Implements the strong mode proposal's restrictions on implicit conversions
for the binary >, >=, <, and <= operators.
BUG=v8:3956
LOG=N
Review URL: https://codereview.chromium.org/1130283002
Cr-Commit-Position: refs/heads/master@{#28370}
Note that this is just a duplication for now. We'll want to get rid of the
NodeProperties::ReplaceWithValue() method in the long run.
R=bmeurer@chromium.org
BUG=
Review URL: https://codereview.chromium.org/1135483004
Cr-Commit-Position: refs/heads/master@{#28363}
If there had been no debug listener v8::Debug::GetDebugContext would have created new context and wouln't have kept reference to it. This way we may well end up with several debug contexts and disabled debugger.
As a side effect this change allows to efficiently distinguish debug context from blink contexts by simply comparing handles.
BUG=chromium:482290
LOG=Y
Review URL: https://codereview.chromium.org/1136733002
Cr-Commit-Position: refs/heads/master@{#28356}
The idea is to make this the model for future TypedArray methods.
A possible downside could be lower array method performance
if everything gets polymorhpic (but if enough inlining happens, it
should still be fast), but on the upside, this change means that
the TypedArray methods won't create as much code size bloat.
BUG=v8:3578
LOG=Y
R=adamk@chromium.orgCC=arv@chromium.org, caitpotter88@gmail.com
Review URL: https://codereview.chromium.org/1133503003
Cr-Commit-Position: refs/heads/master@{#28351}
This patch:
- Refactors Parser::ParseVariableDeclarations
- Introduces Parser::PatternMatcher class
- Implements matching a single variable pattern
- Implements rudimentary matching against object literal pattern
as a proof of concept
R=arv@chromium.org,rossberg@chromium.org
BUG=v8:811
LOG=N
Review URL: https://codereview.chromium.org/1130623004
Cr-Commit-Position: refs/heads/master@{#28345}
Make the parser handle references to "this" as unresolved variables, so the
same logic as for the rest of function parameters is used for the receiver.
Minor additions to the code generation handle copying the receiver to the
context, along with the rest of the function parameters.
Based on work by Adrian Perez de Castro <aperez@igalia.com>.
This is a reapplication of https://codereview.chromium.org/1130733003.
R=rossberg@chromium.org
BUG=v8:2700
LOG=N
Review URL: https://codereview.chromium.org/1136073002
Cr-Commit-Position: refs/heads/master@{#28340}
This stub will be used as the basis of a Math.floor-specific CallIC to
detect and track calls to floor that return -0.
Along the way:
- Create a TurboFanCodeStub super class from which the StringLength and
MathRound TF stubs derive.
- Fix the ugly hack that passes the first stub parameter as the "this"
pointer in the the TF-compiled JS function.
- Fix bugs in the ia32/x64 disassembler.
Review URL: https://codereview.chromium.org/1137703002
Cr-Commit-Position: refs/heads/master@{#28339}
For the moment, we only pass the global object (the one we are setting up).
A few smaller changes were necessary to avoid failures in
test-object-observe/DontLeakContextOnObserve. Otherwise the global object
would be retained by being context allocated, leading to test failure.
R=jkummerow@chromium.org
Review URL: https://codereview.chromium.org/1132513003
Cr-Commit-Position: refs/heads/master@{#28331}
Select sbfx for ((x << k) >> k) in ARM64 instruction selector, and similarly
for ubfx. This is a more generic version of the previous sxtb/h selector.
BUG=
Review URL: https://codereview.chromium.org/1135543002
Cr-Commit-Position: refs/heads/master@{#28318}
Exposed to the extras as extrasExports (on the builtins object), on
which they can put things that should be accessible from C++. Exposed
to C++ through the V8 API as v8::Context::GetExtrasExportsObject().
Adding a test (in test-api.cc) required adding a simple extra,
test-extra.js, which we build into the standalone builds.
R=yangguo@chromium.org, jochen@chromium.org
BUG=
Review URL: https://codereview.chromium.org/1128113006
Cr-Commit-Position: refs/heads/master@{#28317}
While the mutator is active, the idle time handler optimizes for latency by doing only incremental steps and scavenges.
When the mutator becomes inactive, the idle time handler forces few incremental GCs to reclaim memory and then stops until mutator is active again.
BUG=460090
LOG=N
Review URL: https://codereview.chromium.org/1105293004
Cr-Commit-Position: refs/heads/master@{#28300}
This introduces V8.MemoryHeapCommitted and V8.MemoryHeapUsed histograms.
In contrast to the existing memory histograms, the new histograms are uniform in time, i.e. their samples happen at regular time intervals. The --histogram-interval specifies the length of the interval.
We implement this by linearly interpolating memory stats between GC and idle notification events.
BUG=chromium:485472
LOG=NO
Review URL: https://codereview.chromium.org/1125683004
Cr-Commit-Position: refs/heads/master@{#28292}
Reason for revert:
The reason for reverting is: [Sheriff] Need to fix compilation after this revert:
5cab6be83a
Original issue's description:
> Remove Scope::scope_uses_this_ flag
>
> Use of the "this" variable is now tracked using scopes, like any other variable.
>
> R=arv@chromium.org
> LOG=N
> BUG=
>
> Committed: https://crrev.com/afba55965118d9ba57e53c729f52be2340e626e0
> Cr-Commit-Position: refs/heads/master@{#28268}
TBR=arv@chromium.org,wingo@igalia.com
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=
Review URL: https://codereview.chromium.org/1131713004
Cr-Commit-Position: refs/heads/master@{#28285}
Reason for revert:
[Sheriff] Breaks jetstream benchmark with errors like this:
>>> Running suite: JetStream/bigfib.cpp
>>> Stdout (#1):
undefined:93: ReferenceError: this is not defined
this['Module'] = Module;
^
ReferenceError: this is not defined
at eval (eval at __run (runner.js:13:3), <anonymous>:93:3)
at eval (native)
at __run (runner.js:13:3)
at Object.runSimpleBenchmark (runner.js:44:31)
at runner.js:97:13
Original issue's description:
> Resolve references to "this" the same way as normal variables
>
> Make the parser handle references to "this" as unresolved variables, so the
> same logic as for the rest of function parameters is used for the receiver.
> Minor additions to the code generation handle copying the receiver to the
> context, along with the rest of the function parameters.
>
> Based on work by Adrian Perez de Castro <aperez@igalia.com>.
>
> BUG=v8:2700
> LOG=N
>
> Committed: https://crrev.com/06a792b7cc2db33ffce7244c044a9c05afbb6116
> Cr-Commit-Position: refs/heads/master@{#28263}
TBR=rossberg@chromium.org,arv@chromium.org,wingo@igalia.com
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:2700
Review URL: https://codereview.chromium.org/1129723003
Cr-Commit-Position: refs/heads/master@{#28283}
