Use ChiselStage in Tests

This migrates the tests to Chisel 3.4/FIRRTL 1.4. This primarily
involves removing usages of deprecated methods including:

- Remove usages of Driver
- Use ChiselStage methods instead of BackendCompilationUtilities
  methods
- Use Dependency API for custom transforms
- Use extractCause to unpack StackError

Signed-off-by: Schuyler Eldridge <schuyler.eldridge@ibm.com>

1 files changed, 10 insertions, 9 deletions

diff --git a/src/test/scala/chiselTests/AutoNestedCloneSpec.scala b/src/test/scala/chiselTests/AutoNestedCloneSpec.scala
index 743440bf..7dd0b070 100644
--- a/src/test/scala/chiselTests/AutoNestedCloneSpec.scala
+++ b/src/test/scala/chiselTests/AutoNestedCloneSpec.scala
@@ -4,6 +4,7 @@ package chiselTests
 import Chisel.ChiselException
 import org.scalatest._
 import chisel3._
+import chisel3.stage.ChiselStage
 import org.scalatest.matchers.should.Matchers
 
 class BundleWithAnonymousInner(val w: Int) extends Bundle {
@@ -12,11 +13,11 @@ class BundleWithAnonymousInner(val w: Int) extends Bundle {
   }
 }
 
-class AutoNestedCloneSpec extends ChiselFlatSpec with Matchers {
+class AutoNestedCloneSpec extends ChiselFlatSpec with Matchers with Utils {
   behavior of "autoCloneType of inner Bundle in Chisel3"
 
   it should "clone a doubly-nested inner bundle successfully" in {
-    elaborate {
+    ChiselStage.elaborate {
       class Outer(val w: Int) extends Module {
         class Middle(val w: Int) {
           class InnerIOType extends Bundle {
@@ -32,7 +33,7 @@ class AutoNestedCloneSpec extends ChiselFlatSpec with Matchers {
   }
 
   it should "clone an anonymous inner bundle successfully" in {
-    elaborate {
+    ChiselStage.elaborate {
       class TestTop(val w: Int) extends Module {
         val io = IO(new Bundle {})
         val myWire = Wire(new Bundle{ val a = UInt(w.W) })
@@ -42,7 +43,7 @@ class AutoNestedCloneSpec extends ChiselFlatSpec with Matchers {
   }
 
   it should "pick the correct $outer instance for an anonymous inner bundle" in {
-    elaborate {
+    ChiselStage.elaborate {
       class Inner(val w: Int) extends Module {
         val io = IO(new Bundle{
           val in = Input(UInt(w.W))
@@ -64,7 +65,7 @@ class AutoNestedCloneSpec extends ChiselFlatSpec with Matchers {
   }
 
   it should "clone an anonymous, bound, inner bundle of another bundle successfully" in {
-    elaborate {
+    ChiselStage.elaborate {
       class TestModule(w: Int) extends Module {
         val io = IO(new BundleWithAnonymousInner(w) )
         val w0 = WireDefault(io)
@@ -75,7 +76,7 @@ class AutoNestedCloneSpec extends ChiselFlatSpec with Matchers {
   }
 
   it should "clone an anonymous, inner bundle of a Module, bound to another bundle successfully" in {
-    elaborate {
+    ChiselStage.elaborate {
       class TestModule(w: Int) extends Module {
         val bun = new Bundle {
           val foo = UInt(w.W)
@@ -91,7 +92,7 @@ class AutoNestedCloneSpec extends ChiselFlatSpec with Matchers {
   }
 
   it should "clone a double-nested anonymous Bundle" in {
-    elaborate {
+    ChiselStage.elaborate {
       class TestModule() extends Module {
         val io = IO(new Bundle {
           val inner = Input(new Bundle {
@@ -105,7 +106,7 @@ class AutoNestedCloneSpec extends ChiselFlatSpec with Matchers {
 
   // Test ignored because the compatibility null-inserting autoclonetype doesn't trip this
   ignore should "fail on anonymous doubly-nested inner bundle with clear error" in {
-    intercept[ChiselException] { elaborate {
+    intercept[ChiselException] { extractCause[ChiselException] { ChiselStage.elaborate {
       class Outer(val w: Int) extends Module {
         class Middle(val w: Int) {
           def getIO: Bundle = new Bundle {
@@ -116,6 +117,6 @@ class AutoNestedCloneSpec extends ChiselFlatSpec with Matchers {
         val myWire = Wire((new Middle(w)).getIO)
       }
       new Outer(2)
-    }}.getMessage should include("Unable to determine instance")
+    }}}.getMessage should include("Unable to determine instance")
   }
 }