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Require mutator lock for that field and update tests to hold
the mutator lock when needed. This prevents GC thread that
executes a thread roots flip on behalf of suspended threads
from racing against construction or destruction of handle
scopes by those threads and possibly seeing invalid values.
(cherry picked from commit 1d326f94a3fdd6292ccdf0022cedfb2a2b8acfee)
Test: m test-art-host-gtest
Test: testrunner.py --host --optimizing
Bug: 189439174
Merged-In: I268a0ef6e5aa838347956febca0d3b6e02fe3ae5
Change-Id: If4cdcf4a488e77cb5aa7748de7c77c49f04388b0
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If PartialLSE encounters an instanceof or check-cast before the
escapes it could not correctly handle it. Due to how java language
code is typically developed and compiled this is generally not a
problem but could lead to incorrect codegen on release builds or
DCHECK failures on debug builds. This fixes the issues by (1) causing
partial LSE to consider check-cast and instance-ofs to be escaping.
This also updates the instruction simplifier to be much more
aggressive in removing instance-of and check-casts.
Test: ./test.py --host
Bug: 186041085
Change-Id: Ia513c4210a87a0dfa92f10adc530e17ee631d006
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In cases where all targets of a HPredicatedInstanceFieldGet
instruction are known to not be null the simplifier would attempt to
replace the default value with a null instruction. This would cause a
null-pointer dereference. Correct the simplifier to handle this case
correctly.
Moved some LSE test helper functions to CommonCompilerTestHelper to
avoid duplicating code.
Fixed an incorrect (though until now unused) constructor for
HPredicatatedInstanceFieldGet (the default value and target we
swapped).
Test: ./test.py --host
Test: ./art/tools/compile_jars.py --profile-file bad-compile.txt ~/imgur.apk
Bug: 183942773
Change-Id: I66f4ce37d768d5e457047a3f80bd4cb9aa4546a3
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