1 files changed, 102 insertions, 0 deletions
diff --git a/third_party/webkit/PerformanceTests/ARES-6/Air/stack_slot.js b/third_party/webkit/PerformanceTests/ARES-6/Air/stack_slot.js
new file mode 100644
index 0000000000..dafd87a5d2
--- /dev/null
+++ b/third_party/webkit/PerformanceTests/ARES-6/Air/stack_slot.js
@@ -0,0 +1,102 @@
+/*
+ * Copyright (C) 2016 Apple Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
+ */
+"use strict";
+
+class StackSlot {
+    constructor(index, byteSize, kind)
+    {
+        this._index = index;
+        this._byteSize = byteSize;
+        this._kind = kind;
+    }
+    
+    get byteSize() { return this._byteSize; }
+    get kind() { return this._kind; }
+    
+    get isLocked() { return this._kind == Locked; }
+    get isSpill() { return this._kind == Spill; }
+    
+    get index() { return this._index; }
+
+    ensureSize(size)
+    {
+        if (this._offsetFromFP)
+            throw new Error("Stack slot already allocated");
+        this._byteSize = Math.max(this._byteSize, size);
+    }
+    
+    get alignment()
+    {
+        if (this._byteSize <= 1)
+            return 1;
+        if (this._byteSize <= 2)
+            return 2;
+        if (this._byteSize <= 4)
+            return 4;
+        return 8;
+    }
+    
+    get offsetFromFP() { return this._offsetFromFP; }
+    
+    setOffsetFromFP(value) { this._offsetFromFP = value; }
+    
+    hash()
+    {
+        return ((this._kind == Spill ? 1 : 0) + this._byteSize * 3 + (this._offsetFromFP ? this._offsetFromFP * 7 : 0)) >>> 0;
+    }
+    
+    toString()
+    {
+        return "" + (this.isSpill ? "spill" : "stack") + this._index + "<" + this._byteSize +
+            (this._offsetFromFP ? ", offset = " + this._offsetFromFP : "") + ">";
+    }
+    
+    static extract(arg)
+    {
+        if (arg.isStack)
+            return arg.stackSlot;
+        return null;
+    }
+    
+    static forEachFast(arg, func)
+    {
+        if (!arg.isStack)
+            return;
+        
+        let replacement;
+        if (replacement = func(arg.stackSlot))
+            return Arg.createStack(replacement, this._offset);
+    }
+    
+    static forEach(arg, role, type, width, func)
+    {
+        if (!arg.isStack)
+            return;
+        
+        let replacement;
+        if (replacement = func(arg.stackSlot, role, type, width))
+            return Arg.createStack(replacement, this._offset);
+    }
+}