diff options
| -rw-r--r-- | src/main/scala/chisel3/stage/ChiselAnnotations.scala | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/src/main/scala/chisel3/stage/ChiselAnnotations.scala b/src/main/scala/chisel3/stage/ChiselAnnotations.scala index 11697d7d..e4906456 100644 --- a/src/main/scala/chisel3/stage/ChiselAnnotations.scala +++ b/src/main/scala/chisel3/stage/ChiselAnnotations.scala @@ -90,7 +90,12 @@ object ChiselGeneratorAnnotation extends HasShellOptions { /** Stores a Chisel Circuit * @param circuit a Chisel Circuit */ -case class ChiselCircuitAnnotation(circuit: Circuit) extends NoTargetAnnotation with ChiselOption +case class ChiselCircuitAnnotation(circuit: Circuit) extends NoTargetAnnotation with ChiselOption { + /* Caching the hashCode for a large circuit is necessary due to repeated queries. + * Not caching the hashCode will cause severe performance degredations for large [[Circuit]]s. + */ + override lazy val hashCode: Int = circuit.hashCode +} case class ChiselOutputFileAnnotation(file: String) extends NoTargetAnnotation with ChiselOption |