1a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// Copyright 2009 the V8 project authors. All rights reserved. 2a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// Redistribution and use in source and binary forms, with or without 3a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// modification, are permitted provided that the following conditions are 4a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// met: 5a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// 6a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// * Redistributions of source code must retain the above copyright 7a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// notice, this list of conditions and the following disclaimer. 8a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// * Redistributions in binary form must reproduce the above 9a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// copyright notice, this list of conditions and the following 10a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// disclaimer in the documentation and/or other materials provided 11a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// with the distribution. 12a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// * Neither the name of Google Inc. nor the names of its 13a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// contributors may be used to endorse or promote products derived 14a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// from this software without specific prior written permission. 15a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// 16a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 28a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block#include "v8.h" 29a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block#include "codegen-inl.h" 30a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block#include "macro-assembler.h" 31a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 32a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blocknamespace v8 { 33a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blocknamespace internal { 34a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 35a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block#define __ ACCESS_MASM(masm) 36a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 37e46be819fca9468a0cd4e74859ce0f778eb8ca60Leon Clarke 38e46be819fca9468a0cd4e74859ce0f778eb8ca60Leon Clarkevoid Builtins::Generate_Adaptor(MacroAssembler* masm, 39e46be819fca9468a0cd4e74859ce0f778eb8ca60Leon Clarke CFunctionId id, 40e46be819fca9468a0cd4e74859ce0f778eb8ca60Leon Clarke BuiltinExtraArguments extra_args) { 41e46be819fca9468a0cd4e74859ce0f778eb8ca60Leon Clarke // ----------- S t a t e ------------- 42e46be819fca9468a0cd4e74859ce0f778eb8ca60Leon Clarke // -- rax : number of arguments excluding receiver 43e46be819fca9468a0cd4e74859ce0f778eb8ca60Leon Clarke // -- rdi : called function (only guaranteed when 44e46be819fca9468a0cd4e74859ce0f778eb8ca60Leon Clarke // extra_args requires it) 45e46be819fca9468a0cd4e74859ce0f778eb8ca60Leon Clarke // -- rsi : context 46e46be819fca9468a0cd4e74859ce0f778eb8ca60Leon Clarke // -- rsp[0] : return address 47e46be819fca9468a0cd4e74859ce0f778eb8ca60Leon Clarke // -- rsp[8] : last argument 48e46be819fca9468a0cd4e74859ce0f778eb8ca60Leon Clarke // -- ... 49e46be819fca9468a0cd4e74859ce0f778eb8ca60Leon Clarke // -- rsp[8 * argc] : first argument (argc == rax) 50e46be819fca9468a0cd4e74859ce0f778eb8ca60Leon Clarke // -- rsp[8 * (argc +1)] : receiver 51e46be819fca9468a0cd4e74859ce0f778eb8ca60Leon Clarke // ----------------------------------- 52e46be819fca9468a0cd4e74859ce0f778eb8ca60Leon Clarke 53e46be819fca9468a0cd4e74859ce0f778eb8ca60Leon Clarke // Insert extra arguments. 54e46be819fca9468a0cd4e74859ce0f778eb8ca60Leon Clarke int num_extra_args = 0; 55e46be819fca9468a0cd4e74859ce0f778eb8ca60Leon Clarke if (extra_args == NEEDS_CALLED_FUNCTION) { 56e46be819fca9468a0cd4e74859ce0f778eb8ca60Leon Clarke num_extra_args = 1; 57e46be819fca9468a0cd4e74859ce0f778eb8ca60Leon Clarke __ pop(kScratchRegister); // Save return address. 58e46be819fca9468a0cd4e74859ce0f778eb8ca60Leon Clarke __ push(rdi); 59e46be819fca9468a0cd4e74859ce0f778eb8ca60Leon Clarke __ push(kScratchRegister); // Restore return address. 60e46be819fca9468a0cd4e74859ce0f778eb8ca60Leon Clarke } else { 61e46be819fca9468a0cd4e74859ce0f778eb8ca60Leon Clarke ASSERT(extra_args == NO_EXTRA_ARGUMENTS); 62e46be819fca9468a0cd4e74859ce0f778eb8ca60Leon Clarke } 63e46be819fca9468a0cd4e74859ce0f778eb8ca60Leon Clarke 64e46be819fca9468a0cd4e74859ce0f778eb8ca60Leon Clarke // JumpToRuntime expects rax to contain the number of arguments 65e46be819fca9468a0cd4e74859ce0f778eb8ca60Leon Clarke // including the receiver and the extra arguments. 66e46be819fca9468a0cd4e74859ce0f778eb8ca60Leon Clarke __ addq(rax, Immediate(num_extra_args + 1)); 67a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ JumpToRuntime(ExternalReference(id), 1); 68a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 69a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 70a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 71a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockstatic void EnterArgumentsAdaptorFrame(MacroAssembler* masm) { 72a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ push(rbp); 73a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ movq(rbp, rsp); 74a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 75a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Store the arguments adaptor context sentinel. 763ce2e2076e8e3e60cf1810eec160ea2d8557e9e7Steve Block __ Push(Smi::FromInt(StackFrame::ARGUMENTS_ADAPTOR)); 77a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 78a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Push the function on the stack. 79a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ push(rdi); 80a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 81a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Preserve the number of arguments on the stack. Must preserve both 82a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // rax and rbx because these registers are used when copying the 83a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // arguments and the receiver. 84a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ Integer32ToSmi(rcx, rax); 85a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ push(rcx); 86a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 87a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 88a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 89a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockstatic void LeaveArgumentsAdaptorFrame(MacroAssembler* masm) { 90a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Retrieve the number of arguments from the stack. Number is a Smi. 91a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ movq(rbx, Operand(rbp, ArgumentsAdaptorFrameConstants::kLengthOffset)); 92a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 93a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Leave the frame. 94a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ movq(rsp, rbp); 95a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ pop(rbp); 96a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 97a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Remove caller arguments from the stack. 98a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ pop(rcx); 993ce2e2076e8e3e60cf1810eec160ea2d8557e9e7Steve Block SmiIndex index = masm->SmiToIndex(rbx, rbx, kPointerSizeLog2); 1003ce2e2076e8e3e60cf1810eec160ea2d8557e9e7Steve Block __ lea(rsp, Operand(rsp, index.reg, index.scale, 1 * kPointerSize)); 101a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ push(rcx); 102a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 103a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 104a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 105a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockvoid Builtins::Generate_ArgumentsAdaptorTrampoline(MacroAssembler* masm) { 106a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // ----------- S t a t e ------------- 107a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // -- rax : actual number of arguments 108a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // -- rbx : expected number of arguments 109a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // -- rdx : code entry to call 110a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // ----------------------------------- 111a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 112a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Label invoke, dont_adapt_arguments; 113a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ IncrementCounter(&Counters::arguments_adaptors, 1); 114a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 115a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Label enough, too_few; 116a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ cmpq(rax, rbx); 117a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ j(less, &too_few); 118a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ cmpq(rbx, Immediate(SharedFunctionInfo::kDontAdaptArgumentsSentinel)); 119a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ j(equal, &dont_adapt_arguments); 120a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 121a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block { // Enough parameters: Actual >= expected. 122a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ bind(&enough); 123a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block EnterArgumentsAdaptorFrame(masm); 124a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 125a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Copy receiver and all expected arguments. 126a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block const int offset = StandardFrameConstants::kCallerSPOffset; 127a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ lea(rax, Operand(rbp, rax, times_pointer_size, offset)); 128a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ movq(rcx, Immediate(-1)); // account for receiver 129a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 130a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Label copy; 131a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ bind(©); 132a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ incq(rcx); 133a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ push(Operand(rax, 0)); 134a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ subq(rax, Immediate(kPointerSize)); 135a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ cmpq(rcx, rbx); 136a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ j(less, ©); 137a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ jmp(&invoke); 138a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 139a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 140a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block { // Too few parameters: Actual < expected. 141a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ bind(&too_few); 142a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block EnterArgumentsAdaptorFrame(masm); 143a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 144a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Copy receiver and all actual arguments. 145a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block const int offset = StandardFrameConstants::kCallerSPOffset; 146a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ lea(rdi, Operand(rbp, rax, times_pointer_size, offset)); 147a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ movq(rcx, Immediate(-1)); // account for receiver 148a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 149a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Label copy; 150a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ bind(©); 151a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ incq(rcx); 152a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ push(Operand(rdi, 0)); 153a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ subq(rdi, Immediate(kPointerSize)); 154a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ cmpq(rcx, rax); 155a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ j(less, ©); 156a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 157a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Fill remaining expected arguments with undefined values. 158a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Label fill; 159a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ LoadRoot(kScratchRegister, Heap::kUndefinedValueRootIndex); 160a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ bind(&fill); 161a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ incq(rcx); 162a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ push(kScratchRegister); 163a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ cmpq(rcx, rbx); 164a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ j(less, &fill); 165a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 166a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Restore function pointer. 167a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ movq(rdi, Operand(rbp, JavaScriptFrameConstants::kFunctionOffset)); 168a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 169a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 170a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Call the entry point. 171a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ bind(&invoke); 172a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ call(rdx); 173a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 174a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Leave frame and return. 175a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block LeaveArgumentsAdaptorFrame(masm); 176a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ ret(0); 177a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 178a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // ------------------------------------------- 179a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Dont adapt arguments. 180a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // ------------------------------------------- 181a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ bind(&dont_adapt_arguments); 182a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ jmp(rdx); 183a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 184a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 185a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 186a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockvoid Builtins::Generate_FunctionCall(MacroAssembler* masm) { 187a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Stack Layout: 188402d937239b0e2fd11bf2f4fe972ad78aa9fd481Andrei Popescu // rsp[0]: Return address 189402d937239b0e2fd11bf2f4fe972ad78aa9fd481Andrei Popescu // rsp[1]: Argument n 190402d937239b0e2fd11bf2f4fe972ad78aa9fd481Andrei Popescu // rsp[2]: Argument n-1 191a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // ... 192402d937239b0e2fd11bf2f4fe972ad78aa9fd481Andrei Popescu // rsp[n]: Argument 1 193402d937239b0e2fd11bf2f4fe972ad78aa9fd481Andrei Popescu // rsp[n+1]: Receiver (function to call) 194a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // 195402d937239b0e2fd11bf2f4fe972ad78aa9fd481Andrei Popescu // rax contains the number of arguments, n, not counting the receiver. 196a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // 197a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // 1. Make sure we have at least one argument. 198a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block { Label done; 199a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ testq(rax, rax); 200a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ j(not_zero, &done); 201a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ pop(rbx); 202a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ Push(Factory::undefined_value()); 203a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ push(rbx); 204a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ incq(rax); 205a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ bind(&done); 206a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 207a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 208402d937239b0e2fd11bf2f4fe972ad78aa9fd481Andrei Popescu // 2. Get the function to call (passed as receiver) from the stack, check 209402d937239b0e2fd11bf2f4fe972ad78aa9fd481Andrei Popescu // if it is a function. 210402d937239b0e2fd11bf2f4fe972ad78aa9fd481Andrei Popescu Label non_function; 211402d937239b0e2fd11bf2f4fe972ad78aa9fd481Andrei Popescu // The function to call is at position n+1 on the stack. 212402d937239b0e2fd11bf2f4fe972ad78aa9fd481Andrei Popescu __ movq(rdi, Operand(rsp, rax, times_pointer_size, 1 * kPointerSize)); 213402d937239b0e2fd11bf2f4fe972ad78aa9fd481Andrei Popescu __ JumpIfSmi(rdi, &non_function); 214402d937239b0e2fd11bf2f4fe972ad78aa9fd481Andrei Popescu __ CmpObjectType(rdi, JS_FUNCTION_TYPE, rcx); 215402d937239b0e2fd11bf2f4fe972ad78aa9fd481Andrei Popescu __ j(not_equal, &non_function); 216a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 217402d937239b0e2fd11bf2f4fe972ad78aa9fd481Andrei Popescu // 3a. Patch the first argument if necessary when calling a function. 218402d937239b0e2fd11bf2f4fe972ad78aa9fd481Andrei Popescu Label shift_arguments; 219402d937239b0e2fd11bf2f4fe972ad78aa9fd481Andrei Popescu { Label convert_to_object, use_global_receiver, patch_receiver; 220402d937239b0e2fd11bf2f4fe972ad78aa9fd481Andrei Popescu // Change context eagerly in case we need the global receiver. 221a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ movq(rsi, FieldOperand(rdi, JSFunction::kContextOffset)); 222a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 223a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ movq(rbx, Operand(rsp, rax, times_pointer_size, 0)); 224402d937239b0e2fd11bf2f4fe972ad78aa9fd481Andrei Popescu __ JumpIfSmi(rbx, &convert_to_object); 225a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 226a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ CompareRoot(rbx, Heap::kNullValueRootIndex); 227a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ j(equal, &use_global_receiver); 228a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ CompareRoot(rbx, Heap::kUndefinedValueRootIndex); 229a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ j(equal, &use_global_receiver); 230a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 231a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ CmpObjectType(rbx, FIRST_JS_OBJECT_TYPE, rcx); 232402d937239b0e2fd11bf2f4fe972ad78aa9fd481Andrei Popescu __ j(below, &convert_to_object); 233a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ CmpInstanceType(rcx, LAST_JS_OBJECT_TYPE); 234402d937239b0e2fd11bf2f4fe972ad78aa9fd481Andrei Popescu __ j(below_equal, &shift_arguments); 235a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 236402d937239b0e2fd11bf2f4fe972ad78aa9fd481Andrei Popescu __ bind(&convert_to_object); 237402d937239b0e2fd11bf2f4fe972ad78aa9fd481Andrei Popescu __ EnterInternalFrame(); // In order to preserve argument count. 238a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ Integer32ToSmi(rax, rax); 239a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ push(rax); 240a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 241a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ push(rbx); 242a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ InvokeBuiltin(Builtins::TO_OBJECT, CALL_FUNCTION); 243a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ movq(rbx, rax); 244a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 245a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ pop(rax); 246a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ SmiToInteger32(rax, rax); 247a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ LeaveInternalFrame(); 248402d937239b0e2fd11bf2f4fe972ad78aa9fd481Andrei Popescu // Restore the function to rdi. 249402d937239b0e2fd11bf2f4fe972ad78aa9fd481Andrei Popescu __ movq(rdi, Operand(rsp, rax, times_pointer_size, 1 * kPointerSize)); 250a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ jmp(&patch_receiver); 251a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 252402d937239b0e2fd11bf2f4fe972ad78aa9fd481Andrei Popescu // Use the global receiver object from the called function as the 253402d937239b0e2fd11bf2f4fe972ad78aa9fd481Andrei Popescu // receiver. 254a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ bind(&use_global_receiver); 255a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block const int kGlobalIndex = 256a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Context::kHeaderSize + Context::GLOBAL_INDEX * kPointerSize; 257a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ movq(rbx, FieldOperand(rsi, kGlobalIndex)); 258d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block __ movq(rbx, FieldOperand(rbx, GlobalObject::kGlobalContextOffset)); 259d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block __ movq(rbx, FieldOperand(rbx, kGlobalIndex)); 260a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ movq(rbx, FieldOperand(rbx, GlobalObject::kGlobalReceiverOffset)); 261a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 262a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ bind(&patch_receiver); 263a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ movq(Operand(rsp, rax, times_pointer_size, 0), rbx); 264a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 265402d937239b0e2fd11bf2f4fe972ad78aa9fd481Andrei Popescu __ jmp(&shift_arguments); 266a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 267a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 268402d937239b0e2fd11bf2f4fe972ad78aa9fd481Andrei Popescu 269402d937239b0e2fd11bf2f4fe972ad78aa9fd481Andrei Popescu // 3b. Patch the first argument when calling a non-function. The 270402d937239b0e2fd11bf2f4fe972ad78aa9fd481Andrei Popescu // CALL_NON_FUNCTION builtin expects the non-function callee as 271402d937239b0e2fd11bf2f4fe972ad78aa9fd481Andrei Popescu // receiver, so overwrite the first argument which will ultimately 272402d937239b0e2fd11bf2f4fe972ad78aa9fd481Andrei Popescu // become the receiver. 273402d937239b0e2fd11bf2f4fe972ad78aa9fd481Andrei Popescu __ bind(&non_function); 274402d937239b0e2fd11bf2f4fe972ad78aa9fd481Andrei Popescu __ movq(Operand(rsp, rax, times_pointer_size, 0), rdi); 275402d937239b0e2fd11bf2f4fe972ad78aa9fd481Andrei Popescu __ xor_(rdi, rdi); 276402d937239b0e2fd11bf2f4fe972ad78aa9fd481Andrei Popescu 277402d937239b0e2fd11bf2f4fe972ad78aa9fd481Andrei Popescu // 4. Shift arguments and return address one slot down on the stack 278402d937239b0e2fd11bf2f4fe972ad78aa9fd481Andrei Popescu // (overwriting the original receiver). Adjust argument count to make 279402d937239b0e2fd11bf2f4fe972ad78aa9fd481Andrei Popescu // the original first argument the new receiver. 280402d937239b0e2fd11bf2f4fe972ad78aa9fd481Andrei Popescu __ bind(&shift_arguments); 281a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block { Label loop; 282402d937239b0e2fd11bf2f4fe972ad78aa9fd481Andrei Popescu __ movq(rcx, rax); 283a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ bind(&loop); 284a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ movq(rbx, Operand(rsp, rcx, times_pointer_size, 0)); 285a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ movq(Operand(rsp, rcx, times_pointer_size, 1 * kPointerSize), rbx); 286a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ decq(rcx); 287402d937239b0e2fd11bf2f4fe972ad78aa9fd481Andrei Popescu __ j(not_sign, &loop); // While non-negative (to copy return address). 288402d937239b0e2fd11bf2f4fe972ad78aa9fd481Andrei Popescu __ pop(rbx); // Discard copy of return address. 289402d937239b0e2fd11bf2f4fe972ad78aa9fd481Andrei Popescu __ decq(rax); // One fewer argument (first argument is new receiver). 290a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 291a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 292402d937239b0e2fd11bf2f4fe972ad78aa9fd481Andrei Popescu // 5a. Call non-function via tail call to CALL_NON_FUNCTION builtin. 293402d937239b0e2fd11bf2f4fe972ad78aa9fd481Andrei Popescu { Label function; 294a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ testq(rdi, rdi); 295402d937239b0e2fd11bf2f4fe972ad78aa9fd481Andrei Popescu __ j(not_zero, &function); 296a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ xor_(rbx, rbx); 297a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ GetBuiltinEntry(rdx, Builtins::CALL_NON_FUNCTION); 298a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ Jump(Handle<Code>(builtin(ArgumentsAdaptorTrampoline)), 299a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block RelocInfo::CODE_TARGET); 300402d937239b0e2fd11bf2f4fe972ad78aa9fd481Andrei Popescu __ bind(&function); 301a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 302a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 303402d937239b0e2fd11bf2f4fe972ad78aa9fd481Andrei Popescu // 5b. Get the code to call from the function and check that the number of 304402d937239b0e2fd11bf2f4fe972ad78aa9fd481Andrei Popescu // expected arguments matches what we're providing. If so, jump 305402d937239b0e2fd11bf2f4fe972ad78aa9fd481Andrei Popescu // (tail-call) to the code in register edx without checking arguments. 306402d937239b0e2fd11bf2f4fe972ad78aa9fd481Andrei Popescu __ movq(rdx, FieldOperand(rdi, JSFunction::kSharedFunctionInfoOffset)); 307402d937239b0e2fd11bf2f4fe972ad78aa9fd481Andrei Popescu __ movsxlq(rbx, 308402d937239b0e2fd11bf2f4fe972ad78aa9fd481Andrei Popescu FieldOperand(rdx, SharedFunctionInfo::kFormalParameterCountOffset)); 309402d937239b0e2fd11bf2f4fe972ad78aa9fd481Andrei Popescu __ movq(rdx, FieldOperand(rdx, SharedFunctionInfo::kCodeOffset)); 310402d937239b0e2fd11bf2f4fe972ad78aa9fd481Andrei Popescu __ lea(rdx, FieldOperand(rdx, Code::kHeaderSize)); 311402d937239b0e2fd11bf2f4fe972ad78aa9fd481Andrei Popescu __ cmpq(rax, rbx); 312402d937239b0e2fd11bf2f4fe972ad78aa9fd481Andrei Popescu __ j(not_equal, 313402d937239b0e2fd11bf2f4fe972ad78aa9fd481Andrei Popescu Handle<Code>(builtin(ArgumentsAdaptorTrampoline)), 314402d937239b0e2fd11bf2f4fe972ad78aa9fd481Andrei Popescu RelocInfo::CODE_TARGET); 315402d937239b0e2fd11bf2f4fe972ad78aa9fd481Andrei Popescu 316a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block ParameterCount expected(0); 317a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ InvokeCode(rdx, expected, expected, JUMP_FUNCTION); 318a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 319a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 320a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 321a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockvoid Builtins::Generate_FunctionApply(MacroAssembler* masm) { 322a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Stack at entry: 323a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // rsp: return address 324a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // rsp+8: arguments 325a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // rsp+16: receiver ("this") 326a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // rsp+24: function 327a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ EnterInternalFrame(); 328a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Stack frame: 329a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // rbp: Old base pointer 330a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // rbp[1]: return address 331a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // rbp[2]: function arguments 332a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // rbp[3]: receiver 333a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // rbp[4]: function 334a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block static const int kArgumentsOffset = 2 * kPointerSize; 335a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block static const int kReceiverOffset = 3 * kPointerSize; 336a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block static const int kFunctionOffset = 4 * kPointerSize; 337a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ push(Operand(rbp, kFunctionOffset)); 338a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ push(Operand(rbp, kArgumentsOffset)); 339a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ InvokeBuiltin(Builtins::APPLY_PREPARE, CALL_FUNCTION); 340a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 341d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block // Check the stack for overflow. We are not trying need to catch 342d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block // interruptions (e.g. debug break and preemption) here, so the "real stack 343d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block // limit" is checked. 344d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block Label okay; 345d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block __ LoadRoot(kScratchRegister, Heap::kRealStackLimitRootIndex); 346d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block __ movq(rcx, rsp); 347d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block // Make rcx the space we have left. The stack might already be overflowed 348d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block // here which will cause rcx to become negative. 349d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block __ subq(rcx, kScratchRegister); 350d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block // Make rdx the space we need for the array when it is unrolled onto the 351d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block // stack. 352d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block __ PositiveSmiTimesPowerOfTwoToInteger64(rdx, rax, kPointerSizeLog2); 353d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block // Check if the arguments will overflow the stack. 354d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block __ cmpq(rcx, rdx); 355d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block __ j(greater, &okay); // Signed comparison. 356d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block 357d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block // Out of stack space. 358d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block __ push(Operand(rbp, kFunctionOffset)); 359d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block __ push(rax); 360d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block __ InvokeBuiltin(Builtins::APPLY_OVERFLOW, CALL_FUNCTION); 361d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block __ bind(&okay); 362d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block // End of stack check. 363a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 364a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Push current index and limit. 365a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block const int kLimitOffset = 366a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block StandardFrameConstants::kExpressionsOffset - 1 * kPointerSize; 367a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block const int kIndexOffset = kLimitOffset - 1 * kPointerSize; 368a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ push(rax); // limit 369a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ push(Immediate(0)); // index 370a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 371a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Change context eagerly to get the right global object if 372a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // necessary. 373a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ movq(rdi, Operand(rbp, kFunctionOffset)); 374a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ movq(rsi, FieldOperand(rdi, JSFunction::kContextOffset)); 375a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 376a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Compute the receiver. 377a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Label call_to_object, use_global_receiver, push_receiver; 378a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ movq(rbx, Operand(rbp, kReceiverOffset)); 379a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ JumpIfSmi(rbx, &call_to_object); 380a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ CompareRoot(rbx, Heap::kNullValueRootIndex); 381a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ j(equal, &use_global_receiver); 382a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ CompareRoot(rbx, Heap::kUndefinedValueRootIndex); 383a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ j(equal, &use_global_receiver); 384a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 385a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // If given receiver is already a JavaScript object then there's no 386a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // reason for converting it. 387a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ CmpObjectType(rbx, FIRST_JS_OBJECT_TYPE, rcx); 388a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ j(below, &call_to_object); 389a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ CmpInstanceType(rcx, LAST_JS_OBJECT_TYPE); 390a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ j(below_equal, &push_receiver); 391a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 392a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Convert the receiver to an object. 393a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ bind(&call_to_object); 394a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ push(rbx); 395a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ InvokeBuiltin(Builtins::TO_OBJECT, CALL_FUNCTION); 396a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ movq(rbx, rax); 397a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ jmp(&push_receiver); 398a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 399a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Use the current global receiver object as the receiver. 400a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ bind(&use_global_receiver); 401a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block const int kGlobalOffset = 402a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Context::kHeaderSize + Context::GLOBAL_INDEX * kPointerSize; 403a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ movq(rbx, FieldOperand(rsi, kGlobalOffset)); 404d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block __ movq(rbx, FieldOperand(rbx, GlobalObject::kGlobalContextOffset)); 405d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block __ movq(rbx, FieldOperand(rbx, kGlobalOffset)); 406a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ movq(rbx, FieldOperand(rbx, GlobalObject::kGlobalReceiverOffset)); 407a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 408a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Push the receiver. 409a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ bind(&push_receiver); 410a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ push(rbx); 411a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 412a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Copy all arguments from the array to the stack. 413a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Label entry, loop; 414a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ movq(rax, Operand(rbp, kIndexOffset)); 415a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ jmp(&entry); 416a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ bind(&loop); 417a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ movq(rcx, Operand(rbp, kArgumentsOffset)); // load arguments 418a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ push(rcx); 419a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ push(rax); 420a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 421a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Use inline caching to speed up access to arguments. 422a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Handle<Code> ic(Builtins::builtin(Builtins::KeyedLoadIC_Initialize)); 423a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ Call(ic, RelocInfo::CODE_TARGET); 424a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // It is important that we do not have a test instruction after the 425a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // call. A test instruction after the call is used to indicate that 426a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // we have generated an inline version of the keyed load. In this 427a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // case, we know that we are not generating a test instruction next. 428a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 429a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Remove IC arguments from the stack and push the nth argument. 430a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ addq(rsp, Immediate(2 * kPointerSize)); 431a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ push(rax); 432a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 433a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Update the index on the stack and in register rax. 434a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ movq(rax, Operand(rbp, kIndexOffset)); 4353ce2e2076e8e3e60cf1810eec160ea2d8557e9e7Steve Block __ SmiAddConstant(rax, rax, Smi::FromInt(1)); 436a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ movq(Operand(rbp, kIndexOffset), rax); 437a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 438a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ bind(&entry); 439a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ cmpq(rax, Operand(rbp, kLimitOffset)); 440a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ j(not_equal, &loop); 441a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 442a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Invoke the function. 443a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block ParameterCount actual(rax); 444a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ SmiToInteger32(rax, rax); 445a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ movq(rdi, Operand(rbp, kFunctionOffset)); 446a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ InvokeFunction(rdi, actual, CALL_FUNCTION); 447a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 448a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ LeaveInternalFrame(); 449a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ ret(3 * kPointerSize); // remove function, receiver, and arguments 450a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 451a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 452a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 453a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// Load the built-in Array function from the current context. 454a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockstatic void GenerateLoadArrayFunction(MacroAssembler* masm, Register result) { 455a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Load the global context. 456a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ movq(result, Operand(rsi, Context::SlotOffset(Context::GLOBAL_INDEX))); 457a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ movq(result, FieldOperand(result, GlobalObject::kGlobalContextOffset)); 458a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Load the Array function from the global context. 459a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ movq(result, 460a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Operand(result, Context::SlotOffset(Context::ARRAY_FUNCTION_INDEX))); 461a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 462a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 463a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 464a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// Number of empty elements to allocate for an empty array. 465a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockstatic const int kPreallocatedArrayElements = 4; 466a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 467a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 468a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// Allocate an empty JSArray. The allocated array is put into the result 469a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// register. If the parameter initial_capacity is larger than zero an elements 470a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// backing store is allocated with this size and filled with the hole values. 471a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// Otherwise the elements backing store is set to the empty FixedArray. 472a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockstatic void AllocateEmptyJSArray(MacroAssembler* masm, 473a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Register array_function, 474a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Register result, 475a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Register scratch1, 476a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Register scratch2, 477a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Register scratch3, 478a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block int initial_capacity, 479a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Label* gc_required) { 480a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block ASSERT(initial_capacity >= 0); 481a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 482a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Load the initial map from the array function. 483a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ movq(scratch1, FieldOperand(array_function, 484a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block JSFunction::kPrototypeOrInitialMapOffset)); 485a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 486a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Allocate the JSArray object together with space for a fixed array with the 487a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // requested elements. 488a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block int size = JSArray::kSize; 489a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block if (initial_capacity > 0) { 490a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block size += FixedArray::SizeFor(initial_capacity); 491a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 492a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ AllocateInNewSpace(size, 493a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block result, 494a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block scratch2, 495a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block scratch3, 496a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block gc_required, 497a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block TAG_OBJECT); 498a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 499a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Allocated the JSArray. Now initialize the fields except for the elements 500a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // array. 501a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // result: JSObject 502a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // scratch1: initial map 503a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // scratch2: start of next object 504a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ movq(FieldOperand(result, JSObject::kMapOffset), scratch1); 505a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ Move(FieldOperand(result, JSArray::kPropertiesOffset), 506a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Factory::empty_fixed_array()); 507a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Field JSArray::kElementsOffset is initialized later. 5083ce2e2076e8e3e60cf1810eec160ea2d8557e9e7Steve Block __ Move(FieldOperand(result, JSArray::kLengthOffset), Smi::FromInt(0)); 509a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 510a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // If no storage is requested for the elements array just set the empty 511a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // fixed array. 512a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block if (initial_capacity == 0) { 513a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ Move(FieldOperand(result, JSArray::kElementsOffset), 514a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Factory::empty_fixed_array()); 515a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block return; 516a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 517a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 518a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Calculate the location of the elements array and set elements array member 519a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // of the JSArray. 520a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // result: JSObject 521a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // scratch2: start of next object 522a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ lea(scratch1, Operand(result, JSArray::kSize)); 523a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ movq(FieldOperand(result, JSArray::kElementsOffset), scratch1); 524a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 525a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Initialize the FixedArray and fill it with holes. FixedArray length is not 526a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // stored as a smi. 527a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // result: JSObject 528a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // scratch1: elements array 529a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // scratch2: start of next object 530a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ Move(FieldOperand(scratch1, JSObject::kMapOffset), 531a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Factory::fixed_array_map()); 532a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ movq(FieldOperand(scratch1, Array::kLengthOffset), 533a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Immediate(initial_capacity)); 534a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 535a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Fill the FixedArray with the hole value. Inline the code if short. 536a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Reconsider loop unfolding if kPreallocatedArrayElements gets changed. 537a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block static const int kLoopUnfoldLimit = 4; 538a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block ASSERT(kPreallocatedArrayElements <= kLoopUnfoldLimit); 539a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ Move(scratch3, Factory::the_hole_value()); 540a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block if (initial_capacity <= kLoopUnfoldLimit) { 541a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Use a scratch register here to have only one reloc info when unfolding 542a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // the loop. 543a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block for (int i = 0; i < initial_capacity; i++) { 544a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ movq(FieldOperand(scratch1, 545a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block FixedArray::kHeaderSize + i * kPointerSize), 546a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block scratch3); 547a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 548a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } else { 549a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Label loop, entry; 550a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ jmp(&entry); 551a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ bind(&loop); 552a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ movq(Operand(scratch1, 0), scratch3); 553a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ addq(scratch1, Immediate(kPointerSize)); 554a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ bind(&entry); 555a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ cmpq(scratch1, scratch2); 556a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ j(below, &loop); 557a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 558a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 559a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 560a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 561a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// Allocate a JSArray with the number of elements stored in a register. The 562a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// register array_function holds the built-in Array function and the register 563a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// array_size holds the size of the array as a smi. The allocated array is put 564a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// into the result register and beginning and end of the FixedArray elements 565a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// storage is put into registers elements_array and elements_array_end (see 566a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// below for when that is not the case). If the parameter fill_with_holes is 567a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// true the allocated elements backing store is filled with the hole values 568a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// otherwise it is left uninitialized. When the backing store is filled the 569a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// register elements_array is scratched. 570a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockstatic void AllocateJSArray(MacroAssembler* masm, 571a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Register array_function, // Array function. 572a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Register array_size, // As a smi. 573a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Register result, 574a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Register elements_array, 575a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Register elements_array_end, 576a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Register scratch, 577a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block bool fill_with_hole, 578a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Label* gc_required) { 579a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Label not_empty, allocated; 580a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 581a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Load the initial map from the array function. 582a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ movq(elements_array, 583a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block FieldOperand(array_function, 584a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block JSFunction::kPrototypeOrInitialMapOffset)); 585a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 586a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Check whether an empty sized array is requested. 587402d937239b0e2fd11bf2f4fe972ad78aa9fd481Andrei Popescu __ SmiToInteger64(array_size, array_size); 588a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ testq(array_size, array_size); 589a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ j(not_zero, ¬_empty); 590a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 591a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // If an empty array is requested allocate a small elements array anyway. This 592a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // keeps the code below free of special casing for the empty array. 593a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block int size = JSArray::kSize + FixedArray::SizeFor(kPreallocatedArrayElements); 594a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ AllocateInNewSpace(size, 595a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block result, 596a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block elements_array_end, 597a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block scratch, 598a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block gc_required, 599a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block TAG_OBJECT); 600a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ jmp(&allocated); 601a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 602a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Allocate the JSArray object together with space for a FixedArray with the 603a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // requested elements. 604a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ bind(¬_empty); 605a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block ASSERT(kSmiTagSize == 1 && kSmiTag == 0); 606a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ AllocateInNewSpace(JSArray::kSize + FixedArray::kHeaderSize, 607402d937239b0e2fd11bf2f4fe972ad78aa9fd481Andrei Popescu times_pointer_size, 608a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block array_size, 609a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block result, 610a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block elements_array_end, 611a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block scratch, 612a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block gc_required, 613a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block TAG_OBJECT); 614a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 615a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Allocated the JSArray. Now initialize the fields except for the elements 616a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // array. 617a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // result: JSObject 618a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // elements_array: initial map 619a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // elements_array_end: start of next object 620402d937239b0e2fd11bf2f4fe972ad78aa9fd481Andrei Popescu // array_size: size of array 621a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ bind(&allocated); 622a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ movq(FieldOperand(result, JSObject::kMapOffset), elements_array); 623a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ Move(elements_array, Factory::empty_fixed_array()); 624a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ movq(FieldOperand(result, JSArray::kPropertiesOffset), elements_array); 625a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Field JSArray::kElementsOffset is initialized later. 626402d937239b0e2fd11bf2f4fe972ad78aa9fd481Andrei Popescu __ Integer32ToSmi(scratch, array_size); 627402d937239b0e2fd11bf2f4fe972ad78aa9fd481Andrei Popescu __ movq(FieldOperand(result, JSArray::kLengthOffset), scratch); 628a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 629a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Calculate the location of the elements array and set elements array member 630a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // of the JSArray. 631a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // result: JSObject 632a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // elements_array_end: start of next object 633402d937239b0e2fd11bf2f4fe972ad78aa9fd481Andrei Popescu // array_size: size of array 634a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ lea(elements_array, Operand(result, JSArray::kSize)); 635a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ movq(FieldOperand(result, JSArray::kElementsOffset), elements_array); 636a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 637a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Initialize the fixed array. FixedArray length is not stored as a smi. 638a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // result: JSObject 639a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // elements_array: elements array 640a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // elements_array_end: start of next object 641402d937239b0e2fd11bf2f4fe972ad78aa9fd481Andrei Popescu // array_size: size of array 642a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block ASSERT(kSmiTag == 0); 643a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ Move(FieldOperand(elements_array, JSObject::kMapOffset), 644a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Factory::fixed_array_map()); 645a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Label not_empty_2, fill_array; 646a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ testq(array_size, array_size); 647a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ j(not_zero, ¬_empty_2); 648a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Length of the FixedArray is the number of pre-allocated elements even 649a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // though the actual JSArray has length 0. 650a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ movq(FieldOperand(elements_array, Array::kLengthOffset), 651a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Immediate(kPreallocatedArrayElements)); 652a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ jmp(&fill_array); 653a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ bind(¬_empty_2); 654a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // For non-empty JSArrays the length of the FixedArray and the JSArray is the 655a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // same. 656a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ movq(FieldOperand(elements_array, Array::kLengthOffset), array_size); 657a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 658a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Fill the allocated FixedArray with the hole value if requested. 659a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // result: JSObject 660a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // elements_array: elements array 661a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // elements_array_end: start of next object 662a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ bind(&fill_array); 663a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block if (fill_with_hole) { 664a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Label loop, entry; 665a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ Move(scratch, Factory::the_hole_value()); 666a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ lea(elements_array, Operand(elements_array, 667a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block FixedArray::kHeaderSize - kHeapObjectTag)); 668a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ jmp(&entry); 669a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ bind(&loop); 670a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ movq(Operand(elements_array, 0), scratch); 671a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ addq(elements_array, Immediate(kPointerSize)); 672a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ bind(&entry); 673a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ cmpq(elements_array, elements_array_end); 674a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ j(below, &loop); 675a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 676a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 677a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 678a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 679a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// Create a new array for the built-in Array function. This function allocates 680a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// the JSArray object and the FixedArray elements array and initializes these. 681a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// If the Array cannot be constructed in native code the runtime is called. This 682a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// function assumes the following state: 683a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// rdi: constructor (built-in Array function) 684a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// rax: argc 685a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// rsp[0]: return address 686a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// rsp[8]: last argument 687a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// This function is used for both construct and normal calls of Array. The only 688a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// difference between handling a construct call and a normal call is that for a 689a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// construct call the constructor function in rdi needs to be preserved for 690a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// entering the generic code. In both cases argc in rax needs to be preserved. 691a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// Both registers are preserved by this code so no need to differentiate between 692a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// a construct call and a normal call. 693a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockstatic void ArrayNativeCode(MacroAssembler* masm, 694a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Label *call_generic_code) { 695a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Label argc_one_or_more, argc_two_or_more; 696a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 697a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Check for array construction with zero arguments. 698a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ testq(rax, rax); 699a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ j(not_zero, &argc_one_or_more); 700a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 701a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Handle construction of an empty array. 702a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block AllocateEmptyJSArray(masm, 703a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block rdi, 704a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block rbx, 705a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block rcx, 706a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block rdx, 707a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block r8, 708a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block kPreallocatedArrayElements, 709a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block call_generic_code); 710a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ IncrementCounter(&Counters::array_function_native, 1); 711a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ movq(rax, rbx); 712a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ ret(kPointerSize); 713a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 714a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Check for one argument. Bail out if argument is not smi or if it is 715a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // negative. 716a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ bind(&argc_one_or_more); 717a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ cmpq(rax, Immediate(1)); 718a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ j(not_equal, &argc_two_or_more); 719a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ movq(rdx, Operand(rsp, kPointerSize)); // Get the argument from the stack. 7203ce2e2076e8e3e60cf1810eec160ea2d8557e9e7Steve Block __ JumpIfNotPositiveSmi(rdx, call_generic_code); 721a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 722a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Handle construction of an empty array of a certain size. Bail out if size 723a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // is to large to actually allocate an elements array. 7243ce2e2076e8e3e60cf1810eec160ea2d8557e9e7Steve Block __ SmiCompare(rdx, Smi::FromInt(JSObject::kInitialMaxFastElementArray)); 7253ce2e2076e8e3e60cf1810eec160ea2d8557e9e7Steve Block __ j(greater_equal, call_generic_code); 726a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 727a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // rax: argc 728a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // rdx: array_size (smi) 729a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // rdi: constructor 730a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // esp[0]: return address 731a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // esp[8]: argument 732a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block AllocateJSArray(masm, 733a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block rdi, 734a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block rdx, 735a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block rbx, 736a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block rcx, 737a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block r8, 738a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block r9, 739a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block true, 740a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block call_generic_code); 741a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ IncrementCounter(&Counters::array_function_native, 1); 742a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ movq(rax, rbx); 743a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ ret(2 * kPointerSize); 744a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 745a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Handle construction of an array from a list of arguments. 746a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ bind(&argc_two_or_more); 747a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ movq(rdx, rax); 748a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ Integer32ToSmi(rdx, rdx); // Convet argc to a smi. 749a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // rax: argc 750a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // rdx: array_size (smi) 751a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // rdi: constructor 752a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // esp[0] : return address 753a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // esp[8] : last argument 754a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block AllocateJSArray(masm, 755a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block rdi, 756a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block rdx, 757a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block rbx, 758a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block rcx, 759a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block r8, 760a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block r9, 761a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block false, 762a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block call_generic_code); 763a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ IncrementCounter(&Counters::array_function_native, 1); 764a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 765a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // rax: argc 766a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // rbx: JSArray 767a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // rcx: elements_array 768a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // r8: elements_array_end (untagged) 769a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // esp[0]: return address 770a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // esp[8]: last argument 771a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 772a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Location of the last argument 773a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ lea(r9, Operand(rsp, kPointerSize)); 774a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 775a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Location of the first array element (Parameter fill_with_holes to 776a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // AllocateJSArrayis false, so the FixedArray is returned in rcx). 777a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ lea(rdx, Operand(rcx, FixedArray::kHeaderSize - kHeapObjectTag)); 778a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 779a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // rax: argc 780a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // rbx: JSArray 781a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // rdx: location of the first array element 782a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // r9: location of the last argument 783a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // esp[0]: return address 784a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // esp[8]: last argument 785a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Label loop, entry; 786a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ movq(rcx, rax); 787a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ jmp(&entry); 788a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ bind(&loop); 789a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ movq(kScratchRegister, Operand(r9, rcx, times_pointer_size, 0)); 790a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ movq(Operand(rdx, 0), kScratchRegister); 791a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ addq(rdx, Immediate(kPointerSize)); 792a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ bind(&entry); 793a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ decq(rcx); 794a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ j(greater_equal, &loop); 795a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 796a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Remove caller arguments from the stack and return. 797a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // rax: argc 798a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // rbx: JSArray 799a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // esp[0]: return address 800a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // esp[8]: last argument 801a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ pop(rcx); 802a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ lea(rsp, Operand(rsp, rax, times_pointer_size, 1 * kPointerSize)); 803a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ push(rcx); 804a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ movq(rax, rbx); 805a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ ret(0); 806a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 807a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 808a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 809a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockvoid Builtins::Generate_ArrayCode(MacroAssembler* masm) { 810a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // ----------- S t a t e ------------- 811a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // -- rax : argc 812a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // -- rsp[0] : return address 813a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // -- rsp[8] : last argument 814a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // ----------------------------------- 815a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Label generic_array_code; 816a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 817a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Get the Array function. 818a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block GenerateLoadArrayFunction(masm, rdi); 819a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 820a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block if (FLAG_debug_code) { 821a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Initial map for the builtin Array function shoud be a map. 822a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ movq(rbx, FieldOperand(rdi, JSFunction::kPrototypeOrInitialMapOffset)); 823a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Will both indicate a NULL and a Smi. 824a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block ASSERT(kSmiTag == 0); 8253ce2e2076e8e3e60cf1810eec160ea2d8557e9e7Steve Block Condition not_smi = NegateCondition(masm->CheckSmi(rbx)); 8263ce2e2076e8e3e60cf1810eec160ea2d8557e9e7Steve Block __ Check(not_smi, "Unexpected initial map for Array function"); 827a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ CmpObjectType(rbx, MAP_TYPE, rcx); 8283ce2e2076e8e3e60cf1810eec160ea2d8557e9e7Steve Block __ Check(equal, "Unexpected initial map for Array function"); 829a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 830a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 831a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Run the native code for the Array function called as a normal function. 832a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block ArrayNativeCode(masm, &generic_array_code); 833a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 834a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Jump to the generic array code in case the specialized code cannot handle 835a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // the construction. 836a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ bind(&generic_array_code); 837a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Code* code = Builtins::builtin(Builtins::ArrayCodeGeneric); 838a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Handle<Code> array_code(code); 839a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ Jump(array_code, RelocInfo::CODE_TARGET); 840a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 841a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 842a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 843a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockvoid Builtins::Generate_ArrayConstructCode(MacroAssembler* masm) { 844a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // ----------- S t a t e ------------- 845a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // -- rax : argc 846a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // -- rdi : constructor 847a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // -- rsp[0] : return address 848a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // -- rsp[8] : last argument 849a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // ----------------------------------- 850a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Label generic_constructor; 851a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 852a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block if (FLAG_debug_code) { 853a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // The array construct code is only set for the builtin Array function which 854a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // does always have a map. 855a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block GenerateLoadArrayFunction(masm, rbx); 856a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ cmpq(rdi, rbx); 8573ce2e2076e8e3e60cf1810eec160ea2d8557e9e7Steve Block __ Check(equal, "Unexpected Array function"); 858a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Initial map for the builtin Array function should be a map. 859a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ movq(rbx, FieldOperand(rdi, JSFunction::kPrototypeOrInitialMapOffset)); 860a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Will both indicate a NULL and a Smi. 861a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block ASSERT(kSmiTag == 0); 8623ce2e2076e8e3e60cf1810eec160ea2d8557e9e7Steve Block Condition not_smi = NegateCondition(masm->CheckSmi(rbx)); 8633ce2e2076e8e3e60cf1810eec160ea2d8557e9e7Steve Block __ Check(not_smi, "Unexpected initial map for Array function"); 864a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ CmpObjectType(rbx, MAP_TYPE, rcx); 8653ce2e2076e8e3e60cf1810eec160ea2d8557e9e7Steve Block __ Check(equal, "Unexpected initial map for Array function"); 866a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 867a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 868a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Run the native code for the Array function called as constructor. 869a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block ArrayNativeCode(masm, &generic_constructor); 870a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 871a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Jump to the generic construct code in case the specialized code cannot 872a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // handle the construction. 873a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ bind(&generic_constructor); 874a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Code* code = Builtins::builtin(Builtins::JSConstructStubGeneric); 875a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Handle<Code> generic_construct_stub(code); 876a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ Jump(generic_construct_stub, RelocInfo::CODE_TARGET); 877a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 878a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 879a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 880a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockvoid Builtins::Generate_JSConstructCall(MacroAssembler* masm) { 881a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // ----------- S t a t e ------------- 882a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // -- rax: number of arguments 883a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // -- rdi: constructor function 884a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // ----------------------------------- 885a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 886a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Label non_function_call; 887a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Check that function is not a smi. 888a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ JumpIfSmi(rdi, &non_function_call); 889a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Check that function is a JSFunction. 890a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ CmpObjectType(rdi, JS_FUNCTION_TYPE, rcx); 891a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ j(not_equal, &non_function_call); 892a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 893a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Jump to the function-specific construct stub. 894a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ movq(rbx, FieldOperand(rdi, JSFunction::kSharedFunctionInfoOffset)); 895a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ movq(rbx, FieldOperand(rbx, SharedFunctionInfo::kConstructStubOffset)); 896a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ lea(rbx, FieldOperand(rbx, Code::kHeaderSize)); 897a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ jmp(rbx); 898a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 899a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // edi: called object 900a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // eax: number of arguments 901a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ bind(&non_function_call); 902402d937239b0e2fd11bf2f4fe972ad78aa9fd481Andrei Popescu // CALL_NON_FUNCTION expects the non-function constructor as receiver 903402d937239b0e2fd11bf2f4fe972ad78aa9fd481Andrei Popescu // (instead of the original receiver from the call site). The receiver is 904402d937239b0e2fd11bf2f4fe972ad78aa9fd481Andrei Popescu // stack element argc+1. 905402d937239b0e2fd11bf2f4fe972ad78aa9fd481Andrei Popescu __ movq(Operand(rsp, rax, times_pointer_size, kPointerSize), rdi); 906402d937239b0e2fd11bf2f4fe972ad78aa9fd481Andrei Popescu // Set expected number of arguments to zero (not changing rax). 907a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ movq(rbx, Immediate(0)); 908a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ GetBuiltinEntry(rdx, Builtins::CALL_NON_FUNCTION_AS_CONSTRUCTOR); 909a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ Jump(Handle<Code>(builtin(ArgumentsAdaptorTrampoline)), 910a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block RelocInfo::CODE_TARGET); 911a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 912a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 913a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 914e46be819fca9468a0cd4e74859ce0f778eb8ca60Leon Clarkestatic void Generate_JSConstructStubHelper(MacroAssembler* masm, 915e46be819fca9468a0cd4e74859ce0f778eb8ca60Leon Clarke bool is_api_function) { 916a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Enter a construct frame. 917a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ EnterConstructFrame(); 918a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 919a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Store a smi-tagged arguments count on the stack. 920a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ Integer32ToSmi(rax, rax); 921a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ push(rax); 922a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 923a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Push the function to invoke on the stack. 924a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ push(rdi); 925a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 926a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Try to allocate the object without transitioning into C code. If any of the 927a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // preconditions is not met, the code bails out to the runtime call. 928a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Label rt_call, allocated; 929a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block if (FLAG_inline_new) { 930a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Label undo_allocation; 931a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 932a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block#ifdef ENABLE_DEBUGGER_SUPPORT 933a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block ExternalReference debug_step_in_fp = 934a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block ExternalReference::debug_step_in_fp_address(); 935a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ movq(kScratchRegister, debug_step_in_fp); 936a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ cmpq(Operand(kScratchRegister, 0), Immediate(0)); 937a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ j(not_equal, &rt_call); 938a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block#endif 939a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 940a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Verified that the constructor is a JSFunction. 941a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Load the initial map and verify that it is in fact a map. 942a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // rdi: constructor 943a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ movq(rax, FieldOperand(rdi, JSFunction::kPrototypeOrInitialMapOffset)); 944a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Will both indicate a NULL and a Smi 945a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block ASSERT(kSmiTag == 0); 946a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ JumpIfSmi(rax, &rt_call); 947a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // rdi: constructor 948a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // rax: initial map (if proven valid below) 949a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ CmpObjectType(rax, MAP_TYPE, rbx); 950a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ j(not_equal, &rt_call); 951a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 952a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Check that the constructor is not constructing a JSFunction (see comments 953a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // in Runtime_NewObject in runtime.cc). In which case the initial map's 954a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // instance type would be JS_FUNCTION_TYPE. 955a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // rdi: constructor 956a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // rax: initial map 957a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ CmpInstanceType(rax, JS_FUNCTION_TYPE); 958a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ j(equal, &rt_call); 959a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 960a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Now allocate the JSObject on the heap. 961a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ movzxbq(rdi, FieldOperand(rax, Map::kInstanceSizeOffset)); 962a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ shl(rdi, Immediate(kPointerSizeLog2)); 963a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // rdi: size of new object 964a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ AllocateInNewSpace(rdi, 965a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block rbx, 966a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block rdi, 967a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block no_reg, 968a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block &rt_call, 969a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block NO_ALLOCATION_FLAGS); 970a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Allocated the JSObject, now initialize the fields. 971a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // rax: initial map 972a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // rbx: JSObject (not HeapObject tagged - the actual address). 973a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // rdi: start of next object 974a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ movq(Operand(rbx, JSObject::kMapOffset), rax); 975a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ LoadRoot(rcx, Heap::kEmptyFixedArrayRootIndex); 976a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ movq(Operand(rbx, JSObject::kPropertiesOffset), rcx); 977a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ movq(Operand(rbx, JSObject::kElementsOffset), rcx); 978a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Set extra fields in the newly allocated object. 979a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // rax: initial map 980a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // rbx: JSObject 981a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // rdi: start of next object 982a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block { Label loop, entry; 983a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ LoadRoot(rdx, Heap::kUndefinedValueRootIndex); 984a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ lea(rcx, Operand(rbx, JSObject::kHeaderSize)); 985a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ jmp(&entry); 986a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ bind(&loop); 987a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ movq(Operand(rcx, 0), rdx); 988a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ addq(rcx, Immediate(kPointerSize)); 989a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ bind(&entry); 990a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ cmpq(rcx, rdi); 991a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ j(less, &loop); 992a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 993a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 994a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Add the object tag to make the JSObject real, so that we can continue and 995a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // jump into the continuation code at any time from now on. Any failures 996a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // need to undo the allocation, so that the heap is in a consistent state 997a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // and verifiable. 998a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // rax: initial map 999a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // rbx: JSObject 1000a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // rdi: start of next object 1001a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ or_(rbx, Immediate(kHeapObjectTag)); 1002a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 1003a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Check if a non-empty properties array is needed. 1004a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Allocate and initialize a FixedArray if it is. 1005a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // rax: initial map 1006a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // rbx: JSObject 1007a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // rdi: start of next object 1008a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Calculate total properties described map. 1009a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ movzxbq(rdx, FieldOperand(rax, Map::kUnusedPropertyFieldsOffset)); 1010a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ movzxbq(rcx, FieldOperand(rax, Map::kPreAllocatedPropertyFieldsOffset)); 1011a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ addq(rdx, rcx); 1012a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Calculate unused properties past the end of the in-object properties. 1013a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ movzxbq(rcx, FieldOperand(rax, Map::kInObjectPropertiesOffset)); 1014a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ subq(rdx, rcx); 1015a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Done if no extra properties are to be allocated. 1016a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ j(zero, &allocated); 1017a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ Assert(positive, "Property allocation count failed."); 1018a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 1019a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Scale the number of elements by pointer size and add the header for 1020a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // FixedArrays to the start of the next object calculation from above. 1021a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // rbx: JSObject 1022a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // rdi: start of next object (will be start of FixedArray) 1023a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // rdx: number of elements in properties array 1024a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ AllocateInNewSpace(FixedArray::kHeaderSize, 1025a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block times_pointer_size, 1026a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block rdx, 1027a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block rdi, 1028a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block rax, 1029a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block no_reg, 1030a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block &undo_allocation, 1031a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block RESULT_CONTAINS_TOP); 1032a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 1033a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Initialize the FixedArray. 1034a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // rbx: JSObject 1035a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // rdi: FixedArray 1036a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // rdx: number of elements 1037a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // rax: start of next object 1038a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ LoadRoot(rcx, Heap::kFixedArrayMapRootIndex); 1039a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ movq(Operand(rdi, JSObject::kMapOffset), rcx); // setup the map 1040a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ movl(Operand(rdi, FixedArray::kLengthOffset), rdx); // and length 1041a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 1042a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Initialize the fields to undefined. 1043a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // rbx: JSObject 1044a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // rdi: FixedArray 1045a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // rax: start of next object 1046a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // rdx: number of elements 1047a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block { Label loop, entry; 1048a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ LoadRoot(rdx, Heap::kUndefinedValueRootIndex); 1049a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ lea(rcx, Operand(rdi, FixedArray::kHeaderSize)); 1050a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ jmp(&entry); 1051a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ bind(&loop); 1052a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ movq(Operand(rcx, 0), rdx); 1053a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ addq(rcx, Immediate(kPointerSize)); 1054a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ bind(&entry); 1055a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ cmpq(rcx, rax); 1056a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ j(below, &loop); 1057a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 1058a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 1059a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Store the initialized FixedArray into the properties field of 1060a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // the JSObject 1061a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // rbx: JSObject 1062a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // rdi: FixedArray 1063a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ or_(rdi, Immediate(kHeapObjectTag)); // add the heap tag 1064a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ movq(FieldOperand(rbx, JSObject::kPropertiesOffset), rdi); 1065a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 1066a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 1067a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Continue with JSObject being successfully allocated 1068a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // rbx: JSObject 1069a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ jmp(&allocated); 1070a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 1071a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Undo the setting of the new top so that the heap is verifiable. For 1072a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // example, the map's unused properties potentially do not match the 1073a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // allocated objects unused properties. 1074a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // rbx: JSObject (previous new top) 1075a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ bind(&undo_allocation); 1076a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ UndoAllocationInNewSpace(rbx); 1077a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 1078a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 1079a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Allocate the new receiver object using the runtime call. 1080a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // rdi: function (constructor) 1081a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ bind(&rt_call); 1082a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Must restore rdi (constructor) before calling runtime. 1083a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ movq(rdi, Operand(rsp, 0)); 1084a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ push(rdi); 1085a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ CallRuntime(Runtime::kNewObject, 1); 1086a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ movq(rbx, rax); // store result in rbx 1087a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 1088a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // New object allocated. 1089a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // rbx: newly allocated object 1090a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ bind(&allocated); 1091a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Retrieve the function from the stack. 1092a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ pop(rdi); 1093a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 1094a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Retrieve smi-tagged arguments count from the stack. 1095a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ movq(rax, Operand(rsp, 0)); 1096a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ SmiToInteger32(rax, rax); 1097a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 1098a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Push the allocated receiver to the stack. We need two copies 1099a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // because we may have to return the original one and the calling 1100a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // conventions dictate that the called function pops the receiver. 1101a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ push(rbx); 1102a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ push(rbx); 1103a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 1104a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Setup pointer to last argument. 1105a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ lea(rbx, Operand(rbp, StandardFrameConstants::kCallerSPOffset)); 1106a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 1107a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Copy arguments and receiver to the expression stack. 1108a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Label loop, entry; 1109a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ movq(rcx, rax); 1110a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ jmp(&entry); 1111a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ bind(&loop); 1112a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ push(Operand(rbx, rcx, times_pointer_size, 0)); 1113a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ bind(&entry); 1114a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ decq(rcx); 1115a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ j(greater_equal, &loop); 1116a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 1117a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Call the function. 1118e46be819fca9468a0cd4e74859ce0f778eb8ca60Leon Clarke if (is_api_function) { 1119e46be819fca9468a0cd4e74859ce0f778eb8ca60Leon Clarke __ movq(rsi, FieldOperand(rdi, JSFunction::kContextOffset)); 1120e46be819fca9468a0cd4e74859ce0f778eb8ca60Leon Clarke Handle<Code> code = Handle<Code>( 1121e46be819fca9468a0cd4e74859ce0f778eb8ca60Leon Clarke Builtins::builtin(Builtins::HandleApiCallConstruct)); 1122e46be819fca9468a0cd4e74859ce0f778eb8ca60Leon Clarke ParameterCount expected(0); 1123e46be819fca9468a0cd4e74859ce0f778eb8ca60Leon Clarke __ InvokeCode(code, expected, expected, 1124e46be819fca9468a0cd4e74859ce0f778eb8ca60Leon Clarke RelocInfo::CODE_TARGET, CALL_FUNCTION); 1125e46be819fca9468a0cd4e74859ce0f778eb8ca60Leon Clarke } else { 1126e46be819fca9468a0cd4e74859ce0f778eb8ca60Leon Clarke ParameterCount actual(rax); 1127e46be819fca9468a0cd4e74859ce0f778eb8ca60Leon Clarke __ InvokeFunction(rdi, actual, CALL_FUNCTION); 1128e46be819fca9468a0cd4e74859ce0f778eb8ca60Leon Clarke } 1129a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 1130a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Restore context from the frame. 1131a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ movq(rsi, Operand(rbp, StandardFrameConstants::kContextOffset)); 1132a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 1133a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // If the result is an object (in the ECMA sense), we should get rid 1134a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // of the receiver and use the result; see ECMA-262 section 13.2.2-7 1135a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // on page 74. 1136a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Label use_receiver, exit; 1137a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // If the result is a smi, it is *not* an object in the ECMA sense. 1138a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ JumpIfSmi(rax, &use_receiver); 1139a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 1140a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // If the type of the result (stored in its map) is less than 1141a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // FIRST_JS_OBJECT_TYPE, it is not an object in the ECMA sense. 1142a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ CmpObjectType(rax, FIRST_JS_OBJECT_TYPE, rcx); 1143a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ j(above_equal, &exit); 1144a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 1145a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Throw away the result of the constructor invocation and use the 1146a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // on-stack receiver as the result. 1147a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ bind(&use_receiver); 1148a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ movq(rax, Operand(rsp, 0)); 1149a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 1150a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Restore the arguments count and leave the construct frame. 1151a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ bind(&exit); 1152a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ movq(rbx, Operand(rsp, kPointerSize)); // get arguments count 1153a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ LeaveConstructFrame(); 1154a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 1155a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Remove caller arguments from the stack and return. 1156a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ pop(rcx); 11573ce2e2076e8e3e60cf1810eec160ea2d8557e9e7Steve Block SmiIndex index = masm->SmiToIndex(rbx, rbx, kPointerSizeLog2); 11583ce2e2076e8e3e60cf1810eec160ea2d8557e9e7Steve Block __ lea(rsp, Operand(rsp, index.reg, index.scale, 1 * kPointerSize)); 1159a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ push(rcx); 1160a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ IncrementCounter(&Counters::constructed_objects, 1); 1161a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ ret(0); 1162a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 1163a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 1164a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 1165e46be819fca9468a0cd4e74859ce0f778eb8ca60Leon Clarkevoid Builtins::Generate_JSConstructStubGeneric(MacroAssembler* masm) { 1166e46be819fca9468a0cd4e74859ce0f778eb8ca60Leon Clarke Generate_JSConstructStubHelper(masm, false); 1167e46be819fca9468a0cd4e74859ce0f778eb8ca60Leon Clarke} 1168e46be819fca9468a0cd4e74859ce0f778eb8ca60Leon Clarke 1169e46be819fca9468a0cd4e74859ce0f778eb8ca60Leon Clarke 1170e46be819fca9468a0cd4e74859ce0f778eb8ca60Leon Clarkevoid Builtins::Generate_JSConstructStubApi(MacroAssembler* masm) { 1171e46be819fca9468a0cd4e74859ce0f778eb8ca60Leon Clarke Generate_JSConstructStubHelper(masm, true); 1172e46be819fca9468a0cd4e74859ce0f778eb8ca60Leon Clarke} 1173e46be819fca9468a0cd4e74859ce0f778eb8ca60Leon Clarke 1174e46be819fca9468a0cd4e74859ce0f778eb8ca60Leon Clarke 1175a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockstatic void Generate_JSEntryTrampolineHelper(MacroAssembler* masm, 1176a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block bool is_construct) { 1177a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Expects five C++ function parameters. 1178a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // - Address entry (ignored) 1179a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // - JSFunction* function ( 1180a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // - Object* receiver 1181a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // - int argc 1182a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // - Object*** argv 1183a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // (see Handle::Invoke in execution.cc). 1184a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 1185a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Platform specific argument handling. After this, the stack contains 1186a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // an internal frame and the pushed function and receiver, and 1187a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // register rax and rbx holds the argument count and argument array, 1188a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // while rdi holds the function pointer and rsi the context. 1189a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block#ifdef _WIN64 1190a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // MSVC parameters in: 1191a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // rcx : entry (ignored) 1192a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // rdx : function 1193a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // r8 : receiver 1194a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // r9 : argc 1195a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // [rsp+0x20] : argv 1196a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 1197a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Clear the context before we push it when entering the JS frame. 1198a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ xor_(rsi, rsi); 1199a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ EnterInternalFrame(); 1200a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 1201a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Load the function context into rsi. 1202a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ movq(rsi, FieldOperand(rdx, JSFunction::kContextOffset)); 1203a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 1204a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Push the function and the receiver onto the stack. 1205a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ push(rdx); 1206a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ push(r8); 1207a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 1208a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Load the number of arguments and setup pointer to the arguments. 1209a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ movq(rax, r9); 1210a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Load the previous frame pointer to access C argument on stack 1211a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ movq(kScratchRegister, Operand(rbp, 0)); 1212a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ movq(rbx, Operand(kScratchRegister, EntryFrameConstants::kArgvOffset)); 1213a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Load the function pointer into rdi. 1214a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ movq(rdi, rdx); 1215a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block#else // !defined(_WIN64) 1216a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // GCC parameters in: 1217a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // rdi : entry (ignored) 1218a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // rsi : function 1219a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // rdx : receiver 1220a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // rcx : argc 1221a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // r8 : argv 1222a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 1223a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ movq(rdi, rsi); 1224a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // rdi : function 1225a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 1226a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Clear the context before we push it when entering the JS frame. 1227a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ xor_(rsi, rsi); 1228a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Enter an internal frame. 1229a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ EnterInternalFrame(); 1230a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 1231a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Push the function and receiver and setup the context. 1232a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ push(rdi); 1233a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ push(rdx); 1234a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ movq(rsi, FieldOperand(rdi, JSFunction::kContextOffset)); 1235a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 1236a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Load the number of arguments and setup pointer to the arguments. 1237a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ movq(rax, rcx); 1238a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ movq(rbx, r8); 1239a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block#endif // _WIN64 1240a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 1241a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Set up the roots register. 1242a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block ExternalReference roots_address = ExternalReference::roots_address(); 1243a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ movq(r13, roots_address); 1244a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 1245a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Current stack contents: 1246a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // [rsp + 2 * kPointerSize ... ]: Internal frame 1247a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // [rsp + kPointerSize] : function 1248a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // [rsp] : receiver 1249a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Current register contents: 1250a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // rax : argc 1251a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // rbx : argv 1252a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // rsi : context 1253a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // rdi : function 1254a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 1255a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Copy arguments to the stack in a loop. 1256a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Register rbx points to array of pointers to handle locations. 1257a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Push the values of these handles. 1258a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Label loop, entry; 1259a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ xor_(rcx, rcx); // Set loop variable to 0. 1260a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ jmp(&entry); 1261a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ bind(&loop); 1262a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ movq(kScratchRegister, Operand(rbx, rcx, times_pointer_size, 0)); 1263a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ push(Operand(kScratchRegister, 0)); // dereference handle 1264a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ addq(rcx, Immediate(1)); 1265a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ bind(&entry); 1266a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ cmpq(rcx, rax); 1267a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ j(not_equal, &loop); 1268a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 1269a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Invoke the code. 1270a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block if (is_construct) { 1271a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Expects rdi to hold function pointer. 1272a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ Call(Handle<Code>(Builtins::builtin(Builtins::JSConstructCall)), 1273a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block RelocInfo::CODE_TARGET); 1274a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } else { 1275a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block ParameterCount actual(rax); 1276a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Function must be in rdi. 1277a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ InvokeFunction(rdi, actual, CALL_FUNCTION); 1278a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 1279a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 1280a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Exit the JS frame. Notice that this also removes the empty 1281a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // context and the function left on the stack by the code 1282a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // invocation. 1283a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ LeaveInternalFrame(); 1284a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // TODO(X64): Is argument correct? Is there a receiver to remove? 1285a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block __ ret(1 * kPointerSize); // remove receiver 1286a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 1287a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 1288a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 1289a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockvoid Builtins::Generate_JSEntryTrampoline(MacroAssembler* masm) { 1290a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Generate_JSEntryTrampolineHelper(masm, false); 1291a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 1292a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 1293a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 1294a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockvoid Builtins::Generate_JSConstructEntryTrampoline(MacroAssembler* masm) { 1295a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Generate_JSEntryTrampolineHelper(masm, true); 1296a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 1297a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 1298a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} } // namespace v8::internal 1299