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Enforce the layering that code in runtime/base should not depend on
runtime by separating it into libartbase. Some of the code in
runtime/base depends on the Runtime class, so it cannot be moved yet.
Also, some of the tests depend on CommonRuntimeTest, which itself needs
to be factored (in a subsequent CL).
Bug: 22322814
Test: make -j 50 checkbuild
make -j 50 test-art-host
Change-Id: I8b096c1e2542f829eb456b4b057c71421b77d7e2
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And reverse the order of fields in the Class::status_. This
avoids generated code size increase:
- ClassStatus in high bits allows class initialization
check using "status_high_byte < (kInitialized << 4)"
which is unaffected by the low 4 bits of LHS instead of
needing to extract the status bits,
- the type check bit string in the bottom bits instead of
somewehere in the middle allows the comparison on ARM
to be done using the same code size as with the old
layout in most cases (except when the compared value is
9-16 bits and not a modified immediate: 2 bytes less for
9-12 bits and sometimes 2 bytes more for 13-16 bits; the
latter could be worked around using LDRH if the second
character's boundary is at 16 bits).
Add one of the extra bits to the 2nd character to push its
boundary to 16 bits so that we can test an implementation
using 16-bit loads in a subsequent CL, arbitrarily add the
other three bits to the 3rd character. This CL is only
about making those bits available and allowing testing, the
determination of how to use the additonal bits for the best
impact (whether to have a 4th character or distribute them
differently among the three characters) shall be done later.
Test: m test-art-host-gtest
Test: testrunner.py --host --optimizing
Test: Pixel 2 XL boots.
Test: testrunner.py --target --optimizing
Bug: 64692057
Change-Id: I38c59837e3df3accb813fb1e04dc42e9afcd2d73
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Now that we updated to upstream cpplint, a lot of these NOLINTs are no
longer necessary.
Bug: 68951293
Change-Id: If8ed5ffe89727f313f907a214b6d8fd2a2eddbad
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Implement a BitString abstraction for storing nbit-sized characters in a
single machine word (uint32).
This is used to enable an O(1) subtype check in subsequent CLs.
Test: art/test.py -b -j32 --host --target
Bug: 64692057
Change-Id: I792405e0c34242cc1206cedeb18e3e6fb687d94b
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