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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_S390 | 5 #if V8_TARGET_ARCH_S390 |
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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1367 Register map = r8; | 1367 Register map = r8; |
1368 Register index = r4; | 1368 Register index = r4; |
1369 __ LoadP(map, | 1369 __ LoadP(map, |
1370 FieldMemOperand(closure, JSFunction::kSharedFunctionInfoOffset)); | 1370 FieldMemOperand(closure, JSFunction::kSharedFunctionInfoOffset)); |
1371 __ LoadP(map, | 1371 __ LoadP(map, |
1372 FieldMemOperand(map, SharedFunctionInfo::kOptimizedCodeMapOffset)); | 1372 FieldMemOperand(map, SharedFunctionInfo::kOptimizedCodeMapOffset)); |
1373 __ LoadP(index, FieldMemOperand(map, FixedArray::kLengthOffset)); | 1373 __ LoadP(index, FieldMemOperand(map, FixedArray::kLengthOffset)); |
1374 __ CmpSmiLiteral(index, Smi::FromInt(2), r0); | 1374 __ CmpSmiLiteral(index, Smi::FromInt(2), r0); |
1375 __ blt(&gotta_call_runtime); | 1375 __ blt(&gotta_call_runtime); |
1376 | 1376 |
| 1377 // Find literals. |
1377 // r9 : native context | 1378 // r9 : native context |
1378 // r4 : length / index | 1379 // r4 : length / index |
1379 // r8 : optimized code map | 1380 // r8 : optimized code map |
1380 // r5 : new target | 1381 // r5 : new target |
1381 // r3 : closure | 1382 // r3 : closure |
1382 Register native_context = r9; | 1383 Register native_context = r9; |
1383 __ LoadP(native_context, NativeContextMemOperand()); | 1384 __ LoadP(native_context, NativeContextMemOperand()); |
1384 | 1385 |
1385 __ bind(&loop_top); | 1386 __ bind(&loop_top); |
1386 Register temp = r1; | 1387 Register temp = r1; |
1387 Register array_pointer = r7; | 1388 Register array_pointer = r7; |
1388 | 1389 |
1389 // Does the native context match? | 1390 // Does the native context match? |
1390 __ SmiToPtrArrayOffset(array_pointer, index); | 1391 __ SmiToPtrArrayOffset(array_pointer, index); |
1391 __ AddP(array_pointer, map, array_pointer); | 1392 __ AddP(array_pointer, map, array_pointer); |
1392 __ LoadP(temp, FieldMemOperand(array_pointer, | 1393 __ LoadP(temp, FieldMemOperand(array_pointer, |
1393 SharedFunctionInfo::kOffsetToPreviousContext)); | 1394 SharedFunctionInfo::kOffsetToPreviousContext)); |
1394 __ LoadP(temp, FieldMemOperand(temp, WeakCell::kValueOffset)); | 1395 __ LoadP(temp, FieldMemOperand(temp, WeakCell::kValueOffset)); |
1395 __ CmpP(temp, native_context); | 1396 __ CmpP(temp, native_context); |
1396 __ bne(&loop_bottom, Label::kNear); | 1397 __ bne(&loop_bottom, Label::kNear); |
| 1398 // Literals available? |
| 1399 __ LoadP(temp, |
| 1400 FieldMemOperand(array_pointer, |
| 1401 SharedFunctionInfo::kOffsetToPreviousLiterals)); |
| 1402 __ LoadP(temp, FieldMemOperand(temp, WeakCell::kValueOffset)); |
| 1403 __ JumpIfSmi(temp, &gotta_call_runtime); |
| 1404 |
| 1405 // Save the literals in the closure. |
| 1406 __ StoreP(temp, FieldMemOperand(closure, JSFunction::kLiteralsOffset), r0); |
| 1407 __ RecordWriteField(closure, JSFunction::kLiteralsOffset, temp, r6, |
| 1408 kLRHasNotBeenSaved, kDontSaveFPRegs, EMIT_REMEMBERED_SET, |
| 1409 OMIT_SMI_CHECK); |
1397 | 1410 |
1398 // Code available? | 1411 // Code available? |
1399 Register entry = r6; | 1412 Register entry = r6; |
1400 __ LoadP(entry, | 1413 __ LoadP(entry, |
1401 FieldMemOperand(array_pointer, | 1414 FieldMemOperand(array_pointer, |
1402 SharedFunctionInfo::kOffsetToPreviousCachedCode)); | 1415 SharedFunctionInfo::kOffsetToPreviousCachedCode)); |
1403 __ LoadP(entry, FieldMemOperand(entry, WeakCell::kValueOffset)); | 1416 __ LoadP(entry, FieldMemOperand(entry, WeakCell::kValueOffset)); |
1404 __ JumpIfSmi(entry, &try_shared); | 1417 __ JumpIfSmi(entry, &try_shared); |
1405 | 1418 |
1406 // Found code. Get it into the closure and return. | 1419 // Found literals and code. Get them into the closure and return. |
1407 // Store code entry in the closure. | 1420 // Store code entry in the closure. |
1408 __ AddP(entry, entry, Operand(Code::kHeaderSize - kHeapObjectTag)); | 1421 __ AddP(entry, entry, Operand(Code::kHeaderSize - kHeapObjectTag)); |
1409 __ StoreP(entry, FieldMemOperand(closure, JSFunction::kCodeEntryOffset), r0); | 1422 __ StoreP(entry, FieldMemOperand(closure, JSFunction::kCodeEntryOffset), r0); |
1410 __ RecordWriteCodeEntryField(closure, entry, r7); | 1423 __ RecordWriteCodeEntryField(closure, entry, r7); |
1411 | 1424 |
1412 // Link the closure into the optimized function list. | 1425 // Link the closure into the optimized function list. |
1413 // r6 : code entry | 1426 // r6 : code entry |
1414 // r9: native context | 1427 // r9: native context |
1415 // r3 : closure | 1428 // r3 : closure |
1416 __ LoadP( | 1429 __ LoadP( |
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1430 __ RecordWriteContextSlot(native_context, function_list_offset, r7, temp, | 1443 __ RecordWriteContextSlot(native_context, function_list_offset, r7, temp, |
1431 kLRHasNotBeenSaved, kDontSaveFPRegs); | 1444 kLRHasNotBeenSaved, kDontSaveFPRegs); |
1432 __ JumpToJSEntry(entry); | 1445 __ JumpToJSEntry(entry); |
1433 | 1446 |
1434 __ bind(&loop_bottom); | 1447 __ bind(&loop_bottom); |
1435 __ SubSmiLiteral(index, index, Smi::FromInt(SharedFunctionInfo::kEntryLength), | 1448 __ SubSmiLiteral(index, index, Smi::FromInt(SharedFunctionInfo::kEntryLength), |
1436 r0); | 1449 r0); |
1437 __ CmpSmiLiteral(index, Smi::FromInt(1), r0); | 1450 __ CmpSmiLiteral(index, Smi::FromInt(1), r0); |
1438 __ bgt(&loop_top); | 1451 __ bgt(&loop_top); |
1439 | 1452 |
1440 // We found no code. | 1453 // We found neither literals nor code. |
1441 __ b(&gotta_call_runtime); | 1454 __ b(&gotta_call_runtime); |
1442 | 1455 |
1443 __ bind(&try_shared); | 1456 __ bind(&try_shared); |
1444 __ LoadP(entry, | 1457 __ LoadP(entry, |
1445 FieldMemOperand(closure, JSFunction::kSharedFunctionInfoOffset)); | 1458 FieldMemOperand(closure, JSFunction::kSharedFunctionInfoOffset)); |
1446 // Is the shared function marked for tier up? | 1459 // Is the shared function marked for tier up? |
1447 __ LoadlB(temp, FieldMemOperand( | 1460 __ LoadlB(temp, FieldMemOperand( |
1448 entry, SharedFunctionInfo::kMarkedForTierUpByteOffset)); | 1461 entry, SharedFunctionInfo::kMarkedForTierUpByteOffset)); |
1449 __ TestBit(temp, SharedFunctionInfo::kMarkedForTierUpBitWithinByte, r0); | 1462 __ TestBit(temp, SharedFunctionInfo::kMarkedForTierUpBitWithinByte, r0); |
1450 __ bne(&gotta_call_runtime); | 1463 __ bne(&gotta_call_runtime); |
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2971 __ bkpt(0); | 2984 __ bkpt(0); |
2972 } | 2985 } |
2973 } | 2986 } |
2974 | 2987 |
2975 #undef __ | 2988 #undef __ |
2976 | 2989 |
2977 } // namespace internal | 2990 } // namespace internal |
2978 } // namespace v8 | 2991 } // namespace v8 |
2979 | 2992 |
2980 #endif // V8_TARGET_ARCH_S390 | 2993 #endif // V8_TARGET_ARCH_S390 |
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