8348401: [IR Framework] PrintTimes should not require verbose

Reviewed-by: kvn, chagedorn

Author: Theo Weidmann

test/hotspot/jtreg/compiler/lib/ir_framework/shared/TestFrameworkSocket.java

@@ -43,6 +43,7 @@ public class TestFrameworkSocket implements AutoCloseable {
     public static final String STDOUT_PREFIX = "[STDOUT]";
     public static final String TESTLIST_TAG = "[TESTLIST]";
     public static final String DEFAULT_REGEX_TAG = "[DEFAULT_REGEX]";
+    public static final String PRINT_TIMES_TAG = "[PRINT_TIMES]";
 
     // Static fields used for test VM only.
     private static final String SERVER_PORT_PROPERTY = "ir.framework.server.port";
@@ -123,6 +124,12 @@ public static void write(String msg, String tag) {
 
     /**
      * Only called by test VM to write to server socket.
+     * <p>
+     * The test VM is spawned by the main jtreg VM. The stdout of the test VM is hidden
+     * unless the Verbose or ReportStdout flag is used. TestFrameworkSocket is used by the parent jtreg
+     * VM and the test VM to communicate. By sending the prints through the TestFrameworkSocket with the
+     * parameter stdout set to true, the parent VM will print the received messages to its stdout, making it
+     * visible to the user.
      */
     public static void write(String msg, String tag, boolean stdout) {
         if (REPRODUCE) {

test/hotspot/jtreg/compiler/lib/ir_framework/test/TestVM.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2021, 2024, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2021, 2025, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -38,6 +38,8 @@
 import java.util.stream.Collectors;
 import java.util.stream.Stream;
 
+import static compiler.lib.ir_framework.shared.TestFrameworkSocket.PRINT_TIMES_TAG;
+
 /**
  * This class' main method is called from {@link TestFramework} and represents the so-called "test VM". The class is
  * the heart of the framework and is responsible for executing all the specified tests in the test class. It uses the
@@ -883,9 +885,10 @@ private void runTests() {
 
         // Print execution times
         if (VERBOSE || PRINT_TIMES) {
-            System.out.println(System.lineSeparator() + System.lineSeparator() + "Test execution times:");
+            TestFrameworkSocket.write("Test execution times:", PRINT_TIMES_TAG, true);
             for (Map.Entry<Long, String> entry : durations.entrySet()) {
-                System.out.format("%-10s%15d ns%n", entry.getValue() + ":", entry.getKey());
+                TestFrameworkSocket.write(String.format("%-25s%15d ns%n", entry.getValue() + ":", entry.getKey()),
+                        PRINT_TIMES_TAG, true);
             }
         }