstack.h"
 #define obstack_chunk_alloc gmalloc
@@ -541,7 +542,7 @@ static char *grealloc                 PROTO ((char *, unsigned int));
 static char *gcse_alloc               PROTO ((unsigned long));
 static void alloc_gcse_mem            PROTO ((rtx));
 static void free_gcse_mem             PROTO ((void));
-static void dump_cuid_table           PROTO ((FILE *));
+extern void dump_cuid_table           PROTO ((FILE *));
 
 static void alloc_reg_set_mem         PROTO ((int));
 static void free_reg_set_mem          PROTO ((void));
@@ -590,7 +591,7 @@ static void free_rd_mem               PROTO ((void));
 static void compute_kill_rd           PROTO ((void));
 static void handle_rd_kill_set        PROTO ((rtx, int, int));
 static void compute_rd                PROTO ((void));
-static void dump_rd_table             PROTO ((FILE *, char *, sbitmap *));
+extern void dump_rd_table             PROTO ((FILE *, char *, sbitmap *));
 
 static void alloc_avail_expr_mem      PROTO ((int, int));
 static void free_avail_expr_mem       PROTO ((void));
@@ -610,7 +611,7 @@ static int one_classic_gcse_pass      PROTO ((rtx, int));
 
 static void alloc_cprop_mem           PROTO ((int, int));
 static void free_cprop_mem            PROTO ((void));
-static void dump_cprop_data           PROTO ((FILE *));
+extern void dump_cprop_data           PROTO ((FILE *));
 static void compute_transp            PROTO ((rtx, int, sbitmap *, int));
 static void compute_cprop_local_properties PROTO ((void));
 static void compute_cprop_avinout     PROTO ((void));
@@ -624,7 +625,7 @@ static int one_cprop_pass             PROTO ((rtx, int));
 
 static void alloc_pre_mem             PROTO ((int, int));
 static void free_pre_mem              PROTO ((void));
-static void dump_pre_data             PROTO ((FILE *));
+extern void dump_pre_data             PROTO ((FILE *));
 static void compute_pre_local_properties PROTO ((void));
 static void compute_pre_avinout       PROTO ((void));
 static void compute_pre_antinout      PROTO ((void));
@@ -786,7 +787,9 @@ static void
 compute_can_copy ()
 {
   int i;
+#ifndef AVOID_CCMODE_COPIES
   rtx reg,insn;
+#endif
   char *free_point = (char *) oballoc (1);
 
   bzero (can_copy_p, NUM_MACHINE_MODES);
@@ -918,7 +921,7 @@ free_gcse_mem ()
   free (mem_set_in_block);
 }
 
-static void
+void
 dump_cuid_table (file)
      FILE *file;
 {
@@ -1014,7 +1017,7 @@ static rtx record_set_insn;
 
 static void
 record_set_info (dest, setter)
-     rtx dest, setter;
+     rtx dest, setter ATTRIBUTE_UNUSED;
 {
   if (GET_CODE (dest) == SUBREG)
     dest = SUBREG_REG (dest);
@@ -1823,14 +1826,14 @@ hash_scan_set (pat, insn, set_p)
 
 static void
 hash_scan_clobber (x, insn)
-     rtx x, insn;
+     rtx x ATTRIBUTE_UNUSED, insn ATTRIBUTE_UNUSED;
 {
   /* Currently nothing to do.  */
 }
 
 static void
 hash_scan_call (x, insn)
-     rtx x, insn;
+     rtx x ATTRIBUTE_UNUSED, insn ATTRIBUTE_UNUSED;
 {
   /* Currently nothing to do.  */
 }
@@ -1977,7 +1980,7 @@ static rtx last_set_insn;
 
 static void
 record_last_set_info (dest, setter)
-     rtx dest, setter;
+     rtx dest, setter ATTRIBUTE_UNUSED;
 {
   if (GET_CODE (dest) == SUBREG)
     dest = SUBREG_REG (dest);
@@ -2338,7 +2341,7 @@ repeat:
 
 static void
 mark_call (pat, insn)
-     rtx pat, insn;
+     rtx pat ATTRIBUTE_UNUSED, insn;
 {
   mem_last_set = INSN_CUID (insn);
 }
@@ -2466,7 +2469,7 @@ handle_rd_kill_set (insn, regno, bb)
     }
 }
 
-static void
+void
 dump_rd_table (file, title, bmap)
      FILE *file;
      char *title;
@@ -3321,7 +3324,7 @@ free_cprop_mem ()
 
 /* Dump copy/const propagation data.  */
 
-static void
+void
 dump_cprop_data (file)
      FILE *file;
 {
@@ -3915,7 +3918,7 @@ free_pre_mem ()
 
 /* Dump PRE data.  */
 
-static void
+void
 dump_pre_data (file)
      FILE *file;
 {
@@ -4323,7 +4326,9 @@ pre_insert_insn (expr, bb)
 
   if (GET_CODE (insn) == JUMP_INSN)
     {
+#ifdef HAVE_cc0
       rtx note;
+#endif
 
       /* If this is a jump table, then we can't insert stuff here.  Since
 	 we know the previous real insn must be the tablejump, we insert

gcc/libgcc2.c

@@ -2157,7 +2157,7 @@ __bb_init_prg ()
       bb_hashbuckets = (struct bb_edge **) 
                    malloc (BB_BUCKETS * sizeof (struct bb_edge *));
       if (bb_hashbuckets)
-        bzero ((char *) bb_hashbuckets, BB_BUCKETS);
+        memset (bb_hashbuckets, 0, BB_BUCKETS * sizeof (struct bb_edge *));
     }
 
   if (bb_mode & 12)

gcc/output.h

@@ -171,6 +171,9 @@ extern void make_function_rtl		PROTO((tree));
 extern void declare_weak		PROTO ((tree));
 #endif /* TREE_CODE */
 
+/* Emit any pending weak declarations.  */
+extern void weak_finish			PROTO ((void));
+
 /* Decode an `asm' spec for a declaration as a register name.
    Return the register number, or -1 if nothing specified,
    or -2 if the ASMSPEC is not `cc' or `memory' and is not recognized,

gcc/recog.h

@@ -32,6 +32,7 @@ extern int constrain_operands		PROTO((int, int));
 extern int memory_address_p		PROTO((enum machine_mode, rtx));
 extern int strict_memory_address_p	PROTO((enum machine_mode, rtx));
 extern int validate_replace_rtx		PROTO((rtx, rtx, rtx));
+extern int validate_replace_src		PROTO((rtx, rtx, rtx));
 extern int reg_fits_class_p		PROTO((rtx, enum reg_class, int,
 					       enum machine_mode));
 extern rtx *find_single_use		PROTO((rtx, rtx, rtx *));

gcc/rtl.h

@@ -799,8 +799,10 @@ extern int ceil_log2			PROTO((unsigned HOST_WIDE_INT));
 #define plus_constant_for_output(X,C)  \
   plus_constant_for_output_wide (X, (HOST_WIDE_INT) (C))
 
+/* In explow.c */
 extern rtx plus_constant_wide		 PROTO((rtx, HOST_WIDE_INT));
 extern rtx plus_constant_for_output_wide PROTO((rtx, HOST_WIDE_INT));
+extern void optimize_save_area_alloca	PROTO((rtx));
 
 extern rtx gen_rtx			PVPROTO((enum rtx_code,
 						 enum machine_mode, ...));
@@ -1306,6 +1308,9 @@ extern void dump_combine_total_stats	PROTO ((FILE *));
 #ifdef BUFSIZ
 extern void schedule_insns		PROTO ((FILE *));
 #endif
+#ifdef HAIFA
+extern void fix_sched_param		PROTO ((char *, char *));
+#endif
 
 /* In print-rtl.c */
 extern void debug_rtx			PROTO ((rtx));
@@ -1333,6 +1338,7 @@ extern void preserve_rtl_expr_result			PROTO ((rtx));
 extern void mark_temp_addr_taken			PROTO ((rtx));
 extern void update_temp_slot_address			PROTO ((rtx, rtx));
 extern void use_variable_after				PROTO ((rtx, rtx));
+extern void purge_addressof				PROTO ((rtx));
 
 /* In reload.c */
 extern int operands_match_p		PROTO ((rtx, rtx));
@@ -1404,6 +1410,11 @@ extern rtx expand_mult_highpart		PROTO ((enum machine_mode, rtx,
 						unsigned HOST_WIDE_INT, rtx,
 						int, int));
 
+/* In gcse.c */
+#ifdef BUFSIZ
+extern void gcse_main			PROTO ((rtx, FILE *));
+#endif
+
 /* In global.c */
 extern void mark_elimination		PROTO ((int, int));
 #ifdef BUFSIZ
@@ -1423,6 +1434,16 @@ extern void regclass			PROTO ((rtx, int));
 extern void reg_scan			PROTO ((rtx, int, int));
 extern void fix_register		PROTO ((char *, int, int));
 
+/* In regmove.c */
+#ifdef BUFSIZ
+extern void regmove_optimize		PROTO ((rtx, int, FILE *));
+#endif
+
+/* In reorg.c */
+#ifdef BUFSIZ
+extern void dbr_schedule		PROTO ((rtx, FILE *));
+#endif
+
 /* In optabs.c */
 extern void init_optabs			PROTO ((void));
 
@@ -1445,6 +1466,10 @@ extern void init_caller_save		PROTO ((void));
 
 /* In profile.c */
 extern void init_branch_prob		PROTO ((char *));
+#ifdef BUFSIZ
+extern void branch_prob			PROTO ((rtx, FILE *));
+extern void end_branch_prob		PROTO ((FILE *));
+#endif
 extern void output_func_start_profiler	PROTO ((void));
 
 /* In reg-stack.c */

gcc/toplev.h

@@ -51,4 +51,12 @@ extern void error_for_asm		PVPROTO((struct rtx_def *, char *, ...))
 						ATTRIBUTE_PRINTF_2;
 extern void warning_for_asm		PVPROTO((struct rtx_def *, char *, ...))
 						ATTRIBUTE_PRINTF_2;
+#ifdef _JBLEN
+extern void set_float_handler PROTO((jmp_buf));
+#endif
+
+#ifdef BUFSIZ
+extern void output_quoted_string	PROTO ((FILE *, char *));
+#endif
+
 #endif /* __GCC_TOPLEV_H */

gcc/varasm.c

@@ -42,6 +42,7 @@ Boston, MA 02111-1307, USA.  */
 #include "defaults.h"
 #include "real.h"
 #include "toplev.h"
+#include "dbxout.h"
 
 #include "obstack.h"
 #include "c-pragma.h"