Imported WebKit commit 2ea9d364d0f6efa8fa64acf19f451504c59be0e4 (http://svn.webkit.org/repository/webkit/trunk@104285)

1 files changed, 199 insertions, 0 deletions

diff --git a/Source/JavaScriptCore/dfg/DFGOperations.h b/Source/JavaScriptCore/dfg/DFGOperations.h
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+++ b/Source/JavaScriptCore/dfg/DFGOperations.h
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+/*
+ * 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. 
+ */
+
+#ifndef DFGOperations_h
+#define DFGOperations_h
+
+#if ENABLE(DFG_JIT)
+
+#include <dfg/DFGJITCompiler.h>
+
+namespace JSC {
+
+struct GlobalResolveInfo;
+
+namespace DFG {
+
+enum PutKind { Direct, NotDirect };
+
+extern "C" {
+
+#if CALLING_CONVENTION_IS_STDCALL
+#define DFG_OPERATION CDECL
+#else
+#define DFG_OPERATION
+#endif
+
+// These typedefs provide typechecking when generating calls out to helper routines;
+// this helps prevent calling a helper routine with the wrong arguments!
+/*
+    Key:
+    V: void
+    J: JSValue
+    P: pointer (void*)
+    C: JSCell*
+    A: JSArray*
+    S: size_t
+    Z: int32_t
+    D: double
+    I: Identifier*
+    G: GlobalResolveInfo*
+*/
+typedef int32_t DFG_OPERATION (*Z_DFGOperation_D)(double);
+typedef JSCell* DFG_OPERATION (*C_DFGOperation_E)(ExecState*);
+typedef JSCell* DFG_OPERATION (*C_DFGOperation_EC)(ExecState*, JSCell*);
+typedef JSCell* DFG_OPERATION (*C_DFGOperation_ECC)(ExecState*, JSCell*, JSCell*);
+typedef EncodedJSValue DFG_OPERATION (*J_DFGOperation_EA)(ExecState*, JSArray*);
+typedef EncodedJSValue DFG_OPERATION (*J_DFGOperation_EJA)(ExecState*, EncodedJSValue, JSArray*);
+typedef EncodedJSValue DFG_OPERATION (*J_DFGOperation_ECJ)(ExecState*, JSCell*, EncodedJSValue);
+typedef EncodedJSValue DFG_OPERATION (*J_DFGOperation_EJJ)(ExecState*, EncodedJSValue, EncodedJSValue);
+typedef EncodedJSValue DFG_OPERATION (*J_DFGOperation_EJ)(ExecState*, EncodedJSValue);
+typedef EncodedJSValue DFG_OPERATION (*J_DFGOperation_EJP)(ExecState*, EncodedJSValue, void*);
+typedef EncodedJSValue DFG_OPERATION (*J_DFGOperation_ECI)(ExecState*, JSCell*, Identifier*);
+typedef EncodedJSValue DFG_OPERATION (*J_DFGOperation_EJI)(ExecState*, EncodedJSValue, Identifier*);
+typedef EncodedJSValue DFG_OPERATION (*J_DFGOperation_EP)(ExecState*, void*);
+typedef EncodedJSValue DFG_OPERATION (*J_DFGOperation_EPP)(ExecState*, void*, void*);
+typedef EncodedJSValue DFG_OPERATION (*J_DFGOperation_EGI)(ExecState*, GlobalResolveInfo*, Identifier*);
+typedef EncodedJSValue DFG_OPERATION (*J_DFGOperation_EPS)(ExecState*, void*, size_t);
+typedef EncodedJSValue DFG_OPERATION (*J_DFGOperation_ESS)(ExecState*, size_t, size_t);
+typedef EncodedJSValue DFG_OPERATION (*J_DFGOperation_EI)(ExecState*, Identifier*);
+typedef size_t DFG_OPERATION (*S_DFGOperation_EJ)(ExecState*, EncodedJSValue);
+typedef size_t DFG_OPERATION (*S_DFGOperation_EJJ)(ExecState*, EncodedJSValue, EncodedJSValue);
+typedef void DFG_OPERATION (*V_DFGOperation_EJJJ)(ExecState*, EncodedJSValue, EncodedJSValue, EncodedJSValue);
+typedef void DFG_OPERATION (*V_DFGOperation_ECJJ)(ExecState*, JSCell*, EncodedJSValue, EncodedJSValue);
+typedef void DFG_OPERATION (*V_DFGOperation_EJPP)(ExecState*, EncodedJSValue, EncodedJSValue, void*);
+typedef void DFG_OPERATION (*V_DFGOperation_EJCI)(ExecState*, EncodedJSValue, JSCell*, Identifier*);
+typedef void DFG_OPERATION (*V_DFGOperation_EPZJ)(ExecState*, void*, int32_t, EncodedJSValue);
+typedef void DFG_OPERATION (*V_DFGOperation_EAZJ)(ExecState*, JSArray*, int32_t, EncodedJSValue);
+typedef double DFG_OPERATION (*D_DFGOperation_DD)(double, double);
+typedef double DFG_OPERATION (*D_DFGOperation_EJ)(ExecState*, EncodedJSValue);
+typedef void* DFG_OPERATION (*P_DFGOperation_E)(ExecState*);
+
+// These routines are provide callbacks out to C++ implementations of operations too complex to JIT.
+JSCell* DFG_OPERATION operationNewObject(ExecState*);
+JSCell* DFG_OPERATION operationCreateThis(ExecState*, JSCell* encodedOp1);
+JSCell* DFG_OPERATION operationCreateThisInlined(ExecState*, JSCell* encodedOp1, JSCell* constructor);
+EncodedJSValue DFG_OPERATION operationConvertThis(ExecState*, EncodedJSValue encodedOp1);
+EncodedJSValue DFG_OPERATION operationValueAdd(ExecState*, EncodedJSValue encodedOp1, EncodedJSValue encodedOp2);
+EncodedJSValue DFG_OPERATION operationValueAddNotNumber(ExecState*, EncodedJSValue encodedOp1, EncodedJSValue encodedOp2);
+EncodedJSValue DFG_OPERATION operationGetByVal(ExecState*, EncodedJSValue encodedBase, EncodedJSValue encodedProperty);
+EncodedJSValue DFG_OPERATION operationGetByValCell(ExecState*, JSCell*, EncodedJSValue encodedProperty);
+EncodedJSValue DFG_OPERATION operationGetById(ExecState*, EncodedJSValue, Identifier*);
+EncodedJSValue DFG_OPERATION operationGetByIdBuildList(ExecState*, EncodedJSValue, Identifier*);
+EncodedJSValue DFG_OPERATION operationGetByIdProtoBuildList(ExecState*, EncodedJSValue, Identifier*);
+EncodedJSValue DFG_OPERATION operationGetByIdOptimize(ExecState*, EncodedJSValue, Identifier*);
+EncodedJSValue DFG_OPERATION operationGetMethodOptimize(ExecState*, EncodedJSValue, Identifier*);
+EncodedJSValue DFG_OPERATION operationResolve(ExecState*, Identifier*);
+EncodedJSValue DFG_OPERATION operationResolveBase(ExecState*, Identifier*);
+EncodedJSValue DFG_OPERATION operationResolveBaseStrictPut(ExecState*, Identifier*);
+EncodedJSValue DFG_OPERATION operationResolveGlobal(ExecState*, GlobalResolveInfo*, Identifier*);
+EncodedJSValue DFG_OPERATION operationToPrimitive(ExecState*, EncodedJSValue);
+EncodedJSValue DFG_OPERATION operationStrCat(ExecState*, void* start, size_t);
+EncodedJSValue DFG_OPERATION operationNewArray(ExecState*, void* start, size_t);
+EncodedJSValue DFG_OPERATION operationNewArrayBuffer(ExecState*, size_t, size_t);
+EncodedJSValue DFG_OPERATION operationNewRegexp(ExecState*, void*);
+void DFG_OPERATION operationPutByValStrict(ExecState*, EncodedJSValue encodedBase, EncodedJSValue encodedProperty, EncodedJSValue encodedValue);
+void DFG_OPERATION operationPutByValNonStrict(ExecState*, EncodedJSValue encodedBase, EncodedJSValue encodedProperty, EncodedJSValue encodedValue);
+void DFG_OPERATION operationPutByValCellStrict(ExecState*, JSCell*, EncodedJSValue encodedProperty, EncodedJSValue encodedValue);
+void DFG_OPERATION operationPutByValCellNonStrict(ExecState*, JSCell*, EncodedJSValue encodedProperty, EncodedJSValue encodedValue);
+void DFG_OPERATION operationPutByValBeyondArrayBounds(ExecState*, JSArray*, int32_t index, EncodedJSValue encodedValue);
+EncodedJSValue DFG_OPERATION operationArrayPush(ExecState*, EncodedJSValue encodedValue, JSArray*);
+EncodedJSValue DFG_OPERATION operationArrayPop(ExecState*, JSArray*);
+void DFG_OPERATION operationPutByIdStrict(ExecState*, EncodedJSValue encodedValue, JSCell* base, Identifier*);
+void DFG_OPERATION operationPutByIdNonStrict(ExecState*, EncodedJSValue encodedValue, JSCell* base, Identifier*);
+void DFG_OPERATION operationPutByIdDirectStrict(ExecState*, EncodedJSValue encodedValue, JSCell* base, Identifier*);
+void DFG_OPERATION operationPutByIdDirectNonStrict(ExecState*, EncodedJSValue encodedValue, JSCell* base, Identifier*);
+void DFG_OPERATION operationPutByIdStrictOptimize(ExecState*, EncodedJSValue encodedValue, JSCell* base, Identifier*);
+void DFG_OPERATION operationPutByIdNonStrictOptimize(ExecState*, EncodedJSValue encodedValue, JSCell* base, Identifier*);
+void DFG_OPERATION operationPutByIdDirectStrictOptimize(ExecState*, EncodedJSValue encodedValue, JSCell* base, Identifier*);
+void DFG_OPERATION operationPutByIdDirectNonStrictOptimize(ExecState*, EncodedJSValue encodedValue, JSCell* base, Identifier*);
+// These comparisons return a boolean within a size_t such that the value is zero extended to fill the register.
+size_t DFG_OPERATION operationCompareLess(ExecState*, EncodedJSValue encodedOp1, EncodedJSValue encodedOp2);
+size_t DFG_OPERATION operationCompareLessEq(ExecState*, EncodedJSValue encodedOp1, EncodedJSValue encodedOp2);
+size_t DFG_OPERATION operationCompareGreater(ExecState*, EncodedJSValue encodedOp1, EncodedJSValue encodedOp2);
+size_t DFG_OPERATION operationCompareGreaterEq(ExecState*, EncodedJSValue encodedOp1, EncodedJSValue encodedOp2);
+size_t DFG_OPERATION operationCompareEq(ExecState*, EncodedJSValue encodedOp1, EncodedJSValue encodedOp2);
+size_t DFG_OPERATION operationCompareStrictEqCell(ExecState*, EncodedJSValue encodedOp1, EncodedJSValue encodedOp2);
+size_t DFG_OPERATION operationCompareStrictEq(ExecState*, EncodedJSValue encodedOp1, EncodedJSValue encodedOp2);
+void* DFG_OPERATION operationVirtualCall(ExecState*);
+void* DFG_OPERATION operationLinkCall(ExecState*);
+void* DFG_OPERATION operationVirtualConstruct(ExecState*);
+void* DFG_OPERATION operationLinkConstruct(ExecState*);
+
+// This method is used to lookup an exception hander, keyed by faultLocation, which is
+// the return location from one of the calls out to one of the helper operations above.
+struct DFGHandler {
+    DFGHandler(ExecState* exec, void* handler)
+    {
+        u.s.exec = exec;
+        u.s.handler = handler;
+    }
+
+#if !CPU(X86_64)
+    uint64_t encoded()
+    {
+        COMPILE_ASSERT(sizeof(Union) == sizeof(uint64_t), DFGHandler_Union_is_64bit);
+        return u.encoded;
+    }
+#endif
+
+    union Union {
+        struct Struct {
+            ExecState* exec;
+            void* handler;
+        } s;
+        uint64_t encoded;
+    } u;
+};
+#if CPU(X86_64)
+typedef DFGHandler DFGHandlerEncoded;
+inline DFGHandlerEncoded dfgHandlerEncoded(ExecState* exec, void* handler)
+{
+    return DFGHandler(exec, handler);
+}
+#else
+typedef uint64_t DFGHandlerEncoded;
+inline DFGHandlerEncoded dfgHandlerEncoded(ExecState* exec, void* handler)
+{
+    return DFGHandler(exec, handler).encoded();
+}
+#endif
+DFGHandlerEncoded DFG_OPERATION lookupExceptionHandler(ExecState*, uint32_t);
+
+// These operations implement the implicitly called ToInt32, ToNumber, and ToBoolean conversions from ES5.
+double DFG_OPERATION dfgConvertJSValueToNumber(ExecState*, EncodedJSValue);
+// This conversion returns an int32_t within a size_t such that the value is zero extended to fill the register.
+size_t DFG_OPERATION dfgConvertJSValueToInt32(ExecState*, EncodedJSValue);
+size_t DFG_OPERATION dfgConvertJSValueToBoolean(ExecState*, EncodedJSValue);
+
+#if DFG_ENABLE(VERBOSE_SPECULATION_FAILURE)
+void DFG_OPERATION debugOperationPrintSpeculationFailure(ExecState*, void*);
+#endif
+
+} // extern "C"
+} } // namespace JSC::DFG
+
+#endif
+#endif