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 | |
| 19 | |
| 20 | void Builtins::Generate_Adaptor(MacroAssembler* masm, |
| 21 | CFunctionId id, |
| 22 | BuiltinExtraArguments extra_args) { |
| 23 | // ----------- S t a t e ------------- |
| 24 | // -- eax : number of arguments excluding receiver |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 25 | // -- edi : target |
| 26 | // -- edx : new.target |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 27 | // -- esp[0] : return address |
| 28 | // -- esp[4] : last argument |
| 29 | // -- ... |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 30 | // -- esp[4 * argc] : first argument |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 31 | // -- esp[4 * (argc +1)] : receiver |
| 32 | // ----------------------------------- |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 33 | __ AssertFunction(edi); |
| 34 | |
| 35 | // Make sure we operate in the context of the called function (for example |
| 36 | // ConstructStubs implemented in C++ will be run in the context of the caller |
| 37 | // instead of the callee, due to the way that [[Construct]] is defined for |
| 38 | // ordinary functions). |
| 39 | __ mov(esi, FieldOperand(edi, JSFunction::kContextOffset)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 40 | |
| 41 | // Insert extra arguments. |
| 42 | int num_extra_args = 0; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 43 | if (extra_args != BuiltinExtraArguments::kNone) { |
| 44 | __ PopReturnAddressTo(ecx); |
| 45 | if (extra_args & BuiltinExtraArguments::kTarget) { |
| 46 | ++num_extra_args; |
| 47 | __ Push(edi); |
| 48 | } |
| 49 | if (extra_args & BuiltinExtraArguments::kNewTarget) { |
| 50 | ++num_extra_args; |
| 51 | __ Push(edx); |
| 52 | } |
| 53 | __ PushReturnAddressFrom(ecx); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 54 | } |
| 55 | |
| 56 | // JumpToExternalReference expects eax to contain the number of arguments |
| 57 | // including the receiver and the extra arguments. |
| 58 | __ add(eax, Immediate(num_extra_args + 1)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 59 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 60 | __ JumpToExternalReference(ExternalReference(id, masm->isolate())); |
| 61 | } |
| 62 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 63 | static void GenerateTailCallToReturnedCode(MacroAssembler* masm, |
| 64 | Runtime::FunctionId function_id) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 65 | // ----------- S t a t e ------------- |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 66 | // -- eax : argument count (preserved for callee) |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 67 | // -- edx : new target (preserved for callee) |
| 68 | // -- edi : target function (preserved for callee) |
| 69 | // ----------------------------------- |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 70 | { |
| 71 | FrameScope scope(masm, StackFrame::INTERNAL); |
| 72 | // Push the number of arguments to the callee. |
| 73 | __ SmiTag(eax); |
| 74 | __ push(eax); |
| 75 | // Push a copy of the target function and the new target. |
| 76 | __ push(edi); |
| 77 | __ push(edx); |
| 78 | // Function is also the parameter to the runtime call. |
| 79 | __ push(edi); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 80 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 81 | __ CallRuntime(function_id, 1); |
| 82 | __ mov(ebx, eax); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 83 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 84 | // Restore target function and new target. |
| 85 | __ pop(edx); |
| 86 | __ pop(edi); |
| 87 | __ pop(eax); |
| 88 | __ SmiUntag(eax); |
| 89 | } |
| 90 | |
| 91 | __ lea(ebx, FieldOperand(ebx, Code::kHeaderSize)); |
| 92 | __ jmp(ebx); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 93 | } |
| 94 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 95 | static void GenerateTailCallToSharedCode(MacroAssembler* masm) { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 96 | __ mov(ebx, FieldOperand(edi, JSFunction::kSharedFunctionInfoOffset)); |
| 97 | __ mov(ebx, FieldOperand(ebx, SharedFunctionInfo::kCodeOffset)); |
| 98 | __ lea(ebx, FieldOperand(ebx, Code::kHeaderSize)); |
| 99 | __ jmp(ebx); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 100 | } |
| 101 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 102 | void Builtins::Generate_InOptimizationQueue(MacroAssembler* masm) { |
| 103 | // Checking whether the queued function is ready for install is optional, |
| 104 | // since we come across interrupts and stack checks elsewhere. However, |
| 105 | // not checking may delay installing ready functions, and always checking |
| 106 | // would be quite expensive. A good compromise is to first check against |
| 107 | // stack limit as a cue for an interrupt signal. |
| 108 | Label ok; |
| 109 | ExternalReference stack_limit = |
| 110 | ExternalReference::address_of_stack_limit(masm->isolate()); |
| 111 | __ cmp(esp, Operand::StaticVariable(stack_limit)); |
| 112 | __ j(above_equal, &ok, Label::kNear); |
| 113 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 114 | GenerateTailCallToReturnedCode(masm, Runtime::kTryInstallOptimizedCode); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 115 | |
| 116 | __ bind(&ok); |
| 117 | GenerateTailCallToSharedCode(masm); |
| 118 | } |
| 119 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 120 | static void Generate_JSConstructStubHelper(MacroAssembler* masm, |
| 121 | bool is_api_function, |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 122 | bool create_implicit_receiver, |
| 123 | bool check_derived_construct) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 124 | // ----------- S t a t e ------------- |
| 125 | // -- eax: number of arguments |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 126 | // -- esi: context |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 127 | // -- edi: constructor function |
| 128 | // -- ebx: allocation site or undefined |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 129 | // -- edx: new target |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 130 | // ----------------------------------- |
| 131 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 132 | // Enter a construct frame. |
| 133 | { |
| 134 | FrameScope scope(masm, StackFrame::CONSTRUCT); |
| 135 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 136 | // Preserve the incoming parameters on the stack. |
| 137 | __ AssertUndefinedOrAllocationSite(ebx); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 138 | __ push(esi); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 139 | __ push(ebx); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 140 | __ SmiTag(eax); |
| 141 | __ push(eax); |
| 142 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 143 | if (create_implicit_receiver) { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 144 | // Allocate the new receiver object. |
| 145 | __ Push(edi); |
| 146 | __ Push(edx); |
| 147 | FastNewObjectStub stub(masm->isolate()); |
| 148 | __ CallStub(&stub); |
| 149 | __ mov(ebx, eax); |
| 150 | __ Pop(edx); |
| 151 | __ Pop(edi); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 152 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 153 | // ----------- S t a t e ------------- |
| 154 | // -- edi: constructor function |
| 155 | // -- ebx: newly allocated object |
| 156 | // -- edx: new target |
| 157 | // ----------------------------------- |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 158 | |
| 159 | // Retrieve smi-tagged arguments count from the stack. |
| 160 | __ mov(eax, Operand(esp, 0)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 161 | } |
| 162 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 163 | __ SmiUntag(eax); |
| 164 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 165 | if (create_implicit_receiver) { |
| 166 | // Push the allocated receiver to the stack. We need two copies |
| 167 | // because we may have to return the original one and the calling |
| 168 | // conventions dictate that the called function pops the receiver. |
| 169 | __ push(ebx); |
| 170 | __ push(ebx); |
| 171 | } else { |
| 172 | __ PushRoot(Heap::kTheHoleValueRootIndex); |
| 173 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 174 | |
| 175 | // Set up pointer to last argument. |
| 176 | __ lea(ebx, Operand(ebp, StandardFrameConstants::kCallerSPOffset)); |
| 177 | |
| 178 | // Copy arguments and receiver to the expression stack. |
| 179 | Label loop, entry; |
| 180 | __ mov(ecx, eax); |
| 181 | __ jmp(&entry); |
| 182 | __ bind(&loop); |
| 183 | __ push(Operand(ebx, ecx, times_4, 0)); |
| 184 | __ bind(&entry); |
| 185 | __ dec(ecx); |
| 186 | __ j(greater_equal, &loop); |
| 187 | |
| 188 | // Call the function. |
| 189 | if (is_api_function) { |
| 190 | __ mov(esi, FieldOperand(edi, JSFunction::kContextOffset)); |
| 191 | Handle<Code> code = |
| 192 | masm->isolate()->builtins()->HandleApiCallConstruct(); |
| 193 | __ call(code, RelocInfo::CODE_TARGET); |
| 194 | } else { |
| 195 | ParameterCount actual(eax); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 196 | __ InvokeFunction(edi, edx, actual, CALL_FUNCTION, |
| 197 | CheckDebugStepCallWrapper()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 198 | } |
| 199 | |
| 200 | // Store offset of return address for deoptimizer. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 201 | if (create_implicit_receiver && !is_api_function) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 202 | masm->isolate()->heap()->SetConstructStubDeoptPCOffset(masm->pc_offset()); |
| 203 | } |
| 204 | |
| 205 | // Restore context from the frame. |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 206 | __ mov(esi, Operand(ebp, ConstructFrameConstants::kContextOffset)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 207 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 208 | if (create_implicit_receiver) { |
| 209 | // If the result is an object (in the ECMA sense), we should get rid |
| 210 | // of the receiver and use the result; see ECMA-262 section 13.2.2-7 |
| 211 | // on page 74. |
| 212 | Label use_receiver, exit; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 213 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 214 | // If the result is a smi, it is *not* an object in the ECMA sense. |
| 215 | __ JumpIfSmi(eax, &use_receiver); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 216 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 217 | // If the type of the result (stored in its map) is less than |
| 218 | // FIRST_JS_RECEIVER_TYPE, it is not an object in the ECMA sense. |
| 219 | __ CmpObjectType(eax, FIRST_JS_RECEIVER_TYPE, ecx); |
| 220 | __ j(above_equal, &exit); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 221 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 222 | // Throw away the result of the constructor invocation and use the |
| 223 | // on-stack receiver as the result. |
| 224 | __ bind(&use_receiver); |
| 225 | __ mov(eax, Operand(esp, 0)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 226 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 227 | // Restore the arguments count and leave the construct frame. The |
| 228 | // arguments count is stored below the receiver. |
| 229 | __ bind(&exit); |
| 230 | __ mov(ebx, Operand(esp, 1 * kPointerSize)); |
| 231 | } else { |
| 232 | __ mov(ebx, Operand(esp, 0)); |
| 233 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 234 | |
| 235 | // Leave construct frame. |
| 236 | } |
| 237 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 238 | // ES6 9.2.2. Step 13+ |
| 239 | // Check that the result is not a Smi, indicating that the constructor result |
| 240 | // from a derived class is neither undefined nor an Object. |
| 241 | if (check_derived_construct) { |
| 242 | Label dont_throw; |
| 243 | __ JumpIfNotSmi(eax, &dont_throw); |
| 244 | { |
| 245 | FrameScope scope(masm, StackFrame::INTERNAL); |
| 246 | __ CallRuntime(Runtime::kThrowDerivedConstructorReturnedNonObject); |
| 247 | } |
| 248 | __ bind(&dont_throw); |
| 249 | } |
| 250 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 251 | // Remove caller arguments from the stack and return. |
| 252 | STATIC_ASSERT(kSmiTagSize == 1 && kSmiTag == 0); |
| 253 | __ pop(ecx); |
| 254 | __ lea(esp, Operand(esp, ebx, times_2, 1 * kPointerSize)); // 1 ~ receiver |
| 255 | __ push(ecx); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 256 | if (create_implicit_receiver) { |
| 257 | __ IncrementCounter(masm->isolate()->counters()->constructed_objects(), 1); |
| 258 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 259 | __ ret(0); |
| 260 | } |
| 261 | |
| 262 | |
| 263 | void Builtins::Generate_JSConstructStubGeneric(MacroAssembler* masm) { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 264 | Generate_JSConstructStubHelper(masm, false, true, false); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 265 | } |
| 266 | |
| 267 | |
| 268 | void Builtins::Generate_JSConstructStubApi(MacroAssembler* masm) { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 269 | Generate_JSConstructStubHelper(masm, true, false, false); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 270 | } |
| 271 | |
| 272 | |
| 273 | void Builtins::Generate_JSBuiltinsConstructStub(MacroAssembler* masm) { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 274 | Generate_JSConstructStubHelper(masm, false, false, false); |
| 275 | } |
| 276 | |
| 277 | |
| 278 | void Builtins::Generate_JSBuiltinsConstructStubForDerived( |
| 279 | MacroAssembler* masm) { |
| 280 | Generate_JSConstructStubHelper(masm, false, false, true); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 281 | } |
| 282 | |
| 283 | |
| 284 | void Builtins::Generate_ConstructedNonConstructable(MacroAssembler* masm) { |
| 285 | FrameScope scope(masm, StackFrame::INTERNAL); |
| 286 | __ push(edi); |
| 287 | __ CallRuntime(Runtime::kThrowConstructedNonConstructable); |
| 288 | } |
| 289 | |
| 290 | |
| 291 | enum IsTagged { kEaxIsSmiTagged, kEaxIsUntaggedInt }; |
| 292 | |
| 293 | |
| 294 | // Clobbers ecx, edx, edi; preserves all other registers. |
| 295 | static void Generate_CheckStackOverflow(MacroAssembler* masm, |
| 296 | IsTagged eax_is_tagged) { |
| 297 | // eax : the number of items to be pushed to the stack |
| 298 | // |
| 299 | // Check the stack for overflow. We are not trying to catch |
| 300 | // interruptions (e.g. debug break and preemption) here, so the "real stack |
| 301 | // limit" is checked. |
| 302 | Label okay; |
| 303 | ExternalReference real_stack_limit = |
| 304 | ExternalReference::address_of_real_stack_limit(masm->isolate()); |
| 305 | __ mov(edi, Operand::StaticVariable(real_stack_limit)); |
| 306 | // Make ecx the space we have left. The stack might already be overflowed |
| 307 | // here which will cause ecx to become negative. |
| 308 | __ mov(ecx, esp); |
| 309 | __ sub(ecx, edi); |
| 310 | // Make edx the space we need for the array when it is unrolled onto the |
| 311 | // stack. |
| 312 | __ mov(edx, eax); |
| 313 | int smi_tag = eax_is_tagged == kEaxIsSmiTagged ? kSmiTagSize : 0; |
| 314 | __ shl(edx, kPointerSizeLog2 - smi_tag); |
| 315 | // Check if the arguments will overflow the stack. |
| 316 | __ cmp(ecx, edx); |
| 317 | __ j(greater, &okay); // Signed comparison. |
| 318 | |
| 319 | // Out of stack space. |
| 320 | __ CallRuntime(Runtime::kThrowStackOverflow); |
| 321 | |
| 322 | __ bind(&okay); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 323 | } |
| 324 | |
| 325 | |
| 326 | static void Generate_JSEntryTrampolineHelper(MacroAssembler* masm, |
| 327 | bool is_construct) { |
| 328 | ProfileEntryHookStub::MaybeCallEntryHook(masm); |
| 329 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 330 | { |
| 331 | FrameScope scope(masm, StackFrame::INTERNAL); |
| 332 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 333 | // Setup the context (we need to use the caller context from the isolate). |
| 334 | ExternalReference context_address(Isolate::kContextAddress, |
| 335 | masm->isolate()); |
| 336 | __ mov(esi, Operand::StaticVariable(context_address)); |
| 337 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 338 | // Load the previous frame pointer (ebx) to access C arguments |
| 339 | __ mov(ebx, Operand(ebp, 0)); |
| 340 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 341 | // Push the function and the receiver onto the stack. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 342 | __ push(Operand(ebx, EntryFrameConstants::kFunctionArgOffset)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 343 | __ push(Operand(ebx, EntryFrameConstants::kReceiverArgOffset)); |
| 344 | |
| 345 | // Load the number of arguments and setup pointer to the arguments. |
| 346 | __ mov(eax, Operand(ebx, EntryFrameConstants::kArgcOffset)); |
| 347 | __ mov(ebx, Operand(ebx, EntryFrameConstants::kArgvOffset)); |
| 348 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 349 | // Check if we have enough stack space to push all arguments. |
| 350 | // Expects argument count in eax. Clobbers ecx, edx, edi. |
| 351 | Generate_CheckStackOverflow(masm, kEaxIsUntaggedInt); |
| 352 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 353 | // Copy arguments to the stack in a loop. |
| 354 | Label loop, entry; |
| 355 | __ Move(ecx, Immediate(0)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 356 | __ jmp(&entry, Label::kNear); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 357 | __ bind(&loop); |
| 358 | __ mov(edx, Operand(ebx, ecx, times_4, 0)); // push parameter from argv |
| 359 | __ push(Operand(edx, 0)); // dereference handle |
| 360 | __ inc(ecx); |
| 361 | __ bind(&entry); |
| 362 | __ cmp(ecx, eax); |
| 363 | __ j(not_equal, &loop); |
| 364 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 365 | // Load the previous frame pointer (ebx) to access C arguments |
| 366 | __ mov(ebx, Operand(ebp, 0)); |
| 367 | |
| 368 | // Get the new.target and function from the frame. |
| 369 | __ mov(edx, Operand(ebx, EntryFrameConstants::kNewTargetArgOffset)); |
| 370 | __ mov(edi, Operand(ebx, EntryFrameConstants::kFunctionArgOffset)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 371 | |
| 372 | // Invoke the code. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 373 | Handle<Code> builtin = is_construct |
| 374 | ? masm->isolate()->builtins()->Construct() |
| 375 | : masm->isolate()->builtins()->Call(); |
| 376 | __ Call(builtin, RelocInfo::CODE_TARGET); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 377 | |
| 378 | // Exit the internal frame. Notice that this also removes the empty. |
| 379 | // context and the function left on the stack by the code |
| 380 | // invocation. |
| 381 | } |
| 382 | __ ret(kPointerSize); // Remove receiver. |
| 383 | } |
| 384 | |
| 385 | |
| 386 | void Builtins::Generate_JSEntryTrampoline(MacroAssembler* masm) { |
| 387 | Generate_JSEntryTrampolineHelper(masm, false); |
| 388 | } |
| 389 | |
| 390 | |
| 391 | void Builtins::Generate_JSConstructEntryTrampoline(MacroAssembler* masm) { |
| 392 | Generate_JSEntryTrampolineHelper(masm, true); |
| 393 | } |
| 394 | |
| 395 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 396 | // Generate code for entering a JS function with the interpreter. |
| 397 | // On entry to the function the receiver and arguments have been pushed on the |
| 398 | // stack left to right. The actual argument count matches the formal parameter |
| 399 | // count expected by the function. |
| 400 | // |
| 401 | // The live registers are: |
| 402 | // o edi: the JS function object being called |
| 403 | // o edx: the new target |
| 404 | // o esi: our context |
| 405 | // o ebp: the caller's frame pointer |
| 406 | // o esp: stack pointer (pointing to return address) |
| 407 | // |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 408 | // The function builds an interpreter frame. See InterpreterFrameConstants in |
| 409 | // frames.h for its layout. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 410 | void Builtins::Generate_InterpreterEntryTrampoline(MacroAssembler* masm) { |
| 411 | // Open a frame scope to indicate that there is a frame on the stack. The |
| 412 | // MANUAL indicates that the scope shouldn't actually generate code to set up |
| 413 | // the frame (that is done below). |
| 414 | FrameScope frame_scope(masm, StackFrame::MANUAL); |
| 415 | __ push(ebp); // Caller's frame pointer. |
| 416 | __ mov(ebp, esp); |
| 417 | __ push(esi); // Callee's context. |
| 418 | __ push(edi); // Callee's JS function. |
| 419 | __ push(edx); // Callee's new target. |
| 420 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 421 | // Get the bytecode array from the function object and load the pointer to the |
| 422 | // first entry into edi (InterpreterBytecodeRegister). |
| 423 | __ mov(eax, FieldOperand(edi, JSFunction::kSharedFunctionInfoOffset)); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 424 | |
| 425 | Label load_debug_bytecode_array, bytecode_array_loaded; |
| 426 | __ cmp(FieldOperand(eax, SharedFunctionInfo::kDebugInfoOffset), |
| 427 | Immediate(DebugInfo::uninitialized())); |
| 428 | __ j(not_equal, &load_debug_bytecode_array); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 429 | __ mov(kInterpreterBytecodeArrayRegister, |
| 430 | FieldOperand(eax, SharedFunctionInfo::kFunctionDataOffset)); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 431 | __ bind(&bytecode_array_loaded); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 432 | |
| 433 | if (FLAG_debug_code) { |
| 434 | // Check function data field is actually a BytecodeArray object. |
| 435 | __ AssertNotSmi(kInterpreterBytecodeArrayRegister); |
| 436 | __ CmpObjectType(kInterpreterBytecodeArrayRegister, BYTECODE_ARRAY_TYPE, |
| 437 | eax); |
| 438 | __ Assert(equal, kFunctionDataShouldBeBytecodeArrayOnInterpreterEntry); |
| 439 | } |
| 440 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 441 | // Push bytecode array. |
| 442 | __ push(kInterpreterBytecodeArrayRegister); |
| 443 | // Push zero for bytecode array offset. |
| 444 | __ push(Immediate(0)); |
| 445 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 446 | // Allocate the local and temporary register file on the stack. |
| 447 | { |
| 448 | // Load frame size from the BytecodeArray object. |
| 449 | __ mov(ebx, FieldOperand(kInterpreterBytecodeArrayRegister, |
| 450 | BytecodeArray::kFrameSizeOffset)); |
| 451 | |
| 452 | // Do a stack check to ensure we don't go over the limit. |
| 453 | Label ok; |
| 454 | __ mov(ecx, esp); |
| 455 | __ sub(ecx, ebx); |
| 456 | ExternalReference stack_limit = |
| 457 | ExternalReference::address_of_real_stack_limit(masm->isolate()); |
| 458 | __ cmp(ecx, Operand::StaticVariable(stack_limit)); |
| 459 | __ j(above_equal, &ok); |
| 460 | __ CallRuntime(Runtime::kThrowStackOverflow); |
| 461 | __ bind(&ok); |
| 462 | |
| 463 | // If ok, push undefined as the initial value for all register file entries. |
| 464 | Label loop_header; |
| 465 | Label loop_check; |
| 466 | __ mov(eax, Immediate(masm->isolate()->factory()->undefined_value())); |
| 467 | __ jmp(&loop_check); |
| 468 | __ bind(&loop_header); |
| 469 | // TODO(rmcilroy): Consider doing more than one push per loop iteration. |
| 470 | __ push(eax); |
| 471 | // Continue loop if not done. |
| 472 | __ bind(&loop_check); |
| 473 | __ sub(ebx, Immediate(kPointerSize)); |
| 474 | __ j(greater_equal, &loop_header); |
| 475 | } |
| 476 | |
| 477 | // TODO(rmcilroy): List of things not currently dealt with here but done in |
| 478 | // fullcodegen's prologue: |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 479 | // - Call ProfileEntryHookStub when isolate has a function_entry_hook. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 480 | // - Code aging of the BytecodeArray object. |
| 481 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 482 | // Load accumulator, register file, bytecode offset, dispatch table into |
| 483 | // registers. |
| 484 | __ LoadRoot(kInterpreterAccumulatorRegister, Heap::kUndefinedValueRootIndex); |
| 485 | __ mov(kInterpreterRegisterFileRegister, ebp); |
| 486 | __ add(kInterpreterRegisterFileRegister, |
| 487 | Immediate(InterpreterFrameConstants::kRegisterFilePointerFromFp)); |
| 488 | __ mov(kInterpreterBytecodeOffsetRegister, |
| 489 | Immediate(BytecodeArray::kHeaderSize - kHeapObjectTag)); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 490 | __ mov(ebx, Immediate(ExternalReference::interpreter_dispatch_table_address( |
| 491 | masm->isolate()))); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 492 | |
| 493 | // Push dispatch table as a stack located parameter to the bytecode handler. |
| 494 | DCHECK_EQ(-1, kInterpreterDispatchTableSpillSlot); |
| 495 | __ push(ebx); |
| 496 | |
| 497 | // Dispatch to the first bytecode handler for the function. |
| 498 | __ movzx_b(eax, Operand(kInterpreterBytecodeArrayRegister, |
| 499 | kInterpreterBytecodeOffsetRegister, times_1, 0)); |
| 500 | __ mov(ebx, Operand(ebx, eax, times_pointer_size, 0)); |
| 501 | // Restore undefined_value in accumulator (eax) |
| 502 | // TODO(rmcilroy): Remove this once we move the dispatch table back into a |
| 503 | // register. |
| 504 | __ mov(eax, Immediate(masm->isolate()->factory()->undefined_value())); |
| 505 | // TODO(rmcilroy): Make dispatch table point to code entrys to avoid untagging |
| 506 | // and header removal. |
| 507 | __ add(ebx, Immediate(Code::kHeaderSize - kHeapObjectTag)); |
| 508 | __ call(ebx); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 509 | |
| 510 | // Even though the first bytecode handler was called, we will never return. |
| 511 | __ Abort(kUnexpectedReturnFromBytecodeHandler); |
| 512 | |
| 513 | // Load debug copy of the bytecode array. |
| 514 | __ bind(&load_debug_bytecode_array); |
| 515 | Register debug_info = kInterpreterBytecodeArrayRegister; |
| 516 | __ mov(debug_info, FieldOperand(eax, SharedFunctionInfo::kDebugInfoOffset)); |
| 517 | __ mov(kInterpreterBytecodeArrayRegister, |
| 518 | FieldOperand(debug_info, DebugInfo::kAbstractCodeIndex)); |
| 519 | __ jmp(&bytecode_array_loaded); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 520 | } |
| 521 | |
| 522 | |
| 523 | void Builtins::Generate_InterpreterExitTrampoline(MacroAssembler* masm) { |
| 524 | // TODO(rmcilroy): List of things not currently dealt with here but done in |
| 525 | // fullcodegen's EmitReturnSequence. |
| 526 | // - Supporting FLAG_trace for Runtime::TraceExit. |
| 527 | // - Support profiler (specifically decrementing profiling_counter |
| 528 | // appropriately and calling out to HandleInterrupts if necessary). |
| 529 | |
| 530 | // The return value is in accumulator, which is already in rax. |
| 531 | |
| 532 | // Leave the frame (also dropping the register file). |
| 533 | __ leave(); |
| 534 | |
| 535 | // Drop receiver + arguments and return. |
| 536 | __ mov(ebx, FieldOperand(kInterpreterBytecodeArrayRegister, |
| 537 | BytecodeArray::kParameterSizeOffset)); |
| 538 | __ pop(ecx); |
| 539 | __ add(esp, ebx); |
| 540 | __ push(ecx); |
| 541 | __ ret(0); |
| 542 | } |
| 543 | |
| 544 | |
| 545 | static void Generate_InterpreterPushArgs(MacroAssembler* masm, |
| 546 | Register array_limit) { |
| 547 | // ----------- S t a t e ------------- |
| 548 | // -- ebx : Pointer to the last argument in the args array. |
| 549 | // -- array_limit : Pointer to one before the first argument in the |
| 550 | // args array. |
| 551 | // ----------------------------------- |
| 552 | Label loop_header, loop_check; |
| 553 | __ jmp(&loop_check); |
| 554 | __ bind(&loop_header); |
| 555 | __ Push(Operand(ebx, 0)); |
| 556 | __ sub(ebx, Immediate(kPointerSize)); |
| 557 | __ bind(&loop_check); |
| 558 | __ cmp(ebx, array_limit); |
| 559 | __ j(greater, &loop_header, Label::kNear); |
| 560 | } |
| 561 | |
| 562 | |
| 563 | // static |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 564 | void Builtins::Generate_InterpreterPushArgsAndCallImpl( |
| 565 | MacroAssembler* masm, TailCallMode tail_call_mode) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 566 | // ----------- S t a t e ------------- |
| 567 | // -- eax : the number of arguments (not including the receiver) |
| 568 | // -- ebx : the address of the first argument to be pushed. Subsequent |
| 569 | // arguments should be consecutive above this, in the same order as |
| 570 | // they are to be pushed onto the stack. |
| 571 | // -- edi : the target to call (can be any Object). |
| 572 | // ----------------------------------- |
| 573 | |
| 574 | // Pop return address to allow tail-call after pushing arguments. |
| 575 | __ Pop(edx); |
| 576 | |
| 577 | // Find the address of the last argument. |
| 578 | __ mov(ecx, eax); |
| 579 | __ add(ecx, Immediate(1)); // Add one for receiver. |
| 580 | __ shl(ecx, kPointerSizeLog2); |
| 581 | __ neg(ecx); |
| 582 | __ add(ecx, ebx); |
| 583 | |
| 584 | Generate_InterpreterPushArgs(masm, ecx); |
| 585 | |
| 586 | // Call the target. |
| 587 | __ Push(edx); // Re-push return address. |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 588 | __ Jump(masm->isolate()->builtins()->Call(ConvertReceiverMode::kAny, |
| 589 | tail_call_mode), |
| 590 | RelocInfo::CODE_TARGET); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 591 | } |
| 592 | |
| 593 | |
| 594 | // static |
| 595 | void Builtins::Generate_InterpreterPushArgsAndConstruct(MacroAssembler* masm) { |
| 596 | // ----------- S t a t e ------------- |
| 597 | // -- eax : the number of arguments (not including the receiver) |
| 598 | // -- edx : the new target |
| 599 | // -- edi : the constructor |
| 600 | // -- ebx : the address of the first argument to be pushed. Subsequent |
| 601 | // arguments should be consecutive above this, in the same order as |
| 602 | // they are to be pushed onto the stack. |
| 603 | // ----------------------------------- |
| 604 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 605 | // Pop return address to allow tail-call after pushing arguments. |
| 606 | __ Pop(ecx); |
| 607 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 608 | // Push edi in the slot meant for receiver. We need an extra register |
| 609 | // so store edi temporarily on stack. |
| 610 | __ Push(edi); |
| 611 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 612 | // Find the address of the last argument. |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 613 | __ mov(edi, eax); |
| 614 | __ neg(edi); |
| 615 | __ shl(edi, kPointerSizeLog2); |
| 616 | __ add(edi, ebx); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 617 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 618 | Generate_InterpreterPushArgs(masm, edi); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 619 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 620 | // Restore the constructor from slot on stack. It was pushed at the slot |
| 621 | // meant for receiver. |
| 622 | __ mov(edi, Operand(esp, eax, times_pointer_size, 0)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 623 | |
| 624 | // Re-push return address. |
| 625 | __ Push(ecx); |
| 626 | |
| 627 | // Call the constructor with unmodified eax, edi, ebi values. |
| 628 | __ Jump(masm->isolate()->builtins()->Construct(), RelocInfo::CODE_TARGET); |
| 629 | } |
| 630 | |
| 631 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 632 | static void Generate_EnterBytecodeDispatch(MacroAssembler* masm) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 633 | // Initialize register file register. |
| 634 | __ mov(kInterpreterRegisterFileRegister, ebp); |
| 635 | __ add(kInterpreterRegisterFileRegister, |
| 636 | Immediate(InterpreterFrameConstants::kRegisterFilePointerFromFp)); |
| 637 | |
| 638 | // Get the bytecode array pointer from the frame. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 639 | __ mov(kInterpreterBytecodeArrayRegister, |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 640 | Operand(kInterpreterRegisterFileRegister, |
| 641 | InterpreterFrameConstants::kBytecodeArrayFromRegisterPointer)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 642 | |
| 643 | if (FLAG_debug_code) { |
| 644 | // Check function data field is actually a BytecodeArray object. |
| 645 | __ AssertNotSmi(kInterpreterBytecodeArrayRegister); |
| 646 | __ CmpObjectType(kInterpreterBytecodeArrayRegister, BYTECODE_ARRAY_TYPE, |
| 647 | ebx); |
| 648 | __ Assert(equal, kFunctionDataShouldBeBytecodeArrayOnInterpreterEntry); |
| 649 | } |
| 650 | |
| 651 | // Get the target bytecode offset from the frame. |
| 652 | __ mov( |
| 653 | kInterpreterBytecodeOffsetRegister, |
| 654 | Operand(kInterpreterRegisterFileRegister, |
| 655 | InterpreterFrameConstants::kBytecodeOffsetFromRegisterPointer)); |
| 656 | __ SmiUntag(kInterpreterBytecodeOffsetRegister); |
| 657 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 658 | // Push dispatch table as a stack located parameter to the bytecode handler. |
| 659 | __ mov(ebx, Immediate(ExternalReference::interpreter_dispatch_table_address( |
| 660 | masm->isolate()))); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 661 | DCHECK_EQ(-1, kInterpreterDispatchTableSpillSlot); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 662 | __ Pop(esi); |
| 663 | __ Push(ebx); |
| 664 | __ Push(esi); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 665 | |
| 666 | // Dispatch to the target bytecode. |
| 667 | __ movzx_b(esi, Operand(kInterpreterBytecodeArrayRegister, |
| 668 | kInterpreterBytecodeOffsetRegister, times_1, 0)); |
| 669 | __ mov(ebx, Operand(ebx, esi, times_pointer_size, 0)); |
| 670 | |
| 671 | // Get the context from the frame. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 672 | __ mov(kContextRegister, |
| 673 | Operand(kInterpreterRegisterFileRegister, |
| 674 | InterpreterFrameConstants::kContextFromRegisterPointer)); |
| 675 | |
| 676 | // TODO(rmcilroy): Make dispatch table point to code entrys to avoid untagging |
| 677 | // and header removal. |
| 678 | __ add(ebx, Immediate(Code::kHeaderSize - kHeapObjectTag)); |
| 679 | __ jmp(ebx); |
| 680 | } |
| 681 | |
| 682 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 683 | static void Generate_InterpreterNotifyDeoptimizedHelper( |
| 684 | MacroAssembler* masm, Deoptimizer::BailoutType type) { |
| 685 | // Enter an internal frame. |
| 686 | { |
| 687 | FrameScope scope(masm, StackFrame::INTERNAL); |
| 688 | |
| 689 | // Pass the deoptimization type to the runtime system. |
| 690 | __ Push(Smi::FromInt(static_cast<int>(type))); |
| 691 | __ CallRuntime(Runtime::kNotifyDeoptimized); |
| 692 | // Tear down internal frame. |
| 693 | } |
| 694 | |
| 695 | // Drop state (we don't use these for interpreter deopts) and and pop the |
| 696 | // accumulator value into the accumulator register and push PC at top |
| 697 | // of stack (to simulate initial call to bytecode handler in interpreter entry |
| 698 | // trampoline). |
| 699 | __ Pop(ebx); |
| 700 | __ Drop(1); |
| 701 | __ Pop(kInterpreterAccumulatorRegister); |
| 702 | __ Push(ebx); |
| 703 | |
| 704 | // Enter the bytecode dispatch. |
| 705 | Generate_EnterBytecodeDispatch(masm); |
| 706 | } |
| 707 | |
| 708 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 709 | void Builtins::Generate_InterpreterNotifyDeoptimized(MacroAssembler* masm) { |
| 710 | Generate_InterpreterNotifyDeoptimizedHelper(masm, Deoptimizer::EAGER); |
| 711 | } |
| 712 | |
| 713 | |
| 714 | void Builtins::Generate_InterpreterNotifySoftDeoptimized(MacroAssembler* masm) { |
| 715 | Generate_InterpreterNotifyDeoptimizedHelper(masm, Deoptimizer::SOFT); |
| 716 | } |
| 717 | |
| 718 | |
| 719 | void Builtins::Generate_InterpreterNotifyLazyDeoptimized(MacroAssembler* masm) { |
| 720 | Generate_InterpreterNotifyDeoptimizedHelper(masm, Deoptimizer::LAZY); |
| 721 | } |
| 722 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 723 | void Builtins::Generate_InterpreterEnterBytecodeDispatch(MacroAssembler* masm) { |
| 724 | // Set the address of the interpreter entry trampoline as a return address. |
| 725 | // This simulates the initial call to bytecode handlers in interpreter entry |
| 726 | // trampoline. The return will never actually be taken, but our stack walker |
| 727 | // uses this address to determine whether a frame is interpreted. |
| 728 | __ Push(masm->isolate()->builtins()->InterpreterEntryTrampoline()); |
| 729 | |
| 730 | Generate_EnterBytecodeDispatch(masm); |
| 731 | } |
| 732 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 733 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 734 | void Builtins::Generate_CompileLazy(MacroAssembler* masm) { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 735 | GenerateTailCallToReturnedCode(masm, Runtime::kCompileLazy); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 736 | } |
| 737 | |
| 738 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 739 | void Builtins::Generate_CompileOptimized(MacroAssembler* masm) { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 740 | GenerateTailCallToReturnedCode(masm, |
| 741 | Runtime::kCompileOptimized_NotConcurrent); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 742 | } |
| 743 | |
| 744 | |
| 745 | void Builtins::Generate_CompileOptimizedConcurrent(MacroAssembler* masm) { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 746 | GenerateTailCallToReturnedCode(masm, Runtime::kCompileOptimized_Concurrent); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 747 | } |
| 748 | |
| 749 | |
| 750 | static void GenerateMakeCodeYoungAgainCommon(MacroAssembler* masm) { |
| 751 | // For now, we are relying on the fact that make_code_young doesn't do any |
| 752 | // garbage collection which allows us to save/restore the registers without |
| 753 | // worrying about which of them contain pointers. We also don't build an |
| 754 | // internal frame to make the code faster, since we shouldn't have to do stack |
| 755 | // crawls in MakeCodeYoung. This seems a bit fragile. |
| 756 | |
| 757 | // Re-execute the code that was patched back to the young age when |
| 758 | // the stub returns. |
| 759 | __ sub(Operand(esp, 0), Immediate(5)); |
| 760 | __ pushad(); |
| 761 | __ mov(eax, Operand(esp, 8 * kPointerSize)); |
| 762 | { |
| 763 | FrameScope scope(masm, StackFrame::MANUAL); |
| 764 | __ PrepareCallCFunction(2, ebx); |
| 765 | __ mov(Operand(esp, 1 * kPointerSize), |
| 766 | Immediate(ExternalReference::isolate_address(masm->isolate()))); |
| 767 | __ mov(Operand(esp, 0), eax); |
| 768 | __ CallCFunction( |
| 769 | ExternalReference::get_make_code_young_function(masm->isolate()), 2); |
| 770 | } |
| 771 | __ popad(); |
| 772 | __ ret(0); |
| 773 | } |
| 774 | |
| 775 | #define DEFINE_CODE_AGE_BUILTIN_GENERATOR(C) \ |
| 776 | void Builtins::Generate_Make##C##CodeYoungAgainEvenMarking( \ |
| 777 | MacroAssembler* masm) { \ |
| 778 | GenerateMakeCodeYoungAgainCommon(masm); \ |
| 779 | } \ |
| 780 | void Builtins::Generate_Make##C##CodeYoungAgainOddMarking( \ |
| 781 | MacroAssembler* masm) { \ |
| 782 | GenerateMakeCodeYoungAgainCommon(masm); \ |
| 783 | } |
| 784 | CODE_AGE_LIST(DEFINE_CODE_AGE_BUILTIN_GENERATOR) |
| 785 | #undef DEFINE_CODE_AGE_BUILTIN_GENERATOR |
| 786 | |
| 787 | |
| 788 | void Builtins::Generate_MarkCodeAsExecutedOnce(MacroAssembler* masm) { |
| 789 | // For now, as in GenerateMakeCodeYoungAgainCommon, we are relying on the fact |
| 790 | // that make_code_young doesn't do any garbage collection which allows us to |
| 791 | // save/restore the registers without worrying about which of them contain |
| 792 | // pointers. |
| 793 | __ pushad(); |
| 794 | __ mov(eax, Operand(esp, 8 * kPointerSize)); |
| 795 | __ sub(eax, Immediate(Assembler::kCallInstructionLength)); |
| 796 | { // NOLINT |
| 797 | FrameScope scope(masm, StackFrame::MANUAL); |
| 798 | __ PrepareCallCFunction(2, ebx); |
| 799 | __ mov(Operand(esp, 1 * kPointerSize), |
| 800 | Immediate(ExternalReference::isolate_address(masm->isolate()))); |
| 801 | __ mov(Operand(esp, 0), eax); |
| 802 | __ CallCFunction( |
| 803 | ExternalReference::get_mark_code_as_executed_function(masm->isolate()), |
| 804 | 2); |
| 805 | } |
| 806 | __ popad(); |
| 807 | |
| 808 | // Perform prologue operations usually performed by the young code stub. |
| 809 | __ pop(eax); // Pop return address into scratch register. |
| 810 | __ push(ebp); // Caller's frame pointer. |
| 811 | __ mov(ebp, esp); |
| 812 | __ push(esi); // Callee's context. |
| 813 | __ push(edi); // Callee's JS Function. |
| 814 | __ push(eax); // Push return address after frame prologue. |
| 815 | |
| 816 | // Jump to point after the code-age stub. |
| 817 | __ ret(0); |
| 818 | } |
| 819 | |
| 820 | |
| 821 | void Builtins::Generate_MarkCodeAsExecutedTwice(MacroAssembler* masm) { |
| 822 | GenerateMakeCodeYoungAgainCommon(masm); |
| 823 | } |
| 824 | |
| 825 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 826 | void Builtins::Generate_MarkCodeAsToBeExecutedOnce(MacroAssembler* masm) { |
| 827 | Generate_MarkCodeAsExecutedOnce(masm); |
| 828 | } |
| 829 | |
| 830 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 831 | static void Generate_NotifyStubFailureHelper(MacroAssembler* masm, |
| 832 | SaveFPRegsMode save_doubles) { |
| 833 | // Enter an internal frame. |
| 834 | { |
| 835 | FrameScope scope(masm, StackFrame::INTERNAL); |
| 836 | |
| 837 | // Preserve registers across notification, this is important for compiled |
| 838 | // stubs that tail call the runtime on deopts passing their parameters in |
| 839 | // registers. |
| 840 | __ pushad(); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 841 | __ CallRuntime(Runtime::kNotifyStubFailure, save_doubles); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 842 | __ popad(); |
| 843 | // Tear down internal frame. |
| 844 | } |
| 845 | |
| 846 | __ pop(MemOperand(esp, 0)); // Ignore state offset |
| 847 | __ ret(0); // Return to IC Miss stub, continuation still on stack. |
| 848 | } |
| 849 | |
| 850 | |
| 851 | void Builtins::Generate_NotifyStubFailure(MacroAssembler* masm) { |
| 852 | Generate_NotifyStubFailureHelper(masm, kDontSaveFPRegs); |
| 853 | } |
| 854 | |
| 855 | |
| 856 | void Builtins::Generate_NotifyStubFailureSaveDoubles(MacroAssembler* masm) { |
| 857 | Generate_NotifyStubFailureHelper(masm, kSaveFPRegs); |
| 858 | } |
| 859 | |
| 860 | |
| 861 | static void Generate_NotifyDeoptimizedHelper(MacroAssembler* masm, |
| 862 | Deoptimizer::BailoutType type) { |
| 863 | { |
| 864 | FrameScope scope(masm, StackFrame::INTERNAL); |
| 865 | |
| 866 | // Pass deoptimization type to the runtime system. |
| 867 | __ push(Immediate(Smi::FromInt(static_cast<int>(type)))); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 868 | __ CallRuntime(Runtime::kNotifyDeoptimized); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 869 | |
| 870 | // Tear down internal frame. |
| 871 | } |
| 872 | |
| 873 | // Get the full codegen state from the stack and untag it. |
| 874 | __ mov(ecx, Operand(esp, 1 * kPointerSize)); |
| 875 | __ SmiUntag(ecx); |
| 876 | |
| 877 | // Switch on the state. |
| 878 | Label not_no_registers, not_tos_eax; |
| 879 | __ cmp(ecx, FullCodeGenerator::NO_REGISTERS); |
| 880 | __ j(not_equal, ¬_no_registers, Label::kNear); |
| 881 | __ ret(1 * kPointerSize); // Remove state. |
| 882 | |
| 883 | __ bind(¬_no_registers); |
| 884 | __ mov(eax, Operand(esp, 2 * kPointerSize)); |
| 885 | __ cmp(ecx, FullCodeGenerator::TOS_REG); |
| 886 | __ j(not_equal, ¬_tos_eax, Label::kNear); |
| 887 | __ ret(2 * kPointerSize); // Remove state, eax. |
| 888 | |
| 889 | __ bind(¬_tos_eax); |
| 890 | __ Abort(kNoCasesLeft); |
| 891 | } |
| 892 | |
| 893 | |
| 894 | void Builtins::Generate_NotifyDeoptimized(MacroAssembler* masm) { |
| 895 | Generate_NotifyDeoptimizedHelper(masm, Deoptimizer::EAGER); |
| 896 | } |
| 897 | |
| 898 | |
| 899 | void Builtins::Generate_NotifySoftDeoptimized(MacroAssembler* masm) { |
| 900 | Generate_NotifyDeoptimizedHelper(masm, Deoptimizer::SOFT); |
| 901 | } |
| 902 | |
| 903 | |
| 904 | void Builtins::Generate_NotifyLazyDeoptimized(MacroAssembler* masm) { |
| 905 | Generate_NotifyDeoptimizedHelper(masm, Deoptimizer::LAZY); |
| 906 | } |
| 907 | |
| 908 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 909 | // static |
| 910 | void Builtins::Generate_DatePrototype_GetField(MacroAssembler* masm, |
| 911 | int field_index) { |
| 912 | // ----------- S t a t e ------------- |
| 913 | // -- esp[0] : return address |
| 914 | // -- esp[4] : receiver |
| 915 | // ----------------------------------- |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 916 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 917 | // 1. Load receiver into eax and check that it's actually a JSDate object. |
| 918 | Label receiver_not_date; |
| 919 | { |
| 920 | __ mov(eax, Operand(esp, kPointerSize)); |
| 921 | __ JumpIfSmi(eax, &receiver_not_date); |
| 922 | __ CmpObjectType(eax, JS_DATE_TYPE, ebx); |
| 923 | __ j(not_equal, &receiver_not_date); |
| 924 | } |
| 925 | |
| 926 | // 2. Load the specified date field, falling back to the runtime as necessary. |
| 927 | if (field_index == JSDate::kDateValue) { |
| 928 | __ mov(eax, FieldOperand(eax, JSDate::kValueOffset)); |
| 929 | } else { |
| 930 | if (field_index < JSDate::kFirstUncachedField) { |
| 931 | Label stamp_mismatch; |
| 932 | __ mov(edx, Operand::StaticVariable( |
| 933 | ExternalReference::date_cache_stamp(masm->isolate()))); |
| 934 | __ cmp(edx, FieldOperand(eax, JSDate::kCacheStampOffset)); |
| 935 | __ j(not_equal, &stamp_mismatch, Label::kNear); |
| 936 | __ mov(eax, FieldOperand( |
| 937 | eax, JSDate::kValueOffset + field_index * kPointerSize)); |
| 938 | __ ret(1 * kPointerSize); |
| 939 | __ bind(&stamp_mismatch); |
| 940 | } |
| 941 | FrameScope scope(masm, StackFrame::INTERNAL); |
| 942 | __ PrepareCallCFunction(2, ebx); |
| 943 | __ mov(Operand(esp, 0), eax); |
| 944 | __ mov(Operand(esp, 1 * kPointerSize), |
| 945 | Immediate(Smi::FromInt(field_index))); |
| 946 | __ CallCFunction( |
| 947 | ExternalReference::get_date_field_function(masm->isolate()), 2); |
| 948 | } |
| 949 | __ ret(1 * kPointerSize); |
| 950 | |
| 951 | // 3. Raise a TypeError if the receiver is not a date. |
| 952 | __ bind(&receiver_not_date); |
| 953 | { |
| 954 | FrameScope scope(masm, StackFrame::MANUAL); |
| 955 | __ EnterFrame(StackFrame::INTERNAL); |
| 956 | __ CallRuntime(Runtime::kThrowNotDateError); |
| 957 | } |
| 958 | } |
| 959 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 960 | // static |
| 961 | void Builtins::Generate_FunctionHasInstance(MacroAssembler* masm) { |
| 962 | // ----------- S t a t e ------------- |
| 963 | // -- eax : argc |
| 964 | // -- esp[0] : return address |
| 965 | // -- esp[4] : first argument (left-hand side) |
| 966 | // -- esp[8] : receiver (right-hand side) |
| 967 | // ----------------------------------- |
| 968 | |
| 969 | { |
| 970 | FrameScope scope(masm, StackFrame::INTERNAL); |
| 971 | __ mov(InstanceOfDescriptor::LeftRegister(), |
| 972 | Operand(ebp, 2 * kPointerSize)); // Load left-hand side. |
| 973 | __ mov(InstanceOfDescriptor::RightRegister(), |
| 974 | Operand(ebp, 3 * kPointerSize)); // Load right-hand side. |
| 975 | InstanceOfStub stub(masm->isolate(), true); |
| 976 | __ CallStub(&stub); |
| 977 | } |
| 978 | |
| 979 | // Pop the argument and the receiver. |
| 980 | __ ret(2 * kPointerSize); |
| 981 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 982 | |
| 983 | // static |
| 984 | void Builtins::Generate_FunctionPrototypeApply(MacroAssembler* masm) { |
| 985 | // ----------- S t a t e ------------- |
| 986 | // -- eax : argc |
| 987 | // -- esp[0] : return address |
| 988 | // -- esp[4] : argArray |
| 989 | // -- esp[8] : thisArg |
| 990 | // -- esp[12] : receiver |
| 991 | // ----------------------------------- |
| 992 | |
| 993 | // 1. Load receiver into edi, argArray into eax (if present), remove all |
| 994 | // arguments from the stack (including the receiver), and push thisArg (if |
| 995 | // present) instead. |
| 996 | { |
| 997 | Label no_arg_array, no_this_arg; |
| 998 | __ LoadRoot(edx, Heap::kUndefinedValueRootIndex); |
| 999 | __ mov(ebx, edx); |
| 1000 | __ mov(edi, Operand(esp, eax, times_pointer_size, kPointerSize)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1001 | __ test(eax, eax); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1002 | __ j(zero, &no_this_arg, Label::kNear); |
| 1003 | { |
| 1004 | __ mov(edx, Operand(esp, eax, times_pointer_size, 0)); |
| 1005 | __ cmp(eax, Immediate(1)); |
| 1006 | __ j(equal, &no_arg_array, Label::kNear); |
| 1007 | __ mov(ebx, Operand(esp, eax, times_pointer_size, -kPointerSize)); |
| 1008 | __ bind(&no_arg_array); |
| 1009 | } |
| 1010 | __ bind(&no_this_arg); |
| 1011 | __ PopReturnAddressTo(ecx); |
| 1012 | __ lea(esp, Operand(esp, eax, times_pointer_size, kPointerSize)); |
| 1013 | __ Push(edx); |
| 1014 | __ PushReturnAddressFrom(ecx); |
| 1015 | __ Move(eax, ebx); |
| 1016 | } |
| 1017 | |
| 1018 | // ----------- S t a t e ------------- |
| 1019 | // -- eax : argArray |
| 1020 | // -- edi : receiver |
| 1021 | // -- esp[0] : return address |
| 1022 | // -- esp[4] : thisArg |
| 1023 | // ----------------------------------- |
| 1024 | |
| 1025 | // 2. Make sure the receiver is actually callable. |
| 1026 | Label receiver_not_callable; |
| 1027 | __ JumpIfSmi(edi, &receiver_not_callable, Label::kNear); |
| 1028 | __ mov(ecx, FieldOperand(edi, HeapObject::kMapOffset)); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1029 | __ test_b(FieldOperand(ecx, Map::kBitFieldOffset), |
| 1030 | Immediate(1 << Map::kIsCallable)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1031 | __ j(zero, &receiver_not_callable, Label::kNear); |
| 1032 | |
| 1033 | // 3. Tail call with no arguments if argArray is null or undefined. |
| 1034 | Label no_arguments; |
| 1035 | __ JumpIfRoot(eax, Heap::kNullValueRootIndex, &no_arguments, Label::kNear); |
| 1036 | __ JumpIfRoot(eax, Heap::kUndefinedValueRootIndex, &no_arguments, |
| 1037 | Label::kNear); |
| 1038 | |
| 1039 | // 4a. Apply the receiver to the given argArray (passing undefined for |
| 1040 | // new.target). |
| 1041 | __ LoadRoot(edx, Heap::kUndefinedValueRootIndex); |
| 1042 | __ Jump(masm->isolate()->builtins()->Apply(), RelocInfo::CODE_TARGET); |
| 1043 | |
| 1044 | // 4b. The argArray is either null or undefined, so we tail call without any |
| 1045 | // arguments to the receiver. |
| 1046 | __ bind(&no_arguments); |
| 1047 | { |
| 1048 | __ Set(eax, 0); |
| 1049 | __ Jump(masm->isolate()->builtins()->Call(), RelocInfo::CODE_TARGET); |
| 1050 | } |
| 1051 | |
| 1052 | // 4c. The receiver is not callable, throw an appropriate TypeError. |
| 1053 | __ bind(&receiver_not_callable); |
| 1054 | { |
| 1055 | __ mov(Operand(esp, kPointerSize), edi); |
| 1056 | __ TailCallRuntime(Runtime::kThrowApplyNonFunction); |
| 1057 | } |
| 1058 | } |
| 1059 | |
| 1060 | |
| 1061 | // static |
| 1062 | void Builtins::Generate_FunctionPrototypeCall(MacroAssembler* masm) { |
| 1063 | // Stack Layout: |
| 1064 | // esp[0] : Return address |
| 1065 | // esp[8] : Argument n |
| 1066 | // esp[16] : Argument n-1 |
| 1067 | // ... |
| 1068 | // esp[8 * n] : Argument 1 |
| 1069 | // esp[8 * (n + 1)] : Receiver (callable to call) |
| 1070 | // |
| 1071 | // eax contains the number of arguments, n, not counting the receiver. |
| 1072 | // |
| 1073 | // 1. Make sure we have at least one argument. |
| 1074 | { |
| 1075 | Label done; |
| 1076 | __ test(eax, eax); |
| 1077 | __ j(not_zero, &done, Label::kNear); |
| 1078 | __ PopReturnAddressTo(ebx); |
| 1079 | __ PushRoot(Heap::kUndefinedValueRootIndex); |
| 1080 | __ PushReturnAddressFrom(ebx); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1081 | __ inc(eax); |
| 1082 | __ bind(&done); |
| 1083 | } |
| 1084 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1085 | // 2. Get the callable to call (passed as receiver) from the stack. |
| 1086 | __ mov(edi, Operand(esp, eax, times_pointer_size, kPointerSize)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1087 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1088 | // 3. Shift arguments and return address one slot down on the stack |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1089 | // (overwriting the original receiver). Adjust argument count to make |
| 1090 | // the original first argument the new receiver. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1091 | { |
| 1092 | Label loop; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1093 | __ mov(ecx, eax); |
| 1094 | __ bind(&loop); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1095 | __ mov(ebx, Operand(esp, ecx, times_pointer_size, 0)); |
| 1096 | __ mov(Operand(esp, ecx, times_pointer_size, kPointerSize), ebx); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1097 | __ dec(ecx); |
| 1098 | __ j(not_sign, &loop); // While non-negative (to copy return address). |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1099 | __ pop(ebx); // Discard copy of return address. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1100 | __ dec(eax); // One fewer argument (first argument is new receiver). |
| 1101 | } |
| 1102 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1103 | // 4. Call the callable. |
| 1104 | __ Jump(masm->isolate()->builtins()->Call(), RelocInfo::CODE_TARGET); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1105 | } |
| 1106 | |
| 1107 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1108 | void Builtins::Generate_ReflectApply(MacroAssembler* masm) { |
| 1109 | // ----------- S t a t e ------------- |
| 1110 | // -- eax : argc |
| 1111 | // -- esp[0] : return address |
| 1112 | // -- esp[4] : argumentsList |
| 1113 | // -- esp[8] : thisArgument |
| 1114 | // -- esp[12] : target |
| 1115 | // -- esp[16] : receiver |
| 1116 | // ----------------------------------- |
| 1117 | |
| 1118 | // 1. Load target into edi (if present), argumentsList into eax (if present), |
| 1119 | // remove all arguments from the stack (including the receiver), and push |
| 1120 | // thisArgument (if present) instead. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1121 | { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1122 | Label done; |
| 1123 | __ LoadRoot(edi, Heap::kUndefinedValueRootIndex); |
| 1124 | __ mov(edx, edi); |
| 1125 | __ mov(ebx, edi); |
| 1126 | __ cmp(eax, Immediate(1)); |
| 1127 | __ j(below, &done, Label::kNear); |
| 1128 | __ mov(edi, Operand(esp, eax, times_pointer_size, -0 * kPointerSize)); |
| 1129 | __ j(equal, &done, Label::kNear); |
| 1130 | __ mov(edx, Operand(esp, eax, times_pointer_size, -1 * kPointerSize)); |
| 1131 | __ cmp(eax, Immediate(3)); |
| 1132 | __ j(below, &done, Label::kNear); |
| 1133 | __ mov(ebx, Operand(esp, eax, times_pointer_size, -2 * kPointerSize)); |
| 1134 | __ bind(&done); |
| 1135 | __ PopReturnAddressTo(ecx); |
| 1136 | __ lea(esp, Operand(esp, eax, times_pointer_size, kPointerSize)); |
| 1137 | __ Push(edx); |
| 1138 | __ PushReturnAddressFrom(ecx); |
| 1139 | __ Move(eax, ebx); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1140 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1141 | |
| 1142 | // ----------- S t a t e ------------- |
| 1143 | // -- eax : argumentsList |
| 1144 | // -- edi : target |
| 1145 | // -- esp[0] : return address |
| 1146 | // -- esp[4] : thisArgument |
| 1147 | // ----------------------------------- |
| 1148 | |
| 1149 | // 2. Make sure the target is actually callable. |
| 1150 | Label target_not_callable; |
| 1151 | __ JumpIfSmi(edi, &target_not_callable, Label::kNear); |
| 1152 | __ mov(ecx, FieldOperand(edi, HeapObject::kMapOffset)); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1153 | __ test_b(FieldOperand(ecx, Map::kBitFieldOffset), |
| 1154 | Immediate(1 << Map::kIsCallable)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1155 | __ j(zero, &target_not_callable, Label::kNear); |
| 1156 | |
| 1157 | // 3a. Apply the target to the given argumentsList (passing undefined for |
| 1158 | // new.target). |
| 1159 | __ LoadRoot(edx, Heap::kUndefinedValueRootIndex); |
| 1160 | __ Jump(masm->isolate()->builtins()->Apply(), RelocInfo::CODE_TARGET); |
| 1161 | |
| 1162 | // 3b. The target is not callable, throw an appropriate TypeError. |
| 1163 | __ bind(&target_not_callable); |
| 1164 | { |
| 1165 | __ mov(Operand(esp, kPointerSize), edi); |
| 1166 | __ TailCallRuntime(Runtime::kThrowApplyNonFunction); |
| 1167 | } |
| 1168 | } |
| 1169 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1170 | void Builtins::Generate_ReflectConstruct(MacroAssembler* masm) { |
| 1171 | // ----------- S t a t e ------------- |
| 1172 | // -- eax : argc |
| 1173 | // -- esp[0] : return address |
| 1174 | // -- esp[4] : new.target (optional) |
| 1175 | // -- esp[8] : argumentsList |
| 1176 | // -- esp[12] : target |
| 1177 | // -- esp[16] : receiver |
| 1178 | // ----------------------------------- |
| 1179 | |
| 1180 | // 1. Load target into edi (if present), argumentsList into eax (if present), |
| 1181 | // new.target into edx (if present, otherwise use target), remove all |
| 1182 | // arguments from the stack (including the receiver), and push thisArgument |
| 1183 | // (if present) instead. |
| 1184 | { |
| 1185 | Label done; |
| 1186 | __ LoadRoot(edi, Heap::kUndefinedValueRootIndex); |
| 1187 | __ mov(edx, edi); |
| 1188 | __ mov(ebx, edi); |
| 1189 | __ cmp(eax, Immediate(1)); |
| 1190 | __ j(below, &done, Label::kNear); |
| 1191 | __ mov(edi, Operand(esp, eax, times_pointer_size, -0 * kPointerSize)); |
| 1192 | __ mov(edx, edi); |
| 1193 | __ j(equal, &done, Label::kNear); |
| 1194 | __ mov(ebx, Operand(esp, eax, times_pointer_size, -1 * kPointerSize)); |
| 1195 | __ cmp(eax, Immediate(3)); |
| 1196 | __ j(below, &done, Label::kNear); |
| 1197 | __ mov(edx, Operand(esp, eax, times_pointer_size, -2 * kPointerSize)); |
| 1198 | __ bind(&done); |
| 1199 | __ PopReturnAddressTo(ecx); |
| 1200 | __ lea(esp, Operand(esp, eax, times_pointer_size, kPointerSize)); |
| 1201 | __ PushRoot(Heap::kUndefinedValueRootIndex); |
| 1202 | __ PushReturnAddressFrom(ecx); |
| 1203 | __ Move(eax, ebx); |
| 1204 | } |
| 1205 | |
| 1206 | // ----------- S t a t e ------------- |
| 1207 | // -- eax : argumentsList |
| 1208 | // -- edx : new.target |
| 1209 | // -- edi : target |
| 1210 | // -- esp[0] : return address |
| 1211 | // -- esp[4] : receiver (undefined) |
| 1212 | // ----------------------------------- |
| 1213 | |
| 1214 | // 2. Make sure the target is actually a constructor. |
| 1215 | Label target_not_constructor; |
| 1216 | __ JumpIfSmi(edi, &target_not_constructor, Label::kNear); |
| 1217 | __ mov(ecx, FieldOperand(edi, HeapObject::kMapOffset)); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1218 | __ test_b(FieldOperand(ecx, Map::kBitFieldOffset), |
| 1219 | Immediate(1 << Map::kIsConstructor)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1220 | __ j(zero, &target_not_constructor, Label::kNear); |
| 1221 | |
| 1222 | // 3. Make sure the target is actually a constructor. |
| 1223 | Label new_target_not_constructor; |
| 1224 | __ JumpIfSmi(edx, &new_target_not_constructor, Label::kNear); |
| 1225 | __ mov(ecx, FieldOperand(edx, HeapObject::kMapOffset)); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1226 | __ test_b(FieldOperand(ecx, Map::kBitFieldOffset), |
| 1227 | Immediate(1 << Map::kIsConstructor)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1228 | __ j(zero, &new_target_not_constructor, Label::kNear); |
| 1229 | |
| 1230 | // 4a. Construct the target with the given new.target and argumentsList. |
| 1231 | __ Jump(masm->isolate()->builtins()->Apply(), RelocInfo::CODE_TARGET); |
| 1232 | |
| 1233 | // 4b. The target is not a constructor, throw an appropriate TypeError. |
| 1234 | __ bind(&target_not_constructor); |
| 1235 | { |
| 1236 | __ mov(Operand(esp, kPointerSize), edi); |
| 1237 | __ TailCallRuntime(Runtime::kThrowCalledNonCallable); |
| 1238 | } |
| 1239 | |
| 1240 | // 4c. The new.target is not a constructor, throw an appropriate TypeError. |
| 1241 | __ bind(&new_target_not_constructor); |
| 1242 | { |
| 1243 | __ mov(Operand(esp, kPointerSize), edx); |
| 1244 | __ TailCallRuntime(Runtime::kThrowCalledNonCallable); |
| 1245 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1246 | } |
| 1247 | |
| 1248 | |
| 1249 | void Builtins::Generate_InternalArrayCode(MacroAssembler* masm) { |
| 1250 | // ----------- S t a t e ------------- |
| 1251 | // -- eax : argc |
| 1252 | // -- esp[0] : return address |
| 1253 | // -- esp[4] : last argument |
| 1254 | // ----------------------------------- |
| 1255 | Label generic_array_code; |
| 1256 | |
| 1257 | // Get the InternalArray function. |
| 1258 | __ LoadGlobalFunction(Context::INTERNAL_ARRAY_FUNCTION_INDEX, edi); |
| 1259 | |
| 1260 | if (FLAG_debug_code) { |
| 1261 | // Initial map for the builtin InternalArray function should be a map. |
| 1262 | __ mov(ebx, FieldOperand(edi, JSFunction::kPrototypeOrInitialMapOffset)); |
| 1263 | // Will both indicate a NULL and a Smi. |
| 1264 | __ test(ebx, Immediate(kSmiTagMask)); |
| 1265 | __ Assert(not_zero, kUnexpectedInitialMapForInternalArrayFunction); |
| 1266 | __ CmpObjectType(ebx, MAP_TYPE, ecx); |
| 1267 | __ Assert(equal, kUnexpectedInitialMapForInternalArrayFunction); |
| 1268 | } |
| 1269 | |
| 1270 | // Run the native code for the InternalArray function called as a normal |
| 1271 | // function. |
| 1272 | // tail call a stub |
| 1273 | InternalArrayConstructorStub stub(masm->isolate()); |
| 1274 | __ TailCallStub(&stub); |
| 1275 | } |
| 1276 | |
| 1277 | |
| 1278 | void Builtins::Generate_ArrayCode(MacroAssembler* masm) { |
| 1279 | // ----------- S t a t e ------------- |
| 1280 | // -- eax : argc |
| 1281 | // -- esp[0] : return address |
| 1282 | // -- esp[4] : last argument |
| 1283 | // ----------------------------------- |
| 1284 | Label generic_array_code; |
| 1285 | |
| 1286 | // Get the Array function. |
| 1287 | __ LoadGlobalFunction(Context::ARRAY_FUNCTION_INDEX, edi); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1288 | __ mov(edx, edi); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1289 | |
| 1290 | if (FLAG_debug_code) { |
| 1291 | // Initial map for the builtin Array function should be a map. |
| 1292 | __ mov(ebx, FieldOperand(edi, JSFunction::kPrototypeOrInitialMapOffset)); |
| 1293 | // Will both indicate a NULL and a Smi. |
| 1294 | __ test(ebx, Immediate(kSmiTagMask)); |
| 1295 | __ Assert(not_zero, kUnexpectedInitialMapForArrayFunction); |
| 1296 | __ CmpObjectType(ebx, MAP_TYPE, ecx); |
| 1297 | __ Assert(equal, kUnexpectedInitialMapForArrayFunction); |
| 1298 | } |
| 1299 | |
| 1300 | // Run the native code for the Array function called as a normal function. |
| 1301 | // tail call a stub |
| 1302 | __ mov(ebx, masm->isolate()->factory()->undefined_value()); |
| 1303 | ArrayConstructorStub stub(masm->isolate()); |
| 1304 | __ TailCallStub(&stub); |
| 1305 | } |
| 1306 | |
| 1307 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1308 | // static |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1309 | void Builtins::Generate_MathMaxMin(MacroAssembler* masm, MathMaxMinKind kind) { |
| 1310 | // ----------- S t a t e ------------- |
| 1311 | // -- eax : number of arguments |
| 1312 | // -- esp[0] : return address |
| 1313 | // -- esp[(argc - n) * 8] : arg[n] (zero-based) |
| 1314 | // -- esp[(argc + 1) * 8] : receiver |
| 1315 | // ----------------------------------- |
| 1316 | Condition const cc = (kind == MathMaxMinKind::kMin) ? below : above; |
| 1317 | Heap::RootListIndex const root_index = |
| 1318 | (kind == MathMaxMinKind::kMin) ? Heap::kInfinityValueRootIndex |
| 1319 | : Heap::kMinusInfinityValueRootIndex; |
| 1320 | const int reg_sel = (kind == MathMaxMinKind::kMin) ? 1 : 0; |
| 1321 | |
| 1322 | // Load the accumulator with the default return value (either -Infinity or |
| 1323 | // +Infinity), with the tagged value in edx and the double value in stx_0. |
| 1324 | __ LoadRoot(edx, root_index); |
| 1325 | __ fld_d(FieldOperand(edx, HeapNumber::kValueOffset)); |
| 1326 | __ Move(ecx, eax); |
| 1327 | |
| 1328 | Label done_loop, loop; |
| 1329 | __ bind(&loop); |
| 1330 | { |
| 1331 | // Check if all parameters done. |
| 1332 | __ test(ecx, ecx); |
| 1333 | __ j(zero, &done_loop); |
| 1334 | |
| 1335 | // Load the next parameter tagged value into ebx. |
| 1336 | __ mov(ebx, Operand(esp, ecx, times_pointer_size, 0)); |
| 1337 | |
| 1338 | // Load the double value of the parameter into stx_1, maybe converting the |
| 1339 | // parameter to a number first using the ToNumberStub if necessary. |
| 1340 | Label convert, convert_smi, convert_number, done_convert; |
| 1341 | __ bind(&convert); |
| 1342 | __ JumpIfSmi(ebx, &convert_smi); |
| 1343 | __ JumpIfRoot(FieldOperand(ebx, HeapObject::kMapOffset), |
| 1344 | Heap::kHeapNumberMapRootIndex, &convert_number); |
| 1345 | { |
| 1346 | // Parameter is not a Number, use the ToNumberStub to convert it. |
| 1347 | FrameScope scope(masm, StackFrame::INTERNAL); |
| 1348 | __ SmiTag(eax); |
| 1349 | __ SmiTag(ecx); |
| 1350 | __ Push(eax); |
| 1351 | __ Push(ecx); |
| 1352 | __ Push(edx); |
| 1353 | __ mov(eax, ebx); |
| 1354 | ToNumberStub stub(masm->isolate()); |
| 1355 | __ CallStub(&stub); |
| 1356 | __ mov(ebx, eax); |
| 1357 | __ Pop(edx); |
| 1358 | __ Pop(ecx); |
| 1359 | __ Pop(eax); |
| 1360 | { |
| 1361 | // Restore the double accumulator value (stX_0). |
| 1362 | Label restore_smi, done_restore; |
| 1363 | __ JumpIfSmi(edx, &restore_smi, Label::kNear); |
| 1364 | __ fld_d(FieldOperand(edx, HeapNumber::kValueOffset)); |
| 1365 | __ jmp(&done_restore, Label::kNear); |
| 1366 | __ bind(&restore_smi); |
| 1367 | __ SmiUntag(edx); |
| 1368 | __ push(edx); |
| 1369 | __ fild_s(Operand(esp, 0)); |
| 1370 | __ pop(edx); |
| 1371 | __ SmiTag(edx); |
| 1372 | __ bind(&done_restore); |
| 1373 | } |
| 1374 | __ SmiUntag(ecx); |
| 1375 | __ SmiUntag(eax); |
| 1376 | } |
| 1377 | __ jmp(&convert); |
| 1378 | __ bind(&convert_number); |
| 1379 | // Load another value into stx_1 |
| 1380 | __ fld_d(FieldOperand(ebx, HeapNumber::kValueOffset)); |
| 1381 | __ fxch(); |
| 1382 | __ jmp(&done_convert, Label::kNear); |
| 1383 | __ bind(&convert_smi); |
| 1384 | __ SmiUntag(ebx); |
| 1385 | __ push(ebx); |
| 1386 | __ fild_s(Operand(esp, 0)); |
| 1387 | __ pop(ebx); |
| 1388 | __ fxch(); |
| 1389 | __ SmiTag(ebx); |
| 1390 | __ bind(&done_convert); |
| 1391 | |
| 1392 | // Perform the actual comparison with the accumulator value on the left hand |
| 1393 | // side (stx_0) and the next parameter value on the right hand side (stx_1). |
| 1394 | Label compare_equal, compare_nan, compare_swap, done_compare; |
| 1395 | |
| 1396 | // Duplicates the 2 float data for FCmp |
| 1397 | __ fld(1); |
| 1398 | __ fld(1); |
| 1399 | __ FCmp(); |
| 1400 | __ j(parity_even, &compare_nan, Label::kNear); |
| 1401 | __ j(cc, &done_compare, Label::kNear); |
| 1402 | __ j(equal, &compare_equal, Label::kNear); |
| 1403 | |
| 1404 | // Result is on the right hand side(stx_0). |
| 1405 | __ bind(&compare_swap); |
| 1406 | __ fxch(); |
| 1407 | __ mov(edx, ebx); |
| 1408 | __ jmp(&done_compare, Label::kNear); |
| 1409 | |
| 1410 | // At least one side is NaN, which means that the result will be NaN too. |
| 1411 | __ bind(&compare_nan); |
| 1412 | // Set the result on the right hand side (stx_0) to nan |
| 1413 | __ fstp(0); |
| 1414 | __ LoadRoot(edx, Heap::kNanValueRootIndex); |
| 1415 | __ fld_d(FieldOperand(edx, HeapNumber::kValueOffset)); |
| 1416 | __ jmp(&done_compare, Label::kNear); |
| 1417 | |
| 1418 | // Left and right hand side are equal, check for -0 vs. +0. |
| 1419 | __ bind(&compare_equal); |
| 1420 | // Check the sign of the value in reg_sel |
| 1421 | __ fld(reg_sel); |
| 1422 | __ FXamSign(); |
| 1423 | __ j(not_zero, &compare_swap); |
| 1424 | |
| 1425 | __ bind(&done_compare); |
| 1426 | // The right result is on the right hand side(stx_0) |
| 1427 | // and can remove the useless stx_1 now. |
| 1428 | __ fxch(); |
| 1429 | __ fstp(0); |
| 1430 | __ dec(ecx); |
| 1431 | __ jmp(&loop); |
| 1432 | } |
| 1433 | |
| 1434 | __ bind(&done_loop); |
| 1435 | __ PopReturnAddressTo(ecx); |
| 1436 | __ lea(esp, Operand(esp, eax, times_pointer_size, kPointerSize)); |
| 1437 | __ PushReturnAddressFrom(ecx); |
| 1438 | __ mov(eax, edx); |
| 1439 | __ Ret(); |
| 1440 | } |
| 1441 | |
| 1442 | // static |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1443 | void Builtins::Generate_NumberConstructor(MacroAssembler* masm) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1444 | // ----------- S t a t e ------------- |
| 1445 | // -- eax : number of arguments |
| 1446 | // -- edi : constructor function |
| 1447 | // -- esp[0] : return address |
| 1448 | // -- esp[(argc - n) * 4] : arg[n] (zero-based) |
| 1449 | // -- esp[(argc + 1) * 4] : receiver |
| 1450 | // ----------------------------------- |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1451 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1452 | // 1. Load the first argument into eax and get rid of the rest (including the |
| 1453 | // receiver). |
| 1454 | Label no_arguments; |
| 1455 | { |
| 1456 | __ test(eax, eax); |
| 1457 | __ j(zero, &no_arguments, Label::kNear); |
| 1458 | __ mov(ebx, Operand(esp, eax, times_pointer_size, 0)); |
| 1459 | __ PopReturnAddressTo(ecx); |
| 1460 | __ lea(esp, Operand(esp, eax, times_pointer_size, kPointerSize)); |
| 1461 | __ PushReturnAddressFrom(ecx); |
| 1462 | __ mov(eax, ebx); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1463 | } |
| 1464 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1465 | // 2a. Convert the first argument to a number. |
| 1466 | ToNumberStub stub(masm->isolate()); |
| 1467 | __ TailCallStub(&stub); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1468 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1469 | // 2b. No arguments, return +0 (already in eax). |
| 1470 | __ bind(&no_arguments); |
| 1471 | __ ret(1 * kPointerSize); |
| 1472 | } |
| 1473 | |
| 1474 | |
| 1475 | // static |
| 1476 | void Builtins::Generate_NumberConstructor_ConstructStub(MacroAssembler* masm) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1477 | // ----------- S t a t e ------------- |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1478 | // -- eax : number of arguments |
| 1479 | // -- edi : constructor function |
| 1480 | // -- edx : new target |
| 1481 | // -- esp[0] : return address |
| 1482 | // -- esp[(argc - n) * 4] : arg[n] (zero-based) |
| 1483 | // -- esp[(argc + 1) * 4] : receiver |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1484 | // ----------------------------------- |
| 1485 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1486 | // 1. Make sure we operate in the context of the called function. |
| 1487 | __ mov(esi, FieldOperand(edi, JSFunction::kContextOffset)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1488 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1489 | // 2. Load the first argument into ebx and get rid of the rest (including the |
| 1490 | // receiver). |
| 1491 | { |
| 1492 | Label no_arguments, done; |
| 1493 | __ test(eax, eax); |
| 1494 | __ j(zero, &no_arguments, Label::kNear); |
| 1495 | __ mov(ebx, Operand(esp, eax, times_pointer_size, 0)); |
| 1496 | __ jmp(&done, Label::kNear); |
| 1497 | __ bind(&no_arguments); |
| 1498 | __ Move(ebx, Smi::FromInt(0)); |
| 1499 | __ bind(&done); |
| 1500 | __ PopReturnAddressTo(ecx); |
| 1501 | __ lea(esp, Operand(esp, eax, times_pointer_size, kPointerSize)); |
| 1502 | __ PushReturnAddressFrom(ecx); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1503 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1504 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1505 | // 3. Make sure ebx is a number. |
| 1506 | { |
| 1507 | Label done_convert; |
| 1508 | __ JumpIfSmi(ebx, &done_convert); |
| 1509 | __ CompareRoot(FieldOperand(ebx, HeapObject::kMapOffset), |
| 1510 | Heap::kHeapNumberMapRootIndex); |
| 1511 | __ j(equal, &done_convert); |
| 1512 | { |
| 1513 | FrameScope scope(masm, StackFrame::INTERNAL); |
| 1514 | __ Push(edi); |
| 1515 | __ Push(edx); |
| 1516 | __ Move(eax, ebx); |
| 1517 | ToNumberStub stub(masm->isolate()); |
| 1518 | __ CallStub(&stub); |
| 1519 | __ Move(ebx, eax); |
| 1520 | __ Pop(edx); |
| 1521 | __ Pop(edi); |
| 1522 | } |
| 1523 | __ bind(&done_convert); |
| 1524 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1525 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1526 | // 4. Check if new target and constructor differ. |
| 1527 | Label new_object; |
| 1528 | __ cmp(edx, edi); |
| 1529 | __ j(not_equal, &new_object); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1530 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1531 | // 5. Allocate a JSValue wrapper for the number. |
| 1532 | __ AllocateJSValue(eax, edi, ebx, ecx, &new_object); |
| 1533 | __ Ret(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1534 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1535 | // 6. Fallback to the runtime to create new object. |
| 1536 | __ bind(&new_object); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1537 | { |
| 1538 | FrameScope scope(masm, StackFrame::INTERNAL); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1539 | __ Push(ebx); // the first argument |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1540 | FastNewObjectStub stub(masm->isolate()); |
| 1541 | __ CallStub(&stub); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1542 | __ Pop(FieldOperand(eax, JSValue::kValueOffset)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1543 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1544 | __ Ret(); |
| 1545 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1546 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1547 | |
| 1548 | // static |
| 1549 | void Builtins::Generate_StringConstructor(MacroAssembler* masm) { |
| 1550 | // ----------- S t a t e ------------- |
| 1551 | // -- eax : number of arguments |
| 1552 | // -- edi : constructor function |
| 1553 | // -- esp[0] : return address |
| 1554 | // -- esp[(argc - n) * 4] : arg[n] (zero-based) |
| 1555 | // -- esp[(argc + 1) * 4] : receiver |
| 1556 | // ----------------------------------- |
| 1557 | |
| 1558 | // 1. Load the first argument into eax and get rid of the rest (including the |
| 1559 | // receiver). |
| 1560 | Label no_arguments; |
| 1561 | { |
| 1562 | __ test(eax, eax); |
| 1563 | __ j(zero, &no_arguments, Label::kNear); |
| 1564 | __ mov(ebx, Operand(esp, eax, times_pointer_size, 0)); |
| 1565 | __ PopReturnAddressTo(ecx); |
| 1566 | __ lea(esp, Operand(esp, eax, times_pointer_size, kPointerSize)); |
| 1567 | __ PushReturnAddressFrom(ecx); |
| 1568 | __ mov(eax, ebx); |
| 1569 | } |
| 1570 | |
| 1571 | // 2a. At least one argument, return eax if it's a string, otherwise |
| 1572 | // dispatch to appropriate conversion. |
| 1573 | Label to_string, symbol_descriptive_string; |
| 1574 | { |
| 1575 | __ JumpIfSmi(eax, &to_string, Label::kNear); |
| 1576 | STATIC_ASSERT(FIRST_NONSTRING_TYPE == SYMBOL_TYPE); |
| 1577 | __ CmpObjectType(eax, FIRST_NONSTRING_TYPE, edx); |
| 1578 | __ j(above, &to_string, Label::kNear); |
| 1579 | __ j(equal, &symbol_descriptive_string, Label::kNear); |
| 1580 | __ Ret(); |
| 1581 | } |
| 1582 | |
| 1583 | // 2b. No arguments, return the empty string (and pop the receiver). |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1584 | __ bind(&no_arguments); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1585 | { |
| 1586 | __ LoadRoot(eax, Heap::kempty_stringRootIndex); |
| 1587 | __ ret(1 * kPointerSize); |
| 1588 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1589 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1590 | // 3a. Convert eax to a string. |
| 1591 | __ bind(&to_string); |
| 1592 | { |
| 1593 | ToStringStub stub(masm->isolate()); |
| 1594 | __ TailCallStub(&stub); |
| 1595 | } |
| 1596 | |
| 1597 | // 3b. Convert symbol in eax to a string. |
| 1598 | __ bind(&symbol_descriptive_string); |
| 1599 | { |
| 1600 | __ PopReturnAddressTo(ecx); |
| 1601 | __ Push(eax); |
| 1602 | __ PushReturnAddressFrom(ecx); |
| 1603 | __ TailCallRuntime(Runtime::kSymbolDescriptiveString); |
| 1604 | } |
| 1605 | } |
| 1606 | |
| 1607 | |
| 1608 | // static |
| 1609 | void Builtins::Generate_StringConstructor_ConstructStub(MacroAssembler* masm) { |
| 1610 | // ----------- S t a t e ------------- |
| 1611 | // -- eax : number of arguments |
| 1612 | // -- edi : constructor function |
| 1613 | // -- edx : new target |
| 1614 | // -- esp[0] : return address |
| 1615 | // -- esp[(argc - n) * 4] : arg[n] (zero-based) |
| 1616 | // -- esp[(argc + 1) * 4] : receiver |
| 1617 | // ----------------------------------- |
| 1618 | |
| 1619 | // 1. Make sure we operate in the context of the called function. |
| 1620 | __ mov(esi, FieldOperand(edi, JSFunction::kContextOffset)); |
| 1621 | |
| 1622 | // 2. Load the first argument into ebx and get rid of the rest (including the |
| 1623 | // receiver). |
| 1624 | { |
| 1625 | Label no_arguments, done; |
| 1626 | __ test(eax, eax); |
| 1627 | __ j(zero, &no_arguments, Label::kNear); |
| 1628 | __ mov(ebx, Operand(esp, eax, times_pointer_size, 0)); |
| 1629 | __ jmp(&done, Label::kNear); |
| 1630 | __ bind(&no_arguments); |
| 1631 | __ LoadRoot(ebx, Heap::kempty_stringRootIndex); |
| 1632 | __ bind(&done); |
| 1633 | __ PopReturnAddressTo(ecx); |
| 1634 | __ lea(esp, Operand(esp, eax, times_pointer_size, kPointerSize)); |
| 1635 | __ PushReturnAddressFrom(ecx); |
| 1636 | } |
| 1637 | |
| 1638 | // 3. Make sure ebx is a string. |
| 1639 | { |
| 1640 | Label convert, done_convert; |
| 1641 | __ JumpIfSmi(ebx, &convert, Label::kNear); |
| 1642 | __ CmpObjectType(ebx, FIRST_NONSTRING_TYPE, ecx); |
| 1643 | __ j(below, &done_convert); |
| 1644 | __ bind(&convert); |
| 1645 | { |
| 1646 | FrameScope scope(masm, StackFrame::INTERNAL); |
| 1647 | ToStringStub stub(masm->isolate()); |
| 1648 | __ Push(edi); |
| 1649 | __ Push(edx); |
| 1650 | __ Move(eax, ebx); |
| 1651 | __ CallStub(&stub); |
| 1652 | __ Move(ebx, eax); |
| 1653 | __ Pop(edx); |
| 1654 | __ Pop(edi); |
| 1655 | } |
| 1656 | __ bind(&done_convert); |
| 1657 | } |
| 1658 | |
| 1659 | // 4. Check if new target and constructor differ. |
| 1660 | Label new_object; |
| 1661 | __ cmp(edx, edi); |
| 1662 | __ j(not_equal, &new_object); |
| 1663 | |
| 1664 | // 5. Allocate a JSValue wrapper for the string. |
| 1665 | __ AllocateJSValue(eax, edi, ebx, ecx, &new_object); |
| 1666 | __ Ret(); |
| 1667 | |
| 1668 | // 6. Fallback to the runtime to create new object. |
| 1669 | __ bind(&new_object); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1670 | { |
| 1671 | FrameScope scope(masm, StackFrame::INTERNAL); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1672 | __ Push(ebx); // the first argument |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1673 | FastNewObjectStub stub(masm->isolate()); |
| 1674 | __ CallStub(&stub); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1675 | __ Pop(FieldOperand(eax, JSValue::kValueOffset)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1676 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1677 | __ Ret(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1678 | } |
| 1679 | |
| 1680 | |
| 1681 | static void ArgumentsAdaptorStackCheck(MacroAssembler* masm, |
| 1682 | Label* stack_overflow) { |
| 1683 | // ----------- S t a t e ------------- |
| 1684 | // -- eax : actual number of arguments |
| 1685 | // -- ebx : expected number of arguments |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1686 | // -- edx : new target (passed through to callee) |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1687 | // ----------------------------------- |
| 1688 | // Check the stack for overflow. We are not trying to catch |
| 1689 | // interruptions (e.g. debug break and preemption) here, so the "real stack |
| 1690 | // limit" is checked. |
| 1691 | ExternalReference real_stack_limit = |
| 1692 | ExternalReference::address_of_real_stack_limit(masm->isolate()); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1693 | __ mov(edi, Operand::StaticVariable(real_stack_limit)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1694 | // Make ecx the space we have left. The stack might already be overflowed |
| 1695 | // here which will cause ecx to become negative. |
| 1696 | __ mov(ecx, esp); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1697 | __ sub(ecx, edi); |
| 1698 | // 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] | 1699 | // stack. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1700 | __ mov(edi, ebx); |
| 1701 | __ shl(edi, kPointerSizeLog2); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1702 | // Check if the arguments will overflow the stack. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1703 | __ cmp(ecx, edi); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1704 | __ j(less_equal, stack_overflow); // Signed comparison. |
| 1705 | } |
| 1706 | |
| 1707 | |
| 1708 | static void EnterArgumentsAdaptorFrame(MacroAssembler* masm) { |
| 1709 | __ push(ebp); |
| 1710 | __ mov(ebp, esp); |
| 1711 | |
| 1712 | // Store the arguments adaptor context sentinel. |
| 1713 | __ push(Immediate(Smi::FromInt(StackFrame::ARGUMENTS_ADAPTOR))); |
| 1714 | |
| 1715 | // Push the function on the stack. |
| 1716 | __ push(edi); |
| 1717 | |
| 1718 | // Preserve the number of arguments on the stack. Must preserve eax, |
| 1719 | // ebx and ecx because these registers are used when copying the |
| 1720 | // arguments and the receiver. |
| 1721 | STATIC_ASSERT(kSmiTagSize == 1); |
| 1722 | __ lea(edi, Operand(eax, eax, times_1, kSmiTag)); |
| 1723 | __ push(edi); |
| 1724 | } |
| 1725 | |
| 1726 | |
| 1727 | static void LeaveArgumentsAdaptorFrame(MacroAssembler* masm) { |
| 1728 | // Retrieve the number of arguments from the stack. |
| 1729 | __ mov(ebx, Operand(ebp, ArgumentsAdaptorFrameConstants::kLengthOffset)); |
| 1730 | |
| 1731 | // Leave the frame. |
| 1732 | __ leave(); |
| 1733 | |
| 1734 | // Remove caller arguments from the stack. |
| 1735 | STATIC_ASSERT(kSmiTagSize == 1 && kSmiTag == 0); |
| 1736 | __ pop(ecx); |
| 1737 | __ lea(esp, Operand(esp, ebx, times_2, 1 * kPointerSize)); // 1 ~ receiver |
| 1738 | __ push(ecx); |
| 1739 | } |
| 1740 | |
| 1741 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1742 | // static |
| 1743 | void Builtins::Generate_Apply(MacroAssembler* masm) { |
| 1744 | // ----------- S t a t e ------------- |
| 1745 | // -- eax : argumentsList |
| 1746 | // -- edi : target |
| 1747 | // -- edx : new.target (checked to be constructor or undefined) |
| 1748 | // -- esp[0] : return address. |
| 1749 | // -- esp[4] : thisArgument |
| 1750 | // ----------------------------------- |
| 1751 | |
| 1752 | // Create the list of arguments from the array-like argumentsList. |
| 1753 | { |
| 1754 | Label create_arguments, create_array, create_runtime, done_create; |
| 1755 | __ JumpIfSmi(eax, &create_runtime); |
| 1756 | |
| 1757 | // Load the map of argumentsList into ecx. |
| 1758 | __ mov(ecx, FieldOperand(eax, HeapObject::kMapOffset)); |
| 1759 | |
| 1760 | // Load native context into ebx. |
| 1761 | __ mov(ebx, NativeContextOperand()); |
| 1762 | |
| 1763 | // Check if argumentsList is an (unmodified) arguments object. |
| 1764 | __ cmp(ecx, ContextOperand(ebx, Context::SLOPPY_ARGUMENTS_MAP_INDEX)); |
| 1765 | __ j(equal, &create_arguments); |
| 1766 | __ cmp(ecx, ContextOperand(ebx, Context::STRICT_ARGUMENTS_MAP_INDEX)); |
| 1767 | __ j(equal, &create_arguments); |
| 1768 | |
| 1769 | // Check if argumentsList is a fast JSArray. |
| 1770 | __ CmpInstanceType(ecx, JS_ARRAY_TYPE); |
| 1771 | __ j(equal, &create_array); |
| 1772 | |
| 1773 | // Ask the runtime to create the list (actually a FixedArray). |
| 1774 | __ bind(&create_runtime); |
| 1775 | { |
| 1776 | FrameScope scope(masm, StackFrame::INTERNAL); |
| 1777 | __ Push(edi); |
| 1778 | __ Push(edx); |
| 1779 | __ Push(eax); |
| 1780 | __ CallRuntime(Runtime::kCreateListFromArrayLike); |
| 1781 | __ Pop(edx); |
| 1782 | __ Pop(edi); |
| 1783 | __ mov(ebx, FieldOperand(eax, FixedArray::kLengthOffset)); |
| 1784 | __ SmiUntag(ebx); |
| 1785 | } |
| 1786 | __ jmp(&done_create); |
| 1787 | |
| 1788 | // Try to create the list from an arguments object. |
| 1789 | __ bind(&create_arguments); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1790 | __ mov(ebx, FieldOperand(eax, JSArgumentsObject::kLengthOffset)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1791 | __ mov(ecx, FieldOperand(eax, JSObject::kElementsOffset)); |
| 1792 | __ cmp(ebx, FieldOperand(ecx, FixedArray::kLengthOffset)); |
| 1793 | __ j(not_equal, &create_runtime); |
| 1794 | __ SmiUntag(ebx); |
| 1795 | __ mov(eax, ecx); |
| 1796 | __ jmp(&done_create); |
| 1797 | |
| 1798 | // Try to create the list from a JSArray object. |
| 1799 | __ bind(&create_array); |
| 1800 | __ mov(ecx, FieldOperand(ecx, Map::kBitField2Offset)); |
| 1801 | __ DecodeField<Map::ElementsKindBits>(ecx); |
| 1802 | STATIC_ASSERT(FAST_SMI_ELEMENTS == 0); |
| 1803 | STATIC_ASSERT(FAST_HOLEY_SMI_ELEMENTS == 1); |
| 1804 | STATIC_ASSERT(FAST_ELEMENTS == 2); |
| 1805 | __ cmp(ecx, Immediate(FAST_ELEMENTS)); |
| 1806 | __ j(above, &create_runtime); |
| 1807 | __ cmp(ecx, Immediate(FAST_HOLEY_SMI_ELEMENTS)); |
| 1808 | __ j(equal, &create_runtime); |
| 1809 | __ mov(ebx, FieldOperand(eax, JSArray::kLengthOffset)); |
| 1810 | __ SmiUntag(ebx); |
| 1811 | __ mov(eax, FieldOperand(eax, JSArray::kElementsOffset)); |
| 1812 | |
| 1813 | __ bind(&done_create); |
| 1814 | } |
| 1815 | |
| 1816 | // Check for stack overflow. |
| 1817 | { |
| 1818 | // Check the stack for overflow. We are not trying to catch interruptions |
| 1819 | // (i.e. debug break and preemption) here, so check the "real stack limit". |
| 1820 | Label done; |
| 1821 | ExternalReference real_stack_limit = |
| 1822 | ExternalReference::address_of_real_stack_limit(masm->isolate()); |
| 1823 | __ mov(ecx, Operand::StaticVariable(real_stack_limit)); |
| 1824 | // Make ecx the space we have left. The stack might already be overflowed |
| 1825 | // here which will cause ecx to become negative. |
| 1826 | __ neg(ecx); |
| 1827 | __ add(ecx, esp); |
| 1828 | __ sar(ecx, kPointerSizeLog2); |
| 1829 | // Check if the arguments will overflow the stack. |
| 1830 | __ cmp(ecx, ebx); |
| 1831 | __ j(greater, &done, Label::kNear); // Signed comparison. |
| 1832 | __ TailCallRuntime(Runtime::kThrowStackOverflow); |
| 1833 | __ bind(&done); |
| 1834 | } |
| 1835 | |
| 1836 | // ----------- S t a t e ------------- |
| 1837 | // -- edi : target |
| 1838 | // -- eax : args (a FixedArray built from argumentsList) |
| 1839 | // -- ebx : len (number of elements to push from args) |
| 1840 | // -- edx : new.target (checked to be constructor or undefined) |
| 1841 | // -- esp[0] : return address. |
| 1842 | // -- esp[4] : thisArgument |
| 1843 | // ----------------------------------- |
| 1844 | |
| 1845 | // Push arguments onto the stack (thisArgument is already on the stack). |
| 1846 | { |
| 1847 | __ push(edx); |
| 1848 | __ fld_s(MemOperand(esp, 0)); |
| 1849 | __ lea(esp, Operand(esp, kFloatSize)); |
| 1850 | |
| 1851 | __ PopReturnAddressTo(edx); |
| 1852 | __ Move(ecx, Immediate(0)); |
| 1853 | Label done, loop; |
| 1854 | __ bind(&loop); |
| 1855 | __ cmp(ecx, ebx); |
| 1856 | __ j(equal, &done, Label::kNear); |
| 1857 | __ Push( |
| 1858 | FieldOperand(eax, ecx, times_pointer_size, FixedArray::kHeaderSize)); |
| 1859 | __ inc(ecx); |
| 1860 | __ jmp(&loop); |
| 1861 | __ bind(&done); |
| 1862 | __ PushReturnAddressFrom(edx); |
| 1863 | |
| 1864 | __ lea(esp, Operand(esp, -kFloatSize)); |
| 1865 | __ fstp_s(MemOperand(esp, 0)); |
| 1866 | __ pop(edx); |
| 1867 | |
| 1868 | __ Move(eax, ebx); |
| 1869 | } |
| 1870 | |
| 1871 | // Dispatch to Call or Construct depending on whether new.target is undefined. |
| 1872 | { |
| 1873 | __ CompareRoot(edx, Heap::kUndefinedValueRootIndex); |
| 1874 | __ j(equal, masm->isolate()->builtins()->Call(), RelocInfo::CODE_TARGET); |
| 1875 | __ Jump(masm->isolate()->builtins()->Construct(), RelocInfo::CODE_TARGET); |
| 1876 | } |
| 1877 | } |
| 1878 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1879 | namespace { |
| 1880 | |
| 1881 | // Drops top JavaScript frame and an arguments adaptor frame below it (if |
| 1882 | // present) preserving all the arguments prepared for current call. |
| 1883 | // Does nothing if debugger is currently active. |
| 1884 | // ES6 14.6.3. PrepareForTailCall |
| 1885 | // |
| 1886 | // Stack structure for the function g() tail calling f(): |
| 1887 | // |
| 1888 | // ------- Caller frame: ------- |
| 1889 | // | ... |
| 1890 | // | g()'s arg M |
| 1891 | // | ... |
| 1892 | // | g()'s arg 1 |
| 1893 | // | g()'s receiver arg |
| 1894 | // | g()'s caller pc |
| 1895 | // ------- g()'s frame: ------- |
| 1896 | // | g()'s caller fp <- fp |
| 1897 | // | g()'s context |
| 1898 | // | function pointer: g |
| 1899 | // | ------------------------- |
| 1900 | // | ... |
| 1901 | // | ... |
| 1902 | // | f()'s arg N |
| 1903 | // | ... |
| 1904 | // | f()'s arg 1 |
| 1905 | // | f()'s receiver arg |
| 1906 | // | f()'s caller pc <- sp |
| 1907 | // ---------------------- |
| 1908 | // |
| 1909 | void PrepareForTailCall(MacroAssembler* masm, Register args_reg, |
| 1910 | Register scratch1, Register scratch2, |
| 1911 | Register scratch3) { |
| 1912 | DCHECK(!AreAliased(args_reg, scratch1, scratch2, scratch3)); |
| 1913 | Comment cmnt(masm, "[ PrepareForTailCall"); |
| 1914 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1915 | // Prepare for tail call only if ES2015 tail call elimination is enabled. |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1916 | Label done; |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1917 | ExternalReference is_tail_call_elimination_enabled = |
| 1918 | ExternalReference::is_tail_call_elimination_enabled_address( |
| 1919 | masm->isolate()); |
| 1920 | __ movzx_b(scratch1, |
| 1921 | Operand::StaticVariable(is_tail_call_elimination_enabled)); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1922 | __ cmp(scratch1, Immediate(0)); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1923 | __ j(equal, &done, Label::kNear); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1924 | |
| 1925 | // Drop possible interpreter handler/stub frame. |
| 1926 | { |
| 1927 | Label no_interpreter_frame; |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1928 | __ cmp(Operand(ebp, CommonFrameConstants::kContextOrFrameTypeOffset), |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1929 | Immediate(Smi::FromInt(StackFrame::STUB))); |
| 1930 | __ j(not_equal, &no_interpreter_frame, Label::kNear); |
| 1931 | __ mov(ebp, Operand(ebp, StandardFrameConstants::kCallerFPOffset)); |
| 1932 | __ bind(&no_interpreter_frame); |
| 1933 | } |
| 1934 | |
| 1935 | // Check if next frame is an arguments adaptor frame. |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1936 | Register caller_args_count_reg = scratch1; |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1937 | Label no_arguments_adaptor, formal_parameter_count_loaded; |
| 1938 | __ mov(scratch2, Operand(ebp, StandardFrameConstants::kCallerFPOffset)); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1939 | __ cmp(Operand(scratch2, CommonFrameConstants::kContextOrFrameTypeOffset), |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1940 | Immediate(Smi::FromInt(StackFrame::ARGUMENTS_ADAPTOR))); |
| 1941 | __ j(not_equal, &no_arguments_adaptor, Label::kNear); |
| 1942 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1943 | // Drop current frame and load arguments count from arguments adaptor frame. |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1944 | __ mov(ebp, scratch2); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1945 | __ mov(caller_args_count_reg, |
| 1946 | Operand(ebp, ArgumentsAdaptorFrameConstants::kLengthOffset)); |
| 1947 | __ SmiUntag(caller_args_count_reg); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1948 | __ jmp(&formal_parameter_count_loaded, Label::kNear); |
| 1949 | |
| 1950 | __ bind(&no_arguments_adaptor); |
| 1951 | // Load caller's formal parameter count |
| 1952 | __ mov(scratch1, Operand(ebp, JavaScriptFrameConstants::kFunctionOffset)); |
| 1953 | __ mov(scratch1, |
| 1954 | FieldOperand(scratch1, JSFunction::kSharedFunctionInfoOffset)); |
| 1955 | __ mov( |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1956 | caller_args_count_reg, |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1957 | FieldOperand(scratch1, SharedFunctionInfo::kFormalParameterCountOffset)); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1958 | __ SmiUntag(caller_args_count_reg); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1959 | |
| 1960 | __ bind(&formal_parameter_count_loaded); |
| 1961 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1962 | ParameterCount callee_args_count(args_reg); |
| 1963 | __ PrepareForTailCall(callee_args_count, caller_args_count_reg, scratch2, |
| 1964 | scratch3, ReturnAddressState::kOnStack, 0); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1965 | __ bind(&done); |
| 1966 | } |
| 1967 | } // namespace |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1968 | |
| 1969 | // static |
| 1970 | void Builtins::Generate_CallFunction(MacroAssembler* masm, |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1971 | ConvertReceiverMode mode, |
| 1972 | TailCallMode tail_call_mode) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1973 | // ----------- S t a t e ------------- |
| 1974 | // -- eax : the number of arguments (not including the receiver) |
| 1975 | // -- edi : the function to call (checked to be a JSFunction) |
| 1976 | // ----------------------------------- |
| 1977 | __ AssertFunction(edi); |
| 1978 | |
| 1979 | // See ES6 section 9.2.1 [[Call]] ( thisArgument, argumentsList) |
| 1980 | // Check that the function is not a "classConstructor". |
| 1981 | Label class_constructor; |
| 1982 | __ mov(edx, FieldOperand(edi, JSFunction::kSharedFunctionInfoOffset)); |
| 1983 | __ test_b(FieldOperand(edx, SharedFunctionInfo::kFunctionKindByteOffset), |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1984 | Immediate(SharedFunctionInfo::kClassConstructorBitsWithinByte)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1985 | __ j(not_zero, &class_constructor); |
| 1986 | |
| 1987 | // Enter the context of the function; ToObject has to run in the function |
| 1988 | // context, and we also need to take the global proxy from the function |
| 1989 | // context in case of conversion. |
| 1990 | STATIC_ASSERT(SharedFunctionInfo::kNativeByteOffset == |
| 1991 | SharedFunctionInfo::kStrictModeByteOffset); |
| 1992 | __ mov(esi, FieldOperand(edi, JSFunction::kContextOffset)); |
| 1993 | // We need to convert the receiver for non-native sloppy mode functions. |
| 1994 | Label done_convert; |
| 1995 | __ test_b(FieldOperand(edx, SharedFunctionInfo::kNativeByteOffset), |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1996 | Immediate((1 << SharedFunctionInfo::kNativeBitWithinByte) | |
| 1997 | (1 << SharedFunctionInfo::kStrictModeBitWithinByte))); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1998 | __ j(not_zero, &done_convert); |
| 1999 | { |
| 2000 | // ----------- S t a t e ------------- |
| 2001 | // -- eax : the number of arguments (not including the receiver) |
| 2002 | // -- edx : the shared function info. |
| 2003 | // -- edi : the function to call (checked to be a JSFunction) |
| 2004 | // -- esi : the function context. |
| 2005 | // ----------------------------------- |
| 2006 | |
| 2007 | if (mode == ConvertReceiverMode::kNullOrUndefined) { |
| 2008 | // Patch receiver to global proxy. |
| 2009 | __ LoadGlobalProxy(ecx); |
| 2010 | } else { |
| 2011 | Label convert_to_object, convert_receiver; |
| 2012 | __ mov(ecx, Operand(esp, eax, times_pointer_size, kPointerSize)); |
| 2013 | __ JumpIfSmi(ecx, &convert_to_object, Label::kNear); |
| 2014 | STATIC_ASSERT(LAST_JS_RECEIVER_TYPE == LAST_TYPE); |
| 2015 | __ CmpObjectType(ecx, FIRST_JS_RECEIVER_TYPE, ebx); |
| 2016 | __ j(above_equal, &done_convert); |
| 2017 | if (mode != ConvertReceiverMode::kNotNullOrUndefined) { |
| 2018 | Label convert_global_proxy; |
| 2019 | __ JumpIfRoot(ecx, Heap::kUndefinedValueRootIndex, |
| 2020 | &convert_global_proxy, Label::kNear); |
| 2021 | __ JumpIfNotRoot(ecx, Heap::kNullValueRootIndex, &convert_to_object, |
| 2022 | Label::kNear); |
| 2023 | __ bind(&convert_global_proxy); |
| 2024 | { |
| 2025 | // Patch receiver to global proxy. |
| 2026 | __ LoadGlobalProxy(ecx); |
| 2027 | } |
| 2028 | __ jmp(&convert_receiver); |
| 2029 | } |
| 2030 | __ bind(&convert_to_object); |
| 2031 | { |
| 2032 | // Convert receiver using ToObject. |
| 2033 | // TODO(bmeurer): Inline the allocation here to avoid building the frame |
| 2034 | // in the fast case? (fall back to AllocateInNewSpace?) |
| 2035 | FrameScope scope(masm, StackFrame::INTERNAL); |
| 2036 | __ SmiTag(eax); |
| 2037 | __ Push(eax); |
| 2038 | __ Push(edi); |
| 2039 | __ mov(eax, ecx); |
| 2040 | ToObjectStub stub(masm->isolate()); |
| 2041 | __ CallStub(&stub); |
| 2042 | __ mov(ecx, eax); |
| 2043 | __ Pop(edi); |
| 2044 | __ Pop(eax); |
| 2045 | __ SmiUntag(eax); |
| 2046 | } |
| 2047 | __ mov(edx, FieldOperand(edi, JSFunction::kSharedFunctionInfoOffset)); |
| 2048 | __ bind(&convert_receiver); |
| 2049 | } |
| 2050 | __ mov(Operand(esp, eax, times_pointer_size, kPointerSize), ecx); |
| 2051 | } |
| 2052 | __ bind(&done_convert); |
| 2053 | |
| 2054 | // ----------- S t a t e ------------- |
| 2055 | // -- eax : the number of arguments (not including the receiver) |
| 2056 | // -- edx : the shared function info. |
| 2057 | // -- edi : the function to call (checked to be a JSFunction) |
| 2058 | // -- esi : the function context. |
| 2059 | // ----------------------------------- |
| 2060 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2061 | if (tail_call_mode == TailCallMode::kAllow) { |
| 2062 | PrepareForTailCall(masm, eax, ebx, ecx, edx); |
| 2063 | // Reload shared function info. |
| 2064 | __ mov(edx, FieldOperand(edi, JSFunction::kSharedFunctionInfoOffset)); |
| 2065 | } |
| 2066 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2067 | __ mov(ebx, |
| 2068 | FieldOperand(edx, SharedFunctionInfo::kFormalParameterCountOffset)); |
| 2069 | __ SmiUntag(ebx); |
| 2070 | ParameterCount actual(eax); |
| 2071 | ParameterCount expected(ebx); |
| 2072 | __ InvokeFunctionCode(edi, no_reg, expected, actual, JUMP_FUNCTION, |
| 2073 | CheckDebugStepCallWrapper()); |
| 2074 | // The function is a "classConstructor", need to raise an exception. |
| 2075 | __ bind(&class_constructor); |
| 2076 | { |
| 2077 | FrameScope frame(masm, StackFrame::INTERNAL); |
| 2078 | __ push(edi); |
| 2079 | __ CallRuntime(Runtime::kThrowConstructorNonCallableError); |
| 2080 | } |
| 2081 | } |
| 2082 | |
| 2083 | |
| 2084 | namespace { |
| 2085 | |
| 2086 | void Generate_PushBoundArguments(MacroAssembler* masm) { |
| 2087 | // ----------- S t a t e ------------- |
| 2088 | // -- eax : the number of arguments (not including the receiver) |
| 2089 | // -- edx : new.target (only in case of [[Construct]]) |
| 2090 | // -- edi : target (checked to be a JSBoundFunction) |
| 2091 | // ----------------------------------- |
| 2092 | |
| 2093 | // Load [[BoundArguments]] into ecx and length of that into ebx. |
| 2094 | Label no_bound_arguments; |
| 2095 | __ mov(ecx, FieldOperand(edi, JSBoundFunction::kBoundArgumentsOffset)); |
| 2096 | __ mov(ebx, FieldOperand(ecx, FixedArray::kLengthOffset)); |
| 2097 | __ SmiUntag(ebx); |
| 2098 | __ test(ebx, ebx); |
| 2099 | __ j(zero, &no_bound_arguments); |
| 2100 | { |
| 2101 | // ----------- S t a t e ------------- |
| 2102 | // -- eax : the number of arguments (not including the receiver) |
| 2103 | // -- edx : new.target (only in case of [[Construct]]) |
| 2104 | // -- edi : target (checked to be a JSBoundFunction) |
| 2105 | // -- ecx : the [[BoundArguments]] (implemented as FixedArray) |
| 2106 | // -- ebx : the number of [[BoundArguments]] |
| 2107 | // ----------------------------------- |
| 2108 | |
| 2109 | // Reserve stack space for the [[BoundArguments]]. |
| 2110 | { |
| 2111 | Label done; |
| 2112 | __ lea(ecx, Operand(ebx, times_pointer_size, 0)); |
| 2113 | __ sub(esp, ecx); |
| 2114 | // Check the stack for overflow. We are not trying to catch interruptions |
| 2115 | // (i.e. debug break and preemption) here, so check the "real stack |
| 2116 | // limit". |
| 2117 | __ CompareRoot(esp, ecx, Heap::kRealStackLimitRootIndex); |
| 2118 | __ j(greater, &done, Label::kNear); // Signed comparison. |
| 2119 | // Restore the stack pointer. |
| 2120 | __ lea(esp, Operand(esp, ebx, times_pointer_size, 0)); |
| 2121 | { |
| 2122 | FrameScope scope(masm, StackFrame::MANUAL); |
| 2123 | __ EnterFrame(StackFrame::INTERNAL); |
| 2124 | __ CallRuntime(Runtime::kThrowStackOverflow); |
| 2125 | } |
| 2126 | __ bind(&done); |
| 2127 | } |
| 2128 | |
| 2129 | // Adjust effective number of arguments to include return address. |
| 2130 | __ inc(eax); |
| 2131 | |
| 2132 | // Relocate arguments and return address down the stack. |
| 2133 | { |
| 2134 | Label loop; |
| 2135 | __ Set(ecx, 0); |
| 2136 | __ lea(ebx, Operand(esp, ebx, times_pointer_size, 0)); |
| 2137 | __ bind(&loop); |
| 2138 | __ fld_s(Operand(ebx, ecx, times_pointer_size, 0)); |
| 2139 | __ fstp_s(Operand(esp, ecx, times_pointer_size, 0)); |
| 2140 | __ inc(ecx); |
| 2141 | __ cmp(ecx, eax); |
| 2142 | __ j(less, &loop); |
| 2143 | } |
| 2144 | |
| 2145 | // Copy [[BoundArguments]] to the stack (below the arguments). |
| 2146 | { |
| 2147 | Label loop; |
| 2148 | __ mov(ecx, FieldOperand(edi, JSBoundFunction::kBoundArgumentsOffset)); |
| 2149 | __ mov(ebx, FieldOperand(ecx, FixedArray::kLengthOffset)); |
| 2150 | __ SmiUntag(ebx); |
| 2151 | __ bind(&loop); |
| 2152 | __ dec(ebx); |
| 2153 | __ fld_s( |
| 2154 | FieldOperand(ecx, ebx, times_pointer_size, FixedArray::kHeaderSize)); |
| 2155 | __ fstp_s(Operand(esp, eax, times_pointer_size, 0)); |
| 2156 | __ lea(eax, Operand(eax, 1)); |
| 2157 | __ j(greater, &loop); |
| 2158 | } |
| 2159 | |
| 2160 | // Adjust effective number of arguments (eax contains the number of |
| 2161 | // arguments from the call plus return address plus the number of |
| 2162 | // [[BoundArguments]]), so we need to subtract one for the return address. |
| 2163 | __ dec(eax); |
| 2164 | } |
| 2165 | __ bind(&no_bound_arguments); |
| 2166 | } |
| 2167 | |
| 2168 | } // namespace |
| 2169 | |
| 2170 | |
| 2171 | // static |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2172 | void Builtins::Generate_CallBoundFunctionImpl(MacroAssembler* masm, |
| 2173 | TailCallMode tail_call_mode) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2174 | // ----------- S t a t e ------------- |
| 2175 | // -- eax : the number of arguments (not including the receiver) |
| 2176 | // -- edi : the function to call (checked to be a JSBoundFunction) |
| 2177 | // ----------------------------------- |
| 2178 | __ AssertBoundFunction(edi); |
| 2179 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2180 | if (tail_call_mode == TailCallMode::kAllow) { |
| 2181 | PrepareForTailCall(masm, eax, ebx, ecx, edx); |
| 2182 | } |
| 2183 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2184 | // Patch the receiver to [[BoundThis]]. |
| 2185 | __ mov(ebx, FieldOperand(edi, JSBoundFunction::kBoundThisOffset)); |
| 2186 | __ mov(Operand(esp, eax, times_pointer_size, kPointerSize), ebx); |
| 2187 | |
| 2188 | // Push the [[BoundArguments]] onto the stack. |
| 2189 | Generate_PushBoundArguments(masm); |
| 2190 | |
| 2191 | // Call the [[BoundTargetFunction]] via the Call builtin. |
| 2192 | __ mov(edi, FieldOperand(edi, JSBoundFunction::kBoundTargetFunctionOffset)); |
| 2193 | __ mov(ecx, Operand::StaticVariable(ExternalReference( |
| 2194 | Builtins::kCall_ReceiverIsAny, masm->isolate()))); |
| 2195 | __ lea(ecx, FieldOperand(ecx, Code::kHeaderSize)); |
| 2196 | __ jmp(ecx); |
| 2197 | } |
| 2198 | |
| 2199 | |
| 2200 | // static |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2201 | void Builtins::Generate_Call(MacroAssembler* masm, ConvertReceiverMode mode, |
| 2202 | TailCallMode tail_call_mode) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2203 | // ----------- S t a t e ------------- |
| 2204 | // -- eax : the number of arguments (not including the receiver) |
| 2205 | // -- edi : the target to call (can be any Object). |
| 2206 | // ----------------------------------- |
| 2207 | |
| 2208 | Label non_callable, non_function, non_smi; |
| 2209 | __ JumpIfSmi(edi, &non_callable); |
| 2210 | __ bind(&non_smi); |
| 2211 | __ CmpObjectType(edi, JS_FUNCTION_TYPE, ecx); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2212 | __ j(equal, masm->isolate()->builtins()->CallFunction(mode, tail_call_mode), |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2213 | RelocInfo::CODE_TARGET); |
| 2214 | __ CmpInstanceType(ecx, JS_BOUND_FUNCTION_TYPE); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2215 | __ j(equal, masm->isolate()->builtins()->CallBoundFunction(tail_call_mode), |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2216 | RelocInfo::CODE_TARGET); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2217 | |
| 2218 | // Check if target has a [[Call]] internal method. |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 2219 | __ test_b(FieldOperand(ecx, Map::kBitFieldOffset), |
| 2220 | Immediate(1 << Map::kIsCallable)); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2221 | __ j(zero, &non_callable); |
| 2222 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2223 | __ CmpInstanceType(ecx, JS_PROXY_TYPE); |
| 2224 | __ j(not_equal, &non_function); |
| 2225 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2226 | // 0. Prepare for tail call if necessary. |
| 2227 | if (tail_call_mode == TailCallMode::kAllow) { |
| 2228 | PrepareForTailCall(masm, eax, ebx, ecx, edx); |
| 2229 | } |
| 2230 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2231 | // 1. Runtime fallback for Proxy [[Call]]. |
| 2232 | __ PopReturnAddressTo(ecx); |
| 2233 | __ Push(edi); |
| 2234 | __ PushReturnAddressFrom(ecx); |
| 2235 | // Increase the arguments size to include the pushed function and the |
| 2236 | // existing receiver on the stack. |
| 2237 | __ add(eax, Immediate(2)); |
| 2238 | // Tail-call to the runtime. |
| 2239 | __ JumpToExternalReference( |
| 2240 | ExternalReference(Runtime::kJSProxyCall, masm->isolate())); |
| 2241 | |
| 2242 | // 2. Call to something else, which might have a [[Call]] internal method (if |
| 2243 | // not we raise an exception). |
| 2244 | __ bind(&non_function); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2245 | // Overwrite the original receiver with the (original) target. |
| 2246 | __ mov(Operand(esp, eax, times_pointer_size, kPointerSize), edi); |
| 2247 | // Let the "call_as_function_delegate" take care of the rest. |
| 2248 | __ LoadGlobalFunction(Context::CALL_AS_FUNCTION_DELEGATE_INDEX, edi); |
| 2249 | __ Jump(masm->isolate()->builtins()->CallFunction( |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2250 | ConvertReceiverMode::kNotNullOrUndefined, tail_call_mode), |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2251 | RelocInfo::CODE_TARGET); |
| 2252 | |
| 2253 | // 3. Call to something that is not callable. |
| 2254 | __ bind(&non_callable); |
| 2255 | { |
| 2256 | FrameScope scope(masm, StackFrame::INTERNAL); |
| 2257 | __ Push(edi); |
| 2258 | __ CallRuntime(Runtime::kThrowCalledNonCallable); |
| 2259 | } |
| 2260 | } |
| 2261 | |
| 2262 | |
| 2263 | // static |
| 2264 | void Builtins::Generate_ConstructFunction(MacroAssembler* masm) { |
| 2265 | // ----------- S t a t e ------------- |
| 2266 | // -- eax : the number of arguments (not including the receiver) |
| 2267 | // -- edx : the new target (checked to be a constructor) |
| 2268 | // -- edi : the constructor to call (checked to be a JSFunction) |
| 2269 | // ----------------------------------- |
| 2270 | __ AssertFunction(edi); |
| 2271 | |
| 2272 | // Calling convention for function specific ConstructStubs require |
| 2273 | // ebx to contain either an AllocationSite or undefined. |
| 2274 | __ LoadRoot(ebx, Heap::kUndefinedValueRootIndex); |
| 2275 | |
| 2276 | // Tail call to the function-specific construct stub (still in the caller |
| 2277 | // context at this point). |
| 2278 | __ mov(ecx, FieldOperand(edi, JSFunction::kSharedFunctionInfoOffset)); |
| 2279 | __ mov(ecx, FieldOperand(ecx, SharedFunctionInfo::kConstructStubOffset)); |
| 2280 | __ lea(ecx, FieldOperand(ecx, Code::kHeaderSize)); |
| 2281 | __ jmp(ecx); |
| 2282 | } |
| 2283 | |
| 2284 | |
| 2285 | // static |
| 2286 | void Builtins::Generate_ConstructBoundFunction(MacroAssembler* masm) { |
| 2287 | // ----------- S t a t e ------------- |
| 2288 | // -- eax : the number of arguments (not including the receiver) |
| 2289 | // -- edx : the new target (checked to be a constructor) |
| 2290 | // -- edi : the constructor to call (checked to be a JSBoundFunction) |
| 2291 | // ----------------------------------- |
| 2292 | __ AssertBoundFunction(edi); |
| 2293 | |
| 2294 | // Push the [[BoundArguments]] onto the stack. |
| 2295 | Generate_PushBoundArguments(masm); |
| 2296 | |
| 2297 | // Patch new.target to [[BoundTargetFunction]] if new.target equals target. |
| 2298 | { |
| 2299 | Label done; |
| 2300 | __ cmp(edi, edx); |
| 2301 | __ j(not_equal, &done, Label::kNear); |
| 2302 | __ mov(edx, FieldOperand(edi, JSBoundFunction::kBoundTargetFunctionOffset)); |
| 2303 | __ bind(&done); |
| 2304 | } |
| 2305 | |
| 2306 | // Construct the [[BoundTargetFunction]] via the Construct builtin. |
| 2307 | __ mov(edi, FieldOperand(edi, JSBoundFunction::kBoundTargetFunctionOffset)); |
| 2308 | __ mov(ecx, Operand::StaticVariable( |
| 2309 | ExternalReference(Builtins::kConstruct, masm->isolate()))); |
| 2310 | __ lea(ecx, FieldOperand(ecx, Code::kHeaderSize)); |
| 2311 | __ jmp(ecx); |
| 2312 | } |
| 2313 | |
| 2314 | |
| 2315 | // static |
| 2316 | void Builtins::Generate_ConstructProxy(MacroAssembler* masm) { |
| 2317 | // ----------- S t a t e ------------- |
| 2318 | // -- eax : the number of arguments (not including the receiver) |
| 2319 | // -- edi : the constructor to call (checked to be a JSProxy) |
| 2320 | // -- edx : the new target (either the same as the constructor or |
| 2321 | // the JSFunction on which new was invoked initially) |
| 2322 | // ----------------------------------- |
| 2323 | |
| 2324 | // Call into the Runtime for Proxy [[Construct]]. |
| 2325 | __ PopReturnAddressTo(ecx); |
| 2326 | __ Push(edi); |
| 2327 | __ Push(edx); |
| 2328 | __ PushReturnAddressFrom(ecx); |
| 2329 | // Include the pushed new_target, constructor and the receiver. |
| 2330 | __ add(eax, Immediate(3)); |
| 2331 | // Tail-call to the runtime. |
| 2332 | __ JumpToExternalReference( |
| 2333 | ExternalReference(Runtime::kJSProxyConstruct, masm->isolate())); |
| 2334 | } |
| 2335 | |
| 2336 | |
| 2337 | // static |
| 2338 | void Builtins::Generate_Construct(MacroAssembler* masm) { |
| 2339 | // ----------- S t a t e ------------- |
| 2340 | // -- eax : the number of arguments (not including the receiver) |
| 2341 | // -- edx : the new target (either the same as the constructor or |
| 2342 | // the JSFunction on which new was invoked initially) |
| 2343 | // -- edi : the constructor to call (can be any Object) |
| 2344 | // ----------------------------------- |
| 2345 | |
| 2346 | // Check if target is a Smi. |
| 2347 | Label non_constructor; |
| 2348 | __ JumpIfSmi(edi, &non_constructor, Label::kNear); |
| 2349 | |
| 2350 | // Dispatch based on instance type. |
| 2351 | __ CmpObjectType(edi, JS_FUNCTION_TYPE, ecx); |
| 2352 | __ j(equal, masm->isolate()->builtins()->ConstructFunction(), |
| 2353 | RelocInfo::CODE_TARGET); |
| 2354 | |
| 2355 | // Check if target has a [[Construct]] internal method. |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 2356 | __ test_b(FieldOperand(ecx, Map::kBitFieldOffset), |
| 2357 | Immediate(1 << Map::kIsConstructor)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2358 | __ j(zero, &non_constructor, Label::kNear); |
| 2359 | |
| 2360 | // Only dispatch to bound functions after checking whether they are |
| 2361 | // constructors. |
| 2362 | __ CmpInstanceType(ecx, JS_BOUND_FUNCTION_TYPE); |
| 2363 | __ j(equal, masm->isolate()->builtins()->ConstructBoundFunction(), |
| 2364 | RelocInfo::CODE_TARGET); |
| 2365 | |
| 2366 | // Only dispatch to proxies after checking whether they are constructors. |
| 2367 | __ CmpInstanceType(ecx, JS_PROXY_TYPE); |
| 2368 | __ j(equal, masm->isolate()->builtins()->ConstructProxy(), |
| 2369 | RelocInfo::CODE_TARGET); |
| 2370 | |
| 2371 | // Called Construct on an exotic Object with a [[Construct]] internal method. |
| 2372 | { |
| 2373 | // Overwrite the original receiver with the (original) target. |
| 2374 | __ mov(Operand(esp, eax, times_pointer_size, kPointerSize), edi); |
| 2375 | // Let the "call_as_constructor_delegate" take care of the rest. |
| 2376 | __ LoadGlobalFunction(Context::CALL_AS_CONSTRUCTOR_DELEGATE_INDEX, edi); |
| 2377 | __ Jump(masm->isolate()->builtins()->CallFunction(), |
| 2378 | RelocInfo::CODE_TARGET); |
| 2379 | } |
| 2380 | |
| 2381 | // Called Construct on an Object that doesn't have a [[Construct]] internal |
| 2382 | // method. |
| 2383 | __ bind(&non_constructor); |
| 2384 | __ Jump(masm->isolate()->builtins()->ConstructedNonConstructable(), |
| 2385 | RelocInfo::CODE_TARGET); |
| 2386 | } |
| 2387 | |
| 2388 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2389 | void Builtins::Generate_ArgumentsAdaptorTrampoline(MacroAssembler* masm) { |
| 2390 | // ----------- S t a t e ------------- |
| 2391 | // -- eax : actual number of arguments |
| 2392 | // -- ebx : expected number of arguments |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2393 | // -- edx : new target (passed through to callee) |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2394 | // -- edi : function (passed through to callee) |
| 2395 | // ----------------------------------- |
| 2396 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2397 | Label invoke, dont_adapt_arguments, stack_overflow; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2398 | __ IncrementCounter(masm->isolate()->counters()->arguments_adaptors(), 1); |
| 2399 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2400 | Label enough, too_few; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2401 | __ cmp(eax, ebx); |
| 2402 | __ j(less, &too_few); |
| 2403 | __ cmp(ebx, SharedFunctionInfo::kDontAdaptArgumentsSentinel); |
| 2404 | __ j(equal, &dont_adapt_arguments); |
| 2405 | |
| 2406 | { // Enough parameters: Actual >= expected. |
| 2407 | __ bind(&enough); |
| 2408 | EnterArgumentsAdaptorFrame(masm); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2409 | ArgumentsAdaptorStackCheck(masm, &stack_overflow); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2410 | |
| 2411 | // Copy receiver and all expected arguments. |
| 2412 | const int offset = StandardFrameConstants::kCallerSPOffset; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2413 | __ lea(edi, Operand(ebp, eax, times_4, offset)); |
| 2414 | __ mov(eax, -1); // account for receiver |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2415 | |
| 2416 | Label copy; |
| 2417 | __ bind(©); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2418 | __ inc(eax); |
| 2419 | __ push(Operand(edi, 0)); |
| 2420 | __ sub(edi, Immediate(kPointerSize)); |
| 2421 | __ cmp(eax, ebx); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2422 | __ j(less, ©); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2423 | // eax now contains the expected number of arguments. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2424 | __ jmp(&invoke); |
| 2425 | } |
| 2426 | |
| 2427 | { // Too few parameters: Actual < expected. |
| 2428 | __ bind(&too_few); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2429 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2430 | EnterArgumentsAdaptorFrame(masm); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2431 | ArgumentsAdaptorStackCheck(masm, &stack_overflow); |
| 2432 | |
| 2433 | // Remember expected arguments in ecx. |
| 2434 | __ mov(ecx, ebx); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2435 | |
| 2436 | // Copy receiver and all actual arguments. |
| 2437 | const int offset = StandardFrameConstants::kCallerSPOffset; |
| 2438 | __ lea(edi, Operand(ebp, eax, times_4, offset)); |
| 2439 | // ebx = expected - actual. |
| 2440 | __ sub(ebx, eax); |
| 2441 | // eax = -actual - 1 |
| 2442 | __ neg(eax); |
| 2443 | __ sub(eax, Immediate(1)); |
| 2444 | |
| 2445 | Label copy; |
| 2446 | __ bind(©); |
| 2447 | __ inc(eax); |
| 2448 | __ push(Operand(edi, 0)); |
| 2449 | __ sub(edi, Immediate(kPointerSize)); |
| 2450 | __ test(eax, eax); |
| 2451 | __ j(not_zero, ©); |
| 2452 | |
| 2453 | // Fill remaining expected arguments with undefined values. |
| 2454 | Label fill; |
| 2455 | __ bind(&fill); |
| 2456 | __ inc(eax); |
| 2457 | __ push(Immediate(masm->isolate()->factory()->undefined_value())); |
| 2458 | __ cmp(eax, ebx); |
| 2459 | __ j(less, &fill); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2460 | |
| 2461 | // Restore expected arguments. |
| 2462 | __ mov(eax, ecx); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2463 | } |
| 2464 | |
| 2465 | // Call the entry point. |
| 2466 | __ bind(&invoke); |
| 2467 | // Restore function pointer. |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 2468 | __ mov(edi, Operand(ebp, ArgumentsAdaptorFrameConstants::kFunctionOffset)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2469 | // eax : expected number of arguments |
| 2470 | // edx : new target (passed through to callee) |
| 2471 | // edi : function (passed through to callee) |
| 2472 | __ mov(ecx, FieldOperand(edi, JSFunction::kCodeEntryOffset)); |
| 2473 | __ call(ecx); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2474 | |
| 2475 | // Store offset of return address for deoptimizer. |
| 2476 | masm->isolate()->heap()->SetArgumentsAdaptorDeoptPCOffset(masm->pc_offset()); |
| 2477 | |
| 2478 | // Leave frame and return. |
| 2479 | LeaveArgumentsAdaptorFrame(masm); |
| 2480 | __ ret(0); |
| 2481 | |
| 2482 | // ------------------------------------------- |
| 2483 | // Dont adapt arguments. |
| 2484 | // ------------------------------------------- |
| 2485 | __ bind(&dont_adapt_arguments); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2486 | __ mov(ecx, FieldOperand(edi, JSFunction::kCodeEntryOffset)); |
| 2487 | __ jmp(ecx); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2488 | |
| 2489 | __ bind(&stack_overflow); |
| 2490 | { |
| 2491 | FrameScope frame(masm, StackFrame::MANUAL); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2492 | __ CallRuntime(Runtime::kThrowStackOverflow); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2493 | __ int3(); |
| 2494 | } |
| 2495 | } |
| 2496 | |
| 2497 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2498 | static void CompatibleReceiverCheck(MacroAssembler* masm, Register receiver, |
| 2499 | Register function_template_info, |
| 2500 | Register scratch0, Register scratch1, |
| 2501 | Label* receiver_check_failed) { |
| 2502 | // If there is no signature, return the holder. |
| 2503 | __ CompareRoot(FieldOperand(function_template_info, |
| 2504 | FunctionTemplateInfo::kSignatureOffset), |
| 2505 | Heap::kUndefinedValueRootIndex); |
| 2506 | Label receiver_check_passed; |
| 2507 | __ j(equal, &receiver_check_passed, Label::kNear); |
| 2508 | |
| 2509 | // Walk the prototype chain. |
| 2510 | __ mov(scratch0, FieldOperand(receiver, HeapObject::kMapOffset)); |
| 2511 | Label prototype_loop_start; |
| 2512 | __ bind(&prototype_loop_start); |
| 2513 | |
| 2514 | // Get the constructor, if any. |
| 2515 | __ GetMapConstructor(scratch0, scratch0, scratch1); |
| 2516 | __ CmpInstanceType(scratch1, JS_FUNCTION_TYPE); |
| 2517 | Label next_prototype; |
| 2518 | __ j(not_equal, &next_prototype, Label::kNear); |
| 2519 | |
| 2520 | // Get the constructor's signature. |
| 2521 | __ mov(scratch0, |
| 2522 | FieldOperand(scratch0, JSFunction::kSharedFunctionInfoOffset)); |
| 2523 | __ mov(scratch0, |
| 2524 | FieldOperand(scratch0, SharedFunctionInfo::kFunctionDataOffset)); |
| 2525 | |
| 2526 | // Loop through the chain of inheriting function templates. |
| 2527 | Label function_template_loop; |
| 2528 | __ bind(&function_template_loop); |
| 2529 | |
| 2530 | // If the signatures match, we have a compatible receiver. |
| 2531 | __ cmp(scratch0, FieldOperand(function_template_info, |
| 2532 | FunctionTemplateInfo::kSignatureOffset)); |
| 2533 | __ j(equal, &receiver_check_passed, Label::kNear); |
| 2534 | |
| 2535 | // If the current type is not a FunctionTemplateInfo, load the next prototype |
| 2536 | // in the chain. |
| 2537 | __ JumpIfSmi(scratch0, &next_prototype, Label::kNear); |
| 2538 | __ CmpObjectType(scratch0, FUNCTION_TEMPLATE_INFO_TYPE, scratch1); |
| 2539 | __ j(not_equal, &next_prototype, Label::kNear); |
| 2540 | |
| 2541 | // Otherwise load the parent function template and iterate. |
| 2542 | __ mov(scratch0, |
| 2543 | FieldOperand(scratch0, FunctionTemplateInfo::kParentTemplateOffset)); |
| 2544 | __ jmp(&function_template_loop, Label::kNear); |
| 2545 | |
| 2546 | // Load the next prototype. |
| 2547 | __ bind(&next_prototype); |
| 2548 | __ mov(receiver, FieldOperand(receiver, HeapObject::kMapOffset)); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2549 | __ test(FieldOperand(receiver, Map::kBitField3Offset), |
| 2550 | Immediate(Map::HasHiddenPrototype::kMask)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2551 | __ j(zero, receiver_check_failed); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2552 | |
| 2553 | __ mov(receiver, FieldOperand(receiver, Map::kPrototypeOffset)); |
| 2554 | __ mov(scratch0, FieldOperand(receiver, HeapObject::kMapOffset)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2555 | // Iterate. |
| 2556 | __ jmp(&prototype_loop_start, Label::kNear); |
| 2557 | |
| 2558 | __ bind(&receiver_check_passed); |
| 2559 | } |
| 2560 | |
| 2561 | |
| 2562 | void Builtins::Generate_HandleFastApiCall(MacroAssembler* masm) { |
| 2563 | // ----------- S t a t e ------------- |
| 2564 | // -- eax : number of arguments (not including the receiver) |
| 2565 | // -- edi : callee |
| 2566 | // -- esi : context |
| 2567 | // -- esp[0] : return address |
| 2568 | // -- esp[4] : last argument |
| 2569 | // -- ... |
| 2570 | // -- esp[eax * 4] : first argument |
| 2571 | // -- esp[(eax + 1) * 4] : receiver |
| 2572 | // ----------------------------------- |
| 2573 | |
| 2574 | // Load the FunctionTemplateInfo. |
| 2575 | __ mov(ebx, FieldOperand(edi, JSFunction::kSharedFunctionInfoOffset)); |
| 2576 | __ mov(ebx, FieldOperand(ebx, SharedFunctionInfo::kFunctionDataOffset)); |
| 2577 | |
| 2578 | // Do the compatible receiver check. |
| 2579 | Label receiver_check_failed; |
| 2580 | __ mov(ecx, Operand(esp, eax, times_pointer_size, kPCOnStackSize)); |
| 2581 | __ Push(eax); |
| 2582 | CompatibleReceiverCheck(masm, ecx, ebx, edx, eax, &receiver_check_failed); |
| 2583 | __ Pop(eax); |
| 2584 | // Get the callback offset from the FunctionTemplateInfo, and jump to the |
| 2585 | // beginning of the code. |
| 2586 | __ mov(edx, FieldOperand(ebx, FunctionTemplateInfo::kCallCodeOffset)); |
| 2587 | __ mov(edx, FieldOperand(edx, CallHandlerInfo::kFastHandlerOffset)); |
| 2588 | __ add(edx, Immediate(Code::kHeaderSize - kHeapObjectTag)); |
| 2589 | __ jmp(edx); |
| 2590 | |
| 2591 | // Compatible receiver check failed: pop return address, arguments and |
| 2592 | // receiver and throw an Illegal Invocation exception. |
| 2593 | __ bind(&receiver_check_failed); |
| 2594 | __ Pop(eax); |
| 2595 | __ PopReturnAddressTo(ebx); |
| 2596 | __ lea(eax, Operand(eax, times_pointer_size, 1 * kPointerSize)); |
| 2597 | __ add(esp, eax); |
| 2598 | __ PushReturnAddressFrom(ebx); |
| 2599 | { |
| 2600 | FrameScope scope(masm, StackFrame::INTERNAL); |
| 2601 | __ TailCallRuntime(Runtime::kThrowIllegalInvocation); |
| 2602 | } |
| 2603 | } |
| 2604 | |
| 2605 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2606 | void Builtins::Generate_OnStackReplacement(MacroAssembler* masm) { |
| 2607 | // Lookup the function in the JavaScript frame. |
| 2608 | __ mov(eax, Operand(ebp, JavaScriptFrameConstants::kFunctionOffset)); |
| 2609 | { |
| 2610 | FrameScope scope(masm, StackFrame::INTERNAL); |
| 2611 | // Pass function as argument. |
| 2612 | __ push(eax); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2613 | __ CallRuntime(Runtime::kCompileForOnStackReplacement); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2614 | } |
| 2615 | |
| 2616 | Label skip; |
| 2617 | // If the code object is null, just return to the unoptimized code. |
| 2618 | __ cmp(eax, Immediate(0)); |
| 2619 | __ j(not_equal, &skip, Label::kNear); |
| 2620 | __ ret(0); |
| 2621 | |
| 2622 | __ bind(&skip); |
| 2623 | |
| 2624 | // Load deoptimization data from the code object. |
| 2625 | __ mov(ebx, Operand(eax, Code::kDeoptimizationDataOffset - kHeapObjectTag)); |
| 2626 | |
| 2627 | // Load the OSR entrypoint offset from the deoptimization data. |
| 2628 | __ mov(ebx, Operand(ebx, FixedArray::OffsetOfElementAt( |
| 2629 | DeoptimizationInputData::kOsrPcOffsetIndex) - kHeapObjectTag)); |
| 2630 | __ SmiUntag(ebx); |
| 2631 | |
| 2632 | // Compute the target address = code_obj + header_size + osr_offset |
| 2633 | __ lea(eax, Operand(eax, ebx, times_1, Code::kHeaderSize - kHeapObjectTag)); |
| 2634 | |
| 2635 | // Overwrite the return address on the stack. |
| 2636 | __ mov(Operand(esp, 0), eax); |
| 2637 | |
| 2638 | // And "return" to the OSR entry point of the function. |
| 2639 | __ ret(0); |
| 2640 | } |
| 2641 | |
| 2642 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2643 | #undef __ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2644 | } // namespace internal |
| 2645 | } // namespace v8 |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2646 | |
| 2647 | #endif // V8_TARGET_ARCH_X87 |