From a8d32388ffa8c29a3b0f9e78ab6cd917b92954cd Mon Sep 17 00:00:00 2001
From: Jack Koenig
Date: Thu, 4 Mar 2021 18:24:08 -0800
Subject: [plugin] Stop autoclonetype stack traces when using plugin

The compiler plugin obviates the need for using stack traces to
determine outer objects in autoclonetype. When the plugin was used to
compile a given Bundle, it will no longer collect a stack trace upon
construction. This should have massive benefits to elaboration runtime.
---
 core/src/main/scala/chisel3/Aggregate.scala | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

(limited to 'core/src')

diff --git a/core/src/main/scala/chisel3/Aggregate.scala b/core/src/main/scala/chisel3/Aggregate.scala
index 30276230..c5a917fa 100644
--- a/core/src/main/scala/chisel3/Aggregate.scala
+++ b/core/src/main/scala/chisel3/Aggregate.scala
@@ -809,11 +809,11 @@ abstract class Bundle(implicit compileOptions: CompileOptions) extends Record {
   // (like the outer module or enclosing Bundles).
   private var _outerInst: Option[Object] = None
 
-  // For autoclonetype, record possible candidates for outer instance.
+  // For reflective autoclonetype, record possible candidates for outer instance.
   // _outerInst should always take precedence, since it should be propagated from the original
   // object which has the most accurate context.
-  private val _containingModule: Option[BaseModule] = Builder.currentModule
-  private val _containingBundles: Seq[Bundle] = Builder.updateBundleStack(this)
+  private val _containingModule: Option[BaseModule] = if (_usingPlugin) None else Builder.currentModule
+  private val _containingBundles: Seq[Bundle] = if (_usingPlugin) Nil else Builder.updateBundleStack(this)
 
   private def checkClone(clone: Bundle): Unit = {
     for ((name, field) <- elements) {
-- 
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