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1180 lines
41 KiB
1180 lines
41 KiB
16 years ago
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// Copyright 2006-2008 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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#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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namespace v8 { namespace internal {
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16 years ago
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#define __ ACCESS_MASM(masm)
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16 years ago
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static void ProbeTable(MacroAssembler* masm,
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Code::Flags flags,
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StubCache::Table table,
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Register name,
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Register offset) {
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ExternalReference key_offset(SCTableReference::keyReference(table));
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ExternalReference value_offset(SCTableReference::valueReference(table));
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Label miss;
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// Save the offset on the stack.
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__ push(offset);
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// Check that the key in the entry matches the name.
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__ cmp(name, Operand::StaticArray(offset, times_2, key_offset));
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__ j(not_equal, &miss, not_taken);
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// Get the code entry from the cache.
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__ mov(offset, Operand::StaticArray(offset, times_2, value_offset));
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// Check that the flags match what we're looking for.
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__ mov(offset, FieldOperand(offset, Code::kFlagsOffset));
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__ and_(offset, ~Code::kFlagsTypeMask);
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__ cmp(offset, flags);
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__ j(not_equal, &miss);
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// Restore offset and re-load code entry from cache.
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__ pop(offset);
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__ mov(offset, Operand::StaticArray(offset, times_2, value_offset));
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// Jump to the first instruction in the code stub.
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__ add(Operand(offset), Immediate(Code::kHeaderSize - kHeapObjectTag));
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__ jmp(Operand(offset));
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// Miss: Restore offset and fall through.
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__ bind(&miss);
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__ pop(offset);
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}
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void StubCache::GenerateProbe(MacroAssembler* masm,
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Code::Flags flags,
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Register receiver,
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Register name,
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Register scratch) {
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Label miss;
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// Make sure that code is valid. The shifting code relies on the
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// entry size being 8.
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ASSERT(sizeof(Entry) == 8);
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// Make sure the flags does not name a specific type.
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ASSERT(Code::ExtractTypeFromFlags(flags) == 0);
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// Make sure that there are no register conflicts.
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ASSERT(!scratch.is(receiver));
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ASSERT(!scratch.is(name));
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// Check that the receiver isn't a smi.
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__ test(receiver, Immediate(kSmiTagMask));
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__ j(zero, &miss, not_taken);
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// Get the map of the receiver and compute the hash.
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__ mov(scratch, FieldOperand(name, String::kLengthOffset));
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__ add(scratch, FieldOperand(receiver, HeapObject::kMapOffset));
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__ xor_(scratch, flags);
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__ and_(scratch, (kPrimaryTableSize - 1) << kHeapObjectTagSize);
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// Probe the primary table.
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ProbeTable(masm, flags, kPrimary, name, scratch);
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// Primary miss: Compute hash for secondary probe.
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__ sub(scratch, Operand(name));
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__ add(Operand(scratch), Immediate(flags));
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__ and_(scratch, (kSecondaryTableSize - 1) << kHeapObjectTagSize);
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// Probe the secondary table.
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ProbeTable(masm, flags, kSecondary, name, scratch);
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// Cache miss: Fall-through and let caller handle the miss by
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// entering the runtime system.
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__ bind(&miss);
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}
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void StubCompiler::GenerateLoadGlobalFunctionPrototype(MacroAssembler* masm,
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int index,
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Register prototype) {
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// Load the global or builtins object from the current context.
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__ mov(prototype, Operand(esi, Context::SlotOffset(Context::GLOBAL_INDEX)));
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// Load the global context from the global or builtins object.
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__ mov(prototype,
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FieldOperand(prototype, GlobalObject::kGlobalContextOffset));
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// Load the function from the global context.
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__ mov(prototype, Operand(prototype, Context::SlotOffset(index)));
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// Load the initial map. The global functions all have initial maps.
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__ mov(prototype,
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FieldOperand(prototype, JSFunction::kPrototypeOrInitialMapOffset));
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// Load the prototype from the initial map.
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__ mov(prototype, FieldOperand(prototype, Map::kPrototypeOffset));
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}
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void StubCompiler::GenerateLoadArrayLength(MacroAssembler* masm,
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Register receiver,
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Register scratch,
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Label* miss_label) {
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// Check that the receiver isn't a smi.
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__ test(receiver, Immediate(kSmiTagMask));
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__ j(zero, miss_label, not_taken);
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// Check that the object is a JS array.
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__ CmpObjectType(receiver, JS_ARRAY_TYPE, scratch);
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__ j(not_equal, miss_label, not_taken);
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// Load length directly from the JS array.
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__ mov(eax, FieldOperand(receiver, JSArray::kLengthOffset));
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__ ret(0);
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}
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// Generate code to check if an object is a string. If the object is
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// a string, the map's instance type is left in the scratch register.
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static void GenerateStringCheck(MacroAssembler* masm,
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Register receiver,
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Register scratch,
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Label* smi,
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Label* non_string_object) {
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// Check that the object isn't a smi.
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__ test(receiver, Immediate(kSmiTagMask));
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__ j(zero, smi, not_taken);
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// Check that the object is a string.
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__ mov(scratch, FieldOperand(receiver, HeapObject::kMapOffset));
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__ movzx_b(scratch, FieldOperand(scratch, Map::kInstanceTypeOffset));
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ASSERT(kNotStringTag != 0);
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__ test(scratch, Immediate(kNotStringTag));
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__ j(not_zero, non_string_object, not_taken);
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}
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void StubCompiler::GenerateLoadStringLength(MacroAssembler* masm,
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Register receiver,
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Register scratch,
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Label* miss) {
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Label load_length, check_wrapper;
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// Check if the object is a string leaving the instance type in the
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// scratch register.
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GenerateStringCheck(masm, receiver, scratch, miss, &check_wrapper);
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// Load length directly from the string.
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__ bind(&load_length);
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__ and_(scratch, kStringSizeMask);
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__ mov(eax, FieldOperand(receiver, String::kLengthOffset));
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// ecx is also the receiver.
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__ lea(ecx, Operand(scratch, String::kLongLengthShift));
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__ shr(eax); // ecx is implicit shift register.
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__ shl(eax, kSmiTagSize);
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__ ret(0);
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// Check if the object is a JSValue wrapper.
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__ bind(&check_wrapper);
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__ cmp(scratch, JS_VALUE_TYPE);
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__ j(not_equal, miss, not_taken);
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// Check if the wrapped value is a string and load the length
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// directly if it is.
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__ mov(receiver, FieldOperand(receiver, JSValue::kValueOffset));
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GenerateStringCheck(masm, receiver, scratch, miss, miss);
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__ jmp(&load_length);
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}
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void StubCompiler::GenerateLoadFunctionPrototype(MacroAssembler* masm,
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Register receiver,
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Register scratch1,
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Register scratch2,
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Label* miss_label) {
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__ TryGetFunctionPrototype(receiver, scratch1, scratch2, miss_label);
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__ mov(eax, Operand(scratch1));
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__ ret(0);
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}
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// Load a fast property out of a holder object (src). In-object properties
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// are loaded directly otherwise the property is loaded from the properties
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// fixed array.
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void StubCompiler::GenerateFastPropertyLoad(MacroAssembler* masm,
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Register dst, Register src,
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JSObject* holder, int index) {
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// Adjust for the number of properties stored in the holder.
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index -= holder->map()->inobject_properties();
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if (index < 0) {
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// Get the property straight out of the holder.
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int offset = holder->map()->instance_size() + (index * kPointerSize);
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__ mov(dst, FieldOperand(src, offset));
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} else {
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// Calculate the offset into the properties array.
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int offset = index * kPointerSize + Array::kHeaderSize;
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__ mov(dst, FieldOperand(src, JSObject::kPropertiesOffset));
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__ mov(dst, FieldOperand(dst, offset));
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}
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}
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void StubCompiler::GenerateLoadField(MacroAssembler* masm,
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JSObject* object,
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JSObject* holder,
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Register receiver,
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Register scratch1,
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Register scratch2,
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int index,
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Label* miss_label) {
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// Check that the receiver isn't a smi.
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__ test(receiver, Immediate(kSmiTagMask));
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__ j(zero, miss_label, not_taken);
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// Check that the maps haven't changed.
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Register reg =
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16 years ago
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masm->CheckMaps(object, receiver, holder, scratch1, scratch2, miss_label);
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16 years ago
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// Get the value from the properties.
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GenerateFastPropertyLoad(masm, eax, reg, holder, index);
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__ ret(0);
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}
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void StubCompiler::GenerateLoadCallback(MacroAssembler* masm,
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JSObject* object,
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JSObject* holder,
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Register receiver,
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Register name,
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Register scratch1,
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Register scratch2,
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AccessorInfo* callback,
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Label* miss_label) {
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// Check that the receiver isn't a smi.
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__ test(receiver, Immediate(kSmiTagMask));
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__ j(zero, miss_label, not_taken);
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// Check that the maps haven't changed.
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Register reg =
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16 years ago
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masm->CheckMaps(object, receiver, holder, scratch1, scratch2, miss_label);
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16 years ago
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// Push the arguments on the JS stack of the caller.
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__ pop(scratch2); // remove return address
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__ push(receiver); // receiver
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__ push(Immediate(Handle<AccessorInfo>(callback))); // callback data
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__ push(name); // name
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__ push(reg); // holder
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__ push(scratch2); // restore return address
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// Do tail-call to the runtime system.
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ExternalReference load_callback_property =
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ExternalReference(IC_Utility(IC::kLoadCallbackProperty));
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__ TailCallRuntime(load_callback_property, 4);
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}
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void StubCompiler::GenerateLoadConstant(MacroAssembler* masm,
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JSObject* object,
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JSObject* holder,
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Register receiver,
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Register scratch1,
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Register scratch2,
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Object* value,
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Label* miss_label) {
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// Check that the receiver isn't a smi.
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__ test(receiver, Immediate(kSmiTagMask));
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__ j(zero, miss_label, not_taken);
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// Check that the maps haven't changed.
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Register reg =
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16 years ago
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masm->CheckMaps(object, receiver, holder, scratch1, scratch2, miss_label);
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16 years ago
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// Return the constant value.
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__ mov(eax, Handle<Object>(value));
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__ ret(0);
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}
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void StubCompiler::GenerateLoadInterceptor(MacroAssembler* masm,
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JSObject* object,
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JSObject* holder,
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Register receiver,
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Register name,
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Register scratch1,
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Register scratch2,
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Label* miss_label) {
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// Check that the receiver isn't a smi.
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__ test(receiver, Immediate(kSmiTagMask));
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__ j(zero, miss_label, not_taken);
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// Check that the maps haven't changed.
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Register reg =
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16 years ago
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masm->CheckMaps(object, receiver, holder, scratch1, scratch2, miss_label);
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16 years ago
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// Push the arguments on the JS stack of the caller.
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__ pop(scratch2); // remove return address
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__ push(receiver); // receiver
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__ push(reg); // holder
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__ push(name); // name
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__ push(scratch2); // restore return address
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// Do tail-call to the runtime system.
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ExternalReference load_ic_property =
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ExternalReference(IC_Utility(IC::kLoadInterceptorProperty));
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__ TailCallRuntime(load_ic_property, 3);
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}
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void StubCompiler::GenerateLoadMiss(MacroAssembler* masm, Code::Kind kind) {
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ASSERT(kind == Code::LOAD_IC || kind == Code::KEYED_LOAD_IC);
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Code* code = NULL;
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if (kind == Code::LOAD_IC) {
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code = Builtins::builtin(Builtins::LoadIC_Miss);
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} else {
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code = Builtins::builtin(Builtins::KeyedLoadIC_Miss);
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}
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Handle<Code> ic(code);
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__ jmp(ic, RelocInfo::CODE_TARGET);
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}
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void StubCompiler::GenerateStoreField(MacroAssembler* masm,
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|
Builtins::Name storage_extend,
|
||
|
|
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->IsJSGlobalProxy()) {
|
||
|
|
__ CheckAccessGlobalProxy(receiver_reg, scratch, miss_label);
|
||
|
|
}
|
||
|
|
|
||
|
|
// Stub never generated for non-global objects that require access
|
||
|
|
// checks.
|
||
|
|
ASSERT(object->IsJSGlobalProxy() || !object->IsAccessCheckNeeded());
|
||
|
|
|
||
|
|
// Perform map transition for the receiver if necessary.
|
||
|
|
if ((transition != NULL) && (object->map()->unused_property_fields() == 0)) {
|
||
|
|
// The properties must be extended before we can store the value.
|
||
|
|
// We jump to a runtime call that extends the properties array.
|
||
|
|
__ mov(ecx, Immediate(Handle<Map>(transition)));
|
||
|
|
Handle<Code> ic(Builtins::builtin(storage_extend));
|
||
|
|
__ jmp(ic, RelocInfo::CODE_TARGET);
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
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)));
|
||
|
|
}
|
||
|
|
|
||
|
|
// Adjust for the number of properties stored in the object. Even in the
|
||
|
|
// face of a transition we can use the old map here because the size of the
|
||
|
|
// object and the number of in-object properties is not going to change.
|
||
|
|
index -= object->map()->inobject_properties();
|
||
|
|
|
||
|
|
if (index < 0) {
|
||
|
|
// Set the property straight into the object.
|
||
|
|
int offset = object->map()->instance_size() + (index * kPointerSize);
|
||
|
|
__ mov(FieldOperand(receiver_reg, 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(receiver_reg, offset, name_reg, scratch);
|
||
|
|
} else {
|
||
|
|
// Write to the properties array.
|
||
|
|
int offset = index * kPointerSize + Array::kHeaderSize;
|
||
|
|
// Get the properties array (optimistically).
|
||
|
|
__ mov(scratch, FieldOperand(receiver_reg, JSObject::kPropertiesOffset));
|
||
|
|
__ 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 __
|
||
|
|
|
||
|
16 years ago
|
#define __ ACCESS_MASM(masm())
|
||
|
16 years ago
|
|
||
|
|
|
||
|
|
// 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(edi);
|
||
|
|
|
||
|
|
__ push(edi); // function is also the parameter to the runtime call
|
||
|
|
__ CallRuntime(Runtime::kLazyCompile, 1);
|
||
|
|
__ pop(edi);
|
||
|
|
|
||
|
|
// Tear down temporary frame.
|
||
|
|
__ LeaveInternalFrame();
|
||
|
|
|
||
|
|
// Do a tail-call of the compiled function.
|
||
|
|
__ lea(ecx, FieldOperand(eax, Code::kHeaderSize));
|
||
|
|
__ jmp(Operand(ecx));
|
||
|
|
|
||
|
|
return GetCodeWithFlags(flags, "LazyCompileStub");
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
Object* CallStubCompiler::CompileCallField(Object* object,
|
||
|
|
JSObject* holder,
|
||
|
|
int index,
|
||
|
|
String* name) {
|
||
|
|
// ----------- S t a t e -------------
|
||
|
|
// -----------------------------------
|
||
|
|
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 =
|
||
|
16 years ago
|
masm()->CheckMaps(JSObject::cast(object), edx, holder, ebx, ecx, &miss);
|
||
|
16 years ago
|
|
||
|
|
GenerateFastPropertyLoad(masm(), edi, reg, holder, index);
|
||
|
|
|
||
|
|
// Check that the function really is a function.
|
||
|
|
__ test(edi, Immediate(kSmiTagMask));
|
||
|
|
__ j(zero, &miss, not_taken);
|
||
|
|
__ CmpObjectType(edi, JS_FUNCTION_TYPE, ebx);
|
||
|
|
__ j(not_equal, &miss, not_taken);
|
||
|
|
|
||
|
|
// Patch the receiver on the stack with the global proxy if
|
||
|
|
// necessary.
|
||
|
|
if (object->IsGlobalObject()) {
|
||
|
|
__ mov(edx, FieldOperand(edx, GlobalObject::kGlobalReceiverOffset));
|
||
|
|
__ mov(Operand(esp, (argc + 1) * kPointerSize), edx);
|
||
|
|
}
|
||
|
|
|
||
|
|
// Invoke the function.
|
||
|
|
__ InvokeFunction(edi, arguments(), JUMP_FUNCTION);
|
||
|
|
|
||
|
|
// Handle call cache miss.
|
||
|
|
__ bind(&miss);
|
||
|
|
Handle<Code> ic = ComputeCallMiss(arguments().immediate());
|
||
|
|
__ jmp(ic, RelocInfo::CODE_TARGET);
|
||
|
|
|
||
|
|
// Return the generated code.
|
||
|
|
return GetCode(FIELD, name);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
Object* CallStubCompiler::CompileCallConstant(Object* object,
|
||
|
|
JSObject* holder,
|
||
|
|
JSFunction* function,
|
||
|
|
CheckType check) {
|
||
|
|
// ----------- S t a t e -------------
|
||
|
|
// -----------------------------------
|
||
|
|
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);
|
||
|
|
}
|
||
|
|
|
||
|
|
// Make sure that it's okay not to patch the on stack receiver
|
||
|
|
// unless we're doing a receiver map check.
|
||
|
|
ASSERT(!object->IsGlobalObject() || check == RECEIVER_MAP_CHECK);
|
||
|
|
|
||
|
|
switch (check) {
|
||
|
|
case RECEIVER_MAP_CHECK:
|
||
|
|
// Check that the maps haven't changed.
|
||
|
|
__ CheckMaps(JSObject::cast(object), edx, holder, ebx, ecx, &miss);
|
||
|
|
|
||
|
|
// Patch the receiver on the stack with the global proxy if
|
||
|
|
// necessary.
|
||
|
|
if (object->IsGlobalObject()) {
|
||
|
|
__ mov(edx, FieldOperand(edx, GlobalObject::kGlobalReceiverOffset));
|
||
|
|
__ mov(Operand(esp, (argc + 1) * kPointerSize), edx);
|
||
|
|
}
|
||
|
|
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);
|
||
|
|
__ CmpObjectType(edx, HEAP_NUMBER_TYPE, ecx);
|
||
|
|
__ 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(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(),
|
||
|
|
RelocInfo::CODE_TARGET, JUMP_FUNCTION);
|
||
|
|
|
||
|
|
// Handle call cache miss.
|
||
|
|
__ bind(&miss);
|
||
|
|
Handle<Code> ic = ComputeCallMiss(arguments().immediate());
|
||
|
|
__ jmp(ic, RelocInfo::CODE_TARGET);
|
||
|
|
|
||
|
|
// Return the generated code.
|
||
|
|
String* function_name = NULL;
|
||
|
|
if (function->shared()->name()->IsString()) {
|
||
|
|
function_name = String::cast(function->shared()->name());
|
||
|
|
}
|
||
|
|
return GetCode(CONSTANT_FUNCTION, function_name);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
Object* CallStubCompiler::CompileCallInterceptor(Object* object,
|
||
|
|
JSObject* holder,
|
||
|
|
String* name) {
|
||
|
|
// ----------- S t a t e -------------
|
||
|
|
// -----------------------------------
|
||
|
|
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 =
|
||
|
16 years ago
|
masm()->CheckMaps(JSObject::cast(object), edx, holder, ebx, ecx, &miss);
|
||
|
16 years ago
|
|
||
|
|
// Enter an internal frame.
|
||
|
|
__ EnterInternalFrame();
|
||
|
|
|
||
|
|
// Push arguments on the expression stack.
|
||
|
|
__ push(edx); // receiver
|
||
|
|
__ push(reg); // holder
|
||
|
|
__ push(Operand(ebp, (argc + 3) * kPointerSize)); // name
|
||
|
|
|
||
|
|
// Perform call.
|
||
|
|
ExternalReference load_interceptor =
|
||
|
|
ExternalReference(IC_Utility(IC::kLoadInterceptorProperty));
|
||
|
|
__ mov(eax, Immediate(3));
|
||
|
|
__ mov(ebx, Immediate(load_interceptor));
|
||
|
|
|
||
|
|
CEntryStub stub;
|
||
|
|
__ CallStub(&stub);
|
||
|
|
|
||
|
|
// Move result to edi and restore receiver.
|
||
|
|
__ mov(edi, eax);
|
||
|
|
__ mov(edx, Operand(ebp, (argc + 2) * kPointerSize)); // receiver
|
||
|
|
|
||
|
|
// Exit frame.
|
||
|
|
__ LeaveInternalFrame();
|
||
|
|
|
||
|
|
// Check that the function really is a function.
|
||
|
|
__ test(edi, Immediate(kSmiTagMask));
|
||
|
|
__ j(zero, &miss, not_taken);
|
||
|
|
__ CmpObjectType(edi, JS_FUNCTION_TYPE, ebx);
|
||
|
|
__ j(not_equal, &miss, not_taken);
|
||
|
|
|
||
|
|
// Patch the receiver on the stack with the global proxy if
|
||
|
|
// necessary.
|
||
|
|
if (object->IsGlobalObject()) {
|
||
|
|
__ mov(edx, FieldOperand(edx, GlobalObject::kGlobalReceiverOffset));
|
||
|
|
__ mov(Operand(esp, (argc + 1) * kPointerSize), edx);
|
||
|
|
}
|
||
|
|
|
||
|
|
// Invoke the function.
|
||
|
|
__ InvokeFunction(edi, arguments(), JUMP_FUNCTION);
|
||
|
|
|
||
|
|
// Handle load cache miss.
|
||
|
|
__ bind(&miss);
|
||
|
|
Handle<Code> ic = ComputeCallMiss(argc);
|
||
|
|
__ jmp(ic, RelocInfo::CODE_TARGET);
|
||
|
|
|
||
|
|
// Return the generated code.
|
||
|
|
return GetCode(INTERCEPTOR, name);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
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
|
||
|
|
// -----------------------------------
|
||
|
|
Label miss;
|
||
|
|
|
||
|
|
// Get the object from the stack.
|
||
|
|
__ mov(ebx, Operand(esp, 1 * kPointerSize));
|
||
|
|
|
||
|
|
// Generate store field code. Trashes the name register.
|
||
|
|
GenerateStoreField(masm(),
|
||
|
|
Builtins::StoreIC_ExtendStorage,
|
||
|
|
object,
|
||
|
|
index,
|
||
|
|
transition,
|
||
|
|
ebx, ecx, edx,
|
||
|
|
&miss);
|
||
|
|
|
||
|
|
// Handle store cache miss.
|
||
|
|
__ bind(&miss);
|
||
|
|
__ mov(ecx, Immediate(Handle<String>(name))); // restore name
|
||
|
|
Handle<Code> ic(Builtins::builtin(Builtins::StoreIC_Miss));
|
||
|
|
__ jmp(ic, RelocInfo::CODE_TARGET);
|
||
|
|
|
||
|
|
// Return the generated code.
|
||
|
|
return GetCode(transition == NULL ? FIELD : MAP_TRANSITION, name);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
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
|
||
|
|
// -----------------------------------
|
||
|
|
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->IsJSGlobalProxy()) {
|
||
|
|
__ CheckAccessGlobalProxy(ebx, edx, &miss);
|
||
|
|
}
|
||
|
|
|
||
|
|
// Stub never generated for non-global objects that require access
|
||
|
|
// checks.
|
||
|
|
ASSERT(object->IsJSGlobalProxy() || !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 runtime system.
|
||
|
|
ExternalReference store_callback_property =
|
||
|
|
ExternalReference(IC_Utility(IC::kStoreCallbackProperty));
|
||
|
|
__ TailCallRuntime(store_callback_property, 4);
|
||
|
|
|
||
|
|
// Handle store cache miss.
|
||
|
|
__ bind(&miss);
|
||
|
|
__ mov(ecx, Immediate(Handle<String>(name))); // restore name
|
||
|
|
Handle<Code> ic(Builtins::builtin(Builtins::StoreIC_Miss));
|
||
|
|
__ jmp(ic, RelocInfo::CODE_TARGET);
|
||
|
|
|
||
|
|
// Return the generated code.
|
||
|
|
return GetCode(CALLBACKS, name);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
Object* StoreStubCompiler::CompileStoreInterceptor(JSObject* receiver,
|
||
|
|
String* name) {
|
||
|
|
// ----------- S t a t e -------------
|
||
|
|
// -- eax : value
|
||
|
|
// -- ecx : name
|
||
|
|
// -- esp[0] : return address
|
||
|
|
// -- esp[4] : receiver
|
||
|
|
// -----------------------------------
|
||
|
|
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->IsJSGlobalProxy()) {
|
||
|
|
__ CheckAccessGlobalProxy(ebx, edx, &miss);
|
||
|
|
}
|
||
|
|
|
||
|
|
// Stub never generated for non-global objects that require access
|
||
|
|
// checks.
|
||
|
|
ASSERT(receiver->IsJSGlobalProxy() || !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 runtime system.
|
||
|
|
ExternalReference store_ic_property =
|
||
|
|
ExternalReference(IC_Utility(IC::kStoreInterceptorProperty));
|
||
|
|
__ TailCallRuntime(store_ic_property, 3);
|
||
|
|
|
||
|
|
// Handle store cache miss.
|
||
|
|
__ bind(&miss);
|
||
|
|
__ mov(ecx, Immediate(Handle<String>(name))); // restore name
|
||
|
|
Handle<Code> ic(Builtins::builtin(Builtins::StoreIC_Miss));
|
||
|
|
__ jmp(ic, RelocInfo::CODE_TARGET);
|
||
|
|
|
||
|
|
// Return the generated code.
|
||
|
|
return GetCode(INTERCEPTOR, name);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
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
|
||
|
|
// -----------------------------------
|
||
|
|
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(),
|
||
|
|
Builtins::KeyedStoreIC_ExtendStorage,
|
||
|
|
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, RelocInfo::CODE_TARGET);
|
||
|
|
|
||
|
|
// Return the generated code.
|
||
|
|
return GetCode(transition == NULL ? FIELD : MAP_TRANSITION, name);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
Object* LoadStubCompiler::CompileLoadField(JSObject* object,
|
||
|
|
JSObject* holder,
|
||
|
|
int index,
|
||
|
|
String* name) {
|
||
|
|
// ----------- S t a t e -------------
|
||
|
|
// -- ecx : name
|
||
|
|
// -- esp[0] : return address
|
||
|
|
// -- esp[4] : receiver
|
||
|
|
// -----------------------------------
|
||
|
|
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, name);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
Object* LoadStubCompiler::CompileLoadCallback(JSObject* object,
|
||
|
|
JSObject* holder,
|
||
|
|
AccessorInfo* callback,
|
||
|
|
String* name) {
|
||
|
|
// ----------- S t a t e -------------
|
||
|
|
// -- ecx : name
|
||
|
|
// -- esp[0] : return address
|
||
|
|
// -- esp[4] : receiver
|
||
|
|
// -----------------------------------
|
||
|
|
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, name);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
Object* LoadStubCompiler::CompileLoadConstant(JSObject* object,
|
||
|
|
JSObject* holder,
|
||
|
|
Object* value,
|
||
|
|
String* name) {
|
||
|
|
// ----------- S t a t e -------------
|
||
|
|
// -- ecx : name
|
||
|
|
// -- esp[0] : return address
|
||
|
|
// -- esp[4] : receiver
|
||
|
|
// -----------------------------------
|
||
|
|
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, name);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
Object* LoadStubCompiler::CompileLoadInterceptor(JSObject* receiver,
|
||
|
|
JSObject* holder,
|
||
|
|
String* name) {
|
||
|
|
// ----------- S t a t e -------------
|
||
|
|
// -- ecx : name
|
||
|
|
// -- esp[0] : return address
|
||
|
|
// -- esp[4] : receiver
|
||
|
|
// -----------------------------------
|
||
|
|
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, name);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
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
|
||
|
|
// -----------------------------------
|
||
|
|
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, name);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
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
|
||
|
|
// -----------------------------------
|
||
|
|
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, name);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
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
|
||
|
|
// -----------------------------------
|
||
|
|
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, name);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
Object* KeyedLoadStubCompiler::CompileLoadInterceptor(JSObject* receiver,
|
||
|
|
JSObject* holder,
|
||
|
|
String* name) {
|
||
|
|
// ----------- S t a t e -------------
|
||
|
|
// -- esp[0] : return address
|
||
|
|
// -- esp[4] : name
|
||
|
|
// -- esp[8] : receiver
|
||
|
|
// -----------------------------------
|
||
|
|
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, name);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
Object* KeyedLoadStubCompiler::CompileLoadArrayLength(String* name) {
|
||
|
|
// ----------- S t a t e -------------
|
||
|
|
// -- esp[0] : return address
|
||
|
|
// -- esp[4] : name
|
||
|
|
// -- esp[8] : receiver
|
||
|
|
// -----------------------------------
|
||
|
|
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, name);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
Object* KeyedLoadStubCompiler::CompileLoadStringLength(String* name) {
|
||
|
|
// ----------- S t a t e -------------
|
||
|
|
// -- esp[0] : return address
|
||
|
|
// -- esp[4] : name
|
||
|
|
// -- esp[8] : receiver
|
||
|
|
// -----------------------------------
|
||
|
|
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);
|
||
|
|
|
||
|
|
GenerateLoadStringLength(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, name);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
Object* KeyedLoadStubCompiler::CompileLoadFunctionPrototype(String* name) {
|
||
|
|
// ----------- S t a t e -------------
|
||
|
|
// -- esp[0] : return address
|
||
|
|
// -- esp[4] : name
|
||
|
|
// -- esp[8] : receiver
|
||
|
|
// -----------------------------------
|
||
|
|
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, name);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
#undef __
|
||
|
|
|
||
|
|
} } // namespace v8::internal
|