Commit Graph

321 Commits

Author SHA1 Message Date
cbruni
8eb09facb5 [counters] adding more counters and trace-events
V8 tracks already most useful information, but lacks proper tracing scopes
that make it possible to distinguish certain events from each other.
- add trace-scope to track lazy-parsing due to optimization
- add trace-scope to track code optimization

BUG=

Review URL: https://codereview.chromium.org/1661883003

Cr-Commit-Position: refs/heads/master@{#34002}
2016-02-15 17:29:32 +00:00
jarin
5418896400 Make the frame inspector use TranslatedState rather than the full deoptimizer.
This is mostly preparation for allowing the function closure to be materialized.

As a drive-by fix, I have added ignition source position support to the frame inspector (this fixed some ignition test failures).

Review URL: https://codereview.chromium.org/1698743002

Cr-Commit-Position: refs/heads/master@{#33975}
2016-02-15 07:36:57 +00:00
titzer
54404c4731 Clean up some random TODO(titzer)s and spelling mistakes.
R=mstarzinger@chromium.org
BUG=

Review URL: https://codereview.chromium.org/1698473003

Cr-Commit-Position: refs/heads/master@{#33955}
2016-02-12 17:30:20 +00:00
jarin
ab3b3bec86 [turbofan] Unwind and jump to the catch handler in the deoptimizer.
The idea here is to perform the handler lookup in the deoptimizer, and then take the information from the handler table to build the catch handler frame in the deoptimizer. Specifically, we use the pc offset, context location and stack height (in full-code) to tweak the output frame.

Sadly, this still requires nasty voodoo for the liveness analyzer so that it keeps variables alive if they are used in the catch handler.

Review URL: https://codereview.chromium.org/1416543006

Cr-Commit-Position: refs/heads/master@{#33936}
2016-02-12 10:15:32 +00:00
jarin
c0198937d8 Handlify DeoptimizedFrameInfo, remove custom GC iteration.
TBR=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/1695433002

Cr-Commit-Position: refs/heads/master@{#33926}
2016-02-12 05:50:23 +00:00
rmcilroy
a2935d63df [Interpreter] Save and restore dispatch table pointer during calls.
Saves and restores the dispatch pointer during calls to enable the debugger to
switch the dispatch table used by a function during it's execution.

Also moves the accumulator and context nodes to be Variables so that they will
be properly merged across branches.

BUG=v8:4280,v8:4690
LOG=N

Review URL: https://codereview.chromium.org/1684073002

Cr-Commit-Position: refs/heads/master@{#33894}
2016-02-11 13:11:07 +00:00
jarin
9dd5fe296b Use SharedFunctionInfo rather than the JSFunction in the deoptimizer (first step).
This removes uses of JSFunction by the (proper) deoptimizer. This will be useful
when we escape analyze JSFunction away. Unfortunately, the debugger still needs
JSFunction, so escape analysis would not work yet.

Review URL: https://codereview.chromium.org/1686183003

Cr-Commit-Position: refs/heads/master@{#33891}
2016-02-11 12:03:55 +00:00
jarin
6de51c4dc7 Remove the JS_FRAME_FUNCTION deoptimizer translation.
JS_FRAME_FUNCTION can be expressed using the STACK_SLOT translation.

Review URL: https://codereview.chromium.org/1688023003

Cr-Commit-Position: refs/heads/master@{#33882}
2016-02-11 08:25:04 +00:00
bmeurer
f6db05660e [builtins] Remove bunch of uses of %_Arguments and %_ArgumentsLength.
There are a bunch of places in our builtins where we use %_Arguments and
%_ArgumentsLength for no good reason, as arguments object and/or rest
parameter is as good and performant in these cases. Now the only uses
of %_Arguments and %_ArgumentsLength left are in string.js, which
requires dedicated investigation.

CQ_INCLUDE_TRYBOTS=tryserver.v8:v8_linux_nosnap_dbg
R=yangguo@chromium.org

Committed: https://crrev.com/2160429fd458e3c095475e718c97f77ac90d906f
Cr-Commit-Position: refs/heads/master@{#33834}

Review URL: https://codereview.chromium.org/1678953004

Cr-Commit-Position: refs/heads/master@{#33881}
2016-02-11 07:13:15 +00:00
yangguo
55438d6084 [interpreter, debugger] abstraction for source position calculation.
This change adds AbstractCode, which can be either Code or
BytecodeArray, and adds methods to calculate source position based
on that. Also cleans up to use code offsets instead of raw PC
where possible, and consistently uses the offset from instruction
start (as opposed to code object start).

R=rmcilroy@chromium.org, vogelheim@chromium.org
BUG=v8:4690
LOG=N

Review URL: https://codereview.chromium.org/1618343002

Cr-Commit-Position: refs/heads/master@{#33579}
2016-01-28 12:12:29 +00:00
rmcilroy
32eade634f [Interpreter] Fix deopting from inline functions.
Rename IntepreterExceptionEntryHandler builtin to InterpreterEnterBytecodeDispatch
and use it as the return address when building interpreter frames during deopt.
This ensures that we restart execution of the outer frame at the correct
bytecode.

BUG=v8:4280,v8:4678
LOG=N

Review URL: https://codereview.chromium.org/1633633002

Cr-Commit-Position: refs/heads/master@{#33512}
2016-01-26 12:23:02 +00:00
sigurds
b5a34b3d29 [turbofan] Make context deoptmizable
Escape analysis will eliminate the context, if possible. Materialization
must then ensure that the materialized object has the right map, and that
the context register is set accordingly.

R=jarin@chromium.org
BUG=569530,v8:4586
LOG=n

Review URL: https://codereview.chromium.org/1572293002

Cr-Commit-Position: refs/heads/master@{#33201}
2016-01-11 12:48:13 +00:00
sigurds
3b473d7aad [turbofan] Deopt support for escape analysis
Deopt support is added on two levels. On the IR level,
a new ObjectState node is added, which represenents an
object to be materialized. ObjectState nodes appear as
inputs of FrameState and StateValues nodes. On the
instruction select/code-generation level, the
FrameStateDescriptor class handles the nesting
introduced by ObjectState, and ensures that deopt code
with CAPTURED_OBJECT/DUPLICATED_OBJECT entries are
generated similarly to what crankshaft's escape
analysis does.

Two unittests test correctness of the IR level implementation.

Correctness for instruction selection / code generation
is tested by mjsunit tests.

R=jarin@chromium.org,mstarzinger@chromium.org
BUG=v8:4586
LOG=n

Review URL: https://codereview.chromium.org/1485183002

Cr-Commit-Position: refs/heads/master@{#33115}
2016-01-05 13:31:02 +00:00
rmcilroy
b10d24ff2c [Interpreter] Add basic deoptimization support from TurboFan to Ignition.
Adds support for generating deoptimization translations for interpreter
stack frames, and building interpreter frames for these translations
when a function deopts. Also adds builtins for
InterpreterNotifyDeoptimized which resume the function's continuation at
the correct point in the interpreter after deopt.

MIPS patch contributed by balazs.kilvady@igmtec.com

BUG=v8:4280
LOG=N
TEST=test-deoptimization.cc with --ignition and --turbo

Review URL: https://codereview.chromium.org/1528913003

Cr-Commit-Position: refs/heads/master@{#32971}
2015-12-18 18:35:00 +00:00
mstarzinger
eaa0e59611 Remove new.target value from construct stub frames.
This drops the specific slot containing the new.target value from our
construct stub frames. This side-channel has been deprecated and will
no longer be accessed by any consumers.

R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/1489353004

Cr-Commit-Position: refs/heads/master@{#32550}
2015-12-03 11:33:39 +00:00
rossberg
199bbdb40f Create ast/ and parsing/ subdirectories and move appropriate files
Moves all files related to AST and scopes into ast/,
and all files related to scanner & parser to parsing/.

Also eliminates a couple of spurious dependencies.

R=mstarzinger@chromium.org
BUG=

Review URL: https://codereview.chromium.org/1481613002

Cr-Commit-Position: refs/heads/master@{#32351}
2015-11-26 16:23:07 +00:00
jochen
aa9cfc8222 Make whether or not a Code object should be created by masm explicit
We always want to have an Isolate, so just use an extra ctor arg

BUG=2487
R=yangguo@chromium.org,mstarzinger@chromium.org
LOG=n

Review URL: https://codereview.chromium.org/1476763002

Cr-Commit-Position: refs/heads/master@{#32277}
2015-11-25 14:23:56 +00:00
verwaest
07c1d181e7 Rename original constructor to new target
BUG=

Review URL: https://codereview.chromium.org/1442643009

Cr-Commit-Position: refs/heads/master@{#32023}
2015-11-17 08:21:32 +00:00
jarin
673baa3cf4 [deoptimizer] Remove unused function argument.
Review URL: https://codereview.chromium.org/1439583002

Cr-Commit-Position: refs/heads/master@{#31940}
2015-11-11 10:45:37 +00:00
jarin
aea89b93d2 [deoptimizer] Fixes to printing, remove unused parameters.
Review URL: https://codereview.chromium.org/1425143008

Cr-Commit-Position: refs/heads/master@{#31870}
2015-11-09 06:08:13 +00:00
bmeurer
d08f9045a1 [turbofan] Introduce simplified NumberBitwise{Or,Xor,And} operators.
Currently we still (mis)used some machine operators in typed lowering
(namely Word32Or, Word32Xor and Word32And). But these operators are
"polymorphic" in the signedness of their inputs and output, hence the
representation selection (and thereby simplified lowering) was unable to
figure out whether a bitwise operation that was seen would produce an
unsigned or a signed result. If such nodes also have frame state uses,
the only safe choice was float64, which was not only a lot less ideal,
but also the main cause of the for-in related deoptimizer loops.

Adding dedicated NumberBitwiseOr, NumberBitwiseAnd and NumberBitwiseXor
simplified operators not only gives us precise (and correct) typing for
the bitwise operations, but also allows us to actually verify the graph
properly after typed lowering.

Drive-by-fix: Remove the double-to-smi magic from the Deoptimizer, which
is responsible for various deopt-loops in TurboFan, and is no longer
needed with the addition of the NumberBitwise operators.

R=jarin@chromium.org

Review URL: https://codereview.chromium.org/1422213002

Cr-Commit-Position: refs/heads/master@{#31594}
2015-10-27 09:08:19 +00:00
danno
5cf1c0bcf6 Re-reland: Remove register index/code indirection
Previous to this patch, both the lithium and TurboFan register
allocators tracked allocated registers by "indices", rather than
the register codes used elsewhere in the runtime. This patch
ensures that codes are used everywhere, and in the process cleans
up a bunch of redundant code and adds more structure to how the
set of allocatable registers is defined.

Some highlights of changes:

* TurboFan's RegisterConfiguration class moved to V8's top level
  so that it can be shared with Crankshaft.
* Various "ToAllocationIndex" and related methods removed.
* Code that can be easily shared between Register classes on
  different platforms is now shared.
* The list of allocatable registers on each platform is declared
  as a list rather than implicitly via the register index <->
  code mapping.

Committed: https://crrev.com/80bc6f6e11f79524e3f1ad05579583adfd5f18b2
Cr-Commit-Position: refs/heads/master@{#30913}

Committed: https://crrev.com/7b7a8205d9a00c678fb7a6e032a55fecbc1509cf
Cr-Commit-Position: refs/heads/master@{#31075}

Review URL: https://codereview.chromium.org/1287383003

Cr-Commit-Position: refs/heads/master@{#31087}
2015-10-02 16:55:22 +00:00
danno
00e07b0057 Revert of Reland: Remove register index/code indirection (patchset #20 id:380001 of https://codereview.chromium.org/1287383003/ )
Reason for revert:
Failures on MIPS

Original issue's description:
> Remove register index/code indirection
>
> Previous to this patch, both the lithium and TurboFan register
> allocators tracked allocated registers by "indices", rather than
> the register codes used elsewhere in the runtime. This patch
> ensures that codes are used everywhere, and in the process cleans
> up a bunch of redundant code and adds more structure to how the
> set of allocatable registers is defined.
>
> Some highlights of changes:
>
> * TurboFan's RegisterConfiguration class moved to V8's top level
>   so that it can be shared with Crankshaft.
> * Various "ToAllocationIndex" and related methods removed.
> * Code that can be easily shared between Register classes on
>   different platforms is now shared.
> * The list of allocatable registers on each platform is declared
>   as a list rather than implicitly via the register index <->
>   code mapping.
>
> Committed: https://crrev.com/80bc6f6e11f79524e3f1ad05579583adfd5f18b2
> Cr-Commit-Position: refs/heads/master@{#30913}
>
> Committed: https://crrev.com/7b7a8205d9a00c678fb7a6e032a55fecbc1509cf
> Cr-Commit-Position: refs/heads/master@{#31075}

TBR=akos.palfi@imgtec.com,bmeurer@chromium.org,jarin@chromium.org,paul.lind@imgtec.com,titzer@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Review URL: https://codereview.chromium.org/1380863004

Cr-Commit-Position: refs/heads/master@{#31083}
2015-10-02 15:37:06 +00:00
danno
7b7a8205d9 Remove register index/code indirection
Previous to this patch, both the lithium and TurboFan register
allocators tracked allocated registers by "indices", rather than
the register codes used elsewhere in the runtime. This patch
ensures that codes are used everywhere, and in the process cleans
up a bunch of redundant code and adds more structure to how the
set of allocatable registers is defined.

Some highlights of changes:

* TurboFan's RegisterConfiguration class moved to V8's top level
  so that it can be shared with Crankshaft.
* Various "ToAllocationIndex" and related methods removed.
* Code that can be easily shared between Register classes on
  different platforms is now shared.
* The list of allocatable registers on each platform is declared
  as a list rather than implicitly via the register index <->
  code mapping.

Committed: https://crrev.com/80bc6f6e11f79524e3f1ad05579583adfd5f18b2
Cr-Commit-Position: refs/heads/master@{#30913}

Review URL: https://codereview.chromium.org/1287383003

Cr-Commit-Position: refs/heads/master@{#31075}
2015-10-02 13:59:06 +00:00
alph
e0606c9f00 Move heap and CPU profilers into a dedicated directory.
Drive-by: remove unnecessary includes.

Review URL: https://codereview.chromium.org/1356223004

Cr-Commit-Position: refs/heads/master@{#30987}
2015-09-28 19:34:18 +00:00
danno
3ac27431a9 Revert of Remove register index/code indirection (patchset #17 id:320001 of https://codereview.chromium.org/1287383003/ )
Reason for revert:
Failures on greedy RegAlloc, Fuzzer

Original issue's description:
> Remove register index/code indirection
>
> Previous to this patch, both the lithium and TurboFan register
> allocators tracked allocated registers by "indices", rather than
> the register codes used elsewhere in the runtime. This patch
> ensures that codes are used everywhere, and in the process cleans
> up a bunch of redundant code and adds more structure to how the
> set of allocatable registers is defined.
>
> Some highlights of changes:
>
> * TurboFan's RegisterConfiguration class moved to V8's top level
>   so that it can be shared with Crankshaft.
> * Various "ToAllocationIndex" and related methods removed.
> * Code that can be easily shared between Register classes on
>   different platforms is now shared.
> * The list of allocatable registers on each platform is declared
>   as a list rather than implicitly via the register index <->
>   code mapping.
>
> Committed: https://crrev.com/80bc6f6e11f79524e3f1ad05579583adfd5f18b2
> Cr-Commit-Position: refs/heads/master@{#30913}

TBR=akos.palfi@imgtec.com,bmeurer@chromium.org,jarin@chromium.org,paul.lind@imgtec.com,titzer@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Review URL: https://codereview.chromium.org/1365073002

Cr-Commit-Position: refs/heads/master@{#30914}
2015-09-24 13:39:03 +00:00
danno
80bc6f6e11 Remove register index/code indirection
Previous to this patch, both the lithium and TurboFan register
allocators tracked allocated registers by "indices", rather than
the register codes used elsewhere in the runtime. This patch
ensures that codes are used everywhere, and in the process cleans
up a bunch of redundant code and adds more structure to how the
set of allocatable registers is defined.

Some highlights of changes:

* TurboFan's RegisterConfiguration class moved to V8's top level
  so that it can be shared with Crankshaft.
* Various "ToAllocationIndex" and related methods removed.
* Code that can be easily shared between Register classes on
  different platforms is now shared.
* The list of allocatable registers on each platform is declared
  as a list rather than implicitly via the register index <->
  code mapping.

Review URL: https://codereview.chromium.org/1287383003

Cr-Commit-Position: refs/heads/master@{#30913}
2015-09-24 12:53:13 +00:00
mlippautz
9fc4fc141f Make FlushICache part of Assembler(Base) and take Isolate as parameter.
BUG=chromium:524425
LOG=N

Review URL: https://codereview.chromium.org/1332283002

Cr-Commit-Position: refs/heads/master@{#30695}
2015-09-11 12:59:47 +00:00
mstarzinger
8d54fc2e87 [heap] Limit friendship of the Heap class to essentials.
This makes it clear that only components within the "heap" directory
should be friends with the Heap class. The two notable exceptions are
Factory and Isolate which represent external interfaces into the heap.

R=mlippautz@chromium.org

Review URL: https://codereview.chromium.org/1320843002

Cr-Commit-Position: refs/heads/master@{#30408}
2015-08-27 12:30:15 +00:00
rmcilroy
53ac9fe8f9 Add CompileInfo::GetDebugName()
Replaces all instances of the code which computed the debug
name of a stub or function with calls to CompileInfo::GetDebugName instead.

Also:
  - Removes useless parameter on CodeStub::GetMajorName
  - Removes FakeStubForTesting since it is no longer required
  - Adds CompileInfo::ShouldEnsureSpaceForLazyDeopt() to replace unclear calls to IsStub().

Review URL: https://codereview.chromium.org/1297203002

Cr-Commit-Position: refs/heads/master@{#30324}
2015-08-24 10:23:55 +00:00
mstarzinger
98a0fe0f32 Remove grab-bag includes of v8.h from everywhere.
R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/1285183010

Cr-Commit-Position: refs/heads/master@{#30263}
2015-08-20 07:44:15 +00:00
danno
cbbaf9ea6a [turbofan] Unify referencing of stack slots
Previously, it was not possible to specify StackSlotOperands for all
slots in both the caller and callee stacks. Specifically, the region
of the callee's stack including the saved return address, frame
pointer, function pointer and context pointer could not be addressed
by the register allocator/gap resolver.

In preparation for better tail call support, which will use the gap
resolver to reconcile outgoing parameters, this change makes it
possible to address all slots on the stack, because slots in the
previously inaccessible dead zone may become parameter slots for
outgoing tail calls. All caller stack slots are accessible as they
were before, with slot -1 corresponding to the last stack
parameter. Stack slot indices >= 0 access the callee stack, with slot
0 corresponding to the callee's saved return address, 1 corresponding
to the saved frame pointer, 2 corresponding to the current function
context, 3 corresponding to the frame marker/JSFunction, and slots 4
and above corresponding to spill slots.

The following changes were specifically	needed:

* Frame	has been changed to explicitly manage three areas of the
  callee frame, the fixed header, the spill slot area, and the
  callee-saved register area.
* Conversions from stack slot indices to fp offsets all now go through
  a common bottleneck: OptimizedFrame::StackSlotOffsetRelativeToFp
* The generation of deoptimization translation tables has been changed
  to support the new stack slot indexing scheme. Crankshaft, which
  doesn't support the new slot numbering in its register allocator,
  must adapt the indexes when creating translation tables.
* Callee-saved parameters are now kept below spill slots, not above,
  to support saving only the optimal set of used registers, which is
  only known after register allocation is finished and spill slots
  have been allocated.

Review URL: https://codereview.chromium.org/1261923007

Cr-Commit-Position: refs/heads/master@{#30224}
2015-08-18 14:48:11 +00:00
mstarzinger
19a49abf02 Realize IWYU pattern for frames-inl.h header.
R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/1283183002

Cr-Commit-Position: refs/heads/master@{#30127}
2015-08-12 10:28:47 +00:00
jarin
156a155be3 [deoptimizer] Fix the frame size calculation for debugger-inspectable frame construction.
The calculation now takes into account the size of the arguments object
if it is present in the optimized frame.

(Yang, many thanks for the awesome repro!)

BUG=chromium:514362
LOG=N
R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/1264483008

Cr-Commit-Position: refs/heads/master@{#29973}
2015-08-03 12:59:59 +00:00
jarin
f8dcbf4695 [deoptimizer] Do not pass arguments markers to the debugger.
This fixes a bug introduced by r28826 (Unify decoding of deoptimization
translations, https://codereview.chromium.org/1136223004), where we
started leaking arguments marker sentinel to the debugger, which would
then cause crashes. This change replaces the sentinel with the undefined
value in the debugger-inspectable frame.

BUG=chromium:514362
LOG=n
R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/1263333002

Cr-Commit-Position: refs/heads/master@{#29971}
2015-08-03 10:43:31 +00:00
yangguo
3be39a24bf Move Full-codegen into its own folder.
R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/1248443003

Cr-Commit-Position: refs/heads/master@{#29840}
2015-07-24 10:11:57 +00:00
mvstanton
3334b830a5 HydrogenCodeStubs consume stack arguments via descriptor.
All of this is controlled by the CallDescriptor. It's simply the case
that if you specify less registers than the function arity calls for,
the rest are assumed to be on the stack.

Bailout handlers accept these constant stack arguments too.

BUG=

Review URL: https://codereview.chromium.org/1250563004

Cr-Commit-Position: refs/heads/master@{#29813}
2015-07-23 14:00:15 +00:00
hpayer
4829bbc5d1 Revert "Directly remove slot buffer entries in deoptimized code objects."
This reverts commit 80b3f16951.

Revert "Record code slots that may point to evacuation candidate objects after deoptimizing them."

This reverts commit 4621210cfe.

BUG=chromium:507840
LOG=n

Review URL: https://codereview.chromium.org/1239383004

Cr-Commit-Position: refs/heads/master@{#29778}
2015-07-21 16:14:44 +00:00
mlippautz
3285e3bf07 Fix memento initialization when constructing from new call
Additionally, push the allocation site or undefined independently of creating a memento to preserve a fixed size for the construct frames.

BUG=

Review URL: https://codereview.chromium.org/1239593003

Cr-Commit-Position: refs/heads/master@{#29719}
2015-07-17 08:51:41 +00:00
rmcilroy
d02f62484e Move SmartPointer to base.
Review URL: https://codereview.chromium.org/1221433021

Cr-Commit-Position: refs/heads/master@{#29604}
2015-07-13 12:38:17 +00:00
mstarzinger
2027335f1c Remove unused byte from Map::instance_sizes field.
Note that there are currently no objects that require a pre-allocated
properties backing store, all such slots are in-object properties from
the begining. Hence {unused + pre_allocated - inobject == 0} holds.

R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/1226203011

Cr-Commit-Position: refs/heads/master@{#29590}
2015-07-13 08:26:36 +00:00
mstarzinger
e50c861b09 Remove separate construct stub for new.target users.
R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/1213623020

Cr-Commit-Position: refs/heads/master@{#29562}
2015-07-10 08:50:33 +00:00
hpayer
4621210cfe Record code slots that may point to evacuation candidate objects after deoptimizing them.
BUG=chromium:506811
LOG=n

Review URL: https://codereview.chromium.org/1225573002

Cr-Commit-Position: refs/heads/master@{#29466}
2015-07-03 12:13:57 +00:00
ishell
3997ae1b46 Remove deprecated v8::Object::TurnOnAccessCheck() from the V8 API.
The only right way to enable access checks is to install access check callbacks on an object template via v8::ObjectTemplate::SetAccessCheckCallbacks(). It does not make sense to enable access checks on an arbitrary object.

Review URL: https://codereview.chromium.org/1217893012

Cr-Commit-Position: refs/heads/master@{#29439}
2015-07-02 09:05:48 +00:00
danno
7015fd2053 Make context register implicit for CallInterfaceDescriptors
Up until now the context register was listed explicitly in each stub's
CallInterfaceDescriptor. This was problematic, because it was listed
first in the list of register parameters--which is fine for Crankshaft,
which is more or less built to handle the context as the first
parameter-- but not ideal for TurboFan, which adds the context at
the end of all function parameters. Now the context register is no
longer in the register list and can be handled appropriately by both
compilers. Specifically, this allows the FunctionType specified for
each CallInterfaceDescriptor to exactly match the parameter register
list.

Review URL: https://codereview.chromium.org/1211333003

Cr-Commit-Position: refs/heads/master@{#29402}
2015-07-01 08:45:12 +00:00
hpayer
80b3f16951 Directly remove slot buffer entries in deoptimized code objects.
BUG=

Review URL: https://codereview.chromium.org/1221643004

Cr-Commit-Position: refs/heads/master@{#29379}
2015-06-30 13:32:13 +00:00
arv
876ae42598 Unify the stack layout for construct frames
The stack layout was different for different ports.

BUG=v8:3887
LOG=N
R=dslomov@chromium.org, adamk@chromium.org

Review URL: https://codereview.chromium.org/1203103003

Cr-Commit-Position: refs/heads/master@{#29292}
2015-06-25 12:52:36 +00:00
balazs.kilvady
0acc511e62 MIPS: Fix unaligned memory access.
On MIPS32 we can't read a 8 bytes long data from a not 8 bytes aligned memory address.

BUG=
TEST=mjsunit/debug-backtrace

Review URL: https://codereview.chromium.org/1193433002

Cr-Commit-Position: refs/heads/master@{#29100}
2015-06-18 07:01:38 +00:00
jarin
ed977c972e Fix debug printing of inputs in the deoptimizer, pull out printing into separate methods.
Also fixed the duplicated output of context deopt.

BUG=

Review URL: https://codereview.chromium.org/1187533002

Cr-Commit-Position: refs/heads/master@{#29019}
2015-06-15 10:14:40 +00:00
bmeurer
cf21da7e48 [deoptimizer] Basic support inlining based on SharedFunctionInfo.
Up until now we can only inline based on JSFunction, because of the way
the deoptimization works.  With this change we will be able to inline
based on the SharedFunctionInfo and materialize the JSFunction from a
literal or a stack slot when necessary.

R=jarin@chromium.org

Review URL: https://codereview.chromium.org/1169103004

Cr-Commit-Position: refs/heads/master@{#28906}
2015-06-10 11:52:49 +00:00