Commit Graph

346 Commits

Author SHA1 Message Date
mstarzinger
1c85735710 Allow for optimized code map to have zero entries.
This allows the optimized code map to contain no context-dependent
entries, but still hold one context-independent entry. This is a
precursor to extending the lifetime of the context-independent entry.

R=mvstanton@chromium.org

Review URL: https://codereview.chromium.org/1249543005

Cr-Commit-Position: refs/heads/master@{#29788}
2015-07-22 11:46:56 +00:00
bbudge
6113058427 Expose SIMD.Float32x4 type to Javascript.
This CL exposes the constructor function, defines type related
information, and implements value type semantics.
It also refactors test/mjsunit/samevalue.js to test SameValue and SameValueZero.

TEST=test/mjsunit/harmony/simd.js, test/cctest/test-simd.cc

LOG=Y
BUG=v8:4124

Committed: https://crrev.com/e5ed3bee99807c502fa7d7a367ec401e16d3f773
Cr-Commit-Position: refs/heads/master@{#29689}

Review URL: https://codereview.chromium.org/1219943002

Cr-Commit-Position: refs/heads/master@{#29712}
2015-07-16 19:43:32 +00:00
hablich
40c38c5a5a Revert of Expose SIMD.Float32x4 type to Javascript. (patchset id:450001 of https://codereview.chromium.org/1219943002/)
Reason for revert:
Seems to brake the latest roll into Chromium: http://build.chromium.org/p/tryserver.chromium.win/builders/win_chromium_compile_dbg_ng/builds/59796/steps/compile%20%28with%20patch%29/logs/stdio

Original issue's description:
> Expose SIMD.Float32x4 type to Javascript.
> This CL exposes the constructor function, defines type related
> information, and implements value type semantics.
> It also refactors test/mjsunit/samevalue.js to test SameValue and SameValueZero.
>
> TEST=test/mjsunit/harmony/simd.js, test/cctest/test-simd.cc
>
> LOG=Y
> BUG=v8:4124
>
> Committed: https://crrev.com/e5ed3bee99807c502fa7d7a367ec401e16d3f773
> Cr-Commit-Position: refs/heads/master@{#29689}

TBR=rossberg@chromium.org,littledan@chromium.org,martyn.capewell@arm.com,bbudge@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:4124

Review URL: https://codereview.chromium.org/1241533004

Cr-Commit-Position: refs/heads/master@{#29701}
2015-07-16 12:36:11 +00:00
bbudge
e5ed3bee99 Expose SIMD.Float32x4 type to Javascript.
This CL exposes the constructor function, defines type related
information, and implements value type semantics.
It also refactors test/mjsunit/samevalue.js to test SameValue and SameValueZero.

TEST=test/mjsunit/harmony/simd.js, test/cctest/test-simd.cc

LOG=Y
BUG=v8:4124

Review URL: https://codereview.chromium.org/1219943002

Cr-Commit-Position: refs/heads/master@{#29689}
2015-07-15 19:17:06 +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
ishell
f87286e2db Loads and stores to global vars are now made via property cell shortcuts installed into parent script context.
This CL also adds hydrogen stubs for global loads and global stores, full-codegen and TurboFan now uses this machinery.

Review URL: https://codereview.chromium.org/1224793002

Cr-Commit-Position: refs/heads/master@{#29592}
2015-07-13 09:18:57 +00:00
verwaest
c8211b64cd Distinguish slow from fast sloppy arguments
BUG=v8:4137
LOG=n

Review URL: https://codereview.chromium.org/1221713003

Cr-Commit-Position: refs/heads/master@{#29447}
2015-07-02 14:38:53 +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
conradw
7281f80151 [strong] Implement strong property access semantics
Revert "Revert relanded strong property access CL"

Regression issues should be solved. Initial patchset is the original, subsequent patchsets are the fixing modifications.

This reverts commit 4ac7be5656.

BUG=v8:3956
LOG=N

Review URL: https://codereview.chromium.org/1199983002

Cr-Commit-Position: refs/heads/master@{#29384}
2015-06-30 15:24:43 +00:00
mstarzinger
317cb6538c [turbofan] Implement sharing of context-independent code.
This allows context-independent code generated by TurboFan to be cached
in the optimized code map and reused across native contexts. Note that
currently this cache is still flushed at GC time.

R=bmeurer@chromium.org,mvstanton@chromium.org
TEST=cctest/test-compiler/OptimizedCodeSharing

Review URL: https://codereview.chromium.org/1208013002

Cr-Commit-Position: refs/heads/master@{#29313}
2015-06-26 09:07:45 +00:00
mstarzinger
8f6bca542f Remove overzealous checking of --cache-optimized-code flag.
R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/1206803003

Cr-Commit-Position: refs/heads/master@{#29284}
2015-06-25 09:45:11 +00:00
danno
c019d7f498 Use big-boy Types to annotate interface descriptor parameters
- Thread Type::FunctionType through stubs and the TF pipeline.
- Augment Typer to decorate parameter nodes with types from
  a Type::FunctionType associated with interface descriptors.
- Factor interface descriptors into platform-specific and
  platform-independent components so that all descriptors share
  a common Type::FunctionType for all platforms.

Review URL: https://codereview.chromium.org/1197703002

Cr-Commit-Position: refs/heads/master@{#29248}
2015-06-24 06:22:04 +00:00
conradw
4ac7be5656 Revert relanded strong property access CL
Reason:
Regressions in various benchmarks.

Revert "Revert of Revert of [strong] Implement strong mode restrictions on property access (patchset  id:1 of https://codereview.chromium.org/1189153002/)"

This reverts commit 41405c0470.

Revert "X87: Revert of Revert of [strong] Implement strong mode restrictions on property access."

This reverts commit 48de5f4d6b.

Revert "Fix overlapping KeyedLoadIC bitfield."

This reverts commit 4e6c956abf.

Revert "MIPS64: Fix 'Revert of Revert of [strong] Implement strong mode restrictions on property access'."

This reverts commit 74f97b0d2a.

BUG=

Review URL: https://codereview.chromium.org/1199493002

Cr-Commit-Position: refs/heads/master@{#29166}
2015-06-19 19:00:53 +00:00
conradw
41405c0470 Revert of Revert of [strong] Implement strong mode restrictions on property access (patchset id:1 of https://codereview.chromium.org/1189153002/)
Reason for revert:
Issue was ultimately caused/fixed by https://codereview.chromium.org/1194673002/

Original issue's description:
> Revert of [strong] Implement strong mode restrictions on property access (patchset  id:460001 of https://codereview.chromium.org/1168093002/)
>
> Reason for revert:
> Speculative revert, maybe breaks GC-stress
>
> http://build.chromium.org/p/client.v8/builders/V8%20Linux64%20GC%20Stress%20-%20custom%20snapshot/builds/808
>
> Original issue's description:
> > [strong] Implement strong mode restrictions on property access
> >
> > Implements the strong mode proposal's restrictions on property access.
> >
> > To be fully explored in a followup: proxies, interceptors, access checks, load from super
> >
> > BUG=v8:3956
> > LOG=N
> >
> > Committed: https://crrev.com/85dbfb9a389e7b21bd2a63862202ee97fc5d7982
> > Cr-Commit-Position: refs/heads/master@{#29109}
>
> TBR=rossberg@chromium.org,mvstanton@chromium.org,mstarzinger@chromium.org,verwaest@chromium.org
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=v8:3956
>
> Committed: https://crrev.com/407657b706711fd5f8d417841e24b284886f3776
> Cr-Commit-Position: refs/heads/master@{#29115}

TBR=rossberg@chromium.org,mvstanton@chromium.org,mstarzinger@chromium.org,verwaest@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:3956
LOG=N

Review URL: https://codereview.chromium.org/1185343005

Cr-Commit-Position: refs/heads/master@{#29122}
2015-06-18 17:17:07 +00:00
conradw
407657b706 Revert of [strong] Implement strong mode restrictions on property access (patchset id:460001 of https://codereview.chromium.org/1168093002/)
Reason for revert:
Speculative revert, maybe breaks GC-stress

http://build.chromium.org/p/client.v8/builders/V8%20Linux64%20GC%20Stress%20-%20custom%20snapshot/builds/808

Original issue's description:
> [strong] Implement strong mode restrictions on property access
>
> Implements the strong mode proposal's restrictions on property access.
>
> To be fully explored in a followup: proxies, interceptors, access checks, load from super
>
> BUG=v8:3956
> LOG=N
>
> Committed: https://crrev.com/85dbfb9a389e7b21bd2a63862202ee97fc5d7982
> Cr-Commit-Position: refs/heads/master@{#29109}

TBR=rossberg@chromium.org,mvstanton@chromium.org,mstarzinger@chromium.org,verwaest@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:3956

Review URL: https://codereview.chromium.org/1189153002

Cr-Commit-Position: refs/heads/master@{#29115}
2015-06-18 13:40:20 +00:00
conradw
85dbfb9a38 [strong] Implement strong mode restrictions on property access
Implements the strong mode proposal's restrictions on property access.

To be fully explored in a followup: proxies, interceptors, access checks, load from super

BUG=v8:3956
LOG=N

Review URL: https://codereview.chromium.org/1168093002

Cr-Commit-Position: refs/heads/master@{#29109}
2015-06-18 11:55:45 +00:00
yangguo
63f4c75162 Serializer: support all alignment kinds.
We use an alignment prefix for unusual alignment kinds (not kWordAligned).
This will cause new objects to be aligned in ReadObject, and back references
to be aligned to skip padding.

The motivation to change the undefined next sentinel in WeakCell is this:
When the deserializer aligns an object, it requires filler maps to already
exist to create filler objects as padding. However, deserializing the
filler map leads to deserializing NaN, which as heap number is aligned:
filler map > meta map > weak cell cache > undefined > NaN
If we use the-hole instead of undefined as sentinel, it works.

R=jochen@chromium.org,bbudge@chromium.org
BUG=v8:4178
LOG=N

Committed: https://crrev.com/2146ab75387d47eef6582bd8c2d0cfc6c42b68b6
Cr-Commit-Position: refs/heads/master@{#29044}

Review URL: https://codereview.chromium.org/1179873003

Cr-Commit-Position: refs/heads/master@{#29047}
2015-06-16 11:04:23 +00:00
machenbach
33ae0e6762 Revert of Serializer: support all alignment kinds. (patchset id:40001 of https://codereview.chromium.org/1179873003/)
Reason for revert:
[Sheriff] Breaks arm debug compile:
http://build.chromium.org/p/client.v8/builders/V8%20Arm%20-%20debug%20builder/builds/4308

Original issue's description:
> Serializer: support all alignment kinds.
>
> We use an alignment prefix for unusual alignment kinds (not kWordAligned).
> This will cause new objects to be aligned in ReadObject, and back references
> to be aligned to skip padding.
>
> The motivation to change the undefined next sentinel in WeakCell is this:
> When the deserializer aligns an object, it requires filler maps to already
> exist to create filler objects as padding. However, deserializing the
> filler map leads to deserializing NaN, which as heap number is aligned:
> filler map > meta map > weak cell cache > undefined > NaN
> If we use the-hole instead of undefined as sentinel, it works.
>
> R=jochen@chromium.org,bbudge@chromium.org
> BUG=v8:4178
> LOG=N
>
> Committed: https://crrev.com/2146ab75387d47eef6582bd8c2d0cfc6c42b68b6
> Cr-Commit-Position: refs/heads/master@{#29044}

TBR=jochen@chromium.org,bbudge@chromium.org,yangguo@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:4178

Review URL: https://codereview.chromium.org/1173253006

Cr-Commit-Position: refs/heads/master@{#29045}
2015-06-16 10:18:44 +00:00
yangguo
2146ab7538 Serializer: support all alignment kinds.
We use an alignment prefix for unusual alignment kinds (not kWordAligned).
This will cause new objects to be aligned in ReadObject, and back references
to be aligned to skip padding.

The motivation to change the undefined next sentinel in WeakCell is this:
When the deserializer aligns an object, it requires filler maps to already
exist to create filler objects as padding. However, deserializing the
filler map leads to deserializing NaN, which as heap number is aligned:
filler map > meta map > weak cell cache > undefined > NaN
If we use the-hole instead of undefined as sentinel, it works.

R=jochen@chromium.org,bbudge@chromium.org
BUG=v8:4178
LOG=N

Review URL: https://codereview.chromium.org/1179873003

Cr-Commit-Position: refs/heads/master@{#29044}
2015-06-16 09:46:12 +00:00
conradw
dd85444951 [strong] Refactor ObjectStrength into a replacement for strong boolean args
Boolean "is_strong" parameters have begun to proliferate across areas where
strong mode semantics are different. This CL repurposes the existing
ObjectStrength enum as a replacement for them.

BUG=v8:3956
LOG=N

Review URL: https://codereview.chromium.org/1144183004

Cr-Commit-Position: refs/heads/master@{#28839}
2015-06-08 12:18:15 +00:00
erikcorry
4f5337a2b6 Cosmetic changes to tests to make it easier to concatenate them.
When compiling on a laptop I like to concatenate the small test files.
This makes a big difference to compile times. These changes make that
easier.

R=ulan@chromium.org
BUG=

Review URL: https://codereview.chromium.org/1163803002

Cr-Commit-Position: refs/heads/master@{#28742}
2015-06-01 22:47:08 +00:00
mvstanton
3a1d7335cf Make KeyedStores from a sloppy arguments array use a handler.
This finishes up work begun by CL (https://codereview.chromium.org/546683003/) some months ago.

BUG=

Review URL: https://codereview.chromium.org/1149053004

Cr-Commit-Position: refs/heads/master@{#28683}
2015-05-28 14:56:15 +00:00
mvstanton
323ced9e27 Now that vector ics are established for load, keyed load and call ics, let's remove dead code behind the flag.
BUG=

Review URL: https://codereview.chromium.org/1129853002

Cr-Commit-Position: refs/heads/master@{#28422}
2015-05-15 13:25:22 +00:00
mvstanton
3bce9c3afb New hydrogen instruction to reduce cost of growing an array on keyed stores.
HMaybeGrowElements moves the situation where you actually have to grow
into deferred code. This means crankshaft doesn't have to spill registers
just to make the bounds comparison to see if it'll need to grow or not.

It makes the growing case a bit more expensive, but reduces the cost of
the general case.

BUG=chromium:484025
LOG=N

Review URL: https://codereview.chromium.org/1124443004

Cr-Commit-Position: refs/heads/master@{#28359}
2015-05-12 08:47:16 +00:00
mvstanton
7798548a8f Optimize the typeof operator.
typeof was implemented as a runtime function. Calling it in
optimized code with a non-constant input becomes burdensome.

BUG=

Review URL: https://codereview.chromium.org/1114563003

Cr-Commit-Position: refs/heads/master@{#28260}
2015-05-06 13:31:13 +00:00
mvstanton
9d0d7ec730 GrowArrayElementsStub must save caller doubles for double ElementsKind.
BUG=
R=danno@chromium.org

Review URL: https://codereview.chromium.org/1124653004

Cr-Commit-Position: refs/heads/master@{#28232}
2015-05-05 14:44:08 +00:00
mvstanton
fb8e613638 Use a stub in crankshaft for grow store arrays.
We were deopting without learning anything.

This is a rebase/reland of https://codereview.chromium.org/368263003

BUG=v8:3417
LOG=N

Review URL: https://codereview.chromium.org/1109333003

Cr-Commit-Position: refs/heads/master@{#28163}
2015-04-30 12:34:10 +00:00
conradw
dea0d9b59e [strong] Disallow implicit conversions for add
Implements the strong mode proposal's restrictions on implicit conversions
for the binary + operator. Test suite is also cleaned up/refactored to allow
easier testing of the comparison operators in the future.

BUG=v8:3956
LOG=N

Review URL: https://codereview.chromium.org/1109223004

Cr-Commit-Position: refs/heads/master@{#28159}
2015-04-30 11:46:08 +00:00
dcarney
1d2be2af40 Reland: track global accesses to constant types
R=verwaest@chromium.org
BUG=468620
LOG=N

Review URL: https://codereview.chromium.org/1102543002

Cr-Commit-Position: refs/heads/master@{#28081}
2015-04-27 14:00:51 +00:00
jochen
3383f6280e Reland "Remove the weak list of views from array buffers"
Original description:
> Instead, views have to check their array buffer for whether
> it's neutered or not.
>
> BUG=v8:3996
> R=hpayer@chromium.org,dslomov@chromium.org,verwaest@chromium.org
> LOG=n

BUG=v8:3996
R=hpayer@chromium.org,dslomov@chromium.org,verwaest@chromium.org
LOG=n

Review URL: https://codereview.chromium.org/1107843002

Cr-Commit-Position: refs/heads/master@{#28060}
2015-04-27 09:27:53 +00:00
mvstanton
caeb9004f0 Don't MISS if you read the hole from certain FastHoley arrays.
If the array's map is the initial FastHoley array map, and the array prototype
chain is undisturbed and empty of elements, then keyed loads can convert the
load of a hole to undefined.

BUG=

Review URL: https://codereview.chromium.org/1100083002

Cr-Commit-Position: refs/heads/master@{#28056}
2015-04-27 08:46:38 +00:00
jochen
41098dbb07 Revert of Reland "Remove the weak list of views from array buffers" (patchset id:20001 of https://codereview.chromium.org/1093183004/)
Reason for revert:
still working on perf

Original issue's description:
> Reland "Remove the weak list of views from array buffers"
>
> Original description:
> > Instead, views have to check their array buffer for whether
> > it's neutered or not.
> >
> > BUG=v8:3996
> > R=hpayer@chromium.org,dslomov@chromium.org,verwaest@chromium.org
> > LOG=n
>
> BUG=v8:3996
> R=hpayer@chromium.org,dslomov@chromium.org,verwaest@chromium.org
> LOG=n
>
> Committed: https://crrev.com/655b04637e9da2749f53c866bca8f5f6abb05a3f
> Cr-Commit-Position: refs/heads/master@{#28029}

TBR=dslomov@chromium.org,hpayer@chromium.org,verwaest@chromium.org,dcarney@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:3996

Review URL: https://codereview.chromium.org/1053203007

Cr-Commit-Position: refs/heads/master@{#28038}
2015-04-24 06:46:23 +00:00
jochen
655b04637e Reland "Remove the weak list of views from array buffers"
Original description:
> Instead, views have to check their array buffer for whether
> it's neutered or not.
>
> BUG=v8:3996
> R=hpayer@chromium.org,dslomov@chromium.org,verwaest@chromium.org
> LOG=n

BUG=v8:3996
R=hpayer@chromium.org,dslomov@chromium.org,verwaest@chromium.org
LOG=n

Review URL: https://codereview.chromium.org/1093183004

Cr-Commit-Position: refs/heads/master@{#28029}
2015-04-23 13:02:36 +00:00
machenbach
9974348674 Revert of track global accesses to constant types (patchset id:280001 of https://codereview.chromium.org/1062163005/)
Reason for revert:
[Sheriff] Speculative revert for maybe breaking layout tests, e.g.
http://build.chromium.org/p/client.v8/builders/V8-Blink%20Linux%2032/builds/2589

Will reland if it doesn't help.

Original issue's description:
> track global accesses to constant types
>
> BUG=

TBR=verwaest@chromium.org,dcarney@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=

Review URL: https://codereview.chromium.org/1094313003

Cr-Commit-Position: refs/heads/master@{#27982}
2015-04-21 18:02:59 +00:00
dcarney
7bcc3d1083 track global accesses to constant types
BUG=

Review URL: https://codereview.chromium.org/1062163005

Cr-Commit-Position: refs/heads/master@{#27966}
2015-04-21 13:36:58 +00:00
mvstanton
e0844a24d3 Remove unnecessary options from HTailCallThroughMegamorphicCache
These options were added for a hydrogen code stub version of
the VectorIC dispatcher, which was discontinued.

R=verwaest@chromium.org
BUG=

Review URL: https://codereview.chromium.org/1081883002

Cr-Commit-Position: refs/heads/master@{#27793}
2015-04-13 16:23:23 +00:00
mstarzinger
7421c7f598 Remove dangerous constructor from CompilationInfoWithZone.
This removes the stub-based constructor from CompilationInfoWithZone
as this class is more than a pure convenience class and only by chance
doesn't have an effect in the destructor.

R=titzer@chromium.org

Review URL: https://codereview.chromium.org/1026513004

Cr-Commit-Position: refs/heads/master@{#27376}
2015-03-23 17:30:45 +00:00
verwaest
8c0d289772 Disinherit PropertyCell from Cell
BUG=

Review URL: https://codereview.chromium.org/1015983003

Cr-Commit-Position: refs/heads/master@{#27274}
2015-03-18 12:54:17 +00:00
verwaest
16c8485a35 Remove PropertyCell space
Replaces StoreGlobalCell / LoadGlobalCell with NamedField variants that use write barriers.
BUG=

Review URL: https://codereview.chromium.org/1016803002

Cr-Commit-Position: refs/heads/master@{#27269}
2015-03-18 11:43:58 +00:00
dcarney
d3fb7bf809 correctly invalidate global cells
additionally, remove unnecessary deopts when transitioning to global accessor properties from data properties

R=verwaest@chromium.org

BUG=

Review URL: https://codereview.chromium.org/996133002

Cr-Commit-Position: refs/heads/master@{#27239}
2015-03-17 13:27:41 +00:00
mvstanton
34a1a76ddf Use platform specific stubs for vector-based Load/KeyedLoad.
A hydrogen code stub is not the best approach because it builds a frame
and doesn't have the technology to discard roots at tail call exits.
Platform-specific stubs provide much better performance at this point.

R=verwaest@chromium.org

BUG=

Review URL: https://codereview.chromium.org/988653003

Cr-Commit-Position: refs/heads/master@{#27235}
2015-03-17 11:28:21 +00:00
svenpanne
6e4e43b652 Massage the CodeStub class hierarchy a bit.
Several tiny changes for the upcoming TurboFan-genrated handlers/stubs:

   * Relaxed the type of code_stub().

   * Made GetCodeKind() public, it effectly was like this, anyway.

   * Const-corrected GetStubType().

Review URL: https://codereview.chromium.org/915583002

Cr-Commit-Position: refs/heads/master@{#26542}
2015-02-10 11:46:04 +00:00
loislo
2491a639bf Externalize deoptimization reasons.
1) The hardcoded strings were converted into DeoptReason enum.

2) Deopt comment were converted into a pair location and deopt reason entries so
the deopt reason tracking mode would less affect the size of the RelocInfo table and heap.

3) DeoptReason entry in RelocInfo reuses kCommentTag value and generates short entry in RelocInfo table.

BUG=452067
LOG=n

Committed: https://crrev.com/c49820e45b57f128a98690940875c049f612dde6
Cr-Commit-Position: refs/heads/master@{#26434}

Committed: https://crrev.com/ec42e002da03adb2db968dd5b7453341ddc59a5c
Cr-Commit-Position: refs/heads/master@{#26448}

Review URL: https://codereview.chromium.org/874323003

Cr-Commit-Position: refs/heads/master@{#26463}
2015-02-05 14:51:58 +00:00
bmeurer
368a503cc1 Revert of Externalize deoptimization reasons. (patchset id:120001 of https://codereview.chromium.org/874323003/)
Reason for revert:
This CL breaks RelocInfo::INTERNAL_REFERENCE (and maybe others that come after DEOPT_REASON), which is currently (mostly) unused on tip-of-tree, but will be used for jump tables soon(ish) and should therefore work. It seems to be a problem with implicitly assumptions about the number of reloc info modes. Needs further investigation.

Original issue's description:
> Externalize deoptimization reasons.
>
> 1) The hardcoded strings were converted into DeoptReason enum.
>
> 2) Deopt comment were converted into a pair location and deopt reason entries so
> the deopt reason tracking mode would less affect the size of the RelocInfo table and heap.
>
> 3) DeoptReason entry in RelocInfo reuses kCommentTag value and generates short entry in RelocInfo table.
>
> BUG=452067
> LOG=n
>
> Committed: https://crrev.com/c49820e45b57f128a98690940875c049f612dde6
> Cr-Commit-Position: refs/heads/master@{#26434}
>
> Committed: https://crrev.com/ec42e002da03adb2db968dd5b7453341ddc59a5c
> Cr-Commit-Position: refs/heads/master@{#26448}

TBR=alph@chromium.org,mstarzinger@chromium.org,svenpanne@chromium.org,yurys@chromium.org,loislo@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=452067

Review URL: https://codereview.chromium.org/900223002

Cr-Commit-Position: refs/heads/master@{#26457}
2015-02-05 12:03:26 +00:00
Benedikt Meurer
634b0f20f4 Remove the obsolete OverwriteMode optimization.
R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/900193002

Cr-Commit-Position: refs/heads/master@{#26454}
2015-02-05 10:39:28 +00:00
loislo
ec42e002da Externalize deoptimization reasons.
1) The hardcoded strings were converted into DeoptReason enum.

2) Deopt comment were converted into a pair location and deopt reason entries so
the deopt reason tracking mode would less affect the size of the RelocInfo table and heap.

3) DeoptReason entry in RelocInfo reuses kCommentTag value and generates short entry in RelocInfo table.

BUG=452067
LOG=n

Committed: https://crrev.com/c49820e45b57f128a98690940875c049f612dde6
Cr-Commit-Position: refs/heads/master@{#26434}

Review URL: https://codereview.chromium.org/874323003

Cr-Commit-Position: refs/heads/master@{#26448}
2015-02-05 06:25:18 +00:00
loislo
bfc5d83bd0 Revert of Externalize deoptimization reasons. (patchset id:100001 of https://codereview.chromium.org/874323003/)
Reason for revert:
it broke the build

Original issue's description:
> Externalize deoptimization reasons.
>
> 1) The hardcoded strings were converted into DeoptReason enum.
>
> 2) Deopt comment were converted into a pair location and deopt reason entries so
> the deopt reason tracking mode would less affect the size of the RelocInfo table and heap.
>
> 3) DeoptReason entry in RelocInfo reuses kCommentTag value and generates short entry in RelocInfo table.
>
> BUG=452067
> LOG=n
>
> Committed: https://crrev.com/c49820e45b57f128a98690940875c049f612dde6
> Cr-Commit-Position: refs/heads/master@{#26434}

TBR=alph@chromium.org,mstarzinger@chromium.org,svenpanne@chromium.org,yurys@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=452067

Review URL: https://codereview.chromium.org/892843007

Cr-Commit-Position: refs/heads/master@{#26435}
2015-02-04 16:48:34 +00:00
loislo
c49820e45b Externalize deoptimization reasons.
1) The hardcoded strings were converted into DeoptReason enum.

2) Deopt comment were converted into a pair location and deopt reason entries so
the deopt reason tracking mode would less affect the size of the RelocInfo table and heap.

3) DeoptReason entry in RelocInfo reuses kCommentTag value and generates short entry in RelocInfo table.

BUG=452067
LOG=n

Review URL: https://codereview.chromium.org/874323003

Cr-Commit-Position: refs/heads/master@{#26434}
2015-02-04 16:35:30 +00:00
mvstanton
6fc97a1965 Retry "Use a WeakCell in the CallIC type vector."
The first try failed because I needed to make a better distinction
between clearing ICs according to policy at GC time or unconditional
clearing (say, via %ClearFunctionTypeFeedback).

It was also blocked by an issue in super constructor calls.
This fix (https://codereview.chromium.org/892113002/) needs to land
before checking in this CL.

R=ulan@chromium.org

Review URL: https://codereview.chromium.org/866493003

Cr-Commit-Position: refs/heads/master@{#26420}
2015-02-04 09:46:22 +00:00
marja
c7851da4ae Introduce LanguageMode, drop StrictMode.
This enables adding more language modes in the future.

For maximum flexibility, LanguageMode is a bitmask, so we're not restricted to
use a sequence of language modes which are progressively stricter, but we can
express the language mode as combination of features.

For now, LanguageMode can only be "sloppy" or "strict", and there are
STATIC_ASSERTS in places which need to change when more modes are added.

LanguageMode is a bit like the old LanguageMode when "extended" mode was still
around (see https://codereview.chromium.org/8417035 and
https://codereview.chromium.org/181543002 ) except that it's transmitted through
all the layers (there's no StrictModeFlag).

BUG=

Review URL: https://codereview.chromium.org/894683003

Cr-Commit-Position: refs/heads/master@{#26419}
2015-02-04 09:34:26 +00:00