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_ARM |
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/codegen.h" |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 8 | #include "src/debug/debug.h" |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 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" |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 11 | #include "src/runtime/runtime.h" |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 12 | |
| 13 | namespace v8 { |
| 14 | namespace internal { |
| 15 | |
| 16 | |
| 17 | #define __ ACCESS_MASM(masm) |
| 18 | |
| 19 | |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 20 | void Builtins::Generate_Adaptor(MacroAssembler* masm, |
| 21 | CFunctionId id, |
| 22 | BuiltinExtraArguments extra_args) { |
| 23 | // ----------- S t a t e ------------- |
| 24 | // -- r0 : number of arguments excluding receiver |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 25 | // -- r1 : target |
| 26 | // -- r3 : new.target |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 27 | // -- sp[0] : last argument |
| 28 | // -- ... |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 29 | // -- sp[4 * (argc - 1)] : first argument |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 30 | // -- sp[4 * argc] : receiver |
| 31 | // ----------------------------------- |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 32 | __ AssertFunction(r1); |
| 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 | __ ldr(cp, FieldMemOperand(r1, JSFunction::kContextOffset)); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 39 | |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 40 | // Insert extra arguments. |
| 41 | int num_extra_args = 0; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 42 | switch (extra_args) { |
| 43 | case BuiltinExtraArguments::kTarget: |
| 44 | __ Push(r1); |
| 45 | ++num_extra_args; |
| 46 | break; |
| 47 | case BuiltinExtraArguments::kNewTarget: |
| 48 | __ Push(r3); |
| 49 | ++num_extra_args; |
| 50 | break; |
| 51 | case BuiltinExtraArguments::kTargetAndNewTarget: |
| 52 | __ Push(r1, r3); |
| 53 | num_extra_args += 2; |
| 54 | break; |
| 55 | case BuiltinExtraArguments::kNone: |
| 56 | break; |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 57 | } |
| 58 | |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 59 | // JumpToExternalReference expects r0 to contain the number of arguments |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 60 | // including the receiver and the extra arguments. |
| 61 | __ add(r0, r0, Operand(num_extra_args + 1)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 62 | |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 63 | __ JumpToExternalReference(ExternalReference(id, masm->isolate())); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 64 | } |
| 65 | |
| 66 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 67 | // Load the built-in InternalArray function from the current context. |
| 68 | static void GenerateLoadInternalArrayFunction(MacroAssembler* masm, |
| 69 | Register result) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 70 | // Load the InternalArray function from the current native context. |
| 71 | __ LoadNativeContextSlot(Context::INTERNAL_ARRAY_FUNCTION_INDEX, result); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 72 | } |
| 73 | |
| 74 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 75 | // Load the built-in Array function from the current context. |
| 76 | static void GenerateLoadArrayFunction(MacroAssembler* masm, Register result) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 77 | // Load the Array function from the current native context. |
| 78 | __ LoadNativeContextSlot(Context::ARRAY_FUNCTION_INDEX, result); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 79 | } |
| 80 | |
| 81 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 82 | void Builtins::Generate_InternalArrayCode(MacroAssembler* masm) { |
| 83 | // ----------- S t a t e ------------- |
| 84 | // -- r0 : number of arguments |
| 85 | // -- lr : return address |
| 86 | // -- sp[...]: constructor arguments |
| 87 | // ----------------------------------- |
| 88 | Label generic_array_code, one_or_more_arguments, two_or_more_arguments; |
| 89 | |
| 90 | // Get the InternalArray function. |
| 91 | GenerateLoadInternalArrayFunction(masm, r1); |
| 92 | |
| 93 | if (FLAG_debug_code) { |
| 94 | // Initial map for the builtin InternalArray functions should be maps. |
| 95 | __ ldr(r2, FieldMemOperand(r1, JSFunction::kPrototypeOrInitialMapOffset)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 96 | __ SmiTst(r2); |
| 97 | __ Assert(ne, kUnexpectedInitialMapForInternalArrayFunction); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 98 | __ CompareObjectType(r2, r3, r4, MAP_TYPE); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 99 | __ Assert(eq, kUnexpectedInitialMapForInternalArrayFunction); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 100 | } |
| 101 | |
| 102 | // Run the native code for the InternalArray function called as a normal |
| 103 | // function. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 104 | // tail call a stub |
| 105 | InternalArrayConstructorStub stub(masm->isolate()); |
| 106 | __ TailCallStub(&stub); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 107 | } |
| 108 | |
| 109 | |
| 110 | void Builtins::Generate_ArrayCode(MacroAssembler* masm) { |
| 111 | // ----------- S t a t e ------------- |
| 112 | // -- r0 : number of arguments |
| 113 | // -- lr : return address |
| 114 | // -- sp[...]: constructor arguments |
| 115 | // ----------------------------------- |
| 116 | Label generic_array_code, one_or_more_arguments, two_or_more_arguments; |
| 117 | |
| 118 | // Get the Array function. |
| 119 | GenerateLoadArrayFunction(masm, r1); |
| 120 | |
| 121 | if (FLAG_debug_code) { |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 122 | // Initial map for the builtin Array functions should be maps. |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 123 | __ ldr(r2, FieldMemOperand(r1, JSFunction::kPrototypeOrInitialMapOffset)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 124 | __ SmiTst(r2); |
| 125 | __ Assert(ne, kUnexpectedInitialMapForArrayFunction); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 126 | __ CompareObjectType(r2, r3, r4, MAP_TYPE); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 127 | __ Assert(eq, kUnexpectedInitialMapForArrayFunction); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 128 | } |
| 129 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 130 | __ mov(r3, r1); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 131 | // 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] | 132 | // tail call a stub |
| 133 | __ LoadRoot(r2, Heap::kUndefinedValueRootIndex); |
| 134 | ArrayConstructorStub stub(masm->isolate()); |
| 135 | __ TailCallStub(&stub); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 136 | } |
| 137 | |
| 138 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 139 | // static |
| 140 | void Builtins::Generate_NumberConstructor(MacroAssembler* masm) { |
Shimeng (Simon) Wang | 8a31eba | 2010-12-06 19:01:33 -0800 | [diff] [blame] | 141 | // ----------- S t a t e ------------- |
| 142 | // -- r0 : number of arguments |
| 143 | // -- r1 : constructor function |
| 144 | // -- lr : return address |
| 145 | // -- sp[(argc - n - 1) * 4] : arg[n] (zero based) |
| 146 | // -- sp[argc * 4] : receiver |
| 147 | // ----------------------------------- |
Shimeng (Simon) Wang | 8a31eba | 2010-12-06 19:01:33 -0800 | [diff] [blame] | 148 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 149 | // 1. Load the first argument into r0 and get rid of the rest (including the |
| 150 | // receiver). |
| 151 | Label no_arguments; |
| 152 | { |
| 153 | __ sub(r0, r0, Operand(1), SetCC); |
| 154 | __ b(lo, &no_arguments); |
| 155 | __ ldr(r0, MemOperand(sp, r0, LSL, kPointerSizeLog2, PreIndex)); |
| 156 | __ Drop(2); |
Shimeng (Simon) Wang | 8a31eba | 2010-12-06 19:01:33 -0800 | [diff] [blame] | 157 | } |
| 158 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 159 | // 2a. Convert the first argument to a number. |
| 160 | ToNumberStub stub(masm->isolate()); |
| 161 | __ TailCallStub(&stub); |
Shimeng (Simon) Wang | 8a31eba | 2010-12-06 19:01:33 -0800 | [diff] [blame] | 162 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 163 | // 2b. No arguments, return +0. |
| 164 | __ bind(&no_arguments); |
| 165 | __ Move(r0, Smi::FromInt(0)); |
| 166 | __ Ret(1); |
| 167 | } |
Shimeng (Simon) Wang | 8a31eba | 2010-12-06 19:01:33 -0800 | [diff] [blame] | 168 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 169 | |
| 170 | // static |
| 171 | void Builtins::Generate_NumberConstructor_ConstructStub(MacroAssembler* masm) { |
Shimeng (Simon) Wang | 8a31eba | 2010-12-06 19:01:33 -0800 | [diff] [blame] | 172 | // ----------- S t a t e ------------- |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 173 | // -- r0 : number of arguments |
| 174 | // -- r1 : constructor function |
| 175 | // -- r3 : new target |
| 176 | // -- lr : return address |
| 177 | // -- sp[(argc - n - 1) * 4] : arg[n] (zero based) |
| 178 | // -- sp[argc * 4] : receiver |
Shimeng (Simon) Wang | 8a31eba | 2010-12-06 19:01:33 -0800 | [diff] [blame] | 179 | // ----------------------------------- |
| 180 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 181 | // 1. Make sure we operate in the context of the called function. |
| 182 | __ ldr(cp, FieldMemOperand(r1, JSFunction::kContextOffset)); |
Shimeng (Simon) Wang | 8a31eba | 2010-12-06 19:01:33 -0800 | [diff] [blame] | 183 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 184 | // 2. Load the first argument into r2 and get rid of the rest (including the |
| 185 | // receiver). |
| 186 | { |
| 187 | Label no_arguments, done; |
| 188 | __ sub(r0, r0, Operand(1), SetCC); |
| 189 | __ b(lo, &no_arguments); |
| 190 | __ ldr(r2, MemOperand(sp, r0, LSL, kPointerSizeLog2, PreIndex)); |
| 191 | __ Drop(2); |
| 192 | __ b(&done); |
| 193 | __ bind(&no_arguments); |
| 194 | __ Move(r2, Smi::FromInt(0)); |
| 195 | __ Drop(1); |
| 196 | __ bind(&done); |
Shimeng (Simon) Wang | 8a31eba | 2010-12-06 19:01:33 -0800 | [diff] [blame] | 197 | } |
Shimeng (Simon) Wang | 8a31eba | 2010-12-06 19:01:33 -0800 | [diff] [blame] | 198 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 199 | // 3. Make sure r2 is a number. |
| 200 | { |
| 201 | Label done_convert; |
| 202 | __ JumpIfSmi(r2, &done_convert); |
| 203 | __ CompareObjectType(r2, r4, r4, HEAP_NUMBER_TYPE); |
| 204 | __ b(eq, &done_convert); |
| 205 | { |
| 206 | FrameAndConstantPoolScope scope(masm, StackFrame::INTERNAL); |
| 207 | __ Push(r1, r3); |
| 208 | __ Move(r0, r2); |
| 209 | ToNumberStub stub(masm->isolate()); |
| 210 | __ CallStub(&stub); |
| 211 | __ Move(r2, r0); |
| 212 | __ Pop(r1, r3); |
| 213 | } |
| 214 | __ bind(&done_convert); |
| 215 | } |
Shimeng (Simon) Wang | 8a31eba | 2010-12-06 19:01:33 -0800 | [diff] [blame] | 216 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 217 | // 4. Check if new target and constructor differ. |
| 218 | Label new_object; |
| 219 | __ cmp(r1, r3); |
| 220 | __ b(ne, &new_object); |
Shimeng (Simon) Wang | 8a31eba | 2010-12-06 19:01:33 -0800 | [diff] [blame] | 221 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 222 | // 5. Allocate a JSValue wrapper for the number. |
| 223 | __ AllocateJSValue(r0, r1, r2, r4, r5, &new_object); |
Shimeng (Simon) Wang | 8a31eba | 2010-12-06 19:01:33 -0800 | [diff] [blame] | 224 | __ Ret(); |
| 225 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 226 | // 6. Fallback to the runtime to create new object. |
| 227 | __ bind(&new_object); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 228 | { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 229 | FrameAndConstantPoolScope scope(masm, StackFrame::INTERNAL); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 230 | __ Push(r2, r1, r3); // first argument, constructor, new target |
| 231 | __ CallRuntime(Runtime::kNewObject); |
| 232 | __ Pop(r2); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 233 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 234 | __ str(r2, FieldMemOperand(r0, JSValue::kValueOffset)); |
| 235 | __ Ret(); |
| 236 | } |
Shimeng (Simon) Wang | 8a31eba | 2010-12-06 19:01:33 -0800 | [diff] [blame] | 237 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 238 | |
| 239 | // static |
| 240 | void Builtins::Generate_StringConstructor(MacroAssembler* masm) { |
| 241 | // ----------- S t a t e ------------- |
| 242 | // -- r0 : number of arguments |
| 243 | // -- r1 : constructor function |
| 244 | // -- lr : return address |
| 245 | // -- sp[(argc - n - 1) * 4] : arg[n] (zero based) |
| 246 | // -- sp[argc * 4] : receiver |
| 247 | // ----------------------------------- |
| 248 | |
| 249 | // 1. Load the first argument into r0 and get rid of the rest (including the |
| 250 | // receiver). |
| 251 | Label no_arguments; |
| 252 | { |
| 253 | __ sub(r0, r0, Operand(1), SetCC); |
| 254 | __ b(lo, &no_arguments); |
| 255 | __ ldr(r0, MemOperand(sp, r0, LSL, kPointerSizeLog2, PreIndex)); |
| 256 | __ Drop(2); |
| 257 | } |
| 258 | |
| 259 | // 2a. At least one argument, return r0 if it's a string, otherwise |
| 260 | // dispatch to appropriate conversion. |
| 261 | Label to_string, symbol_descriptive_string; |
| 262 | { |
| 263 | __ JumpIfSmi(r0, &to_string); |
| 264 | STATIC_ASSERT(FIRST_NONSTRING_TYPE == SYMBOL_TYPE); |
| 265 | __ CompareObjectType(r0, r1, r1, FIRST_NONSTRING_TYPE); |
| 266 | __ b(hi, &to_string); |
| 267 | __ b(eq, &symbol_descriptive_string); |
| 268 | __ Ret(); |
| 269 | } |
| 270 | |
| 271 | // 2b. No arguments, return the empty string (and pop the receiver). |
Shimeng (Simon) Wang | 8a31eba | 2010-12-06 19:01:33 -0800 | [diff] [blame] | 272 | __ bind(&no_arguments); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 273 | { |
| 274 | __ LoadRoot(r0, Heap::kempty_stringRootIndex); |
| 275 | __ Ret(1); |
| 276 | } |
Shimeng (Simon) Wang | 8a31eba | 2010-12-06 19:01:33 -0800 | [diff] [blame] | 277 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 278 | // 3a. Convert r0 to a string. |
| 279 | __ bind(&to_string); |
| 280 | { |
| 281 | ToStringStub stub(masm->isolate()); |
| 282 | __ TailCallStub(&stub); |
| 283 | } |
| 284 | |
| 285 | // 3b. Convert symbol in r0 to a string. |
| 286 | __ bind(&symbol_descriptive_string); |
| 287 | { |
| 288 | __ Push(r0); |
| 289 | __ TailCallRuntime(Runtime::kSymbolDescriptiveString); |
| 290 | } |
| 291 | } |
| 292 | |
| 293 | |
| 294 | // static |
| 295 | void Builtins::Generate_StringConstructor_ConstructStub(MacroAssembler* masm) { |
| 296 | // ----------- S t a t e ------------- |
| 297 | // -- r0 : number of arguments |
| 298 | // -- r1 : constructor function |
| 299 | // -- r3 : new target |
| 300 | // -- lr : return address |
| 301 | // -- sp[(argc - n - 1) * 4] : arg[n] (zero based) |
| 302 | // -- sp[argc * 4] : receiver |
| 303 | // ----------------------------------- |
| 304 | |
| 305 | // 1. Make sure we operate in the context of the called function. |
| 306 | __ ldr(cp, FieldMemOperand(r1, JSFunction::kContextOffset)); |
| 307 | |
| 308 | // 2. Load the first argument into r2 and get rid of the rest (including the |
| 309 | // receiver). |
| 310 | { |
| 311 | Label no_arguments, done; |
| 312 | __ sub(r0, r0, Operand(1), SetCC); |
| 313 | __ b(lo, &no_arguments); |
| 314 | __ ldr(r2, MemOperand(sp, r0, LSL, kPointerSizeLog2, PreIndex)); |
| 315 | __ Drop(2); |
| 316 | __ b(&done); |
| 317 | __ bind(&no_arguments); |
| 318 | __ LoadRoot(r2, Heap::kempty_stringRootIndex); |
| 319 | __ Drop(1); |
| 320 | __ bind(&done); |
| 321 | } |
| 322 | |
| 323 | // 3. Make sure r2 is a string. |
| 324 | { |
| 325 | Label convert, done_convert; |
| 326 | __ JumpIfSmi(r2, &convert); |
| 327 | __ CompareObjectType(r2, r4, r4, FIRST_NONSTRING_TYPE); |
| 328 | __ b(lo, &done_convert); |
| 329 | __ bind(&convert); |
| 330 | { |
| 331 | FrameAndConstantPoolScope scope(masm, StackFrame::INTERNAL); |
| 332 | ToStringStub stub(masm->isolate()); |
| 333 | __ Push(r1, r3); |
| 334 | __ Move(r0, r2); |
| 335 | __ CallStub(&stub); |
| 336 | __ Move(r2, r0); |
| 337 | __ Pop(r1, r3); |
| 338 | } |
| 339 | __ bind(&done_convert); |
| 340 | } |
| 341 | |
| 342 | // 4. Check if new target and constructor differ. |
| 343 | Label new_object; |
| 344 | __ cmp(r1, r3); |
| 345 | __ b(ne, &new_object); |
| 346 | |
| 347 | // 5. Allocate a JSValue wrapper for the string. |
| 348 | __ AllocateJSValue(r0, r1, r2, r4, r5, &new_object); |
| 349 | __ Ret(); |
| 350 | |
| 351 | // 6. Fallback to the runtime to create new object. |
| 352 | __ bind(&new_object); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 353 | { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 354 | FrameAndConstantPoolScope scope(masm, StackFrame::INTERNAL); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 355 | __ Push(r2, r1, r3); // first argument, constructor, new target |
| 356 | __ CallRuntime(Runtime::kNewObject); |
| 357 | __ Pop(r2); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 358 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 359 | __ str(r2, FieldMemOperand(r0, JSValue::kValueOffset)); |
Shimeng (Simon) Wang | 8a31eba | 2010-12-06 19:01:33 -0800 | [diff] [blame] | 360 | __ Ret(); |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 361 | } |
| 362 | |
| 363 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 364 | static void CallRuntimePassFunction( |
| 365 | MacroAssembler* masm, Runtime::FunctionId function_id) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 366 | // ----------- S t a t e ------------- |
| 367 | // -- r1 : target function (preserved for callee) |
| 368 | // -- r3 : new target (preserved for callee) |
| 369 | // ----------------------------------- |
| 370 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 371 | FrameAndConstantPoolScope scope(masm, StackFrame::INTERNAL); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 372 | // Push a copy of the target function and the new target. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 373 | __ push(r1); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 374 | __ push(r3); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 375 | // Push function as parameter to the runtime call. |
| 376 | __ Push(r1); |
| 377 | |
| 378 | __ CallRuntime(function_id, 1); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 379 | // Restore target function and new target. |
| 380 | __ pop(r3); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 381 | __ pop(r1); |
| 382 | } |
| 383 | |
| 384 | |
| 385 | static void GenerateTailCallToSharedCode(MacroAssembler* masm) { |
| 386 | __ ldr(r2, FieldMemOperand(r1, JSFunction::kSharedFunctionInfoOffset)); |
| 387 | __ ldr(r2, FieldMemOperand(r2, SharedFunctionInfo::kCodeOffset)); |
| 388 | __ add(r2, r2, Operand(Code::kHeaderSize - kHeapObjectTag)); |
| 389 | __ Jump(r2); |
| 390 | } |
| 391 | |
| 392 | |
| 393 | static void GenerateTailCallToReturnedCode(MacroAssembler* masm) { |
| 394 | __ add(r0, r0, Operand(Code::kHeaderSize - kHeapObjectTag)); |
| 395 | __ Jump(r0); |
| 396 | } |
| 397 | |
| 398 | |
| 399 | void Builtins::Generate_InOptimizationQueue(MacroAssembler* masm) { |
| 400 | // Checking whether the queued function is ready for install is optional, |
| 401 | // since we come across interrupts and stack checks elsewhere. However, |
| 402 | // not checking may delay installing ready functions, and always checking |
| 403 | // would be quite expensive. A good compromise is to first check against |
| 404 | // stack limit as a cue for an interrupt signal. |
| 405 | Label ok; |
| 406 | __ LoadRoot(ip, Heap::kStackLimitRootIndex); |
| 407 | __ cmp(sp, Operand(ip)); |
| 408 | __ b(hs, &ok); |
| 409 | |
| 410 | CallRuntimePassFunction(masm, Runtime::kTryInstallOptimizedCode); |
| 411 | GenerateTailCallToReturnedCode(masm); |
| 412 | |
| 413 | __ bind(&ok); |
| 414 | GenerateTailCallToSharedCode(masm); |
| 415 | } |
| 416 | |
| 417 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 418 | static void Generate_JSConstructStubHelper(MacroAssembler* masm, |
| 419 | bool is_api_function, |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 420 | bool create_implicit_receiver) { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 421 | // ----------- S t a t e ------------- |
| 422 | // -- r0 : number of arguments |
| 423 | // -- r1 : constructor function |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 424 | // -- r2 : allocation site or undefined |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 425 | // -- r3 : new target |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 426 | // -- lr : return address |
| 427 | // -- sp[...]: constructor arguments |
| 428 | // ----------------------------------- |
| 429 | |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 430 | Isolate* isolate = masm->isolate(); |
| 431 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 432 | // Enter a construct frame. |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 433 | { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 434 | FrameAndConstantPoolScope scope(masm, StackFrame::CONSTRUCT); |
| 435 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 436 | // Preserve the incoming parameters on the stack. |
| 437 | __ AssertUndefinedOrAllocationSite(r2, r4); |
| 438 | __ push(r2); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 439 | __ SmiTag(r0); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 440 | __ push(r0); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 441 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 442 | if (create_implicit_receiver) { |
| 443 | // Try to allocate the object without transitioning into C code. If any of |
| 444 | // the preconditions is not met, the code bails out to the runtime call. |
| 445 | Label rt_call, allocated; |
| 446 | if (FLAG_inline_new) { |
| 447 | // Verify that the new target is a JSFunction. |
| 448 | __ CompareObjectType(r3, r5, r4, JS_FUNCTION_TYPE); |
| 449 | __ b(ne, &rt_call); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 450 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 451 | // Load the initial map and verify that it is in fact a map. |
| 452 | // r3: new target |
| 453 | __ ldr(r2, |
| 454 | FieldMemOperand(r3, JSFunction::kPrototypeOrInitialMapOffset)); |
| 455 | __ JumpIfSmi(r2, &rt_call); |
| 456 | __ CompareObjectType(r2, r5, r4, MAP_TYPE); |
| 457 | __ b(ne, &rt_call); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 458 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 459 | // Fall back to runtime if the expected base constructor and base |
| 460 | // constructor differ. |
| 461 | __ ldr(r5, FieldMemOperand(r2, Map::kConstructorOrBackPointerOffset)); |
| 462 | __ cmp(r1, r5); |
| 463 | __ b(ne, &rt_call); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 464 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 465 | // Check that the constructor is not constructing a JSFunction (see |
| 466 | // comments in Runtime_NewObject in runtime.cc). In which case the |
| 467 | // initial map's instance type would be JS_FUNCTION_TYPE. |
| 468 | // r1: constructor function |
| 469 | // r2: initial map |
| 470 | // r3: new target |
| 471 | __ CompareInstanceType(r2, r5, JS_FUNCTION_TYPE); |
| 472 | __ b(eq, &rt_call); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 473 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 474 | // Now allocate the JSObject on the heap. |
| 475 | // r1: constructor function |
| 476 | // r2: initial map |
| 477 | // r3: new target |
| 478 | __ ldrb(r9, FieldMemOperand(r2, Map::kInstanceSizeOffset)); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 479 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 480 | __ Allocate(r9, r4, r9, r6, &rt_call, SIZE_IN_WORDS); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 481 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 482 | // Allocated the JSObject, now initialize the fields. Map is set to |
| 483 | // initial map and properties and elements are set to empty fixed array. |
| 484 | // r1: constructor function |
| 485 | // r2: initial map |
| 486 | // r3: new target |
| 487 | // r4: JSObject (not HeapObject tagged - the actual address). |
| 488 | // r9: start of next object |
| 489 | __ LoadRoot(r6, Heap::kEmptyFixedArrayRootIndex); |
| 490 | __ mov(r5, r4); |
| 491 | STATIC_ASSERT(0 * kPointerSize == JSObject::kMapOffset); |
| 492 | __ str(r2, MemOperand(r5, kPointerSize, PostIndex)); |
| 493 | STATIC_ASSERT(1 * kPointerSize == JSObject::kPropertiesOffset); |
| 494 | __ str(r6, MemOperand(r5, kPointerSize, PostIndex)); |
| 495 | STATIC_ASSERT(2 * kPointerSize == JSObject::kElementsOffset); |
| 496 | __ str(r6, MemOperand(r5, kPointerSize, PostIndex)); |
| 497 | STATIC_ASSERT(3 * kPointerSize == JSObject::kHeaderSize); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 498 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 499 | // Add the object tag to make the JSObject real, so that we can continue |
| 500 | // and jump into the continuation code at any time from now on. |
| 501 | __ add(r4, r4, Operand(kHeapObjectTag)); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 502 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 503 | // Fill all the in-object properties with the appropriate filler. |
| 504 | // r4: JSObject (tagged) |
| 505 | // r5: First in-object property of JSObject (not tagged) |
| 506 | __ LoadRoot(r6, Heap::kUndefinedValueRootIndex); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 507 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 508 | if (!is_api_function) { |
| 509 | Label no_inobject_slack_tracking; |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 510 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 511 | // Check if slack tracking is enabled. |
| 512 | MemOperand bit_field3 = FieldMemOperand(r2, Map::kBitField3Offset); |
| 513 | // Check if slack tracking is enabled. |
| 514 | __ ldr(r0, bit_field3); |
| 515 | __ DecodeField<Map::ConstructionCounter>(ip, r0); |
| 516 | // ip: slack tracking counter |
| 517 | __ cmp(ip, Operand(Map::kSlackTrackingCounterEnd)); |
| 518 | __ b(lt, &no_inobject_slack_tracking); |
| 519 | __ push(ip); // Save allocation count value. |
| 520 | // Decrease generous allocation count. |
| 521 | __ sub(r0, r0, Operand(1 << Map::ConstructionCounter::kShift)); |
| 522 | __ str(r0, bit_field3); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 523 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 524 | // Allocate object with a slack. |
| 525 | __ ldr(r0, FieldMemOperand(r2, Map::kInstanceAttributesOffset)); |
| 526 | __ Ubfx(r0, r0, Map::kUnusedPropertyFieldsByte * kBitsPerByte, |
| 527 | kBitsPerByte); |
| 528 | __ sub(r0, r9, Operand(r0, LSL, kPointerSizeLog2)); |
| 529 | // r0: offset of first field after pre-allocated fields |
| 530 | if (FLAG_debug_code) { |
| 531 | __ cmp(r5, r0); |
| 532 | __ Assert(le, kUnexpectedNumberOfPreAllocatedPropertyFields); |
| 533 | } |
| 534 | __ InitializeFieldsWithFiller(r5, r0, r6); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 535 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 536 | // To allow truncation fill the remaining fields with one pointer |
| 537 | // filler map. |
| 538 | __ LoadRoot(r6, Heap::kOnePointerFillerMapRootIndex); |
| 539 | __ InitializeFieldsWithFiller(r5, r9, r6); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 540 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 541 | __ pop(r0); // Restore allocation count value before decreasing. |
| 542 | __ cmp(r0, Operand(Map::kSlackTrackingCounterEnd)); |
| 543 | __ b(ne, &allocated); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 544 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 545 | // Push the constructor, new_target and the object to the stack, |
| 546 | // and then the initial map as an argument to the runtime call. |
| 547 | __ Push(r1, r3, r4, r2); |
| 548 | __ CallRuntime(Runtime::kFinalizeInstanceSize); |
| 549 | __ Pop(r1, r3, r4); |
| 550 | |
| 551 | // Continue with JSObject being successfully allocated |
| 552 | // r1: constructor function |
| 553 | // r3: new target |
| 554 | // r4: JSObject |
| 555 | __ jmp(&allocated); |
| 556 | |
| 557 | __ bind(&no_inobject_slack_tracking); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 558 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 559 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 560 | __ InitializeFieldsWithFiller(r5, r9, r6); |
| 561 | |
| 562 | // Continue with JSObject being successfully allocated |
| 563 | // r1: constructor function |
| 564 | // r3: new target |
| 565 | // r4: JSObject |
| 566 | __ jmp(&allocated); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 567 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 568 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 569 | // Allocate the new receiver object using the runtime call. |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 570 | // r1: constructor function |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 571 | // r3: new target |
| 572 | __ bind(&rt_call); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 573 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 574 | // Push the constructor and new_target twice, second pair as arguments |
| 575 | // to the runtime call. |
| 576 | __ Push(r1, r3); |
| 577 | __ Push(r1, r3); // constructor function, new target |
| 578 | __ CallRuntime(Runtime::kNewObject); |
| 579 | __ mov(r4, r0); |
| 580 | __ Pop(r1, r3); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 581 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 582 | // Receiver for constructor call allocated. |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 583 | // r1: constructor function |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 584 | // r3: new target |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 585 | // r4: JSObject |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 586 | __ bind(&allocated); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 587 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 588 | // Retrieve smi-tagged arguments count from the stack. |
| 589 | __ ldr(r0, MemOperand(sp)); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 590 | } |
| 591 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 592 | __ SmiUntag(r0); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 593 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 594 | if (create_implicit_receiver) { |
| 595 | // Push the allocated receiver to the stack. We need two copies |
| 596 | // because we may have to return the original one and the calling |
| 597 | // conventions dictate that the called function pops the receiver. |
| 598 | __ push(r4); |
| 599 | __ push(r4); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 600 | } else { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 601 | __ PushRoot(Heap::kTheHoleValueRootIndex); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 602 | } |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame] | 603 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 604 | // Set up pointer to last argument. |
| 605 | __ add(r2, fp, Operand(StandardFrameConstants::kCallerSPOffset)); |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame] | 606 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 607 | // Copy arguments and receiver to the expression stack. |
| 608 | // r0: number of arguments |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame] | 609 | // r1: constructor function |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 610 | // r2: address of last argument (caller sp) |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 611 | // r3: new target |
| 612 | // r4: number of arguments (smi-tagged) |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 613 | // sp[0]: receiver |
| 614 | // sp[1]: receiver |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 615 | // sp[2]: number of arguments (smi-tagged) |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 616 | Label loop, entry; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 617 | __ SmiTag(r4, r0); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 618 | __ b(&entry); |
| 619 | __ bind(&loop); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 620 | __ ldr(ip, MemOperand(r2, r4, LSL, kPointerSizeLog2 - 1)); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 621 | __ push(ip); |
| 622 | __ bind(&entry); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 623 | __ sub(r4, r4, Operand(2), SetCC); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 624 | __ b(ge, &loop); |
| 625 | |
| 626 | // Call the function. |
| 627 | // r0: number of arguments |
| 628 | // r1: constructor function |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 629 | // r3: new target |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 630 | if (is_api_function) { |
| 631 | __ ldr(cp, FieldMemOperand(r1, JSFunction::kContextOffset)); |
| 632 | Handle<Code> code = |
| 633 | masm->isolate()->builtins()->HandleApiCallConstruct(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 634 | __ Call(code, RelocInfo::CODE_TARGET); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 635 | } else { |
| 636 | ParameterCount actual(r0); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 637 | __ InvokeFunction(r1, r3, actual, CALL_FUNCTION, |
| 638 | CheckDebugStepCallWrapper()); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 639 | } |
| 640 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 641 | // Store offset of return address for deoptimizer. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 642 | if (create_implicit_receiver && !is_api_function) { |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 643 | masm->isolate()->heap()->SetConstructStubDeoptPCOffset(masm->pc_offset()); |
| 644 | } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 645 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 646 | // Restore context from the frame. |
| 647 | // r0: result |
| 648 | // sp[0]: receiver |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 649 | // sp[1]: number of arguments (smi-tagged) |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 650 | __ ldr(cp, MemOperand(fp, StandardFrameConstants::kContextOffset)); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 651 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 652 | if (create_implicit_receiver) { |
| 653 | // If the result is an object (in the ECMA sense), we should get rid |
| 654 | // of the receiver and use the result; see ECMA-262 section 13.2.2-7 |
| 655 | // on page 74. |
| 656 | Label use_receiver, exit; |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 657 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 658 | // If the result is a smi, it is *not* an object in the ECMA sense. |
| 659 | // r0: result |
| 660 | // sp[0]: receiver |
| 661 | // sp[1]: number of arguments (smi-tagged) |
| 662 | __ JumpIfSmi(r0, &use_receiver); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 663 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 664 | // If the type of the result (stored in its map) is less than |
| 665 | // FIRST_JS_RECEIVER_TYPE, it is not an object in the ECMA sense. |
| 666 | __ CompareObjectType(r0, r1, r3, FIRST_JS_RECEIVER_TYPE); |
| 667 | __ b(ge, &exit); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 668 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 669 | // Throw away the result of the constructor invocation and use the |
| 670 | // on-stack receiver as the result. |
| 671 | __ bind(&use_receiver); |
| 672 | __ ldr(r0, MemOperand(sp)); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 673 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 674 | // Remove receiver from the stack, remove caller arguments, and |
| 675 | // return. |
| 676 | __ bind(&exit); |
| 677 | // r0: result |
| 678 | // sp[0]: receiver (newly allocated object) |
| 679 | // sp[1]: number of arguments (smi-tagged) |
| 680 | __ ldr(r1, MemOperand(sp, 1 * kPointerSize)); |
| 681 | } else { |
| 682 | __ ldr(r1, MemOperand(sp)); |
| 683 | } |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 684 | |
| 685 | // Leave construct frame. |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 686 | } |
| 687 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 688 | __ add(sp, sp, Operand(r1, LSL, kPointerSizeLog2 - 1)); |
| 689 | __ add(sp, sp, Operand(kPointerSize)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 690 | if (create_implicit_receiver) { |
| 691 | __ IncrementCounter(isolate->counters()->constructed_objects(), 1, r1, r2); |
| 692 | } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 693 | __ Jump(lr); |
| 694 | } |
| 695 | |
| 696 | |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 697 | void Builtins::Generate_JSConstructStubGeneric(MacroAssembler* masm) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 698 | Generate_JSConstructStubHelper(masm, false, true); |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 699 | } |
| 700 | |
| 701 | |
| 702 | void Builtins::Generate_JSConstructStubApi(MacroAssembler* masm) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 703 | Generate_JSConstructStubHelper(masm, true, true); |
| 704 | } |
| 705 | |
| 706 | |
| 707 | void Builtins::Generate_JSBuiltinsConstructStub(MacroAssembler* masm) { |
| 708 | Generate_JSConstructStubHelper(masm, false, false); |
| 709 | } |
| 710 | |
| 711 | |
| 712 | void Builtins::Generate_ConstructedNonConstructable(MacroAssembler* masm) { |
| 713 | FrameScope scope(masm, StackFrame::INTERNAL); |
| 714 | __ push(r1); |
| 715 | __ CallRuntime(Runtime::kThrowConstructedNonConstructable); |
| 716 | } |
| 717 | |
| 718 | |
| 719 | enum IsTagged { kArgcIsSmiTagged, kArgcIsUntaggedInt }; |
| 720 | |
| 721 | |
| 722 | // Clobbers r2; preserves all other registers. |
| 723 | static void Generate_CheckStackOverflow(MacroAssembler* masm, Register argc, |
| 724 | IsTagged argc_is_tagged) { |
| 725 | // Check the stack for overflow. We are not trying to catch |
| 726 | // interruptions (e.g. debug break and preemption) here, so the "real stack |
| 727 | // limit" is checked. |
| 728 | Label okay; |
| 729 | __ LoadRoot(r2, Heap::kRealStackLimitRootIndex); |
| 730 | // Make r2 the space we have left. The stack might already be overflowed |
| 731 | // here which will cause r2 to become negative. |
| 732 | __ sub(r2, sp, r2); |
| 733 | // Check if the arguments will overflow the stack. |
| 734 | if (argc_is_tagged == kArgcIsSmiTagged) { |
| 735 | __ cmp(r2, Operand::PointerOffsetFromSmiKey(argc)); |
| 736 | } else { |
| 737 | DCHECK(argc_is_tagged == kArgcIsUntaggedInt); |
| 738 | __ cmp(r2, Operand(argc, LSL, kPointerSizeLog2)); |
| 739 | } |
| 740 | __ b(gt, &okay); // Signed comparison. |
| 741 | |
| 742 | // Out of stack space. |
| 743 | __ CallRuntime(Runtime::kThrowStackOverflow); |
| 744 | |
| 745 | __ bind(&okay); |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 746 | } |
| 747 | |
| 748 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 749 | static void Generate_JSEntryTrampolineHelper(MacroAssembler* masm, |
| 750 | bool is_construct) { |
| 751 | // Called from Generate_JS_Entry |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 752 | // r0: new.target |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 753 | // r1: function |
| 754 | // r2: receiver |
| 755 | // r3: argc |
| 756 | // r4: argv |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 757 | // r5-r6, r8 (if !FLAG_enable_embedded_constant_pool) and cp may be clobbered |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 758 | ProfileEntryHookStub::MaybeCallEntryHook(masm); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 759 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 760 | // Clear the context before we push it when entering the internal frame. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 761 | __ mov(cp, Operand::Zero()); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 762 | |
| 763 | // Enter an internal frame. |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 764 | { |
| 765 | FrameScope scope(masm, StackFrame::INTERNAL); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 766 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 767 | // Setup the context (we need to use the caller context from the isolate). |
| 768 | ExternalReference context_address(Isolate::kContextAddress, |
| 769 | masm->isolate()); |
| 770 | __ mov(cp, Operand(context_address)); |
| 771 | __ ldr(cp, MemOperand(cp)); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 772 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 773 | __ InitializeRootRegister(); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 774 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 775 | // Push the function and the receiver onto the stack. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 776 | __ Push(r1, r2); |
| 777 | |
| 778 | // Check if we have enough stack space to push all arguments. |
| 779 | // Clobbers r2. |
| 780 | Generate_CheckStackOverflow(masm, r3, kArgcIsUntaggedInt); |
| 781 | |
| 782 | // Remember new.target. |
| 783 | __ mov(r5, r0); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 784 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 785 | // Copy arguments to the stack in a loop. |
| 786 | // r1: function |
| 787 | // r3: argc |
| 788 | // r4: argv, i.e. points to first arg |
| 789 | Label loop, entry; |
| 790 | __ add(r2, r4, Operand(r3, LSL, kPointerSizeLog2)); |
| 791 | // r2 points past last arg. |
| 792 | __ b(&entry); |
| 793 | __ bind(&loop); |
| 794 | __ ldr(r0, MemOperand(r4, kPointerSize, PostIndex)); // read next parameter |
| 795 | __ ldr(r0, MemOperand(r0)); // dereference handle |
| 796 | __ push(r0); // push parameter |
| 797 | __ bind(&entry); |
| 798 | __ cmp(r4, r2); |
| 799 | __ b(ne, &loop); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 800 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 801 | // Setup new.target and argc. |
| 802 | __ mov(r0, Operand(r3)); |
| 803 | __ mov(r3, Operand(r5)); |
| 804 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 805 | // Initialize all JavaScript callee-saved registers, since they will be seen |
| 806 | // by the garbage collector as part of handlers. |
| 807 | __ LoadRoot(r4, Heap::kUndefinedValueRootIndex); |
| 808 | __ mov(r5, Operand(r4)); |
| 809 | __ mov(r6, Operand(r4)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 810 | if (!FLAG_enable_embedded_constant_pool) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 811 | __ mov(r8, Operand(r4)); |
| 812 | } |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 813 | if (kR9Available == 1) { |
| 814 | __ mov(r9, Operand(r4)); |
| 815 | } |
| 816 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 817 | // Invoke the code. |
| 818 | Handle<Code> builtin = is_construct |
| 819 | ? masm->isolate()->builtins()->Construct() |
| 820 | : masm->isolate()->builtins()->Call(); |
| 821 | __ Call(builtin, RelocInfo::CODE_TARGET); |
| 822 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 823 | // Exit the JS frame and remove the parameters (except function), and |
| 824 | // return. |
| 825 | // Respect ABI stack constraint. |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 826 | } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 827 | __ Jump(lr); |
| 828 | |
| 829 | // r0: result |
| 830 | } |
| 831 | |
| 832 | |
| 833 | void Builtins::Generate_JSEntryTrampoline(MacroAssembler* masm) { |
| 834 | Generate_JSEntryTrampolineHelper(masm, false); |
| 835 | } |
| 836 | |
| 837 | |
| 838 | void Builtins::Generate_JSConstructEntryTrampoline(MacroAssembler* masm) { |
| 839 | Generate_JSEntryTrampolineHelper(masm, true); |
| 840 | } |
| 841 | |
| 842 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 843 | // Generate code for entering a JS function with the interpreter. |
| 844 | // On entry to the function the receiver and arguments have been pushed on the |
| 845 | // stack left to right. The actual argument count matches the formal parameter |
| 846 | // count expected by the function. |
| 847 | // |
| 848 | // The live registers are: |
| 849 | // o r1: the JS function object being called. |
| 850 | // o r3: the new target |
| 851 | // o cp: our context |
| 852 | // o pp: the caller's constant pool pointer (if enabled) |
| 853 | // o fp: the caller's frame pointer |
| 854 | // o sp: stack pointer |
| 855 | // o lr: return address |
| 856 | // |
| 857 | // The function builds a JS frame. Please see JavaScriptFrameConstants in |
| 858 | // frames-arm.h for its layout. |
| 859 | // TODO(rmcilroy): We will need to include the current bytecode pointer in the |
| 860 | // frame. |
| 861 | void Builtins::Generate_InterpreterEntryTrampoline(MacroAssembler* masm) { |
| 862 | // Open a frame scope to indicate that there is a frame on the stack. The |
| 863 | // MANUAL indicates that the scope shouldn't actually generate code to set up |
| 864 | // the frame (that is done below). |
| 865 | FrameScope frame_scope(masm, StackFrame::MANUAL); |
| 866 | __ PushFixedFrame(r1); |
| 867 | __ add(fp, sp, Operand(StandardFrameConstants::kFixedFrameSizeFromFp)); |
| 868 | __ push(r3); |
| 869 | |
| 870 | // Push zero for bytecode array offset. |
| 871 | __ mov(r0, Operand(0)); |
| 872 | __ push(r0); |
| 873 | |
| 874 | // Get the bytecode array from the function object and load the pointer to the |
| 875 | // first entry into kInterpreterBytecodeRegister. |
| 876 | __ ldr(r0, FieldMemOperand(r1, JSFunction::kSharedFunctionInfoOffset)); |
| 877 | __ ldr(kInterpreterBytecodeArrayRegister, |
| 878 | FieldMemOperand(r0, SharedFunctionInfo::kFunctionDataOffset)); |
| 879 | |
| 880 | if (FLAG_debug_code) { |
| 881 | // Check function data field is actually a BytecodeArray object. |
| 882 | __ SmiTst(kInterpreterBytecodeArrayRegister); |
| 883 | __ Assert(ne, kFunctionDataShouldBeBytecodeArrayOnInterpreterEntry); |
| 884 | __ CompareObjectType(kInterpreterBytecodeArrayRegister, r0, no_reg, |
| 885 | BYTECODE_ARRAY_TYPE); |
| 886 | __ Assert(eq, kFunctionDataShouldBeBytecodeArrayOnInterpreterEntry); |
| 887 | } |
| 888 | |
| 889 | // Allocate the local and temporary register file on the stack. |
| 890 | { |
| 891 | // Load frame size from the BytecodeArray object. |
| 892 | __ ldr(r4, FieldMemOperand(kInterpreterBytecodeArrayRegister, |
| 893 | BytecodeArray::kFrameSizeOffset)); |
| 894 | |
| 895 | // Do a stack check to ensure we don't go over the limit. |
| 896 | Label ok; |
| 897 | __ sub(r9, sp, Operand(r4)); |
| 898 | __ LoadRoot(r2, Heap::kRealStackLimitRootIndex); |
| 899 | __ cmp(r9, Operand(r2)); |
| 900 | __ b(hs, &ok); |
| 901 | __ CallRuntime(Runtime::kThrowStackOverflow); |
| 902 | __ bind(&ok); |
| 903 | |
| 904 | // If ok, push undefined as the initial value for all register file entries. |
| 905 | Label loop_header; |
| 906 | Label loop_check; |
| 907 | __ LoadRoot(r9, Heap::kUndefinedValueRootIndex); |
| 908 | __ b(&loop_check, al); |
| 909 | __ bind(&loop_header); |
| 910 | // TODO(rmcilroy): Consider doing more than one push per loop iteration. |
| 911 | __ push(r9); |
| 912 | // Continue loop if not done. |
| 913 | __ bind(&loop_check); |
| 914 | __ sub(r4, r4, Operand(kPointerSize), SetCC); |
| 915 | __ b(&loop_header, ge); |
| 916 | } |
| 917 | |
| 918 | // TODO(rmcilroy): List of things not currently dealt with here but done in |
| 919 | // fullcodegen's prologue: |
| 920 | // - Support profiler (specifically profiling_counter). |
| 921 | // - Call ProfileEntryHookStub when isolate has a function_entry_hook. |
| 922 | // - Allow simulator stop operations if FLAG_stop_at is set. |
| 923 | // - Code aging of the BytecodeArray object. |
| 924 | |
| 925 | // Perform stack guard check. |
| 926 | { |
| 927 | Label ok; |
| 928 | __ LoadRoot(ip, Heap::kStackLimitRootIndex); |
| 929 | __ cmp(sp, Operand(ip)); |
| 930 | __ b(hs, &ok); |
| 931 | __ push(kInterpreterBytecodeArrayRegister); |
| 932 | __ CallRuntime(Runtime::kStackGuard); |
| 933 | __ pop(kInterpreterBytecodeArrayRegister); |
| 934 | __ bind(&ok); |
| 935 | } |
| 936 | |
| 937 | // Load accumulator, register file, bytecode offset, dispatch table into |
| 938 | // registers. |
| 939 | __ LoadRoot(kInterpreterAccumulatorRegister, Heap::kUndefinedValueRootIndex); |
| 940 | __ add(kInterpreterRegisterFileRegister, fp, |
| 941 | Operand(InterpreterFrameConstants::kRegisterFilePointerFromFp)); |
| 942 | __ mov(kInterpreterBytecodeOffsetRegister, |
| 943 | Operand(BytecodeArray::kHeaderSize - kHeapObjectTag)); |
| 944 | __ LoadRoot(kInterpreterDispatchTableRegister, |
| 945 | Heap::kInterpreterTableRootIndex); |
| 946 | __ add(kInterpreterDispatchTableRegister, kInterpreterDispatchTableRegister, |
| 947 | Operand(FixedArray::kHeaderSize - kHeapObjectTag)); |
| 948 | |
| 949 | // Dispatch to the first bytecode handler for the function. |
| 950 | __ ldrb(r1, MemOperand(kInterpreterBytecodeArrayRegister, |
| 951 | kInterpreterBytecodeOffsetRegister)); |
| 952 | __ ldr(ip, MemOperand(kInterpreterDispatchTableRegister, r1, LSL, |
| 953 | kPointerSizeLog2)); |
| 954 | // TODO(rmcilroy): Make dispatch table point to code entrys to avoid untagging |
| 955 | // and header removal. |
| 956 | __ add(ip, ip, Operand(Code::kHeaderSize - kHeapObjectTag)); |
| 957 | __ Call(ip); |
| 958 | } |
| 959 | |
| 960 | |
| 961 | void Builtins::Generate_InterpreterExitTrampoline(MacroAssembler* masm) { |
| 962 | // TODO(rmcilroy): List of things not currently dealt with here but done in |
| 963 | // fullcodegen's EmitReturnSequence. |
| 964 | // - Supporting FLAG_trace for Runtime::TraceExit. |
| 965 | // - Support profiler (specifically decrementing profiling_counter |
| 966 | // appropriately and calling out to HandleInterrupts if necessary). |
| 967 | |
| 968 | // The return value is in accumulator, which is already in r0. |
| 969 | |
| 970 | // Leave the frame (also dropping the register file). |
| 971 | __ LeaveFrame(StackFrame::JAVA_SCRIPT); |
| 972 | |
| 973 | // Drop receiver + arguments and return. |
| 974 | __ ldr(ip, FieldMemOperand(kInterpreterBytecodeArrayRegister, |
| 975 | BytecodeArray::kParameterSizeOffset)); |
| 976 | __ add(sp, sp, ip, LeaveCC); |
| 977 | __ Jump(lr); |
| 978 | } |
| 979 | |
| 980 | |
| 981 | static void Generate_InterpreterPushArgs(MacroAssembler* masm, Register index, |
| 982 | Register limit, Register scratch) { |
| 983 | Label loop_header, loop_check; |
| 984 | __ b(al, &loop_check); |
| 985 | __ bind(&loop_header); |
| 986 | __ ldr(scratch, MemOperand(index, -kPointerSize, PostIndex)); |
| 987 | __ push(scratch); |
| 988 | __ bind(&loop_check); |
| 989 | __ cmp(index, limit); |
| 990 | __ b(gt, &loop_header); |
| 991 | } |
| 992 | |
| 993 | |
| 994 | // static |
| 995 | void Builtins::Generate_InterpreterPushArgsAndCall(MacroAssembler* masm) { |
| 996 | // ----------- S t a t e ------------- |
| 997 | // -- r0 : the number of arguments (not including the receiver) |
| 998 | // -- r2 : the address of the first argument to be pushed. Subsequent |
| 999 | // arguments should be consecutive above this, in the same order as |
| 1000 | // they are to be pushed onto the stack. |
| 1001 | // -- r1 : the target to call (can be any Object). |
| 1002 | // ----------------------------------- |
| 1003 | |
| 1004 | // Find the address of the last argument. |
| 1005 | __ add(r3, r0, Operand(1)); // Add one for receiver. |
| 1006 | __ mov(r3, Operand(r3, LSL, kPointerSizeLog2)); |
| 1007 | __ sub(r3, r2, r3); |
| 1008 | |
| 1009 | // Push the arguments. |
| 1010 | Generate_InterpreterPushArgs(masm, r2, r3, r4); |
| 1011 | |
| 1012 | // Call the target. |
| 1013 | __ Jump(masm->isolate()->builtins()->Call(), RelocInfo::CODE_TARGET); |
| 1014 | } |
| 1015 | |
| 1016 | |
| 1017 | // static |
| 1018 | void Builtins::Generate_InterpreterPushArgsAndConstruct(MacroAssembler* masm) { |
| 1019 | // ----------- S t a t e ------------- |
| 1020 | // -- r0 : argument count (not including receiver) |
| 1021 | // -- r3 : new target |
| 1022 | // -- r1 : constructor to call |
| 1023 | // -- r2 : address of the first argument |
| 1024 | // ----------------------------------- |
| 1025 | |
| 1026 | // Find the address of the last argument. |
| 1027 | __ mov(r4, Operand(r0, LSL, kPointerSizeLog2)); |
| 1028 | __ sub(r4, r2, r4); |
| 1029 | |
| 1030 | // Push a slot for the receiver to be constructed. |
| 1031 | __ mov(ip, Operand::Zero()); |
| 1032 | __ push(ip); |
| 1033 | |
| 1034 | // Push the arguments. |
| 1035 | Generate_InterpreterPushArgs(masm, r2, r4, r5); |
| 1036 | |
| 1037 | // Call the constructor with r0, r1, and r3 unmodified. |
| 1038 | __ Jump(masm->isolate()->builtins()->Construct(), RelocInfo::CODE_TARGET); |
| 1039 | } |
| 1040 | |
| 1041 | |
| 1042 | static void Generate_InterpreterNotifyDeoptimizedHelper( |
| 1043 | MacroAssembler* masm, Deoptimizer::BailoutType type) { |
| 1044 | // Enter an internal frame. |
| 1045 | { |
| 1046 | FrameScope scope(masm, StackFrame::INTERNAL); |
| 1047 | __ push(kInterpreterAccumulatorRegister); // Save accumulator register. |
| 1048 | |
| 1049 | // Pass the deoptimization type to the runtime system. |
| 1050 | __ mov(r1, Operand(Smi::FromInt(static_cast<int>(type)))); |
| 1051 | __ push(r1); |
| 1052 | __ CallRuntime(Runtime::kNotifyDeoptimized); |
| 1053 | |
| 1054 | __ pop(kInterpreterAccumulatorRegister); // Restore accumulator register. |
| 1055 | // Tear down internal frame. |
| 1056 | } |
| 1057 | |
| 1058 | // Drop state (we don't use this for interpreter deopts). |
| 1059 | __ Drop(1); |
| 1060 | |
| 1061 | // Initialize register file register and dispatch table register. |
| 1062 | __ add(kInterpreterRegisterFileRegister, fp, |
| 1063 | Operand(InterpreterFrameConstants::kRegisterFilePointerFromFp)); |
| 1064 | __ LoadRoot(kInterpreterDispatchTableRegister, |
| 1065 | Heap::kInterpreterTableRootIndex); |
| 1066 | __ add(kInterpreterDispatchTableRegister, kInterpreterDispatchTableRegister, |
| 1067 | Operand(FixedArray::kHeaderSize - kHeapObjectTag)); |
| 1068 | |
| 1069 | // Get the context from the frame. |
| 1070 | // TODO(rmcilroy): Update interpreter frame to expect current context at the |
| 1071 | // context slot instead of the function context. |
| 1072 | __ ldr(kContextRegister, |
| 1073 | MemOperand(kInterpreterRegisterFileRegister, |
| 1074 | InterpreterFrameConstants::kContextFromRegisterPointer)); |
| 1075 | |
| 1076 | // Get the bytecode array pointer from the frame. |
| 1077 | __ ldr(r1, |
| 1078 | MemOperand(kInterpreterRegisterFileRegister, |
| 1079 | InterpreterFrameConstants::kFunctionFromRegisterPointer)); |
| 1080 | __ ldr(r1, FieldMemOperand(r1, JSFunction::kSharedFunctionInfoOffset)); |
| 1081 | __ ldr(kInterpreterBytecodeArrayRegister, |
| 1082 | FieldMemOperand(r1, SharedFunctionInfo::kFunctionDataOffset)); |
| 1083 | |
| 1084 | if (FLAG_debug_code) { |
| 1085 | // Check function data field is actually a BytecodeArray object. |
| 1086 | __ SmiTst(kInterpreterBytecodeArrayRegister); |
| 1087 | __ Assert(ne, kFunctionDataShouldBeBytecodeArrayOnInterpreterEntry); |
| 1088 | __ CompareObjectType(kInterpreterBytecodeArrayRegister, r1, no_reg, |
| 1089 | BYTECODE_ARRAY_TYPE); |
| 1090 | __ Assert(eq, kFunctionDataShouldBeBytecodeArrayOnInterpreterEntry); |
| 1091 | } |
| 1092 | |
| 1093 | // Get the target bytecode offset from the frame. |
| 1094 | __ ldr(kInterpreterBytecodeOffsetRegister, |
| 1095 | MemOperand( |
| 1096 | kInterpreterRegisterFileRegister, |
| 1097 | InterpreterFrameConstants::kBytecodeOffsetFromRegisterPointer)); |
| 1098 | __ SmiUntag(kInterpreterBytecodeOffsetRegister); |
| 1099 | |
| 1100 | // Dispatch to the target bytecode. |
| 1101 | __ ldrb(r1, MemOperand(kInterpreterBytecodeArrayRegister, |
| 1102 | kInterpreterBytecodeOffsetRegister)); |
| 1103 | __ ldr(ip, MemOperand(kInterpreterDispatchTableRegister, r1, LSL, |
| 1104 | kPointerSizeLog2)); |
| 1105 | __ add(ip, ip, Operand(Code::kHeaderSize - kHeapObjectTag)); |
| 1106 | __ mov(pc, ip); |
| 1107 | } |
| 1108 | |
| 1109 | |
| 1110 | void Builtins::Generate_InterpreterNotifyDeoptimized(MacroAssembler* masm) { |
| 1111 | Generate_InterpreterNotifyDeoptimizedHelper(masm, Deoptimizer::EAGER); |
| 1112 | } |
| 1113 | |
| 1114 | |
| 1115 | void Builtins::Generate_InterpreterNotifySoftDeoptimized(MacroAssembler* masm) { |
| 1116 | Generate_InterpreterNotifyDeoptimizedHelper(masm, Deoptimizer::SOFT); |
| 1117 | } |
| 1118 | |
| 1119 | |
| 1120 | void Builtins::Generate_InterpreterNotifyLazyDeoptimized(MacroAssembler* masm) { |
| 1121 | Generate_InterpreterNotifyDeoptimizedHelper(masm, Deoptimizer::LAZY); |
| 1122 | } |
| 1123 | |
| 1124 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1125 | void Builtins::Generate_CompileLazy(MacroAssembler* masm) { |
| 1126 | CallRuntimePassFunction(masm, Runtime::kCompileLazy); |
| 1127 | GenerateTailCallToReturnedCode(masm); |
Iain Merrick | 7568138 | 2010-08-19 15:07:18 +0100 | [diff] [blame] | 1128 | } |
| 1129 | |
| 1130 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1131 | void Builtins::Generate_CompileOptimized(MacroAssembler* masm) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1132 | CallRuntimePassFunction(masm, Runtime::kCompileOptimized_NotConcurrent); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1133 | GenerateTailCallToReturnedCode(masm); |
| 1134 | } |
| 1135 | |
| 1136 | |
| 1137 | void Builtins::Generate_CompileOptimizedConcurrent(MacroAssembler* masm) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1138 | CallRuntimePassFunction(masm, Runtime::kCompileOptimized_Concurrent); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1139 | GenerateTailCallToReturnedCode(masm); |
| 1140 | } |
| 1141 | |
| 1142 | |
| 1143 | static void GenerateMakeCodeYoungAgainCommon(MacroAssembler* masm) { |
| 1144 | // For now, we are relying on the fact that make_code_young doesn't do any |
| 1145 | // garbage collection which allows us to save/restore the registers without |
| 1146 | // worrying about which of them contain pointers. We also don't build an |
| 1147 | // internal frame to make the code faster, since we shouldn't have to do stack |
| 1148 | // crawls in MakeCodeYoung. This seems a bit fragile. |
| 1149 | |
| 1150 | // The following registers must be saved and restored when calling through to |
| 1151 | // the runtime: |
| 1152 | // r0 - contains return address (beginning of patch sequence) |
| 1153 | // r1 - isolate |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1154 | // r3 - new target |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1155 | FrameScope scope(masm, StackFrame::MANUAL); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1156 | __ stm(db_w, sp, r0.bit() | r1.bit() | r3.bit() | fp.bit() | lr.bit()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1157 | __ PrepareCallCFunction(2, 0, r2); |
| 1158 | __ mov(r1, Operand(ExternalReference::isolate_address(masm->isolate()))); |
| 1159 | __ CallCFunction( |
| 1160 | ExternalReference::get_make_code_young_function(masm->isolate()), 2); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1161 | __ ldm(ia_w, sp, r0.bit() | r1.bit() | r3.bit() | fp.bit() | lr.bit()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1162 | __ mov(pc, r0); |
| 1163 | } |
| 1164 | |
| 1165 | #define DEFINE_CODE_AGE_BUILTIN_GENERATOR(C) \ |
| 1166 | void Builtins::Generate_Make##C##CodeYoungAgainEvenMarking( \ |
| 1167 | MacroAssembler* masm) { \ |
| 1168 | GenerateMakeCodeYoungAgainCommon(masm); \ |
| 1169 | } \ |
| 1170 | void Builtins::Generate_Make##C##CodeYoungAgainOddMarking( \ |
| 1171 | MacroAssembler* masm) { \ |
| 1172 | GenerateMakeCodeYoungAgainCommon(masm); \ |
| 1173 | } |
| 1174 | CODE_AGE_LIST(DEFINE_CODE_AGE_BUILTIN_GENERATOR) |
| 1175 | #undef DEFINE_CODE_AGE_BUILTIN_GENERATOR |
| 1176 | |
| 1177 | |
| 1178 | void Builtins::Generate_MarkCodeAsExecutedOnce(MacroAssembler* masm) { |
| 1179 | // For now, as in GenerateMakeCodeYoungAgainCommon, we are relying on the fact |
| 1180 | // that make_code_young doesn't do any garbage collection which allows us to |
| 1181 | // save/restore the registers without worrying about which of them contain |
| 1182 | // pointers. |
| 1183 | |
| 1184 | // The following registers must be saved and restored when calling through to |
| 1185 | // the runtime: |
| 1186 | // r0 - contains return address (beginning of patch sequence) |
| 1187 | // r1 - isolate |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1188 | // r3 - new target |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1189 | FrameScope scope(masm, StackFrame::MANUAL); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1190 | __ stm(db_w, sp, r0.bit() | r1.bit() | r3.bit() | fp.bit() | lr.bit()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1191 | __ PrepareCallCFunction(2, 0, r2); |
| 1192 | __ mov(r1, Operand(ExternalReference::isolate_address(masm->isolate()))); |
| 1193 | __ CallCFunction(ExternalReference::get_mark_code_as_executed_function( |
| 1194 | masm->isolate()), 2); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1195 | __ ldm(ia_w, sp, r0.bit() | r1.bit() | r3.bit() | fp.bit() | lr.bit()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1196 | |
| 1197 | // Perform prologue operations usually performed by the young code stub. |
| 1198 | __ PushFixedFrame(r1); |
| 1199 | __ add(fp, sp, Operand(StandardFrameConstants::kFixedFrameSizeFromFp)); |
| 1200 | |
| 1201 | // Jump to point after the code-age stub. |
| 1202 | __ add(r0, r0, Operand(kNoCodeAgeSequenceLength)); |
| 1203 | __ mov(pc, r0); |
| 1204 | } |
| 1205 | |
| 1206 | |
| 1207 | void Builtins::Generate_MarkCodeAsExecutedTwice(MacroAssembler* masm) { |
| 1208 | GenerateMakeCodeYoungAgainCommon(masm); |
| 1209 | } |
| 1210 | |
| 1211 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1212 | void Builtins::Generate_MarkCodeAsToBeExecutedOnce(MacroAssembler* masm) { |
| 1213 | Generate_MarkCodeAsExecutedOnce(masm); |
| 1214 | } |
| 1215 | |
| 1216 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1217 | static void Generate_NotifyStubFailureHelper(MacroAssembler* masm, |
| 1218 | SaveFPRegsMode save_doubles) { |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1219 | { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1220 | FrameAndConstantPoolScope scope(masm, StackFrame::INTERNAL); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1221 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1222 | // Preserve registers across notification, this is important for compiled |
| 1223 | // stubs that tail call the runtime on deopts passing their parameters in |
| 1224 | // registers. |
| 1225 | __ stm(db_w, sp, kJSCallerSaved | kCalleeSaved); |
| 1226 | // Pass the function and deoptimization type to the runtime system. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1227 | __ CallRuntime(Runtime::kNotifyStubFailure, save_doubles); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1228 | __ ldm(ia_w, sp, kJSCallerSaved | kCalleeSaved); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1229 | } |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1230 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1231 | __ add(sp, sp, Operand(kPointerSize)); // Ignore state |
| 1232 | __ mov(pc, lr); // Jump to miss handler |
| 1233 | } |
| 1234 | |
| 1235 | |
| 1236 | void Builtins::Generate_NotifyStubFailure(MacroAssembler* masm) { |
| 1237 | Generate_NotifyStubFailureHelper(masm, kDontSaveFPRegs); |
| 1238 | } |
| 1239 | |
| 1240 | |
| 1241 | void Builtins::Generate_NotifyStubFailureSaveDoubles(MacroAssembler* masm) { |
| 1242 | Generate_NotifyStubFailureHelper(masm, kSaveFPRegs); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1243 | } |
| 1244 | |
| 1245 | |
| 1246 | static void Generate_NotifyDeoptimizedHelper(MacroAssembler* masm, |
| 1247 | Deoptimizer::BailoutType type) { |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1248 | { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1249 | FrameAndConstantPoolScope scope(masm, StackFrame::INTERNAL); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1250 | // Pass the function and deoptimization type to the runtime system. |
| 1251 | __ mov(r0, Operand(Smi::FromInt(static_cast<int>(type)))); |
| 1252 | __ push(r0); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1253 | __ CallRuntime(Runtime::kNotifyDeoptimized); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1254 | } |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1255 | |
| 1256 | // Get the full codegen state from the stack and untag it -> r6. |
| 1257 | __ ldr(r6, MemOperand(sp, 0 * kPointerSize)); |
| 1258 | __ SmiUntag(r6); |
| 1259 | // Switch on the state. |
| 1260 | Label with_tos_register, unknown_state; |
| 1261 | __ cmp(r6, Operand(FullCodeGenerator::NO_REGISTERS)); |
| 1262 | __ b(ne, &with_tos_register); |
| 1263 | __ add(sp, sp, Operand(1 * kPointerSize)); // Remove state. |
| 1264 | __ Ret(); |
| 1265 | |
| 1266 | __ bind(&with_tos_register); |
| 1267 | __ ldr(r0, MemOperand(sp, 1 * kPointerSize)); |
| 1268 | __ cmp(r6, Operand(FullCodeGenerator::TOS_REG)); |
| 1269 | __ b(ne, &unknown_state); |
| 1270 | __ add(sp, sp, Operand(2 * kPointerSize)); // Remove state. |
| 1271 | __ Ret(); |
| 1272 | |
| 1273 | __ bind(&unknown_state); |
| 1274 | __ stop("no cases left"); |
| 1275 | } |
| 1276 | |
| 1277 | |
| 1278 | void Builtins::Generate_NotifyDeoptimized(MacroAssembler* masm) { |
| 1279 | Generate_NotifyDeoptimizedHelper(masm, Deoptimizer::EAGER); |
| 1280 | } |
| 1281 | |
| 1282 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1283 | void Builtins::Generate_NotifySoftDeoptimized(MacroAssembler* masm) { |
| 1284 | Generate_NotifyDeoptimizedHelper(masm, Deoptimizer::SOFT); |
| 1285 | } |
| 1286 | |
| 1287 | |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1288 | void Builtins::Generate_NotifyLazyDeoptimized(MacroAssembler* masm) { |
| 1289 | Generate_NotifyDeoptimizedHelper(masm, Deoptimizer::LAZY); |
| 1290 | } |
| 1291 | |
| 1292 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1293 | static void CompatibleReceiverCheck(MacroAssembler* masm, Register receiver, |
| 1294 | Register function_template_info, |
| 1295 | Register scratch0, Register scratch1, |
| 1296 | Register scratch2, |
| 1297 | Label* receiver_check_failed) { |
| 1298 | Register signature = scratch0; |
| 1299 | Register map = scratch1; |
| 1300 | Register constructor = scratch2; |
| 1301 | |
| 1302 | // If there is no signature, return the holder. |
| 1303 | __ ldr(signature, FieldMemOperand(function_template_info, |
| 1304 | FunctionTemplateInfo::kSignatureOffset)); |
| 1305 | __ CompareRoot(signature, Heap::kUndefinedValueRootIndex); |
| 1306 | Label receiver_check_passed; |
| 1307 | __ b(eq, &receiver_check_passed); |
| 1308 | |
| 1309 | // Walk the prototype chain. |
| 1310 | __ ldr(map, FieldMemOperand(receiver, HeapObject::kMapOffset)); |
| 1311 | Label prototype_loop_start; |
| 1312 | __ bind(&prototype_loop_start); |
| 1313 | |
| 1314 | // Get the constructor, if any. |
| 1315 | __ GetMapConstructor(constructor, map, ip, ip); |
| 1316 | __ cmp(ip, Operand(JS_FUNCTION_TYPE)); |
| 1317 | Label next_prototype; |
| 1318 | __ b(ne, &next_prototype); |
| 1319 | Register type = constructor; |
| 1320 | __ ldr(type, |
| 1321 | FieldMemOperand(constructor, JSFunction::kSharedFunctionInfoOffset)); |
| 1322 | __ ldr(type, FieldMemOperand(type, SharedFunctionInfo::kFunctionDataOffset)); |
| 1323 | |
| 1324 | // Loop through the chain of inheriting function templates. |
| 1325 | Label function_template_loop; |
| 1326 | __ bind(&function_template_loop); |
| 1327 | |
| 1328 | // If the signatures match, we have a compatible receiver. |
| 1329 | __ cmp(signature, type); |
| 1330 | __ b(eq, &receiver_check_passed); |
| 1331 | |
| 1332 | // If the current type is not a FunctionTemplateInfo, load the next prototype |
| 1333 | // in the chain. |
| 1334 | __ JumpIfSmi(type, &next_prototype); |
| 1335 | __ CompareObjectType(type, ip, ip, FUNCTION_TEMPLATE_INFO_TYPE); |
| 1336 | |
| 1337 | // Otherwise load the parent function template and iterate. |
| 1338 | __ ldr(type, |
| 1339 | FieldMemOperand(type, FunctionTemplateInfo::kParentTemplateOffset), |
| 1340 | eq); |
| 1341 | __ b(&function_template_loop, eq); |
| 1342 | |
| 1343 | // Load the next prototype. |
| 1344 | __ bind(&next_prototype); |
| 1345 | __ ldr(receiver, FieldMemOperand(map, Map::kPrototypeOffset)); |
| 1346 | // End if the prototype is null or not hidden. |
| 1347 | __ CompareRoot(receiver, Heap::kNullValueRootIndex); |
| 1348 | __ b(eq, receiver_check_failed); |
| 1349 | __ ldr(map, FieldMemOperand(receiver, HeapObject::kMapOffset)); |
| 1350 | __ ldr(ip, FieldMemOperand(map, Map::kBitField3Offset)); |
| 1351 | __ tst(ip, Operand(Map::IsHiddenPrototype::kMask)); |
| 1352 | __ b(eq, receiver_check_failed); |
| 1353 | // Iterate. |
| 1354 | __ b(&prototype_loop_start); |
| 1355 | |
| 1356 | __ bind(&receiver_check_passed); |
| 1357 | } |
| 1358 | |
| 1359 | |
| 1360 | void Builtins::Generate_HandleFastApiCall(MacroAssembler* masm) { |
| 1361 | // ----------- S t a t e ------------- |
| 1362 | // -- r0 : number of arguments excluding receiver |
| 1363 | // -- r1 : callee |
| 1364 | // -- lr : return address |
| 1365 | // -- sp[0] : last argument |
| 1366 | // -- ... |
| 1367 | // -- sp[4 * (argc - 1)] : first argument |
| 1368 | // -- sp[4 * argc] : receiver |
| 1369 | // ----------------------------------- |
| 1370 | |
| 1371 | // Load the FunctionTemplateInfo. |
| 1372 | __ ldr(r3, FieldMemOperand(r1, JSFunction::kSharedFunctionInfoOffset)); |
| 1373 | __ ldr(r3, FieldMemOperand(r3, SharedFunctionInfo::kFunctionDataOffset)); |
| 1374 | |
| 1375 | // Do the compatible receiver check. |
| 1376 | Label receiver_check_failed; |
| 1377 | __ ldr(r2, MemOperand(sp, r0, LSL, kPointerSizeLog2)); |
| 1378 | CompatibleReceiverCheck(masm, r2, r3, r4, r5, r6, &receiver_check_failed); |
| 1379 | |
| 1380 | // Get the callback offset from the FunctionTemplateInfo, and jump to the |
| 1381 | // beginning of the code. |
| 1382 | __ ldr(r4, FieldMemOperand(r3, FunctionTemplateInfo::kCallCodeOffset)); |
| 1383 | __ ldr(r4, FieldMemOperand(r4, CallHandlerInfo::kFastHandlerOffset)); |
| 1384 | __ add(r4, r4, Operand(Code::kHeaderSize - kHeapObjectTag)); |
| 1385 | __ Jump(r4); |
| 1386 | |
| 1387 | // Compatible receiver check failed: throw an Illegal Invocation exception. |
| 1388 | __ bind(&receiver_check_failed); |
| 1389 | // Drop the arguments (including the receiver) |
| 1390 | __ add(r0, r0, Operand(1)); |
| 1391 | __ add(sp, sp, Operand(r0, LSL, kPointerSizeLog2)); |
| 1392 | __ TailCallRuntime(Runtime::kThrowIllegalInvocation); |
| 1393 | } |
| 1394 | |
| 1395 | |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1396 | void Builtins::Generate_OnStackReplacement(MacroAssembler* masm) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1397 | // Lookup the function in the JavaScript frame. |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 1398 | __ ldr(r0, MemOperand(fp, JavaScriptFrameConstants::kFunctionOffset)); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1399 | { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1400 | FrameAndConstantPoolScope scope(masm, StackFrame::INTERNAL); |
| 1401 | // Pass function as argument. |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1402 | __ push(r0); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1403 | __ CallRuntime(Runtime::kCompileForOnStackReplacement); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1404 | } |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 1405 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1406 | // If the code object is null, just return to the unoptimized code. |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 1407 | Label skip; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1408 | __ cmp(r0, Operand(Smi::FromInt(0))); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 1409 | __ b(ne, &skip); |
| 1410 | __ Ret(); |
| 1411 | |
| 1412 | __ bind(&skip); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 1413 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1414 | // Load deoptimization data from the code object. |
| 1415 | // <deopt_data> = <code>[#deoptimization_data_offset] |
| 1416 | __ ldr(r1, FieldMemOperand(r0, Code::kDeoptimizationDataOffset)); |
| 1417 | |
| 1418 | { ConstantPoolUnavailableScope constant_pool_unavailable(masm); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1419 | __ add(r0, r0, Operand(Code::kHeaderSize - kHeapObjectTag)); // Code start |
| 1420 | |
| 1421 | if (FLAG_enable_embedded_constant_pool) { |
| 1422 | __ LoadConstantPoolPointerRegisterFromCodeTargetAddress(r0); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1423 | } |
| 1424 | |
| 1425 | // Load the OSR entrypoint offset from the deoptimization data. |
| 1426 | // <osr_offset> = <deopt_data>[#header_size + #osr_pc_offset] |
| 1427 | __ ldr(r1, FieldMemOperand(r1, FixedArray::OffsetOfElementAt( |
| 1428 | DeoptimizationInputData::kOsrPcOffsetIndex))); |
| 1429 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1430 | // Compute the target address = code start + osr_offset |
| 1431 | __ add(lr, r0, Operand::SmiUntag(r1)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1432 | |
| 1433 | // And "return" to the OSR entry point of the function. |
| 1434 | __ Ret(); |
| 1435 | } |
| 1436 | } |
| 1437 | |
| 1438 | |
| 1439 | void Builtins::Generate_OsrAfterStackCheck(MacroAssembler* masm) { |
| 1440 | // We check the stack limit as indicator that recompilation might be done. |
| 1441 | Label ok; |
| 1442 | __ LoadRoot(ip, Heap::kStackLimitRootIndex); |
| 1443 | __ cmp(sp, Operand(ip)); |
| 1444 | __ b(hs, &ok); |
| 1445 | { |
| 1446 | FrameAndConstantPoolScope scope(masm, StackFrame::INTERNAL); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1447 | __ CallRuntime(Runtime::kStackGuard); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1448 | } |
| 1449 | __ Jump(masm->isolate()->builtins()->OnStackReplacement(), |
| 1450 | RelocInfo::CODE_TARGET); |
| 1451 | |
| 1452 | __ bind(&ok); |
| 1453 | __ Ret(); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1454 | } |
| 1455 | |
| 1456 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1457 | // static |
| 1458 | void Builtins::Generate_DatePrototype_GetField(MacroAssembler* masm, |
| 1459 | int field_index) { |
| 1460 | // ----------- S t a t e ------------- |
| 1461 | // -- lr : return address |
| 1462 | // -- sp[0] : receiver |
| 1463 | // ----------------------------------- |
| 1464 | |
| 1465 | // 1. Pop receiver into r0 and check that it's actually a JSDate object. |
| 1466 | Label receiver_not_date; |
| 1467 | { |
| 1468 | __ Pop(r0); |
| 1469 | __ JumpIfSmi(r0, &receiver_not_date); |
| 1470 | __ CompareObjectType(r0, r1, r2, JS_DATE_TYPE); |
| 1471 | __ b(ne, &receiver_not_date); |
| 1472 | } |
| 1473 | |
| 1474 | // 2. Load the specified date field, falling back to the runtime as necessary. |
| 1475 | if (field_index == JSDate::kDateValue) { |
| 1476 | __ ldr(r0, FieldMemOperand(r0, JSDate::kValueOffset)); |
| 1477 | } else { |
| 1478 | if (field_index < JSDate::kFirstUncachedField) { |
| 1479 | Label stamp_mismatch; |
| 1480 | __ mov(r1, Operand(ExternalReference::date_cache_stamp(masm->isolate()))); |
| 1481 | __ ldr(r1, MemOperand(r1)); |
| 1482 | __ ldr(ip, FieldMemOperand(r0, JSDate::kCacheStampOffset)); |
| 1483 | __ cmp(r1, ip); |
| 1484 | __ b(ne, &stamp_mismatch); |
| 1485 | __ ldr(r0, FieldMemOperand( |
| 1486 | r0, JSDate::kValueOffset + field_index * kPointerSize)); |
| 1487 | __ Ret(); |
| 1488 | __ bind(&stamp_mismatch); |
| 1489 | } |
| 1490 | FrameScope scope(masm, StackFrame::INTERNAL); |
| 1491 | __ PrepareCallCFunction(2, r1); |
| 1492 | __ mov(r1, Operand(Smi::FromInt(field_index))); |
| 1493 | __ CallCFunction( |
| 1494 | ExternalReference::get_date_field_function(masm->isolate()), 2); |
| 1495 | } |
| 1496 | __ Ret(); |
| 1497 | |
| 1498 | // 3. Raise a TypeError if the receiver is not a date. |
| 1499 | __ bind(&receiver_not_date); |
| 1500 | __ TailCallRuntime(Runtime::kThrowNotDateError); |
| 1501 | } |
| 1502 | |
| 1503 | |
| 1504 | // static |
| 1505 | void Builtins::Generate_FunctionPrototypeApply(MacroAssembler* masm) { |
| 1506 | // ----------- S t a t e ------------- |
| 1507 | // -- r0 : argc |
| 1508 | // -- sp[0] : argArray |
| 1509 | // -- sp[4] : thisArg |
| 1510 | // -- sp[8] : receiver |
| 1511 | // ----------------------------------- |
| 1512 | |
| 1513 | // 1. Load receiver into r1, argArray into r0 (if present), remove all |
| 1514 | // arguments from the stack (including the receiver), and push thisArg (if |
| 1515 | // present) instead. |
| 1516 | { |
| 1517 | __ LoadRoot(r2, Heap::kUndefinedValueRootIndex); |
| 1518 | __ mov(r3, r2); |
| 1519 | __ ldr(r1, MemOperand(sp, r0, LSL, kPointerSizeLog2)); // receiver |
| 1520 | __ sub(r4, r0, Operand(1), SetCC); |
| 1521 | __ ldr(r2, MemOperand(sp, r4, LSL, kPointerSizeLog2), ge); // thisArg |
| 1522 | __ sub(r4, r4, Operand(1), SetCC, ge); |
| 1523 | __ ldr(r3, MemOperand(sp, r4, LSL, kPointerSizeLog2), ge); // argArray |
| 1524 | __ add(sp, sp, Operand(r0, LSL, kPointerSizeLog2)); |
| 1525 | __ str(r2, MemOperand(sp, 0)); |
| 1526 | __ mov(r0, r3); |
| 1527 | } |
| 1528 | |
| 1529 | // ----------- S t a t e ------------- |
| 1530 | // -- r0 : argArray |
| 1531 | // -- r1 : receiver |
| 1532 | // -- sp[0] : thisArg |
| 1533 | // ----------------------------------- |
| 1534 | |
| 1535 | // 2. Make sure the receiver is actually callable. |
| 1536 | Label receiver_not_callable; |
| 1537 | __ JumpIfSmi(r1, &receiver_not_callable); |
| 1538 | __ ldr(r4, FieldMemOperand(r1, HeapObject::kMapOffset)); |
| 1539 | __ ldrb(r4, FieldMemOperand(r4, Map::kBitFieldOffset)); |
| 1540 | __ tst(r4, Operand(1 << Map::kIsCallable)); |
| 1541 | __ b(eq, &receiver_not_callable); |
| 1542 | |
| 1543 | // 3. Tail call with no arguments if argArray is null or undefined. |
| 1544 | Label no_arguments; |
| 1545 | __ JumpIfRoot(r0, Heap::kNullValueRootIndex, &no_arguments); |
| 1546 | __ JumpIfRoot(r0, Heap::kUndefinedValueRootIndex, &no_arguments); |
| 1547 | |
| 1548 | // 4a. Apply the receiver to the given argArray (passing undefined for |
| 1549 | // new.target). |
| 1550 | __ LoadRoot(r3, Heap::kUndefinedValueRootIndex); |
| 1551 | __ Jump(masm->isolate()->builtins()->Apply(), RelocInfo::CODE_TARGET); |
| 1552 | |
| 1553 | // 4b. The argArray is either null or undefined, so we tail call without any |
| 1554 | // arguments to the receiver. |
| 1555 | __ bind(&no_arguments); |
| 1556 | { |
| 1557 | __ mov(r0, Operand(0)); |
| 1558 | __ Jump(masm->isolate()->builtins()->Call(), RelocInfo::CODE_TARGET); |
| 1559 | } |
| 1560 | |
| 1561 | // 4c. The receiver is not callable, throw an appropriate TypeError. |
| 1562 | __ bind(&receiver_not_callable); |
| 1563 | { |
| 1564 | __ str(r1, MemOperand(sp, 0)); |
| 1565 | __ TailCallRuntime(Runtime::kThrowApplyNonFunction); |
| 1566 | } |
| 1567 | } |
| 1568 | |
| 1569 | |
| 1570 | // static |
| 1571 | void Builtins::Generate_FunctionPrototypeCall(MacroAssembler* masm) { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1572 | // 1. Make sure we have at least one argument. |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 1573 | // r0: actual number of arguments |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1574 | { |
| 1575 | Label done; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1576 | __ cmp(r0, Operand::Zero()); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1577 | __ b(ne, &done); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1578 | __ PushRoot(Heap::kUndefinedValueRootIndex); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1579 | __ add(r0, r0, Operand(1)); |
| 1580 | __ bind(&done); |
| 1581 | } |
| 1582 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1583 | // 2. Get the callable to call (passed as receiver) from the stack. |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 1584 | // r0: actual number of arguments |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 1585 | __ ldr(r1, MemOperand(sp, r0, LSL, kPointerSizeLog2)); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1586 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1587 | // 3. Shift arguments and return address one slot down on the stack |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 1588 | // (overwriting the original receiver). Adjust argument count to make |
| 1589 | // the original first argument the new receiver. |
| 1590 | // r0: actual number of arguments |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1591 | // r1: callable |
| 1592 | { |
| 1593 | Label loop; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1594 | // Calculate the copy start address (destination). Copy end address is sp. |
| 1595 | __ add(r2, sp, Operand(r0, LSL, kPointerSizeLog2)); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1596 | |
| 1597 | __ bind(&loop); |
| 1598 | __ ldr(ip, MemOperand(r2, -kPointerSize)); |
| 1599 | __ str(ip, MemOperand(r2)); |
| 1600 | __ sub(r2, r2, Operand(kPointerSize)); |
| 1601 | __ cmp(r2, sp); |
| 1602 | __ b(ne, &loop); |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 1603 | // Adjust the actual number of arguments and remove the top element |
| 1604 | // (which is a copy of the last argument). |
| 1605 | __ sub(r0, r0, Operand(1)); |
| 1606 | __ pop(); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1607 | } |
| 1608 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1609 | // 4. Call the callable. |
| 1610 | __ Jump(masm->isolate()->builtins()->Call(), RelocInfo::CODE_TARGET); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1611 | } |
| 1612 | |
| 1613 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1614 | void Builtins::Generate_ReflectApply(MacroAssembler* masm) { |
| 1615 | // ----------- S t a t e ------------- |
| 1616 | // -- r0 : argc |
| 1617 | // -- sp[0] : argumentsList |
| 1618 | // -- sp[4] : thisArgument |
| 1619 | // -- sp[8] : target |
| 1620 | // -- sp[12] : receiver |
| 1621 | // ----------------------------------- |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1622 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1623 | // 1. Load target into r1 (if present), argumentsList into r0 (if present), |
| 1624 | // remove all arguments from the stack (including the receiver), and push |
| 1625 | // thisArgument (if present) instead. |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1626 | { |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1627 | __ LoadRoot(r1, Heap::kUndefinedValueRootIndex); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1628 | __ mov(r2, r1); |
| 1629 | __ mov(r3, r1); |
| 1630 | __ sub(r4, r0, Operand(1), SetCC); |
| 1631 | __ ldr(r1, MemOperand(sp, r4, LSL, kPointerSizeLog2), ge); // target |
| 1632 | __ sub(r4, r4, Operand(1), SetCC, ge); |
| 1633 | __ ldr(r2, MemOperand(sp, r4, LSL, kPointerSizeLog2), ge); // thisArgument |
| 1634 | __ sub(r4, r4, Operand(1), SetCC, ge); |
| 1635 | __ ldr(r3, MemOperand(sp, r4, LSL, kPointerSizeLog2), ge); // argumentsList |
| 1636 | __ add(sp, sp, Operand(r0, LSL, kPointerSizeLog2)); |
| 1637 | __ str(r2, MemOperand(sp, 0)); |
| 1638 | __ mov(r0, r3); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1639 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1640 | |
| 1641 | // ----------- S t a t e ------------- |
| 1642 | // -- r0 : argumentsList |
| 1643 | // -- r1 : target |
| 1644 | // -- sp[0] : thisArgument |
| 1645 | // ----------------------------------- |
| 1646 | |
| 1647 | // 2. Make sure the target is actually callable. |
| 1648 | Label target_not_callable; |
| 1649 | __ JumpIfSmi(r1, &target_not_callable); |
| 1650 | __ ldr(r4, FieldMemOperand(r1, HeapObject::kMapOffset)); |
| 1651 | __ ldrb(r4, FieldMemOperand(r4, Map::kBitFieldOffset)); |
| 1652 | __ tst(r4, Operand(1 << Map::kIsCallable)); |
| 1653 | __ b(eq, &target_not_callable); |
| 1654 | |
| 1655 | // 3a. Apply the target to the given argumentsList (passing undefined for |
| 1656 | // new.target). |
| 1657 | __ LoadRoot(r3, Heap::kUndefinedValueRootIndex); |
| 1658 | __ Jump(masm->isolate()->builtins()->Apply(), RelocInfo::CODE_TARGET); |
| 1659 | |
| 1660 | // 3b. The target is not callable, throw an appropriate TypeError. |
| 1661 | __ bind(&target_not_callable); |
| 1662 | { |
| 1663 | __ str(r1, MemOperand(sp, 0)); |
| 1664 | __ TailCallRuntime(Runtime::kThrowApplyNonFunction); |
| 1665 | } |
| 1666 | } |
| 1667 | |
| 1668 | |
| 1669 | void Builtins::Generate_ReflectConstruct(MacroAssembler* masm) { |
| 1670 | // ----------- S t a t e ------------- |
| 1671 | // -- r0 : argc |
| 1672 | // -- sp[0] : new.target (optional) |
| 1673 | // -- sp[4] : argumentsList |
| 1674 | // -- sp[8] : target |
| 1675 | // -- sp[12] : receiver |
| 1676 | // ----------------------------------- |
| 1677 | |
| 1678 | // 1. Load target into r1 (if present), argumentsList into r0 (if present), |
| 1679 | // new.target into r3 (if present, otherwise use target), remove all |
| 1680 | // arguments from the stack (including the receiver), and push thisArgument |
| 1681 | // (if present) instead. |
| 1682 | { |
| 1683 | __ LoadRoot(r1, Heap::kUndefinedValueRootIndex); |
| 1684 | __ mov(r2, r1); |
| 1685 | __ str(r2, MemOperand(sp, r0, LSL, kPointerSizeLog2)); // receiver |
| 1686 | __ sub(r4, r0, Operand(1), SetCC); |
| 1687 | __ ldr(r1, MemOperand(sp, r4, LSL, kPointerSizeLog2), ge); // target |
| 1688 | __ mov(r3, r1); // new.target defaults to target |
| 1689 | __ sub(r4, r4, Operand(1), SetCC, ge); |
| 1690 | __ ldr(r2, MemOperand(sp, r4, LSL, kPointerSizeLog2), ge); // argumentsList |
| 1691 | __ sub(r4, r4, Operand(1), SetCC, ge); |
| 1692 | __ ldr(r3, MemOperand(sp, r4, LSL, kPointerSizeLog2), ge); // new.target |
| 1693 | __ add(sp, sp, Operand(r0, LSL, kPointerSizeLog2)); |
| 1694 | __ mov(r0, r2); |
| 1695 | } |
| 1696 | |
| 1697 | // ----------- S t a t e ------------- |
| 1698 | // -- r0 : argumentsList |
| 1699 | // -- r3 : new.target |
| 1700 | // -- r1 : target |
| 1701 | // -- sp[0] : receiver (undefined) |
| 1702 | // ----------------------------------- |
| 1703 | |
| 1704 | // 2. Make sure the target is actually a constructor. |
| 1705 | Label target_not_constructor; |
| 1706 | __ JumpIfSmi(r1, &target_not_constructor); |
| 1707 | __ ldr(r4, FieldMemOperand(r1, HeapObject::kMapOffset)); |
| 1708 | __ ldrb(r4, FieldMemOperand(r4, Map::kBitFieldOffset)); |
| 1709 | __ tst(r4, Operand(1 << Map::kIsConstructor)); |
| 1710 | __ b(eq, &target_not_constructor); |
| 1711 | |
| 1712 | // 3. Make sure the target is actually a constructor. |
| 1713 | Label new_target_not_constructor; |
| 1714 | __ JumpIfSmi(r3, &new_target_not_constructor); |
| 1715 | __ ldr(r4, FieldMemOperand(r3, HeapObject::kMapOffset)); |
| 1716 | __ ldrb(r4, FieldMemOperand(r4, Map::kBitFieldOffset)); |
| 1717 | __ tst(r4, Operand(1 << Map::kIsConstructor)); |
| 1718 | __ b(eq, &new_target_not_constructor); |
| 1719 | |
| 1720 | // 4a. Construct the target with the given new.target and argumentsList. |
| 1721 | __ Jump(masm->isolate()->builtins()->Apply(), RelocInfo::CODE_TARGET); |
| 1722 | |
| 1723 | // 4b. The target is not a constructor, throw an appropriate TypeError. |
| 1724 | __ bind(&target_not_constructor); |
| 1725 | { |
| 1726 | __ str(r1, MemOperand(sp, 0)); |
| 1727 | __ TailCallRuntime(Runtime::kThrowCalledNonCallable); |
| 1728 | } |
| 1729 | |
| 1730 | // 4c. The new.target is not a constructor, throw an appropriate TypeError. |
| 1731 | __ bind(&new_target_not_constructor); |
| 1732 | { |
| 1733 | __ str(r3, MemOperand(sp, 0)); |
| 1734 | __ TailCallRuntime(Runtime::kThrowCalledNonCallable); |
| 1735 | } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1736 | } |
| 1737 | |
| 1738 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1739 | static void ArgumentAdaptorStackCheck(MacroAssembler* masm, |
| 1740 | Label* stack_overflow) { |
| 1741 | // ----------- S t a t e ------------- |
| 1742 | // -- r0 : actual number of arguments |
| 1743 | // -- r1 : function (passed through to callee) |
| 1744 | // -- r2 : expected number of arguments |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1745 | // -- r3 : new target (passed through to callee) |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1746 | // ----------------------------------- |
| 1747 | // Check the stack for overflow. We are not trying to catch |
| 1748 | // interruptions (e.g. debug break and preemption) here, so the "real stack |
| 1749 | // limit" is checked. |
| 1750 | __ LoadRoot(r5, Heap::kRealStackLimitRootIndex); |
| 1751 | // Make r5 the space we have left. The stack might already be overflowed |
| 1752 | // here which will cause r5 to become negative. |
| 1753 | __ sub(r5, sp, r5); |
| 1754 | // Check if the arguments will overflow the stack. |
| 1755 | __ cmp(r5, Operand(r2, LSL, kPointerSizeLog2)); |
| 1756 | __ b(le, stack_overflow); // Signed comparison. |
| 1757 | } |
| 1758 | |
| 1759 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1760 | static void EnterArgumentsAdaptorFrame(MacroAssembler* masm) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1761 | __ SmiTag(r0); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1762 | __ mov(r4, Operand(Smi::FromInt(StackFrame::ARGUMENTS_ADAPTOR))); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1763 | __ stm(db_w, sp, r0.bit() | r1.bit() | r4.bit() | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1764 | (FLAG_enable_embedded_constant_pool ? pp.bit() : 0) | |
| 1765 | fp.bit() | lr.bit()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1766 | __ add(fp, sp, |
| 1767 | Operand(StandardFrameConstants::kFixedFrameSizeFromFp + kPointerSize)); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1768 | } |
| 1769 | |
| 1770 | |
| 1771 | static void LeaveArgumentsAdaptorFrame(MacroAssembler* masm) { |
| 1772 | // ----------- S t a t e ------------- |
| 1773 | // -- r0 : result being passed through |
| 1774 | // ----------------------------------- |
| 1775 | // Get the number of arguments passed (as a smi), tear down the frame and |
| 1776 | // then tear down the parameters. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1777 | __ ldr(r1, MemOperand(fp, -(StandardFrameConstants::kFixedFrameSizeFromFp + |
| 1778 | kPointerSize))); |
| 1779 | |
| 1780 | __ LeaveFrame(StackFrame::ARGUMENTS_ADAPTOR); |
| 1781 | __ add(sp, sp, Operand::PointerOffsetFromSmiKey(r1)); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1782 | __ add(sp, sp, Operand(kPointerSize)); // adjust for receiver |
| 1783 | } |
| 1784 | |
| 1785 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1786 | // static |
| 1787 | void Builtins::Generate_Apply(MacroAssembler* masm) { |
| 1788 | // ----------- S t a t e ------------- |
| 1789 | // -- r0 : argumentsList |
| 1790 | // -- r1 : target |
| 1791 | // -- r3 : new.target (checked to be constructor or undefined) |
| 1792 | // -- sp[0] : thisArgument |
| 1793 | // ----------------------------------- |
| 1794 | |
| 1795 | // Create the list of arguments from the array-like argumentsList. |
| 1796 | { |
| 1797 | Label create_arguments, create_array, create_runtime, done_create; |
| 1798 | __ JumpIfSmi(r0, &create_runtime); |
| 1799 | |
| 1800 | // Load the map of argumentsList into r2. |
| 1801 | __ ldr(r2, FieldMemOperand(r0, HeapObject::kMapOffset)); |
| 1802 | |
| 1803 | // Load native context into r4. |
| 1804 | __ ldr(r4, NativeContextMemOperand()); |
| 1805 | |
| 1806 | // Check if argumentsList is an (unmodified) arguments object. |
| 1807 | __ ldr(ip, ContextMemOperand(r4, Context::SLOPPY_ARGUMENTS_MAP_INDEX)); |
| 1808 | __ cmp(ip, r2); |
| 1809 | __ b(eq, &create_arguments); |
| 1810 | __ ldr(ip, ContextMemOperand(r4, Context::STRICT_ARGUMENTS_MAP_INDEX)); |
| 1811 | __ cmp(ip, r2); |
| 1812 | __ b(eq, &create_arguments); |
| 1813 | |
| 1814 | // Check if argumentsList is a fast JSArray. |
| 1815 | __ CompareInstanceType(r2, ip, JS_ARRAY_TYPE); |
| 1816 | __ b(eq, &create_array); |
| 1817 | |
| 1818 | // Ask the runtime to create the list (actually a FixedArray). |
| 1819 | __ bind(&create_runtime); |
| 1820 | { |
| 1821 | FrameAndConstantPoolScope scope(masm, StackFrame::INTERNAL); |
| 1822 | __ Push(r1, r3, r0); |
| 1823 | __ CallRuntime(Runtime::kCreateListFromArrayLike); |
| 1824 | __ Pop(r1, r3); |
| 1825 | __ ldr(r2, FieldMemOperand(r0, FixedArray::kLengthOffset)); |
| 1826 | __ SmiUntag(r2); |
| 1827 | } |
| 1828 | __ jmp(&done_create); |
| 1829 | |
| 1830 | // Try to create the list from an arguments object. |
| 1831 | __ bind(&create_arguments); |
| 1832 | __ ldr(r2, |
| 1833 | FieldMemOperand(r0, JSObject::kHeaderSize + |
| 1834 | Heap::kArgumentsLengthIndex * kPointerSize)); |
| 1835 | __ ldr(r4, FieldMemOperand(r0, JSObject::kElementsOffset)); |
| 1836 | __ ldr(ip, FieldMemOperand(r4, FixedArray::kLengthOffset)); |
| 1837 | __ cmp(r2, ip); |
| 1838 | __ b(ne, &create_runtime); |
| 1839 | __ SmiUntag(r2); |
| 1840 | __ mov(r0, r4); |
| 1841 | __ b(&done_create); |
| 1842 | |
| 1843 | // Try to create the list from a JSArray object. |
| 1844 | __ bind(&create_array); |
| 1845 | __ ldr(r2, FieldMemOperand(r2, Map::kBitField2Offset)); |
| 1846 | __ DecodeField<Map::ElementsKindBits>(r2); |
| 1847 | STATIC_ASSERT(FAST_SMI_ELEMENTS == 0); |
| 1848 | STATIC_ASSERT(FAST_HOLEY_SMI_ELEMENTS == 1); |
| 1849 | STATIC_ASSERT(FAST_ELEMENTS == 2); |
| 1850 | __ cmp(r2, Operand(FAST_ELEMENTS)); |
| 1851 | __ b(hi, &create_runtime); |
| 1852 | __ cmp(r2, Operand(FAST_HOLEY_SMI_ELEMENTS)); |
| 1853 | __ b(eq, &create_runtime); |
| 1854 | __ ldr(r2, FieldMemOperand(r0, JSArray::kLengthOffset)); |
| 1855 | __ ldr(r0, FieldMemOperand(r0, JSArray::kElementsOffset)); |
| 1856 | __ SmiUntag(r2); |
| 1857 | |
| 1858 | __ bind(&done_create); |
| 1859 | } |
| 1860 | |
| 1861 | // Check for stack overflow. |
| 1862 | { |
| 1863 | // Check the stack for overflow. We are not trying to catch interruptions |
| 1864 | // (i.e. debug break and preemption) here, so check the "real stack limit". |
| 1865 | Label done; |
| 1866 | __ LoadRoot(ip, Heap::kRealStackLimitRootIndex); |
| 1867 | // Make ip the space we have left. The stack might already be overflowed |
| 1868 | // here which will cause ip to become negative. |
| 1869 | __ sub(ip, sp, ip); |
| 1870 | // Check if the arguments will overflow the stack. |
| 1871 | __ cmp(ip, Operand(r2, LSL, kPointerSizeLog2)); |
| 1872 | __ b(gt, &done); // Signed comparison. |
| 1873 | __ TailCallRuntime(Runtime::kThrowStackOverflow); |
| 1874 | __ bind(&done); |
| 1875 | } |
| 1876 | |
| 1877 | // ----------- S t a t e ------------- |
| 1878 | // -- r1 : target |
| 1879 | // -- r0 : args (a FixedArray built from argumentsList) |
| 1880 | // -- r2 : len (number of elements to push from args) |
| 1881 | // -- r3 : new.target (checked to be constructor or undefined) |
| 1882 | // -- sp[0] : thisArgument |
| 1883 | // ----------------------------------- |
| 1884 | |
| 1885 | // Push arguments onto the stack (thisArgument is already on the stack). |
| 1886 | { |
| 1887 | __ mov(r4, Operand(0)); |
| 1888 | Label done, loop; |
| 1889 | __ bind(&loop); |
| 1890 | __ cmp(r4, r2); |
| 1891 | __ b(eq, &done); |
| 1892 | __ add(ip, r0, Operand(r4, LSL, kPointerSizeLog2)); |
| 1893 | __ ldr(ip, FieldMemOperand(ip, FixedArray::kHeaderSize)); |
| 1894 | __ Push(ip); |
| 1895 | __ add(r4, r4, Operand(1)); |
| 1896 | __ b(&loop); |
| 1897 | __ bind(&done); |
| 1898 | __ Move(r0, r4); |
| 1899 | } |
| 1900 | |
| 1901 | // Dispatch to Call or Construct depending on whether new.target is undefined. |
| 1902 | { |
| 1903 | __ CompareRoot(r3, Heap::kUndefinedValueRootIndex); |
| 1904 | __ Jump(masm->isolate()->builtins()->Call(), RelocInfo::CODE_TARGET, eq); |
| 1905 | __ Jump(masm->isolate()->builtins()->Construct(), RelocInfo::CODE_TARGET); |
| 1906 | } |
| 1907 | } |
| 1908 | |
| 1909 | |
| 1910 | // static |
| 1911 | void Builtins::Generate_CallFunction(MacroAssembler* masm, |
| 1912 | ConvertReceiverMode mode) { |
| 1913 | // ----------- S t a t e ------------- |
| 1914 | // -- r0 : the number of arguments (not including the receiver) |
| 1915 | // -- r1 : the function to call (checked to be a JSFunction) |
| 1916 | // ----------------------------------- |
| 1917 | __ AssertFunction(r1); |
| 1918 | |
| 1919 | // See ES6 section 9.2.1 [[Call]] ( thisArgument, argumentsList) |
| 1920 | // Check that the function is not a "classConstructor". |
| 1921 | Label class_constructor; |
| 1922 | __ ldr(r2, FieldMemOperand(r1, JSFunction::kSharedFunctionInfoOffset)); |
| 1923 | __ ldrb(r3, FieldMemOperand(r2, SharedFunctionInfo::kFunctionKindByteOffset)); |
| 1924 | __ tst(r3, Operand(SharedFunctionInfo::kClassConstructorBitsWithinByte)); |
| 1925 | __ b(ne, &class_constructor); |
| 1926 | |
| 1927 | // Enter the context of the function; ToObject has to run in the function |
| 1928 | // context, and we also need to take the global proxy from the function |
| 1929 | // context in case of conversion. |
| 1930 | STATIC_ASSERT(SharedFunctionInfo::kNativeByteOffset == |
| 1931 | SharedFunctionInfo::kStrictModeByteOffset); |
| 1932 | __ ldr(cp, FieldMemOperand(r1, JSFunction::kContextOffset)); |
| 1933 | // We need to convert the receiver for non-native sloppy mode functions. |
| 1934 | Label done_convert; |
| 1935 | __ ldrb(r3, FieldMemOperand(r2, SharedFunctionInfo::kNativeByteOffset)); |
| 1936 | __ tst(r3, Operand((1 << SharedFunctionInfo::kNativeBitWithinByte) | |
| 1937 | (1 << SharedFunctionInfo::kStrictModeBitWithinByte))); |
| 1938 | __ b(ne, &done_convert); |
| 1939 | { |
| 1940 | // ----------- S t a t e ------------- |
| 1941 | // -- r0 : the number of arguments (not including the receiver) |
| 1942 | // -- r1 : the function to call (checked to be a JSFunction) |
| 1943 | // -- r2 : the shared function info. |
| 1944 | // -- cp : the function context. |
| 1945 | // ----------------------------------- |
| 1946 | |
| 1947 | if (mode == ConvertReceiverMode::kNullOrUndefined) { |
| 1948 | // Patch receiver to global proxy. |
| 1949 | __ LoadGlobalProxy(r3); |
| 1950 | } else { |
| 1951 | Label convert_to_object, convert_receiver; |
| 1952 | __ ldr(r3, MemOperand(sp, r0, LSL, kPointerSizeLog2)); |
| 1953 | __ JumpIfSmi(r3, &convert_to_object); |
| 1954 | STATIC_ASSERT(LAST_JS_RECEIVER_TYPE == LAST_TYPE); |
| 1955 | __ CompareObjectType(r3, r4, r4, FIRST_JS_RECEIVER_TYPE); |
| 1956 | __ b(hs, &done_convert); |
| 1957 | if (mode != ConvertReceiverMode::kNotNullOrUndefined) { |
| 1958 | Label convert_global_proxy; |
| 1959 | __ JumpIfRoot(r3, Heap::kUndefinedValueRootIndex, |
| 1960 | &convert_global_proxy); |
| 1961 | __ JumpIfNotRoot(r3, Heap::kNullValueRootIndex, &convert_to_object); |
| 1962 | __ bind(&convert_global_proxy); |
| 1963 | { |
| 1964 | // Patch receiver to global proxy. |
| 1965 | __ LoadGlobalProxy(r3); |
| 1966 | } |
| 1967 | __ b(&convert_receiver); |
| 1968 | } |
| 1969 | __ bind(&convert_to_object); |
| 1970 | { |
| 1971 | // Convert receiver using ToObject. |
| 1972 | // TODO(bmeurer): Inline the allocation here to avoid building the frame |
| 1973 | // in the fast case? (fall back to AllocateInNewSpace?) |
| 1974 | FrameAndConstantPoolScope scope(masm, StackFrame::INTERNAL); |
| 1975 | __ SmiTag(r0); |
| 1976 | __ Push(r0, r1); |
| 1977 | __ mov(r0, r3); |
| 1978 | ToObjectStub stub(masm->isolate()); |
| 1979 | __ CallStub(&stub); |
| 1980 | __ mov(r3, r0); |
| 1981 | __ Pop(r0, r1); |
| 1982 | __ SmiUntag(r0); |
| 1983 | } |
| 1984 | __ ldr(r2, FieldMemOperand(r1, JSFunction::kSharedFunctionInfoOffset)); |
| 1985 | __ bind(&convert_receiver); |
| 1986 | } |
| 1987 | __ str(r3, MemOperand(sp, r0, LSL, kPointerSizeLog2)); |
| 1988 | } |
| 1989 | __ bind(&done_convert); |
| 1990 | |
| 1991 | // ----------- S t a t e ------------- |
| 1992 | // -- r0 : the number of arguments (not including the receiver) |
| 1993 | // -- r1 : the function to call (checked to be a JSFunction) |
| 1994 | // -- r2 : the shared function info. |
| 1995 | // -- cp : the function context. |
| 1996 | // ----------------------------------- |
| 1997 | |
| 1998 | __ ldr(r2, |
| 1999 | FieldMemOperand(r2, SharedFunctionInfo::kFormalParameterCountOffset)); |
| 2000 | __ SmiUntag(r2); |
| 2001 | ParameterCount actual(r0); |
| 2002 | ParameterCount expected(r2); |
| 2003 | __ InvokeFunctionCode(r1, no_reg, expected, actual, JUMP_FUNCTION, |
| 2004 | CheckDebugStepCallWrapper()); |
| 2005 | |
| 2006 | // The function is a "classConstructor", need to raise an exception. |
| 2007 | __ bind(&class_constructor); |
| 2008 | { |
| 2009 | FrameScope frame(masm, StackFrame::INTERNAL); |
| 2010 | __ push(r1); |
| 2011 | __ CallRuntime(Runtime::kThrowConstructorNonCallableError); |
| 2012 | } |
| 2013 | } |
| 2014 | |
| 2015 | |
| 2016 | namespace { |
| 2017 | |
| 2018 | void Generate_PushBoundArguments(MacroAssembler* masm) { |
| 2019 | // ----------- S t a t e ------------- |
| 2020 | // -- r0 : the number of arguments (not including the receiver) |
| 2021 | // -- r1 : target (checked to be a JSBoundFunction) |
| 2022 | // -- r3 : new.target (only in case of [[Construct]]) |
| 2023 | // ----------------------------------- |
| 2024 | |
| 2025 | // Load [[BoundArguments]] into r2 and length of that into r4. |
| 2026 | Label no_bound_arguments; |
| 2027 | __ ldr(r2, FieldMemOperand(r1, JSBoundFunction::kBoundArgumentsOffset)); |
| 2028 | __ ldr(r4, FieldMemOperand(r2, FixedArray::kLengthOffset)); |
| 2029 | __ SmiUntag(r4); |
| 2030 | __ cmp(r4, Operand(0)); |
| 2031 | __ b(eq, &no_bound_arguments); |
| 2032 | { |
| 2033 | // ----------- S t a t e ------------- |
| 2034 | // -- r0 : the number of arguments (not including the receiver) |
| 2035 | // -- r1 : target (checked to be a JSBoundFunction) |
| 2036 | // -- r2 : the [[BoundArguments]] (implemented as FixedArray) |
| 2037 | // -- r3 : new.target (only in case of [[Construct]]) |
| 2038 | // -- r4 : the number of [[BoundArguments]] |
| 2039 | // ----------------------------------- |
| 2040 | |
| 2041 | // Reserve stack space for the [[BoundArguments]]. |
| 2042 | { |
| 2043 | Label done; |
| 2044 | __ sub(sp, sp, Operand(r4, LSL, kPointerSizeLog2)); |
| 2045 | // Check the stack for overflow. We are not trying to catch interruptions |
| 2046 | // (i.e. debug break and preemption) here, so check the "real stack |
| 2047 | // limit". |
| 2048 | __ CompareRoot(sp, Heap::kRealStackLimitRootIndex); |
| 2049 | __ b(gt, &done); // Signed comparison. |
| 2050 | // Restore the stack pointer. |
| 2051 | __ add(sp, sp, Operand(r4, LSL, kPointerSizeLog2)); |
| 2052 | { |
| 2053 | FrameScope scope(masm, StackFrame::MANUAL); |
| 2054 | __ EnterFrame(StackFrame::INTERNAL); |
| 2055 | __ CallRuntime(Runtime::kThrowStackOverflow); |
| 2056 | } |
| 2057 | __ bind(&done); |
| 2058 | } |
| 2059 | |
| 2060 | // Relocate arguments down the stack. |
| 2061 | { |
| 2062 | Label loop, done_loop; |
| 2063 | __ mov(r5, Operand(0)); |
| 2064 | __ bind(&loop); |
| 2065 | __ cmp(r5, r0); |
| 2066 | __ b(gt, &done_loop); |
| 2067 | __ ldr(ip, MemOperand(sp, r4, LSL, kPointerSizeLog2)); |
| 2068 | __ str(ip, MemOperand(sp, r5, LSL, kPointerSizeLog2)); |
| 2069 | __ add(r4, r4, Operand(1)); |
| 2070 | __ add(r5, r5, Operand(1)); |
| 2071 | __ b(&loop); |
| 2072 | __ bind(&done_loop); |
| 2073 | } |
| 2074 | |
| 2075 | // Copy [[BoundArguments]] to the stack (below the arguments). |
| 2076 | { |
| 2077 | Label loop; |
| 2078 | __ ldr(r4, FieldMemOperand(r2, FixedArray::kLengthOffset)); |
| 2079 | __ SmiUntag(r4); |
| 2080 | __ add(r2, r2, Operand(FixedArray::kHeaderSize - kHeapObjectTag)); |
| 2081 | __ bind(&loop); |
| 2082 | __ sub(r4, r4, Operand(1), SetCC); |
| 2083 | __ ldr(ip, MemOperand(r2, r4, LSL, kPointerSizeLog2)); |
| 2084 | __ str(ip, MemOperand(sp, r0, LSL, kPointerSizeLog2)); |
| 2085 | __ add(r0, r0, Operand(1)); |
| 2086 | __ b(gt, &loop); |
| 2087 | } |
| 2088 | } |
| 2089 | __ bind(&no_bound_arguments); |
| 2090 | } |
| 2091 | |
| 2092 | } // namespace |
| 2093 | |
| 2094 | |
| 2095 | // static |
| 2096 | void Builtins::Generate_CallBoundFunction(MacroAssembler* masm) { |
| 2097 | // ----------- S t a t e ------------- |
| 2098 | // -- r0 : the number of arguments (not including the receiver) |
| 2099 | // -- r1 : the function to call (checked to be a JSBoundFunction) |
| 2100 | // ----------------------------------- |
| 2101 | __ AssertBoundFunction(r1); |
| 2102 | |
| 2103 | // Patch the receiver to [[BoundThis]]. |
| 2104 | __ ldr(ip, FieldMemOperand(r1, JSBoundFunction::kBoundThisOffset)); |
| 2105 | __ str(ip, MemOperand(sp, r0, LSL, kPointerSizeLog2)); |
| 2106 | |
| 2107 | // Push the [[BoundArguments]] onto the stack. |
| 2108 | Generate_PushBoundArguments(masm); |
| 2109 | |
| 2110 | // Call the [[BoundTargetFunction]] via the Call builtin. |
| 2111 | __ ldr(r1, FieldMemOperand(r1, JSBoundFunction::kBoundTargetFunctionOffset)); |
| 2112 | __ mov(ip, Operand(ExternalReference(Builtins::kCall_ReceiverIsAny, |
| 2113 | masm->isolate()))); |
| 2114 | __ ldr(ip, MemOperand(ip)); |
| 2115 | __ add(pc, ip, Operand(Code::kHeaderSize - kHeapObjectTag)); |
| 2116 | } |
| 2117 | |
| 2118 | |
| 2119 | // static |
| 2120 | void Builtins::Generate_Call(MacroAssembler* masm, ConvertReceiverMode mode) { |
| 2121 | // ----------- S t a t e ------------- |
| 2122 | // -- r0 : the number of arguments (not including the receiver) |
| 2123 | // -- r1 : the target to call (can be any Object). |
| 2124 | // ----------------------------------- |
| 2125 | |
| 2126 | Label non_callable, non_function, non_smi; |
| 2127 | __ JumpIfSmi(r1, &non_callable); |
| 2128 | __ bind(&non_smi); |
| 2129 | __ CompareObjectType(r1, r4, r5, JS_FUNCTION_TYPE); |
| 2130 | __ Jump(masm->isolate()->builtins()->CallFunction(mode), |
| 2131 | RelocInfo::CODE_TARGET, eq); |
| 2132 | __ cmp(r5, Operand(JS_BOUND_FUNCTION_TYPE)); |
| 2133 | __ Jump(masm->isolate()->builtins()->CallBoundFunction(), |
| 2134 | RelocInfo::CODE_TARGET, eq); |
| 2135 | __ cmp(r5, Operand(JS_PROXY_TYPE)); |
| 2136 | __ b(ne, &non_function); |
| 2137 | |
| 2138 | // 1. Runtime fallback for Proxy [[Call]]. |
| 2139 | __ Push(r1); |
| 2140 | // Increase the arguments size to include the pushed function and the |
| 2141 | // existing receiver on the stack. |
| 2142 | __ add(r0, r0, Operand(2)); |
| 2143 | // Tail-call to the runtime. |
| 2144 | __ JumpToExternalReference( |
| 2145 | ExternalReference(Runtime::kJSProxyCall, masm->isolate())); |
| 2146 | |
| 2147 | // 2. Call to something else, which might have a [[Call]] internal method (if |
| 2148 | // not we raise an exception). |
| 2149 | __ bind(&non_function); |
| 2150 | // Check if target has a [[Call]] internal method. |
| 2151 | __ ldrb(r4, FieldMemOperand(r4, Map::kBitFieldOffset)); |
| 2152 | __ tst(r4, Operand(1 << Map::kIsCallable)); |
| 2153 | __ b(eq, &non_callable); |
| 2154 | // Overwrite the original receiver the (original) target. |
| 2155 | __ str(r1, MemOperand(sp, r0, LSL, kPointerSizeLog2)); |
| 2156 | // Let the "call_as_function_delegate" take care of the rest. |
| 2157 | __ LoadNativeContextSlot(Context::CALL_AS_FUNCTION_DELEGATE_INDEX, r1); |
| 2158 | __ Jump(masm->isolate()->builtins()->CallFunction( |
| 2159 | ConvertReceiverMode::kNotNullOrUndefined), |
| 2160 | RelocInfo::CODE_TARGET); |
| 2161 | |
| 2162 | // 3. Call to something that is not callable. |
| 2163 | __ bind(&non_callable); |
| 2164 | { |
| 2165 | FrameAndConstantPoolScope scope(masm, StackFrame::INTERNAL); |
| 2166 | __ Push(r1); |
| 2167 | __ CallRuntime(Runtime::kThrowCalledNonCallable); |
| 2168 | } |
| 2169 | } |
| 2170 | |
| 2171 | |
| 2172 | // static |
| 2173 | void Builtins::Generate_ConstructFunction(MacroAssembler* masm) { |
| 2174 | // ----------- S t a t e ------------- |
| 2175 | // -- r0 : the number of arguments (not including the receiver) |
| 2176 | // -- r1 : the constructor to call (checked to be a JSFunction) |
| 2177 | // -- r3 : the new target (checked to be a constructor) |
| 2178 | // ----------------------------------- |
| 2179 | __ AssertFunction(r1); |
| 2180 | |
| 2181 | // Calling convention for function specific ConstructStubs require |
| 2182 | // r2 to contain either an AllocationSite or undefined. |
| 2183 | __ LoadRoot(r2, Heap::kUndefinedValueRootIndex); |
| 2184 | |
| 2185 | // Tail call to the function-specific construct stub (still in the caller |
| 2186 | // context at this point). |
| 2187 | __ ldr(r4, FieldMemOperand(r1, JSFunction::kSharedFunctionInfoOffset)); |
| 2188 | __ ldr(r4, FieldMemOperand(r4, SharedFunctionInfo::kConstructStubOffset)); |
| 2189 | __ add(pc, r4, Operand(Code::kHeaderSize - kHeapObjectTag)); |
| 2190 | } |
| 2191 | |
| 2192 | |
| 2193 | // static |
| 2194 | void Builtins::Generate_ConstructBoundFunction(MacroAssembler* masm) { |
| 2195 | // ----------- S t a t e ------------- |
| 2196 | // -- r0 : the number of arguments (not including the receiver) |
| 2197 | // -- r1 : the function to call (checked to be a JSBoundFunction) |
| 2198 | // -- r3 : the new target (checked to be a constructor) |
| 2199 | // ----------------------------------- |
| 2200 | __ AssertBoundFunction(r1); |
| 2201 | |
| 2202 | // Push the [[BoundArguments]] onto the stack. |
| 2203 | Generate_PushBoundArguments(masm); |
| 2204 | |
| 2205 | // Patch new.target to [[BoundTargetFunction]] if new.target equals target. |
| 2206 | __ cmp(r1, r3); |
| 2207 | __ ldr(r3, FieldMemOperand(r1, JSBoundFunction::kBoundTargetFunctionOffset), |
| 2208 | eq); |
| 2209 | |
| 2210 | // Construct the [[BoundTargetFunction]] via the Construct builtin. |
| 2211 | __ ldr(r1, FieldMemOperand(r1, JSBoundFunction::kBoundTargetFunctionOffset)); |
| 2212 | __ mov(ip, Operand(ExternalReference(Builtins::kConstruct, masm->isolate()))); |
| 2213 | __ ldr(ip, MemOperand(ip)); |
| 2214 | __ add(pc, ip, Operand(Code::kHeaderSize - kHeapObjectTag)); |
| 2215 | } |
| 2216 | |
| 2217 | |
| 2218 | // static |
| 2219 | void Builtins::Generate_ConstructProxy(MacroAssembler* masm) { |
| 2220 | // ----------- S t a t e ------------- |
| 2221 | // -- r0 : the number of arguments (not including the receiver) |
| 2222 | // -- r1 : the constructor to call (checked to be a JSProxy) |
| 2223 | // -- r3 : the new target (either the same as the constructor or |
| 2224 | // the JSFunction on which new was invoked initially) |
| 2225 | // ----------------------------------- |
| 2226 | |
| 2227 | // Call into the Runtime for Proxy [[Construct]]. |
| 2228 | __ Push(r1); |
| 2229 | __ Push(r3); |
| 2230 | // Include the pushed new_target, constructor and the receiver. |
| 2231 | __ add(r0, r0, Operand(3)); |
| 2232 | // Tail-call to the runtime. |
| 2233 | __ JumpToExternalReference( |
| 2234 | ExternalReference(Runtime::kJSProxyConstruct, masm->isolate())); |
| 2235 | } |
| 2236 | |
| 2237 | |
| 2238 | // static |
| 2239 | void Builtins::Generate_Construct(MacroAssembler* masm) { |
| 2240 | // ----------- S t a t e ------------- |
| 2241 | // -- r0 : the number of arguments (not including the receiver) |
| 2242 | // -- r1 : the constructor to call (can be any Object) |
| 2243 | // -- r3 : the new target (either the same as the constructor or |
| 2244 | // the JSFunction on which new was invoked initially) |
| 2245 | // ----------------------------------- |
| 2246 | |
| 2247 | // Check if target is a Smi. |
| 2248 | Label non_constructor; |
| 2249 | __ JumpIfSmi(r1, &non_constructor); |
| 2250 | |
| 2251 | // Dispatch based on instance type. |
| 2252 | __ CompareObjectType(r1, r4, r5, JS_FUNCTION_TYPE); |
| 2253 | __ Jump(masm->isolate()->builtins()->ConstructFunction(), |
| 2254 | RelocInfo::CODE_TARGET, eq); |
| 2255 | |
| 2256 | // Check if target has a [[Construct]] internal method. |
| 2257 | __ ldrb(r2, FieldMemOperand(r4, Map::kBitFieldOffset)); |
| 2258 | __ tst(r2, Operand(1 << Map::kIsConstructor)); |
| 2259 | __ b(eq, &non_constructor); |
| 2260 | |
| 2261 | // Only dispatch to bound functions after checking whether they are |
| 2262 | // constructors. |
| 2263 | __ cmp(r5, Operand(JS_BOUND_FUNCTION_TYPE)); |
| 2264 | __ Jump(masm->isolate()->builtins()->ConstructBoundFunction(), |
| 2265 | RelocInfo::CODE_TARGET, eq); |
| 2266 | |
| 2267 | // Only dispatch to proxies after checking whether they are constructors. |
| 2268 | __ cmp(r5, Operand(JS_PROXY_TYPE)); |
| 2269 | __ Jump(masm->isolate()->builtins()->ConstructProxy(), RelocInfo::CODE_TARGET, |
| 2270 | eq); |
| 2271 | |
| 2272 | // Called Construct on an exotic Object with a [[Construct]] internal method. |
| 2273 | { |
| 2274 | // Overwrite the original receiver with the (original) target. |
| 2275 | __ str(r1, MemOperand(sp, r0, LSL, kPointerSizeLog2)); |
| 2276 | // Let the "call_as_constructor_delegate" take care of the rest. |
| 2277 | __ LoadNativeContextSlot(Context::CALL_AS_CONSTRUCTOR_DELEGATE_INDEX, r1); |
| 2278 | __ Jump(masm->isolate()->builtins()->CallFunction(), |
| 2279 | RelocInfo::CODE_TARGET); |
| 2280 | } |
| 2281 | |
| 2282 | // Called Construct on an Object that doesn't have a [[Construct]] internal |
| 2283 | // method. |
| 2284 | __ bind(&non_constructor); |
| 2285 | __ Jump(masm->isolate()->builtins()->ConstructedNonConstructable(), |
| 2286 | RelocInfo::CODE_TARGET); |
| 2287 | } |
| 2288 | |
| 2289 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2290 | void Builtins::Generate_ArgumentsAdaptorTrampoline(MacroAssembler* masm) { |
| 2291 | // ----------- S t a t e ------------- |
| 2292 | // -- r0 : actual number of arguments |
| 2293 | // -- r1 : function (passed through to callee) |
| 2294 | // -- r2 : expected number of arguments |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 2295 | // -- r3 : new target (passed through to callee) |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2296 | // ----------------------------------- |
| 2297 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 2298 | Label invoke, dont_adapt_arguments, stack_overflow; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2299 | |
| 2300 | Label enough, too_few; |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 2301 | __ cmp(r0, r2); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2302 | __ b(lt, &too_few); |
| 2303 | __ cmp(r2, Operand(SharedFunctionInfo::kDontAdaptArgumentsSentinel)); |
| 2304 | __ b(eq, &dont_adapt_arguments); |
| 2305 | |
| 2306 | { // Enough parameters: actual >= expected |
| 2307 | __ bind(&enough); |
| 2308 | EnterArgumentsAdaptorFrame(masm); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 2309 | ArgumentAdaptorStackCheck(masm, &stack_overflow); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2310 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 2311 | // Calculate copy start address into r0 and copy end address into r4. |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2312 | // r0: actual number of arguments as a smi |
| 2313 | // r1: function |
| 2314 | // r2: expected number of arguments |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 2315 | // r3: new target (passed through to callee) |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2316 | __ add(r0, fp, Operand::PointerOffsetFromSmiKey(r0)); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2317 | // adjust for return address and receiver |
| 2318 | __ add(r0, r0, Operand(2 * kPointerSize)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 2319 | __ sub(r4, r0, Operand(r2, LSL, kPointerSizeLog2)); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2320 | |
| 2321 | // Copy the arguments (including the receiver) to the new stack frame. |
| 2322 | // r0: copy start address |
| 2323 | // r1: function |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 2324 | // r2: expected number of arguments |
| 2325 | // r3: new target (passed through to callee) |
| 2326 | // r4: copy end address |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2327 | |
| 2328 | Label copy; |
| 2329 | __ bind(©); |
| 2330 | __ ldr(ip, MemOperand(r0, 0)); |
| 2331 | __ push(ip); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 2332 | __ cmp(r0, r4); // Compare before moving to next argument. |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2333 | __ sub(r0, r0, Operand(kPointerSize)); |
| 2334 | __ b(ne, ©); |
| 2335 | |
| 2336 | __ b(&invoke); |
| 2337 | } |
| 2338 | |
| 2339 | { // Too few parameters: Actual < expected |
| 2340 | __ bind(&too_few); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 2341 | |
| 2342 | // If the function is strong we need to throw an error. |
| 2343 | Label no_strong_error; |
| 2344 | __ ldr(r4, FieldMemOperand(r1, JSFunction::kSharedFunctionInfoOffset)); |
| 2345 | __ ldr(r5, FieldMemOperand(r4, SharedFunctionInfo::kCompilerHintsOffset)); |
| 2346 | __ tst(r5, Operand(1 << (SharedFunctionInfo::kStrongModeFunction + |
| 2347 | kSmiTagSize))); |
| 2348 | __ b(eq, &no_strong_error); |
| 2349 | |
| 2350 | // What we really care about is the required number of arguments. |
| 2351 | __ ldr(r4, FieldMemOperand(r4, SharedFunctionInfo::kLengthOffset)); |
| 2352 | __ cmp(r0, Operand::SmiUntag(r4)); |
| 2353 | __ b(ge, &no_strong_error); |
| 2354 | |
| 2355 | { |
| 2356 | FrameScope frame(masm, StackFrame::MANUAL); |
| 2357 | EnterArgumentsAdaptorFrame(masm); |
| 2358 | __ CallRuntime(Runtime::kThrowStrongModeTooFewArguments); |
| 2359 | } |
| 2360 | |
| 2361 | __ bind(&no_strong_error); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2362 | EnterArgumentsAdaptorFrame(masm); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 2363 | ArgumentAdaptorStackCheck(masm, &stack_overflow); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2364 | |
| 2365 | // Calculate copy start address into r0 and copy end address is fp. |
| 2366 | // r0: actual number of arguments as a smi |
| 2367 | // r1: function |
| 2368 | // r2: expected number of arguments |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 2369 | // r3: new target (passed through to callee) |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2370 | __ add(r0, fp, Operand::PointerOffsetFromSmiKey(r0)); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2371 | |
| 2372 | // Copy the arguments (including the receiver) to the new stack frame. |
| 2373 | // r0: copy start address |
| 2374 | // r1: function |
| 2375 | // r2: expected number of arguments |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 2376 | // r3: new target (passed through to callee) |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2377 | Label copy; |
| 2378 | __ bind(©); |
| 2379 | // Adjust load for return address and receiver. |
| 2380 | __ ldr(ip, MemOperand(r0, 2 * kPointerSize)); |
| 2381 | __ push(ip); |
| 2382 | __ cmp(r0, fp); // Compare before moving to next argument. |
| 2383 | __ sub(r0, r0, Operand(kPointerSize)); |
| 2384 | __ b(ne, ©); |
| 2385 | |
| 2386 | // Fill the remaining expected arguments with undefined. |
| 2387 | // r1: function |
| 2388 | // r2: expected number of arguments |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 2389 | // r3: new target (passed through to callee) |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2390 | __ LoadRoot(ip, Heap::kUndefinedValueRootIndex); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 2391 | __ sub(r4, fp, Operand(r2, LSL, kPointerSizeLog2)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2392 | // Adjust for frame. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 2393 | __ sub(r4, r4, Operand(StandardFrameConstants::kFixedFrameSizeFromFp + |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2394 | 2 * kPointerSize)); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2395 | |
| 2396 | Label fill; |
| 2397 | __ bind(&fill); |
| 2398 | __ push(ip); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 2399 | __ cmp(sp, r4); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2400 | __ b(ne, &fill); |
| 2401 | } |
| 2402 | |
| 2403 | // Call the entry point. |
| 2404 | __ bind(&invoke); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 2405 | __ mov(r0, r2); |
| 2406 | // r0 : expected number of arguments |
| 2407 | // r1 : function (passed through to callee) |
| 2408 | // r3 : new target (passed through to callee) |
| 2409 | __ ldr(r4, FieldMemOperand(r1, JSFunction::kCodeEntryOffset)); |
| 2410 | __ Call(r4); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2411 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 2412 | // Store offset of return address for deoptimizer. |
| 2413 | masm->isolate()->heap()->SetArgumentsAdaptorDeoptPCOffset(masm->pc_offset()); |
| 2414 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2415 | // Exit frame and return. |
| 2416 | LeaveArgumentsAdaptorFrame(masm); |
| 2417 | __ Jump(lr); |
| 2418 | |
| 2419 | |
| 2420 | // ------------------------------------------- |
| 2421 | // Dont adapt arguments. |
| 2422 | // ------------------------------------------- |
| 2423 | __ bind(&dont_adapt_arguments); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 2424 | __ ldr(r4, FieldMemOperand(r1, JSFunction::kCodeEntryOffset)); |
| 2425 | __ Jump(r4); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2426 | |
| 2427 | __ bind(&stack_overflow); |
| 2428 | { |
| 2429 | FrameScope frame(masm, StackFrame::MANUAL); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 2430 | __ CallRuntime(Runtime::kThrowStackOverflow); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2431 | __ bkpt(0); |
| 2432 | } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2433 | } |
| 2434 | |
| 2435 | |
| 2436 | #undef __ |
| 2437 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 2438 | } // namespace internal |
| 2439 | } // namespace v8 |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 2440 | |
| 2441 | #endif // V8_TARGET_ARCH_ARM |