bfin.c: Include "optabs.h".

	* config/bfin/bfin.c: Include "optabs.h".
	(bfin_rtx_costs): Some costs for vector operations, to allow combine
	to do more work.
	(enum bfin_builtins): Add a number of fractional and vector builtins.
	(bfin_init_builtins): Likewise.
	(struct builtin_description, bdesc_2arg, bdesc_1arg): New.
	(safe_vector_operand, bfin_expand_binop_builtin,
	bfin_expand_unop_builtin): New functions.
	(bfin_expand_builtin): Handle the new builtins.
	* config/bfin/bfin.h (TARGET_CPU_CPP_BUILTINS): Define
	__ADSPBLACKFIN__.

From-SVN: r113521

gcc/ChangeLog

@@ -4,6 +4,18 @@
 	that this only matches CONST_INTs.  All users changed to VOIDmode
 	operands.
 
+	* config/bfin/bfin.c: Include "optabs.h".
+	(bfin_rtx_costs): Some costs for vector operations, to allow combine
+	to do more work.
+	(enum bfin_builtins): Add a number of fractional and vector builtins.
+	(bfin_init_builtins): Likewise.
+	(struct builtin_description, bdesc_2arg, bdesc_1arg): New.
+	(safe_vector_operand, bfin_expand_binop_builtin,
+	bfin_expand_unop_builtin): New functions.
+	(bfin_expand_builtin): Handle the new builtins.
+	* config/bfin/bfin.h (TARGET_CPU_CPP_BUILTINS): Define
+	__ADSPBLACKFIN__.
+
 2006-05-04  Leehod Baruch  <leehod@il.ibm.com>
 
         * see.c: New file.

gcc/config/bfin/bfin.c

@@ -43,6 +43,7 @@
 #include "expr.h"
 #include "toplev.h"
 #include "recog.h"
+#include "optabs.h"
 #include "ggc.h"
 #include "integrate.h"
 #include "cgraph.h"
@@ -2283,6 +2284,12 @@ bfin_rtx_costs (rtx x, int code, int outer_code, int *total)
 	*total = COSTS_N_INSNS (3);
       return false;
 
+    case VEC_CONCAT:
+    case VEC_SELECT:
+      if (outer_code == SET)
+	*total = cost2;
+      return true;
+
     default:
       return false;
     }
@@ -2963,6 +2970,56 @@ enum bfin_builtins
 {
   BFIN_BUILTIN_CSYNC,
   BFIN_BUILTIN_SSYNC,
+  BFIN_BUILTIN_COMPOSE_2X16,
+  BFIN_BUILTIN_EXTRACTLO,
+  BFIN_BUILTIN_EXTRACTHI,
+
+  BFIN_BUILTIN_SSADD_2X16,
+  BFIN_BUILTIN_SSSUB_2X16,
+  BFIN_BUILTIN_SSADDSUB_2X16,
+  BFIN_BUILTIN_SSSUBADD_2X16,
+  BFIN_BUILTIN_MULT_2X16,
+  BFIN_BUILTIN_MULTR_2X16,
+  BFIN_BUILTIN_NEG_2X16,
+  BFIN_BUILTIN_ABS_2X16,
+  BFIN_BUILTIN_MIN_2X16,
+  BFIN_BUILTIN_MAX_2X16,
+
+  BFIN_BUILTIN_SSADD_1X16,
+  BFIN_BUILTIN_SSSUB_1X16,
+  BFIN_BUILTIN_MULT_1X16,
+  BFIN_BUILTIN_MULTR_1X16,
+  BFIN_BUILTIN_NORM_1X16,
+  BFIN_BUILTIN_NEG_1X16,
+  BFIN_BUILTIN_ABS_1X16,
+  BFIN_BUILTIN_MIN_1X16,
+  BFIN_BUILTIN_MAX_1X16,
+
+  BFIN_BUILTIN_DIFFHL_2X16,
+  BFIN_BUILTIN_DIFFLH_2X16,
+
+  BFIN_BUILTIN_SSADD_1X32,
+  BFIN_BUILTIN_SSSUB_1X32,
+  BFIN_BUILTIN_NORM_1X32,
+  BFIN_BUILTIN_NEG_1X32,
+  BFIN_BUILTIN_MIN_1X32,
+  BFIN_BUILTIN_MAX_1X32,
+  BFIN_BUILTIN_MULT_1X32,
+
+  BFIN_BUILTIN_MULHISILL,
+  BFIN_BUILTIN_MULHISILH,
+  BFIN_BUILTIN_MULHISIHL,
+  BFIN_BUILTIN_MULHISIHH,
+
+  BFIN_BUILTIN_LSHIFT_1X16,
+  BFIN_BUILTIN_LSHIFT_2X16,
+  BFIN_BUILTIN_SSASHIFT_1X16,
+  BFIN_BUILTIN_SSASHIFT_2X16,
+
+  BFIN_BUILTIN_CPLX_MUL_16,
+  BFIN_BUILTIN_CPLX_MAC_16,
+  BFIN_BUILTIN_CPLX_MSU_16,
+
   BFIN_BUILTIN_MAX
 };
 
@@ -2976,12 +3033,306 @@ do {									\
 static void
 bfin_init_builtins (void)
 {
+  tree V2HI_type_node = build_vector_type_for_mode (intHI_type_node, V2HImode);
   tree void_ftype_void
     = build_function_type (void_type_node, void_list_node);
+  tree short_ftype_short
+    = build_function_type_list (short_integer_type_node, short_integer_type_node,
+				NULL_TREE);
+  tree short_ftype_int_int
+    = build_function_type_list (short_integer_type_node, integer_type_node,
+				integer_type_node, NULL_TREE);
+  tree int_ftype_int_int
+    = build_function_type_list (integer_type_node, integer_type_node,
+				integer_type_node, NULL_TREE);
+  tree int_ftype_int
+    = build_function_type_list (integer_type_node, integer_type_node,
+				NULL_TREE);
+  tree short_ftype_int
+    = build_function_type_list (short_integer_type_node, integer_type_node,
+				NULL_TREE);
+  tree int_ftype_v2hi_v2hi
+    = build_function_type_list (integer_type_node, V2HI_type_node,
+				V2HI_type_node, NULL_TREE);
+  tree v2hi_ftype_v2hi_v2hi
+    = build_function_type_list (V2HI_type_node, V2HI_type_node,
+				V2HI_type_node, NULL_TREE);
+  tree v2hi_ftype_v2hi_v2hi_v2hi
+    = build_function_type_list (V2HI_type_node, V2HI_type_node,
+				V2HI_type_node, V2HI_type_node, NULL_TREE);
+  tree v2hi_ftype_int_int
+    = build_function_type_list (V2HI_type_node, integer_type_node,
+				integer_type_node, NULL_TREE);
+  tree v2hi_ftype_v2hi_int
+    = build_function_type_list (V2HI_type_node, V2HI_type_node,
+				integer_type_node, NULL_TREE);
+  tree int_ftype_short_short
+    = build_function_type_list (integer_type_node, short_integer_type_node,
+				short_integer_type_node, NULL_TREE);
+  tree v2hi_ftype_v2hi
+    = build_function_type_list (V2HI_type_node, V2HI_type_node, NULL_TREE);
+  tree short_ftype_v2hi
+    = build_function_type_list (short_integer_type_node, V2HI_type_node,
+				NULL_TREE);
 
   /* 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);
+
+  def_builtin ("__builtin_bfin_compose_2x16", v2hi_ftype_int_int,
+	       BFIN_BUILTIN_COMPOSE_2X16);
+  def_builtin ("__builtin_bfin_extract_hi", short_ftype_v2hi,
+	       BFIN_BUILTIN_EXTRACTHI);
+  def_builtin ("__builtin_bfin_extract_lo", short_ftype_v2hi,
+	       BFIN_BUILTIN_EXTRACTLO);
+
+  def_builtin ("__builtin_bfin_min_fr2x16", v2hi_ftype_v2hi_v2hi,
+	       BFIN_BUILTIN_MIN_2X16);
+  def_builtin ("__builtin_bfin_max_fr2x16", v2hi_ftype_v2hi_v2hi,
+	       BFIN_BUILTIN_MAX_2X16);
+
+  def_builtin ("__builtin_bfin_add_fr2x16", v2hi_ftype_v2hi_v2hi,
+	       BFIN_BUILTIN_SSADD_2X16);
+  def_builtin ("__builtin_bfin_sub_fr2x16", v2hi_ftype_v2hi_v2hi,
+	       BFIN_BUILTIN_SSSUB_2X16);
+  def_builtin ("__builtin_bfin_dspaddsubsat", v2hi_ftype_v2hi_v2hi,
+	       BFIN_BUILTIN_SSADDSUB_2X16);
+  def_builtin ("__builtin_bfin_dspsubaddsat", v2hi_ftype_v2hi_v2hi,
+	       BFIN_BUILTIN_SSSUBADD_2X16);
+  def_builtin ("__builtin_bfin_mult_fr2x16", v2hi_ftype_v2hi_v2hi,
+	       BFIN_BUILTIN_MULT_2X16);
+  def_builtin ("__builtin_bfin_multr_fr2x16", v2hi_ftype_v2hi_v2hi,
+	       BFIN_BUILTIN_MULTR_2X16);
+  def_builtin ("__builtin_bfin_negate_fr2x16", v2hi_ftype_v2hi,
+	       BFIN_BUILTIN_NEG_2X16);
+  def_builtin ("__builtin_bfin_abs_fr2x16", v2hi_ftype_v2hi,
+	       BFIN_BUILTIN_ABS_2X16);
+
+  def_builtin ("__builtin_bfin_add_fr1x16", short_ftype_int_int,
+	       BFIN_BUILTIN_SSADD_1X16);
+  def_builtin ("__builtin_bfin_sub_fr1x16", short_ftype_int_int,
+	       BFIN_BUILTIN_SSSUB_1X16);
+  def_builtin ("__builtin_bfin_mult_fr1x16", short_ftype_int_int,
+	       BFIN_BUILTIN_MULT_1X16);
+  def_builtin ("__builtin_bfin_multr_fr1x16", short_ftype_int_int,
+	       BFIN_BUILTIN_MULTR_1X16);
+  def_builtin ("__builtin_bfin_negate_fr1x16", short_ftype_short,
+	       BFIN_BUILTIN_NEG_1X16);
+  def_builtin ("__builtin_bfin_abs_fr1x16", short_ftype_short,
+	       BFIN_BUILTIN_ABS_1X16);
+  def_builtin ("__builtin_bfin_norm_fr1x16", short_ftype_int,
+	       BFIN_BUILTIN_NORM_1X16);
+
+  def_builtin ("__builtin_bfin_diff_hl_fr2x16", short_ftype_v2hi,
+	       BFIN_BUILTIN_DIFFHL_2X16);
+  def_builtin ("__builtin_bfin_diff_lh_fr2x16", short_ftype_v2hi,
+	       BFIN_BUILTIN_DIFFLH_2X16);
+
+  def_builtin ("__builtin_bfin_mulhisill", int_ftype_v2hi_v2hi,
+	       BFIN_BUILTIN_MULHISILL);
+  def_builtin ("__builtin_bfin_mulhisihl", int_ftype_v2hi_v2hi,
+	       BFIN_BUILTIN_MULHISIHL);
+  def_builtin ("__builtin_bfin_mulhisilh", int_ftype_v2hi_v2hi,
+	       BFIN_BUILTIN_MULHISILH);
+  def_builtin ("__builtin_bfin_mulhisihh", int_ftype_v2hi_v2hi,
+	       BFIN_BUILTIN_MULHISIHH);
+
+  def_builtin ("__builtin_bfin_add_fr1x32", int_ftype_int_int,
+	       BFIN_BUILTIN_SSADD_1X32);
+  def_builtin ("__builtin_bfin_sub_fr1x32", int_ftype_int_int,
+	       BFIN_BUILTIN_SSSUB_1X32);
+  def_builtin ("__builtin_bfin_negate_fr1x32", int_ftype_int,
+	       BFIN_BUILTIN_NEG_1X32);
+  def_builtin ("__builtin_bfin_norm_fr1x32", short_ftype_int,
+	       BFIN_BUILTIN_NORM_1X32);
+  def_builtin ("__builtin_bfin_mult_fr1x32", int_ftype_short_short,
+	       BFIN_BUILTIN_MULT_1X32);
+
+  /* Shifts.  */
+  def_builtin ("__builtin_bfin_shl_fr1x16", short_ftype_int_int,
+	       BFIN_BUILTIN_SSASHIFT_1X16);
+  def_builtin ("__builtin_bfin_shl_fr2x16", v2hi_ftype_v2hi_int,
+	       BFIN_BUILTIN_SSASHIFT_2X16);
+  def_builtin ("__builtin_bfin_lshl_fr1x16", short_ftype_int_int,
+	       BFIN_BUILTIN_LSHIFT_1X16);
+  def_builtin ("__builtin_bfin_lshl_fr2x16", v2hi_ftype_v2hi_int,
+	       BFIN_BUILTIN_LSHIFT_2X16);
+
+  /* Complex numbers.  */
+  def_builtin ("__builtin_bfin_cmplx_mul", v2hi_ftype_v2hi_v2hi,
+	       BFIN_BUILTIN_CPLX_MUL_16);
+  def_builtin ("__builtin_bfin_cmplx_mac", v2hi_ftype_v2hi_v2hi_v2hi,
+	       BFIN_BUILTIN_CPLX_MAC_16);
+  def_builtin ("__builtin_bfin_cmplx_msu", v2hi_ftype_v2hi_v2hi_v2hi,
+	       BFIN_BUILTIN_CPLX_MSU_16);
+}
+
+
+struct builtin_description
+{
+  const enum insn_code icode;
+  const char *const name;
+  const enum bfin_builtins code;
+  int macflag;
+};
+
+static const struct builtin_description bdesc_2arg[] =
+{
+  { CODE_FOR_composev2hi, "__builtin_bfin_compose_2x16", BFIN_BUILTIN_COMPOSE_2X16, -1 },
+
+  { CODE_FOR_ssashiftv2hi3, "__builtin_bfin_shl_fr2x16", BFIN_BUILTIN_SSASHIFT_2X16, -1 },
+  { CODE_FOR_ssashifthi3, "__builtin_bfin_shl_fr1x16", BFIN_BUILTIN_SSASHIFT_1X16, -1 },
+  { CODE_FOR_lshiftv2hi3, "__builtin_bfin_lshl_fr2x16", BFIN_BUILTIN_LSHIFT_2X16, -1 },
+  { CODE_FOR_lshifthi3, "__builtin_bfin_lshl_fr1x16", BFIN_BUILTIN_LSHIFT_1X16, -1 },
+
+  { CODE_FOR_sminhi3, "__builtin_bfin_min_fr1x16", BFIN_BUILTIN_MIN_1X16, -1 },
+  { CODE_FOR_smaxhi3, "__builtin_bfin_max_fr1x16", BFIN_BUILTIN_MAX_1X16, -1 },
+  { CODE_FOR_ssaddhi3, "__builtin_bfin_add_fr1x16", BFIN_BUILTIN_SSADD_1X16, -1 },
+  { CODE_FOR_sssubhi3, "__builtin_bfin_sub_fr1x16", BFIN_BUILTIN_SSSUB_1X16, -1 },
+
+  { CODE_FOR_sminsi3, "__builtin_bfin_min_fr1x32", BFIN_BUILTIN_MIN_1X32, -1 },
+  { CODE_FOR_smaxsi3, "__builtin_bfin_max_fr1x32", BFIN_BUILTIN_MAX_1X32, -1 },
+  { CODE_FOR_ssaddsi3, "__builtin_bfin_add_fr1x32", BFIN_BUILTIN_SSADD_1X32, -1 },
+  { CODE_FOR_sssubsi3, "__builtin_bfin_sub_fr1x32", BFIN_BUILTIN_SSSUB_1X32, -1 },
+
+  { CODE_FOR_sminv2hi3, "__builtin_bfin_min_fr2x16", BFIN_BUILTIN_MIN_2X16, -1 },
+  { CODE_FOR_smaxv2hi3, "__builtin_bfin_max_fr2x16", BFIN_BUILTIN_MAX_2X16, -1 },
+  { CODE_FOR_ssaddv2hi3, "__builtin_bfin_add_fr2x16", BFIN_BUILTIN_SSADD_2X16, -1 },
+  { CODE_FOR_sssubv2hi3, "__builtin_bfin_sub_fr2x16", BFIN_BUILTIN_SSSUB_2X16, -1 },
+  { CODE_FOR_ssaddsubv2hi3, "__builtin_bfin_dspaddsubsat", BFIN_BUILTIN_SSADDSUB_2X16, -1 },
+  { CODE_FOR_sssubaddv2hi3, "__builtin_bfin_dspsubaddsat", BFIN_BUILTIN_SSSUBADD_2X16, -1 },
+
+  { CODE_FOR_flag_mulhisi, "__builtin_bfin_mult_fr1x32", BFIN_BUILTIN_MULT_1X32, MACFLAG_NONE },
+  { CODE_FOR_flag_mulhi, "__builtin_bfin_mult_fr1x16", BFIN_BUILTIN_MULT_1X16, MACFLAG_T },
+  { CODE_FOR_flag_mulhi, "__builtin_bfin_multr_fr1x16", BFIN_BUILTIN_MULTR_1X16, MACFLAG_NONE },
+  { CODE_FOR_flag_mulv2hi, "__builtin_bfin_mult_fr2x16", BFIN_BUILTIN_MULT_2X16, MACFLAG_T },
+  { CODE_FOR_flag_mulv2hi, "__builtin_bfin_multr_fr2x16", BFIN_BUILTIN_MULTR_2X16, MACFLAG_NONE }
+};
+
+static const struct builtin_description bdesc_1arg[] =
+{
+  { CODE_FOR_signbitshi2, "__builtin_bfin_norm_fr1x16", BFIN_BUILTIN_NORM_1X16, 0 },
+  { CODE_FOR_ssneghi2, "__builtin_bfin_negate_fr1x16", BFIN_BUILTIN_NEG_1X16, 0 },
+  { CODE_FOR_abshi2, "__builtin_bfin_abs_fr1x16", BFIN_BUILTIN_ABS_1X16, 0 },
+
+  { CODE_FOR_signbitssi2, "__builtin_bfin_norm_fr1x32", BFIN_BUILTIN_NORM_1X32, 0 },
+  { CODE_FOR_ssnegsi2, "__builtin_bfin_negate_fr1x32", BFIN_BUILTIN_NEG_1X32, 0 },
+
+  { CODE_FOR_movv2hi_hi_low, "__builtin_bfin_extract_lo", BFIN_BUILTIN_EXTRACTLO, 0 },
+  { CODE_FOR_movv2hi_hi_high, "__builtin_bfin_extract_hi", BFIN_BUILTIN_EXTRACTHI, 0 },
+  { CODE_FOR_ssnegv2hi2, "__builtin_bfin_negate_fr2x16", BFIN_BUILTIN_NEG_2X16, 0 },
+  { CODE_FOR_absv2hi2, "__builtin_bfin_abs_fr2x16", BFIN_BUILTIN_ABS_2X16, 0 }
+};
+
+/* Errors in the source file can cause expand_expr to return const0_rtx
+   where we expect a vector.  To avoid crashing, use one of the vector
+   clear instructions.  */
+static rtx
+safe_vector_operand (rtx x, enum machine_mode mode)
+{
+  if (x != const0_rtx)
+    return x;
+  x = gen_reg_rtx (SImode);
+
+  emit_insn (gen_movsi (x, CONST0_RTX (SImode)));
+  return gen_lowpart (mode, x);
+}
+
+/* Subroutine of bfin_expand_builtin to take care of binop insns.  MACFLAG is -1
+   if this is a normal binary op, or one of the MACFLAG_xxx constants.  */
+
+static rtx
+bfin_expand_binop_builtin (enum insn_code icode, tree arglist, rtx target,
+			   int macflag)
+{
+  rtx pat;
+  tree arg0 = TREE_VALUE (arglist);
+  tree arg1 = TREE_VALUE (TREE_CHAIN (arglist));
+  rtx op0 = expand_expr (arg0, NULL_RTX, VOIDmode, 0);
+  rtx op1 = expand_expr (arg1, NULL_RTX, VOIDmode, 0);
+  enum machine_mode op0mode = GET_MODE (op0);
+  enum machine_mode op1mode = GET_MODE (op1);
+  enum machine_mode tmode = insn_data[icode].operand[0].mode;
+  enum machine_mode mode0 = insn_data[icode].operand[1].mode;
+  enum machine_mode mode1 = insn_data[icode].operand[2].mode;
+
+  if (VECTOR_MODE_P (mode0))
+    op0 = safe_vector_operand (op0, mode0);
+  if (VECTOR_MODE_P (mode1))
+    op1 = safe_vector_operand (op1, mode1);
+
+  if (! target
+      || GET_MODE (target) != tmode
+      || ! (*insn_data[icode].operand[0].predicate) (target, tmode))
+    target = gen_reg_rtx (tmode);
+
+  if ((op0mode == SImode || op0mode == VOIDmode) && mode0 == HImode)
+    {
+      op0mode = HImode;
+      op0 = gen_lowpart (HImode, op0);
+    }
+  if ((op1mode == SImode || op1mode == VOIDmode) && mode1 == HImode)
+    {
+      op1mode = HImode;
+      op1 = gen_lowpart (HImode, op1);
+    }
+  /* In case the insn wants input operands in modes different from
+     the result, abort.  */
+  gcc_assert ((op0mode == mode0 || op0mode == VOIDmode)
+	      && (op1mode == mode1 || op1mode == VOIDmode));
+
+  if (! (*insn_data[icode].operand[1].predicate) (op0, mode0))
+    op0 = copy_to_mode_reg (mode0, op0);
+  if (! (*insn_data[icode].operand[2].predicate) (op1, mode1))
+    op1 = copy_to_mode_reg (mode1, op1);
+
+  if (macflag == -1)
+    pat = GEN_FCN (icode) (target, op0, op1);
+  else
+    pat = GEN_FCN (icode) (target, op0, op1, GEN_INT (macflag));
+  if (! pat)
+    return 0;
+
+  emit_insn (pat);
+  return target;
+}
+
+/* Subroutine of bfin_expand_builtin to take care of unop insns.  */
+
+static rtx
+bfin_expand_unop_builtin (enum insn_code icode, tree arglist,
+			  rtx target)
+{
+  rtx pat;
+  tree arg0 = TREE_VALUE (arglist);
+  rtx op0 = expand_expr (arg0, NULL_RTX, VOIDmode, 0);
+  enum machine_mode op0mode = GET_MODE (op0);
+  enum machine_mode tmode = insn_data[icode].operand[0].mode;
+  enum machine_mode mode0 = insn_data[icode].operand[1].mode;
+
+  if (! target
+      || GET_MODE (target) != tmode
+      || ! (*insn_data[icode].operand[0].predicate) (target, tmode))
+    target = gen_reg_rtx (tmode);
+
+  if (VECTOR_MODE_P (mode0))
+    op0 = safe_vector_operand (op0, mode0);
+
+  if (op0mode == SImode && mode0 == HImode)
+    {
+      op0mode = HImode;
+      op0 = gen_lowpart (HImode, op0);
+    }
+  gcc_assert (op0mode == mode0 || op0mode == VOIDmode);
+
+  if (! (*insn_data[icode].operand[1].predicate) (op0, mode0))
+    op0 = copy_to_mode_reg (mode0, op0);
+
+  pat = GEN_FCN (icode) (target, op0);
+  if (! pat)
+    return 0;
+  emit_insn (pat);
+  return target;
 }
 
 /* Expand an expression EXP that calls a built-in function,
@@ -2996,8 +3347,15 @@ bfin_expand_builtin (tree exp, rtx target ATTRIBUTE_UNUSED,
 		     enum machine_mode mode ATTRIBUTE_UNUSED,
 		     int ignore ATTRIBUTE_UNUSED)
 {
+  size_t i;
+  enum insn_code icode;
+  const struct builtin_description *d;
   tree fndecl = TREE_OPERAND (TREE_OPERAND (exp, 0), 0);
+  tree arglist = TREE_OPERAND (exp, 1);
   unsigned int fcode = DECL_FUNCTION_CODE (fndecl);
+  tree arg0, arg1, arg2;
+  rtx op0, op1, op2, accvec, pat, tmp1, tmp2;
+  enum machine_mode tmode, mode0;
 
   switch (fcode)
     {
@@ -3008,9 +3366,111 @@ bfin_expand_builtin (tree exp, rtx target ATTRIBUTE_UNUSED,
       emit_insn (gen_ssync ());
       return 0;
 
+    case BFIN_BUILTIN_DIFFHL_2X16:
+    case BFIN_BUILTIN_DIFFLH_2X16:
+      arg0 = TREE_VALUE (arglist);
+      op0 = expand_expr (arg0, NULL_RTX, VOIDmode, 0);
+      icode = (fcode == BFIN_BUILTIN_DIFFHL_2X16
+	       ? CODE_FOR_subhilov2hi3 : CODE_FOR_sublohiv2hi3);
+      tmode = insn_data[icode].operand[0].mode;
+      mode0 = insn_data[icode].operand[1].mode;
+
+      if (! target
+	  || GET_MODE (target) != tmode
+	  || ! (*insn_data[icode].operand[0].predicate) (target, tmode))
+	target = gen_reg_rtx (tmode);
+
+      if (VECTOR_MODE_P (mode0))
+	op0 = safe_vector_operand (op0, mode0);
+
+      if (! (*insn_data[icode].operand[1].predicate) (op0, mode0))
+	op0 = copy_to_mode_reg (mode0, op0);
+
+      pat = GEN_FCN (icode) (target, op0, op0);
+      if (! pat)
+	return 0;
+      emit_insn (pat);
+      return target;
+
+    case BFIN_BUILTIN_CPLX_MUL_16:
+      arg0 = TREE_VALUE (arglist);
+      arg1 = TREE_VALUE (TREE_CHAIN (arglist));
+      op0 = expand_expr (arg0, NULL_RTX, VOIDmode, 0);
+      op1 = expand_expr (arg1, NULL_RTX, VOIDmode, 0);
+      accvec = gen_reg_rtx (V2PDImode);
+
+      if (! target
+	  || GET_MODE (target) != V2HImode
+	  || ! (*insn_data[icode].operand[0].predicate) (target, V2HImode))
+	target = gen_reg_rtx (tmode);
+      if (! register_operand (op0, GET_MODE (op0)))
+	op0 = copy_to_mode_reg (GET_MODE (op0), op0);
+      if (! register_operand (op1, GET_MODE (op1)))
+	op1 = copy_to_mode_reg (GET_MODE (op1), op1);
+
+      emit_insn (gen_flag_macinit1v2hi_parts (accvec, op0, op1, const0_rtx,
+					      const0_rtx, const0_rtx,
+					      const1_rtx, GEN_INT (MACFLAG_NONE)));
+      emit_insn (gen_flag_macv2hi_parts (target, op0, op1, const1_rtx,
+					 const1_rtx, const1_rtx,
+					 const0_rtx, accvec, const1_rtx, const0_rtx,
+					 GEN_INT (MACFLAG_NONE), accvec));
+
+      return target;
+
+    case BFIN_BUILTIN_CPLX_MAC_16:
+    case BFIN_BUILTIN_CPLX_MSU_16:
+      arg0 = TREE_VALUE (arglist);
+      arg1 = TREE_VALUE (TREE_CHAIN (arglist));
+      arg2 = TREE_VALUE (TREE_CHAIN (TREE_CHAIN (arglist)));
+      op0 = expand_expr (arg0, NULL_RTX, VOIDmode, 0);
+      op1 = expand_expr (arg1, NULL_RTX, VOIDmode, 0);
+      op2 = expand_expr (arg2, NULL_RTX, VOIDmode, 0);
+      accvec = gen_reg_rtx (V2PDImode);
+
+      if (! target
+	  || GET_MODE (target) != V2HImode
+	  || ! (*insn_data[icode].operand[0].predicate) (target, V2HImode))
+	target = gen_reg_rtx (tmode);
+      if (! register_operand (op0, GET_MODE (op0)))
+	op0 = copy_to_mode_reg (GET_MODE (op0), op0);
+      if (! register_operand (op1, GET_MODE (op1)))
+	op1 = copy_to_mode_reg (GET_MODE (op1), op1);
+
+      tmp1 = gen_reg_rtx (SImode);
+      tmp2 = gen_reg_rtx (SImode);
+      emit_insn (gen_ashlsi3 (tmp1, gen_lowpart (SImode, op2), GEN_INT (16)));
+      emit_move_insn (tmp2, gen_lowpart (SImode, op2));
+      emit_insn (gen_movstricthi_1 (gen_lowpart (HImode, tmp2), const0_rtx));
+      emit_insn (gen_load_accumulator_pair (accvec, tmp1, tmp2));
+      emit_insn (gen_flag_macv2hi_parts_acconly (accvec, op0, op1, const0_rtx,
+						 const0_rtx, const0_rtx,
+						 const1_rtx, accvec, const0_rtx,
+						 const0_rtx,
+						 GEN_INT (MACFLAG_W32)));
+      tmp1 = (fcode == BFIN_BUILTIN_CPLX_MAC_16 ? const1_rtx : const0_rtx);
+      tmp2 = (fcode == BFIN_BUILTIN_CPLX_MAC_16 ? const0_rtx : const1_rtx);
+      emit_insn (gen_flag_macv2hi_parts (target, op0, op1, const1_rtx,
+					 const1_rtx, const1_rtx,
+					 const0_rtx, accvec, tmp1, tmp2,
+					 GEN_INT (MACFLAG_NONE), accvec));
+
+      return target;
+
     default:
-      gcc_unreachable ();
+      break;
     }
+
+  for (i = 0, d = bdesc_2arg; i < ARRAY_SIZE (bdesc_2arg); i++, d++)
+    if (d->code == fcode)
+      return bfin_expand_binop_builtin (d->icode, arglist, target,
+					d->macflag);
+
+  for (i = 0, d = bdesc_1arg; i < ARRAY_SIZE (bdesc_1arg); i++, d++)
+    if (d->code == fcode)
+      return bfin_expand_unop_builtin (d->icode, arglist, target);
+
+  gcc_unreachable ();
 }
 
 #undef TARGET_INIT_BUILTINS

gcc/config/bfin/bfin.h

@@ -41,6 +41,7 @@ extern int target_flags;
     {                                           \
       builtin_define ("bfin");                  \
       builtin_define ("BFIN");                  \
+      builtin_define ("__ADSPBLACKFIN__");	\
       if (TARGET_ID_SHARED_LIBRARY)		\
 	builtin_define ("__ID_SHARED_LIB__");	\
     }                                           \