Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1 | // Copyright 2012 the V8 project authors. All rights reserved. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2 | // Use of this source code is governed by a BSD-style license that can be |
| 3 | // found in the LICENSE file. |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5 | #if V8_TARGET_ARCH_X64 |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 6 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7 | #include "src/code-factory.h" |
| 8 | #include "src/codegen.h" |
| 9 | #include "src/deoptimizer.h" |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 10 | #include "src/full-codegen/full-codegen.h" |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 11 | |
| 12 | namespace v8 { |
| 13 | namespace internal { |
| 14 | |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 15 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 16 | #define __ ACCESS_MASM(masm) |
| 17 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 18 | |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 19 | void Builtins::Generate_Adaptor(MacroAssembler* masm, |
| 20 | CFunctionId id, |
| 21 | BuiltinExtraArguments extra_args) { |
| 22 | // ----------- S t a t e ------------- |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 23 | // -- rax : number of arguments excluding receiver |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 24 | // -- rdi : target |
| 25 | // -- rdx : new.target |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 26 | // -- rsp[0] : return address |
| 27 | // -- rsp[8] : last argument |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 28 | // -- ... |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 29 | // -- rsp[8 * argc] : first argument |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 30 | // -- rsp[8 * (argc + 1)] : receiver |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 31 | // ----------------------------------- |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 32 | __ AssertFunction(rdi); |
| 33 | |
| 34 | // Make sure we operate in the context of the called function (for example |
| 35 | // ConstructStubs implemented in C++ will be run in the context of the caller |
| 36 | // instead of the callee, due to the way that [[Construct]] is defined for |
| 37 | // ordinary functions). |
| 38 | __ movp(rsi, FieldOperand(rdi, JSFunction::kContextOffset)); |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 39 | |
| 40 | // Insert extra arguments. |
| 41 | int num_extra_args = 0; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 42 | if (extra_args != BuiltinExtraArguments::kNone) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 43 | __ PopReturnAddressTo(kScratchRegister); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 44 | if (extra_args & BuiltinExtraArguments::kTarget) { |
| 45 | ++num_extra_args; |
| 46 | __ Push(rdi); |
| 47 | } |
| 48 | if (extra_args & BuiltinExtraArguments::kNewTarget) { |
| 49 | ++num_extra_args; |
| 50 | __ Push(rdx); |
| 51 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 52 | __ PushReturnAddressFrom(kScratchRegister); |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 53 | } |
| 54 | |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 55 | // JumpToExternalReference expects rax to contain the number of arguments |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 56 | // including the receiver and the extra arguments. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 57 | __ addp(rax, Immediate(num_extra_args + 1)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 58 | |
| 59 | __ JumpToExternalReference(ExternalReference(id, masm->isolate())); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 60 | } |
| 61 | |
| 62 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 63 | static void CallRuntimePassFunction( |
| 64 | MacroAssembler* masm, Runtime::FunctionId function_id) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 65 | // ----------- S t a t e ------------- |
| 66 | // -- rdx : new target (preserved for callee) |
| 67 | // -- rdi : target function (preserved for callee) |
| 68 | // ----------------------------------- |
| 69 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 70 | FrameScope scope(masm, StackFrame::INTERNAL); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 71 | // Push a copy of the target function and the new target. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 72 | __ Push(rdi); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 73 | __ Push(rdx); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 74 | // Function is also the parameter to the runtime call. |
| 75 | __ Push(rdi); |
| 76 | |
| 77 | __ CallRuntime(function_id, 1); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 78 | // Restore target function and new target. |
| 79 | __ Pop(rdx); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 80 | __ Pop(rdi); |
| 81 | } |
| 82 | |
| 83 | |
| 84 | static void GenerateTailCallToSharedCode(MacroAssembler* masm) { |
| 85 | __ movp(kScratchRegister, |
| 86 | FieldOperand(rdi, JSFunction::kSharedFunctionInfoOffset)); |
| 87 | __ movp(kScratchRegister, |
| 88 | FieldOperand(kScratchRegister, SharedFunctionInfo::kCodeOffset)); |
| 89 | __ leap(kScratchRegister, FieldOperand(kScratchRegister, Code::kHeaderSize)); |
| 90 | __ jmp(kScratchRegister); |
| 91 | } |
| 92 | |
| 93 | |
| 94 | static void GenerateTailCallToReturnedCode(MacroAssembler* masm) { |
| 95 | __ leap(rax, FieldOperand(rax, Code::kHeaderSize)); |
| 96 | __ jmp(rax); |
| 97 | } |
| 98 | |
| 99 | |
| 100 | void Builtins::Generate_InOptimizationQueue(MacroAssembler* masm) { |
| 101 | // Checking whether the queued function is ready for install is optional, |
| 102 | // since we come across interrupts and stack checks elsewhere. However, |
| 103 | // not checking may delay installing ready functions, and always checking |
| 104 | // would be quite expensive. A good compromise is to first check against |
| 105 | // stack limit as a cue for an interrupt signal. |
| 106 | Label ok; |
| 107 | __ CompareRoot(rsp, Heap::kStackLimitRootIndex); |
| 108 | __ j(above_equal, &ok); |
| 109 | |
| 110 | CallRuntimePassFunction(masm, Runtime::kTryInstallOptimizedCode); |
| 111 | GenerateTailCallToReturnedCode(masm); |
| 112 | |
| 113 | __ bind(&ok); |
| 114 | GenerateTailCallToSharedCode(masm); |
| 115 | } |
| 116 | |
| 117 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 118 | static void Generate_JSConstructStubHelper(MacroAssembler* masm, |
| 119 | bool is_api_function, |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 120 | bool create_implicit_receiver) { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 121 | // ----------- S t a t e ------------- |
| 122 | // -- rax: number of arguments |
| 123 | // -- rdi: constructor function |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 124 | // -- rbx: allocation site or undefined |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 125 | // -- rdx: new target |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 126 | // ----------------------------------- |
| 127 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 128 | // Enter a construct frame. |
| 129 | { |
| 130 | FrameScope scope(masm, StackFrame::CONSTRUCT); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 131 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 132 | // Preserve the incoming parameters on the stack. |
| 133 | __ AssertUndefinedOrAllocationSite(rbx); |
| 134 | __ Push(rbx); |
| 135 | __ Integer32ToSmi(rcx, rax); |
| 136 | __ Push(rcx); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 137 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 138 | if (create_implicit_receiver) { |
| 139 | // Try to allocate the object without transitioning into C code. If any of |
| 140 | // the preconditions is not met, the code bails out to the runtime call. |
| 141 | Label rt_call, allocated; |
| 142 | if (FLAG_inline_new) { |
| 143 | // Verify that the new target is a JSFunction. |
| 144 | __ CmpObjectType(rdx, JS_FUNCTION_TYPE, rbx); |
| 145 | __ j(not_equal, &rt_call); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 146 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 147 | // Load the initial map and verify that it is in fact a map. |
| 148 | // rdx: new target |
| 149 | __ movp(rax, |
| 150 | FieldOperand(rdx, JSFunction::kPrototypeOrInitialMapOffset)); |
| 151 | // Will both indicate a NULL and a Smi |
| 152 | DCHECK(kSmiTag == 0); |
| 153 | __ JumpIfSmi(rax, &rt_call); |
| 154 | // rdi: constructor |
| 155 | // rax: initial map (if proven valid below) |
| 156 | __ CmpObjectType(rax, MAP_TYPE, rbx); |
| 157 | __ j(not_equal, &rt_call); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 158 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 159 | // Fall back to runtime if the expected base constructor and base |
| 160 | // constructor differ. |
| 161 | __ cmpp(rdi, FieldOperand(rax, Map::kConstructorOrBackPointerOffset)); |
| 162 | __ j(not_equal, &rt_call); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 163 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 164 | // Now allocate the JSObject on the heap. |
| 165 | __ movzxbp(r9, FieldOperand(rax, Map::kInstanceSizeOffset)); |
| 166 | __ shlp(r9, Immediate(kPointerSizeLog2)); |
| 167 | // r9: size of new object |
| 168 | __ Allocate(r9, rbx, r9, no_reg, &rt_call, NO_ALLOCATION_FLAGS); |
| 169 | // Allocated the JSObject, now initialize the fields. |
| 170 | // rdi: constructor |
| 171 | // rdx: new target |
| 172 | // rax: initial map |
| 173 | // rbx: JSObject (not HeapObject tagged - the actual address). |
| 174 | // r9: start of next object |
| 175 | __ movp(Operand(rbx, JSObject::kMapOffset), rax); |
| 176 | __ LoadRoot(rcx, Heap::kEmptyFixedArrayRootIndex); |
| 177 | __ movp(Operand(rbx, JSObject::kPropertiesOffset), rcx); |
| 178 | __ movp(Operand(rbx, JSObject::kElementsOffset), rcx); |
| 179 | __ leap(rcx, Operand(rbx, JSObject::kHeaderSize)); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 180 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 181 | // Add the object tag to make the JSObject real, so that we can continue |
| 182 | // and jump into the continuation code at any time from now on. |
| 183 | __ orp(rbx, Immediate(kHeapObjectTag)); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 184 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 185 | // Fill all the in-object properties with the appropriate filler. |
| 186 | // rbx: JSObject (tagged) |
| 187 | // rcx: First in-object property of JSObject (not tagged) |
| 188 | __ LoadRoot(r11, Heap::kUndefinedValueRootIndex); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 189 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 190 | if (!is_api_function) { |
| 191 | Label no_inobject_slack_tracking; |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 192 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 193 | // The code below relies on these assumptions. |
| 194 | STATIC_ASSERT(Map::kNoSlackTracking == 0); |
| 195 | STATIC_ASSERT(Map::ConstructionCounter::kNext == 32); |
| 196 | // Check if slack tracking is enabled. |
| 197 | __ movl(rsi, FieldOperand(rax, Map::kBitField3Offset)); |
| 198 | __ shrl(rsi, Immediate(Map::ConstructionCounter::kShift)); |
| 199 | __ j(zero, &no_inobject_slack_tracking); // Map::kNoSlackTracking |
| 200 | __ Push(rsi); // Save allocation count value. |
| 201 | // Decrease generous allocation count. |
| 202 | __ subl(FieldOperand(rax, Map::kBitField3Offset), |
| 203 | Immediate(1 << Map::ConstructionCounter::kShift)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 204 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 205 | // Allocate object with a slack. |
| 206 | __ movzxbp(rsi, FieldOperand(rax, Map::kUnusedPropertyFieldsOffset)); |
| 207 | __ negp(rsi); |
| 208 | __ leap(rsi, Operand(r9, rsi, times_pointer_size, 0)); |
| 209 | // rsi: offset of first field after pre-allocated fields |
| 210 | if (FLAG_debug_code) { |
| 211 | __ cmpp(rcx, rsi); |
| 212 | __ Assert(less_equal, |
| 213 | kUnexpectedNumberOfPreAllocatedPropertyFields); |
| 214 | } |
| 215 | __ InitializeFieldsWithFiller(rcx, rsi, r11); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 216 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 217 | // To allow truncation fill the remaining fields with one pointer |
| 218 | // filler map. |
| 219 | __ LoadRoot(r11, Heap::kOnePointerFillerMapRootIndex); |
| 220 | __ InitializeFieldsWithFiller(rcx, r9, r11); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 221 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 222 | __ Pop(rsi); // Restore allocation count value before decreasing. |
| 223 | __ cmpl(rsi, Immediate(Map::kSlackTrackingCounterEnd)); |
| 224 | __ j(not_equal, &allocated); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 225 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 226 | // Push the constructor, new_target and the object to the stack, |
| 227 | // and then the initial map as an argument to the runtime call. |
| 228 | __ Push(rdi); |
| 229 | __ Push(rdx); |
| 230 | __ Push(rbx); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 231 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 232 | __ Push(rax); // initial map |
| 233 | __ CallRuntime(Runtime::kFinalizeInstanceSize); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 234 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 235 | __ Pop(rbx); |
| 236 | __ Pop(rdx); |
| 237 | __ Pop(rdi); |
| 238 | |
| 239 | // Continue with JSObject being successfully allocated. |
| 240 | // rdi: constructor |
| 241 | // rdx: new target |
| 242 | // rbx: JSObject (tagged) |
| 243 | __ jmp(&allocated); |
| 244 | |
| 245 | __ bind(&no_inobject_slack_tracking); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 246 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 247 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 248 | __ InitializeFieldsWithFiller(rcx, r9, r11); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 249 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 250 | // Continue with JSObject being successfully allocated |
| 251 | // rdi: constructor |
| 252 | // rdx: new target |
| 253 | // rbx: JSObject (tagged) |
| 254 | __ jmp(&allocated); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 255 | } |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 256 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 257 | // Allocate the new receiver object using the runtime call. |
| 258 | // rdi: constructor |
| 259 | // rdx: new target |
| 260 | __ bind(&rt_call); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 261 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 262 | // Must restore rsi (context) before calling runtime. |
| 263 | __ movp(rsi, Operand(rbp, StandardFrameConstants::kContextOffset)); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 264 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 265 | // Push the constructor and new_target twice, second pair as arguments |
| 266 | // to the runtime call. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 267 | __ Push(rdi); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 268 | __ Push(rdx); |
| 269 | __ Push(rdi); // constructor function |
| 270 | __ Push(rdx); // new target |
| 271 | __ CallRuntime(Runtime::kNewObject); |
| 272 | __ movp(rbx, rax); // store result in rbx |
| 273 | __ Pop(rdx); |
| 274 | __ Pop(rdi); |
| 275 | |
| 276 | // Receiver for constructor call allocated. |
| 277 | // rdi: constructor |
| 278 | // rdx: new target |
| 279 | // rbx: newly allocated object |
| 280 | __ bind(&allocated); |
| 281 | |
| 282 | // Retrieve smi-tagged arguments count from the stack. |
| 283 | __ movp(rax, Operand(rsp, 0)); |
| 284 | __ SmiToInteger32(rax, rax); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 285 | } |
| 286 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 287 | if (create_implicit_receiver) { |
| 288 | // Push the allocated receiver to the stack. We need two copies |
| 289 | // because we may have to return the original one and the calling |
| 290 | // conventions dictate that the called function pops the receiver. |
| 291 | __ Push(rbx); |
| 292 | __ Push(rbx); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 293 | } else { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 294 | __ PushRoot(Heap::kTheHoleValueRootIndex); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 295 | } |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 296 | |
| 297 | // Set up pointer to last argument. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 298 | __ leap(rbx, Operand(rbp, StandardFrameConstants::kCallerSPOffset)); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 299 | |
| 300 | // Copy arguments and receiver to the expression stack. |
| 301 | Label loop, entry; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 302 | __ movp(rcx, rax); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 303 | __ jmp(&entry); |
| 304 | __ bind(&loop); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 305 | __ Push(Operand(rbx, rcx, times_pointer_size, 0)); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 306 | __ bind(&entry); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 307 | __ decp(rcx); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 308 | __ j(greater_equal, &loop); |
| 309 | |
| 310 | // Call the function. |
| 311 | if (is_api_function) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 312 | __ movp(rsi, FieldOperand(rdi, JSFunction::kContextOffset)); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 313 | Handle<Code> code = |
| 314 | masm->isolate()->builtins()->HandleApiCallConstruct(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 315 | __ Call(code, RelocInfo::CODE_TARGET); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 316 | } else { |
| 317 | ParameterCount actual(rax); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 318 | __ InvokeFunction(rdi, rdx, actual, CALL_FUNCTION, |
| 319 | CheckDebugStepCallWrapper()); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 320 | } |
| 321 | |
| 322 | // Store offset of return address for deoptimizer. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 323 | if (create_implicit_receiver && !is_api_function) { |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 324 | masm->isolate()->heap()->SetConstructStubDeoptPCOffset(masm->pc_offset()); |
| 325 | } |
| 326 | |
| 327 | // Restore context from the frame. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 328 | __ movp(rsi, Operand(rbp, StandardFrameConstants::kContextOffset)); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 329 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 330 | if (create_implicit_receiver) { |
| 331 | // If the result is an object (in the ECMA sense), we should get rid |
| 332 | // of the receiver and use the result; see ECMA-262 section 13.2.2-7 |
| 333 | // on page 74. |
| 334 | Label use_receiver, exit; |
| 335 | // If the result is a smi, it is *not* an object in the ECMA sense. |
| 336 | __ JumpIfSmi(rax, &use_receiver); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 337 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 338 | // If the type of the result (stored in its map) is less than |
| 339 | // FIRST_JS_RECEIVER_TYPE, it is not an object in the ECMA sense. |
| 340 | STATIC_ASSERT(LAST_JS_RECEIVER_TYPE == LAST_TYPE); |
| 341 | __ CmpObjectType(rax, FIRST_JS_RECEIVER_TYPE, rcx); |
| 342 | __ j(above_equal, &exit); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 343 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 344 | // Throw away the result of the constructor invocation and use the |
| 345 | // on-stack receiver as the result. |
| 346 | __ bind(&use_receiver); |
| 347 | __ movp(rax, Operand(rsp, 0)); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 348 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 349 | // Restore the arguments count and leave the construct frame. The |
| 350 | // arguments count is stored below the receiver. |
| 351 | __ bind(&exit); |
| 352 | __ movp(rbx, Operand(rsp, 1 * kPointerSize)); |
| 353 | } else { |
| 354 | __ movp(rbx, Operand(rsp, 0)); |
| 355 | } |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 356 | |
| 357 | // Leave construct frame. |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 358 | } |
| 359 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 360 | // Remove caller arguments from the stack and return. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 361 | __ PopReturnAddressTo(rcx); |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 362 | SmiIndex index = masm->SmiToIndex(rbx, rbx, kPointerSizeLog2); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 363 | __ leap(rsp, Operand(rsp, index.reg, index.scale, 1 * kPointerSize)); |
| 364 | __ PushReturnAddressFrom(rcx); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 365 | if (create_implicit_receiver) { |
| 366 | Counters* counters = masm->isolate()->counters(); |
| 367 | __ IncrementCounter(counters->constructed_objects(), 1); |
| 368 | } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 369 | __ ret(0); |
| 370 | } |
| 371 | |
| 372 | |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 373 | void Builtins::Generate_JSConstructStubGeneric(MacroAssembler* masm) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 374 | Generate_JSConstructStubHelper(masm, false, true); |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 375 | } |
| 376 | |
| 377 | |
| 378 | void Builtins::Generate_JSConstructStubApi(MacroAssembler* masm) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 379 | Generate_JSConstructStubHelper(masm, true, true); |
| 380 | } |
| 381 | |
| 382 | |
| 383 | void Builtins::Generate_JSBuiltinsConstructStub(MacroAssembler* masm) { |
| 384 | Generate_JSConstructStubHelper(masm, false, false); |
| 385 | } |
| 386 | |
| 387 | |
| 388 | void Builtins::Generate_ConstructedNonConstructable(MacroAssembler* masm) { |
| 389 | FrameScope scope(masm, StackFrame::INTERNAL); |
| 390 | __ Push(rdi); |
| 391 | __ CallRuntime(Runtime::kThrowConstructedNonConstructable); |
| 392 | } |
| 393 | |
| 394 | |
| 395 | enum IsTagged { kRaxIsSmiTagged, kRaxIsUntaggedInt }; |
| 396 | |
| 397 | |
| 398 | // Clobbers rcx, r11, kScratchRegister; preserves all other registers. |
| 399 | static void Generate_CheckStackOverflow(MacroAssembler* masm, |
| 400 | IsTagged rax_is_tagged) { |
| 401 | // rax : the number of items to be pushed to the stack |
| 402 | // |
| 403 | // Check the stack for overflow. We are not trying to catch |
| 404 | // interruptions (e.g. debug break and preemption) here, so the "real stack |
| 405 | // limit" is checked. |
| 406 | Label okay; |
| 407 | __ LoadRoot(kScratchRegister, Heap::kRealStackLimitRootIndex); |
| 408 | __ movp(rcx, rsp); |
| 409 | // Make rcx the space we have left. The stack might already be overflowed |
| 410 | // here which will cause rcx to become negative. |
| 411 | __ subp(rcx, kScratchRegister); |
| 412 | // Make r11 the space we need for the array when it is unrolled onto the |
| 413 | // stack. |
| 414 | if (rax_is_tagged == kRaxIsSmiTagged) { |
| 415 | __ PositiveSmiTimesPowerOfTwoToInteger64(r11, rax, kPointerSizeLog2); |
| 416 | } else { |
| 417 | DCHECK(rax_is_tagged == kRaxIsUntaggedInt); |
| 418 | __ movp(r11, rax); |
| 419 | __ shlq(r11, Immediate(kPointerSizeLog2)); |
| 420 | } |
| 421 | // Check if the arguments will overflow the stack. |
| 422 | __ cmpp(rcx, r11); |
| 423 | __ j(greater, &okay); // Signed comparison. |
| 424 | |
| 425 | // Out of stack space. |
| 426 | __ CallRuntime(Runtime::kThrowStackOverflow); |
| 427 | |
| 428 | __ bind(&okay); |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 429 | } |
| 430 | |
| 431 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 432 | static void Generate_JSEntryTrampolineHelper(MacroAssembler* masm, |
| 433 | bool is_construct) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 434 | ProfileEntryHookStub::MaybeCallEntryHook(masm); |
| 435 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 436 | // Expects five C++ function parameters. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 437 | // - Object* new_target |
| 438 | // - JSFunction* function |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 439 | // - Object* receiver |
| 440 | // - int argc |
| 441 | // - Object*** argv |
| 442 | // (see Handle::Invoke in execution.cc). |
| 443 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 444 | // Open a C++ scope for the FrameScope. |
| 445 | { |
| 446 | // Platform specific argument handling. After this, the stack contains |
| 447 | // an internal frame and the pushed function and receiver, and |
| 448 | // register rax and rbx holds the argument count and argument array, |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 449 | // while rdi holds the function pointer, rsi the context, and rdx the |
| 450 | // new.target. |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 451 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 452 | #ifdef _WIN64 |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 453 | // MSVC parameters in: |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 454 | // rcx : new_target |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 455 | // rdx : function |
| 456 | // r8 : receiver |
| 457 | // r9 : argc |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 458 | // [rsp+0x20] : argv |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 459 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 460 | // Clear the context before we push it when entering the internal frame. |
| 461 | __ Set(rsi, 0); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 462 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 463 | // Enter an internal frame. |
| 464 | FrameScope scope(masm, StackFrame::INTERNAL); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 465 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 466 | // Setup the context (we need to use the caller context from the isolate). |
| 467 | ExternalReference context_address(Isolate::kContextAddress, |
| 468 | masm->isolate()); |
| 469 | __ movp(rsi, masm->ExternalOperand(context_address)); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 470 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 471 | // Push the function and the receiver onto the stack. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 472 | __ Push(rdx); |
| 473 | __ Push(r8); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 474 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 475 | // Load the number of arguments and setup pointer to the arguments. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 476 | __ movp(rax, r9); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 477 | // Load the previous frame pointer to access C argument on stack |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 478 | __ movp(kScratchRegister, Operand(rbp, 0)); |
| 479 | __ movp(rbx, Operand(kScratchRegister, EntryFrameConstants::kArgvOffset)); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 480 | // Load the function pointer into rdi. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 481 | __ movp(rdi, rdx); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 482 | // Load the new.target into rdx. |
| 483 | __ movp(rdx, rcx); |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 484 | #else // _WIN64 |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 485 | // GCC parameters in: |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 486 | // rdi : new_target |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 487 | // rsi : function |
| 488 | // rdx : receiver |
| 489 | // rcx : argc |
| 490 | // r8 : argv |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 491 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 492 | __ movp(r11, rdi); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 493 | __ movp(rdi, rsi); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 494 | // rdi : function |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 495 | // r11 : new_target |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 496 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 497 | // Clear the context before we push it when entering the internal frame. |
| 498 | __ Set(rsi, 0); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 499 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 500 | // Enter an internal frame. |
| 501 | FrameScope scope(masm, StackFrame::INTERNAL); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 502 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 503 | // Setup the context (we need to use the caller context from the isolate). |
| 504 | ExternalReference context_address(Isolate::kContextAddress, |
| 505 | masm->isolate()); |
| 506 | __ movp(rsi, masm->ExternalOperand(context_address)); |
| 507 | |
| 508 | // Push the function and receiver onto the stack. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 509 | __ Push(rdi); |
| 510 | __ Push(rdx); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 511 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 512 | // Load the number of arguments and setup pointer to the arguments. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 513 | __ movp(rax, rcx); |
| 514 | __ movp(rbx, r8); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 515 | |
| 516 | // Load the new.target into rdx. |
| 517 | __ movp(rdx, r11); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 518 | #endif // _WIN64 |
| 519 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 520 | // Current stack contents: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 521 | // [rsp + 2 * kPointerSize ... ] : Internal frame |
| 522 | // [rsp + kPointerSize] : function |
| 523 | // [rsp] : receiver |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 524 | // Current register contents: |
| 525 | // rax : argc |
| 526 | // rbx : argv |
| 527 | // rsi : context |
| 528 | // rdi : function |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 529 | // rdx : new.target |
| 530 | |
| 531 | // Check if we have enough stack space to push all arguments. |
| 532 | // Expects argument count in rax. Clobbers rcx, r11. |
| 533 | Generate_CheckStackOverflow(masm, kRaxIsUntaggedInt); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 534 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 535 | // Copy arguments to the stack in a loop. |
| 536 | // Register rbx points to array of pointers to handle locations. |
| 537 | // Push the values of these handles. |
| 538 | Label loop, entry; |
| 539 | __ Set(rcx, 0); // Set loop variable to 0. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 540 | __ jmp(&entry, Label::kNear); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 541 | __ bind(&loop); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 542 | __ movp(kScratchRegister, Operand(rbx, rcx, times_pointer_size, 0)); |
| 543 | __ Push(Operand(kScratchRegister, 0)); // dereference handle |
| 544 | __ addp(rcx, Immediate(1)); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 545 | __ bind(&entry); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 546 | __ cmpp(rcx, rax); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 547 | __ j(not_equal, &loop); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 548 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 549 | // Invoke the builtin code. |
| 550 | Handle<Code> builtin = is_construct |
| 551 | ? masm->isolate()->builtins()->Construct() |
| 552 | : masm->isolate()->builtins()->Call(); |
| 553 | __ Call(builtin, RelocInfo::CODE_TARGET); |
| 554 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 555 | // Exit the internal frame. Notice that this also removes the empty |
| 556 | // context and the function left on the stack by the code |
| 557 | // invocation. |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 558 | } |
| 559 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 560 | // TODO(X64): Is argument correct? Is there a receiver to remove? |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 561 | __ ret(1 * kPointerSize); // Remove receiver. |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 562 | } |
| 563 | |
| 564 | |
| 565 | void Builtins::Generate_JSEntryTrampoline(MacroAssembler* masm) { |
| 566 | Generate_JSEntryTrampolineHelper(masm, false); |
| 567 | } |
| 568 | |
| 569 | |
| 570 | void Builtins::Generate_JSConstructEntryTrampoline(MacroAssembler* masm) { |
| 571 | Generate_JSEntryTrampolineHelper(masm, true); |
| 572 | } |
| 573 | |
Iain Merrick | 7568138 | 2010-08-19 15:07:18 +0100 | [diff] [blame] | 574 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 575 | // Generate code for entering a JS function with the interpreter. |
| 576 | // On entry to the function the receiver and arguments have been pushed on the |
| 577 | // stack left to right. The actual argument count matches the formal parameter |
| 578 | // count expected by the function. |
| 579 | // |
| 580 | // The live registers are: |
| 581 | // o rdi: the JS function object being called |
| 582 | // o rdx: the new target |
| 583 | // o rsi: our context |
| 584 | // o rbp: the caller's frame pointer |
| 585 | // o rsp: stack pointer (pointing to return address) |
| 586 | // |
| 587 | // The function builds a JS frame. Please see JavaScriptFrameConstants in |
| 588 | // frames-x64.h for its layout. |
| 589 | // TODO(rmcilroy): We will need to include the current bytecode pointer in the |
| 590 | // frame. |
| 591 | void Builtins::Generate_InterpreterEntryTrampoline(MacroAssembler* masm) { |
| 592 | // Open a frame scope to indicate that there is a frame on the stack. The |
| 593 | // MANUAL indicates that the scope shouldn't actually generate code to set up |
| 594 | // the frame (that is done below). |
| 595 | FrameScope frame_scope(masm, StackFrame::MANUAL); |
| 596 | __ pushq(rbp); // Caller's frame pointer. |
| 597 | __ movp(rbp, rsp); |
| 598 | __ Push(rsi); // Callee's context. |
| 599 | __ Push(rdi); // Callee's JS function. |
| 600 | __ Push(rdx); // Callee's new target. |
| 601 | |
| 602 | // Push zero for bytecode array offset. |
| 603 | __ Push(Immediate(0)); |
| 604 | |
| 605 | // Get the bytecode array from the function object and load the pointer to the |
| 606 | // first entry into edi (InterpreterBytecodeRegister). |
| 607 | __ movp(rax, FieldOperand(rdi, JSFunction::kSharedFunctionInfoOffset)); |
| 608 | __ movp(kInterpreterBytecodeArrayRegister, |
| 609 | FieldOperand(rax, SharedFunctionInfo::kFunctionDataOffset)); |
| 610 | |
| 611 | if (FLAG_debug_code) { |
| 612 | // Check function data field is actually a BytecodeArray object. |
| 613 | __ AssertNotSmi(kInterpreterBytecodeArrayRegister); |
| 614 | __ CmpObjectType(kInterpreterBytecodeArrayRegister, BYTECODE_ARRAY_TYPE, |
| 615 | rax); |
| 616 | __ Assert(equal, kFunctionDataShouldBeBytecodeArrayOnInterpreterEntry); |
| 617 | } |
| 618 | |
| 619 | // Allocate the local and temporary register file on the stack. |
| 620 | { |
| 621 | // Load frame size from the BytecodeArray object. |
| 622 | __ movl(rcx, FieldOperand(kInterpreterBytecodeArrayRegister, |
| 623 | BytecodeArray::kFrameSizeOffset)); |
| 624 | |
| 625 | // Do a stack check to ensure we don't go over the limit. |
| 626 | Label ok; |
| 627 | __ movp(rdx, rsp); |
| 628 | __ subp(rdx, rcx); |
| 629 | __ CompareRoot(rdx, Heap::kRealStackLimitRootIndex); |
| 630 | __ j(above_equal, &ok, Label::kNear); |
| 631 | __ CallRuntime(Runtime::kThrowStackOverflow); |
| 632 | __ bind(&ok); |
| 633 | |
| 634 | // If ok, push undefined as the initial value for all register file entries. |
| 635 | Label loop_header; |
| 636 | Label loop_check; |
| 637 | __ LoadRoot(rdx, Heap::kUndefinedValueRootIndex); |
| 638 | __ j(always, &loop_check); |
| 639 | __ bind(&loop_header); |
| 640 | // TODO(rmcilroy): Consider doing more than one push per loop iteration. |
| 641 | __ Push(rdx); |
| 642 | // Continue loop if not done. |
| 643 | __ bind(&loop_check); |
| 644 | __ subp(rcx, Immediate(kPointerSize)); |
| 645 | __ j(greater_equal, &loop_header, Label::kNear); |
| 646 | } |
| 647 | |
| 648 | // TODO(rmcilroy): List of things not currently dealt with here but done in |
| 649 | // fullcodegen's prologue: |
| 650 | // - Support profiler (specifically profiling_counter). |
| 651 | // - Call ProfileEntryHookStub when isolate has a function_entry_hook. |
| 652 | // - Allow simulator stop operations if FLAG_stop_at is set. |
| 653 | // - Code aging of the BytecodeArray object. |
| 654 | |
| 655 | // Perform stack guard check. |
| 656 | { |
| 657 | Label ok; |
| 658 | __ CompareRoot(rsp, Heap::kStackLimitRootIndex); |
| 659 | __ j(above_equal, &ok, Label::kNear); |
| 660 | __ Push(kInterpreterBytecodeArrayRegister); |
| 661 | __ CallRuntime(Runtime::kStackGuard); |
| 662 | __ Pop(kInterpreterBytecodeArrayRegister); |
| 663 | __ bind(&ok); |
| 664 | } |
| 665 | |
| 666 | // Load accumulator, register file, bytecode offset, dispatch table into |
| 667 | // registers. |
| 668 | __ LoadRoot(kInterpreterAccumulatorRegister, Heap::kUndefinedValueRootIndex); |
| 669 | __ movp(kInterpreterRegisterFileRegister, rbp); |
| 670 | __ addp(kInterpreterRegisterFileRegister, |
| 671 | Immediate(InterpreterFrameConstants::kRegisterFilePointerFromFp)); |
| 672 | __ movp(kInterpreterBytecodeOffsetRegister, |
| 673 | Immediate(BytecodeArray::kHeaderSize - kHeapObjectTag)); |
| 674 | __ LoadRoot(kInterpreterDispatchTableRegister, |
| 675 | Heap::kInterpreterTableRootIndex); |
| 676 | __ addp(kInterpreterDispatchTableRegister, |
| 677 | Immediate(FixedArray::kHeaderSize - kHeapObjectTag)); |
| 678 | |
| 679 | // Dispatch to the first bytecode handler for the function. |
| 680 | __ movzxbp(rbx, Operand(kInterpreterBytecodeArrayRegister, |
| 681 | kInterpreterBytecodeOffsetRegister, times_1, 0)); |
| 682 | __ movp(rbx, Operand(kInterpreterDispatchTableRegister, rbx, |
| 683 | times_pointer_size, 0)); |
| 684 | // TODO(rmcilroy): Make dispatch table point to code entrys to avoid untagging |
| 685 | // and header removal. |
| 686 | __ addp(rbx, Immediate(Code::kHeaderSize - kHeapObjectTag)); |
| 687 | __ call(rbx); |
| 688 | } |
| 689 | |
| 690 | |
| 691 | void Builtins::Generate_InterpreterExitTrampoline(MacroAssembler* masm) { |
| 692 | // TODO(rmcilroy): List of things not currently dealt with here but done in |
| 693 | // fullcodegen's EmitReturnSequence. |
| 694 | // - Supporting FLAG_trace for Runtime::TraceExit. |
| 695 | // - Support profiler (specifically decrementing profiling_counter |
| 696 | // appropriately and calling out to HandleInterrupts if necessary). |
| 697 | |
| 698 | // The return value is in accumulator, which is already in rax. |
| 699 | |
| 700 | // Leave the frame (also dropping the register file). |
| 701 | __ leave(); |
| 702 | |
| 703 | // Drop receiver + arguments and return. |
| 704 | __ movl(rbx, FieldOperand(kInterpreterBytecodeArrayRegister, |
| 705 | BytecodeArray::kParameterSizeOffset)); |
| 706 | __ PopReturnAddressTo(rcx); |
| 707 | __ addp(rsp, rbx); |
| 708 | __ PushReturnAddressFrom(rcx); |
| 709 | __ ret(0); |
| 710 | } |
| 711 | |
| 712 | |
| 713 | static void Generate_InterpreterPushArgs(MacroAssembler* masm, |
| 714 | bool push_receiver) { |
| 715 | // ----------- S t a t e ------------- |
| 716 | // -- rax : the number of arguments (not including the receiver) |
| 717 | // -- rbx : the address of the first argument to be pushed. Subsequent |
| 718 | // arguments should be consecutive above this, in the same order as |
| 719 | // they are to be pushed onto the stack. |
| 720 | // ----------------------------------- |
| 721 | |
| 722 | // Find the address of the last argument. |
| 723 | __ movp(rcx, rax); |
| 724 | if (push_receiver) { |
| 725 | __ addp(rcx, Immediate(1)); // Add one for receiver. |
| 726 | } |
| 727 | |
| 728 | __ shlp(rcx, Immediate(kPointerSizeLog2)); |
| 729 | __ negp(rcx); |
| 730 | __ addp(rcx, rbx); |
| 731 | |
| 732 | // Push the arguments. |
| 733 | Label loop_header, loop_check; |
| 734 | __ j(always, &loop_check); |
| 735 | __ bind(&loop_header); |
| 736 | __ Push(Operand(rbx, 0)); |
| 737 | __ subp(rbx, Immediate(kPointerSize)); |
| 738 | __ bind(&loop_check); |
| 739 | __ cmpp(rbx, rcx); |
| 740 | __ j(greater, &loop_header, Label::kNear); |
| 741 | } |
| 742 | |
| 743 | |
| 744 | // static |
| 745 | void Builtins::Generate_InterpreterPushArgsAndCall(MacroAssembler* masm) { |
| 746 | // ----------- S t a t e ------------- |
| 747 | // -- rax : the number of arguments (not including the receiver) |
| 748 | // -- rbx : the address of the first argument to be pushed. Subsequent |
| 749 | // arguments should be consecutive above this, in the same order as |
| 750 | // they are to be pushed onto the stack. |
| 751 | // -- rdi : the target to call (can be any Object). |
| 752 | // ----------------------------------- |
| 753 | |
| 754 | // Pop return address to allow tail-call after pushing arguments. |
| 755 | __ PopReturnAddressTo(kScratchRegister); |
| 756 | |
| 757 | Generate_InterpreterPushArgs(masm, true); |
| 758 | |
| 759 | // Call the target. |
| 760 | __ PushReturnAddressFrom(kScratchRegister); // Re-push return address. |
| 761 | __ Jump(masm->isolate()->builtins()->Call(), RelocInfo::CODE_TARGET); |
| 762 | } |
| 763 | |
| 764 | |
| 765 | // static |
| 766 | void Builtins::Generate_InterpreterPushArgsAndConstruct(MacroAssembler* masm) { |
| 767 | // ----------- S t a t e ------------- |
| 768 | // -- rax : the number of arguments (not including the receiver) |
| 769 | // -- rdx : the new target (either the same as the constructor or |
| 770 | // the JSFunction on which new was invoked initially) |
| 771 | // -- rdi : the constructor to call (can be any Object) |
| 772 | // -- rbx : the address of the first argument to be pushed. Subsequent |
| 773 | // arguments should be consecutive above this, in the same order as |
| 774 | // they are to be pushed onto the stack. |
| 775 | // ----------------------------------- |
| 776 | |
| 777 | // Pop return address to allow tail-call after pushing arguments. |
| 778 | __ PopReturnAddressTo(kScratchRegister); |
| 779 | |
| 780 | // Push slot for the receiver to be constructed. |
| 781 | __ Push(Immediate(0)); |
| 782 | |
| 783 | Generate_InterpreterPushArgs(masm, false); |
| 784 | |
| 785 | // Push return address in preparation for the tail-call. |
| 786 | __ PushReturnAddressFrom(kScratchRegister); |
| 787 | |
| 788 | // Call the constructor (rax, rdx, rdi passed on). |
| 789 | __ Jump(masm->isolate()->builtins()->Construct(), RelocInfo::CODE_TARGET); |
| 790 | } |
| 791 | |
| 792 | |
| 793 | static void Generate_InterpreterNotifyDeoptimizedHelper( |
| 794 | MacroAssembler* masm, Deoptimizer::BailoutType type) { |
| 795 | // Enter an internal frame. |
| 796 | { |
| 797 | FrameScope scope(masm, StackFrame::INTERNAL); |
| 798 | __ Push(kInterpreterAccumulatorRegister); // Save accumulator register. |
| 799 | |
| 800 | // Pass the deoptimization type to the runtime system. |
| 801 | __ Push(Smi::FromInt(static_cast<int>(type))); |
| 802 | |
| 803 | __ CallRuntime(Runtime::kNotifyDeoptimized); |
| 804 | |
| 805 | __ Pop(kInterpreterAccumulatorRegister); // Restore accumulator register. |
| 806 | // Tear down internal frame. |
| 807 | } |
| 808 | |
| 809 | // Drop state (we don't use these for interpreter deopts) and push PC at top |
| 810 | // of stack (to simulate initial call to bytecode handler in interpreter entry |
| 811 | // trampoline). |
| 812 | __ Pop(rbx); |
| 813 | __ Drop(1); |
| 814 | __ Push(rbx); |
| 815 | |
| 816 | // Initialize register file register and dispatch table register. |
| 817 | __ movp(kInterpreterRegisterFileRegister, rbp); |
| 818 | __ addp(kInterpreterRegisterFileRegister, |
| 819 | Immediate(InterpreterFrameConstants::kRegisterFilePointerFromFp)); |
| 820 | __ LoadRoot(kInterpreterDispatchTableRegister, |
| 821 | Heap::kInterpreterTableRootIndex); |
| 822 | __ addp(kInterpreterDispatchTableRegister, |
| 823 | Immediate(FixedArray::kHeaderSize - kHeapObjectTag)); |
| 824 | |
| 825 | // Get the context from the frame. |
| 826 | // TODO(rmcilroy): Update interpreter frame to expect current context at the |
| 827 | // context slot instead of the function context. |
| 828 | __ movp(kContextRegister, |
| 829 | Operand(kInterpreterRegisterFileRegister, |
| 830 | InterpreterFrameConstants::kContextFromRegisterPointer)); |
| 831 | |
| 832 | // Get the bytecode array pointer from the frame. |
| 833 | __ movp(rbx, |
| 834 | Operand(kInterpreterRegisterFileRegister, |
| 835 | InterpreterFrameConstants::kFunctionFromRegisterPointer)); |
| 836 | __ movp(rbx, FieldOperand(rbx, JSFunction::kSharedFunctionInfoOffset)); |
| 837 | __ movp(kInterpreterBytecodeArrayRegister, |
| 838 | FieldOperand(rbx, SharedFunctionInfo::kFunctionDataOffset)); |
| 839 | |
| 840 | if (FLAG_debug_code) { |
| 841 | // Check function data field is actually a BytecodeArray object. |
| 842 | __ AssertNotSmi(kInterpreterBytecodeArrayRegister); |
| 843 | __ CmpObjectType(kInterpreterBytecodeArrayRegister, BYTECODE_ARRAY_TYPE, |
| 844 | rbx); |
| 845 | __ Assert(equal, kFunctionDataShouldBeBytecodeArrayOnInterpreterEntry); |
| 846 | } |
| 847 | |
| 848 | // Get the target bytecode offset from the frame. |
| 849 | __ movp( |
| 850 | kInterpreterBytecodeOffsetRegister, |
| 851 | Operand(kInterpreterRegisterFileRegister, |
| 852 | InterpreterFrameConstants::kBytecodeOffsetFromRegisterPointer)); |
| 853 | __ SmiToInteger32(kInterpreterBytecodeOffsetRegister, |
| 854 | kInterpreterBytecodeOffsetRegister); |
| 855 | |
| 856 | // Dispatch to the target bytecode. |
| 857 | __ movzxbp(rbx, Operand(kInterpreterBytecodeArrayRegister, |
| 858 | kInterpreterBytecodeOffsetRegister, times_1, 0)); |
| 859 | __ movp(rbx, Operand(kInterpreterDispatchTableRegister, rbx, |
| 860 | times_pointer_size, 0)); |
| 861 | __ addp(rbx, Immediate(Code::kHeaderSize - kHeapObjectTag)); |
| 862 | __ jmp(rbx); |
| 863 | } |
| 864 | |
| 865 | |
| 866 | void Builtins::Generate_InterpreterNotifyDeoptimized(MacroAssembler* masm) { |
| 867 | Generate_InterpreterNotifyDeoptimizedHelper(masm, Deoptimizer::EAGER); |
| 868 | } |
| 869 | |
| 870 | |
| 871 | void Builtins::Generate_InterpreterNotifySoftDeoptimized(MacroAssembler* masm) { |
| 872 | Generate_InterpreterNotifyDeoptimizedHelper(masm, Deoptimizer::SOFT); |
| 873 | } |
| 874 | |
| 875 | |
| 876 | void Builtins::Generate_InterpreterNotifyLazyDeoptimized(MacroAssembler* masm) { |
| 877 | Generate_InterpreterNotifyDeoptimizedHelper(masm, Deoptimizer::LAZY); |
| 878 | } |
| 879 | |
| 880 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 881 | void Builtins::Generate_CompileLazy(MacroAssembler* masm) { |
| 882 | CallRuntimePassFunction(masm, Runtime::kCompileLazy); |
| 883 | GenerateTailCallToReturnedCode(masm); |
Iain Merrick | 7568138 | 2010-08-19 15:07:18 +0100 | [diff] [blame] | 884 | } |
| 885 | |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 886 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 887 | void Builtins::Generate_CompileOptimized(MacroAssembler* masm) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 888 | CallRuntimePassFunction(masm, Runtime::kCompileOptimized_NotConcurrent); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 889 | GenerateTailCallToReturnedCode(masm); |
| 890 | } |
| 891 | |
| 892 | |
| 893 | void Builtins::Generate_CompileOptimizedConcurrent(MacroAssembler* masm) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 894 | CallRuntimePassFunction(masm, Runtime::kCompileOptimized_Concurrent); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 895 | GenerateTailCallToReturnedCode(masm); |
| 896 | } |
| 897 | |
| 898 | |
| 899 | static void GenerateMakeCodeYoungAgainCommon(MacroAssembler* masm) { |
| 900 | // For now, we are relying on the fact that make_code_young doesn't do any |
| 901 | // garbage collection which allows us to save/restore the registers without |
| 902 | // worrying about which of them contain pointers. We also don't build an |
| 903 | // internal frame to make the code faster, since we shouldn't have to do stack |
| 904 | // crawls in MakeCodeYoung. This seems a bit fragile. |
| 905 | |
| 906 | // Re-execute the code that was patched back to the young age when |
| 907 | // the stub returns. |
| 908 | __ subp(Operand(rsp, 0), Immediate(5)); |
| 909 | __ Pushad(); |
| 910 | __ Move(arg_reg_2, ExternalReference::isolate_address(masm->isolate())); |
| 911 | __ movp(arg_reg_1, Operand(rsp, kNumSafepointRegisters * kPointerSize)); |
| 912 | { // NOLINT |
| 913 | FrameScope scope(masm, StackFrame::MANUAL); |
| 914 | __ PrepareCallCFunction(2); |
| 915 | __ CallCFunction( |
| 916 | ExternalReference::get_make_code_young_function(masm->isolate()), 2); |
| 917 | } |
| 918 | __ Popad(); |
| 919 | __ ret(0); |
| 920 | } |
| 921 | |
| 922 | |
| 923 | #define DEFINE_CODE_AGE_BUILTIN_GENERATOR(C) \ |
| 924 | void Builtins::Generate_Make##C##CodeYoungAgainEvenMarking( \ |
| 925 | MacroAssembler* masm) { \ |
| 926 | GenerateMakeCodeYoungAgainCommon(masm); \ |
| 927 | } \ |
| 928 | void Builtins::Generate_Make##C##CodeYoungAgainOddMarking( \ |
| 929 | MacroAssembler* masm) { \ |
| 930 | GenerateMakeCodeYoungAgainCommon(masm); \ |
| 931 | } |
| 932 | CODE_AGE_LIST(DEFINE_CODE_AGE_BUILTIN_GENERATOR) |
| 933 | #undef DEFINE_CODE_AGE_BUILTIN_GENERATOR |
| 934 | |
| 935 | |
| 936 | void Builtins::Generate_MarkCodeAsExecutedOnce(MacroAssembler* masm) { |
| 937 | // For now, as in GenerateMakeCodeYoungAgainCommon, we are relying on the fact |
| 938 | // that make_code_young doesn't do any garbage collection which allows us to |
| 939 | // save/restore the registers without worrying about which of them contain |
| 940 | // pointers. |
| 941 | __ Pushad(); |
| 942 | __ Move(arg_reg_2, ExternalReference::isolate_address(masm->isolate())); |
| 943 | __ movp(arg_reg_1, Operand(rsp, kNumSafepointRegisters * kPointerSize)); |
| 944 | __ subp(arg_reg_1, Immediate(Assembler::kShortCallInstructionLength)); |
| 945 | { // NOLINT |
| 946 | FrameScope scope(masm, StackFrame::MANUAL); |
| 947 | __ PrepareCallCFunction(2); |
| 948 | __ CallCFunction( |
| 949 | ExternalReference::get_mark_code_as_executed_function(masm->isolate()), |
| 950 | 2); |
| 951 | } |
| 952 | __ Popad(); |
| 953 | |
| 954 | // Perform prologue operations usually performed by the young code stub. |
| 955 | __ PopReturnAddressTo(kScratchRegister); |
| 956 | __ pushq(rbp); // Caller's frame pointer. |
| 957 | __ movp(rbp, rsp); |
| 958 | __ Push(rsi); // Callee's context. |
| 959 | __ Push(rdi); // Callee's JS Function. |
| 960 | __ PushReturnAddressFrom(kScratchRegister); |
| 961 | |
| 962 | // Jump to point after the code-age stub. |
| 963 | __ ret(0); |
| 964 | } |
| 965 | |
| 966 | |
| 967 | void Builtins::Generate_MarkCodeAsExecutedTwice(MacroAssembler* masm) { |
| 968 | GenerateMakeCodeYoungAgainCommon(masm); |
| 969 | } |
| 970 | |
| 971 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 972 | void Builtins::Generate_MarkCodeAsToBeExecutedOnce(MacroAssembler* masm) { |
| 973 | Generate_MarkCodeAsExecutedOnce(masm); |
| 974 | } |
| 975 | |
| 976 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 977 | static void Generate_NotifyStubFailureHelper(MacroAssembler* masm, |
| 978 | SaveFPRegsMode save_doubles) { |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 979 | // Enter an internal frame. |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 980 | { |
| 981 | FrameScope scope(masm, StackFrame::INTERNAL); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 982 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 983 | // Preserve registers across notification, this is important for compiled |
| 984 | // stubs that tail call the runtime on deopts passing their parameters in |
| 985 | // registers. |
| 986 | __ Pushad(); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 987 | __ CallRuntime(Runtime::kNotifyStubFailure, save_doubles); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 988 | __ Popad(); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 989 | // Tear down internal frame. |
| 990 | } |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 991 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 992 | __ DropUnderReturnAddress(1); // Ignore state offset |
| 993 | __ ret(0); // Return to IC Miss stub, continuation still on stack. |
| 994 | } |
| 995 | |
| 996 | |
| 997 | void Builtins::Generate_NotifyStubFailure(MacroAssembler* masm) { |
| 998 | Generate_NotifyStubFailureHelper(masm, kDontSaveFPRegs); |
| 999 | } |
| 1000 | |
| 1001 | |
| 1002 | void Builtins::Generate_NotifyStubFailureSaveDoubles(MacroAssembler* masm) { |
| 1003 | Generate_NotifyStubFailureHelper(masm, kSaveFPRegs); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1004 | } |
| 1005 | |
| 1006 | |
| 1007 | static void Generate_NotifyDeoptimizedHelper(MacroAssembler* masm, |
| 1008 | Deoptimizer::BailoutType type) { |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 1009 | // Enter an internal frame. |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1010 | { |
| 1011 | FrameScope scope(masm, StackFrame::INTERNAL); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 1012 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1013 | // Pass the deoptimization type to the runtime system. |
| 1014 | __ Push(Smi::FromInt(static_cast<int>(type))); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 1015 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1016 | __ CallRuntime(Runtime::kNotifyDeoptimized); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1017 | // Tear down internal frame. |
| 1018 | } |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 1019 | |
| 1020 | // Get the full codegen state from the stack and untag it. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1021 | __ SmiToInteger32(kScratchRegister, Operand(rsp, kPCOnStackSize)); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 1022 | |
| 1023 | // Switch on the state. |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 1024 | Label not_no_registers, not_tos_rax; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1025 | __ cmpp(kScratchRegister, Immediate(FullCodeGenerator::NO_REGISTERS)); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 1026 | __ j(not_equal, ¬_no_registers, Label::kNear); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 1027 | __ ret(1 * kPointerSize); // Remove state. |
| 1028 | |
| 1029 | __ bind(¬_no_registers); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1030 | __ movp(rax, Operand(rsp, kPCOnStackSize + kPointerSize)); |
| 1031 | __ cmpp(kScratchRegister, Immediate(FullCodeGenerator::TOS_REG)); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 1032 | __ j(not_equal, ¬_tos_rax, Label::kNear); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 1033 | __ ret(2 * kPointerSize); // Remove state, rax. |
| 1034 | |
| 1035 | __ bind(¬_tos_rax); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1036 | __ Abort(kNoCasesLeft); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1037 | } |
| 1038 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1039 | |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1040 | void Builtins::Generate_NotifyDeoptimized(MacroAssembler* masm) { |
| 1041 | Generate_NotifyDeoptimizedHelper(masm, Deoptimizer::EAGER); |
| 1042 | } |
| 1043 | |
| 1044 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1045 | void Builtins::Generate_NotifySoftDeoptimized(MacroAssembler* masm) { |
| 1046 | Generate_NotifyDeoptimizedHelper(masm, Deoptimizer::SOFT); |
| 1047 | } |
| 1048 | |
| 1049 | |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1050 | void Builtins::Generate_NotifyLazyDeoptimized(MacroAssembler* masm) { |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 1051 | Generate_NotifyDeoptimizedHelper(masm, Deoptimizer::LAZY); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1052 | } |
| 1053 | |
| 1054 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1055 | // static |
| 1056 | void Builtins::Generate_DatePrototype_GetField(MacroAssembler* masm, |
| 1057 | int field_index) { |
| 1058 | // ----------- S t a t e ------------- |
| 1059 | // -- rsp[0] : return address |
| 1060 | // -- rsp[8] : receiver |
| 1061 | // ----------------------------------- |
| 1062 | |
| 1063 | // 1. Load receiver into rax and check that it's actually a JSDate object. |
| 1064 | Label receiver_not_date; |
| 1065 | { |
| 1066 | StackArgumentsAccessor args(rsp, 0); |
| 1067 | __ movp(rax, args.GetReceiverOperand()); |
| 1068 | __ JumpIfSmi(rax, &receiver_not_date); |
| 1069 | __ CmpObjectType(rax, JS_DATE_TYPE, rbx); |
| 1070 | __ j(not_equal, &receiver_not_date); |
| 1071 | } |
| 1072 | |
| 1073 | // 2. Load the specified date field, falling back to the runtime as necessary. |
| 1074 | if (field_index == JSDate::kDateValue) { |
| 1075 | __ movp(rax, FieldOperand(rax, JSDate::kValueOffset)); |
| 1076 | } else { |
| 1077 | if (field_index < JSDate::kFirstUncachedField) { |
| 1078 | Label stamp_mismatch; |
| 1079 | __ Load(rdx, ExternalReference::date_cache_stamp(masm->isolate())); |
| 1080 | __ cmpp(rdx, FieldOperand(rax, JSDate::kCacheStampOffset)); |
| 1081 | __ j(not_equal, &stamp_mismatch, Label::kNear); |
| 1082 | __ movp(rax, FieldOperand( |
| 1083 | rax, JSDate::kValueOffset + field_index * kPointerSize)); |
| 1084 | __ ret(1 * kPointerSize); |
| 1085 | __ bind(&stamp_mismatch); |
| 1086 | } |
| 1087 | FrameScope scope(masm, StackFrame::INTERNAL); |
| 1088 | __ PrepareCallCFunction(2); |
| 1089 | __ Move(arg_reg_1, rax); |
| 1090 | __ Move(arg_reg_2, Smi::FromInt(field_index)); |
| 1091 | __ CallCFunction( |
| 1092 | ExternalReference::get_date_field_function(masm->isolate()), 2); |
| 1093 | } |
| 1094 | __ ret(1 * kPointerSize); |
| 1095 | |
| 1096 | // 3. Raise a TypeError if the receiver is not a date. |
| 1097 | __ bind(&receiver_not_date); |
| 1098 | { |
| 1099 | FrameScope scope(masm, StackFrame::MANUAL); |
| 1100 | __ EnterFrame(StackFrame::INTERNAL); |
| 1101 | __ CallRuntime(Runtime::kThrowNotDateError); |
| 1102 | } |
| 1103 | } |
| 1104 | |
| 1105 | |
| 1106 | // static |
| 1107 | void Builtins::Generate_FunctionPrototypeApply(MacroAssembler* masm) { |
| 1108 | // ----------- S t a t e ------------- |
| 1109 | // -- rax : argc |
| 1110 | // -- rsp[0] : return address |
| 1111 | // -- rsp[8] : argArray |
| 1112 | // -- rsp[16] : thisArg |
| 1113 | // -- rsp[24] : receiver |
| 1114 | // ----------------------------------- |
| 1115 | |
| 1116 | // 1. Load receiver into rdi, argArray into rax (if present), remove all |
| 1117 | // arguments from the stack (including the receiver), and push thisArg (if |
| 1118 | // present) instead. |
| 1119 | { |
| 1120 | Label no_arg_array, no_this_arg; |
| 1121 | StackArgumentsAccessor args(rsp, rax); |
| 1122 | __ LoadRoot(rdx, Heap::kUndefinedValueRootIndex); |
| 1123 | __ movp(rbx, rdx); |
| 1124 | __ movp(rdi, args.GetReceiverOperand()); |
| 1125 | __ testp(rax, rax); |
| 1126 | __ j(zero, &no_this_arg, Label::kNear); |
| 1127 | { |
| 1128 | __ movp(rdx, args.GetArgumentOperand(1)); |
| 1129 | __ cmpp(rax, Immediate(1)); |
| 1130 | __ j(equal, &no_arg_array, Label::kNear); |
| 1131 | __ movp(rbx, args.GetArgumentOperand(2)); |
| 1132 | __ bind(&no_arg_array); |
| 1133 | } |
| 1134 | __ bind(&no_this_arg); |
| 1135 | __ PopReturnAddressTo(rcx); |
| 1136 | __ leap(rsp, Operand(rsp, rax, times_pointer_size, kPointerSize)); |
| 1137 | __ Push(rdx); |
| 1138 | __ PushReturnAddressFrom(rcx); |
| 1139 | __ movp(rax, rbx); |
| 1140 | } |
| 1141 | |
| 1142 | // ----------- S t a t e ------------- |
| 1143 | // -- rax : argArray |
| 1144 | // -- rdi : receiver |
| 1145 | // -- rsp[0] : return address |
| 1146 | // -- rsp[8] : thisArg |
| 1147 | // ----------------------------------- |
| 1148 | |
| 1149 | // 2. Make sure the receiver is actually callable. |
| 1150 | Label receiver_not_callable; |
| 1151 | __ JumpIfSmi(rdi, &receiver_not_callable, Label::kNear); |
| 1152 | __ movp(rcx, FieldOperand(rdi, HeapObject::kMapOffset)); |
| 1153 | __ testb(FieldOperand(rcx, Map::kBitFieldOffset), |
| 1154 | Immediate(1 << Map::kIsCallable)); |
| 1155 | __ j(zero, &receiver_not_callable, Label::kNear); |
| 1156 | |
| 1157 | // 3. Tail call with no arguments if argArray is null or undefined. |
| 1158 | Label no_arguments; |
| 1159 | __ JumpIfRoot(rax, Heap::kNullValueRootIndex, &no_arguments, Label::kNear); |
| 1160 | __ JumpIfRoot(rax, Heap::kUndefinedValueRootIndex, &no_arguments, |
| 1161 | Label::kNear); |
| 1162 | |
| 1163 | // 4a. Apply the receiver to the given argArray (passing undefined for |
| 1164 | // new.target). |
| 1165 | __ LoadRoot(rdx, Heap::kUndefinedValueRootIndex); |
| 1166 | __ Jump(masm->isolate()->builtins()->Apply(), RelocInfo::CODE_TARGET); |
| 1167 | |
| 1168 | // 4b. The argArray is either null or undefined, so we tail call without any |
| 1169 | // arguments to the receiver. |
| 1170 | __ bind(&no_arguments); |
| 1171 | { |
| 1172 | __ Set(rax, 0); |
| 1173 | __ Jump(masm->isolate()->builtins()->Call(), RelocInfo::CODE_TARGET); |
| 1174 | } |
| 1175 | |
| 1176 | // 4c. The receiver is not callable, throw an appropriate TypeError. |
| 1177 | __ bind(&receiver_not_callable); |
| 1178 | { |
| 1179 | StackArgumentsAccessor args(rsp, 0); |
| 1180 | __ movp(args.GetReceiverOperand(), rdi); |
| 1181 | __ TailCallRuntime(Runtime::kThrowApplyNonFunction); |
| 1182 | } |
| 1183 | } |
| 1184 | |
| 1185 | |
| 1186 | // static |
| 1187 | void Builtins::Generate_FunctionPrototypeCall(MacroAssembler* masm) { |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1188 | // Stack Layout: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1189 | // rsp[0] : Return address |
| 1190 | // rsp[8] : Argument n |
| 1191 | // rsp[16] : Argument n-1 |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1192 | // ... |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1193 | // rsp[8 * n] : Argument 1 |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1194 | // rsp[8 * (n + 1)] : Receiver (callable to call) |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1195 | // |
| 1196 | // rax contains the number of arguments, n, not counting the receiver. |
| 1197 | // |
| 1198 | // 1. Make sure we have at least one argument. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1199 | { |
| 1200 | Label done; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1201 | __ testp(rax, rax); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1202 | __ j(not_zero, &done, Label::kNear); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1203 | __ PopReturnAddressTo(rbx); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1204 | __ PushRoot(Heap::kUndefinedValueRootIndex); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1205 | __ PushReturnAddressFrom(rbx); |
| 1206 | __ incp(rax); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1207 | __ bind(&done); |
| 1208 | } |
| 1209 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1210 | // 2. Get the callable to call (passed as receiver) from the stack. |
| 1211 | { |
| 1212 | StackArgumentsAccessor args(rsp, rax); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1213 | __ movp(rdi, args.GetReceiverOperand()); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1214 | } |
| 1215 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1216 | // 3. Shift arguments and return address one slot down on the stack |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1217 | // (overwriting the original receiver). Adjust argument count to make |
| 1218 | // the original first argument the new receiver. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1219 | { |
| 1220 | Label loop; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1221 | __ movp(rcx, rax); |
| 1222 | StackArgumentsAccessor args(rsp, rcx); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1223 | __ bind(&loop); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1224 | __ movp(rbx, args.GetArgumentOperand(1)); |
| 1225 | __ movp(args.GetArgumentOperand(0), rbx); |
| 1226 | __ decp(rcx); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1227 | __ j(not_zero, &loop); // While non-zero. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1228 | __ DropUnderReturnAddress(1, rbx); // Drop one slot under return address. |
| 1229 | __ decp(rax); // One fewer argument (first argument is new receiver). |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1230 | } |
| 1231 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1232 | // 4. Call the callable. |
| 1233 | __ Jump(masm->isolate()->builtins()->Call(), RelocInfo::CODE_TARGET); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1234 | } |
| 1235 | |
| 1236 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1237 | void Builtins::Generate_ReflectApply(MacroAssembler* masm) { |
| 1238 | // ----------- S t a t e ------------- |
| 1239 | // -- rax : argc |
| 1240 | // -- rsp[0] : return address |
| 1241 | // -- rsp[8] : argumentsList |
| 1242 | // -- rsp[16] : thisArgument |
| 1243 | // -- rsp[24] : target |
| 1244 | // -- rsp[32] : receiver |
| 1245 | // ----------------------------------- |
| 1246 | |
| 1247 | // 1. Load target into rdi (if present), argumentsList into rax (if present), |
| 1248 | // remove all arguments from the stack (including the receiver), and push |
| 1249 | // thisArgument (if present) instead. |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1250 | { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1251 | Label done; |
| 1252 | StackArgumentsAccessor args(rsp, rax); |
| 1253 | __ LoadRoot(rdi, Heap::kUndefinedValueRootIndex); |
| 1254 | __ movp(rdx, rdi); |
| 1255 | __ movp(rbx, rdi); |
| 1256 | __ cmpp(rax, Immediate(1)); |
| 1257 | __ j(below, &done, Label::kNear); |
| 1258 | __ movp(rdi, args.GetArgumentOperand(1)); // target |
| 1259 | __ j(equal, &done, Label::kNear); |
| 1260 | __ movp(rdx, args.GetArgumentOperand(2)); // thisArgument |
| 1261 | __ cmpp(rax, Immediate(3)); |
| 1262 | __ j(below, &done, Label::kNear); |
| 1263 | __ movp(rbx, args.GetArgumentOperand(3)); // argumentsList |
| 1264 | __ bind(&done); |
| 1265 | __ PopReturnAddressTo(rcx); |
| 1266 | __ leap(rsp, Operand(rsp, rax, times_pointer_size, kPointerSize)); |
| 1267 | __ Push(rdx); |
| 1268 | __ PushReturnAddressFrom(rcx); |
| 1269 | __ movp(rax, rbx); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1270 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1271 | |
| 1272 | // ----------- S t a t e ------------- |
| 1273 | // -- rax : argumentsList |
| 1274 | // -- rdi : target |
| 1275 | // -- rsp[0] : return address |
| 1276 | // -- rsp[8] : thisArgument |
| 1277 | // ----------------------------------- |
| 1278 | |
| 1279 | // 2. Make sure the target is actually callable. |
| 1280 | Label target_not_callable; |
| 1281 | __ JumpIfSmi(rdi, &target_not_callable, Label::kNear); |
| 1282 | __ movp(rcx, FieldOperand(rdi, HeapObject::kMapOffset)); |
| 1283 | __ testb(FieldOperand(rcx, Map::kBitFieldOffset), |
| 1284 | Immediate(1 << Map::kIsCallable)); |
| 1285 | __ j(zero, &target_not_callable, Label::kNear); |
| 1286 | |
| 1287 | // 3a. Apply the target to the given argumentsList (passing undefined for |
| 1288 | // new.target). |
| 1289 | __ LoadRoot(rdx, Heap::kUndefinedValueRootIndex); |
| 1290 | __ Jump(masm->isolate()->builtins()->Apply(), RelocInfo::CODE_TARGET); |
| 1291 | |
| 1292 | // 3b. The target is not callable, throw an appropriate TypeError. |
| 1293 | __ bind(&target_not_callable); |
| 1294 | { |
| 1295 | StackArgumentsAccessor args(rsp, 0); |
| 1296 | __ movp(args.GetReceiverOperand(), rdi); |
| 1297 | __ TailCallRuntime(Runtime::kThrowApplyNonFunction); |
| 1298 | } |
| 1299 | } |
| 1300 | |
| 1301 | |
| 1302 | void Builtins::Generate_ReflectConstruct(MacroAssembler* masm) { |
| 1303 | // ----------- S t a t e ------------- |
| 1304 | // -- rax : argc |
| 1305 | // -- rsp[0] : return address |
| 1306 | // -- rsp[8] : new.target (optional) |
| 1307 | // -- rsp[16] : argumentsList |
| 1308 | // -- rsp[24] : target |
| 1309 | // -- rsp[32] : receiver |
| 1310 | // ----------------------------------- |
| 1311 | |
| 1312 | // 1. Load target into rdi (if present), argumentsList into rax (if present), |
| 1313 | // new.target into rdx (if present, otherwise use target), remove all |
| 1314 | // arguments from the stack (including the receiver), and push thisArgument |
| 1315 | // (if present) instead. |
| 1316 | { |
| 1317 | Label done; |
| 1318 | StackArgumentsAccessor args(rsp, rax); |
| 1319 | __ LoadRoot(rdi, Heap::kUndefinedValueRootIndex); |
| 1320 | __ movp(rdx, rdi); |
| 1321 | __ movp(rbx, rdi); |
| 1322 | __ cmpp(rax, Immediate(1)); |
| 1323 | __ j(below, &done, Label::kNear); |
| 1324 | __ movp(rdi, args.GetArgumentOperand(1)); // target |
| 1325 | __ movp(rdx, rdi); // new.target defaults to target |
| 1326 | __ j(equal, &done, Label::kNear); |
| 1327 | __ movp(rbx, args.GetArgumentOperand(2)); // argumentsList |
| 1328 | __ cmpp(rax, Immediate(3)); |
| 1329 | __ j(below, &done, Label::kNear); |
| 1330 | __ movp(rdx, args.GetArgumentOperand(3)); // new.target |
| 1331 | __ bind(&done); |
| 1332 | __ PopReturnAddressTo(rcx); |
| 1333 | __ leap(rsp, Operand(rsp, rax, times_pointer_size, kPointerSize)); |
| 1334 | __ PushRoot(Heap::kUndefinedValueRootIndex); |
| 1335 | __ PushReturnAddressFrom(rcx); |
| 1336 | __ movp(rax, rbx); |
| 1337 | } |
| 1338 | |
| 1339 | // ----------- S t a t e ------------- |
| 1340 | // -- rax : argumentsList |
| 1341 | // -- rdx : new.target |
| 1342 | // -- rdi : target |
| 1343 | // -- rsp[0] : return address |
| 1344 | // -- rsp[8] : receiver (undefined) |
| 1345 | // ----------------------------------- |
| 1346 | |
| 1347 | // 2. Make sure the target is actually a constructor. |
| 1348 | Label target_not_constructor; |
| 1349 | __ JumpIfSmi(rdi, &target_not_constructor, Label::kNear); |
| 1350 | __ movp(rcx, FieldOperand(rdi, HeapObject::kMapOffset)); |
| 1351 | __ testb(FieldOperand(rcx, Map::kBitFieldOffset), |
| 1352 | Immediate(1 << Map::kIsConstructor)); |
| 1353 | __ j(zero, &target_not_constructor, Label::kNear); |
| 1354 | |
| 1355 | // 3. Make sure the target is actually a constructor. |
| 1356 | Label new_target_not_constructor; |
| 1357 | __ JumpIfSmi(rdx, &new_target_not_constructor, Label::kNear); |
| 1358 | __ movp(rcx, FieldOperand(rdx, HeapObject::kMapOffset)); |
| 1359 | __ testb(FieldOperand(rcx, Map::kBitFieldOffset), |
| 1360 | Immediate(1 << Map::kIsConstructor)); |
| 1361 | __ j(zero, &new_target_not_constructor, Label::kNear); |
| 1362 | |
| 1363 | // 4a. Construct the target with the given new.target and argumentsList. |
| 1364 | __ Jump(masm->isolate()->builtins()->Apply(), RelocInfo::CODE_TARGET); |
| 1365 | |
| 1366 | // 4b. The target is not a constructor, throw an appropriate TypeError. |
| 1367 | __ bind(&target_not_constructor); |
| 1368 | { |
| 1369 | StackArgumentsAccessor args(rsp, 0); |
| 1370 | __ movp(args.GetReceiverOperand(), rdi); |
| 1371 | __ TailCallRuntime(Runtime::kThrowCalledNonCallable); |
| 1372 | } |
| 1373 | |
| 1374 | // 4c. The new.target is not a constructor, throw an appropriate TypeError. |
| 1375 | __ bind(&new_target_not_constructor); |
| 1376 | { |
| 1377 | StackArgumentsAccessor args(rsp, 0); |
| 1378 | __ movp(args.GetReceiverOperand(), rdx); |
| 1379 | __ TailCallRuntime(Runtime::kThrowCalledNonCallable); |
| 1380 | } |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1381 | } |
| 1382 | |
| 1383 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1384 | void Builtins::Generate_InternalArrayCode(MacroAssembler* masm) { |
| 1385 | // ----------- S t a t e ------------- |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1386 | // -- rax : argc |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1387 | // -- rsp[0] : return address |
| 1388 | // -- rsp[8] : last argument |
| 1389 | // ----------------------------------- |
| 1390 | Label generic_array_code; |
| 1391 | |
| 1392 | // Get the InternalArray function. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1393 | __ LoadNativeContextSlot(Context::INTERNAL_ARRAY_FUNCTION_INDEX, rdi); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1394 | |
| 1395 | if (FLAG_debug_code) { |
| 1396 | // Initial map for the builtin InternalArray functions should be maps. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1397 | __ movp(rbx, FieldOperand(rdi, JSFunction::kPrototypeOrInitialMapOffset)); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1398 | // Will both indicate a NULL and a Smi. |
| 1399 | STATIC_ASSERT(kSmiTag == 0); |
| 1400 | Condition not_smi = NegateCondition(masm->CheckSmi(rbx)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1401 | __ Check(not_smi, kUnexpectedInitialMapForInternalArrayFunction); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1402 | __ CmpObjectType(rbx, MAP_TYPE, rcx); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1403 | __ Check(equal, kUnexpectedInitialMapForInternalArrayFunction); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1404 | } |
| 1405 | |
| 1406 | // Run the native code for the InternalArray function called as a normal |
| 1407 | // function. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1408 | // tail call a stub |
| 1409 | InternalArrayConstructorStub stub(masm->isolate()); |
| 1410 | __ TailCallStub(&stub); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1411 | } |
| 1412 | |
| 1413 | |
| 1414 | void Builtins::Generate_ArrayCode(MacroAssembler* masm) { |
| 1415 | // ----------- S t a t e ------------- |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1416 | // -- rax : argc |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1417 | // -- rsp[0] : return address |
| 1418 | // -- rsp[8] : last argument |
| 1419 | // ----------------------------------- |
| 1420 | Label generic_array_code; |
| 1421 | |
| 1422 | // Get the Array function. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1423 | __ LoadNativeContextSlot(Context::ARRAY_FUNCTION_INDEX, rdi); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1424 | |
| 1425 | if (FLAG_debug_code) { |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 1426 | // Initial map for the builtin Array functions should be maps. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1427 | __ movp(rbx, FieldOperand(rdi, JSFunction::kPrototypeOrInitialMapOffset)); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1428 | // Will both indicate a NULL and a Smi. |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 1429 | STATIC_ASSERT(kSmiTag == 0); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1430 | Condition not_smi = NegateCondition(masm->CheckSmi(rbx)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1431 | __ Check(not_smi, kUnexpectedInitialMapForArrayFunction); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1432 | __ CmpObjectType(rbx, MAP_TYPE, rcx); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1433 | __ Check(equal, kUnexpectedInitialMapForArrayFunction); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1434 | } |
| 1435 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1436 | __ movp(rdx, rdi); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1437 | // Run the native code for the Array function called as a normal function. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1438 | // tail call a stub |
| 1439 | __ LoadRoot(rbx, Heap::kUndefinedValueRootIndex); |
| 1440 | ArrayConstructorStub stub(masm->isolate()); |
| 1441 | __ TailCallStub(&stub); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1442 | } |
| 1443 | |
| 1444 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1445 | // static |
| 1446 | void Builtins::Generate_NumberConstructor(MacroAssembler* masm) { |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1447 | // ----------- S t a t e ------------- |
| 1448 | // -- rax : number of arguments |
| 1449 | // -- rdi : constructor function |
| 1450 | // -- rsp[0] : return address |
| 1451 | // -- rsp[(argc - n) * 8] : arg[n] (zero-based) |
| 1452 | // -- rsp[(argc + 1) * 8] : receiver |
| 1453 | // ----------------------------------- |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1454 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1455 | // 1. Load the first argument into rax and get rid of the rest (including the |
| 1456 | // receiver). |
| 1457 | Label no_arguments; |
| 1458 | { |
| 1459 | StackArgumentsAccessor args(rsp, rax); |
| 1460 | __ testp(rax, rax); |
| 1461 | __ j(zero, &no_arguments, Label::kNear); |
| 1462 | __ movp(rbx, args.GetArgumentOperand(1)); |
| 1463 | __ PopReturnAddressTo(rcx); |
| 1464 | __ leap(rsp, Operand(rsp, rax, times_pointer_size, kPointerSize)); |
| 1465 | __ PushReturnAddressFrom(rcx); |
| 1466 | __ movp(rax, rbx); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1467 | } |
| 1468 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1469 | // 2a. Convert the first argument to a number. |
| 1470 | ToNumberStub stub(masm->isolate()); |
| 1471 | __ TailCallStub(&stub); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1472 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1473 | // 2b. No arguments, return +0 (already in rax). |
| 1474 | __ bind(&no_arguments); |
| 1475 | __ ret(1 * kPointerSize); |
| 1476 | } |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1477 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1478 | |
| 1479 | // static |
| 1480 | void Builtins::Generate_NumberConstructor_ConstructStub(MacroAssembler* masm) { |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1481 | // ----------- S t a t e ------------- |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1482 | // -- rax : number of arguments |
| 1483 | // -- rdi : constructor function |
| 1484 | // -- rdx : new target |
| 1485 | // -- rsp[0] : return address |
| 1486 | // -- rsp[(argc - n) * 8] : arg[n] (zero-based) |
| 1487 | // -- rsp[(argc + 1) * 8] : receiver |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1488 | // ----------------------------------- |
| 1489 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1490 | // 1. Make sure we operate in the context of the called function. |
| 1491 | __ movp(rsi, FieldOperand(rdi, JSFunction::kContextOffset)); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1492 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1493 | // 2. Load the first argument into rbx and get rid of the rest (including the |
| 1494 | // receiver). |
| 1495 | { |
| 1496 | StackArgumentsAccessor args(rsp, rax); |
| 1497 | Label no_arguments, done; |
| 1498 | __ testp(rax, rax); |
| 1499 | __ j(zero, &no_arguments, Label::kNear); |
| 1500 | __ movp(rbx, args.GetArgumentOperand(1)); |
| 1501 | __ jmp(&done, Label::kNear); |
| 1502 | __ bind(&no_arguments); |
| 1503 | __ Move(rbx, Smi::FromInt(0)); |
| 1504 | __ bind(&done); |
| 1505 | __ PopReturnAddressTo(rcx); |
| 1506 | __ leap(rsp, Operand(rsp, rax, times_pointer_size, kPointerSize)); |
| 1507 | __ PushReturnAddressFrom(rcx); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1508 | } |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1509 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1510 | // 3. Make sure rbx is a number. |
| 1511 | { |
| 1512 | Label done_convert; |
| 1513 | __ JumpIfSmi(rbx, &done_convert); |
| 1514 | __ CompareRoot(FieldOperand(rbx, HeapObject::kMapOffset), |
| 1515 | Heap::kHeapNumberMapRootIndex); |
| 1516 | __ j(equal, &done_convert); |
| 1517 | { |
| 1518 | FrameScope scope(masm, StackFrame::INTERNAL); |
| 1519 | __ Push(rdx); |
| 1520 | __ Push(rdi); |
| 1521 | __ Move(rax, rbx); |
| 1522 | ToNumberStub stub(masm->isolate()); |
| 1523 | __ CallStub(&stub); |
| 1524 | __ Move(rbx, rax); |
| 1525 | __ Pop(rdi); |
| 1526 | __ Pop(rdx); |
| 1527 | } |
| 1528 | __ bind(&done_convert); |
| 1529 | } |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1530 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1531 | // 4. Check if new target and constructor differ. |
| 1532 | Label new_object; |
| 1533 | __ cmpp(rdx, rdi); |
| 1534 | __ j(not_equal, &new_object); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1535 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1536 | // 5. Allocate a JSValue wrapper for the number. |
| 1537 | __ AllocateJSValue(rax, rdi, rbx, rcx, &new_object); |
| 1538 | __ Ret(); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1539 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1540 | // 6. Fallback to the runtime to create new object. |
| 1541 | __ bind(&new_object); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1542 | { |
| 1543 | FrameScope scope(masm, StackFrame::INTERNAL); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1544 | __ Push(rbx); // the first argument |
| 1545 | __ Push(rdi); // constructor function |
| 1546 | __ Push(rdx); // new target |
| 1547 | __ CallRuntime(Runtime::kNewObject); |
| 1548 | __ Pop(FieldOperand(rax, JSValue::kValueOffset)); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1549 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1550 | __ Ret(); |
| 1551 | } |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1552 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1553 | |
| 1554 | // static |
| 1555 | void Builtins::Generate_StringConstructor(MacroAssembler* masm) { |
| 1556 | // ----------- S t a t e ------------- |
| 1557 | // -- rax : number of arguments |
| 1558 | // -- rdi : constructor function |
| 1559 | // -- rsp[0] : return address |
| 1560 | // -- rsp[(argc - n) * 8] : arg[n] (zero-based) |
| 1561 | // -- rsp[(argc + 1) * 8] : receiver |
| 1562 | // ----------------------------------- |
| 1563 | |
| 1564 | // 1. Load the first argument into rax and get rid of the rest (including the |
| 1565 | // receiver). |
| 1566 | Label no_arguments; |
| 1567 | { |
| 1568 | StackArgumentsAccessor args(rsp, rax); |
| 1569 | __ testp(rax, rax); |
| 1570 | __ j(zero, &no_arguments, Label::kNear); |
| 1571 | __ movp(rbx, args.GetArgumentOperand(1)); |
| 1572 | __ PopReturnAddressTo(rcx); |
| 1573 | __ leap(rsp, Operand(rsp, rax, times_pointer_size, kPointerSize)); |
| 1574 | __ PushReturnAddressFrom(rcx); |
| 1575 | __ movp(rax, rbx); |
| 1576 | } |
| 1577 | |
| 1578 | // 2a. At least one argument, return rax if it's a string, otherwise |
| 1579 | // dispatch to appropriate conversion. |
| 1580 | Label to_string, symbol_descriptive_string; |
| 1581 | { |
| 1582 | __ JumpIfSmi(rax, &to_string, Label::kNear); |
| 1583 | STATIC_ASSERT(FIRST_NONSTRING_TYPE == SYMBOL_TYPE); |
| 1584 | __ CmpObjectType(rax, FIRST_NONSTRING_TYPE, rdx); |
| 1585 | __ j(above, &to_string, Label::kNear); |
| 1586 | __ j(equal, &symbol_descriptive_string, Label::kNear); |
| 1587 | __ Ret(); |
| 1588 | } |
| 1589 | |
| 1590 | // 2b. No arguments, return the empty string (and pop the receiver). |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1591 | __ bind(&no_arguments); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1592 | { |
| 1593 | __ LoadRoot(rax, Heap::kempty_stringRootIndex); |
| 1594 | __ ret(1 * kPointerSize); |
| 1595 | } |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1596 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1597 | // 3a. Convert rax to a string. |
| 1598 | __ bind(&to_string); |
| 1599 | { |
| 1600 | ToStringStub stub(masm->isolate()); |
| 1601 | __ TailCallStub(&stub); |
| 1602 | } |
| 1603 | |
| 1604 | // 3b. Convert symbol in rax to a string. |
| 1605 | __ bind(&symbol_descriptive_string); |
| 1606 | { |
| 1607 | __ PopReturnAddressTo(rcx); |
| 1608 | __ Push(rax); |
| 1609 | __ PushReturnAddressFrom(rcx); |
| 1610 | __ TailCallRuntime(Runtime::kSymbolDescriptiveString); |
| 1611 | } |
| 1612 | } |
| 1613 | |
| 1614 | |
| 1615 | // static |
| 1616 | void Builtins::Generate_StringConstructor_ConstructStub(MacroAssembler* masm) { |
| 1617 | // ----------- S t a t e ------------- |
| 1618 | // -- rax : number of arguments |
| 1619 | // -- rdi : constructor function |
| 1620 | // -- rdx : new target |
| 1621 | // -- rsp[0] : return address |
| 1622 | // -- rsp[(argc - n) * 8] : arg[n] (zero-based) |
| 1623 | // -- rsp[(argc + 1) * 8] : receiver |
| 1624 | // ----------------------------------- |
| 1625 | |
| 1626 | // 1. Make sure we operate in the context of the called function. |
| 1627 | __ movp(rsi, FieldOperand(rdi, JSFunction::kContextOffset)); |
| 1628 | |
| 1629 | // 2. Load the first argument into rbx and get rid of the rest (including the |
| 1630 | // receiver). |
| 1631 | { |
| 1632 | StackArgumentsAccessor args(rsp, rax); |
| 1633 | Label no_arguments, done; |
| 1634 | __ testp(rax, rax); |
| 1635 | __ j(zero, &no_arguments, Label::kNear); |
| 1636 | __ movp(rbx, args.GetArgumentOperand(1)); |
| 1637 | __ jmp(&done, Label::kNear); |
| 1638 | __ bind(&no_arguments); |
| 1639 | __ LoadRoot(rbx, Heap::kempty_stringRootIndex); |
| 1640 | __ bind(&done); |
| 1641 | __ PopReturnAddressTo(rcx); |
| 1642 | __ leap(rsp, Operand(rsp, rax, times_pointer_size, kPointerSize)); |
| 1643 | __ PushReturnAddressFrom(rcx); |
| 1644 | } |
| 1645 | |
| 1646 | // 3. Make sure rbx is a string. |
| 1647 | { |
| 1648 | Label convert, done_convert; |
| 1649 | __ JumpIfSmi(rbx, &convert, Label::kNear); |
| 1650 | __ CmpObjectType(rbx, FIRST_NONSTRING_TYPE, rcx); |
| 1651 | __ j(below, &done_convert); |
| 1652 | __ bind(&convert); |
| 1653 | { |
| 1654 | FrameScope scope(masm, StackFrame::INTERNAL); |
| 1655 | ToStringStub stub(masm->isolate()); |
| 1656 | __ Push(rdx); |
| 1657 | __ Push(rdi); |
| 1658 | __ Move(rax, rbx); |
| 1659 | __ CallStub(&stub); |
| 1660 | __ Move(rbx, rax); |
| 1661 | __ Pop(rdi); |
| 1662 | __ Pop(rdx); |
| 1663 | } |
| 1664 | __ bind(&done_convert); |
| 1665 | } |
| 1666 | |
| 1667 | // 4. Check if new target and constructor differ. |
| 1668 | Label new_object; |
| 1669 | __ cmpp(rdx, rdi); |
| 1670 | __ j(not_equal, &new_object); |
| 1671 | |
| 1672 | // 5. Allocate a JSValue wrapper for the string. |
| 1673 | __ AllocateJSValue(rax, rdi, rbx, rcx, &new_object); |
| 1674 | __ Ret(); |
| 1675 | |
| 1676 | // 6. Fallback to the runtime to create new object. |
| 1677 | __ bind(&new_object); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1678 | { |
| 1679 | FrameScope scope(masm, StackFrame::INTERNAL); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1680 | __ Push(rbx); // the first argument |
| 1681 | __ Push(rdi); // constructor function |
| 1682 | __ Push(rdx); // new target |
| 1683 | __ CallRuntime(Runtime::kNewObject); |
| 1684 | __ Pop(FieldOperand(rax, JSValue::kValueOffset)); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1685 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1686 | __ Ret(); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1687 | } |
| 1688 | |
| 1689 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1690 | static void ArgumentsAdaptorStackCheck(MacroAssembler* masm, |
| 1691 | Label* stack_overflow) { |
| 1692 | // ----------- S t a t e ------------- |
| 1693 | // -- rax : actual number of arguments |
| 1694 | // -- rbx : expected number of arguments |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1695 | // -- rdx : new target (passed through to callee) |
| 1696 | // -- rdi : function (passed through to callee) |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1697 | // ----------------------------------- |
| 1698 | // Check the stack for overflow. We are not trying to catch |
| 1699 | // interruptions (e.g. debug break and preemption) here, so the "real stack |
| 1700 | // limit" is checked. |
| 1701 | Label okay; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1702 | __ LoadRoot(r8, Heap::kRealStackLimitRootIndex); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1703 | __ movp(rcx, rsp); |
| 1704 | // Make rcx the space we have left. The stack might already be overflowed |
| 1705 | // here which will cause rcx to become negative. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1706 | __ subp(rcx, r8); |
| 1707 | // Make r8 the space we need for the array when it is unrolled onto the |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1708 | // stack. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1709 | __ movp(r8, rbx); |
| 1710 | __ shlp(r8, Immediate(kPointerSizeLog2)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1711 | // Check if the arguments will overflow the stack. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1712 | __ cmpp(rcx, r8); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1713 | __ j(less_equal, stack_overflow); // Signed comparison. |
| 1714 | } |
| 1715 | |
| 1716 | |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1717 | static void EnterArgumentsAdaptorFrame(MacroAssembler* masm) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1718 | __ pushq(rbp); |
| 1719 | __ movp(rbp, rsp); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1720 | |
| 1721 | // Store the arguments adaptor context sentinel. |
| 1722 | __ Push(Smi::FromInt(StackFrame::ARGUMENTS_ADAPTOR)); |
| 1723 | |
| 1724 | // Push the function on the stack. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1725 | __ Push(rdi); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1726 | |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 1727 | // Preserve the number of arguments on the stack. Must preserve rax, |
| 1728 | // rbx and rcx because these registers are used when copying the |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1729 | // arguments and the receiver. |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 1730 | __ Integer32ToSmi(r8, rax); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1731 | __ Push(r8); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1732 | } |
| 1733 | |
| 1734 | |
| 1735 | static void LeaveArgumentsAdaptorFrame(MacroAssembler* masm) { |
| 1736 | // Retrieve the number of arguments from the stack. Number is a Smi. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1737 | __ movp(rbx, Operand(rbp, ArgumentsAdaptorFrameConstants::kLengthOffset)); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1738 | |
| 1739 | // Leave the frame. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1740 | __ movp(rsp, rbp); |
| 1741 | __ popq(rbp); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1742 | |
| 1743 | // Remove caller arguments from the stack. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1744 | __ PopReturnAddressTo(rcx); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1745 | SmiIndex index = masm->SmiToIndex(rbx, rbx, kPointerSizeLog2); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1746 | __ leap(rsp, Operand(rsp, index.reg, index.scale, 1 * kPointerSize)); |
| 1747 | __ PushReturnAddressFrom(rcx); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1748 | } |
| 1749 | |
| 1750 | |
| 1751 | void Builtins::Generate_ArgumentsAdaptorTrampoline(MacroAssembler* masm) { |
| 1752 | // ----------- S t a t e ------------- |
| 1753 | // -- rax : actual number of arguments |
| 1754 | // -- rbx : expected number of arguments |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1755 | // -- rdx : new target (passed through to callee) |
| 1756 | // -- rdi : function (passed through to callee) |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1757 | // ----------------------------------- |
| 1758 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1759 | Label invoke, dont_adapt_arguments, stack_overflow; |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 1760 | Counters* counters = masm->isolate()->counters(); |
| 1761 | __ IncrementCounter(counters->arguments_adaptors(), 1); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1762 | |
| 1763 | Label enough, too_few; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1764 | __ cmpp(rax, rbx); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1765 | __ j(less, &too_few); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1766 | __ cmpp(rbx, Immediate(SharedFunctionInfo::kDontAdaptArgumentsSentinel)); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1767 | __ j(equal, &dont_adapt_arguments); |
| 1768 | |
| 1769 | { // Enough parameters: Actual >= expected. |
| 1770 | __ bind(&enough); |
| 1771 | EnterArgumentsAdaptorFrame(masm); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1772 | ArgumentsAdaptorStackCheck(masm, &stack_overflow); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1773 | |
| 1774 | // Copy receiver and all expected arguments. |
| 1775 | const int offset = StandardFrameConstants::kCallerSPOffset; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1776 | __ leap(rax, Operand(rbp, rax, times_pointer_size, offset)); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 1777 | __ Set(r8, -1); // account for receiver |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1778 | |
| 1779 | Label copy; |
| 1780 | __ bind(©); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1781 | __ incp(r8); |
| 1782 | __ Push(Operand(rax, 0)); |
| 1783 | __ subp(rax, Immediate(kPointerSize)); |
| 1784 | __ cmpp(r8, rbx); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1785 | __ j(less, ©); |
| 1786 | __ jmp(&invoke); |
| 1787 | } |
| 1788 | |
| 1789 | { // Too few parameters: Actual < expected. |
| 1790 | __ bind(&too_few); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1791 | |
| 1792 | // If the function is strong we need to throw an error. |
| 1793 | Label no_strong_error; |
| 1794 | __ movp(kScratchRegister, |
| 1795 | FieldOperand(rdi, JSFunction::kSharedFunctionInfoOffset)); |
| 1796 | __ testb(FieldOperand(kScratchRegister, |
| 1797 | SharedFunctionInfo::kStrongModeByteOffset), |
| 1798 | Immediate(1 << SharedFunctionInfo::kStrongModeBitWithinByte)); |
| 1799 | __ j(equal, &no_strong_error, Label::kNear); |
| 1800 | |
| 1801 | // What we really care about is the required number of arguments. |
| 1802 | |
| 1803 | if (kPointerSize == kInt32Size) { |
| 1804 | __ movp( |
| 1805 | kScratchRegister, |
| 1806 | FieldOperand(kScratchRegister, SharedFunctionInfo::kLengthOffset)); |
| 1807 | __ SmiToInteger32(kScratchRegister, kScratchRegister); |
| 1808 | } else { |
| 1809 | // See comment near kLengthOffset in src/objects.h |
| 1810 | __ movsxlq( |
| 1811 | kScratchRegister, |
| 1812 | FieldOperand(kScratchRegister, SharedFunctionInfo::kLengthOffset)); |
| 1813 | __ shrq(kScratchRegister, Immediate(1)); |
| 1814 | } |
| 1815 | |
| 1816 | __ cmpp(rax, kScratchRegister); |
| 1817 | __ j(greater_equal, &no_strong_error, Label::kNear); |
| 1818 | |
| 1819 | { |
| 1820 | FrameScope frame(masm, StackFrame::MANUAL); |
| 1821 | EnterArgumentsAdaptorFrame(masm); |
| 1822 | __ CallRuntime(Runtime::kThrowStrongModeTooFewArguments); |
| 1823 | } |
| 1824 | |
| 1825 | __ bind(&no_strong_error); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1826 | EnterArgumentsAdaptorFrame(masm); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1827 | ArgumentsAdaptorStackCheck(masm, &stack_overflow); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1828 | |
| 1829 | // Copy receiver and all actual arguments. |
| 1830 | const int offset = StandardFrameConstants::kCallerSPOffset; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1831 | __ leap(rdi, Operand(rbp, rax, times_pointer_size, offset)); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 1832 | __ Set(r8, -1); // account for receiver |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1833 | |
| 1834 | Label copy; |
| 1835 | __ bind(©); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1836 | __ incp(r8); |
| 1837 | __ Push(Operand(rdi, 0)); |
| 1838 | __ subp(rdi, Immediate(kPointerSize)); |
| 1839 | __ cmpp(r8, rax); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1840 | __ j(less, ©); |
| 1841 | |
| 1842 | // Fill remaining expected arguments with undefined values. |
| 1843 | Label fill; |
| 1844 | __ LoadRoot(kScratchRegister, Heap::kUndefinedValueRootIndex); |
| 1845 | __ bind(&fill); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1846 | __ incp(r8); |
| 1847 | __ Push(kScratchRegister); |
| 1848 | __ cmpp(r8, rbx); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1849 | __ j(less, &fill); |
| 1850 | |
| 1851 | // Restore function pointer. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1852 | __ movp(rdi, Operand(rbp, JavaScriptFrameConstants::kFunctionOffset)); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1853 | } |
| 1854 | |
| 1855 | // Call the entry point. |
| 1856 | __ bind(&invoke); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1857 | __ movp(rax, rbx); |
| 1858 | // rax : expected number of arguments |
| 1859 | // rdx : new target (passed through to callee) |
| 1860 | // rdi : function (passed through to callee) |
| 1861 | __ movp(rcx, FieldOperand(rdi, JSFunction::kCodeEntryOffset)); |
| 1862 | __ call(rcx); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1863 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1864 | // Store offset of return address for deoptimizer. |
| 1865 | masm->isolate()->heap()->SetArgumentsAdaptorDeoptPCOffset(masm->pc_offset()); |
| 1866 | |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1867 | // Leave frame and return. |
| 1868 | LeaveArgumentsAdaptorFrame(masm); |
| 1869 | __ ret(0); |
| 1870 | |
| 1871 | // ------------------------------------------- |
| 1872 | // Dont adapt arguments. |
| 1873 | // ------------------------------------------- |
| 1874 | __ bind(&dont_adapt_arguments); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1875 | __ movp(rcx, FieldOperand(rdi, JSFunction::kCodeEntryOffset)); |
| 1876 | __ jmp(rcx); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1877 | |
| 1878 | __ bind(&stack_overflow); |
| 1879 | { |
| 1880 | FrameScope frame(masm, StackFrame::MANUAL); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1881 | __ CallRuntime(Runtime::kThrowStackOverflow); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1882 | __ int3(); |
| 1883 | } |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1884 | } |
| 1885 | |
| 1886 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1887 | // static |
| 1888 | void Builtins::Generate_Apply(MacroAssembler* masm) { |
| 1889 | // ----------- S t a t e ------------- |
| 1890 | // -- rax : argumentsList |
| 1891 | // -- rdi : target |
| 1892 | // -- rdx : new.target (checked to be constructor or undefined) |
| 1893 | // -- rsp[0] : return address. |
| 1894 | // -- rsp[8] : thisArgument |
| 1895 | // ----------------------------------- |
| 1896 | |
| 1897 | // Create the list of arguments from the array-like argumentsList. |
| 1898 | { |
| 1899 | Label create_arguments, create_array, create_runtime, done_create; |
| 1900 | __ JumpIfSmi(rax, &create_runtime); |
| 1901 | |
| 1902 | // Load the map of argumentsList into rcx. |
| 1903 | __ movp(rcx, FieldOperand(rax, HeapObject::kMapOffset)); |
| 1904 | |
| 1905 | // Load native context into rbx. |
| 1906 | __ movp(rbx, NativeContextOperand()); |
| 1907 | |
| 1908 | // Check if argumentsList is an (unmodified) arguments object. |
| 1909 | __ cmpp(rcx, ContextOperand(rbx, Context::SLOPPY_ARGUMENTS_MAP_INDEX)); |
| 1910 | __ j(equal, &create_arguments); |
| 1911 | __ cmpp(rcx, ContextOperand(rbx, Context::STRICT_ARGUMENTS_MAP_INDEX)); |
| 1912 | __ j(equal, &create_arguments); |
| 1913 | |
| 1914 | // Check if argumentsList is a fast JSArray. |
| 1915 | __ CmpInstanceType(rcx, JS_ARRAY_TYPE); |
| 1916 | __ j(equal, &create_array); |
| 1917 | |
| 1918 | // Ask the runtime to create the list (actually a FixedArray). |
| 1919 | __ bind(&create_runtime); |
| 1920 | { |
| 1921 | FrameScope scope(masm, StackFrame::INTERNAL); |
| 1922 | __ Push(rdi); |
| 1923 | __ Push(rdx); |
| 1924 | __ Push(rax); |
| 1925 | __ CallRuntime(Runtime::kCreateListFromArrayLike); |
| 1926 | __ Pop(rdx); |
| 1927 | __ Pop(rdi); |
| 1928 | __ SmiToInteger32(rbx, FieldOperand(rax, FixedArray::kLengthOffset)); |
| 1929 | } |
| 1930 | __ jmp(&done_create); |
| 1931 | |
| 1932 | // Try to create the list from an arguments object. |
| 1933 | __ bind(&create_arguments); |
| 1934 | __ movp(rbx, |
| 1935 | FieldOperand(rax, JSObject::kHeaderSize + |
| 1936 | Heap::kArgumentsLengthIndex * kPointerSize)); |
| 1937 | __ movp(rcx, FieldOperand(rax, JSObject::kElementsOffset)); |
| 1938 | __ cmpp(rbx, FieldOperand(rcx, FixedArray::kLengthOffset)); |
| 1939 | __ j(not_equal, &create_runtime); |
| 1940 | __ SmiToInteger32(rbx, rbx); |
| 1941 | __ movp(rax, rcx); |
| 1942 | __ jmp(&done_create); |
| 1943 | |
| 1944 | // Try to create the list from a JSArray object. |
| 1945 | __ bind(&create_array); |
| 1946 | __ movzxbp(rcx, FieldOperand(rcx, Map::kBitField2Offset)); |
| 1947 | __ DecodeField<Map::ElementsKindBits>(rcx); |
| 1948 | STATIC_ASSERT(FAST_SMI_ELEMENTS == 0); |
| 1949 | STATIC_ASSERT(FAST_HOLEY_SMI_ELEMENTS == 1); |
| 1950 | STATIC_ASSERT(FAST_ELEMENTS == 2); |
| 1951 | __ cmpl(rcx, Immediate(FAST_ELEMENTS)); |
| 1952 | __ j(above, &create_runtime); |
| 1953 | __ cmpl(rcx, Immediate(FAST_HOLEY_SMI_ELEMENTS)); |
| 1954 | __ j(equal, &create_runtime); |
| 1955 | __ SmiToInteger32(rbx, FieldOperand(rax, JSArray::kLengthOffset)); |
| 1956 | __ movp(rax, FieldOperand(rax, JSArray::kElementsOffset)); |
| 1957 | |
| 1958 | __ bind(&done_create); |
| 1959 | } |
| 1960 | |
| 1961 | // Check for stack overflow. |
| 1962 | { |
| 1963 | // Check the stack for overflow. We are not trying to catch interruptions |
| 1964 | // (i.e. debug break and preemption) here, so check the "real stack limit". |
| 1965 | Label done; |
| 1966 | __ LoadRoot(kScratchRegister, Heap::kRealStackLimitRootIndex); |
| 1967 | __ movp(rcx, rsp); |
| 1968 | // Make rcx the space we have left. The stack might already be overflowed |
| 1969 | // here which will cause rcx to become negative. |
| 1970 | __ subp(rcx, kScratchRegister); |
| 1971 | __ sarp(rcx, Immediate(kPointerSizeLog2)); |
| 1972 | // Check if the arguments will overflow the stack. |
| 1973 | __ cmpp(rcx, rbx); |
| 1974 | __ j(greater, &done, Label::kNear); // Signed comparison. |
| 1975 | __ TailCallRuntime(Runtime::kThrowStackOverflow); |
| 1976 | __ bind(&done); |
| 1977 | } |
| 1978 | |
| 1979 | // ----------- S t a t e ------------- |
| 1980 | // -- rdi : target |
| 1981 | // -- rax : args (a FixedArray built from argumentsList) |
| 1982 | // -- rbx : len (number of elements to push from args) |
| 1983 | // -- rdx : new.target (checked to be constructor or undefined) |
| 1984 | // -- rsp[0] : return address. |
| 1985 | // -- rsp[8] : thisArgument |
| 1986 | // ----------------------------------- |
| 1987 | |
| 1988 | // Push arguments onto the stack (thisArgument is already on the stack). |
| 1989 | { |
| 1990 | __ PopReturnAddressTo(r8); |
| 1991 | __ Set(rcx, 0); |
| 1992 | Label done, loop; |
| 1993 | __ bind(&loop); |
| 1994 | __ cmpl(rcx, rbx); |
| 1995 | __ j(equal, &done, Label::kNear); |
| 1996 | __ Push( |
| 1997 | FieldOperand(rax, rcx, times_pointer_size, FixedArray::kHeaderSize)); |
| 1998 | __ incl(rcx); |
| 1999 | __ jmp(&loop); |
| 2000 | __ bind(&done); |
| 2001 | __ PushReturnAddressFrom(r8); |
| 2002 | __ Move(rax, rcx); |
| 2003 | } |
| 2004 | |
| 2005 | // Dispatch to Call or Construct depending on whether new.target is undefined. |
| 2006 | { |
| 2007 | __ CompareRoot(rdx, Heap::kUndefinedValueRootIndex); |
| 2008 | __ j(equal, masm->isolate()->builtins()->Call(), RelocInfo::CODE_TARGET); |
| 2009 | __ Jump(masm->isolate()->builtins()->Construct(), RelocInfo::CODE_TARGET); |
| 2010 | } |
| 2011 | } |
| 2012 | |
| 2013 | |
| 2014 | // static |
| 2015 | void Builtins::Generate_CallFunction(MacroAssembler* masm, |
| 2016 | ConvertReceiverMode mode) { |
| 2017 | // ----------- S t a t e ------------- |
| 2018 | // -- rax : the number of arguments (not including the receiver) |
| 2019 | // -- rdi : the function to call (checked to be a JSFunction) |
| 2020 | // ----------------------------------- |
| 2021 | StackArgumentsAccessor args(rsp, rax); |
| 2022 | __ AssertFunction(rdi); |
| 2023 | |
| 2024 | // ES6 section 9.2.1 [[Call]] ( thisArgument, argumentsList) |
| 2025 | // Check that the function is not a "classConstructor". |
| 2026 | Label class_constructor; |
| 2027 | __ movp(rdx, FieldOperand(rdi, JSFunction::kSharedFunctionInfoOffset)); |
| 2028 | __ testb(FieldOperand(rdx, SharedFunctionInfo::kFunctionKindByteOffset), |
| 2029 | Immediate(SharedFunctionInfo::kClassConstructorBitsWithinByte)); |
| 2030 | __ j(not_zero, &class_constructor); |
| 2031 | |
| 2032 | // ----------- S t a t e ------------- |
| 2033 | // -- rax : the number of arguments (not including the receiver) |
| 2034 | // -- rdx : the shared function info. |
| 2035 | // -- rdi : the function to call (checked to be a JSFunction) |
| 2036 | // ----------------------------------- |
| 2037 | |
| 2038 | // Enter the context of the function; ToObject has to run in the function |
| 2039 | // context, and we also need to take the global proxy from the function |
| 2040 | // context in case of conversion. |
| 2041 | STATIC_ASSERT(SharedFunctionInfo::kNativeByteOffset == |
| 2042 | SharedFunctionInfo::kStrictModeByteOffset); |
| 2043 | __ movp(rsi, FieldOperand(rdi, JSFunction::kContextOffset)); |
| 2044 | // We need to convert the receiver for non-native sloppy mode functions. |
| 2045 | Label done_convert; |
| 2046 | __ testb(FieldOperand(rdx, SharedFunctionInfo::kNativeByteOffset), |
| 2047 | Immediate((1 << SharedFunctionInfo::kNativeBitWithinByte) | |
| 2048 | (1 << SharedFunctionInfo::kStrictModeBitWithinByte))); |
| 2049 | __ j(not_zero, &done_convert); |
| 2050 | { |
| 2051 | // ----------- S t a t e ------------- |
| 2052 | // -- rax : the number of arguments (not including the receiver) |
| 2053 | // -- rdx : the shared function info. |
| 2054 | // -- rdi : the function to call (checked to be a JSFunction) |
| 2055 | // -- rsi : the function context. |
| 2056 | // ----------------------------------- |
| 2057 | |
| 2058 | if (mode == ConvertReceiverMode::kNullOrUndefined) { |
| 2059 | // Patch receiver to global proxy. |
| 2060 | __ LoadGlobalProxy(rcx); |
| 2061 | } else { |
| 2062 | Label convert_to_object, convert_receiver; |
| 2063 | __ movp(rcx, args.GetReceiverOperand()); |
| 2064 | __ JumpIfSmi(rcx, &convert_to_object, Label::kNear); |
| 2065 | STATIC_ASSERT(LAST_JS_RECEIVER_TYPE == LAST_TYPE); |
| 2066 | __ CmpObjectType(rcx, FIRST_JS_RECEIVER_TYPE, rbx); |
| 2067 | __ j(above_equal, &done_convert); |
| 2068 | if (mode != ConvertReceiverMode::kNotNullOrUndefined) { |
| 2069 | Label convert_global_proxy; |
| 2070 | __ JumpIfRoot(rcx, Heap::kUndefinedValueRootIndex, |
| 2071 | &convert_global_proxy, Label::kNear); |
| 2072 | __ JumpIfNotRoot(rcx, Heap::kNullValueRootIndex, &convert_to_object, |
| 2073 | Label::kNear); |
| 2074 | __ bind(&convert_global_proxy); |
| 2075 | { |
| 2076 | // Patch receiver to global proxy. |
| 2077 | __ LoadGlobalProxy(rcx); |
| 2078 | } |
| 2079 | __ jmp(&convert_receiver); |
| 2080 | } |
| 2081 | __ bind(&convert_to_object); |
| 2082 | { |
| 2083 | // Convert receiver using ToObject. |
| 2084 | // TODO(bmeurer): Inline the allocation here to avoid building the frame |
| 2085 | // in the fast case? (fall back to AllocateInNewSpace?) |
| 2086 | FrameScope scope(masm, StackFrame::INTERNAL); |
| 2087 | __ Integer32ToSmi(rax, rax); |
| 2088 | __ Push(rax); |
| 2089 | __ Push(rdi); |
| 2090 | __ movp(rax, rcx); |
| 2091 | ToObjectStub stub(masm->isolate()); |
| 2092 | __ CallStub(&stub); |
| 2093 | __ movp(rcx, rax); |
| 2094 | __ Pop(rdi); |
| 2095 | __ Pop(rax); |
| 2096 | __ SmiToInteger32(rax, rax); |
| 2097 | } |
| 2098 | __ movp(rdx, FieldOperand(rdi, JSFunction::kSharedFunctionInfoOffset)); |
| 2099 | __ bind(&convert_receiver); |
| 2100 | } |
| 2101 | __ movp(args.GetReceiverOperand(), rcx); |
| 2102 | } |
| 2103 | __ bind(&done_convert); |
| 2104 | |
| 2105 | // ----------- S t a t e ------------- |
| 2106 | // -- rax : the number of arguments (not including the receiver) |
| 2107 | // -- rdx : the shared function info. |
| 2108 | // -- rdi : the function to call (checked to be a JSFunction) |
| 2109 | // -- rsi : the function context. |
| 2110 | // ----------------------------------- |
| 2111 | |
| 2112 | __ LoadSharedFunctionInfoSpecialField( |
| 2113 | rbx, rdx, SharedFunctionInfo::kFormalParameterCountOffset); |
| 2114 | ParameterCount actual(rax); |
| 2115 | ParameterCount expected(rbx); |
| 2116 | |
| 2117 | __ InvokeFunctionCode(rdi, no_reg, expected, actual, JUMP_FUNCTION, |
| 2118 | CheckDebugStepCallWrapper()); |
| 2119 | |
| 2120 | // The function is a "classConstructor", need to raise an exception. |
| 2121 | __ bind(&class_constructor); |
| 2122 | { |
| 2123 | FrameScope frame(masm, StackFrame::INTERNAL); |
| 2124 | __ Push(rdi); |
| 2125 | __ CallRuntime(Runtime::kThrowConstructorNonCallableError); |
| 2126 | } |
| 2127 | } |
| 2128 | |
| 2129 | |
| 2130 | namespace { |
| 2131 | |
| 2132 | void Generate_PushBoundArguments(MacroAssembler* masm) { |
| 2133 | // ----------- S t a t e ------------- |
| 2134 | // -- rax : the number of arguments (not including the receiver) |
| 2135 | // -- rdx : new.target (only in case of [[Construct]]) |
| 2136 | // -- rdi : target (checked to be a JSBoundFunction) |
| 2137 | // ----------------------------------- |
| 2138 | |
| 2139 | // Load [[BoundArguments]] into rcx and length of that into rbx. |
| 2140 | Label no_bound_arguments; |
| 2141 | __ movp(rcx, FieldOperand(rdi, JSBoundFunction::kBoundArgumentsOffset)); |
| 2142 | __ SmiToInteger32(rbx, FieldOperand(rcx, FixedArray::kLengthOffset)); |
| 2143 | __ testl(rbx, rbx); |
| 2144 | __ j(zero, &no_bound_arguments); |
| 2145 | { |
| 2146 | // ----------- S t a t e ------------- |
| 2147 | // -- rax : the number of arguments (not including the receiver) |
| 2148 | // -- rdx : new.target (only in case of [[Construct]]) |
| 2149 | // -- rdi : target (checked to be a JSBoundFunction) |
| 2150 | // -- rcx : the [[BoundArguments]] (implemented as FixedArray) |
| 2151 | // -- rbx : the number of [[BoundArguments]] (checked to be non-zero) |
| 2152 | // ----------------------------------- |
| 2153 | |
| 2154 | // Reserve stack space for the [[BoundArguments]]. |
| 2155 | { |
| 2156 | Label done; |
| 2157 | __ leap(kScratchRegister, Operand(rbx, times_pointer_size, 0)); |
| 2158 | __ subp(rsp, kScratchRegister); |
| 2159 | // Check the stack for overflow. We are not trying to catch interruptions |
| 2160 | // (i.e. debug break and preemption) here, so check the "real stack |
| 2161 | // limit". |
| 2162 | __ CompareRoot(rsp, Heap::kRealStackLimitRootIndex); |
| 2163 | __ j(greater, &done, Label::kNear); // Signed comparison. |
| 2164 | // Restore the stack pointer. |
| 2165 | __ leap(rsp, Operand(rsp, rbx, times_pointer_size, 0)); |
| 2166 | { |
| 2167 | FrameScope scope(masm, StackFrame::MANUAL); |
| 2168 | __ EnterFrame(StackFrame::INTERNAL); |
| 2169 | __ CallRuntime(Runtime::kThrowStackOverflow); |
| 2170 | } |
| 2171 | __ bind(&done); |
| 2172 | } |
| 2173 | |
| 2174 | // Adjust effective number of arguments to include return address. |
| 2175 | __ incl(rax); |
| 2176 | |
| 2177 | // Relocate arguments and return address down the stack. |
| 2178 | { |
| 2179 | Label loop; |
| 2180 | __ Set(rcx, 0); |
| 2181 | __ leap(rbx, Operand(rsp, rbx, times_pointer_size, 0)); |
| 2182 | __ bind(&loop); |
| 2183 | __ movp(kScratchRegister, Operand(rbx, rcx, times_pointer_size, 0)); |
| 2184 | __ movp(Operand(rsp, rcx, times_pointer_size, 0), kScratchRegister); |
| 2185 | __ incl(rcx); |
| 2186 | __ cmpl(rcx, rax); |
| 2187 | __ j(less, &loop); |
| 2188 | } |
| 2189 | |
| 2190 | // Copy [[BoundArguments]] to the stack (below the arguments). |
| 2191 | { |
| 2192 | Label loop; |
| 2193 | __ movp(rcx, FieldOperand(rdi, JSBoundFunction::kBoundArgumentsOffset)); |
| 2194 | __ SmiToInteger32(rbx, FieldOperand(rcx, FixedArray::kLengthOffset)); |
| 2195 | __ bind(&loop); |
| 2196 | __ decl(rbx); |
| 2197 | __ movp(kScratchRegister, FieldOperand(rcx, rbx, times_pointer_size, |
| 2198 | FixedArray::kHeaderSize)); |
| 2199 | __ movp(Operand(rsp, rax, times_pointer_size, 0), kScratchRegister); |
| 2200 | __ leal(rax, Operand(rax, 1)); |
| 2201 | __ j(greater, &loop); |
| 2202 | } |
| 2203 | |
| 2204 | // Adjust effective number of arguments (rax contains the number of |
| 2205 | // arguments from the call plus return address plus the number of |
| 2206 | // [[BoundArguments]]), so we need to subtract one for the return address. |
| 2207 | __ decl(rax); |
| 2208 | } |
| 2209 | __ bind(&no_bound_arguments); |
| 2210 | } |
| 2211 | |
| 2212 | } // namespace |
| 2213 | |
| 2214 | |
| 2215 | // static |
| 2216 | void Builtins::Generate_CallBoundFunction(MacroAssembler* masm) { |
| 2217 | // ----------- S t a t e ------------- |
| 2218 | // -- rax : the number of arguments (not including the receiver) |
| 2219 | // -- rdi : the function to call (checked to be a JSBoundFunction) |
| 2220 | // ----------------------------------- |
| 2221 | __ AssertBoundFunction(rdi); |
| 2222 | |
| 2223 | // Patch the receiver to [[BoundThis]]. |
| 2224 | StackArgumentsAccessor args(rsp, rax); |
| 2225 | __ movp(rbx, FieldOperand(rdi, JSBoundFunction::kBoundThisOffset)); |
| 2226 | __ movp(args.GetReceiverOperand(), rbx); |
| 2227 | |
| 2228 | // Push the [[BoundArguments]] onto the stack. |
| 2229 | Generate_PushBoundArguments(masm); |
| 2230 | |
| 2231 | // Call the [[BoundTargetFunction]] via the Call builtin. |
| 2232 | __ movp(rdi, FieldOperand(rdi, JSBoundFunction::kBoundTargetFunctionOffset)); |
| 2233 | __ Load(rcx, |
| 2234 | ExternalReference(Builtins::kCall_ReceiverIsAny, masm->isolate())); |
| 2235 | __ leap(rcx, FieldOperand(rcx, Code::kHeaderSize)); |
| 2236 | __ jmp(rcx); |
| 2237 | } |
| 2238 | |
| 2239 | |
| 2240 | // static |
| 2241 | void Builtins::Generate_Call(MacroAssembler* masm, ConvertReceiverMode mode) { |
| 2242 | // ----------- S t a t e ------------- |
| 2243 | // -- rax : the number of arguments (not including the receiver) |
| 2244 | // -- rdi : the target to call (can be any Object) |
| 2245 | // ----------------------------------- |
| 2246 | StackArgumentsAccessor args(rsp, rax); |
| 2247 | |
| 2248 | Label non_callable, non_function, non_smi; |
| 2249 | __ JumpIfSmi(rdi, &non_callable); |
| 2250 | __ bind(&non_smi); |
| 2251 | __ CmpObjectType(rdi, JS_FUNCTION_TYPE, rcx); |
| 2252 | __ j(equal, masm->isolate()->builtins()->CallFunction(mode), |
| 2253 | RelocInfo::CODE_TARGET); |
| 2254 | __ CmpInstanceType(rcx, JS_BOUND_FUNCTION_TYPE); |
| 2255 | __ j(equal, masm->isolate()->builtins()->CallBoundFunction(), |
| 2256 | RelocInfo::CODE_TARGET); |
| 2257 | __ CmpInstanceType(rcx, JS_PROXY_TYPE); |
| 2258 | __ j(not_equal, &non_function); |
| 2259 | |
| 2260 | // 1. Runtime fallback for Proxy [[Call]]. |
| 2261 | __ PopReturnAddressTo(kScratchRegister); |
| 2262 | __ Push(rdi); |
| 2263 | __ PushReturnAddressFrom(kScratchRegister); |
| 2264 | // Increase the arguments size to include the pushed function and the |
| 2265 | // existing receiver on the stack. |
| 2266 | __ addp(rax, Immediate(2)); |
| 2267 | // Tail-call to the runtime. |
| 2268 | __ JumpToExternalReference( |
| 2269 | ExternalReference(Runtime::kJSProxyCall, masm->isolate())); |
| 2270 | |
| 2271 | // 2. Call to something else, which might have a [[Call]] internal method (if |
| 2272 | // not we raise an exception). |
| 2273 | __ bind(&non_function); |
| 2274 | // Check if target has a [[Call]] internal method. |
| 2275 | __ testb(FieldOperand(rcx, Map::kBitFieldOffset), |
| 2276 | Immediate(1 << Map::kIsCallable)); |
| 2277 | __ j(zero, &non_callable, Label::kNear); |
| 2278 | // Overwrite the original receiver with the (original) target. |
| 2279 | __ movp(args.GetReceiverOperand(), rdi); |
| 2280 | // Let the "call_as_function_delegate" take care of the rest. |
| 2281 | __ LoadNativeContextSlot(Context::CALL_AS_FUNCTION_DELEGATE_INDEX, rdi); |
| 2282 | __ Jump(masm->isolate()->builtins()->CallFunction( |
| 2283 | ConvertReceiverMode::kNotNullOrUndefined), |
| 2284 | RelocInfo::CODE_TARGET); |
| 2285 | |
| 2286 | // 3. Call to something that is not callable. |
| 2287 | __ bind(&non_callable); |
| 2288 | { |
| 2289 | FrameScope scope(masm, StackFrame::INTERNAL); |
| 2290 | __ Push(rdi); |
| 2291 | __ CallRuntime(Runtime::kThrowCalledNonCallable); |
| 2292 | } |
| 2293 | } |
| 2294 | |
| 2295 | |
| 2296 | // static |
| 2297 | void Builtins::Generate_ConstructFunction(MacroAssembler* masm) { |
| 2298 | // ----------- S t a t e ------------- |
| 2299 | // -- rax : the number of arguments (not including the receiver) |
| 2300 | // -- rdx : the new target (checked to be a constructor) |
| 2301 | // -- rdi : the constructor to call (checked to be a JSFunction) |
| 2302 | // ----------------------------------- |
| 2303 | __ AssertFunction(rdi); |
| 2304 | |
| 2305 | // Calling convention for function specific ConstructStubs require |
| 2306 | // rbx to contain either an AllocationSite or undefined. |
| 2307 | __ LoadRoot(rbx, Heap::kUndefinedValueRootIndex); |
| 2308 | |
| 2309 | // Tail call to the function-specific construct stub (still in the caller |
| 2310 | // context at this point). |
| 2311 | __ movp(rcx, FieldOperand(rdi, JSFunction::kSharedFunctionInfoOffset)); |
| 2312 | __ movp(rcx, FieldOperand(rcx, SharedFunctionInfo::kConstructStubOffset)); |
| 2313 | __ leap(rcx, FieldOperand(rcx, Code::kHeaderSize)); |
| 2314 | __ jmp(rcx); |
| 2315 | } |
| 2316 | |
| 2317 | |
| 2318 | // static |
| 2319 | void Builtins::Generate_ConstructBoundFunction(MacroAssembler* masm) { |
| 2320 | // ----------- S t a t e ------------- |
| 2321 | // -- rax : the number of arguments (not including the receiver) |
| 2322 | // -- rdx : the new target (checked to be a constructor) |
| 2323 | // -- rdi : the constructor to call (checked to be a JSBoundFunction) |
| 2324 | // ----------------------------------- |
| 2325 | __ AssertBoundFunction(rdi); |
| 2326 | |
| 2327 | // Push the [[BoundArguments]] onto the stack. |
| 2328 | Generate_PushBoundArguments(masm); |
| 2329 | |
| 2330 | // Patch new.target to [[BoundTargetFunction]] if new.target equals target. |
| 2331 | { |
| 2332 | Label done; |
| 2333 | __ cmpp(rdi, rdx); |
| 2334 | __ j(not_equal, &done, Label::kNear); |
| 2335 | __ movp(rdx, |
| 2336 | FieldOperand(rdi, JSBoundFunction::kBoundTargetFunctionOffset)); |
| 2337 | __ bind(&done); |
| 2338 | } |
| 2339 | |
| 2340 | // Construct the [[BoundTargetFunction]] via the Construct builtin. |
| 2341 | __ movp(rdi, FieldOperand(rdi, JSBoundFunction::kBoundTargetFunctionOffset)); |
| 2342 | __ Load(rcx, ExternalReference(Builtins::kConstruct, masm->isolate())); |
| 2343 | __ leap(rcx, FieldOperand(rcx, Code::kHeaderSize)); |
| 2344 | __ jmp(rcx); |
| 2345 | } |
| 2346 | |
| 2347 | |
| 2348 | // static |
| 2349 | void Builtins::Generate_ConstructProxy(MacroAssembler* masm) { |
| 2350 | // ----------- S t a t e ------------- |
| 2351 | // -- rax : the number of arguments (not including the receiver) |
| 2352 | // -- rdi : the constructor to call (checked to be a JSProxy) |
| 2353 | // -- rdx : the new target (either the same as the constructor or |
| 2354 | // the JSFunction on which new was invoked initially) |
| 2355 | // ----------------------------------- |
| 2356 | |
| 2357 | // Call into the Runtime for Proxy [[Construct]]. |
| 2358 | __ PopReturnAddressTo(kScratchRegister); |
| 2359 | __ Push(rdi); |
| 2360 | __ Push(rdx); |
| 2361 | __ PushReturnAddressFrom(kScratchRegister); |
| 2362 | // Include the pushed new_target, constructor and the receiver. |
| 2363 | __ addp(rax, Immediate(3)); |
| 2364 | __ JumpToExternalReference( |
| 2365 | ExternalReference(Runtime::kJSProxyConstruct, masm->isolate())); |
| 2366 | } |
| 2367 | |
| 2368 | |
| 2369 | // static |
| 2370 | void Builtins::Generate_Construct(MacroAssembler* masm) { |
| 2371 | // ----------- S t a t e ------------- |
| 2372 | // -- rax : the number of arguments (not including the receiver) |
| 2373 | // -- rdx : the new target (either the same as the constructor or |
| 2374 | // the JSFunction on which new was invoked initially) |
| 2375 | // -- rdi : the constructor to call (can be any Object) |
| 2376 | // ----------------------------------- |
| 2377 | StackArgumentsAccessor args(rsp, rax); |
| 2378 | |
| 2379 | // Check if target is a Smi. |
| 2380 | Label non_constructor; |
| 2381 | __ JumpIfSmi(rdi, &non_constructor, Label::kNear); |
| 2382 | |
| 2383 | // Dispatch based on instance type. |
| 2384 | __ CmpObjectType(rdi, JS_FUNCTION_TYPE, rcx); |
| 2385 | __ j(equal, masm->isolate()->builtins()->ConstructFunction(), |
| 2386 | RelocInfo::CODE_TARGET); |
| 2387 | |
| 2388 | // Check if target has a [[Construct]] internal method. |
| 2389 | __ testb(FieldOperand(rcx, Map::kBitFieldOffset), |
| 2390 | Immediate(1 << Map::kIsConstructor)); |
| 2391 | __ j(zero, &non_constructor, Label::kNear); |
| 2392 | |
| 2393 | // Only dispatch to bound functions after checking whether they are |
| 2394 | // constructors. |
| 2395 | __ CmpInstanceType(rcx, JS_BOUND_FUNCTION_TYPE); |
| 2396 | __ j(equal, masm->isolate()->builtins()->ConstructBoundFunction(), |
| 2397 | RelocInfo::CODE_TARGET); |
| 2398 | |
| 2399 | // Only dispatch to proxies after checking whether they are constructors. |
| 2400 | __ CmpInstanceType(rcx, JS_PROXY_TYPE); |
| 2401 | __ j(equal, masm->isolate()->builtins()->ConstructProxy(), |
| 2402 | RelocInfo::CODE_TARGET); |
| 2403 | |
| 2404 | // Called Construct on an exotic Object with a [[Construct]] internal method. |
| 2405 | { |
| 2406 | // Overwrite the original receiver with the (original) target. |
| 2407 | __ movp(args.GetReceiverOperand(), rdi); |
| 2408 | // Let the "call_as_constructor_delegate" take care of the rest. |
| 2409 | __ LoadNativeContextSlot(Context::CALL_AS_CONSTRUCTOR_DELEGATE_INDEX, rdi); |
| 2410 | __ Jump(masm->isolate()->builtins()->CallFunction(), |
| 2411 | RelocInfo::CODE_TARGET); |
| 2412 | } |
| 2413 | |
| 2414 | // Called Construct on an Object that doesn't have a [[Construct]] internal |
| 2415 | // method. |
| 2416 | __ bind(&non_constructor); |
| 2417 | __ Jump(masm->isolate()->builtins()->ConstructedNonConstructable(), |
| 2418 | RelocInfo::CODE_TARGET); |
| 2419 | } |
| 2420 | |
| 2421 | |
| 2422 | static void CompatibleReceiverCheck(MacroAssembler* masm, Register receiver, |
| 2423 | Register function_template_info, |
| 2424 | Register scratch0, Register scratch1, |
| 2425 | Register scratch2, |
| 2426 | Label* receiver_check_failed) { |
| 2427 | Register signature = scratch0; |
| 2428 | Register map = scratch1; |
| 2429 | Register constructor = scratch2; |
| 2430 | |
| 2431 | // If there is no signature, return the holder. |
| 2432 | __ movp(signature, FieldOperand(function_template_info, |
| 2433 | FunctionTemplateInfo::kSignatureOffset)); |
| 2434 | __ CompareRoot(signature, Heap::kUndefinedValueRootIndex); |
| 2435 | Label receiver_check_passed; |
| 2436 | __ j(equal, &receiver_check_passed, Label::kNear); |
| 2437 | |
| 2438 | // Walk the prototype chain. |
| 2439 | __ movp(map, FieldOperand(receiver, HeapObject::kMapOffset)); |
| 2440 | Label prototype_loop_start; |
| 2441 | __ bind(&prototype_loop_start); |
| 2442 | |
| 2443 | // Get the constructor, if any. |
| 2444 | __ GetMapConstructor(constructor, map, kScratchRegister); |
| 2445 | __ CmpInstanceType(kScratchRegister, JS_FUNCTION_TYPE); |
| 2446 | Label next_prototype; |
| 2447 | __ j(not_equal, &next_prototype, Label::kNear); |
| 2448 | |
| 2449 | // Get the constructor's signature. |
| 2450 | Register type = constructor; |
| 2451 | __ movp(type, |
| 2452 | FieldOperand(constructor, JSFunction::kSharedFunctionInfoOffset)); |
| 2453 | __ movp(type, FieldOperand(type, SharedFunctionInfo::kFunctionDataOffset)); |
| 2454 | |
| 2455 | // Loop through the chain of inheriting function templates. |
| 2456 | Label function_template_loop; |
| 2457 | __ bind(&function_template_loop); |
| 2458 | |
| 2459 | // If the signatures match, we have a compatible receiver. |
| 2460 | __ cmpp(signature, type); |
| 2461 | __ j(equal, &receiver_check_passed, Label::kNear); |
| 2462 | |
| 2463 | // If the current type is not a FunctionTemplateInfo, load the next prototype |
| 2464 | // in the chain. |
| 2465 | __ JumpIfSmi(type, &next_prototype, Label::kNear); |
| 2466 | __ CmpObjectType(type, FUNCTION_TEMPLATE_INFO_TYPE, kScratchRegister); |
| 2467 | __ j(not_equal, &next_prototype, Label::kNear); |
| 2468 | |
| 2469 | // Otherwise load the parent function template and iterate. |
| 2470 | __ movp(type, |
| 2471 | FieldOperand(type, FunctionTemplateInfo::kParentTemplateOffset)); |
| 2472 | __ jmp(&function_template_loop, Label::kNear); |
| 2473 | |
| 2474 | // Load the next prototype. |
| 2475 | __ bind(&next_prototype); |
| 2476 | __ movp(receiver, FieldOperand(map, Map::kPrototypeOffset)); |
| 2477 | // End if the prototype is null or not hidden. |
| 2478 | __ CompareRoot(receiver, Heap::kNullValueRootIndex); |
| 2479 | __ j(equal, receiver_check_failed); |
| 2480 | __ movp(map, FieldOperand(receiver, HeapObject::kMapOffset)); |
| 2481 | __ testq(FieldOperand(map, Map::kBitField3Offset), |
| 2482 | Immediate(Map::IsHiddenPrototype::kMask)); |
| 2483 | __ j(zero, receiver_check_failed); |
| 2484 | // Iterate. |
| 2485 | __ jmp(&prototype_loop_start, Label::kNear); |
| 2486 | |
| 2487 | __ bind(&receiver_check_passed); |
| 2488 | } |
| 2489 | |
| 2490 | |
| 2491 | void Builtins::Generate_HandleFastApiCall(MacroAssembler* masm) { |
| 2492 | // ----------- S t a t e ------------- |
| 2493 | // -- rax : number of arguments (not including the receiver) |
| 2494 | // -- rdi : callee |
| 2495 | // -- rsi : context |
| 2496 | // -- rsp[0] : return address |
| 2497 | // -- rsp[8] : last argument |
| 2498 | // -- ... |
| 2499 | // -- rsp[rax * 8] : first argument |
| 2500 | // -- rsp[(rax + 1) * 8] : receiver |
| 2501 | // ----------------------------------- |
| 2502 | |
| 2503 | StackArgumentsAccessor args(rsp, rax); |
| 2504 | |
| 2505 | // Load the FunctionTemplateInfo. |
| 2506 | __ movp(rbx, FieldOperand(rdi, JSFunction::kSharedFunctionInfoOffset)); |
| 2507 | __ movp(rbx, FieldOperand(rbx, SharedFunctionInfo::kFunctionDataOffset)); |
| 2508 | |
| 2509 | // Do the compatible receiver check. |
| 2510 | Label receiver_check_failed; |
| 2511 | __ movp(rcx, args.GetReceiverOperand()); |
| 2512 | CompatibleReceiverCheck(masm, rcx, rbx, rdx, r8, r9, &receiver_check_failed); |
| 2513 | |
| 2514 | // Get the callback offset from the FunctionTemplateInfo, and jump to the |
| 2515 | // beginning of the code. |
| 2516 | __ movp(rdx, FieldOperand(rbx, FunctionTemplateInfo::kCallCodeOffset)); |
| 2517 | __ movp(rdx, FieldOperand(rdx, CallHandlerInfo::kFastHandlerOffset)); |
| 2518 | __ addp(rdx, Immediate(Code::kHeaderSize - kHeapObjectTag)); |
| 2519 | __ jmp(rdx); |
| 2520 | |
| 2521 | // Compatible receiver check failed: pop return address, arguments and |
| 2522 | // receiver and throw an Illegal Invocation exception. |
| 2523 | __ bind(&receiver_check_failed); |
| 2524 | __ PopReturnAddressTo(rbx); |
| 2525 | __ leap(rax, Operand(rax, times_pointer_size, 1 * kPointerSize)); |
| 2526 | __ addp(rsp, rax); |
| 2527 | __ PushReturnAddressFrom(rbx); |
| 2528 | { |
| 2529 | FrameScope scope(masm, StackFrame::INTERNAL); |
| 2530 | __ TailCallRuntime(Runtime::kThrowIllegalInvocation); |
| 2531 | } |
| 2532 | } |
| 2533 | |
| 2534 | |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 2535 | void Builtins::Generate_OnStackReplacement(MacroAssembler* masm) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2536 | // Lookup the function in the JavaScript frame. |
| 2537 | __ movp(rax, Operand(rbp, JavaScriptFrameConstants::kFunctionOffset)); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 2538 | { |
| 2539 | FrameScope scope(masm, StackFrame::INTERNAL); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2540 | // Pass function as argument. |
| 2541 | __ Push(rax); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 2542 | __ CallRuntime(Runtime::kCompileForOnStackReplacement); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 2543 | } |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 2544 | |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 2545 | Label skip; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2546 | // If the code object is null, just return to the unoptimized code. |
| 2547 | __ cmpp(rax, Immediate(0)); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 2548 | __ j(not_equal, &skip, Label::kNear); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 2549 | __ ret(0); |
| 2550 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2551 | __ bind(&skip); |
| 2552 | |
| 2553 | // Load deoptimization data from the code object. |
| 2554 | __ movp(rbx, Operand(rax, Code::kDeoptimizationDataOffset - kHeapObjectTag)); |
| 2555 | |
| 2556 | // Load the OSR entrypoint offset from the deoptimization data. |
| 2557 | __ SmiToInteger32(rbx, Operand(rbx, FixedArray::OffsetOfElementAt( |
| 2558 | DeoptimizationInputData::kOsrPcOffsetIndex) - kHeapObjectTag)); |
| 2559 | |
| 2560 | // Compute the target address = code_obj + header_size + osr_offset |
| 2561 | __ leap(rax, Operand(rax, rbx, times_1, Code::kHeaderSize - kHeapObjectTag)); |
| 2562 | |
| 2563 | // Overwrite the return address on the stack. |
| 2564 | __ movq(StackOperandForReturnAddress(0), rax); |
| 2565 | |
| 2566 | // And "return" to the OSR entry point of the function. |
| 2567 | __ ret(0); |
| 2568 | } |
| 2569 | |
| 2570 | |
| 2571 | void Builtins::Generate_OsrAfterStackCheck(MacroAssembler* masm) { |
| 2572 | // We check the stack limit as indicator that recompilation might be done. |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 2573 | Label ok; |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 2574 | __ CompareRoot(rsp, Heap::kStackLimitRootIndex); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2575 | __ j(above_equal, &ok); |
| 2576 | { |
| 2577 | FrameScope scope(masm, StackFrame::INTERNAL); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 2578 | __ CallRuntime(Runtime::kStackGuard); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 2579 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2580 | __ jmp(masm->isolate()->builtins()->OnStackReplacement(), |
| 2581 | RelocInfo::CODE_TARGET); |
| 2582 | |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 2583 | __ bind(&ok); |
| 2584 | __ ret(0); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 2585 | } |
| 2586 | |
| 2587 | |
| 2588 | #undef __ |
| 2589 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 2590 | } // namespace internal |
| 2591 | } // namespace v8 |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 2592 | |
| 2593 | #endif // V8_TARGET_ARCH_X64 |