builtins.c (std_expand_builtin_va_start): Remove unused first argument.

	* builtins.c (std_expand_builtin_va_start): Remove unused
	first argument.
	(expand_builtin_va_start): Call EXPAND_BUILTIN_VA_START and
	std_expand_builtin_va_start with just two arguments.
	* expr.h: Update prototypes.

	* alpha-protos.h, alpha.h, alpha.c, arc-protos.h, arc.h,
	arc.c, d30v-protos.h, d30v.h, d30v.c, i386-protos.h, i386.h,
	i386.c, i960-protos.h, i960.h, i960.c, m88k-protos.h, m88k.h,
	m88k.c, mips-protos.h, mips.h, mips.c, mn10300-protos.h,
	mn10300.h, mn10300.c, pa-protos.h, pa.h, pa.c,
	rs6000-protos.h, rs6000.h, rs6000.c, s390-protos.h, s390.h,
	s390.c, sh-protos.h, sh.h, sh.c, sparc-protos.h, sparc.h,
	sparc.c, stormy16-protos.h, stormy16.h, stormy16.c,
	xtensa-protos.h, xtensa.h, xtensa.c:  Remove unused first
	argument from all implementations of EXPAND_BUILTIN_VA_START
	and all uses of std_expand_builtin_va_start.

From-SVN: r55495

45 files changed, 71 insertions, 86 deletions

diff --git a/gcc/config/alpha/alpha-protos.h b/gcc/config/alpha/alpha-protos.h
index 8f5d2d8..a2cfc92 100644
--- a/gcc/config/alpha/alpha-protos.h
+++ b/gcc/config/alpha/alpha-protos.h
@@ -135,7 +135,7 @@ extern void alpha_initialize_trampoline PARAMS ((rtx, rtx, rtx, int, int, int));
 extern void alpha_reorg PARAMS ((rtx));
 
 extern tree alpha_build_va_list PARAMS ((void));
-extern void alpha_va_start PARAMS ((int, tree, rtx));
+extern void alpha_va_start PARAMS ((tree, rtx));
 extern rtx alpha_va_arg PARAMS ((tree, tree));
 extern rtx function_arg PARAMS ((CUMULATIVE_ARGS, enum machine_mode,
 				 tree, int));
diff --git a/gcc/config/alpha/alpha.c b/gcc/config/alpha/alpha.c
index 0b6aee0..ce9c6cd 100644
--- a/gcc/config/alpha/alpha.c
+++ b/gcc/config/alpha/alpha.c
@@ -6162,8 +6162,7 @@ alpha_build_va_list ()
 }
 
 void
-alpha_va_start (stdarg_p, valist, nextarg)
-     int stdarg_p ATTRIBUTE_UNUSED;
+alpha_va_start (valist, nextarg)
      tree valist;
      rtx nextarg ATTRIBUTE_UNUSED;
 {
@@ -6174,7 +6173,7 @@ alpha_va_start (stdarg_p, valist, nextarg)
     return;
 
   if (TARGET_ABI_UNICOSMK)
-    std_expand_builtin_va_start (1, valist, nextarg);
+    std_expand_builtin_va_start (valist, nextarg);
 
   /* For Unix, SETUP_INCOMING_VARARGS moves the starting address base
      up by 48, storing fp arg registers in the first 48 bytes, and the
diff --git a/gcc/config/alpha/alpha.h b/gcc/config/alpha/alpha.h
index 7beee86..b779858 100644
--- a/gcc/config/alpha/alpha.h
+++ b/gcc/config/alpha/alpha.h
@@ -1984,8 +1984,8 @@ do {						\
   (VALIST) = alpha_build_va_list ()
 
 /* Implement `va_start' for varargs and stdarg.  */
-#define EXPAND_BUILTIN_VA_START(stdarg, valist, nextarg) \
-  alpha_va_start (stdarg, valist, nextarg)
+#define EXPAND_BUILTIN_VA_START(valist, nextarg) \
+  alpha_va_start (valist, nextarg)
 
 /* Implement `va_arg'.  */
 #define EXPAND_BUILTIN_VA_ARG(valist, type) \
diff --git a/gcc/config/arc/arc-protos.h b/gcc/config/arc/arc-protos.h
index fef052b..cbb8ac2 100644
--- a/gcc/config/arc/arc-protos.h
+++ b/gcc/config/arc/arc-protos.h
@@ -20,7 +20,7 @@ Boston, MA 02111-1307, USA.  */
 
 #ifdef RTX_CODE
 #ifdef TREE_CODE
-extern void arc_va_start PARAMS ((int, tree, rtx));
+extern void arc_va_start PARAMS ((tree, rtx));
 extern rtx arc_va_arg PARAMS ((tree, tree));
 #endif /* TREE_CODE */
 
diff --git a/gcc/config/arc/arc.c b/gcc/config/arc/arc.c
index 63767dd..f1efc05 100644
--- a/gcc/config/arc/arc.c
+++ b/gcc/config/arc/arc.c
@@ -2261,8 +2261,7 @@ arc_ccfsm_record_branch_deleted ()
 }
 
 void
-arc_va_start (stdarg_p, valist, nextarg)
-     int stdarg_p ATTRIBUTE_UNUSED;
+arc_va_start (valist, nextarg)
      tree valist;
      rtx nextarg;
 {
@@ -2271,7 +2270,7 @@ arc_va_start (stdarg_p, valist, nextarg)
       && (current_function_args_info & 1))
     nextarg = plus_constant (nextarg, UNITS_PER_WORD);
 
-  std_expand_builtin_va_start (1, valist, nextarg);
+  std_expand_builtin_va_start (valist, nextarg);
 }
 
 rtx
diff --git a/gcc/config/arc/arc.h b/gcc/config/arc/arc.h
index db8b8d4..1acff9e 100644
--- a/gcc/config/arc/arc.h
+++ b/gcc/config/arc/arc.h
@@ -1410,8 +1410,8 @@ enum arc_function_type {
 
 
 /* Implement `va_start' for varargs and stdarg.  */
-#define EXPAND_BUILTIN_VA_START(stdarg, valist, nextarg) \
-  arc_va_start (stdarg, valist, nextarg)
+#define EXPAND_BUILTIN_VA_START(valist, nextarg) \
+  arc_va_start (valist, nextarg)
 
 /* Implement `va_arg'.  */
 #define EXPAND_BUILTIN_VA_ARG(valist, type) \
diff --git a/gcc/config/d30v/d30v-protos.h b/gcc/config/d30v/d30v-protos.h
index 162a717..dbc908a 100644
--- a/gcc/config/d30v/d30v-protos.h
+++ b/gcc/config/d30v/d30v-protos.h
@@ -105,7 +105,7 @@ extern void d30v_setup_incoming_varargs	PARAMS ((CUMULATIVE_ARGS *,
 						 tree, int *, int));
 extern tree d30v_build_va_list		PARAMS ((void));
 #ifdef RTX_CODE
-extern void d30v_expand_builtin_va_start PARAMS ((int, tree, rtx));
+extern void d30v_expand_builtin_va_start PARAMS ((tree, rtx));
 extern rtx d30v_expand_builtin_va_arg	PARAMS ((tree, tree));
 #endif	/* RTX_CODE */
 #endif	/* TREE_CODE */
diff --git a/gcc/config/d30v/d30v.c b/gcc/config/d30v/d30v.c
index 2ce3468..7aef414 100644
--- a/gcc/config/d30v/d30v.c
+++ b/gcc/config/d30v/d30v.c
@@ -2225,8 +2225,7 @@ d30v_build_va_list ()
 /* Expand __builtin_va_start to do the va_start macro.  */
 
 void 
-d30v_expand_builtin_va_start (stdarg_p, valist, nextarg)
-     int stdarg_p ATTRIBUTE_UNUSED;
+d30v_expand_builtin_va_start (valist, nextarg)
      tree valist;
      rtx nextarg ATTRIBUTE_UNUSED;
 {
diff --git a/gcc/config/d30v/d30v.h b/gcc/config/d30v/d30v.h
index b039d3e..45b9e7b 100644
--- a/gcc/config/d30v/d30v.h
+++ b/gcc/config/d30v/d30v.h
@@ -2013,8 +2013,8 @@ typedef struct machine_function GTY(())
    'next' argument after the variable arguments.  If not defined, a standard
    implementation will be defined that works for arguments passed on the stack.  */
 
-#define EXPAND_BUILTIN_VA_START(STDARG_P, VALIST, NEXTARG)		\
-(d30v_expand_builtin_va_start(STDARG_P, VALIST, NEXTARG))
+#define EXPAND_BUILTIN_VA_START(VALIST, NEXTARG)		\
+  d30v_expand_builtin_va_start(VALIST, NEXTARG)
 
 /* Implement the stdarg/varargs va_arg macro.  VALIST is the variable of type
    va_list as a tree, TYPE is the type passed to va_arg.  */
diff --git a/gcc/config/i386/i386-protos.h b/gcc/config/i386/i386-protos.h
index 83fe340..d49ce1a 100644
--- a/gcc/config/i386/i386-protos.h
+++ b/gcc/config/i386/i386-protos.h
@@ -153,7 +153,7 @@ extern bool ix86_function_value_regno_p PARAMS ((int));
 extern bool ix86_function_arg_regno_p PARAMS ((int));
 extern int ix86_function_arg_boundary PARAMS ((enum machine_mode, tree));
 extern int ix86_return_in_memory PARAMS ((tree));
-extern void ix86_va_start PARAMS ((int, tree, rtx));
+extern void ix86_va_start PARAMS ((tree, rtx));
 extern rtx ix86_va_arg PARAMS ((tree, tree));
 extern void ix86_setup_incoming_varargs PARAMS ((CUMULATIVE_ARGS *,
 						 enum machine_mode,
diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
index 0911b4a..5c49f17 100644
--- a/gcc/config/i386/i386.c
+++ b/gcc/config/i386/i386.c
@@ -2446,8 +2446,7 @@ ix86_setup_incoming_varargs (cum, mode, type, pretend_size, no_rtl)
 /* Implement va_start.  */
 
 void
-ix86_va_start (stdarg_p, valist, nextarg)
-     int stdarg_p ATTRIBUTE_UNUSED;
+ix86_va_start (valist, nextarg)
      tree valist;
      rtx nextarg;
 {
@@ -2458,7 +2457,7 @@ ix86_va_start (stdarg_p, valist, nextarg)
   /* Only 64bit target needs something special.  */
   if (!TARGET_64BIT)
     {
-      std_expand_builtin_va_start (1, valist, nextarg);
+      std_expand_builtin_va_start (valist, nextarg);
       return;
     }
 
diff --git a/gcc/config/i386/i386.h b/gcc/config/i386/i386.h
index 826e778..be4e1b6 100644
--- a/gcc/config/i386/i386.h
+++ b/gcc/config/i386/i386.h
@@ -1695,8 +1695,8 @@ typedef struct ix86_args {
   ((VALIST) = ix86_build_va_list ())
 
 /* Implement `va_start' for varargs and stdarg.  */
-#define EXPAND_BUILTIN_VA_START(STDARG, VALIST, NEXTARG) \
-  ix86_va_start ((STDARG), (VALIST), (NEXTARG))
+#define EXPAND_BUILTIN_VA_START(VALIST, NEXTARG) \
+  ix86_va_start (VALIST, NEXTARG)
 
 /* Implement `va_arg'.  */
 #define EXPAND_BUILTIN_VA_ARG(VALIST, TYPE) \
diff --git a/gcc/config/i960/i960-protos.h b/gcc/config/i960/i960-protos.h
index cdebff1..7e2685d 100644
--- a/gcc/config/i960/i960-protos.h
+++ b/gcc/config/i960/i960-protos.h
@@ -73,7 +73,7 @@ extern struct rtx_def *i960_function_arg PARAMS ((CUMULATIVE_ARGS *,
 						  enum machine_mode,
 						  tree, int));
 extern rtx i960_va_arg PARAMS ((tree, tree));
-extern void i960_va_start PARAMS ((int, tree, rtx));
+extern void i960_va_start PARAMS ((tree, rtx));
 #endif /* TREE_CODE */
 extern enum reg_class secondary_reload_class PARAMS ((enum reg_class, enum machine_mode, rtx));
 #endif /* RTX_CODE */
diff --git a/gcc/config/i960/i960.c b/gcc/config/i960/i960.c
index fab5f58..6aec8c5 100644
--- a/gcc/config/i960/i960.c
+++ b/gcc/config/i960/i960.c
@@ -2554,8 +2554,7 @@ i960_build_va_list ()
 /* Implement `va_start' for varargs and stdarg.  */
 
 void
-i960_va_start (stdarg_p, valist, nextarg)
-     int stdarg_p ATTRIBUTE_UNUSED;
+i960_va_start (valist, nextarg)
      tree valist;
      rtx nextarg ATTRIBUTE_UNUSED;
 {
diff --git a/gcc/config/i960/i960.h b/gcc/config/i960/i960.h
index 54dc02f..ee1c606 100644
--- a/gcc/config/i960/i960.h
+++ b/gcc/config/i960/i960.h
@@ -872,8 +872,8 @@ enum reg_class { NO_REGS, GLOBAL_REGS, LOCAL_REGS, LOCAL_OR_GLOBAL_REGS,
   (VALIST) = i960_build_va_list ()
 
 /* Implement `va_start' for varargs and stdarg.  */
-#define EXPAND_BUILTIN_VA_START(stdarg, valist, nextarg) \
-  i960_va_start (stdarg, valist, nextarg)
+#define EXPAND_BUILTIN_VA_START(valist, nextarg) \
+  i960_va_start (valist, nextarg)
 
 /* Implement `va_arg'.  */
 #define EXPAND_BUILTIN_VA_ARG(valist, type) \
diff --git a/gcc/config/m88k/m88k-protos.h b/gcc/config/m88k/m88k-protos.h
index 9d121da..b7bba67 100644
--- a/gcc/config/m88k/m88k-protos.h
+++ b/gcc/config/m88k/m88k-protos.h
@@ -67,7 +67,7 @@ extern int equality_op PARAMS ((rtx, enum machine_mode));
 extern int pc_or_label_ref PARAMS ((rtx, enum machine_mode));
 extern int symbolic_operand PARAMS ((rtx, enum machine_mode));
 #ifdef TREE_CODE
-extern void m88k_va_start PARAMS ((int, tree, rtx));
+extern void m88k_va_start PARAMS ((tree, rtx));
 #endif /* TREE_CODE */
 #endif /* RTX_CODE */
 
diff --git a/gcc/config/m88k/m88k.c b/gcc/config/m88k/m88k.c
index 2f83e54..5da1a90 100644
--- a/gcc/config/m88k/m88k.c
+++ b/gcc/config/m88k/m88k.c
@@ -2618,8 +2618,7 @@ m88k_build_va_list ()
 /* Implement `va_start' for varargs and stdarg.  */
 
 void
-m88k_va_start (stdarg_p, valist, nextarg)
-     int stdarg_p ATTRIBUTE_UNUSED;
+m88k_va_start (valist, nextarg)
      tree valist;
      rtx nextarg ATTRIBUTE_UNUSED;
 {
diff --git a/gcc/config/m88k/m88k.h b/gcc/config/m88k/m88k.h
index 475f23b..a4aba85 100644
--- a/gcc/config/m88k/m88k.h
+++ b/gcc/config/m88k/m88k.h
@@ -1025,8 +1025,8 @@ enum reg_class { NO_REGS, AP_REG, XRF_REGS, GENERAL_REGS, AGRF_REGS,
   (VALIST) = m88k_build_va_list ()
 
 /* Implement `va_start' for varargs and stdarg.  */
-#define EXPAND_BUILTIN_VA_START(stdarg, valist, nextarg) \
-  m88k_va_start (stdarg, valist, nextarg)
+#define EXPAND_BUILTIN_VA_START(valist, nextarg) \
+  m88k_va_start (valist, nextarg)
 
 /* Implement `va_arg'.  */
 #define EXPAND_BUILTIN_VA_ARG(valist, type) \
diff --git a/gcc/config/mips/mips-protos.h b/gcc/config/mips/mips-protos.h
index 7c366ae..0b585a5 100644
--- a/gcc/config/mips/mips-protos.h
+++ b/gcc/config/mips/mips-protos.h
@@ -78,7 +78,7 @@ extern int		mips16_constant_after_function_p PARAMS ((tree));
 extern int		mips_output_external PARAMS ((FILE *, tree,
 						      const char *));
 extern tree		mips_build_va_list PARAMS ((void));
-extern void		mips_va_start PARAMS ((int, tree, rtx));
+extern void		mips_va_start PARAMS ((tree, rtx));
 extern struct rtx_def  *mips_va_arg PARAMS ((tree, tree));
 
 extern void		expand_block_move PARAMS ((rtx *));
diff --git a/gcc/config/mips/mips.c b/gcc/config/mips/mips.c
index e3a64d3..64c458f 100644
--- a/gcc/config/mips/mips.c
+++ b/gcc/config/mips/mips.c
@@ -4609,8 +4609,7 @@ mips_build_va_list ()
 /* Implement va_start.   stdarg_p is always 1.  */
 
 void
-mips_va_start (stdarg_p, valist, nextarg)
-     int stdarg_p ATTRIBUTE_UNUSED;
+mips_va_start (valist, nextarg)
      tree valist;
      rtx nextarg;
 {
@@ -4689,11 +4688,11 @@ mips_va_start (stdarg_p, valist, nextarg)
 	  /* Everything is in the GPR save area, or in the overflow
 	     area which is contiguous with it.  */
 	  nextarg = plus_constant (nextarg, -gpr_save_area_size);
-	  std_expand_builtin_va_start (1, valist, nextarg);
+	  std_expand_builtin_va_start (valist, nextarg);
 	}
     }
   else
-    std_expand_builtin_va_start (1, valist, nextarg);
+    std_expand_builtin_va_start (valist, nextarg);
 }
 
 /* Implement va_arg.  */
diff --git a/gcc/config/mips/mips.h b/gcc/config/mips/mips.h
index f3c3add..309ea45 100644
--- a/gcc/config/mips/mips.h
+++ b/gcc/config/mips/mips.h
@@ -2745,8 +2745,8 @@ typedef struct mips_args {
   (VALIST) = mips_build_va_list ()
 
 /* Implement `va_start' for varargs and stdarg.  */
-#define EXPAND_BUILTIN_VA_START(stdarg, valist, nextarg) \
-  mips_va_start (stdarg, valist, nextarg)
+#define EXPAND_BUILTIN_VA_START(valist, nextarg) \
+  mips_va_start (valist, nextarg)
 
 /* Implement `va_arg'.  */
 #define EXPAND_BUILTIN_VA_ARG(valist, type) \
diff --git a/gcc/config/mn10300/mn10300-protos.h b/gcc/config/mn10300/mn10300-protos.h
index abd17ed..d5a1c44 100644
--- a/gcc/config/mn10300/mn10300-protos.h
+++ b/gcc/config/mn10300/mn10300-protos.h
@@ -22,7 +22,7 @@ Boston, MA 02111-1307, USA.  */
 #ifdef RTX_CODE
 
 #ifdef TREE_CODE
-extern void mn10300_va_start PARAMS ((int, tree, rtx));
+extern void mn10300_va_start PARAMS ((tree, rtx));
 #endif /* TREE_CODE */
 
 extern struct rtx_def *legitimize_address PARAMS ((rtx, rtx, enum machine_mode));
diff --git a/gcc/config/mn10300/mn10300.c b/gcc/config/mn10300/mn10300.c
index e47c8c1f..52284c0 100644
--- a/gcc/config/mn10300/mn10300.c
+++ b/gcc/config/mn10300/mn10300.c
@@ -874,13 +874,12 @@ mn10300_builtin_saveregs ()
 }
 
 void
-mn10300_va_start (stdarg_p, valist, nextarg)
-     int stdarg_p ATTRIBUTE_UNUSED;
+mn10300_va_start (valist, nextarg)
      tree valist;
      rtx nextarg;
 {
   nextarg = expand_builtin_saveregs ();
-  std_expand_builtin_va_start (stdarg_p, valist, nextarg);
+  std_expand_builtin_va_start (valist, nextarg);
 }
 
 rtx
diff --git a/gcc/config/mn10300/mn10300.h b/gcc/config/mn10300/mn10300.h
index ddebedd..b8b9f4d 100644
--- a/gcc/config/mn10300/mn10300.h
+++ b/gcc/config/mn10300/mn10300.h
@@ -648,8 +648,8 @@ struct cum_arg {int nbytes; };
 #define EXPAND_BUILTIN_SAVEREGS() mn10300_builtin_saveregs ()
 
 /* Implement `va_start' for varargs and stdarg.  */
-#define EXPAND_BUILTIN_VA_START(stdarg, valist, nextarg) \
-  mn10300_va_start (stdarg, valist, nextarg)
+#define EXPAND_BUILTIN_VA_START(valist, nextarg) \
+  mn10300_va_start (valist, nextarg)
 
 /* Implement `va_arg'.  */
 #define EXPAND_BUILTIN_VA_ARG(valist, type) \
diff --git a/gcc/config/pa/pa-protos.h b/gcc/config/pa/pa-protos.h
index 8f1c330..89942f5 100644
--- a/gcc/config/pa/pa-protos.h
+++ b/gcc/config/pa/pa-protos.h
@@ -31,7 +31,7 @@ extern int function_label_operand PARAMS ((rtx, enum machine_mode));
 extern int lhs_lshift_cint_operand PARAMS ((rtx, enum machine_mode));
 
 #ifdef TREE_CODE
-extern void hppa_va_start PARAMS ((int, tree, rtx));
+extern void hppa_va_start PARAMS ((tree, rtx));
 extern rtx hppa_va_arg PARAMS ((tree, tree));
 #endif /* TREE_CODE */
 extern rtx hppa_legitimize_address PARAMS ((rtx, rtx, enum machine_mode));
diff --git a/gcc/config/pa/pa.c b/gcc/config/pa/pa.c
index 7619f2b..76beee0 100644
--- a/gcc/config/pa/pa.c
+++ b/gcc/config/pa/pa.c
@@ -5182,13 +5182,12 @@ hppa_builtin_saveregs ()
 }
 
 void
-hppa_va_start (stdarg_p, valist, nextarg)
-     int stdarg_p ATTRIBUTE_UNUSED;
+hppa_va_start (valist, nextarg)
      tree valist;
      rtx nextarg;
 {
   nextarg = expand_builtin_saveregs ();
-  std_expand_builtin_va_start (1, valist, nextarg);
+  std_expand_builtin_va_start (valist, nextarg);
 }
 
 rtx
diff --git a/gcc/config/pa/pa.h b/gcc/config/pa/pa.h
index a9c23ac..5026536 100644
--- a/gcc/config/pa/pa.h
+++ b/gcc/config/pa/pa.h
@@ -1039,8 +1039,8 @@ extern int may_call_alloca;
 
 /* Implement `va_start' for varargs and stdarg.  */
 
-#define EXPAND_BUILTIN_VA_START(stdarg, valist, nextarg) \
-  hppa_va_start (stdarg, valist, nextarg)
+#define EXPAND_BUILTIN_VA_START(valist, nextarg) \
+  hppa_va_start (valist, nextarg)
 
 /* Implement `va_arg'.  */
 
diff --git a/gcc/config/rs6000/rs6000-protos.h b/gcc/config/rs6000/rs6000-protos.h
index 92a2f35..50a75c7 100644
--- a/gcc/config/rs6000/rs6000-protos.h
+++ b/gcc/config/rs6000/rs6000-protos.h
@@ -28,7 +28,7 @@ Boston, MA 02111-1307, USA.  */
 
 #ifdef TREE_CODE
 extern void init_cumulative_args PARAMS ((CUMULATIVE_ARGS *, tree, rtx, int));
-extern void rs6000_va_start PARAMS ((int, tree, rtx));
+extern void rs6000_va_start PARAMS ((tree, rtx));
 #endif /* TREE_CODE */
 
 extern struct rtx_def *rs6000_got_register PARAMS ((rtx));
diff --git a/gcc/config/rs6000/rs6000.c b/gcc/config/rs6000/rs6000.c
index fef0e17..ca72b8c 100644
--- a/gcc/config/rs6000/rs6000.c
+++ b/gcc/config/rs6000/rs6000.c
@@ -3098,8 +3098,7 @@ rs6000_build_va_list ()
 /* Implement va_start.  */
 
 void
-rs6000_va_start (stdarg_p, valist, nextarg)
-     int stdarg_p ATTRIBUTE_UNUSED;
+rs6000_va_start (valist, nextarg)
      tree valist;
      rtx nextarg;
 {
@@ -3110,7 +3109,7 @@ rs6000_va_start (stdarg_p, valist, nextarg)
   /* Only SVR4 needs something special.  */
   if (DEFAULT_ABI != ABI_V4)
     {
-      std_expand_builtin_va_start (1, valist, nextarg);
+      std_expand_builtin_va_start (valist, nextarg);
       return;
     }
 
diff --git a/gcc/config/rs6000/rs6000.h b/gcc/config/rs6000/rs6000.h
index 100f27e..51170c0 100644
--- a/gcc/config/rs6000/rs6000.h
+++ b/gcc/config/rs6000/rs6000.h
@@ -1682,8 +1682,8 @@ typedef struct rs6000_args
   (VALIST) = rs6000_build_va_list ()
 
 /* Implement `va_start' for varargs and stdarg.  */
-#define EXPAND_BUILTIN_VA_START(stdarg, valist, nextarg) \
-  rs6000_va_start (stdarg, valist, nextarg)
+#define EXPAND_BUILTIN_VA_START(valist, nextarg) \
+  rs6000_va_start (valist, nextarg)
 
 /* Implement `va_arg'.  */
 #define EXPAND_BUILTIN_VA_ARG(valist, type) \
diff --git a/gcc/config/s390/s390-protos.h b/gcc/config/s390/s390-protos.h
index cd4ac10..f06095a 100644
--- a/gcc/config/s390/s390-protos.h
+++ b/gcc/config/s390/s390-protos.h
@@ -78,7 +78,7 @@ extern void s390_function_arg_advance PARAMS ((CUMULATIVE_ARGS *, enum machine_m
 extern tree s390_build_va_list PARAMS ((void));
 #ifdef RTX_CODE
 extern rtx s390_function_arg PARAMS ((CUMULATIVE_ARGS *, enum machine_mode, tree, int));
-extern void s390_va_start PARAMS ((int, tree, rtx));
+extern void s390_va_start PARAMS ((tree, rtx));
 extern rtx s390_va_arg PARAMS ((tree, tree));
 #endif /* RTX_CODE */
 #endif /* TREE_CODE */
diff --git a/gcc/config/s390/s390.c b/gcc/config/s390/s390.c
index cf1edd2..5a12ed9 100644
--- a/gcc/config/s390/s390.c
+++ b/gcc/config/s390/s390.c
@@ -3962,8 +3962,7 @@ s390_build_va_list ()
        (relative to the virtual arg pointer).  */
 
 void
-s390_va_start (stdarg_p, valist, nextarg)
-     int stdarg_p ATTRIBUTE_UNUSED;
+s390_va_start (valist, nextarg)
      tree valist;
      rtx nextarg ATTRIBUTE_UNUSED;
 {
diff --git a/gcc/config/s390/s390.h b/gcc/config/s390/s390.h
index 676a57d..05875b4 100644
--- a/gcc/config/s390/s390.h
+++ b/gcc/config/s390/s390.h
@@ -748,8 +748,8 @@ CUMULATIVE_ARGS;
 
 /* Implement `va_start' for varargs and stdarg.  */
 
-#define EXPAND_BUILTIN_VA_START(stdarg, valist, nextarg) \
-  s390_va_start (stdarg, valist, nextarg)
+#define EXPAND_BUILTIN_VA_START(valist, nextarg) \
+  s390_va_start (valist, nextarg)
 
 /* Implement `va_arg'.  */
 
diff --git a/gcc/config/sh/sh-protos.h b/gcc/config/sh/sh-protos.h
index 9aa1143..ba74158 100644
--- a/gcc/config/sh/sh-protos.h
+++ b/gcc/config/sh/sh-protos.h
@@ -102,7 +102,7 @@ extern void expand_fp_branch PARAMS ((rtx (*)(void), rtx (*)(void)));
 extern int sh_insn_length_adjustment PARAMS ((rtx));
 extern int sh_can_redirect_branch PARAMS ((rtx, rtx));
 #ifdef TREE_CODE
-extern void sh_va_start PARAMS ((int, tree, rtx));
+extern void sh_va_start PARAMS ((tree, rtx));
 extern rtx sh_va_arg PARAMS ((tree, tree));
 #endif /* TREE_CODE */
 #endif /* RTX_CODE */
diff --git a/gcc/config/sh/sh.c b/gcc/config/sh/sh.c
index 8fe7114..5687c0a 100644
--- a/gcc/config/sh/sh.c
+++ b/gcc/config/sh/sh.c
@@ -5260,8 +5260,7 @@ sh_build_va_list ()
 /* Implement `va_start' for varargs and stdarg.  */
 
 void
-sh_va_start (stdarg_p, valist, nextarg)
-     int stdarg_p ATTRIBUTE_UNUSED;
+sh_va_start (valist, nextarg)
      tree valist;
      rtx nextarg;
 {
@@ -5273,13 +5272,13 @@ sh_va_start (stdarg_p, valist, nextarg)
   if (TARGET_SH5)
     {
       expand_builtin_saveregs ();
-      std_expand_builtin_va_start (1, valist, nextarg);
+      std_expand_builtin_va_start (valist, nextarg);
       return;
     }
 
   if ((! TARGET_SH3E && ! TARGET_SH4) || TARGET_HITACHI)
     {
-      std_expand_builtin_va_start (1, valist, nextarg);
+      std_expand_builtin_va_start (valist, nextarg);
       return;
     }
 
diff --git a/gcc/config/sh/sh.h b/gcc/config/sh/sh.h
index c30c5f6..9d15fcf 100644
--- a/gcc/config/sh/sh.h
+++ b/gcc/config/sh/sh.h
@@ -2018,8 +2018,8 @@ while (0)
   (VALIST) = sh_build_va_list ()
 
 /* Implement `va_start' for varargs and stdarg.  */
-#define EXPAND_BUILTIN_VA_START(stdarg, valist, nextarg) \
-  sh_va_start (stdarg, valist, nextarg)
+#define EXPAND_BUILTIN_VA_START(valist, nextarg) \
+  sh_va_start (valist, nextarg)
 
 /* Implement `va_arg'.  */
 #define EXPAND_BUILTIN_VA_ARG(valist, type) \
diff --git a/gcc/config/sparc/sparc-protos.h b/gcc/config/sparc/sparc-protos.h
index 6a1c3c2..fc814a8 100644
--- a/gcc/config/sparc/sparc-protos.h
+++ b/gcc/config/sparc/sparc-protos.h
@@ -42,7 +42,7 @@ extern int function_arg_pass_by_reference PARAMS ((const CUMULATIVE_ARGS *,
 extern struct rtx_def *sparc_builtin_saveregs PARAMS ((void));
 #ifdef RTX_CODE
 extern void init_cumulative_args PARAMS ((CUMULATIVE_ARGS *, tree, rtx, int));
-extern void sparc_va_start PARAMS ((int, tree, rtx));
+extern void sparc_va_start PARAMS ((tree, rtx));
 #endif
 extern struct rtx_def *sparc_va_arg PARAMS ((tree, tree));
 extern unsigned long sparc_type_code PARAMS ((tree));
diff --git a/gcc/config/sparc/sparc.c b/gcc/config/sparc/sparc.c
index b9745c7..971b6f2 100644
--- a/gcc/config/sparc/sparc.c
+++ b/gcc/config/sparc/sparc.c
@@ -5244,13 +5244,12 @@ sparc_builtin_saveregs ()
 /* Implement `va_start' for varargs and stdarg.  */
 
 void
-sparc_va_start (stdarg_p, valist, nextarg)
-     int stdarg_p ATTRIBUTE_UNUSED;
+sparc_va_start (valist, nextarg)
      tree valist;
      rtx nextarg;
 {
   nextarg = expand_builtin_saveregs ();
-  std_expand_builtin_va_start (1, valist, nextarg);
+  std_expand_builtin_va_start (valist, nextarg);
 }
 
 /* Implement `va_arg'.  */
diff --git a/gcc/config/sparc/sparc.h b/gcc/config/sparc/sparc.h
index c3c16e2..8d489e5 100644
--- a/gcc/config/sparc/sparc.h
+++ b/gcc/config/sparc/sparc.h
@@ -1912,8 +1912,8 @@ do {									\
 #define EXPAND_BUILTIN_SAVEREGS() sparc_builtin_saveregs ()
 
 /* Implement `va_start' for varargs and stdarg.  */
-#define EXPAND_BUILTIN_VA_START(stdarg, valist, nextarg) \
-  sparc_va_start (stdarg, valist, nextarg)
+#define EXPAND_BUILTIN_VA_START(valist, nextarg) \
+  sparc_va_start (valist, nextarg)
 
 /* Implement `va_arg'.  */
 #define EXPAND_BUILTIN_VA_ARG(valist, type) \
diff --git a/gcc/config/stormy16/stormy16-protos.h b/gcc/config/stormy16/stormy16-protos.h
index a181a36..dc58871 100644
--- a/gcc/config/stormy16/stormy16-protos.h
+++ b/gcc/config/stormy16/stormy16-protos.h
@@ -41,7 +41,7 @@ extern tree    xstormy16_build_va_list PARAMS ((void));
 #endif
 
 #if defined (TREE_CODE) && defined (RTX_CODE)
-extern void    xstormy16_expand_builtin_va_start PARAMS ((int, tree, rtx));
+extern void    xstormy16_expand_builtin_va_start PARAMS ((tree, rtx));
 extern rtx     xstormy16_expand_builtin_va_arg PARAMS ((tree, tree));
 extern void    xstormy16_initialize_trampoline PARAMS ((rtx, rtx, rtx));
 extern rtx     xstormy16_function_value PARAMS ((tree, tree));
diff --git a/gcc/config/stormy16/stormy16.c b/gcc/config/stormy16/stormy16.c
index 019e18a..6b9f153 100644
--- a/gcc/config/stormy16/stormy16.c
+++ b/gcc/config/stormy16/stormy16.c
@@ -1175,8 +1175,7 @@ xstormy16_build_va_list ()
    variable to initialize.  NEXTARG is the machine independent notion of the
    'next' argument after the variable arguments.  */
 void
-xstormy16_expand_builtin_va_start (stdarg_p, valist, nextarg)
-     int stdarg_p ATTRIBUTE_UNUSED;
+xstormy16_expand_builtin_va_start (valist, nextarg)
      tree valist;
      rtx nextarg ATTRIBUTE_UNUSED;
 {
diff --git a/gcc/config/stormy16/stormy16.h b/gcc/config/stormy16/stormy16.h
index e9871cc..3155997 100644
--- a/gcc/config/stormy16/stormy16.h
+++ b/gcc/config/stormy16/stormy16.h
@@ -1729,8 +1729,8 @@ enum reg_class
    variable to initialize.  NEXTARG is the machine independent notion of the
    'next' argument after the variable arguments.  If not defined, a standard
    implementation will be defined that works for arguments passed on the stack.  */
-#define EXPAND_BUILTIN_VA_START(STDARG_P, VALIST, NEXTARG) \
-  xstormy16_expand_builtin_va_start (STDARG_P, VALIST, NEXTARG)
+#define EXPAND_BUILTIN_VA_START(VALIST, NEXTARG) \
+  xstormy16_expand_builtin_va_start (VALIST, NEXTARG)
 
 /* Implement the stdarg/varargs va_arg macro.  VALIST is the variable of type
    va_list as a tree, TYPE is the type passed to va_arg.  */
diff --git a/gcc/config/xtensa/xtensa-protos.h b/gcc/config/xtensa/xtensa-protos.h
index bb640bb..ddeb5f3 100644
--- a/gcc/config/xtensa/xtensa-protos.h
+++ b/gcc/config/xtensa/xtensa-protos.h
@@ -77,7 +77,7 @@ extern char * xtensa_emit_call PARAMS ((int, rtx *));
 
 #ifdef TREE_CODE
 extern void init_cumulative_args PARAMS ((CUMULATIVE_ARGS *, tree, rtx));
-extern void xtensa_va_start PARAMS ((int, tree, rtx));
+extern void xtensa_va_start PARAMS ((tree, rtx));
 extern rtx xtensa_va_arg PARAMS ((tree, tree));
 #endif /* TREE_CODE */
 
diff --git a/gcc/config/xtensa/xtensa.c b/gcc/config/xtensa/xtensa.c
index bf669da..572687a 100644
--- a/gcc/config/xtensa/xtensa.c
+++ b/gcc/config/xtensa/xtensa.c
@@ -2393,8 +2393,7 @@ xtensa_builtin_saveregs ()
    current function to fill in an initial va_list. */
 
 void
-xtensa_va_start (stdarg_p, valist, nextarg)
-     int stdarg_p ATTRIBUTE_UNUSED;
+xtensa_va_start (valist, nextarg)
      tree valist;
      rtx nextarg ATTRIBUTE_UNUSED;
 {
diff --git a/gcc/config/xtensa/xtensa.h b/gcc/config/xtensa/xtensa.h
index 836bd8d..f2e4702 100644
--- a/gcc/config/xtensa/xtensa.h
+++ b/gcc/config/xtensa/xtensa.h
@@ -1035,8 +1035,8 @@ typedef struct xtensa_args {
   xtensa_builtin_saveregs
 
 /* Implement `va_start' for varargs and stdarg.  */
-#define EXPAND_BUILTIN_VA_START(stdarg, valist, nextarg) \
-  xtensa_va_start (stdarg, valist, nextarg)
+#define EXPAND_BUILTIN_VA_START(valist, nextarg) \
+  xtensa_va_start (valist, nextarg)
 
 /* Implement `va_arg'.  */
 #define EXPAND_BUILTIN_VA_ARG(valist, type) \