--- /dev/null
+/*
+ * Copyright (C) 2011 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 "DFGOperations.h"
+
+#if ENABLE(DFG_JIT)
+
+#include "CodeBlock.h"
+#include "Interpreter.h"
+#include "JSByteArray.h"
+#include "JSGlobalData.h"
+#include "Operations.h"
+
+namespace JSC { namespace DFG {
+
+EncodedJSValue operationConvertThis(ExecState* exec, EncodedJSValue encodedOp)
+{
+ return JSValue::encode(JSValue::decode(encodedOp).toThisObject(exec));
+}
+
+EncodedJSValue operationValueAdd(ExecState* exec, EncodedJSValue encodedOp1, EncodedJSValue encodedOp2)
+{
+ JSValue op1 = JSValue::decode(encodedOp1);
+ JSValue op2 = JSValue::decode(encodedOp2);
+
+ if (op1.isInt32() && op2.isInt32()) {
+ int64_t result64 = static_cast<int64_t>(op1.asInt32()) + static_cast<int64_t>(op2.asInt32());
+ int32_t result32 = static_cast<int32_t>(result64);
+ if (LIKELY(result32 == result64))
+ return JSValue::encode(jsNumber(result32));
+ return JSValue::encode(jsNumber((double)result64));
+ }
+
+ double number1;
+ double number2;
+ if (op1.getNumber(number1) && op2.getNumber(number2))
+ return JSValue::encode(jsNumber(number1 + number2));
+
+ return JSValue::encode(jsAddSlowCase(exec, op1, op2));
+}
+
+EncodedJSValue operationGetByVal(ExecState* exec, EncodedJSValue encodedBase, EncodedJSValue encodedProperty)
+{
+ JSValue baseValue = JSValue::decode(encodedBase);
+ JSValue property = JSValue::decode(encodedProperty);
+
+ if (LIKELY(baseValue.isCell())) {
+ JSCell* base = baseValue.asCell();
+
+ if (property.isUInt32()) {
+ JSGlobalData* globalData = &exec->globalData();
+ uint32_t i = property.asUInt32();
+
+ // FIXME: the JIT used to handle these in compiled code!
+ if (isJSArray(globalData, base) && asArray(base)->canGetIndex(i))
+ return JSValue::encode(asArray(base)->getIndex(i));
+
+ // FIXME: the JITstub used to relink this to an optimized form!
+ if (isJSString(globalData, base) && asString(base)->canGetIndex(i))
+ return JSValue::encode(asString(base)->getIndex(exec, i));
+
+ // FIXME: the JITstub used to relink this to an optimized form!
+ if (isJSByteArray(globalData, base) && asByteArray(base)->canAccessIndex(i))
+ return JSValue::encode(asByteArray(base)->getIndex(exec, i));
+
+ return JSValue::encode(baseValue.get(exec, i));
+ }
+
+ if (property.isString()) {
+ Identifier propertyName(exec, asString(property)->value(exec));
+ PropertySlot slot(base);
+ if (base->fastGetOwnPropertySlot(exec, propertyName, slot))
+ return JSValue::encode(slot.getValue(exec, propertyName));
+ }
+ }
+
+ Identifier ident(exec, property.toString(exec));
+ return JSValue::encode(baseValue.get(exec, ident));
+}
+
+EncodedJSValue operationGetById(ExecState* exec, EncodedJSValue encodedBase, Identifier* identifier)
+{
+ JSValue baseValue = JSValue::decode(encodedBase);
+ PropertySlot slot(baseValue);
+ return JSValue::encode(baseValue.get(exec, *identifier, slot));
+}
+
+template<bool strict>
+ALWAYS_INLINE static void operationPutByValInternal(ExecState* exec, EncodedJSValue encodedBase, EncodedJSValue encodedProperty, EncodedJSValue encodedValue)
+{
+ JSGlobalData* globalData = &exec->globalData();
+
+ JSValue baseValue = JSValue::decode(encodedBase);
+ JSValue property = JSValue::decode(encodedProperty);
+ JSValue value = JSValue::decode(encodedValue);
+
+ if (LIKELY(property.isUInt32())) {
+ uint32_t i = property.asUInt32();
+
+ if (isJSArray(globalData, baseValue)) {
+ JSArray* jsArray = asArray(baseValue);
+ if (jsArray->canSetIndex(i)) {
+ jsArray->setIndex(*globalData, i, value);
+ return;
+ }
+
+ jsArray->JSArray::put(exec, i, value);
+ return;
+ }
+
+ if (isJSByteArray(globalData, baseValue) && asByteArray(baseValue)->canAccessIndex(i)) {
+ JSByteArray* jsByteArray = asByteArray(baseValue);
+ // FIXME: the JITstub used to relink this to an optimized form!
+ if (value.isInt32()) {
+ jsByteArray->setIndex(i, value.asInt32());
+ return;
+ }
+
+ double dValue = 0;
+ if (value.getNumber(dValue)) {
+ jsByteArray->setIndex(i, dValue);
+ return;
+ }
+ }
+
+ baseValue.put(exec, i, value);
+ return;
+ }
+
+ // Don't put to an object if toString throws an exception.
+ Identifier ident(exec, property.toString(exec));
+ if (!globalData->exception) {
+ PutPropertySlot slot(strict);
+ baseValue.put(exec, ident, value, slot);
+ }
+}
+
+void operationPutByValStrict(ExecState* exec, EncodedJSValue encodedBase, EncodedJSValue encodedProperty, EncodedJSValue encodedValue)
+{
+ operationPutByValInternal<true>(exec, encodedBase, encodedProperty, encodedValue);
+}
+
+void operationPutByValNonStrict(ExecState* exec, EncodedJSValue encodedBase, EncodedJSValue encodedProperty, EncodedJSValue encodedValue)
+{
+ operationPutByValInternal<false>(exec, encodedBase, encodedProperty, encodedValue);
+}
+
+void operationPutByIdStrict(ExecState* exec, EncodedJSValue encodedValue, EncodedJSValue encodedBase, Identifier* identifier)
+{
+ PutPropertySlot slot(true);
+ JSValue::decode(encodedBase).put(exec, *identifier, JSValue::decode(encodedValue), slot);
+}
+
+void operationPutByIdNonStrict(ExecState* exec, EncodedJSValue encodedValue, EncodedJSValue encodedBase, Identifier* identifier)
+{
+ PutPropertySlot slot(false);
+ JSValue::decode(encodedBase).put(exec, *identifier, JSValue::decode(encodedValue), slot);
+}
+
+void operationPutByIdDirectStrict(ExecState* exec, EncodedJSValue encodedValue, EncodedJSValue encodedBase, Identifier* identifier)
+{
+ PutPropertySlot slot(true);
+ JSValue::decode(encodedBase).putDirect(exec, *identifier, JSValue::decode(encodedValue), slot);
+}
+
+void operationPutByIdDirectNonStrict(ExecState* exec, EncodedJSValue encodedValue, EncodedJSValue encodedBase, Identifier* identifier)
+{
+ PutPropertySlot slot(false);
+ JSValue::decode(encodedBase).putDirect(exec, *identifier, JSValue::decode(encodedValue), slot);
+}
+
+bool operationCompareLess(ExecState* exec, EncodedJSValue encodedOp1, EncodedJSValue encodedOp2)
+{
+ return jsLess(exec, JSValue::decode(encodedOp1), JSValue::decode(encodedOp2));
+}
+
+bool operationCompareLessEq(ExecState* exec, EncodedJSValue encodedOp1, EncodedJSValue encodedOp2)
+{
+ return jsLessEq(exec, JSValue::decode(encodedOp1), JSValue::decode(encodedOp2));
+}
+
+bool operationCompareEq(ExecState* exec, EncodedJSValue encodedOp1, EncodedJSValue encodedOp2)
+{
+ return JSValue::equal(exec, JSValue::decode(encodedOp1), JSValue::decode(encodedOp2));
+}
+
+bool operationCompareStrictEq(ExecState* exec, EncodedJSValue encodedOp1, EncodedJSValue encodedOp2)
+{
+ return JSValue::strictEqual(exec, JSValue::decode(encodedOp1), JSValue::decode(encodedOp2));
+}
+
+DFGHandler lookupExceptionHandler(ExecState* exec, ReturnAddressPtr faultLocation)
+{
+ JSValue exceptionValue = exec->exception();
+ ASSERT(exceptionValue);
+
+ unsigned vPCIndex = exec->codeBlock()->bytecodeOffset(faultLocation);
+ HandlerInfo* handler = exec->globalData().interpreter->throwException(exec, exceptionValue, vPCIndex);
+
+ void* catchRoutine = handler ? handler->nativeCode.executableAddress() : (void*)ctiOpThrowNotCaught;
+ ASSERT(catchRoutine);
+ return DFGHandler(exec, catchRoutine);
+}
+
+double dfgConvertJSValueToNumber(ExecState* exec, EncodedJSValue value)
+{
+ return JSValue::decode(value).toNumber(exec);
+}
+
+int32_t dfgConvertJSValueToInt32(ExecState* exec, EncodedJSValue value)
+{
+ return JSValue::decode(value).toInt32(exec);
+}
+
+bool dfgConvertJSValueToBoolean(ExecState* exec, EncodedJSValue encodedOp)
+{
+ return JSValue::decode(encodedOp).toBoolean(exec);
+}
+
+} } // namespace JSC::DFG
+
+#endif
projects / apple / javascriptcore.git / blobdiff