src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.hotspot.test/src/org/graalvm/compiler/hotspot/test/CompilationWrapperTest.java

*** 80,100 ****
--- 80,104 ----
                          "-Dgraal.CrashAt=root test1"),
                          "org.graalvm.compiler.truffle.test.SLTruffleGraalTestSuite",
                          "test");
      }
  
+     private static final boolean VERBOSE = Boolean.getBoolean(CompilationWrapperTest.class.getSimpleName() + ".verbose");
+ 
      private static void testHelper(List<String> extraVmArgs, String... mainClassAndArgs) throws IOException, InterruptedException {
          final File dumpPath = new File(CompilationWrapperTest.class.getSimpleName() + "_" + System.currentTimeMillis()).getAbsoluteFile();
          List<String> vmArgs = withoutDebuggerArguments(getVMCommandLine());
          vmArgs.removeIf(a -> a.startsWith("-Dgraal."));
          vmArgs.add("-Dgraal.DumpPath=" + dumpPath);
          // Force output to a file even if there's a running IGV instance available.
          vmArgs.add("-Dgraal.PrintGraphFile=true");
          vmArgs.addAll(extraVmArgs);
  
          Subprocess proc = SubprocessUtil.java(vmArgs, mainClassAndArgs);
+         if (VERBOSE) {
              System.out.println(proc);
+         }
  
          String forcedCrashString = "Forced crash after compiling";
          String diagnosticOutputFilePrefix = "Graal diagnostic output saved in ";
  
          boolean seenForcedCrashString = false;