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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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1027 | 1027 |
1028 // Check whether we should continue to use the interpreter. | 1028 // Check whether we should continue to use the interpreter. |
1029 Label switch_to_different_code_kind; | 1029 Label switch_to_different_code_kind; |
1030 __ LoadP(r3, FieldMemOperand(r3, SharedFunctionInfo::kCodeOffset)); | 1030 __ LoadP(r3, FieldMemOperand(r3, SharedFunctionInfo::kCodeOffset)); |
1031 __ mov(ip, Operand(masm->CodeObject())); // Self-reference to this code. | 1031 __ mov(ip, Operand(masm->CodeObject())); // Self-reference to this code. |
1032 __ cmp(r3, ip); | 1032 __ cmp(r3, ip); |
1033 __ bne(&switch_to_different_code_kind); | 1033 __ bne(&switch_to_different_code_kind); |
1034 | 1034 |
1035 // Increment invocation count for the function. | 1035 // Increment invocation count for the function. |
1036 __ LoadP(r7, FieldMemOperand(r4, JSFunction::kFeedbackVectorOffset)); | 1036 __ LoadP(r7, FieldMemOperand(r4, JSFunction::kFeedbackVectorOffset)); |
| 1037 __ LoadP(r7, FieldMemOperand(r7, Cell::kValueOffset)); |
1037 __ LoadP(r8, FieldMemOperand(r7, TypeFeedbackVector::kInvocationCountIndex * | 1038 __ LoadP(r8, FieldMemOperand(r7, TypeFeedbackVector::kInvocationCountIndex * |
1038 kPointerSize + | 1039 kPointerSize + |
1039 TypeFeedbackVector::kHeaderSize)); | 1040 TypeFeedbackVector::kHeaderSize)); |
1040 __ AddSmiLiteral(r8, r8, Smi::FromInt(1), r0); | 1041 __ AddSmiLiteral(r8, r8, Smi::FromInt(1), r0); |
1041 __ StoreP(r8, FieldMemOperand(r7, TypeFeedbackVector::kInvocationCountIndex * | 1042 __ StoreP(r8, FieldMemOperand(r7, TypeFeedbackVector::kInvocationCountIndex * |
1042 kPointerSize + | 1043 kPointerSize + |
1043 TypeFeedbackVector::kHeaderSize), | 1044 TypeFeedbackVector::kHeaderSize), |
1044 r0); | 1045 r0); |
1045 | 1046 |
1046 // Check function data field is actually a BytecodeArray object. | 1047 // Check function data field is actually a BytecodeArray object. |
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1357 // -- r4 : target function (preserved for callee) | 1358 // -- r4 : target function (preserved for callee) |
1358 // ----------------------------------- | 1359 // ----------------------------------- |
1359 // First lookup code, maybe we don't need to compile! | 1360 // First lookup code, maybe we don't need to compile! |
1360 Label gotta_call_runtime; | 1361 Label gotta_call_runtime; |
1361 Label try_shared; | 1362 Label try_shared; |
1362 Label loop_top, loop_bottom; | 1363 Label loop_top, loop_bottom; |
1363 | 1364 |
1364 Register closure = r4; | 1365 Register closure = r4; |
1365 Register map = r9; | 1366 Register map = r9; |
1366 Register index = r5; | 1367 Register index = r5; |
| 1368 |
| 1369 // Do we have a valid feedback vector? |
| 1370 __ LoadP(index, FieldMemOperand(closure, JSFunction::kFeedbackVectorOffset)); |
| 1371 __ LoadP(index, FieldMemOperand(index, Cell::kValueOffset)); |
| 1372 __ JumpIfRoot(index, Heap::kUndefinedValueRootIndex, &gotta_call_runtime); |
| 1373 |
1367 __ LoadP(map, | 1374 __ LoadP(map, |
1368 FieldMemOperand(closure, JSFunction::kSharedFunctionInfoOffset)); | 1375 FieldMemOperand(closure, JSFunction::kSharedFunctionInfoOffset)); |
1369 __ LoadP(map, | 1376 __ LoadP(map, |
1370 FieldMemOperand(map, SharedFunctionInfo::kOptimizedCodeMapOffset)); | 1377 FieldMemOperand(map, SharedFunctionInfo::kOptimizedCodeMapOffset)); |
1371 __ LoadP(index, FieldMemOperand(map, FixedArray::kLengthOffset)); | 1378 __ LoadP(index, FieldMemOperand(map, FixedArray::kLengthOffset)); |
1372 __ CmpSmiLiteral(index, Smi::FromInt(2), r0); | 1379 __ CmpSmiLiteral(index, Smi::FromInt(2), r0); |
1373 __ blt(&gotta_call_runtime); | 1380 __ blt(&try_shared); |
1374 | 1381 |
1375 // Find literals. | |
1376 // r10 : native context | 1382 // r10 : native context |
1377 // r5 : length / index | 1383 // r5 : length / index |
1378 // r9 : optimized code map | 1384 // r9 : optimized code map |
1379 // r6 : new target | 1385 // r6 : new target |
1380 // r4 : closure | 1386 // r4 : closure |
1381 Register native_context = r10; | 1387 Register native_context = r10; |
1382 __ LoadP(native_context, NativeContextMemOperand()); | 1388 __ LoadP(native_context, NativeContextMemOperand()); |
1383 | 1389 |
1384 __ bind(&loop_top); | 1390 __ bind(&loop_top); |
1385 Register temp = r11; | 1391 Register temp = r11; |
1386 Register array_pointer = r8; | 1392 Register array_pointer = r8; |
1387 | 1393 |
1388 // Does the native context match? | 1394 // Does the native context match? |
1389 __ SmiToPtrArrayOffset(array_pointer, index); | 1395 __ SmiToPtrArrayOffset(array_pointer, index); |
1390 __ add(array_pointer, map, array_pointer); | 1396 __ add(array_pointer, map, array_pointer); |
1391 __ LoadP(temp, FieldMemOperand(array_pointer, | 1397 __ LoadP(temp, FieldMemOperand(array_pointer, |
1392 SharedFunctionInfo::kOffsetToPreviousContext)); | 1398 SharedFunctionInfo::kOffsetToPreviousContext)); |
1393 __ LoadP(temp, FieldMemOperand(temp, WeakCell::kValueOffset)); | 1399 __ LoadP(temp, FieldMemOperand(temp, WeakCell::kValueOffset)); |
1394 __ cmp(temp, native_context); | 1400 __ cmp(temp, native_context); |
1395 __ bne(&loop_bottom); | 1401 __ bne(&loop_bottom); |
1396 // Feedback vector available? | |
1397 __ LoadP(temp, | |
1398 FieldMemOperand(array_pointer, | |
1399 SharedFunctionInfo::kOffsetToPreviousLiterals)); | |
1400 __ LoadP(temp, FieldMemOperand(temp, WeakCell::kValueOffset)); | |
1401 __ JumpIfSmi(temp, &gotta_call_runtime); | |
1402 | |
1403 // Save the feedback vector in the closure. | |
1404 __ StoreP(temp, FieldMemOperand(closure, JSFunction::kFeedbackVectorOffset), | |
1405 r0); | |
1406 __ RecordWriteField(closure, JSFunction::kFeedbackVectorOffset, temp, r7, | |
1407 kLRHasNotBeenSaved, kDontSaveFPRegs, EMIT_REMEMBERED_SET, | |
1408 OMIT_SMI_CHECK); | |
1409 | 1402 |
1410 // Code available? | 1403 // Code available? |
1411 Register entry = r7; | 1404 Register entry = r7; |
1412 __ LoadP(entry, | 1405 __ LoadP(entry, |
1413 FieldMemOperand(array_pointer, | 1406 FieldMemOperand(array_pointer, |
1414 SharedFunctionInfo::kOffsetToPreviousCachedCode)); | 1407 SharedFunctionInfo::kOffsetToPreviousCachedCode)); |
1415 __ LoadP(entry, FieldMemOperand(entry, WeakCell::kValueOffset)); | 1408 __ LoadP(entry, FieldMemOperand(entry, WeakCell::kValueOffset)); |
1416 __ JumpIfSmi(entry, &try_shared); | 1409 __ JumpIfSmi(entry, &try_shared); |
1417 | 1410 |
1418 // Found literals and code. Get them into the closure and return. | 1411 // Found code. Get it into the closure and return. |
1419 // Store code entry in the closure. | 1412 // Store code entry in the closure. |
1420 __ addi(entry, entry, Operand(Code::kHeaderSize - kHeapObjectTag)); | 1413 __ addi(entry, entry, Operand(Code::kHeaderSize - kHeapObjectTag)); |
1421 __ StoreP(entry, FieldMemOperand(closure, JSFunction::kCodeEntryOffset), r0); | 1414 __ StoreP(entry, FieldMemOperand(closure, JSFunction::kCodeEntryOffset), r0); |
1422 __ RecordWriteCodeEntryField(closure, entry, r8); | 1415 __ RecordWriteCodeEntryField(closure, entry, r8); |
1423 | 1416 |
1424 // Link the closure into the optimized function list. | 1417 // Link the closure into the optimized function list. |
1425 // r7 : code entry | 1418 // r7 : code entry |
1426 // r10: native context | 1419 // r10: native context |
1427 // r4 : closure | 1420 // r4 : closure |
1428 __ LoadP( | 1421 __ LoadP( |
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1442 __ RecordWriteContextSlot(native_context, function_list_offset, r8, temp, | 1435 __ RecordWriteContextSlot(native_context, function_list_offset, r8, temp, |
1443 kLRHasNotBeenSaved, kDontSaveFPRegs); | 1436 kLRHasNotBeenSaved, kDontSaveFPRegs); |
1444 __ JumpToJSEntry(entry); | 1437 __ JumpToJSEntry(entry); |
1445 | 1438 |
1446 __ bind(&loop_bottom); | 1439 __ bind(&loop_bottom); |
1447 __ SubSmiLiteral(index, index, Smi::FromInt(SharedFunctionInfo::kEntryLength), | 1440 __ SubSmiLiteral(index, index, Smi::FromInt(SharedFunctionInfo::kEntryLength), |
1448 r0); | 1441 r0); |
1449 __ CmpSmiLiteral(index, Smi::FromInt(1), r0); | 1442 __ CmpSmiLiteral(index, Smi::FromInt(1), r0); |
1450 __ bgt(&loop_top); | 1443 __ bgt(&loop_top); |
1451 | 1444 |
1452 // We found neither literals nor code. | 1445 // We found no code. |
1453 __ b(&gotta_call_runtime); | 1446 __ b(&gotta_call_runtime); |
1454 | 1447 |
1455 __ bind(&try_shared); | 1448 __ bind(&try_shared); |
1456 __ LoadP(entry, | 1449 __ LoadP(entry, |
1457 FieldMemOperand(closure, JSFunction::kSharedFunctionInfoOffset)); | 1450 FieldMemOperand(closure, JSFunction::kSharedFunctionInfoOffset)); |
1458 // Is the shared function marked for tier up? | 1451 // Is the shared function marked for tier up? |
1459 __ lbz(r8, FieldMemOperand(entry, | 1452 __ lbz(r8, FieldMemOperand(entry, |
1460 SharedFunctionInfo::kMarkedForTierUpByteOffset)); | 1453 SharedFunctionInfo::kMarkedForTierUpByteOffset)); |
1461 __ TestBit(r8, SharedFunctionInfo::kMarkedForTierUpBitWithinByte, r0); | 1454 __ TestBit(r8, SharedFunctionInfo::kMarkedForTierUpBitWithinByte, r0); |
1462 __ bne(&gotta_call_runtime, cr0); | 1455 __ bne(&gotta_call_runtime, cr0); |
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3205 __ CallRuntime(Runtime::kThrowStackOverflow); | 3198 __ CallRuntime(Runtime::kThrowStackOverflow); |
3206 __ bkpt(0); | 3199 __ bkpt(0); |
3207 } | 3200 } |
3208 } | 3201 } |
3209 | 3202 |
3210 #undef __ | 3203 #undef __ |
3211 } // namespace internal | 3204 } // namespace internal |
3212 } // namespace v8 | 3205 } // namespace v8 |
3213 | 3206 |
3214 #endif // V8_TARGET_ARCH_PPC | 3207 #endif // V8_TARGET_ARCH_PPC |
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