| d59f3b1b7f5c1ab9f0731ff9dc60611e8d9a6ede |
|
29-Mar-2016 |
Vladimir Marko <vmarko@google.com> |
Use iterators "before" the use node in HUserRecord<>.
Create a new template class IntrusiveForwardList<> that
mimicks std::forward_list<> except that all allocations
are handled externally. This is essentially the same as
boost::intrusive::slist<> but since we're not using Boost
we have to reinvent the wheel.
Use the new container to replace the HUseList and use the
iterators to "before" use nodes in HUserRecord<> to avoid
the extra pointer to the previous node which was used
exclusively for removing nodes from the list. This reduces
the size of the HUseListNode by 25%, 32B to 24B in 64-bit
compiler, 16B to 12B in 32-bit compiler. This translates
directly to overall memory savings for the 64-bit compiler
but due to rounding up of the arena allocations to 8B, we
do not get any improvement in the 32-bit compiler.
Compiling the Nexus 5 boot image with the 64-bit dex2oat
on host this CL reduces the memory used for compiling the
most hungry method, BatteryStats.dumpLocked(), by ~3.3MiB:
Before:
MEM: used: 47829200, allocated: 48769120, lost: 939920
Number of arenas allocated: 345,
Number of allocations: 815492, avg size: 58
...
UseListNode 13744640
...
After:
MEM: used: 44393040, allocated: 45361248, lost: 968208
Number of arenas allocated: 319,
Number of allocations: 815492, avg size: 54
...
UseListNode 10308480
...
Note that while we do not ship the 64-bit dex2oat to the
device, the JIT compilation for 64-bit processes is using
the 64-bit libart-compiler.
Bug: 28173563
Bug: 27856014
(cherry picked from commit 46817b876ab00d6b78905b80ed12b4344c522b6c)
Change-Id: Ifb2d7b357064b003244e92c0d601d81a05e56a7b
|
| dee58d6bb6d567fcd0c4f39d8d690c3acaf0e432 |
|
07-Apr-2016 |
David Brazdil <dbrazdil@google.com> |
Revert "Revert "Refactor HGraphBuilder and SsaBuilder to remove HLocals""
This patch merges the instruction-building phases from HGraphBuilder
and SsaBuilder into a single HInstructionBuilder class. As a result,
it is not necessary to generate HLocal, HLoadLocal and HStoreLocal
instructions any more, as the builder produces SSA form directly.
Saves 5-15% of arena-allocated memory (see bug for more data):
GMS 20.46MB => 19.26MB (-5.86%)
Maps 24.12MB => 21.47MB (-10.98%)
YouTube 28.60MB => 26.01MB (-9.05%)
This CL fixed an issue with parsing quickened instructions.
Bug: 27894376
Bug: 27998571
Bug: 27995065
Change-Id: I20dbe1bf2d0fe296377478db98cb86cba695e694
|
| 60328910cad396589474f8513391ba733d19390b |
|
04-Apr-2016 |
David Brazdil <dbrazdil@google.com> |
Revert "Refactor HGraphBuilder and SsaBuilder to remove HLocals"
Bug: 27995065
This reverts commit e3ff7b293be2a6791fe9d135d660c0cffe4bd73f.
Change-Id: I5363c7ce18f47fd422c15eed5423a345a57249d8
|
| e3ff7b293be2a6791fe9d135d660c0cffe4bd73f |
|
02-Mar-2016 |
David Brazdil <dbrazdil@google.com> |
Refactor HGraphBuilder and SsaBuilder to remove HLocals
This patch merges the instruction-building phases from HGraphBuilder
and SsaBuilder into a single HInstructionBuilder class. As a result,
it is not necessary to generate HLocal, HLoadLocal and HStoreLocal
instructions any more, as the builder produces SSA form directly.
Saves 5-15% of arena-allocated memory (see bug for more data):
GMS 20.46MB => 19.26MB (-5.86%)
Maps 24.12MB => 21.47MB (-10.98%)
YouTube 28.60MB => 26.01MB (-9.05%)
Bug: 27894376
Change-Id: Iefe28d40600c169c5d306fd2c77034ae19476d90
|
| badd826664896d4a9628a5a89b78016894aa414b |
|
02-Feb-2016 |
David Brazdil <dbrazdil@google.com> |
ART: Run SsaBuilder from HGraphBuilder
First step towards merging the two passes, which will later result in
HGraphBuilder directly producing SSA form. This CL mostly just updates
tests broken by not being able to inspect the pre-SSA form.
Using HLocals outside the HGraphBuilder is now deprecated.
Bug: 27150508
Change-Id: I00fb6050580f409dcc5aa5b5aa3a536d6e8d759e
|
| b3e773eea39a156b3eacf915ba84e3af1a5c14fa |
|
26-Jan-2016 |
David Brazdil <dbrazdil@google.com> |
ART: Implement support for instruction inlining
Optimizing HIR contains 'non-materialized' instructions which are
emitted at their use sites rather than their defining sites. This
was not properly handled by the liveness analysis which did not
adjust the use positions of the inputs of such instructions.
Despite the analysis being incorrect, the current use cases never
produce incorrect code.
This patch generalizes the concept of inlined instructions and
updates liveness analysis to set the compute use positions correctly.
Change-Id: Id703c154b20ab861241ae5c715a150385d3ff621
|
| 4833f5a1990c76bc2be89504225fb13cca22bedf |
|
16-Dec-2015 |
David Brazdil <dbrazdil@google.com> |
ART: Refactor SsaBuilder for more precise typing info
This reverts commit 68289a531484d26214e09f1eadd9833531a3bc3c.
Now uses Primitive::Is64BitType instead of Primitive::ComponentSize
because it was incorrectly optimized by GCC.
Bug: 26208284
Bug: 24252151
Bug: 24252100
Bug: 22538329
Bug: 25786318
Change-Id: Ib39f3da2b92bc5be5d76f4240a77567d82c6bebe
|
| 68289a531484d26214e09f1eadd9833531a3bc3c |
|
16-Dec-2015 |
Alex Light <allight@google.com> |
Revert "ART: Refactor SsaBuilder for more precise typing info"
This reverts commit d9510dfc32349eeb4f2145c801f7ba1d5bccfb12.
Bug: 26208284
Bug: 24252151
Bug: 24252100
Bug: 22538329
Bug: 25786318
Change-Id: I5f491becdf076ff51d437d490405ec4e1586c010
|
| d9510dfc32349eeb4f2145c801f7ba1d5bccfb12 |
|
05-Nov-2015 |
David Brazdil <dbrazdil@google.com> |
ART: Refactor SsaBuilder for more precise typing info
This patch refactors the SsaBuilder to do the following:
1) All phis are constructed live and marked dead if not used or proved
to be conflicting.
2) Primitive type propagation, now not a separate pass, identifies
conflicting types and marks corresponding phis dead.
3) When compiling --debuggable, DeadPhiHandling used to revive phis
which had only environmental uses but did not attempt to resolve
conflicts. This pass was removed as obsolete and is now superseded
by primitive type propagation (identifying conflicting phis) and
SsaDeadPhiEliminiation (keeping phis live if debuggable + env use).
4) Resolving conflicts requires correct primitive type information
on all instructions. This was not the case for ArrayGet instructions
which can have ambiguous types in the bytecode. To this end,
SsaBuilder now runs reference type propagation and types ArrayGets
from the type of the input array.
5) With RTP being run inside the SsaBuilder, it is not necessary to
run it as a separate optimization pass. Optimizations can now assume
that all instructions of type kPrimNot have reference type info after
SsaBuilder (with the exception of NullConstant).
6) Graph now contains a reference type to be assigned to NullConstant.
All reference type instructions therefore have RTI, as now enforced
by the SsaChecker.
Bug: 24252151
Bug: 24252100
Bug: 22538329
Bug: 25786318
Change-Id: I7a3aee1ff66c82d64b4846611c547af17e91d260
|
| ec7802a102d49ab5c17495118d4fe0bcc7287beb |
|
01-Oct-2015 |
Vladimir Marko <vmarko@google.com> |
Add DCHECKs to ArenaVector and ScopedArenaVector.
Implement dchecked_vector<> template that DCHECK()s element
access and insert()/emplace()/erase() positions. Change the
ArenaVector<> and ScopedArenaVector<> aliases to use the new
template instead of std::vector<>. Remove DCHECK()s that
have now become unnecessary from the Optimizing compiler.
Change-Id: Ib8506bd30d223f68f52bd4476c76d9991acacadc
|
| fa6b93c4b69e6d7ddfa2a4ed0aff01b0608c5a3a |
|
15-Sep-2015 |
Vladimir Marko <vmarko@google.com> |
Optimizing: Tag arena allocations in HGraph.
Replace GrowableArray with ArenaVector in HGraph and related
classes HEnvironment, HLoopInformation, HInvoke and HPhi,
and tag allocations with new arena allocation types.
Change-Id: I3d79897af405b9a1a5b98bfc372e70fe0b3bc40d
|
| 0a23d74dc2751440822960eab218be4cb8843647 |
|
07-May-2015 |
Nicolas Geoffray <ngeoffray@google.com> |
Add a parent environment to HEnvironment.
This code has no functionality change. It adds a placeholder
for chaining inlined frames.
Change-Id: I5ec57335af76ee406052345b947aad98a6a4423a
|
| 0d9f17de8f21a10702de1510b73e89d07b3b9bbf |
|
15-Apr-2015 |
Nicolas Geoffray <ngeoffray@google.com> |
Move the linear order to the HGraph.
Bug found by Zheng Xu: SsaLivenessAnalysis being a stack allocated
object, we should not refer to it in later phases of the compiler.
Specifically, the code generator was using the linear order, which
was stored in the liveness analysis object.
Change-Id: I574641f522b7b86fc43f3914166108efc72edb3b
|
| fb8d279bc011b31d0765dc7ca59afea324fd0d0c |
|
01-Apr-2015 |
Mark Mendell <mark.p.mendell@intel.com> |
[optimizing] Implement x86/x86_64 math intrinsics
Implement floor/ceil/round/RoundFloat on x86 and x86_64.
Implement RoundDouble on x86_64.
Add support for roundss and roundsd on both architectures. Support them
in the disassembler as well.
Add the instruction set features for x86, as the 'round' instruction is
only supported if SSE4.1 is supported.
Fix the tests to handle the addition of passing the instruction set
features to x86 and x86_64.
Add assembler tests for roundsd and roundss to x86_64 assembler tests.
Change-Id: I9742d5930befb0bbc23f3d6c83ce0183ed9fe04f
Signed-off-by: Mark Mendell <mark.p.mendell@intel.com>
|
| 09b8463493aeb6ea2bce05f67d3457d5fcc8a7d9 |
|
13-Feb-2015 |
Mark Mendell <mark.p.mendell@intel.com> |
[optimizing compiler] x86 goodness
Implement the x86 version of
https://android-review.googlesource.com/#/c/129560/, which made some
enhancements to x86_64 code.
- Use leal to implement 3 operand adds
- Use testl rather than cmpl to 0 for registers
- Use leaq for x86_64 for adds with constant in int32_t range
Note:
- The range and register allocator tests seem quite fragile. I had to
change ADD_INT_LIT8 to XOR_INT_LIT8 for the register allocator test to
get the code to run. It seems like this is a bit hard-coded to
expected code generation sequences. I also changes BuildTwoAdds to
BuildTwoSubs for the same reason.
- For the live range test, I just changed the expected output, as the
Locations were different.
Change-Id: I402f2e95ddc8be4eb0befb3dae1b29feadfa29ab
Signed-off-by: Mark Mendell <mark.p.mendell@intel.com>
|
| b666f4805c8ae707ea6fd7f6c7f375e0b000dba8 |
|
18-Feb-2015 |
Mathieu Chartier <mathieuc@google.com> |
Move arenas into runtime
Moved arena pool into the runtime.
Motivation:
Allow GC to use arena allocators, recycle arena pool for linear alloc.
Bug: 19264997
Change-Id: I8ddbb6d55ee923a980b28fb656c758c5d7697c2f
|
| 5e8b137d28c840b128e2488f954cccee3e86db14 |
|
23-Jan-2015 |
David Brazdil <dbrazdil@google.com> |
Create HGraph outside Builder, print timings
This patch refactors the way HGraph objects are created, moving the
instantiation out of the Builder class and creating the CodeGenerator
earlier. The patch uses this to build a single interface for printing
timings info and dumping the CFG.
Change-Id: I2eb63eabf28e2d0f5cdc7affaa690c3a4b1bdd21
|
| ea55b934cff1280318f5514039549799227cfa3d |
|
27-Jan-2015 |
David Brazdil <dbrazdil@google.com> |
ART: Further refactor use lists
Change-Id: I9e3219575a508ca5141d851bfcaf848302480c32
|
| ed59619b370ef23ffbb25d1d01f615e60a9262b6 |
|
23-Jan-2015 |
David Brazdil <dbrazdil@google.com> |
Optimizing: Speed up HEnvironment use removal
Removal of use records from HEnvironment vregs involved iterating over
potentially large linked lists which made compilation of huge methods
very slow. This patch turns use lists into doubly-linked lists, stores
pointers to the relevant nodes inside HEnvironment and subsequently
turns the removals into constant-time operations.
Change-Id: I0e1d4d782fd624e7b8075af75d4adf0a0634a1ee
|
| cd6dffedf1bd8e6dfb3fb0c933551f9a90f7de3f |
|
08-Jan-2015 |
Calin Juravle <calin@google.com> |
Add implicit null checks for the optimizing compiler
- for backends: arm, arm64, x86, x86_64
- fixed parameter passing for CodeGenerator
- 003-omnibus-opcodes test verifies that NullPointerExceptions work as
expected
Change-Id: I1b302acd353342504716c9169a80706cf3aba2c8
|
| e53798a7e3267305f696bf658e418c92e63e0834 |
|
01-Dec-2014 |
Nicolas Geoffray <ngeoffray@google.com> |
Inlining support in optimizing.
Currently only inlines simple things that don't require an
environment, such as:
- Returning a constant.
- Returning a parameter.
- Returning an arithmetic operation.
Change-Id: Ie844950cb44f69e104774a3cf7a8dea66bc85661
|
| f537012ceb6cba8a78b36a5065beb9588451a250 |
|
02-Dec-2014 |
Nicolas Geoffray <ngeoffray@google.com> |
Treat SSA transformation special, as we may have to bailout.
We forgot to bailout when we found a non-natural loop (on which
our optimizations don't work).
Change-Id: I11976b5af4c98f4f29267a74c74d34b5ad81e20c
|
| a3c00e54f9b711bf3fc55ce5e7d4f8765e2ea9fa |
|
25-Nov-2014 |
Nicolas Geoffray <ngeoffray@google.com> |
Fix tests now that dead phis are removed when building SSA.
Change-Id: Ie795f5f1c7c44ec1a3ea2bac822b6255bfb8d45c
|
| 8e3964b766652a0478e8e0e303e8556c997675f1 |
|
17-Oct-2014 |
Nicolas Geoffray <ngeoffray@google.com> |
Remove the notion of dies at entry.
- Instead, explicitly say that the output does not overlap.
- Inputs that must be in a fixed register do die at entry,
as we know they have a location that others can not take.
- There is also no need to differentiate between an input move
and a connecting sibling move - those can be put in the
same parallel move instruction.
Change-Id: I1b2b2827906601f822b59fb9d6a21d48e43bae27
|
| 476df557fed5f0b3f32f8d11a654674bb403a8f8 |
|
09-Oct-2014 |
Roland Levillain <rpl@google.com> |
Use Is*() helpers to shorten code in the optimizing compiler.
Change-Id: I79f31833bc9a0aa2918381aa3fb0b05d45f75689
|
| 360231a056e796c36ffe62348507e904dc9efb9b |
|
08-Oct-2014 |
Nicolas Geoffray <ngeoffray@google.com> |
Fix code generation of materialized conditions.
Move the logic for knowing if a condition needs to be materialized
in an optimization pass (so that the information does not change
as a side effect of another optimization).
Also clean-up arm and x86_64 codegen:
- arm: ldr and str are for power-users when a constant is
in play. We should use LoadFromOffset and StoreToOffset.
- x86_64: fix misuses of movq instead of movl.
Change-Id: I01a03b91803624be2281a344a13ad5efbf4f3ef3
|
| 9ae0daa60c568f98ef0020e52366856ff314615f |
|
30-Sep-2014 |
Nicolas Geoffray <ngeoffray@google.com> |
Add support for inputs dying at entry of instructions.
- Start using it in places where it makes sense.
- Also improve suspend check on arm to use subs directly.
Change-Id: I09ac0589f5ccb9b850ee757c76dcbcf35ee8cd01
|
| 8ddb00ca935733f5d3b07816e5bb33d6cabe6ec4 |
|
29-Sep-2014 |
Nicolas Geoffray <ngeoffray@google.com> |
Improve detection of lifetime holes.
The check concluding that the next use was in a successor
was too conservative: two blocks following each other
in terms of liveness are not necessarily predecessor/sucessor.
Change-Id: Ideec98046c812aa5fb63781141b5fde24c706d6d
|
| 9ebc72c99e6b703bda611d7c918c9cf3dfb43e55 |
|
25-Sep-2014 |
Nicolas Geoffray <ngeoffray@google.com> |
Make suspend checks note have side effects.
Also adjust gtests.
Change-Id: I5e1a3e53115812b45ec7f4b6f50ba468fa7ac6b1
|
| fbc695f9b8e2084697e19c1355ab925f99f0d235 |
|
15-Sep-2014 |
Nicolas Geoffray <ngeoffray@google.com> |
Revert "Revert "Implement suspend checks in new compiler.""
This reverts commit 7e3652c45c30c1f2f840e6088e24e2db716eaea7.
Change-Id: Ib489440c34e41cba9e9e297054f9274f6e81a2d8
|
| 8a16d97fb8f031822b206e65f9109a071da40563 |
|
11-Sep-2014 |
Nicolas Geoffray <ngeoffray@google.com> |
Fix valgrind errors.
For now just stack allocate the code generator. Will think
about cleaning up the root problem later (CodeGenerator being an
arena object).
Change-Id: I161a6f61c5f27ea88851b446f3c1e12ee9c594d7
|
| e50383288a75244255d3ecedcc79ffe9caf774cb |
|
04-Jul-2014 |
Nicolas Geoffray <ngeoffray@google.com> |
Support fields in optimizing compiler.
- Required support for temporaries, to be only used by baseline compiler.
- Also fixed a few invalid assumptions around locations and instructions
that don't need materialization. These instructions should not have an Out.
Change-Id: Idc4a30dd95dd18015137300d36bec55fc024cf62
|
| 31d76b42ef5165351499da3f8ee0ac147428c5ed |
|
09-Jun-2014 |
Nicolas Geoffray <ngeoffray@google.com> |
Plug code generator into liveness analysis.
Also implement spill slot support.
Change-Id: If5e28811e9fbbf3842a258772c633318a2f4fafc
|
| ec7e4727e99aa1416398ac5a684f5024817a25c7 |
|
06-Jun-2014 |
Nicolas Geoffray <ngeoffray@google.com> |
Fix some bugs in graph construction/simplification methods.
Also fix a brano during SSA construction. The code should
not have been commented out. Added a test to cover what the code
intends.
Change-Id: Ia00ae79dcf75eb0d412f07649d73e7f94dbfb6f0
|
| ffddfdf6fec0b9d98a692e27242eecb15af5ead2 |
|
03-Jun-2014 |
Tim Murray <timmurray@google.com> |
DO NOT MERGE
Merge ART from AOSP to lmp-preview-dev.
Change-Id: I0f578733a4b8756fd780d4a052ad69b746f687a9
|
| a7062e05e6048c7f817d784a5b94e3122e25b1ec |
|
22-May-2014 |
Nicolas Geoffray <ngeoffray@google.com> |
Add a linear scan register allocator to the optimizing compiler.
This is a "by-the-book" implementation. It currently only deals
with allocating registers, with no hint optimizations.
The changes remaining to make it functional are:
- Allocate spill slots.
- Resolution and placements of Move instructions.
- Connect it to the code generator.
Change-Id: Ie0b2f6ba1b98da85425be721ce4afecd6b4012a4
|
| ddb311fdeca82ca628fed694c4702f463b5c4927 |
|
16-May-2014 |
Nicolas Geoffray <ngeoffray@google.com> |
Build live ranges in preparation for register allocation.
Change-Id: I7ae24afaa4e49276136bf34f4ba7d62db7f28c01
|