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1 // Copyright 2011 the V8 project authors. All rights reserved. | 1 // Copyright 2011 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 #include "src/v8.h" | 5 #include "src/v8.h" |
6 | 6 |
7 #include "src/base/bits.h" | 7 #include "src/base/bits.h" |
8 #include "src/base/platform/platform.h" | 8 #include "src/base/platform/platform.h" |
9 #include "src/full-codegen.h" | 9 #include "src/full-codegen.h" |
10 #include "src/heap/mark-compact.h" | 10 #include "src/heap/mark-compact.h" |
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1471 Address new_top = old_top + aligned_size; | 1471 Address new_top = old_top + aligned_size; |
1472 int bytes_allocated = static_cast<int>(new_top - top_on_previous_step_); | 1472 int bytes_allocated = static_cast<int>(new_top - top_on_previous_step_); |
1473 heap()->incremental_marking()->Step(bytes_allocated, | 1473 heap()->incremental_marking()->Step(bytes_allocated, |
1474 IncrementalMarking::GC_VIA_STACK_GUARD); | 1474 IncrementalMarking::GC_VIA_STACK_GUARD); |
1475 UpdateInlineAllocationLimit(aligned_size); | 1475 UpdateInlineAllocationLimit(aligned_size); |
1476 top_on_previous_step_ = new_top; | 1476 top_on_previous_step_ = new_top; |
1477 if (alignment == kDoubleAligned) | 1477 if (alignment == kDoubleAligned) |
1478 return AllocateRawAligned(size_in_bytes, kDoubleAligned); | 1478 return AllocateRawAligned(size_in_bytes, kDoubleAligned); |
1479 else if (alignment == kDoubleUnaligned) | 1479 else if (alignment == kDoubleUnaligned) |
1480 return AllocateRawAligned(size_in_bytes, kDoubleUnaligned); | 1480 return AllocateRawAligned(size_in_bytes, kDoubleUnaligned); |
1481 return AllocateRaw(size_in_bytes); | 1481 return AllocateRawUnaligned(size_in_bytes); |
1482 } else if (AddFreshPage()) { | 1482 } else if (AddFreshPage()) { |
1483 // Switched to new page. Try allocating again. | 1483 // Switched to new page. Try allocating again. |
1484 int bytes_allocated = static_cast<int>(old_top - top_on_previous_step_); | 1484 int bytes_allocated = static_cast<int>(old_top - top_on_previous_step_); |
1485 heap()->incremental_marking()->Step(bytes_allocated, | 1485 heap()->incremental_marking()->Step(bytes_allocated, |
1486 IncrementalMarking::GC_VIA_STACK_GUARD); | 1486 IncrementalMarking::GC_VIA_STACK_GUARD); |
1487 top_on_previous_step_ = to_space_.page_low(); | 1487 top_on_previous_step_ = to_space_.page_low(); |
1488 if (alignment == kDoubleAligned) | 1488 if (alignment == kDoubleAligned) |
1489 return AllocateRawAligned(size_in_bytes, kDoubleAligned); | 1489 return AllocateRawAligned(size_in_bytes, kDoubleAligned); |
1490 else if (alignment == kDoubleUnaligned) | 1490 else if (alignment == kDoubleUnaligned) |
1491 return AllocateRawAligned(size_in_bytes, kDoubleUnaligned); | 1491 return AllocateRawAligned(size_in_bytes, kDoubleUnaligned); |
1492 return AllocateRaw(size_in_bytes); | 1492 return AllocateRawUnaligned(size_in_bytes); |
1493 } else { | 1493 } else { |
1494 return AllocationResult::Retry(); | 1494 return AllocationResult::Retry(); |
1495 } | 1495 } |
1496 } | 1496 } |
1497 | 1497 |
1498 | 1498 |
1499 #ifdef VERIFY_HEAP | 1499 #ifdef VERIFY_HEAP |
1500 // We do not use the SemiSpaceIterator because verification doesn't assume | 1500 // We do not use the SemiSpaceIterator because verification doesn't assume |
1501 // that it works (it depends on the invariants we are checking). | 1501 // that it works (it depends on the invariants we are checking). |
1502 void NewSpace::Verify() { | 1502 void NewSpace::Verify() { |
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3133 object->ShortPrint(); | 3133 object->ShortPrint(); |
3134 PrintF("\n"); | 3134 PrintF("\n"); |
3135 } | 3135 } |
3136 printf(" --------------------------------------\n"); | 3136 printf(" --------------------------------------\n"); |
3137 printf(" Marked: %x, LiveCount: %x\n", mark_size, LiveBytes()); | 3137 printf(" Marked: %x, LiveCount: %x\n", mark_size, LiveBytes()); |
3138 } | 3138 } |
3139 | 3139 |
3140 #endif // DEBUG | 3140 #endif // DEBUG |
3141 } | 3141 } |
3142 } // namespace v8::internal | 3142 } // namespace v8::internal |
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