--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.lir/src/org/graalvm/compiler/lir/framemap/FrameMapBuilderImpl.java	Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,154 @@
+/*
+ * Copyright (c) 2014, 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.
+ */
+package org.graalvm.compiler.lir.framemap;
+
+import static org.graalvm.compiler.lir.LIRValueUtil.isVirtualStackSlot;
+
+import java.util.ArrayList;
+import java.util.BitSet;
+import java.util.EnumSet;
+import java.util.List;
+
+import org.graalvm.compiler.core.common.LIRKind;
+import org.graalvm.compiler.core.common.cfg.AbstractBlockBase;
+import org.graalvm.compiler.debug.DebugContext;
+import org.graalvm.compiler.debug.GraalError;
+import org.graalvm.compiler.lir.InstructionValueConsumer;
+import org.graalvm.compiler.lir.LIR;
+import org.graalvm.compiler.lir.LIRInstruction;
+import org.graalvm.compiler.lir.LIRInstruction.OperandFlag;
+import org.graalvm.compiler.lir.LIRInstruction.OperandMode;
+import org.graalvm.compiler.lir.VirtualStackSlot;
+import org.graalvm.compiler.lir.gen.LIRGenerationResult;
+
+import jdk.vm.ci.code.CallingConvention;
+import jdk.vm.ci.code.CodeCacheProvider;
+import jdk.vm.ci.code.RegisterConfig;
+import jdk.vm.ci.meta.JavaKind;
+import jdk.vm.ci.meta.Value;
+import jdk.vm.ci.meta.ValueKind;
+
+/**
+ * A FrameMapBuilder that records allocation.
+ */
+public class FrameMapBuilderImpl extends FrameMapBuilderTool {
+
+    private final RegisterConfig registerConfig;
+    private final CodeCacheProvider codeCache;
+    private final FrameMap frameMap;
+    private final List<VirtualStackSlot> stackSlots;
+    private final List<CallingConvention> calls;
+    private int numStackSlots;
+
+    public FrameMapBuilderImpl(FrameMap frameMap, CodeCacheProvider codeCache, RegisterConfig registerConfig) {
+        assert registerConfig != null : "No register config!";
+        this.registerConfig = registerConfig == null ? codeCache.getRegisterConfig() : registerConfig;
+        this.codeCache = codeCache;
+        this.frameMap = frameMap;
+        this.stackSlots = new ArrayList<>();
+        this.calls = new ArrayList<>();
+        this.numStackSlots = 0;
+    }
+
+    @Override
+    public VirtualStackSlot allocateSpillSlot(ValueKind<?> kind) {
+        SimpleVirtualStackSlot slot = new SimpleVirtualStackSlot(numStackSlots++, kind);
+        stackSlots.add(slot);
+        return slot;
+    }
+
+    @Override
+    public VirtualStackSlot allocateStackSlots(int slots, BitSet objects, List<VirtualStackSlot> outObjectStackSlots) {
+        if (slots == 0) {
+            return null;
+        }
+        if (outObjectStackSlots != null) {
+            throw GraalError.unimplemented();
+        }
+        VirtualStackSlotRange slot = new VirtualStackSlotRange(numStackSlots++, slots, objects, LIRKind.fromJavaKind(frameMap.getTarget().arch, JavaKind.Object));
+        stackSlots.add(slot);
+        return slot;
+    }
+
+    @Override
+    public RegisterConfig getRegisterConfig() {
+        return registerConfig;
+    }
+
+    @Override
+    public CodeCacheProvider getCodeCache() {
+        return codeCache;
+    }
+
+    @Override
+    public FrameMap getFrameMap() {
+        return frameMap;
+    }
+
+    @Override
+    public int getNumberOfStackSlots() {
+        return numStackSlots;
+    }
+
+    @Override
+    public void callsMethod(CallingConvention cc) {
+        calls.add(cc);
+    }
+
+    @Override
+    @SuppressWarnings("try")
+    public FrameMap buildFrameMap(LIRGenerationResult res) {
+        DebugContext debug = res.getLIR().getDebug();
+        if (debug.areScopesEnabled()) {
+            verifyStackSlotAllocation(res);
+        }
+        for (CallingConvention cc : calls) {
+            frameMap.callsMethod(cc);
+        }
+        frameMap.finish();
+        return frameMap;
+    }
+
+    private static void verifyStackSlotAllocation(LIRGenerationResult res) {
+        LIR lir = res.getLIR();
+        InstructionValueConsumer verifySlots = (LIRInstruction op, Value value, OperandMode mode, EnumSet<OperandFlag> flags) -> {
+            assert !isVirtualStackSlot(value) : String.format("Instruction %s contains a virtual stack slot %s", op, value);
+        };
+        for (AbstractBlockBase<?> block : lir.getControlFlowGraph().getBlocks()) {
+            lir.getLIRforBlock(block).forEach(op -> {
+                op.visitEachInput(verifySlots);
+                op.visitEachAlive(verifySlots);
+                op.visitEachState(verifySlots);
+
+                op.visitEachTemp(verifySlots);
+                op.visitEachOutput(verifySlots);
+            });
+        }
+    }
+
+    @Override
+    public List<VirtualStackSlot> getStackSlots() {
+        return stackSlots;
+    }
+
+}