implement equal to BitPat. (#1867)

Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>

1 files changed, 7 insertions, 0 deletions

diff --git a/src/main/scala/chisel3/util/BitPat.scala b/src/main/scala/chisel3/util/BitPat.scala
index 5a40d312..88e46e3c 100644
--- a/src/main/scala/chisel3/util/BitPat.scala
+++ b/src/main/scala/chisel3/util/BitPat.scala
@@ -108,6 +108,13 @@ sealed class BitPat(val value: BigInt, val mask: BigInt, width: Int) extends Sou
   def === (that: UInt): Bool = macro SourceInfoTransform.thatArg
   def =/= (that: UInt): Bool = macro SourceInfoTransform.thatArg
 
+  override def equals(obj: Any): Boolean = {
+    obj match {
+      case y: BitPat => value == y.value && mask == y.mask && getWidth == y.getWidth
+      case _ => false
+    }
+  }
+
   /** @group SourceInfoTransformMacro */
   def do_=== (that: UInt)
       (implicit sourceInfo: SourceInfo, compileOptions: CompileOptions): Bool = {