hotspot/test/compiler/jvmci/jdk.vm.ci.code.test/src/jdk/vm/ci/code/test/MaxOopMapStackOffsetTest.java
changeset 39441 7464b1552bf7
child 40059 c2304140ed64
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/compiler/jvmci/jdk.vm.ci.code.test/src/jdk/vm/ci/code/test/MaxOopMapStackOffsetTest.java	Wed Jun 22 22:39:32 2016 +0000
@@ -0,0 +1,90 @@
+/*
+ * Copyright (c) 2016, 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
+ * @requires (os.simpleArch == "x64" | os.simpleArch == "sparcv9") & os.arch != "aarch64"
+ * @library /
+ * @modules jdk.vm.ci/jdk.vm.ci.hotspot
+ *          jdk.vm.ci/jdk.vm.ci.meta
+ *          jdk.vm.ci/jdk.vm.ci.code
+ *          jdk.vm.ci/jdk.vm.ci.code.site
+ *          jdk.vm.ci/jdk.vm.ci.common
+ *          jdk.vm.ci/jdk.vm.ci.runtime
+ *          jdk.vm.ci/jdk.vm.ci.amd64
+ *          jdk.vm.ci/jdk.vm.ci.sparc
+ * @compile CodeInstallationTest.java DebugInfoTest.java TestAssembler.java TestHotSpotVMConfig.java amd64/AMD64TestAssembler.java sparc/SPARCTestAssembler.java
+ * @run junit/othervm -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI jdk.vm.ci.code.test.MaxOopMapStackOffsetTest
+ */
+
+package jdk.vm.ci.code.test;
+
+import org.junit.Test;
+
+import jdk.vm.ci.code.Location;
+import jdk.vm.ci.code.Register;
+import jdk.vm.ci.common.JVMCIError;
+import jdk.vm.ci.meta.JavaConstant;
+import jdk.vm.ci.meta.JavaKind;
+
+public class MaxOopMapStackOffsetTest extends DebugInfoTest {
+
+    public static int pass() {
+        return 42;
+    }
+
+    public static int fail() {
+        return 42;
+    }
+
+    private void test(String name, int offset) {
+        Location location = Location.stack(offset);
+               DebugInfoCompiler compiler = (asm, values) -> {
+            asm.growFrame(offset);
+            Register v = asm.emitLoadInt(0);
+            asm.emitIntToStack(v);
+            values[0] = JavaConstant.forInt(42);
+            return null;
+        };
+        test(compiler, getMethod(name), 2, new Location[]{location}, new Location[1], new int[]{4}, JavaKind.Int);
+    }
+
+    private int maxOffset() {
+        return config.maxOopMapStackOffset;
+    }
+
+    private int wordSize() {
+        return config.heapWordSize;
+    }
+
+    @Test(expected = JVMCIError.class)
+    public void failTooLargeOffset() {
+        // This should throw a JVMCIError during installation because the offset is too large.
+        test("fail", maxOffset() + wordSize());
+    }
+
+    @Test
+    public void passWithLargeOffset() {
+        test("pass", maxOffset());
+    }
+}