From df5a95454ff0414d1d3ce16d06dbe27b152e3751 Mon Sep 17 00:00:00 2001
From: Zachary Yedidia
Date: Thu, 25 Aug 2022 12:04:37 -0700
Subject: Backport of eager error messages for annotations (3.5.x) (#2700)
 (#2705)

---
 src/main/scala/chisel3/util/experimental/decode/decoder.scala | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'src/main/scala/chisel3/util/experimental/decode/decoder.scala')

diff --git a/src/main/scala/chisel3/util/experimental/decode/decoder.scala b/src/main/scala/chisel3/util/experimental/decode/decoder.scala
index 4feda672..067dd6f8 100644
--- a/src/main/scala/chisel3/util/experimental/decode/decoder.scala
+++ b/src/main/scala/chisel3/util/experimental/decode/decoder.scala
@@ -6,6 +6,7 @@ import chisel3._
 import chisel3.experimental.{annotate, ChiselAnnotation}
 import chisel3.util.{pla, BitPat}
 import chisel3.util.experimental.{getAnnotations, BitSet}
+import chisel3.internal.Builder
 import firrtl.annotations.Annotation
 import logger.LazyLogging
 
@@ -30,6 +31,7 @@ object decoder extends LazyLogging {
       val (plaInput, plaOutput) =
         pla(minimizedTable.table.toSeq, BitPat(minimizedTable.default.value.U(minimizedTable.default.getWidth.W)))
 
+      assert(plaOutput.isSynthesizable, s"Using DecodeTableAnnotation on non-hardware value $plaOutput")
       annotate(new ChiselAnnotation {
         override def toFirrtl: Annotation =
           DecodeTableAnnotation(plaOutput.toTarget, truthTable.toString, minimizedTable.toString)
-- 
cgit v1.2.3