Initial export.
git-svn-id: http://v8.googlecode.com/svn/trunk@2 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
diff --git a/src/stub-cache-ia32.cc b/src/stub-cache-ia32.cc
new file mode 100644
index 0000000..a0ef7d8
--- /dev/null
+++ b/src/stub-cache-ia32.cc
@@ -0,0 +1,1239 @@
+// Copyright 2006-2008 Google 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:
+//
+// * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+// * 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.
+// * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived
+// from this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "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 THE COPYRIGHT
+// OWNER 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 "v8.h"
+
+#include "ic-inl.h"
+#include "codegen-inl.h"
+#include "stub-cache.h"
+
+namespace v8 { namespace internal {
+
+#define __ masm->
+
+
+static void ProbeTable(MacroAssembler* masm,
+ Code::Flags flags,
+ StubCache::Table table,
+ Register name,
+ Register offset) {
+ ExternalReference key_offset(SCTableReference::keyReference(table));
+ ExternalReference value_offset(SCTableReference::valueReference(table));
+
+ Label miss;
+
+ // Save the offset on the stack.
+ __ push(offset);
+
+ // Check that the key in the entry matches the name.
+ __ cmp(name, Operand::StaticArray(offset, times_2, key_offset));
+ __ j(not_equal, &miss, not_taken);
+
+ // Get the code entry from the cache.
+ __ mov(offset, Operand::StaticArray(offset, times_2, value_offset));
+
+ // Check that the flags match what we're looking for.
+ __ mov(offset, FieldOperand(offset, Code::kFlagsOffset));
+ __ and_(offset, ~Code::kFlagsTypeMask);
+ __ cmp(offset, flags);
+ __ j(not_equal, &miss);
+
+ // Restore offset and re-load code entry from cache.
+ __ pop(offset);
+ __ mov(offset, Operand::StaticArray(offset, times_2, value_offset));
+
+ // Jump to the first instruction in the code stub.
+ __ add(Operand(offset), Immediate(Code::kHeaderSize - kHeapObjectTag));
+ __ jmp(Operand(offset));
+
+ // Miss: Restore offset and fall through.
+ __ bind(&miss);
+ __ pop(offset);
+}
+
+
+void StubCache::GenerateProbe(MacroAssembler* masm,
+ Code::Flags flags,
+ Register receiver,
+ Register name,
+ Register scratch) {
+ Label miss;
+
+ // Make sure that code is valid. The shifting code relies on the
+ // entry size being 8.
+ ASSERT(sizeof(Entry) == 8);
+
+ // Make sure the flags does not name a specific type.
+ ASSERT(Code::ExtractTypeFromFlags(flags) == 0);
+
+ // Make sure that there are no register conflicts.
+ ASSERT(!scratch.is(receiver));
+ ASSERT(!scratch.is(name));
+
+ // Check that the receiver isn't a smi.
+ __ test(receiver, Immediate(kSmiTagMask));
+ __ j(zero, &miss, not_taken);
+
+ // Get the map of the receiver and compute the hash.
+ __ mov(scratch, FieldOperand(receiver, HeapObject::kMapOffset));
+ __ add(scratch, FieldOperand(name, String::kLengthOffset));
+ __ xor_(scratch, flags);
+ __ and_(scratch, (kPrimaryTableSize - 1) << kHeapObjectTagSize);
+
+ // Probe the primary table.
+ ProbeTable(masm, flags, kPrimary, name, scratch);
+
+ // Primary miss: Compute hash for secondary probe.
+ __ sub(scratch, Operand(name));
+ __ add(Operand(scratch), Immediate(flags));
+ __ and_(scratch, (kSecondaryTableSize - 1) << kHeapObjectTagSize);
+
+ // Probe the secondary table.
+ ProbeTable(masm, flags, kSecondary, name, scratch);
+
+ // Cache miss: Fall-through and let caller handle the miss by
+ // entering the runtime system.
+ __ bind(&miss);
+}
+
+
+void StubCompiler::GenerateLoadGlobalFunctionPrototype(MacroAssembler* masm,
+ int index,
+ Register prototype) {
+ // Load the global or builtins object from the current context.
+ __ mov(prototype, Operand(esi, Context::SlotOffset(Context::GLOBAL_INDEX)));
+ // Load the global context from the global or builtins object.
+ __ mov(prototype,
+ FieldOperand(prototype, GlobalObject::kGlobalContextOffset));
+ // Load the function from the global context.
+ __ mov(prototype, Operand(prototype, Context::SlotOffset(index)));
+ // Load the initial map. The global functions all have initial maps.
+ __ mov(prototype,
+ FieldOperand(prototype, JSFunction::kPrototypeOrInitialMapOffset));
+ // Load the prototype from the initial map.
+ __ mov(prototype, FieldOperand(prototype, Map::kPrototypeOffset));
+}
+
+
+void StubCompiler::GenerateLoadArrayLength(MacroAssembler* masm,
+ Register receiver,
+ Register scratch,
+ Label* miss_label) {
+ // Check that the receiver isn't a smi.
+ __ test(receiver, Immediate(kSmiTagMask));
+ __ j(zero, miss_label, not_taken);
+
+ // Check that the object is a JS array.
+ __ mov(scratch, FieldOperand(receiver, HeapObject::kMapOffset));
+ __ movzx_b(scratch, FieldOperand(scratch, Map::kInstanceTypeOffset));
+ __ cmp(scratch, JS_ARRAY_TYPE);
+ __ j(not_equal, miss_label, not_taken);
+
+ // Load length directly from the JS array.
+ __ mov(eax, FieldOperand(receiver, JSArray::kLengthOffset));
+ __ ret(0);
+}
+
+
+void StubCompiler::GenerateLoadShortStringLength(MacroAssembler* masm,
+ Register receiver,
+ Register scratch,
+ Label* miss_label) {
+ // Check that the receiver isn't a smi.
+ __ test(receiver, Immediate(kSmiTagMask));
+ __ j(zero, miss_label, not_taken);
+
+ // Check that the object is a short string.
+ __ mov(scratch, FieldOperand(receiver, HeapObject::kMapOffset));
+ __ movzx_b(scratch, FieldOperand(scratch, Map::kInstanceTypeOffset));
+ __ and_(scratch, kIsNotStringMask | kStringSizeMask);
+ __ cmp(scratch, kStringTag | kShortStringTag);
+ __ j(not_equal, miss_label, not_taken);
+
+ // Load length directly from the string.
+ __ mov(eax, FieldOperand(receiver, String::kLengthOffset));
+ __ shr(eax, String::kShortLengthShift);
+ __ shl(eax, kSmiTagSize);
+ __ ret(0);
+}
+
+void StubCompiler::GenerateLoadMediumStringLength(MacroAssembler* masm,
+ Register receiver,
+ Register scratch,
+ Label* miss_label) {
+ // Check that the receiver isn't a smi.
+ __ test(receiver, Immediate(kSmiTagMask));
+ __ j(zero, miss_label, not_taken);
+
+ // Check that the object is a short string.
+ __ mov(scratch, FieldOperand(receiver, HeapObject::kMapOffset));
+ __ movzx_b(scratch, FieldOperand(scratch, Map::kInstanceTypeOffset));
+ __ and_(scratch, kIsNotStringMask | kStringSizeMask);
+ __ cmp(scratch, kStringTag | kMediumStringTag);
+ __ j(not_equal, miss_label, not_taken);
+
+ // Load length directly from the string.
+ __ mov(eax, FieldOperand(receiver, String::kLengthOffset));
+ __ shr(eax, String::kMediumLengthShift);
+ __ shl(eax, kSmiTagSize);
+ __ ret(0);
+}
+
+
+void StubCompiler::GenerateLoadLongStringLength(MacroAssembler* masm,
+ Register receiver,
+ Register scratch,
+ Label* miss_label) {
+ // Check that the receiver isn't a smi.
+ __ test(receiver, Immediate(kSmiTagMask));
+ __ j(zero, miss_label, not_taken);
+
+ // Check that the object is a short string.
+ __ mov(scratch, FieldOperand(receiver, HeapObject::kMapOffset));
+ __ movzx_b(scratch, FieldOperand(scratch, Map::kInstanceTypeOffset));
+ __ and_(scratch, kIsNotStringMask | kStringSizeMask);
+ __ cmp(scratch, kStringTag | kLongStringTag);
+ __ j(not_equal, miss_label, not_taken);
+
+ // Load length directly from the string.
+ __ mov(eax, FieldOperand(receiver, String::kLengthOffset));
+ __ shr(eax, String::kLongLengthShift);
+ __ shl(eax, kSmiTagSize);
+ __ ret(0);
+}
+
+
+void StubCompiler::GenerateLoadFunctionPrototype(MacroAssembler* masm,
+ Register receiver,
+ Register scratch1,
+ Register scratch2,
+ Label* miss_label) {
+ // Check that the receiver isn't a smi.
+ __ test(receiver, Immediate(kSmiTagMask));
+ __ j(zero, miss_label, not_taken);
+
+ // Check that the receiver is a function.
+ __ mov(scratch1, FieldOperand(receiver, HeapObject::kMapOffset));
+ __ movzx_b(scratch2, FieldOperand(scratch1, Map::kInstanceTypeOffset));
+ __ cmp(scratch2, JS_FUNCTION_TYPE);
+ __ j(not_equal, miss_label, not_taken);
+
+ // Make sure that the function has an instance prototype.
+ Label non_instance;
+ __ movzx_b(scratch2, FieldOperand(scratch1, Map::kBitFieldOffset));
+ __ test(scratch2, Immediate(1 << Map::kHasNonInstancePrototype));
+ __ j(not_zero, &non_instance, not_taken);
+
+ // Get the prototype or initial map from the function.
+ __ mov(scratch1,
+ FieldOperand(receiver, JSFunction::kPrototypeOrInitialMapOffset));
+
+ // If the prototype or initial map is the hole, don't return it and
+ // simply miss the cache instead. This will allow us to allocate a
+ // prototype object on-demand in the runtime system.
+ __ cmp(Operand(scratch1), Immediate(Factory::the_hole_value()));
+ __ j(equal, miss_label, not_taken);
+ __ mov(eax, Operand(scratch1));
+
+ // If the function does not have an initial map, we're done.
+ Label done;
+ __ mov(scratch1, FieldOperand(eax, HeapObject::kMapOffset));
+ __ movzx_b(scratch2, FieldOperand(scratch1, Map::kInstanceTypeOffset));
+ __ cmp(scratch2, MAP_TYPE);
+ __ j(not_equal, &done);
+
+ // Get the prototype from the initial map.
+ __ mov(eax, FieldOperand(eax, Map::kPrototypeOffset));
+
+ // All done: Return the prototype.
+ __ bind(&done);
+ __ ret(0);
+
+ // Non-instance prototype: Fetch prototype from constructor field
+ // in initial map.
+ __ bind(&non_instance);
+ __ mov(eax, FieldOperand(scratch1, Map::kConstructorOffset));
+ __ ret(0);
+}
+
+
+void StubCompiler::GenerateLoadField(MacroAssembler* masm,
+ JSObject* object,
+ JSObject* holder,
+ Register receiver,
+ Register scratch1,
+ Register scratch2,
+ int index,
+ Label* miss_label) {
+ // Check that the receiver isn't a smi.
+ __ test(receiver, Immediate(kSmiTagMask));
+ __ j(zero, miss_label, not_taken);
+
+ // Check that the maps haven't changed.
+ Register reg =
+ __ CheckMaps(object, receiver, holder, scratch1, scratch2, miss_label);
+
+ // Get the properties array of the holder.
+ __ mov(scratch1, FieldOperand(reg, JSObject::kPropertiesOffset));
+
+ // Return the value from the properties array.
+ int offset = index * kPointerSize + Array::kHeaderSize;
+ __ mov(eax, FieldOperand(scratch1, offset));
+ __ ret(0);
+}
+
+
+void StubCompiler::GenerateLoadCallback(MacroAssembler* masm,
+ JSObject* object,
+ JSObject* holder,
+ Register receiver,
+ Register name,
+ Register scratch1,
+ Register scratch2,
+ AccessorInfo* callback,
+ Label* miss_label) {
+ // Check that the receiver isn't a smi.
+ __ test(receiver, Immediate(kSmiTagMask));
+ __ j(zero, miss_label, not_taken);
+
+ // Check that the maps haven't changed.
+ Register reg =
+ __ CheckMaps(object, receiver, holder, scratch1, scratch2, miss_label);
+
+ // Push the arguments on the JS stack of the caller.
+ __ pop(scratch2); // remove return address
+ __ push(receiver); // receiver
+ __ push(Immediate(Handle<AccessorInfo>(callback))); // callback data
+ __ push(name); // name
+ __ push(reg); // holder
+ __ push(scratch2); // restore return address
+
+ // Do tail-call to the C builtin.
+ __ mov(eax, 3); // not counting receiver
+ __ JumpToBuiltin(ExternalReference(IC_Utility(IC::kLoadCallbackProperty)));
+}
+
+
+void StubCompiler::GenerateLoadConstant(MacroAssembler* masm,
+ JSObject* object,
+ JSObject* holder,
+ Register receiver,
+ Register scratch1,
+ Register scratch2,
+ Object* value,
+ Label* miss_label) {
+ // Check that the receiver isn't a smi.
+ __ test(receiver, Immediate(kSmiTagMask));
+ __ j(zero, miss_label, not_taken);
+
+ // Check that the maps haven't changed.
+ Register reg =
+ __ CheckMaps(object, receiver, holder, scratch1, scratch2, miss_label);
+
+ // Return the constant value.
+ __ mov(eax, Handle<Object>(value));
+ __ ret(0);
+}
+
+
+void StubCompiler::GenerateLoadInterceptor(MacroAssembler* masm,
+ JSObject* object,
+ JSObject* holder,
+ Register receiver,
+ Register name,
+ Register scratch1,
+ Register scratch2,
+ Label* miss_label) {
+ // Check that the receiver isn't a smi.
+ __ test(receiver, Immediate(kSmiTagMask));
+ __ j(zero, miss_label, not_taken);
+
+ // Check that the maps haven't changed.
+ Register reg =
+ __ CheckMaps(object, receiver, holder, scratch1, scratch2, miss_label);
+
+ // Push the arguments on the JS stack of the caller.
+ __ pop(scratch2); // remove return address
+ __ push(receiver); // receiver
+ __ push(reg); // holder
+ __ push(name); // name
+ __ push(scratch2); // restore return address
+
+ // Do tail-call to the C builtin.
+ __ mov(eax, 2); // not counting receiver
+ __ JumpToBuiltin(ExternalReference(IC_Utility(IC::kLoadInterceptorProperty)));
+}
+
+
+void StubCompiler::GenerateLoadMiss(MacroAssembler* masm, Code::Kind kind) {
+ ASSERT(kind == Code::LOAD_IC || kind == Code::KEYED_LOAD_IC);
+ Code* code = NULL;
+ if (kind == Code::LOAD_IC) {
+ code = Builtins::builtin(Builtins::LoadIC_Miss);
+ } else {
+ code = Builtins::builtin(Builtins::KeyedLoadIC_Miss);
+ }
+
+ Handle<Code> ic(code);
+ __ jmp(ic, code_target);
+}
+
+
+void StubCompiler::GenerateStoreField(MacroAssembler* masm,
+ JSObject* object,
+ int index,
+ Map* transition,
+ Register receiver_reg,
+ Register name_reg,
+ Register scratch,
+ Label* miss_label) {
+ // Check that the object isn't a smi.
+ __ test(receiver_reg, Immediate(kSmiTagMask));
+ __ j(zero, miss_label, not_taken);
+
+ // Check that the map of the object hasn't changed.
+ __ cmp(FieldOperand(receiver_reg, HeapObject::kMapOffset),
+ Immediate(Handle<Map>(object->map())));
+ __ j(not_equal, miss_label, not_taken);
+
+ // Perform global security token check if needed.
+ if (object->IsJSGlobalObject()) {
+ __ CheckAccessGlobal(receiver_reg, scratch, miss_label);
+ }
+
+ // Stub never generated for non-global objects that require access
+ // checks.
+ ASSERT(object->IsJSGlobalObject() || !object->IsAccessCheckNeeded());
+
+ // Get the properties array (optimistically).
+ __ mov(scratch, FieldOperand(receiver_reg, JSObject::kPropertiesOffset));
+
+ // Perform map transition for the receiver if necessary.
+ if (transition != NULL) {
+ // Update the map of the object; no write barrier updating is
+ // needed because the map is never in new space.
+ __ mov(FieldOperand(receiver_reg, HeapObject::kMapOffset),
+ Immediate(Handle<Map>(transition)));
+ }
+
+ // Write to the properties array.
+ int offset = index * kPointerSize + Array::kHeaderSize;
+ __ mov(FieldOperand(scratch, offset), eax);
+
+ // Update the write barrier for the array address.
+ // Pass the value being stored in the now unused name_reg.
+ __ mov(name_reg, Operand(eax));
+ __ RecordWrite(scratch, offset, name_reg, receiver_reg);
+
+ // Return the value (register eax).
+ __ ret(0);
+}
+
+
+#undef __
+
+#define __ masm()->
+
+
+// TODO(1241006): Avoid having lazy compile stubs specialized by the
+// number of arguments. It is not needed anymore.
+Object* StubCompiler::CompileLazyCompile(Code::Flags flags) {
+ HandleScope scope;
+
+ // Enter an internal frame.
+ __ EnterFrame(StackFrame::INTERNAL);
+
+ // Push a copy of the function onto the stack.
+ __ push(edi);
+
+ __ push(edi); // function is also the parameter to the runtime call
+ __ CallRuntime(Runtime::kLazyCompile, 1);
+ __ pop(edi);
+
+ __ ExitFrame(StackFrame::INTERNAL);
+
+ // Do a tail-call of the compiled function.
+ __ lea(ecx, FieldOperand(eax, Code::kHeaderSize));
+ __ jmp(Operand(ecx));
+
+ return GetCodeWithFlags(flags);
+}
+
+
+Object* CallStubCompiler::CompileCallField(Object* object,
+ JSObject* holder,
+ int index) {
+ // ----------- S t a t e -------------
+ // -----------------------------------
+
+ HandleScope scope;
+ Label miss;
+
+ // Get the receiver from the stack.
+ const int argc = arguments().immediate();
+ __ mov(edx, Operand(esp, (argc + 1) * kPointerSize));
+
+ // Check that the receiver isn't a smi.
+ __ test(edx, Immediate(kSmiTagMask));
+ __ j(zero, &miss, not_taken);
+
+ // Do the right check and compute the holder register.
+ Register reg =
+ __ CheckMaps(JSObject::cast(object), edx, holder, ebx, ecx, &miss);
+
+ // Get the properties array of the holder and get the function from the field.
+ int offset = index * kPointerSize + Array::kHeaderSize;
+ __ mov(edi, FieldOperand(reg, JSObject::kPropertiesOffset));
+ __ mov(edi, FieldOperand(edi, offset));
+
+ // Check that the function really is a function.
+ __ test(edi, Immediate(kSmiTagMask));
+ __ j(zero, &miss, not_taken);
+ __ mov(ebx, FieldOperand(edi, HeapObject::kMapOffset)); // get the map
+ __ movzx_b(ebx, FieldOperand(ebx, Map::kInstanceTypeOffset));
+ __ cmp(ebx, JS_FUNCTION_TYPE);
+ __ j(not_equal, &miss, not_taken);
+
+ // Invoke the function.
+ __ InvokeFunction(edi, arguments(), JUMP_FUNCTION);
+
+ // Handle call cache miss.
+ __ bind(&miss);
+ Handle<Code> ic = ComputeCallMiss(arguments().immediate());
+ __ jmp(ic, code_target);
+
+ // Return the generated code.
+ return GetCode(FIELD);
+}
+
+
+Object* CallStubCompiler::CompileCallConstant(Object* object,
+ JSObject* holder,
+ JSFunction* function,
+ CheckType check) {
+ // ----------- S t a t e -------------
+ // -----------------------------------
+
+ HandleScope scope;
+ Label miss;
+
+ // Get the receiver from the stack.
+ const int argc = arguments().immediate();
+ __ mov(edx, Operand(esp, (argc + 1) * kPointerSize));
+
+ // Check that the receiver isn't a smi.
+ if (check != NUMBER_CHECK) {
+ __ test(edx, Immediate(kSmiTagMask));
+ __ j(zero, &miss, not_taken);
+ }
+
+ switch (check) {
+ case RECEIVER_MAP_CHECK:
+ // Check that the maps haven't changed.
+ __ CheckMaps(JSObject::cast(object), edx, holder, ebx, ecx, &miss);
+ break;
+
+ case STRING_CHECK:
+ // Check that the object is a two-byte string or a symbol.
+ __ mov(ecx, FieldOperand(edx, HeapObject::kMapOffset));
+ __ movzx_b(ecx, FieldOperand(ecx, Map::kInstanceTypeOffset));
+ __ cmp(ecx, FIRST_NONSTRING_TYPE);
+ __ j(above_equal, &miss, not_taken);
+ // Check that the maps starting from the prototype haven't changed.
+ GenerateLoadGlobalFunctionPrototype(masm(),
+ Context::STRING_FUNCTION_INDEX,
+ ecx);
+ __ CheckMaps(JSObject::cast(object->GetPrototype()),
+ ecx, holder, ebx, edx, &miss);
+ break;
+
+ case NUMBER_CHECK: {
+ Label fast;
+ // Check that the object is a smi or a heap number.
+ __ test(edx, Immediate(kSmiTagMask));
+ __ j(zero, &fast, taken);
+ __ mov(ecx, FieldOperand(edx, HeapObject::kMapOffset));
+ __ movzx_b(ecx, FieldOperand(ecx, Map::kInstanceTypeOffset));
+ __ cmp(ecx, HEAP_NUMBER_TYPE);
+ __ j(not_equal, &miss, not_taken);
+ __ bind(&fast);
+ // Check that the maps starting from the prototype haven't changed.
+ GenerateLoadGlobalFunctionPrototype(masm(),
+ Context::NUMBER_FUNCTION_INDEX,
+ ecx);
+ __ CheckMaps(JSObject::cast(object->GetPrototype()),
+ ecx, holder, ebx, edx, &miss);
+ break;
+ }
+
+ case BOOLEAN_CHECK: {
+ Label fast;
+ // Check that the object is a boolean.
+ __ cmp(edx, Factory::true_value());
+ __ j(equal, &fast, taken);
+ __ cmp(edx, Factory::false_value());
+ __ j(not_equal, &miss, not_taken);
+ __ bind(&fast);
+ // Check that the maps starting from the prototype haven't changed.
+ GenerateLoadGlobalFunctionPrototype(masm(),
+ Context::BOOLEAN_FUNCTION_INDEX,
+ ecx);
+ __ CheckMaps(JSObject::cast(object->GetPrototype()),
+ ecx, holder, ebx, edx, &miss);
+ break;
+ }
+
+ case JSARRAY_HAS_FAST_ELEMENTS_CHECK:
+ __ CheckMaps(JSObject::cast(object), edx, holder, ebx, ecx, &miss);
+ // Make sure object->elements()->map() != Heap::dictionary_array_map()
+ // Get the elements array of the object.
+ __ mov(ebx, FieldOperand(edx, JSObject::kElementsOffset));
+ // Check that the object is in fast mode (not dictionary).
+ __ cmp(FieldOperand(ebx, HeapObject::kMapOffset),
+ Immediate(Factory::hash_table_map()));
+ __ j(equal, &miss, not_taken);
+ break;
+
+ default:
+ UNREACHABLE();
+ }
+
+ // Get the function and setup the context.
+ __ mov(Operand(edi), Immediate(Handle<JSFunction>(function)));
+ __ mov(esi, FieldOperand(edi, JSFunction::kContextOffset));
+
+ // Jump to the cached code (tail call).
+ Handle<Code> code(function->code());
+ ParameterCount expected(function->shared()->formal_parameter_count());
+ __ InvokeCode(code, expected, arguments(), code_target, JUMP_FUNCTION);
+
+ // Handle call cache miss.
+ __ bind(&miss);
+ Handle<Code> ic = ComputeCallMiss(arguments().immediate());
+ __ jmp(ic, code_target);
+
+ // Return the generated code.
+ return GetCode(CONSTANT_FUNCTION);
+}
+
+
+Object* CallStubCompiler::CompileCallInterceptor(Object* object,
+ JSObject* holder,
+ String* name) {
+ // ----------- S t a t e -------------
+ // -----------------------------------
+
+ HandleScope scope;
+ Label miss;
+
+ // Get the number of arguments.
+ const int argc = arguments().immediate();
+
+ // Get the receiver from the stack.
+ __ mov(edx, Operand(esp, (argc + 1) * kPointerSize));
+ // Check that the receiver isn't a smi.
+ __ test(edx, Immediate(kSmiTagMask));
+ __ j(zero, &miss, not_taken);
+
+ // Check that maps have not changed and compute the holder register.
+ Register reg =
+ __ CheckMaps(JSObject::cast(object), edx, holder, ebx, ecx, &miss);
+
+ // Enter an internal frame.
+ __ EnterFrame(StackFrame::INTERNAL);
+
+ // Push arguments on the expression stack.
+ __ push(edx); // receiver
+ __ push(reg); // holder
+ __ push(Operand(ebp, (argc + 3) * kPointerSize)); // name
+
+ // Perform call.
+ __ mov(Operand(eax), Immediate(2)); // 2 arguments w/o receiver
+ ExternalReference load_interceptor =
+ ExternalReference(IC_Utility(IC::kLoadInterceptorProperty));
+ __ mov(Operand(ebx), Immediate(load_interceptor));
+
+ CEntryStub stub;
+ __ CallStub(&stub);
+
+ // Move result to edi and restore receiver.
+ __ mov(Operand(edi), eax);
+ __ mov(edx, Operand(ebp, (argc + 2) * kPointerSize)); // receiver
+
+ // Exit frame.
+ __ ExitFrame(StackFrame::INTERNAL);
+
+ // Check that the function really is a function.
+ __ test(edi, Immediate(kSmiTagMask));
+ __ j(zero, &miss, not_taken);
+ __ mov(ebx, FieldOperand(edi, HeapObject::kMapOffset));
+ __ movzx_b(ebx, FieldOperand(ebx, Map::kInstanceTypeOffset));
+ __ cmp(ebx, JS_FUNCTION_TYPE);
+ __ j(not_equal, &miss, not_taken);
+
+ // Invoke the function.
+ __ InvokeFunction(edi, arguments(), JUMP_FUNCTION);
+
+ // Handle load cache miss.
+ __ bind(&miss);
+ Handle<Code> ic = ComputeCallMiss(argc);
+ __ jmp(ic, code_target);
+
+ // Return the generated code.
+ return GetCode(INTERCEPTOR);
+}
+
+
+Object* StoreStubCompiler::CompileStoreField(JSObject* object,
+ int index,
+ Map* transition,
+ String* name) {
+ // ----------- S t a t e -------------
+ // -- eax : value
+ // -- ecx : name
+ // -- esp[0] : return address
+ // -- esp[4] : receiver
+ // -----------------------------------
+
+ HandleScope scope;
+ Label miss;
+
+ // Get the object from the stack.
+ __ mov(ebx, Operand(esp, 1 * kPointerSize));
+
+ // Generate store field code. Trashes the name register.
+ GenerateStoreField(masm(), object, index, transition, ebx, ecx, edx, &miss);
+
+ // Handle store cache miss.
+ __ bind(&miss);
+ __ mov(Operand(ecx), Immediate(Handle<String>(name))); // restore name
+ Handle<Code> ic(Builtins::builtin(Builtins::StoreIC_Miss));
+ __ jmp(ic, code_target);
+
+ // Return the generated code.
+ return GetCode(transition == NULL ? FIELD : MAP_TRANSITION);
+}
+
+
+Object* StoreStubCompiler::CompileStoreCallback(JSObject* object,
+ AccessorInfo* callback,
+ String* name) {
+ // ----------- S t a t e -------------
+ // -- eax : value
+ // -- ecx : name
+ // -- esp[0] : return address
+ // -- esp[4] : receiver
+ // -----------------------------------
+
+ HandleScope scope;
+ Label miss;
+
+ // Get the object from the stack.
+ __ mov(ebx, Operand(esp, 1 * kPointerSize));
+
+ // Check that the object isn't a smi.
+ __ test(ebx, Immediate(kSmiTagMask));
+ __ j(zero, &miss, not_taken);
+
+ // Check that the map of the object hasn't changed.
+ __ cmp(FieldOperand(ebx, HeapObject::kMapOffset),
+ Immediate(Handle<Map>(object->map())));
+ __ j(not_equal, &miss, not_taken);
+
+ // Perform global security token check if needed.
+ if (object->IsJSGlobalObject()) {
+ __ CheckAccessGlobal(ebx, edx, &miss);
+ }
+
+ // Stub never generated for non-global objects that require access
+ // checks.
+ ASSERT(object->IsJSGlobalObject() || !object->IsAccessCheckNeeded());
+
+ __ pop(ebx); // remove the return address
+ __ push(Operand(esp, 0)); // receiver
+ __ push(Immediate(Handle<AccessorInfo>(callback))); // callback info
+ __ push(ecx); // name
+ __ push(eax); // value
+ __ push(ebx); // restore return address
+
+ // Do tail-call to the C builtin.
+ __ mov(eax, 3); // not counting receiver
+ __ JumpToBuiltin(ExternalReference(IC_Utility(IC::kStoreCallbackProperty)));
+
+ // Handle store cache miss.
+ __ bind(&miss);
+ __ mov(Operand(ecx), Immediate(Handle<String>(name))); // restore name
+ Handle<Code> ic(Builtins::builtin(Builtins::StoreIC_Miss));
+ __ jmp(ic, code_target);
+
+ // Return the generated code.
+ return GetCode(CALLBACKS);
+}
+
+
+Object* StoreStubCompiler::CompileStoreInterceptor(JSObject* receiver,
+ String* name) {
+ // ----------- S t a t e -------------
+ // -- eax : value
+ // -- ecx : name
+ // -- esp[0] : return address
+ // -- esp[4] : receiver
+ // -----------------------------------
+
+ HandleScope scope;
+ Label miss;
+
+ // Get the object from the stack.
+ __ mov(ebx, Operand(esp, 1 * kPointerSize));
+
+ // Check that the object isn't a smi.
+ __ test(ebx, Immediate(kSmiTagMask));
+ __ j(zero, &miss, not_taken);
+
+ // Check that the map of the object hasn't changed.
+ __ cmp(FieldOperand(ebx, HeapObject::kMapOffset),
+ Immediate(Handle<Map>(receiver->map())));
+ __ j(not_equal, &miss, not_taken);
+
+ // Perform global security token check if needed.
+ if (receiver->IsJSGlobalObject()) {
+ __ CheckAccessGlobal(ebx, edx, &miss);
+ }
+
+ // Stub never generated for non-global objects that require access
+ // checks.
+ ASSERT(receiver->IsJSGlobalObject() || !receiver->IsAccessCheckNeeded());
+
+ __ pop(ebx); // remove the return address
+ __ push(Operand(esp, 0)); // receiver
+ __ push(ecx); // name
+ __ push(eax); // value
+ __ push(ebx); // restore return address
+
+ // Do tail-call to the C builtin.
+ __ mov(eax, 2); // not counting receiver
+ ExternalReference store_interceptor =
+ ExternalReference(IC_Utility(IC::kStoreInterceptorProperty));
+ __ JumpToBuiltin(store_interceptor);
+
+ // Handle store cache miss.
+ __ bind(&miss);
+ __ mov(Operand(ecx), Immediate(Handle<String>(name))); // restore name
+ Handle<Code> ic(Builtins::builtin(Builtins::StoreIC_Miss));
+ __ jmp(ic, code_target);
+
+ // Return the generated code.
+ return GetCode(INTERCEPTOR);
+}
+
+
+Object* KeyedStoreStubCompiler::CompileStoreField(JSObject* object,
+ int index,
+ Map* transition,
+ String* name) {
+ // ----------- S t a t e -------------
+ // -- eax : value
+ // -- esp[0] : return address
+ // -- esp[4] : key
+ // -- esp[8] : receiver
+ // -----------------------------------
+ HandleScope scope;
+ Label miss;
+
+ __ IncrementCounter(&Counters::keyed_store_field, 1);
+
+ // Get the name from the stack.
+ __ mov(ecx, Operand(esp, 1 * kPointerSize));
+ // Check that the name has not changed.
+ __ cmp(Operand(ecx), Immediate(Handle<String>(name)));
+ __ j(not_equal, &miss, not_taken);
+
+ // Get the object from the stack.
+ __ mov(ebx, Operand(esp, 2 * kPointerSize));
+
+ // Generate store field code. Trashes the name register.
+ GenerateStoreField(masm(), object, index, transition, ebx, ecx, edx, &miss);
+
+ // Handle store cache miss.
+ __ bind(&miss);
+ __ DecrementCounter(&Counters::keyed_store_field, 1);
+ Handle<Code> ic(Builtins::builtin(Builtins::KeyedStoreIC_Miss));
+ __ jmp(ic, code_target);
+
+ // Return the generated code.
+ return GetCode(transition == NULL ? FIELD : MAP_TRANSITION);
+}
+
+
+Object* LoadStubCompiler::CompileLoadField(JSObject* object,
+ JSObject* holder,
+ int index) {
+ // ----------- S t a t e -------------
+ // -- ecx : name
+ // -- esp[0] : return address
+ // -- esp[4] : receiver
+ // -----------------------------------
+
+ HandleScope scope;
+ Label miss;
+
+ __ mov(eax, (Operand(esp, kPointerSize)));
+ GenerateLoadField(masm(), object, holder, eax, ebx, edx, index, &miss);
+ __ bind(&miss);
+ GenerateLoadMiss(masm(), Code::LOAD_IC);
+
+ // Return the generated code.
+ return GetCode(FIELD);
+}
+
+
+Object* LoadStubCompiler::CompileLoadCallback(JSObject* object,
+ JSObject* holder,
+ AccessorInfo* callback) {
+ // ----------- S t a t e -------------
+ // -- ecx : name
+ // -- esp[0] : return address
+ // -- esp[4] : receiver
+ // -----------------------------------
+
+ HandleScope scope;
+ Label miss;
+
+ __ mov(eax, (Operand(esp, kPointerSize)));
+ GenerateLoadCallback(masm(), object, holder, eax, ecx, ebx,
+ edx, callback, &miss);
+ __ bind(&miss);
+ GenerateLoadMiss(masm(), Code::LOAD_IC);
+
+ // Return the generated code.
+ return GetCode(CALLBACKS);
+}
+
+
+Object* LoadStubCompiler::CompileLoadConstant(JSObject* object,
+ JSObject* holder,
+ Object* value) {
+ // ----------- S t a t e -------------
+ // -- ecx : name
+ // -- esp[0] : return address
+ // -- esp[4] : receiver
+ // -----------------------------------
+
+ HandleScope scope;
+ Label miss;
+
+ __ mov(eax, (Operand(esp, kPointerSize)));
+ GenerateLoadConstant(masm(), object, holder, eax, ebx, edx, value, &miss);
+ __ bind(&miss);
+ GenerateLoadMiss(masm(), Code::LOAD_IC);
+
+ // Return the generated code.
+ return GetCode(CONSTANT_FUNCTION);
+}
+
+
+Object* LoadStubCompiler::CompileLoadInterceptor(JSObject* receiver,
+ JSObject* holder,
+ String* name) {
+ // ----------- S t a t e -------------
+ // -- ecx : name
+ // -- esp[0] : return address
+ // -- esp[4] : receiver
+ // -----------------------------------
+ HandleScope scope;
+ Label miss;
+
+ __ mov(eax, (Operand(esp, kPointerSize)));
+ GenerateLoadInterceptor(masm(), receiver, holder, eax, ecx, edx, ebx, &miss);
+ __ bind(&miss);
+ GenerateLoadMiss(masm(), Code::LOAD_IC);
+
+ // Return the generated code.
+ return GetCode(INTERCEPTOR);
+}
+
+
+Object* KeyedLoadStubCompiler::CompileLoadField(String* name,
+ JSObject* receiver,
+ JSObject* holder,
+ int index) {
+ // ----------- S t a t e -------------
+ // -- esp[0] : return address
+ // -- esp[4] : name
+ // -- esp[8] : receiver
+ // -----------------------------------
+ HandleScope scope;
+ Label miss;
+
+ __ mov(eax, (Operand(esp, kPointerSize)));
+ __ mov(ecx, (Operand(esp, 2 * kPointerSize)));
+ __ IncrementCounter(&Counters::keyed_load_field, 1);
+
+ // Check that the name has not changed.
+ __ cmp(Operand(eax), Immediate(Handle<String>(name)));
+ __ j(not_equal, &miss, not_taken);
+
+ GenerateLoadField(masm(), receiver, holder, ecx, ebx, edx, index, &miss);
+ __ bind(&miss);
+ __ DecrementCounter(&Counters::keyed_load_field, 1);
+ GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC);
+
+ // Return the generated code.
+ return GetCode(FIELD);
+}
+
+
+Object* KeyedLoadStubCompiler::CompileLoadCallback(String* name,
+ JSObject* receiver,
+ JSObject* holder,
+ AccessorInfo* callback) {
+ // ----------- S t a t e -------------
+ // -- esp[0] : return address
+ // -- esp[4] : name
+ // -- esp[8] : receiver
+ // -----------------------------------
+ HandleScope scope;
+ Label miss;
+
+ __ mov(eax, (Operand(esp, kPointerSize)));
+ __ mov(ecx, (Operand(esp, 2 * kPointerSize)));
+ __ IncrementCounter(&Counters::keyed_load_callback, 1);
+
+ // Check that the name has not changed.
+ __ cmp(Operand(eax), Immediate(Handle<String>(name)));
+ __ j(not_equal, &miss, not_taken);
+
+ GenerateLoadCallback(masm(), receiver, holder, ecx, eax, ebx, edx,
+ callback, &miss);
+ __ bind(&miss);
+ __ DecrementCounter(&Counters::keyed_load_callback, 1);
+ GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC);
+
+ // Return the generated code.
+ return GetCode(CALLBACKS);
+}
+
+
+Object* KeyedLoadStubCompiler::CompileLoadConstant(String* name,
+ JSObject* receiver,
+ JSObject* holder,
+ Object* value) {
+ // ----------- S t a t e -------------
+ // -- esp[0] : return address
+ // -- esp[4] : name
+ // -- esp[8] : receiver
+ // -----------------------------------
+ HandleScope scope;
+ Label miss;
+
+ __ mov(eax, (Operand(esp, kPointerSize)));
+ __ mov(ecx, (Operand(esp, 2 * kPointerSize)));
+ __ IncrementCounter(&Counters::keyed_load_constant_function, 1);
+
+ // Check that the name has not changed.
+ __ cmp(Operand(eax), Immediate(Handle<String>(name)));
+ __ j(not_equal, &miss, not_taken);
+
+ GenerateLoadConstant(masm(), receiver, holder, ecx, ebx, edx, value, &miss);
+ __ bind(&miss);
+ __ DecrementCounter(&Counters::keyed_load_constant_function, 1);
+ GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC);
+
+ // Return the generated code.
+ return GetCode(CONSTANT_FUNCTION);
+}
+
+
+Object* KeyedLoadStubCompiler::CompileLoadInterceptor(JSObject* receiver,
+ JSObject* holder,
+ String* name) {
+ // ----------- S t a t e -------------
+ // -- esp[0] : return address
+ // -- esp[4] : name
+ // -- esp[8] : receiver
+ // -----------------------------------
+ HandleScope scope;
+ Label miss;
+
+ __ mov(eax, (Operand(esp, kPointerSize)));
+ __ mov(ecx, (Operand(esp, 2 * kPointerSize)));
+ __ IncrementCounter(&Counters::keyed_load_interceptor, 1);
+
+ // Check that the name has not changed.
+ __ cmp(Operand(eax), Immediate(Handle<String>(name)));
+ __ j(not_equal, &miss, not_taken);
+
+ GenerateLoadInterceptor(masm(), receiver, holder, ecx, eax, edx, ebx, &miss);
+ __ bind(&miss);
+ __ DecrementCounter(&Counters::keyed_load_interceptor, 1);
+ GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC);
+
+ // Return the generated code.
+ return GetCode(INTERCEPTOR);
+}
+
+
+
+
+Object* KeyedLoadStubCompiler::CompileLoadArrayLength(String* name) {
+ // ----------- S t a t e -------------
+ // -- esp[0] : return address
+ // -- esp[4] : name
+ // -- esp[8] : receiver
+ // -----------------------------------
+ HandleScope scope;
+ Label miss;
+
+ __ mov(eax, (Operand(esp, kPointerSize)));
+ __ mov(ecx, (Operand(esp, 2 * kPointerSize)));
+ __ IncrementCounter(&Counters::keyed_load_array_length, 1);
+
+ // Check that the name has not changed.
+ __ cmp(Operand(eax), Immediate(Handle<String>(name)));
+ __ j(not_equal, &miss, not_taken);
+
+ GenerateLoadArrayLength(masm(), ecx, edx, &miss);
+ __ bind(&miss);
+ __ DecrementCounter(&Counters::keyed_load_array_length, 1);
+ GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC);
+
+ // Return the generated code.
+ return GetCode(CALLBACKS);
+}
+
+
+Object* KeyedLoadStubCompiler::CompileLoadShortStringLength(String* name) {
+ // ----------- S t a t e -------------
+ // -- esp[0] : return address
+ // -- esp[4] : name
+ // -- esp[8] : receiver
+ // -----------------------------------
+ HandleScope scope;
+ Label miss;
+
+ __ mov(eax, (Operand(esp, kPointerSize)));
+ __ mov(ecx, (Operand(esp, 2 * kPointerSize)));
+ __ IncrementCounter(&Counters::keyed_load_string_length, 1);
+
+ // Check that the name has not changed.
+ __ cmp(Operand(eax), Immediate(Handle<String>(name)));
+ __ j(not_equal, &miss, not_taken);
+
+ GenerateLoadShortStringLength(masm(), ecx, edx, &miss);
+ __ bind(&miss);
+ __ DecrementCounter(&Counters::keyed_load_string_length, 1);
+ GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC);
+
+ // Return the generated code.
+ return GetCode(CALLBACKS);
+}
+
+
+Object* KeyedLoadStubCompiler::CompileLoadMediumStringLength(String* name) {
+ // ----------- S t a t e -------------
+ // -- esp[0] : return address
+ // -- esp[4] : name
+ // -- esp[8] : receiver
+ // -----------------------------------
+ HandleScope scope;
+ Label miss;
+
+ __ mov(eax, (Operand(esp, kPointerSize)));
+ __ mov(ecx, (Operand(esp, 2 * kPointerSize)));
+ __ IncrementCounter(&Counters::keyed_load_string_length, 1);
+
+ // Check that the name has not changed.
+ __ cmp(Operand(eax), Immediate(Handle<String>(name)));
+ __ j(not_equal, &miss, not_taken);
+
+ GenerateLoadMediumStringLength(masm(), ecx, edx, &miss);
+ __ bind(&miss);
+ __ DecrementCounter(&Counters::keyed_load_string_length, 1);
+ GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC);
+
+ // Return the generated code.
+ return GetCode(CALLBACKS);
+}
+
+
+Object* KeyedLoadStubCompiler::CompileLoadLongStringLength(String* name) {
+ // ----------- S t a t e -------------
+ // -- esp[0] : return address
+ // -- esp[4] : name
+ // -- esp[8] : receiver
+ // -----------------------------------
+ HandleScope scope;
+ Label miss;
+
+ __ mov(eax, (Operand(esp, kPointerSize)));
+ __ mov(ecx, (Operand(esp, 2 * kPointerSize)));
+ __ IncrementCounter(&Counters::keyed_load_string_length, 1);
+
+ // Check that the name has not changed.
+ __ cmp(Operand(eax), Immediate(Handle<String>(name)));
+ __ j(not_equal, &miss, not_taken);
+
+ GenerateLoadLongStringLength(masm(), ecx, edx, &miss);
+ __ bind(&miss);
+ __ DecrementCounter(&Counters::keyed_load_string_length, 1);
+ GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC);
+
+ // Return the generated code.
+ return GetCode(CALLBACKS);
+}
+
+
+Object* KeyedLoadStubCompiler::CompileLoadFunctionPrototype(String* name) {
+ // ----------- S t a t e -------------
+ // -- esp[0] : return address
+ // -- esp[4] : name
+ // -- esp[8] : receiver
+ // -----------------------------------
+ HandleScope scope;
+ Label miss;
+
+ __ mov(eax, (Operand(esp, kPointerSize)));
+ __ mov(ecx, (Operand(esp, 2 * kPointerSize)));
+ __ IncrementCounter(&Counters::keyed_load_function_prototype, 1);
+
+ // Check that the name has not changed.
+ __ cmp(Operand(eax), Immediate(Handle<String>(name)));
+ __ j(not_equal, &miss, not_taken);
+
+ GenerateLoadFunctionPrototype(masm(), ecx, edx, ebx, &miss);
+ __ bind(&miss);
+ __ DecrementCounter(&Counters::keyed_load_function_prototype, 1);
+ GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC);
+
+ // Return the generated code.
+ return GetCode(CALLBACKS);
+}
+
+
+#undef __
+
+} } // namespace v8::internal