version updates

.github/workflows/ci.yml

@@ -9,16 +9,18 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        java: [8, 11, 17]
+        java: [8, 21, 25]
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v5
       with:
         fetch-depth: 0
-    - uses: coursier/cache-action@v6
-    - uses: actions/setup-java@v2
+    - name: Setup JDK
+      uses: actions/setup-java@v5
       with:
         distribution: temurin
         java-version: ${{matrix.java}}
+        cache: sbt
+    - uses: sbt/setup-sbt@v1
     - name: Test
       run: sbt testAll

build.sbt

@@ -2,19 +2,14 @@ name := "compiler-benchmark"
 
 version := "1.0-SNAPSHOT"
 
-def scala212 = "2.12.15"
-def dottyLatest = "0.25.0"
-ThisBuild / scalaVersion := scala212
+def scala213 = "2.13.16"
+ThisBuild / scalaVersion := scala213
 val JmhConfig = config("jmh")
 
 commands += Command.command("testAll") { s =>
   "Test/compile" ::
     "compilation/test" ::
     "hot -psource=scalap -wi 1 -i 1 -f1" ::
-    s"++$dottyLatest" ::
-    "compilation/test" ::
-    "hot -psource=re2s -wi 1 -i 1 -f1" ::
-    s"++$scala212" ::
     "micro/Jmh/run -w1 -f1" ::
     s
 }
@@ -53,15 +48,12 @@ lazy val compilation = addJmh(project).settings(
   // We should be able to switch this project to a broad range of Scala versions for comparative
   // benchmarking. As such, this project should only depend on the high level `MainClass` compiler API.
   description := "Black box benchmark of the compiler",
-  libraryDependencies += {
-    if (isDotty.value) "ch.epfl.lamp" %% "dotty-compiler" % scalaVersion.value
-    else scalaOrganization.value % "scala-compiler" % scalaVersion.value
-  },
-  crossScalaVersions := List(scala212, dottyLatest),
+  libraryDependencies += scalaOrganization.value % "scala-compiler" % scalaVersion.value,
+  crossScalaVersions := List(scala213),
   Compile / unmanagedSourceDirectories +=
-    (Compile / sourceDirectory).value / (if (isDotty.value) "dotc" else "scalac"),
+    (Compile / sourceDirectory).value / "scalac",
   Jmh / run / mainClass := Some("scala.bench.ScalacBenchmarkRunner"),
-  libraryDependencies += "com.novocode" % "junit-interface" % "0.11" % Test,
+  libraryDependencies += "com.github.sbt" % "junit-interface" % "0.13.2" % Test,
   Test / testOptions += Tests.Argument(TestFrameworks.JUnit),
   Test / test / fork := true, // jmh scoped tasks run with fork := true.
 ).settings(addJavaOptions).dependsOn(infrastructure)
@@ -70,7 +62,7 @@ lazy val javaCompilation = addJmh(project).settings(
   description := "Black box benchmark of the java compiler",
   crossPaths := false,
   Jmh / run / mainClass := Some("scala.bench.ScalacBenchmarkRunner"),
-  libraryDependencies += "com.novocode" % "junit-interface" % "0.11" % Test,
+  libraryDependencies += "com.github.sbt" % "junit-interface" % "0.13.2" % Test,
   Test / testOptions += Tests.Argument(TestFrameworks.JUnit),
   Test / test/ fork := true // jmh scoped tasks run with fork := true.
 ).settings(addJavaOptions).dependsOn(infrastructure)
@@ -101,14 +93,14 @@ lazy val addJavaOptions = javaOptions ++= {
   )
 }
 
-addCommandAlias("hot", "compilation/jmh:run HotScalacBenchmark -foe true")
+addCommandAlias("hot", "compilation/Jmh/run HotScalacBenchmark -foe true")
 
-addCommandAlias("cold", "compilation/jmh:run ColdScalacBenchmark -foe true")
+addCommandAlias("cold", "compilation/Jmh/run ColdScalacBenchmark -foe true")
 
 commands ++= build.Profiler.commands
 
 // duplicated in project/build.sbt
-val jmhV = System.getProperty("jmh.version", "1.31")
+val jmhV = System.getProperty("jmh.version", "1.37")
 
 def addJmh(project: Project): Project = {
   // IntelliJ SBT project import doesn't like sbt-jmh's default setup, which results the prod and test

compilation/src/main/scala/scala/tools/nsc/ThreadCpuTimeProfiler.java

@@ -89,7 +89,7 @@ static class NormTimeResult extends Result<NormTimeResult> {
         private final long ops;
 
         public NormTimeResult(String prefix, long cycles, long instructions) {
-            super(ResultRole.SECONDARY, Defaults.PREFIX + prefix, of(Double.NaN), "---", AggregationPolicy.AVG);
+            super(ResultRole.SECONDARY, prefix, of(Double.NaN), "---", AggregationPolicy.AVG);
             this.prefix = prefix;
             this.scalar = cycles;
             this.ops = instructions;
@@ -111,7 +111,7 @@ public NormTimeResult aggregate(Collection<NormTimeResult> results) {
 
         @Override
         protected Aggregator<NormTimeResult> getIterationAggregator() {
-            NormTimeResultAggregator normTimeResultAggregator = new NormTimeResultAggregator(Defaults.PREFIX + prefix);
+            NormTimeResultAggregator normTimeResultAggregator = new NormTimeResultAggregator(prefix);
             return (Aggregator<NormTimeResult>) (Object) normTimeResultAggregator;
         }
 

project/build.properties

@@ -1 +1 @@
-sbt.version=1.8.2
+sbt.version=1.11.6

project/build.sbt

@@ -1,4 +1,4 @@
-val jmhV = System.getProperty("jmh.version", "1.31")  // duplicated in build.sbt
+val jmhV = System.getProperty("jmh.version", "1.37")  // duplicated in build.sbt
 
 libraryDependencies ++= List(
   "org.openjdk.jmh"     % "jmh-core"                 % jmhV,

project/plugins.sbt

@@ -2,7 +2,4 @@
 logLevel := Level.Warn
 
 // sbt-jmh plugin - pulls in JMH dependencies too
-addSbtPlugin("pl.project13.scala" % "sbt-jmh" % "0.4.3")
-
-// sbt-dotty plugin - to support `scalaVersion := "0.x"`
-addSbtPlugin("ch.epfl.lamp" % "sbt-dotty" % "0.4.2")
+addSbtPlugin("pl.project13.scala" % "sbt-jmh" % "0.4.7")