1 files changed, 77 insertions, 0 deletions
diff --git a/gcc/config/nds32/nds32-predicates.c b/gcc/config/nds32/nds32-predicates.c
index a670623bf9a1..2363b9679766 100644
--- a/gcc/config/nds32/nds32-predicates.c
+++ b/gcc/config/nds32/nds32-predicates.c
@@ -518,4 +518,81 @@ nds32_const_double_range_ok_p (rtx op, machine_mode mode,
 
   return val >= lower && val < upper;
 }
+
+HOST_WIDE_INT
+const_vector_to_hwint (rtx op)
+{
+  HOST_WIDE_INT hwint = 0;
+  HOST_WIDE_INT mask;
+  int i;
+  int shift_adv;
+  int shift = 0;
+  int nelem;
+
+  switch (GET_MODE (op))
+    {
+      case V2HImode:
+	mask = 0xffff;
+	shift_adv = 16;
+	nelem = 2;
+	break;
+      case V4QImode:
+	mask = 0xff;
+	shift_adv = 8;
+	nelem = 4;
+	break;
+      default:
+	gcc_unreachable ();
+    }
+
+  if (TARGET_BIG_ENDIAN)
+    {
+      for (i = 0; i < nelem; ++i)
+	{
+	  HOST_WIDE_INT val = XINT (XVECEXP (op, 0, nelem - i - 1), 0);
+	  hwint |= (val & mask) << shift;
+	  shift = shift + shift_adv;
+	}
+    }
+  else
+    {
+      for (i = 0; i < nelem; ++i)
+	{
+	  HOST_WIDE_INT val = XINT (XVECEXP (op, 0, i), 0);
+	  hwint |= (val & mask) << shift;
+	  shift = shift + shift_adv;
+	}
+    }
+
+  return hwint;
+}
+
+bool
+nds32_valid_CVp5_p (rtx op)
+{
+  HOST_WIDE_INT ival = const_vector_to_hwint (op);
+  return (ival < ((1 << 5) + 16)) && (ival >= (0 + 16));
+}
+
+bool
+nds32_valid_CVs5_p (rtx op)
+{
+  HOST_WIDE_INT ival = const_vector_to_hwint (op);
+  return (ival < (1 << 4)) && (ival >= -(1 << 4));
+}
+
+bool
+nds32_valid_CVs2_p (rtx op)
+{
+  HOST_WIDE_INT ival = const_vector_to_hwint (op);
+  return (ival < (1 << 19)) && (ival >= -(1 << 19));
+}
+
+bool
+nds32_valid_CVhi_p (rtx op)
+{
+  HOST_WIDE_INT ival = const_vector_to_hwint (op);
+  return (ival != 0) && ((ival & 0xfff) == 0);
+}
+
 /* ------------------------------------------------------------------------ */