--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/graal/com.oracle.jvmci.asm.amd64.test/src/com/oracle/jvmci/asm/amd64/test/BitOpsTest.java	Wed Jun 03 18:33:23 2015 +0200
@@ -0,0 +1,267 @@
+/*
+ * Copyright (c) 2013, 2015, 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.
+ */
+
+package com.oracle.jvmci.asm.amd64.test;
+
+import com.oracle.jvmci.amd64.*;
+import com.oracle.jvmci.amd64.AMD64.*;
+import com.oracle.jvmci.asm.amd64.*;
+import com.oracle.jvmci.asm.test.*;
+import com.oracle.jvmci.code.RegisterConfig;
+import com.oracle.jvmci.code.TargetDescription;
+import com.oracle.jvmci.code.Register;
+import com.oracle.jvmci.code.CallingConvention;
+import com.oracle.jvmci.code.CompilationResult;
+import com.oracle.jvmci.meta.Kind;
+
+import static com.oracle.jvmci.asm.amd64.AMD64Assembler.AMD64RMOp.*;
+import static com.oracle.jvmci.asm.amd64.AMD64Assembler.OperandSize.*;
+import static com.oracle.jvmci.code.ValueUtil.*;
+import static com.oracle.jvmci.common.UnsafeAccess.*;
+import static org.junit.Assume.*;
+
+import java.lang.reflect.*;
+import java.util.*;
+
+import org.junit.*;
+
+public class BitOpsTest extends AssemblerTest {
+    private static boolean lzcntSupported;
+    private static boolean tzcntSupported;
+
+    @Before
+    public void checkAMD64() {
+        assumeTrue("skipping AMD64 specific test", codeCache.getTarget().arch instanceof AMD64);
+        EnumSet<CPUFeature> features = ((AMD64) codeCache.getTarget().arch).getFeatures();
+        lzcntSupported = features.contains(CPUFeature.LZCNT);
+        tzcntSupported = features.contains(CPUFeature.BMI1);
+    }
+
+    @Test
+    public void lzcntlTest() {
+        if (lzcntSupported) {
+            CodeGenTest test = new CodeGenTest() {
+
+                @Override
+                public byte[] generateCode(CompilationResult compResult, TargetDescription target, RegisterConfig registerConfig, CallingConvention cc) {
+                    AMD64Assembler asm = new AMD64Assembler(target, registerConfig);
+                    Register ret = registerConfig.getReturnRegister(Kind.Int);
+                    Register arg = asRegister(cc.getArgument(0));
+                    LZCNT.emit(asm, DWORD, ret, arg);
+                    asm.ret(0);
+                    return asm.close(true);
+                }
+            };
+            assertReturn("intStub", test, 31, 1);
+        }
+    }
+
+    @Test
+    public void lzcntlMemTest() {
+        if (lzcntSupported) {
+            CodeGenTest test = new CodeGenTest() {
+
+                @Override
+                public byte[] generateCode(CompilationResult compResult, TargetDescription target, RegisterConfig registerConfig, CallingConvention cc) {
+                    AMD64Assembler asm = new AMD64Assembler(target, registerConfig);
+                    Register ret = registerConfig.getReturnRegister(Kind.Int);
+                    try {
+                        Field f = IntField.class.getDeclaredField("x");
+                        AMD64Address arg = new AMD64Address(asRegister(cc.getArgument(0)), (int) unsafe.objectFieldOffset(f));
+                        LZCNT.emit(asm, DWORD, ret, arg);
+                        asm.ret(0);
+                        return asm.close(true);
+                    } catch (Exception e) {
+                        throw new RuntimeException("exception while trying to generate field access:", e);
+                    }
+                }
+            };
+            assertReturn("intFieldStub", test, 31, new IntField(1));
+        }
+    }
+
+    @Test
+    public void lzcntqTest() {
+        if (lzcntSupported) {
+            CodeGenTest test = new CodeGenTest() {
+
+                @Override
+                public byte[] generateCode(CompilationResult compResult, TargetDescription target, RegisterConfig registerConfig, CallingConvention cc) {
+                    AMD64Assembler asm = new AMD64Assembler(target, registerConfig);
+                    Register ret = registerConfig.getReturnRegister(Kind.Int);
+                    Register arg = asRegister(cc.getArgument(0));
+                    LZCNT.emit(asm, QWORD, ret, arg);
+                    asm.ret(0);
+                    return asm.close(true);
+                }
+            };
+            assertReturn("longStub", test, 63, 1L);
+        }
+    }
+
+    @Test
+    public void lzcntqMemTest() {
+        if (lzcntSupported) {
+            CodeGenTest test = new CodeGenTest() {
+
+                @Override
+                public byte[] generateCode(CompilationResult compResult, TargetDescription target, RegisterConfig registerConfig, CallingConvention cc) {
+                    AMD64Assembler asm = new AMD64Assembler(target, registerConfig);
+                    Register ret = registerConfig.getReturnRegister(Kind.Int);
+                    try {
+                        Field f = LongField.class.getDeclaredField("x");
+                        AMD64Address arg = new AMD64Address(asRegister(cc.getArgument(0)), (int) unsafe.objectFieldOffset(f));
+                        LZCNT.emit(asm, QWORD, ret, arg);
+                        asm.ret(0);
+                        return asm.close(true);
+                    } catch (Exception e) {
+                        throw new RuntimeException("exception while trying to generate field access:", e);
+                    }
+                }
+            };
+            assertReturn("longFieldStub", test, 63, new LongField(1));
+        }
+    }
+
+    @Test
+    public void tzcntlTest() {
+        if (tzcntSupported) {
+            CodeGenTest test = new CodeGenTest() {
+
+                @Override
+                public byte[] generateCode(CompilationResult compResult, TargetDescription target, RegisterConfig registerConfig, CallingConvention cc) {
+                    AMD64Assembler asm = new AMD64Assembler(target, registerConfig);
+                    Register ret = registerConfig.getReturnRegister(Kind.Int);
+                    Register arg = asRegister(cc.getArgument(0));
+                    TZCNT.emit(asm, DWORD, ret, arg);
+                    asm.ret(0);
+                    return asm.close(true);
+                }
+            };
+            assertReturn("intStub", test, 31, 0x8000_0000);
+        }
+    }
+
+    @Test
+    public void tzcntlMemTest() {
+        if (tzcntSupported) {
+            CodeGenTest test = new CodeGenTest() {
+
+                @Override
+                public byte[] generateCode(CompilationResult compResult, TargetDescription target, RegisterConfig registerConfig, CallingConvention cc) {
+                    AMD64Assembler asm = new AMD64Assembler(target, registerConfig);
+                    Register ret = registerConfig.getReturnRegister(Kind.Int);
+                    try {
+                        Field f = IntField.class.getDeclaredField("x");
+                        AMD64Address arg = new AMD64Address(asRegister(cc.getArgument(0)), (int) unsafe.objectFieldOffset(f));
+                        TZCNT.emit(asm, DWORD, ret, arg);
+                        asm.ret(0);
+                        return asm.close(true);
+                    } catch (Exception e) {
+                        throw new RuntimeException("exception while trying to generate field access:", e);
+                    }
+                }
+            };
+            assertReturn("intFieldStub", test, 31, new IntField(0x8000_0000));
+        }
+    }
+
+    @Test
+    public void tzcntqTest() {
+        if (tzcntSupported) {
+            CodeGenTest test = new CodeGenTest() {
+
+                @Override
+                public byte[] generateCode(CompilationResult compResult, TargetDescription target, RegisterConfig registerConfig, CallingConvention cc) {
+                    AMD64Assembler asm = new AMD64Assembler(target, registerConfig);
+                    Register ret = registerConfig.getReturnRegister(Kind.Int);
+                    Register arg = asRegister(cc.getArgument(0));
+                    TZCNT.emit(asm, QWORD, ret, arg);
+                    asm.ret(0);
+                    return asm.close(true);
+                }
+            };
+            assertReturn("longStub", test, 63, 0x8000_0000_0000_0000L);
+        }
+    }
+
+    @Test
+    public void tzcntqMemTest() {
+        if (tzcntSupported) {
+            CodeGenTest test = new CodeGenTest() {
+
+                @Override
+                public byte[] generateCode(CompilationResult compResult, TargetDescription target, RegisterConfig registerConfig, CallingConvention cc) {
+                    AMD64Assembler asm = new AMD64Assembler(target, registerConfig);
+                    Register ret = registerConfig.getReturnRegister(Kind.Int);
+                    try {
+                        Field f = LongField.class.getDeclaredField("x");
+                        AMD64Address arg = new AMD64Address(asRegister(cc.getArgument(0)), (int) unsafe.objectFieldOffset(f));
+                        TZCNT.emit(asm, QWORD, ret, arg);
+                        asm.ret(0);
+                        return asm.close(true);
+                    } catch (Exception e) {
+                        throw new RuntimeException("exception while trying to generate field access:", e);
+                    }
+                }
+            };
+            assertReturn("longFieldStub", test, 63, new LongField(0x8000_0000_0000_0000L));
+        }
+    }
+
+    @SuppressWarnings("unused")
+    public static int intStub(int arg) {
+        return 0;
+    }
+
+    @SuppressWarnings("unused")
+    public static int longStub(long arg) {
+        return 0;
+    }
+
+    public static class IntField {
+        public int x;
+
+        IntField(int x) {
+            this.x = x;
+        }
+    }
+
+    public static class LongField {
+        public long x;
+
+        LongField(long x) {
+            this.x = x;
+        }
+    }
+
+    @SuppressWarnings("unused")
+    public static int intFieldStub(IntField arg) {
+        return 0;
+    }
+
+    @SuppressWarnings("unused")
+    public static int longFieldStub(LongField arg) {
+        return 0;
+    }
+}