bfin.h (enum bfin_builtins): New.

	* config/bfin/bfin.h (enum bfin_builtins): New.
	* config/bfin/bfin.md (UNSPEC_VOLATILE_CSYNC, UNSPEC_VOLATILE_SSYNC):
	New constants.
	(csync, ssync): New insn patterns.
	* config/bfin/bfin.c (bfin_init_builtins, bfin_expand_builtin):
	New functions.
	(def_builtin): New macro.
	(TARGET_INIT_BUILTINS, TARGET_EXPAND_BUILTIN): Define.

From-SVN: r100752

gcc/ChangeLog

@@ -3,6 +3,15 @@
 	* config/bfin/bfin.c (bfin_return_in_memory): Simplify; return
 	everything larger than 8 bytes in memory.
 
+	* config/bfin/bfin.h (enum bfin_builtins): New.
+	* config/bfin/bfin.md (UNSPEC_VOLATILE_CSYNC, UNSPEC_VOLATILE_SSYNC):
+	New constants.
+	(csync, ssync): New insn patterns.
+	* config/bfin/bfin.c (bfin_init_builtins, bfin_expand_builtin):
+	New functions.
+	(def_builtin): New macro.
+	(TARGET_INIT_BUILTINS, TARGET_EXPAND_BUILTIN): Define.
+
 2005-06-08  Sebastian Pop  <pop@cri.ensmp.fr>
 
 	* tree-data-ref.c (compute_estimated_nb_iterations,

gcc/config/bfin/bfin.c

@@ -2671,6 +2671,59 @@ bfin_output_mi_thunk (FILE *file ATTRIBUTE_UNUSED,
     output_asm_insn ("jump.l\t%P0", xops);
 }
 
+#define def_builtin(NAME, TYPE, CODE)				\
+do {								\
+  builtin_function ((NAME), (TYPE), (CODE), BUILT_IN_MD,	\
+		    NULL, NULL_TREE);				\
+} while (0)
+
+/* Set up all builtin functions for this target.  */
+static void
+bfin_init_builtins (void)
+{
+  tree void_ftype_void
+    = build_function_type (void_type_node, void_list_node);
+
+  /* Add the remaining MMX insns with somewhat more complicated types.  */
+  def_builtin ("__builtin_bfin_csync", void_ftype_void, BFIN_BUILTIN_CSYNC);
+  def_builtin ("__builtin_bfin_ssync", void_ftype_void, BFIN_BUILTIN_SSYNC);
+}
+
+/* Expand an expression EXP that calls a built-in function,
+   with result going to TARGET if that's convenient
+   (and in mode MODE if that's convenient).
+   SUBTARGET may be used as the target for computing one of EXP's operands.
+   IGNORE is nonzero if the value is to be ignored.  */
+
+static rtx
+bfin_expand_builtin (tree exp, rtx target ATTRIBUTE_UNUSED,
+		     rtx subtarget ATTRIBUTE_UNUSED,
+		     enum machine_mode mode ATTRIBUTE_UNUSED,
+		     int ignore ATTRIBUTE_UNUSED)
+{
+  tree fndecl = TREE_OPERAND (TREE_OPERAND (exp, 0), 0);
+  unsigned int fcode = DECL_FUNCTION_CODE (fndecl);
+
+  switch (fcode)
+    {
+    case BFIN_BUILTIN_CSYNC:
+      emit_insn (gen_csync ());
+      return 0;
+    case BFIN_BUILTIN_SSYNC:
+      emit_insn (gen_ssync ());
+      return 0;
+
+    default:
+      gcc_unreachable ();
+    }
+}
+
+#undef TARGET_INIT_BUILTINS
+#define TARGET_INIT_BUILTINS bfin_init_builtins
+
+#undef TARGET_EXPAND_BUILTIN
+#define TARGET_EXPAND_BUILTIN bfin_expand_builtin
+
 #undef TARGET_ASM_GLOBALIZE_LABEL
 #define TARGET_ASM_GLOBALIZE_LABEL bfin_globalize_label 
 

gcc/config/bfin/bfin.h

@@ -989,6 +989,14 @@ do {                                              \
 #define EXTRA_CONSTRAINT(VALUE, D) \
     ((D) == 'Q' ? GET_CODE (VALUE) == SYMBOL_REF : 0)
 
+/* Codes for all the Blackfin builtins.  */
+enum bfin_builtins
+{
+  BFIN_BUILTIN_CSYNC,
+  BFIN_BUILTIN_SSYNC,
+  BFIN_BUILTIN_MAX
+};
+
 /* `FINALIZE_PIC'
      By generating position-independent code, when two different
      programs (A and B) share a common library (libC.a), the text of

gcc/config/bfin/bfin.md

@@ -120,7 +120,9 @@
    (UNSPEC_PUSH_MULTIPLE 5)])
 
 (define_constants
-  [(UNSPEC_VOLATILE_EH_RETURN 0)])
+  [(UNSPEC_VOLATILE_EH_RETURN 0)
+   (UNSPEC_VOLATILE_CSYNC 1)
+   (UNSPEC_VOLATILE_SSYNC 2)])
 
 (define_attr "type"
   "move,mvi,mcld,mcst,dsp32,mult,alu0,shft,brcc,br,call,misc,compare,dummy"
@@ -1838,6 +1840,18 @@
   gcc_unreachable ();
 })
 
+(define_insn "csync"
+  [(unspec_volatile [(const_int 0)] UNSPEC_VOLATILE_CSYNC)]
+  ""
+  "csync;"
+  [(set_attr "type" "misc")])
+
+(define_insn "ssync"
+  [(unspec_volatile [(const_int 0)] UNSPEC_VOLATILE_SSYNC)]
+  ""
+  "ssync;"
+  [(set_attr "type" "misc")])
+
 ;;; Vector instructions
 
 (define_insn "addv2hi"