| 20111d635e9210bdd105219eceb263607ec4d5c5 |
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10-Oct-2012 |
Anders O Nilsson <anders.o.nilsson@stericsson.com> |
JIT: Use rsb and shift in easy multiply.
For easy multiplication using reverse subtract (when
lit is 2^n-1) use the barrel shifter for rsb.
This improves arithmetic performance for code executing
in Dalvik. E.g String.hashCode.
Change-Id: Ifb086dcec344b30fd3e392ac21d508b43e820cdc
Signed-off-by: Patrik Ryd <patrik.ryd@stericsson.com>
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| bbbe552a31f7229708bfc748480ce538218ae076 |
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23-May-2013 |
buzbee <buzbee@google.com> |
JIT tuning; set cache size on command line
The tuning knobs for triggering trace compilation for the JIT
had not been revisited for several years. In that time, the
working set of some applications have significantly increased,
leading to frequent cache overlows & flushes.
This CL adds the ability to set the maximum size of the JIT's
cache on the command line, and we expect to use different settings
depending on device configuration (rule of thumb: 1K for each 1M
for system RAM, with 2M limit).
Additionally, the trace compilation trigger has been tightened to
limit the compilation of cold traces.
Change-Id: Ice22c5d9d46a93e465c57dd83f50ca3912f1672e
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| c83353bc0d7ddfedd3bc06fdb12f25710191e1e6 |
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30-Nov-2012 |
buzbee <buzbee@google.com> |
JIT: Performance fix for const doubles
Some recent Arm processors take a performance hit when
creating a floating point double by loading it as a pair of singles.
Legacy code to support soft floating point doubles as a pair of core
registers loaded double immediates in this way.
With the CL, we handle double immediates as a single unit.
(cherry-pick of c8129911e598ad0ca8d7b31012444ab6ce8bce45.)
Change-Id: Ic1512e34bfd233a6f5ffd58ce843965adbbad875
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| c8129911e598ad0ca8d7b31012444ab6ce8bce45 |
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30-Nov-2012 |
buzbee <buzbee@google.com> |
JIT: Performance fix for const doubles
Some recent Arm processors take a performance hit when
creating a floating point double by loading it as a pair of singles.
Legacy code to support soft floating point doubles as a pair of core
registers loaded double immediates in this way.
With the CL, we handle double immediates as a single unit.
Change-Id: I91aca9da6d4b38e180479dd8f75c82dbc7b4a526
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| 0c2dc522d0e120f346cf0a40c8cf0c93346131c2 |
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03-Jul-2012 |
Dong-Yuan Chen <dong-yuan.chen@intel.com> |
[X86] X86 trace JIT compiler support
This patch provides a fully functional x86 trace JIT compiler for Dalvik
VM. It is built on top of the existing x86 fast interpreter
with bug fixes and needed extension to support trace JIT interface. The
x86 trace JIT code generator was developed independent of the existing
template-based code generator and thus does not share exactly the same
infrastructure. Included in this patch are:
* Deprecated and removed the x86-atom fast interpreter that is no
longer functional since ICS.
* Augmented x86 fast interpreter to provide interfaces for x86 trace JIT
compiler.
* Added x86 trace JIT code generator with full JDWP debugging support.
* Method JIT and self-verification mode are not supported.
The x86 code generator uses the x86 instruction encoder/decoder library
from the Apache Harmony project. Additional wrapper extension and bug
fixes were added to support the x86 trace JIT code generator. The x86
instruction encoder/decoder is embedded inside the x86 code generator
under the libenc subdirectory.
Change-Id: I241113681963a16c13a3562390813cbaaa6eedf0
Signed-off-by: Dong-Yuan Chen <dong-yuan.chen@intel.com>
Signed-off-by: Yixin Shou <yixin.shou@intel.com>
Signed-off-by: Johnnie Birch <johnnie.l.birch.jr@intel.com>
Signed-off-by: Udayan <udayan.banerji@intel.com>
Signed-off-by: Sushma Kyasaralli Thimmappa <sushma.kyasaralli.thimmappa@intel.com>
Signed-off-by: Bijoy Jose <bijoy.a.jose@intel.com>
Signed-off-by: Razvan A Lupusoru <razvan.a.lupusoru@intel.com>
Signed-off-by: Tim Hartley <timothy.d.hartley@intel.com>
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| c1a4ab9c313d8a3d12007f2dbef7b5a6fa4ac2ef |
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06-Jan-2012 |
Steve Block <steveblock@google.com> |
Rename (IF_)LOGE(_IF) to (IF_)ALOGE(_IF) DO NOT MERGE
See https://android-git.corp.google.com/g/#/c/157220
Also fix an occurrence of LOGW missed in an earlier change.
Bug: 5449033
Change-Id: I2e3b23839e6dcd09015d6402280e9300c75e3406
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| 062bf509a77fce9dfcb7e7b2e401cf2a124d83d5 |
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20-Dec-2011 |
Steve Block <steveblock@google.com> |
Rename (IF_)LOGD(_IF) to (IF_)ALOGD(_IF) DO NOT MERGE
See https://android-git.corp.google.com/g/156016
Bug: 5449033
Change-Id: Ic663376d1ad6a6cb14bf81405ad9afd247cf2f60
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| 291c84f60853d30e1c0d79dd08c5e5164f588e26 |
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26-May-2011 |
Dan Bornstein <danfuzz@android.com> |
Prefer printf format "%#x" over "0x%x".
I exist to serve.
Change-Id: I8e2880b20eefd466da8515d5b6b0c5cb75d56169
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| 60fc806b679a3655c228b4093058c59941a49cfe |
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26-May-2011 |
Dan Bornstein <danfuzz@android.com> |
Further conservation of newlines.
Friends don't let friends end LOG() strings with newlines.
Change-Id: I5a18c766c90c4ab5f03caa6acd601d34d91beb00
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| 5d5b94c8d14b166af580d5dd5906db4f9527d6ca |
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20-Apr-2011 |
Carl Shapiro <cshapiro@google.com> |
Move the compiler into C++.
Change-Id: Idffbdb02c29e2be03a75f5a0a664603f2299504a
|