--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/graal/GraalCompiler/src/com/sun/c1x/asm/AbstractAssembler.java	Wed Apr 27 11:50:44 2011 +0200
@@ -0,0 +1,230 @@
+/*
+ * Copyright (c) 2009, 2011, 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.sun.c1x.asm;
+
+import java.util.*;
+
+import com.sun.c1x.*;
+import com.sun.c1x.debug.*;
+import com.sun.c1x.ir.*;
+import com.sun.c1x.lir.*;
+import com.sun.c1x.util.*;
+import com.sun.cri.ci.*;
+import com.sun.cri.ci.CiTargetMethod.CodeComment;
+import com.sun.cri.ci.CiTargetMethod.Mark;
+import com.sun.cri.ri.*;
+
+/**
+ * @author Marcelo Cintra
+ * @author Thomas Wuerthinger
+ */
+public abstract class AbstractAssembler {
+
+    public final Buffer codeBuffer;
+    public final CiTarget target;
+    public final CiTargetMethod targetMethod;
+    public List<ExceptionInfo> exceptionInfoList;
+
+    public AbstractAssembler(CiTarget target) {
+        this.target = target;
+        this.targetMethod = new CiTargetMethod();
+        this.codeBuffer = new Buffer(target.arch.byteOrder);
+    }
+
+    public final void bind(Label l) {
+        assert !l.isBound() : "can bind label only once";
+        l.bind(codeBuffer.position());
+        l.patchInstructions(this);
+    }
+
+    public void setFrameSize(int frameSize) {
+        targetMethod.setFrameSize(frameSize);
+    }
+
+    public CiTargetMethod finishTargetMethod(Object name, RiRuntime runtime, int registerRestoreEpilogueOffset, boolean isStub) {
+        // Install code, data and frame size
+        targetMethod.setTargetCode(codeBuffer.close(false), codeBuffer.position());
+        targetMethod.setRegisterRestoreEpilogueOffset(registerRestoreEpilogueOffset);
+
+        // Record exception handlers if they exist
+        if (exceptionInfoList != null) {
+            for (ExceptionInfo ei : exceptionInfoList) {
+                int codeOffset = ei.codeOffset;
+                for (ExceptionHandler handler : ei.exceptionHandlers) {
+                    int entryOffset = handler.entryCodeOffset();
+                    RiType caughtType = handler.handler.catchType();
+                    targetMethod.recordExceptionHandler(codeOffset, ei.bci, handler.scopeCount(), entryOffset, handler.handlerBCI(), caughtType);
+                }
+            }
+        }
+
+        if (C1XOptions.PrintMetrics) {
+            C1XMetrics.TargetMethods++;
+            C1XMetrics.CodeBytesEmitted += targetMethod.targetCodeSize();
+            C1XMetrics.SafepointsEmitted += targetMethod.safepoints.size();
+            C1XMetrics.DirectCallSitesEmitted += targetMethod.directCalls.size();
+            C1XMetrics.IndirectCallSitesEmitted += targetMethod.indirectCalls.size();
+            C1XMetrics.DataPatches += targetMethod.dataReferences.size();
+            C1XMetrics.ExceptionHandlersEmitted += targetMethod.exceptionHandlers.size();
+        }
+
+        if (C1XOptions.PrintAssembly && !TTY.isSuppressed() && !isStub) {
+            Util.printSection("Target Method", Util.SECTION_CHARACTER);
+            TTY.println("Name: " + name);
+            TTY.println("Frame size: " + targetMethod.frameSize());
+            TTY.println("Register size: " + target.arch.registerReferenceMapBitCount);
+
+            if (C1XOptions.PrintCodeBytes) {
+                Util.printSection("Code", Util.SUB_SECTION_CHARACTER);
+                TTY.println("Code: %d bytes", targetMethod.targetCodeSize());
+                Util.printBytes(0L, targetMethod.targetCode(), 0, targetMethod.targetCodeSize(), C1XOptions.PrintAssemblyBytesPerLine);
+            }
+
+            Util.printSection("Disassembly", Util.SUB_SECTION_CHARACTER);
+            String disassembly = runtime.disassemble(targetMethod);
+            TTY.println(disassembly);
+            boolean noDis = disassembly == null || disassembly.length() == 0;
+
+            Util.printSection("Safepoints", Util.SUB_SECTION_CHARACTER);
+            for (CiTargetMethod.Safepoint x : targetMethod.safepoints) {
+                TTY.println(x.toString());
+                if (noDis && x.debugInfo != null) {
+                    TTY.println(CiUtil.indent(x.debugInfo.toString(), "  "));
+                }
+            }
+
+            Util.printSection("Direct Call Sites", Util.SUB_SECTION_CHARACTER);
+            for (CiTargetMethod.Call x : targetMethod.directCalls) {
+                TTY.println(x.toString());
+                if (noDis && x.debugInfo != null) {
+                    TTY.println(CiUtil.indent(x.debugInfo.toString(), "  "));
+                }
+            }
+
+            Util.printSection("Indirect Call Sites", Util.SUB_SECTION_CHARACTER);
+            for (CiTargetMethod.Call x : targetMethod.indirectCalls) {
+                TTY.println(x.toString());
+                if (noDis && x.debugInfo != null) {
+                    TTY.println(CiUtil.indent(x.debugInfo.toString(), "  "));
+                }
+            }
+
+            Util.printSection("Data Patches", Util.SUB_SECTION_CHARACTER);
+            for (CiTargetMethod.DataPatch x : targetMethod.dataReferences) {
+                TTY.println(x.toString());
+            }
+
+            Util.printSection("Marks", Util.SUB_SECTION_CHARACTER);
+            for (CiTargetMethod.Mark x : targetMethod.marks) {
+                TTY.println(x.toString());
+            }
+
+            Util.printSection("Exception Handlers", Util.SUB_SECTION_CHARACTER);
+            for (CiTargetMethod.ExceptionHandler x : targetMethod.exceptionHandlers) {
+                TTY.println(x.toString());
+            }
+        }
+
+        return targetMethod;
+    }
+
+    public void recordExceptionHandlers(int pcOffset, LIRDebugInfo info) {
+        if (info != null) {
+            if (info.exceptionHandlers != null) {
+                if (exceptionInfoList == null) {
+                    exceptionInfoList = new ArrayList<ExceptionInfo>(4);
+                }
+                exceptionInfoList.add(new ExceptionInfo(pcOffset, info.exceptionHandlers, info.state.bci));
+            }
+        }
+    }
+
+    public void recordImplicitException(int pcOffset, LIRDebugInfo info) {
+        // record an implicit exception point
+        if (info != null) {
+            targetMethod.recordSafepoint(pcOffset, info.debugInfo());
+            recordExceptionHandlers(pcOffset, info);
+        }
+    }
+
+    protected void recordDirectCall(int posBefore, int posAfter, Object target, LIRDebugInfo info) {
+        CiDebugInfo debugInfo = info != null ? info.debugInfo() : null;
+        targetMethod.recordCall(posBefore, target, debugInfo, true);
+    }
+
+    protected void recordIndirectCall(int posBefore, int posAfter, Object target, LIRDebugInfo info) {
+        CiDebugInfo debugInfo = info != null ? info.debugInfo() : null;
+        targetMethod.recordCall(posBefore, target, debugInfo, false);
+    }
+
+    public void recordSafepoint(int pos, LIRDebugInfo info) {
+        // safepoints always need debug info
+        CiDebugInfo debugInfo = info.debugInfo();
+        targetMethod.recordSafepoint(pos, debugInfo);
+    }
+
+    public CiAddress recordDataReferenceInCode(CiConstant data) {
+        assert data != null;
+
+        int pos = codeBuffer.position();
+
+        if (C1XOptions.TraceRelocation) {
+            TTY.print("Data reference in code: pos = %d, data = %s", pos, data.toString());
+        }
+
+        targetMethod.recordDataReference(pos, data);
+        return CiAddress.Placeholder;
+    }
+
+    public Mark recordMark(Object id, Mark[] references) {
+        return targetMethod.recordMark(codeBuffer.position(), id, references);
+    }
+
+    public abstract void nop();
+
+    public abstract void nullCheck(CiRegister r);
+
+    public abstract void align(int codeEntryAlignment);
+
+    public abstract void patchJumpTarget(int branch, int target);
+
+    public final void emitByte(int x) {
+        codeBuffer.emitByte(x);
+    }
+
+    public final void emitShort(int x) {
+        codeBuffer.emitShort(x);
+    }
+
+    public final void emitInt(int x) {
+        codeBuffer.emitInt(x);
+    }
+
+    public final void emitLong(long x) {
+        codeBuffer.emitLong(x);
+    }
+
+    public void blockComment(String s) {
+        targetMethod.addAnnotation(new CodeComment(codeBuffer.position(), s));
+    }
+}