Add option to disable combinational loop detection

Resolves #600

1 files changed, 9 insertions, 1 deletions

diff --git a/src/main/scala/firrtl/ExecutionOptionsManager.scala b/src/main/scala/firrtl/ExecutionOptionsManager.scala
index 76b497ec..ebe27a7d 100644
--- a/src/main/scala/firrtl/ExecutionOptionsManager.scala
+++ b/src/main/scala/firrtl/ExecutionOptionsManager.scala
@@ -156,7 +156,8 @@ case class FirrtlExecutionOptions(
     annotations:            List[Annotation] = List.empty,
     annotationFileNameOverride: String = "",
     forceAppendAnnoFile:    Boolean = false,
-    emitOneFilePerModule:   Boolean = false)
+    emitOneFilePerModule:   Boolean = false,
+    dontCheckCombLoops:     Boolean = false)
   extends ComposableOptions {
 
   require(!(emitOneFilePerModule && outputFileNameOverride.nonEmpty),
@@ -412,6 +413,13 @@ trait HasFirrtlOptions {
       "Emit each module to its own file in the target directory."
     }
 
+  parser.opt[Unit]("no-check-comb-loops")
+    .foreach { _ =>
+      firrtlOptions = firrtlOptions.copy(dontCheckCombLoops = true)
+    }.text {
+      "Do NOT check for combinational loops (not recommended)"
+    }
+
   parser.note("")
 }