--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/graal/com.oracle.max.graal.compiler/src/com/oracle/max/graal/compiler/target/amd64/AMD64Call.java	Wed Jan 25 14:34:53 2012 -0800
@@ -0,0 +1,168 @@
+/*
+ * Copyright (c) 2011, 2012, 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.max.graal.compiler.target.amd64;
+
+import static com.oracle.max.cri.ci.CiValueUtil.*;
+
+import java.util.*;
+
+import com.oracle.max.asm.target.amd64.*;
+import com.oracle.max.cri.ci.*;
+import com.oracle.max.cri.ci.CiTargetMethod.Mark;
+import com.oracle.max.cri.xir.CiXirAssembler.XirMark;
+import com.oracle.max.graal.compiler.*;
+import com.oracle.max.graal.compiler.asm.*;
+import com.oracle.max.graal.compiler.lir.*;
+import com.oracle.max.graal.compiler.util.*;
+
+public class AMD64Call {
+
+    public static class DirectCallOp extends AMD64LIRInstruction implements StandardOp.CallOp {
+        private final Object targetMethod;
+        private final Map<XirMark, Mark> marks;
+
+        public DirectCallOp(Object targetMethod, CiValue result, CiValue[] parameters, LIRDebugInfo info, Map<XirMark, Mark> marks) {
+            super("CALL_DIRECT", new CiValue[] {result}, info, parameters, LIRInstruction.NO_OPERANDS, LIRInstruction.NO_OPERANDS);
+            this.targetMethod = targetMethod;
+            this.marks = marks;
+        }
+
+        @Override
+        public void emitCode(TargetMethodAssembler tasm, AMD64MacroAssembler masm) {
+            callAlignment(tasm, masm);
+            if (marks != null) {
+                marks.put(XirMark.CALLSITE, tasm.recordMark(null, new Mark[0]));
+            }
+            directCall(tasm, masm, targetMethod, info);
+        }
+
+        @Override
+        protected EnumSet<OperandFlag> flagsFor(OperandMode mode, int index) {
+            if (mode == OperandMode.Input) {
+                return EnumSet.of(OperandFlag.Register, OperandFlag.Stack);
+            } else if (mode == OperandMode.Output) {
+                return EnumSet.of(OperandFlag.Register, OperandFlag.Illegal);
+            }
+            throw Util.shouldNotReachHere();
+        }
+    }
+
+    public static class IndirectCallOp extends AMD64LIRInstruction implements StandardOp.CallOp {
+        private final Object targetMethod;
+        private final Map<XirMark, Mark> marks;
+
+        private static CiValue[] concat(CiValue[] parameters, CiValue targetAddress) {
+            CiValue[] result = Arrays.copyOf(parameters, parameters.length + 1);
+            result[result.length - 1] = targetAddress;
+            return result;
+        }
+
+        public IndirectCallOp(Object targetMethod, CiValue result, CiValue[] parameters, CiValue targetAddress, LIRDebugInfo info, Map<XirMark, Mark> marks) {
+            super("CALL_INDIRECT", new CiValue[] {result}, info, concat(parameters, targetAddress), LIRInstruction.NO_OPERANDS, LIRInstruction.NO_OPERANDS);
+            this.targetMethod = targetMethod;
+            this.marks = marks;
+        }
+
+        private CiValue targetAddress() {
+            return input(inputs.length - 1);
+        }
+
+        @Override
+        public void emitCode(TargetMethodAssembler tasm, AMD64MacroAssembler masm) {
+            callAlignment(tasm, masm);
+            if (marks != null) {
+                marks.put(XirMark.CALLSITE, tasm.recordMark(null, new Mark[0]));
+            }
+            indirectCall(tasm, masm, asRegister(targetAddress()), targetMethod, info);
+        }
+
+        @Override
+        protected EnumSet<OperandFlag> flagsFor(OperandMode mode, int index) {
+            if (mode == OperandMode.Input) {
+                return EnumSet.of(OperandFlag.Register, OperandFlag.Stack);
+            } else if (mode == OperandMode.Output) {
+                return EnumSet.of(OperandFlag.Register, OperandFlag.Illegal);
+            }
+            throw Util.shouldNotReachHere();
+        }
+    }
+
+
+    public static void callAlignment(TargetMethodAssembler tasm, AMD64MacroAssembler masm) {
+        if (GraalOptions.AlignCallsForPatching) {
+            // make sure that the displacement word of the call ends up word aligned
+            int offset = masm.codeBuffer.position();
+            offset += tasm.target.arch.machineCodeCallDisplacementOffset;
+            while (offset++ % tasm.target.wordSize != 0) {
+                masm.nop();
+            }
+        }
+    }
+
+    public static void directCall(TargetMethodAssembler tasm, AMD64MacroAssembler masm, Object target, LIRDebugInfo info) {
+        int before = masm.codeBuffer.position();
+        if (target instanceof CiRuntimeCall) {
+            long maxOffset = tasm.runtime.getMaxCallTargetOffset((CiRuntimeCall) target);
+            if (maxOffset != (int) maxOffset) {
+                // offset might not fit a 32-bit immediate, generate an
+                // indirect call with a 64-bit immediate
+                CiRegister scratch = tasm.frameMap.registerConfig.getScratchRegister();
+                // TODO(cwi): we want to get rid of a generally reserved scratch register.
+                masm.movq(scratch, 0L);
+                masm.call(scratch);
+            } else {
+                masm.call();
+            }
+        } else {
+            masm.call();
+        }
+        int after = masm.codeBuffer.position();
+        tasm.recordDirectCall(before, after, tasm.runtime.asCallTarget(target), info);
+        tasm.recordExceptionHandlers(after, info);
+        masm.ensureUniquePC();
+    }
+
+    public static void directJmp(TargetMethodAssembler tasm, AMD64MacroAssembler masm, Object target) {
+        int before = masm.codeBuffer.position();
+        masm.jmp(0, true);
+        int after = masm.codeBuffer.position();
+        tasm.recordDirectCall(before, after, tasm.runtime.asCallTarget(target), null);
+        masm.ensureUniquePC();
+    }
+
+    public static void indirectCall(TargetMethodAssembler tasm, AMD64MacroAssembler masm, CiRegister dst, Object target, LIRDebugInfo info) {
+        int before = masm.codeBuffer.position();
+        masm.call(dst);
+        int after = masm.codeBuffer.position();
+        tasm.recordIndirectCall(before, after, tasm.runtime.asCallTarget(target), info);
+        tasm.recordExceptionHandlers(after, info);
+        masm.ensureUniquePC();
+    }
+
+    public static void shouldNotReachHere(TargetMethodAssembler tasm, AMD64MacroAssembler masm) {
+        if (GraalOptions.GenAssertionCode) {
+            directCall(tasm, masm, CiRuntimeCall.Debug, null);
+            masm.hlt();
+        }
+    }
+}