This removes the weird COMPARE and COMPARE_STRONG JavaScript builtins
and replaces them with a proper C++ implementation in Object::Compare
and appropriate wrappers Object::LessThan, Object::GreaterThan, and
friends that are intended to be used by a true/false returning CompareIC
in the future, as well as the interpreter. As a short-term solution we
provide %Compare and %Compare_Strong entry points for the current
CompareIC that return the appropriate integer values expected by
fullcodegen currently.
Now the Abstract Relational Comparison is also using the correct
ToPrimitive implementation, which properly supports @@toPrimitive.
BUG=v8:4307
LOG=n
Review URL: https://codereview.chromium.org/1350113002
Cr-Commit-Position: refs/heads/master@{#30816}
Defines and uses a kMaxSafeInteger macro (which expands to the constant
2^53-1) instead of accessing Number.MAX_SAFE_INTEGER. This saves loading
the attribute from the Number object, which is slightly faster. This also
makes it clearer from reading the code that tha value being compared is
constant.
BUG=
LOG=N
Review URL: https://codereview.chromium.org/1353953002
Cr-Commit-Position: refs/heads/master@{#30814}
Uncomment the if (!serializer_enabled()) check which I accidentially left
commented out after debugging during the CLs development.
BUG=chromium:532969
R=bmeurer@chromium.org
LOG=n
Review URL: https://codereview.chromium.org/1351943002
Cr-Commit-Position: refs/heads/master@{#30811}
Port 54bab695f5
Original commit message:
Move the implementation of the Abstract Equality Comparison to the
runtime and thereby remove the EQUALS dispatcher builtin. Also remove
the various runtime entry points that were only used to support the
EQUALS builtin.
Now the Abstract Equality Comparison is also using the correct
ToPrimitive implementation, which properly supports @@toPrimitive.
R=bmeurer@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com, dstence@us.ibm.com
BUG=v8:4307
LOG=n
Review URL: https://codereview.chromium.org/1357493002
Cr-Commit-Position: refs/heads/master@{#30810}
Port a3d6f6cce3
Original commit message:
Implement the String constructor completely as native builtin,
avoiding the need to do gymnastics in JavaScript builtin to
properly detect the no argument case (which is different from
the undefined argument case) and also allowing to just
tailcall through to ToString or SymbolDescriptiveString for
the common case. Also the JavaScript builtin was misleading
since the case for construct call was unused, but could be
triggered in a wrong way once we support tail calls from
constructor functions.
This refactoring allows us to properly implement subclassing
for String builtins, once we have the correct initial_map on
derived classes (it's merely a matter of using NewTarget
instead of the target register now).
This introduces a new %SymbolDescriptiveString runtime
entry, which is also used by Symbol.toString() now.
R=bmeurer@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com, dstence@us.ibm.com
BUG=
Review URL: https://codereview.chromium.org/1354663002
Cr-Commit-Position: refs/heads/master@{#30809}
Currently Execution::Call (and friends) still duplicate a lot of the
Call sequence logic that should be encapsulated in the Call and
CallFunction builtins. So the plan now is to switch Execution::Call
to accept any Callable and just pass that through to the Call builtin.
CQ_INCLUDE_TRYBOTS=tryserver.v8:v8_linux_nosnap_dbg
R=jarin@chromium.org
BUG=v8:4413
LOG=n
Committed: https://crrev.com/359645f48156e15f235e9a9ede7910e0bcd9ae45
Cr-Commit-Position: refs/heads/master@{#30791}
Review URL: https://codereview.chromium.org/1353723002
Cr-Commit-Position: refs/heads/master@{#30808}
Typed arrays from the snapshot start out in the young space but they
all seem to end up in the old space sooner or later anyway. Let's
expedite that by allocating them in the old space right away.
Review URL: https://codereview.chromium.org/1347263003
Cr-Commit-Position: refs/heads/master@{#30804}
Now run-tests.py understands "suite/foo/bar" with forward slashes for
command-line test selection on all test suites on all platforms.
Previously, file-based suites like mjsunit also accepted "mjsunit/foo\bar";
that behavior is sacrificed here in favor of unification. For the cctest
suite, OTOH, it wasn't possible on Windows to select specific tests at all.
Original review: https://codereview.chromium.org/1348653003/
This reverts commit 5f44a91059.
NOTRY=true
Review URL: https://codereview.chromium.org/1356613002
Cr-Commit-Position: refs/heads/master@{#30798}
The core bottleneck lies in N-square cost of array union. Depending on the size
of the arrays involved it makes sense to rely on a hash-set/table for the lookup.
LOG=N
BUG=v8:2904
Review URL: https://codereview.chromium.org/1316213008
Cr-Commit-Position: refs/heads/master@{#30797}
This reverts commit 7a0a0b8b85.
- The number of parallel tasks is still 1, i.e., we only compact on the main
thread.
- Remove emergency memory (PagedSpace, and CodeRange)
- Introduce partial compaction of pages.
- Logic for multiple tasks is in place.
BUG=chromium:524425
LOG=N
Review URL: https://codereview.chromium.org/1356533002
Cr-Commit-Position: refs/heads/master@{#30796}
Reason for revert:
mozilla tests are failing on Windows
Original issue's description:
> [test] Fix cctest path separators on Windows
>
> Now run-tests.py understands "suite/foo/bar" with forward slashes for
> command-line test selection on all test suites on all platforms.
>
> Previously, file-based suites like mjsunit also accepted "mjsunit/foo\bar";
> that behavior is sacrificed here in favor of unification. For the cctest
> suite, OTOH, it wasn't possible on Windows to select specific tests at all.
>
> Committed: https://crrev.com/b36cfdb39ae648b49a1396c4f669df9b1f57996c
> Cr-Commit-Position: refs/heads/master@{#30794}
TBR=machenbach@google.com,machenbach@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
Review URL: https://codereview.chromium.org/1349163002
Cr-Commit-Position: refs/heads/master@{#30795}
Now run-tests.py understands "suite/foo/bar" with forward slashes for
command-line test selection on all test suites on all platforms.
Previously, file-based suites like mjsunit also accepted "mjsunit/foo\bar";
that behavior is sacrificed here in favor of unification. For the cctest
suite, OTOH, it wasn't possible on Windows to select specific tests at all.
Review URL: https://codereview.chromium.org/1348653003
Cr-Commit-Position: refs/heads/master@{#30794}
Currently Execution::Call (and friends) still duplicate a lot of the
Call sequence logic that should be encapsulated in the Call and
CallFunction builtins. So the plan now is to switch Execution::Call
to accept any Callable and just pass that through to the Call builtin.
CQ_INCLUDE_TRYBOTS=tryserver.v8:v8_linux_nosnap_dbg
R=jarin@chromium.org
BUG=v8:4413
LOG=n
Review URL: https://codereview.chromium.org/1353723002
Cr-Commit-Position: refs/heads/master@{#30791}
- The number of parallel tasks is still 1, i.e., we only compact on the main
thread.
- Remove emergency memory (PagedSpace, and CodeRange)
- Introduce partial compaction of pages.
- Logic for multiple tasks is in place.
BUG=chromium:524425
LOG=N
Review URL: https://codereview.chromium.org/1343333002
Cr-Commit-Position: refs/heads/master@{#30787}
Avoiding unnecessarily traversing conflicts when doing weight
comparisons. This reduced compile time regressions from a few
multiples to under 10% - at least for zlib.
Review URL: https://codereview.chromium.org/1346263004
Cr-Commit-Position: refs/heads/master@{#30783}
port 1e00bb57a2 (r30737).
original commit message:
(reason for revert/reland: patch incorrectly left --vector-stores flag
on, helpfully revealing some gcstress issues to look at, but they
don't need to block this CL).
Some pretty hacky code was used to carry out the tail-call
handler dispatch on ia32 vector stores due to a lack
of free registers. It really tanks performance. A better
approach is to use a virtual register on the isolate.
BUG=
Review URL: https://codereview.chromium.org/1344383002
Cr-Commit-Position: refs/heads/master@{#30781}
port 54bab695f5 (r30747).
original commit message:
Move the implementation of the Abstract Equality Comparison to the
runtime and thereby remove the EQUALS dispatcher builtin. Also remove
the various runtime entry points that were only used to support the
EQUALS builtin.
Now the Abstract Equality Comparison is also using the correct
ToPrimitive implementation, which properly supports @@toPrimitive.
BUG=
Review URL: https://codereview.chromium.org/1349623002
Cr-Commit-Position: refs/heads/master@{#30780}
Add an assertion that allocated_bytes >= 0 in IncrementalMark::Step and then
make it pass. We were not being diligent in maintaining top_on_previous_step_
and as a result inaccurate, and even negative values of allocated_bytes were
being reported to Step.
BUG=
R=hpayer@chromium.org
Review URL: https://codereview.chromium.org/1274453002
Cr-Commit-Position: refs/heads/master@{#30778}
Upon collection of the stack trace if the current PC falls into
the frame building code, the top frame might be in a non-consistent
state. That leads to some of the frames could be missing from the
stack trace.
The patch makes it check instructions under current PC and if they
look like the frame setup/destroy code, it skips the entire sample.
Support for x86/x64
BUG=chromium:529931
LOG=N
Review URL: https://codereview.chromium.org/1341413002
Cr-Commit-Position: refs/heads/master@{#30777}
This is a performance bug, not a functional bug: we were
losing grouping opportunities.
BUG=
Review URL: https://codereview.chromium.org/1342243003
Cr-Commit-Position: refs/heads/master@{#30776}
Some cleanup of ParsePropertyDefinition --- Replaces certain hacks with
more structured, clean code, and adds additional comments to aid in
comprehension of this tricky area of the ambiguous recursive descent
parser.
BUG=v8:3583
LOG=N
R=adamk, aperez, wingo, rossberg
Review URL: https://codereview.chromium.org/1348773004
Cr-Commit-Position: refs/heads/master@{#30775}
We already disallowed observing the global proxy; now we also
disallow any observation of access-checked objects (regardless
of whether the access check would succeed or fail, since there's
not a good way to tell the embedder what kind of access is being
requested).
Also disallow Object.getNotifier for the same reasons.
BUG=chromium:531891
LOG=y
Review URL: https://codereview.chromium.org/1346813002
Cr-Commit-Position: refs/heads/master@{#30774}
This adds a utils object meant specifically for V8 extras, presenting a limited
API surface for doing things that would otherwise require %-functions.
BUG=v8:4276
LOG=Y
R=jochen@chromium.org,yangguo@chromium.org
Review URL: https://codereview.chromium.org/1343113003
Cr-Commit-Position: refs/heads/master@{#30773}
Defines a new --harmony-tolength flag, and a ToLengthFlagged() runtime function,
that is used where ES6 requires ToLength(), but a pre-ES6 conversion existed
before. When the flag is disabled, the function uses TO_UINT32(), which is
the pre-ES6 behaviour. When the flag enabled, the ES6-compliant ToLength()
conversion is used.
Based on a patch initially from Diego Pino <dpino@igalia.com>
BUG=v8:3087
LOG=Y
Review URL: https://codereview.chromium.org/1309243003
Cr-Commit-Position: refs/heads/master@{#30772}
Add support for `get` and `set` as shorthand properties. Also
supports them for CoverInitializedName in BindingPatterns and (once implemented)
AssignmentPatterns.
BUG=v8:4412, v8:3584
LOG=N
R=adamk, aperez, wingo, rossberg
Review URL: https://codereview.chromium.org/1328083002
Cr-Commit-Position: refs/heads/master@{#30769}
