Cleanup CHECK_EQ order and simplify CHECK_EQ(true/false).
Cleanup callorder for negative numbers
Cleanup callorder order for capital letter constants.
Cleanup callorder for test.x checks.
BUG=
Review-Url: https://codereview.chromium.org/2677183002
Cr-Commit-Position: refs/heads/master@{#42997}
TypeFeedbackVectors are strongly rooted by a closure. However, in modern
JavaScript closures are created and abandoned more freely. An important
closure may not be present in the root-set at time of garbage collection,
even though we've cached optimized code and use it regularly. For
example, consider leaf functions in an event dispatching system. They may
well be "hot," but tragically non-present when we collect the heap.
Until now, we've relied on a weak root to cache the feedback vector in
this case. Since there is no way to signal intent or relative importance,
this weak root is as susceptible to clearing as any other weak root at
garbage collection time.
Meanwhile, the feedback vector has become more important. All of our
ICs store their data there. Literal and regex boilerplates are stored there.
If we lose the vector, then we not only lose optimized code built from
it, we also lose the very feedback which allowed us to create that optimized
code. Therefore it's vital to express that dependency through the root
set.
This CL does this by creating a strong link to a feedback
vector at the instantiation site of the function closure.
This instantiation site is in the code and feedback vector
of the outer closure.
BUG=v8:5456
Review-Url: https://codereview.chromium.org/2674593003
Cr-Commit-Position: refs/heads/master@{#42953}
They have the same lifetime. It's a match!
Both structures are native context dependent and dealt with (creation,
clearing, gathering feedback) at the same time. By treating the spaces used
for literal boilerplates as feedback vector slots, we no longer have to keep
track of the materialized literal count elsewhere.
A follow-on CL removes even more parser infrastructure related to this count.
BUG=v8:5456
Review-Url: https://codereview.chromium.org/2655853010
Cr-Commit-Position: refs/heads/master@{#42771}
- kDebugPromiseCreated(task, parent_task)
This event occurs when promise is created (PromiseHookType::Init). V8Debugger uses this event to maintain task -> parent task map.
- kDebugEnqueueAsyncFunction(task)
This event occurs when first internal promise for async function is created. V8Debugger collects stack trace at this point.
- kDebugEnqueuePromiseResolve(task),
This event occurs when Promise fulfills with resolved status. V8Debugger collects stack trace at this point.
- kDebugEnqueuePromiseReject(task),
This event occurs when Promise fulfills with rejected status. V8Debugger collects stack trace at this point.
- kDebugPromiseCollected,
This event occurs when Promise is collected and no other chained callbacks can be added. V8Debugger removes information about async task for this promise.
- kDebugWillHandle,
This event occurs when chained promise function (either resolve or reject handler) is called. V8Debugger installs parent promise's stack (based on task -> parent_task map) as current if available or current promise's scheduled stack otherwise.
- kDebugDidHandle,
This event occurs after chained promise function has finished. V8Debugger restores asynchronous call chain to previous one.
With this change all instrumentation calls are related to current promise (before WillHandle and DidHandle were related to next async task).
Before V8Debugger supported only the following:
- asyncTaskScheduled(task1)
- asyncTaskStarted(task1)
- asyncTaskFinished(task1)
Now V8Debugger supports the following:
- asyncTaskScheduled(parent_task)
..
- asyncTaskCreated(task, parent_task),
- asyncTaskStarted(task), uses parent_task scheduled stack
- asyncTaskScheduled(task)
- asyncTaskFinished(task)
Additionally: WillHandle and DidHandle were migrated to PromiseHook API.
More details: https://docs.google.com/document/d/1u19N45f1gSF7M39mGsycJEK3IPyJgIXCBnWyiPeuJFE
BUG=v8:5738
R=dgozman@chromium.org,gsathya@chromium.org,yangguo@chromium.org
Review-Url: https://codereview.chromium.org/2650803003
Cr-Commit-Position: refs/heads/master@{#42644}
Before, in `var p1 = p.then(() => {}) we would trigger the
before/after callbacks with p as the associated promise, but we must
call it with p1.
Also removes promise from PromiseReactionJobInfo.
Review-Url: https://codereview.chromium.org/2633443002
Cr-Commit-Position: refs/heads/master@{#42295}
Reason for revert:
Blocks roll, ASan detects leaking ExternalStrings.
Original issue's description:
> Internalize strings in-place (reland^2)
>
> using newly introduced ThinStrings, which store a pointer to the actual,
> internalized string they represent.
>
> BUG=v8:4520
>
> (Previously landed as #42168 / af51befe69)
> (Previously landed as #42193 / 4c699e349a)
>
> Review-Url: https://codereview.chromium.org/2549773002
> Cr-Commit-Position: refs/heads/master@{#42235}
> Committed: ec45e6ed2eTBR=ishell@chromium.org,hpayer@chromium.org,bmeurer@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:4520
Review-Url: https://codereview.chromium.org/2626893005
Cr-Commit-Position: refs/heads/master@{#42271}
using newly introduced ThinStrings, which store a pointer to the actual,
internalized string they represent.
BUG=v8:4520
(Previously landed as #42168 / af51befe69)
(Previously landed as #42193 / 4c699e349a)
Review-Url: https://codereview.chromium.org/2549773002
Cr-Commit-Position: refs/heads/master@{#42235}
Reason for revert:
blocks roll, see: https://codereview.chromium.org/2628733002/
Debug mode runs into an Abort("External string expected, but not found").
Original issue's description:
> Internalize strings in-place (reland)
>
> using newly introduced ThinStrings, which store a pointer to the actual,
> internalized string they represent.
>
> BUG=v8:4520
>
> (Previously landed as #42168 / af51befe69.
>
> Review-Url: https://codereview.chromium.org/2549773002
> Cr-Commit-Position: refs/heads/master@{#42193}
> Committed: 4c699e349aTBR=ishell@chromium.org,hpayer@chromium.org,bmeurer@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:4520
Review-Url: https://codereview.chromium.org/2625073002
Cr-Commit-Position: refs/heads/master@{#42212}
using newly introduced ThinStrings, which store a pointer to the actual,
internalized string they represent.
BUG=v8:4520
(Previously landed as #42168 / af51befe69.
Review-Url: https://codereview.chromium.org/2549773002
Cr-Commit-Position: refs/heads/master@{#42193}
using newly introduced ThinStrings, which store a pointer to the actual,
internalized string they represent.
BUG=v8:4520
Review-Url: https://codereview.chromium.org/2549773002
Cr-Commit-Position: refs/heads/master@{#42168}
The original TF port didn't maintain the same semantics as the CS/runtime implementation, and in fact introduced a bug that grew capacity too slowly on
32-bit platforms.
R=ishell@chromium.org
LOG=N
Review-Url: https://codereview.chromium.org/2617393002
Cr-Commit-Position: refs/heads/master@{#42155}
Also moves most of the runtime function into TF. There are lots of
runtime calls but they happen only for the debug case so it's fine.
BUG=v8:5343
Review-Url: https://codereview.chromium.org/2611083002
Cr-Commit-Position: refs/heads/master@{#42109}
This removes all the promise allocation related methods from the CSA
and moves them PromiseBuiltinsAssembler with some edits.
BUG=v8:5343
Review-Url: https://codereview.chromium.org/2604273003
Cr-Commit-Position: refs/heads/master@{#42070}
-- Removes remaning debug from promise.js and moves it to c++
-- Changes debug_id to be a smi in PromiseReactionJobInfo and
PromiseResolveThenableJobInfo.
-- Changes debug_name to be a smi in PromiseReactionJobInfo and
PromiseResolveThenableJobInfo.
-- Adds PromiseDebugActionName and PromiseDebugActionType enums
-- Adds PromiseDebugActionNameToString and
PromiseDebugActionTypeToString helper methods
-- Changes variable `status` to be int in runtime functions.
-- Changes debug_id to start from 1, not 0 for easier bookkeeping.
BUG=v8:5343
Review-Url: https://codereview.chromium.org/2606093002
Cr-Commit-Position: refs/heads/master@{#42052}
- Adds CodeAssembler::ConstructJS() to simplify calling JS functions as
constructors, used by NewPromiseCapability()
- Defines PromiseCapability as a special JSObject subclass, with a
non-exensible Map, and read-only non-configurable DataDescriptors which
point to its in-object fields. This allows its fields to be used by JS
builtins until there is no longer any need.
Currently, the performance benefit comes from
https://codereview.chromium.org/2567033003/, but does not appear to
regress performance in any significant way.
BUG=v8:5343
TBR=ulan@chromium.org
Review-Url: https://codereview.chromium.org/2567333002
Cr-Commit-Position: refs/heads/master@{#42014}
This patch stores the promise, resolve, reject properties of the
deferred object created by CreateInternalPromiseCapability and
NewPromiseCapability directly on the promise (if the promise hasn't
been fulfilled), otherwise they are stored on the
PromiseReactionJobInfo.
This patch removes the currently unused
CreateInternalPromiseCapability and inlines the call to create the
deferred promise object.
NewPromiseCapability is the only function that works with a deferred.
This patch results in a 8.5% improvement in benchmarks over 5 runs.
BUG=v8:5343
Review-Url: https://codereview.chromium.org/2590563003
Cr-Commit-Position: refs/heads/master@{#41991}
Currently, to find out a Promise's status and result, one has to use the
debug context. This is for example done in Node.js. This new API is a
better replacement, also in the context of the debug context being
deprecated eventually.
R=franzih@chromium.org, gsathya@chromium.org, jochen@chromium.org
BUG=v8:5764
Review-Url: https://codereview.chromium.org/2589113002
Cr-Commit-Position: refs/heads/master@{#41855}
This adds kInit, kResolve, kBefore and kAfter lifecycle hooks to promises.
This also exposes an API to set the PromiseHook.
BUG=v8:4643
Review-Url: https://codereview.chromium.org/2575313002
Cr-Commit-Position: refs/heads/master@{#41775}
This will be used in CSA to check if any promisehook is set.
-- Adds a is_promisehook_enabled_ field to the isolate and helper methods.
-- Adds this field to the ExternalReference table.
-- Adds a helper method to access this from CSA
Note -- this patch doesn't actually add the ability to attach the hook
yet.
BUG=v8:4643
Review-Url: https://codereview.chromium.org/2566483002
Cr-Commit-Position: refs/heads/master@{#41607}
The flag must be used only by CodeStubAssemblerGraphsCorrectness cctest for now
and once all the verification issues are fixed the flag will be enabled in debug
mode by default.
This CL also relaxes some checks for code stub graphs and fixes some issues in the stubs.
BUG=
Review-Url: https://codereview.chromium.org/2558653002
Cr-Commit-Position: refs/heads/master@{#41547}
The flag must be used only by CodeStubAssemblerGraphsCorrectness cctest for now
and once all the verification issues are fixed the flag will be enabled in debug
mode by default.
BUG=
Review-Url: https://codereview.chromium.org/2551933002
Cr-Commit-Position: refs/heads/master@{#41531}
The changes are:
1) Pass lambdas as const references to avoid unnecessary copying.
2) Remove CodeStubAssembler* parameter from loop bodies and let the lambdas
capture the right assembler instead. It makes the loop body code look
uniform with the surrounding code and unblocks splitting of a CSA
into different classes.
BUG=
Review-Url: https://codereview.chromium.org/2535753012
Cr-Commit-Position: refs/heads/master@{#41482}
Improves performance in simple, single element case by 5% and in multiple
elements cases by 2%.
BUG=chromium:608675
LOG=N
Review-Url: https://codereview.chromium.org/2497243002
Cr-Commit-Position: refs/heads/master@{#41368}
The new AccessorAssembler encapsulates all the functionality that's
specific to building LoadIC/StoreIC stubs.
There are two header files (accessor-assembler.h and
accessor-assembler-impl.h) so that clients of the assembler can include
the one, and subclassing assemblers can include the other.
Review-Url: https://codereview.chromium.org/2507733002
Cr-Commit-Position: refs/heads/master@{#41037}
This is in preparation for introducing more specialized
CodeStubAssembler subclasses. The state object can be handed
around, while the Assembler instances are temporary-scoped.
BUG=v8:5628
Original review: https://codereview.chromium.org/2498073002/
Review-Url: https://codereview.chromium.org/2502293002
Cr-Commit-Position: refs/heads/master@{#41028}
Reason for revert:
https://build.chromium.org/p/client.v8/builders/V8%20Linux%20-%20shared doesn't want to compile. Missing export annotation?
Original issue's description:
> [refactoring] Split CodeAssemblerState out of CodeAssembler
>
> This is in preparation for introducing more specialized
> CodeStubAssembler subclasses. The state object can be handed
> around, while the Assembler instances are temporary-scoped.
>
> BUG=v8:5628
TBR=ishell@chromium.org,mstarzinger@chromium.org,jkummerow@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:5628
Review-Url: https://codereview.chromium.org/2504913002
Cr-Commit-Position: refs/heads/master@{#41018}
