speedy compilation benchmark (#11852)

CHANGELOG_BEGIN
CHANGELOG_END

daml-lf/interpreter/BUILD.bazel

@@ -3,6 +3,7 @@
 
 load(
     "//bazel_tools:scala.bzl",
+    "da_scala_benchmark_jmh",
     "da_scala_library",
     "da_scala_test",
     "da_scala_test_suite",
@@ -107,3 +108,29 @@ scala_repl(
         ":interpreter",
     ],
 )
+
+da_scala_benchmark_jmh(
+    name = "speedy-compilation-benchmark",
+    srcs = glob(["src/bench/**/*.scala"]),
+    data = [
+        "//ledger/test-common:model-tests-1.14.dar",
+    ],
+    scala_deps = [
+        "@maven//:org_scalaz_scalaz_core",
+    ],
+    visibility = ["//visibility:public"],
+    deps = [
+        "//bazel_tools/runfiles:scala_runfiles",
+        "//daml-lf/archive:daml_lf_archive_reader",
+        "//daml-lf/archive:daml_lf_dev_archive_proto_java",
+        "//daml-lf/data",
+        "//daml-lf/engine",
+        "//daml-lf/interpreter",
+        "//daml-lf/language",
+        "//daml-lf/scenario-interpreter",
+        "//daml-lf/transaction",
+        "//daml-lf/validation",
+        "//ledger/test-common:dar-files-default-lib",
+        "@maven//:com_google_protobuf_protobuf_java",
+    ],
+)

daml-lf/interpreter/src/bench/com/daml/lf/interpreter/SpeedyCompilationBench.scala

@@ -0,0 +1,45 @@
+// Copyright (c) 2021 Digital Asset (Switzerland) GmbH and/or its affiliates. All rights reserved.
+// SPDX-License-Identifier: Apache-2.0
+
+package com.daml.lf.speedy
+
+import com.daml.bazeltools.BazelRunfiles.rlocation
+import com.daml.ledger.test.ModelTestDar
+import com.daml.lf.archive.DarDecoder
+import com.daml.lf.archive.Dar
+import com.daml.lf.data.Ref.PackageId
+import com.daml.lf.language.Ast.Package
+import com.daml.lf.language.PackageInterface
+import com.daml.lf.speedy
+import java.io.File
+import org.openjdk.jmh.annotations.{Param, Setup, Level, Benchmark, State, Scope}
+
+@State(Scope.Benchmark)
+class SpeedyCompilation {
+
+  @Param(Array(""))
+  var darPath: String = _
+
+  private var dar: Dar[(PackageId, Package)] = _
+  private var darMap: Map[PackageId, Package] = _
+  private var interface: PackageInterface = _
+
+  @Setup(Level.Trial)
+  def setup(): Unit = {
+    val darFile = new File(
+      if (darPath.isEmpty)
+        rlocation(ModelTestDar.path)
+      else darPath
+    )
+    dar = DarDecoder.assertReadArchiveFromFile(darFile)
+    darMap = dar.all.toMap
+    interface = PackageInterface(darMap)
+  }
+
+  @Benchmark
+  def bench(): Unit = {
+    val config = speedy.Compiler.Config.Default
+    val res = speedy.Compiler.compilePackages(interface, darMap, config)
+    assert(res.isRight)
+  }
+}