| cc89525c13894247cb82a1973617da6cba286f0c |
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21-Mar-2017 |
Aart Bik <ajcbik@google.com> |
Change 1/2 spill slots to more general number of spill slots.
Rationale:
This prepares requesting a different number of spill slots
during SIMD vectorization.
Bug: 34083438
Test: test-art-host, test-art-host-gtest-register_allocator_test
Change-Id: I6d22966ba483deec72b5eea5061c403c12b2ada7
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| 426b49c45d8088ff3114d3fbcec26db4e00c9324 |
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08-Nov-2016 |
Donghui Bai <donghui.bai@linaro.org> |
ARM(64): Improve the code generated for HSelect
Test: m test-art-target-run-test-566-checker-codegen-select
Test: m test-art-target-run-test-570-checker-select
Change-Id: If0140892303490701782df9a818e6d8346bf3d6c
Signed-off-by: Anton Kirilov <anton.kirilov@linaro.org>
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| 2c45bc9137c29f886e69923535aff31a74d90829 |
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25-Oct-2016 |
Vladimir Marko <vmarko@google.com> |
Remove H[Reverse]PostOrderIterator and HInsertionOrderIterator.
Use range-based loops instead, introducing helper functions
ReverseRange() for iteration in reverse order in containers.
When the contents of the underlying container change inside
the loop, use an index-based loop that better exposes the
container data modifications, compared to the old iterator
interface that's hiding it which may lead to subtle bugs.
Test: m test-art-host
Change-Id: I2a4e6c508b854c37a697fc4b1e8423a8c92c5ea0
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| 9620230700d4b451097c2163faa70627c9d8088a |
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05-Oct-2016 |
Aart Bik <ajcbik@google.com> |
Refactoring of graph linearization and linear order.
Rationale:
Ownership of graph's linear order and iterators was
a bit unclear now that other phases are using it.
New approach allows phases to compute their own
order, while ssa_liveness is sole owner for graph
(since it is not mutated afterwards).
Also shortens lifetime of loop's arena.
Test: test-art-host
Change-Id: Ib7137d1203a1e0a12db49868f4117d48a4277f30
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| 70e97462116a47ef2e582ea29a037847debcc029 |
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09-Aug-2016 |
Vladimir Marko <vmarko@google.com> |
Avoid excessive spill slots for slow paths.
Reducing the frame size makes stack maps smaller as we need
fewer bits for stack masks and some dex register locations
may use short location kind rather than long. On Nexus 9,
AOSP ToT, the boot.oat size reduction is
prebuilt multi-part boot image:
- 32-bit boot.oat: -416KiB (-0.6%)
- 64-bit boot.oat: -635KiB (-0.9%)
prebuilt multi-part boot image with read barrier:
- 32-bit boot.oat: -483KiB (-0.7%)
- 64-bit boot.oat: -703KiB (-0.9%)
on-device built single boot image:
- 32-bit boot.oat: -380KiB (-0.6%)
- 64-bit boot.oat: -632KiB (-0.9%)
on-device built single boot image with read barrier:
- 32-bit boot.oat: -448KiB (-0.6%)
- 64-bit boot.oat: -692KiB (-0.9%)
The other benefit is that at runtime, threads may need fewer
pages for their stacks, reducing overall memory usage.
We defer the calculation of the maximum spill size from
the main register allocator (linear scan or graph coloring)
to the RegisterAllocationResolver and do it based on the
live registers at slow path safepoints. The old notion of
an artificial slow path safepoint interval is removed as
it is no longer needed.
Test: Run ART test suite on host and Nexus 9.
Bug: 30212852
Change-Id: I40b3d114e278e2c5807982904fa49bf6642c6275
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| 542451cc546779f5c67840e105c51205a1b0a8fd |
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26-Jul-2016 |
Andreas Gampe <agampe@google.com> |
ART: Convert pointer size to enum
Move away from size_t to dedicated enum (class).
Bug: 30373134
Bug: 30419309
Test: m test-art-host
Change-Id: Id453c330f1065012e7d4f9fc24ac477cc9bb9269
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| 8f49d4b04bab40bfd32ed7c8dfe501dea172bd79 |
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14-Jul-2016 |
Matthew Gharrity <gharrma@google.com> |
Refactor register allocation to be pluggable
Allow alternate register allocation strategies to be implemented
in subclasses of a common register allocation base class.
Test: m test-art-host
Change-Id: I7c5866aa9ddff8f53fcaf721bad47654ab221b4f
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| 5d6e27d136756216c945d3fc5eb2ecc1537bfe7a |
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18-Jul-2016 |
Matthew Gharrity <gharrma@google.com> |
Refactor SSA deconstruction into its own class
Test: m test-art-host
Change-Id: Ie82c2802f76f27512ef922ba583caeccf5675063
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| e9288851eb6b62ece28f510d978d3793723b9a51 |
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14-Jul-2016 |
Matthew Gharrity <gharrma@google.com> |
Rename current register allocator implementation
This will allow a cleaner commit in an upcoming
refactoring of register allocation.
Test: m test-art-host
Change-Id: If420c97b088b3c934411ff83373e024003120746
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