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1 // Copyright 2012 the V8 project authors. All rights reserved.7 | 1 // Copyright 2012 the V8 project authors. All rights reserved.7 |
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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5364 __ mov(result, zero_reg); | 5364 __ mov(result, zero_reg); |
5365 | 5365 |
5366 PushSafepointRegistersScope scope(this, Safepoint::kWithRegisters); | 5366 PushSafepointRegistersScope scope(this, Safepoint::kWithRegisters); |
5367 if (instr->size()->IsRegister()) { | 5367 if (instr->size()->IsRegister()) { |
5368 Register size = ToRegister(instr->size()); | 5368 Register size = ToRegister(instr->size()); |
5369 ASSERT(!size.is(result)); | 5369 ASSERT(!size.is(result)); |
5370 __ SmiTag(size); | 5370 __ SmiTag(size); |
5371 __ push(size); | 5371 __ push(size); |
5372 } else { | 5372 } else { |
5373 int32_t size = ToInteger32(LConstantOperand::cast(instr->size())); | 5373 int32_t size = ToInteger32(LConstantOperand::cast(instr->size())); |
5374 __ Push(Smi::FromInt(size)); | 5374 if (size >= 0 && size <= Smi::kMaxValue) { |
| 5375 __ Push(Smi::FromInt(size)); |
| 5376 } else { |
| 5377 // We should never get here at runtime => abort |
| 5378 __ stop("invalid allocation size"); |
| 5379 return; |
| 5380 } |
5375 } | 5381 } |
5376 | 5382 |
5377 int flags = AllocateDoubleAlignFlag::encode( | 5383 int flags = AllocateDoubleAlignFlag::encode( |
5378 instr->hydrogen()->MustAllocateDoubleAligned()); | 5384 instr->hydrogen()->MustAllocateDoubleAligned()); |
5379 if (instr->hydrogen()->IsOldPointerSpaceAllocation()) { | 5385 if (instr->hydrogen()->IsOldPointerSpaceAllocation()) { |
5380 ASSERT(!instr->hydrogen()->IsOldDataSpaceAllocation()); | 5386 ASSERT(!instr->hydrogen()->IsOldDataSpaceAllocation()); |
5381 ASSERT(!instr->hydrogen()->IsNewSpaceAllocation()); | 5387 ASSERT(!instr->hydrogen()->IsNewSpaceAllocation()); |
5382 flags = AllocateTargetSpace::update(flags, OLD_POINTER_SPACE); | 5388 flags = AllocateTargetSpace::update(flags, OLD_POINTER_SPACE); |
5383 } else if (instr->hydrogen()->IsOldDataSpaceAllocation()) { | 5389 } else if (instr->hydrogen()->IsOldDataSpaceAllocation()) { |
5384 ASSERT(!instr->hydrogen()->IsNewSpaceAllocation()); | 5390 ASSERT(!instr->hydrogen()->IsNewSpaceAllocation()); |
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5900 __ lw(result, FieldMemOperand(scratch, | 5906 __ lw(result, FieldMemOperand(scratch, |
5901 FixedArray::kHeaderSize - kPointerSize)); | 5907 FixedArray::kHeaderSize - kPointerSize)); |
5902 __ bind(deferred->exit()); | 5908 __ bind(deferred->exit()); |
5903 __ bind(&done); | 5909 __ bind(&done); |
5904 } | 5910 } |
5905 | 5911 |
5906 | 5912 |
5907 #undef __ | 5913 #undef __ |
5908 | 5914 |
5909 } } // namespace v8::internal | 5915 } } // namespace v8::internal |
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