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Test: Rely on TH (comment-only change).
Bug: 36692143
Change-Id: I1895a56c6aec7a0018bebff21de01c5f756fbdb2
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Bug: 260881207
Test: presubmit
Test: abtd app_compat_drm
Test: abtd app_compat_top_100
Test: abtd app_compat_banking
Change-Id: Id729aca1d8b6d003ff3e9755112f3283e9f2b507
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Pass enums by value instead of const reference.
Do not generate operator<< sources for headers that have no
enums or no declarations of operator<<. Do not define the
operator<< for flag enums; these were unused anyway.
Add generated operator<< for some enums in nodes.h . Change
the operator<< for ComparisonBias so that the graph
visualizer can use it but do not use the generated
operator<< yet as that would require changing checker tests.
Test: m test-art-host-gtest
Test: testrunner.py --host --optimizing
Change-Id: Ifd4c455c2fa921a9668c966a13068d43b9c6e173
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At runtime, we won't run the verifier for those classes, but run with
access checks enabled in the interpreter.
Bug: 157265232
Test: test.py
Change-Id: Ia087c3b6f9fcbd295307333e524945d844ef54dc
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Previously all class initialization checks involved a memory
barrier to ensure appropriate memory visibility. We change
that by introducing the kVisiblyInitialized status which can
be checked without a memory barrier. Before we mark a class
as visibly initialized, we run a checkpoint on all threads
to ensure memory visibility. This is done in batches for up
to 32 classes to reduce the overhead.
Avoiding memory barriers in the compiled code reduces code
size and improves performance. This is also the first step
toward fixing a long-standing synchronization bug 18161648.
Prebuilt sizes for aosp_taimen-userdebug:
- before:
arm/boot*.oat: 19150696
arm64/boot*.oat: 22574336
oat/arm64/services.odex: 21929800
- after:
arm/boot*.oat: 19134508 (-16KiB)
arm64/boot*.oat: 22553664 (-20KiB)
oat/arm64/services.odex: 21888760 (-40KiB)
Test: m test-art-host-gtest
Test: testrunner.py --host --optimizing
Test: aosp_taimen-userdebug boots
Test: run-gtests.sh -j4
Test: testrunner.py --target --optimizing
Test: Manually diff `m dump-oat-boot` output from before
with output after this CL without codegen changes,
with `sed` replacements for class status. Check that
only checksums and the oatdump runtime values of
DexCache.dexFile differ.
Bug: 18161648
Bug: 36692143
Change-Id: Ida10439d347e680a0abf4674546923374ffaa957
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In preparation for extending the type check bit string from
24 to 28 bits, rewrite ClassStatus to fit into 4 bits. Also
perform a proper cleanup of the ClassStatus, i.e. change it
to an enum class, remove the "Status" word from enumerator
names, replace "Max" with "Last" in line with other
enumerations and remove aliases from mirror::Class.
Test: m test-art-host-gtest
Test: testrunner.py --host --optimizing
Test: Pixel 2 XL boots.
Test: testrunner.py --target --optimizing
Bug: 64692057
Bug: 65318848
Change-Id: Iec1610ba5dac2c527b36c12819f132e1a77f2d45
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Integrate the previous CLs into ART Runtime. Subsequent CLs to add
optimizing compiler support.
Use spare 24-bits from "Class#status_" field to
implement faster subtype checking in the runtime. Does not incur any extra memory overhead,
and (when in compiled code) this is always as fast or faster than the original check.
The new subtype checking is O(1) of the form:
src <: target :=
(*src).status >> #imm_target_mask == #imm_target_shifted
Based on the original prototype CL by Zhengkai Wu:
https://android-review.googlesource.com/#/c/platform/art/+/440996/
Test: art/test.py -b -j32 --host
Bug: 64692057
Change-Id: Iec3c54af529055a7f6147eebe5611d9ecd46942b
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Move the enum to its own file to lower include burden on others.
This is an intentionally small and localized change. Users will
be cleaned up in a follow-up.
Bug: 63467744
Bug: 65318848
Test: m test-art-host
Change-Id: If3bfe6953973e24623e78a2a8dcc69b50117aa3c
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