Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1 | // Copyright 2012 the V8 project authors. All rights reserved. |
| 2 | // Use of this source code is governed by a BSD-style license that can be |
| 3 | // found in the LICENSE file. |
| 4 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5 | #if V8_TARGET_ARCH_X87 |
| 6 | |
| 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" |
| 11 | #include "src/x87/frames-x87.h" |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 12 | |
| 13 | namespace v8 { |
| 14 | namespace internal { |
| 15 | |
| 16 | |
| 17 | #define __ ACCESS_MASM(masm) |
| 18 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 19 | void Builtins::Generate_Adaptor(MacroAssembler* masm, CFunctionId id) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 20 | // ----------- S t a t e ------------- |
| 21 | // -- eax : number of arguments excluding receiver |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 22 | // -- edi : target |
| 23 | // -- edx : new.target |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 24 | // -- esp[0] : return address |
| 25 | // -- esp[4] : last argument |
| 26 | // -- ... |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 27 | // -- esp[4 * argc] : first argument |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 28 | // -- esp[4 * (argc +1)] : receiver |
| 29 | // ----------------------------------- |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 30 | __ AssertFunction(edi); |
| 31 | |
| 32 | // Make sure we operate in the context of the called function (for example |
| 33 | // ConstructStubs implemented in C++ will be run in the context of the caller |
| 34 | // instead of the callee, due to the way that [[Construct]] is defined for |
| 35 | // ordinary functions). |
| 36 | __ mov(esi, FieldOperand(edi, JSFunction::kContextOffset)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 37 | |
| 38 | // Insert extra arguments. |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 39 | const int num_extra_args = 2; |
| 40 | __ PopReturnAddressTo(ecx); |
| 41 | __ Push(edi); |
| 42 | __ Push(edx); |
| 43 | __ PushReturnAddressFrom(ecx); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 44 | |
| 45 | // JumpToExternalReference expects eax to contain the number of arguments |
| 46 | // including the receiver and the extra arguments. |
| 47 | __ add(eax, Immediate(num_extra_args + 1)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 48 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 49 | __ JumpToExternalReference(ExternalReference(id, masm->isolate())); |
| 50 | } |
| 51 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 52 | static void GenerateTailCallToReturnedCode(MacroAssembler* masm, |
| 53 | Runtime::FunctionId function_id) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 54 | // ----------- S t a t e ------------- |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 55 | // -- eax : argument count (preserved for callee) |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 56 | // -- edx : new target (preserved for callee) |
| 57 | // -- edi : target function (preserved for callee) |
| 58 | // ----------------------------------- |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 59 | { |
| 60 | FrameScope scope(masm, StackFrame::INTERNAL); |
| 61 | // Push the number of arguments to the callee. |
| 62 | __ SmiTag(eax); |
| 63 | __ push(eax); |
| 64 | // Push a copy of the target function and the new target. |
| 65 | __ push(edi); |
| 66 | __ push(edx); |
| 67 | // Function is also the parameter to the runtime call. |
| 68 | __ push(edi); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 69 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 70 | __ CallRuntime(function_id, 1); |
| 71 | __ mov(ebx, eax); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 72 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 73 | // Restore target function and new target. |
| 74 | __ pop(edx); |
| 75 | __ pop(edi); |
| 76 | __ pop(eax); |
| 77 | __ SmiUntag(eax); |
| 78 | } |
| 79 | |
| 80 | __ lea(ebx, FieldOperand(ebx, Code::kHeaderSize)); |
| 81 | __ jmp(ebx); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 82 | } |
| 83 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 84 | static void GenerateTailCallToSharedCode(MacroAssembler* masm) { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 85 | __ mov(ebx, FieldOperand(edi, JSFunction::kSharedFunctionInfoOffset)); |
| 86 | __ mov(ebx, FieldOperand(ebx, SharedFunctionInfo::kCodeOffset)); |
| 87 | __ lea(ebx, FieldOperand(ebx, Code::kHeaderSize)); |
| 88 | __ jmp(ebx); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 89 | } |
| 90 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 91 | void Builtins::Generate_InOptimizationQueue(MacroAssembler* masm) { |
| 92 | // Checking whether the queued function is ready for install is optional, |
| 93 | // since we come across interrupts and stack checks elsewhere. However, |
| 94 | // not checking may delay installing ready functions, and always checking |
| 95 | // would be quite expensive. A good compromise is to first check against |
| 96 | // stack limit as a cue for an interrupt signal. |
| 97 | Label ok; |
| 98 | ExternalReference stack_limit = |
| 99 | ExternalReference::address_of_stack_limit(masm->isolate()); |
| 100 | __ cmp(esp, Operand::StaticVariable(stack_limit)); |
| 101 | __ j(above_equal, &ok, Label::kNear); |
| 102 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 103 | GenerateTailCallToReturnedCode(masm, Runtime::kTryInstallOptimizedCode); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 104 | |
| 105 | __ bind(&ok); |
| 106 | GenerateTailCallToSharedCode(masm); |
| 107 | } |
| 108 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 109 | static void Generate_JSConstructStubHelper(MacroAssembler* masm, |
| 110 | bool is_api_function, |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 111 | bool create_implicit_receiver, |
| 112 | bool check_derived_construct) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 113 | // ----------- S t a t e ------------- |
| 114 | // -- eax: number of arguments |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 115 | // -- esi: context |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 116 | // -- edi: constructor function |
| 117 | // -- ebx: allocation site or undefined |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 118 | // -- edx: new target |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 119 | // ----------------------------------- |
| 120 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 121 | // Enter a construct frame. |
| 122 | { |
| 123 | FrameScope scope(masm, StackFrame::CONSTRUCT); |
| 124 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 125 | // Preserve the incoming parameters on the stack. |
| 126 | __ AssertUndefinedOrAllocationSite(ebx); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 127 | __ push(esi); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 128 | __ push(ebx); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 129 | __ SmiTag(eax); |
| 130 | __ push(eax); |
| 131 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 132 | if (create_implicit_receiver) { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 133 | // Allocate the new receiver object. |
| 134 | __ Push(edi); |
| 135 | __ Push(edx); |
| 136 | FastNewObjectStub stub(masm->isolate()); |
| 137 | __ CallStub(&stub); |
| 138 | __ mov(ebx, eax); |
| 139 | __ Pop(edx); |
| 140 | __ Pop(edi); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 141 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 142 | // ----------- S t a t e ------------- |
| 143 | // -- edi: constructor function |
| 144 | // -- ebx: newly allocated object |
| 145 | // -- edx: new target |
| 146 | // ----------------------------------- |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 147 | |
| 148 | // Retrieve smi-tagged arguments count from the stack. |
| 149 | __ mov(eax, Operand(esp, 0)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 150 | } |
| 151 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 152 | __ SmiUntag(eax); |
| 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(ebx); |
| 159 | __ push(ebx); |
| 160 | } else { |
| 161 | __ PushRoot(Heap::kTheHoleValueRootIndex); |
| 162 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 163 | |
| 164 | // Set up pointer to last argument. |
| 165 | __ lea(ebx, Operand(ebp, StandardFrameConstants::kCallerSPOffset)); |
| 166 | |
| 167 | // Copy arguments and receiver to the expression stack. |
| 168 | Label loop, entry; |
| 169 | __ mov(ecx, eax); |
| 170 | __ jmp(&entry); |
| 171 | __ bind(&loop); |
| 172 | __ push(Operand(ebx, ecx, times_4, 0)); |
| 173 | __ bind(&entry); |
| 174 | __ dec(ecx); |
| 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(eax); |
| 179 | __ InvokeFunction(edi, edx, actual, CALL_FUNCTION, |
| 180 | CheckDebugStepCallWrapper()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [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 | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [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 | __ mov(esi, Operand(ebp, ConstructFrameConstants::kContextOffset)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [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; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 195 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 196 | // If the result is a smi, it is *not* an object in the ECMA sense. |
| 197 | __ JumpIfSmi(eax, &use_receiver); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 198 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 199 | // If the type of the result (stored in its map) is less than |
| 200 | // FIRST_JS_RECEIVER_TYPE, it is not an object in the ECMA sense. |
| 201 | __ CmpObjectType(eax, FIRST_JS_RECEIVER_TYPE, ecx); |
| 202 | __ j(above_equal, &exit); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [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 | __ mov(eax, Operand(esp, 0)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [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 | __ mov(ebx, Operand(esp, 1 * kPointerSize)); |
| 213 | } else { |
| 214 | __ mov(ebx, Operand(esp, 0)); |
| 215 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 216 | |
| 217 | // Leave construct frame. |
| 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(eax, &dont_throw); |
| 226 | { |
| 227 | FrameScope scope(masm, StackFrame::INTERNAL); |
| 228 | __ CallRuntime(Runtime::kThrowDerivedConstructorReturnedNonObject); |
| 229 | } |
| 230 | __ bind(&dont_throw); |
| 231 | } |
| 232 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 233 | // Remove caller arguments from the stack and return. |
| 234 | STATIC_ASSERT(kSmiTagSize == 1 && kSmiTag == 0); |
| 235 | __ pop(ecx); |
| 236 | __ lea(esp, Operand(esp, ebx, times_2, 1 * kPointerSize)); // 1 ~ receiver |
| 237 | __ push(ecx); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 238 | if (create_implicit_receiver) { |
| 239 | __ IncrementCounter(masm->isolate()->counters()->constructed_objects(), 1); |
| 240 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 241 | __ ret(0); |
| 242 | } |
| 243 | |
| 244 | |
| 245 | void Builtins::Generate_JSConstructStubGeneric(MacroAssembler* masm) { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 246 | Generate_JSConstructStubHelper(masm, false, true, false); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 247 | } |
| 248 | |
| 249 | |
| 250 | void Builtins::Generate_JSConstructStubApi(MacroAssembler* masm) { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 251 | Generate_JSConstructStubHelper(masm, true, false, false); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 252 | } |
| 253 | |
| 254 | |
| 255 | void Builtins::Generate_JSBuiltinsConstructStub(MacroAssembler* masm) { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 256 | Generate_JSConstructStubHelper(masm, false, false, false); |
| 257 | } |
| 258 | |
| 259 | |
| 260 | void Builtins::Generate_JSBuiltinsConstructStubForDerived( |
| 261 | MacroAssembler* masm) { |
| 262 | Generate_JSConstructStubHelper(masm, false, false, true); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 263 | } |
| 264 | |
| 265 | |
| 266 | void Builtins::Generate_ConstructedNonConstructable(MacroAssembler* masm) { |
| 267 | FrameScope scope(masm, StackFrame::INTERNAL); |
| 268 | __ push(edi); |
| 269 | __ CallRuntime(Runtime::kThrowConstructedNonConstructable); |
| 270 | } |
| 271 | |
| 272 | |
| 273 | enum IsTagged { kEaxIsSmiTagged, kEaxIsUntaggedInt }; |
| 274 | |
| 275 | |
| 276 | // Clobbers ecx, edx, edi; preserves all other registers. |
| 277 | static void Generate_CheckStackOverflow(MacroAssembler* masm, |
| 278 | IsTagged eax_is_tagged) { |
| 279 | // eax : the number of items to be pushed to the stack |
| 280 | // |
| 281 | // Check the stack for overflow. We are not trying to catch |
| 282 | // interruptions (e.g. debug break and preemption) here, so the "real stack |
| 283 | // limit" is checked. |
| 284 | Label okay; |
| 285 | ExternalReference real_stack_limit = |
| 286 | ExternalReference::address_of_real_stack_limit(masm->isolate()); |
| 287 | __ mov(edi, Operand::StaticVariable(real_stack_limit)); |
| 288 | // Make ecx the space we have left. The stack might already be overflowed |
| 289 | // here which will cause ecx to become negative. |
| 290 | __ mov(ecx, esp); |
| 291 | __ sub(ecx, edi); |
| 292 | // Make edx the space we need for the array when it is unrolled onto the |
| 293 | // stack. |
| 294 | __ mov(edx, eax); |
| 295 | int smi_tag = eax_is_tagged == kEaxIsSmiTagged ? kSmiTagSize : 0; |
| 296 | __ shl(edx, kPointerSizeLog2 - smi_tag); |
| 297 | // Check if the arguments will overflow the stack. |
| 298 | __ cmp(ecx, edx); |
| 299 | __ j(greater, &okay); // Signed comparison. |
| 300 | |
| 301 | // Out of stack space. |
| 302 | __ CallRuntime(Runtime::kThrowStackOverflow); |
| 303 | |
| 304 | __ bind(&okay); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 305 | } |
| 306 | |
| 307 | |
| 308 | static void Generate_JSEntryTrampolineHelper(MacroAssembler* masm, |
| 309 | bool is_construct) { |
| 310 | ProfileEntryHookStub::MaybeCallEntryHook(masm); |
| 311 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 312 | { |
| 313 | FrameScope scope(masm, StackFrame::INTERNAL); |
| 314 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 315 | // Setup the context (we need to use the caller context from the isolate). |
| 316 | ExternalReference context_address(Isolate::kContextAddress, |
| 317 | masm->isolate()); |
| 318 | __ mov(esi, Operand::StaticVariable(context_address)); |
| 319 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 320 | // Load the previous frame pointer (ebx) to access C arguments |
| 321 | __ mov(ebx, Operand(ebp, 0)); |
| 322 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 323 | // Push the function and the receiver onto the stack. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 324 | __ push(Operand(ebx, EntryFrameConstants::kFunctionArgOffset)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 325 | __ push(Operand(ebx, EntryFrameConstants::kReceiverArgOffset)); |
| 326 | |
| 327 | // Load the number of arguments and setup pointer to the arguments. |
| 328 | __ mov(eax, Operand(ebx, EntryFrameConstants::kArgcOffset)); |
| 329 | __ mov(ebx, Operand(ebx, EntryFrameConstants::kArgvOffset)); |
| 330 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 331 | // Check if we have enough stack space to push all arguments. |
| 332 | // Expects argument count in eax. Clobbers ecx, edx, edi. |
| 333 | Generate_CheckStackOverflow(masm, kEaxIsUntaggedInt); |
| 334 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 335 | // Copy arguments to the stack in a loop. |
| 336 | Label loop, entry; |
| 337 | __ Move(ecx, Immediate(0)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 338 | __ jmp(&entry, Label::kNear); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 339 | __ bind(&loop); |
| 340 | __ mov(edx, Operand(ebx, ecx, times_4, 0)); // push parameter from argv |
| 341 | __ push(Operand(edx, 0)); // dereference handle |
| 342 | __ inc(ecx); |
| 343 | __ bind(&entry); |
| 344 | __ cmp(ecx, eax); |
| 345 | __ j(not_equal, &loop); |
| 346 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 347 | // Load the previous frame pointer (ebx) to access C arguments |
| 348 | __ mov(ebx, Operand(ebp, 0)); |
| 349 | |
| 350 | // Get the new.target and function from the frame. |
| 351 | __ mov(edx, Operand(ebx, EntryFrameConstants::kNewTargetArgOffset)); |
| 352 | __ mov(edi, Operand(ebx, EntryFrameConstants::kFunctionArgOffset)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 353 | |
| 354 | // Invoke the code. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 355 | Handle<Code> builtin = is_construct |
| 356 | ? masm->isolate()->builtins()->Construct() |
| 357 | : masm->isolate()->builtins()->Call(); |
| 358 | __ Call(builtin, RelocInfo::CODE_TARGET); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 359 | |
| 360 | // Exit the internal frame. Notice that this also removes the empty. |
| 361 | // context and the function left on the stack by the code |
| 362 | // invocation. |
| 363 | } |
| 364 | __ ret(kPointerSize); // Remove receiver. |
| 365 | } |
| 366 | |
| 367 | |
| 368 | void Builtins::Generate_JSEntryTrampoline(MacroAssembler* masm) { |
| 369 | Generate_JSEntryTrampolineHelper(masm, false); |
| 370 | } |
| 371 | |
| 372 | |
| 373 | void Builtins::Generate_JSConstructEntryTrampoline(MacroAssembler* masm) { |
| 374 | Generate_JSEntryTrampolineHelper(masm, true); |
| 375 | } |
| 376 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 377 | // static |
| 378 | void Builtins::Generate_ResumeGeneratorTrampoline(MacroAssembler* masm) { |
| 379 | // ----------- S t a t e ------------- |
| 380 | // -- eax : the value to pass to the generator |
| 381 | // -- ebx : the JSGeneratorObject to resume |
| 382 | // -- edx : the resume mode (tagged) |
| 383 | // -- esp[0] : return address |
| 384 | // ----------------------------------- |
| 385 | __ AssertGeneratorObject(ebx); |
| 386 | |
| 387 | // Store input value into generator object. |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 388 | __ mov(FieldOperand(ebx, JSGeneratorObject::kInputOrDebugPosOffset), eax); |
| 389 | __ RecordWriteField(ebx, JSGeneratorObject::kInputOrDebugPosOffset, eax, ecx, |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 390 | kDontSaveFPRegs); |
| 391 | |
| 392 | // Store resume mode into generator object. |
| 393 | __ mov(FieldOperand(ebx, JSGeneratorObject::kResumeModeOffset), edx); |
| 394 | |
| 395 | // Load suspended function and context. |
| 396 | __ mov(esi, FieldOperand(ebx, JSGeneratorObject::kContextOffset)); |
| 397 | __ mov(edi, FieldOperand(ebx, JSGeneratorObject::kFunctionOffset)); |
| 398 | |
| 399 | // Flood function if we are stepping. |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 400 | Label prepare_step_in_if_stepping, prepare_step_in_suspended_generator; |
| 401 | Label stepping_prepared; |
| 402 | ExternalReference last_step_action = |
| 403 | ExternalReference::debug_last_step_action_address(masm->isolate()); |
| 404 | STATIC_ASSERT(StepFrame > StepIn); |
| 405 | __ cmpb(Operand::StaticVariable(last_step_action), Immediate(StepIn)); |
| 406 | __ j(greater_equal, &prepare_step_in_if_stepping); |
| 407 | |
| 408 | // Flood function if we need to continue stepping in the suspended generator. |
| 409 | ExternalReference debug_suspended_generator = |
| 410 | ExternalReference::debug_suspended_generator_address(masm->isolate()); |
| 411 | __ cmp(ebx, Operand::StaticVariable(debug_suspended_generator)); |
| 412 | __ j(equal, &prepare_step_in_suspended_generator); |
| 413 | __ bind(&stepping_prepared); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 414 | |
| 415 | // Pop return address. |
| 416 | __ PopReturnAddressTo(eax); |
| 417 | |
| 418 | // Push receiver. |
| 419 | __ Push(FieldOperand(ebx, JSGeneratorObject::kReceiverOffset)); |
| 420 | |
| 421 | // ----------- S t a t e ------------- |
| 422 | // -- eax : return address |
| 423 | // -- ebx : the JSGeneratorObject to resume |
| 424 | // -- edx : the resume mode (tagged) |
| 425 | // -- edi : generator function |
| 426 | // -- esi : generator context |
| 427 | // -- esp[0] : generator receiver |
| 428 | // ----------------------------------- |
| 429 | |
| 430 | // Push holes for arguments to generator function. Since the parser forced |
| 431 | // context allocation for any variables in generators, the actual argument |
| 432 | // values have already been copied into the context and these dummy values |
| 433 | // will never be used. |
| 434 | __ mov(ecx, FieldOperand(edi, JSFunction::kSharedFunctionInfoOffset)); |
| 435 | __ mov(ecx, |
| 436 | FieldOperand(ecx, SharedFunctionInfo::kFormalParameterCountOffset)); |
| 437 | { |
| 438 | Label done_loop, loop; |
| 439 | __ bind(&loop); |
| 440 | __ sub(ecx, Immediate(Smi::FromInt(1))); |
| 441 | __ j(carry, &done_loop, Label::kNear); |
| 442 | __ PushRoot(Heap::kTheHoleValueRootIndex); |
| 443 | __ jmp(&loop); |
| 444 | __ bind(&done_loop); |
| 445 | } |
| 446 | |
| 447 | // Dispatch on the kind of generator object. |
| 448 | Label old_generator; |
| 449 | __ mov(ecx, FieldOperand(edi, JSFunction::kSharedFunctionInfoOffset)); |
| 450 | __ mov(ecx, FieldOperand(ecx, SharedFunctionInfo::kFunctionDataOffset)); |
| 451 | __ CmpObjectType(ecx, BYTECODE_ARRAY_TYPE, ecx); |
| 452 | __ j(not_equal, &old_generator); |
| 453 | |
| 454 | // New-style (ignition/turbofan) generator object |
| 455 | { |
| 456 | __ PushReturnAddressFrom(eax); |
| 457 | __ mov(eax, FieldOperand(edi, JSFunction::kSharedFunctionInfoOffset)); |
| 458 | __ mov(eax, |
| 459 | FieldOperand(ecx, SharedFunctionInfo::kFormalParameterCountOffset)); |
| 460 | // We abuse new.target both to indicate that this is a resume call and to |
| 461 | // pass in the generator object. In ordinary calls, new.target is always |
| 462 | // undefined because generator functions are non-constructable. |
| 463 | __ mov(edx, ebx); |
| 464 | __ jmp(FieldOperand(edi, JSFunction::kCodeEntryOffset)); |
| 465 | } |
| 466 | |
| 467 | // Old-style (full-codegen) generator object |
| 468 | __ bind(&old_generator); |
| 469 | { |
| 470 | // Enter a new JavaScript frame, and initialize its slots as they were when |
| 471 | // the generator was suspended. |
| 472 | FrameScope scope(masm, StackFrame::MANUAL); |
| 473 | __ PushReturnAddressFrom(eax); // Return address. |
| 474 | __ Push(ebp); // Caller's frame pointer. |
| 475 | __ Move(ebp, esp); |
| 476 | __ Push(esi); // Callee's context. |
| 477 | __ Push(edi); // Callee's JS Function. |
| 478 | |
| 479 | // Restore the operand stack. |
| 480 | __ mov(eax, FieldOperand(ebx, JSGeneratorObject::kOperandStackOffset)); |
| 481 | { |
| 482 | Label done_loop, loop; |
| 483 | __ Move(ecx, Smi::FromInt(0)); |
| 484 | __ bind(&loop); |
| 485 | __ cmp(ecx, FieldOperand(eax, FixedArray::kLengthOffset)); |
| 486 | __ j(equal, &done_loop, Label::kNear); |
| 487 | __ Push(FieldOperand(eax, ecx, times_half_pointer_size, |
| 488 | FixedArray::kHeaderSize)); |
| 489 | __ add(ecx, Immediate(Smi::FromInt(1))); |
| 490 | __ jmp(&loop); |
| 491 | __ bind(&done_loop); |
| 492 | } |
| 493 | |
| 494 | // Reset operand stack so we don't leak. |
| 495 | __ mov(FieldOperand(ebx, JSGeneratorObject::kOperandStackOffset), |
| 496 | Immediate(masm->isolate()->factory()->empty_fixed_array())); |
| 497 | |
| 498 | // Resume the generator function at the continuation. |
| 499 | __ mov(edx, FieldOperand(edi, JSFunction::kSharedFunctionInfoOffset)); |
| 500 | __ mov(edx, FieldOperand(edx, SharedFunctionInfo::kCodeOffset)); |
| 501 | __ mov(ecx, FieldOperand(ebx, JSGeneratorObject::kContinuationOffset)); |
| 502 | __ SmiUntag(ecx); |
| 503 | __ lea(edx, FieldOperand(edx, ecx, times_1, Code::kHeaderSize)); |
| 504 | __ mov(FieldOperand(ebx, JSGeneratorObject::kContinuationOffset), |
| 505 | Immediate(Smi::FromInt(JSGeneratorObject::kGeneratorExecuting))); |
| 506 | __ mov(eax, ebx); // Continuation expects generator object in eax. |
| 507 | __ jmp(edx); |
| 508 | } |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 509 | |
| 510 | __ bind(&prepare_step_in_if_stepping); |
| 511 | { |
| 512 | FrameScope scope(masm, StackFrame::INTERNAL); |
| 513 | __ Push(ebx); |
| 514 | __ Push(edx); |
| 515 | __ Push(edi); |
| 516 | __ CallRuntime(Runtime::kDebugPrepareStepInIfStepping); |
| 517 | __ Pop(edx); |
| 518 | __ Pop(ebx); |
| 519 | __ mov(edi, FieldOperand(ebx, JSGeneratorObject::kFunctionOffset)); |
| 520 | } |
| 521 | __ jmp(&stepping_prepared); |
| 522 | |
| 523 | __ bind(&prepare_step_in_suspended_generator); |
| 524 | { |
| 525 | FrameScope scope(masm, StackFrame::INTERNAL); |
| 526 | __ Push(ebx); |
| 527 | __ Push(edx); |
| 528 | __ CallRuntime(Runtime::kDebugPrepareStepInSuspendedGenerator); |
| 529 | __ Pop(edx); |
| 530 | __ Pop(ebx); |
| 531 | __ mov(edi, FieldOperand(ebx, JSGeneratorObject::kFunctionOffset)); |
| 532 | } |
| 533 | __ jmp(&stepping_prepared); |
| 534 | } |
| 535 | |
| 536 | static void LeaveInterpreterFrame(MacroAssembler* masm, Register scratch1, |
| 537 | Register scratch2) { |
| 538 | Register args_count = scratch1; |
| 539 | Register return_pc = scratch2; |
| 540 | |
| 541 | // Get the arguments + reciever count. |
| 542 | __ mov(args_count, |
| 543 | Operand(ebp, InterpreterFrameConstants::kBytecodeArrayFromFp)); |
| 544 | __ mov(args_count, |
| 545 | FieldOperand(args_count, BytecodeArray::kParameterSizeOffset)); |
| 546 | |
| 547 | // Leave the frame (also dropping the register file). |
| 548 | __ leave(); |
| 549 | |
| 550 | // Drop receiver + arguments. |
| 551 | __ pop(return_pc); |
| 552 | __ add(esp, args_count); |
| 553 | __ push(return_pc); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 554 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 555 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 556 | // Generate code for entering a JS function with the interpreter. |
| 557 | // On entry to the function the receiver and arguments have been pushed on the |
| 558 | // stack left to right. The actual argument count matches the formal parameter |
| 559 | // count expected by the function. |
| 560 | // |
| 561 | // The live registers are: |
| 562 | // o edi: the JS function object being called |
| 563 | // o edx: the new target |
| 564 | // o esi: our context |
| 565 | // o ebp: the caller's frame pointer |
| 566 | // o esp: stack pointer (pointing to return address) |
| 567 | // |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 568 | // The function builds an interpreter frame. See InterpreterFrameConstants in |
| 569 | // frames.h for its layout. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 570 | void Builtins::Generate_InterpreterEntryTrampoline(MacroAssembler* masm) { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 571 | ProfileEntryHookStub::MaybeCallEntryHook(masm); |
| 572 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 573 | // Open a frame scope to indicate that there is a frame on the stack. The |
| 574 | // MANUAL indicates that the scope shouldn't actually generate code to set up |
| 575 | // the frame (that is done below). |
| 576 | FrameScope frame_scope(masm, StackFrame::MANUAL); |
| 577 | __ push(ebp); // Caller's frame pointer. |
| 578 | __ mov(ebp, esp); |
| 579 | __ push(esi); // Callee's context. |
| 580 | __ push(edi); // Callee's JS function. |
| 581 | __ push(edx); // Callee's new target. |
| 582 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 583 | // Get the bytecode array from the function object (or from the DebugInfo if |
| 584 | // it is present) and load it into kInterpreterBytecodeArrayRegister. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 585 | __ mov(eax, FieldOperand(edi, JSFunction::kSharedFunctionInfoOffset)); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 586 | Label load_debug_bytecode_array, bytecode_array_loaded; |
| 587 | __ cmp(FieldOperand(eax, SharedFunctionInfo::kDebugInfoOffset), |
| 588 | Immediate(DebugInfo::uninitialized())); |
| 589 | __ j(not_equal, &load_debug_bytecode_array); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 590 | __ mov(kInterpreterBytecodeArrayRegister, |
| 591 | FieldOperand(eax, SharedFunctionInfo::kFunctionDataOffset)); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 592 | __ bind(&bytecode_array_loaded); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 593 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 594 | // Check function data field is actually a BytecodeArray object. |
| 595 | Label bytecode_array_not_present; |
| 596 | __ CompareRoot(kInterpreterBytecodeArrayRegister, |
| 597 | Heap::kUndefinedValueRootIndex); |
| 598 | __ j(equal, &bytecode_array_not_present); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 599 | if (FLAG_debug_code) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 600 | __ AssertNotSmi(kInterpreterBytecodeArrayRegister); |
| 601 | __ CmpObjectType(kInterpreterBytecodeArrayRegister, BYTECODE_ARRAY_TYPE, |
| 602 | eax); |
| 603 | __ Assert(equal, kFunctionDataShouldBeBytecodeArrayOnInterpreterEntry); |
| 604 | } |
| 605 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 606 | // Push bytecode array. |
| 607 | __ push(kInterpreterBytecodeArrayRegister); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 608 | // Push Smi tagged initial bytecode array offset. |
| 609 | __ push(Immediate(Smi::FromInt(BytecodeArray::kHeaderSize - kHeapObjectTag))); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 610 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 611 | // Allocate the local and temporary register file on the stack. |
| 612 | { |
| 613 | // Load frame size from the BytecodeArray object. |
| 614 | __ mov(ebx, FieldOperand(kInterpreterBytecodeArrayRegister, |
| 615 | BytecodeArray::kFrameSizeOffset)); |
| 616 | |
| 617 | // Do a stack check to ensure we don't go over the limit. |
| 618 | Label ok; |
| 619 | __ mov(ecx, esp); |
| 620 | __ sub(ecx, ebx); |
| 621 | ExternalReference stack_limit = |
| 622 | ExternalReference::address_of_real_stack_limit(masm->isolate()); |
| 623 | __ cmp(ecx, Operand::StaticVariable(stack_limit)); |
| 624 | __ j(above_equal, &ok); |
| 625 | __ CallRuntime(Runtime::kThrowStackOverflow); |
| 626 | __ bind(&ok); |
| 627 | |
| 628 | // If ok, push undefined as the initial value for all register file entries. |
| 629 | Label loop_header; |
| 630 | Label loop_check; |
| 631 | __ mov(eax, Immediate(masm->isolate()->factory()->undefined_value())); |
| 632 | __ jmp(&loop_check); |
| 633 | __ bind(&loop_header); |
| 634 | // TODO(rmcilroy): Consider doing more than one push per loop iteration. |
| 635 | __ push(eax); |
| 636 | // Continue loop if not done. |
| 637 | __ bind(&loop_check); |
| 638 | __ sub(ebx, Immediate(kPointerSize)); |
| 639 | __ j(greater_equal, &loop_header); |
| 640 | } |
| 641 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 642 | // Load accumulator, bytecode offset and dispatch table into registers. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 643 | __ LoadRoot(kInterpreterAccumulatorRegister, Heap::kUndefinedValueRootIndex); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 644 | __ mov(kInterpreterBytecodeOffsetRegister, |
| 645 | Immediate(BytecodeArray::kHeaderSize - kHeapObjectTag)); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 646 | __ mov(kInterpreterDispatchTableRegister, |
| 647 | Immediate(ExternalReference::interpreter_dispatch_table_address( |
| 648 | masm->isolate()))); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 649 | |
| 650 | // Dispatch to the first bytecode handler for the function. |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 651 | __ movzx_b(ebx, Operand(kInterpreterBytecodeArrayRegister, |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 652 | kInterpreterBytecodeOffsetRegister, times_1, 0)); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 653 | __ mov(ebx, Operand(kInterpreterDispatchTableRegister, ebx, |
| 654 | times_pointer_size, 0)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 655 | __ call(ebx); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 656 | masm->isolate()->heap()->SetInterpreterEntryReturnPCOffset(masm->pc_offset()); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 657 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 658 | // The return value is in eax. |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 659 | LeaveInterpreterFrame(masm, ebx, ecx); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 660 | __ ret(0); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 661 | |
| 662 | // Load debug copy of the bytecode array. |
| 663 | __ bind(&load_debug_bytecode_array); |
| 664 | Register debug_info = kInterpreterBytecodeArrayRegister; |
| 665 | __ mov(debug_info, FieldOperand(eax, SharedFunctionInfo::kDebugInfoOffset)); |
| 666 | __ mov(kInterpreterBytecodeArrayRegister, |
| 667 | FieldOperand(debug_info, DebugInfo::kAbstractCodeIndex)); |
| 668 | __ jmp(&bytecode_array_loaded); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 669 | |
| 670 | // If the bytecode array is no longer present, then the underlying function |
| 671 | // has been switched to a different kind of code and we heal the closure by |
| 672 | // switching the code entry field over to the new code object as well. |
| 673 | __ bind(&bytecode_array_not_present); |
| 674 | __ pop(edx); // Callee's new target. |
| 675 | __ pop(edi); // Callee's JS function. |
| 676 | __ pop(esi); // Callee's context. |
| 677 | __ leave(); // Leave the frame so we can tail call. |
| 678 | __ mov(ecx, FieldOperand(edi, JSFunction::kSharedFunctionInfoOffset)); |
| 679 | __ mov(ecx, FieldOperand(ecx, SharedFunctionInfo::kCodeOffset)); |
| 680 | __ lea(ecx, FieldOperand(ecx, Code::kHeaderSize)); |
| 681 | __ mov(FieldOperand(edi, JSFunction::kCodeEntryOffset), ecx); |
| 682 | __ RecordWriteCodeEntryField(edi, ecx, ebx); |
| 683 | __ jmp(ecx); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 684 | } |
| 685 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 686 | void Builtins::Generate_InterpreterMarkBaselineOnReturn(MacroAssembler* masm) { |
| 687 | // Save the function and context for call to CompileBaseline. |
| 688 | __ mov(edi, Operand(ebp, StandardFrameConstants::kFunctionOffset)); |
| 689 | __ mov(kContextRegister, |
| 690 | Operand(ebp, StandardFrameConstants::kContextOffset)); |
| 691 | |
| 692 | // Leave the frame before recompiling for baseline so that we don't count as |
| 693 | // an activation on the stack. |
| 694 | LeaveInterpreterFrame(masm, ebx, ecx); |
| 695 | |
| 696 | { |
| 697 | FrameScope frame_scope(masm, StackFrame::INTERNAL); |
| 698 | // Push return value. |
| 699 | __ push(eax); |
| 700 | |
| 701 | // Push function as argument and compile for baseline. |
| 702 | __ push(edi); |
| 703 | __ CallRuntime(Runtime::kCompileBaseline); |
| 704 | |
| 705 | // Restore return value. |
| 706 | __ pop(eax); |
| 707 | } |
| 708 | __ ret(0); |
| 709 | } |
| 710 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 711 | static void Generate_InterpreterPushArgs(MacroAssembler* masm, |
| 712 | Register array_limit) { |
| 713 | // ----------- S t a t e ------------- |
| 714 | // -- ebx : Pointer to the last argument in the args array. |
| 715 | // -- array_limit : Pointer to one before the first argument in the |
| 716 | // args array. |
| 717 | // ----------------------------------- |
| 718 | Label loop_header, loop_check; |
| 719 | __ jmp(&loop_check); |
| 720 | __ bind(&loop_header); |
| 721 | __ Push(Operand(ebx, 0)); |
| 722 | __ sub(ebx, Immediate(kPointerSize)); |
| 723 | __ bind(&loop_check); |
| 724 | __ cmp(ebx, array_limit); |
| 725 | __ j(greater, &loop_header, Label::kNear); |
| 726 | } |
| 727 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 728 | // static |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 729 | void Builtins::Generate_InterpreterPushArgsAndCallImpl( |
| 730 | MacroAssembler* masm, TailCallMode tail_call_mode) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 731 | // ----------- S t a t e ------------- |
| 732 | // -- eax : the number of arguments (not including the receiver) |
| 733 | // -- ebx : the address of the first argument to be pushed. Subsequent |
| 734 | // arguments should be consecutive above this, in the same order as |
| 735 | // they are to be pushed onto the stack. |
| 736 | // -- edi : the target to call (can be any Object). |
| 737 | // ----------------------------------- |
| 738 | |
| 739 | // Pop return address to allow tail-call after pushing arguments. |
| 740 | __ Pop(edx); |
| 741 | |
| 742 | // Find the address of the last argument. |
| 743 | __ mov(ecx, eax); |
| 744 | __ add(ecx, Immediate(1)); // Add one for receiver. |
| 745 | __ shl(ecx, kPointerSizeLog2); |
| 746 | __ neg(ecx); |
| 747 | __ add(ecx, ebx); |
| 748 | |
| 749 | Generate_InterpreterPushArgs(masm, ecx); |
| 750 | |
| 751 | // Call the target. |
| 752 | __ Push(edx); // Re-push return address. |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 753 | __ Jump(masm->isolate()->builtins()->Call(ConvertReceiverMode::kAny, |
| 754 | tail_call_mode), |
| 755 | RelocInfo::CODE_TARGET); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 756 | } |
| 757 | |
| 758 | |
| 759 | // static |
| 760 | void Builtins::Generate_InterpreterPushArgsAndConstruct(MacroAssembler* masm) { |
| 761 | // ----------- S t a t e ------------- |
| 762 | // -- eax : the number of arguments (not including the receiver) |
| 763 | // -- edx : the new target |
| 764 | // -- edi : the constructor |
| 765 | // -- ebx : the address of the first argument to be pushed. Subsequent |
| 766 | // arguments should be consecutive above this, in the same order as |
| 767 | // they are to be pushed onto the stack. |
| 768 | // ----------------------------------- |
| 769 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 770 | // Pop return address to allow tail-call after pushing arguments. |
| 771 | __ Pop(ecx); |
| 772 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 773 | // Push edi in the slot meant for receiver. We need an extra register |
| 774 | // so store edi temporarily on stack. |
| 775 | __ Push(edi); |
| 776 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 777 | // Find the address of the last argument. |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 778 | __ mov(edi, eax); |
| 779 | __ neg(edi); |
| 780 | __ shl(edi, kPointerSizeLog2); |
| 781 | __ add(edi, ebx); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 782 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 783 | Generate_InterpreterPushArgs(masm, edi); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 784 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 785 | // Restore the constructor from slot on stack. It was pushed at the slot |
| 786 | // meant for receiver. |
| 787 | __ mov(edi, Operand(esp, eax, times_pointer_size, 0)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 788 | |
| 789 | // Re-push return address. |
| 790 | __ Push(ecx); |
| 791 | |
| 792 | // Call the constructor with unmodified eax, edi, ebi values. |
| 793 | __ Jump(masm->isolate()->builtins()->Construct(), RelocInfo::CODE_TARGET); |
| 794 | } |
| 795 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 796 | void Builtins::Generate_InterpreterEnterBytecodeDispatch(MacroAssembler* masm) { |
| 797 | // Set the return address to the correct point in the interpreter entry |
| 798 | // trampoline. |
| 799 | Smi* interpreter_entry_return_pc_offset( |
| 800 | masm->isolate()->heap()->interpreter_entry_return_pc_offset()); |
| 801 | DCHECK_NE(interpreter_entry_return_pc_offset, Smi::FromInt(0)); |
| 802 | __ LoadHeapObject(ebx, |
| 803 | masm->isolate()->builtins()->InterpreterEntryTrampoline()); |
| 804 | __ add(ebx, Immediate(interpreter_entry_return_pc_offset->value() + |
| 805 | Code::kHeaderSize - kHeapObjectTag)); |
| 806 | __ push(ebx); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 807 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 808 | // Initialize the dispatch table register. |
| 809 | __ mov(kInterpreterDispatchTableRegister, |
| 810 | Immediate(ExternalReference::interpreter_dispatch_table_address( |
| 811 | masm->isolate()))); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 812 | |
| 813 | // Get the bytecode array pointer from the frame. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 814 | __ mov(kInterpreterBytecodeArrayRegister, |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 815 | Operand(ebp, InterpreterFrameConstants::kBytecodeArrayFromFp)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 816 | |
| 817 | if (FLAG_debug_code) { |
| 818 | // Check function data field is actually a BytecodeArray object. |
| 819 | __ AssertNotSmi(kInterpreterBytecodeArrayRegister); |
| 820 | __ CmpObjectType(kInterpreterBytecodeArrayRegister, BYTECODE_ARRAY_TYPE, |
| 821 | ebx); |
| 822 | __ Assert(equal, kFunctionDataShouldBeBytecodeArrayOnInterpreterEntry); |
| 823 | } |
| 824 | |
| 825 | // Get the target bytecode offset from the frame. |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 826 | __ mov(kInterpreterBytecodeOffsetRegister, |
| 827 | Operand(ebp, InterpreterFrameConstants::kBytecodeOffsetFromFp)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 828 | __ SmiUntag(kInterpreterBytecodeOffsetRegister); |
| 829 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 830 | // Dispatch to the target bytecode. |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 831 | __ movzx_b(ebx, Operand(kInterpreterBytecodeArrayRegister, |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 832 | kInterpreterBytecodeOffsetRegister, times_1, 0)); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 833 | __ mov(ebx, Operand(kInterpreterDispatchTableRegister, ebx, |
| 834 | times_pointer_size, 0)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 835 | __ jmp(ebx); |
| 836 | } |
| 837 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 838 | void Builtins::Generate_CompileLazy(MacroAssembler* masm) { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 839 | // ----------- S t a t e ------------- |
| 840 | // -- eax : argument count (preserved for callee) |
| 841 | // -- edx : new target (preserved for callee) |
| 842 | // -- edi : target function (preserved for callee) |
| 843 | // ----------------------------------- |
| 844 | // First lookup code, maybe we don't need to compile! |
| 845 | Label gotta_call_runtime, gotta_call_runtime_no_stack; |
| 846 | Label maybe_call_runtime; |
| 847 | Label try_shared; |
| 848 | Label loop_top, loop_bottom; |
| 849 | |
| 850 | Register closure = edi; |
| 851 | Register new_target = edx; |
| 852 | Register argument_count = eax; |
| 853 | |
| 854 | __ push(argument_count); |
| 855 | __ push(new_target); |
| 856 | __ push(closure); |
| 857 | |
| 858 | Register map = argument_count; |
| 859 | Register index = ebx; |
| 860 | __ mov(map, FieldOperand(closure, JSFunction::kSharedFunctionInfoOffset)); |
| 861 | __ mov(map, FieldOperand(map, SharedFunctionInfo::kOptimizedCodeMapOffset)); |
| 862 | __ mov(index, FieldOperand(map, FixedArray::kLengthOffset)); |
| 863 | __ cmp(index, Immediate(Smi::FromInt(2))); |
| 864 | __ j(less, &gotta_call_runtime); |
| 865 | |
| 866 | // Find literals. |
| 867 | // edx : native context |
| 868 | // ebx : length / index |
| 869 | // eax : optimized code map |
| 870 | // stack[0] : new target |
| 871 | // stack[4] : closure |
| 872 | Register native_context = edx; |
| 873 | __ mov(native_context, NativeContextOperand()); |
| 874 | |
| 875 | __ bind(&loop_top); |
| 876 | Register temp = edi; |
| 877 | |
| 878 | // Does the native context match? |
| 879 | __ mov(temp, FieldOperand(map, index, times_half_pointer_size, |
| 880 | SharedFunctionInfo::kOffsetToPreviousContext)); |
| 881 | __ mov(temp, FieldOperand(temp, WeakCell::kValueOffset)); |
| 882 | __ cmp(temp, native_context); |
| 883 | __ j(not_equal, &loop_bottom); |
| 884 | // OSR id set to none? |
| 885 | __ mov(temp, FieldOperand(map, index, times_half_pointer_size, |
| 886 | SharedFunctionInfo::kOffsetToPreviousOsrAstId)); |
| 887 | const int bailout_id = BailoutId::None().ToInt(); |
| 888 | __ cmp(temp, Immediate(Smi::FromInt(bailout_id))); |
| 889 | __ j(not_equal, &loop_bottom); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 890 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 891 | // Literals available? |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 892 | Label got_literals, maybe_cleared_weakcell; |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 893 | __ mov(temp, FieldOperand(map, index, times_half_pointer_size, |
| 894 | SharedFunctionInfo::kOffsetToPreviousLiterals)); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 895 | |
| 896 | // temp contains either a WeakCell pointing to the literals array or the |
| 897 | // literals array directly. |
| 898 | STATIC_ASSERT(WeakCell::kValueOffset == FixedArray::kLengthOffset); |
| 899 | __ JumpIfSmi(FieldOperand(temp, WeakCell::kValueOffset), |
| 900 | &maybe_cleared_weakcell); |
| 901 | // The WeakCell value is a pointer, therefore it's a valid literals array. |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 902 | __ mov(temp, FieldOperand(temp, WeakCell::kValueOffset)); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 903 | __ jmp(&got_literals); |
| 904 | |
| 905 | // We have a smi. If it's 0, then we are looking at a cleared WeakCell |
| 906 | // around the literals array, and we should visit the runtime. If it's > 0, |
| 907 | // then temp already contains the literals array. |
| 908 | __ bind(&maybe_cleared_weakcell); |
| 909 | __ cmp(FieldOperand(temp, WeakCell::kValueOffset), Immediate(0)); |
| 910 | __ j(equal, &gotta_call_runtime); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 911 | |
| 912 | // Save the literals in the closure. |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 913 | __ bind(&got_literals); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 914 | __ mov(ecx, Operand(esp, 0)); |
| 915 | __ mov(FieldOperand(ecx, JSFunction::kLiteralsOffset), temp); |
| 916 | __ push(index); |
| 917 | __ RecordWriteField(ecx, JSFunction::kLiteralsOffset, temp, index, |
| 918 | kDontSaveFPRegs, EMIT_REMEMBERED_SET, OMIT_SMI_CHECK); |
| 919 | __ pop(index); |
| 920 | |
| 921 | // Code available? |
| 922 | Register entry = ecx; |
| 923 | __ mov(entry, FieldOperand(map, index, times_half_pointer_size, |
| 924 | SharedFunctionInfo::kOffsetToPreviousCachedCode)); |
| 925 | __ mov(entry, FieldOperand(entry, WeakCell::kValueOffset)); |
| 926 | __ JumpIfSmi(entry, &maybe_call_runtime); |
| 927 | |
| 928 | // Found literals and code. Get them into the closure and return. |
| 929 | __ pop(closure); |
| 930 | // Store code entry in the closure. |
| 931 | __ lea(entry, FieldOperand(entry, Code::kHeaderSize)); |
| 932 | |
| 933 | Label install_optimized_code_and_tailcall; |
| 934 | __ bind(&install_optimized_code_and_tailcall); |
| 935 | __ mov(FieldOperand(closure, JSFunction::kCodeEntryOffset), entry); |
| 936 | __ RecordWriteCodeEntryField(closure, entry, eax); |
| 937 | |
| 938 | // Link the closure into the optimized function list. |
| 939 | // ecx : code entry |
| 940 | // edx : native context |
| 941 | // edi : closure |
| 942 | __ mov(ebx, |
| 943 | ContextOperand(native_context, Context::OPTIMIZED_FUNCTIONS_LIST)); |
| 944 | __ mov(FieldOperand(closure, JSFunction::kNextFunctionLinkOffset), ebx); |
| 945 | __ RecordWriteField(closure, JSFunction::kNextFunctionLinkOffset, ebx, eax, |
| 946 | kDontSaveFPRegs, EMIT_REMEMBERED_SET, OMIT_SMI_CHECK); |
| 947 | const int function_list_offset = |
| 948 | Context::SlotOffset(Context::OPTIMIZED_FUNCTIONS_LIST); |
| 949 | __ mov(ContextOperand(native_context, Context::OPTIMIZED_FUNCTIONS_LIST), |
| 950 | closure); |
| 951 | // Save closure before the write barrier. |
| 952 | __ mov(ebx, closure); |
| 953 | __ RecordWriteContextSlot(native_context, function_list_offset, closure, eax, |
| 954 | kDontSaveFPRegs); |
| 955 | __ mov(closure, ebx); |
| 956 | __ pop(new_target); |
| 957 | __ pop(argument_count); |
| 958 | __ jmp(entry); |
| 959 | |
| 960 | __ bind(&loop_bottom); |
| 961 | __ sub(index, Immediate(Smi::FromInt(SharedFunctionInfo::kEntryLength))); |
| 962 | __ cmp(index, Immediate(Smi::FromInt(1))); |
| 963 | __ j(greater, &loop_top); |
| 964 | |
| 965 | // We found neither literals nor code. |
| 966 | __ jmp(&gotta_call_runtime); |
| 967 | |
| 968 | __ bind(&maybe_call_runtime); |
| 969 | __ pop(closure); |
| 970 | |
| 971 | // Last possibility. Check the context free optimized code map entry. |
| 972 | __ mov(entry, FieldOperand(map, FixedArray::kHeaderSize + |
| 973 | SharedFunctionInfo::kSharedCodeIndex)); |
| 974 | __ mov(entry, FieldOperand(entry, WeakCell::kValueOffset)); |
| 975 | __ JumpIfSmi(entry, &try_shared); |
| 976 | |
| 977 | // Store code entry in the closure. |
| 978 | __ lea(entry, FieldOperand(entry, Code::kHeaderSize)); |
| 979 | __ jmp(&install_optimized_code_and_tailcall); |
| 980 | |
| 981 | __ bind(&try_shared); |
| 982 | __ pop(new_target); |
| 983 | __ pop(argument_count); |
| 984 | // Is the full code valid? |
| 985 | __ mov(entry, FieldOperand(closure, JSFunction::kSharedFunctionInfoOffset)); |
| 986 | __ mov(entry, FieldOperand(entry, SharedFunctionInfo::kCodeOffset)); |
| 987 | __ mov(ebx, FieldOperand(entry, Code::kFlagsOffset)); |
| 988 | __ and_(ebx, Code::KindField::kMask); |
| 989 | __ shr(ebx, Code::KindField::kShift); |
| 990 | __ cmp(ebx, Immediate(Code::BUILTIN)); |
| 991 | __ j(equal, &gotta_call_runtime_no_stack); |
| 992 | // Yes, install the full code. |
| 993 | __ lea(entry, FieldOperand(entry, Code::kHeaderSize)); |
| 994 | __ mov(FieldOperand(closure, JSFunction::kCodeEntryOffset), entry); |
| 995 | __ RecordWriteCodeEntryField(closure, entry, ebx); |
| 996 | __ jmp(entry); |
| 997 | |
| 998 | __ bind(&gotta_call_runtime); |
| 999 | __ pop(closure); |
| 1000 | __ pop(new_target); |
| 1001 | __ pop(argument_count); |
| 1002 | __ bind(&gotta_call_runtime_no_stack); |
| 1003 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1004 | GenerateTailCallToReturnedCode(masm, Runtime::kCompileLazy); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1005 | } |
| 1006 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 1007 | void Builtins::Generate_CompileBaseline(MacroAssembler* masm) { |
| 1008 | GenerateTailCallToReturnedCode(masm, Runtime::kCompileBaseline); |
| 1009 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1010 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1011 | void Builtins::Generate_CompileOptimized(MacroAssembler* masm) { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1012 | GenerateTailCallToReturnedCode(masm, |
| 1013 | Runtime::kCompileOptimized_NotConcurrent); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1014 | } |
| 1015 | |
| 1016 | |
| 1017 | void Builtins::Generate_CompileOptimizedConcurrent(MacroAssembler* masm) { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1018 | GenerateTailCallToReturnedCode(masm, Runtime::kCompileOptimized_Concurrent); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1019 | } |
| 1020 | |
| 1021 | |
| 1022 | static void GenerateMakeCodeYoungAgainCommon(MacroAssembler* masm) { |
| 1023 | // For now, we are relying on the fact that make_code_young doesn't do any |
| 1024 | // garbage collection which allows us to save/restore the registers without |
| 1025 | // worrying about which of them contain pointers. We also don't build an |
| 1026 | // internal frame to make the code faster, since we shouldn't have to do stack |
| 1027 | // crawls in MakeCodeYoung. This seems a bit fragile. |
| 1028 | |
| 1029 | // Re-execute the code that was patched back to the young age when |
| 1030 | // the stub returns. |
| 1031 | __ sub(Operand(esp, 0), Immediate(5)); |
| 1032 | __ pushad(); |
| 1033 | __ mov(eax, Operand(esp, 8 * kPointerSize)); |
| 1034 | { |
| 1035 | FrameScope scope(masm, StackFrame::MANUAL); |
| 1036 | __ PrepareCallCFunction(2, ebx); |
| 1037 | __ mov(Operand(esp, 1 * kPointerSize), |
| 1038 | Immediate(ExternalReference::isolate_address(masm->isolate()))); |
| 1039 | __ mov(Operand(esp, 0), eax); |
| 1040 | __ CallCFunction( |
| 1041 | ExternalReference::get_make_code_young_function(masm->isolate()), 2); |
| 1042 | } |
| 1043 | __ popad(); |
| 1044 | __ ret(0); |
| 1045 | } |
| 1046 | |
| 1047 | #define DEFINE_CODE_AGE_BUILTIN_GENERATOR(C) \ |
| 1048 | void Builtins::Generate_Make##C##CodeYoungAgainEvenMarking( \ |
| 1049 | MacroAssembler* masm) { \ |
| 1050 | GenerateMakeCodeYoungAgainCommon(masm); \ |
| 1051 | } \ |
| 1052 | void Builtins::Generate_Make##C##CodeYoungAgainOddMarking( \ |
| 1053 | MacroAssembler* masm) { \ |
| 1054 | GenerateMakeCodeYoungAgainCommon(masm); \ |
| 1055 | } |
| 1056 | CODE_AGE_LIST(DEFINE_CODE_AGE_BUILTIN_GENERATOR) |
| 1057 | #undef DEFINE_CODE_AGE_BUILTIN_GENERATOR |
| 1058 | |
| 1059 | |
| 1060 | void Builtins::Generate_MarkCodeAsExecutedOnce(MacroAssembler* masm) { |
| 1061 | // For now, as in GenerateMakeCodeYoungAgainCommon, we are relying on the fact |
| 1062 | // that make_code_young doesn't do any garbage collection which allows us to |
| 1063 | // save/restore the registers without worrying about which of them contain |
| 1064 | // pointers. |
| 1065 | __ pushad(); |
| 1066 | __ mov(eax, Operand(esp, 8 * kPointerSize)); |
| 1067 | __ sub(eax, Immediate(Assembler::kCallInstructionLength)); |
| 1068 | { // NOLINT |
| 1069 | FrameScope scope(masm, StackFrame::MANUAL); |
| 1070 | __ PrepareCallCFunction(2, ebx); |
| 1071 | __ mov(Operand(esp, 1 * kPointerSize), |
| 1072 | Immediate(ExternalReference::isolate_address(masm->isolate()))); |
| 1073 | __ mov(Operand(esp, 0), eax); |
| 1074 | __ CallCFunction( |
| 1075 | ExternalReference::get_mark_code_as_executed_function(masm->isolate()), |
| 1076 | 2); |
| 1077 | } |
| 1078 | __ popad(); |
| 1079 | |
| 1080 | // Perform prologue operations usually performed by the young code stub. |
| 1081 | __ pop(eax); // Pop return address into scratch register. |
| 1082 | __ push(ebp); // Caller's frame pointer. |
| 1083 | __ mov(ebp, esp); |
| 1084 | __ push(esi); // Callee's context. |
| 1085 | __ push(edi); // Callee's JS Function. |
| 1086 | __ push(eax); // Push return address after frame prologue. |
| 1087 | |
| 1088 | // Jump to point after the code-age stub. |
| 1089 | __ ret(0); |
| 1090 | } |
| 1091 | |
| 1092 | |
| 1093 | void Builtins::Generate_MarkCodeAsExecutedTwice(MacroAssembler* masm) { |
| 1094 | GenerateMakeCodeYoungAgainCommon(masm); |
| 1095 | } |
| 1096 | |
| 1097 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1098 | void Builtins::Generate_MarkCodeAsToBeExecutedOnce(MacroAssembler* masm) { |
| 1099 | Generate_MarkCodeAsExecutedOnce(masm); |
| 1100 | } |
| 1101 | |
| 1102 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1103 | static void Generate_NotifyStubFailureHelper(MacroAssembler* masm, |
| 1104 | SaveFPRegsMode save_doubles) { |
| 1105 | // Enter an internal frame. |
| 1106 | { |
| 1107 | FrameScope scope(masm, StackFrame::INTERNAL); |
| 1108 | |
| 1109 | // Preserve registers across notification, this is important for compiled |
| 1110 | // stubs that tail call the runtime on deopts passing their parameters in |
| 1111 | // registers. |
| 1112 | __ pushad(); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1113 | __ CallRuntime(Runtime::kNotifyStubFailure, save_doubles); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1114 | __ popad(); |
| 1115 | // Tear down internal frame. |
| 1116 | } |
| 1117 | |
| 1118 | __ pop(MemOperand(esp, 0)); // Ignore state offset |
| 1119 | __ ret(0); // Return to IC Miss stub, continuation still on stack. |
| 1120 | } |
| 1121 | |
| 1122 | |
| 1123 | void Builtins::Generate_NotifyStubFailure(MacroAssembler* masm) { |
| 1124 | Generate_NotifyStubFailureHelper(masm, kDontSaveFPRegs); |
| 1125 | } |
| 1126 | |
| 1127 | |
| 1128 | void Builtins::Generate_NotifyStubFailureSaveDoubles(MacroAssembler* masm) { |
| 1129 | Generate_NotifyStubFailureHelper(masm, kSaveFPRegs); |
| 1130 | } |
| 1131 | |
| 1132 | |
| 1133 | static void Generate_NotifyDeoptimizedHelper(MacroAssembler* masm, |
| 1134 | Deoptimizer::BailoutType type) { |
| 1135 | { |
| 1136 | FrameScope scope(masm, StackFrame::INTERNAL); |
| 1137 | |
| 1138 | // Pass deoptimization type to the runtime system. |
| 1139 | __ push(Immediate(Smi::FromInt(static_cast<int>(type)))); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1140 | __ CallRuntime(Runtime::kNotifyDeoptimized); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1141 | |
| 1142 | // Tear down internal frame. |
| 1143 | } |
| 1144 | |
| 1145 | // Get the full codegen state from the stack and untag it. |
| 1146 | __ mov(ecx, Operand(esp, 1 * kPointerSize)); |
| 1147 | __ SmiUntag(ecx); |
| 1148 | |
| 1149 | // Switch on the state. |
| 1150 | Label not_no_registers, not_tos_eax; |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 1151 | __ cmp(ecx, static_cast<int>(Deoptimizer::BailoutState::NO_REGISTERS)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1152 | __ j(not_equal, ¬_no_registers, Label::kNear); |
| 1153 | __ ret(1 * kPointerSize); // Remove state. |
| 1154 | |
| 1155 | __ bind(¬_no_registers); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 1156 | DCHECK_EQ(kInterpreterAccumulatorRegister.code(), eax.code()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1157 | __ mov(eax, Operand(esp, 2 * kPointerSize)); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 1158 | __ cmp(ecx, static_cast<int>(Deoptimizer::BailoutState::TOS_REGISTER)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1159 | __ j(not_equal, ¬_tos_eax, Label::kNear); |
| 1160 | __ ret(2 * kPointerSize); // Remove state, eax. |
| 1161 | |
| 1162 | __ bind(¬_tos_eax); |
| 1163 | __ Abort(kNoCasesLeft); |
| 1164 | } |
| 1165 | |
| 1166 | |
| 1167 | void Builtins::Generate_NotifyDeoptimized(MacroAssembler* masm) { |
| 1168 | Generate_NotifyDeoptimizedHelper(masm, Deoptimizer::EAGER); |
| 1169 | } |
| 1170 | |
| 1171 | |
| 1172 | void Builtins::Generate_NotifySoftDeoptimized(MacroAssembler* masm) { |
| 1173 | Generate_NotifyDeoptimizedHelper(masm, Deoptimizer::SOFT); |
| 1174 | } |
| 1175 | |
| 1176 | |
| 1177 | void Builtins::Generate_NotifyLazyDeoptimized(MacroAssembler* masm) { |
| 1178 | Generate_NotifyDeoptimizedHelper(masm, Deoptimizer::LAZY); |
| 1179 | } |
| 1180 | |
| 1181 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1182 | // static |
| 1183 | void Builtins::Generate_DatePrototype_GetField(MacroAssembler* masm, |
| 1184 | int field_index) { |
| 1185 | // ----------- S t a t e ------------- |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 1186 | // -- eax : number of arguments |
| 1187 | // -- edi : function |
| 1188 | // -- esi : context |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1189 | // -- esp[0] : return address |
| 1190 | // -- esp[4] : receiver |
| 1191 | // ----------------------------------- |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1192 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1193 | // 1. Load receiver into eax and check that it's actually a JSDate object. |
| 1194 | Label receiver_not_date; |
| 1195 | { |
| 1196 | __ mov(eax, Operand(esp, kPointerSize)); |
| 1197 | __ JumpIfSmi(eax, &receiver_not_date); |
| 1198 | __ CmpObjectType(eax, JS_DATE_TYPE, ebx); |
| 1199 | __ j(not_equal, &receiver_not_date); |
| 1200 | } |
| 1201 | |
| 1202 | // 2. Load the specified date field, falling back to the runtime as necessary. |
| 1203 | if (field_index == JSDate::kDateValue) { |
| 1204 | __ mov(eax, FieldOperand(eax, JSDate::kValueOffset)); |
| 1205 | } else { |
| 1206 | if (field_index < JSDate::kFirstUncachedField) { |
| 1207 | Label stamp_mismatch; |
| 1208 | __ mov(edx, Operand::StaticVariable( |
| 1209 | ExternalReference::date_cache_stamp(masm->isolate()))); |
| 1210 | __ cmp(edx, FieldOperand(eax, JSDate::kCacheStampOffset)); |
| 1211 | __ j(not_equal, &stamp_mismatch, Label::kNear); |
| 1212 | __ mov(eax, FieldOperand( |
| 1213 | eax, JSDate::kValueOffset + field_index * kPointerSize)); |
| 1214 | __ ret(1 * kPointerSize); |
| 1215 | __ bind(&stamp_mismatch); |
| 1216 | } |
| 1217 | FrameScope scope(masm, StackFrame::INTERNAL); |
| 1218 | __ PrepareCallCFunction(2, ebx); |
| 1219 | __ mov(Operand(esp, 0), eax); |
| 1220 | __ mov(Operand(esp, 1 * kPointerSize), |
| 1221 | Immediate(Smi::FromInt(field_index))); |
| 1222 | __ CallCFunction( |
| 1223 | ExternalReference::get_date_field_function(masm->isolate()), 2); |
| 1224 | } |
| 1225 | __ ret(1 * kPointerSize); |
| 1226 | |
| 1227 | // 3. Raise a TypeError if the receiver is not a date. |
| 1228 | __ bind(&receiver_not_date); |
| 1229 | { |
| 1230 | FrameScope scope(masm, StackFrame::MANUAL); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 1231 | __ Push(ebp); |
| 1232 | __ Move(ebp, esp); |
| 1233 | __ Push(esi); |
| 1234 | __ Push(edi); |
| 1235 | __ Push(Immediate(0)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1236 | __ CallRuntime(Runtime::kThrowNotDateError); |
| 1237 | } |
| 1238 | } |
| 1239 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1240 | // static |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1241 | void Builtins::Generate_FunctionPrototypeApply(MacroAssembler* masm) { |
| 1242 | // ----------- S t a t e ------------- |
| 1243 | // -- eax : argc |
| 1244 | // -- esp[0] : return address |
| 1245 | // -- esp[4] : argArray |
| 1246 | // -- esp[8] : thisArg |
| 1247 | // -- esp[12] : receiver |
| 1248 | // ----------------------------------- |
| 1249 | |
| 1250 | // 1. Load receiver into edi, argArray into eax (if present), remove all |
| 1251 | // arguments from the stack (including the receiver), and push thisArg (if |
| 1252 | // present) instead. |
| 1253 | { |
| 1254 | Label no_arg_array, no_this_arg; |
| 1255 | __ LoadRoot(edx, Heap::kUndefinedValueRootIndex); |
| 1256 | __ mov(ebx, edx); |
| 1257 | __ mov(edi, Operand(esp, eax, times_pointer_size, kPointerSize)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1258 | __ test(eax, eax); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1259 | __ j(zero, &no_this_arg, Label::kNear); |
| 1260 | { |
| 1261 | __ mov(edx, Operand(esp, eax, times_pointer_size, 0)); |
| 1262 | __ cmp(eax, Immediate(1)); |
| 1263 | __ j(equal, &no_arg_array, Label::kNear); |
| 1264 | __ mov(ebx, Operand(esp, eax, times_pointer_size, -kPointerSize)); |
| 1265 | __ bind(&no_arg_array); |
| 1266 | } |
| 1267 | __ bind(&no_this_arg); |
| 1268 | __ PopReturnAddressTo(ecx); |
| 1269 | __ lea(esp, Operand(esp, eax, times_pointer_size, kPointerSize)); |
| 1270 | __ Push(edx); |
| 1271 | __ PushReturnAddressFrom(ecx); |
| 1272 | __ Move(eax, ebx); |
| 1273 | } |
| 1274 | |
| 1275 | // ----------- S t a t e ------------- |
| 1276 | // -- eax : argArray |
| 1277 | // -- edi : receiver |
| 1278 | // -- esp[0] : return address |
| 1279 | // -- esp[4] : thisArg |
| 1280 | // ----------------------------------- |
| 1281 | |
| 1282 | // 2. Make sure the receiver is actually callable. |
| 1283 | Label receiver_not_callable; |
| 1284 | __ JumpIfSmi(edi, &receiver_not_callable, Label::kNear); |
| 1285 | __ mov(ecx, FieldOperand(edi, HeapObject::kMapOffset)); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1286 | __ test_b(FieldOperand(ecx, Map::kBitFieldOffset), |
| 1287 | Immediate(1 << Map::kIsCallable)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1288 | __ j(zero, &receiver_not_callable, Label::kNear); |
| 1289 | |
| 1290 | // 3. Tail call with no arguments if argArray is null or undefined. |
| 1291 | Label no_arguments; |
| 1292 | __ JumpIfRoot(eax, Heap::kNullValueRootIndex, &no_arguments, Label::kNear); |
| 1293 | __ JumpIfRoot(eax, Heap::kUndefinedValueRootIndex, &no_arguments, |
| 1294 | Label::kNear); |
| 1295 | |
| 1296 | // 4a. Apply the receiver to the given argArray (passing undefined for |
| 1297 | // new.target). |
| 1298 | __ LoadRoot(edx, Heap::kUndefinedValueRootIndex); |
| 1299 | __ Jump(masm->isolate()->builtins()->Apply(), RelocInfo::CODE_TARGET); |
| 1300 | |
| 1301 | // 4b. The argArray is either null or undefined, so we tail call without any |
| 1302 | // arguments to the receiver. |
| 1303 | __ bind(&no_arguments); |
| 1304 | { |
| 1305 | __ Set(eax, 0); |
| 1306 | __ Jump(masm->isolate()->builtins()->Call(), RelocInfo::CODE_TARGET); |
| 1307 | } |
| 1308 | |
| 1309 | // 4c. The receiver is not callable, throw an appropriate TypeError. |
| 1310 | __ bind(&receiver_not_callable); |
| 1311 | { |
| 1312 | __ mov(Operand(esp, kPointerSize), edi); |
| 1313 | __ TailCallRuntime(Runtime::kThrowApplyNonFunction); |
| 1314 | } |
| 1315 | } |
| 1316 | |
| 1317 | |
| 1318 | // static |
| 1319 | void Builtins::Generate_FunctionPrototypeCall(MacroAssembler* masm) { |
| 1320 | // Stack Layout: |
| 1321 | // esp[0] : Return address |
| 1322 | // esp[8] : Argument n |
| 1323 | // esp[16] : Argument n-1 |
| 1324 | // ... |
| 1325 | // esp[8 * n] : Argument 1 |
| 1326 | // esp[8 * (n + 1)] : Receiver (callable to call) |
| 1327 | // |
| 1328 | // eax contains the number of arguments, n, not counting the receiver. |
| 1329 | // |
| 1330 | // 1. Make sure we have at least one argument. |
| 1331 | { |
| 1332 | Label done; |
| 1333 | __ test(eax, eax); |
| 1334 | __ j(not_zero, &done, Label::kNear); |
| 1335 | __ PopReturnAddressTo(ebx); |
| 1336 | __ PushRoot(Heap::kUndefinedValueRootIndex); |
| 1337 | __ PushReturnAddressFrom(ebx); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1338 | __ inc(eax); |
| 1339 | __ bind(&done); |
| 1340 | } |
| 1341 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1342 | // 2. Get the callable to call (passed as receiver) from the stack. |
| 1343 | __ mov(edi, Operand(esp, eax, times_pointer_size, kPointerSize)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1344 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1345 | // 3. Shift arguments and return address one slot down on the stack |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1346 | // (overwriting the original receiver). Adjust argument count to make |
| 1347 | // the original first argument the new receiver. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1348 | { |
| 1349 | Label loop; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1350 | __ mov(ecx, eax); |
| 1351 | __ bind(&loop); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1352 | __ mov(ebx, Operand(esp, ecx, times_pointer_size, 0)); |
| 1353 | __ mov(Operand(esp, ecx, times_pointer_size, kPointerSize), ebx); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1354 | __ dec(ecx); |
| 1355 | __ j(not_sign, &loop); // While non-negative (to copy return address). |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1356 | __ pop(ebx); // Discard copy of return address. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1357 | __ dec(eax); // One fewer argument (first argument is new receiver). |
| 1358 | } |
| 1359 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1360 | // 4. Call the callable. |
| 1361 | __ Jump(masm->isolate()->builtins()->Call(), RelocInfo::CODE_TARGET); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1362 | } |
| 1363 | |
| 1364 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1365 | void Builtins::Generate_ReflectApply(MacroAssembler* masm) { |
| 1366 | // ----------- S t a t e ------------- |
| 1367 | // -- eax : argc |
| 1368 | // -- esp[0] : return address |
| 1369 | // -- esp[4] : argumentsList |
| 1370 | // -- esp[8] : thisArgument |
| 1371 | // -- esp[12] : target |
| 1372 | // -- esp[16] : receiver |
| 1373 | // ----------------------------------- |
| 1374 | |
| 1375 | // 1. Load target into edi (if present), argumentsList into eax (if present), |
| 1376 | // remove all arguments from the stack (including the receiver), and push |
| 1377 | // thisArgument (if present) instead. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1378 | { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1379 | Label done; |
| 1380 | __ LoadRoot(edi, Heap::kUndefinedValueRootIndex); |
| 1381 | __ mov(edx, edi); |
| 1382 | __ mov(ebx, edi); |
| 1383 | __ cmp(eax, Immediate(1)); |
| 1384 | __ j(below, &done, Label::kNear); |
| 1385 | __ mov(edi, Operand(esp, eax, times_pointer_size, -0 * kPointerSize)); |
| 1386 | __ j(equal, &done, Label::kNear); |
| 1387 | __ mov(edx, Operand(esp, eax, times_pointer_size, -1 * kPointerSize)); |
| 1388 | __ cmp(eax, Immediate(3)); |
| 1389 | __ j(below, &done, Label::kNear); |
| 1390 | __ mov(ebx, Operand(esp, eax, times_pointer_size, -2 * kPointerSize)); |
| 1391 | __ bind(&done); |
| 1392 | __ PopReturnAddressTo(ecx); |
| 1393 | __ lea(esp, Operand(esp, eax, times_pointer_size, kPointerSize)); |
| 1394 | __ Push(edx); |
| 1395 | __ PushReturnAddressFrom(ecx); |
| 1396 | __ Move(eax, ebx); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1397 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1398 | |
| 1399 | // ----------- S t a t e ------------- |
| 1400 | // -- eax : argumentsList |
| 1401 | // -- edi : target |
| 1402 | // -- esp[0] : return address |
| 1403 | // -- esp[4] : thisArgument |
| 1404 | // ----------------------------------- |
| 1405 | |
| 1406 | // 2. Make sure the target is actually callable. |
| 1407 | Label target_not_callable; |
| 1408 | __ JumpIfSmi(edi, &target_not_callable, Label::kNear); |
| 1409 | __ mov(ecx, FieldOperand(edi, HeapObject::kMapOffset)); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1410 | __ test_b(FieldOperand(ecx, Map::kBitFieldOffset), |
| 1411 | Immediate(1 << Map::kIsCallable)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1412 | __ j(zero, &target_not_callable, Label::kNear); |
| 1413 | |
| 1414 | // 3a. Apply the target to the given argumentsList (passing undefined for |
| 1415 | // new.target). |
| 1416 | __ LoadRoot(edx, Heap::kUndefinedValueRootIndex); |
| 1417 | __ Jump(masm->isolate()->builtins()->Apply(), RelocInfo::CODE_TARGET); |
| 1418 | |
| 1419 | // 3b. The target is not callable, throw an appropriate TypeError. |
| 1420 | __ bind(&target_not_callable); |
| 1421 | { |
| 1422 | __ mov(Operand(esp, kPointerSize), edi); |
| 1423 | __ TailCallRuntime(Runtime::kThrowApplyNonFunction); |
| 1424 | } |
| 1425 | } |
| 1426 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1427 | void Builtins::Generate_ReflectConstruct(MacroAssembler* masm) { |
| 1428 | // ----------- S t a t e ------------- |
| 1429 | // -- eax : argc |
| 1430 | // -- esp[0] : return address |
| 1431 | // -- esp[4] : new.target (optional) |
| 1432 | // -- esp[8] : argumentsList |
| 1433 | // -- esp[12] : target |
| 1434 | // -- esp[16] : receiver |
| 1435 | // ----------------------------------- |
| 1436 | |
| 1437 | // 1. Load target into edi (if present), argumentsList into eax (if present), |
| 1438 | // new.target into edx (if present, otherwise use target), remove all |
| 1439 | // arguments from the stack (including the receiver), and push thisArgument |
| 1440 | // (if present) instead. |
| 1441 | { |
| 1442 | Label done; |
| 1443 | __ LoadRoot(edi, Heap::kUndefinedValueRootIndex); |
| 1444 | __ mov(edx, edi); |
| 1445 | __ mov(ebx, edi); |
| 1446 | __ cmp(eax, Immediate(1)); |
| 1447 | __ j(below, &done, Label::kNear); |
| 1448 | __ mov(edi, Operand(esp, eax, times_pointer_size, -0 * kPointerSize)); |
| 1449 | __ mov(edx, edi); |
| 1450 | __ j(equal, &done, Label::kNear); |
| 1451 | __ mov(ebx, Operand(esp, eax, times_pointer_size, -1 * kPointerSize)); |
| 1452 | __ cmp(eax, Immediate(3)); |
| 1453 | __ j(below, &done, Label::kNear); |
| 1454 | __ mov(edx, Operand(esp, eax, times_pointer_size, -2 * kPointerSize)); |
| 1455 | __ bind(&done); |
| 1456 | __ PopReturnAddressTo(ecx); |
| 1457 | __ lea(esp, Operand(esp, eax, times_pointer_size, kPointerSize)); |
| 1458 | __ PushRoot(Heap::kUndefinedValueRootIndex); |
| 1459 | __ PushReturnAddressFrom(ecx); |
| 1460 | __ Move(eax, ebx); |
| 1461 | } |
| 1462 | |
| 1463 | // ----------- S t a t e ------------- |
| 1464 | // -- eax : argumentsList |
| 1465 | // -- edx : new.target |
| 1466 | // -- edi : target |
| 1467 | // -- esp[0] : return address |
| 1468 | // -- esp[4] : receiver (undefined) |
| 1469 | // ----------------------------------- |
| 1470 | |
| 1471 | // 2. Make sure the target is actually a constructor. |
| 1472 | Label target_not_constructor; |
| 1473 | __ JumpIfSmi(edi, &target_not_constructor, Label::kNear); |
| 1474 | __ mov(ecx, FieldOperand(edi, HeapObject::kMapOffset)); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1475 | __ test_b(FieldOperand(ecx, Map::kBitFieldOffset), |
| 1476 | Immediate(1 << Map::kIsConstructor)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1477 | __ j(zero, &target_not_constructor, Label::kNear); |
| 1478 | |
| 1479 | // 3. Make sure the target is actually a constructor. |
| 1480 | Label new_target_not_constructor; |
| 1481 | __ JumpIfSmi(edx, &new_target_not_constructor, Label::kNear); |
| 1482 | __ mov(ecx, FieldOperand(edx, HeapObject::kMapOffset)); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1483 | __ test_b(FieldOperand(ecx, Map::kBitFieldOffset), |
| 1484 | Immediate(1 << Map::kIsConstructor)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1485 | __ j(zero, &new_target_not_constructor, Label::kNear); |
| 1486 | |
| 1487 | // 4a. Construct the target with the given new.target and argumentsList. |
| 1488 | __ Jump(masm->isolate()->builtins()->Apply(), RelocInfo::CODE_TARGET); |
| 1489 | |
| 1490 | // 4b. The target is not a constructor, throw an appropriate TypeError. |
| 1491 | __ bind(&target_not_constructor); |
| 1492 | { |
| 1493 | __ mov(Operand(esp, kPointerSize), edi); |
| 1494 | __ TailCallRuntime(Runtime::kThrowCalledNonCallable); |
| 1495 | } |
| 1496 | |
| 1497 | // 4c. The new.target is not a constructor, throw an appropriate TypeError. |
| 1498 | __ bind(&new_target_not_constructor); |
| 1499 | { |
| 1500 | __ mov(Operand(esp, kPointerSize), edx); |
| 1501 | __ TailCallRuntime(Runtime::kThrowCalledNonCallable); |
| 1502 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1503 | } |
| 1504 | |
| 1505 | |
| 1506 | void Builtins::Generate_InternalArrayCode(MacroAssembler* masm) { |
| 1507 | // ----------- S t a t e ------------- |
| 1508 | // -- eax : argc |
| 1509 | // -- esp[0] : return address |
| 1510 | // -- esp[4] : last argument |
| 1511 | // ----------------------------------- |
| 1512 | Label generic_array_code; |
| 1513 | |
| 1514 | // Get the InternalArray function. |
| 1515 | __ LoadGlobalFunction(Context::INTERNAL_ARRAY_FUNCTION_INDEX, edi); |
| 1516 | |
| 1517 | if (FLAG_debug_code) { |
| 1518 | // Initial map for the builtin InternalArray function should be a map. |
| 1519 | __ mov(ebx, FieldOperand(edi, JSFunction::kPrototypeOrInitialMapOffset)); |
| 1520 | // Will both indicate a NULL and a Smi. |
| 1521 | __ test(ebx, Immediate(kSmiTagMask)); |
| 1522 | __ Assert(not_zero, kUnexpectedInitialMapForInternalArrayFunction); |
| 1523 | __ CmpObjectType(ebx, MAP_TYPE, ecx); |
| 1524 | __ Assert(equal, kUnexpectedInitialMapForInternalArrayFunction); |
| 1525 | } |
| 1526 | |
| 1527 | // Run the native code for the InternalArray function called as a normal |
| 1528 | // function. |
| 1529 | // tail call a stub |
| 1530 | InternalArrayConstructorStub stub(masm->isolate()); |
| 1531 | __ TailCallStub(&stub); |
| 1532 | } |
| 1533 | |
| 1534 | |
| 1535 | void Builtins::Generate_ArrayCode(MacroAssembler* masm) { |
| 1536 | // ----------- S t a t e ------------- |
| 1537 | // -- eax : argc |
| 1538 | // -- esp[0] : return address |
| 1539 | // -- esp[4] : last argument |
| 1540 | // ----------------------------------- |
| 1541 | Label generic_array_code; |
| 1542 | |
| 1543 | // Get the Array function. |
| 1544 | __ LoadGlobalFunction(Context::ARRAY_FUNCTION_INDEX, edi); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1545 | __ mov(edx, edi); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1546 | |
| 1547 | if (FLAG_debug_code) { |
| 1548 | // Initial map for the builtin Array function should be a map. |
| 1549 | __ mov(ebx, FieldOperand(edi, JSFunction::kPrototypeOrInitialMapOffset)); |
| 1550 | // Will both indicate a NULL and a Smi. |
| 1551 | __ test(ebx, Immediate(kSmiTagMask)); |
| 1552 | __ Assert(not_zero, kUnexpectedInitialMapForArrayFunction); |
| 1553 | __ CmpObjectType(ebx, MAP_TYPE, ecx); |
| 1554 | __ Assert(equal, kUnexpectedInitialMapForArrayFunction); |
| 1555 | } |
| 1556 | |
| 1557 | // Run the native code for the Array function called as a normal function. |
| 1558 | // tail call a stub |
| 1559 | __ mov(ebx, masm->isolate()->factory()->undefined_value()); |
| 1560 | ArrayConstructorStub stub(masm->isolate()); |
| 1561 | __ TailCallStub(&stub); |
| 1562 | } |
| 1563 | |
| 1564 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1565 | // static |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1566 | void Builtins::Generate_MathMaxMin(MacroAssembler* masm, MathMaxMinKind kind) { |
| 1567 | // ----------- S t a t e ------------- |
| 1568 | // -- eax : number of arguments |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 1569 | // -- edi : function |
| 1570 | // -- esi : context |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1571 | // -- esp[0] : return address |
| 1572 | // -- esp[(argc - n) * 8] : arg[n] (zero-based) |
| 1573 | // -- esp[(argc + 1) * 8] : receiver |
| 1574 | // ----------------------------------- |
| 1575 | Condition const cc = (kind == MathMaxMinKind::kMin) ? below : above; |
| 1576 | Heap::RootListIndex const root_index = |
| 1577 | (kind == MathMaxMinKind::kMin) ? Heap::kInfinityValueRootIndex |
| 1578 | : Heap::kMinusInfinityValueRootIndex; |
| 1579 | const int reg_sel = (kind == MathMaxMinKind::kMin) ? 1 : 0; |
| 1580 | |
| 1581 | // Load the accumulator with the default return value (either -Infinity or |
| 1582 | // +Infinity), with the tagged value in edx and the double value in stx_0. |
| 1583 | __ LoadRoot(edx, root_index); |
| 1584 | __ fld_d(FieldOperand(edx, HeapNumber::kValueOffset)); |
| 1585 | __ Move(ecx, eax); |
| 1586 | |
| 1587 | Label done_loop, loop; |
| 1588 | __ bind(&loop); |
| 1589 | { |
| 1590 | // Check if all parameters done. |
| 1591 | __ test(ecx, ecx); |
| 1592 | __ j(zero, &done_loop); |
| 1593 | |
| 1594 | // Load the next parameter tagged value into ebx. |
| 1595 | __ mov(ebx, Operand(esp, ecx, times_pointer_size, 0)); |
| 1596 | |
| 1597 | // Load the double value of the parameter into stx_1, maybe converting the |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 1598 | // parameter to a number first using the ToNumber builtin if necessary. |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1599 | Label convert, convert_smi, convert_number, done_convert; |
| 1600 | __ bind(&convert); |
| 1601 | __ JumpIfSmi(ebx, &convert_smi); |
| 1602 | __ JumpIfRoot(FieldOperand(ebx, HeapObject::kMapOffset), |
| 1603 | Heap::kHeapNumberMapRootIndex, &convert_number); |
| 1604 | { |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 1605 | // Parameter is not a Number, use the ToNumber builtin to convert it. |
| 1606 | FrameScope scope(masm, StackFrame::MANUAL); |
| 1607 | __ Push(ebp); |
| 1608 | __ Move(ebp, esp); |
| 1609 | __ Push(esi); |
| 1610 | __ Push(edi); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1611 | __ SmiTag(eax); |
| 1612 | __ SmiTag(ecx); |
| 1613 | __ Push(eax); |
| 1614 | __ Push(ecx); |
| 1615 | __ Push(edx); |
| 1616 | __ mov(eax, ebx); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 1617 | __ Call(masm->isolate()->builtins()->ToNumber(), RelocInfo::CODE_TARGET); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1618 | __ mov(ebx, eax); |
| 1619 | __ Pop(edx); |
| 1620 | __ Pop(ecx); |
| 1621 | __ Pop(eax); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 1622 | __ Pop(edi); |
| 1623 | __ Pop(esi); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1624 | { |
| 1625 | // Restore the double accumulator value (stX_0). |
| 1626 | Label restore_smi, done_restore; |
| 1627 | __ JumpIfSmi(edx, &restore_smi, Label::kNear); |
| 1628 | __ fld_d(FieldOperand(edx, HeapNumber::kValueOffset)); |
| 1629 | __ jmp(&done_restore, Label::kNear); |
| 1630 | __ bind(&restore_smi); |
| 1631 | __ SmiUntag(edx); |
| 1632 | __ push(edx); |
| 1633 | __ fild_s(Operand(esp, 0)); |
| 1634 | __ pop(edx); |
| 1635 | __ SmiTag(edx); |
| 1636 | __ bind(&done_restore); |
| 1637 | } |
| 1638 | __ SmiUntag(ecx); |
| 1639 | __ SmiUntag(eax); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 1640 | __ leave(); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1641 | } |
| 1642 | __ jmp(&convert); |
| 1643 | __ bind(&convert_number); |
| 1644 | // Load another value into stx_1 |
| 1645 | __ fld_d(FieldOperand(ebx, HeapNumber::kValueOffset)); |
| 1646 | __ fxch(); |
| 1647 | __ jmp(&done_convert, Label::kNear); |
| 1648 | __ bind(&convert_smi); |
| 1649 | __ SmiUntag(ebx); |
| 1650 | __ push(ebx); |
| 1651 | __ fild_s(Operand(esp, 0)); |
| 1652 | __ pop(ebx); |
| 1653 | __ fxch(); |
| 1654 | __ SmiTag(ebx); |
| 1655 | __ bind(&done_convert); |
| 1656 | |
| 1657 | // Perform the actual comparison with the accumulator value on the left hand |
| 1658 | // side (stx_0) and the next parameter value on the right hand side (stx_1). |
| 1659 | Label compare_equal, compare_nan, compare_swap, done_compare; |
| 1660 | |
| 1661 | // Duplicates the 2 float data for FCmp |
| 1662 | __ fld(1); |
| 1663 | __ fld(1); |
| 1664 | __ FCmp(); |
| 1665 | __ j(parity_even, &compare_nan, Label::kNear); |
| 1666 | __ j(cc, &done_compare, Label::kNear); |
| 1667 | __ j(equal, &compare_equal, Label::kNear); |
| 1668 | |
| 1669 | // Result is on the right hand side(stx_0). |
| 1670 | __ bind(&compare_swap); |
| 1671 | __ fxch(); |
| 1672 | __ mov(edx, ebx); |
| 1673 | __ jmp(&done_compare, Label::kNear); |
| 1674 | |
| 1675 | // At least one side is NaN, which means that the result will be NaN too. |
| 1676 | __ bind(&compare_nan); |
| 1677 | // Set the result on the right hand side (stx_0) to nan |
| 1678 | __ fstp(0); |
| 1679 | __ LoadRoot(edx, Heap::kNanValueRootIndex); |
| 1680 | __ fld_d(FieldOperand(edx, HeapNumber::kValueOffset)); |
| 1681 | __ jmp(&done_compare, Label::kNear); |
| 1682 | |
| 1683 | // Left and right hand side are equal, check for -0 vs. +0. |
| 1684 | __ bind(&compare_equal); |
| 1685 | // Check the sign of the value in reg_sel |
| 1686 | __ fld(reg_sel); |
| 1687 | __ FXamSign(); |
| 1688 | __ j(not_zero, &compare_swap); |
| 1689 | |
| 1690 | __ bind(&done_compare); |
| 1691 | // The right result is on the right hand side(stx_0) |
| 1692 | // and can remove the useless stx_1 now. |
| 1693 | __ fxch(); |
| 1694 | __ fstp(0); |
| 1695 | __ dec(ecx); |
| 1696 | __ jmp(&loop); |
| 1697 | } |
| 1698 | |
| 1699 | __ bind(&done_loop); |
| 1700 | __ PopReturnAddressTo(ecx); |
| 1701 | __ lea(esp, Operand(esp, eax, times_pointer_size, kPointerSize)); |
| 1702 | __ PushReturnAddressFrom(ecx); |
| 1703 | __ mov(eax, edx); |
| 1704 | __ Ret(); |
| 1705 | } |
| 1706 | |
| 1707 | // static |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1708 | void Builtins::Generate_NumberConstructor(MacroAssembler* masm) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1709 | // ----------- S t a t e ------------- |
| 1710 | // -- eax : number of arguments |
| 1711 | // -- edi : constructor function |
| 1712 | // -- esp[0] : return address |
| 1713 | // -- esp[(argc - n) * 4] : arg[n] (zero-based) |
| 1714 | // -- esp[(argc + 1) * 4] : receiver |
| 1715 | // ----------------------------------- |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1716 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1717 | // 1. Load the first argument into eax and get rid of the rest (including the |
| 1718 | // receiver). |
| 1719 | Label no_arguments; |
| 1720 | { |
| 1721 | __ test(eax, eax); |
| 1722 | __ j(zero, &no_arguments, Label::kNear); |
| 1723 | __ mov(ebx, Operand(esp, eax, times_pointer_size, 0)); |
| 1724 | __ PopReturnAddressTo(ecx); |
| 1725 | __ lea(esp, Operand(esp, eax, times_pointer_size, kPointerSize)); |
| 1726 | __ PushReturnAddressFrom(ecx); |
| 1727 | __ mov(eax, ebx); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1728 | } |
| 1729 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1730 | // 2a. Convert the first argument to a number. |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 1731 | __ Jump(masm->isolate()->builtins()->ToNumber(), RelocInfo::CODE_TARGET); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1732 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1733 | // 2b. No arguments, return +0 (already in eax). |
| 1734 | __ bind(&no_arguments); |
| 1735 | __ ret(1 * kPointerSize); |
| 1736 | } |
| 1737 | |
| 1738 | |
| 1739 | // static |
| 1740 | void Builtins::Generate_NumberConstructor_ConstructStub(MacroAssembler* masm) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1741 | // ----------- S t a t e ------------- |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1742 | // -- eax : number of arguments |
| 1743 | // -- edi : constructor function |
| 1744 | // -- edx : new target |
| 1745 | // -- esp[0] : return address |
| 1746 | // -- esp[(argc - n) * 4] : arg[n] (zero-based) |
| 1747 | // -- esp[(argc + 1) * 4] : receiver |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1748 | // ----------------------------------- |
| 1749 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1750 | // 1. Make sure we operate in the context of the called function. |
| 1751 | __ mov(esi, FieldOperand(edi, JSFunction::kContextOffset)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1752 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1753 | // 2. Load the first argument into ebx and get rid of the rest (including the |
| 1754 | // receiver). |
| 1755 | { |
| 1756 | Label no_arguments, done; |
| 1757 | __ test(eax, eax); |
| 1758 | __ j(zero, &no_arguments, Label::kNear); |
| 1759 | __ mov(ebx, Operand(esp, eax, times_pointer_size, 0)); |
| 1760 | __ jmp(&done, Label::kNear); |
| 1761 | __ bind(&no_arguments); |
| 1762 | __ Move(ebx, Smi::FromInt(0)); |
| 1763 | __ bind(&done); |
| 1764 | __ PopReturnAddressTo(ecx); |
| 1765 | __ lea(esp, Operand(esp, eax, times_pointer_size, kPointerSize)); |
| 1766 | __ PushReturnAddressFrom(ecx); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1767 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1768 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1769 | // 3. Make sure ebx is a number. |
| 1770 | { |
| 1771 | Label done_convert; |
| 1772 | __ JumpIfSmi(ebx, &done_convert); |
| 1773 | __ CompareRoot(FieldOperand(ebx, HeapObject::kMapOffset), |
| 1774 | Heap::kHeapNumberMapRootIndex); |
| 1775 | __ j(equal, &done_convert); |
| 1776 | { |
| 1777 | FrameScope scope(masm, StackFrame::INTERNAL); |
| 1778 | __ Push(edi); |
| 1779 | __ Push(edx); |
| 1780 | __ Move(eax, ebx); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 1781 | __ Call(masm->isolate()->builtins()->ToNumber(), RelocInfo::CODE_TARGET); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1782 | __ Move(ebx, eax); |
| 1783 | __ Pop(edx); |
| 1784 | __ Pop(edi); |
| 1785 | } |
| 1786 | __ bind(&done_convert); |
| 1787 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1788 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1789 | // 4. Check if new target and constructor differ. |
| 1790 | Label new_object; |
| 1791 | __ cmp(edx, edi); |
| 1792 | __ j(not_equal, &new_object); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1793 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1794 | // 5. Allocate a JSValue wrapper for the number. |
| 1795 | __ AllocateJSValue(eax, edi, ebx, ecx, &new_object); |
| 1796 | __ Ret(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1797 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1798 | // 6. Fallback to the runtime to create new object. |
| 1799 | __ bind(&new_object); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1800 | { |
| 1801 | FrameScope scope(masm, StackFrame::INTERNAL); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1802 | __ Push(ebx); // the first argument |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1803 | FastNewObjectStub stub(masm->isolate()); |
| 1804 | __ CallStub(&stub); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1805 | __ Pop(FieldOperand(eax, JSValue::kValueOffset)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1806 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1807 | __ Ret(); |
| 1808 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1809 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1810 | |
| 1811 | // static |
| 1812 | void Builtins::Generate_StringConstructor(MacroAssembler* masm) { |
| 1813 | // ----------- S t a t e ------------- |
| 1814 | // -- eax : number of arguments |
| 1815 | // -- edi : constructor function |
| 1816 | // -- esp[0] : return address |
| 1817 | // -- esp[(argc - n) * 4] : arg[n] (zero-based) |
| 1818 | // -- esp[(argc + 1) * 4] : receiver |
| 1819 | // ----------------------------------- |
| 1820 | |
| 1821 | // 1. Load the first argument into eax and get rid of the rest (including the |
| 1822 | // receiver). |
| 1823 | Label no_arguments; |
| 1824 | { |
| 1825 | __ test(eax, eax); |
| 1826 | __ j(zero, &no_arguments, Label::kNear); |
| 1827 | __ mov(ebx, Operand(esp, eax, times_pointer_size, 0)); |
| 1828 | __ PopReturnAddressTo(ecx); |
| 1829 | __ lea(esp, Operand(esp, eax, times_pointer_size, kPointerSize)); |
| 1830 | __ PushReturnAddressFrom(ecx); |
| 1831 | __ mov(eax, ebx); |
| 1832 | } |
| 1833 | |
| 1834 | // 2a. At least one argument, return eax if it's a string, otherwise |
| 1835 | // dispatch to appropriate conversion. |
| 1836 | Label to_string, symbol_descriptive_string; |
| 1837 | { |
| 1838 | __ JumpIfSmi(eax, &to_string, Label::kNear); |
| 1839 | STATIC_ASSERT(FIRST_NONSTRING_TYPE == SYMBOL_TYPE); |
| 1840 | __ CmpObjectType(eax, FIRST_NONSTRING_TYPE, edx); |
| 1841 | __ j(above, &to_string, Label::kNear); |
| 1842 | __ j(equal, &symbol_descriptive_string, Label::kNear); |
| 1843 | __ Ret(); |
| 1844 | } |
| 1845 | |
| 1846 | // 2b. No arguments, return the empty string (and pop the receiver). |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1847 | __ bind(&no_arguments); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1848 | { |
| 1849 | __ LoadRoot(eax, Heap::kempty_stringRootIndex); |
| 1850 | __ ret(1 * kPointerSize); |
| 1851 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1852 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1853 | // 3a. Convert eax to a string. |
| 1854 | __ bind(&to_string); |
| 1855 | { |
| 1856 | ToStringStub stub(masm->isolate()); |
| 1857 | __ TailCallStub(&stub); |
| 1858 | } |
| 1859 | |
| 1860 | // 3b. Convert symbol in eax to a string. |
| 1861 | __ bind(&symbol_descriptive_string); |
| 1862 | { |
| 1863 | __ PopReturnAddressTo(ecx); |
| 1864 | __ Push(eax); |
| 1865 | __ PushReturnAddressFrom(ecx); |
| 1866 | __ TailCallRuntime(Runtime::kSymbolDescriptiveString); |
| 1867 | } |
| 1868 | } |
| 1869 | |
| 1870 | |
| 1871 | // static |
| 1872 | void Builtins::Generate_StringConstructor_ConstructStub(MacroAssembler* masm) { |
| 1873 | // ----------- S t a t e ------------- |
| 1874 | // -- eax : number of arguments |
| 1875 | // -- edi : constructor function |
| 1876 | // -- edx : new target |
| 1877 | // -- esp[0] : return address |
| 1878 | // -- esp[(argc - n) * 4] : arg[n] (zero-based) |
| 1879 | // -- esp[(argc + 1) * 4] : receiver |
| 1880 | // ----------------------------------- |
| 1881 | |
| 1882 | // 1. Make sure we operate in the context of the called function. |
| 1883 | __ mov(esi, FieldOperand(edi, JSFunction::kContextOffset)); |
| 1884 | |
| 1885 | // 2. Load the first argument into ebx and get rid of the rest (including the |
| 1886 | // receiver). |
| 1887 | { |
| 1888 | Label no_arguments, done; |
| 1889 | __ test(eax, eax); |
| 1890 | __ j(zero, &no_arguments, Label::kNear); |
| 1891 | __ mov(ebx, Operand(esp, eax, times_pointer_size, 0)); |
| 1892 | __ jmp(&done, Label::kNear); |
| 1893 | __ bind(&no_arguments); |
| 1894 | __ LoadRoot(ebx, Heap::kempty_stringRootIndex); |
| 1895 | __ bind(&done); |
| 1896 | __ PopReturnAddressTo(ecx); |
| 1897 | __ lea(esp, Operand(esp, eax, times_pointer_size, kPointerSize)); |
| 1898 | __ PushReturnAddressFrom(ecx); |
| 1899 | } |
| 1900 | |
| 1901 | // 3. Make sure ebx is a string. |
| 1902 | { |
| 1903 | Label convert, done_convert; |
| 1904 | __ JumpIfSmi(ebx, &convert, Label::kNear); |
| 1905 | __ CmpObjectType(ebx, FIRST_NONSTRING_TYPE, ecx); |
| 1906 | __ j(below, &done_convert); |
| 1907 | __ bind(&convert); |
| 1908 | { |
| 1909 | FrameScope scope(masm, StackFrame::INTERNAL); |
| 1910 | ToStringStub stub(masm->isolate()); |
| 1911 | __ Push(edi); |
| 1912 | __ Push(edx); |
| 1913 | __ Move(eax, ebx); |
| 1914 | __ CallStub(&stub); |
| 1915 | __ Move(ebx, eax); |
| 1916 | __ Pop(edx); |
| 1917 | __ Pop(edi); |
| 1918 | } |
| 1919 | __ bind(&done_convert); |
| 1920 | } |
| 1921 | |
| 1922 | // 4. Check if new target and constructor differ. |
| 1923 | Label new_object; |
| 1924 | __ cmp(edx, edi); |
| 1925 | __ j(not_equal, &new_object); |
| 1926 | |
| 1927 | // 5. Allocate a JSValue wrapper for the string. |
| 1928 | __ AllocateJSValue(eax, edi, ebx, ecx, &new_object); |
| 1929 | __ Ret(); |
| 1930 | |
| 1931 | // 6. Fallback to the runtime to create new object. |
| 1932 | __ bind(&new_object); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1933 | { |
| 1934 | FrameScope scope(masm, StackFrame::INTERNAL); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1935 | __ Push(ebx); // the first argument |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1936 | FastNewObjectStub stub(masm->isolate()); |
| 1937 | __ CallStub(&stub); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1938 | __ Pop(FieldOperand(eax, JSValue::kValueOffset)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1939 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1940 | __ Ret(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1941 | } |
| 1942 | |
| 1943 | |
| 1944 | static void ArgumentsAdaptorStackCheck(MacroAssembler* masm, |
| 1945 | Label* stack_overflow) { |
| 1946 | // ----------- S t a t e ------------- |
| 1947 | // -- eax : actual number of arguments |
| 1948 | // -- ebx : expected number of arguments |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1949 | // -- edx : new target (passed through to callee) |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1950 | // ----------------------------------- |
| 1951 | // Check the stack for overflow. We are not trying to catch |
| 1952 | // interruptions (e.g. debug break and preemption) here, so the "real stack |
| 1953 | // limit" is checked. |
| 1954 | ExternalReference real_stack_limit = |
| 1955 | ExternalReference::address_of_real_stack_limit(masm->isolate()); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1956 | __ mov(edi, Operand::StaticVariable(real_stack_limit)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1957 | // Make ecx the space we have left. The stack might already be overflowed |
| 1958 | // here which will cause ecx to become negative. |
| 1959 | __ mov(ecx, esp); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1960 | __ sub(ecx, edi); |
| 1961 | // Make edi 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] | 1962 | // stack. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1963 | __ mov(edi, ebx); |
| 1964 | __ shl(edi, kPointerSizeLog2); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1965 | // Check if the arguments will overflow the stack. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1966 | __ cmp(ecx, edi); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1967 | __ j(less_equal, stack_overflow); // Signed comparison. |
| 1968 | } |
| 1969 | |
| 1970 | |
| 1971 | static void EnterArgumentsAdaptorFrame(MacroAssembler* masm) { |
| 1972 | __ push(ebp); |
| 1973 | __ mov(ebp, esp); |
| 1974 | |
| 1975 | // Store the arguments adaptor context sentinel. |
| 1976 | __ push(Immediate(Smi::FromInt(StackFrame::ARGUMENTS_ADAPTOR))); |
| 1977 | |
| 1978 | // Push the function on the stack. |
| 1979 | __ push(edi); |
| 1980 | |
| 1981 | // Preserve the number of arguments on the stack. Must preserve eax, |
| 1982 | // ebx and ecx because these registers are used when copying the |
| 1983 | // arguments and the receiver. |
| 1984 | STATIC_ASSERT(kSmiTagSize == 1); |
| 1985 | __ lea(edi, Operand(eax, eax, times_1, kSmiTag)); |
| 1986 | __ push(edi); |
| 1987 | } |
| 1988 | |
| 1989 | |
| 1990 | static void LeaveArgumentsAdaptorFrame(MacroAssembler* masm) { |
| 1991 | // Retrieve the number of arguments from the stack. |
| 1992 | __ mov(ebx, Operand(ebp, ArgumentsAdaptorFrameConstants::kLengthOffset)); |
| 1993 | |
| 1994 | // Leave the frame. |
| 1995 | __ leave(); |
| 1996 | |
| 1997 | // Remove caller arguments from the stack. |
| 1998 | STATIC_ASSERT(kSmiTagSize == 1 && kSmiTag == 0); |
| 1999 | __ pop(ecx); |
| 2000 | __ lea(esp, Operand(esp, ebx, times_2, 1 * kPointerSize)); // 1 ~ receiver |
| 2001 | __ push(ecx); |
| 2002 | } |
| 2003 | |
| 2004 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2005 | // static |
| 2006 | void Builtins::Generate_Apply(MacroAssembler* masm) { |
| 2007 | // ----------- S t a t e ------------- |
| 2008 | // -- eax : argumentsList |
| 2009 | // -- edi : target |
| 2010 | // -- edx : new.target (checked to be constructor or undefined) |
| 2011 | // -- esp[0] : return address. |
| 2012 | // -- esp[4] : thisArgument |
| 2013 | // ----------------------------------- |
| 2014 | |
| 2015 | // Create the list of arguments from the array-like argumentsList. |
| 2016 | { |
| 2017 | Label create_arguments, create_array, create_runtime, done_create; |
| 2018 | __ JumpIfSmi(eax, &create_runtime); |
| 2019 | |
| 2020 | // Load the map of argumentsList into ecx. |
| 2021 | __ mov(ecx, FieldOperand(eax, HeapObject::kMapOffset)); |
| 2022 | |
| 2023 | // Load native context into ebx. |
| 2024 | __ mov(ebx, NativeContextOperand()); |
| 2025 | |
| 2026 | // Check if argumentsList is an (unmodified) arguments object. |
| 2027 | __ cmp(ecx, ContextOperand(ebx, Context::SLOPPY_ARGUMENTS_MAP_INDEX)); |
| 2028 | __ j(equal, &create_arguments); |
| 2029 | __ cmp(ecx, ContextOperand(ebx, Context::STRICT_ARGUMENTS_MAP_INDEX)); |
| 2030 | __ j(equal, &create_arguments); |
| 2031 | |
| 2032 | // Check if argumentsList is a fast JSArray. |
| 2033 | __ CmpInstanceType(ecx, JS_ARRAY_TYPE); |
| 2034 | __ j(equal, &create_array); |
| 2035 | |
| 2036 | // Ask the runtime to create the list (actually a FixedArray). |
| 2037 | __ bind(&create_runtime); |
| 2038 | { |
| 2039 | FrameScope scope(masm, StackFrame::INTERNAL); |
| 2040 | __ Push(edi); |
| 2041 | __ Push(edx); |
| 2042 | __ Push(eax); |
| 2043 | __ CallRuntime(Runtime::kCreateListFromArrayLike); |
| 2044 | __ Pop(edx); |
| 2045 | __ Pop(edi); |
| 2046 | __ mov(ebx, FieldOperand(eax, FixedArray::kLengthOffset)); |
| 2047 | __ SmiUntag(ebx); |
| 2048 | } |
| 2049 | __ jmp(&done_create); |
| 2050 | |
| 2051 | // Try to create the list from an arguments object. |
| 2052 | __ bind(&create_arguments); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2053 | __ mov(ebx, FieldOperand(eax, JSArgumentsObject::kLengthOffset)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2054 | __ mov(ecx, FieldOperand(eax, JSObject::kElementsOffset)); |
| 2055 | __ cmp(ebx, FieldOperand(ecx, FixedArray::kLengthOffset)); |
| 2056 | __ j(not_equal, &create_runtime); |
| 2057 | __ SmiUntag(ebx); |
| 2058 | __ mov(eax, ecx); |
| 2059 | __ jmp(&done_create); |
| 2060 | |
| 2061 | // Try to create the list from a JSArray object. |
| 2062 | __ bind(&create_array); |
| 2063 | __ mov(ecx, FieldOperand(ecx, Map::kBitField2Offset)); |
| 2064 | __ DecodeField<Map::ElementsKindBits>(ecx); |
| 2065 | STATIC_ASSERT(FAST_SMI_ELEMENTS == 0); |
| 2066 | STATIC_ASSERT(FAST_HOLEY_SMI_ELEMENTS == 1); |
| 2067 | STATIC_ASSERT(FAST_ELEMENTS == 2); |
| 2068 | __ cmp(ecx, Immediate(FAST_ELEMENTS)); |
| 2069 | __ j(above, &create_runtime); |
| 2070 | __ cmp(ecx, Immediate(FAST_HOLEY_SMI_ELEMENTS)); |
| 2071 | __ j(equal, &create_runtime); |
| 2072 | __ mov(ebx, FieldOperand(eax, JSArray::kLengthOffset)); |
| 2073 | __ SmiUntag(ebx); |
| 2074 | __ mov(eax, FieldOperand(eax, JSArray::kElementsOffset)); |
| 2075 | |
| 2076 | __ bind(&done_create); |
| 2077 | } |
| 2078 | |
| 2079 | // Check for stack overflow. |
| 2080 | { |
| 2081 | // Check the stack for overflow. We are not trying to catch interruptions |
| 2082 | // (i.e. debug break and preemption) here, so check the "real stack limit". |
| 2083 | Label done; |
| 2084 | ExternalReference real_stack_limit = |
| 2085 | ExternalReference::address_of_real_stack_limit(masm->isolate()); |
| 2086 | __ mov(ecx, Operand::StaticVariable(real_stack_limit)); |
| 2087 | // Make ecx the space we have left. The stack might already be overflowed |
| 2088 | // here which will cause ecx to become negative. |
| 2089 | __ neg(ecx); |
| 2090 | __ add(ecx, esp); |
| 2091 | __ sar(ecx, kPointerSizeLog2); |
| 2092 | // Check if the arguments will overflow the stack. |
| 2093 | __ cmp(ecx, ebx); |
| 2094 | __ j(greater, &done, Label::kNear); // Signed comparison. |
| 2095 | __ TailCallRuntime(Runtime::kThrowStackOverflow); |
| 2096 | __ bind(&done); |
| 2097 | } |
| 2098 | |
| 2099 | // ----------- S t a t e ------------- |
| 2100 | // -- edi : target |
| 2101 | // -- eax : args (a FixedArray built from argumentsList) |
| 2102 | // -- ebx : len (number of elements to push from args) |
| 2103 | // -- edx : new.target (checked to be constructor or undefined) |
| 2104 | // -- esp[0] : return address. |
| 2105 | // -- esp[4] : thisArgument |
| 2106 | // ----------------------------------- |
| 2107 | |
| 2108 | // Push arguments onto the stack (thisArgument is already on the stack). |
| 2109 | { |
| 2110 | __ push(edx); |
| 2111 | __ fld_s(MemOperand(esp, 0)); |
| 2112 | __ lea(esp, Operand(esp, kFloatSize)); |
| 2113 | |
| 2114 | __ PopReturnAddressTo(edx); |
| 2115 | __ Move(ecx, Immediate(0)); |
| 2116 | Label done, loop; |
| 2117 | __ bind(&loop); |
| 2118 | __ cmp(ecx, ebx); |
| 2119 | __ j(equal, &done, Label::kNear); |
| 2120 | __ Push( |
| 2121 | FieldOperand(eax, ecx, times_pointer_size, FixedArray::kHeaderSize)); |
| 2122 | __ inc(ecx); |
| 2123 | __ jmp(&loop); |
| 2124 | __ bind(&done); |
| 2125 | __ PushReturnAddressFrom(edx); |
| 2126 | |
| 2127 | __ lea(esp, Operand(esp, -kFloatSize)); |
| 2128 | __ fstp_s(MemOperand(esp, 0)); |
| 2129 | __ pop(edx); |
| 2130 | |
| 2131 | __ Move(eax, ebx); |
| 2132 | } |
| 2133 | |
| 2134 | // Dispatch to Call or Construct depending on whether new.target is undefined. |
| 2135 | { |
| 2136 | __ CompareRoot(edx, Heap::kUndefinedValueRootIndex); |
| 2137 | __ j(equal, masm->isolate()->builtins()->Call(), RelocInfo::CODE_TARGET); |
| 2138 | __ Jump(masm->isolate()->builtins()->Construct(), RelocInfo::CODE_TARGET); |
| 2139 | } |
| 2140 | } |
| 2141 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2142 | namespace { |
| 2143 | |
| 2144 | // Drops top JavaScript frame and an arguments adaptor frame below it (if |
| 2145 | // present) preserving all the arguments prepared for current call. |
| 2146 | // Does nothing if debugger is currently active. |
| 2147 | // ES6 14.6.3. PrepareForTailCall |
| 2148 | // |
| 2149 | // Stack structure for the function g() tail calling f(): |
| 2150 | // |
| 2151 | // ------- Caller frame: ------- |
| 2152 | // | ... |
| 2153 | // | g()'s arg M |
| 2154 | // | ... |
| 2155 | // | g()'s arg 1 |
| 2156 | // | g()'s receiver arg |
| 2157 | // | g()'s caller pc |
| 2158 | // ------- g()'s frame: ------- |
| 2159 | // | g()'s caller fp <- fp |
| 2160 | // | g()'s context |
| 2161 | // | function pointer: g |
| 2162 | // | ------------------------- |
| 2163 | // | ... |
| 2164 | // | ... |
| 2165 | // | f()'s arg N |
| 2166 | // | ... |
| 2167 | // | f()'s arg 1 |
| 2168 | // | f()'s receiver arg |
| 2169 | // | f()'s caller pc <- sp |
| 2170 | // ---------------------- |
| 2171 | // |
| 2172 | void PrepareForTailCall(MacroAssembler* masm, Register args_reg, |
| 2173 | Register scratch1, Register scratch2, |
| 2174 | Register scratch3) { |
| 2175 | DCHECK(!AreAliased(args_reg, scratch1, scratch2, scratch3)); |
| 2176 | Comment cmnt(masm, "[ PrepareForTailCall"); |
| 2177 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 2178 | // Prepare for tail call only if ES2015 tail call elimination is enabled. |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2179 | Label done; |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 2180 | ExternalReference is_tail_call_elimination_enabled = |
| 2181 | ExternalReference::is_tail_call_elimination_enabled_address( |
| 2182 | masm->isolate()); |
| 2183 | __ movzx_b(scratch1, |
| 2184 | Operand::StaticVariable(is_tail_call_elimination_enabled)); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2185 | __ cmp(scratch1, Immediate(0)); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 2186 | __ j(equal, &done, Label::kNear); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2187 | |
| 2188 | // Drop possible interpreter handler/stub frame. |
| 2189 | { |
| 2190 | Label no_interpreter_frame; |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 2191 | __ cmp(Operand(ebp, CommonFrameConstants::kContextOrFrameTypeOffset), |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2192 | Immediate(Smi::FromInt(StackFrame::STUB))); |
| 2193 | __ j(not_equal, &no_interpreter_frame, Label::kNear); |
| 2194 | __ mov(ebp, Operand(ebp, StandardFrameConstants::kCallerFPOffset)); |
| 2195 | __ bind(&no_interpreter_frame); |
| 2196 | } |
| 2197 | |
| 2198 | // Check if next frame is an arguments adaptor frame. |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 2199 | Register caller_args_count_reg = scratch1; |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2200 | Label no_arguments_adaptor, formal_parameter_count_loaded; |
| 2201 | __ mov(scratch2, Operand(ebp, StandardFrameConstants::kCallerFPOffset)); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 2202 | __ cmp(Operand(scratch2, CommonFrameConstants::kContextOrFrameTypeOffset), |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2203 | Immediate(Smi::FromInt(StackFrame::ARGUMENTS_ADAPTOR))); |
| 2204 | __ j(not_equal, &no_arguments_adaptor, Label::kNear); |
| 2205 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 2206 | // Drop current frame and load arguments count from arguments adaptor frame. |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2207 | __ mov(ebp, scratch2); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 2208 | __ mov(caller_args_count_reg, |
| 2209 | Operand(ebp, ArgumentsAdaptorFrameConstants::kLengthOffset)); |
| 2210 | __ SmiUntag(caller_args_count_reg); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2211 | __ jmp(&formal_parameter_count_loaded, Label::kNear); |
| 2212 | |
| 2213 | __ bind(&no_arguments_adaptor); |
| 2214 | // Load caller's formal parameter count |
| 2215 | __ mov(scratch1, Operand(ebp, JavaScriptFrameConstants::kFunctionOffset)); |
| 2216 | __ mov(scratch1, |
| 2217 | FieldOperand(scratch1, JSFunction::kSharedFunctionInfoOffset)); |
| 2218 | __ mov( |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 2219 | caller_args_count_reg, |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2220 | FieldOperand(scratch1, SharedFunctionInfo::kFormalParameterCountOffset)); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 2221 | __ SmiUntag(caller_args_count_reg); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2222 | |
| 2223 | __ bind(&formal_parameter_count_loaded); |
| 2224 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 2225 | ParameterCount callee_args_count(args_reg); |
| 2226 | __ PrepareForTailCall(callee_args_count, caller_args_count_reg, scratch2, |
| 2227 | scratch3, ReturnAddressState::kOnStack, 0); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2228 | __ bind(&done); |
| 2229 | } |
| 2230 | } // namespace |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2231 | |
| 2232 | // static |
| 2233 | void Builtins::Generate_CallFunction(MacroAssembler* masm, |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2234 | ConvertReceiverMode mode, |
| 2235 | TailCallMode tail_call_mode) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2236 | // ----------- S t a t e ------------- |
| 2237 | // -- eax : the number of arguments (not including the receiver) |
| 2238 | // -- edi : the function to call (checked to be a JSFunction) |
| 2239 | // ----------------------------------- |
| 2240 | __ AssertFunction(edi); |
| 2241 | |
| 2242 | // See ES6 section 9.2.1 [[Call]] ( thisArgument, argumentsList) |
| 2243 | // Check that the function is not a "classConstructor". |
| 2244 | Label class_constructor; |
| 2245 | __ mov(edx, FieldOperand(edi, JSFunction::kSharedFunctionInfoOffset)); |
| 2246 | __ test_b(FieldOperand(edx, SharedFunctionInfo::kFunctionKindByteOffset), |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 2247 | Immediate(SharedFunctionInfo::kClassConstructorBitsWithinByte)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2248 | __ j(not_zero, &class_constructor); |
| 2249 | |
| 2250 | // Enter the context of the function; ToObject has to run in the function |
| 2251 | // context, and we also need to take the global proxy from the function |
| 2252 | // context in case of conversion. |
| 2253 | STATIC_ASSERT(SharedFunctionInfo::kNativeByteOffset == |
| 2254 | SharedFunctionInfo::kStrictModeByteOffset); |
| 2255 | __ mov(esi, FieldOperand(edi, JSFunction::kContextOffset)); |
| 2256 | // We need to convert the receiver for non-native sloppy mode functions. |
| 2257 | Label done_convert; |
| 2258 | __ test_b(FieldOperand(edx, SharedFunctionInfo::kNativeByteOffset), |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 2259 | Immediate((1 << SharedFunctionInfo::kNativeBitWithinByte) | |
| 2260 | (1 << SharedFunctionInfo::kStrictModeBitWithinByte))); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2261 | __ j(not_zero, &done_convert); |
| 2262 | { |
| 2263 | // ----------- S t a t e ------------- |
| 2264 | // -- eax : the number of arguments (not including the receiver) |
| 2265 | // -- edx : the shared function info. |
| 2266 | // -- edi : the function to call (checked to be a JSFunction) |
| 2267 | // -- esi : the function context. |
| 2268 | // ----------------------------------- |
| 2269 | |
| 2270 | if (mode == ConvertReceiverMode::kNullOrUndefined) { |
| 2271 | // Patch receiver to global proxy. |
| 2272 | __ LoadGlobalProxy(ecx); |
| 2273 | } else { |
| 2274 | Label convert_to_object, convert_receiver; |
| 2275 | __ mov(ecx, Operand(esp, eax, times_pointer_size, kPointerSize)); |
| 2276 | __ JumpIfSmi(ecx, &convert_to_object, Label::kNear); |
| 2277 | STATIC_ASSERT(LAST_JS_RECEIVER_TYPE == LAST_TYPE); |
| 2278 | __ CmpObjectType(ecx, FIRST_JS_RECEIVER_TYPE, ebx); |
| 2279 | __ j(above_equal, &done_convert); |
| 2280 | if (mode != ConvertReceiverMode::kNotNullOrUndefined) { |
| 2281 | Label convert_global_proxy; |
| 2282 | __ JumpIfRoot(ecx, Heap::kUndefinedValueRootIndex, |
| 2283 | &convert_global_proxy, Label::kNear); |
| 2284 | __ JumpIfNotRoot(ecx, Heap::kNullValueRootIndex, &convert_to_object, |
| 2285 | Label::kNear); |
| 2286 | __ bind(&convert_global_proxy); |
| 2287 | { |
| 2288 | // Patch receiver to global proxy. |
| 2289 | __ LoadGlobalProxy(ecx); |
| 2290 | } |
| 2291 | __ jmp(&convert_receiver); |
| 2292 | } |
| 2293 | __ bind(&convert_to_object); |
| 2294 | { |
| 2295 | // Convert receiver using ToObject. |
| 2296 | // TODO(bmeurer): Inline the allocation here to avoid building the frame |
| 2297 | // in the fast case? (fall back to AllocateInNewSpace?) |
| 2298 | FrameScope scope(masm, StackFrame::INTERNAL); |
| 2299 | __ SmiTag(eax); |
| 2300 | __ Push(eax); |
| 2301 | __ Push(edi); |
| 2302 | __ mov(eax, ecx); |
| 2303 | ToObjectStub stub(masm->isolate()); |
| 2304 | __ CallStub(&stub); |
| 2305 | __ mov(ecx, eax); |
| 2306 | __ Pop(edi); |
| 2307 | __ Pop(eax); |
| 2308 | __ SmiUntag(eax); |
| 2309 | } |
| 2310 | __ mov(edx, FieldOperand(edi, JSFunction::kSharedFunctionInfoOffset)); |
| 2311 | __ bind(&convert_receiver); |
| 2312 | } |
| 2313 | __ mov(Operand(esp, eax, times_pointer_size, kPointerSize), ecx); |
| 2314 | } |
| 2315 | __ bind(&done_convert); |
| 2316 | |
| 2317 | // ----------- S t a t e ------------- |
| 2318 | // -- eax : the number of arguments (not including the receiver) |
| 2319 | // -- edx : the shared function info. |
| 2320 | // -- edi : the function to call (checked to be a JSFunction) |
| 2321 | // -- esi : the function context. |
| 2322 | // ----------------------------------- |
| 2323 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2324 | if (tail_call_mode == TailCallMode::kAllow) { |
| 2325 | PrepareForTailCall(masm, eax, ebx, ecx, edx); |
| 2326 | // Reload shared function info. |
| 2327 | __ mov(edx, FieldOperand(edi, JSFunction::kSharedFunctionInfoOffset)); |
| 2328 | } |
| 2329 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2330 | __ mov(ebx, |
| 2331 | FieldOperand(edx, SharedFunctionInfo::kFormalParameterCountOffset)); |
| 2332 | __ SmiUntag(ebx); |
| 2333 | ParameterCount actual(eax); |
| 2334 | ParameterCount expected(ebx); |
| 2335 | __ InvokeFunctionCode(edi, no_reg, expected, actual, JUMP_FUNCTION, |
| 2336 | CheckDebugStepCallWrapper()); |
| 2337 | // The function is a "classConstructor", need to raise an exception. |
| 2338 | __ bind(&class_constructor); |
| 2339 | { |
| 2340 | FrameScope frame(masm, StackFrame::INTERNAL); |
| 2341 | __ push(edi); |
| 2342 | __ CallRuntime(Runtime::kThrowConstructorNonCallableError); |
| 2343 | } |
| 2344 | } |
| 2345 | |
| 2346 | |
| 2347 | namespace { |
| 2348 | |
| 2349 | void Generate_PushBoundArguments(MacroAssembler* masm) { |
| 2350 | // ----------- S t a t e ------------- |
| 2351 | // -- eax : the number of arguments (not including the receiver) |
| 2352 | // -- edx : new.target (only in case of [[Construct]]) |
| 2353 | // -- edi : target (checked to be a JSBoundFunction) |
| 2354 | // ----------------------------------- |
| 2355 | |
| 2356 | // Load [[BoundArguments]] into ecx and length of that into ebx. |
| 2357 | Label no_bound_arguments; |
| 2358 | __ mov(ecx, FieldOperand(edi, JSBoundFunction::kBoundArgumentsOffset)); |
| 2359 | __ mov(ebx, FieldOperand(ecx, FixedArray::kLengthOffset)); |
| 2360 | __ SmiUntag(ebx); |
| 2361 | __ test(ebx, ebx); |
| 2362 | __ j(zero, &no_bound_arguments); |
| 2363 | { |
| 2364 | // ----------- S t a t e ------------- |
| 2365 | // -- eax : the number of arguments (not including the receiver) |
| 2366 | // -- edx : new.target (only in case of [[Construct]]) |
| 2367 | // -- edi : target (checked to be a JSBoundFunction) |
| 2368 | // -- ecx : the [[BoundArguments]] (implemented as FixedArray) |
| 2369 | // -- ebx : the number of [[BoundArguments]] |
| 2370 | // ----------------------------------- |
| 2371 | |
| 2372 | // Reserve stack space for the [[BoundArguments]]. |
| 2373 | { |
| 2374 | Label done; |
| 2375 | __ lea(ecx, Operand(ebx, times_pointer_size, 0)); |
| 2376 | __ sub(esp, ecx); |
| 2377 | // Check the stack for overflow. We are not trying to catch interruptions |
| 2378 | // (i.e. debug break and preemption) here, so check the "real stack |
| 2379 | // limit". |
| 2380 | __ CompareRoot(esp, ecx, Heap::kRealStackLimitRootIndex); |
| 2381 | __ j(greater, &done, Label::kNear); // Signed comparison. |
| 2382 | // Restore the stack pointer. |
| 2383 | __ lea(esp, Operand(esp, ebx, times_pointer_size, 0)); |
| 2384 | { |
| 2385 | FrameScope scope(masm, StackFrame::MANUAL); |
| 2386 | __ EnterFrame(StackFrame::INTERNAL); |
| 2387 | __ CallRuntime(Runtime::kThrowStackOverflow); |
| 2388 | } |
| 2389 | __ bind(&done); |
| 2390 | } |
| 2391 | |
| 2392 | // Adjust effective number of arguments to include return address. |
| 2393 | __ inc(eax); |
| 2394 | |
| 2395 | // Relocate arguments and return address down the stack. |
| 2396 | { |
| 2397 | Label loop; |
| 2398 | __ Set(ecx, 0); |
| 2399 | __ lea(ebx, Operand(esp, ebx, times_pointer_size, 0)); |
| 2400 | __ bind(&loop); |
| 2401 | __ fld_s(Operand(ebx, ecx, times_pointer_size, 0)); |
| 2402 | __ fstp_s(Operand(esp, ecx, times_pointer_size, 0)); |
| 2403 | __ inc(ecx); |
| 2404 | __ cmp(ecx, eax); |
| 2405 | __ j(less, &loop); |
| 2406 | } |
| 2407 | |
| 2408 | // Copy [[BoundArguments]] to the stack (below the arguments). |
| 2409 | { |
| 2410 | Label loop; |
| 2411 | __ mov(ecx, FieldOperand(edi, JSBoundFunction::kBoundArgumentsOffset)); |
| 2412 | __ mov(ebx, FieldOperand(ecx, FixedArray::kLengthOffset)); |
| 2413 | __ SmiUntag(ebx); |
| 2414 | __ bind(&loop); |
| 2415 | __ dec(ebx); |
| 2416 | __ fld_s( |
| 2417 | FieldOperand(ecx, ebx, times_pointer_size, FixedArray::kHeaderSize)); |
| 2418 | __ fstp_s(Operand(esp, eax, times_pointer_size, 0)); |
| 2419 | __ lea(eax, Operand(eax, 1)); |
| 2420 | __ j(greater, &loop); |
| 2421 | } |
| 2422 | |
| 2423 | // Adjust effective number of arguments (eax contains the number of |
| 2424 | // arguments from the call plus return address plus the number of |
| 2425 | // [[BoundArguments]]), so we need to subtract one for the return address. |
| 2426 | __ dec(eax); |
| 2427 | } |
| 2428 | __ bind(&no_bound_arguments); |
| 2429 | } |
| 2430 | |
| 2431 | } // namespace |
| 2432 | |
| 2433 | |
| 2434 | // static |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2435 | void Builtins::Generate_CallBoundFunctionImpl(MacroAssembler* masm, |
| 2436 | TailCallMode tail_call_mode) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2437 | // ----------- S t a t e ------------- |
| 2438 | // -- eax : the number of arguments (not including the receiver) |
| 2439 | // -- edi : the function to call (checked to be a JSBoundFunction) |
| 2440 | // ----------------------------------- |
| 2441 | __ AssertBoundFunction(edi); |
| 2442 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2443 | if (tail_call_mode == TailCallMode::kAllow) { |
| 2444 | PrepareForTailCall(masm, eax, ebx, ecx, edx); |
| 2445 | } |
| 2446 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2447 | // Patch the receiver to [[BoundThis]]. |
| 2448 | __ mov(ebx, FieldOperand(edi, JSBoundFunction::kBoundThisOffset)); |
| 2449 | __ mov(Operand(esp, eax, times_pointer_size, kPointerSize), ebx); |
| 2450 | |
| 2451 | // Push the [[BoundArguments]] onto the stack. |
| 2452 | Generate_PushBoundArguments(masm); |
| 2453 | |
| 2454 | // Call the [[BoundTargetFunction]] via the Call builtin. |
| 2455 | __ mov(edi, FieldOperand(edi, JSBoundFunction::kBoundTargetFunctionOffset)); |
| 2456 | __ mov(ecx, Operand::StaticVariable(ExternalReference( |
| 2457 | Builtins::kCall_ReceiverIsAny, masm->isolate()))); |
| 2458 | __ lea(ecx, FieldOperand(ecx, Code::kHeaderSize)); |
| 2459 | __ jmp(ecx); |
| 2460 | } |
| 2461 | |
| 2462 | |
| 2463 | // static |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2464 | void Builtins::Generate_Call(MacroAssembler* masm, ConvertReceiverMode mode, |
| 2465 | TailCallMode tail_call_mode) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2466 | // ----------- S t a t e ------------- |
| 2467 | // -- eax : the number of arguments (not including the receiver) |
| 2468 | // -- edi : the target to call (can be any Object). |
| 2469 | // ----------------------------------- |
| 2470 | |
| 2471 | Label non_callable, non_function, non_smi; |
| 2472 | __ JumpIfSmi(edi, &non_callable); |
| 2473 | __ bind(&non_smi); |
| 2474 | __ CmpObjectType(edi, JS_FUNCTION_TYPE, ecx); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2475 | __ j(equal, masm->isolate()->builtins()->CallFunction(mode, tail_call_mode), |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2476 | RelocInfo::CODE_TARGET); |
| 2477 | __ CmpInstanceType(ecx, JS_BOUND_FUNCTION_TYPE); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2478 | __ j(equal, masm->isolate()->builtins()->CallBoundFunction(tail_call_mode), |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2479 | RelocInfo::CODE_TARGET); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2480 | |
| 2481 | // Check if target has a [[Call]] internal method. |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 2482 | __ test_b(FieldOperand(ecx, Map::kBitFieldOffset), |
| 2483 | Immediate(1 << Map::kIsCallable)); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2484 | __ j(zero, &non_callable); |
| 2485 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2486 | __ CmpInstanceType(ecx, JS_PROXY_TYPE); |
| 2487 | __ j(not_equal, &non_function); |
| 2488 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2489 | // 0. Prepare for tail call if necessary. |
| 2490 | if (tail_call_mode == TailCallMode::kAllow) { |
| 2491 | PrepareForTailCall(masm, eax, ebx, ecx, edx); |
| 2492 | } |
| 2493 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2494 | // 1. Runtime fallback for Proxy [[Call]]. |
| 2495 | __ PopReturnAddressTo(ecx); |
| 2496 | __ Push(edi); |
| 2497 | __ PushReturnAddressFrom(ecx); |
| 2498 | // Increase the arguments size to include the pushed function and the |
| 2499 | // existing receiver on the stack. |
| 2500 | __ add(eax, Immediate(2)); |
| 2501 | // Tail-call to the runtime. |
| 2502 | __ JumpToExternalReference( |
| 2503 | ExternalReference(Runtime::kJSProxyCall, masm->isolate())); |
| 2504 | |
| 2505 | // 2. Call to something else, which might have a [[Call]] internal method (if |
| 2506 | // not we raise an exception). |
| 2507 | __ bind(&non_function); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2508 | // Overwrite the original receiver with the (original) target. |
| 2509 | __ mov(Operand(esp, eax, times_pointer_size, kPointerSize), edi); |
| 2510 | // Let the "call_as_function_delegate" take care of the rest. |
| 2511 | __ LoadGlobalFunction(Context::CALL_AS_FUNCTION_DELEGATE_INDEX, edi); |
| 2512 | __ Jump(masm->isolate()->builtins()->CallFunction( |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2513 | ConvertReceiverMode::kNotNullOrUndefined, tail_call_mode), |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2514 | RelocInfo::CODE_TARGET); |
| 2515 | |
| 2516 | // 3. Call to something that is not callable. |
| 2517 | __ bind(&non_callable); |
| 2518 | { |
| 2519 | FrameScope scope(masm, StackFrame::INTERNAL); |
| 2520 | __ Push(edi); |
| 2521 | __ CallRuntime(Runtime::kThrowCalledNonCallable); |
| 2522 | } |
| 2523 | } |
| 2524 | |
| 2525 | |
| 2526 | // static |
| 2527 | void Builtins::Generate_ConstructFunction(MacroAssembler* masm) { |
| 2528 | // ----------- S t a t e ------------- |
| 2529 | // -- eax : the number of arguments (not including the receiver) |
| 2530 | // -- edx : the new target (checked to be a constructor) |
| 2531 | // -- edi : the constructor to call (checked to be a JSFunction) |
| 2532 | // ----------------------------------- |
| 2533 | __ AssertFunction(edi); |
| 2534 | |
| 2535 | // Calling convention for function specific ConstructStubs require |
| 2536 | // ebx to contain either an AllocationSite or undefined. |
| 2537 | __ LoadRoot(ebx, Heap::kUndefinedValueRootIndex); |
| 2538 | |
| 2539 | // Tail call to the function-specific construct stub (still in the caller |
| 2540 | // context at this point). |
| 2541 | __ mov(ecx, FieldOperand(edi, JSFunction::kSharedFunctionInfoOffset)); |
| 2542 | __ mov(ecx, FieldOperand(ecx, SharedFunctionInfo::kConstructStubOffset)); |
| 2543 | __ lea(ecx, FieldOperand(ecx, Code::kHeaderSize)); |
| 2544 | __ jmp(ecx); |
| 2545 | } |
| 2546 | |
| 2547 | |
| 2548 | // static |
| 2549 | void Builtins::Generate_ConstructBoundFunction(MacroAssembler* masm) { |
| 2550 | // ----------- S t a t e ------------- |
| 2551 | // -- eax : the number of arguments (not including the receiver) |
| 2552 | // -- edx : the new target (checked to be a constructor) |
| 2553 | // -- edi : the constructor to call (checked to be a JSBoundFunction) |
| 2554 | // ----------------------------------- |
| 2555 | __ AssertBoundFunction(edi); |
| 2556 | |
| 2557 | // Push the [[BoundArguments]] onto the stack. |
| 2558 | Generate_PushBoundArguments(masm); |
| 2559 | |
| 2560 | // Patch new.target to [[BoundTargetFunction]] if new.target equals target. |
| 2561 | { |
| 2562 | Label done; |
| 2563 | __ cmp(edi, edx); |
| 2564 | __ j(not_equal, &done, Label::kNear); |
| 2565 | __ mov(edx, FieldOperand(edi, JSBoundFunction::kBoundTargetFunctionOffset)); |
| 2566 | __ bind(&done); |
| 2567 | } |
| 2568 | |
| 2569 | // Construct the [[BoundTargetFunction]] via the Construct builtin. |
| 2570 | __ mov(edi, FieldOperand(edi, JSBoundFunction::kBoundTargetFunctionOffset)); |
| 2571 | __ mov(ecx, Operand::StaticVariable( |
| 2572 | ExternalReference(Builtins::kConstruct, masm->isolate()))); |
| 2573 | __ lea(ecx, FieldOperand(ecx, Code::kHeaderSize)); |
| 2574 | __ jmp(ecx); |
| 2575 | } |
| 2576 | |
| 2577 | |
| 2578 | // static |
| 2579 | void Builtins::Generate_ConstructProxy(MacroAssembler* masm) { |
| 2580 | // ----------- S t a t e ------------- |
| 2581 | // -- eax : the number of arguments (not including the receiver) |
| 2582 | // -- edi : the constructor to call (checked to be a JSProxy) |
| 2583 | // -- edx : the new target (either the same as the constructor or |
| 2584 | // the JSFunction on which new was invoked initially) |
| 2585 | // ----------------------------------- |
| 2586 | |
| 2587 | // Call into the Runtime for Proxy [[Construct]]. |
| 2588 | __ PopReturnAddressTo(ecx); |
| 2589 | __ Push(edi); |
| 2590 | __ Push(edx); |
| 2591 | __ PushReturnAddressFrom(ecx); |
| 2592 | // Include the pushed new_target, constructor and the receiver. |
| 2593 | __ add(eax, Immediate(3)); |
| 2594 | // Tail-call to the runtime. |
| 2595 | __ JumpToExternalReference( |
| 2596 | ExternalReference(Runtime::kJSProxyConstruct, masm->isolate())); |
| 2597 | } |
| 2598 | |
| 2599 | |
| 2600 | // static |
| 2601 | void Builtins::Generate_Construct(MacroAssembler* masm) { |
| 2602 | // ----------- S t a t e ------------- |
| 2603 | // -- eax : the number of arguments (not including the receiver) |
| 2604 | // -- edx : the new target (either the same as the constructor or |
| 2605 | // the JSFunction on which new was invoked initially) |
| 2606 | // -- edi : the constructor to call (can be any Object) |
| 2607 | // ----------------------------------- |
| 2608 | |
| 2609 | // Check if target is a Smi. |
| 2610 | Label non_constructor; |
| 2611 | __ JumpIfSmi(edi, &non_constructor, Label::kNear); |
| 2612 | |
| 2613 | // Dispatch based on instance type. |
| 2614 | __ CmpObjectType(edi, JS_FUNCTION_TYPE, ecx); |
| 2615 | __ j(equal, masm->isolate()->builtins()->ConstructFunction(), |
| 2616 | RelocInfo::CODE_TARGET); |
| 2617 | |
| 2618 | // Check if target has a [[Construct]] internal method. |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 2619 | __ test_b(FieldOperand(ecx, Map::kBitFieldOffset), |
| 2620 | Immediate(1 << Map::kIsConstructor)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2621 | __ j(zero, &non_constructor, Label::kNear); |
| 2622 | |
| 2623 | // Only dispatch to bound functions after checking whether they are |
| 2624 | // constructors. |
| 2625 | __ CmpInstanceType(ecx, JS_BOUND_FUNCTION_TYPE); |
| 2626 | __ j(equal, masm->isolate()->builtins()->ConstructBoundFunction(), |
| 2627 | RelocInfo::CODE_TARGET); |
| 2628 | |
| 2629 | // Only dispatch to proxies after checking whether they are constructors. |
| 2630 | __ CmpInstanceType(ecx, JS_PROXY_TYPE); |
| 2631 | __ j(equal, masm->isolate()->builtins()->ConstructProxy(), |
| 2632 | RelocInfo::CODE_TARGET); |
| 2633 | |
| 2634 | // Called Construct on an exotic Object with a [[Construct]] internal method. |
| 2635 | { |
| 2636 | // Overwrite the original receiver with the (original) target. |
| 2637 | __ mov(Operand(esp, eax, times_pointer_size, kPointerSize), edi); |
| 2638 | // Let the "call_as_constructor_delegate" take care of the rest. |
| 2639 | __ LoadGlobalFunction(Context::CALL_AS_CONSTRUCTOR_DELEGATE_INDEX, edi); |
| 2640 | __ Jump(masm->isolate()->builtins()->CallFunction(), |
| 2641 | RelocInfo::CODE_TARGET); |
| 2642 | } |
| 2643 | |
| 2644 | // Called Construct on an Object that doesn't have a [[Construct]] internal |
| 2645 | // method. |
| 2646 | __ bind(&non_constructor); |
| 2647 | __ Jump(masm->isolate()->builtins()->ConstructedNonConstructable(), |
| 2648 | RelocInfo::CODE_TARGET); |
| 2649 | } |
| 2650 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 2651 | // static |
| 2652 | void Builtins::Generate_AllocateInNewSpace(MacroAssembler* masm) { |
| 2653 | // ----------- S t a t e ------------- |
| 2654 | // -- edx : requested object size (untagged) |
| 2655 | // -- esp[0] : return address |
| 2656 | // ----------------------------------- |
| 2657 | __ SmiTag(edx); |
| 2658 | __ PopReturnAddressTo(ecx); |
| 2659 | __ Push(edx); |
| 2660 | __ PushReturnAddressFrom(ecx); |
| 2661 | __ Move(esi, Smi::FromInt(0)); |
| 2662 | __ TailCallRuntime(Runtime::kAllocateInNewSpace); |
| 2663 | } |
| 2664 | |
| 2665 | // static |
| 2666 | void Builtins::Generate_AllocateInOldSpace(MacroAssembler* masm) { |
| 2667 | // ----------- S t a t e ------------- |
| 2668 | // -- edx : requested object size (untagged) |
| 2669 | // -- esp[0] : return address |
| 2670 | // ----------------------------------- |
| 2671 | __ SmiTag(edx); |
| 2672 | __ PopReturnAddressTo(ecx); |
| 2673 | __ Push(edx); |
| 2674 | __ Push(Smi::FromInt(AllocateTargetSpace::encode(OLD_SPACE))); |
| 2675 | __ PushReturnAddressFrom(ecx); |
| 2676 | __ Move(esi, Smi::FromInt(0)); |
| 2677 | __ TailCallRuntime(Runtime::kAllocateInTargetSpace); |
| 2678 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2679 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 2680 | // static |
| 2681 | void Builtins::Generate_StringToNumber(MacroAssembler* masm) { |
| 2682 | // The StringToNumber stub takes one argument in eax. |
| 2683 | __ AssertString(eax); |
| 2684 | |
| 2685 | // Check if string has a cached array index. |
| 2686 | Label runtime; |
| 2687 | __ test(FieldOperand(eax, String::kHashFieldOffset), |
| 2688 | Immediate(String::kContainsCachedArrayIndexMask)); |
| 2689 | __ j(not_zero, &runtime, Label::kNear); |
| 2690 | __ mov(eax, FieldOperand(eax, String::kHashFieldOffset)); |
| 2691 | __ IndexFromHash(eax, eax); |
| 2692 | __ Ret(); |
| 2693 | |
| 2694 | __ bind(&runtime); |
| 2695 | { |
| 2696 | FrameScope frame(masm, StackFrame::INTERNAL); |
| 2697 | // Push argument. |
| 2698 | __ push(eax); |
| 2699 | // We cannot use a tail call here because this builtin can also be called |
| 2700 | // from wasm. |
| 2701 | __ CallRuntime(Runtime::kStringToNumber); |
| 2702 | } |
| 2703 | __ Ret(); |
| 2704 | } |
| 2705 | |
| 2706 | // static |
| 2707 | void Builtins::Generate_ToNumber(MacroAssembler* masm) { |
| 2708 | // The ToNumber stub takes one argument in eax. |
| 2709 | Label not_smi; |
| 2710 | __ JumpIfNotSmi(eax, ¬_smi, Label::kNear); |
| 2711 | __ Ret(); |
| 2712 | __ bind(¬_smi); |
| 2713 | |
| 2714 | Label not_heap_number; |
| 2715 | __ CompareMap(eax, masm->isolate()->factory()->heap_number_map()); |
| 2716 | __ j(not_equal, ¬_heap_number, Label::kNear); |
| 2717 | __ Ret(); |
| 2718 | __ bind(¬_heap_number); |
| 2719 | |
| 2720 | __ Jump(masm->isolate()->builtins()->NonNumberToNumber(), |
| 2721 | RelocInfo::CODE_TARGET); |
| 2722 | } |
| 2723 | |
| 2724 | // static |
| 2725 | void Builtins::Generate_NonNumberToNumber(MacroAssembler* masm) { |
| 2726 | // The NonNumberToNumber stub takes one argument in eax. |
| 2727 | __ AssertNotNumber(eax); |
| 2728 | |
| 2729 | Label not_string; |
| 2730 | __ CmpObjectType(eax, FIRST_NONSTRING_TYPE, edi); |
| 2731 | // eax: object |
| 2732 | // edi: object map |
| 2733 | __ j(above_equal, ¬_string, Label::kNear); |
| 2734 | __ Jump(masm->isolate()->builtins()->StringToNumber(), |
| 2735 | RelocInfo::CODE_TARGET); |
| 2736 | __ bind(¬_string); |
| 2737 | |
| 2738 | Label not_oddball; |
| 2739 | __ CmpInstanceType(edi, ODDBALL_TYPE); |
| 2740 | __ j(not_equal, ¬_oddball, Label::kNear); |
| 2741 | __ mov(eax, FieldOperand(eax, Oddball::kToNumberOffset)); |
| 2742 | __ Ret(); |
| 2743 | __ bind(¬_oddball); |
| 2744 | { |
| 2745 | FrameScope frame(masm, StackFrame::INTERNAL); |
| 2746 | // Push argument. |
| 2747 | __ push(eax); |
| 2748 | // We cannot use a tail call here because this builtin can also be called |
| 2749 | // from wasm. |
| 2750 | __ CallRuntime(Runtime::kToNumber); |
| 2751 | } |
| 2752 | __ Ret(); |
| 2753 | } |
| 2754 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2755 | void Builtins::Generate_ArgumentsAdaptorTrampoline(MacroAssembler* masm) { |
| 2756 | // ----------- S t a t e ------------- |
| 2757 | // -- eax : actual number of arguments |
| 2758 | // -- ebx : expected number of arguments |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2759 | // -- edx : new target (passed through to callee) |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2760 | // -- edi : function (passed through to callee) |
| 2761 | // ----------------------------------- |
| 2762 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2763 | Label invoke, dont_adapt_arguments, stack_overflow; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2764 | __ IncrementCounter(masm->isolate()->counters()->arguments_adaptors(), 1); |
| 2765 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2766 | Label enough, too_few; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2767 | __ cmp(eax, ebx); |
| 2768 | __ j(less, &too_few); |
| 2769 | __ cmp(ebx, SharedFunctionInfo::kDontAdaptArgumentsSentinel); |
| 2770 | __ j(equal, &dont_adapt_arguments); |
| 2771 | |
| 2772 | { // Enough parameters: Actual >= expected. |
| 2773 | __ bind(&enough); |
| 2774 | EnterArgumentsAdaptorFrame(masm); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2775 | ArgumentsAdaptorStackCheck(masm, &stack_overflow); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2776 | |
| 2777 | // Copy receiver and all expected arguments. |
| 2778 | const int offset = StandardFrameConstants::kCallerSPOffset; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2779 | __ lea(edi, Operand(ebp, eax, times_4, offset)); |
| 2780 | __ mov(eax, -1); // account for receiver |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2781 | |
| 2782 | Label copy; |
| 2783 | __ bind(©); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2784 | __ inc(eax); |
| 2785 | __ push(Operand(edi, 0)); |
| 2786 | __ sub(edi, Immediate(kPointerSize)); |
| 2787 | __ cmp(eax, ebx); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2788 | __ j(less, ©); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2789 | // eax now contains the expected number of arguments. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2790 | __ jmp(&invoke); |
| 2791 | } |
| 2792 | |
| 2793 | { // Too few parameters: Actual < expected. |
| 2794 | __ bind(&too_few); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2795 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2796 | EnterArgumentsAdaptorFrame(masm); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2797 | ArgumentsAdaptorStackCheck(masm, &stack_overflow); |
| 2798 | |
| 2799 | // Remember expected arguments in ecx. |
| 2800 | __ mov(ecx, ebx); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2801 | |
| 2802 | // Copy receiver and all actual arguments. |
| 2803 | const int offset = StandardFrameConstants::kCallerSPOffset; |
| 2804 | __ lea(edi, Operand(ebp, eax, times_4, offset)); |
| 2805 | // ebx = expected - actual. |
| 2806 | __ sub(ebx, eax); |
| 2807 | // eax = -actual - 1 |
| 2808 | __ neg(eax); |
| 2809 | __ sub(eax, Immediate(1)); |
| 2810 | |
| 2811 | Label copy; |
| 2812 | __ bind(©); |
| 2813 | __ inc(eax); |
| 2814 | __ push(Operand(edi, 0)); |
| 2815 | __ sub(edi, Immediate(kPointerSize)); |
| 2816 | __ test(eax, eax); |
| 2817 | __ j(not_zero, ©); |
| 2818 | |
| 2819 | // Fill remaining expected arguments with undefined values. |
| 2820 | Label fill; |
| 2821 | __ bind(&fill); |
| 2822 | __ inc(eax); |
| 2823 | __ push(Immediate(masm->isolate()->factory()->undefined_value())); |
| 2824 | __ cmp(eax, ebx); |
| 2825 | __ j(less, &fill); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2826 | |
| 2827 | // Restore expected arguments. |
| 2828 | __ mov(eax, ecx); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2829 | } |
| 2830 | |
| 2831 | // Call the entry point. |
| 2832 | __ bind(&invoke); |
| 2833 | // Restore function pointer. |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 2834 | __ mov(edi, Operand(ebp, ArgumentsAdaptorFrameConstants::kFunctionOffset)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2835 | // eax : expected number of arguments |
| 2836 | // edx : new target (passed through to callee) |
| 2837 | // edi : function (passed through to callee) |
| 2838 | __ mov(ecx, FieldOperand(edi, JSFunction::kCodeEntryOffset)); |
| 2839 | __ call(ecx); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2840 | |
| 2841 | // Store offset of return address for deoptimizer. |
| 2842 | masm->isolate()->heap()->SetArgumentsAdaptorDeoptPCOffset(masm->pc_offset()); |
| 2843 | |
| 2844 | // Leave frame and return. |
| 2845 | LeaveArgumentsAdaptorFrame(masm); |
| 2846 | __ ret(0); |
| 2847 | |
| 2848 | // ------------------------------------------- |
| 2849 | // Dont adapt arguments. |
| 2850 | // ------------------------------------------- |
| 2851 | __ bind(&dont_adapt_arguments); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2852 | __ mov(ecx, FieldOperand(edi, JSFunction::kCodeEntryOffset)); |
| 2853 | __ jmp(ecx); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2854 | |
| 2855 | __ bind(&stack_overflow); |
| 2856 | { |
| 2857 | FrameScope frame(masm, StackFrame::MANUAL); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2858 | __ CallRuntime(Runtime::kThrowStackOverflow); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2859 | __ int3(); |
| 2860 | } |
| 2861 | } |
| 2862 | |
| 2863 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2864 | static void CompatibleReceiverCheck(MacroAssembler* masm, Register receiver, |
| 2865 | Register function_template_info, |
| 2866 | Register scratch0, Register scratch1, |
| 2867 | Label* receiver_check_failed) { |
| 2868 | // If there is no signature, return the holder. |
| 2869 | __ CompareRoot(FieldOperand(function_template_info, |
| 2870 | FunctionTemplateInfo::kSignatureOffset), |
| 2871 | Heap::kUndefinedValueRootIndex); |
| 2872 | Label receiver_check_passed; |
| 2873 | __ j(equal, &receiver_check_passed, Label::kNear); |
| 2874 | |
| 2875 | // Walk the prototype chain. |
| 2876 | __ mov(scratch0, FieldOperand(receiver, HeapObject::kMapOffset)); |
| 2877 | Label prototype_loop_start; |
| 2878 | __ bind(&prototype_loop_start); |
| 2879 | |
| 2880 | // Get the constructor, if any. |
| 2881 | __ GetMapConstructor(scratch0, scratch0, scratch1); |
| 2882 | __ CmpInstanceType(scratch1, JS_FUNCTION_TYPE); |
| 2883 | Label next_prototype; |
| 2884 | __ j(not_equal, &next_prototype, Label::kNear); |
| 2885 | |
| 2886 | // Get the constructor's signature. |
| 2887 | __ mov(scratch0, |
| 2888 | FieldOperand(scratch0, JSFunction::kSharedFunctionInfoOffset)); |
| 2889 | __ mov(scratch0, |
| 2890 | FieldOperand(scratch0, SharedFunctionInfo::kFunctionDataOffset)); |
| 2891 | |
| 2892 | // Loop through the chain of inheriting function templates. |
| 2893 | Label function_template_loop; |
| 2894 | __ bind(&function_template_loop); |
| 2895 | |
| 2896 | // If the signatures match, we have a compatible receiver. |
| 2897 | __ cmp(scratch0, FieldOperand(function_template_info, |
| 2898 | FunctionTemplateInfo::kSignatureOffset)); |
| 2899 | __ j(equal, &receiver_check_passed, Label::kNear); |
| 2900 | |
| 2901 | // If the current type is not a FunctionTemplateInfo, load the next prototype |
| 2902 | // in the chain. |
| 2903 | __ JumpIfSmi(scratch0, &next_prototype, Label::kNear); |
| 2904 | __ CmpObjectType(scratch0, FUNCTION_TEMPLATE_INFO_TYPE, scratch1); |
| 2905 | __ j(not_equal, &next_prototype, Label::kNear); |
| 2906 | |
| 2907 | // Otherwise load the parent function template and iterate. |
| 2908 | __ mov(scratch0, |
| 2909 | FieldOperand(scratch0, FunctionTemplateInfo::kParentTemplateOffset)); |
| 2910 | __ jmp(&function_template_loop, Label::kNear); |
| 2911 | |
| 2912 | // Load the next prototype. |
| 2913 | __ bind(&next_prototype); |
| 2914 | __ mov(receiver, FieldOperand(receiver, HeapObject::kMapOffset)); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2915 | __ test(FieldOperand(receiver, Map::kBitField3Offset), |
| 2916 | Immediate(Map::HasHiddenPrototype::kMask)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2917 | __ j(zero, receiver_check_failed); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2918 | |
| 2919 | __ mov(receiver, FieldOperand(receiver, Map::kPrototypeOffset)); |
| 2920 | __ mov(scratch0, FieldOperand(receiver, HeapObject::kMapOffset)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2921 | // Iterate. |
| 2922 | __ jmp(&prototype_loop_start, Label::kNear); |
| 2923 | |
| 2924 | __ bind(&receiver_check_passed); |
| 2925 | } |
| 2926 | |
| 2927 | |
| 2928 | void Builtins::Generate_HandleFastApiCall(MacroAssembler* masm) { |
| 2929 | // ----------- S t a t e ------------- |
| 2930 | // -- eax : number of arguments (not including the receiver) |
| 2931 | // -- edi : callee |
| 2932 | // -- esi : context |
| 2933 | // -- esp[0] : return address |
| 2934 | // -- esp[4] : last argument |
| 2935 | // -- ... |
| 2936 | // -- esp[eax * 4] : first argument |
| 2937 | // -- esp[(eax + 1) * 4] : receiver |
| 2938 | // ----------------------------------- |
| 2939 | |
| 2940 | // Load the FunctionTemplateInfo. |
| 2941 | __ mov(ebx, FieldOperand(edi, JSFunction::kSharedFunctionInfoOffset)); |
| 2942 | __ mov(ebx, FieldOperand(ebx, SharedFunctionInfo::kFunctionDataOffset)); |
| 2943 | |
| 2944 | // Do the compatible receiver check. |
| 2945 | Label receiver_check_failed; |
| 2946 | __ mov(ecx, Operand(esp, eax, times_pointer_size, kPCOnStackSize)); |
| 2947 | __ Push(eax); |
| 2948 | CompatibleReceiverCheck(masm, ecx, ebx, edx, eax, &receiver_check_failed); |
| 2949 | __ Pop(eax); |
| 2950 | // Get the callback offset from the FunctionTemplateInfo, and jump to the |
| 2951 | // beginning of the code. |
| 2952 | __ mov(edx, FieldOperand(ebx, FunctionTemplateInfo::kCallCodeOffset)); |
| 2953 | __ mov(edx, FieldOperand(edx, CallHandlerInfo::kFastHandlerOffset)); |
| 2954 | __ add(edx, Immediate(Code::kHeaderSize - kHeapObjectTag)); |
| 2955 | __ jmp(edx); |
| 2956 | |
| 2957 | // Compatible receiver check failed: pop return address, arguments and |
| 2958 | // receiver and throw an Illegal Invocation exception. |
| 2959 | __ bind(&receiver_check_failed); |
| 2960 | __ Pop(eax); |
| 2961 | __ PopReturnAddressTo(ebx); |
| 2962 | __ lea(eax, Operand(eax, times_pointer_size, 1 * kPointerSize)); |
| 2963 | __ add(esp, eax); |
| 2964 | __ PushReturnAddressFrom(ebx); |
| 2965 | { |
| 2966 | FrameScope scope(masm, StackFrame::INTERNAL); |
| 2967 | __ TailCallRuntime(Runtime::kThrowIllegalInvocation); |
| 2968 | } |
| 2969 | } |
| 2970 | |
| 2971 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2972 | void Builtins::Generate_OnStackReplacement(MacroAssembler* masm) { |
| 2973 | // Lookup the function in the JavaScript frame. |
| 2974 | __ mov(eax, Operand(ebp, JavaScriptFrameConstants::kFunctionOffset)); |
| 2975 | { |
| 2976 | FrameScope scope(masm, StackFrame::INTERNAL); |
| 2977 | // Pass function as argument. |
| 2978 | __ push(eax); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2979 | __ CallRuntime(Runtime::kCompileForOnStackReplacement); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2980 | } |
| 2981 | |
| 2982 | Label skip; |
| 2983 | // If the code object is null, just return to the unoptimized code. |
| 2984 | __ cmp(eax, Immediate(0)); |
| 2985 | __ j(not_equal, &skip, Label::kNear); |
| 2986 | __ ret(0); |
| 2987 | |
| 2988 | __ bind(&skip); |
| 2989 | |
| 2990 | // Load deoptimization data from the code object. |
| 2991 | __ mov(ebx, Operand(eax, Code::kDeoptimizationDataOffset - kHeapObjectTag)); |
| 2992 | |
| 2993 | // Load the OSR entrypoint offset from the deoptimization data. |
| 2994 | __ mov(ebx, Operand(ebx, FixedArray::OffsetOfElementAt( |
| 2995 | DeoptimizationInputData::kOsrPcOffsetIndex) - kHeapObjectTag)); |
| 2996 | __ SmiUntag(ebx); |
| 2997 | |
| 2998 | // Compute the target address = code_obj + header_size + osr_offset |
| 2999 | __ lea(eax, Operand(eax, ebx, times_1, Code::kHeaderSize - kHeapObjectTag)); |
| 3000 | |
| 3001 | // Overwrite the return address on the stack. |
| 3002 | __ mov(Operand(esp, 0), eax); |
| 3003 | |
| 3004 | // And "return" to the OSR entry point of the function. |
| 3005 | __ ret(0); |
| 3006 | } |
| 3007 | |
| 3008 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3009 | #undef __ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3010 | } // namespace internal |
| 3011 | } // namespace v8 |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3012 | |
| 3013 | #endif // V8_TARGET_ARCH_X87 |