From d0cdd3b4c3713bb7454868fac7fa9c43bae2332c Mon Sep 17 00:00:00 2001
From: Jack Koenig
Date: Fri, 1 Jun 2018 12:16:11 -0700
Subject: Literals set their ref so they no longer get named (#826)

Fixes #763
Add tests for #763 and #472

This has a few implications
* Constructing a literal no longer increments _T_ suffixes
* Internally, wrapping a literal Bits in Node(...) will work
* Literal Bools work in withReset/withClockAndReset---
 chiselFrontend/src/main/scala/chisel3/core/Bits.scala | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'chiselFrontend')

diff --git a/chiselFrontend/src/main/scala/chisel3/core/Bits.scala b/chiselFrontend/src/main/scala/chisel3/core/Bits.scala
index b3091db3..dd99d822 100644
--- a/chiselFrontend/src/main/scala/chisel3/core/Bits.scala
+++ b/chiselFrontend/src/main/scala/chisel3/core/Bits.scala
@@ -67,6 +67,9 @@ sealed abstract class Bits(width: Width, override val litArg: Option[LitArg])
   // Arguments for: self-checking code (can't do arithmetic on bits)
   // Arguments against: generates down to a FIRRTL UInt anyways
 
+  // If this is a literal, setRef so that we don't allocate a name
+  litArg.foreach(setRef)
+
   // Only used for in a few cases, hopefully to be removed
   private[core] def cloneTypeWidth(width: Width): this.type
 
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