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1 // Copyright 2014 the V8 project authors. All rights reserved. | 1 // Copyright 2014 the V8 project authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #if V8_TARGET_ARCH_PPC | 5 #if V8_TARGET_ARCH_PPC |
6 | 6 |
7 #include "src/codegen.h" | 7 #include "src/codegen.h" |
8 #include "src/debug/debug.h" | 8 #include "src/debug/debug.h" |
9 #include "src/deoptimizer.h" | 9 #include "src/deoptimizer.h" |
10 #include "src/full-codegen/full-codegen.h" | 10 #include "src/full-codegen/full-codegen.h" |
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1391 } | 1391 } |
1392 | 1392 |
1393 void Builtins::Generate_CompileLazy(MacroAssembler* masm) { | 1393 void Builtins::Generate_CompileLazy(MacroAssembler* masm) { |
1394 // ----------- S t a t e ------------- | 1394 // ----------- S t a t e ------------- |
1395 // -- r3 : argument count (preserved for callee) | 1395 // -- r3 : argument count (preserved for callee) |
1396 // -- r6 : new target (preserved for callee) | 1396 // -- r6 : new target (preserved for callee) |
1397 // -- r4 : target function (preserved for callee) | 1397 // -- r4 : target function (preserved for callee) |
1398 // ----------------------------------- | 1398 // ----------------------------------- |
1399 // First lookup code, maybe we don't need to compile! | 1399 // First lookup code, maybe we don't need to compile! |
1400 Label gotta_call_runtime; | 1400 Label gotta_call_runtime; |
1401 Label maybe_call_runtime; | |
1402 Label try_shared; | 1401 Label try_shared; |
1403 Label loop_top, loop_bottom; | 1402 Label loop_top, loop_bottom; |
1404 | 1403 |
1405 Register closure = r4; | 1404 Register closure = r4; |
1406 Register map = r9; | 1405 Register map = r9; |
1407 Register index = r5; | 1406 Register index = r5; |
1408 __ LoadP(map, | 1407 __ LoadP(map, |
1409 FieldMemOperand(closure, JSFunction::kSharedFunctionInfoOffset)); | 1408 FieldMemOperand(closure, JSFunction::kSharedFunctionInfoOffset)); |
1410 __ LoadP(map, | 1409 __ LoadP(map, |
1411 FieldMemOperand(map, SharedFunctionInfo::kOptimizedCodeMapOffset)); | 1410 FieldMemOperand(map, SharedFunctionInfo::kOptimizedCodeMapOffset)); |
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1453 __ RecordWriteField(closure, JSFunction::kLiteralsOffset, temp, r7, | 1452 __ RecordWriteField(closure, JSFunction::kLiteralsOffset, temp, r7, |
1454 kLRHasNotBeenSaved, kDontSaveFPRegs, EMIT_REMEMBERED_SET, | 1453 kLRHasNotBeenSaved, kDontSaveFPRegs, EMIT_REMEMBERED_SET, |
1455 OMIT_SMI_CHECK); | 1454 OMIT_SMI_CHECK); |
1456 | 1455 |
1457 // Code available? | 1456 // Code available? |
1458 Register entry = r7; | 1457 Register entry = r7; |
1459 __ LoadP(entry, | 1458 __ LoadP(entry, |
1460 FieldMemOperand(array_pointer, | 1459 FieldMemOperand(array_pointer, |
1461 SharedFunctionInfo::kOffsetToPreviousCachedCode)); | 1460 SharedFunctionInfo::kOffsetToPreviousCachedCode)); |
1462 __ LoadP(entry, FieldMemOperand(entry, WeakCell::kValueOffset)); | 1461 __ LoadP(entry, FieldMemOperand(entry, WeakCell::kValueOffset)); |
1463 __ JumpIfSmi(entry, &maybe_call_runtime); | 1462 __ JumpIfSmi(entry, &try_shared); |
1464 | 1463 |
1465 // Found literals and code. Get them into the closure and return. | 1464 // Found literals and code. Get them into the closure and return. |
1466 // Store code entry in the closure. | 1465 // Store code entry in the closure. |
1467 __ addi(entry, entry, Operand(Code::kHeaderSize - kHeapObjectTag)); | 1466 __ addi(entry, entry, Operand(Code::kHeaderSize - kHeapObjectTag)); |
1468 | |
1469 Label install_optimized_code_and_tailcall; | |
1470 __ bind(&install_optimized_code_and_tailcall); | |
1471 __ StoreP(entry, FieldMemOperand(closure, JSFunction::kCodeEntryOffset), r0); | 1467 __ StoreP(entry, FieldMemOperand(closure, JSFunction::kCodeEntryOffset), r0); |
1472 __ RecordWriteCodeEntryField(closure, entry, r8); | 1468 __ RecordWriteCodeEntryField(closure, entry, r8); |
1473 | 1469 |
1474 // Link the closure into the optimized function list. | 1470 // Link the closure into the optimized function list. |
1475 // r7 : code entry | 1471 // r7 : code entry |
1476 // r10: native context | 1472 // r10: native context |
1477 // r4 : closure | 1473 // r4 : closure |
1478 __ LoadP( | 1474 __ LoadP( |
1479 r8, ContextMemOperand(native_context, Context::OPTIMIZED_FUNCTIONS_LIST)); | 1475 r8, ContextMemOperand(native_context, Context::OPTIMIZED_FUNCTIONS_LIST)); |
1480 __ StoreP(r8, FieldMemOperand(closure, JSFunction::kNextFunctionLinkOffset), | 1476 __ StoreP(r8, FieldMemOperand(closure, JSFunction::kNextFunctionLinkOffset), |
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1495 | 1491 |
1496 __ bind(&loop_bottom); | 1492 __ bind(&loop_bottom); |
1497 __ SubSmiLiteral(index, index, Smi::FromInt(SharedFunctionInfo::kEntryLength), | 1493 __ SubSmiLiteral(index, index, Smi::FromInt(SharedFunctionInfo::kEntryLength), |
1498 r0); | 1494 r0); |
1499 __ CmpSmiLiteral(index, Smi::FromInt(1), r0); | 1495 __ CmpSmiLiteral(index, Smi::FromInt(1), r0); |
1500 __ bgt(&loop_top); | 1496 __ bgt(&loop_top); |
1501 | 1497 |
1502 // We found neither literals nor code. | 1498 // We found neither literals nor code. |
1503 __ b(&gotta_call_runtime); | 1499 __ b(&gotta_call_runtime); |
1504 | 1500 |
1505 __ bind(&maybe_call_runtime); | |
1506 | |
1507 // Last possibility. Check the context free optimized code map entry. | |
1508 __ LoadP(entry, | |
1509 FieldMemOperand(map, FixedArray::kHeaderSize + | |
1510 SharedFunctionInfo::kSharedCodeIndex)); | |
1511 __ LoadP(entry, FieldMemOperand(entry, WeakCell::kValueOffset)); | |
1512 __ JumpIfSmi(entry, &try_shared); | |
1513 | |
1514 // Store code entry in the closure. | |
1515 __ addi(entry, entry, Operand(Code::kHeaderSize - kHeapObjectTag)); | |
1516 __ b(&install_optimized_code_and_tailcall); | |
1517 | |
1518 __ bind(&try_shared); | 1501 __ bind(&try_shared); |
1519 // Is the full code valid? | 1502 // Is the full code valid? |
1520 __ LoadP(entry, | 1503 __ LoadP(entry, |
1521 FieldMemOperand(closure, JSFunction::kSharedFunctionInfoOffset)); | 1504 FieldMemOperand(closure, JSFunction::kSharedFunctionInfoOffset)); |
1522 __ LoadP(entry, FieldMemOperand(entry, SharedFunctionInfo::kCodeOffset)); | 1505 __ LoadP(entry, FieldMemOperand(entry, SharedFunctionInfo::kCodeOffset)); |
1523 __ lwz(r8, FieldMemOperand(entry, Code::kFlagsOffset)); | 1506 __ lwz(r8, FieldMemOperand(entry, Code::kFlagsOffset)); |
1524 __ DecodeField<Code::KindField>(r8); | 1507 __ DecodeField<Code::KindField>(r8); |
1525 __ cmpi(r8, Operand(Code::BUILTIN)); | 1508 __ cmpi(r8, Operand(Code::BUILTIN)); |
1526 __ beq(&gotta_call_runtime); | 1509 __ beq(&gotta_call_runtime); |
1527 // Yes, install the full code. | 1510 // Yes, install the full code. |
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3012 __ CallRuntime(Runtime::kThrowStackOverflow); | 2995 __ CallRuntime(Runtime::kThrowStackOverflow); |
3013 __ bkpt(0); | 2996 __ bkpt(0); |
3014 } | 2997 } |
3015 } | 2998 } |
3016 | 2999 |
3017 #undef __ | 3000 #undef __ |
3018 } // namespace internal | 3001 } // namespace internal |
3019 } // namespace v8 | 3002 } // namespace v8 |
3020 | 3003 |
3021 #endif // V8_TARGET_ARCH_PPC | 3004 #endif // V8_TARGET_ARCH_PPC |
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