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Issue 22854011: Store doubles before calling into the elements transition stub on ARM (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Add test Created 7 years, 4 months ago
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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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4455 __ b(ne, &not_applicable); 4455 __ b(ne, &not_applicable);
4456 4456
4457 if (IsSimpleMapChangeTransition(from_kind, to_kind)) { 4457 if (IsSimpleMapChangeTransition(from_kind, to_kind)) {
4458 Register new_map_reg = ToRegister(instr->new_map_temp()); 4458 Register new_map_reg = ToRegister(instr->new_map_temp());
4459 __ mov(new_map_reg, Operand(to_map)); 4459 __ mov(new_map_reg, Operand(to_map));
4460 __ str(new_map_reg, FieldMemOperand(object_reg, HeapObject::kMapOffset)); 4460 __ str(new_map_reg, FieldMemOperand(object_reg, HeapObject::kMapOffset));
4461 // Write barrier. 4461 // Write barrier.
4462 __ RecordWriteField(object_reg, HeapObject::kMapOffset, new_map_reg, 4462 __ RecordWriteField(object_reg, HeapObject::kMapOffset, new_map_reg,
4463 scratch, GetLinkRegisterState(), kDontSaveFPRegs); 4463 scratch, GetLinkRegisterState(), kDontSaveFPRegs);
4464 } else { 4464 } else {
4465 PushSafepointRegistersScope scope(this, Safepoint::kWithRegisters); 4465 PushSafepointRegistersScope scope(
4466 this, Safepoint::kWithRegistersAndDoubles);
4466 __ Move(r0, object_reg); 4467 __ Move(r0, object_reg);
4467 __ Move(r1, to_map); 4468 __ Move(r1, to_map);
4468 TransitionElementsKindStub stub(from_kind, to_kind); 4469 TransitionElementsKindStub stub(from_kind, to_kind);
4469 __ CallStub(&stub); 4470 __ CallStub(&stub);
4470 RecordSafepointWithRegisters( 4471 RecordSafepointWithRegistersAndDoubles(
4471 instr->pointer_map(), 0, Safepoint::kNoLazyDeopt); 4472 instr->pointer_map(), 0, Safepoint::kNoLazyDeopt);
4472 } 4473 }
4473 __ bind(&not_applicable); 4474 __ bind(&not_applicable);
4474 } 4475 }
4475 4476
4476 4477
4477 void LCodeGen::DoTrapAllocationMemento(LTrapAllocationMemento* instr) { 4478 void LCodeGen::DoTrapAllocationMemento(LTrapAllocationMemento* instr) {
4478 Register object = ToRegister(instr->object()); 4479 Register object = ToRegister(instr->object());
4479 Register temp = ToRegister(instr->temp()); 4480 Register temp = ToRegister(instr->temp());
4480 __ TestJSArrayForAllocationMemento(object, temp); 4481 __ TestJSArrayForAllocationMemento(object, temp);
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5787 __ sub(scratch, result, Operand::PointerOffsetFromSmiKey(index)); 5788 __ sub(scratch, result, Operand::PointerOffsetFromSmiKey(index));
5788 __ ldr(result, FieldMemOperand(scratch, 5789 __ ldr(result, FieldMemOperand(scratch,
5789 FixedArray::kHeaderSize - kPointerSize)); 5790 FixedArray::kHeaderSize - kPointerSize));
5790 __ bind(&done); 5791 __ bind(&done);
5791 } 5792 }
5792 5793
5793 5794
5794 #undef __ 5795 #undef __
5795 5796
5796 } } // namespace v8::internal 5797 } } // namespace v8::internal
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