* target.h (struct asm_out):Add declare_constant_name field.

	* target-def.h (TARGET_ASM_DECLARE_CONSTANT_NAME): Define.
	(TARGET_INITIALIZER): Use TARGET_ASM_DECLARE_CONSTANT_NAME.
	* output.h (default_asm_declare_constant_name): Declare.
	(assemble_label): Update prototype.
	* varasm.c (assemble_constant_contents): Use
	targetm.asm_out.declare_constant_name target hook.
	(assemble_label): Add 'file' argument.
	(default_asm_declare_constant_name): New function.
	* system.h (ASM_DECLARE_CONSTANT_NAME): Poison.
	* doc/tm.texi (ASM_DECLARE_CONSTANT_NAME): Remove.
	(TARGET_ASM_DECLARE_CONSTANT_NAME): Document it.

	* config/darwin-protos.h (darwin_asm_declare_constant_name): Declare.
	* config/darwin.c (darwin_asm_declare_constant_name): New function.
	(machopic_output_indirection): Update assemble_label argument list.
	* config/darwin.h (ASM_DECLARE_CONSTANT_NAME): Remove.
	(TARGET_ASM_DECLARE_CONSTANT_NAME): Define.

From-SVN: r160811

gcc/ChangeLog

+2010-06-15  Anatoly Sokolov  <aesok@post.ru>
+
+	* target.h (struct asm_out):Add declare_constant_name field.
+	* target-def.h (TARGET_ASM_DECLARE_CONSTANT_NAME): Define.
+	(TARGET_INITIALIZER): Use TARGET_ASM_DECLARE_CONSTANT_NAME.
+	* output.h (default_asm_declare_constant_name): Declare.
+	(assemble_label): Update prototype.
+	* varasm.c (assemble_constant_contents): Use
+	targetm.asm_out.declare_constant_name target hook.
+	(assemble_label): Add 'file' argument.
+	(default_asm_declare_constant_name): New function.
+	* system.h (ASM_DECLARE_CONSTANT_NAME): Poison.
+	* doc/tm.texi (ASM_DECLARE_CONSTANT_NAME): Remove.
+	(TARGET_ASM_DECLARE_CONSTANT_NAME): Document it.
+
+	* config/darwin-protos.h (darwin_asm_declare_constant_name): Declare.
+	* config/darwin.c (darwin_asm_declare_constant_name): New function.
+	(machopic_output_indirection): Update assemble_label argument list.
+	* config/darwin.h (ASM_DECLARE_CONSTANT_NAME): Remove.
+	(TARGET_ASM_DECLARE_CONSTANT_NAME): Define.
+
 2010-06-15  Sebastian Pop  <sebastian.pop@amd.com>
 
 	PR middle-end/44391

gcc/config/darwin-protos.h

@@ -87,6 +87,8 @@ extern void darwin_asm_output_dwarf_delta (FILE *, int, const char *,
 					   const char *);
 extern void darwin_asm_output_dwarf_offset (FILE *, int, const char *,
 					    section *);
+extern void darwin_asm_declare_constant_name (FILE *, const char *,
+					      const_tree, HOST_WIDE_INT);
 extern bool darwin_binds_local_p (const_tree);
 extern void darwin_cpp_builtins (struct cpp_reader *);
 extern void darwin_asm_output_anchor (rtx symbol);

gcc/config/darwin.c

@@ -966,7 +966,7 @@ machopic_output_indirection (void **slot, void *data)
     {
       switch_to_section (data_section);
       assemble_align (GET_MODE_ALIGNMENT (Pmode));
-      assemble_label (ptr_name);
+      assemble_label (asm_out_file, ptr_name);
       assemble_integer (gen_rtx_SYMBOL_REF (Pmode, sym_name),
 			GET_MODE_SIZE (Pmode),
 			GET_MODE_ALIGNMENT (Pmode), 1);
@@ -1617,6 +1617,20 @@ darwin_non_lazy_pcrel (FILE *file, rtx addr)
   fputs ("-.", file);
 }
 
+/* The implementation of ASM_DECLARE_CONSTANT_NAME.  */
+
+void
+darwin_asm_declare_constant_name (FILE *file, const char *name,
+				  const_tree exp ATTRIBUTE_UNUSED,
+				  HOST_WIDE_INT size)
+{
+  assemble_label (file, name);
+
+  /* Darwin doesn't support zero-size objects, so give them a byte.  */
+  if ((size) == 0)
+    assemble_zeros (1);
+}
+
 /* Emit an assembler directive to set visibility for a symbol.  The
    only supported visibilities are VISIBILITY_DEFAULT and
    VISIBILITY_HIDDEN; the latter corresponds to Darwin's "private

gcc/config/darwin.h

@@ -652,14 +652,8 @@ extern GTY(()) int darwin_ms_struct;
     ASM_OUTPUT_LABEL (FILE, xname);					\
   } while (0)
 
-#define ASM_DECLARE_CONSTANT_NAME(FILE, NAME, EXP, SIZE)	\
-  do {								\
-    ASM_OUTPUT_LABEL (FILE, NAME);				\
-    /* Darwin doesn't support zero-size objects, so give them a	\
-       byte.  */						\
-    if ((SIZE) == 0)						\
-      assemble_zeros (1);					\
-  } while (0)
+#undef TARGET_ASM_DECLARE_CONSTANT_NAME
+#define TARGET_ASM_DECLARE_CONSTANT_NAME darwin_asm_declare_constant_name
 
 /* Wrap new method names in quotes so the assembler doesn't gag.
    Make Objective-C internal symbols local and in doing this, we need 

gcc/doc/tm.texi

@@ -7787,21 +7787,19 @@ You may wish to use @code{ASM_OUTPUT_TYPE_DIRECTIVE} and/or
 @code{ASM_OUTPUT_SIZE_DIRECTIVE} in the definition of this macro.
 @end defmac
 
-@defmac ASM_DECLARE_CONSTANT_NAME (@var{stream}, @var{name}, @var{exp}, @var{size})
-A C statement (sans semicolon) to output to the stdio stream
-@var{stream} any text necessary for declaring the name @var{name} of a
-constant which is being defined.  This macro is responsible for
-outputting the label definition (perhaps using
-@code{ASM_OUTPUT_LABEL}).  The argument @var{exp} is the
-value of the constant, and @var{size} is the size of the constant
-in bytes.  @var{name} will be an internal label.
+@deftypefn {Target Hook} void TARGET_ASM_DECLARE_CONSTANT_NAME (FILE * @var{file}, const char * @var{name}, const_tree @var{expr}, HOST_WIDE_INT @var{size})
+A target hook to output to the stdio stream @var{file} any text necessary
+for declaring the name @var{name} of a constant which is being defined.  This
+target hook is responsible for outputting the label definition (perhaps using
+@code{assemble_label}).  The argument @var{exp} is the value of the constant,
+and @var{size} is the size of the constant in bytes.  The @var{name}
+will be an internal label.
 
-If this macro is not defined, then the @var{name} is defined in the
-usual manner as a label (by means of @code{ASM_OUTPUT_LABEL}).
+The default version of this target hook, define the @var{name} in the
+usual manner as a label (by means of @code{assemble_label}).
 
-You may wish to use @code{ASM_OUTPUT_TYPE_DIRECTIVE} in the definition
-of this macro.
-@end defmac
+You may wish to use @code{ASM_OUTPUT_TYPE_DIRECTIVE} in this target hook.
+@end deftypefn
 
 @defmac ASM_DECLARE_REGISTER_GLOBAL (@var{stream}, @var{decl}, @var{regno}, @var{name})
 A C statement (sans semicolon) to output to the stdio stream

gcc/output.h

 /* Declarations for insn-output.c.  These functions are defined in recog.c,
    final.c, and varasm.c.
    Copyright (C) 1987, 1991, 1994, 1997, 1998, 1999, 2000, 2001, 2002,
-   2003, 2004, 2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
+   2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
+   Free Software Foundation, Inc.
 
 This file is part of GCC.
 
@@ -230,7 +231,7 @@ extern void assemble_string (const char *, int);
 extern void assemble_external_libcall (rtx);
 
 /* Assemble a label named NAME.  */
-extern void assemble_label (const char *);
+extern void assemble_label (FILE *, const char *);
 
 /* Output to FILE (an assembly file) a reference to NAME.  If NAME
    starts with a *, the rest of NAME is output verbatim.  Otherwise
@@ -630,6 +631,8 @@ extern void default_globalize_decl_name (FILE *, tree);
 extern void default_emit_unwind_label (FILE *, tree, int, int);
 extern void default_emit_except_table_label (FILE *);
 extern void default_internal_label (FILE *, const char *, unsigned long);
+extern void default_asm_declare_constant_name (FILE *, const char *,
+					       const_tree, HOST_WIDE_INT);
 extern void default_file_start (void);
 extern void file_end_indicate_exec_stack (void);
 

gcc/system.h

@@ -768,7 +768,8 @@ extern void fancy_abort (const char *, int, const char *) ATTRIBUTE_NORETURN;
 	SMALL_ARG_MAX ASM_OUTPUT_SHARED_BSS ASM_OUTPUT_SHARED_COMMON	   \
 	ASM_OUTPUT_SHARED_LOCAL ASM_MAKE_LABEL_LINKONCE			   \
 	STACK_CHECK_PROBE_INTERVAL STACK_CHECK_PROBE_LOAD		   \
-	ORDER_REGS_FOR_LOCAL_ALLOC FUNCTION_OUTGOING_VALUE
+	ORDER_REGS_FOR_LOCAL_ALLOC FUNCTION_OUTGOING_VALUE		   \
+	ASM_DECLARE_CONSTANT_NAME
 
 /* Hooks that are no longer used.  */
  #pragma GCC poison LANG_HOOKS_FUNCTION_MARK LANG_HOOKS_FUNCTION_FREE	\

gcc/target-def.h

@@ -84,6 +84,10 @@
 #define TARGET_ASM_INTERNAL_LABEL default_internal_label
 #endif
 
+#ifndef TARGET_ASM_DECLARE_CONSTANT_NAME
+#define TARGET_ASM_DECLARE_CONSTANT_NAME default_asm_declare_constant_name
+#endif
+
 #ifndef TARGET_ASM_TTYPE
 #define TARGET_ASM_TTYPE hook_bool_rtx_false
 #endif
@@ -297,6 +301,7 @@
 			TARGET_ASM_EMIT_EXCEPT_TABLE_LABEL,	\
 			TARGET_UNWIND_EMIT,			\
 			TARGET_ASM_INTERNAL_LABEL,		\
+			TARGET_ASM_DECLARE_CONSTANT_NAME,	\
 			TARGET_ASM_TTYPE,			\
 			TARGET_ASM_ASSEMBLE_VISIBILITY,		\
 			TARGET_ASM_FUNCTION_PROLOGUE,		\

gcc/target.h

@@ -171,6 +171,10 @@ struct gcc_target
     /* Output an internal label.  */
     void (* internal_label) (FILE *, const char *, unsigned long);
 
+    /* Output label for the constant.  */
+    void (* declare_constant_name) (FILE *, const char *, const_tree, 
+				    HOST_WIDE_INT);
+
     /* Emit a ttype table reference to a typeinfo object.  */
     bool (* ttype) (rtx);
 

gcc/varasm.c

@@ -2461,9 +2461,9 @@ assemble_external_libcall (rtx fun)
 /* Assemble a label named NAME.  */
 
 void
-assemble_label (const char *name)
+assemble_label (FILE *file, const char *name)
 {
-  ASM_OUTPUT_LABEL (asm_out_file, name);
+  ASM_OUTPUT_LABEL (file, name);
 }
 
 /* Set the symbol_referenced flag for ID.  */
@@ -3475,12 +3475,7 @@ assemble_constant_contents (tree exp, const char *label, unsigned int align)
   size = get_constant_size (exp);
 
   /* Do any machine/system dependent processing of the constant.  */
-#ifdef ASM_DECLARE_CONSTANT_NAME
-  ASM_DECLARE_CONSTANT_NAME (asm_out_file, label, exp, size);
-#else
-  /* Standard thing is just output label for the constant.  */
-  ASM_OUTPUT_LABEL (asm_out_file, label);
-#endif /* ASM_DECLARE_CONSTANT_NAME */
+  targetm.asm_out.declare_constant_name (asm_out_file, label, exp, size);
 
   /* Output the value of EXP.  */
   output_constant (exp, size, align);
@@ -6894,6 +6889,17 @@ default_internal_label (FILE *stream, const char *prefix,
   ASM_OUTPUT_INTERNAL_LABEL (stream, buf);
 }
 
+
+/* The default implementation of ASM_DECLARE_CONSTANT_NAME.  */
+
+void
+default_asm_declare_constant_name (FILE *file, const char *name,
+				   const_tree exp ATTRIBUTE_UNUSED,
+				   HOST_WIDE_INT size ATTRIBUTE_UNUSED)
+{
+  assemble_label (file, name);
+}
+
 /* This is the default behavior at the beginning of a file.  It's
    controlled by two other target-hook toggles.  */
 void