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| 1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 the V8 project authors. All rights reserved. |
| 2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
| 3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
| 4 // met: | 4 // met: |
| 5 // | 5 // |
| 6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
| 7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
| 8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
| 9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
| 10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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| 288 } | 288 } |
| 289 __ Ret(); | 289 __ Ret(); |
| 290 } | 290 } |
| 291 | 291 |
| 292 | 292 |
| 293 static void CallRuntimePassFunction( | 293 static void CallRuntimePassFunction( |
| 294 MacroAssembler* masm, Runtime::FunctionId function_id) { | 294 MacroAssembler* masm, Runtime::FunctionId function_id) { |
| 295 FrameScope scope(masm, StackFrame::INTERNAL); | 295 FrameScope scope(masm, StackFrame::INTERNAL); |
| 296 // Push a copy of the function onto the stack. | 296 // Push a copy of the function onto the stack. |
| 297 __ push(r1); | 297 __ push(r1); |
| 298 // Push call kind information and function as parameter to the runtime call. | 298 // Push function as parameter to the runtime call. |
| 299 __ Push(r5, r1); | 299 __ Push(r1); |
| 300 | 300 |
| 301 __ CallRuntime(function_id, 1); | 301 __ CallRuntime(function_id, 1); |
| 302 // Restore call kind information. | |
| 303 __ pop(r5); | |
| 304 // Restore receiver. | 302 // Restore receiver. |
| 305 __ pop(r1); | 303 __ pop(r1); |
| 306 } | 304 } |
| 307 | 305 |
| 308 | 306 |
| 309 static void GenerateTailCallToSharedCode(MacroAssembler* masm) { | 307 static void GenerateTailCallToSharedCode(MacroAssembler* masm) { |
| 310 __ ldr(r2, FieldMemOperand(r1, JSFunction::kSharedFunctionInfoOffset)); | 308 __ ldr(r2, FieldMemOperand(r1, JSFunction::kSharedFunctionInfoOffset)); |
| 311 __ ldr(r2, FieldMemOperand(r2, SharedFunctionInfo::kCodeOffset)); | 309 __ ldr(r2, FieldMemOperand(r2, SharedFunctionInfo::kCodeOffset)); |
| 312 __ add(r2, r2, Operand(Code::kHeaderSize - kHeapObjectTag)); | 310 __ add(r2, r2, Operand(Code::kHeaderSize - kHeapObjectTag)); |
| 313 __ Jump(r2); | 311 __ Jump(r2); |
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| 600 __ sub(r3, r3, Operand(2), SetCC); | 598 __ sub(r3, r3, Operand(2), SetCC); |
| 601 __ b(ge, &loop); | 599 __ b(ge, &loop); |
| 602 | 600 |
| 603 // Call the function. | 601 // Call the function. |
| 604 // r0: number of arguments | 602 // r0: number of arguments |
| 605 // r1: constructor function | 603 // r1: constructor function |
| 606 if (is_api_function) { | 604 if (is_api_function) { |
| 607 __ ldr(cp, FieldMemOperand(r1, JSFunction::kContextOffset)); | 605 __ ldr(cp, FieldMemOperand(r1, JSFunction::kContextOffset)); |
| 608 Handle<Code> code = | 606 Handle<Code> code = |
| 609 masm->isolate()->builtins()->HandleApiCallConstruct(); | 607 masm->isolate()->builtins()->HandleApiCallConstruct(); |
| 610 ParameterCount expected(0); | 608 __ Call(code, RelocInfo::CODE_TARGET); |
| 611 __ InvokeCode(code, expected, expected, | |
| 612 RelocInfo::CODE_TARGET, CALL_FUNCTION, CALL_AS_METHOD); | |
| 613 } else { | 609 } else { |
| 614 ParameterCount actual(r0); | 610 ParameterCount actual(r0); |
| 615 __ InvokeFunction(r1, actual, CALL_FUNCTION, | 611 __ InvokeFunction(r1, actual, CALL_FUNCTION, NullCallWrapper()); |
| 616 NullCallWrapper(), CALL_AS_METHOD); | |
| 617 } | 612 } |
| 618 | 613 |
| 619 // Store offset of return address for deoptimizer. | 614 // Store offset of return address for deoptimizer. |
| 620 if (!is_api_function && !count_constructions) { | 615 if (!is_api_function && !count_constructions) { |
| 621 masm->isolate()->heap()->SetConstructStubDeoptPCOffset(masm->pc_offset()); | 616 masm->isolate()->heap()->SetConstructStubDeoptPCOffset(masm->pc_offset()); |
| 622 } | 617 } |
| 623 | 618 |
| 624 // Restore context from the frame. | 619 // Restore context from the frame. |
| 625 // r0: result | 620 // r0: result |
| 626 // sp[0]: receiver | 621 // sp[0]: receiver |
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| 743 __ mov(r0, Operand(r3)); | 738 __ mov(r0, Operand(r3)); |
| 744 if (is_construct) { | 739 if (is_construct) { |
| 745 // No type feedback cell is available | 740 // No type feedback cell is available |
| 746 Handle<Object> undefined_sentinel( | 741 Handle<Object> undefined_sentinel( |
| 747 masm->isolate()->heap()->undefined_value(), masm->isolate()); | 742 masm->isolate()->heap()->undefined_value(), masm->isolate()); |
| 748 __ mov(r2, Operand(undefined_sentinel)); | 743 __ mov(r2, Operand(undefined_sentinel)); |
| 749 CallConstructStub stub(NO_CALL_FUNCTION_FLAGS); | 744 CallConstructStub stub(NO_CALL_FUNCTION_FLAGS); |
| 750 __ CallStub(&stub); | 745 __ CallStub(&stub); |
| 751 } else { | 746 } else { |
| 752 ParameterCount actual(r0); | 747 ParameterCount actual(r0); |
| 753 __ InvokeFunction(r1, actual, CALL_FUNCTION, | 748 __ InvokeFunction(r1, actual, CALL_FUNCTION, NullCallWrapper()); |
| 754 NullCallWrapper(), CALL_AS_METHOD); | |
| 755 } | 749 } |
| 756 // Exit the JS frame and remove the parameters (except function), and | 750 // Exit the JS frame and remove the parameters (except function), and |
| 757 // return. | 751 // return. |
| 758 // Respect ABI stack constraint. | 752 // Respect ABI stack constraint. |
| 759 } | 753 } |
| 760 __ Jump(lr); | 754 __ Jump(lr); |
| 761 | 755 |
| 762 // r0: result | 756 // r0: result |
| 763 } | 757 } |
| 764 | 758 |
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| 776 void Builtins::Generate_CompileUnoptimized(MacroAssembler* masm) { | 770 void Builtins::Generate_CompileUnoptimized(MacroAssembler* masm) { |
| 777 CallRuntimePassFunction(masm, Runtime::kCompileUnoptimized); | 771 CallRuntimePassFunction(masm, Runtime::kCompileUnoptimized); |
| 778 GenerateTailCallToReturnedCode(masm); | 772 GenerateTailCallToReturnedCode(masm); |
| 779 } | 773 } |
| 780 | 774 |
| 781 | 775 |
| 782 static void CallCompileOptimized(MacroAssembler* masm, bool concurrent) { | 776 static void CallCompileOptimized(MacroAssembler* masm, bool concurrent) { |
| 783 FrameScope scope(masm, StackFrame::INTERNAL); | 777 FrameScope scope(masm, StackFrame::INTERNAL); |
| 784 // Push a copy of the function onto the stack. | 778 // Push a copy of the function onto the stack. |
| 785 __ push(r1); | 779 __ push(r1); |
| 786 // Push call kind information and function as parameter to the runtime call. | 780 // Push function as parameter to the runtime call. |
| 787 __ Push(r5, r1); | 781 __ Push(r1); |
| 788 // Whether to compile in a background thread. | 782 // Whether to compile in a background thread. |
| 789 __ Push(masm->isolate()->factory()->ToBoolean(concurrent)); | 783 __ Push(masm->isolate()->factory()->ToBoolean(concurrent)); |
| 790 | 784 |
| 791 __ CallRuntime(Runtime::kCompileOptimized, 2); | 785 __ CallRuntime(Runtime::kCompileOptimized, 2); |
| 792 // Restore call kind information. | |
| 793 __ pop(r5); | |
| 794 // Restore receiver. | 786 // Restore receiver. |
| 795 __ pop(r1); | 787 __ pop(r1); |
| 796 } | 788 } |
| 797 | 789 |
| 798 | 790 |
| 799 void Builtins::Generate_CompileOptimized(MacroAssembler* masm) { | 791 void Builtins::Generate_CompileOptimized(MacroAssembler* masm) { |
| 800 CallCompileOptimized(masm, false); | 792 CallCompileOptimized(masm, false); |
| 801 GenerateTailCallToReturnedCode(masm); | 793 GenerateTailCallToReturnedCode(masm); |
| 802 } | 794 } |
| 803 | 795 |
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| 1144 // 5a. Call non-function via tail call to CALL_NON_FUNCTION builtin, | 1136 // 5a. Call non-function via tail call to CALL_NON_FUNCTION builtin, |
| 1145 // or a function proxy via CALL_FUNCTION_PROXY. | 1137 // or a function proxy via CALL_FUNCTION_PROXY. |
| 1146 // r0: actual number of arguments | 1138 // r0: actual number of arguments |
| 1147 // r1: function | 1139 // r1: function |
| 1148 // r4: call type (0: JS function, 1: function proxy, 2: non-function) | 1140 // r4: call type (0: JS function, 1: function proxy, 2: non-function) |
| 1149 { Label function, non_proxy; | 1141 { Label function, non_proxy; |
| 1150 __ tst(r4, r4); | 1142 __ tst(r4, r4); |
| 1151 __ b(eq, &function); | 1143 __ b(eq, &function); |
| 1152 // Expected number of arguments is 0 for CALL_NON_FUNCTION. | 1144 // Expected number of arguments is 0 for CALL_NON_FUNCTION. |
| 1153 __ mov(r2, Operand::Zero()); | 1145 __ mov(r2, Operand::Zero()); |
| 1154 __ SetCallKind(r5, CALL_AS_METHOD); | |
| 1155 __ cmp(r4, Operand(1)); | 1146 __ cmp(r4, Operand(1)); |
| 1156 __ b(ne, &non_proxy); | 1147 __ b(ne, &non_proxy); |
| 1157 | 1148 |
| 1158 __ push(r1); // re-add proxy object as additional argument | 1149 __ push(r1); // re-add proxy object as additional argument |
| 1159 __ add(r0, r0, Operand(1)); | 1150 __ add(r0, r0, Operand(1)); |
| 1160 __ GetBuiltinEntry(r3, Builtins::CALL_FUNCTION_PROXY); | 1151 __ GetBuiltinFunction(r1, Builtins::CALL_FUNCTION_PROXY); |
| 1161 __ Jump(masm->isolate()->builtins()->ArgumentsAdaptorTrampoline(), | 1152 __ Jump(masm->isolate()->builtins()->ArgumentsAdaptorTrampoline(), |
| 1162 RelocInfo::CODE_TARGET); | 1153 RelocInfo::CODE_TARGET); |
| 1163 | 1154 |
| 1164 __ bind(&non_proxy); | 1155 __ bind(&non_proxy); |
| 1165 __ GetBuiltinEntry(r3, Builtins::CALL_NON_FUNCTION); | 1156 __ GetBuiltinFunction(r1, Builtins::CALL_NON_FUNCTION); |
| 1166 __ Jump(masm->isolate()->builtins()->ArgumentsAdaptorTrampoline(), | 1157 __ Jump(masm->isolate()->builtins()->ArgumentsAdaptorTrampoline(), |
| 1167 RelocInfo::CODE_TARGET); | 1158 RelocInfo::CODE_TARGET); |
| 1168 __ bind(&function); | 1159 __ bind(&function); |
| 1169 } | 1160 } |
| 1170 | 1161 |
| 1171 // 5b. Get the code to call from the function and check that the number of | 1162 // 5b. Get the code to call from the function and check that the number of |
| 1172 // expected arguments matches what we're providing. If so, jump | 1163 // expected arguments matches what we're providing. If so, jump |
| 1173 // (tail-call) to the code in register edx without checking arguments. | 1164 // (tail-call) to the code in register edx without checking arguments. |
| 1174 // r0: actual number of arguments | 1165 // r0: actual number of arguments |
| 1175 // r1: function | 1166 // r1: function |
| 1176 __ ldr(r3, FieldMemOperand(r1, JSFunction::kSharedFunctionInfoOffset)); | 1167 __ ldr(r3, FieldMemOperand(r1, JSFunction::kSharedFunctionInfoOffset)); |
| 1177 __ ldr(r2, | 1168 __ ldr(r2, |
| 1178 FieldMemOperand(r3, SharedFunctionInfo::kFormalParameterCountOffset)); | 1169 FieldMemOperand(r3, SharedFunctionInfo::kFormalParameterCountOffset)); |
| 1179 __ SmiUntag(r2); | 1170 __ SmiUntag(r2); |
| 1180 __ ldr(r3, FieldMemOperand(r1, JSFunction::kCodeEntryOffset)); | |
| 1181 __ SetCallKind(r5, CALL_AS_FUNCTION); | |
| 1182 __ cmp(r2, r0); // Check formal and actual parameter counts. | 1171 __ cmp(r2, r0); // Check formal and actual parameter counts. |
| 1183 __ Jump(masm->isolate()->builtins()->ArgumentsAdaptorTrampoline(), | 1172 __ Jump(masm->isolate()->builtins()->ArgumentsAdaptorTrampoline(), |
| 1184 RelocInfo::CODE_TARGET, | 1173 RelocInfo::CODE_TARGET, |
| 1185 ne); | 1174 ne); |
| 1186 | 1175 |
| 1176 __ ldr(r3, FieldMemOperand(r1, JSFunction::kCodeEntryOffset)); |
| 1187 ParameterCount expected(0); | 1177 ParameterCount expected(0); |
| 1188 __ InvokeCode(r3, expected, expected, JUMP_FUNCTION, | 1178 __ InvokeCode(r3, expected, expected, JUMP_FUNCTION, NullCallWrapper()); |
| 1189 NullCallWrapper(), CALL_AS_FUNCTION); | |
| 1190 } | 1179 } |
| 1191 | 1180 |
| 1192 | 1181 |
| 1193 void Builtins::Generate_FunctionApply(MacroAssembler* masm) { | 1182 void Builtins::Generate_FunctionApply(MacroAssembler* masm) { |
| 1194 const int kIndexOffset = | 1183 const int kIndexOffset = |
| 1195 StandardFrameConstants::kExpressionsOffset - (2 * kPointerSize); | 1184 StandardFrameConstants::kExpressionsOffset - (2 * kPointerSize); |
| 1196 const int kLimitOffset = | 1185 const int kLimitOffset = |
| 1197 StandardFrameConstants::kExpressionsOffset - (1 * kPointerSize); | 1186 StandardFrameConstants::kExpressionsOffset - (1 * kPointerSize); |
| 1198 const int kArgsOffset = 2 * kPointerSize; | 1187 const int kArgsOffset = 2 * kPointerSize; |
| 1199 const int kRecvOffset = 3 * kPointerSize; | 1188 const int kRecvOffset = 3 * kPointerSize; |
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| 1317 __ cmp(r0, r1); | 1306 __ cmp(r0, r1); |
| 1318 __ b(ne, &loop); | 1307 __ b(ne, &loop); |
| 1319 | 1308 |
| 1320 // Call the function. | 1309 // Call the function. |
| 1321 Label call_proxy; | 1310 Label call_proxy; |
| 1322 ParameterCount actual(r0); | 1311 ParameterCount actual(r0); |
| 1323 __ SmiUntag(r0); | 1312 __ SmiUntag(r0); |
| 1324 __ ldr(r1, MemOperand(fp, kFunctionOffset)); | 1313 __ ldr(r1, MemOperand(fp, kFunctionOffset)); |
| 1325 __ CompareObjectType(r1, r2, r2, JS_FUNCTION_TYPE); | 1314 __ CompareObjectType(r1, r2, r2, JS_FUNCTION_TYPE); |
| 1326 __ b(ne, &call_proxy); | 1315 __ b(ne, &call_proxy); |
| 1327 __ InvokeFunction(r1, actual, CALL_FUNCTION, | 1316 __ InvokeFunction(r1, actual, CALL_FUNCTION, NullCallWrapper()); |
| 1328 NullCallWrapper(), CALL_AS_FUNCTION); | |
| 1329 | 1317 |
| 1330 frame_scope.GenerateLeaveFrame(); | 1318 frame_scope.GenerateLeaveFrame(); |
| 1331 __ add(sp, sp, Operand(3 * kPointerSize)); | 1319 __ add(sp, sp, Operand(3 * kPointerSize)); |
| 1332 __ Jump(lr); | 1320 __ Jump(lr); |
| 1333 | 1321 |
| 1334 // Call the function proxy. | 1322 // Call the function proxy. |
| 1335 __ bind(&call_proxy); | 1323 __ bind(&call_proxy); |
| 1336 __ push(r1); // add function proxy as last argument | 1324 __ push(r1); // add function proxy as last argument |
| 1337 __ add(r0, r0, Operand(1)); | 1325 __ add(r0, r0, Operand(1)); |
| 1338 __ mov(r2, Operand::Zero()); | 1326 __ mov(r2, Operand::Zero()); |
| 1339 __ SetCallKind(r5, CALL_AS_FUNCTION); | 1327 __ GetBuiltinFunction(r1, Builtins::CALL_FUNCTION_PROXY); |
| 1340 __ GetBuiltinEntry(r3, Builtins::CALL_FUNCTION_PROXY); | |
| 1341 __ Call(masm->isolate()->builtins()->ArgumentsAdaptorTrampoline(), | 1328 __ Call(masm->isolate()->builtins()->ArgumentsAdaptorTrampoline(), |
| 1342 RelocInfo::CODE_TARGET); | 1329 RelocInfo::CODE_TARGET); |
| 1343 | 1330 |
| 1344 // Tear down the internal frame and remove function, receiver and args. | 1331 // Tear down the internal frame and remove function, receiver and args. |
| 1345 } | 1332 } |
| 1346 __ add(sp, sp, Operand(3 * kPointerSize)); | 1333 __ add(sp, sp, Operand(3 * kPointerSize)); |
| 1347 __ Jump(lr); | 1334 __ Jump(lr); |
| 1348 } | 1335 } |
| 1349 | 1336 |
| 1350 | 1337 |
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| 1372 __ add(sp, sp, Operand::PointerOffsetFromSmiKey(r1)); | 1359 __ add(sp, sp, Operand::PointerOffsetFromSmiKey(r1)); |
| 1373 __ add(sp, sp, Operand(kPointerSize)); // adjust for receiver | 1360 __ add(sp, sp, Operand(kPointerSize)); // adjust for receiver |
| 1374 } | 1361 } |
| 1375 | 1362 |
| 1376 | 1363 |
| 1377 void Builtins::Generate_ArgumentsAdaptorTrampoline(MacroAssembler* masm) { | 1364 void Builtins::Generate_ArgumentsAdaptorTrampoline(MacroAssembler* masm) { |
| 1378 // ----------- S t a t e ------------- | 1365 // ----------- S t a t e ------------- |
| 1379 // -- r0 : actual number of arguments | 1366 // -- r0 : actual number of arguments |
| 1380 // -- r1 : function (passed through to callee) | 1367 // -- r1 : function (passed through to callee) |
| 1381 // -- r2 : expected number of arguments | 1368 // -- r2 : expected number of arguments |
| 1382 // -- r3 : code entry to call | |
| 1383 // -- r5 : call kind information | |
| 1384 // ----------------------------------- | 1369 // ----------------------------------- |
| 1385 | 1370 |
| 1386 Label invoke, dont_adapt_arguments; | 1371 Label invoke, dont_adapt_arguments; |
| 1387 | 1372 |
| 1388 Label enough, too_few; | 1373 Label enough, too_few; |
| 1374 __ ldr(r3, FieldMemOperand(r1, JSFunction::kCodeEntryOffset)); |
| 1389 __ cmp(r0, r2); | 1375 __ cmp(r0, r2); |
| 1390 __ b(lt, &too_few); | 1376 __ b(lt, &too_few); |
| 1391 __ cmp(r2, Operand(SharedFunctionInfo::kDontAdaptArgumentsSentinel)); | 1377 __ cmp(r2, Operand(SharedFunctionInfo::kDontAdaptArgumentsSentinel)); |
| 1392 __ b(eq, &dont_adapt_arguments); | 1378 __ b(eq, &dont_adapt_arguments); |
| 1393 | 1379 |
| 1394 { // Enough parameters: actual >= expected | 1380 { // Enough parameters: actual >= expected |
| 1395 __ bind(&enough); | 1381 __ bind(&enough); |
| 1396 EnterArgumentsAdaptorFrame(masm); | 1382 EnterArgumentsAdaptorFrame(masm); |
| 1397 | 1383 |
| 1398 // Calculate copy start address into r0 and copy end address into r2. | 1384 // Calculate copy start address into r0 and copy end address into r2. |
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| 1482 __ bind(&dont_adapt_arguments); | 1468 __ bind(&dont_adapt_arguments); |
| 1483 __ Jump(r3); | 1469 __ Jump(r3); |
| 1484 } | 1470 } |
| 1485 | 1471 |
| 1486 | 1472 |
| 1487 #undef __ | 1473 #undef __ |
| 1488 | 1474 |
| 1489 } } // namespace v8::internal | 1475 } } // namespace v8::internal |
| 1490 | 1476 |
| 1491 #endif // V8_TARGET_ARCH_ARM | 1477 #endif // V8_TARGET_ARCH_ARM |
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