Add -Xdump-perf

compiler/cli/cli-common/src/org/jetbrains/kotlin/cli/common/arguments/CommonCompilerArguments.kt

@@ -153,6 +153,13 @@ abstract class CommonCompilerArguments : CommonToolArguments() {
     @Argument(value = "-Xreport-perf", description = "Report detailed performance statistics")
     var reportPerf: Boolean by FreezableVar(false)
 
+    @Argument(
+        value = "-Xdump-perf",
+        valueDescription = "<path>",
+        description = "Dump detailed performance statistics to the specified file"
+    )
+    var dumpPerf: String? by FreezableVar(null)
+
     open fun configureAnalysisFlags(collector: MessageCollector): MutableMap<AnalysisFlag<*>, Any> {
         return HashMap<AnalysisFlag<*>, Any>().apply {
             put(AnalysisFlag.skipMetadataVersionCheck, skipMetadataVersionCheck)

compiler/cli/src/org/jetbrains/kotlin/cli/common/CLICompiler.java

@@ -69,7 +69,7 @@ public abstract class CLICompiler<A extends CommonCompilerArguments> extends CLI
     @Override
     public ExitCode execImpl(@NotNull MessageCollector messageCollector, @NotNull Services services, @NotNull A arguments) {
         CommonCompilerPerformanceManager performanceManager = getPerformanceManager();
-        if (arguments.getReportPerf()) {
+        if (arguments.getReportPerf() || arguments.getDumpPerf() != null) {
             performanceManager.enableCollectingPerformanceStatistics();
         }
 
@@ -101,6 +101,10 @@ public abstract class CLICompiler<A extends CommonCompilerArguments> extends CLI
                     );
                 }
 
+                if (arguments.getDumpPerf() != null) {
+                    performanceManager.dumpPerformanceReport(new File(arguments.getDumpPerf()));
+                }
+
                 return groupingCollector.hasErrors() ? COMPILATION_ERROR : code;
             }
             catch (CompilationCanceledException e) {

compiler/cli/src/org/jetbrains/kotlin/cli/common/CommonCompilerPerformanceManager.kt

@@ -6,6 +6,7 @@
 package org.jetbrains.kotlin.cli.common
 
 import org.jetbrains.kotlin.util.PerformanceCounter
+import java.io.File
 import java.lang.management.ManagementFactory
 import java.util.concurrent.TimeUnit
 
@@ -53,6 +54,10 @@ abstract class CommonCompilerPerformanceManager(private val presentableName: Str
         measurements += CodeGenerationMeasurement(lines, files, TimeUnit.NANOSECONDS.toMillis(time), additionalDescription)
     }
 
+    fun dumpPerformanceReport(destination: File) {
+        destination.writeBytes(createPerformanceReport())
+    }
+
     private fun recordGcTime() {
         if (!isEnabled) return
 
@@ -76,4 +81,9 @@ abstract class CommonCompilerPerformanceManager(private val presentableName: Str
     private fun recordPerfCountersMeasurements() {
         PerformanceCounter.report { s -> measurements += PerformanceCounterMeasurement(s) }
     }
+
+    private fun createPerformanceReport(): ByteArray = buildString {
+        appendln("$presentableName performance report")
+        measurements.map { it.render() }.sorted().forEach { appendln(it) }
+    }.toByteArray()
 }