Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1 | // Copyright 2012 the V8 project authors. All rights reserved. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2 | // Use of this source code is governed by a BSD-style license that can be |
| 3 | // found in the LICENSE file. |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5 | #if V8_TARGET_ARCH_X64 |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 6 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7 | #include "src/code-factory.h" |
| 8 | #include "src/codegen.h" |
| 9 | #include "src/deoptimizer.h" |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 10 | #include "src/full-codegen/full-codegen.h" |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 11 | |
| 12 | namespace v8 { |
| 13 | namespace internal { |
| 14 | |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 15 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 16 | #define __ ACCESS_MASM(masm) |
| 17 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 18 | |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 19 | void Builtins::Generate_Adaptor(MacroAssembler* masm, |
| 20 | CFunctionId id, |
| 21 | BuiltinExtraArguments extra_args) { |
| 22 | // ----------- S t a t e ------------- |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 23 | // -- rax : number of arguments excluding receiver |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 24 | // -- rdi : target |
| 25 | // -- rdx : new.target |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 26 | // -- rsp[0] : return address |
| 27 | // -- rsp[8] : last argument |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 28 | // -- ... |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 29 | // -- rsp[8 * argc] : first argument |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 30 | // -- rsp[8 * (argc + 1)] : receiver |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 31 | // ----------------------------------- |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 32 | __ AssertFunction(rdi); |
| 33 | |
| 34 | // Make sure we operate in the context of the called function (for example |
| 35 | // ConstructStubs implemented in C++ will be run in the context of the caller |
| 36 | // instead of the callee, due to the way that [[Construct]] is defined for |
| 37 | // ordinary functions). |
| 38 | __ movp(rsi, FieldOperand(rdi, JSFunction::kContextOffset)); |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 39 | |
| 40 | // Insert extra arguments. |
| 41 | int num_extra_args = 0; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 42 | if (extra_args != BuiltinExtraArguments::kNone) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 43 | __ PopReturnAddressTo(kScratchRegister); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 44 | if (extra_args & BuiltinExtraArguments::kTarget) { |
| 45 | ++num_extra_args; |
| 46 | __ Push(rdi); |
| 47 | } |
| 48 | if (extra_args & BuiltinExtraArguments::kNewTarget) { |
| 49 | ++num_extra_args; |
| 50 | __ Push(rdx); |
| 51 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 52 | __ PushReturnAddressFrom(kScratchRegister); |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 53 | } |
| 54 | |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 55 | // JumpToExternalReference expects rax to contain the number of arguments |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 56 | // including the receiver and the extra arguments. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 57 | __ addp(rax, Immediate(num_extra_args + 1)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 58 | |
| 59 | __ JumpToExternalReference(ExternalReference(id, masm->isolate())); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 60 | } |
| 61 | |
| 62 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 63 | static void GenerateTailCallToSharedCode(MacroAssembler* masm) { |
| 64 | __ movp(kScratchRegister, |
| 65 | FieldOperand(rdi, JSFunction::kSharedFunctionInfoOffset)); |
| 66 | __ movp(kScratchRegister, |
| 67 | FieldOperand(kScratchRegister, SharedFunctionInfo::kCodeOffset)); |
| 68 | __ leap(kScratchRegister, FieldOperand(kScratchRegister, Code::kHeaderSize)); |
| 69 | __ jmp(kScratchRegister); |
| 70 | } |
| 71 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame^] | 72 | static void GenerateTailCallToReturnedCode(MacroAssembler* masm, |
| 73 | Runtime::FunctionId function_id) { |
| 74 | // ----------- S t a t e ------------- |
| 75 | // -- rax : argument count (preserved for callee) |
| 76 | // -- rdx : new target (preserved for callee) |
| 77 | // -- rdi : target function (preserved for callee) |
| 78 | // ----------------------------------- |
| 79 | { |
| 80 | FrameScope scope(masm, StackFrame::INTERNAL); |
| 81 | // Push the number of arguments to the callee. |
| 82 | __ Integer32ToSmi(rax, rax); |
| 83 | __ Push(rax); |
| 84 | // Push a copy of the target function and the new target. |
| 85 | __ Push(rdi); |
| 86 | __ Push(rdx); |
| 87 | // Function is also the parameter to the runtime call. |
| 88 | __ Push(rdi); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 89 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame^] | 90 | __ CallRuntime(function_id, 1); |
| 91 | __ movp(rbx, rax); |
| 92 | |
| 93 | // Restore target function and new target. |
| 94 | __ Pop(rdx); |
| 95 | __ Pop(rdi); |
| 96 | __ Pop(rax); |
| 97 | __ SmiToInteger32(rax, rax); |
| 98 | } |
| 99 | __ leap(rbx, FieldOperand(rbx, Code::kHeaderSize)); |
| 100 | __ jmp(rbx); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 101 | } |
| 102 | |
| 103 | |
| 104 | void Builtins::Generate_InOptimizationQueue(MacroAssembler* masm) { |
| 105 | // Checking whether the queued function is ready for install is optional, |
| 106 | // since we come across interrupts and stack checks elsewhere. However, |
| 107 | // not checking may delay installing ready functions, and always checking |
| 108 | // would be quite expensive. A good compromise is to first check against |
| 109 | // stack limit as a cue for an interrupt signal. |
| 110 | Label ok; |
| 111 | __ CompareRoot(rsp, Heap::kStackLimitRootIndex); |
| 112 | __ j(above_equal, &ok); |
| 113 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame^] | 114 | GenerateTailCallToReturnedCode(masm, Runtime::kTryInstallOptimizedCode); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 115 | |
| 116 | __ bind(&ok); |
| 117 | GenerateTailCallToSharedCode(masm); |
| 118 | } |
| 119 | |
| 120 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 121 | static void Generate_JSConstructStubHelper(MacroAssembler* masm, |
| 122 | bool is_api_function, |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame^] | 123 | bool create_implicit_receiver, |
| 124 | bool check_derived_construct) { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 125 | // ----------- S t a t e ------------- |
| 126 | // -- rax: number of arguments |
| 127 | // -- rdi: constructor function |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 128 | // -- rbx: allocation site or undefined |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 129 | // -- rdx: new target |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 130 | // ----------------------------------- |
| 131 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 132 | // Enter a construct frame. |
| 133 | { |
| 134 | FrameScope scope(masm, StackFrame::CONSTRUCT); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 135 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 136 | // Preserve the incoming parameters on the stack. |
| 137 | __ AssertUndefinedOrAllocationSite(rbx); |
| 138 | __ Push(rbx); |
| 139 | __ Integer32ToSmi(rcx, rax); |
| 140 | __ Push(rcx); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 141 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 142 | if (create_implicit_receiver) { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame^] | 143 | // Allocate the new receiver object. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 144 | __ Push(rdi); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 145 | __ Push(rdx); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame^] | 146 | FastNewObjectStub stub(masm->isolate()); |
| 147 | __ CallStub(&stub); |
| 148 | __ movp(rbx, rax); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 149 | __ Pop(rdx); |
| 150 | __ Pop(rdi); |
| 151 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame^] | 152 | // ----------- S t a t e ------------- |
| 153 | // -- rdi: constructor function |
| 154 | // -- rbx: newly allocated object |
| 155 | // -- rdx: new target |
| 156 | // ----------------------------------- |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 157 | |
| 158 | // Retrieve smi-tagged arguments count from the stack. |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame^] | 159 | __ SmiToInteger32(rax, Operand(rsp, 0 * kPointerSize)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 160 | } |
| 161 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 162 | if (create_implicit_receiver) { |
| 163 | // Push the allocated receiver to the stack. We need two copies |
| 164 | // because we may have to return the original one and the calling |
| 165 | // conventions dictate that the called function pops the receiver. |
| 166 | __ Push(rbx); |
| 167 | __ Push(rbx); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 168 | } else { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 169 | __ PushRoot(Heap::kTheHoleValueRootIndex); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 170 | } |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 171 | |
| 172 | // Set up pointer to last argument. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 173 | __ leap(rbx, Operand(rbp, StandardFrameConstants::kCallerSPOffset)); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 174 | |
| 175 | // Copy arguments and receiver to the expression stack. |
| 176 | Label loop, entry; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 177 | __ movp(rcx, rax); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 178 | __ jmp(&entry); |
| 179 | __ bind(&loop); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 180 | __ Push(Operand(rbx, rcx, times_pointer_size, 0)); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 181 | __ bind(&entry); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 182 | __ decp(rcx); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 183 | __ j(greater_equal, &loop); |
| 184 | |
| 185 | // Call the function. |
| 186 | if (is_api_function) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 187 | __ movp(rsi, FieldOperand(rdi, JSFunction::kContextOffset)); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 188 | Handle<Code> code = |
| 189 | masm->isolate()->builtins()->HandleApiCallConstruct(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 190 | __ Call(code, RelocInfo::CODE_TARGET); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 191 | } else { |
| 192 | ParameterCount actual(rax); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 193 | __ InvokeFunction(rdi, rdx, actual, CALL_FUNCTION, |
| 194 | CheckDebugStepCallWrapper()); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 195 | } |
| 196 | |
| 197 | // Store offset of return address for deoptimizer. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 198 | if (create_implicit_receiver && !is_api_function) { |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 199 | masm->isolate()->heap()->SetConstructStubDeoptPCOffset(masm->pc_offset()); |
| 200 | } |
| 201 | |
| 202 | // Restore context from the frame. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 203 | __ movp(rsi, Operand(rbp, StandardFrameConstants::kContextOffset)); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 204 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 205 | if (create_implicit_receiver) { |
| 206 | // If the result is an object (in the ECMA sense), we should get rid |
| 207 | // of the receiver and use the result; see ECMA-262 section 13.2.2-7 |
| 208 | // on page 74. |
| 209 | Label use_receiver, exit; |
| 210 | // If the result is a smi, it is *not* an object in the ECMA sense. |
| 211 | __ JumpIfSmi(rax, &use_receiver); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 212 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 213 | // If the type of the result (stored in its map) is less than |
| 214 | // FIRST_JS_RECEIVER_TYPE, it is not an object in the ECMA sense. |
| 215 | STATIC_ASSERT(LAST_JS_RECEIVER_TYPE == LAST_TYPE); |
| 216 | __ CmpObjectType(rax, FIRST_JS_RECEIVER_TYPE, rcx); |
| 217 | __ j(above_equal, &exit); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 218 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 219 | // Throw away the result of the constructor invocation and use the |
| 220 | // on-stack receiver as the result. |
| 221 | __ bind(&use_receiver); |
| 222 | __ movp(rax, Operand(rsp, 0)); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 223 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 224 | // Restore the arguments count and leave the construct frame. The |
| 225 | // arguments count is stored below the receiver. |
| 226 | __ bind(&exit); |
| 227 | __ movp(rbx, Operand(rsp, 1 * kPointerSize)); |
| 228 | } else { |
| 229 | __ movp(rbx, Operand(rsp, 0)); |
| 230 | } |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 231 | |
| 232 | // Leave construct frame. |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 233 | } |
| 234 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame^] | 235 | // ES6 9.2.2. Step 13+ |
| 236 | // Check that the result is not a Smi, indicating that the constructor result |
| 237 | // from a derived class is neither undefined nor an Object. |
| 238 | if (check_derived_construct) { |
| 239 | Label dont_throw; |
| 240 | __ JumpIfNotSmi(rax, &dont_throw); |
| 241 | { |
| 242 | FrameScope scope(masm, StackFrame::INTERNAL); |
| 243 | __ CallRuntime(Runtime::kThrowDerivedConstructorReturnedNonObject); |
| 244 | } |
| 245 | __ bind(&dont_throw); |
| 246 | } |
| 247 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 248 | // Remove caller arguments from the stack and return. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 249 | __ PopReturnAddressTo(rcx); |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 250 | SmiIndex index = masm->SmiToIndex(rbx, rbx, kPointerSizeLog2); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 251 | __ leap(rsp, Operand(rsp, index.reg, index.scale, 1 * kPointerSize)); |
| 252 | __ PushReturnAddressFrom(rcx); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 253 | if (create_implicit_receiver) { |
| 254 | Counters* counters = masm->isolate()->counters(); |
| 255 | __ IncrementCounter(counters->constructed_objects(), 1); |
| 256 | } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 257 | __ ret(0); |
| 258 | } |
| 259 | |
| 260 | |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 261 | void Builtins::Generate_JSConstructStubGeneric(MacroAssembler* masm) { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame^] | 262 | Generate_JSConstructStubHelper(masm, false, true, false); |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 263 | } |
| 264 | |
| 265 | |
| 266 | void Builtins::Generate_JSConstructStubApi(MacroAssembler* masm) { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame^] | 267 | Generate_JSConstructStubHelper(masm, true, false, false); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 268 | } |
| 269 | |
| 270 | |
| 271 | void Builtins::Generate_JSBuiltinsConstructStub(MacroAssembler* masm) { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame^] | 272 | Generate_JSConstructStubHelper(masm, false, false, false); |
| 273 | } |
| 274 | |
| 275 | |
| 276 | void Builtins::Generate_JSBuiltinsConstructStubForDerived( |
| 277 | MacroAssembler* masm) { |
| 278 | Generate_JSConstructStubHelper(masm, false, false, true); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 279 | } |
| 280 | |
| 281 | |
| 282 | void Builtins::Generate_ConstructedNonConstructable(MacroAssembler* masm) { |
| 283 | FrameScope scope(masm, StackFrame::INTERNAL); |
| 284 | __ Push(rdi); |
| 285 | __ CallRuntime(Runtime::kThrowConstructedNonConstructable); |
| 286 | } |
| 287 | |
| 288 | |
| 289 | enum IsTagged { kRaxIsSmiTagged, kRaxIsUntaggedInt }; |
| 290 | |
| 291 | |
| 292 | // Clobbers rcx, r11, kScratchRegister; preserves all other registers. |
| 293 | static void Generate_CheckStackOverflow(MacroAssembler* masm, |
| 294 | IsTagged rax_is_tagged) { |
| 295 | // rax : the number of items to be pushed to the stack |
| 296 | // |
| 297 | // Check the stack for overflow. We are not trying to catch |
| 298 | // interruptions (e.g. debug break and preemption) here, so the "real stack |
| 299 | // limit" is checked. |
| 300 | Label okay; |
| 301 | __ LoadRoot(kScratchRegister, Heap::kRealStackLimitRootIndex); |
| 302 | __ movp(rcx, rsp); |
| 303 | // Make rcx the space we have left. The stack might already be overflowed |
| 304 | // here which will cause rcx to become negative. |
| 305 | __ subp(rcx, kScratchRegister); |
| 306 | // Make r11 the space we need for the array when it is unrolled onto the |
| 307 | // stack. |
| 308 | if (rax_is_tagged == kRaxIsSmiTagged) { |
| 309 | __ PositiveSmiTimesPowerOfTwoToInteger64(r11, rax, kPointerSizeLog2); |
| 310 | } else { |
| 311 | DCHECK(rax_is_tagged == kRaxIsUntaggedInt); |
| 312 | __ movp(r11, rax); |
| 313 | __ shlq(r11, Immediate(kPointerSizeLog2)); |
| 314 | } |
| 315 | // Check if the arguments will overflow the stack. |
| 316 | __ cmpp(rcx, r11); |
| 317 | __ j(greater, &okay); // Signed comparison. |
| 318 | |
| 319 | // Out of stack space. |
| 320 | __ CallRuntime(Runtime::kThrowStackOverflow); |
| 321 | |
| 322 | __ bind(&okay); |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 323 | } |
| 324 | |
| 325 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 326 | static void Generate_JSEntryTrampolineHelper(MacroAssembler* masm, |
| 327 | bool is_construct) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 328 | ProfileEntryHookStub::MaybeCallEntryHook(masm); |
| 329 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 330 | // Expects five C++ function parameters. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 331 | // - Object* new_target |
| 332 | // - JSFunction* function |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 333 | // - Object* receiver |
| 334 | // - int argc |
| 335 | // - Object*** argv |
| 336 | // (see Handle::Invoke in execution.cc). |
| 337 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 338 | // Open a C++ scope for the FrameScope. |
| 339 | { |
| 340 | // Platform specific argument handling. After this, the stack contains |
| 341 | // an internal frame and the pushed function and receiver, and |
| 342 | // register rax and rbx holds the argument count and argument array, |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 343 | // while rdi holds the function pointer, rsi the context, and rdx the |
| 344 | // new.target. |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 345 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 346 | #ifdef _WIN64 |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 347 | // MSVC parameters in: |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 348 | // rcx : new_target |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 349 | // rdx : function |
| 350 | // r8 : receiver |
| 351 | // r9 : argc |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 352 | // [rsp+0x20] : argv |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 353 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 354 | // Clear the context before we push it when entering the internal frame. |
| 355 | __ Set(rsi, 0); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 356 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 357 | // Enter an internal frame. |
| 358 | FrameScope scope(masm, StackFrame::INTERNAL); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 359 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 360 | // Setup the context (we need to use the caller context from the isolate). |
| 361 | ExternalReference context_address(Isolate::kContextAddress, |
| 362 | masm->isolate()); |
| 363 | __ movp(rsi, masm->ExternalOperand(context_address)); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 364 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 365 | // Push the function and the receiver onto the stack. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 366 | __ Push(rdx); |
| 367 | __ Push(r8); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 368 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 369 | // Load the number of arguments and setup pointer to the arguments. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 370 | __ movp(rax, r9); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 371 | // Load the previous frame pointer to access C argument on stack |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 372 | __ movp(kScratchRegister, Operand(rbp, 0)); |
| 373 | __ movp(rbx, Operand(kScratchRegister, EntryFrameConstants::kArgvOffset)); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 374 | // Load the function pointer into rdi. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 375 | __ movp(rdi, rdx); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 376 | // Load the new.target into rdx. |
| 377 | __ movp(rdx, rcx); |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 378 | #else // _WIN64 |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 379 | // GCC parameters in: |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 380 | // rdi : new_target |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 381 | // rsi : function |
| 382 | // rdx : receiver |
| 383 | // rcx : argc |
| 384 | // r8 : argv |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 385 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 386 | __ movp(r11, rdi); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 387 | __ movp(rdi, rsi); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 388 | // rdi : function |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 389 | // r11 : new_target |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 390 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 391 | // Clear the context before we push it when entering the internal frame. |
| 392 | __ Set(rsi, 0); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 393 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 394 | // Enter an internal frame. |
| 395 | FrameScope scope(masm, StackFrame::INTERNAL); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 396 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 397 | // Setup the context (we need to use the caller context from the isolate). |
| 398 | ExternalReference context_address(Isolate::kContextAddress, |
| 399 | masm->isolate()); |
| 400 | __ movp(rsi, masm->ExternalOperand(context_address)); |
| 401 | |
| 402 | // Push the function and receiver onto the stack. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 403 | __ Push(rdi); |
| 404 | __ Push(rdx); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 405 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 406 | // Load the number of arguments and setup pointer to the arguments. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 407 | __ movp(rax, rcx); |
| 408 | __ movp(rbx, r8); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 409 | |
| 410 | // Load the new.target into rdx. |
| 411 | __ movp(rdx, r11); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 412 | #endif // _WIN64 |
| 413 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 414 | // Current stack contents: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 415 | // [rsp + 2 * kPointerSize ... ] : Internal frame |
| 416 | // [rsp + kPointerSize] : function |
| 417 | // [rsp] : receiver |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 418 | // Current register contents: |
| 419 | // rax : argc |
| 420 | // rbx : argv |
| 421 | // rsi : context |
| 422 | // rdi : function |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 423 | // rdx : new.target |
| 424 | |
| 425 | // Check if we have enough stack space to push all arguments. |
| 426 | // Expects argument count in rax. Clobbers rcx, r11. |
| 427 | Generate_CheckStackOverflow(masm, kRaxIsUntaggedInt); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 428 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 429 | // Copy arguments to the stack in a loop. |
| 430 | // Register rbx points to array of pointers to handle locations. |
| 431 | // Push the values of these handles. |
| 432 | Label loop, entry; |
| 433 | __ Set(rcx, 0); // Set loop variable to 0. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 434 | __ jmp(&entry, Label::kNear); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 435 | __ bind(&loop); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 436 | __ movp(kScratchRegister, Operand(rbx, rcx, times_pointer_size, 0)); |
| 437 | __ Push(Operand(kScratchRegister, 0)); // dereference handle |
| 438 | __ addp(rcx, Immediate(1)); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 439 | __ bind(&entry); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 440 | __ cmpp(rcx, rax); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 441 | __ j(not_equal, &loop); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 442 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 443 | // Invoke the builtin code. |
| 444 | Handle<Code> builtin = is_construct |
| 445 | ? masm->isolate()->builtins()->Construct() |
| 446 | : masm->isolate()->builtins()->Call(); |
| 447 | __ Call(builtin, RelocInfo::CODE_TARGET); |
| 448 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 449 | // Exit the internal frame. Notice that this also removes the empty |
| 450 | // context and the function left on the stack by the code |
| 451 | // invocation. |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 452 | } |
| 453 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 454 | // TODO(X64): Is argument correct? Is there a receiver to remove? |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 455 | __ ret(1 * kPointerSize); // Remove receiver. |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 456 | } |
| 457 | |
| 458 | |
| 459 | void Builtins::Generate_JSEntryTrampoline(MacroAssembler* masm) { |
| 460 | Generate_JSEntryTrampolineHelper(masm, false); |
| 461 | } |
| 462 | |
| 463 | |
| 464 | void Builtins::Generate_JSConstructEntryTrampoline(MacroAssembler* masm) { |
| 465 | Generate_JSEntryTrampolineHelper(masm, true); |
| 466 | } |
| 467 | |
Iain Merrick | 7568138 | 2010-08-19 15:07:18 +0100 | [diff] [blame] | 468 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 469 | // Generate code for entering a JS function with the interpreter. |
| 470 | // On entry to the function the receiver and arguments have been pushed on the |
| 471 | // stack left to right. The actual argument count matches the formal parameter |
| 472 | // count expected by the function. |
| 473 | // |
| 474 | // The live registers are: |
| 475 | // o rdi: the JS function object being called |
| 476 | // o rdx: the new target |
| 477 | // o rsi: our context |
| 478 | // o rbp: the caller's frame pointer |
| 479 | // o rsp: stack pointer (pointing to return address) |
| 480 | // |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame^] | 481 | // The function builds an interpreter frame. See InterpreterFrameConstants in |
| 482 | // frames.h for its layout. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 483 | void Builtins::Generate_InterpreterEntryTrampoline(MacroAssembler* masm) { |
| 484 | // Open a frame scope to indicate that there is a frame on the stack. The |
| 485 | // MANUAL indicates that the scope shouldn't actually generate code to set up |
| 486 | // the frame (that is done below). |
| 487 | FrameScope frame_scope(masm, StackFrame::MANUAL); |
| 488 | __ pushq(rbp); // Caller's frame pointer. |
| 489 | __ movp(rbp, rsp); |
| 490 | __ Push(rsi); // Callee's context. |
| 491 | __ Push(rdi); // Callee's JS function. |
| 492 | __ Push(rdx); // Callee's new target. |
| 493 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 494 | // Get the bytecode array from the function object and load the pointer to the |
| 495 | // first entry into edi (InterpreterBytecodeRegister). |
| 496 | __ movp(rax, FieldOperand(rdi, JSFunction::kSharedFunctionInfoOffset)); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame^] | 497 | |
| 498 | Label load_debug_bytecode_array, bytecode_array_loaded; |
| 499 | DCHECK_EQ(Smi::FromInt(0), DebugInfo::uninitialized()); |
| 500 | __ cmpp(FieldOperand(rax, SharedFunctionInfo::kDebugInfoOffset), |
| 501 | Immediate(0)); |
| 502 | __ j(not_equal, &load_debug_bytecode_array); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 503 | __ movp(kInterpreterBytecodeArrayRegister, |
| 504 | FieldOperand(rax, SharedFunctionInfo::kFunctionDataOffset)); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame^] | 505 | __ bind(&bytecode_array_loaded); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 506 | |
| 507 | if (FLAG_debug_code) { |
| 508 | // Check function data field is actually a BytecodeArray object. |
| 509 | __ AssertNotSmi(kInterpreterBytecodeArrayRegister); |
| 510 | __ CmpObjectType(kInterpreterBytecodeArrayRegister, BYTECODE_ARRAY_TYPE, |
| 511 | rax); |
| 512 | __ Assert(equal, kFunctionDataShouldBeBytecodeArrayOnInterpreterEntry); |
| 513 | } |
| 514 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame^] | 515 | // Push bytecode array. |
| 516 | __ Push(kInterpreterBytecodeArrayRegister); |
| 517 | // Push zero for bytecode array offset. |
| 518 | __ Push(Immediate(0)); |
| 519 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 520 | // Allocate the local and temporary register file on the stack. |
| 521 | { |
| 522 | // Load frame size from the BytecodeArray object. |
| 523 | __ movl(rcx, FieldOperand(kInterpreterBytecodeArrayRegister, |
| 524 | BytecodeArray::kFrameSizeOffset)); |
| 525 | |
| 526 | // Do a stack check to ensure we don't go over the limit. |
| 527 | Label ok; |
| 528 | __ movp(rdx, rsp); |
| 529 | __ subp(rdx, rcx); |
| 530 | __ CompareRoot(rdx, Heap::kRealStackLimitRootIndex); |
| 531 | __ j(above_equal, &ok, Label::kNear); |
| 532 | __ CallRuntime(Runtime::kThrowStackOverflow); |
| 533 | __ bind(&ok); |
| 534 | |
| 535 | // If ok, push undefined as the initial value for all register file entries. |
| 536 | Label loop_header; |
| 537 | Label loop_check; |
| 538 | __ LoadRoot(rdx, Heap::kUndefinedValueRootIndex); |
| 539 | __ j(always, &loop_check); |
| 540 | __ bind(&loop_header); |
| 541 | // TODO(rmcilroy): Consider doing more than one push per loop iteration. |
| 542 | __ Push(rdx); |
| 543 | // Continue loop if not done. |
| 544 | __ bind(&loop_check); |
| 545 | __ subp(rcx, Immediate(kPointerSize)); |
| 546 | __ j(greater_equal, &loop_header, Label::kNear); |
| 547 | } |
| 548 | |
| 549 | // TODO(rmcilroy): List of things not currently dealt with here but done in |
| 550 | // fullcodegen's prologue: |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 551 | // - Call ProfileEntryHookStub when isolate has a function_entry_hook. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 552 | // - Code aging of the BytecodeArray object. |
| 553 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 554 | // Load accumulator, register file, bytecode offset, dispatch table into |
| 555 | // registers. |
| 556 | __ LoadRoot(kInterpreterAccumulatorRegister, Heap::kUndefinedValueRootIndex); |
| 557 | __ movp(kInterpreterRegisterFileRegister, rbp); |
| 558 | __ addp(kInterpreterRegisterFileRegister, |
| 559 | Immediate(InterpreterFrameConstants::kRegisterFilePointerFromFp)); |
| 560 | __ movp(kInterpreterBytecodeOffsetRegister, |
| 561 | Immediate(BytecodeArray::kHeaderSize - kHeapObjectTag)); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame^] | 562 | __ Move( |
| 563 | kInterpreterDispatchTableRegister, |
| 564 | ExternalReference::interpreter_dispatch_table_address(masm->isolate())); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 565 | |
| 566 | // Dispatch to the first bytecode handler for the function. |
| 567 | __ movzxbp(rbx, Operand(kInterpreterBytecodeArrayRegister, |
| 568 | kInterpreterBytecodeOffsetRegister, times_1, 0)); |
| 569 | __ movp(rbx, Operand(kInterpreterDispatchTableRegister, rbx, |
| 570 | times_pointer_size, 0)); |
| 571 | // TODO(rmcilroy): Make dispatch table point to code entrys to avoid untagging |
| 572 | // and header removal. |
| 573 | __ addp(rbx, Immediate(Code::kHeaderSize - kHeapObjectTag)); |
| 574 | __ call(rbx); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame^] | 575 | |
| 576 | // Even though the first bytecode handler was called, we will never return. |
| 577 | __ Abort(kUnexpectedReturnFromBytecodeHandler); |
| 578 | |
| 579 | // Load debug copy of the bytecode array. |
| 580 | __ bind(&load_debug_bytecode_array); |
| 581 | Register debug_info = kInterpreterBytecodeArrayRegister; |
| 582 | __ movp(debug_info, FieldOperand(rax, SharedFunctionInfo::kDebugInfoOffset)); |
| 583 | __ movp(kInterpreterBytecodeArrayRegister, |
| 584 | FieldOperand(debug_info, DebugInfo::kAbstractCodeIndex)); |
| 585 | __ jmp(&bytecode_array_loaded); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 586 | } |
| 587 | |
| 588 | |
| 589 | void Builtins::Generate_InterpreterExitTrampoline(MacroAssembler* masm) { |
| 590 | // TODO(rmcilroy): List of things not currently dealt with here but done in |
| 591 | // fullcodegen's EmitReturnSequence. |
| 592 | // - Supporting FLAG_trace for Runtime::TraceExit. |
| 593 | // - Support profiler (specifically decrementing profiling_counter |
| 594 | // appropriately and calling out to HandleInterrupts if necessary). |
| 595 | |
| 596 | // The return value is in accumulator, which is already in rax. |
| 597 | |
| 598 | // Leave the frame (also dropping the register file). |
| 599 | __ leave(); |
| 600 | |
| 601 | // Drop receiver + arguments and return. |
| 602 | __ movl(rbx, FieldOperand(kInterpreterBytecodeArrayRegister, |
| 603 | BytecodeArray::kParameterSizeOffset)); |
| 604 | __ PopReturnAddressTo(rcx); |
| 605 | __ addp(rsp, rbx); |
| 606 | __ PushReturnAddressFrom(rcx); |
| 607 | __ ret(0); |
| 608 | } |
| 609 | |
| 610 | |
| 611 | static void Generate_InterpreterPushArgs(MacroAssembler* masm, |
| 612 | bool push_receiver) { |
| 613 | // ----------- S t a t e ------------- |
| 614 | // -- rax : the number of arguments (not including the receiver) |
| 615 | // -- rbx : the address of the first argument to be pushed. Subsequent |
| 616 | // arguments should be consecutive above this, in the same order as |
| 617 | // they are to be pushed onto the stack. |
| 618 | // ----------------------------------- |
| 619 | |
| 620 | // Find the address of the last argument. |
| 621 | __ movp(rcx, rax); |
| 622 | if (push_receiver) { |
| 623 | __ addp(rcx, Immediate(1)); // Add one for receiver. |
| 624 | } |
| 625 | |
| 626 | __ shlp(rcx, Immediate(kPointerSizeLog2)); |
| 627 | __ negp(rcx); |
| 628 | __ addp(rcx, rbx); |
| 629 | |
| 630 | // Push the arguments. |
| 631 | Label loop_header, loop_check; |
| 632 | __ j(always, &loop_check); |
| 633 | __ bind(&loop_header); |
| 634 | __ Push(Operand(rbx, 0)); |
| 635 | __ subp(rbx, Immediate(kPointerSize)); |
| 636 | __ bind(&loop_check); |
| 637 | __ cmpp(rbx, rcx); |
| 638 | __ j(greater, &loop_header, Label::kNear); |
| 639 | } |
| 640 | |
| 641 | |
| 642 | // static |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame^] | 643 | void Builtins::Generate_InterpreterPushArgsAndCallImpl( |
| 644 | MacroAssembler* masm, TailCallMode tail_call_mode) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 645 | // ----------- S t a t e ------------- |
| 646 | // -- rax : the number of arguments (not including the receiver) |
| 647 | // -- rbx : the address of the first argument to be pushed. Subsequent |
| 648 | // arguments should be consecutive above this, in the same order as |
| 649 | // they are to be pushed onto the stack. |
| 650 | // -- rdi : the target to call (can be any Object). |
| 651 | // ----------------------------------- |
| 652 | |
| 653 | // Pop return address to allow tail-call after pushing arguments. |
| 654 | __ PopReturnAddressTo(kScratchRegister); |
| 655 | |
| 656 | Generate_InterpreterPushArgs(masm, true); |
| 657 | |
| 658 | // Call the target. |
| 659 | __ PushReturnAddressFrom(kScratchRegister); // Re-push return address. |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame^] | 660 | __ Jump(masm->isolate()->builtins()->Call(ConvertReceiverMode::kAny, |
| 661 | tail_call_mode), |
| 662 | RelocInfo::CODE_TARGET); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 663 | } |
| 664 | |
| 665 | |
| 666 | // static |
| 667 | void Builtins::Generate_InterpreterPushArgsAndConstruct(MacroAssembler* masm) { |
| 668 | // ----------- S t a t e ------------- |
| 669 | // -- rax : the number of arguments (not including the receiver) |
| 670 | // -- rdx : the new target (either the same as the constructor or |
| 671 | // the JSFunction on which new was invoked initially) |
| 672 | // -- rdi : the constructor to call (can be any Object) |
| 673 | // -- rbx : the address of the first argument to be pushed. Subsequent |
| 674 | // arguments should be consecutive above this, in the same order as |
| 675 | // they are to be pushed onto the stack. |
| 676 | // ----------------------------------- |
| 677 | |
| 678 | // Pop return address to allow tail-call after pushing arguments. |
| 679 | __ PopReturnAddressTo(kScratchRegister); |
| 680 | |
| 681 | // Push slot for the receiver to be constructed. |
| 682 | __ Push(Immediate(0)); |
| 683 | |
| 684 | Generate_InterpreterPushArgs(masm, false); |
| 685 | |
| 686 | // Push return address in preparation for the tail-call. |
| 687 | __ PushReturnAddressFrom(kScratchRegister); |
| 688 | |
| 689 | // Call the constructor (rax, rdx, rdi passed on). |
| 690 | __ Jump(masm->isolate()->builtins()->Construct(), RelocInfo::CODE_TARGET); |
| 691 | } |
| 692 | |
| 693 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame^] | 694 | static void Generate_EnterBytecodeDispatch(MacroAssembler* masm) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 695 | // Initialize register file register and dispatch table register. |
| 696 | __ movp(kInterpreterRegisterFileRegister, rbp); |
| 697 | __ addp(kInterpreterRegisterFileRegister, |
| 698 | Immediate(InterpreterFrameConstants::kRegisterFilePointerFromFp)); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame^] | 699 | __ Move( |
| 700 | kInterpreterDispatchTableRegister, |
| 701 | ExternalReference::interpreter_dispatch_table_address(masm->isolate())); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 702 | |
| 703 | // Get the context from the frame. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 704 | __ movp(kContextRegister, |
| 705 | Operand(kInterpreterRegisterFileRegister, |
| 706 | InterpreterFrameConstants::kContextFromRegisterPointer)); |
| 707 | |
| 708 | // Get the bytecode array pointer from the frame. |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame^] | 709 | __ movp( |
| 710 | kInterpreterBytecodeArrayRegister, |
| 711 | Operand(kInterpreterRegisterFileRegister, |
| 712 | InterpreterFrameConstants::kBytecodeArrayFromRegisterPointer)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 713 | |
| 714 | if (FLAG_debug_code) { |
| 715 | // Check function data field is actually a BytecodeArray object. |
| 716 | __ AssertNotSmi(kInterpreterBytecodeArrayRegister); |
| 717 | __ CmpObjectType(kInterpreterBytecodeArrayRegister, BYTECODE_ARRAY_TYPE, |
| 718 | rbx); |
| 719 | __ Assert(equal, kFunctionDataShouldBeBytecodeArrayOnInterpreterEntry); |
| 720 | } |
| 721 | |
| 722 | // Get the target bytecode offset from the frame. |
| 723 | __ movp( |
| 724 | kInterpreterBytecodeOffsetRegister, |
| 725 | Operand(kInterpreterRegisterFileRegister, |
| 726 | InterpreterFrameConstants::kBytecodeOffsetFromRegisterPointer)); |
| 727 | __ SmiToInteger32(kInterpreterBytecodeOffsetRegister, |
| 728 | kInterpreterBytecodeOffsetRegister); |
| 729 | |
| 730 | // Dispatch to the target bytecode. |
| 731 | __ movzxbp(rbx, Operand(kInterpreterBytecodeArrayRegister, |
| 732 | kInterpreterBytecodeOffsetRegister, times_1, 0)); |
| 733 | __ movp(rbx, Operand(kInterpreterDispatchTableRegister, rbx, |
| 734 | times_pointer_size, 0)); |
| 735 | __ addp(rbx, Immediate(Code::kHeaderSize - kHeapObjectTag)); |
| 736 | __ jmp(rbx); |
| 737 | } |
| 738 | |
| 739 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame^] | 740 | static void Generate_InterpreterNotifyDeoptimizedHelper( |
| 741 | MacroAssembler* masm, Deoptimizer::BailoutType type) { |
| 742 | // Enter an internal frame. |
| 743 | { |
| 744 | FrameScope scope(masm, StackFrame::INTERNAL); |
| 745 | |
| 746 | // Pass the deoptimization type to the runtime system. |
| 747 | __ Push(Smi::FromInt(static_cast<int>(type))); |
| 748 | __ CallRuntime(Runtime::kNotifyDeoptimized); |
| 749 | // Tear down internal frame. |
| 750 | } |
| 751 | |
| 752 | // Drop state (we don't use these for interpreter deopts) and and pop the |
| 753 | // accumulator value into the accumulator register and push PC at top |
| 754 | // of stack (to simulate initial call to bytecode handler in interpreter entry |
| 755 | // trampoline). |
| 756 | __ Pop(rbx); |
| 757 | __ Drop(1); |
| 758 | __ Pop(kInterpreterAccumulatorRegister); |
| 759 | __ Push(rbx); |
| 760 | |
| 761 | // Enter the bytecode dispatch. |
| 762 | Generate_EnterBytecodeDispatch(masm); |
| 763 | } |
| 764 | |
| 765 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 766 | void Builtins::Generate_InterpreterNotifyDeoptimized(MacroAssembler* masm) { |
| 767 | Generate_InterpreterNotifyDeoptimizedHelper(masm, Deoptimizer::EAGER); |
| 768 | } |
| 769 | |
| 770 | |
| 771 | void Builtins::Generate_InterpreterNotifySoftDeoptimized(MacroAssembler* masm) { |
| 772 | Generate_InterpreterNotifyDeoptimizedHelper(masm, Deoptimizer::SOFT); |
| 773 | } |
| 774 | |
| 775 | |
| 776 | void Builtins::Generate_InterpreterNotifyLazyDeoptimized(MacroAssembler* masm) { |
| 777 | Generate_InterpreterNotifyDeoptimizedHelper(masm, Deoptimizer::LAZY); |
| 778 | } |
| 779 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame^] | 780 | void Builtins::Generate_InterpreterEnterBytecodeDispatch(MacroAssembler* masm) { |
| 781 | // Set the address of the interpreter entry trampoline as a return address. |
| 782 | // This simulates the initial call to bytecode handlers in interpreter entry |
| 783 | // trampoline. The return will never actually be taken, but our stack walker |
| 784 | // uses this address to determine whether a frame is interpreted. |
| 785 | __ Push(masm->isolate()->builtins()->InterpreterEntryTrampoline()); |
| 786 | |
| 787 | Generate_EnterBytecodeDispatch(masm); |
| 788 | } |
| 789 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 790 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 791 | void Builtins::Generate_CompileLazy(MacroAssembler* masm) { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame^] | 792 | GenerateTailCallToReturnedCode(masm, Runtime::kCompileLazy); |
Iain Merrick | 7568138 | 2010-08-19 15:07:18 +0100 | [diff] [blame] | 793 | } |
| 794 | |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 795 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 796 | void Builtins::Generate_CompileOptimized(MacroAssembler* masm) { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame^] | 797 | GenerateTailCallToReturnedCode(masm, |
| 798 | Runtime::kCompileOptimized_NotConcurrent); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 799 | } |
| 800 | |
| 801 | |
| 802 | void Builtins::Generate_CompileOptimizedConcurrent(MacroAssembler* masm) { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame^] | 803 | GenerateTailCallToReturnedCode(masm, Runtime::kCompileOptimized_Concurrent); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 804 | } |
| 805 | |
| 806 | |
| 807 | static void GenerateMakeCodeYoungAgainCommon(MacroAssembler* masm) { |
| 808 | // For now, we are relying on the fact that make_code_young doesn't do any |
| 809 | // garbage collection which allows us to save/restore the registers without |
| 810 | // worrying about which of them contain pointers. We also don't build an |
| 811 | // internal frame to make the code faster, since we shouldn't have to do stack |
| 812 | // crawls in MakeCodeYoung. This seems a bit fragile. |
| 813 | |
| 814 | // Re-execute the code that was patched back to the young age when |
| 815 | // the stub returns. |
| 816 | __ subp(Operand(rsp, 0), Immediate(5)); |
| 817 | __ Pushad(); |
| 818 | __ Move(arg_reg_2, ExternalReference::isolate_address(masm->isolate())); |
| 819 | __ movp(arg_reg_1, Operand(rsp, kNumSafepointRegisters * kPointerSize)); |
| 820 | { // NOLINT |
| 821 | FrameScope scope(masm, StackFrame::MANUAL); |
| 822 | __ PrepareCallCFunction(2); |
| 823 | __ CallCFunction( |
| 824 | ExternalReference::get_make_code_young_function(masm->isolate()), 2); |
| 825 | } |
| 826 | __ Popad(); |
| 827 | __ ret(0); |
| 828 | } |
| 829 | |
| 830 | |
| 831 | #define DEFINE_CODE_AGE_BUILTIN_GENERATOR(C) \ |
| 832 | void Builtins::Generate_Make##C##CodeYoungAgainEvenMarking( \ |
| 833 | MacroAssembler* masm) { \ |
| 834 | GenerateMakeCodeYoungAgainCommon(masm); \ |
| 835 | } \ |
| 836 | void Builtins::Generate_Make##C##CodeYoungAgainOddMarking( \ |
| 837 | MacroAssembler* masm) { \ |
| 838 | GenerateMakeCodeYoungAgainCommon(masm); \ |
| 839 | } |
| 840 | CODE_AGE_LIST(DEFINE_CODE_AGE_BUILTIN_GENERATOR) |
| 841 | #undef DEFINE_CODE_AGE_BUILTIN_GENERATOR |
| 842 | |
| 843 | |
| 844 | void Builtins::Generate_MarkCodeAsExecutedOnce(MacroAssembler* masm) { |
| 845 | // For now, as in GenerateMakeCodeYoungAgainCommon, we are relying on the fact |
| 846 | // that make_code_young doesn't do any garbage collection which allows us to |
| 847 | // save/restore the registers without worrying about which of them contain |
| 848 | // pointers. |
| 849 | __ Pushad(); |
| 850 | __ Move(arg_reg_2, ExternalReference::isolate_address(masm->isolate())); |
| 851 | __ movp(arg_reg_1, Operand(rsp, kNumSafepointRegisters * kPointerSize)); |
| 852 | __ subp(arg_reg_1, Immediate(Assembler::kShortCallInstructionLength)); |
| 853 | { // NOLINT |
| 854 | FrameScope scope(masm, StackFrame::MANUAL); |
| 855 | __ PrepareCallCFunction(2); |
| 856 | __ CallCFunction( |
| 857 | ExternalReference::get_mark_code_as_executed_function(masm->isolate()), |
| 858 | 2); |
| 859 | } |
| 860 | __ Popad(); |
| 861 | |
| 862 | // Perform prologue operations usually performed by the young code stub. |
| 863 | __ PopReturnAddressTo(kScratchRegister); |
| 864 | __ pushq(rbp); // Caller's frame pointer. |
| 865 | __ movp(rbp, rsp); |
| 866 | __ Push(rsi); // Callee's context. |
| 867 | __ Push(rdi); // Callee's JS Function. |
| 868 | __ PushReturnAddressFrom(kScratchRegister); |
| 869 | |
| 870 | // Jump to point after the code-age stub. |
| 871 | __ ret(0); |
| 872 | } |
| 873 | |
| 874 | |
| 875 | void Builtins::Generate_MarkCodeAsExecutedTwice(MacroAssembler* masm) { |
| 876 | GenerateMakeCodeYoungAgainCommon(masm); |
| 877 | } |
| 878 | |
| 879 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 880 | void Builtins::Generate_MarkCodeAsToBeExecutedOnce(MacroAssembler* masm) { |
| 881 | Generate_MarkCodeAsExecutedOnce(masm); |
| 882 | } |
| 883 | |
| 884 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 885 | static void Generate_NotifyStubFailureHelper(MacroAssembler* masm, |
| 886 | SaveFPRegsMode save_doubles) { |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 887 | // Enter an internal frame. |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 888 | { |
| 889 | FrameScope scope(masm, StackFrame::INTERNAL); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 890 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 891 | // Preserve registers across notification, this is important for compiled |
| 892 | // stubs that tail call the runtime on deopts passing their parameters in |
| 893 | // registers. |
| 894 | __ Pushad(); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 895 | __ CallRuntime(Runtime::kNotifyStubFailure, save_doubles); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 896 | __ Popad(); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 897 | // Tear down internal frame. |
| 898 | } |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 899 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 900 | __ DropUnderReturnAddress(1); // Ignore state offset |
| 901 | __ ret(0); // Return to IC Miss stub, continuation still on stack. |
| 902 | } |
| 903 | |
| 904 | |
| 905 | void Builtins::Generate_NotifyStubFailure(MacroAssembler* masm) { |
| 906 | Generate_NotifyStubFailureHelper(masm, kDontSaveFPRegs); |
| 907 | } |
| 908 | |
| 909 | |
| 910 | void Builtins::Generate_NotifyStubFailureSaveDoubles(MacroAssembler* masm) { |
| 911 | Generate_NotifyStubFailureHelper(masm, kSaveFPRegs); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 912 | } |
| 913 | |
| 914 | |
| 915 | static void Generate_NotifyDeoptimizedHelper(MacroAssembler* masm, |
| 916 | Deoptimizer::BailoutType type) { |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 917 | // Enter an internal frame. |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 918 | { |
| 919 | FrameScope scope(masm, StackFrame::INTERNAL); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 920 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 921 | // Pass the deoptimization type to the runtime system. |
| 922 | __ Push(Smi::FromInt(static_cast<int>(type))); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 923 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 924 | __ CallRuntime(Runtime::kNotifyDeoptimized); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 925 | // Tear down internal frame. |
| 926 | } |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 927 | |
| 928 | // Get the full codegen state from the stack and untag it. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 929 | __ SmiToInteger32(kScratchRegister, Operand(rsp, kPCOnStackSize)); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 930 | |
| 931 | // Switch on the state. |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 932 | Label not_no_registers, not_tos_rax; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 933 | __ cmpp(kScratchRegister, Immediate(FullCodeGenerator::NO_REGISTERS)); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 934 | __ j(not_equal, ¬_no_registers, Label::kNear); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 935 | __ ret(1 * kPointerSize); // Remove state. |
| 936 | |
| 937 | __ bind(¬_no_registers); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 938 | __ movp(rax, Operand(rsp, kPCOnStackSize + kPointerSize)); |
| 939 | __ cmpp(kScratchRegister, Immediate(FullCodeGenerator::TOS_REG)); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 940 | __ j(not_equal, ¬_tos_rax, Label::kNear); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 941 | __ ret(2 * kPointerSize); // Remove state, rax. |
| 942 | |
| 943 | __ bind(¬_tos_rax); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 944 | __ Abort(kNoCasesLeft); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 945 | } |
| 946 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 947 | |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 948 | void Builtins::Generate_NotifyDeoptimized(MacroAssembler* masm) { |
| 949 | Generate_NotifyDeoptimizedHelper(masm, Deoptimizer::EAGER); |
| 950 | } |
| 951 | |
| 952 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 953 | void Builtins::Generate_NotifySoftDeoptimized(MacroAssembler* masm) { |
| 954 | Generate_NotifyDeoptimizedHelper(masm, Deoptimizer::SOFT); |
| 955 | } |
| 956 | |
| 957 | |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 958 | void Builtins::Generate_NotifyLazyDeoptimized(MacroAssembler* masm) { |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 959 | Generate_NotifyDeoptimizedHelper(masm, Deoptimizer::LAZY); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 960 | } |
| 961 | |
| 962 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 963 | // static |
| 964 | void Builtins::Generate_DatePrototype_GetField(MacroAssembler* masm, |
| 965 | int field_index) { |
| 966 | // ----------- S t a t e ------------- |
| 967 | // -- rsp[0] : return address |
| 968 | // -- rsp[8] : receiver |
| 969 | // ----------------------------------- |
| 970 | |
| 971 | // 1. Load receiver into rax and check that it's actually a JSDate object. |
| 972 | Label receiver_not_date; |
| 973 | { |
| 974 | StackArgumentsAccessor args(rsp, 0); |
| 975 | __ movp(rax, args.GetReceiverOperand()); |
| 976 | __ JumpIfSmi(rax, &receiver_not_date); |
| 977 | __ CmpObjectType(rax, JS_DATE_TYPE, rbx); |
| 978 | __ j(not_equal, &receiver_not_date); |
| 979 | } |
| 980 | |
| 981 | // 2. Load the specified date field, falling back to the runtime as necessary. |
| 982 | if (field_index == JSDate::kDateValue) { |
| 983 | __ movp(rax, FieldOperand(rax, JSDate::kValueOffset)); |
| 984 | } else { |
| 985 | if (field_index < JSDate::kFirstUncachedField) { |
| 986 | Label stamp_mismatch; |
| 987 | __ Load(rdx, ExternalReference::date_cache_stamp(masm->isolate())); |
| 988 | __ cmpp(rdx, FieldOperand(rax, JSDate::kCacheStampOffset)); |
| 989 | __ j(not_equal, &stamp_mismatch, Label::kNear); |
| 990 | __ movp(rax, FieldOperand( |
| 991 | rax, JSDate::kValueOffset + field_index * kPointerSize)); |
| 992 | __ ret(1 * kPointerSize); |
| 993 | __ bind(&stamp_mismatch); |
| 994 | } |
| 995 | FrameScope scope(masm, StackFrame::INTERNAL); |
| 996 | __ PrepareCallCFunction(2); |
| 997 | __ Move(arg_reg_1, rax); |
| 998 | __ Move(arg_reg_2, Smi::FromInt(field_index)); |
| 999 | __ CallCFunction( |
| 1000 | ExternalReference::get_date_field_function(masm->isolate()), 2); |
| 1001 | } |
| 1002 | __ ret(1 * kPointerSize); |
| 1003 | |
| 1004 | // 3. Raise a TypeError if the receiver is not a date. |
| 1005 | __ bind(&receiver_not_date); |
| 1006 | { |
| 1007 | FrameScope scope(masm, StackFrame::MANUAL); |
| 1008 | __ EnterFrame(StackFrame::INTERNAL); |
| 1009 | __ CallRuntime(Runtime::kThrowNotDateError); |
| 1010 | } |
| 1011 | } |
| 1012 | |
| 1013 | |
| 1014 | // static |
| 1015 | void Builtins::Generate_FunctionPrototypeApply(MacroAssembler* masm) { |
| 1016 | // ----------- S t a t e ------------- |
| 1017 | // -- rax : argc |
| 1018 | // -- rsp[0] : return address |
| 1019 | // -- rsp[8] : argArray |
| 1020 | // -- rsp[16] : thisArg |
| 1021 | // -- rsp[24] : receiver |
| 1022 | // ----------------------------------- |
| 1023 | |
| 1024 | // 1. Load receiver into rdi, argArray into rax (if present), remove all |
| 1025 | // arguments from the stack (including the receiver), and push thisArg (if |
| 1026 | // present) instead. |
| 1027 | { |
| 1028 | Label no_arg_array, no_this_arg; |
| 1029 | StackArgumentsAccessor args(rsp, rax); |
| 1030 | __ LoadRoot(rdx, Heap::kUndefinedValueRootIndex); |
| 1031 | __ movp(rbx, rdx); |
| 1032 | __ movp(rdi, args.GetReceiverOperand()); |
| 1033 | __ testp(rax, rax); |
| 1034 | __ j(zero, &no_this_arg, Label::kNear); |
| 1035 | { |
| 1036 | __ movp(rdx, args.GetArgumentOperand(1)); |
| 1037 | __ cmpp(rax, Immediate(1)); |
| 1038 | __ j(equal, &no_arg_array, Label::kNear); |
| 1039 | __ movp(rbx, args.GetArgumentOperand(2)); |
| 1040 | __ bind(&no_arg_array); |
| 1041 | } |
| 1042 | __ bind(&no_this_arg); |
| 1043 | __ PopReturnAddressTo(rcx); |
| 1044 | __ leap(rsp, Operand(rsp, rax, times_pointer_size, kPointerSize)); |
| 1045 | __ Push(rdx); |
| 1046 | __ PushReturnAddressFrom(rcx); |
| 1047 | __ movp(rax, rbx); |
| 1048 | } |
| 1049 | |
| 1050 | // ----------- S t a t e ------------- |
| 1051 | // -- rax : argArray |
| 1052 | // -- rdi : receiver |
| 1053 | // -- rsp[0] : return address |
| 1054 | // -- rsp[8] : thisArg |
| 1055 | // ----------------------------------- |
| 1056 | |
| 1057 | // 2. Make sure the receiver is actually callable. |
| 1058 | Label receiver_not_callable; |
| 1059 | __ JumpIfSmi(rdi, &receiver_not_callable, Label::kNear); |
| 1060 | __ movp(rcx, FieldOperand(rdi, HeapObject::kMapOffset)); |
| 1061 | __ testb(FieldOperand(rcx, Map::kBitFieldOffset), |
| 1062 | Immediate(1 << Map::kIsCallable)); |
| 1063 | __ j(zero, &receiver_not_callable, Label::kNear); |
| 1064 | |
| 1065 | // 3. Tail call with no arguments if argArray is null or undefined. |
| 1066 | Label no_arguments; |
| 1067 | __ JumpIfRoot(rax, Heap::kNullValueRootIndex, &no_arguments, Label::kNear); |
| 1068 | __ JumpIfRoot(rax, Heap::kUndefinedValueRootIndex, &no_arguments, |
| 1069 | Label::kNear); |
| 1070 | |
| 1071 | // 4a. Apply the receiver to the given argArray (passing undefined for |
| 1072 | // new.target). |
| 1073 | __ LoadRoot(rdx, Heap::kUndefinedValueRootIndex); |
| 1074 | __ Jump(masm->isolate()->builtins()->Apply(), RelocInfo::CODE_TARGET); |
| 1075 | |
| 1076 | // 4b. The argArray is either null or undefined, so we tail call without any |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame^] | 1077 | // arguments to the receiver. Since we did not create a frame for |
| 1078 | // Function.prototype.apply() yet, we use a normal Call builtin here. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1079 | __ bind(&no_arguments); |
| 1080 | { |
| 1081 | __ Set(rax, 0); |
| 1082 | __ Jump(masm->isolate()->builtins()->Call(), RelocInfo::CODE_TARGET); |
| 1083 | } |
| 1084 | |
| 1085 | // 4c. The receiver is not callable, throw an appropriate TypeError. |
| 1086 | __ bind(&receiver_not_callable); |
| 1087 | { |
| 1088 | StackArgumentsAccessor args(rsp, 0); |
| 1089 | __ movp(args.GetReceiverOperand(), rdi); |
| 1090 | __ TailCallRuntime(Runtime::kThrowApplyNonFunction); |
| 1091 | } |
| 1092 | } |
| 1093 | |
| 1094 | |
| 1095 | // static |
| 1096 | void Builtins::Generate_FunctionPrototypeCall(MacroAssembler* masm) { |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1097 | // Stack Layout: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1098 | // rsp[0] : Return address |
| 1099 | // rsp[8] : Argument n |
| 1100 | // rsp[16] : Argument n-1 |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1101 | // ... |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1102 | // rsp[8 * n] : Argument 1 |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1103 | // rsp[8 * (n + 1)] : Receiver (callable to call) |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1104 | // |
| 1105 | // rax contains the number of arguments, n, not counting the receiver. |
| 1106 | // |
| 1107 | // 1. Make sure we have at least one argument. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1108 | { |
| 1109 | Label done; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1110 | __ testp(rax, rax); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1111 | __ j(not_zero, &done, Label::kNear); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1112 | __ PopReturnAddressTo(rbx); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1113 | __ PushRoot(Heap::kUndefinedValueRootIndex); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1114 | __ PushReturnAddressFrom(rbx); |
| 1115 | __ incp(rax); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1116 | __ bind(&done); |
| 1117 | } |
| 1118 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1119 | // 2. Get the callable to call (passed as receiver) from the stack. |
| 1120 | { |
| 1121 | StackArgumentsAccessor args(rsp, rax); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1122 | __ movp(rdi, args.GetReceiverOperand()); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1123 | } |
| 1124 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1125 | // 3. Shift arguments and return address one slot down on the stack |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1126 | // (overwriting the original receiver). Adjust argument count to make |
| 1127 | // the original first argument the new receiver. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1128 | { |
| 1129 | Label loop; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1130 | __ movp(rcx, rax); |
| 1131 | StackArgumentsAccessor args(rsp, rcx); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1132 | __ bind(&loop); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1133 | __ movp(rbx, args.GetArgumentOperand(1)); |
| 1134 | __ movp(args.GetArgumentOperand(0), rbx); |
| 1135 | __ decp(rcx); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1136 | __ j(not_zero, &loop); // While non-zero. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1137 | __ DropUnderReturnAddress(1, rbx); // Drop one slot under return address. |
| 1138 | __ decp(rax); // One fewer argument (first argument is new receiver). |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1139 | } |
| 1140 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1141 | // 4. Call the callable. |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame^] | 1142 | // Since we did not create a frame for Function.prototype.call() yet, |
| 1143 | // we use a normal Call builtin here. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1144 | __ Jump(masm->isolate()->builtins()->Call(), RelocInfo::CODE_TARGET); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1145 | } |
| 1146 | |
| 1147 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1148 | void Builtins::Generate_ReflectApply(MacroAssembler* masm) { |
| 1149 | // ----------- S t a t e ------------- |
| 1150 | // -- rax : argc |
| 1151 | // -- rsp[0] : return address |
| 1152 | // -- rsp[8] : argumentsList |
| 1153 | // -- rsp[16] : thisArgument |
| 1154 | // -- rsp[24] : target |
| 1155 | // -- rsp[32] : receiver |
| 1156 | // ----------------------------------- |
| 1157 | |
| 1158 | // 1. Load target into rdi (if present), argumentsList into rax (if present), |
| 1159 | // remove all arguments from the stack (including the receiver), and push |
| 1160 | // thisArgument (if present) instead. |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1161 | { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1162 | Label done; |
| 1163 | StackArgumentsAccessor args(rsp, rax); |
| 1164 | __ LoadRoot(rdi, Heap::kUndefinedValueRootIndex); |
| 1165 | __ movp(rdx, rdi); |
| 1166 | __ movp(rbx, rdi); |
| 1167 | __ cmpp(rax, Immediate(1)); |
| 1168 | __ j(below, &done, Label::kNear); |
| 1169 | __ movp(rdi, args.GetArgumentOperand(1)); // target |
| 1170 | __ j(equal, &done, Label::kNear); |
| 1171 | __ movp(rdx, args.GetArgumentOperand(2)); // thisArgument |
| 1172 | __ cmpp(rax, Immediate(3)); |
| 1173 | __ j(below, &done, Label::kNear); |
| 1174 | __ movp(rbx, args.GetArgumentOperand(3)); // argumentsList |
| 1175 | __ bind(&done); |
| 1176 | __ PopReturnAddressTo(rcx); |
| 1177 | __ leap(rsp, Operand(rsp, rax, times_pointer_size, kPointerSize)); |
| 1178 | __ Push(rdx); |
| 1179 | __ PushReturnAddressFrom(rcx); |
| 1180 | __ movp(rax, rbx); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1181 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1182 | |
| 1183 | // ----------- S t a t e ------------- |
| 1184 | // -- rax : argumentsList |
| 1185 | // -- rdi : target |
| 1186 | // -- rsp[0] : return address |
| 1187 | // -- rsp[8] : thisArgument |
| 1188 | // ----------------------------------- |
| 1189 | |
| 1190 | // 2. Make sure the target is actually callable. |
| 1191 | Label target_not_callable; |
| 1192 | __ JumpIfSmi(rdi, &target_not_callable, Label::kNear); |
| 1193 | __ movp(rcx, FieldOperand(rdi, HeapObject::kMapOffset)); |
| 1194 | __ testb(FieldOperand(rcx, Map::kBitFieldOffset), |
| 1195 | Immediate(1 << Map::kIsCallable)); |
| 1196 | __ j(zero, &target_not_callable, Label::kNear); |
| 1197 | |
| 1198 | // 3a. Apply the target to the given argumentsList (passing undefined for |
| 1199 | // new.target). |
| 1200 | __ LoadRoot(rdx, Heap::kUndefinedValueRootIndex); |
| 1201 | __ Jump(masm->isolate()->builtins()->Apply(), RelocInfo::CODE_TARGET); |
| 1202 | |
| 1203 | // 3b. The target is not callable, throw an appropriate TypeError. |
| 1204 | __ bind(&target_not_callable); |
| 1205 | { |
| 1206 | StackArgumentsAccessor args(rsp, 0); |
| 1207 | __ movp(args.GetReceiverOperand(), rdi); |
| 1208 | __ TailCallRuntime(Runtime::kThrowApplyNonFunction); |
| 1209 | } |
| 1210 | } |
| 1211 | |
| 1212 | |
| 1213 | void Builtins::Generate_ReflectConstruct(MacroAssembler* masm) { |
| 1214 | // ----------- S t a t e ------------- |
| 1215 | // -- rax : argc |
| 1216 | // -- rsp[0] : return address |
| 1217 | // -- rsp[8] : new.target (optional) |
| 1218 | // -- rsp[16] : argumentsList |
| 1219 | // -- rsp[24] : target |
| 1220 | // -- rsp[32] : receiver |
| 1221 | // ----------------------------------- |
| 1222 | |
| 1223 | // 1. Load target into rdi (if present), argumentsList into rax (if present), |
| 1224 | // new.target into rdx (if present, otherwise use target), remove all |
| 1225 | // arguments from the stack (including the receiver), and push thisArgument |
| 1226 | // (if present) instead. |
| 1227 | { |
| 1228 | Label done; |
| 1229 | StackArgumentsAccessor args(rsp, rax); |
| 1230 | __ LoadRoot(rdi, Heap::kUndefinedValueRootIndex); |
| 1231 | __ movp(rdx, rdi); |
| 1232 | __ movp(rbx, rdi); |
| 1233 | __ cmpp(rax, Immediate(1)); |
| 1234 | __ j(below, &done, Label::kNear); |
| 1235 | __ movp(rdi, args.GetArgumentOperand(1)); // target |
| 1236 | __ movp(rdx, rdi); // new.target defaults to target |
| 1237 | __ j(equal, &done, Label::kNear); |
| 1238 | __ movp(rbx, args.GetArgumentOperand(2)); // argumentsList |
| 1239 | __ cmpp(rax, Immediate(3)); |
| 1240 | __ j(below, &done, Label::kNear); |
| 1241 | __ movp(rdx, args.GetArgumentOperand(3)); // new.target |
| 1242 | __ bind(&done); |
| 1243 | __ PopReturnAddressTo(rcx); |
| 1244 | __ leap(rsp, Operand(rsp, rax, times_pointer_size, kPointerSize)); |
| 1245 | __ PushRoot(Heap::kUndefinedValueRootIndex); |
| 1246 | __ PushReturnAddressFrom(rcx); |
| 1247 | __ movp(rax, rbx); |
| 1248 | } |
| 1249 | |
| 1250 | // ----------- S t a t e ------------- |
| 1251 | // -- rax : argumentsList |
| 1252 | // -- rdx : new.target |
| 1253 | // -- rdi : target |
| 1254 | // -- rsp[0] : return address |
| 1255 | // -- rsp[8] : receiver (undefined) |
| 1256 | // ----------------------------------- |
| 1257 | |
| 1258 | // 2. Make sure the target is actually a constructor. |
| 1259 | Label target_not_constructor; |
| 1260 | __ JumpIfSmi(rdi, &target_not_constructor, Label::kNear); |
| 1261 | __ movp(rcx, FieldOperand(rdi, HeapObject::kMapOffset)); |
| 1262 | __ testb(FieldOperand(rcx, Map::kBitFieldOffset), |
| 1263 | Immediate(1 << Map::kIsConstructor)); |
| 1264 | __ j(zero, &target_not_constructor, Label::kNear); |
| 1265 | |
| 1266 | // 3. Make sure the target is actually a constructor. |
| 1267 | Label new_target_not_constructor; |
| 1268 | __ JumpIfSmi(rdx, &new_target_not_constructor, Label::kNear); |
| 1269 | __ movp(rcx, FieldOperand(rdx, HeapObject::kMapOffset)); |
| 1270 | __ testb(FieldOperand(rcx, Map::kBitFieldOffset), |
| 1271 | Immediate(1 << Map::kIsConstructor)); |
| 1272 | __ j(zero, &new_target_not_constructor, Label::kNear); |
| 1273 | |
| 1274 | // 4a. Construct the target with the given new.target and argumentsList. |
| 1275 | __ Jump(masm->isolate()->builtins()->Apply(), RelocInfo::CODE_TARGET); |
| 1276 | |
| 1277 | // 4b. The target is not a constructor, throw an appropriate TypeError. |
| 1278 | __ bind(&target_not_constructor); |
| 1279 | { |
| 1280 | StackArgumentsAccessor args(rsp, 0); |
| 1281 | __ movp(args.GetReceiverOperand(), rdi); |
| 1282 | __ TailCallRuntime(Runtime::kThrowCalledNonCallable); |
| 1283 | } |
| 1284 | |
| 1285 | // 4c. The new.target is not a constructor, throw an appropriate TypeError. |
| 1286 | __ bind(&new_target_not_constructor); |
| 1287 | { |
| 1288 | StackArgumentsAccessor args(rsp, 0); |
| 1289 | __ movp(args.GetReceiverOperand(), rdx); |
| 1290 | __ TailCallRuntime(Runtime::kThrowCalledNonCallable); |
| 1291 | } |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1292 | } |
| 1293 | |
| 1294 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1295 | void Builtins::Generate_InternalArrayCode(MacroAssembler* masm) { |
| 1296 | // ----------- S t a t e ------------- |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1297 | // -- rax : argc |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1298 | // -- rsp[0] : return address |
| 1299 | // -- rsp[8] : last argument |
| 1300 | // ----------------------------------- |
| 1301 | Label generic_array_code; |
| 1302 | |
| 1303 | // Get the InternalArray function. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1304 | __ LoadNativeContextSlot(Context::INTERNAL_ARRAY_FUNCTION_INDEX, rdi); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1305 | |
| 1306 | if (FLAG_debug_code) { |
| 1307 | // Initial map for the builtin InternalArray functions should be maps. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1308 | __ movp(rbx, FieldOperand(rdi, JSFunction::kPrototypeOrInitialMapOffset)); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1309 | // Will both indicate a NULL and a Smi. |
| 1310 | STATIC_ASSERT(kSmiTag == 0); |
| 1311 | Condition not_smi = NegateCondition(masm->CheckSmi(rbx)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1312 | __ Check(not_smi, kUnexpectedInitialMapForInternalArrayFunction); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1313 | __ CmpObjectType(rbx, MAP_TYPE, rcx); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1314 | __ Check(equal, kUnexpectedInitialMapForInternalArrayFunction); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1315 | } |
| 1316 | |
| 1317 | // Run the native code for the InternalArray function called as a normal |
| 1318 | // function. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1319 | // tail call a stub |
| 1320 | InternalArrayConstructorStub stub(masm->isolate()); |
| 1321 | __ TailCallStub(&stub); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1322 | } |
| 1323 | |
| 1324 | |
| 1325 | void Builtins::Generate_ArrayCode(MacroAssembler* masm) { |
| 1326 | // ----------- S t a t e ------------- |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1327 | // -- rax : argc |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1328 | // -- rsp[0] : return address |
| 1329 | // -- rsp[8] : last argument |
| 1330 | // ----------------------------------- |
| 1331 | Label generic_array_code; |
| 1332 | |
| 1333 | // Get the Array function. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1334 | __ LoadNativeContextSlot(Context::ARRAY_FUNCTION_INDEX, rdi); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1335 | |
| 1336 | if (FLAG_debug_code) { |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 1337 | // Initial map for the builtin Array functions should be maps. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1338 | __ movp(rbx, FieldOperand(rdi, JSFunction::kPrototypeOrInitialMapOffset)); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1339 | // Will both indicate a NULL and a Smi. |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 1340 | STATIC_ASSERT(kSmiTag == 0); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1341 | Condition not_smi = NegateCondition(masm->CheckSmi(rbx)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1342 | __ Check(not_smi, kUnexpectedInitialMapForArrayFunction); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1343 | __ CmpObjectType(rbx, MAP_TYPE, rcx); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1344 | __ Check(equal, kUnexpectedInitialMapForArrayFunction); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1345 | } |
| 1346 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1347 | __ movp(rdx, rdi); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1348 | // Run the native code for the Array function called as a normal function. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1349 | // tail call a stub |
| 1350 | __ LoadRoot(rbx, Heap::kUndefinedValueRootIndex); |
| 1351 | ArrayConstructorStub stub(masm->isolate()); |
| 1352 | __ TailCallStub(&stub); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1353 | } |
| 1354 | |
| 1355 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1356 | // static |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame^] | 1357 | void Builtins::Generate_MathMaxMin(MacroAssembler* masm, MathMaxMinKind kind) { |
| 1358 | // ----------- S t a t e ------------- |
| 1359 | // -- rax : number of arguments |
| 1360 | // -- rsp[0] : return address |
| 1361 | // -- rsp[(argc - n) * 8] : arg[n] (zero-based) |
| 1362 | // -- rsp[(argc + 1) * 8] : receiver |
| 1363 | // ----------------------------------- |
| 1364 | Condition const cc = (kind == MathMaxMinKind::kMin) ? below : above; |
| 1365 | Heap::RootListIndex const root_index = |
| 1366 | (kind == MathMaxMinKind::kMin) ? Heap::kInfinityValueRootIndex |
| 1367 | : Heap::kMinusInfinityValueRootIndex; |
| 1368 | XMMRegister const reg = (kind == MathMaxMinKind::kMin) ? xmm1 : xmm0; |
| 1369 | |
| 1370 | // Load the accumulator with the default return value (either -Infinity or |
| 1371 | // +Infinity), with the tagged value in rdx and the double value in xmm0. |
| 1372 | __ LoadRoot(rdx, root_index); |
| 1373 | __ Movsd(xmm0, FieldOperand(rdx, HeapNumber::kValueOffset)); |
| 1374 | __ Move(rcx, rax); |
| 1375 | |
| 1376 | Label done_loop, loop; |
| 1377 | __ bind(&loop); |
| 1378 | { |
| 1379 | // Check if all parameters done. |
| 1380 | __ testp(rcx, rcx); |
| 1381 | __ j(zero, &done_loop); |
| 1382 | |
| 1383 | // Load the next parameter tagged value into rbx. |
| 1384 | __ movp(rbx, Operand(rsp, rcx, times_pointer_size, 0)); |
| 1385 | |
| 1386 | // Load the double value of the parameter into xmm1, maybe converting the |
| 1387 | // parameter to a number first using the ToNumberStub if necessary. |
| 1388 | Label convert, convert_smi, convert_number, done_convert; |
| 1389 | __ bind(&convert); |
| 1390 | __ JumpIfSmi(rbx, &convert_smi); |
| 1391 | __ JumpIfRoot(FieldOperand(rbx, HeapObject::kMapOffset), |
| 1392 | Heap::kHeapNumberMapRootIndex, &convert_number); |
| 1393 | { |
| 1394 | // Parameter is not a Number, use the ToNumberStub to convert it. |
| 1395 | FrameScope scope(masm, StackFrame::INTERNAL); |
| 1396 | __ Integer32ToSmi(rax, rax); |
| 1397 | __ Integer32ToSmi(rcx, rcx); |
| 1398 | __ Push(rax); |
| 1399 | __ Push(rcx); |
| 1400 | __ Push(rdx); |
| 1401 | __ movp(rax, rbx); |
| 1402 | ToNumberStub stub(masm->isolate()); |
| 1403 | __ CallStub(&stub); |
| 1404 | __ movp(rbx, rax); |
| 1405 | __ Pop(rdx); |
| 1406 | __ Pop(rcx); |
| 1407 | __ Pop(rax); |
| 1408 | { |
| 1409 | // Restore the double accumulator value (xmm0). |
| 1410 | Label restore_smi, done_restore; |
| 1411 | __ JumpIfSmi(rdx, &restore_smi, Label::kNear); |
| 1412 | __ Movsd(xmm0, FieldOperand(rdx, HeapNumber::kValueOffset)); |
| 1413 | __ jmp(&done_restore, Label::kNear); |
| 1414 | __ bind(&restore_smi); |
| 1415 | __ SmiToDouble(xmm0, rdx); |
| 1416 | __ bind(&done_restore); |
| 1417 | } |
| 1418 | __ SmiToInteger32(rcx, rcx); |
| 1419 | __ SmiToInteger32(rax, rax); |
| 1420 | } |
| 1421 | __ jmp(&convert); |
| 1422 | __ bind(&convert_number); |
| 1423 | __ Movsd(xmm1, FieldOperand(rbx, HeapNumber::kValueOffset)); |
| 1424 | __ jmp(&done_convert, Label::kNear); |
| 1425 | __ bind(&convert_smi); |
| 1426 | __ SmiToDouble(xmm1, rbx); |
| 1427 | __ bind(&done_convert); |
| 1428 | |
| 1429 | // Perform the actual comparison with the accumulator value on the left hand |
| 1430 | // side (xmm0) and the next parameter value on the right hand side (xmm1). |
| 1431 | Label compare_equal, compare_nan, compare_swap, done_compare; |
| 1432 | __ Ucomisd(xmm0, xmm1); |
| 1433 | __ j(parity_even, &compare_nan, Label::kNear); |
| 1434 | __ j(cc, &done_compare, Label::kNear); |
| 1435 | __ j(equal, &compare_equal, Label::kNear); |
| 1436 | |
| 1437 | // Result is on the right hand side. |
| 1438 | __ bind(&compare_swap); |
| 1439 | __ Movaps(xmm0, xmm1); |
| 1440 | __ Move(rdx, rbx); |
| 1441 | __ jmp(&done_compare, Label::kNear); |
| 1442 | |
| 1443 | // At least one side is NaN, which means that the result will be NaN too. |
| 1444 | __ bind(&compare_nan); |
| 1445 | __ LoadRoot(rdx, Heap::kNanValueRootIndex); |
| 1446 | __ Movsd(xmm0, FieldOperand(rdx, HeapNumber::kValueOffset)); |
| 1447 | __ jmp(&done_compare, Label::kNear); |
| 1448 | |
| 1449 | // Left and right hand side are equal, check for -0 vs. +0. |
| 1450 | __ bind(&compare_equal); |
| 1451 | __ Movmskpd(kScratchRegister, reg); |
| 1452 | __ testl(kScratchRegister, Immediate(1)); |
| 1453 | __ j(not_zero, &compare_swap); |
| 1454 | |
| 1455 | __ bind(&done_compare); |
| 1456 | __ decp(rcx); |
| 1457 | __ jmp(&loop); |
| 1458 | } |
| 1459 | |
| 1460 | __ bind(&done_loop); |
| 1461 | __ PopReturnAddressTo(rcx); |
| 1462 | __ leap(rsp, Operand(rsp, rax, times_pointer_size, kPointerSize)); |
| 1463 | __ PushReturnAddressFrom(rcx); |
| 1464 | __ movp(rax, rdx); |
| 1465 | __ Ret(); |
| 1466 | } |
| 1467 | |
| 1468 | // static |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1469 | void Builtins::Generate_NumberConstructor(MacroAssembler* masm) { |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1470 | // ----------- S t a t e ------------- |
| 1471 | // -- rax : number of arguments |
| 1472 | // -- rdi : constructor function |
| 1473 | // -- rsp[0] : return address |
| 1474 | // -- rsp[(argc - n) * 8] : arg[n] (zero-based) |
| 1475 | // -- rsp[(argc + 1) * 8] : receiver |
| 1476 | // ----------------------------------- |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1477 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1478 | // 1. Load the first argument into rax and get rid of the rest (including the |
| 1479 | // receiver). |
| 1480 | Label no_arguments; |
| 1481 | { |
| 1482 | StackArgumentsAccessor args(rsp, rax); |
| 1483 | __ testp(rax, rax); |
| 1484 | __ j(zero, &no_arguments, Label::kNear); |
| 1485 | __ movp(rbx, args.GetArgumentOperand(1)); |
| 1486 | __ PopReturnAddressTo(rcx); |
| 1487 | __ leap(rsp, Operand(rsp, rax, times_pointer_size, kPointerSize)); |
| 1488 | __ PushReturnAddressFrom(rcx); |
| 1489 | __ movp(rax, rbx); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1490 | } |
| 1491 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1492 | // 2a. Convert the first argument to a number. |
| 1493 | ToNumberStub stub(masm->isolate()); |
| 1494 | __ TailCallStub(&stub); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1495 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1496 | // 2b. No arguments, return +0 (already in rax). |
| 1497 | __ bind(&no_arguments); |
| 1498 | __ ret(1 * kPointerSize); |
| 1499 | } |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1500 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1501 | |
| 1502 | // static |
| 1503 | void Builtins::Generate_NumberConstructor_ConstructStub(MacroAssembler* masm) { |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1504 | // ----------- S t a t e ------------- |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1505 | // -- rax : number of arguments |
| 1506 | // -- rdi : constructor function |
| 1507 | // -- rdx : new target |
| 1508 | // -- rsp[0] : return address |
| 1509 | // -- rsp[(argc - n) * 8] : arg[n] (zero-based) |
| 1510 | // -- rsp[(argc + 1) * 8] : receiver |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1511 | // ----------------------------------- |
| 1512 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1513 | // 1. Make sure we operate in the context of the called function. |
| 1514 | __ movp(rsi, FieldOperand(rdi, JSFunction::kContextOffset)); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1515 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1516 | // 2. Load the first argument into rbx and get rid of the rest (including the |
| 1517 | // receiver). |
| 1518 | { |
| 1519 | StackArgumentsAccessor args(rsp, rax); |
| 1520 | Label no_arguments, done; |
| 1521 | __ testp(rax, rax); |
| 1522 | __ j(zero, &no_arguments, Label::kNear); |
| 1523 | __ movp(rbx, args.GetArgumentOperand(1)); |
| 1524 | __ jmp(&done, Label::kNear); |
| 1525 | __ bind(&no_arguments); |
| 1526 | __ Move(rbx, Smi::FromInt(0)); |
| 1527 | __ bind(&done); |
| 1528 | __ PopReturnAddressTo(rcx); |
| 1529 | __ leap(rsp, Operand(rsp, rax, times_pointer_size, kPointerSize)); |
| 1530 | __ PushReturnAddressFrom(rcx); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1531 | } |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1532 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1533 | // 3. Make sure rbx is a number. |
| 1534 | { |
| 1535 | Label done_convert; |
| 1536 | __ JumpIfSmi(rbx, &done_convert); |
| 1537 | __ CompareRoot(FieldOperand(rbx, HeapObject::kMapOffset), |
| 1538 | Heap::kHeapNumberMapRootIndex); |
| 1539 | __ j(equal, &done_convert); |
| 1540 | { |
| 1541 | FrameScope scope(masm, StackFrame::INTERNAL); |
| 1542 | __ Push(rdx); |
| 1543 | __ Push(rdi); |
| 1544 | __ Move(rax, rbx); |
| 1545 | ToNumberStub stub(masm->isolate()); |
| 1546 | __ CallStub(&stub); |
| 1547 | __ Move(rbx, rax); |
| 1548 | __ Pop(rdi); |
| 1549 | __ Pop(rdx); |
| 1550 | } |
| 1551 | __ bind(&done_convert); |
| 1552 | } |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1553 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1554 | // 4. Check if new target and constructor differ. |
| 1555 | Label new_object; |
| 1556 | __ cmpp(rdx, rdi); |
| 1557 | __ j(not_equal, &new_object); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1558 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1559 | // 5. Allocate a JSValue wrapper for the number. |
| 1560 | __ AllocateJSValue(rax, rdi, rbx, rcx, &new_object); |
| 1561 | __ Ret(); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1562 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1563 | // 6. Fallback to the runtime to create new object. |
| 1564 | __ bind(&new_object); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1565 | { |
| 1566 | FrameScope scope(masm, StackFrame::INTERNAL); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1567 | __ Push(rbx); // the first argument |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame^] | 1568 | FastNewObjectStub stub(masm->isolate()); |
| 1569 | __ CallStub(&stub); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1570 | __ Pop(FieldOperand(rax, JSValue::kValueOffset)); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1571 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1572 | __ Ret(); |
| 1573 | } |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1574 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1575 | |
| 1576 | // static |
| 1577 | void Builtins::Generate_StringConstructor(MacroAssembler* masm) { |
| 1578 | // ----------- S t a t e ------------- |
| 1579 | // -- rax : number of arguments |
| 1580 | // -- rdi : constructor function |
| 1581 | // -- rsp[0] : return address |
| 1582 | // -- rsp[(argc - n) * 8] : arg[n] (zero-based) |
| 1583 | // -- rsp[(argc + 1) * 8] : receiver |
| 1584 | // ----------------------------------- |
| 1585 | |
| 1586 | // 1. Load the first argument into rax and get rid of the rest (including the |
| 1587 | // receiver). |
| 1588 | Label no_arguments; |
| 1589 | { |
| 1590 | StackArgumentsAccessor args(rsp, rax); |
| 1591 | __ testp(rax, rax); |
| 1592 | __ j(zero, &no_arguments, Label::kNear); |
| 1593 | __ movp(rbx, args.GetArgumentOperand(1)); |
| 1594 | __ PopReturnAddressTo(rcx); |
| 1595 | __ leap(rsp, Operand(rsp, rax, times_pointer_size, kPointerSize)); |
| 1596 | __ PushReturnAddressFrom(rcx); |
| 1597 | __ movp(rax, rbx); |
| 1598 | } |
| 1599 | |
| 1600 | // 2a. At least one argument, return rax if it's a string, otherwise |
| 1601 | // dispatch to appropriate conversion. |
| 1602 | Label to_string, symbol_descriptive_string; |
| 1603 | { |
| 1604 | __ JumpIfSmi(rax, &to_string, Label::kNear); |
| 1605 | STATIC_ASSERT(FIRST_NONSTRING_TYPE == SYMBOL_TYPE); |
| 1606 | __ CmpObjectType(rax, FIRST_NONSTRING_TYPE, rdx); |
| 1607 | __ j(above, &to_string, Label::kNear); |
| 1608 | __ j(equal, &symbol_descriptive_string, Label::kNear); |
| 1609 | __ Ret(); |
| 1610 | } |
| 1611 | |
| 1612 | // 2b. No arguments, return the empty string (and pop the receiver). |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1613 | __ bind(&no_arguments); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1614 | { |
| 1615 | __ LoadRoot(rax, Heap::kempty_stringRootIndex); |
| 1616 | __ ret(1 * kPointerSize); |
| 1617 | } |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1618 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1619 | // 3a. Convert rax to a string. |
| 1620 | __ bind(&to_string); |
| 1621 | { |
| 1622 | ToStringStub stub(masm->isolate()); |
| 1623 | __ TailCallStub(&stub); |
| 1624 | } |
| 1625 | |
| 1626 | // 3b. Convert symbol in rax to a string. |
| 1627 | __ bind(&symbol_descriptive_string); |
| 1628 | { |
| 1629 | __ PopReturnAddressTo(rcx); |
| 1630 | __ Push(rax); |
| 1631 | __ PushReturnAddressFrom(rcx); |
| 1632 | __ TailCallRuntime(Runtime::kSymbolDescriptiveString); |
| 1633 | } |
| 1634 | } |
| 1635 | |
| 1636 | |
| 1637 | // static |
| 1638 | void Builtins::Generate_StringConstructor_ConstructStub(MacroAssembler* masm) { |
| 1639 | // ----------- S t a t e ------------- |
| 1640 | // -- rax : number of arguments |
| 1641 | // -- rdi : constructor function |
| 1642 | // -- rdx : new target |
| 1643 | // -- rsp[0] : return address |
| 1644 | // -- rsp[(argc - n) * 8] : arg[n] (zero-based) |
| 1645 | // -- rsp[(argc + 1) * 8] : receiver |
| 1646 | // ----------------------------------- |
| 1647 | |
| 1648 | // 1. Make sure we operate in the context of the called function. |
| 1649 | __ movp(rsi, FieldOperand(rdi, JSFunction::kContextOffset)); |
| 1650 | |
| 1651 | // 2. Load the first argument into rbx and get rid of the rest (including the |
| 1652 | // receiver). |
| 1653 | { |
| 1654 | StackArgumentsAccessor args(rsp, rax); |
| 1655 | Label no_arguments, done; |
| 1656 | __ testp(rax, rax); |
| 1657 | __ j(zero, &no_arguments, Label::kNear); |
| 1658 | __ movp(rbx, args.GetArgumentOperand(1)); |
| 1659 | __ jmp(&done, Label::kNear); |
| 1660 | __ bind(&no_arguments); |
| 1661 | __ LoadRoot(rbx, Heap::kempty_stringRootIndex); |
| 1662 | __ bind(&done); |
| 1663 | __ PopReturnAddressTo(rcx); |
| 1664 | __ leap(rsp, Operand(rsp, rax, times_pointer_size, kPointerSize)); |
| 1665 | __ PushReturnAddressFrom(rcx); |
| 1666 | } |
| 1667 | |
| 1668 | // 3. Make sure rbx is a string. |
| 1669 | { |
| 1670 | Label convert, done_convert; |
| 1671 | __ JumpIfSmi(rbx, &convert, Label::kNear); |
| 1672 | __ CmpObjectType(rbx, FIRST_NONSTRING_TYPE, rcx); |
| 1673 | __ j(below, &done_convert); |
| 1674 | __ bind(&convert); |
| 1675 | { |
| 1676 | FrameScope scope(masm, StackFrame::INTERNAL); |
| 1677 | ToStringStub stub(masm->isolate()); |
| 1678 | __ Push(rdx); |
| 1679 | __ Push(rdi); |
| 1680 | __ Move(rax, rbx); |
| 1681 | __ CallStub(&stub); |
| 1682 | __ Move(rbx, rax); |
| 1683 | __ Pop(rdi); |
| 1684 | __ Pop(rdx); |
| 1685 | } |
| 1686 | __ bind(&done_convert); |
| 1687 | } |
| 1688 | |
| 1689 | // 4. Check if new target and constructor differ. |
| 1690 | Label new_object; |
| 1691 | __ cmpp(rdx, rdi); |
| 1692 | __ j(not_equal, &new_object); |
| 1693 | |
| 1694 | // 5. Allocate a JSValue wrapper for the string. |
| 1695 | __ AllocateJSValue(rax, rdi, rbx, rcx, &new_object); |
| 1696 | __ Ret(); |
| 1697 | |
| 1698 | // 6. Fallback to the runtime to create new object. |
| 1699 | __ bind(&new_object); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1700 | { |
| 1701 | FrameScope scope(masm, StackFrame::INTERNAL); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1702 | __ Push(rbx); // the first argument |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame^] | 1703 | FastNewObjectStub stub(masm->isolate()); |
| 1704 | __ CallStub(&stub); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1705 | __ Pop(FieldOperand(rax, JSValue::kValueOffset)); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1706 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1707 | __ Ret(); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1708 | } |
| 1709 | |
| 1710 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1711 | static void ArgumentsAdaptorStackCheck(MacroAssembler* masm, |
| 1712 | Label* stack_overflow) { |
| 1713 | // ----------- S t a t e ------------- |
| 1714 | // -- rax : actual number of arguments |
| 1715 | // -- rbx : expected number of arguments |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1716 | // -- rdx : new target (passed through to callee) |
| 1717 | // -- rdi : function (passed through to callee) |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1718 | // ----------------------------------- |
| 1719 | // Check the stack for overflow. We are not trying to catch |
| 1720 | // interruptions (e.g. debug break and preemption) here, so the "real stack |
| 1721 | // limit" is checked. |
| 1722 | Label okay; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1723 | __ LoadRoot(r8, Heap::kRealStackLimitRootIndex); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1724 | __ movp(rcx, rsp); |
| 1725 | // Make rcx the space we have left. The stack might already be overflowed |
| 1726 | // here which will cause rcx to become negative. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1727 | __ subp(rcx, r8); |
| 1728 | // Make r8 the space we need for the array when it is unrolled onto the |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1729 | // stack. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1730 | __ movp(r8, rbx); |
| 1731 | __ shlp(r8, Immediate(kPointerSizeLog2)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1732 | // Check if the arguments will overflow the stack. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1733 | __ cmpp(rcx, r8); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1734 | __ j(less_equal, stack_overflow); // Signed comparison. |
| 1735 | } |
| 1736 | |
| 1737 | |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1738 | static void EnterArgumentsAdaptorFrame(MacroAssembler* masm) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1739 | __ pushq(rbp); |
| 1740 | __ movp(rbp, rsp); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1741 | |
| 1742 | // Store the arguments adaptor context sentinel. |
| 1743 | __ Push(Smi::FromInt(StackFrame::ARGUMENTS_ADAPTOR)); |
| 1744 | |
| 1745 | // Push the function on the stack. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1746 | __ Push(rdi); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1747 | |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 1748 | // Preserve the number of arguments on the stack. Must preserve rax, |
| 1749 | // rbx and rcx because these registers are used when copying the |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1750 | // arguments and the receiver. |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 1751 | __ Integer32ToSmi(r8, rax); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1752 | __ Push(r8); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1753 | } |
| 1754 | |
| 1755 | |
| 1756 | static void LeaveArgumentsAdaptorFrame(MacroAssembler* masm) { |
| 1757 | // Retrieve the number of arguments from the stack. Number is a Smi. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1758 | __ movp(rbx, Operand(rbp, ArgumentsAdaptorFrameConstants::kLengthOffset)); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1759 | |
| 1760 | // Leave the frame. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1761 | __ movp(rsp, rbp); |
| 1762 | __ popq(rbp); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1763 | |
| 1764 | // Remove caller arguments from the stack. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1765 | __ PopReturnAddressTo(rcx); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1766 | SmiIndex index = masm->SmiToIndex(rbx, rbx, kPointerSizeLog2); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1767 | __ leap(rsp, Operand(rsp, index.reg, index.scale, 1 * kPointerSize)); |
| 1768 | __ PushReturnAddressFrom(rcx); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1769 | } |
| 1770 | |
| 1771 | |
| 1772 | void Builtins::Generate_ArgumentsAdaptorTrampoline(MacroAssembler* masm) { |
| 1773 | // ----------- S t a t e ------------- |
| 1774 | // -- rax : actual number of arguments |
| 1775 | // -- rbx : expected number of arguments |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1776 | // -- rdx : new target (passed through to callee) |
| 1777 | // -- rdi : function (passed through to callee) |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1778 | // ----------------------------------- |
| 1779 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1780 | Label invoke, dont_adapt_arguments, stack_overflow; |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 1781 | Counters* counters = masm->isolate()->counters(); |
| 1782 | __ IncrementCounter(counters->arguments_adaptors(), 1); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1783 | |
| 1784 | Label enough, too_few; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1785 | __ cmpp(rax, rbx); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1786 | __ j(less, &too_few); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1787 | __ cmpp(rbx, Immediate(SharedFunctionInfo::kDontAdaptArgumentsSentinel)); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1788 | __ j(equal, &dont_adapt_arguments); |
| 1789 | |
| 1790 | { // Enough parameters: Actual >= expected. |
| 1791 | __ bind(&enough); |
| 1792 | EnterArgumentsAdaptorFrame(masm); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1793 | ArgumentsAdaptorStackCheck(masm, &stack_overflow); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1794 | |
| 1795 | // Copy receiver and all expected arguments. |
| 1796 | const int offset = StandardFrameConstants::kCallerSPOffset; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1797 | __ leap(rax, Operand(rbp, rax, times_pointer_size, offset)); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 1798 | __ Set(r8, -1); // account for receiver |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1799 | |
| 1800 | Label copy; |
| 1801 | __ bind(©); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1802 | __ incp(r8); |
| 1803 | __ Push(Operand(rax, 0)); |
| 1804 | __ subp(rax, Immediate(kPointerSize)); |
| 1805 | __ cmpp(r8, rbx); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1806 | __ j(less, ©); |
| 1807 | __ jmp(&invoke); |
| 1808 | } |
| 1809 | |
| 1810 | { // Too few parameters: Actual < expected. |
| 1811 | __ bind(&too_few); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1812 | |
| 1813 | // If the function is strong we need to throw an error. |
| 1814 | Label no_strong_error; |
| 1815 | __ movp(kScratchRegister, |
| 1816 | FieldOperand(rdi, JSFunction::kSharedFunctionInfoOffset)); |
| 1817 | __ testb(FieldOperand(kScratchRegister, |
| 1818 | SharedFunctionInfo::kStrongModeByteOffset), |
| 1819 | Immediate(1 << SharedFunctionInfo::kStrongModeBitWithinByte)); |
| 1820 | __ j(equal, &no_strong_error, Label::kNear); |
| 1821 | |
| 1822 | // What we really care about is the required number of arguments. |
| 1823 | |
| 1824 | if (kPointerSize == kInt32Size) { |
| 1825 | __ movp( |
| 1826 | kScratchRegister, |
| 1827 | FieldOperand(kScratchRegister, SharedFunctionInfo::kLengthOffset)); |
| 1828 | __ SmiToInteger32(kScratchRegister, kScratchRegister); |
| 1829 | } else { |
| 1830 | // See comment near kLengthOffset in src/objects.h |
| 1831 | __ movsxlq( |
| 1832 | kScratchRegister, |
| 1833 | FieldOperand(kScratchRegister, SharedFunctionInfo::kLengthOffset)); |
| 1834 | __ shrq(kScratchRegister, Immediate(1)); |
| 1835 | } |
| 1836 | |
| 1837 | __ cmpp(rax, kScratchRegister); |
| 1838 | __ j(greater_equal, &no_strong_error, Label::kNear); |
| 1839 | |
| 1840 | { |
| 1841 | FrameScope frame(masm, StackFrame::MANUAL); |
| 1842 | EnterArgumentsAdaptorFrame(masm); |
| 1843 | __ CallRuntime(Runtime::kThrowStrongModeTooFewArguments); |
| 1844 | } |
| 1845 | |
| 1846 | __ bind(&no_strong_error); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1847 | EnterArgumentsAdaptorFrame(masm); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1848 | ArgumentsAdaptorStackCheck(masm, &stack_overflow); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1849 | |
| 1850 | // Copy receiver and all actual arguments. |
| 1851 | const int offset = StandardFrameConstants::kCallerSPOffset; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1852 | __ leap(rdi, Operand(rbp, rax, times_pointer_size, offset)); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 1853 | __ Set(r8, -1); // account for receiver |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1854 | |
| 1855 | Label copy; |
| 1856 | __ bind(©); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1857 | __ incp(r8); |
| 1858 | __ Push(Operand(rdi, 0)); |
| 1859 | __ subp(rdi, Immediate(kPointerSize)); |
| 1860 | __ cmpp(r8, rax); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1861 | __ j(less, ©); |
| 1862 | |
| 1863 | // Fill remaining expected arguments with undefined values. |
| 1864 | Label fill; |
| 1865 | __ LoadRoot(kScratchRegister, Heap::kUndefinedValueRootIndex); |
| 1866 | __ bind(&fill); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1867 | __ incp(r8); |
| 1868 | __ Push(kScratchRegister); |
| 1869 | __ cmpp(r8, rbx); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1870 | __ j(less, &fill); |
| 1871 | |
| 1872 | // Restore function pointer. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1873 | __ movp(rdi, Operand(rbp, JavaScriptFrameConstants::kFunctionOffset)); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1874 | } |
| 1875 | |
| 1876 | // Call the entry point. |
| 1877 | __ bind(&invoke); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1878 | __ movp(rax, rbx); |
| 1879 | // rax : expected number of arguments |
| 1880 | // rdx : new target (passed through to callee) |
| 1881 | // rdi : function (passed through to callee) |
| 1882 | __ movp(rcx, FieldOperand(rdi, JSFunction::kCodeEntryOffset)); |
| 1883 | __ call(rcx); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1884 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1885 | // Store offset of return address for deoptimizer. |
| 1886 | masm->isolate()->heap()->SetArgumentsAdaptorDeoptPCOffset(masm->pc_offset()); |
| 1887 | |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1888 | // Leave frame and return. |
| 1889 | LeaveArgumentsAdaptorFrame(masm); |
| 1890 | __ ret(0); |
| 1891 | |
| 1892 | // ------------------------------------------- |
| 1893 | // Dont adapt arguments. |
| 1894 | // ------------------------------------------- |
| 1895 | __ bind(&dont_adapt_arguments); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1896 | __ movp(rcx, FieldOperand(rdi, JSFunction::kCodeEntryOffset)); |
| 1897 | __ jmp(rcx); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1898 | |
| 1899 | __ bind(&stack_overflow); |
| 1900 | { |
| 1901 | FrameScope frame(masm, StackFrame::MANUAL); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1902 | __ CallRuntime(Runtime::kThrowStackOverflow); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1903 | __ int3(); |
| 1904 | } |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1905 | } |
| 1906 | |
| 1907 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1908 | // static |
| 1909 | void Builtins::Generate_Apply(MacroAssembler* masm) { |
| 1910 | // ----------- S t a t e ------------- |
| 1911 | // -- rax : argumentsList |
| 1912 | // -- rdi : target |
| 1913 | // -- rdx : new.target (checked to be constructor or undefined) |
| 1914 | // -- rsp[0] : return address. |
| 1915 | // -- rsp[8] : thisArgument |
| 1916 | // ----------------------------------- |
| 1917 | |
| 1918 | // Create the list of arguments from the array-like argumentsList. |
| 1919 | { |
| 1920 | Label create_arguments, create_array, create_runtime, done_create; |
| 1921 | __ JumpIfSmi(rax, &create_runtime); |
| 1922 | |
| 1923 | // Load the map of argumentsList into rcx. |
| 1924 | __ movp(rcx, FieldOperand(rax, HeapObject::kMapOffset)); |
| 1925 | |
| 1926 | // Load native context into rbx. |
| 1927 | __ movp(rbx, NativeContextOperand()); |
| 1928 | |
| 1929 | // Check if argumentsList is an (unmodified) arguments object. |
| 1930 | __ cmpp(rcx, ContextOperand(rbx, Context::SLOPPY_ARGUMENTS_MAP_INDEX)); |
| 1931 | __ j(equal, &create_arguments); |
| 1932 | __ cmpp(rcx, ContextOperand(rbx, Context::STRICT_ARGUMENTS_MAP_INDEX)); |
| 1933 | __ j(equal, &create_arguments); |
| 1934 | |
| 1935 | // Check if argumentsList is a fast JSArray. |
| 1936 | __ CmpInstanceType(rcx, JS_ARRAY_TYPE); |
| 1937 | __ j(equal, &create_array); |
| 1938 | |
| 1939 | // Ask the runtime to create the list (actually a FixedArray). |
| 1940 | __ bind(&create_runtime); |
| 1941 | { |
| 1942 | FrameScope scope(masm, StackFrame::INTERNAL); |
| 1943 | __ Push(rdi); |
| 1944 | __ Push(rdx); |
| 1945 | __ Push(rax); |
| 1946 | __ CallRuntime(Runtime::kCreateListFromArrayLike); |
| 1947 | __ Pop(rdx); |
| 1948 | __ Pop(rdi); |
| 1949 | __ SmiToInteger32(rbx, FieldOperand(rax, FixedArray::kLengthOffset)); |
| 1950 | } |
| 1951 | __ jmp(&done_create); |
| 1952 | |
| 1953 | // Try to create the list from an arguments object. |
| 1954 | __ bind(&create_arguments); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame^] | 1955 | __ movp(rbx, FieldOperand(rax, JSArgumentsObject::kLengthOffset)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1956 | __ movp(rcx, FieldOperand(rax, JSObject::kElementsOffset)); |
| 1957 | __ cmpp(rbx, FieldOperand(rcx, FixedArray::kLengthOffset)); |
| 1958 | __ j(not_equal, &create_runtime); |
| 1959 | __ SmiToInteger32(rbx, rbx); |
| 1960 | __ movp(rax, rcx); |
| 1961 | __ jmp(&done_create); |
| 1962 | |
| 1963 | // Try to create the list from a JSArray object. |
| 1964 | __ bind(&create_array); |
| 1965 | __ movzxbp(rcx, FieldOperand(rcx, Map::kBitField2Offset)); |
| 1966 | __ DecodeField<Map::ElementsKindBits>(rcx); |
| 1967 | STATIC_ASSERT(FAST_SMI_ELEMENTS == 0); |
| 1968 | STATIC_ASSERT(FAST_HOLEY_SMI_ELEMENTS == 1); |
| 1969 | STATIC_ASSERT(FAST_ELEMENTS == 2); |
| 1970 | __ cmpl(rcx, Immediate(FAST_ELEMENTS)); |
| 1971 | __ j(above, &create_runtime); |
| 1972 | __ cmpl(rcx, Immediate(FAST_HOLEY_SMI_ELEMENTS)); |
| 1973 | __ j(equal, &create_runtime); |
| 1974 | __ SmiToInteger32(rbx, FieldOperand(rax, JSArray::kLengthOffset)); |
| 1975 | __ movp(rax, FieldOperand(rax, JSArray::kElementsOffset)); |
| 1976 | |
| 1977 | __ bind(&done_create); |
| 1978 | } |
| 1979 | |
| 1980 | // Check for stack overflow. |
| 1981 | { |
| 1982 | // Check the stack for overflow. We are not trying to catch interruptions |
| 1983 | // (i.e. debug break and preemption) here, so check the "real stack limit". |
| 1984 | Label done; |
| 1985 | __ LoadRoot(kScratchRegister, Heap::kRealStackLimitRootIndex); |
| 1986 | __ movp(rcx, rsp); |
| 1987 | // Make rcx the space we have left. The stack might already be overflowed |
| 1988 | // here which will cause rcx to become negative. |
| 1989 | __ subp(rcx, kScratchRegister); |
| 1990 | __ sarp(rcx, Immediate(kPointerSizeLog2)); |
| 1991 | // Check if the arguments will overflow the stack. |
| 1992 | __ cmpp(rcx, rbx); |
| 1993 | __ j(greater, &done, Label::kNear); // Signed comparison. |
| 1994 | __ TailCallRuntime(Runtime::kThrowStackOverflow); |
| 1995 | __ bind(&done); |
| 1996 | } |
| 1997 | |
| 1998 | // ----------- S t a t e ------------- |
| 1999 | // -- rdi : target |
| 2000 | // -- rax : args (a FixedArray built from argumentsList) |
| 2001 | // -- rbx : len (number of elements to push from args) |
| 2002 | // -- rdx : new.target (checked to be constructor or undefined) |
| 2003 | // -- rsp[0] : return address. |
| 2004 | // -- rsp[8] : thisArgument |
| 2005 | // ----------------------------------- |
| 2006 | |
| 2007 | // Push arguments onto the stack (thisArgument is already on the stack). |
| 2008 | { |
| 2009 | __ PopReturnAddressTo(r8); |
| 2010 | __ Set(rcx, 0); |
| 2011 | Label done, loop; |
| 2012 | __ bind(&loop); |
| 2013 | __ cmpl(rcx, rbx); |
| 2014 | __ j(equal, &done, Label::kNear); |
| 2015 | __ Push( |
| 2016 | FieldOperand(rax, rcx, times_pointer_size, FixedArray::kHeaderSize)); |
| 2017 | __ incl(rcx); |
| 2018 | __ jmp(&loop); |
| 2019 | __ bind(&done); |
| 2020 | __ PushReturnAddressFrom(r8); |
| 2021 | __ Move(rax, rcx); |
| 2022 | } |
| 2023 | |
| 2024 | // Dispatch to Call or Construct depending on whether new.target is undefined. |
| 2025 | { |
| 2026 | __ CompareRoot(rdx, Heap::kUndefinedValueRootIndex); |
| 2027 | __ j(equal, masm->isolate()->builtins()->Call(), RelocInfo::CODE_TARGET); |
| 2028 | __ Jump(masm->isolate()->builtins()->Construct(), RelocInfo::CODE_TARGET); |
| 2029 | } |
| 2030 | } |
| 2031 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame^] | 2032 | namespace { |
| 2033 | |
| 2034 | // Drops top JavaScript frame and an arguments adaptor frame below it (if |
| 2035 | // present) preserving all the arguments prepared for current call. |
| 2036 | // Does nothing if debugger is currently active. |
| 2037 | // ES6 14.6.3. PrepareForTailCall |
| 2038 | // |
| 2039 | // Stack structure for the function g() tail calling f(): |
| 2040 | // |
| 2041 | // ------- Caller frame: ------- |
| 2042 | // | ... |
| 2043 | // | g()'s arg M |
| 2044 | // | ... |
| 2045 | // | g()'s arg 1 |
| 2046 | // | g()'s receiver arg |
| 2047 | // | g()'s caller pc |
| 2048 | // ------- g()'s frame: ------- |
| 2049 | // | g()'s caller fp <- fp |
| 2050 | // | g()'s context |
| 2051 | // | function pointer: g |
| 2052 | // | ------------------------- |
| 2053 | // | ... |
| 2054 | // | ... |
| 2055 | // | f()'s arg N |
| 2056 | // | ... |
| 2057 | // | f()'s arg 1 |
| 2058 | // | f()'s receiver arg |
| 2059 | // | f()'s caller pc <- sp |
| 2060 | // ---------------------- |
| 2061 | // |
| 2062 | void PrepareForTailCall(MacroAssembler* masm, Register args_reg, |
| 2063 | Register scratch1, Register scratch2, |
| 2064 | Register scratch3) { |
| 2065 | DCHECK(!AreAliased(args_reg, scratch1, scratch2, scratch3)); |
| 2066 | Comment cmnt(masm, "[ PrepareForTailCall"); |
| 2067 | |
| 2068 | // Prepare for tail call only if the debugger is not active. |
| 2069 | Label done; |
| 2070 | ExternalReference debug_is_active = |
| 2071 | ExternalReference::debug_is_active_address(masm->isolate()); |
| 2072 | __ Move(kScratchRegister, debug_is_active); |
| 2073 | __ cmpb(Operand(kScratchRegister, 0), Immediate(0)); |
| 2074 | __ j(not_equal, &done); |
| 2075 | |
| 2076 | // Drop possible interpreter handler/stub frame. |
| 2077 | { |
| 2078 | Label no_interpreter_frame; |
| 2079 | __ Cmp(Operand(rbp, StandardFrameConstants::kMarkerOffset), |
| 2080 | Smi::FromInt(StackFrame::STUB)); |
| 2081 | __ j(not_equal, &no_interpreter_frame, Label::kNear); |
| 2082 | __ movp(rbp, Operand(rbp, StandardFrameConstants::kCallerFPOffset)); |
| 2083 | __ bind(&no_interpreter_frame); |
| 2084 | } |
| 2085 | |
| 2086 | // Check if next frame is an arguments adaptor frame. |
| 2087 | Label no_arguments_adaptor, formal_parameter_count_loaded; |
| 2088 | __ movp(scratch2, Operand(rbp, StandardFrameConstants::kCallerFPOffset)); |
| 2089 | __ Cmp(Operand(scratch2, StandardFrameConstants::kContextOffset), |
| 2090 | Smi::FromInt(StackFrame::ARGUMENTS_ADAPTOR)); |
| 2091 | __ j(not_equal, &no_arguments_adaptor, Label::kNear); |
| 2092 | |
| 2093 | // Drop arguments adaptor frame and load arguments count. |
| 2094 | __ movp(rbp, scratch2); |
| 2095 | __ SmiToInteger32( |
| 2096 | scratch1, Operand(rbp, ArgumentsAdaptorFrameConstants::kLengthOffset)); |
| 2097 | __ jmp(&formal_parameter_count_loaded, Label::kNear); |
| 2098 | |
| 2099 | __ bind(&no_arguments_adaptor); |
| 2100 | // Load caller's formal parameter count |
| 2101 | __ movp(scratch1, Operand(rbp, JavaScriptFrameConstants::kFunctionOffset)); |
| 2102 | __ movp(scratch1, |
| 2103 | FieldOperand(scratch1, JSFunction::kSharedFunctionInfoOffset)); |
| 2104 | __ LoadSharedFunctionInfoSpecialField( |
| 2105 | scratch1, scratch1, SharedFunctionInfo::kFormalParameterCountOffset); |
| 2106 | |
| 2107 | __ bind(&formal_parameter_count_loaded); |
| 2108 | |
| 2109 | // Calculate the destination address where we will put the return address |
| 2110 | // after we drop current frame. |
| 2111 | Register new_sp_reg = scratch2; |
| 2112 | __ subp(scratch1, args_reg); |
| 2113 | __ leap(new_sp_reg, Operand(rbp, scratch1, times_pointer_size, |
| 2114 | StandardFrameConstants::kCallerPCOffset)); |
| 2115 | |
| 2116 | if (FLAG_debug_code) { |
| 2117 | __ cmpp(rsp, new_sp_reg); |
| 2118 | __ Check(below, kStackAccessBelowStackPointer); |
| 2119 | } |
| 2120 | |
| 2121 | // Copy receiver and return address as well. |
| 2122 | Register count_reg = scratch1; |
| 2123 | __ leap(count_reg, Operand(args_reg, 2)); |
| 2124 | |
| 2125 | // Copy return address from caller's frame to current frame's return address |
| 2126 | // to avoid its trashing and let the following loop copy it to the right |
| 2127 | // place. |
| 2128 | Register tmp_reg = scratch3; |
| 2129 | __ movp(tmp_reg, Operand(rbp, StandardFrameConstants::kCallerPCOffset)); |
| 2130 | __ movp(Operand(rsp, 0), tmp_reg); |
| 2131 | |
| 2132 | // Restore caller's frame pointer now as it could be overwritten by |
| 2133 | // the copying loop. |
| 2134 | __ movp(rbp, Operand(rbp, StandardFrameConstants::kCallerFPOffset)); |
| 2135 | |
| 2136 | Operand src(rsp, count_reg, times_pointer_size, 0); |
| 2137 | Operand dst(new_sp_reg, count_reg, times_pointer_size, 0); |
| 2138 | |
| 2139 | // Now copy callee arguments to the caller frame going backwards to avoid |
| 2140 | // callee arguments corruption (source and destination areas could overlap). |
| 2141 | Label loop, entry; |
| 2142 | __ jmp(&entry, Label::kNear); |
| 2143 | __ bind(&loop); |
| 2144 | __ decp(count_reg); |
| 2145 | __ movp(tmp_reg, src); |
| 2146 | __ movp(dst, tmp_reg); |
| 2147 | __ bind(&entry); |
| 2148 | __ cmpp(count_reg, Immediate(0)); |
| 2149 | __ j(not_equal, &loop, Label::kNear); |
| 2150 | |
| 2151 | // Leave current frame. |
| 2152 | __ movp(rsp, new_sp_reg); |
| 2153 | |
| 2154 | __ bind(&done); |
| 2155 | } |
| 2156 | } // namespace |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2157 | |
| 2158 | // static |
| 2159 | void Builtins::Generate_CallFunction(MacroAssembler* masm, |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame^] | 2160 | ConvertReceiverMode mode, |
| 2161 | TailCallMode tail_call_mode) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2162 | // ----------- S t a t e ------------- |
| 2163 | // -- rax : the number of arguments (not including the receiver) |
| 2164 | // -- rdi : the function to call (checked to be a JSFunction) |
| 2165 | // ----------------------------------- |
| 2166 | StackArgumentsAccessor args(rsp, rax); |
| 2167 | __ AssertFunction(rdi); |
| 2168 | |
| 2169 | // ES6 section 9.2.1 [[Call]] ( thisArgument, argumentsList) |
| 2170 | // Check that the function is not a "classConstructor". |
| 2171 | Label class_constructor; |
| 2172 | __ movp(rdx, FieldOperand(rdi, JSFunction::kSharedFunctionInfoOffset)); |
| 2173 | __ testb(FieldOperand(rdx, SharedFunctionInfo::kFunctionKindByteOffset), |
| 2174 | Immediate(SharedFunctionInfo::kClassConstructorBitsWithinByte)); |
| 2175 | __ j(not_zero, &class_constructor); |
| 2176 | |
| 2177 | // ----------- S t a t e ------------- |
| 2178 | // -- rax : the number of arguments (not including the receiver) |
| 2179 | // -- rdx : the shared function info. |
| 2180 | // -- rdi : the function to call (checked to be a JSFunction) |
| 2181 | // ----------------------------------- |
| 2182 | |
| 2183 | // Enter the context of the function; ToObject has to run in the function |
| 2184 | // context, and we also need to take the global proxy from the function |
| 2185 | // context in case of conversion. |
| 2186 | STATIC_ASSERT(SharedFunctionInfo::kNativeByteOffset == |
| 2187 | SharedFunctionInfo::kStrictModeByteOffset); |
| 2188 | __ movp(rsi, FieldOperand(rdi, JSFunction::kContextOffset)); |
| 2189 | // We need to convert the receiver for non-native sloppy mode functions. |
| 2190 | Label done_convert; |
| 2191 | __ testb(FieldOperand(rdx, SharedFunctionInfo::kNativeByteOffset), |
| 2192 | Immediate((1 << SharedFunctionInfo::kNativeBitWithinByte) | |
| 2193 | (1 << SharedFunctionInfo::kStrictModeBitWithinByte))); |
| 2194 | __ j(not_zero, &done_convert); |
| 2195 | { |
| 2196 | // ----------- S t a t e ------------- |
| 2197 | // -- rax : the number of arguments (not including the receiver) |
| 2198 | // -- rdx : the shared function info. |
| 2199 | // -- rdi : the function to call (checked to be a JSFunction) |
| 2200 | // -- rsi : the function context. |
| 2201 | // ----------------------------------- |
| 2202 | |
| 2203 | if (mode == ConvertReceiverMode::kNullOrUndefined) { |
| 2204 | // Patch receiver to global proxy. |
| 2205 | __ LoadGlobalProxy(rcx); |
| 2206 | } else { |
| 2207 | Label convert_to_object, convert_receiver; |
| 2208 | __ movp(rcx, args.GetReceiverOperand()); |
| 2209 | __ JumpIfSmi(rcx, &convert_to_object, Label::kNear); |
| 2210 | STATIC_ASSERT(LAST_JS_RECEIVER_TYPE == LAST_TYPE); |
| 2211 | __ CmpObjectType(rcx, FIRST_JS_RECEIVER_TYPE, rbx); |
| 2212 | __ j(above_equal, &done_convert); |
| 2213 | if (mode != ConvertReceiverMode::kNotNullOrUndefined) { |
| 2214 | Label convert_global_proxy; |
| 2215 | __ JumpIfRoot(rcx, Heap::kUndefinedValueRootIndex, |
| 2216 | &convert_global_proxy, Label::kNear); |
| 2217 | __ JumpIfNotRoot(rcx, Heap::kNullValueRootIndex, &convert_to_object, |
| 2218 | Label::kNear); |
| 2219 | __ bind(&convert_global_proxy); |
| 2220 | { |
| 2221 | // Patch receiver to global proxy. |
| 2222 | __ LoadGlobalProxy(rcx); |
| 2223 | } |
| 2224 | __ jmp(&convert_receiver); |
| 2225 | } |
| 2226 | __ bind(&convert_to_object); |
| 2227 | { |
| 2228 | // Convert receiver using ToObject. |
| 2229 | // TODO(bmeurer): Inline the allocation here to avoid building the frame |
| 2230 | // in the fast case? (fall back to AllocateInNewSpace?) |
| 2231 | FrameScope scope(masm, StackFrame::INTERNAL); |
| 2232 | __ Integer32ToSmi(rax, rax); |
| 2233 | __ Push(rax); |
| 2234 | __ Push(rdi); |
| 2235 | __ movp(rax, rcx); |
| 2236 | ToObjectStub stub(masm->isolate()); |
| 2237 | __ CallStub(&stub); |
| 2238 | __ movp(rcx, rax); |
| 2239 | __ Pop(rdi); |
| 2240 | __ Pop(rax); |
| 2241 | __ SmiToInteger32(rax, rax); |
| 2242 | } |
| 2243 | __ movp(rdx, FieldOperand(rdi, JSFunction::kSharedFunctionInfoOffset)); |
| 2244 | __ bind(&convert_receiver); |
| 2245 | } |
| 2246 | __ movp(args.GetReceiverOperand(), rcx); |
| 2247 | } |
| 2248 | __ bind(&done_convert); |
| 2249 | |
| 2250 | // ----------- S t a t e ------------- |
| 2251 | // -- rax : the number of arguments (not including the receiver) |
| 2252 | // -- rdx : the shared function info. |
| 2253 | // -- rdi : the function to call (checked to be a JSFunction) |
| 2254 | // -- rsi : the function context. |
| 2255 | // ----------------------------------- |
| 2256 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame^] | 2257 | if (tail_call_mode == TailCallMode::kAllow) { |
| 2258 | PrepareForTailCall(masm, rax, rbx, rcx, r8); |
| 2259 | } |
| 2260 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2261 | __ LoadSharedFunctionInfoSpecialField( |
| 2262 | rbx, rdx, SharedFunctionInfo::kFormalParameterCountOffset); |
| 2263 | ParameterCount actual(rax); |
| 2264 | ParameterCount expected(rbx); |
| 2265 | |
| 2266 | __ InvokeFunctionCode(rdi, no_reg, expected, actual, JUMP_FUNCTION, |
| 2267 | CheckDebugStepCallWrapper()); |
| 2268 | |
| 2269 | // The function is a "classConstructor", need to raise an exception. |
| 2270 | __ bind(&class_constructor); |
| 2271 | { |
| 2272 | FrameScope frame(masm, StackFrame::INTERNAL); |
| 2273 | __ Push(rdi); |
| 2274 | __ CallRuntime(Runtime::kThrowConstructorNonCallableError); |
| 2275 | } |
| 2276 | } |
| 2277 | |
| 2278 | |
| 2279 | namespace { |
| 2280 | |
| 2281 | void Generate_PushBoundArguments(MacroAssembler* masm) { |
| 2282 | // ----------- S t a t e ------------- |
| 2283 | // -- rax : the number of arguments (not including the receiver) |
| 2284 | // -- rdx : new.target (only in case of [[Construct]]) |
| 2285 | // -- rdi : target (checked to be a JSBoundFunction) |
| 2286 | // ----------------------------------- |
| 2287 | |
| 2288 | // Load [[BoundArguments]] into rcx and length of that into rbx. |
| 2289 | Label no_bound_arguments; |
| 2290 | __ movp(rcx, FieldOperand(rdi, JSBoundFunction::kBoundArgumentsOffset)); |
| 2291 | __ SmiToInteger32(rbx, FieldOperand(rcx, FixedArray::kLengthOffset)); |
| 2292 | __ testl(rbx, rbx); |
| 2293 | __ j(zero, &no_bound_arguments); |
| 2294 | { |
| 2295 | // ----------- S t a t e ------------- |
| 2296 | // -- rax : the number of arguments (not including the receiver) |
| 2297 | // -- rdx : new.target (only in case of [[Construct]]) |
| 2298 | // -- rdi : target (checked to be a JSBoundFunction) |
| 2299 | // -- rcx : the [[BoundArguments]] (implemented as FixedArray) |
| 2300 | // -- rbx : the number of [[BoundArguments]] (checked to be non-zero) |
| 2301 | // ----------------------------------- |
| 2302 | |
| 2303 | // Reserve stack space for the [[BoundArguments]]. |
| 2304 | { |
| 2305 | Label done; |
| 2306 | __ leap(kScratchRegister, Operand(rbx, times_pointer_size, 0)); |
| 2307 | __ subp(rsp, kScratchRegister); |
| 2308 | // Check the stack for overflow. We are not trying to catch interruptions |
| 2309 | // (i.e. debug break and preemption) here, so check the "real stack |
| 2310 | // limit". |
| 2311 | __ CompareRoot(rsp, Heap::kRealStackLimitRootIndex); |
| 2312 | __ j(greater, &done, Label::kNear); // Signed comparison. |
| 2313 | // Restore the stack pointer. |
| 2314 | __ leap(rsp, Operand(rsp, rbx, times_pointer_size, 0)); |
| 2315 | { |
| 2316 | FrameScope scope(masm, StackFrame::MANUAL); |
| 2317 | __ EnterFrame(StackFrame::INTERNAL); |
| 2318 | __ CallRuntime(Runtime::kThrowStackOverflow); |
| 2319 | } |
| 2320 | __ bind(&done); |
| 2321 | } |
| 2322 | |
| 2323 | // Adjust effective number of arguments to include return address. |
| 2324 | __ incl(rax); |
| 2325 | |
| 2326 | // Relocate arguments and return address down the stack. |
| 2327 | { |
| 2328 | Label loop; |
| 2329 | __ Set(rcx, 0); |
| 2330 | __ leap(rbx, Operand(rsp, rbx, times_pointer_size, 0)); |
| 2331 | __ bind(&loop); |
| 2332 | __ movp(kScratchRegister, Operand(rbx, rcx, times_pointer_size, 0)); |
| 2333 | __ movp(Operand(rsp, rcx, times_pointer_size, 0), kScratchRegister); |
| 2334 | __ incl(rcx); |
| 2335 | __ cmpl(rcx, rax); |
| 2336 | __ j(less, &loop); |
| 2337 | } |
| 2338 | |
| 2339 | // Copy [[BoundArguments]] to the stack (below the arguments). |
| 2340 | { |
| 2341 | Label loop; |
| 2342 | __ movp(rcx, FieldOperand(rdi, JSBoundFunction::kBoundArgumentsOffset)); |
| 2343 | __ SmiToInteger32(rbx, FieldOperand(rcx, FixedArray::kLengthOffset)); |
| 2344 | __ bind(&loop); |
| 2345 | __ decl(rbx); |
| 2346 | __ movp(kScratchRegister, FieldOperand(rcx, rbx, times_pointer_size, |
| 2347 | FixedArray::kHeaderSize)); |
| 2348 | __ movp(Operand(rsp, rax, times_pointer_size, 0), kScratchRegister); |
| 2349 | __ leal(rax, Operand(rax, 1)); |
| 2350 | __ j(greater, &loop); |
| 2351 | } |
| 2352 | |
| 2353 | // Adjust effective number of arguments (rax contains the number of |
| 2354 | // arguments from the call plus return address plus the number of |
| 2355 | // [[BoundArguments]]), so we need to subtract one for the return address. |
| 2356 | __ decl(rax); |
| 2357 | } |
| 2358 | __ bind(&no_bound_arguments); |
| 2359 | } |
| 2360 | |
| 2361 | } // namespace |
| 2362 | |
| 2363 | |
| 2364 | // static |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame^] | 2365 | void Builtins::Generate_CallBoundFunctionImpl(MacroAssembler* masm, |
| 2366 | TailCallMode tail_call_mode) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2367 | // ----------- S t a t e ------------- |
| 2368 | // -- rax : the number of arguments (not including the receiver) |
| 2369 | // -- rdi : the function to call (checked to be a JSBoundFunction) |
| 2370 | // ----------------------------------- |
| 2371 | __ AssertBoundFunction(rdi); |
| 2372 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame^] | 2373 | if (tail_call_mode == TailCallMode::kAllow) { |
| 2374 | PrepareForTailCall(masm, rax, rbx, rcx, r8); |
| 2375 | } |
| 2376 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2377 | // Patch the receiver to [[BoundThis]]. |
| 2378 | StackArgumentsAccessor args(rsp, rax); |
| 2379 | __ movp(rbx, FieldOperand(rdi, JSBoundFunction::kBoundThisOffset)); |
| 2380 | __ movp(args.GetReceiverOperand(), rbx); |
| 2381 | |
| 2382 | // Push the [[BoundArguments]] onto the stack. |
| 2383 | Generate_PushBoundArguments(masm); |
| 2384 | |
| 2385 | // Call the [[BoundTargetFunction]] via the Call builtin. |
| 2386 | __ movp(rdi, FieldOperand(rdi, JSBoundFunction::kBoundTargetFunctionOffset)); |
| 2387 | __ Load(rcx, |
| 2388 | ExternalReference(Builtins::kCall_ReceiverIsAny, masm->isolate())); |
| 2389 | __ leap(rcx, FieldOperand(rcx, Code::kHeaderSize)); |
| 2390 | __ jmp(rcx); |
| 2391 | } |
| 2392 | |
| 2393 | |
| 2394 | // static |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame^] | 2395 | void Builtins::Generate_Call(MacroAssembler* masm, ConvertReceiverMode mode, |
| 2396 | TailCallMode tail_call_mode) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2397 | // ----------- S t a t e ------------- |
| 2398 | // -- rax : the number of arguments (not including the receiver) |
| 2399 | // -- rdi : the target to call (can be any Object) |
| 2400 | // ----------------------------------- |
| 2401 | StackArgumentsAccessor args(rsp, rax); |
| 2402 | |
| 2403 | Label non_callable, non_function, non_smi; |
| 2404 | __ JumpIfSmi(rdi, &non_callable); |
| 2405 | __ bind(&non_smi); |
| 2406 | __ CmpObjectType(rdi, JS_FUNCTION_TYPE, rcx); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame^] | 2407 | __ j(equal, masm->isolate()->builtins()->CallFunction(mode, tail_call_mode), |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2408 | RelocInfo::CODE_TARGET); |
| 2409 | __ CmpInstanceType(rcx, JS_BOUND_FUNCTION_TYPE); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame^] | 2410 | __ j(equal, masm->isolate()->builtins()->CallBoundFunction(tail_call_mode), |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2411 | RelocInfo::CODE_TARGET); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame^] | 2412 | |
| 2413 | // Check if target has a [[Call]] internal method. |
| 2414 | __ testb(FieldOperand(rcx, Map::kBitFieldOffset), |
| 2415 | Immediate(1 << Map::kIsCallable)); |
| 2416 | __ j(zero, &non_callable); |
| 2417 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2418 | __ CmpInstanceType(rcx, JS_PROXY_TYPE); |
| 2419 | __ j(not_equal, &non_function); |
| 2420 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame^] | 2421 | // 0. Prepare for tail call if necessary. |
| 2422 | if (tail_call_mode == TailCallMode::kAllow) { |
| 2423 | PrepareForTailCall(masm, rax, rbx, rcx, r8); |
| 2424 | } |
| 2425 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2426 | // 1. Runtime fallback for Proxy [[Call]]. |
| 2427 | __ PopReturnAddressTo(kScratchRegister); |
| 2428 | __ Push(rdi); |
| 2429 | __ PushReturnAddressFrom(kScratchRegister); |
| 2430 | // Increase the arguments size to include the pushed function and the |
| 2431 | // existing receiver on the stack. |
| 2432 | __ addp(rax, Immediate(2)); |
| 2433 | // Tail-call to the runtime. |
| 2434 | __ JumpToExternalReference( |
| 2435 | ExternalReference(Runtime::kJSProxyCall, masm->isolate())); |
| 2436 | |
| 2437 | // 2. Call to something else, which might have a [[Call]] internal method (if |
| 2438 | // not we raise an exception). |
| 2439 | __ bind(&non_function); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2440 | // Overwrite the original receiver with the (original) target. |
| 2441 | __ movp(args.GetReceiverOperand(), rdi); |
| 2442 | // Let the "call_as_function_delegate" take care of the rest. |
| 2443 | __ LoadNativeContextSlot(Context::CALL_AS_FUNCTION_DELEGATE_INDEX, rdi); |
| 2444 | __ Jump(masm->isolate()->builtins()->CallFunction( |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame^] | 2445 | ConvertReceiverMode::kNotNullOrUndefined, tail_call_mode), |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2446 | RelocInfo::CODE_TARGET); |
| 2447 | |
| 2448 | // 3. Call to something that is not callable. |
| 2449 | __ bind(&non_callable); |
| 2450 | { |
| 2451 | FrameScope scope(masm, StackFrame::INTERNAL); |
| 2452 | __ Push(rdi); |
| 2453 | __ CallRuntime(Runtime::kThrowCalledNonCallable); |
| 2454 | } |
| 2455 | } |
| 2456 | |
| 2457 | |
| 2458 | // static |
| 2459 | void Builtins::Generate_ConstructFunction(MacroAssembler* masm) { |
| 2460 | // ----------- S t a t e ------------- |
| 2461 | // -- rax : the number of arguments (not including the receiver) |
| 2462 | // -- rdx : the new target (checked to be a constructor) |
| 2463 | // -- rdi : the constructor to call (checked to be a JSFunction) |
| 2464 | // ----------------------------------- |
| 2465 | __ AssertFunction(rdi); |
| 2466 | |
| 2467 | // Calling convention for function specific ConstructStubs require |
| 2468 | // rbx to contain either an AllocationSite or undefined. |
| 2469 | __ LoadRoot(rbx, Heap::kUndefinedValueRootIndex); |
| 2470 | |
| 2471 | // Tail call to the function-specific construct stub (still in the caller |
| 2472 | // context at this point). |
| 2473 | __ movp(rcx, FieldOperand(rdi, JSFunction::kSharedFunctionInfoOffset)); |
| 2474 | __ movp(rcx, FieldOperand(rcx, SharedFunctionInfo::kConstructStubOffset)); |
| 2475 | __ leap(rcx, FieldOperand(rcx, Code::kHeaderSize)); |
| 2476 | __ jmp(rcx); |
| 2477 | } |
| 2478 | |
| 2479 | |
| 2480 | // static |
| 2481 | void Builtins::Generate_ConstructBoundFunction(MacroAssembler* masm) { |
| 2482 | // ----------- S t a t e ------------- |
| 2483 | // -- rax : the number of arguments (not including the receiver) |
| 2484 | // -- rdx : the new target (checked to be a constructor) |
| 2485 | // -- rdi : the constructor to call (checked to be a JSBoundFunction) |
| 2486 | // ----------------------------------- |
| 2487 | __ AssertBoundFunction(rdi); |
| 2488 | |
| 2489 | // Push the [[BoundArguments]] onto the stack. |
| 2490 | Generate_PushBoundArguments(masm); |
| 2491 | |
| 2492 | // Patch new.target to [[BoundTargetFunction]] if new.target equals target. |
| 2493 | { |
| 2494 | Label done; |
| 2495 | __ cmpp(rdi, rdx); |
| 2496 | __ j(not_equal, &done, Label::kNear); |
| 2497 | __ movp(rdx, |
| 2498 | FieldOperand(rdi, JSBoundFunction::kBoundTargetFunctionOffset)); |
| 2499 | __ bind(&done); |
| 2500 | } |
| 2501 | |
| 2502 | // Construct the [[BoundTargetFunction]] via the Construct builtin. |
| 2503 | __ movp(rdi, FieldOperand(rdi, JSBoundFunction::kBoundTargetFunctionOffset)); |
| 2504 | __ Load(rcx, ExternalReference(Builtins::kConstruct, masm->isolate())); |
| 2505 | __ leap(rcx, FieldOperand(rcx, Code::kHeaderSize)); |
| 2506 | __ jmp(rcx); |
| 2507 | } |
| 2508 | |
| 2509 | |
| 2510 | // static |
| 2511 | void Builtins::Generate_ConstructProxy(MacroAssembler* masm) { |
| 2512 | // ----------- S t a t e ------------- |
| 2513 | // -- rax : the number of arguments (not including the receiver) |
| 2514 | // -- rdi : the constructor to call (checked to be a JSProxy) |
| 2515 | // -- rdx : the new target (either the same as the constructor or |
| 2516 | // the JSFunction on which new was invoked initially) |
| 2517 | // ----------------------------------- |
| 2518 | |
| 2519 | // Call into the Runtime for Proxy [[Construct]]. |
| 2520 | __ PopReturnAddressTo(kScratchRegister); |
| 2521 | __ Push(rdi); |
| 2522 | __ Push(rdx); |
| 2523 | __ PushReturnAddressFrom(kScratchRegister); |
| 2524 | // Include the pushed new_target, constructor and the receiver. |
| 2525 | __ addp(rax, Immediate(3)); |
| 2526 | __ JumpToExternalReference( |
| 2527 | ExternalReference(Runtime::kJSProxyConstruct, masm->isolate())); |
| 2528 | } |
| 2529 | |
| 2530 | |
| 2531 | // static |
| 2532 | void Builtins::Generate_Construct(MacroAssembler* masm) { |
| 2533 | // ----------- S t a t e ------------- |
| 2534 | // -- rax : the number of arguments (not including the receiver) |
| 2535 | // -- rdx : the new target (either the same as the constructor or |
| 2536 | // the JSFunction on which new was invoked initially) |
| 2537 | // -- rdi : the constructor to call (can be any Object) |
| 2538 | // ----------------------------------- |
| 2539 | StackArgumentsAccessor args(rsp, rax); |
| 2540 | |
| 2541 | // Check if target is a Smi. |
| 2542 | Label non_constructor; |
| 2543 | __ JumpIfSmi(rdi, &non_constructor, Label::kNear); |
| 2544 | |
| 2545 | // Dispatch based on instance type. |
| 2546 | __ CmpObjectType(rdi, JS_FUNCTION_TYPE, rcx); |
| 2547 | __ j(equal, masm->isolate()->builtins()->ConstructFunction(), |
| 2548 | RelocInfo::CODE_TARGET); |
| 2549 | |
| 2550 | // Check if target has a [[Construct]] internal method. |
| 2551 | __ testb(FieldOperand(rcx, Map::kBitFieldOffset), |
| 2552 | Immediate(1 << Map::kIsConstructor)); |
| 2553 | __ j(zero, &non_constructor, Label::kNear); |
| 2554 | |
| 2555 | // Only dispatch to bound functions after checking whether they are |
| 2556 | // constructors. |
| 2557 | __ CmpInstanceType(rcx, JS_BOUND_FUNCTION_TYPE); |
| 2558 | __ j(equal, masm->isolate()->builtins()->ConstructBoundFunction(), |
| 2559 | RelocInfo::CODE_TARGET); |
| 2560 | |
| 2561 | // Only dispatch to proxies after checking whether they are constructors. |
| 2562 | __ CmpInstanceType(rcx, JS_PROXY_TYPE); |
| 2563 | __ j(equal, masm->isolate()->builtins()->ConstructProxy(), |
| 2564 | RelocInfo::CODE_TARGET); |
| 2565 | |
| 2566 | // Called Construct on an exotic Object with a [[Construct]] internal method. |
| 2567 | { |
| 2568 | // Overwrite the original receiver with the (original) target. |
| 2569 | __ movp(args.GetReceiverOperand(), rdi); |
| 2570 | // Let the "call_as_constructor_delegate" take care of the rest. |
| 2571 | __ LoadNativeContextSlot(Context::CALL_AS_CONSTRUCTOR_DELEGATE_INDEX, rdi); |
| 2572 | __ Jump(masm->isolate()->builtins()->CallFunction(), |
| 2573 | RelocInfo::CODE_TARGET); |
| 2574 | } |
| 2575 | |
| 2576 | // Called Construct on an Object that doesn't have a [[Construct]] internal |
| 2577 | // method. |
| 2578 | __ bind(&non_constructor); |
| 2579 | __ Jump(masm->isolate()->builtins()->ConstructedNonConstructable(), |
| 2580 | RelocInfo::CODE_TARGET); |
| 2581 | } |
| 2582 | |
| 2583 | |
| 2584 | static void CompatibleReceiverCheck(MacroAssembler* masm, Register receiver, |
| 2585 | Register function_template_info, |
| 2586 | Register scratch0, Register scratch1, |
| 2587 | Register scratch2, |
| 2588 | Label* receiver_check_failed) { |
| 2589 | Register signature = scratch0; |
| 2590 | Register map = scratch1; |
| 2591 | Register constructor = scratch2; |
| 2592 | |
| 2593 | // If there is no signature, return the holder. |
| 2594 | __ movp(signature, FieldOperand(function_template_info, |
| 2595 | FunctionTemplateInfo::kSignatureOffset)); |
| 2596 | __ CompareRoot(signature, Heap::kUndefinedValueRootIndex); |
| 2597 | Label receiver_check_passed; |
| 2598 | __ j(equal, &receiver_check_passed, Label::kNear); |
| 2599 | |
| 2600 | // Walk the prototype chain. |
| 2601 | __ movp(map, FieldOperand(receiver, HeapObject::kMapOffset)); |
| 2602 | Label prototype_loop_start; |
| 2603 | __ bind(&prototype_loop_start); |
| 2604 | |
| 2605 | // Get the constructor, if any. |
| 2606 | __ GetMapConstructor(constructor, map, kScratchRegister); |
| 2607 | __ CmpInstanceType(kScratchRegister, JS_FUNCTION_TYPE); |
| 2608 | Label next_prototype; |
| 2609 | __ j(not_equal, &next_prototype, Label::kNear); |
| 2610 | |
| 2611 | // Get the constructor's signature. |
| 2612 | Register type = constructor; |
| 2613 | __ movp(type, |
| 2614 | FieldOperand(constructor, JSFunction::kSharedFunctionInfoOffset)); |
| 2615 | __ movp(type, FieldOperand(type, SharedFunctionInfo::kFunctionDataOffset)); |
| 2616 | |
| 2617 | // Loop through the chain of inheriting function templates. |
| 2618 | Label function_template_loop; |
| 2619 | __ bind(&function_template_loop); |
| 2620 | |
| 2621 | // If the signatures match, we have a compatible receiver. |
| 2622 | __ cmpp(signature, type); |
| 2623 | __ j(equal, &receiver_check_passed, Label::kNear); |
| 2624 | |
| 2625 | // If the current type is not a FunctionTemplateInfo, load the next prototype |
| 2626 | // in the chain. |
| 2627 | __ JumpIfSmi(type, &next_prototype, Label::kNear); |
| 2628 | __ CmpObjectType(type, FUNCTION_TEMPLATE_INFO_TYPE, kScratchRegister); |
| 2629 | __ j(not_equal, &next_prototype, Label::kNear); |
| 2630 | |
| 2631 | // Otherwise load the parent function template and iterate. |
| 2632 | __ movp(type, |
| 2633 | FieldOperand(type, FunctionTemplateInfo::kParentTemplateOffset)); |
| 2634 | __ jmp(&function_template_loop, Label::kNear); |
| 2635 | |
| 2636 | // Load the next prototype. |
| 2637 | __ bind(&next_prototype); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2638 | __ testq(FieldOperand(map, Map::kBitField3Offset), |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame^] | 2639 | Immediate(Map::HasHiddenPrototype::kMask)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2640 | __ j(zero, receiver_check_failed); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame^] | 2641 | __ movp(receiver, FieldOperand(map, Map::kPrototypeOffset)); |
| 2642 | __ movp(map, FieldOperand(receiver, HeapObject::kMapOffset)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2643 | // Iterate. |
| 2644 | __ jmp(&prototype_loop_start, Label::kNear); |
| 2645 | |
| 2646 | __ bind(&receiver_check_passed); |
| 2647 | } |
| 2648 | |
| 2649 | |
| 2650 | void Builtins::Generate_HandleFastApiCall(MacroAssembler* masm) { |
| 2651 | // ----------- S t a t e ------------- |
| 2652 | // -- rax : number of arguments (not including the receiver) |
| 2653 | // -- rdi : callee |
| 2654 | // -- rsi : context |
| 2655 | // -- rsp[0] : return address |
| 2656 | // -- rsp[8] : last argument |
| 2657 | // -- ... |
| 2658 | // -- rsp[rax * 8] : first argument |
| 2659 | // -- rsp[(rax + 1) * 8] : receiver |
| 2660 | // ----------------------------------- |
| 2661 | |
| 2662 | StackArgumentsAccessor args(rsp, rax); |
| 2663 | |
| 2664 | // Load the FunctionTemplateInfo. |
| 2665 | __ movp(rbx, FieldOperand(rdi, JSFunction::kSharedFunctionInfoOffset)); |
| 2666 | __ movp(rbx, FieldOperand(rbx, SharedFunctionInfo::kFunctionDataOffset)); |
| 2667 | |
| 2668 | // Do the compatible receiver check. |
| 2669 | Label receiver_check_failed; |
| 2670 | __ movp(rcx, args.GetReceiverOperand()); |
| 2671 | CompatibleReceiverCheck(masm, rcx, rbx, rdx, r8, r9, &receiver_check_failed); |
| 2672 | |
| 2673 | // Get the callback offset from the FunctionTemplateInfo, and jump to the |
| 2674 | // beginning of the code. |
| 2675 | __ movp(rdx, FieldOperand(rbx, FunctionTemplateInfo::kCallCodeOffset)); |
| 2676 | __ movp(rdx, FieldOperand(rdx, CallHandlerInfo::kFastHandlerOffset)); |
| 2677 | __ addp(rdx, Immediate(Code::kHeaderSize - kHeapObjectTag)); |
| 2678 | __ jmp(rdx); |
| 2679 | |
| 2680 | // Compatible receiver check failed: pop return address, arguments and |
| 2681 | // receiver and throw an Illegal Invocation exception. |
| 2682 | __ bind(&receiver_check_failed); |
| 2683 | __ PopReturnAddressTo(rbx); |
| 2684 | __ leap(rax, Operand(rax, times_pointer_size, 1 * kPointerSize)); |
| 2685 | __ addp(rsp, rax); |
| 2686 | __ PushReturnAddressFrom(rbx); |
| 2687 | { |
| 2688 | FrameScope scope(masm, StackFrame::INTERNAL); |
| 2689 | __ TailCallRuntime(Runtime::kThrowIllegalInvocation); |
| 2690 | } |
| 2691 | } |
| 2692 | |
| 2693 | |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 2694 | void Builtins::Generate_OnStackReplacement(MacroAssembler* masm) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2695 | // Lookup the function in the JavaScript frame. |
| 2696 | __ movp(rax, Operand(rbp, JavaScriptFrameConstants::kFunctionOffset)); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 2697 | { |
| 2698 | FrameScope scope(masm, StackFrame::INTERNAL); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2699 | // Pass function as argument. |
| 2700 | __ Push(rax); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2701 | __ CallRuntime(Runtime::kCompileForOnStackReplacement); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 2702 | } |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 2703 | |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 2704 | Label skip; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2705 | // If the code object is null, just return to the unoptimized code. |
| 2706 | __ cmpp(rax, Immediate(0)); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 2707 | __ j(not_equal, &skip, Label::kNear); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 2708 | __ ret(0); |
| 2709 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2710 | __ bind(&skip); |
| 2711 | |
| 2712 | // Load deoptimization data from the code object. |
| 2713 | __ movp(rbx, Operand(rax, Code::kDeoptimizationDataOffset - kHeapObjectTag)); |
| 2714 | |
| 2715 | // Load the OSR entrypoint offset from the deoptimization data. |
| 2716 | __ SmiToInteger32(rbx, Operand(rbx, FixedArray::OffsetOfElementAt( |
| 2717 | DeoptimizationInputData::kOsrPcOffsetIndex) - kHeapObjectTag)); |
| 2718 | |
| 2719 | // Compute the target address = code_obj + header_size + osr_offset |
| 2720 | __ leap(rax, Operand(rax, rbx, times_1, Code::kHeaderSize - kHeapObjectTag)); |
| 2721 | |
| 2722 | // Overwrite the return address on the stack. |
| 2723 | __ movq(StackOperandForReturnAddress(0), rax); |
| 2724 | |
| 2725 | // And "return" to the OSR entry point of the function. |
| 2726 | __ ret(0); |
| 2727 | } |
| 2728 | |
| 2729 | |
| 2730 | void Builtins::Generate_OsrAfterStackCheck(MacroAssembler* masm) { |
| 2731 | // We check the stack limit as indicator that recompilation might be done. |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 2732 | Label ok; |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 2733 | __ CompareRoot(rsp, Heap::kStackLimitRootIndex); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2734 | __ j(above_equal, &ok); |
| 2735 | { |
| 2736 | FrameScope scope(masm, StackFrame::INTERNAL); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2737 | __ CallRuntime(Runtime::kStackGuard); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 2738 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2739 | __ jmp(masm->isolate()->builtins()->OnStackReplacement(), |
| 2740 | RelocInfo::CODE_TARGET); |
| 2741 | |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 2742 | __ bind(&ok); |
| 2743 | __ ret(0); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 2744 | } |
| 2745 | |
| 2746 | |
| 2747 | #undef __ |
| 2748 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2749 | } // namespace internal |
| 2750 | } // namespace v8 |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 2751 | |
| 2752 | #endif // V8_TARGET_ARCH_X64 |