8255742: PrintInlining as compiler directive doesn't print virtual calls

Reviewed-by: thartmann, kvn

src/hotspot/share/opto/doCall.cpp

@@ -355,7 +355,9 @@ CallGenerator* Compile::call_generator(ciMethod* callee, int vtable_index, bool
   // Use a more generic tactic, like a simple call.
   if (call_does_dispatch) {
     const char* msg = "virtual call";
-    if (PrintInlining) print_inlining(callee, jvms->depth() - 1, jvms->bci(), msg);
+    if (C->print_inlining()) {
+      print_inlining(callee, jvms->depth() - 1, jvms->bci(), msg);
+    }
     C->log_inline_failure(msg);
     return CallGenerator::for_virtual_call(callee, vtable_index);
   } else {

test/hotspot/jtreg/compiler/inlining/PrintInlining.java

@@ -0,0 +1,98 @@
+/*
+ * Copyright (c) 2020, 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
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/**
+ * @test
+ * @bug 8255742
+ * @summary PrintInlining as compiler directive doesn't print virtual calls
+ * @modules java.base/jdk.internal.misc
+ * @library /test/lib
+ *
+ * @run driver compiler.inlining.PrintInlining
+ */
+
+package compiler.inlining;
+
+import jdk.test.lib.process.OutputAnalyzer;
+import jdk.test.lib.process.ProcessTools;
+
+public class PrintInlining {
+
+    static void test(String option) throws Exception {
+        ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
+                "-XX:+IgnoreUnrecognizedVMOptions", "-showversion",
+                "-server", "-XX:-TieredCompilation", "-Xbatch", "-XX:-UseOnStackReplacement",
+                "-XX:CompileCommand=dontinline,*::bar",
+                "-XX:CompileCommand=compileonly,*::foo",
+                "-XX:+PrintCompilation", "-XX:+UnlockDiagnosticVMOptions", option,
+                Launcher.class.getName());
+
+        OutputAnalyzer analyzer = new OutputAnalyzer(pb.start());
+
+        analyzer.shouldHaveExitValue(0);
+
+        // The test is applicable only to C2 (present in Server VM).
+        if (analyzer.getStderr().contains("Server VM")) {
+            analyzer.outputTo(System.out);
+            if (analyzer.asLines().stream()
+                .filter(s -> s.matches(".*A::bar.+virtual call.*"))
+                .count() != 1) {
+                throw new Exception("'" + option + "' didn't print virtual call.");
+            }
+        }
+    }
+
+    public static void main(String[] args) throws Exception {
+        test("-XX:+PrintInlining");
+        test("-XX:CompileCommand=option,*::foo,PrintInlining");
+    }
+
+    static class A {
+        void bar() {}
+    }
+
+    static class B extends A {
+        void bar() {}
+    }
+
+    static class C extends A {
+        void bar() {}
+    }
+
+    static class D extends A {
+        void bar() {}
+    }
+
+    static void foo(A a) {
+        a.bar();
+    }
+
+    static class Launcher {
+        public static void main(String[] args) throws Exception {
+            A[] as = { new B(), new C(), new D() };
+            for (int i = 0; i < 20_000; i++) {
+                foo(as[i % 3]);
+            }
+        }
+    }
+}