Imported QtWebKit TP3 (git b57bc6801f1876c3220d5a4bfea33d620d477443)

Change-Id: I3b1d8a2808782c9f34d50240000e20cb38d3680f
Reviewed-by: Konstantin Tokarev <annulen@yandex.ru>

1 files changed, 138 insertions, 0 deletions

diff --git a/Source/JavaScriptCore/ftl/FTLExitValue.cpp b/Source/JavaScriptCore/ftl/FTLExitValue.cpp
new file mode 100644
index 000000000..7004b9bdb
--- /dev/null
+++ b/Source/JavaScriptCore/ftl/FTLExitValue.cpp
@@ -0,0 +1,138 @@
+/*
+ * Copyright (C) 2013-2015 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. 
+ */
+
+#include "config.h"
+#include "FTLExitValue.h"
+
+#if ENABLE(FTL_JIT)
+
+#include "FTLExitTimeObjectMaterialization.h"
+#include "JSCInlines.h"
+#include "TrackedReferences.h"
+
+namespace JSC { namespace FTL {
+
+ExitValue ExitValue::materializeNewObject(ExitTimeObjectMaterialization* data)
+{
+    ExitValue result;
+    result.m_kind = ExitValueMaterializeNewObject;
+    result.u.newObjectMaterializationData = data;
+    return result;
+}
+
+ExitValue ExitValue::withLocalsOffset(int offset) const
+{
+    if (!isInJSStackSomehow())
+        return *this;
+    if (!virtualRegister().isLocal())
+        return *this;
+    return withVirtualRegister(virtualRegister() + offset);
+}
+
+DataFormat ExitValue::dataFormat() const
+{
+    switch (kind()) {
+    case InvalidExitValue:
+        RELEASE_ASSERT_NOT_REACHED();
+        return DataFormatNone;
+            
+    case ExitValueDead:
+    case ExitValueConstant:
+    case ExitValueInJSStack:
+    case ExitValueMaterializeNewObject:
+        return DataFormatJS;
+            
+    case ExitValueArgument:
+        return exitArgument().format();
+            
+    case ExitValueInJSStackAsInt32:
+        return DataFormatInt32;
+            
+    case ExitValueInJSStackAsInt52:
+        return DataFormatInt52;
+            
+    case ExitValueInJSStackAsDouble:
+        return DataFormatDouble;
+            
+    case ExitValueRecovery:
+        return recoveryFormat();
+    }
+        
+    RELEASE_ASSERT_NOT_REACHED();
+}
+
+void ExitValue::dumpInContext(PrintStream& out, DumpContext* context) const
+{
+    switch (kind()) {
+    case InvalidExitValue:
+        out.print("Invalid");
+        return;
+    case ExitValueDead:
+        out.print("Dead");
+        return;
+    case ExitValueArgument:
+        out.print("Argument(", exitArgument(), ")");
+        return;
+    case ExitValueConstant:
+        out.print("Constant(", inContext(constant(), context), ")");
+        return;
+    case ExitValueInJSStack:
+        out.print("InJSStack:", virtualRegister());
+        return;
+    case ExitValueInJSStackAsInt32:
+        out.print("InJSStackAsInt32:", virtualRegister());
+        return;
+    case ExitValueInJSStackAsInt52:
+        out.print("InJSStackAsInt52:", virtualRegister());
+        return;
+    case ExitValueInJSStackAsDouble:
+        out.print("InJSStackAsDouble:", virtualRegister());
+        return;
+    case ExitValueRecovery:
+        out.print("Recovery(", recoveryOpcode(), ", arg", leftRecoveryArgument(), ", arg", rightRecoveryArgument(), ", ", recoveryFormat(), ")");
+        return;
+    case ExitValueMaterializeNewObject:
+        out.print("Materialize(", WTF::RawPointer(objectMaterialization()), ")");
+        return;
+    }
+    
+    RELEASE_ASSERT_NOT_REACHED();
+}
+
+void ExitValue::dump(PrintStream& out) const
+{
+    dumpInContext(out, 0);
+}
+
+void ExitValue::validateReferences(const TrackedReferences& trackedReferences) const
+{
+    if (isConstant())
+        trackedReferences.check(constant());
+}
+
+} } // namespace JSC::FTL
+
+#endif // ENABLE(FTL_JIT)
+