1 files changed, 13 insertions, 0 deletions
diff --git a/gcc/config/i386/predicates.md b/gcc/config/i386/predicates.md
index 4ccbe11..770e2f0 100644
--- a/gcc/config/i386/predicates.md
+++ b/gcc/config/i386/predicates.md
@@ -1844,6 +1844,19 @@
   return true;
 })
 
+;; Return true if OP is a const vector with duplicate value.
+(define_predicate "const_vector_duplicate_operand"
+  (match_code "const_vector")
+{
+  rtx elt = XVECEXP (op, 0, 0);
+  int i, nelt = XVECLEN (op, 0);
+
+  for (i = 1; i < nelt; ++i)
+    if (!rtx_equal_p (elt, XVECEXP (op, 0, i)))
+      return false;
+  return true;
+})
+
 ;; Return true if OP is a parallel for a vbroadcast permute.
 (define_predicate "avx_vbroadcast_operand"
   (and (match_code "parallel")