2009-05-04 07:16:10 +00:00
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// Copyright 2009 the V8 project authors. All rights reserved.
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following
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// disclaimer in the documentation and/or other materials provided
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// with the distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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2009-06-17 11:50:33 +00:00
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#include "v8.h"
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#include "ic-inl.h"
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#include "codegen-inl.h"
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#include "stub-cache.h"
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2009-06-23 11:26:05 +00:00
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#include "macro-assembler-x64.h"
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2009-06-17 11:50:33 +00:00
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namespace v8 {
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namespace internal {
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2009-07-16 12:49:14 +00:00
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#define __ ACCESS_MASM((masm()))
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Object* CallStubCompiler::CompileCallConstant(Object* object,
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JSObject* holder,
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JSFunction* function,
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String* name,
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StubCompiler::CheckType check) {
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// ----------- S t a t e -------------
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// -----------------------------------
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// rsp[0] return address
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// rsp[8] argument argc
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// rsp[16] argument argc - 1
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// ...
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// rsp[argc * 8] argument 1
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// rsp[(argc + 1) * 8] argument 0 = reciever
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// rsp[(argc + 2) * 8] function name
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Label miss;
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// Get the receiver from the stack.
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const int argc = arguments().immediate();
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__ movq(rdx, Operand(rsp, (argc + 1) * kPointerSize));
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// Check that the receiver isn't a smi.
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if (check != NUMBER_CHECK) {
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__ testl(rdx, Immediate(kSmiTagMask));
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__ j(zero, &miss);
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}
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// Make sure that it's okay not to patch the on stack receiver
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// unless we're doing a receiver map check.
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ASSERT(!object->IsGlobalObject() || check == RECEIVER_MAP_CHECK);
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switch (check) {
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case RECEIVER_MAP_CHECK:
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// Check that the maps haven't changed.
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CheckPrototypes(JSObject::cast(object), rdx, holder,
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rbx, rcx, name, &miss);
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// Patch the receiver on the stack with the global proxy if
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// necessary.
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if (object->IsGlobalObject()) {
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__ movq(rdx, FieldOperand(rdx, GlobalObject::kGlobalReceiverOffset));
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__ movq(Operand(rsp, (argc + 1) * kPointerSize), rdx);
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}
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break;
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case STRING_CHECK:
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// Check that the object is a two-byte string or a symbol.
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__ CmpObjectType(rdx, FIRST_NONSTRING_TYPE, rcx);
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__ j(above_equal, &miss);
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// Check that the maps starting from the prototype haven't changed.
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GenerateLoadGlobalFunctionPrototype(masm(),
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Context::STRING_FUNCTION_INDEX,
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rcx);
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CheckPrototypes(JSObject::cast(object->GetPrototype()), rcx, holder,
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rbx, rdx, name, &miss);
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break;
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case NUMBER_CHECK: {
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Label fast;
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// Check that the object is a smi or a heap number.
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__ testl(rdx, Immediate(kSmiTagMask));
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__ j(zero, &fast);
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__ CmpObjectType(rdx, HEAP_NUMBER_TYPE, rcx);
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__ j(not_equal, &miss);
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__ bind(&fast);
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// Check that the maps starting from the prototype haven't changed.
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GenerateLoadGlobalFunctionPrototype(masm(),
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Context::NUMBER_FUNCTION_INDEX,
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rcx);
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CheckPrototypes(JSObject::cast(object->GetPrototype()), rcx, holder,
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rbx, rdx, name, &miss);
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break;
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}
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case BOOLEAN_CHECK: {
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Label fast;
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// Check that the object is a boolean.
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__ Cmp(rdx, Factory::true_value());
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__ j(equal, &fast);
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__ Cmp(rdx, Factory::false_value());
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__ j(not_equal, &miss);
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__ bind(&fast);
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// Check that the maps starting from the prototype haven't changed.
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GenerateLoadGlobalFunctionPrototype(masm(),
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Context::BOOLEAN_FUNCTION_INDEX,
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rcx);
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CheckPrototypes(JSObject::cast(object->GetPrototype()), rcx, holder,
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rbx, rdx, name, &miss);
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break;
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}
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case JSARRAY_HAS_FAST_ELEMENTS_CHECK:
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CheckPrototypes(JSObject::cast(object), rdx, holder,
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rbx, rcx, name, &miss);
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// Make sure object->elements()->map() != Heap::dictionary_array_map()
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// Get the elements array of the object.
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__ movq(rbx, FieldOperand(rdx, JSObject::kElementsOffset));
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// Check that the object is in fast mode (not dictionary).
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__ Cmp(FieldOperand(rbx, HeapObject::kMapOffset),
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Factory::hash_table_map());
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__ j(equal, &miss);
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break;
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default:
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UNREACHABLE();
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}
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// Get the function and setup the context.
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__ Move(rdi, Handle<JSFunction>(function));
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__ movq(rsi, FieldOperand(rdi, JSFunction::kContextOffset));
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// Jump to the cached code (tail call).
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ASSERT(function->is_compiled());
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Handle<Code> code(function->code());
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ParameterCount expected(function->shared()->formal_parameter_count());
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__ InvokeCode(code, expected, arguments(),
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RelocInfo::CODE_TARGET, JUMP_FUNCTION);
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// Handle call cache miss.
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__ bind(&miss);
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Handle<Code> ic = ComputeCallMiss(arguments().immediate());
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__ Jump(ic, RelocInfo::CODE_TARGET);
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// Return the generated code.
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String* function_name = NULL;
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if (function->shared()->name()->IsString()) {
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function_name = String::cast(function->shared()->name());
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}
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return GetCode(CONSTANT_FUNCTION, function_name);
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2009-06-17 11:50:33 +00:00
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}
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2009-07-16 12:49:14 +00:00
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2009-07-17 08:55:01 +00:00
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Object* CallStubCompiler::CompileCallField(Object* object,
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JSObject* holder,
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int index,
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String* name) {
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// ----------- S t a t e -------------
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// -----------------------------------
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// rsp[0] return address
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// rsp[8] argument argc
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// rsp[16] argument argc - 1
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// ...
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// rsp[argc * 8] argument 1
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// rsp[(argc + 1) * 8] argument 0 = receiver
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// rsp[(argc + 2) * 8] function name
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Label miss;
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// Get the receiver from the stack.
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const int argc = arguments().immediate();
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__ movq(rdx, Operand(rsp, (argc + 1) * kPointerSize));
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// Check that the receiver isn't a smi.
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__ testl(rdx, Immediate(kSmiTagMask));
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__ j(zero, &miss);
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// Do the right check and compute the holder register.
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Register reg =
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CheckPrototypes(JSObject::cast(object), rdx, holder,
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rbx, rcx, name, &miss);
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GenerateFastPropertyLoad(masm(), rdi, reg, holder, index);
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// Check that the function really is a function.
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__ testl(rdi, Immediate(kSmiTagMask));
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__ j(zero, &miss);
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__ CmpObjectType(rdi, JS_FUNCTION_TYPE, rbx);
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__ j(not_equal, &miss);
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// Patch the receiver on the stack with the global proxy if
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// necessary.
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if (object->IsGlobalObject()) {
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__ movq(rdx, FieldOperand(rdx, GlobalObject::kGlobalReceiverOffset));
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__ movq(Operand(rsp, (argc + 1) * kPointerSize), rdx);
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}
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// Invoke the function.
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__ InvokeFunction(rdi, arguments(), JUMP_FUNCTION);
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// Handle call cache miss.
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__ bind(&miss);
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Handle<Code> ic = ComputeCallMiss(arguments().immediate());
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__ Jump(ic, RelocInfo::CODE_TARGET);
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// Return the generated code.
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return GetCode(FIELD, name);
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2009-06-17 11:50:33 +00:00
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}
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Object* CallStubCompiler::CompileCallInterceptor(Object* a,
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JSObject* b,
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String* c) {
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2009-07-16 08:38:52 +00:00
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// TODO(X64): Implement a real stub.
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return Failure::InternalError();
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2009-06-17 11:50:33 +00:00
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}
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2009-07-09 11:17:57 +00:00
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Object* CallStubCompiler::CompileCallGlobal(JSObject* object,
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GlobalObject* holder,
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2009-06-30 10:05:36 +00:00
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JSGlobalPropertyCell* cell,
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JSFunction* function,
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String* name) {
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2009-07-17 12:58:12 +00:00
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// ----------- S t a t e -------------
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// -----------------------------------
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// rsp[0] return address
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// rsp[8] argument argc
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// rsp[16] argument argc - 1
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// ...
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// rsp[argc * 8] argument 1
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// rsp[(argc + 1) * 8] argument 0 = receiver
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// rsp[(argc + 2) * 8] function name
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Label miss;
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__ IncrementCounter(&Counters::call_global_inline, 1);
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// Get the number of arguments.
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const int argc = arguments().immediate();
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// Get the receiver from the stack.
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__ movq(rdx, Operand(rsp, (argc + 1) * kPointerSize));
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// If the object is the holder then we know that it's a global
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// object which can only happen for contextual calls. In this case,
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// the receiver cannot be a smi.
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if (object != holder) {
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__ testl(rdx, Immediate(kSmiTagMask));
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__ j(zero, &miss);
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}
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// Check that the maps haven't changed.
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CheckPrototypes(object, rdx, holder, rbx, rcx, name, &miss);
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// Get the value from the cell.
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__ Move(rdi, Handle<JSGlobalPropertyCell>(cell));
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__ movq(rdi, FieldOperand(rdi, JSGlobalPropertyCell::kValueOffset));
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// Check that the cell contains the same function.
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__ Cmp(rdi, Handle<JSFunction>(function));
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__ j(not_equal, &miss);
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// Patch the receiver on the stack with the global proxy.
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if (object->IsGlobalObject()) {
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__ movq(rdx, FieldOperand(rdx, GlobalObject::kGlobalReceiverOffset));
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__ movq(Operand(rsp, (argc + 1) * kPointerSize), rdx);
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}
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// Setup the context (function already in edi).
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__ movq(rsi, FieldOperand(rdi, JSFunction::kContextOffset));
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// Jump to the cached code (tail call).
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ASSERT(function->is_compiled());
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Handle<Code> code(function->code());
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ParameterCount expected(function->shared()->formal_parameter_count());
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__ InvokeCode(code, expected, arguments(),
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RelocInfo::CODE_TARGET, JUMP_FUNCTION);
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// Handle call cache miss.
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__ bind(&miss);
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__ DecrementCounter(&Counters::call_global_inline, 1);
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__ IncrementCounter(&Counters::call_global_inline_miss, 1);
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Handle<Code> ic = ComputeCallMiss(arguments().immediate());
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__ Jump(ic, RelocInfo::CODE_TARGET);
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// Return the generated code.
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return GetCode(NORMAL, name);
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2009-06-30 10:05:36 +00:00
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}
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2009-06-17 11:50:33 +00:00
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Object* LoadStubCompiler::CompileLoadCallback(JSObject* a,
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JSObject* b,
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AccessorInfo* c,
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String* d) {
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UNIMPLEMENTED();
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return NULL;
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}
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Object* LoadStubCompiler::CompileLoadConstant(JSObject* a,
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JSObject* b,
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Object* c,
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String* d) {
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UNIMPLEMENTED();
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return NULL;
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}
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Object* LoadStubCompiler::CompileLoadField(JSObject* a,
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JSObject* b,
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int c,
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String* d) {
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UNIMPLEMENTED();
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return NULL;
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}
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Object* LoadStubCompiler::CompileLoadInterceptor(JSObject* a,
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JSObject* b,
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String* c) {
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UNIMPLEMENTED();
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return NULL;
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}
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2009-07-09 11:17:57 +00:00
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Object* LoadStubCompiler::CompileLoadGlobal(JSObject* object,
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GlobalObject* holder,
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2009-06-30 10:05:36 +00:00
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JSGlobalPropertyCell* cell,
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2009-06-30 19:02:59 +00:00
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String* name,
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2009-06-30 14:58:33 +00:00
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bool is_dont_delete) {
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2009-06-30 10:05:36 +00:00
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UNIMPLEMENTED();
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return NULL;
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}
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2009-06-17 11:50:33 +00:00
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Object* StoreStubCompiler::CompileStoreCallback(JSObject* a,
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AccessorInfo* b,
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String* c) {
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UNIMPLEMENTED();
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return NULL;
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}
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Object* StoreStubCompiler::CompileStoreField(JSObject* a,
|
|
|
|
int b,
|
|
|
|
Map* c,
|
|
|
|
String* d) {
|
|
|
|
UNIMPLEMENTED();
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
Object* StoreStubCompiler::CompileStoreInterceptor(JSObject* a, String* b) {
|
|
|
|
UNIMPLEMENTED();
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2009-07-01 11:44:37 +00:00
|
|
|
Object* StoreStubCompiler::CompileStoreGlobal(GlobalObject* object,
|
2009-06-30 10:05:36 +00:00
|
|
|
JSGlobalPropertyCell* cell,
|
|
|
|
String* name) {
|
|
|
|
UNIMPLEMENTED();
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2009-06-22 10:54:11 +00:00
|
|
|
// TODO(1241006): Avoid having lazy compile stubs specialized by the
|
|
|
|
// number of arguments. It is not needed anymore.
|
|
|
|
Object* StubCompiler::CompileLazyCompile(Code::Flags flags) {
|
|
|
|
// Enter an internal frame.
|
|
|
|
__ EnterInternalFrame();
|
|
|
|
|
|
|
|
// Push a copy of the function onto the stack.
|
|
|
|
__ push(rdi);
|
|
|
|
|
|
|
|
__ push(rdi); // function is also the parameter to the runtime call
|
|
|
|
__ CallRuntime(Runtime::kLazyCompile, 1);
|
|
|
|
__ pop(rdi);
|
|
|
|
|
|
|
|
// Tear down temporary frame.
|
|
|
|
__ LeaveInternalFrame();
|
|
|
|
|
|
|
|
// Do a tail-call of the compiled function.
|
|
|
|
__ lea(rcx, FieldOperand(rax, Code::kHeaderSize));
|
|
|
|
__ jmp(rcx);
|
|
|
|
|
|
|
|
return GetCodeWithFlags(flags, "LazyCompileStub");
|
2009-06-17 11:50:33 +00:00
|
|
|
}
|
|
|
|
|
2009-07-16 12:49:14 +00:00
|
|
|
|
|
|
|
Register StubCompiler::CheckPrototypes(JSObject* object,
|
|
|
|
Register object_reg,
|
|
|
|
JSObject* holder,
|
|
|
|
Register holder_reg,
|
|
|
|
Register scratch,
|
|
|
|
String* name,
|
|
|
|
Label* miss) {
|
|
|
|
// Check that the maps haven't changed.
|
|
|
|
Register result =
|
|
|
|
__ CheckMaps(object, object_reg, holder, holder_reg, scratch, miss);
|
|
|
|
|
|
|
|
// If we've skipped any global objects, it's not enough to verify
|
|
|
|
// that their maps haven't changed.
|
|
|
|
while (object != holder) {
|
|
|
|
if (object->IsGlobalObject()) {
|
|
|
|
GlobalObject* global = GlobalObject::cast(object);
|
|
|
|
Object* probe = global->EnsurePropertyCell(name);
|
|
|
|
if (probe->IsFailure()) {
|
|
|
|
set_failure(Failure::cast(probe));
|
|
|
|
return result;
|
|
|
|
}
|
|
|
|
JSGlobalPropertyCell* cell = JSGlobalPropertyCell::cast(probe);
|
|
|
|
ASSERT(cell->value()->IsTheHole());
|
|
|
|
__ Move(scratch, Handle<Object>(cell));
|
|
|
|
__ Cmp(FieldOperand(scratch, JSGlobalPropertyCell::kValueOffset),
|
|
|
|
Factory::the_hole_value());
|
|
|
|
__ j(not_equal, miss);
|
|
|
|
}
|
|
|
|
object = JSObject::cast(object->GetPrototype());
|
|
|
|
}
|
|
|
|
|
|
|
|
// Return the register containing the holder.
|
|
|
|
return result;
|
|
|
|
}
|
|
|
|
|
2009-07-17 08:55:01 +00:00
|
|
|
#undef __
|
|
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
|
|
// StubCompiler static helper functions
|
|
|
|
|
|
|
|
#define __ ACCESS_MASM(masm)
|
2009-07-16 12:49:14 +00:00
|
|
|
|
|
|
|
void StubCompiler::GenerateLoadGlobalFunctionPrototype(MacroAssembler* masm,
|
|
|
|
int index,
|
|
|
|
Register prototype) {
|
|
|
|
// Load the global or builtins object from the current context.
|
2009-07-17 08:55:01 +00:00
|
|
|
__ movq(prototype,
|
2009-07-16 12:49:14 +00:00
|
|
|
Operand(rsi, Context::SlotOffset(Context::GLOBAL_INDEX)));
|
|
|
|
// Load the global context from the global or builtins object.
|
2009-07-17 08:55:01 +00:00
|
|
|
__ movq(prototype,
|
2009-07-16 12:49:14 +00:00
|
|
|
FieldOperand(prototype, GlobalObject::kGlobalContextOffset));
|
|
|
|
// Load the function from the global context.
|
2009-07-17 08:55:01 +00:00
|
|
|
__ movq(prototype, Operand(prototype, Context::SlotOffset(index)));
|
2009-07-16 12:49:14 +00:00
|
|
|
// Load the initial map. The global functions all have initial maps.
|
2009-07-17 08:55:01 +00:00
|
|
|
__ movq(prototype,
|
2009-07-16 12:49:14 +00:00
|
|
|
FieldOperand(prototype, JSFunction::kPrototypeOrInitialMapOffset));
|
|
|
|
// Load the prototype from the initial map.
|
2009-07-17 08:55:01 +00:00
|
|
|
__ movq(prototype, FieldOperand(prototype, Map::kPrototypeOffset));
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
// Load a fast property out of a holder object (src). In-object properties
|
|
|
|
// are loaded directly otherwise the property is loaded from the properties
|
|
|
|
// fixed array.
|
|
|
|
void StubCompiler::GenerateFastPropertyLoad(MacroAssembler* masm,
|
|
|
|
Register dst, Register src,
|
|
|
|
JSObject* holder, int index) {
|
|
|
|
// Adjust for the number of properties stored in the holder.
|
|
|
|
index -= holder->map()->inobject_properties();
|
|
|
|
if (index < 0) {
|
|
|
|
// Get the property straight out of the holder.
|
|
|
|
int offset = holder->map()->instance_size() + (index * kPointerSize);
|
|
|
|
__ movq(dst, FieldOperand(src, offset));
|
|
|
|
} else {
|
|
|
|
// Calculate the offset into the properties array.
|
|
|
|
int offset = index * kPointerSize + FixedArray::kHeaderSize;
|
|
|
|
__ movq(dst, FieldOperand(src, JSObject::kPropertiesOffset));
|
|
|
|
__ movq(dst, FieldOperand(dst, offset));
|
|
|
|
}
|
2009-07-16 12:49:14 +00:00
|
|
|
}
|
|
|
|
|
2009-06-22 10:54:11 +00:00
|
|
|
#undef __
|
|
|
|
|
|
|
|
|
2009-06-17 11:50:33 +00:00
|
|
|
} } // namespace v8::internal
|