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 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 18 | void Builtins::Generate_Adaptor(MacroAssembler* masm, CFunctionId id) { |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 19 | // ----------- S t a t e ------------- |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 20 | // -- rax : number of arguments excluding receiver |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 21 | // -- rdi : target |
| 22 | // -- rdx : new.target |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 23 | // -- rsp[0] : return address |
| 24 | // -- rsp[8] : last argument |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 25 | // -- ... |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 26 | // -- rsp[8 * argc] : first argument |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 27 | // -- rsp[8 * (argc + 1)] : receiver |
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 | __ AssertFunction(rdi); |
| 30 | |
| 31 | // Make sure we operate in the context of the called function (for example |
| 32 | // ConstructStubs implemented in C++ will be run in the context of the caller |
| 33 | // instead of the callee, due to the way that [[Construct]] is defined for |
| 34 | // ordinary functions). |
| 35 | __ movp(rsi, FieldOperand(rdi, JSFunction::kContextOffset)); |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 36 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 37 | // Unconditionally insert the target and new target as extra arguments. They |
| 38 | // will be used by stack frame iterators when constructing the stack trace. |
| 39 | const int num_extra_args = 2; |
| 40 | __ PopReturnAddressTo(kScratchRegister); |
| 41 | __ Push(rdi); |
| 42 | __ Push(rdx); |
| 43 | __ PushReturnAddressFrom(kScratchRegister); |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 44 | |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 45 | // JumpToExternalReference expects rax to contain the number of arguments |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 46 | // including the receiver and the extra arguments. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 47 | __ addp(rax, Immediate(num_extra_args + 1)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 48 | |
| 49 | __ JumpToExternalReference(ExternalReference(id, masm->isolate())); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 50 | } |
| 51 | |
| 52 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 53 | static void GenerateTailCallToSharedCode(MacroAssembler* masm) { |
| 54 | __ movp(kScratchRegister, |
| 55 | FieldOperand(rdi, JSFunction::kSharedFunctionInfoOffset)); |
| 56 | __ movp(kScratchRegister, |
| 57 | FieldOperand(kScratchRegister, SharedFunctionInfo::kCodeOffset)); |
| 58 | __ leap(kScratchRegister, FieldOperand(kScratchRegister, Code::kHeaderSize)); |
| 59 | __ jmp(kScratchRegister); |
| 60 | } |
| 61 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 62 | static void GenerateTailCallToReturnedCode(MacroAssembler* masm, |
| 63 | Runtime::FunctionId function_id) { |
| 64 | // ----------- S t a t e ------------- |
| 65 | // -- rax : argument count (preserved for callee) |
| 66 | // -- rdx : new target (preserved for callee) |
| 67 | // -- rdi : target function (preserved for callee) |
| 68 | // ----------------------------------- |
| 69 | { |
| 70 | FrameScope scope(masm, StackFrame::INTERNAL); |
| 71 | // Push the number of arguments to the callee. |
| 72 | __ Integer32ToSmi(rax, rax); |
| 73 | __ Push(rax); |
| 74 | // Push a copy of the target function and the new target. |
| 75 | __ Push(rdi); |
| 76 | __ Push(rdx); |
| 77 | // Function is also the parameter to the runtime call. |
| 78 | __ Push(rdi); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 79 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 80 | __ CallRuntime(function_id, 1); |
| 81 | __ movp(rbx, rax); |
| 82 | |
| 83 | // Restore target function and new target. |
| 84 | __ Pop(rdx); |
| 85 | __ Pop(rdi); |
| 86 | __ Pop(rax); |
| 87 | __ SmiToInteger32(rax, rax); |
| 88 | } |
| 89 | __ leap(rbx, FieldOperand(rbx, Code::kHeaderSize)); |
| 90 | __ jmp(rbx); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 91 | } |
| 92 | |
| 93 | |
| 94 | void Builtins::Generate_InOptimizationQueue(MacroAssembler* masm) { |
| 95 | // Checking whether the queued function is ready for install is optional, |
| 96 | // since we come across interrupts and stack checks elsewhere. However, |
| 97 | // not checking may delay installing ready functions, and always checking |
| 98 | // would be quite expensive. A good compromise is to first check against |
| 99 | // stack limit as a cue for an interrupt signal. |
| 100 | Label ok; |
| 101 | __ CompareRoot(rsp, Heap::kStackLimitRootIndex); |
| 102 | __ j(above_equal, &ok); |
| 103 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 104 | GenerateTailCallToReturnedCode(masm, Runtime::kTryInstallOptimizedCode); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 105 | |
| 106 | __ bind(&ok); |
| 107 | GenerateTailCallToSharedCode(masm); |
| 108 | } |
| 109 | |
| 110 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 111 | static void Generate_JSConstructStubHelper(MacroAssembler* masm, |
| 112 | bool is_api_function, |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 113 | bool create_implicit_receiver, |
| 114 | bool check_derived_construct) { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 115 | // ----------- S t a t e ------------- |
| 116 | // -- rax: number of arguments |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 117 | // -- rsi: context |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 118 | // -- rdi: constructor function |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 119 | // -- rbx: allocation site or undefined |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 120 | // -- rdx: new target |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 121 | // ----------------------------------- |
| 122 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 123 | // Enter a construct frame. |
| 124 | { |
| 125 | FrameScope scope(masm, StackFrame::CONSTRUCT); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 126 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 127 | // Preserve the incoming parameters on the stack. |
| 128 | __ AssertUndefinedOrAllocationSite(rbx); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 129 | __ Push(rsi); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 130 | __ Push(rbx); |
| 131 | __ Integer32ToSmi(rcx, rax); |
| 132 | __ Push(rcx); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 133 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 134 | if (create_implicit_receiver) { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 135 | // Allocate the new receiver object. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 136 | __ Push(rdi); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 137 | __ Push(rdx); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 138 | FastNewObjectStub stub(masm->isolate()); |
| 139 | __ CallStub(&stub); |
| 140 | __ movp(rbx, rax); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 141 | __ Pop(rdx); |
| 142 | __ Pop(rdi); |
| 143 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 144 | // ----------- S t a t e ------------- |
| 145 | // -- rdi: constructor function |
| 146 | // -- rbx: newly allocated object |
| 147 | // -- rdx: new target |
| 148 | // ----------------------------------- |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 149 | |
| 150 | // Retrieve smi-tagged arguments count from the stack. |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 151 | __ SmiToInteger32(rax, Operand(rsp, 0 * kPointerSize)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 152 | } |
| 153 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 154 | if (create_implicit_receiver) { |
| 155 | // Push the allocated receiver to the stack. We need two copies |
| 156 | // because we may have to return the original one and the calling |
| 157 | // conventions dictate that the called function pops the receiver. |
| 158 | __ Push(rbx); |
| 159 | __ Push(rbx); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 160 | } else { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 161 | __ PushRoot(Heap::kTheHoleValueRootIndex); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 162 | } |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 163 | |
| 164 | // Set up pointer to last argument. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 165 | __ leap(rbx, Operand(rbp, StandardFrameConstants::kCallerSPOffset)); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 166 | |
| 167 | // Copy arguments and receiver to the expression stack. |
| 168 | Label loop, entry; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 169 | __ movp(rcx, rax); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 170 | __ jmp(&entry); |
| 171 | __ bind(&loop); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 172 | __ Push(Operand(rbx, rcx, times_pointer_size, 0)); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 173 | __ bind(&entry); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 174 | __ decp(rcx); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 175 | __ j(greater_equal, &loop); |
| 176 | |
| 177 | // Call the function. |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 178 | ParameterCount actual(rax); |
| 179 | __ InvokeFunction(rdi, rdx, actual, CALL_FUNCTION, |
| 180 | CheckDebugStepCallWrapper()); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 181 | |
| 182 | // Store offset of return address for deoptimizer. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 183 | if (create_implicit_receiver && !is_api_function) { |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 184 | masm->isolate()->heap()->SetConstructStubDeoptPCOffset(masm->pc_offset()); |
| 185 | } |
| 186 | |
| 187 | // Restore context from the frame. |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 188 | __ movp(rsi, Operand(rbp, ConstructFrameConstants::kContextOffset)); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 189 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 190 | if (create_implicit_receiver) { |
| 191 | // If the result is an object (in the ECMA sense), we should get rid |
| 192 | // of the receiver and use the result; see ECMA-262 section 13.2.2-7 |
| 193 | // on page 74. |
| 194 | Label use_receiver, exit; |
| 195 | // If the result is a smi, it is *not* an object in the ECMA sense. |
| 196 | __ JumpIfSmi(rax, &use_receiver); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 197 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 198 | // If the type of the result (stored in its map) is less than |
| 199 | // FIRST_JS_RECEIVER_TYPE, it is not an object in the ECMA sense. |
| 200 | STATIC_ASSERT(LAST_JS_RECEIVER_TYPE == LAST_TYPE); |
| 201 | __ CmpObjectType(rax, FIRST_JS_RECEIVER_TYPE, rcx); |
| 202 | __ j(above_equal, &exit); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 203 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 204 | // Throw away the result of the constructor invocation and use the |
| 205 | // on-stack receiver as the result. |
| 206 | __ bind(&use_receiver); |
| 207 | __ movp(rax, Operand(rsp, 0)); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 208 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 209 | // Restore the arguments count and leave the construct frame. The |
| 210 | // arguments count is stored below the receiver. |
| 211 | __ bind(&exit); |
| 212 | __ movp(rbx, Operand(rsp, 1 * kPointerSize)); |
| 213 | } else { |
| 214 | __ movp(rbx, Operand(rsp, 0)); |
| 215 | } |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 216 | |
| 217 | // Leave construct frame. |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 218 | } |
| 219 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 220 | // ES6 9.2.2. Step 13+ |
| 221 | // Check that the result is not a Smi, indicating that the constructor result |
| 222 | // from a derived class is neither undefined nor an Object. |
| 223 | if (check_derived_construct) { |
| 224 | Label dont_throw; |
| 225 | __ JumpIfNotSmi(rax, &dont_throw); |
| 226 | { |
| 227 | FrameScope scope(masm, StackFrame::INTERNAL); |
| 228 | __ CallRuntime(Runtime::kThrowDerivedConstructorReturnedNonObject); |
| 229 | } |
| 230 | __ bind(&dont_throw); |
| 231 | } |
| 232 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 233 | // Remove caller arguments from the stack and return. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 234 | __ PopReturnAddressTo(rcx); |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 235 | SmiIndex index = masm->SmiToIndex(rbx, rbx, kPointerSizeLog2); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 236 | __ leap(rsp, Operand(rsp, index.reg, index.scale, 1 * kPointerSize)); |
| 237 | __ PushReturnAddressFrom(rcx); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 238 | if (create_implicit_receiver) { |
| 239 | Counters* counters = masm->isolate()->counters(); |
| 240 | __ IncrementCounter(counters->constructed_objects(), 1); |
| 241 | } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 242 | __ ret(0); |
| 243 | } |
| 244 | |
| 245 | |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 246 | void Builtins::Generate_JSConstructStubGeneric(MacroAssembler* masm) { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 247 | Generate_JSConstructStubHelper(masm, false, true, false); |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 248 | } |
| 249 | |
| 250 | |
| 251 | void Builtins::Generate_JSConstructStubApi(MacroAssembler* masm) { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 252 | Generate_JSConstructStubHelper(masm, true, false, false); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 253 | } |
| 254 | |
| 255 | |
| 256 | void Builtins::Generate_JSBuiltinsConstructStub(MacroAssembler* masm) { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 257 | Generate_JSConstructStubHelper(masm, false, false, false); |
| 258 | } |
| 259 | |
| 260 | |
| 261 | void Builtins::Generate_JSBuiltinsConstructStubForDerived( |
| 262 | MacroAssembler* masm) { |
| 263 | Generate_JSConstructStubHelper(masm, false, false, true); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 264 | } |
| 265 | |
| 266 | |
| 267 | void Builtins::Generate_ConstructedNonConstructable(MacroAssembler* masm) { |
| 268 | FrameScope scope(masm, StackFrame::INTERNAL); |
| 269 | __ Push(rdi); |
| 270 | __ CallRuntime(Runtime::kThrowConstructedNonConstructable); |
| 271 | } |
| 272 | |
| 273 | |
| 274 | enum IsTagged { kRaxIsSmiTagged, kRaxIsUntaggedInt }; |
| 275 | |
| 276 | |
| 277 | // Clobbers rcx, r11, kScratchRegister; preserves all other registers. |
| 278 | static void Generate_CheckStackOverflow(MacroAssembler* masm, |
| 279 | IsTagged rax_is_tagged) { |
| 280 | // rax : the number of items to be pushed to the stack |
| 281 | // |
| 282 | // Check the stack for overflow. We are not trying to catch |
| 283 | // interruptions (e.g. debug break and preemption) here, so the "real stack |
| 284 | // limit" is checked. |
| 285 | Label okay; |
| 286 | __ LoadRoot(kScratchRegister, Heap::kRealStackLimitRootIndex); |
| 287 | __ movp(rcx, rsp); |
| 288 | // Make rcx the space we have left. The stack might already be overflowed |
| 289 | // here which will cause rcx to become negative. |
| 290 | __ subp(rcx, kScratchRegister); |
| 291 | // Make r11 the space we need for the array when it is unrolled onto the |
| 292 | // stack. |
| 293 | if (rax_is_tagged == kRaxIsSmiTagged) { |
| 294 | __ PositiveSmiTimesPowerOfTwoToInteger64(r11, rax, kPointerSizeLog2); |
| 295 | } else { |
| 296 | DCHECK(rax_is_tagged == kRaxIsUntaggedInt); |
| 297 | __ movp(r11, rax); |
| 298 | __ shlq(r11, Immediate(kPointerSizeLog2)); |
| 299 | } |
| 300 | // Check if the arguments will overflow the stack. |
| 301 | __ cmpp(rcx, r11); |
| 302 | __ j(greater, &okay); // Signed comparison. |
| 303 | |
| 304 | // Out of stack space. |
| 305 | __ CallRuntime(Runtime::kThrowStackOverflow); |
| 306 | |
| 307 | __ bind(&okay); |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 308 | } |
| 309 | |
| 310 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 311 | static void Generate_JSEntryTrampolineHelper(MacroAssembler* masm, |
| 312 | bool is_construct) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 313 | ProfileEntryHookStub::MaybeCallEntryHook(masm); |
| 314 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 315 | // Expects five C++ function parameters. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 316 | // - Object* new_target |
| 317 | // - JSFunction* function |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 318 | // - Object* receiver |
| 319 | // - int argc |
| 320 | // - Object*** argv |
| 321 | // (see Handle::Invoke in execution.cc). |
| 322 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 323 | // Open a C++ scope for the FrameScope. |
| 324 | { |
| 325 | // Platform specific argument handling. After this, the stack contains |
| 326 | // an internal frame and the pushed function and receiver, and |
| 327 | // register rax and rbx holds the argument count and argument array, |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 328 | // while rdi holds the function pointer, rsi the context, and rdx the |
| 329 | // new.target. |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 330 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 331 | #ifdef _WIN64 |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 332 | // MSVC parameters in: |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 333 | // rcx : new_target |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 334 | // rdx : function |
| 335 | // r8 : receiver |
| 336 | // r9 : argc |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 337 | // [rsp+0x20] : argv |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 338 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 339 | // Enter an internal frame. |
| 340 | FrameScope scope(masm, StackFrame::INTERNAL); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 341 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 342 | // Setup the context (we need to use the caller context from the isolate). |
| 343 | ExternalReference context_address(Isolate::kContextAddress, |
| 344 | masm->isolate()); |
| 345 | __ movp(rsi, masm->ExternalOperand(context_address)); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 346 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 347 | // Push the function and the receiver onto the stack. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 348 | __ Push(rdx); |
| 349 | __ Push(r8); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 350 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 351 | // Load the number of arguments and setup pointer to the arguments. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 352 | __ movp(rax, r9); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 353 | // Load the previous frame pointer to access C argument on stack |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 354 | __ movp(kScratchRegister, Operand(rbp, 0)); |
| 355 | __ movp(rbx, Operand(kScratchRegister, EntryFrameConstants::kArgvOffset)); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 356 | // Load the function pointer into rdi. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 357 | __ movp(rdi, rdx); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 358 | // Load the new.target into rdx. |
| 359 | __ movp(rdx, rcx); |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 360 | #else // _WIN64 |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 361 | // GCC parameters in: |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 362 | // rdi : new_target |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 363 | // rsi : function |
| 364 | // rdx : receiver |
| 365 | // rcx : argc |
| 366 | // r8 : argv |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 367 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 368 | __ movp(r11, rdi); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 369 | __ movp(rdi, rsi); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 370 | // rdi : function |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 371 | // r11 : new_target |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 372 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 373 | // Clear the context before we push it when entering the internal frame. |
| 374 | __ Set(rsi, 0); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 375 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 376 | // Enter an internal frame. |
| 377 | FrameScope scope(masm, StackFrame::INTERNAL); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 378 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 379 | // Setup the context (we need to use the caller context from the isolate). |
| 380 | ExternalReference context_address(Isolate::kContextAddress, |
| 381 | masm->isolate()); |
| 382 | __ movp(rsi, masm->ExternalOperand(context_address)); |
| 383 | |
| 384 | // Push the function and receiver onto the stack. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 385 | __ Push(rdi); |
| 386 | __ Push(rdx); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 387 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 388 | // Load the number of arguments and setup pointer to the arguments. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 389 | __ movp(rax, rcx); |
| 390 | __ movp(rbx, r8); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 391 | |
| 392 | // Load the new.target into rdx. |
| 393 | __ movp(rdx, r11); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 394 | #endif // _WIN64 |
| 395 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 396 | // Current stack contents: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 397 | // [rsp + 2 * kPointerSize ... ] : Internal frame |
| 398 | // [rsp + kPointerSize] : function |
| 399 | // [rsp] : receiver |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 400 | // Current register contents: |
| 401 | // rax : argc |
| 402 | // rbx : argv |
| 403 | // rsi : context |
| 404 | // rdi : function |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 405 | // rdx : new.target |
| 406 | |
| 407 | // Check if we have enough stack space to push all arguments. |
| 408 | // Expects argument count in rax. Clobbers rcx, r11. |
| 409 | Generate_CheckStackOverflow(masm, kRaxIsUntaggedInt); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 410 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 411 | // Copy arguments to the stack in a loop. |
| 412 | // Register rbx points to array of pointers to handle locations. |
| 413 | // Push the values of these handles. |
| 414 | Label loop, entry; |
| 415 | __ Set(rcx, 0); // Set loop variable to 0. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 416 | __ jmp(&entry, Label::kNear); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 417 | __ bind(&loop); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 418 | __ movp(kScratchRegister, Operand(rbx, rcx, times_pointer_size, 0)); |
| 419 | __ Push(Operand(kScratchRegister, 0)); // dereference handle |
| 420 | __ addp(rcx, Immediate(1)); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 421 | __ bind(&entry); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 422 | __ cmpp(rcx, rax); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 423 | __ j(not_equal, &loop); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 424 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 425 | // Invoke the builtin code. |
| 426 | Handle<Code> builtin = is_construct |
| 427 | ? masm->isolate()->builtins()->Construct() |
| 428 | : masm->isolate()->builtins()->Call(); |
| 429 | __ Call(builtin, RelocInfo::CODE_TARGET); |
| 430 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 431 | // Exit the internal frame. Notice that this also removes the empty |
| 432 | // context and the function left on the stack by the code |
| 433 | // invocation. |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 434 | } |
| 435 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 436 | // TODO(X64): Is argument correct? Is there a receiver to remove? |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 437 | __ ret(1 * kPointerSize); // Remove receiver. |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 438 | } |
| 439 | |
| 440 | |
| 441 | void Builtins::Generate_JSEntryTrampoline(MacroAssembler* masm) { |
| 442 | Generate_JSEntryTrampolineHelper(masm, false); |
| 443 | } |
| 444 | |
| 445 | |
| 446 | void Builtins::Generate_JSConstructEntryTrampoline(MacroAssembler* masm) { |
| 447 | Generate_JSEntryTrampolineHelper(masm, true); |
| 448 | } |
| 449 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 450 | // static |
| 451 | void Builtins::Generate_ResumeGeneratorTrampoline(MacroAssembler* masm) { |
| 452 | // ----------- S t a t e ------------- |
| 453 | // -- rax : the value to pass to the generator |
| 454 | // -- rbx : the JSGeneratorObject to resume |
| 455 | // -- rdx : the resume mode (tagged) |
| 456 | // -- rsp[0] : return address |
| 457 | // ----------------------------------- |
| 458 | __ AssertGeneratorObject(rbx); |
| 459 | |
| 460 | // Store input value into generator object. |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 461 | __ movp(FieldOperand(rbx, JSGeneratorObject::kInputOrDebugPosOffset), rax); |
| 462 | __ RecordWriteField(rbx, JSGeneratorObject::kInputOrDebugPosOffset, rax, rcx, |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 463 | kDontSaveFPRegs); |
| 464 | |
| 465 | // Store resume mode into generator object. |
| 466 | __ movp(FieldOperand(rbx, JSGeneratorObject::kResumeModeOffset), rdx); |
| 467 | |
| 468 | // Load suspended function and context. |
| 469 | __ movp(rsi, FieldOperand(rbx, JSGeneratorObject::kContextOffset)); |
| 470 | __ movp(rdi, FieldOperand(rbx, JSGeneratorObject::kFunctionOffset)); |
| 471 | |
| 472 | // Flood function if we are stepping. |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 473 | Label prepare_step_in_if_stepping, prepare_step_in_suspended_generator; |
| 474 | Label stepping_prepared; |
| 475 | ExternalReference last_step_action = |
| 476 | ExternalReference::debug_last_step_action_address(masm->isolate()); |
| 477 | Operand last_step_action_operand = masm->ExternalOperand(last_step_action); |
| 478 | STATIC_ASSERT(StepFrame > StepIn); |
| 479 | __ cmpb(last_step_action_operand, Immediate(StepIn)); |
| 480 | __ j(greater_equal, &prepare_step_in_if_stepping); |
| 481 | |
| 482 | // Flood function if we need to continue stepping in the suspended generator. |
| 483 | ExternalReference debug_suspended_generator = |
| 484 | ExternalReference::debug_suspended_generator_address(masm->isolate()); |
| 485 | Operand debug_suspended_generator_operand = |
| 486 | masm->ExternalOperand(debug_suspended_generator); |
| 487 | __ cmpp(rbx, debug_suspended_generator_operand); |
| 488 | __ j(equal, &prepare_step_in_suspended_generator); |
| 489 | __ bind(&stepping_prepared); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 490 | |
| 491 | // Pop return address. |
| 492 | __ PopReturnAddressTo(rax); |
| 493 | |
| 494 | // Push receiver. |
| 495 | __ Push(FieldOperand(rbx, JSGeneratorObject::kReceiverOffset)); |
| 496 | |
| 497 | // ----------- S t a t e ------------- |
| 498 | // -- rax : return address |
| 499 | // -- rbx : the JSGeneratorObject to resume |
| 500 | // -- rdx : the resume mode (tagged) |
| 501 | // -- rdi : generator function |
| 502 | // -- rsi : generator context |
| 503 | // -- rsp[0] : generator receiver |
| 504 | // ----------------------------------- |
| 505 | |
| 506 | // Push holes for arguments to generator function. Since the parser forced |
| 507 | // context allocation for any variables in generators, the actual argument |
| 508 | // values have already been copied into the context and these dummy values |
| 509 | // will never be used. |
| 510 | __ movp(rcx, FieldOperand(rdi, JSFunction::kSharedFunctionInfoOffset)); |
| 511 | __ LoadSharedFunctionInfoSpecialField( |
| 512 | rcx, rcx, SharedFunctionInfo::kFormalParameterCountOffset); |
| 513 | { |
| 514 | Label done_loop, loop; |
| 515 | __ bind(&loop); |
| 516 | __ subl(rcx, Immediate(1)); |
| 517 | __ j(carry, &done_loop, Label::kNear); |
| 518 | __ PushRoot(Heap::kTheHoleValueRootIndex); |
| 519 | __ jmp(&loop); |
| 520 | __ bind(&done_loop); |
| 521 | } |
| 522 | |
| 523 | // Dispatch on the kind of generator object. |
| 524 | Label old_generator; |
| 525 | __ movp(rcx, FieldOperand(rdi, JSFunction::kSharedFunctionInfoOffset)); |
| 526 | __ movp(rcx, FieldOperand(rcx, SharedFunctionInfo::kFunctionDataOffset)); |
| 527 | __ CmpObjectType(rcx, BYTECODE_ARRAY_TYPE, rcx); |
| 528 | __ j(not_equal, &old_generator); |
| 529 | |
| 530 | // New-style (ignition/turbofan) generator object. |
| 531 | { |
| 532 | __ PushReturnAddressFrom(rax); |
| 533 | __ movp(rax, FieldOperand(rdi, JSFunction::kSharedFunctionInfoOffset)); |
| 534 | __ LoadSharedFunctionInfoSpecialField( |
| 535 | rax, rax, SharedFunctionInfo::kFormalParameterCountOffset); |
| 536 | // We abuse new.target both to indicate that this is a resume call and to |
| 537 | // pass in the generator object. In ordinary calls, new.target is always |
| 538 | // undefined because generator functions are non-constructable. |
| 539 | __ movp(rdx, rbx); |
| 540 | __ jmp(FieldOperand(rdi, JSFunction::kCodeEntryOffset)); |
| 541 | } |
| 542 | |
| 543 | // Old-style (full-codegen) generator object. |
| 544 | __ bind(&old_generator); |
| 545 | { |
| 546 | // Enter a new JavaScript frame, and initialize its slots as they were when |
| 547 | // the generator was suspended. |
| 548 | FrameScope scope(masm, StackFrame::MANUAL); |
| 549 | __ PushReturnAddressFrom(rax); // Return address. |
| 550 | __ Push(rbp); // Caller's frame pointer. |
| 551 | __ Move(rbp, rsp); |
| 552 | __ Push(rsi); // Callee's context. |
| 553 | __ Push(rdi); // Callee's JS Function. |
| 554 | |
| 555 | // Restore the operand stack. |
| 556 | __ movp(rsi, FieldOperand(rbx, JSGeneratorObject::kOperandStackOffset)); |
| 557 | __ SmiToInteger32(rax, FieldOperand(rsi, FixedArray::kLengthOffset)); |
| 558 | { |
| 559 | Label done_loop, loop; |
| 560 | __ Set(rcx, 0); |
| 561 | __ bind(&loop); |
| 562 | __ cmpl(rcx, rax); |
| 563 | __ j(equal, &done_loop, Label::kNear); |
| 564 | __ Push( |
| 565 | FieldOperand(rsi, rcx, times_pointer_size, FixedArray::kHeaderSize)); |
| 566 | __ addl(rcx, Immediate(1)); |
| 567 | __ jmp(&loop); |
| 568 | __ bind(&done_loop); |
| 569 | } |
| 570 | |
| 571 | // Reset operand stack so we don't leak. |
| 572 | __ LoadRoot(FieldOperand(rbx, JSGeneratorObject::kOperandStackOffset), |
| 573 | Heap::kEmptyFixedArrayRootIndex); |
| 574 | |
| 575 | // Restore context. |
| 576 | __ movp(rsi, FieldOperand(rbx, JSGeneratorObject::kContextOffset)); |
| 577 | |
| 578 | // Resume the generator function at the continuation. |
| 579 | __ movp(rdx, FieldOperand(rdi, JSFunction::kSharedFunctionInfoOffset)); |
| 580 | __ movp(rdx, FieldOperand(rdx, SharedFunctionInfo::kCodeOffset)); |
| 581 | __ SmiToInteger64( |
| 582 | rcx, FieldOperand(rbx, JSGeneratorObject::kContinuationOffset)); |
| 583 | __ leap(rdx, FieldOperand(rdx, rcx, times_1, Code::kHeaderSize)); |
| 584 | __ Move(FieldOperand(rbx, JSGeneratorObject::kContinuationOffset), |
| 585 | Smi::FromInt(JSGeneratorObject::kGeneratorExecuting)); |
| 586 | __ movp(rax, rbx); // Continuation expects generator object in rax. |
| 587 | __ jmp(rdx); |
| 588 | } |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 589 | |
| 590 | __ bind(&prepare_step_in_if_stepping); |
| 591 | { |
| 592 | FrameScope scope(masm, StackFrame::INTERNAL); |
| 593 | __ Push(rbx); |
| 594 | __ Push(rdx); |
| 595 | __ Push(rdi); |
| 596 | __ CallRuntime(Runtime::kDebugPrepareStepInIfStepping); |
| 597 | __ Pop(rdx); |
| 598 | __ Pop(rbx); |
| 599 | __ movp(rdi, FieldOperand(rbx, JSGeneratorObject::kFunctionOffset)); |
| 600 | } |
| 601 | __ jmp(&stepping_prepared); |
| 602 | |
| 603 | __ bind(&prepare_step_in_suspended_generator); |
| 604 | { |
| 605 | FrameScope scope(masm, StackFrame::INTERNAL); |
| 606 | __ Push(rbx); |
| 607 | __ Push(rdx); |
| 608 | __ CallRuntime(Runtime::kDebugPrepareStepInSuspendedGenerator); |
| 609 | __ Pop(rdx); |
| 610 | __ Pop(rbx); |
| 611 | __ movp(rdi, FieldOperand(rbx, JSGeneratorObject::kFunctionOffset)); |
| 612 | } |
| 613 | __ jmp(&stepping_prepared); |
| 614 | } |
| 615 | |
| 616 | static void LeaveInterpreterFrame(MacroAssembler* masm, Register scratch1, |
| 617 | Register scratch2) { |
| 618 | Register args_count = scratch1; |
| 619 | Register return_pc = scratch2; |
| 620 | |
| 621 | // Get the arguments + receiver count. |
| 622 | __ movp(args_count, |
| 623 | Operand(rbp, InterpreterFrameConstants::kBytecodeArrayFromFp)); |
| 624 | __ movl(args_count, |
| 625 | FieldOperand(args_count, BytecodeArray::kParameterSizeOffset)); |
| 626 | |
| 627 | // Leave the frame (also dropping the register file). |
| 628 | __ leave(); |
| 629 | |
| 630 | // Drop receiver + arguments. |
| 631 | __ PopReturnAddressTo(return_pc); |
| 632 | __ addp(rsp, args_count); |
| 633 | __ PushReturnAddressFrom(return_pc); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 634 | } |
Iain Merrick | 7568138 | 2010-08-19 15:07:18 +0100 | [diff] [blame] | 635 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 636 | // Generate code for entering a JS function with the interpreter. |
| 637 | // On entry to the function the receiver and arguments have been pushed on the |
| 638 | // stack left to right. The actual argument count matches the formal parameter |
| 639 | // count expected by the function. |
| 640 | // |
| 641 | // The live registers are: |
| 642 | // o rdi: the JS function object being called |
| 643 | // o rdx: the new target |
| 644 | // o rsi: our context |
| 645 | // o rbp: the caller's frame pointer |
| 646 | // o rsp: stack pointer (pointing to return address) |
| 647 | // |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 648 | // The function builds an interpreter frame. See InterpreterFrameConstants in |
| 649 | // frames.h for its layout. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 650 | void Builtins::Generate_InterpreterEntryTrampoline(MacroAssembler* masm) { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 651 | ProfileEntryHookStub::MaybeCallEntryHook(masm); |
| 652 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 653 | // Open a frame scope to indicate that there is a frame on the stack. The |
| 654 | // MANUAL indicates that the scope shouldn't actually generate code to set up |
| 655 | // the frame (that is done below). |
| 656 | FrameScope frame_scope(masm, StackFrame::MANUAL); |
| 657 | __ pushq(rbp); // Caller's frame pointer. |
| 658 | __ movp(rbp, rsp); |
| 659 | __ Push(rsi); // Callee's context. |
| 660 | __ Push(rdi); // Callee's JS function. |
| 661 | __ Push(rdx); // Callee's new target. |
| 662 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 663 | // Get the bytecode array from the function object (or from the DebugInfo if |
| 664 | // it is present) and load it into kInterpreterBytecodeArrayRegister. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 665 | __ movp(rax, FieldOperand(rdi, JSFunction::kSharedFunctionInfoOffset)); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 666 | Label load_debug_bytecode_array, bytecode_array_loaded; |
| 667 | DCHECK_EQ(Smi::FromInt(0), DebugInfo::uninitialized()); |
| 668 | __ cmpp(FieldOperand(rax, SharedFunctionInfo::kDebugInfoOffset), |
| 669 | Immediate(0)); |
| 670 | __ j(not_equal, &load_debug_bytecode_array); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 671 | __ movp(kInterpreterBytecodeArrayRegister, |
| 672 | FieldOperand(rax, SharedFunctionInfo::kFunctionDataOffset)); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 673 | __ bind(&bytecode_array_loaded); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 674 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 675 | // Check function data field is actually a BytecodeArray object. |
| 676 | Label bytecode_array_not_present; |
| 677 | __ CompareRoot(kInterpreterBytecodeArrayRegister, |
| 678 | Heap::kUndefinedValueRootIndex); |
| 679 | __ j(equal, &bytecode_array_not_present); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 680 | if (FLAG_debug_code) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 681 | __ AssertNotSmi(kInterpreterBytecodeArrayRegister); |
| 682 | __ CmpObjectType(kInterpreterBytecodeArrayRegister, BYTECODE_ARRAY_TYPE, |
| 683 | rax); |
| 684 | __ Assert(equal, kFunctionDataShouldBeBytecodeArrayOnInterpreterEntry); |
| 685 | } |
| 686 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 687 | // Load initial bytecode offset. |
| 688 | __ movp(kInterpreterBytecodeOffsetRegister, |
| 689 | Immediate(BytecodeArray::kHeaderSize - kHeapObjectTag)); |
| 690 | |
| 691 | // Push bytecode array and Smi tagged bytecode offset. |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 692 | __ Push(kInterpreterBytecodeArrayRegister); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 693 | __ Integer32ToSmi(rcx, kInterpreterBytecodeOffsetRegister); |
| 694 | __ Push(rcx); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 695 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 696 | // Allocate the local and temporary register file on the stack. |
| 697 | { |
| 698 | // Load frame size from the BytecodeArray object. |
| 699 | __ movl(rcx, FieldOperand(kInterpreterBytecodeArrayRegister, |
| 700 | BytecodeArray::kFrameSizeOffset)); |
| 701 | |
| 702 | // Do a stack check to ensure we don't go over the limit. |
| 703 | Label ok; |
| 704 | __ movp(rdx, rsp); |
| 705 | __ subp(rdx, rcx); |
| 706 | __ CompareRoot(rdx, Heap::kRealStackLimitRootIndex); |
| 707 | __ j(above_equal, &ok, Label::kNear); |
| 708 | __ CallRuntime(Runtime::kThrowStackOverflow); |
| 709 | __ bind(&ok); |
| 710 | |
| 711 | // If ok, push undefined as the initial value for all register file entries. |
| 712 | Label loop_header; |
| 713 | Label loop_check; |
| 714 | __ LoadRoot(rdx, Heap::kUndefinedValueRootIndex); |
| 715 | __ j(always, &loop_check); |
| 716 | __ bind(&loop_header); |
| 717 | // TODO(rmcilroy): Consider doing more than one push per loop iteration. |
| 718 | __ Push(rdx); |
| 719 | // Continue loop if not done. |
| 720 | __ bind(&loop_check); |
| 721 | __ subp(rcx, Immediate(kPointerSize)); |
| 722 | __ j(greater_equal, &loop_header, Label::kNear); |
| 723 | } |
| 724 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 725 | // Load accumulator and dispatch table into registers. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 726 | __ LoadRoot(kInterpreterAccumulatorRegister, Heap::kUndefinedValueRootIndex); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 727 | __ Move( |
| 728 | kInterpreterDispatchTableRegister, |
| 729 | ExternalReference::interpreter_dispatch_table_address(masm->isolate())); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 730 | |
| 731 | // Dispatch to the first bytecode handler for the function. |
| 732 | __ movzxbp(rbx, Operand(kInterpreterBytecodeArrayRegister, |
| 733 | kInterpreterBytecodeOffsetRegister, times_1, 0)); |
| 734 | __ movp(rbx, Operand(kInterpreterDispatchTableRegister, rbx, |
| 735 | times_pointer_size, 0)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 736 | __ call(rbx); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 737 | masm->isolate()->heap()->SetInterpreterEntryReturnPCOffset(masm->pc_offset()); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 738 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 739 | // The return value is in rax. |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 740 | LeaveInterpreterFrame(masm, rbx, rcx); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 741 | __ ret(0); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 742 | |
| 743 | // Load debug copy of the bytecode array. |
| 744 | __ bind(&load_debug_bytecode_array); |
| 745 | Register debug_info = kInterpreterBytecodeArrayRegister; |
| 746 | __ movp(debug_info, FieldOperand(rax, SharedFunctionInfo::kDebugInfoOffset)); |
| 747 | __ movp(kInterpreterBytecodeArrayRegister, |
| 748 | FieldOperand(debug_info, DebugInfo::kAbstractCodeIndex)); |
| 749 | __ jmp(&bytecode_array_loaded); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 750 | |
| 751 | // If the bytecode array is no longer present, then the underlying function |
| 752 | // has been switched to a different kind of code and we heal the closure by |
| 753 | // switching the code entry field over to the new code object as well. |
| 754 | __ bind(&bytecode_array_not_present); |
| 755 | __ leave(); // Leave the frame so we can tail call. |
| 756 | __ movp(rcx, FieldOperand(rdi, JSFunction::kSharedFunctionInfoOffset)); |
| 757 | __ movp(rcx, FieldOperand(rcx, SharedFunctionInfo::kCodeOffset)); |
| 758 | __ leap(rcx, FieldOperand(rcx, Code::kHeaderSize)); |
| 759 | __ movp(FieldOperand(rdi, JSFunction::kCodeEntryOffset), rcx); |
| 760 | __ RecordWriteCodeEntryField(rdi, rcx, r15); |
| 761 | __ jmp(rcx); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 762 | } |
| 763 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 764 | void Builtins::Generate_InterpreterMarkBaselineOnReturn(MacroAssembler* masm) { |
| 765 | // Save the function and context for call to CompileBaseline. |
| 766 | __ movp(rdi, Operand(rbp, StandardFrameConstants::kFunctionOffset)); |
| 767 | __ movp(kContextRegister, |
| 768 | Operand(rbp, StandardFrameConstants::kContextOffset)); |
| 769 | |
| 770 | // Leave the frame before recompiling for baseline so that we don't count as |
| 771 | // an activation on the stack. |
| 772 | LeaveInterpreterFrame(masm, rbx, rcx); |
| 773 | |
| 774 | { |
| 775 | FrameScope frame_scope(masm, StackFrame::INTERNAL); |
| 776 | // Push return value. |
| 777 | __ Push(rax); |
| 778 | |
| 779 | // Push function as argument and compile for baseline. |
| 780 | __ Push(rdi); |
| 781 | __ CallRuntime(Runtime::kCompileBaseline); |
| 782 | |
| 783 | // Restore return value. |
| 784 | __ Pop(rax); |
| 785 | } |
| 786 | __ ret(0); |
| 787 | } |
| 788 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 789 | static void Generate_InterpreterPushArgs(MacroAssembler* masm, |
| 790 | bool push_receiver) { |
| 791 | // ----------- S t a t e ------------- |
| 792 | // -- rax : the number of arguments (not including the receiver) |
| 793 | // -- rbx : the address of the first argument to be pushed. Subsequent |
| 794 | // arguments should be consecutive above this, in the same order as |
| 795 | // they are to be pushed onto the stack. |
| 796 | // ----------------------------------- |
| 797 | |
| 798 | // Find the address of the last argument. |
| 799 | __ movp(rcx, rax); |
| 800 | if (push_receiver) { |
| 801 | __ addp(rcx, Immediate(1)); // Add one for receiver. |
| 802 | } |
| 803 | |
| 804 | __ shlp(rcx, Immediate(kPointerSizeLog2)); |
| 805 | __ negp(rcx); |
| 806 | __ addp(rcx, rbx); |
| 807 | |
| 808 | // Push the arguments. |
| 809 | Label loop_header, loop_check; |
| 810 | __ j(always, &loop_check); |
| 811 | __ bind(&loop_header); |
| 812 | __ Push(Operand(rbx, 0)); |
| 813 | __ subp(rbx, Immediate(kPointerSize)); |
| 814 | __ bind(&loop_check); |
| 815 | __ cmpp(rbx, rcx); |
| 816 | __ j(greater, &loop_header, Label::kNear); |
| 817 | } |
| 818 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 819 | // static |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 820 | void Builtins::Generate_InterpreterPushArgsAndCallImpl( |
| 821 | MacroAssembler* masm, TailCallMode tail_call_mode) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 822 | // ----------- S t a t e ------------- |
| 823 | // -- rax : the number of arguments (not including the receiver) |
| 824 | // -- rbx : the address of the first argument to be pushed. Subsequent |
| 825 | // arguments should be consecutive above this, in the same order as |
| 826 | // they are to be pushed onto the stack. |
| 827 | // -- rdi : the target to call (can be any Object). |
| 828 | // ----------------------------------- |
| 829 | |
| 830 | // Pop return address to allow tail-call after pushing arguments. |
| 831 | __ PopReturnAddressTo(kScratchRegister); |
| 832 | |
| 833 | Generate_InterpreterPushArgs(masm, true); |
| 834 | |
| 835 | // Call the target. |
| 836 | __ PushReturnAddressFrom(kScratchRegister); // Re-push return address. |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 837 | __ Jump(masm->isolate()->builtins()->Call(ConvertReceiverMode::kAny, |
| 838 | tail_call_mode), |
| 839 | RelocInfo::CODE_TARGET); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 840 | } |
| 841 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 842 | // static |
| 843 | void Builtins::Generate_InterpreterPushArgsAndConstruct(MacroAssembler* masm) { |
| 844 | // ----------- S t a t e ------------- |
| 845 | // -- rax : the number of arguments (not including the receiver) |
| 846 | // -- rdx : the new target (either the same as the constructor or |
| 847 | // the JSFunction on which new was invoked initially) |
| 848 | // -- rdi : the constructor to call (can be any Object) |
| 849 | // -- rbx : the address of the first argument to be pushed. Subsequent |
| 850 | // arguments should be consecutive above this, in the same order as |
| 851 | // they are to be pushed onto the stack. |
| 852 | // ----------------------------------- |
| 853 | |
| 854 | // Pop return address to allow tail-call after pushing arguments. |
| 855 | __ PopReturnAddressTo(kScratchRegister); |
| 856 | |
| 857 | // Push slot for the receiver to be constructed. |
| 858 | __ Push(Immediate(0)); |
| 859 | |
| 860 | Generate_InterpreterPushArgs(masm, false); |
| 861 | |
| 862 | // Push return address in preparation for the tail-call. |
| 863 | __ PushReturnAddressFrom(kScratchRegister); |
| 864 | |
| 865 | // Call the constructor (rax, rdx, rdi passed on). |
| 866 | __ Jump(masm->isolate()->builtins()->Construct(), RelocInfo::CODE_TARGET); |
| 867 | } |
| 868 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 869 | void Builtins::Generate_InterpreterEnterBytecodeDispatch(MacroAssembler* masm) { |
| 870 | // Set the return address to the correct point in the interpreter entry |
| 871 | // trampoline. |
| 872 | Smi* interpreter_entry_return_pc_offset( |
| 873 | masm->isolate()->heap()->interpreter_entry_return_pc_offset()); |
| 874 | DCHECK_NE(interpreter_entry_return_pc_offset, Smi::FromInt(0)); |
| 875 | __ Move(rbx, masm->isolate()->builtins()->InterpreterEntryTrampoline()); |
| 876 | __ addp(rbx, Immediate(interpreter_entry_return_pc_offset->value() + |
| 877 | Code::kHeaderSize - kHeapObjectTag)); |
| 878 | __ Push(rbx); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 879 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 880 | // Initialize dispatch table register. |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 881 | __ Move( |
| 882 | kInterpreterDispatchTableRegister, |
| 883 | ExternalReference::interpreter_dispatch_table_address(masm->isolate())); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 884 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 885 | // Get the bytecode array pointer from the frame. |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 886 | __ movp(kInterpreterBytecodeArrayRegister, |
| 887 | Operand(rbp, InterpreterFrameConstants::kBytecodeArrayFromFp)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 888 | |
| 889 | if (FLAG_debug_code) { |
| 890 | // Check function data field is actually a BytecodeArray object. |
| 891 | __ AssertNotSmi(kInterpreterBytecodeArrayRegister); |
| 892 | __ CmpObjectType(kInterpreterBytecodeArrayRegister, BYTECODE_ARRAY_TYPE, |
| 893 | rbx); |
| 894 | __ Assert(equal, kFunctionDataShouldBeBytecodeArrayOnInterpreterEntry); |
| 895 | } |
| 896 | |
| 897 | // Get the target bytecode offset from the frame. |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 898 | __ movp(kInterpreterBytecodeOffsetRegister, |
| 899 | Operand(rbp, InterpreterFrameConstants::kBytecodeOffsetFromFp)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 900 | __ SmiToInteger32(kInterpreterBytecodeOffsetRegister, |
| 901 | kInterpreterBytecodeOffsetRegister); |
| 902 | |
| 903 | // Dispatch to the target bytecode. |
| 904 | __ movzxbp(rbx, Operand(kInterpreterBytecodeArrayRegister, |
| 905 | kInterpreterBytecodeOffsetRegister, times_1, 0)); |
| 906 | __ movp(rbx, Operand(kInterpreterDispatchTableRegister, rbx, |
| 907 | times_pointer_size, 0)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 908 | __ jmp(rbx); |
| 909 | } |
| 910 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 911 | void Builtins::Generate_CompileLazy(MacroAssembler* masm) { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 912 | // ----------- S t a t e ------------- |
| 913 | // -- rax : argument count (preserved for callee) |
| 914 | // -- rdx : new target (preserved for callee) |
| 915 | // -- rdi : target function (preserved for callee) |
| 916 | // ----------------------------------- |
| 917 | // First lookup code, maybe we don't need to compile! |
| 918 | Label gotta_call_runtime; |
| 919 | Label maybe_call_runtime; |
| 920 | Label try_shared; |
| 921 | Label loop_top, loop_bottom; |
| 922 | |
| 923 | Register closure = rdi; |
| 924 | Register map = r8; |
| 925 | Register index = r9; |
| 926 | __ movp(map, FieldOperand(closure, JSFunction::kSharedFunctionInfoOffset)); |
| 927 | __ movp(map, FieldOperand(map, SharedFunctionInfo::kOptimizedCodeMapOffset)); |
| 928 | __ SmiToInteger32(index, FieldOperand(map, FixedArray::kLengthOffset)); |
| 929 | __ cmpl(index, Immediate(2)); |
| 930 | __ j(less, &gotta_call_runtime); |
| 931 | |
| 932 | // Find literals. |
| 933 | // r14 : native context |
| 934 | // r9 : length / index |
| 935 | // r8 : optimized code map |
| 936 | // rdx : new target |
| 937 | // rdi : closure |
| 938 | Register native_context = r14; |
| 939 | __ movp(native_context, NativeContextOperand()); |
| 940 | |
| 941 | __ bind(&loop_top); |
| 942 | // Native context match? |
| 943 | Register temp = r11; |
| 944 | __ movp(temp, FieldOperand(map, index, times_pointer_size, |
| 945 | SharedFunctionInfo::kOffsetToPreviousContext)); |
| 946 | __ movp(temp, FieldOperand(temp, WeakCell::kValueOffset)); |
| 947 | __ cmpp(temp, native_context); |
| 948 | __ j(not_equal, &loop_bottom); |
| 949 | // OSR id set to none? |
| 950 | __ movp(temp, FieldOperand(map, index, times_pointer_size, |
| 951 | SharedFunctionInfo::kOffsetToPreviousOsrAstId)); |
| 952 | __ SmiToInteger32(temp, temp); |
| 953 | const int bailout_id = BailoutId::None().ToInt(); |
| 954 | __ cmpl(temp, Immediate(bailout_id)); |
| 955 | __ j(not_equal, &loop_bottom); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 956 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 957 | // Literals available? |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 958 | Label got_literals, maybe_cleared_weakcell; |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 959 | __ movp(temp, FieldOperand(map, index, times_pointer_size, |
| 960 | SharedFunctionInfo::kOffsetToPreviousLiterals)); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 961 | // temp contains either a WeakCell pointing to the literals array or the |
| 962 | // literals array directly. |
| 963 | STATIC_ASSERT(WeakCell::kValueOffset == FixedArray::kLengthOffset); |
| 964 | __ movp(r15, FieldOperand(temp, WeakCell::kValueOffset)); |
| 965 | __ JumpIfSmi(r15, &maybe_cleared_weakcell); |
| 966 | // r15 is a pointer, therefore temp is a WeakCell pointing to a literals |
| 967 | // array. |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 968 | __ movp(temp, FieldOperand(temp, WeakCell::kValueOffset)); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 969 | __ jmp(&got_literals); |
| 970 | |
| 971 | // r15 is a smi. If it's 0, then we are looking at a cleared WeakCell |
| 972 | // around the literals array, and we should visit the runtime. If it's > 0, |
| 973 | // then temp already contains the literals array. |
| 974 | __ bind(&maybe_cleared_weakcell); |
| 975 | __ cmpp(r15, Immediate(0)); |
| 976 | __ j(equal, &gotta_call_runtime); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 977 | |
| 978 | // Save the literals in the closure. |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 979 | __ bind(&got_literals); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 980 | __ movp(FieldOperand(closure, JSFunction::kLiteralsOffset), temp); |
| 981 | __ movp(r15, index); |
| 982 | __ RecordWriteField(closure, JSFunction::kLiteralsOffset, temp, r15, |
| 983 | kDontSaveFPRegs, EMIT_REMEMBERED_SET, OMIT_SMI_CHECK); |
| 984 | |
| 985 | // Code available? |
| 986 | Register entry = rcx; |
| 987 | __ movp(entry, FieldOperand(map, index, times_pointer_size, |
| 988 | SharedFunctionInfo::kOffsetToPreviousCachedCode)); |
| 989 | __ movp(entry, FieldOperand(entry, WeakCell::kValueOffset)); |
| 990 | __ JumpIfSmi(entry, &maybe_call_runtime); |
| 991 | |
| 992 | // Found literals and code. Get them into the closure and return. |
| 993 | __ leap(entry, FieldOperand(entry, Code::kHeaderSize)); |
| 994 | |
| 995 | Label install_optimized_code_and_tailcall; |
| 996 | __ bind(&install_optimized_code_and_tailcall); |
| 997 | __ movp(FieldOperand(closure, JSFunction::kCodeEntryOffset), entry); |
| 998 | __ RecordWriteCodeEntryField(closure, entry, r15); |
| 999 | |
| 1000 | // Link the closure into the optimized function list. |
| 1001 | // rcx : code entry (entry) |
| 1002 | // r14 : native context |
| 1003 | // rdx : new target |
| 1004 | // rdi : closure |
| 1005 | __ movp(rbx, |
| 1006 | ContextOperand(native_context, Context::OPTIMIZED_FUNCTIONS_LIST)); |
| 1007 | __ movp(FieldOperand(closure, JSFunction::kNextFunctionLinkOffset), rbx); |
| 1008 | __ RecordWriteField(closure, JSFunction::kNextFunctionLinkOffset, rbx, r15, |
| 1009 | kDontSaveFPRegs, EMIT_REMEMBERED_SET, OMIT_SMI_CHECK); |
| 1010 | const int function_list_offset = |
| 1011 | Context::SlotOffset(Context::OPTIMIZED_FUNCTIONS_LIST); |
| 1012 | __ movp(ContextOperand(native_context, Context::OPTIMIZED_FUNCTIONS_LIST), |
| 1013 | closure); |
| 1014 | // Save closure before the write barrier. |
| 1015 | __ movp(rbx, closure); |
| 1016 | __ RecordWriteContextSlot(native_context, function_list_offset, closure, r15, |
| 1017 | kDontSaveFPRegs); |
| 1018 | __ movp(closure, rbx); |
| 1019 | __ jmp(entry); |
| 1020 | |
| 1021 | __ bind(&loop_bottom); |
| 1022 | __ subl(index, Immediate(SharedFunctionInfo::kEntryLength)); |
| 1023 | __ cmpl(index, Immediate(1)); |
| 1024 | __ j(greater, &loop_top); |
| 1025 | |
| 1026 | // We found neither literals nor code. |
| 1027 | __ jmp(&gotta_call_runtime); |
| 1028 | |
| 1029 | __ bind(&maybe_call_runtime); |
| 1030 | |
| 1031 | // Last possibility. Check the context free optimized code map entry. |
| 1032 | __ movp(entry, FieldOperand(map, FixedArray::kHeaderSize + |
| 1033 | SharedFunctionInfo::kSharedCodeIndex)); |
| 1034 | __ movp(entry, FieldOperand(entry, WeakCell::kValueOffset)); |
| 1035 | __ JumpIfSmi(entry, &try_shared); |
| 1036 | |
| 1037 | // Store code entry in the closure. |
| 1038 | __ leap(entry, FieldOperand(entry, Code::kHeaderSize)); |
| 1039 | __ jmp(&install_optimized_code_and_tailcall); |
| 1040 | |
| 1041 | __ bind(&try_shared); |
| 1042 | // Is the full code valid? |
| 1043 | __ movp(entry, FieldOperand(closure, JSFunction::kSharedFunctionInfoOffset)); |
| 1044 | __ movp(entry, FieldOperand(entry, SharedFunctionInfo::kCodeOffset)); |
| 1045 | __ movl(rbx, FieldOperand(entry, Code::kFlagsOffset)); |
| 1046 | __ andl(rbx, Immediate(Code::KindField::kMask)); |
| 1047 | __ shrl(rbx, Immediate(Code::KindField::kShift)); |
| 1048 | __ cmpl(rbx, Immediate(Code::BUILTIN)); |
| 1049 | __ j(equal, &gotta_call_runtime); |
| 1050 | // Yes, install the full code. |
| 1051 | __ leap(entry, FieldOperand(entry, Code::kHeaderSize)); |
| 1052 | __ movp(FieldOperand(closure, JSFunction::kCodeEntryOffset), entry); |
| 1053 | __ RecordWriteCodeEntryField(closure, entry, r15); |
| 1054 | __ jmp(entry); |
| 1055 | |
| 1056 | __ bind(&gotta_call_runtime); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1057 | GenerateTailCallToReturnedCode(masm, Runtime::kCompileLazy); |
Iain Merrick | 7568138 | 2010-08-19 15:07:18 +0100 | [diff] [blame] | 1058 | } |
| 1059 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 1060 | void Builtins::Generate_CompileBaseline(MacroAssembler* masm) { |
| 1061 | GenerateTailCallToReturnedCode(masm, Runtime::kCompileBaseline); |
| 1062 | } |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1063 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1064 | void Builtins::Generate_CompileOptimized(MacroAssembler* masm) { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1065 | GenerateTailCallToReturnedCode(masm, |
| 1066 | Runtime::kCompileOptimized_NotConcurrent); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1067 | } |
| 1068 | |
| 1069 | |
| 1070 | void Builtins::Generate_CompileOptimizedConcurrent(MacroAssembler* masm) { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1071 | GenerateTailCallToReturnedCode(masm, Runtime::kCompileOptimized_Concurrent); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1072 | } |
| 1073 | |
| 1074 | |
| 1075 | static void GenerateMakeCodeYoungAgainCommon(MacroAssembler* masm) { |
| 1076 | // For now, we are relying on the fact that make_code_young doesn't do any |
| 1077 | // garbage collection which allows us to save/restore the registers without |
| 1078 | // worrying about which of them contain pointers. We also don't build an |
| 1079 | // internal frame to make the code faster, since we shouldn't have to do stack |
| 1080 | // crawls in MakeCodeYoung. This seems a bit fragile. |
| 1081 | |
| 1082 | // Re-execute the code that was patched back to the young age when |
| 1083 | // the stub returns. |
| 1084 | __ subp(Operand(rsp, 0), Immediate(5)); |
| 1085 | __ Pushad(); |
| 1086 | __ Move(arg_reg_2, ExternalReference::isolate_address(masm->isolate())); |
| 1087 | __ movp(arg_reg_1, Operand(rsp, kNumSafepointRegisters * kPointerSize)); |
| 1088 | { // NOLINT |
| 1089 | FrameScope scope(masm, StackFrame::MANUAL); |
| 1090 | __ PrepareCallCFunction(2); |
| 1091 | __ CallCFunction( |
| 1092 | ExternalReference::get_make_code_young_function(masm->isolate()), 2); |
| 1093 | } |
| 1094 | __ Popad(); |
| 1095 | __ ret(0); |
| 1096 | } |
| 1097 | |
| 1098 | |
| 1099 | #define DEFINE_CODE_AGE_BUILTIN_GENERATOR(C) \ |
| 1100 | void Builtins::Generate_Make##C##CodeYoungAgainEvenMarking( \ |
| 1101 | MacroAssembler* masm) { \ |
| 1102 | GenerateMakeCodeYoungAgainCommon(masm); \ |
| 1103 | } \ |
| 1104 | void Builtins::Generate_Make##C##CodeYoungAgainOddMarking( \ |
| 1105 | MacroAssembler* masm) { \ |
| 1106 | GenerateMakeCodeYoungAgainCommon(masm); \ |
| 1107 | } |
| 1108 | CODE_AGE_LIST(DEFINE_CODE_AGE_BUILTIN_GENERATOR) |
| 1109 | #undef DEFINE_CODE_AGE_BUILTIN_GENERATOR |
| 1110 | |
| 1111 | |
| 1112 | void Builtins::Generate_MarkCodeAsExecutedOnce(MacroAssembler* masm) { |
| 1113 | // For now, as in GenerateMakeCodeYoungAgainCommon, we are relying on the fact |
| 1114 | // that make_code_young doesn't do any garbage collection which allows us to |
| 1115 | // save/restore the registers without worrying about which of them contain |
| 1116 | // pointers. |
| 1117 | __ Pushad(); |
| 1118 | __ Move(arg_reg_2, ExternalReference::isolate_address(masm->isolate())); |
| 1119 | __ movp(arg_reg_1, Operand(rsp, kNumSafepointRegisters * kPointerSize)); |
| 1120 | __ subp(arg_reg_1, Immediate(Assembler::kShortCallInstructionLength)); |
| 1121 | { // NOLINT |
| 1122 | FrameScope scope(masm, StackFrame::MANUAL); |
| 1123 | __ PrepareCallCFunction(2); |
| 1124 | __ CallCFunction( |
| 1125 | ExternalReference::get_mark_code_as_executed_function(masm->isolate()), |
| 1126 | 2); |
| 1127 | } |
| 1128 | __ Popad(); |
| 1129 | |
| 1130 | // Perform prologue operations usually performed by the young code stub. |
| 1131 | __ PopReturnAddressTo(kScratchRegister); |
| 1132 | __ pushq(rbp); // Caller's frame pointer. |
| 1133 | __ movp(rbp, rsp); |
| 1134 | __ Push(rsi); // Callee's context. |
| 1135 | __ Push(rdi); // Callee's JS Function. |
| 1136 | __ PushReturnAddressFrom(kScratchRegister); |
| 1137 | |
| 1138 | // Jump to point after the code-age stub. |
| 1139 | __ ret(0); |
| 1140 | } |
| 1141 | |
| 1142 | |
| 1143 | void Builtins::Generate_MarkCodeAsExecutedTwice(MacroAssembler* masm) { |
| 1144 | GenerateMakeCodeYoungAgainCommon(masm); |
| 1145 | } |
| 1146 | |
| 1147 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1148 | void Builtins::Generate_MarkCodeAsToBeExecutedOnce(MacroAssembler* masm) { |
| 1149 | Generate_MarkCodeAsExecutedOnce(masm); |
| 1150 | } |
| 1151 | |
| 1152 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1153 | static void Generate_NotifyStubFailureHelper(MacroAssembler* masm, |
| 1154 | SaveFPRegsMode save_doubles) { |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1155 | // Enter an internal frame. |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1156 | { |
| 1157 | FrameScope scope(masm, StackFrame::INTERNAL); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1158 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1159 | // Preserve registers across notification, this is important for compiled |
| 1160 | // stubs that tail call the runtime on deopts passing their parameters in |
| 1161 | // registers. |
| 1162 | __ Pushad(); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1163 | __ CallRuntime(Runtime::kNotifyStubFailure, save_doubles); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1164 | __ Popad(); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1165 | // Tear down internal frame. |
| 1166 | } |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1167 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1168 | __ DropUnderReturnAddress(1); // Ignore state offset |
| 1169 | __ ret(0); // Return to IC Miss stub, continuation still on stack. |
| 1170 | } |
| 1171 | |
| 1172 | |
| 1173 | void Builtins::Generate_NotifyStubFailure(MacroAssembler* masm) { |
| 1174 | Generate_NotifyStubFailureHelper(masm, kDontSaveFPRegs); |
| 1175 | } |
| 1176 | |
| 1177 | |
| 1178 | void Builtins::Generate_NotifyStubFailureSaveDoubles(MacroAssembler* masm) { |
| 1179 | Generate_NotifyStubFailureHelper(masm, kSaveFPRegs); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1180 | } |
| 1181 | |
| 1182 | |
| 1183 | static void Generate_NotifyDeoptimizedHelper(MacroAssembler* masm, |
| 1184 | Deoptimizer::BailoutType type) { |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 1185 | // Enter an internal frame. |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1186 | { |
| 1187 | FrameScope scope(masm, StackFrame::INTERNAL); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 1188 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1189 | // Pass the deoptimization type to the runtime system. |
| 1190 | __ Push(Smi::FromInt(static_cast<int>(type))); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 1191 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1192 | __ CallRuntime(Runtime::kNotifyDeoptimized); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1193 | // Tear down internal frame. |
| 1194 | } |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 1195 | |
| 1196 | // Get the full codegen state from the stack and untag it. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1197 | __ SmiToInteger32(kScratchRegister, Operand(rsp, kPCOnStackSize)); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 1198 | |
| 1199 | // Switch on the state. |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 1200 | Label not_no_registers, not_tos_rax; |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 1201 | __ cmpp(kScratchRegister, |
| 1202 | Immediate(static_cast<int>(Deoptimizer::BailoutState::NO_REGISTERS))); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 1203 | __ j(not_equal, ¬_no_registers, Label::kNear); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 1204 | __ ret(1 * kPointerSize); // Remove state. |
| 1205 | |
| 1206 | __ bind(¬_no_registers); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 1207 | DCHECK_EQ(kInterpreterAccumulatorRegister.code(), rax.code()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1208 | __ movp(rax, Operand(rsp, kPCOnStackSize + kPointerSize)); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 1209 | __ cmpp(kScratchRegister, |
| 1210 | Immediate(static_cast<int>(Deoptimizer::BailoutState::TOS_REGISTER))); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 1211 | __ j(not_equal, ¬_tos_rax, Label::kNear); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 1212 | __ ret(2 * kPointerSize); // Remove state, rax. |
| 1213 | |
| 1214 | __ bind(¬_tos_rax); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1215 | __ Abort(kNoCasesLeft); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1216 | } |
| 1217 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1218 | |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1219 | void Builtins::Generate_NotifyDeoptimized(MacroAssembler* masm) { |
| 1220 | Generate_NotifyDeoptimizedHelper(masm, Deoptimizer::EAGER); |
| 1221 | } |
| 1222 | |
| 1223 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1224 | void Builtins::Generate_NotifySoftDeoptimized(MacroAssembler* masm) { |
| 1225 | Generate_NotifyDeoptimizedHelper(masm, Deoptimizer::SOFT); |
| 1226 | } |
| 1227 | |
| 1228 | |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1229 | void Builtins::Generate_NotifyLazyDeoptimized(MacroAssembler* masm) { |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 1230 | Generate_NotifyDeoptimizedHelper(masm, Deoptimizer::LAZY); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1231 | } |
| 1232 | |
| 1233 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1234 | // static |
| 1235 | void Builtins::Generate_DatePrototype_GetField(MacroAssembler* masm, |
| 1236 | int field_index) { |
| 1237 | // ----------- S t a t e ------------- |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 1238 | // -- rax : number of arguments |
| 1239 | // -- rdi : function |
| 1240 | // -- rsi : context |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1241 | // -- rsp[0] : return address |
| 1242 | // -- rsp[8] : receiver |
| 1243 | // ----------------------------------- |
| 1244 | |
| 1245 | // 1. Load receiver into rax and check that it's actually a JSDate object. |
| 1246 | Label receiver_not_date; |
| 1247 | { |
| 1248 | StackArgumentsAccessor args(rsp, 0); |
| 1249 | __ movp(rax, args.GetReceiverOperand()); |
| 1250 | __ JumpIfSmi(rax, &receiver_not_date); |
| 1251 | __ CmpObjectType(rax, JS_DATE_TYPE, rbx); |
| 1252 | __ j(not_equal, &receiver_not_date); |
| 1253 | } |
| 1254 | |
| 1255 | // 2. Load the specified date field, falling back to the runtime as necessary. |
| 1256 | if (field_index == JSDate::kDateValue) { |
| 1257 | __ movp(rax, FieldOperand(rax, JSDate::kValueOffset)); |
| 1258 | } else { |
| 1259 | if (field_index < JSDate::kFirstUncachedField) { |
| 1260 | Label stamp_mismatch; |
| 1261 | __ Load(rdx, ExternalReference::date_cache_stamp(masm->isolate())); |
| 1262 | __ cmpp(rdx, FieldOperand(rax, JSDate::kCacheStampOffset)); |
| 1263 | __ j(not_equal, &stamp_mismatch, Label::kNear); |
| 1264 | __ movp(rax, FieldOperand( |
| 1265 | rax, JSDate::kValueOffset + field_index * kPointerSize)); |
| 1266 | __ ret(1 * kPointerSize); |
| 1267 | __ bind(&stamp_mismatch); |
| 1268 | } |
| 1269 | FrameScope scope(masm, StackFrame::INTERNAL); |
| 1270 | __ PrepareCallCFunction(2); |
| 1271 | __ Move(arg_reg_1, rax); |
| 1272 | __ Move(arg_reg_2, Smi::FromInt(field_index)); |
| 1273 | __ CallCFunction( |
| 1274 | ExternalReference::get_date_field_function(masm->isolate()), 2); |
| 1275 | } |
| 1276 | __ ret(1 * kPointerSize); |
| 1277 | |
| 1278 | // 3. Raise a TypeError if the receiver is not a date. |
| 1279 | __ bind(&receiver_not_date); |
| 1280 | { |
| 1281 | FrameScope scope(masm, StackFrame::MANUAL); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 1282 | __ Push(rbp); |
| 1283 | __ Move(rbp, rsp); |
| 1284 | __ Push(rsi); |
| 1285 | __ Push(rdi); |
| 1286 | __ Push(Immediate(0)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1287 | __ CallRuntime(Runtime::kThrowNotDateError); |
| 1288 | } |
| 1289 | } |
| 1290 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1291 | // static |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1292 | void Builtins::Generate_FunctionPrototypeApply(MacroAssembler* masm) { |
| 1293 | // ----------- S t a t e ------------- |
| 1294 | // -- rax : argc |
| 1295 | // -- rsp[0] : return address |
| 1296 | // -- rsp[8] : argArray |
| 1297 | // -- rsp[16] : thisArg |
| 1298 | // -- rsp[24] : receiver |
| 1299 | // ----------------------------------- |
| 1300 | |
| 1301 | // 1. Load receiver into rdi, argArray into rax (if present), remove all |
| 1302 | // arguments from the stack (including the receiver), and push thisArg (if |
| 1303 | // present) instead. |
| 1304 | { |
| 1305 | Label no_arg_array, no_this_arg; |
| 1306 | StackArgumentsAccessor args(rsp, rax); |
| 1307 | __ LoadRoot(rdx, Heap::kUndefinedValueRootIndex); |
| 1308 | __ movp(rbx, rdx); |
| 1309 | __ movp(rdi, args.GetReceiverOperand()); |
| 1310 | __ testp(rax, rax); |
| 1311 | __ j(zero, &no_this_arg, Label::kNear); |
| 1312 | { |
| 1313 | __ movp(rdx, args.GetArgumentOperand(1)); |
| 1314 | __ cmpp(rax, Immediate(1)); |
| 1315 | __ j(equal, &no_arg_array, Label::kNear); |
| 1316 | __ movp(rbx, args.GetArgumentOperand(2)); |
| 1317 | __ bind(&no_arg_array); |
| 1318 | } |
| 1319 | __ bind(&no_this_arg); |
| 1320 | __ PopReturnAddressTo(rcx); |
| 1321 | __ leap(rsp, Operand(rsp, rax, times_pointer_size, kPointerSize)); |
| 1322 | __ Push(rdx); |
| 1323 | __ PushReturnAddressFrom(rcx); |
| 1324 | __ movp(rax, rbx); |
| 1325 | } |
| 1326 | |
| 1327 | // ----------- S t a t e ------------- |
| 1328 | // -- rax : argArray |
| 1329 | // -- rdi : receiver |
| 1330 | // -- rsp[0] : return address |
| 1331 | // -- rsp[8] : thisArg |
| 1332 | // ----------------------------------- |
| 1333 | |
| 1334 | // 2. Make sure the receiver is actually callable. |
| 1335 | Label receiver_not_callable; |
| 1336 | __ JumpIfSmi(rdi, &receiver_not_callable, Label::kNear); |
| 1337 | __ movp(rcx, FieldOperand(rdi, HeapObject::kMapOffset)); |
| 1338 | __ testb(FieldOperand(rcx, Map::kBitFieldOffset), |
| 1339 | Immediate(1 << Map::kIsCallable)); |
| 1340 | __ j(zero, &receiver_not_callable, Label::kNear); |
| 1341 | |
| 1342 | // 3. Tail call with no arguments if argArray is null or undefined. |
| 1343 | Label no_arguments; |
| 1344 | __ JumpIfRoot(rax, Heap::kNullValueRootIndex, &no_arguments, Label::kNear); |
| 1345 | __ JumpIfRoot(rax, Heap::kUndefinedValueRootIndex, &no_arguments, |
| 1346 | Label::kNear); |
| 1347 | |
| 1348 | // 4a. Apply the receiver to the given argArray (passing undefined for |
| 1349 | // new.target). |
| 1350 | __ LoadRoot(rdx, Heap::kUndefinedValueRootIndex); |
| 1351 | __ Jump(masm->isolate()->builtins()->Apply(), RelocInfo::CODE_TARGET); |
| 1352 | |
| 1353 | // 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] | 1354 | // arguments to the receiver. Since we did not create a frame for |
| 1355 | // Function.prototype.apply() yet, we use a normal Call builtin here. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1356 | __ bind(&no_arguments); |
| 1357 | { |
| 1358 | __ Set(rax, 0); |
| 1359 | __ Jump(masm->isolate()->builtins()->Call(), RelocInfo::CODE_TARGET); |
| 1360 | } |
| 1361 | |
| 1362 | // 4c. The receiver is not callable, throw an appropriate TypeError. |
| 1363 | __ bind(&receiver_not_callable); |
| 1364 | { |
| 1365 | StackArgumentsAccessor args(rsp, 0); |
| 1366 | __ movp(args.GetReceiverOperand(), rdi); |
| 1367 | __ TailCallRuntime(Runtime::kThrowApplyNonFunction); |
| 1368 | } |
| 1369 | } |
| 1370 | |
| 1371 | |
| 1372 | // static |
| 1373 | void Builtins::Generate_FunctionPrototypeCall(MacroAssembler* masm) { |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1374 | // Stack Layout: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1375 | // rsp[0] : Return address |
| 1376 | // rsp[8] : Argument n |
| 1377 | // rsp[16] : Argument n-1 |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1378 | // ... |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1379 | // rsp[8 * n] : Argument 1 |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1380 | // rsp[8 * (n + 1)] : Receiver (callable to call) |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1381 | // |
| 1382 | // rax contains the number of arguments, n, not counting the receiver. |
| 1383 | // |
| 1384 | // 1. Make sure we have at least one argument. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1385 | { |
| 1386 | Label done; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1387 | __ testp(rax, rax); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1388 | __ j(not_zero, &done, Label::kNear); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1389 | __ PopReturnAddressTo(rbx); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1390 | __ PushRoot(Heap::kUndefinedValueRootIndex); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1391 | __ PushReturnAddressFrom(rbx); |
| 1392 | __ incp(rax); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1393 | __ bind(&done); |
| 1394 | } |
| 1395 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1396 | // 2. Get the callable to call (passed as receiver) from the stack. |
| 1397 | { |
| 1398 | StackArgumentsAccessor args(rsp, rax); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1399 | __ movp(rdi, args.GetReceiverOperand()); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1400 | } |
| 1401 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1402 | // 3. Shift arguments and return address one slot down on the stack |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1403 | // (overwriting the original receiver). Adjust argument count to make |
| 1404 | // the original first argument the new receiver. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1405 | { |
| 1406 | Label loop; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1407 | __ movp(rcx, rax); |
| 1408 | StackArgumentsAccessor args(rsp, rcx); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1409 | __ bind(&loop); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1410 | __ movp(rbx, args.GetArgumentOperand(1)); |
| 1411 | __ movp(args.GetArgumentOperand(0), rbx); |
| 1412 | __ decp(rcx); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1413 | __ j(not_zero, &loop); // While non-zero. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1414 | __ DropUnderReturnAddress(1, rbx); // Drop one slot under return address. |
| 1415 | __ decp(rax); // One fewer argument (first argument is new receiver). |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1416 | } |
| 1417 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1418 | // 4. Call the callable. |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1419 | // Since we did not create a frame for Function.prototype.call() yet, |
| 1420 | // we use a normal Call builtin here. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1421 | __ Jump(masm->isolate()->builtins()->Call(), RelocInfo::CODE_TARGET); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1422 | } |
| 1423 | |
| 1424 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1425 | void Builtins::Generate_ReflectApply(MacroAssembler* masm) { |
| 1426 | // ----------- S t a t e ------------- |
| 1427 | // -- rax : argc |
| 1428 | // -- rsp[0] : return address |
| 1429 | // -- rsp[8] : argumentsList |
| 1430 | // -- rsp[16] : thisArgument |
| 1431 | // -- rsp[24] : target |
| 1432 | // -- rsp[32] : receiver |
| 1433 | // ----------------------------------- |
| 1434 | |
| 1435 | // 1. Load target into rdi (if present), argumentsList into rax (if present), |
| 1436 | // remove all arguments from the stack (including the receiver), and push |
| 1437 | // thisArgument (if present) instead. |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1438 | { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1439 | Label done; |
| 1440 | StackArgumentsAccessor args(rsp, rax); |
| 1441 | __ LoadRoot(rdi, Heap::kUndefinedValueRootIndex); |
| 1442 | __ movp(rdx, rdi); |
| 1443 | __ movp(rbx, rdi); |
| 1444 | __ cmpp(rax, Immediate(1)); |
| 1445 | __ j(below, &done, Label::kNear); |
| 1446 | __ movp(rdi, args.GetArgumentOperand(1)); // target |
| 1447 | __ j(equal, &done, Label::kNear); |
| 1448 | __ movp(rdx, args.GetArgumentOperand(2)); // thisArgument |
| 1449 | __ cmpp(rax, Immediate(3)); |
| 1450 | __ j(below, &done, Label::kNear); |
| 1451 | __ movp(rbx, args.GetArgumentOperand(3)); // argumentsList |
| 1452 | __ bind(&done); |
| 1453 | __ PopReturnAddressTo(rcx); |
| 1454 | __ leap(rsp, Operand(rsp, rax, times_pointer_size, kPointerSize)); |
| 1455 | __ Push(rdx); |
| 1456 | __ PushReturnAddressFrom(rcx); |
| 1457 | __ movp(rax, rbx); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1458 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1459 | |
| 1460 | // ----------- S t a t e ------------- |
| 1461 | // -- rax : argumentsList |
| 1462 | // -- rdi : target |
| 1463 | // -- rsp[0] : return address |
| 1464 | // -- rsp[8] : thisArgument |
| 1465 | // ----------------------------------- |
| 1466 | |
| 1467 | // 2. Make sure the target is actually callable. |
| 1468 | Label target_not_callable; |
| 1469 | __ JumpIfSmi(rdi, &target_not_callable, Label::kNear); |
| 1470 | __ movp(rcx, FieldOperand(rdi, HeapObject::kMapOffset)); |
| 1471 | __ testb(FieldOperand(rcx, Map::kBitFieldOffset), |
| 1472 | Immediate(1 << Map::kIsCallable)); |
| 1473 | __ j(zero, &target_not_callable, Label::kNear); |
| 1474 | |
| 1475 | // 3a. Apply the target to the given argumentsList (passing undefined for |
| 1476 | // new.target). |
| 1477 | __ LoadRoot(rdx, Heap::kUndefinedValueRootIndex); |
| 1478 | __ Jump(masm->isolate()->builtins()->Apply(), RelocInfo::CODE_TARGET); |
| 1479 | |
| 1480 | // 3b. The target is not callable, throw an appropriate TypeError. |
| 1481 | __ bind(&target_not_callable); |
| 1482 | { |
| 1483 | StackArgumentsAccessor args(rsp, 0); |
| 1484 | __ movp(args.GetReceiverOperand(), rdi); |
| 1485 | __ TailCallRuntime(Runtime::kThrowApplyNonFunction); |
| 1486 | } |
| 1487 | } |
| 1488 | |
| 1489 | |
| 1490 | void Builtins::Generate_ReflectConstruct(MacroAssembler* masm) { |
| 1491 | // ----------- S t a t e ------------- |
| 1492 | // -- rax : argc |
| 1493 | // -- rsp[0] : return address |
| 1494 | // -- rsp[8] : new.target (optional) |
| 1495 | // -- rsp[16] : argumentsList |
| 1496 | // -- rsp[24] : target |
| 1497 | // -- rsp[32] : receiver |
| 1498 | // ----------------------------------- |
| 1499 | |
| 1500 | // 1. Load target into rdi (if present), argumentsList into rax (if present), |
| 1501 | // new.target into rdx (if present, otherwise use target), remove all |
| 1502 | // arguments from the stack (including the receiver), and push thisArgument |
| 1503 | // (if present) instead. |
| 1504 | { |
| 1505 | Label done; |
| 1506 | StackArgumentsAccessor args(rsp, rax); |
| 1507 | __ LoadRoot(rdi, Heap::kUndefinedValueRootIndex); |
| 1508 | __ movp(rdx, rdi); |
| 1509 | __ movp(rbx, rdi); |
| 1510 | __ cmpp(rax, Immediate(1)); |
| 1511 | __ j(below, &done, Label::kNear); |
| 1512 | __ movp(rdi, args.GetArgumentOperand(1)); // target |
| 1513 | __ movp(rdx, rdi); // new.target defaults to target |
| 1514 | __ j(equal, &done, Label::kNear); |
| 1515 | __ movp(rbx, args.GetArgumentOperand(2)); // argumentsList |
| 1516 | __ cmpp(rax, Immediate(3)); |
| 1517 | __ j(below, &done, Label::kNear); |
| 1518 | __ movp(rdx, args.GetArgumentOperand(3)); // new.target |
| 1519 | __ bind(&done); |
| 1520 | __ PopReturnAddressTo(rcx); |
| 1521 | __ leap(rsp, Operand(rsp, rax, times_pointer_size, kPointerSize)); |
| 1522 | __ PushRoot(Heap::kUndefinedValueRootIndex); |
| 1523 | __ PushReturnAddressFrom(rcx); |
| 1524 | __ movp(rax, rbx); |
| 1525 | } |
| 1526 | |
| 1527 | // ----------- S t a t e ------------- |
| 1528 | // -- rax : argumentsList |
| 1529 | // -- rdx : new.target |
| 1530 | // -- rdi : target |
| 1531 | // -- rsp[0] : return address |
| 1532 | // -- rsp[8] : receiver (undefined) |
| 1533 | // ----------------------------------- |
| 1534 | |
| 1535 | // 2. Make sure the target is actually a constructor. |
| 1536 | Label target_not_constructor; |
| 1537 | __ JumpIfSmi(rdi, &target_not_constructor, Label::kNear); |
| 1538 | __ movp(rcx, FieldOperand(rdi, HeapObject::kMapOffset)); |
| 1539 | __ testb(FieldOperand(rcx, Map::kBitFieldOffset), |
| 1540 | Immediate(1 << Map::kIsConstructor)); |
| 1541 | __ j(zero, &target_not_constructor, Label::kNear); |
| 1542 | |
| 1543 | // 3. Make sure the target is actually a constructor. |
| 1544 | Label new_target_not_constructor; |
| 1545 | __ JumpIfSmi(rdx, &new_target_not_constructor, Label::kNear); |
| 1546 | __ movp(rcx, FieldOperand(rdx, HeapObject::kMapOffset)); |
| 1547 | __ testb(FieldOperand(rcx, Map::kBitFieldOffset), |
| 1548 | Immediate(1 << Map::kIsConstructor)); |
| 1549 | __ j(zero, &new_target_not_constructor, Label::kNear); |
| 1550 | |
| 1551 | // 4a. Construct the target with the given new.target and argumentsList. |
| 1552 | __ Jump(masm->isolate()->builtins()->Apply(), RelocInfo::CODE_TARGET); |
| 1553 | |
| 1554 | // 4b. The target is not a constructor, throw an appropriate TypeError. |
| 1555 | __ bind(&target_not_constructor); |
| 1556 | { |
| 1557 | StackArgumentsAccessor args(rsp, 0); |
| 1558 | __ movp(args.GetReceiverOperand(), rdi); |
| 1559 | __ TailCallRuntime(Runtime::kThrowCalledNonCallable); |
| 1560 | } |
| 1561 | |
| 1562 | // 4c. The new.target is not a constructor, throw an appropriate TypeError. |
| 1563 | __ bind(&new_target_not_constructor); |
| 1564 | { |
| 1565 | StackArgumentsAccessor args(rsp, 0); |
| 1566 | __ movp(args.GetReceiverOperand(), rdx); |
| 1567 | __ TailCallRuntime(Runtime::kThrowCalledNonCallable); |
| 1568 | } |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1569 | } |
| 1570 | |
| 1571 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1572 | void Builtins::Generate_InternalArrayCode(MacroAssembler* masm) { |
| 1573 | // ----------- S t a t e ------------- |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1574 | // -- rax : argc |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1575 | // -- rsp[0] : return address |
| 1576 | // -- rsp[8] : last argument |
| 1577 | // ----------------------------------- |
| 1578 | Label generic_array_code; |
| 1579 | |
| 1580 | // Get the InternalArray function. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1581 | __ LoadNativeContextSlot(Context::INTERNAL_ARRAY_FUNCTION_INDEX, rdi); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1582 | |
| 1583 | if (FLAG_debug_code) { |
| 1584 | // Initial map for the builtin InternalArray functions should be maps. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1585 | __ movp(rbx, FieldOperand(rdi, JSFunction::kPrototypeOrInitialMapOffset)); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1586 | // Will both indicate a NULL and a Smi. |
| 1587 | STATIC_ASSERT(kSmiTag == 0); |
| 1588 | Condition not_smi = NegateCondition(masm->CheckSmi(rbx)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1589 | __ Check(not_smi, kUnexpectedInitialMapForInternalArrayFunction); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1590 | __ CmpObjectType(rbx, MAP_TYPE, rcx); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1591 | __ Check(equal, kUnexpectedInitialMapForInternalArrayFunction); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1592 | } |
| 1593 | |
| 1594 | // Run the native code for the InternalArray function called as a normal |
| 1595 | // function. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1596 | // tail call a stub |
| 1597 | InternalArrayConstructorStub stub(masm->isolate()); |
| 1598 | __ TailCallStub(&stub); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1599 | } |
| 1600 | |
| 1601 | |
| 1602 | void Builtins::Generate_ArrayCode(MacroAssembler* masm) { |
| 1603 | // ----------- S t a t e ------------- |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1604 | // -- rax : argc |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1605 | // -- rsp[0] : return address |
| 1606 | // -- rsp[8] : last argument |
| 1607 | // ----------------------------------- |
| 1608 | Label generic_array_code; |
| 1609 | |
| 1610 | // Get the Array function. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1611 | __ LoadNativeContextSlot(Context::ARRAY_FUNCTION_INDEX, rdi); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1612 | |
| 1613 | if (FLAG_debug_code) { |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 1614 | // Initial map for the builtin Array functions should be maps. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1615 | __ movp(rbx, FieldOperand(rdi, JSFunction::kPrototypeOrInitialMapOffset)); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1616 | // Will both indicate a NULL and a Smi. |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 1617 | STATIC_ASSERT(kSmiTag == 0); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1618 | Condition not_smi = NegateCondition(masm->CheckSmi(rbx)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1619 | __ Check(not_smi, kUnexpectedInitialMapForArrayFunction); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1620 | __ CmpObjectType(rbx, MAP_TYPE, rcx); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1621 | __ Check(equal, kUnexpectedInitialMapForArrayFunction); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1622 | } |
| 1623 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1624 | __ movp(rdx, rdi); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1625 | // 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] | 1626 | // tail call a stub |
| 1627 | __ LoadRoot(rbx, Heap::kUndefinedValueRootIndex); |
| 1628 | ArrayConstructorStub stub(masm->isolate()); |
| 1629 | __ TailCallStub(&stub); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1630 | } |
| 1631 | |
| 1632 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1633 | // static |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1634 | void Builtins::Generate_MathMaxMin(MacroAssembler* masm, MathMaxMinKind kind) { |
| 1635 | // ----------- S t a t e ------------- |
| 1636 | // -- rax : number of arguments |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 1637 | // -- rdi : function |
| 1638 | // -- rsi : context |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1639 | // -- rsp[0] : return address |
| 1640 | // -- rsp[(argc - n) * 8] : arg[n] (zero-based) |
| 1641 | // -- rsp[(argc + 1) * 8] : receiver |
| 1642 | // ----------------------------------- |
| 1643 | Condition const cc = (kind == MathMaxMinKind::kMin) ? below : above; |
| 1644 | Heap::RootListIndex const root_index = |
| 1645 | (kind == MathMaxMinKind::kMin) ? Heap::kInfinityValueRootIndex |
| 1646 | : Heap::kMinusInfinityValueRootIndex; |
| 1647 | XMMRegister const reg = (kind == MathMaxMinKind::kMin) ? xmm1 : xmm0; |
| 1648 | |
| 1649 | // Load the accumulator with the default return value (either -Infinity or |
| 1650 | // +Infinity), with the tagged value in rdx and the double value in xmm0. |
| 1651 | __ LoadRoot(rdx, root_index); |
| 1652 | __ Movsd(xmm0, FieldOperand(rdx, HeapNumber::kValueOffset)); |
| 1653 | __ Move(rcx, rax); |
| 1654 | |
| 1655 | Label done_loop, loop; |
| 1656 | __ bind(&loop); |
| 1657 | { |
| 1658 | // Check if all parameters done. |
| 1659 | __ testp(rcx, rcx); |
| 1660 | __ j(zero, &done_loop); |
| 1661 | |
| 1662 | // Load the next parameter tagged value into rbx. |
| 1663 | __ movp(rbx, Operand(rsp, rcx, times_pointer_size, 0)); |
| 1664 | |
| 1665 | // Load the double value of the parameter into xmm1, maybe converting the |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 1666 | // parameter to a number first using the ToNumber builtin if necessary. |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1667 | Label convert, convert_smi, convert_number, done_convert; |
| 1668 | __ bind(&convert); |
| 1669 | __ JumpIfSmi(rbx, &convert_smi); |
| 1670 | __ JumpIfRoot(FieldOperand(rbx, HeapObject::kMapOffset), |
| 1671 | Heap::kHeapNumberMapRootIndex, &convert_number); |
| 1672 | { |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 1673 | // Parameter is not a Number, use the ToNumber builtin to convert it. |
| 1674 | FrameScope scope(masm, StackFrame::MANUAL); |
| 1675 | __ Push(rbp); |
| 1676 | __ Move(rbp, rsp); |
| 1677 | __ Push(rsi); |
| 1678 | __ Push(rdi); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1679 | __ Integer32ToSmi(rax, rax); |
| 1680 | __ Integer32ToSmi(rcx, rcx); |
| 1681 | __ Push(rax); |
| 1682 | __ Push(rcx); |
| 1683 | __ Push(rdx); |
| 1684 | __ movp(rax, rbx); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 1685 | __ Call(masm->isolate()->builtins()->ToNumber(), RelocInfo::CODE_TARGET); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1686 | __ movp(rbx, rax); |
| 1687 | __ Pop(rdx); |
| 1688 | __ Pop(rcx); |
| 1689 | __ Pop(rax); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 1690 | __ Pop(rdi); |
| 1691 | __ Pop(rsi); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1692 | { |
| 1693 | // Restore the double accumulator value (xmm0). |
| 1694 | Label restore_smi, done_restore; |
| 1695 | __ JumpIfSmi(rdx, &restore_smi, Label::kNear); |
| 1696 | __ Movsd(xmm0, FieldOperand(rdx, HeapNumber::kValueOffset)); |
| 1697 | __ jmp(&done_restore, Label::kNear); |
| 1698 | __ bind(&restore_smi); |
| 1699 | __ SmiToDouble(xmm0, rdx); |
| 1700 | __ bind(&done_restore); |
| 1701 | } |
| 1702 | __ SmiToInteger32(rcx, rcx); |
| 1703 | __ SmiToInteger32(rax, rax); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 1704 | __ leave(); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1705 | } |
| 1706 | __ jmp(&convert); |
| 1707 | __ bind(&convert_number); |
| 1708 | __ Movsd(xmm1, FieldOperand(rbx, HeapNumber::kValueOffset)); |
| 1709 | __ jmp(&done_convert, Label::kNear); |
| 1710 | __ bind(&convert_smi); |
| 1711 | __ SmiToDouble(xmm1, rbx); |
| 1712 | __ bind(&done_convert); |
| 1713 | |
| 1714 | // Perform the actual comparison with the accumulator value on the left hand |
| 1715 | // side (xmm0) and the next parameter value on the right hand side (xmm1). |
| 1716 | Label compare_equal, compare_nan, compare_swap, done_compare; |
| 1717 | __ Ucomisd(xmm0, xmm1); |
| 1718 | __ j(parity_even, &compare_nan, Label::kNear); |
| 1719 | __ j(cc, &done_compare, Label::kNear); |
| 1720 | __ j(equal, &compare_equal, Label::kNear); |
| 1721 | |
| 1722 | // Result is on the right hand side. |
| 1723 | __ bind(&compare_swap); |
| 1724 | __ Movaps(xmm0, xmm1); |
| 1725 | __ Move(rdx, rbx); |
| 1726 | __ jmp(&done_compare, Label::kNear); |
| 1727 | |
| 1728 | // At least one side is NaN, which means that the result will be NaN too. |
| 1729 | __ bind(&compare_nan); |
| 1730 | __ LoadRoot(rdx, Heap::kNanValueRootIndex); |
| 1731 | __ Movsd(xmm0, FieldOperand(rdx, HeapNumber::kValueOffset)); |
| 1732 | __ jmp(&done_compare, Label::kNear); |
| 1733 | |
| 1734 | // Left and right hand side are equal, check for -0 vs. +0. |
| 1735 | __ bind(&compare_equal); |
| 1736 | __ Movmskpd(kScratchRegister, reg); |
| 1737 | __ testl(kScratchRegister, Immediate(1)); |
| 1738 | __ j(not_zero, &compare_swap); |
| 1739 | |
| 1740 | __ bind(&done_compare); |
| 1741 | __ decp(rcx); |
| 1742 | __ jmp(&loop); |
| 1743 | } |
| 1744 | |
| 1745 | __ bind(&done_loop); |
| 1746 | __ PopReturnAddressTo(rcx); |
| 1747 | __ leap(rsp, Operand(rsp, rax, times_pointer_size, kPointerSize)); |
| 1748 | __ PushReturnAddressFrom(rcx); |
| 1749 | __ movp(rax, rdx); |
| 1750 | __ Ret(); |
| 1751 | } |
| 1752 | |
| 1753 | // static |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1754 | void Builtins::Generate_NumberConstructor(MacroAssembler* masm) { |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1755 | // ----------- S t a t e ------------- |
| 1756 | // -- rax : number of arguments |
| 1757 | // -- rdi : constructor function |
| 1758 | // -- rsp[0] : return address |
| 1759 | // -- rsp[(argc - n) * 8] : arg[n] (zero-based) |
| 1760 | // -- rsp[(argc + 1) * 8] : receiver |
| 1761 | // ----------------------------------- |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1762 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1763 | // 1. Load the first argument into rax and get rid of the rest (including the |
| 1764 | // receiver). |
| 1765 | Label no_arguments; |
| 1766 | { |
| 1767 | StackArgumentsAccessor args(rsp, rax); |
| 1768 | __ testp(rax, rax); |
| 1769 | __ j(zero, &no_arguments, Label::kNear); |
| 1770 | __ movp(rbx, args.GetArgumentOperand(1)); |
| 1771 | __ PopReturnAddressTo(rcx); |
| 1772 | __ leap(rsp, Operand(rsp, rax, times_pointer_size, kPointerSize)); |
| 1773 | __ PushReturnAddressFrom(rcx); |
| 1774 | __ movp(rax, rbx); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1775 | } |
| 1776 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1777 | // 2a. Convert the first argument to a number. |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 1778 | __ Jump(masm->isolate()->builtins()->ToNumber(), RelocInfo::CODE_TARGET); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1779 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1780 | // 2b. No arguments, return +0 (already in rax). |
| 1781 | __ bind(&no_arguments); |
| 1782 | __ ret(1 * kPointerSize); |
| 1783 | } |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1784 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1785 | |
| 1786 | // static |
| 1787 | void Builtins::Generate_NumberConstructor_ConstructStub(MacroAssembler* masm) { |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1788 | // ----------- S t a t e ------------- |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1789 | // -- rax : number of arguments |
| 1790 | // -- rdi : constructor function |
| 1791 | // -- rdx : new target |
| 1792 | // -- rsp[0] : return address |
| 1793 | // -- rsp[(argc - n) * 8] : arg[n] (zero-based) |
| 1794 | // -- rsp[(argc + 1) * 8] : receiver |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1795 | // ----------------------------------- |
| 1796 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1797 | // 1. Make sure we operate in the context of the called function. |
| 1798 | __ movp(rsi, FieldOperand(rdi, JSFunction::kContextOffset)); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1799 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1800 | // 2. Load the first argument into rbx and get rid of the rest (including the |
| 1801 | // receiver). |
| 1802 | { |
| 1803 | StackArgumentsAccessor args(rsp, rax); |
| 1804 | Label no_arguments, done; |
| 1805 | __ testp(rax, rax); |
| 1806 | __ j(zero, &no_arguments, Label::kNear); |
| 1807 | __ movp(rbx, args.GetArgumentOperand(1)); |
| 1808 | __ jmp(&done, Label::kNear); |
| 1809 | __ bind(&no_arguments); |
| 1810 | __ Move(rbx, Smi::FromInt(0)); |
| 1811 | __ bind(&done); |
| 1812 | __ PopReturnAddressTo(rcx); |
| 1813 | __ leap(rsp, Operand(rsp, rax, times_pointer_size, kPointerSize)); |
| 1814 | __ PushReturnAddressFrom(rcx); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1815 | } |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1816 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1817 | // 3. Make sure rbx is a number. |
| 1818 | { |
| 1819 | Label done_convert; |
| 1820 | __ JumpIfSmi(rbx, &done_convert); |
| 1821 | __ CompareRoot(FieldOperand(rbx, HeapObject::kMapOffset), |
| 1822 | Heap::kHeapNumberMapRootIndex); |
| 1823 | __ j(equal, &done_convert); |
| 1824 | { |
| 1825 | FrameScope scope(masm, StackFrame::INTERNAL); |
| 1826 | __ Push(rdx); |
| 1827 | __ Push(rdi); |
| 1828 | __ Move(rax, rbx); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 1829 | __ Call(masm->isolate()->builtins()->ToNumber(), RelocInfo::CODE_TARGET); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1830 | __ Move(rbx, rax); |
| 1831 | __ Pop(rdi); |
| 1832 | __ Pop(rdx); |
| 1833 | } |
| 1834 | __ bind(&done_convert); |
| 1835 | } |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1836 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1837 | // 4. Check if new target and constructor differ. |
| 1838 | Label new_object; |
| 1839 | __ cmpp(rdx, rdi); |
| 1840 | __ j(not_equal, &new_object); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1841 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1842 | // 5. Allocate a JSValue wrapper for the number. |
| 1843 | __ AllocateJSValue(rax, rdi, rbx, rcx, &new_object); |
| 1844 | __ Ret(); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1845 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1846 | // 6. Fallback to the runtime to create new object. |
| 1847 | __ bind(&new_object); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1848 | { |
| 1849 | FrameScope scope(masm, StackFrame::INTERNAL); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1850 | __ Push(rbx); // the first argument |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1851 | FastNewObjectStub stub(masm->isolate()); |
| 1852 | __ CallStub(&stub); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1853 | __ Pop(FieldOperand(rax, JSValue::kValueOffset)); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1854 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1855 | __ Ret(); |
| 1856 | } |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1857 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1858 | |
| 1859 | // static |
| 1860 | void Builtins::Generate_StringConstructor(MacroAssembler* masm) { |
| 1861 | // ----------- S t a t e ------------- |
| 1862 | // -- rax : number of arguments |
| 1863 | // -- rdi : constructor function |
| 1864 | // -- rsp[0] : return address |
| 1865 | // -- rsp[(argc - n) * 8] : arg[n] (zero-based) |
| 1866 | // -- rsp[(argc + 1) * 8] : receiver |
| 1867 | // ----------------------------------- |
| 1868 | |
| 1869 | // 1. Load the first argument into rax and get rid of the rest (including the |
| 1870 | // receiver). |
| 1871 | Label no_arguments; |
| 1872 | { |
| 1873 | StackArgumentsAccessor args(rsp, rax); |
| 1874 | __ testp(rax, rax); |
| 1875 | __ j(zero, &no_arguments, Label::kNear); |
| 1876 | __ movp(rbx, args.GetArgumentOperand(1)); |
| 1877 | __ PopReturnAddressTo(rcx); |
| 1878 | __ leap(rsp, Operand(rsp, rax, times_pointer_size, kPointerSize)); |
| 1879 | __ PushReturnAddressFrom(rcx); |
| 1880 | __ movp(rax, rbx); |
| 1881 | } |
| 1882 | |
| 1883 | // 2a. At least one argument, return rax if it's a string, otherwise |
| 1884 | // dispatch to appropriate conversion. |
| 1885 | Label to_string, symbol_descriptive_string; |
| 1886 | { |
| 1887 | __ JumpIfSmi(rax, &to_string, Label::kNear); |
| 1888 | STATIC_ASSERT(FIRST_NONSTRING_TYPE == SYMBOL_TYPE); |
| 1889 | __ CmpObjectType(rax, FIRST_NONSTRING_TYPE, rdx); |
| 1890 | __ j(above, &to_string, Label::kNear); |
| 1891 | __ j(equal, &symbol_descriptive_string, Label::kNear); |
| 1892 | __ Ret(); |
| 1893 | } |
| 1894 | |
| 1895 | // 2b. No arguments, return the empty string (and pop the receiver). |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1896 | __ bind(&no_arguments); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1897 | { |
| 1898 | __ LoadRoot(rax, Heap::kempty_stringRootIndex); |
| 1899 | __ ret(1 * kPointerSize); |
| 1900 | } |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1901 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1902 | // 3a. Convert rax to a string. |
| 1903 | __ bind(&to_string); |
| 1904 | { |
| 1905 | ToStringStub stub(masm->isolate()); |
| 1906 | __ TailCallStub(&stub); |
| 1907 | } |
| 1908 | |
| 1909 | // 3b. Convert symbol in rax to a string. |
| 1910 | __ bind(&symbol_descriptive_string); |
| 1911 | { |
| 1912 | __ PopReturnAddressTo(rcx); |
| 1913 | __ Push(rax); |
| 1914 | __ PushReturnAddressFrom(rcx); |
| 1915 | __ TailCallRuntime(Runtime::kSymbolDescriptiveString); |
| 1916 | } |
| 1917 | } |
| 1918 | |
| 1919 | |
| 1920 | // static |
| 1921 | void Builtins::Generate_StringConstructor_ConstructStub(MacroAssembler* masm) { |
| 1922 | // ----------- S t a t e ------------- |
| 1923 | // -- rax : number of arguments |
| 1924 | // -- rdi : constructor function |
| 1925 | // -- rdx : new target |
| 1926 | // -- rsp[0] : return address |
| 1927 | // -- rsp[(argc - n) * 8] : arg[n] (zero-based) |
| 1928 | // -- rsp[(argc + 1) * 8] : receiver |
| 1929 | // ----------------------------------- |
| 1930 | |
| 1931 | // 1. Make sure we operate in the context of the called function. |
| 1932 | __ movp(rsi, FieldOperand(rdi, JSFunction::kContextOffset)); |
| 1933 | |
| 1934 | // 2. Load the first argument into rbx and get rid of the rest (including the |
| 1935 | // receiver). |
| 1936 | { |
| 1937 | StackArgumentsAccessor args(rsp, rax); |
| 1938 | Label no_arguments, done; |
| 1939 | __ testp(rax, rax); |
| 1940 | __ j(zero, &no_arguments, Label::kNear); |
| 1941 | __ movp(rbx, args.GetArgumentOperand(1)); |
| 1942 | __ jmp(&done, Label::kNear); |
| 1943 | __ bind(&no_arguments); |
| 1944 | __ LoadRoot(rbx, Heap::kempty_stringRootIndex); |
| 1945 | __ bind(&done); |
| 1946 | __ PopReturnAddressTo(rcx); |
| 1947 | __ leap(rsp, Operand(rsp, rax, times_pointer_size, kPointerSize)); |
| 1948 | __ PushReturnAddressFrom(rcx); |
| 1949 | } |
| 1950 | |
| 1951 | // 3. Make sure rbx is a string. |
| 1952 | { |
| 1953 | Label convert, done_convert; |
| 1954 | __ JumpIfSmi(rbx, &convert, Label::kNear); |
| 1955 | __ CmpObjectType(rbx, FIRST_NONSTRING_TYPE, rcx); |
| 1956 | __ j(below, &done_convert); |
| 1957 | __ bind(&convert); |
| 1958 | { |
| 1959 | FrameScope scope(masm, StackFrame::INTERNAL); |
| 1960 | ToStringStub stub(masm->isolate()); |
| 1961 | __ Push(rdx); |
| 1962 | __ Push(rdi); |
| 1963 | __ Move(rax, rbx); |
| 1964 | __ CallStub(&stub); |
| 1965 | __ Move(rbx, rax); |
| 1966 | __ Pop(rdi); |
| 1967 | __ Pop(rdx); |
| 1968 | } |
| 1969 | __ bind(&done_convert); |
| 1970 | } |
| 1971 | |
| 1972 | // 4. Check if new target and constructor differ. |
| 1973 | Label new_object; |
| 1974 | __ cmpp(rdx, rdi); |
| 1975 | __ j(not_equal, &new_object); |
| 1976 | |
| 1977 | // 5. Allocate a JSValue wrapper for the string. |
| 1978 | __ AllocateJSValue(rax, rdi, rbx, rcx, &new_object); |
| 1979 | __ Ret(); |
| 1980 | |
| 1981 | // 6. Fallback to the runtime to create new object. |
| 1982 | __ bind(&new_object); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1983 | { |
| 1984 | FrameScope scope(masm, StackFrame::INTERNAL); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1985 | __ Push(rbx); // the first argument |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1986 | FastNewObjectStub stub(masm->isolate()); |
| 1987 | __ CallStub(&stub); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1988 | __ Pop(FieldOperand(rax, JSValue::kValueOffset)); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1989 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1990 | __ Ret(); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1991 | } |
| 1992 | |
| 1993 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1994 | static void ArgumentsAdaptorStackCheck(MacroAssembler* masm, |
| 1995 | Label* stack_overflow) { |
| 1996 | // ----------- S t a t e ------------- |
| 1997 | // -- rax : actual number of arguments |
| 1998 | // -- rbx : expected number of arguments |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1999 | // -- rdx : new target (passed through to callee) |
| 2000 | // -- rdi : function (passed through to callee) |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2001 | // ----------------------------------- |
| 2002 | // Check the stack for overflow. We are not trying to catch |
| 2003 | // interruptions (e.g. debug break and preemption) here, so the "real stack |
| 2004 | // limit" is checked. |
| 2005 | Label okay; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2006 | __ LoadRoot(r8, Heap::kRealStackLimitRootIndex); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2007 | __ movp(rcx, rsp); |
| 2008 | // Make rcx the space we have left. The stack might already be overflowed |
| 2009 | // here which will cause rcx to become negative. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2010 | __ subp(rcx, r8); |
| 2011 | // 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] | 2012 | // stack. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2013 | __ movp(r8, rbx); |
| 2014 | __ shlp(r8, Immediate(kPointerSizeLog2)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2015 | // Check if the arguments will overflow the stack. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2016 | __ cmpp(rcx, r8); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2017 | __ j(less_equal, stack_overflow); // Signed comparison. |
| 2018 | } |
| 2019 | |
| 2020 | |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 2021 | static void EnterArgumentsAdaptorFrame(MacroAssembler* masm) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2022 | __ pushq(rbp); |
| 2023 | __ movp(rbp, rsp); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 2024 | |
| 2025 | // Store the arguments adaptor context sentinel. |
| 2026 | __ Push(Smi::FromInt(StackFrame::ARGUMENTS_ADAPTOR)); |
| 2027 | |
| 2028 | // Push the function on the stack. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2029 | __ Push(rdi); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 2030 | |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 2031 | // Preserve the number of arguments on the stack. Must preserve rax, |
| 2032 | // rbx and rcx because these registers are used when copying the |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 2033 | // arguments and the receiver. |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 2034 | __ Integer32ToSmi(r8, rax); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2035 | __ Push(r8); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 2036 | } |
| 2037 | |
| 2038 | |
| 2039 | static void LeaveArgumentsAdaptorFrame(MacroAssembler* masm) { |
| 2040 | // Retrieve the number of arguments from the stack. Number is a Smi. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2041 | __ movp(rbx, Operand(rbp, ArgumentsAdaptorFrameConstants::kLengthOffset)); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 2042 | |
| 2043 | // Leave the frame. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2044 | __ movp(rsp, rbp); |
| 2045 | __ popq(rbp); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 2046 | |
| 2047 | // Remove caller arguments from the stack. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2048 | __ PopReturnAddressTo(rcx); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 2049 | SmiIndex index = masm->SmiToIndex(rbx, rbx, kPointerSizeLog2); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2050 | __ leap(rsp, Operand(rsp, index.reg, index.scale, 1 * kPointerSize)); |
| 2051 | __ PushReturnAddressFrom(rcx); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 2052 | } |
| 2053 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 2054 | // static |
| 2055 | void Builtins::Generate_AllocateInNewSpace(MacroAssembler* masm) { |
| 2056 | // ----------- S t a t e ------------- |
| 2057 | // -- rdx : requested object size (untagged) |
| 2058 | // -- rsp[0] : return address |
| 2059 | // ----------------------------------- |
| 2060 | __ Integer32ToSmi(rdx, rdx); |
| 2061 | __ PopReturnAddressTo(rcx); |
| 2062 | __ Push(rdx); |
| 2063 | __ PushReturnAddressFrom(rcx); |
| 2064 | __ Move(rsi, Smi::FromInt(0)); |
| 2065 | __ TailCallRuntime(Runtime::kAllocateInNewSpace); |
| 2066 | } |
| 2067 | |
| 2068 | // static |
| 2069 | void Builtins::Generate_AllocateInOldSpace(MacroAssembler* masm) { |
| 2070 | // ----------- S t a t e ------------- |
| 2071 | // -- rdx : requested object size (untagged) |
| 2072 | // -- rsp[0] : return address |
| 2073 | // ----------------------------------- |
| 2074 | __ Integer32ToSmi(rdx, rdx); |
| 2075 | __ PopReturnAddressTo(rcx); |
| 2076 | __ Push(rdx); |
| 2077 | __ Push(Smi::FromInt(AllocateTargetSpace::encode(OLD_SPACE))); |
| 2078 | __ PushReturnAddressFrom(rcx); |
| 2079 | __ Move(rsi, Smi::FromInt(0)); |
| 2080 | __ TailCallRuntime(Runtime::kAllocateInTargetSpace); |
| 2081 | } |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 2082 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 2083 | void Builtins::Generate_StringToNumber(MacroAssembler* masm) { |
| 2084 | // The StringToNumber stub takes one argument in rax. |
| 2085 | __ AssertString(rax); |
| 2086 | |
| 2087 | // Check if string has a cached array index. |
| 2088 | Label runtime; |
| 2089 | __ testl(FieldOperand(rax, String::kHashFieldOffset), |
| 2090 | Immediate(String::kContainsCachedArrayIndexMask)); |
| 2091 | __ j(not_zero, &runtime, Label::kNear); |
| 2092 | __ movl(rax, FieldOperand(rax, String::kHashFieldOffset)); |
| 2093 | __ IndexFromHash(rax, rax); |
| 2094 | __ Ret(); |
| 2095 | |
| 2096 | __ bind(&runtime); |
| 2097 | { |
| 2098 | FrameScope frame(masm, StackFrame::INTERNAL); |
| 2099 | // Push argument. |
| 2100 | __ Push(rax); |
| 2101 | // We cannot use a tail call here because this builtin can also be called |
| 2102 | // from wasm. |
| 2103 | __ CallRuntime(Runtime::kStringToNumber); |
| 2104 | } |
| 2105 | __ Ret(); |
| 2106 | } |
| 2107 | |
| 2108 | // static |
| 2109 | void Builtins::Generate_ToNumber(MacroAssembler* masm) { |
| 2110 | // The ToNumber stub takes one argument in rax. |
| 2111 | Label not_smi; |
| 2112 | __ JumpIfNotSmi(rax, ¬_smi, Label::kNear); |
| 2113 | __ Ret(); |
| 2114 | __ bind(¬_smi); |
| 2115 | |
| 2116 | Label not_heap_number; |
| 2117 | __ CompareRoot(FieldOperand(rax, HeapObject::kMapOffset), |
| 2118 | Heap::kHeapNumberMapRootIndex); |
| 2119 | __ j(not_equal, ¬_heap_number, Label::kNear); |
| 2120 | __ Ret(); |
| 2121 | __ bind(¬_heap_number); |
| 2122 | |
| 2123 | __ Jump(masm->isolate()->builtins()->NonNumberToNumber(), |
| 2124 | RelocInfo::CODE_TARGET); |
| 2125 | } |
| 2126 | |
| 2127 | // static |
| 2128 | void Builtins::Generate_NonNumberToNumber(MacroAssembler* masm) { |
| 2129 | // The NonNumberToNumber stub takes one argument in rax. |
| 2130 | __ AssertNotNumber(rax); |
| 2131 | |
| 2132 | Label not_string; |
| 2133 | __ CmpObjectType(rax, FIRST_NONSTRING_TYPE, rdi); |
| 2134 | // rax: object |
| 2135 | // rdi: object map |
| 2136 | __ j(above_equal, ¬_string, Label::kNear); |
| 2137 | __ Jump(masm->isolate()->builtins()->StringToNumber(), |
| 2138 | RelocInfo::CODE_TARGET); |
| 2139 | __ bind(¬_string); |
| 2140 | |
| 2141 | Label not_oddball; |
| 2142 | __ CmpInstanceType(rdi, ODDBALL_TYPE); |
| 2143 | __ j(not_equal, ¬_oddball, Label::kNear); |
| 2144 | __ movp(rax, FieldOperand(rax, Oddball::kToNumberOffset)); |
| 2145 | __ Ret(); |
| 2146 | __ bind(¬_oddball); |
| 2147 | { |
| 2148 | FrameScope frame(masm, StackFrame::INTERNAL); |
| 2149 | // Push argument. |
| 2150 | __ Push(rax); |
| 2151 | // We cannot use a tail call here because this builtin can also be called |
| 2152 | // from wasm. |
| 2153 | __ CallRuntime(Runtime::kToNumber); |
| 2154 | } |
| 2155 | __ Ret(); |
| 2156 | } |
| 2157 | |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 2158 | void Builtins::Generate_ArgumentsAdaptorTrampoline(MacroAssembler* masm) { |
| 2159 | // ----------- S t a t e ------------- |
| 2160 | // -- rax : actual number of arguments |
| 2161 | // -- rbx : expected number of arguments |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2162 | // -- rdx : new target (passed through to callee) |
| 2163 | // -- rdi : function (passed through to callee) |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 2164 | // ----------------------------------- |
| 2165 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2166 | Label invoke, dont_adapt_arguments, stack_overflow; |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 2167 | Counters* counters = masm->isolate()->counters(); |
| 2168 | __ IncrementCounter(counters->arguments_adaptors(), 1); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 2169 | |
| 2170 | Label enough, too_few; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2171 | __ cmpp(rax, rbx); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 2172 | __ j(less, &too_few); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2173 | __ cmpp(rbx, Immediate(SharedFunctionInfo::kDontAdaptArgumentsSentinel)); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 2174 | __ j(equal, &dont_adapt_arguments); |
| 2175 | |
| 2176 | { // Enough parameters: Actual >= expected. |
| 2177 | __ bind(&enough); |
| 2178 | EnterArgumentsAdaptorFrame(masm); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2179 | ArgumentsAdaptorStackCheck(masm, &stack_overflow); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 2180 | |
| 2181 | // Copy receiver and all expected arguments. |
| 2182 | const int offset = StandardFrameConstants::kCallerSPOffset; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2183 | __ leap(rax, Operand(rbp, rax, times_pointer_size, offset)); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 2184 | __ Set(r8, -1); // account for receiver |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 2185 | |
| 2186 | Label copy; |
| 2187 | __ bind(©); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2188 | __ incp(r8); |
| 2189 | __ Push(Operand(rax, 0)); |
| 2190 | __ subp(rax, Immediate(kPointerSize)); |
| 2191 | __ cmpp(r8, rbx); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 2192 | __ j(less, ©); |
| 2193 | __ jmp(&invoke); |
| 2194 | } |
| 2195 | |
| 2196 | { // Too few parameters: Actual < expected. |
| 2197 | __ bind(&too_few); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2198 | |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 2199 | EnterArgumentsAdaptorFrame(masm); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2200 | ArgumentsAdaptorStackCheck(masm, &stack_overflow); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 2201 | |
| 2202 | // Copy receiver and all actual arguments. |
| 2203 | const int offset = StandardFrameConstants::kCallerSPOffset; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2204 | __ leap(rdi, Operand(rbp, rax, times_pointer_size, offset)); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 2205 | __ Set(r8, -1); // account for receiver |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 2206 | |
| 2207 | Label copy; |
| 2208 | __ bind(©); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2209 | __ incp(r8); |
| 2210 | __ Push(Operand(rdi, 0)); |
| 2211 | __ subp(rdi, Immediate(kPointerSize)); |
| 2212 | __ cmpp(r8, rax); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 2213 | __ j(less, ©); |
| 2214 | |
| 2215 | // Fill remaining expected arguments with undefined values. |
| 2216 | Label fill; |
| 2217 | __ LoadRoot(kScratchRegister, Heap::kUndefinedValueRootIndex); |
| 2218 | __ bind(&fill); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2219 | __ incp(r8); |
| 2220 | __ Push(kScratchRegister); |
| 2221 | __ cmpp(r8, rbx); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 2222 | __ j(less, &fill); |
| 2223 | |
| 2224 | // Restore function pointer. |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 2225 | __ movp(rdi, Operand(rbp, ArgumentsAdaptorFrameConstants::kFunctionOffset)); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 2226 | } |
| 2227 | |
| 2228 | // Call the entry point. |
| 2229 | __ bind(&invoke); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2230 | __ movp(rax, rbx); |
| 2231 | // rax : expected number of arguments |
| 2232 | // rdx : new target (passed through to callee) |
| 2233 | // rdi : function (passed through to callee) |
| 2234 | __ movp(rcx, FieldOperand(rdi, JSFunction::kCodeEntryOffset)); |
| 2235 | __ call(rcx); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 2236 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 2237 | // Store offset of return address for deoptimizer. |
| 2238 | masm->isolate()->heap()->SetArgumentsAdaptorDeoptPCOffset(masm->pc_offset()); |
| 2239 | |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 2240 | // Leave frame and return. |
| 2241 | LeaveArgumentsAdaptorFrame(masm); |
| 2242 | __ ret(0); |
| 2243 | |
| 2244 | // ------------------------------------------- |
| 2245 | // Dont adapt arguments. |
| 2246 | // ------------------------------------------- |
| 2247 | __ bind(&dont_adapt_arguments); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2248 | __ movp(rcx, FieldOperand(rdi, JSFunction::kCodeEntryOffset)); |
| 2249 | __ jmp(rcx); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2250 | |
| 2251 | __ bind(&stack_overflow); |
| 2252 | { |
| 2253 | FrameScope frame(masm, StackFrame::MANUAL); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2254 | __ CallRuntime(Runtime::kThrowStackOverflow); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2255 | __ int3(); |
| 2256 | } |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 2257 | } |
| 2258 | |
| 2259 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2260 | // static |
| 2261 | void Builtins::Generate_Apply(MacroAssembler* masm) { |
| 2262 | // ----------- S t a t e ------------- |
| 2263 | // -- rax : argumentsList |
| 2264 | // -- rdi : target |
| 2265 | // -- rdx : new.target (checked to be constructor or undefined) |
| 2266 | // -- rsp[0] : return address. |
| 2267 | // -- rsp[8] : thisArgument |
| 2268 | // ----------------------------------- |
| 2269 | |
| 2270 | // Create the list of arguments from the array-like argumentsList. |
| 2271 | { |
| 2272 | Label create_arguments, create_array, create_runtime, done_create; |
| 2273 | __ JumpIfSmi(rax, &create_runtime); |
| 2274 | |
| 2275 | // Load the map of argumentsList into rcx. |
| 2276 | __ movp(rcx, FieldOperand(rax, HeapObject::kMapOffset)); |
| 2277 | |
| 2278 | // Load native context into rbx. |
| 2279 | __ movp(rbx, NativeContextOperand()); |
| 2280 | |
| 2281 | // Check if argumentsList is an (unmodified) arguments object. |
| 2282 | __ cmpp(rcx, ContextOperand(rbx, Context::SLOPPY_ARGUMENTS_MAP_INDEX)); |
| 2283 | __ j(equal, &create_arguments); |
| 2284 | __ cmpp(rcx, ContextOperand(rbx, Context::STRICT_ARGUMENTS_MAP_INDEX)); |
| 2285 | __ j(equal, &create_arguments); |
| 2286 | |
| 2287 | // Check if argumentsList is a fast JSArray. |
| 2288 | __ CmpInstanceType(rcx, JS_ARRAY_TYPE); |
| 2289 | __ j(equal, &create_array); |
| 2290 | |
| 2291 | // Ask the runtime to create the list (actually a FixedArray). |
| 2292 | __ bind(&create_runtime); |
| 2293 | { |
| 2294 | FrameScope scope(masm, StackFrame::INTERNAL); |
| 2295 | __ Push(rdi); |
| 2296 | __ Push(rdx); |
| 2297 | __ Push(rax); |
| 2298 | __ CallRuntime(Runtime::kCreateListFromArrayLike); |
| 2299 | __ Pop(rdx); |
| 2300 | __ Pop(rdi); |
| 2301 | __ SmiToInteger32(rbx, FieldOperand(rax, FixedArray::kLengthOffset)); |
| 2302 | } |
| 2303 | __ jmp(&done_create); |
| 2304 | |
| 2305 | // Try to create the list from an arguments object. |
| 2306 | __ bind(&create_arguments); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2307 | __ movp(rbx, FieldOperand(rax, JSArgumentsObject::kLengthOffset)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2308 | __ movp(rcx, FieldOperand(rax, JSObject::kElementsOffset)); |
| 2309 | __ cmpp(rbx, FieldOperand(rcx, FixedArray::kLengthOffset)); |
| 2310 | __ j(not_equal, &create_runtime); |
| 2311 | __ SmiToInteger32(rbx, rbx); |
| 2312 | __ movp(rax, rcx); |
| 2313 | __ jmp(&done_create); |
| 2314 | |
| 2315 | // Try to create the list from a JSArray object. |
| 2316 | __ bind(&create_array); |
| 2317 | __ movzxbp(rcx, FieldOperand(rcx, Map::kBitField2Offset)); |
| 2318 | __ DecodeField<Map::ElementsKindBits>(rcx); |
| 2319 | STATIC_ASSERT(FAST_SMI_ELEMENTS == 0); |
| 2320 | STATIC_ASSERT(FAST_HOLEY_SMI_ELEMENTS == 1); |
| 2321 | STATIC_ASSERT(FAST_ELEMENTS == 2); |
| 2322 | __ cmpl(rcx, Immediate(FAST_ELEMENTS)); |
| 2323 | __ j(above, &create_runtime); |
| 2324 | __ cmpl(rcx, Immediate(FAST_HOLEY_SMI_ELEMENTS)); |
| 2325 | __ j(equal, &create_runtime); |
| 2326 | __ SmiToInteger32(rbx, FieldOperand(rax, JSArray::kLengthOffset)); |
| 2327 | __ movp(rax, FieldOperand(rax, JSArray::kElementsOffset)); |
| 2328 | |
| 2329 | __ bind(&done_create); |
| 2330 | } |
| 2331 | |
| 2332 | // Check for stack overflow. |
| 2333 | { |
| 2334 | // Check the stack for overflow. We are not trying to catch interruptions |
| 2335 | // (i.e. debug break and preemption) here, so check the "real stack limit". |
| 2336 | Label done; |
| 2337 | __ LoadRoot(kScratchRegister, Heap::kRealStackLimitRootIndex); |
| 2338 | __ movp(rcx, rsp); |
| 2339 | // Make rcx the space we have left. The stack might already be overflowed |
| 2340 | // here which will cause rcx to become negative. |
| 2341 | __ subp(rcx, kScratchRegister); |
| 2342 | __ sarp(rcx, Immediate(kPointerSizeLog2)); |
| 2343 | // Check if the arguments will overflow the stack. |
| 2344 | __ cmpp(rcx, rbx); |
| 2345 | __ j(greater, &done, Label::kNear); // Signed comparison. |
| 2346 | __ TailCallRuntime(Runtime::kThrowStackOverflow); |
| 2347 | __ bind(&done); |
| 2348 | } |
| 2349 | |
| 2350 | // ----------- S t a t e ------------- |
| 2351 | // -- rdi : target |
| 2352 | // -- rax : args (a FixedArray built from argumentsList) |
| 2353 | // -- rbx : len (number of elements to push from args) |
| 2354 | // -- rdx : new.target (checked to be constructor or undefined) |
| 2355 | // -- rsp[0] : return address. |
| 2356 | // -- rsp[8] : thisArgument |
| 2357 | // ----------------------------------- |
| 2358 | |
| 2359 | // Push arguments onto the stack (thisArgument is already on the stack). |
| 2360 | { |
| 2361 | __ PopReturnAddressTo(r8); |
| 2362 | __ Set(rcx, 0); |
| 2363 | Label done, loop; |
| 2364 | __ bind(&loop); |
| 2365 | __ cmpl(rcx, rbx); |
| 2366 | __ j(equal, &done, Label::kNear); |
| 2367 | __ Push( |
| 2368 | FieldOperand(rax, rcx, times_pointer_size, FixedArray::kHeaderSize)); |
| 2369 | __ incl(rcx); |
| 2370 | __ jmp(&loop); |
| 2371 | __ bind(&done); |
| 2372 | __ PushReturnAddressFrom(r8); |
| 2373 | __ Move(rax, rcx); |
| 2374 | } |
| 2375 | |
| 2376 | // Dispatch to Call or Construct depending on whether new.target is undefined. |
| 2377 | { |
| 2378 | __ CompareRoot(rdx, Heap::kUndefinedValueRootIndex); |
| 2379 | __ j(equal, masm->isolate()->builtins()->Call(), RelocInfo::CODE_TARGET); |
| 2380 | __ Jump(masm->isolate()->builtins()->Construct(), RelocInfo::CODE_TARGET); |
| 2381 | } |
| 2382 | } |
| 2383 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2384 | namespace { |
| 2385 | |
| 2386 | // Drops top JavaScript frame and an arguments adaptor frame below it (if |
| 2387 | // present) preserving all the arguments prepared for current call. |
| 2388 | // Does nothing if debugger is currently active. |
| 2389 | // ES6 14.6.3. PrepareForTailCall |
| 2390 | // |
| 2391 | // Stack structure for the function g() tail calling f(): |
| 2392 | // |
| 2393 | // ------- Caller frame: ------- |
| 2394 | // | ... |
| 2395 | // | g()'s arg M |
| 2396 | // | ... |
| 2397 | // | g()'s arg 1 |
| 2398 | // | g()'s receiver arg |
| 2399 | // | g()'s caller pc |
| 2400 | // ------- g()'s frame: ------- |
| 2401 | // | g()'s caller fp <- fp |
| 2402 | // | g()'s context |
| 2403 | // | function pointer: g |
| 2404 | // | ------------------------- |
| 2405 | // | ... |
| 2406 | // | ... |
| 2407 | // | f()'s arg N |
| 2408 | // | ... |
| 2409 | // | f()'s arg 1 |
| 2410 | // | f()'s receiver arg |
| 2411 | // | f()'s caller pc <- sp |
| 2412 | // ---------------------- |
| 2413 | // |
| 2414 | void PrepareForTailCall(MacroAssembler* masm, Register args_reg, |
| 2415 | Register scratch1, Register scratch2, |
| 2416 | Register scratch3) { |
| 2417 | DCHECK(!AreAliased(args_reg, scratch1, scratch2, scratch3)); |
| 2418 | Comment cmnt(masm, "[ PrepareForTailCall"); |
| 2419 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 2420 | // Prepare for tail call only if ES2015 tail call elimination is active. |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2421 | Label done; |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 2422 | ExternalReference is_tail_call_elimination_enabled = |
| 2423 | ExternalReference::is_tail_call_elimination_enabled_address( |
| 2424 | masm->isolate()); |
| 2425 | __ Move(kScratchRegister, is_tail_call_elimination_enabled); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2426 | __ cmpb(Operand(kScratchRegister, 0), Immediate(0)); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 2427 | __ j(equal, &done); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2428 | |
| 2429 | // Drop possible interpreter handler/stub frame. |
| 2430 | { |
| 2431 | Label no_interpreter_frame; |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 2432 | __ Cmp(Operand(rbp, CommonFrameConstants::kContextOrFrameTypeOffset), |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2433 | Smi::FromInt(StackFrame::STUB)); |
| 2434 | __ j(not_equal, &no_interpreter_frame, Label::kNear); |
| 2435 | __ movp(rbp, Operand(rbp, StandardFrameConstants::kCallerFPOffset)); |
| 2436 | __ bind(&no_interpreter_frame); |
| 2437 | } |
| 2438 | |
| 2439 | // Check if next frame is an arguments adaptor frame. |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 2440 | Register caller_args_count_reg = scratch1; |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2441 | Label no_arguments_adaptor, formal_parameter_count_loaded; |
| 2442 | __ movp(scratch2, Operand(rbp, StandardFrameConstants::kCallerFPOffset)); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 2443 | __ Cmp(Operand(scratch2, CommonFrameConstants::kContextOrFrameTypeOffset), |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2444 | Smi::FromInt(StackFrame::ARGUMENTS_ADAPTOR)); |
| 2445 | __ j(not_equal, &no_arguments_adaptor, Label::kNear); |
| 2446 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 2447 | // Drop current frame and load arguments count from arguments adaptor frame. |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2448 | __ movp(rbp, scratch2); |
| 2449 | __ SmiToInteger32( |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 2450 | caller_args_count_reg, |
| 2451 | Operand(rbp, ArgumentsAdaptorFrameConstants::kLengthOffset)); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2452 | __ jmp(&formal_parameter_count_loaded, Label::kNear); |
| 2453 | |
| 2454 | __ bind(&no_arguments_adaptor); |
| 2455 | // Load caller's formal parameter count |
| 2456 | __ movp(scratch1, Operand(rbp, JavaScriptFrameConstants::kFunctionOffset)); |
| 2457 | __ movp(scratch1, |
| 2458 | FieldOperand(scratch1, JSFunction::kSharedFunctionInfoOffset)); |
| 2459 | __ LoadSharedFunctionInfoSpecialField( |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 2460 | caller_args_count_reg, scratch1, |
| 2461 | SharedFunctionInfo::kFormalParameterCountOffset); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2462 | |
| 2463 | __ bind(&formal_parameter_count_loaded); |
| 2464 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 2465 | ParameterCount callee_args_count(args_reg); |
| 2466 | __ PrepareForTailCall(callee_args_count, caller_args_count_reg, scratch2, |
| 2467 | scratch3, ReturnAddressState::kOnStack); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2468 | __ bind(&done); |
| 2469 | } |
| 2470 | } // namespace |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2471 | |
| 2472 | // static |
| 2473 | void Builtins::Generate_CallFunction(MacroAssembler* masm, |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2474 | ConvertReceiverMode mode, |
| 2475 | TailCallMode tail_call_mode) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2476 | // ----------- S t a t e ------------- |
| 2477 | // -- rax : the number of arguments (not including the receiver) |
| 2478 | // -- rdi : the function to call (checked to be a JSFunction) |
| 2479 | // ----------------------------------- |
| 2480 | StackArgumentsAccessor args(rsp, rax); |
| 2481 | __ AssertFunction(rdi); |
| 2482 | |
| 2483 | // ES6 section 9.2.1 [[Call]] ( thisArgument, argumentsList) |
| 2484 | // Check that the function is not a "classConstructor". |
| 2485 | Label class_constructor; |
| 2486 | __ movp(rdx, FieldOperand(rdi, JSFunction::kSharedFunctionInfoOffset)); |
| 2487 | __ testb(FieldOperand(rdx, SharedFunctionInfo::kFunctionKindByteOffset), |
| 2488 | Immediate(SharedFunctionInfo::kClassConstructorBitsWithinByte)); |
| 2489 | __ j(not_zero, &class_constructor); |
| 2490 | |
| 2491 | // ----------- S t a t e ------------- |
| 2492 | // -- rax : the number of arguments (not including the receiver) |
| 2493 | // -- rdx : the shared function info. |
| 2494 | // -- rdi : the function to call (checked to be a JSFunction) |
| 2495 | // ----------------------------------- |
| 2496 | |
| 2497 | // Enter the context of the function; ToObject has to run in the function |
| 2498 | // context, and we also need to take the global proxy from the function |
| 2499 | // context in case of conversion. |
| 2500 | STATIC_ASSERT(SharedFunctionInfo::kNativeByteOffset == |
| 2501 | SharedFunctionInfo::kStrictModeByteOffset); |
| 2502 | __ movp(rsi, FieldOperand(rdi, JSFunction::kContextOffset)); |
| 2503 | // We need to convert the receiver for non-native sloppy mode functions. |
| 2504 | Label done_convert; |
| 2505 | __ testb(FieldOperand(rdx, SharedFunctionInfo::kNativeByteOffset), |
| 2506 | Immediate((1 << SharedFunctionInfo::kNativeBitWithinByte) | |
| 2507 | (1 << SharedFunctionInfo::kStrictModeBitWithinByte))); |
| 2508 | __ j(not_zero, &done_convert); |
| 2509 | { |
| 2510 | // ----------- S t a t e ------------- |
| 2511 | // -- rax : the number of arguments (not including the receiver) |
| 2512 | // -- rdx : the shared function info. |
| 2513 | // -- rdi : the function to call (checked to be a JSFunction) |
| 2514 | // -- rsi : the function context. |
| 2515 | // ----------------------------------- |
| 2516 | |
| 2517 | if (mode == ConvertReceiverMode::kNullOrUndefined) { |
| 2518 | // Patch receiver to global proxy. |
| 2519 | __ LoadGlobalProxy(rcx); |
| 2520 | } else { |
| 2521 | Label convert_to_object, convert_receiver; |
| 2522 | __ movp(rcx, args.GetReceiverOperand()); |
| 2523 | __ JumpIfSmi(rcx, &convert_to_object, Label::kNear); |
| 2524 | STATIC_ASSERT(LAST_JS_RECEIVER_TYPE == LAST_TYPE); |
| 2525 | __ CmpObjectType(rcx, FIRST_JS_RECEIVER_TYPE, rbx); |
| 2526 | __ j(above_equal, &done_convert); |
| 2527 | if (mode != ConvertReceiverMode::kNotNullOrUndefined) { |
| 2528 | Label convert_global_proxy; |
| 2529 | __ JumpIfRoot(rcx, Heap::kUndefinedValueRootIndex, |
| 2530 | &convert_global_proxy, Label::kNear); |
| 2531 | __ JumpIfNotRoot(rcx, Heap::kNullValueRootIndex, &convert_to_object, |
| 2532 | Label::kNear); |
| 2533 | __ bind(&convert_global_proxy); |
| 2534 | { |
| 2535 | // Patch receiver to global proxy. |
| 2536 | __ LoadGlobalProxy(rcx); |
| 2537 | } |
| 2538 | __ jmp(&convert_receiver); |
| 2539 | } |
| 2540 | __ bind(&convert_to_object); |
| 2541 | { |
| 2542 | // Convert receiver using ToObject. |
| 2543 | // TODO(bmeurer): Inline the allocation here to avoid building the frame |
| 2544 | // in the fast case? (fall back to AllocateInNewSpace?) |
| 2545 | FrameScope scope(masm, StackFrame::INTERNAL); |
| 2546 | __ Integer32ToSmi(rax, rax); |
| 2547 | __ Push(rax); |
| 2548 | __ Push(rdi); |
| 2549 | __ movp(rax, rcx); |
| 2550 | ToObjectStub stub(masm->isolate()); |
| 2551 | __ CallStub(&stub); |
| 2552 | __ movp(rcx, rax); |
| 2553 | __ Pop(rdi); |
| 2554 | __ Pop(rax); |
| 2555 | __ SmiToInteger32(rax, rax); |
| 2556 | } |
| 2557 | __ movp(rdx, FieldOperand(rdi, JSFunction::kSharedFunctionInfoOffset)); |
| 2558 | __ bind(&convert_receiver); |
| 2559 | } |
| 2560 | __ movp(args.GetReceiverOperand(), rcx); |
| 2561 | } |
| 2562 | __ bind(&done_convert); |
| 2563 | |
| 2564 | // ----------- S t a t e ------------- |
| 2565 | // -- rax : the number of arguments (not including the receiver) |
| 2566 | // -- rdx : the shared function info. |
| 2567 | // -- rdi : the function to call (checked to be a JSFunction) |
| 2568 | // -- rsi : the function context. |
| 2569 | // ----------------------------------- |
| 2570 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2571 | if (tail_call_mode == TailCallMode::kAllow) { |
| 2572 | PrepareForTailCall(masm, rax, rbx, rcx, r8); |
| 2573 | } |
| 2574 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2575 | __ LoadSharedFunctionInfoSpecialField( |
| 2576 | rbx, rdx, SharedFunctionInfo::kFormalParameterCountOffset); |
| 2577 | ParameterCount actual(rax); |
| 2578 | ParameterCount expected(rbx); |
| 2579 | |
| 2580 | __ InvokeFunctionCode(rdi, no_reg, expected, actual, JUMP_FUNCTION, |
| 2581 | CheckDebugStepCallWrapper()); |
| 2582 | |
| 2583 | // The function is a "classConstructor", need to raise an exception. |
| 2584 | __ bind(&class_constructor); |
| 2585 | { |
| 2586 | FrameScope frame(masm, StackFrame::INTERNAL); |
| 2587 | __ Push(rdi); |
| 2588 | __ CallRuntime(Runtime::kThrowConstructorNonCallableError); |
| 2589 | } |
| 2590 | } |
| 2591 | |
| 2592 | |
| 2593 | namespace { |
| 2594 | |
| 2595 | void Generate_PushBoundArguments(MacroAssembler* masm) { |
| 2596 | // ----------- S t a t e ------------- |
| 2597 | // -- rax : the number of arguments (not including the receiver) |
| 2598 | // -- rdx : new.target (only in case of [[Construct]]) |
| 2599 | // -- rdi : target (checked to be a JSBoundFunction) |
| 2600 | // ----------------------------------- |
| 2601 | |
| 2602 | // Load [[BoundArguments]] into rcx and length of that into rbx. |
| 2603 | Label no_bound_arguments; |
| 2604 | __ movp(rcx, FieldOperand(rdi, JSBoundFunction::kBoundArgumentsOffset)); |
| 2605 | __ SmiToInteger32(rbx, FieldOperand(rcx, FixedArray::kLengthOffset)); |
| 2606 | __ testl(rbx, rbx); |
| 2607 | __ j(zero, &no_bound_arguments); |
| 2608 | { |
| 2609 | // ----------- S t a t e ------------- |
| 2610 | // -- rax : the number of arguments (not including the receiver) |
| 2611 | // -- rdx : new.target (only in case of [[Construct]]) |
| 2612 | // -- rdi : target (checked to be a JSBoundFunction) |
| 2613 | // -- rcx : the [[BoundArguments]] (implemented as FixedArray) |
| 2614 | // -- rbx : the number of [[BoundArguments]] (checked to be non-zero) |
| 2615 | // ----------------------------------- |
| 2616 | |
| 2617 | // Reserve stack space for the [[BoundArguments]]. |
| 2618 | { |
| 2619 | Label done; |
| 2620 | __ leap(kScratchRegister, Operand(rbx, times_pointer_size, 0)); |
| 2621 | __ subp(rsp, kScratchRegister); |
| 2622 | // Check the stack for overflow. We are not trying to catch interruptions |
| 2623 | // (i.e. debug break and preemption) here, so check the "real stack |
| 2624 | // limit". |
| 2625 | __ CompareRoot(rsp, Heap::kRealStackLimitRootIndex); |
| 2626 | __ j(greater, &done, Label::kNear); // Signed comparison. |
| 2627 | // Restore the stack pointer. |
| 2628 | __ leap(rsp, Operand(rsp, rbx, times_pointer_size, 0)); |
| 2629 | { |
| 2630 | FrameScope scope(masm, StackFrame::MANUAL); |
| 2631 | __ EnterFrame(StackFrame::INTERNAL); |
| 2632 | __ CallRuntime(Runtime::kThrowStackOverflow); |
| 2633 | } |
| 2634 | __ bind(&done); |
| 2635 | } |
| 2636 | |
| 2637 | // Adjust effective number of arguments to include return address. |
| 2638 | __ incl(rax); |
| 2639 | |
| 2640 | // Relocate arguments and return address down the stack. |
| 2641 | { |
| 2642 | Label loop; |
| 2643 | __ Set(rcx, 0); |
| 2644 | __ leap(rbx, Operand(rsp, rbx, times_pointer_size, 0)); |
| 2645 | __ bind(&loop); |
| 2646 | __ movp(kScratchRegister, Operand(rbx, rcx, times_pointer_size, 0)); |
| 2647 | __ movp(Operand(rsp, rcx, times_pointer_size, 0), kScratchRegister); |
| 2648 | __ incl(rcx); |
| 2649 | __ cmpl(rcx, rax); |
| 2650 | __ j(less, &loop); |
| 2651 | } |
| 2652 | |
| 2653 | // Copy [[BoundArguments]] to the stack (below the arguments). |
| 2654 | { |
| 2655 | Label loop; |
| 2656 | __ movp(rcx, FieldOperand(rdi, JSBoundFunction::kBoundArgumentsOffset)); |
| 2657 | __ SmiToInteger32(rbx, FieldOperand(rcx, FixedArray::kLengthOffset)); |
| 2658 | __ bind(&loop); |
| 2659 | __ decl(rbx); |
| 2660 | __ movp(kScratchRegister, FieldOperand(rcx, rbx, times_pointer_size, |
| 2661 | FixedArray::kHeaderSize)); |
| 2662 | __ movp(Operand(rsp, rax, times_pointer_size, 0), kScratchRegister); |
| 2663 | __ leal(rax, Operand(rax, 1)); |
| 2664 | __ j(greater, &loop); |
| 2665 | } |
| 2666 | |
| 2667 | // Adjust effective number of arguments (rax contains the number of |
| 2668 | // arguments from the call plus return address plus the number of |
| 2669 | // [[BoundArguments]]), so we need to subtract one for the return address. |
| 2670 | __ decl(rax); |
| 2671 | } |
| 2672 | __ bind(&no_bound_arguments); |
| 2673 | } |
| 2674 | |
| 2675 | } // namespace |
| 2676 | |
| 2677 | |
| 2678 | // static |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2679 | void Builtins::Generate_CallBoundFunctionImpl(MacroAssembler* masm, |
| 2680 | TailCallMode tail_call_mode) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2681 | // ----------- S t a t e ------------- |
| 2682 | // -- rax : the number of arguments (not including the receiver) |
| 2683 | // -- rdi : the function to call (checked to be a JSBoundFunction) |
| 2684 | // ----------------------------------- |
| 2685 | __ AssertBoundFunction(rdi); |
| 2686 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2687 | if (tail_call_mode == TailCallMode::kAllow) { |
| 2688 | PrepareForTailCall(masm, rax, rbx, rcx, r8); |
| 2689 | } |
| 2690 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2691 | // Patch the receiver to [[BoundThis]]. |
| 2692 | StackArgumentsAccessor args(rsp, rax); |
| 2693 | __ movp(rbx, FieldOperand(rdi, JSBoundFunction::kBoundThisOffset)); |
| 2694 | __ movp(args.GetReceiverOperand(), rbx); |
| 2695 | |
| 2696 | // Push the [[BoundArguments]] onto the stack. |
| 2697 | Generate_PushBoundArguments(masm); |
| 2698 | |
| 2699 | // Call the [[BoundTargetFunction]] via the Call builtin. |
| 2700 | __ movp(rdi, FieldOperand(rdi, JSBoundFunction::kBoundTargetFunctionOffset)); |
| 2701 | __ Load(rcx, |
| 2702 | ExternalReference(Builtins::kCall_ReceiverIsAny, masm->isolate())); |
| 2703 | __ leap(rcx, FieldOperand(rcx, Code::kHeaderSize)); |
| 2704 | __ jmp(rcx); |
| 2705 | } |
| 2706 | |
| 2707 | |
| 2708 | // static |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2709 | void Builtins::Generate_Call(MacroAssembler* masm, ConvertReceiverMode mode, |
| 2710 | TailCallMode tail_call_mode) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2711 | // ----------- S t a t e ------------- |
| 2712 | // -- rax : the number of arguments (not including the receiver) |
| 2713 | // -- rdi : the target to call (can be any Object) |
| 2714 | // ----------------------------------- |
| 2715 | StackArgumentsAccessor args(rsp, rax); |
| 2716 | |
| 2717 | Label non_callable, non_function, non_smi; |
| 2718 | __ JumpIfSmi(rdi, &non_callable); |
| 2719 | __ bind(&non_smi); |
| 2720 | __ CmpObjectType(rdi, JS_FUNCTION_TYPE, rcx); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2721 | __ j(equal, masm->isolate()->builtins()->CallFunction(mode, tail_call_mode), |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2722 | RelocInfo::CODE_TARGET); |
| 2723 | __ CmpInstanceType(rcx, JS_BOUND_FUNCTION_TYPE); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2724 | __ j(equal, masm->isolate()->builtins()->CallBoundFunction(tail_call_mode), |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2725 | RelocInfo::CODE_TARGET); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2726 | |
| 2727 | // Check if target has a [[Call]] internal method. |
| 2728 | __ testb(FieldOperand(rcx, Map::kBitFieldOffset), |
| 2729 | Immediate(1 << Map::kIsCallable)); |
| 2730 | __ j(zero, &non_callable); |
| 2731 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2732 | __ CmpInstanceType(rcx, JS_PROXY_TYPE); |
| 2733 | __ j(not_equal, &non_function); |
| 2734 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2735 | // 0. Prepare for tail call if necessary. |
| 2736 | if (tail_call_mode == TailCallMode::kAllow) { |
| 2737 | PrepareForTailCall(masm, rax, rbx, rcx, r8); |
| 2738 | } |
| 2739 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2740 | // 1. Runtime fallback for Proxy [[Call]]. |
| 2741 | __ PopReturnAddressTo(kScratchRegister); |
| 2742 | __ Push(rdi); |
| 2743 | __ PushReturnAddressFrom(kScratchRegister); |
| 2744 | // Increase the arguments size to include the pushed function and the |
| 2745 | // existing receiver on the stack. |
| 2746 | __ addp(rax, Immediate(2)); |
| 2747 | // Tail-call to the runtime. |
| 2748 | __ JumpToExternalReference( |
| 2749 | ExternalReference(Runtime::kJSProxyCall, masm->isolate())); |
| 2750 | |
| 2751 | // 2. Call to something else, which might have a [[Call]] internal method (if |
| 2752 | // not we raise an exception). |
| 2753 | __ bind(&non_function); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2754 | // Overwrite the original receiver with the (original) target. |
| 2755 | __ movp(args.GetReceiverOperand(), rdi); |
| 2756 | // Let the "call_as_function_delegate" take care of the rest. |
| 2757 | __ LoadNativeContextSlot(Context::CALL_AS_FUNCTION_DELEGATE_INDEX, rdi); |
| 2758 | __ Jump(masm->isolate()->builtins()->CallFunction( |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2759 | ConvertReceiverMode::kNotNullOrUndefined, tail_call_mode), |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2760 | RelocInfo::CODE_TARGET); |
| 2761 | |
| 2762 | // 3. Call to something that is not callable. |
| 2763 | __ bind(&non_callable); |
| 2764 | { |
| 2765 | FrameScope scope(masm, StackFrame::INTERNAL); |
| 2766 | __ Push(rdi); |
| 2767 | __ CallRuntime(Runtime::kThrowCalledNonCallable); |
| 2768 | } |
| 2769 | } |
| 2770 | |
| 2771 | |
| 2772 | // static |
| 2773 | void Builtins::Generate_ConstructFunction(MacroAssembler* masm) { |
| 2774 | // ----------- S t a t e ------------- |
| 2775 | // -- rax : the number of arguments (not including the receiver) |
| 2776 | // -- rdx : the new target (checked to be a constructor) |
| 2777 | // -- rdi : the constructor to call (checked to be a JSFunction) |
| 2778 | // ----------------------------------- |
| 2779 | __ AssertFunction(rdi); |
| 2780 | |
| 2781 | // Calling convention for function specific ConstructStubs require |
| 2782 | // rbx to contain either an AllocationSite or undefined. |
| 2783 | __ LoadRoot(rbx, Heap::kUndefinedValueRootIndex); |
| 2784 | |
| 2785 | // Tail call to the function-specific construct stub (still in the caller |
| 2786 | // context at this point). |
| 2787 | __ movp(rcx, FieldOperand(rdi, JSFunction::kSharedFunctionInfoOffset)); |
| 2788 | __ movp(rcx, FieldOperand(rcx, SharedFunctionInfo::kConstructStubOffset)); |
| 2789 | __ leap(rcx, FieldOperand(rcx, Code::kHeaderSize)); |
| 2790 | __ jmp(rcx); |
| 2791 | } |
| 2792 | |
| 2793 | |
| 2794 | // static |
| 2795 | void Builtins::Generate_ConstructBoundFunction(MacroAssembler* masm) { |
| 2796 | // ----------- S t a t e ------------- |
| 2797 | // -- rax : the number of arguments (not including the receiver) |
| 2798 | // -- rdx : the new target (checked to be a constructor) |
| 2799 | // -- rdi : the constructor to call (checked to be a JSBoundFunction) |
| 2800 | // ----------------------------------- |
| 2801 | __ AssertBoundFunction(rdi); |
| 2802 | |
| 2803 | // Push the [[BoundArguments]] onto the stack. |
| 2804 | Generate_PushBoundArguments(masm); |
| 2805 | |
| 2806 | // Patch new.target to [[BoundTargetFunction]] if new.target equals target. |
| 2807 | { |
| 2808 | Label done; |
| 2809 | __ cmpp(rdi, rdx); |
| 2810 | __ j(not_equal, &done, Label::kNear); |
| 2811 | __ movp(rdx, |
| 2812 | FieldOperand(rdi, JSBoundFunction::kBoundTargetFunctionOffset)); |
| 2813 | __ bind(&done); |
| 2814 | } |
| 2815 | |
| 2816 | // Construct the [[BoundTargetFunction]] via the Construct builtin. |
| 2817 | __ movp(rdi, FieldOperand(rdi, JSBoundFunction::kBoundTargetFunctionOffset)); |
| 2818 | __ Load(rcx, ExternalReference(Builtins::kConstruct, masm->isolate())); |
| 2819 | __ leap(rcx, FieldOperand(rcx, Code::kHeaderSize)); |
| 2820 | __ jmp(rcx); |
| 2821 | } |
| 2822 | |
| 2823 | |
| 2824 | // static |
| 2825 | void Builtins::Generate_ConstructProxy(MacroAssembler* masm) { |
| 2826 | // ----------- S t a t e ------------- |
| 2827 | // -- rax : the number of arguments (not including the receiver) |
| 2828 | // -- rdi : the constructor to call (checked to be a JSProxy) |
| 2829 | // -- rdx : the new target (either the same as the constructor or |
| 2830 | // the JSFunction on which new was invoked initially) |
| 2831 | // ----------------------------------- |
| 2832 | |
| 2833 | // Call into the Runtime for Proxy [[Construct]]. |
| 2834 | __ PopReturnAddressTo(kScratchRegister); |
| 2835 | __ Push(rdi); |
| 2836 | __ Push(rdx); |
| 2837 | __ PushReturnAddressFrom(kScratchRegister); |
| 2838 | // Include the pushed new_target, constructor and the receiver. |
| 2839 | __ addp(rax, Immediate(3)); |
| 2840 | __ JumpToExternalReference( |
| 2841 | ExternalReference(Runtime::kJSProxyConstruct, masm->isolate())); |
| 2842 | } |
| 2843 | |
| 2844 | |
| 2845 | // static |
| 2846 | void Builtins::Generate_Construct(MacroAssembler* masm) { |
| 2847 | // ----------- S t a t e ------------- |
| 2848 | // -- rax : the number of arguments (not including the receiver) |
| 2849 | // -- rdx : the new target (either the same as the constructor or |
| 2850 | // the JSFunction on which new was invoked initially) |
| 2851 | // -- rdi : the constructor to call (can be any Object) |
| 2852 | // ----------------------------------- |
| 2853 | StackArgumentsAccessor args(rsp, rax); |
| 2854 | |
| 2855 | // Check if target is a Smi. |
| 2856 | Label non_constructor; |
| 2857 | __ JumpIfSmi(rdi, &non_constructor, Label::kNear); |
| 2858 | |
| 2859 | // Dispatch based on instance type. |
| 2860 | __ CmpObjectType(rdi, JS_FUNCTION_TYPE, rcx); |
| 2861 | __ j(equal, masm->isolate()->builtins()->ConstructFunction(), |
| 2862 | RelocInfo::CODE_TARGET); |
| 2863 | |
| 2864 | // Check if target has a [[Construct]] internal method. |
| 2865 | __ testb(FieldOperand(rcx, Map::kBitFieldOffset), |
| 2866 | Immediate(1 << Map::kIsConstructor)); |
| 2867 | __ j(zero, &non_constructor, Label::kNear); |
| 2868 | |
| 2869 | // Only dispatch to bound functions after checking whether they are |
| 2870 | // constructors. |
| 2871 | __ CmpInstanceType(rcx, JS_BOUND_FUNCTION_TYPE); |
| 2872 | __ j(equal, masm->isolate()->builtins()->ConstructBoundFunction(), |
| 2873 | RelocInfo::CODE_TARGET); |
| 2874 | |
| 2875 | // Only dispatch to proxies after checking whether they are constructors. |
| 2876 | __ CmpInstanceType(rcx, JS_PROXY_TYPE); |
| 2877 | __ j(equal, masm->isolate()->builtins()->ConstructProxy(), |
| 2878 | RelocInfo::CODE_TARGET); |
| 2879 | |
| 2880 | // Called Construct on an exotic Object with a [[Construct]] internal method. |
| 2881 | { |
| 2882 | // Overwrite the original receiver with the (original) target. |
| 2883 | __ movp(args.GetReceiverOperand(), rdi); |
| 2884 | // Let the "call_as_constructor_delegate" take care of the rest. |
| 2885 | __ LoadNativeContextSlot(Context::CALL_AS_CONSTRUCTOR_DELEGATE_INDEX, rdi); |
| 2886 | __ Jump(masm->isolate()->builtins()->CallFunction(), |
| 2887 | RelocInfo::CODE_TARGET); |
| 2888 | } |
| 2889 | |
| 2890 | // Called Construct on an Object that doesn't have a [[Construct]] internal |
| 2891 | // method. |
| 2892 | __ bind(&non_constructor); |
| 2893 | __ Jump(masm->isolate()->builtins()->ConstructedNonConstructable(), |
| 2894 | RelocInfo::CODE_TARGET); |
| 2895 | } |
| 2896 | |
| 2897 | |
| 2898 | static void CompatibleReceiverCheck(MacroAssembler* masm, Register receiver, |
| 2899 | Register function_template_info, |
| 2900 | Register scratch0, Register scratch1, |
| 2901 | Register scratch2, |
| 2902 | Label* receiver_check_failed) { |
| 2903 | Register signature = scratch0; |
| 2904 | Register map = scratch1; |
| 2905 | Register constructor = scratch2; |
| 2906 | |
| 2907 | // If there is no signature, return the holder. |
| 2908 | __ movp(signature, FieldOperand(function_template_info, |
| 2909 | FunctionTemplateInfo::kSignatureOffset)); |
| 2910 | __ CompareRoot(signature, Heap::kUndefinedValueRootIndex); |
| 2911 | Label receiver_check_passed; |
| 2912 | __ j(equal, &receiver_check_passed, Label::kNear); |
| 2913 | |
| 2914 | // Walk the prototype chain. |
| 2915 | __ movp(map, FieldOperand(receiver, HeapObject::kMapOffset)); |
| 2916 | Label prototype_loop_start; |
| 2917 | __ bind(&prototype_loop_start); |
| 2918 | |
| 2919 | // Get the constructor, if any. |
| 2920 | __ GetMapConstructor(constructor, map, kScratchRegister); |
| 2921 | __ CmpInstanceType(kScratchRegister, JS_FUNCTION_TYPE); |
| 2922 | Label next_prototype; |
| 2923 | __ j(not_equal, &next_prototype, Label::kNear); |
| 2924 | |
| 2925 | // Get the constructor's signature. |
| 2926 | Register type = constructor; |
| 2927 | __ movp(type, |
| 2928 | FieldOperand(constructor, JSFunction::kSharedFunctionInfoOffset)); |
| 2929 | __ movp(type, FieldOperand(type, SharedFunctionInfo::kFunctionDataOffset)); |
| 2930 | |
| 2931 | // Loop through the chain of inheriting function templates. |
| 2932 | Label function_template_loop; |
| 2933 | __ bind(&function_template_loop); |
| 2934 | |
| 2935 | // If the signatures match, we have a compatible receiver. |
| 2936 | __ cmpp(signature, type); |
| 2937 | __ j(equal, &receiver_check_passed, Label::kNear); |
| 2938 | |
| 2939 | // If the current type is not a FunctionTemplateInfo, load the next prototype |
| 2940 | // in the chain. |
| 2941 | __ JumpIfSmi(type, &next_prototype, Label::kNear); |
| 2942 | __ CmpObjectType(type, FUNCTION_TEMPLATE_INFO_TYPE, kScratchRegister); |
| 2943 | __ j(not_equal, &next_prototype, Label::kNear); |
| 2944 | |
| 2945 | // Otherwise load the parent function template and iterate. |
| 2946 | __ movp(type, |
| 2947 | FieldOperand(type, FunctionTemplateInfo::kParentTemplateOffset)); |
| 2948 | __ jmp(&function_template_loop, Label::kNear); |
| 2949 | |
| 2950 | // Load the next prototype. |
| 2951 | __ bind(&next_prototype); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2952 | __ testq(FieldOperand(map, Map::kBitField3Offset), |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2953 | Immediate(Map::HasHiddenPrototype::kMask)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2954 | __ j(zero, receiver_check_failed); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2955 | __ movp(receiver, FieldOperand(map, Map::kPrototypeOffset)); |
| 2956 | __ movp(map, FieldOperand(receiver, HeapObject::kMapOffset)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2957 | // Iterate. |
| 2958 | __ jmp(&prototype_loop_start, Label::kNear); |
| 2959 | |
| 2960 | __ bind(&receiver_check_passed); |
| 2961 | } |
| 2962 | |
| 2963 | |
| 2964 | void Builtins::Generate_HandleFastApiCall(MacroAssembler* masm) { |
| 2965 | // ----------- S t a t e ------------- |
| 2966 | // -- rax : number of arguments (not including the receiver) |
| 2967 | // -- rdi : callee |
| 2968 | // -- rsi : context |
| 2969 | // -- rsp[0] : return address |
| 2970 | // -- rsp[8] : last argument |
| 2971 | // -- ... |
| 2972 | // -- rsp[rax * 8] : first argument |
| 2973 | // -- rsp[(rax + 1) * 8] : receiver |
| 2974 | // ----------------------------------- |
| 2975 | |
| 2976 | StackArgumentsAccessor args(rsp, rax); |
| 2977 | |
| 2978 | // Load the FunctionTemplateInfo. |
| 2979 | __ movp(rbx, FieldOperand(rdi, JSFunction::kSharedFunctionInfoOffset)); |
| 2980 | __ movp(rbx, FieldOperand(rbx, SharedFunctionInfo::kFunctionDataOffset)); |
| 2981 | |
| 2982 | // Do the compatible receiver check. |
| 2983 | Label receiver_check_failed; |
| 2984 | __ movp(rcx, args.GetReceiverOperand()); |
| 2985 | CompatibleReceiverCheck(masm, rcx, rbx, rdx, r8, r9, &receiver_check_failed); |
| 2986 | |
| 2987 | // Get the callback offset from the FunctionTemplateInfo, and jump to the |
| 2988 | // beginning of the code. |
| 2989 | __ movp(rdx, FieldOperand(rbx, FunctionTemplateInfo::kCallCodeOffset)); |
| 2990 | __ movp(rdx, FieldOperand(rdx, CallHandlerInfo::kFastHandlerOffset)); |
| 2991 | __ addp(rdx, Immediate(Code::kHeaderSize - kHeapObjectTag)); |
| 2992 | __ jmp(rdx); |
| 2993 | |
| 2994 | // Compatible receiver check failed: pop return address, arguments and |
| 2995 | // receiver and throw an Illegal Invocation exception. |
| 2996 | __ bind(&receiver_check_failed); |
| 2997 | __ PopReturnAddressTo(rbx); |
| 2998 | __ leap(rax, Operand(rax, times_pointer_size, 1 * kPointerSize)); |
| 2999 | __ addp(rsp, rax); |
| 3000 | __ PushReturnAddressFrom(rbx); |
| 3001 | { |
| 3002 | FrameScope scope(masm, StackFrame::INTERNAL); |
| 3003 | __ TailCallRuntime(Runtime::kThrowIllegalInvocation); |
| 3004 | } |
| 3005 | } |
| 3006 | |
| 3007 | |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 3008 | void Builtins::Generate_OnStackReplacement(MacroAssembler* masm) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3009 | // Lookup the function in the JavaScript frame. |
| 3010 | __ movp(rax, Operand(rbp, JavaScriptFrameConstants::kFunctionOffset)); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 3011 | { |
| 3012 | FrameScope scope(masm, StackFrame::INTERNAL); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3013 | // Pass function as argument. |
| 3014 | __ Push(rax); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3015 | __ CallRuntime(Runtime::kCompileForOnStackReplacement); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 3016 | } |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 3017 | |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 3018 | Label skip; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3019 | // If the code object is null, just return to the unoptimized code. |
| 3020 | __ cmpp(rax, Immediate(0)); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 3021 | __ j(not_equal, &skip, Label::kNear); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 3022 | __ ret(0); |
| 3023 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3024 | __ bind(&skip); |
| 3025 | |
| 3026 | // Load deoptimization data from the code object. |
| 3027 | __ movp(rbx, Operand(rax, Code::kDeoptimizationDataOffset - kHeapObjectTag)); |
| 3028 | |
| 3029 | // Load the OSR entrypoint offset from the deoptimization data. |
| 3030 | __ SmiToInteger32(rbx, Operand(rbx, FixedArray::OffsetOfElementAt( |
| 3031 | DeoptimizationInputData::kOsrPcOffsetIndex) - kHeapObjectTag)); |
| 3032 | |
| 3033 | // Compute the target address = code_obj + header_size + osr_offset |
| 3034 | __ leap(rax, Operand(rax, rbx, times_1, Code::kHeaderSize - kHeapObjectTag)); |
| 3035 | |
| 3036 | // Overwrite the return address on the stack. |
| 3037 | __ movq(StackOperandForReturnAddress(0), rax); |
| 3038 | |
| 3039 | // And "return" to the OSR entry point of the function. |
| 3040 | __ ret(0); |
| 3041 | } |
| 3042 | |
| 3043 | |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 3044 | #undef __ |
| 3045 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3046 | } // namespace internal |
| 3047 | } // namespace v8 |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 3048 | |
| 3049 | #endif // V8_TARGET_ARCH_X64 |