calls.c (expand_call): Update comments.

	* calls.c (expand_call): Update comments.
	* system.h (PRETEND_OUTGOING_VARARGS_NAMED): Poison.
	* targhooks.c: Do not refer to PRETEND_OUTGOING_VARARGS_NAMED.

From-SVN: r74770

gcc/ChangeLog

+2003-12-17  Kazu Hirata  <kazu@cs.umass.edu>
+
+	* calls.c (expand_call): Update comments.
+	* system.h (PRETEND_OUTGOING_VARARGS_NAMED): Poison.
+	* targhooks.c: Do not refer to PRETEND_OUTGOING_VARARGS_NAMED.
+
 2003-12-17  James E Wilson  <wilson@specifixinc.com>
 	    Roger Sayle  <roger@eyesopen.com>
 	

gcc/calls.c

@@ -2413,15 +2413,16 @@ expand_call (tree exp, rtx target, int ignore)
      (If no anonymous args follow, the result of list_length is actually
      one too large.  This is harmless.)
 
-     If PRETEND_OUTGOING_VARARGS_NAMED is set and STRICT_ARGUMENT_NAMING is
-     zero, this machine will be able to place unnamed args that were
-     passed in registers into the stack.  So treat all args as named.
-     This allows the insns emitting for a specific argument list to be
-     independent of the function declaration.
-
-     If PRETEND_OUTGOING_VARARGS_NAMED is not set, we do not have any
-     reliable way to pass unnamed args in registers, so we must force
-     them into memory.  */
+     If targetm.calls.pretend_outgoing_varargs_named() returns
+     nonzero, and STRICT_ARGUMENT_NAMING is zero, this machine will be
+     able to place unnamed args that were passed in registers into the
+     stack.  So treat all args as named.  This allows the insns
+     emitting for a specific argument list to be independent of the
+     function declaration.
+
+     If targetm.calls.pretend_outgoing_varargs_named() returns zero,
+     we do not have any reliable way to pass unnamed args in
+     registers, so we must force them into memory.  */
 
   if ((targetm.calls.strict_argument_naming (&args_so_far)
        || ! targetm.calls.pretend_outgoing_varargs_named (&args_so_far))

gcc/system.h

@@ -594,7 +594,8 @@ typedef char _Bool;
 	ASM_SIMPLIFY_DWARF_ADDR INIT_TARGET_OPTABS INIT_SUBTARGET_OPTABS \
 	INIT_GOFAST_OPTABS MULSI3_LIBCALL MULDI3_LIBCALL DIVSI3_LIBCALL \
 	DIVDI3_LIBCALL UDIVSI3_LIBCALL UDIVDI3_LIBCALL MODSI3_LIBCALL	\
-	MODDI3_LIBCALL UMODSI3_LIBCALL UMODDI3_LIBCALL BUILD_VA_LIST_TYPE
+	MODDI3_LIBCALL UMODSI3_LIBCALL UMODDI3_LIBCALL BUILD_VA_LIST_TYPE \
+	PRETEND_OUTGOING_VARARGS_NAMED
 
 /* Other obsolete target macros, or macros that used to be in target
    headers and were not used, and may be obsolete or may never have

gcc/targhooks.c

@@ -185,15 +185,11 @@ default_strict_argument_naming (CUMULATIVE_ARGS *ca ATTRIBUTE_UNUSED)
 bool
 default_pretend_outgoing_varargs_named(CUMULATIVE_ARGS *ca ATTRIBUTE_UNUSED)
 {
-#ifdef PRETEND_OUTGOING_VARARGS_NAMED
-  return PRETEND_OUTGOING_VARARGS_NAMED;
-#else
 #ifdef SETUP_INCOMING_VARARGS
   return 1;
 #else
   return (targetm.calls.setup_incoming_varargs != default_setup_incoming_varargs);
 #endif
-#endif
 }
 
 /* Generic hook that takes a CUMULATIVE_ARGS pointer and returns true.  */