JavaScriptCore-7600.1.4.15.12.tar.gz

[apple/javascriptcore.git] / llint / LLIntData.cpp

diff --git a/llint/LLIntData.cpp b/llint/LLIntData.cpp
index 983a7d7067ecf971f01c2699a15db13b9a604f67..5327813f755c2d53ef88e15ade562a467b1f4c8f 100644 (file)
--- a/llint/LLIntData.cpp
+++ b/llint/LLIntData.cpp
@@ -25,46 +25,78 @@
 
 #include "config.h"
 #include "LLIntData.h"
-
-#if ENABLE(LLINT)
-
 #include "BytecodeConventions.h"
 #include "CodeType.h"
 #include "Instruction.h"
-#include "LowLevelInterpreter.h"
+#include "JSScope.h"
+#include "LLIntCLoop.h"
+#include "MaxFrameExtentForSlowPathCall.h"
 #include "Opcode.h"
+#include "PropertyOffset.h"
 
 namespace JSC { namespace LLInt {
 
-Data::Data()
-    : m_exceptionInstructions(new Instruction[maxOpcodeLength + 1])
-    , m_opcodeMap(new Opcode[numOpcodeIDs])
+Instruction* Data::s_exceptionInstructions = 0;
+Opcode Data::s_opcodeMap[numOpcodeIDs] = { };
+
+#if ENABLE(JIT)
+extern "C" void llint_entry(void*);
+#endif
+
+void initialize()
 {
+    Data::s_exceptionInstructions = new Instruction[maxOpcodeLength + 1];
+
+#if !ENABLE(JIT)
+    CLoop::initialize();
+
+#else // ENABLE(JIT)
+    llint_entry(&Data::s_opcodeMap);
+
     for (int i = 0; i < maxOpcodeLength + 1; ++i)
-        m_exceptionInstructions[i].u.pointer = bitwise_cast<void*>(&llint_throw_from_slow_path_trampoline);
-#define OPCODE_ENTRY(opcode, length) m_opcodeMap[opcode] = bitwise_cast<void*>(&llint_##opcode);
-    FOR_EACH_OPCODE_ID(OPCODE_ENTRY);
-#undef OPCODE_ENTRY
+        Data::s_exceptionInstructions[i].u.pointer =
+            LLInt::getCodePtr(llint_throw_from_slow_path_trampoline);
+#endif // ENABLE(JIT)
 }
 
 #if COMPILER(CLANG)
 #pragma clang diagnostic push
 #pragma clang diagnostic ignored "-Wmissing-noreturn"
 #endif
-void Data::performAssertions(JSGlobalData& globalData)
+void Data::performAssertions(VM& vm)
 {
-    UNUSED_PARAM(globalData);
+    UNUSED_PARAM(vm);
     
     // Assertions to match LowLevelInterpreter.asm.  If you change any of this code, be
     // prepared to change LowLevelInterpreter.asm as well!!
-    ASSERT(RegisterFile::CallFrameHeaderSize * 8 == 48);
-    ASSERT(RegisterFile::ArgumentCount * 8 == -48);
-    ASSERT(RegisterFile::CallerFrame * 8 == -40);
-    ASSERT(RegisterFile::Callee * 8 == -32);
-    ASSERT(RegisterFile::ScopeChain * 8 == -24);
-    ASSERT(RegisterFile::ReturnPC * 8 == -16);
-    ASSERT(RegisterFile::CodeBlock * 8 == -8);
-    ASSERT(CallFrame::argumentOffsetIncludingThis(0) == -RegisterFile::CallFrameHeaderSize - 1);
+
+#ifndef NDEBUG
+#if USE(JSVALUE64)
+    const ptrdiff_t PtrSize = 8;
+    const ptrdiff_t CallFrameHeaderSlots = 6;
+#else // USE(JSVALUE64) // i.e. 32-bit version
+    const ptrdiff_t PtrSize = 4;
+    const ptrdiff_t CallFrameHeaderSlots = 5;
+#endif
+    const ptrdiff_t SlotSize = 8;
+#endif
+
+    ASSERT(sizeof(void*) == PtrSize);
+    ASSERT(sizeof(Register) == SlotSize);
+    ASSERT(JSStack::CallFrameHeaderSize == CallFrameHeaderSlots);
+
+    ASSERT(!CallFrame::callerFrameOffset());
+    ASSERT(JSStack::CallerFrameAndPCSize == (PtrSize * 2) / SlotSize);
+    ASSERT(CallFrame::returnPCOffset() == CallFrame::callerFrameOffset() + PtrSize);
+    ASSERT(JSStack::CodeBlock * sizeof(Register) == CallFrame::returnPCOffset() + PtrSize);
+    ASSERT(JSStack::ScopeChain * sizeof(Register) == JSStack::CodeBlock * sizeof(Register) + SlotSize);
+    ASSERT(JSStack::Callee * sizeof(Register) == JSStack::ScopeChain * sizeof(Register) + SlotSize);
+    ASSERT(JSStack::ArgumentCount * sizeof(Register) == JSStack::Callee * sizeof(Register) + SlotSize);
+    ASSERT(JSStack::ThisArgument * sizeof(Register) == JSStack::ArgumentCount * sizeof(Register) + SlotSize);
+    ASSERT(JSStack::CallFrameHeaderSize == JSStack::ThisArgument);
+
+    ASSERT(CallFrame::argumentOffsetIncludingThis(0) == JSStack::ThisArgument);
+
 #if CPU(BIG_ENDIAN)
     ASSERT(OBJECT_OFFSETOF(EncodedValueDescriptor, asBits.tag) == 0);
     ASSERT(OBJECT_OFFSETOF(EncodedValueDescriptor, asBits.payload) == 4);
@@ -73,14 +105,14 @@ void Data::performAssertions(JSGlobalData& globalData)
     ASSERT(OBJECT_OFFSETOF(EncodedValueDescriptor, asBits.payload) == 0);
 #endif
 #if USE(JSVALUE32_64)
-    ASSERT(JSValue::Int32Tag == -1);
-    ASSERT(JSValue::BooleanTag == -2);
-    ASSERT(JSValue::NullTag == -3);
-    ASSERT(JSValue::UndefinedTag == -4);
-    ASSERT(JSValue::CellTag == -5);
-    ASSERT(JSValue::EmptyValueTag == -6);
-    ASSERT(JSValue::DeletedValueTag == -7);
-    ASSERT(JSValue::LowestTag == -7);
+    ASSERT(JSValue::Int32Tag == static_cast<unsigned>(-1));
+    ASSERT(JSValue::BooleanTag == static_cast<unsigned>(-2));
+    ASSERT(JSValue::NullTag == static_cast<unsigned>(-3));
+    ASSERT(JSValue::UndefinedTag == static_cast<unsigned>(-4));
+    ASSERT(JSValue::CellTag == static_cast<unsigned>(-5));
+    ASSERT(JSValue::EmptyValueTag == static_cast<unsigned>(-6));
+    ASSERT(JSValue::DeletedValueTag == static_cast<unsigned>(-7));
+    ASSERT(JSValue::LowestTag == static_cast<unsigned>(-7));
 #else
     ASSERT(TagBitTypeOther == 0x2);
     ASSERT(TagBitBool == 0x4);
@@ -90,42 +122,51 @@ void Data::performAssertions(JSGlobalData& globalData)
     ASSERT(ValueTrue == (TagBitTypeOther | TagBitBool | 1));
     ASSERT(ValueUndefined == (TagBitTypeOther | TagBitUndefined));
     ASSERT(ValueNull == TagBitTypeOther);
+#endif
+#if (CPU(X86_64) && !OS(WINDOWS)) || CPU(ARM64) || !ENABLE(JIT)
+    ASSERT(!maxFrameExtentForSlowPathCall);
+#elif CPU(ARM) || CPU(SH4)
+    ASSERT(maxFrameExtentForSlowPathCall == 24);
+#elif CPU(X86) || CPU(MIPS)
+    ASSERT(maxFrameExtentForSlowPathCall == 40);
+#elif CPU(X86_64) && OS(WINDOWS)
+    ASSERT(maxFrameExtentForSlowPathCall == 64);
 #endif
     ASSERT(StringType == 5);
-    ASSERT(ObjectType == 13);
+    ASSERT(ObjectType == 18);
+    ASSERT(FinalObjectType == 19);
     ASSERT(MasqueradesAsUndefined == 1);
     ASSERT(ImplementsHasInstance == 2);
     ASSERT(ImplementsDefaultHasInstance == 8);
-#if USE(JSVALUE64)
-    ASSERT(&globalData.heap.allocatorForObjectWithoutDestructor(sizeof(JSFinalObject)) - &globalData.heap.firstAllocatorWithoutDestructors() == 1);
-#else
-    ASSERT(&globalData.heap.allocatorForObjectWithoutDestructor(sizeof(JSFinalObject)) - &globalData.heap.firstAllocatorWithoutDestructors() == 3);
-#endif
     ASSERT(FirstConstantRegisterIndex == 0x40000000);
     ASSERT(GlobalCode == 0);
     ASSERT(EvalCode == 1);
     ASSERT(FunctionCode == 2);
+
+    ASSERT(GlobalProperty == 0);
+    ASSERT(GlobalVar == 1);
+    ASSERT(ClosureVar == 2);
+    ASSERT(GlobalPropertyWithVarInjectionChecks == 3);
+    ASSERT(GlobalVarWithVarInjectionChecks == 4);
+    ASSERT(ClosureVarWithVarInjectionChecks == 5);
+    ASSERT(Dynamic == 6);
     
+    ASSERT(ResolveModeAndType::mask == 0xffff);
+
+    ASSERT(MarkedBlock::blockMask == ~static_cast<decltype(MarkedBlock::blockMask)>(0xffff));
+
     // FIXME: make these assertions less horrible.
 #if !ASSERT_DISABLED
     Vector<int> testVector;
     testVector.resize(42);
-    ASSERT(bitwise_cast<size_t*>(&testVector)[0] == 42);
-    ASSERT(bitwise_cast<int**>(&testVector)[1] == testVector.begin());
+    ASSERT(bitwise_cast<uint32_t*>(&testVector)[sizeof(void*)/sizeof(uint32_t) + 1] == 42);
+    ASSERT(bitwise_cast<int**>(&testVector)[0] == testVector.begin());
 #endif
 
-    ASSERT(StringImpl::s_hashFlag8BitBuffer == 64);
+    ASSERT(StringImpl::s_hashFlag8BitBuffer == 32);
 }
 #if COMPILER(CLANG)
 #pragma clang diagnostic pop
 #endif
 
-Data::~Data()
-{
-    delete[] m_exceptionInstructions;
-    delete[] m_opcodeMap;
-}
-
 } } // namespace JSC::LLInt
-
-#endif // ENABLE(LLINT)