From d95cb262aefc06458652b227980a3cdc5471d3ba Mon Sep 17 00:00:00 2001
From: Jack Koenig
Date: Tue, 19 Dec 2017 17:33:07 -0800
Subject: Add WireInit.apply that accepts DontCare (#731)

Prevents DontCare from affecting type inference
Fixes #728
---
 chiselFrontend/src/main/scala/chisel3/core/Data.scala | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

(limited to 'chiselFrontend/src')

diff --git a/chiselFrontend/src/main/scala/chisel3/core/Data.scala b/chiselFrontend/src/main/scala/chisel3/core/Data.scala
index db99d6b3..19adf01b 100644
--- a/chiselFrontend/src/main/scala/chisel3/core/Data.scala
+++ b/chiselFrontend/src/main/scala/chisel3/core/Data.scala
@@ -451,13 +451,20 @@ object WireInit {
     apply(model, init)
   }
 
-  def apply[T <: Data](t: T, init: T)(implicit sourceInfo: SourceInfo, compileOptions: CompileOptions): T = {
+  private def applyImpl[T <: Data](t: T, init: Data)(implicit sourceInfo: SourceInfo, compileOptions: CompileOptions): T = {
     implicit val noSourceInfo = UnlocatableSourceInfo
     val x = Wire(t)
     requireIsHardware(init, "wire initializer")
     x := init
     x
   }
+
+  def apply[T <: Data](t: T, init: T)(implicit sourceInfo: SourceInfo, compileOptions: CompileOptions): T = {
+    applyImpl(t, init)
+  }
+  def apply[T <: Data](t: T, init: DontCare.type)(implicit sourceInfo: SourceInfo, compileOptions: CompileOptions): T = {
+    applyImpl(t, init)
+  }
 }
 
 /** RHS (source) for Invalidate API.
-- 
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