History log of /art/compiler/dex/quick/quick_compiler.cc
Revision Date Author Comments
286763464072ffb599846f76720c7ec54392ae6e 24-Jun-2015 Nicolas Geoffray <ngeoffray@google.com> Use a flag from the verifier to know if we should compile.

Only used for the lack of bottom type in the aget-object case
for now. Could be used for more.

bug:21865466

(cherry picked from commit 4824c27988c8eeb302791624bb3ce1d557b0db6c)

Change-Id: I2bb7fe1d4737bd92c1076b5193607d74d8761ee7
3d21bdf8894e780d349c481e5c9e29fe1556051c 22-Apr-2015 Mathieu Chartier <mathieuc@google.com> Move mirror::ArtMethod to native

Optimizing + quick tests are passing, devices boot.

TODO: Test and fix bugs in mips64.

Saves 16 bytes per most ArtMethod, 7.5MB reduction in system PSS.
Some of the savings are from removal of virtual methods and direct
methods object arrays.

Bug: 19264997

(cherry picked from commit e401d146407d61eeb99f8d6176b2ac13c4df1e33)

Change-Id: I622469a0cfa0e7082a2119f3d6a9491eb61e3f3d

Fix some ArtMethod related bugs

Added root visiting for runtime methods, not currently required
since the GcRoots in these methods are null.

Added missing GetInterfaceMethodIfProxy in GetMethodLine, fixes
--trace run-tests 005, 044.

Fixed optimizing compiler bug where we used a normal stack location
instead of double on ARM64, this fixes the debuggable tests.

TODO: Fix JDWP tests.

Bug: 19264997

Change-Id: I7c55f69c61d1b45351fd0dc7185ffe5efad82bd3

ART: Fix casts for 64-bit pointers on 32-bit compiler.

Bug: 19264997
Change-Id: Ief45cdd4bae5a43fc8bfdfa7cf744e2c57529457

Fix JDWP tests after ArtMethod change

Fixes Throwable::GetStackDepth for exception event detection after
internal stack trace representation change.

Adds missing ArtMethod::GetInterfaceMethodIfProxy call in case of
proxy method.

Bug: 19264997
Change-Id: I363e293796848c3ec491c963813f62d868da44d2

Fix accidental IMT and root marking regression

Was always using the conflict trampoline. Also included fix for
regression in GC time caused by extra roots. Most of the regression
was IMT.

Fixed bug in DumpGcPerformanceInfo where we would get SIGABRT due to
detached thread.

EvaluateAndApplyChanges:
From ~2500 -> ~1980
GC time: 8.2s -> 7.2s due to 1s less of MarkConcurrentRoots

Bug: 19264997
Change-Id: I4333e80a8268c2ed1284f87f25b9f113d4f2c7e0

Fix bogus image test assert

Previously we were comparing the size of the non moving space to
size of the image file.

Now we properly compare the size of the image space against the size
of the image file.

Bug: 19264997
Change-Id: I7359f1f73ae3df60c5147245935a24431c04808a

[MIPS64] Fix art_quick_invoke_stub argument offsets.

ArtMethod reference's size got bigger, so we need to move other args
and leave enough space for ArtMethod* and 'this' pointer.

This fixes mips64 boot.

Bug: 19264997
Change-Id: I47198d5f39a4caab30b3b77479d5eedaad5006ab
c2d3221037734567442c5fb9b11a7967b5c87b79 07-May-2015 Vladimir Marko <vmarko@google.com> Quick: Abolish kMirOpCheckPart2.

The tricks played with kMirOpCheckPart2 are making the
native GC map generation unnecessarily complex. They have
caused problems in the past and now there is bad interaction
with the DCE. Rather than fixing it time and again, remove
the pseudo-insn.

(The whole purpose of those tricks seems to be to allow the
register tracking to be used for the throwing insn before
resetting the tracking for the next block. However, it's
questionable whether that's better than processing the
throwing insn with the subsequent instructions.)

Bug: 20736048

(cherry picked from commit e299f167c9559401548eab71678d4b779e46c2fb)

Change-Id: I8a60d26c5e6b6b608d68b8bb6b66d411f9a28f90
f80552b7e5f627a5dd07af017b7d65dec010ca48 07-May-2015 Vladimir Marko <vmarko@google.com> Quick: Abolish kMirOpCheckPart2.

The tricks played with kMirOpCheckPart2 are making the
native GC map generation unnecessarily complex. They have
caused problems in the past and now there is bad interaction
with the DCE. Rather than fixing it time and again, remove
the pseudo-insn.

(The whole purpose of those tricks seems to be to allow the
register tracking to be used for the throwing insn before
resetting the tracking for the next block. However, it's
questionable whether that's better than processing the
throwing insn with the subsequent instructions.)

Bug: 20736048

(cherry picked from commit e299f167c9559401548eab71678d4b779e46c2fb)

Change-Id: I8a60d26c5e6b6b608d68b8bb6b66d411f9a28f90
0b49f0234e5c01de23501b6a70f09f491fe7b3e0 07-May-2015 Vladimir Marko <vmarko@google.com> Quick: Abolish kMirOpCheckPart2.

The tricks played with kMirOpCheckPart2 are making the
native GC map generation unnecessarily complex. They have
caused problems in the past and now there is bad interaction
with the DCE. Rather than fixing it time and again, remove
the pseudo-insn.

(The whole purpose of those tricks seems to be to allow the
register tracking to be used for the throwing insn before
resetting the tracking for the next block. However, it's
questionable whether that's better than processing the
throwing insn with the subsequent instructions.)

Bug: 20736048

(cherry picked from commit e299f167c9559401548eab71678d4b779e46c2fb)

Change-Id: Ifae6c5bd961a2619b50fd3440261762cb9151460
e299f167c9559401548eab71678d4b779e46c2fb 07-May-2015 Vladimir Marko <vmarko@google.com> Quick: Abolish kMirOpCheckPart2.

The tricks played with kMirOpCheckPart2 are making the
native GC map generation unnecessarily complex. They have
caused problems in the past and now there is bad interaction
with the DCE. Rather than fixing it time and again, remove
the pseudo-insn.

(The whole purpose of those tricks seems to be to allow the
register tracking to be used for the throwing insn before
resetting the tracking for the next block. However, it's
questionable whether that's better than processing the
throwing insn with the subsequent instructions.)

Bug: 20736048
Change-Id: I4767e4609914d3b6990da4416e5093e4ca209780
c6e7845740b3e29d942d2892e465762afda37058 24-Apr-2015 Vladimir Marko <vmarko@google.com> Quick: Rely on inferred types in GVN/LVN/DCE.

Fix LVN::GetEndingVregValueNumberImpl() to check whether
the requested wideness matches the SSA register type as
recorded in MIRGraph::reg_location_.

Add DCHECKs that the wideness matches when getting/setting
sreg values, update Phi handling in LVN/DCE to use the type
from MIRGraph::reg_location_ instead of determining it from
the sreg value maps which would now trigger the DCHECKs.
Update tests to initialize MIRGraph::reg_location_.

Reenable DCE.

Bug: 20572509

(cherry picked from commit a5e69e87c630c08c0de1740427e60d531ce851b9)

Change-Id: Ieb97ac9e3672b977e36fd7f369a975bae7d5271e
a5e69e87c630c08c0de1740427e60d531ce851b9 24-Apr-2015 Vladimir Marko <vmarko@google.com> Quick: Rely on inferred types in GVN/LVN/DCE.

Fix LVN::GetEndingVregValueNumberImpl() to check whether
the requested wideness matches the SSA register type as
recorded in MIRGraph::reg_location_.

Add DCHECKs that the wideness matches when getting/setting
sreg values, update Phi handling in LVN/DCE to use the type
from MIRGraph::reg_location_ instead of determining it from
the sreg value maps which would now trigger the DCHECKs.
Update tests to initialize MIRGraph::reg_location_.

Reenable DCE.

Bug: 20572509
Change-Id: I1a4d4e32cd57807ca8b56d2f3ed5e1288660b82e
3c1c05a1e8eeff783f2854ee31bff8117ee274dd 25-Apr-2015 Roland Levillain <rpl@google.com> Disable Quick's GVN-based dead code elimination.

Quick's GVN/DCE seems to trouble the builds.

Bug: 20572509
Change-Id: I1e315b4eee4443f04c7cb2cef953d8e4eff619ce
ad67727a492df635aa54dbe58d6c0de54431f600 20-Apr-2015 Vladimir Marko <vmarko@google.com> Quick: Fix and enable DCE and improve GVN/DCE cleanup.

When eliminating a move by renaming its source register,
check that it doesn't conflict with vreg usage by insns
between the defining insn and the move.

Improve the GVN/DCE cleanup so that it can handle cases
where GVN or DCE is individually disabled in the pass driver
but not in the disable_opt flags.

Bug: 19419671
Change-Id: I49bb67b81509f51fbaf90c6016c509962be43736
2cebb24bfc3247d3e9be138a3350106737455918 22-Apr-2015 Mathieu Chartier <mathieuc@google.com> Replace NULL with nullptr

Also fixed some lines that were too long, and a few other minor
details.

Change-Id: I6efba5fb6e03eb5d0a300fddb2a75bf8e2f175cb
3773cd046b1c34569f4711666788bf8a389c7857 10-Apr-2015 Andreas Gampe <agampe@google.com> ART: Remove WriteElf from Compiler

As Portable is gone, we only have one elf_writer left. It also
allows to put the decision for 32b vs 64b ELF into a central
point.

Change-Id: Iae67d06df85268b3f0ee5725abc65edd23eb2499
1109fb3cacc8bb667979780c2b4b12ce5bb64549 07-Apr-2015 David Srbecky <dsrbecky@google.com> Implement CFI for Quick.

CFI is necessary for stack unwinding in gdb, lldb, and libunwind.

Change-Id: Ic3b84c9dc91c4bae80e27cda02190f3274e95ae8
3c54b0023fca579aae006dfa607fb14de5846c42 08-Apr-2015 Andreas Gampe <agampe@google.com> ART: Fix 64-bit ELF file support

The API wasn't cross-compile-safe, 32-bit patchoat would fail for
negative delta applied to a 64-bit ELF file.

Add 64-bit ELF file output to the compilers, behind a flag, currently
off by default (preserving current behavior).

Bug: 20095017
Change-Id: I2cde7b4c7cc83413c76692d7b745868d644a604c
20f85597828194c12be10d3a927999def066555e 19-Mar-2015 Vladimir Marko <vmarko@google.com> Fixed layout for dex caches in boot image.

Define a fixed layout for dex cache arrays (type, method,
string and field arrays) for dex caches in the boot image.
This gives those arrays fixed offsets from the boot image
code and allows PC-relative addressing of their elements.

Use the PC-relative load on arm64 for relevant instructions,
i.e. invoke-static, invoke-direct, const-string,
const-class, check-cast and instance-of. This reduces the
arm64 boot.oat on Nexus 9 by 1.1MiB.

This CL provides the infrastructure and shows on the arm64
the gains that we can achieve by having fixed dex cache
arrays' layout. To fully use this for the boot images, we
need to implement the PC-relative addressing for other
architectures. To achieve similar gains for apps, we need
to move the dex cache arrays to a .bss section of the oat
file. These changes will be implemented in subsequent CLs.

(Also remove some compiler_driver.h dependencies to reduce
incremental build times.)

Change-Id: Ib1859fa4452d01d983fd92ae22b611f45a85d69b
1095793154d2ff33323ba9edaa4f83373bdb6c8e 24-Mar-2015 Goran Jakovljevic <Goran.Jakovljevic@imgtec.com> [MIPS] Refactoring code for quick compiler

Code from compiler/dex/quick/mips64 is merged with code
in mips folder.

Change-Id: I785983c21549141306484647da86a0bb4815daaa
d7cbf8a6629942e7bd315ffae7e1c77b082f3e11 19-Mar-2015 Mathieu Chartier <mathieuc@google.com> Change RETURN_VOID_BARRIER to RETURN_VOID_NO_BARRIER

We want to default to having a barrier for the case where we don't
dex to dex.

Bug: 19762303
Change-Id: I60348d89eaf0b9e1e480298afcecbb5f52e8661b
216eaa2927f424821a03d7c4c6bf701fdb48e865 17-Mar-2015 Nicolas Geoffray <ngeoffray@google.com> Fall back to Quick when Optimizing cannot compile.

Currently applies when seeing unresolved types/methods/fields,
and methods with try/catch.

Change-Id: I93b12d440b39f0b9faf98f08f2bfddedfeff7182
9b34b244ecddd8a35c922ed87bc3df0ca4db0282 09-Mar-2015 Mathieu Chartier <mathieuc@google.com> Trim arenas for JIT

Moved arena pool into the runtime. Added arena trimming to arena
pool. When called, this madvises the used memory.

Changed the JIT compiler to trim arenas after compilation. Changed
the arena mmap name to dalvik-LinearAlloc.

Native PSS before:
80353 kB: Native
80775 kB: Native
78116 kB: Native
After:
73357 kB: Native
70181 kB: Native
70306 kB: Native

Bug: 17950037
Bug: 17643507
Bug: 19264997

Change-Id: I63e7a898fd6e909c2c677fa57b5917a7b1398930
6ea651f0f4c7de4580beb2e887d86802c1ae0738 24-Feb-2015 Maja Gagic <maja.gagic@imgtec.com> Initial support for quick compiler on MIPS64r6.

Change-Id: I6f43027b84e4a98ea320cddb972d9cf39bf7c4f8
e5f13e57ff8fa36342beb33830b3ec5942a61cca 24-Feb-2015 Mathieu Chartier <mathieuc@google.com> Revert "Revert "Add JIT""

Added missing EntryPointToCodePointer.

This reverts commit a5ca888d715cd0c6c421313211caa1928be3e399.

Change-Id: Ia74df0ef3a7babbdcb0466fd24da28e304e3f5af
a5ca888d715cd0c6c421313211caa1928be3e399 24-Feb-2015 Nicolas Geoffray <ngeoffray@google.com> Revert "Add JIT"

Sorry, run-test crashes on target:
0-05 12:15:51.633 I/DEBUG (27995): Abort message: 'art/runtime/mirror/art_method.cc:349] Check failed: PcIsWithinQuickCode(reinterpret_cast<uintptr_t>(code), pc) java.lang.Throwable java.lang.Throwable.fillInStackTrace() pc=71e3366b code=0x71e3362d size=ad000000'
10-05 12:15:51.633 I/DEBUG (27995): r0 00000000 r1 0000542b r2 00000006 r3 00000000
10-05 12:15:51.633 I/DEBUG (27995): r4 00000006 r5 b6f9addc r6 00000002 r7 0000010c
10-05 12:15:51.633 I/DEBUG (27995): r8 b63fe1e8 r9 be8e1418 sl b6427400 fp b63fcce0
10-05 12:15:51.633 I/DEBUG (27995): ip 0000542b sp be8e1358 lr b6e9a27b pc b6e9c280 cpsr 40070010
10-05 12:15:51.633 I/DEBUG (27995):

Bug: 17950037
This reverts commit 2535abe7d1fcdd0e6aca782b1f1932a703ed50a4.

Change-Id: I6f88849bc6f2befed0c0aaa0b7b2a08c967a83c3
2535abe7d1fcdd0e6aca782b1f1932a703ed50a4 17-Feb-2015 Mathieu Chartier <mathieuc@google.com> Add JIT

Currently disabled by default unless -Xjit is passed in.

The proposed JIT is a method JIT which works by utilizing interpreter
instrumentation to request compilation of hot methods async during
runtime.

JIT options:
-Xjit / -Xnojit
-Xjitcodecachesize:N
-Xjitthreshold:integervalue

The JIT has a shared copy of a compiler driver which is accessed
by worker threads to compile individual methods.

Added JIT code cache and data cache, currently sized at 2 MB
capacity by default. Most apps will only fill a small fraction of
this cache however.

Added support to the compiler for compiling interpreter quickened
byte codes.

Added test target ART_TEST_JIT=TRUE and --jit for run-test.

TODO:
Clean up code cache.
Delete compiled methods after they are added to code cache.
Add more optimizations related to runtime checks e.g. direct pointers
for invokes.
Add method recompilation.
Move instrumentation to DexFile to improve performance and reduce
memory usage.

Bug: 17950037

Change-Id: Ifa5b2684a2d5059ec5a5210733900aafa3c51bca
37e05bf384e21a031455c00b5fec668c187acd8d 18-Feb-2015 Vladimir Marko <vmarko@google.com> Quick: Disable DCE until we fix FP/Core reg mismatches.

GVN and TypeInference can miss some FP/Core register
mismatch:
const v0, #X ; marked as float
invoke-virtual v0, void foo(float)
const v0, #X ; marked as core
aput v0, v1, v2 ; float[] not used
The second const is eliminated by the DCE because it writes
the same value to the same dalvik reg. We replace the SSA
register name defined by the first const and used by the
invoke-virtual with the one defined by the second const.
When we generate code for the invoke-virtual, we get a core
location and may need a temporary to set up the FP argument
and we may not have an available temporary.

This may affect the bug below (more investigation needed).

Bug: 19419671
Change-Id: I44abd390706b980c346b36c9828a3bcb4e96726d
7a01dc2107d4255b445c32867d15d45fcebb3acd 02-Jan-2015 Vladimir Marko <vmarko@google.com> Dead code elimination based on GVN results.

Change-Id: I5b77411a8f088f0b561da14b123cf6b0501c9db5
5bdab12d8b48ca4c395d9d2c506ebff0df01b734 27-Jan-2015 Mathieu Chartier <mathieuc@google.com> Clean up pass driver

Added pass manager to hold the state which used to be in global
variables.

Static variables caused issues with Runtime.exit since they are
destroyed by the global destructors while threads are still
executing.

Bug: 17950037
Change-Id: Ie0e4546dc9e48909c8df996a5c135be682d50044
9c462086269324350516b3394d478f1d71a4b5d1 27-Jan-2015 Andreas Gampe <agampe@google.com> ART: Even more Quick cleanup

Remove Backend.

Change-Id: I247cc65ccda6a362ba1a8f5e73e7f12ecd980a87
0e92f4fa0079dad6d1df69abd13054a9885cba98 27-Jan-2015 Andreas Gampe <agampe@google.com> ART: More Quick cleanup

Remove frontend, move code to QuickCompiler.

Fix some includes.

Change-Id: Iedd8f339ec76635e48b166e285f7fc571fc948ac
0b9203e7996ee1856f620f95d95d8a273c43a3df 23-Jan-2015 Andreas Gampe <agampe@google.com> ART: Some Quick cleanup

Make several fields const in CompilationUnit. May benefit some Mir2Lir
code that repeats tests, and in general immutability is good.

Remove compiler_internals.h and refactor some other headers to reduce
overly broad imports (and thus forced recompiles on changes).

Change-Id: I898405907c68923581373b5981d8a85d2e5d185a
ee690a3dd364c025ebc1767d9f84097bb7473eec 01-Dec-2014 David Brazdil <dbrazdil@google.com> ART: Added Checker, a pattern matching test engine

This patch adds a Python script which implements a domain-specific
mini-language similar to that of LLVM's FileCheck. It is primarily
intended for writing tests for the optimizing compiler but could be
configured for other use cases too. It is implemented from scratch in
order to avoid dependency on LLVM.

Checker tests are written in Java and dex2oat is invoked with a flag
which dumps the CFG before and after each pass of the optimizing
compiler. The output is then compared against assertions in the
test's comments parsed by Checker. See comments in tools/checker.py
for more details about the currently supported language features.

This initial CL implements only one type of assertion - whether the
output contains lines matching a desired pattern in the given order -
but supports both plain text and regex matching and allows for
equivalency testing by matching for the outcome of a previous match.
See the tests in compiler/optimizing/test/ConstantFolding.java for
examples.

Change-Id: I1ad7431b399c38dc0391ccee74d2c643ba0b0675
956af0f0cb05422e38c1d22cbef309d16b8a1a12 11-Dec-2014 Elliott Hughes <enh@google.com> Remove portable.

Change-Id: I3bf3250fa866fd2265f1b115d52fa5dedc48a7fc
ffc605cd817e79d6c7602a87543bb31f24d3a99f 10-Dec-2014 Mathieu Chartier <mathieuc@google.com> Add missing iget quick for bool, byte, char, short

Bug: 17791557
Bug: 17671806
Change-Id: Ifac4fbfba6c3a3f97131e85914b24756fb7f9722
130914ed7175797c4cb851368200c22a6a17fdec 19-Nov-2014 Mathieu Chartier <mathieuc@google.com> Fix no relocate host tests

Change-Id: I905bf0327685d2119a2a5d157795e0e3f16286a7
785d2f2116bb57418d81bb55b55a087afee11053 04-Nov-2014 Andreas Gampe <agampe@google.com> ART: Replace COMPILE_ASSERT with static_assert (compiler)

Replace all occurrences of COMPILE_ASSERT in the compiler tree.

Change-Id: Icc40a38c8bdeaaf7305ab3352a838a2cd7e7d840
6a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866f 31-Oct-2014 Ian Rogers <irogers@google.com> Remove -Wno-unused-parameter and -Wno-sign-promo from base cflags.

Fix associated errors about unused paramenters and implict sign conversions.
For sign conversion this was largely in the area of enums, so add ostream
operators for the effected enums and fix tools/generate-operator-out.py.
Tidy arena allocation code and arena allocated data types, rather than fixing
new and delete operators.
Remove dead code.

Change-Id: I5b433e722d2f75baacfacae4d32aef4a828bfe1b
5667fdbb6e441dee7534ade18b628ed396daf593 23-Oct-2014 Zheng Xu <zheng.xu@arm.com> ARM: Use hardfp calling convention between java to java call.

This patch default to use hardfp calling convention. Softfp can be enabled
by setting kArm32QuickCodeUseSoftFloat to true.

We get about -1 ~ +5% performance improvement with different benchmark
tests. Hopefully, we should be able to get more performance by address the left
TODOs, as some part of the code takes the original assumption which is not
optimal.

DONE:
1. Interpreter to quick code
2. Quick code to interpreter
3. Transition assembly and callee-saves
4. Trampoline(generic jni, resolution, invoke with access check and etc.)
5. Pass fp arg reg following aapcs(gpr and stack do not follow aapcs)
6. Quick helper assembly routines to handle ABI differences
7. Quick code method entry
8. Quick code method invocation
9. JNI compiler

TODO:
10. Rework ArgMap, FlushIn, GenDalvikArgs and affected common code.
11. Rework CallRuntimeHelperXXX().

Change-Id: I9965d8a007f4829f2560b63bcbbde271bdcf6ec2
c8ccf68b805c92674545f63e0341ba47e8d9701c 30-Sep-2014 Andreas Gampe <agampe@google.com> ART: Fix some -Wpedantic errors

Remove extra semicolons.

Dollar signs in C++ identifiers are an extension.

Named variadic macros are an extension.

Binary literals are a C++14 feature.

Enum re-declarations are not allowed.

Overflow.

Change-Id: I7d16b2217b2ef2959ca69de84eaecc754517714a
f9b87b1eece0e03578c4d1b627f1d5e8691a539a 02-Sep-2014 Nicolas Geoffray <ngeoffray@google.com> Revert "Revert "ART: Prepare for ELF64.""

Fix was commited in "Fix frame size issue with 64-bit"

This reverts commit 7eebd95bddc7c6866ba29010d28b4f8251b43242.

Change-Id: I799b7fcab14ae24471d2f9d6d3a5e5cedd4aa7b8
7eebd95bddc7c6866ba29010d28b4f8251b43242 01-Sep-2014 Nicolas Geoffray <ngeoffray@google.com> Revert "ART: Prepare for ELF64."

Build fails on arm64 with error message:
art/compiler/elf_writer_quick.cc:1083:1: error: the frame size of 2016 bytes is larger than 1728 bytes [-Werror=frame-larger-than=]

This reverts commit 45b8f1ab2782d02830c77751f883456de799dfb6.

Change-Id: I61b2e5f27ba4b2b32eacaec51fb5e5ed12fd8066
45b8f1ab2782d02830c77751f883456de799dfb6 27-Aug-2014 Tong Shen <endlessroad@google.com> ART: Prepare for ELF64.

Make ElfWriterQuick a template class. No functionality change.

Change-Id: I62b60dc9795c4795027e80f0bee6b54622ea49e9
8d0d03e24325463f0060abfd05dba5598044e9b1 07-Jun-2014 Razvan A Lupusoru <razvan.a.lupusoru@intel.com> ART: Change temporaries to positive names

Changes compiler temporaries to have positive names. The numbering now
puts them above the code VRs (locals + ins, in that order). The patch also
introduces APIs to query the number of temporaries, locals and ins.

The compiler temp infrastructure suffered from several issues
which are also addressed by this patch:
-There is no longer a queue of compiler temps. This would be polluted
with Method* when post opts were called multiple times.
-Sanity checks have been added to allow requesting of temps from BE
and to prevent temps after frame is committed.
-None of the structures holding temps can overflow because they are
allocated to allow holding maximum temps. Thus temps can be requested
by BE with no problem.
-Since the queue of compiler temps is no longer maintained, it is no
longer possible to refer to a temp that has invalid ssa (because it
was requested before ssa was run).
-The BE can now request temps after all ME allocations and it is guaranteed
to actually receive them.
-ME temps are now treated like normal VRs in all cases with no special
handling. Only the BE temps are handled specially because there are no
references to them from MIRs.
-Deprecated and removed several fields in CompilationUnit that saved
register information and updated callsites to call the new interface from
MIRGraph.

Change-Id: Ia8b1fec9384a1a83017800a59e5b0498dfb2698c
Signed-off-by: Razvan A Lupusoru <razvan.a.lupusoru@intel.com>
Signed-off-by: Udayan Banerji <udayan.banerji@intel.com>
37f05ef45e0393de812d51261dc293240c17294d 17-Jul-2014 Fred Shih <ffred@google.com> Reduced memory usage of primitive fields smaller than 4-bytes

Reduced memory used by byte and boolean fields from 4 bytes down to a
single byte and shorts and chars down to two bytes. Fields are now
arranged as Reference followed by decreasing component sizes, with
fields shuffled forward as needed.

Bug: 8135266
Change-Id: I65eaf31ed27e5bd5ba0c7d4606454b720b074752
53c913bb71b218714823c8c87a1f92830c336f61 13-Aug-2014 Andreas Gampe <agampe@google.com> ART: Clean up compiler

Clean up the compiler: less extern functions, dis-entangle
compilers, hide some compiler specifics, lower global includes.

Change-Id: Ibaf88d02505d86994d7845cf0075be5041cc8438