ff48700df9da9aa0c6a8c1f65c9d862f936e1a89 - LeafOS-Project/android_art

commit	ff48700df9da9aa0c6a8c1f65c9d862f936e1a89	[log] [tgz]
author	Roland Levillain <rpl@google.com>	Tue Mar 07 16:50:01 2017 +0000
committer	Roland Levillain <rpl@google.com>	Fri May 05 16:08:50 2017 +0100
tree	932dd5749a82d9477d24200db6d747d6008a0a5d
parent	15cb9753075bcaa5b91a6497a2d35e8bd98af1f0 [diff]

Improve the implementation of UnsafeCASObject with Baker read barriers.

On ARM and ARM64, avoid loading the reference altogether when the
GC is not marking.

Also, extract the code logic for updating a reference field from
GenerateReferenceLoadWithBakerReadBarrier routines and move it to
new routines (UpdateReferenceFieldWithBakerReadBarrier), to make
the implementation more legible.

Test: Run ART target tests in Baker read barrier configuration.
Bug: 29516974
Change-Id: I11c53f0607e997cd02ec7911725e98ef3dc97d90

compiler/optimizing/code_generator_arm.cc[diff]
compiler/optimizing/code_generator_arm.h[diff]
compiler/optimizing/code_generator_arm64.cc[diff]
compiler/optimizing/code_generator_arm64.h[diff]
compiler/optimizing/code_generator_arm_vixl.cc[diff]
compiler/optimizing/code_generator_arm_vixl.h[diff]
compiler/optimizing/intrinsics_arm.cc[diff]
compiler/optimizing/intrinsics_arm64.cc[diff]
compiler/optimizing/intrinsics_arm_vixl.cc[diff]

9 files changed

tree: 932dd5749a82d9477d24200db6d747d6008a0a5d