This is so that a NotSuperConstructor error is thrown before evaluating the
arguments to the super constructor. Besides updating the runtime function, a
new bytecode GetSuperConstructor is introduced.
BUG=v8:5336
Review-Url: https://codereview.chromium.org/2504553003
Cr-Commit-Position: refs/heads/master@{#41788}
When an octal escape sequence is in a string in strict mode:
- Octal literals are not allowed in strict mode.
+ Octal escape sequences are not allowed in strict mode.
When an octal escape sequence is in a template string:
- Octal literals are not allowed in template strings.
+ Octal escape sequences are not allowed in template strings.
BUG=v8:4973
CQ_INCLUDE_TRYBOTS=master.tryserver.blink:linux_trusty_blink_rel
Review-Url: https://codereview.chromium.org/2551633002
Cr-Commit-Position: refs/heads/master@{#41560}
This enables {FLAG_debug_code} by default in debug builds. The advantage
is that generated code contained within the snapshot will contain such
debug code. Before we would only get coverage for these pieces with the
no-snapshot builds, which have a meager coverage. One can still pass the
inverse --no-debug-code flag to ensure generated code remains readable
within debug builds as well.
R=machenbach@chromium.org
Review-Url: https://codereview.chromium.org/2528913002
Cr-Commit-Position: refs/heads/master@{#41451}
The old algorithm produces unnecessary decimal digits. The new one
converts the significand of the input double into an uint64_t to be
just as precise as necessary.
R=tebbi@chromium.org
BUG=chromium:658712,chromium:666376
Review-Url: https://codereview.chromium.org/2520363002
Cr-Commit-Position: refs/heads/master@{#41255}
It originates from the era where we used to run a separate preparse step
before parsing and store the function data. Now the usage of preparser
is something completely different, so this flag doesn't make sense any
more.
In addition, this way we get more test coverage for preparser (for small
scripts).
BUG=
Review-Url: https://codereview.chromium.org/2513563002
Cr-Commit-Position: refs/heads/master@{#41110}
With this change, WebAssembly.Memory objects have backing stores allocated as an
8GB region where everything beyond the size of the Wasm heap is inaccessible.
GrowMemory is now implemented by changing the protection on the guard regions to
make the new portions of the heap accessible.
Guard pages are not enabled by default, but this change adds a flag and a test
variant to make sure we get test coverage on them.
BUG= https://bugs.chromium.org/p/v8/issues/detail?id=5277
Review-Url: https://codereview.chromium.org/2396433008
Cr-Commit-Position: refs/heads/master@{#41089}
Reason for revert:
With fixes for frozen RegExps in https://codereview.chromium.org/2339443002 , it should be web-compatible to put RegExps in strict mode again, per spec.
Original issue's description:
> Revert of Put RegExp js code in strict mode (patchset #2 id:20001 of https://codereview.chromium.org/1776883005/ )
>
> Reason for revert:
> Found to break SAP Web IDE, and these semantics are not shipped in any other browser.
> Revert to legacy semantics while assessing web compatibility.
>
> BUG=chromium:624318
>
> Original issue's description:
> > Put RegExp js code in strict mode
> >
> > src/js/regexp.js was one of the few files that was left in sloppy
> > mode. The ES2017 draft specification requires that writes to
> > lastIndex throw when the property is non-writable, and test262
> > tests enforce this behavior. This patch puts that file in strict
> > mode.
> >
> > BUG=v8:4504
> > R=yangguo@chromium.org
> > LOG=Y
> >
> > Committed: https://crrev.com/80b1b2a45bbd9bf3d08e4e6516acfaaa8f438213
> > Cr-Commit-Position: refs/heads/master@{#34801}
>
> TBR=yangguo@chromium.org,adamk@chromium.org
>
> Committed: https://crrev.com/34880eb3dcf7492d44c0a3b45b6c888189f2c3c3
> Cr-Commit-Position: refs/heads/master@{#37449}
TBR=adamk@chromium.org,yangguo@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=chromium:624318
Review-Url: https://codereview.chromium.org/2344773002
Cr-Commit-Position: refs/heads/master@{#39456}
This removes test/webkit/fast/js/stack-overflow-arrity-catch.js, which tests that the stack overflows in a very particular way. It doesn't seem to test anything important, and only used to work because we didn't inline into try-blocks.
BUG=
R=jarin
Review-Url: https://codereview.chromium.org/2216353002
Cr-Commit-Position: refs/heads/master@{#38976}
For holey/growing keyed stores, we need to check that there are no
setters in the prototype chain and protect against changes to that
via code dependencies.
R=verwaest@chromium.org
BUG=v8:5275,v8:5276
Review-Url: https://codereview.chromium.org/2231683002
Cr-Commit-Position: refs/heads/master@{#38514}
This adds the possibility to address test cases in the
status file with the variant under which the test is running.
This is only allowed in top-level sections.
Example:
[{
'test-case': [PASS, SLOW],
}]
['variant == foo', {
'test-case': [FAIL],
}]
The test case "test-case" is marked as slow in all variants.
Additionally, in variant foo, it'll be expected to fail.
This CL also exemplifies the new feature with test cases
running under the ignition_turbofan variant. The
corresponding legacy flag is deprecated.
BUG=v8:5238
Review-Url: https://codereview.chromium.org/2203013002
Cr-Commit-Position: refs/heads/master@{#38342}
The flag was introduced for ignition development. It can only
be used when running ignition tests in isolation on the bots.
The bots only use ignition_turbo in isolation since a while
and don't pass the --ignition flag anymore.
BUG=v8:5238
Review-Url: https://codereview.chromium.org/2197123002
Cr-Commit-Position: refs/heads/master@{#38206}
See discussion in https://codereview.chromium.org/2156303002/#msg8
With the new --harmony-function-tostring behavior, these tests would
fail without this change. This change makes the tests pass regardless
of whether or not --harmony-function-tostring is used.
All of these changes are simply inserting a space after the "function"
keyword to match the current function toString behavior. When
--harmony-function-tostring is enabled, the toString behavior matches
the spacing used in the function declaration. With the declaration
matching the current formatting, the toString behavior becomes
unaffected by --harmony-function-tostring.
BUG=v8:4958
LOG=n
Review-Url: https://codereview.chromium.org/2161413002
Cr-Commit-Position: refs/heads/master@{#37959}
When the scanner finds a '-->', it's either part of an HTMLCloseComment
or a '--' followed by a '>'. Previously, only a preceding newline would
make it an HTMLCloseComment. Now, a preceding multiline comment also
makes it an HTMLCloseComment. The effect is that now the following is
not a SyntaxError:
x/*
*/-->this is now a comment
BUG=v8:5142
LOG=y
Review-Url: https://codereview.chromium.org/2119763003
Cr-Commit-Position: refs/heads/master@{#37656}
Reason for revert:
Found to break SAP Web IDE, and these semantics are not shipped in any other browser.
Revert to legacy semantics while assessing web compatibility.
BUG=chromium:624318
Original issue's description:
> Put RegExp js code in strict mode
>
> src/js/regexp.js was one of the few files that was left in sloppy
> mode. The ES2017 draft specification requires that writes to
> lastIndex throw when the property is non-writable, and test262
> tests enforce this behavior. This patch puts that file in strict
> mode.
>
> BUG=v8:4504
> R=yangguo@chromium.org
> LOG=Y
>
> Committed: https://crrev.com/80b1b2a45bbd9bf3d08e4e6516acfaaa8f438213
> Cr-Commit-Position: refs/heads/master@{#34801}
TBR=yangguo@chromium.org,adamk@chromium.org
Review-Url: https://codereview.chromium.org/2112713003
Cr-Commit-Position: refs/heads/master@{#37449}
Async functions are built out of generators, but the
SharedFunctionInfo returns false for is_generator. is_resumable is
the broader query. This patch fixes many parts of V8 to refer
to is_resumable as appropriate.
One incidental change is to remove a check for generators extending
classes. This is part of a general check for constructors being the
only thing which can extend classes, so it is removed here and the
error message for the general case is made more accurate.
BUG=v8:4483
Review-Url: https://codereview.chromium.org/1996943002
Cr-Commit-Position: refs/heads/master@{#36621}
We now have data that 0.011% of websites use the pattern
for (var i = 0 in j) { ... }
This pattern was banned by ES2015, with the idea to revisit if
it presents a web compatibility problem. Informally, after
the May 2016 TC39 meeting, the new data was discussed, and there
was interest in reversing the decision. Although the specification
is not yet updated, it seems likely to come soon.
This patch turns off the flag which bans that construct, reenabling
it. The change should prevent websites from breaking.
BUG=v8:4942
Review-Url: https://codereview.chromium.org/2011223003
Cr-Commit-Position: refs/heads/master@{#36562}
The previous approach taken by FastNew[Sloppy,Strict,Rest]ArgumentsStub
looked at the function slot in order to skip stub frames
and find the JS frame. However, stub frames do not have a
function slot (in fact their fixed frame ends one slot
before the JS frame's function slot). Therefore, if this
location in the stub frame happens to have the function
object the create arguments stubs won't skip this frame
correctly.
Replace this approach with one where the stub is
specialized to either skip a frame if required (since
there will only ever be one extra frame on Ignition
the loop approach isn't necessary).
BUG=v8:4928
LOG=N
CQ_INCLUDE_TRYBOTS=tryserver.v8:v8_linux_nosnap_dbg
Review-Url: https://codereview.chromium.org/1949023003
Cr-Commit-Position: refs/heads/master@{#36181}
This adds ignition to the testing variants that are run on all
bots.
Failing tests can only be skipped with the NO_IGNITION
keyword in status files. Existing expectations for the
ignition_turbofan variant are all duplicated and use the
NO_IGNITION keyword as well now.
BUG=v8:4280
LOG=N
Committed: https://crrev.com/132c09ed619f23fb7c6d26a4e3552c703389eabd
Cr-Commit-Position: refs/heads/master@{#35865}
Review-Url: https://codereview.chromium.org/1804003002
Cr-Commit-Position: refs/heads/master@{#35926}
This prepares for pulling chromium's build as dependency for
gn. After this, the files in build and gypfiles need to stay
in sync until chromium is updated.
BUG=chromium:474921
LOG=n
Review-Url: https://codereview.chromium.org/1848553003
Cr-Commit-Position: refs/heads/master@{#35898}
Reason for revert:
Will resubmit with proper fix and more test skips.
Original issue's description:
> [Ignition] Test ignition on all bots.
>
> This adds ignition to the testing variants that are run on all
> bots.
>
> Failing tests can only be skipped with the NO_IGNITION
> keyword in status files. Existing expectations for the
> ignition_turbofan variant are all duplicated and use the
> NO_IGNITION keyword as well now.
>
> BUG=v8:4280
> LOG=N
> NOTRY=true
TBR=rmcilroy@chromium.org,mstarzinger@chromium.org,yangguo@chromium.org,mythria@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:4280
Review-Url: https://codereview.chromium.org/1930943002
Cr-Commit-Position: refs/heads/master@{#35871}
This adds ignition to the testing variants that are run on all
bots.
Failing tests can only be skipped with the NO_IGNITION
keyword in status files. Existing expectations for the
ignition_turbofan variant are all duplicated and use the
NO_IGNITION keyword as well now.
BUG=v8:4280
LOG=N
NOTRY=true
Review-Url: https://codereview.chromium.org/1804003002
Cr-Commit-Position: refs/heads/master@{#35865}
This adds a new ignition_turbofan testing variant that'll
allow switching turbofan off in the other ignition variant.
The switch will happen in a follow up after reconfiguring
the bots.
BUG=v8:4280
LOG=N
Review URL: https://codereview.chromium.org/1922623003
Cr-Commit-Position: refs/heads/master@{#35790}
- RegExp.prototype.toString() doesn't have any special handling of
RegExp instances and simply calls the source and flags getters
- Use the original values of global and sticky, rather than based
on the current flag getters, as specified in
https://github.com/tc39/ecma262/pull/494R=yangguo@chromium.org,adamk
LOG=Y
BUG=v8:4602
Review URL: https://codereview.chromium.org/1846303002
Cr-Commit-Position: refs/heads/master@{#35225}
Reason for revert:
TC39 decided that this compatibility fix should be standardized.
Original issue's description:
> Remove RegExp.prototype.source getter compat workaround
>
> The getter RegExp.prototype.source is specified in ES2015 to throw when
> called on a non-RegExp instance, such as RegExp.prototype. We had previously
> put in a compatibility workaround for all RegExp getters to make them
> throw on access specifically with RegExp.prototype as the receiver; however,
> we only have evidence that this is needed for properties other than source.
> This patch removes the compatibility workaround for get RegExp.prototype.source
> and gives it semantics precisely as per the ES2015 specification.
>
> R=adamk
> BUG=chromium:581577,v8:4827
> LOG=Y
>
> Committed: https://crrev.com/80803aa89e31839b8f73959776fa7e1923c6b461
> Cr-Commit-Position: refs/heads/master@{#35086}
R=adamk@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=chromium:581577,v8:4827
LOG=Y
Review URL: https://codereview.chromium.org/1847783003
Cr-Commit-Position: refs/heads/master@{#35180}
The getter RegExp.prototype.source is specified in ES2015 to throw when
called on a non-RegExp instance, such as RegExp.prototype. We had previously
put in a compatibility workaround for all RegExp getters to make them
throw on access specifically with RegExp.prototype as the receiver; however,
we only have evidence that this is needed for properties other than source.
This patch removes the compatibility workaround for get RegExp.prototype.source
and gives it semantics precisely as per the ES2015 specification.
R=adamk
BUG=chromium:581577,v8:4827
LOG=Y
Review URL: https://codereview.chromium.org/1837843002
Cr-Commit-Position: refs/heads/master@{#35086}
Now that ES2015 const has shipped, in Chrome 49, legacy const declarations
are no more. This lets us remove a bunch of code from many parts of the
codebase.
In this patch, I remove parser support for generating legacy const variables
from const declarations. This also removes the special "illegal declaration"
bit from Scope, which has ripples into all compiler backends.
Also gone are any tests which relied on legacy const declarations.
Note that we do still generate a Variable in mode CONST_LEGACY in one case:
function name bindings in sloppy mode. The likely fix there is to add a new
Variable::Kind for this case and handle it appropriately for stores in each
backend, but I leave that for a later patch to make this one completely
subtractive.
Review URL: https://codereview.chromium.org/1819123002
Cr-Commit-Position: refs/heads/master@{#35002}
Fixes CopyBytecodeArray to set the interrupt_budget field.
BUG=v8:4280,v8:4690
LOG=N
Review URL: https://codereview.chromium.org/1809123003
Cr-Commit-Position: refs/heads/master@{#34982}
This rebaselines all our internal tests for error messages thrown by the
implementation of 'instanceof' to the new ES6 semantics. It also applies
a minor rephrasing to the messages in question.
R=rossberg@chromium.org
BUG=v8:4447
LOG=n
Review URL: https://codereview.chromium.org/1822663002
Cr-Commit-Position: refs/heads/master@{#34940}
It was never being set to false in production (though it was in test-parsing.cc,
due to that test having its own flag-setting logic).
Review URL: https://codereview.chromium.org/1815033002
Cr-Commit-Position: refs/heads/master@{#34878}
Function declarations were previously permitted by V8 in many locations
which no ECMAScript specification allowed; the ECMAScript 2015 spec
enumerates a few locations (in blocks, as well as after labels and in
conditionals when in sloppy mode). This patch ships the flag to restrict
the usage of function declarations to those contexts.
R=adamk
LOG=Y
BUG=v8:4824
CQ_INCLUDE_TRYBOTS=tryserver.chromium.linux:linux_chromium_rel_ng;tryserver.blink:linux_blink_rel
Review URL: https://codereview.chromium.org/1799233003
Cr-Commit-Position: refs/heads/master@{#34828}
src/js/regexp.js was one of the few files that was left in sloppy
mode. The ES2017 draft specification requires that writes to
lastIndex throw when the property is non-writable, and test262
tests enforce this behavior. This patch puts that file in strict
mode.
BUG=v8:4504
R=yangguo@chromium.org
LOG=Y
Review URL: https://codereview.chromium.org/1776883005
Cr-Commit-Position: refs/heads/master@{#34801}
test262 "negative" test expectations list which exception is thrown. The ES2017
draft specification is very specific about which exception class is thrown
from which path, and V8 works hard to be correct with respect to that spec.
Previously, the test262 test runner would accept any nonzero status code,
such as from a crash, or a FAIL printed out, for a negative test. This
patch makes negative tests check for the right answer using a quick-and-dirty
parsing of the exception printing from d8 to find the exception class.
It invokes d8 in a way to get a status code of 0 from thrown exceptions
so that 'negative' tests aren't actually implemented by negating the output.
Amazingly, this didn't catch any test262 failures, but I verified the extra
checking interactively by changing a negative test to expect a different type
and saw it fail.
BUG=v8:4803
R=machenbach
LOG=Y
Review URL: https://codereview.chromium.org/1766503002
Cr-Commit-Position: refs/heads/master@{#34763}
This fixes the label binding mechanism that forwards a label to another
already bound target label. For source labels that are not being reached
by a jump, we should not try to patch jump sites. We still bind the
source label to reflect the target position though, just in case this
binding method will be used for backwards branches in the future.
R=rmcilroy@chromium.org
TEST=webkit/fast/js/parser-syntax-check
Review URL: https://codereview.chromium.org/1804643002
Cr-Commit-Position: refs/heads/master@{#34759}
These flags have been on by default since version 4.9, which has been
in stable Chrome for over a week now, demonstrating that they're
here to stay.
Also moved the tests out of harmony/ and into es6/.
Review URL: https://codereview.chromium.org/1776683003
Cr-Commit-Position: refs/heads/master@{#34692}
It turns out that some old polyfill library uses
RegExp.prototype.flags as a way of feature testing. It's not clear
how widespread this is. For now, as a minimal workaround, we can
return undefined from getters like RegExp.prototype.global when
the receiver is RegExp.prototype. This patch implements that strategy
but omits a UseCounter to make backports easier.
R=adamk
CC=yangguo@chromium.org
BUG=chromium:581577
LOG=Y
CQ_INCLUDE_TRYBOTS=tryserver.chromium.linux:linux_chromium_rel_ng;tryserver.blink:linux_blink_rel
Review URL: https://codereview.chromium.org/1640803003
Cr-Commit-Position: refs/heads/master@{#34201}
A recent ES2015 semantics web compatibility fix changed a WebKit
test from a syntax error to a known failure without a syntax
error. This confused the fuzzer infrastructure. This patch updates
the test expectations to the expected output, based on what the
new semantics provide.
R=machenbach,adamk
BUG=v8:4693
LOG=N
Review URL: https://codereview.chromium.org/1628013003
Cr-Commit-Position: refs/heads/master@{#33484}
This patch moves the semantics of 'const' in sloppy mode to match those
in strict mode, that is, const makes lexical (let-like) bindings, must
have an initializer, and does not create properties of the global object.
R=adamk
LOG=Y
BUG=v8:3305
CQ_INCLUDE_TRYBOTS=tryserver.chromium.linux:linux_chromium_rel_ng;tryserver.blink:linux_blink_rel
Review URL: https://codereview.chromium.org/1571873004
Cr-Commit-Position: refs/heads/master@{#33218}
Reason for revert:
Crash fixed by https://codereview.chromium.org/1564923007
Original issue's description:
> Revert of Ship ES2015 sloppy-mode function hoisting, let, class (patchset #7 id:120001 of https://codereview.chromium.org/1551443002/ )
>
> Reason for revert:
> Causes frequent crashes in Canary: chromium:537816
>
> Original issue's description:
> > Ship ES2015 sloppy-mode function hoisting, let, class
> >
> > This patch doesn't ship all features of ES2015 variable/scoping
> > changes, notably omitting the removal of legacy const. I think
> > function hoisting, let and class in sloppy mode can stand to
> > themselves as a package, and the legacy const change is much
> > riskier and more likely to be reverted, so my intention is to
> > pursue those as a separate, follow-on patch.
> >
> > R=adamk@chromium.org
> > BUG=v8:4285,v8:3305
> > LOG=Y
> > CQ_INCLUDE_TRYBOTS=tryserver.chromium.linux:linux_chromium_rel_ng;tryserver.blink:linux_blink_rel
> >
> > Committed: https://crrev.com/fcff8588a5a01587643d6c2507c7b882c78a2957
> > Cr-Commit-Position: refs/heads/master@{#33133}
>
> TBR=adamk@chromium.org
> # Not skipping CQ checks because original CL landed more than 1 days ago.
> BUG=v8:4285,v8:3305,chromium:537816
> LOG=Y
>
> Committed: https://crrev.com/adac5956c6216056a211cfaa460a00ac1500d8f8
> Cr-Commit-Position: refs/heads/master@{#33162}
TBR=adamk@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:4285,v8:3305,chromium:537816
Review URL: https://codereview.chromium.org/1571793002
Cr-Commit-Position: refs/heads/master@{#33189}
Reason for revert:
Causes frequent crashes in Canary: chromium:537816
Original issue's description:
> Ship ES2015 sloppy-mode function hoisting, let, class
>
> This patch doesn't ship all features of ES2015 variable/scoping
> changes, notably omitting the removal of legacy const. I think
> function hoisting, let and class in sloppy mode can stand to
> themselves as a package, and the legacy const change is much
> riskier and more likely to be reverted, so my intention is to
> pursue those as a separate, follow-on patch.
>
> R=adamk@chromium.org
> BUG=v8:4285,v8:3305
> LOG=Y
> CQ_INCLUDE_TRYBOTS=tryserver.chromium.linux:linux_chromium_rel_ng;tryserver.blink:linux_blink_rel
>
> Committed: https://crrev.com/fcff8588a5a01587643d6c2507c7b882c78a2957
> Cr-Commit-Position: refs/heads/master@{#33133}
TBR=adamk@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=v8:4285,v8:3305,chromium:537816
LOG=Y
Review URL: https://codereview.chromium.org/1565263002
Cr-Commit-Position: refs/heads/master@{#33162}
This patch doesn't ship all features of ES2015 variable/scoping
changes, notably omitting the removal of legacy const. I think
function hoisting, let and class in sloppy mode can stand to
themselves as a package, and the legacy const change is much
riskier and more likely to be reverted, so my intention is to
pursue those as a separate, follow-on patch.
R=adamk@chromium.org
BUG=v8:4285,v8:3305
LOG=Y
CQ_INCLUDE_TRYBOTS=tryserver.chromium.linux:linux_chromium_rel_ng;tryserver.blink:linux_blink_rel
Review URL: https://codereview.chromium.org/1551443002
Cr-Commit-Position: refs/heads/master@{#33133}
Unexpectedly, websites depend on doing feature testing with
RegExp.prototype.sticky and browser testing with RegExp.prototype.toString().
ES2015 newly throws exceptions for both of these. In order to enable shipping
new ES2015 semantics, this patch puts in narrow workarounds for those two
cases, keeping their old behavior. UseCounters are added for how often
those particular cases come up, so we can see if it can be deprecated.
This reland replaces problematic legacy const usage with var, to
avoid issues with nosnap builds.
R=yangguo
CC=bmeurer
BUG=v8:4637,v8:4617
LOG=Y
CQ_INCLUDE_TRYBOTS=tryserver.chromium.linux:linux_chromium_rel_ng;tryserver.blink:linux_blink_rel
Review URL: https://codereview.chromium.org/1545633002
Cr-Commit-Position: refs/heads/master@{#33002}
Reason for revert:
Breaks nosnap: http://build.chromium.org/p/client.v8/builders/V8%20Linux%20-%20nosnap/builds/5883
Original issue's description:
> Add web compat workarounds for ES2015 RegExp semantics
>
> Unexpectedly, websites depend on doing feature testing with
> RegExp.prototype.sticky and browser testing with RegExp.prototype.toString().
> ES2015 newly throws exceptions for both of these. In order to enable shipping
> new ES2015 semantics, this patch puts in narrow workarounds for those two
> cases, keeping their old behavior. UseCounters are added for how often
> those particular cases come up, so we can see if it can be deprecated.
>
> R=yangguo
> BUG=v8:4637,v8:4617
> LOG=Y
> CQ_INCLUDE_TRYBOTS=tryserver.chromium.linux:linux_chromium_rel_ng;tryserver.blink:linux_blink_rel
>
> Committed: https://crrev.com/98f819c3e0c92d54a306cdacadda73cf96d21b52
> Cr-Commit-Position: refs/heads/master@{#32997}
TBR=yangguo@google.com,yangguo@chromium.org,littledan@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:4637,v8:4617
Review URL: https://codereview.chromium.org/1546493003
Cr-Commit-Position: refs/heads/master@{#32999}
Unexpectedly, websites depend on doing feature testing with
RegExp.prototype.sticky and browser testing with RegExp.prototype.toString().
ES2015 newly throws exceptions for both of these. In order to enable shipping
new ES2015 semantics, this patch puts in narrow workarounds for those two
cases, keeping their old behavior. UseCounters are added for how often
those particular cases come up, so we can see if it can be deprecated.
R=yangguo
BUG=v8:4637,v8:4617
LOG=Y
CQ_INCLUDE_TRYBOTS=tryserver.chromium.linux:linux_chromium_rel_ng;tryserver.blink:linux_blink_rel
Review URL: https://codereview.chromium.org/1543723002
Cr-Commit-Position: refs/heads/master@{#32997}
Introduce a new Apply builtin that forms a correct and optimizable
foundation for the Function.prototype.apply, Reflect.construct and
Reflect.apply builtins (which properly does the PrepareForTailCall
as required by the ES2015 spec).
The new Apply builtin avoids going to the runtime if it is safe to
just access the backing store elements of the argArray, i.e. if you
pass a JSArray with no holes, or an unmapped, unmodified sloppy or
strict arguments object.
mips/mips64 ports by Balazs Kilvady <balazs.kilvady@imgtec.com>
CQ_INCLUDE_TRYBOTS=tryserver.v8:v8_linux64_tsan_rel
BUG=v8:4413, v8:4430
LOG=n
R=yangguo@chromium.org
Committed: e4d2538911
Review URL: https://codereview.chromium.org/1523753002 .
Cr-Commit-Position: refs/heads/master@{#32929}
Reason for revert:
Breaks TSAN somewhow: http://build.chromium.org/p/client.v8/builders/V8%20Linux64%20TSAN/builds/7000
Original issue's description:
> [es6] Correct Function.prototype.apply, Reflect.construct and Reflect.apply.
>
> Introduce a new Apply builtin that forms a correct and optimizable
> foundation for the Function.prototype.apply, Reflect.construct and
> Reflect.apply builtins (which properly does the PrepareForTailCall
> as required by the ES2015 spec).
>
> The new Apply builtin avoids going to the runtime if it is safe to
> just access the backing store elements of the argArray, i.e. if you
> pass a JSArray with no holes, or an unmapped, unmodified sloppy or
> strict arguments object.
>
> mips/mips64 ports by Balazs Kilvady <balazs.kilvady@imgtec.com>
>
> CQ_INCLUDE_TRYBOTS=tryserver.chromium.linux:linux_chromium_rel_ng;tryserver.blink:linux_blink_rel
> BUG=v8:4413, v8:4430
> LOG=n
> R=yangguo@chromium.org
>
> Committed: e4d2538911TBR=yangguo@chromium.org,paul.lind@imgtec.com
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:4413, v8:4430
Review URL: https://codereview.chromium.org/1533803002 .
Cr-Commit-Position: refs/heads/master@{#32928}
Introduce a new Apply builtin that forms a correct and optimizable
foundation for the Function.prototype.apply, Reflect.construct and
Reflect.apply builtins (which properly does the PrepareForTailCall
as required by the ES2015 spec).
The new Apply builtin avoids going to the runtime if it is safe to
just access the backing store elements of the argArray, i.e. if you
pass a JSArray with no holes, or an unmapped, unmodified sloppy or
strict arguments object.
mips/mips64 ports by Balazs Kilvady <balazs.kilvady@imgtec.com>
CQ_INCLUDE_TRYBOTS=tryserver.chromium.linux:linux_chromium_rel_ng;tryserver.blink:linux_blink_rel
BUG=v8:4413, v8:4430
LOG=n
R=yangguo@chromium.org
Review URL: https://codereview.chromium.org/1523753002 .
Cr-Commit-Position: refs/heads/master@{#32927}
When the reviver returns undefined, the property in question must be deleted
even for arrays. So far this only happened for non-array objects.
Also change the property enumeration to be spec-conformant, which is observable when the reviver modifies its "this" object directly. There are a few further issues that need to be addressed in a separate CL.
R=yangguo@chromium.org
BUG=
Review URL: https://codereview.chromium.org/1506933003
Cr-Commit-Position: refs/heads/master@{#32750}
This hackily disambiguates multiple calls for the iterator protocols in ForOf / Yield* by adding -2 / -1 to the pos.
BUG=v8:3953
LOG=y
Review URL: https://codereview.chromium.org/1491923003
Cr-Commit-Position: refs/heads/master@{#32527}
ES6 section 12.2.8.1 states that flags for regular expression literals
must be checked during parsing and invalid flags are early errors. This
change adapts the Scanner and (Pre)Parser to act according to the spec.
This is also a prerequisite to unify the handling of literal creation
(for Objects, Arrays, Regexps, and at some point Classes).
R=yangguo@chromium.org
Review URL: https://codereview.chromium.org/1472323002
Cr-Commit-Position: refs/heads/master@{#32273}
The boards on the bots do not have FPU, and therefore time out on
this test.
BUG=
NOTRY=true
Review URL: https://codereview.chromium.org/1411313003
Cr-Commit-Position: refs/heads/master@{#31395}
This stages the general purpose inlining mechanism in TurboFan and also
disables the remaining tests that still fail. We do this to get test
coverage early and to avoid regressing inlining as we go along.
R=bmeurer@chromium.org
BUG=v8:4493
LOG=n
Review URL: https://codereview.chromium.org/1412703002
Cr-Commit-Position: refs/heads/master@{#31386}
Section 8.10.5 9a specifies that a property descriptor cannot both have
accessors and specify the writability of the property. The previous
error message was misleading because it referred to writable rather
than specifying the writability (which includes writable: false).
BUG=v8:2536
LOG=N
Review URL: https://codereview.chromium.org/1399693003
Cr-Commit-Position: refs/heads/master@{#31273}
The main changes are:
- Fix treatment of loops, which was incorrect and sometimes resulted in
the wrong completion value.
- Get rid of unnecessary variables.
This is in preparation of implementing ES6 completion semantics.
R=rossberg
BUG=
Review URL: https://codereview.chromium.org/1362333002
Cr-Commit-Position: refs/heads/master@{#30981}
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}
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}
Replace the ADD, SUB, etc. builtins with proper runtime implementations,
and expose them as runtime calls that can be used by the code stubs and
the interpreter (for now).
Also remove all the support runtime functions for ADD, SUB and friends,
namely %NumberAdd, %NumberSub, and so on.
R=mstarzinger@chromium.org
CQ_INCLUDE_TRYBOTS=tryserver.v8:v8_linux_layout_dbg,v8_linux_nosnap_dbg
Review URL: https://codereview.chromium.org/1333843002
Cr-Commit-Position: refs/heads/master@{#30680}
The previous hack with HInstanceOfKnownGlobal was not only slower,
but also very brittle and required a lot of weird hacks to support it. And
what's even more important it wasn't even correct (because a map check
on the lhs is never enough for instanceof).
The new implementation provides a sane runtime implementation
for InstanceOf plus a fast case in the InstanceOfStub, combined with
a proper specialization in the case of a known global in CrankShaft,
which does only the prototype chain walk (coupled with a code
dependency on the known global).
As a drive-by-fix: Also fix the incorrect Object.prototype.isPrototypeOf
implementation.
BUG=v8:4376
LOG=y
Review URL: https://codereview.chromium.org/1304633002
Cr-Commit-Position: refs/heads/master@{#30342}
Second item in section 13.7.5.1 states that the error should be a
SyntaxError, when previously CheckAndRewriteReferenceExpression
would always emit a ReferenceError.
BUG=v8:4373
R=adamk, rossberg
LOG=N
CQ_INCLUDE_TRYBOTS=tryserver.chromium.linux:linux_chromium_rel_ng;tryserver.blink:linux_blink_rel
Review URL: https://codereview.chromium.org/1292393002
Cr-Commit-Position: refs/heads/master@{#30184}
This test enumerates properties on all the builtins and makes sure that
they never change. In practice, this just generates busywork when trying
to add new language features; I've never seen it catch an
accidentally-exposed bit of API.
Review URL: https://codereview.chromium.org/1275423006
Cr-Commit-Position: refs/heads/master@{#30160}
In ES6, direct eval() in sloppy mode uses the enclosing function-level
("var") scope for var-style bindings and a new lexical scope for lexical
bindings like let and class. This patch implements that feature by making
lexical bindings that are directly within an EVAL_SCOPE be on the local
scope rather than the enclosing one.
BUG=v8:4288
LOG=Y
R=adamk
Review URL: https://codereview.chromium.org/1274193004
Cr-Commit-Position: refs/heads/master@{#30120}
A sloppy mode eval call that establishes strict mode will leak that strictness
into the sloppy surrounding scope on recompile. This changes the structure
of the type feedback vector for the function and crashes follow.
The fix is straightforward.
BUG=491536, 503565
LOG=N
Review URL: https://codereview.chromium.org/1231343003
Cr-Commit-Position: refs/heads/master@{#29671}
Duplicate parameters are banned both overall in strict mode and also
in arrow functions. Our error message for both cases blamed strict
mode, which is confusing. This patch fixes the message to point to
arrow functions as a possible source as well.
R=wingo, adamk
LOG=N
Review URL: https://codereview.chromium.org/1236863008
Cr-Commit-Position: refs/heads/master@{#29662}
For now it uses a pretty slow path for accessing strings by wrapping it into a new temporary wrapper.
BUG=v8:4042, v8:3088
LOG=y
Review URL: https://codereview.chromium.org/1221303019
Cr-Commit-Position: refs/heads/master@{#29576}
Turning the --harmony-array flag on has been delayed behind
unrelated test failures. Now that those tests are disabled,
land the changes.
This patch fixes WebKit tests based on the new change.
R=adamk
LOG=Y
BUG=v8:3578
CQ_INCLUDE_TRYBOTS=tryserver.chromium.linux:linux_chromium_rel_ng;tryserver.blink:linux_blink_rel
Review URL: https://codereview.chromium.org/1199113003
Cr-Commit-Position: refs/heads/master@{#29209}
Object.setPrototypeOf() throws a TypeError if value would create a
cycle. Previously a plain Error was thrown rather than a TypeError.
BUG=v8:4197
R=mike@bocoup.com
LOG=N
Review URL: https://codereview.chromium.org/1198523002
Cr-Commit-Position: refs/heads/master@{#29169}
This reverts commit 992751d0dc.
The final spec for Object.getPrototypeOf calls ToObject on the
parameter, which means that it should only throw for null and
undefined. For other non object values the prototype of the wrapper
should be used.
Difference from last time: Updated .status and will disable Blink
side tests as needed.
BUG=v8:3964
LOG=N
R=adamk, rossberg@chromium.org
CQ_INCLUDE_TRYBOTS=tryserver.chromium.linux:linux_chromium_rel_ng;tryserver.blink:linux_blink_rel
Review URL: https://codereview.chromium.org/1051523003
Cr-Commit-Position: refs/heads/master@{#27558}
This switches full-codegen to no longer push and pop StackHandler
markers onto the operand stack, but relies on a range-based handler
table instead. We only use StackHandlers in JSEntryStubs to mark the
transition from C to JS code.
Note that this makes deoptimization and OSR from within any try-block
work out of the box, makes the non-exception paths faster and should
overall be neutral on the memory footprint (pros).
On the other hand it makes the exception paths slower and actually
throwing and exception more expensive (cons).
R=yangguo@chromium.org
TEST=cctest/test-run-jsexceptions/DeoptTry
Review URL: https://codereview.chromium.org/1010883002
Cr-Commit-Position: refs/heads/master@{#27440}
Reason for revert:
Layout test failures. Please update layout test expectations before landing this, in order to not block the roll.
Original issue's description:
> [es6] Object.getPrototypeOf should work with values
>
> The final spec for Object.getPrototypeOf calls ToObject on the
> parameter, which means that it should only throw for null and
> undefined. For other non object values the prototype of the wrapper
> should be used.
>
> BUG=v8:3964
> LOG=N
> R=adamk, rossberg@chromium.org
>
> Committed: https://crrev.com/ea463a916bbe5994b0d2d04e8075058b373b2e2c
> Cr-Commit-Position: refs/heads/master@{#27354}
TBR=adamk@chromium.org,rossberg@chromium.org,arv@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:3964
Review URL: https://codereview.chromium.org/1033623002
Cr-Commit-Position: refs/heads/master@{#27389}
The final spec for Object.getPrototypeOf calls ToObject on the
parameter, which means that it should only throw for null and
undefined. For other non object values the prototype of the wrapper
should be used.
BUG=v8:3964
LOG=N
R=adamk, rossberg@chromium.org
Review URL: https://codereview.chromium.org/1014813003
Cr-Commit-Position: refs/heads/master@{#27354}
ES6 specs the function length property (it was not part of ES5) and
it makes it configurable.
BUG=v8:3045
LOG=N
R=mstarzinger@chromium.org, adamk@chromium.org
CQ_INCLUDE_TRYBOTS=tryserver.chromium.linux:linux_chromium_rel_ng;tryserver.blink:linux_blink_rel
Review URL: https://codereview.chromium.org/993073002
Cr-Commit-Position: refs/heads/master@{#27190}
This removes the duplicate property check from object literals.
Instead we repurpose the ObjectLiteralChecker into two cases, implemented
by two subclasses to ObjectLiteralCheckerBase called ObjectLiteralChecker
and ClassLiteralChecker.
The object literal checker now only checks for duplicate __proto__ fields in
object literals.
The class literal checker checks for duplicate constructors, non constructor
fields named constructor as well as static properties named prototype.
BUG=v8:3819
LOG=Y
R=adamk, dslomov@chromium.org
Review URL: https://codereview.chromium.org/873823003
Cr-Commit-Position: refs/heads/master@{#26336}
(Debug builds have --enable-slow-asserts, and with slow asserts each
assignment to the array in the prepare function will trigger a check
over the entire array. This turns it into n^2 work, for reasonably
large n.)
BUG=
Review URL: https://codereview.chromium.org/831953003
Cr-Commit-Position: refs/heads/master@{#26006}
The test driver doesn't know at the moment if optdebug 1 or 2 has been used (the first is used on the bots, the second
locally in quickcheck). It can't know therefore if slow
asserts can be enabled or not. Trying to enable them leads
to a warning if they weren't compiled, which causes webkit
1:1 text comparison to fail.
Review URL: https://codereview.chromium.org/819033002
Cr-Commit-Position: refs/heads/master@{#25921}
When compiling with the macro DCHECK_ALWAYS_ON defined, DCHECKs and
supporting code gets compiled and enabled.
This increases test coverage for chromium release buildbots
BUG=v8:3731
R=jkummerow@chromium.org
LOG=y
Review URL: https://codereview.chromium.org/760213005
Cr-Commit-Position: refs/heads/master@{#25701}
