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Previously, the code item was not necessarily 32 bit aligned. This
caused bus errors on armv7.
Also create a real dexfile object instead of casting 0 initialized
memory to a dex file pointer. We just got lucky before that the cdex
boolean was false.
Test: test-art-target-gtest
Bug: 63756964
Bug: 71605148
Change-Id: Ic7199f2b97bbd421de1d702efa5c6531ff45c022
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Move all the DexFile related source to a common subdirectory dex/ of
runtime.
Bug: 71361973
Test: make -j 50 test-art-host
Change-Id: I59e984ed660b93e0776556308be3d653722f5223
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Passes using local ArenaAllocator were hiding their memory
usage from the allocation counting, making it difficult to
track down where memory was used. Using ScopedArenaAllocator
reveals the memory usage.
This changes the HGraph constructor which requires a lot of
changes in tests. Refactor these tests to limit the amount
of work needed the next time we change that constructor.
Test: m test-art-host-gtest
Test: testrunner.py --host
Test: Build with kArenaAllocatorCountAllocations = true.
Bug: 64312607
Change-Id: I34939e4086b500d6e827ff3ef2211d1a421ac91a
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Let clang-format reorder the header includes.
Derived with:
* .clang-format:
BasedOnStyle: Google
IncludeIsMainRegex: '(_test|-inl)?$'
* Steps:
find . -name '*.cc' -o -name '*.h' | xargs sed -i.bak -e 's/^#include/ #include/' ; git commit -a -m 'ART: Include cleanup'
git-clang-format -style=file HEAD^
manual inspection
git commit -a --amend
Test: mmma art
Change-Id: Ia963a8ce3ce5f96b5e78acd587e26908c7a70d02
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First step towards merging the two passes, which will later result in
HGraphBuilder directly producing SSA form. This CL mostly just updates
tests broken by not being able to inspect the pre-SSA form.
Using HLocals outside the HGraphBuilder is now deprecated.
Bug: 27150508
Change-Id: I00fb6050580f409dcc5aa5b5aa3a536d6e8d759e
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So we don't fallback to the interpreter in the presence of
irreducible loops.
Implications:
- A loop pre-header does not necessarily dominate a loop header.
- Non-constant redundant phis will be kept in loop headers, to
satisfy our linear scan register allocation algorithm.
- while-graph optimizations, such as gvn, licm, lse, and dce
need to know when they are dealing with irreducible loops.
Change-Id: I2cea8934ce0b40162d215353497c7f77d6c9137e
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Implement dchecked_vector<> template that DCHECK()s element
access and insert()/emplace()/erase() positions. Change the
ArenaVector<> and ScopedArenaVector<> aliases to use the new
template instead of std::vector<>. Remove DCHECK()s that
have now become unnecessary from the Optimizing compiler.
Change-Id: Ib8506bd30d223f68f52bd4476c76d9991acacadc
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Replace GrowableArray with ArenaVector in HGraph and related
classes HEnvironment, HLoopInformation, HInvoke and HPhi,
and tag allocations with new arena allocation types.
Change-Id: I3d79897af405b9a1a5b98bfc372e70fe0b3bc40d
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This code has no functionality change. It adds a placeholder
for chaining inlined frames.
Change-Id: I5ec57335af76ee406052345b947aad98a6a4423a
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The rule is in the way for better register allocation, as
it creates an artificial join point between multiple paths.
Change-Id: Ia4392890f95bcea56d143138f28ddce6c572ad58
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Moved arena pool into the runtime.
Motivation:
Allow GC to use arena allocators, recycle arena pool for linear alloc.
Bug: 19264997
Change-Id: I8ddbb6d55ee923a980b28fb656c758c5d7697c2f
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This patch refactors the way HGraph objects are created, moving the
instantiation out of the Builder class and creating the CodeGenerator
earlier. The patch uses this to build a single interface for printing
timings info and dumping the CFG.
Change-Id: I2eb63eabf28e2d0f5cdc7affaa690c3a4b1bdd21
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We forgot to bailout when we found a non-natural loop (on which
our optimizations don't work).
Change-Id: I11976b5af4c98f4f29267a74c74d34b5ad81e20c
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Allocator must survive its allocations (the pool is not enough).
Spotted by valgrind.
Change-Id: I7104a93e625995f1205710e6d07904b3d315e412
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We do three simplifications:
- Split critical edges, for code generation from SSA (new).
- Ensure one back edge per loop, to simplify loop recognition (new).
- Ensure only one pre header for a loop, to simplify SSA creation (existing).
Change-Id: I9bfccd4b236a00486a261078627b091c8a68be33
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