Lexically declared "arguments" in sloppy mode will throw redeclaration error
currently, this patch fixes it by delaying the declaration of arguments until we
fully parse parameter list and function body.
BUG=v8:4577
LOG=N
Committed: https://crrev.com/70a613dd0a5f5d205b46559b55702764464851fa
Review-Url: https://codereview.chromium.org/2290753003
Cr-Original-Commit-Position: refs/heads/master@{#39109}
Cr-Commit-Position: refs/heads/master@{#39230}
This extends TryToName by HeapNumber-to-intptr support and cached array
index retrieval from non-internalized strings, and uses it in the
KeyedLoadIC_Generic stub.
Bonus: avoid needless movsxlq on x64 in LoadFixed{,Double}ArrayElement
helpers by introducing INTPTR_PARAMETER mode.
Review-Url: https://codereview.chromium.org/2277363002
Cr-Commit-Position: refs/heads/master@{#39217}
For historical reasons, the interpreter's bytecode expectations tests
required a type for the constant pool. This had two disadvantages:
1. Strings and numbers were not visible in mixed pools, and
2. Mismatches of pool types (e.g. when rebaselining) would cause parser
errors
This removes the pool types, making everything 'mixed', but appending
the values to string and number valued constants. Specifying a pool type
in the *.golden header now prints a warning (for backwards compatibility).
BUG=v8:5350
Review-Url: https://codereview.chromium.org/2310103002
Cr-Commit-Position: refs/heads/master@{#39216}
This patch
- extracts the logic of keeping track of allocated bytes
from the actual incremental marking step.
- replaces OldSpaceStep with a check for incremental marking start.
- removes the force_marking parameter of AdvanceIncrementalMarking.
BUG=chromium:616434
LOG=NO
Review-Url: https://codereview.chromium.org/2304123003
Cr-Commit-Position: refs/heads/master@{#39213}
Use vswp to switch double-precision registers in the gap resolver, with fall
back temp register-based code if NEON is not available.
BUG=
Review-Url: https://codereview.chromium.org/2313803003
Cr-Commit-Position: refs/heads/master@{#39209}
This way we avoid the cyclic dependency between objects.h and heap.h and still
have one definition. Add a static assert that this size is indeed smaller than
the payload of a page.
Follow ups can finally remove the dependency on spaces.h for all heap.h users.
R=ulan@chromium.org,bmeurer@chromium.org,vogelheim@chromium.og
Review-Url: https://codereview.chromium.org/2311203002
Cr-Commit-Position: refs/heads/master@{#39206}
ARMv6 has the same basic barriers as ARMv7+, but they are accessed using
the CP15 coprocessor. This patch allows the assembler to select the
appropriate instruction.
This also fixes TurboFan's atomic loads and stores for ARMv6 platforms.
BUG=
Review-Url: https://codereview.chromium.org/2318553002
Cr-Commit-Position: refs/heads/master@{#39203}
ARMv8 can use vminnm and vmaxnm to handle most inputs. Other platforms
use an implementation similar to what was there before, except that
out-of-line code is used for the uncommon cases.
BUG=
Review-Url: https://codereview.chromium.org/2313863003
Cr-Commit-Position: refs/heads/master@{#39202}
Replace first page size in the snapshots with a heap logic that trims pages
after deserialization. The snapshot provided page sizes was just an
approximation, while the heap knows exactly where to trim.
Furthermore, trim the pages directly after deserialization, leaving no wiggle
room for further objects. This avoids pollution of the immortal immovable pages
with regular objects, e.g. Contexts. The downside is that we potentially require
expanding the space with a new page.
BUG=chromium:636331
Review-Url: https://codereview.chromium.org/2311963002
Cr-Commit-Position: refs/heads/master@{#39200}
These are ARMv8 instructions that will be used in a follow-up patch.
BUG=
Review-Url: https://codereview.chromium.org/2273003002
Cr-Commit-Position: refs/heads/master@{#39193}
This will allow for chaining ScopeInfos together to form the same chains
as contexts chains currently do.
BUG=v8:5215
R=mstarzinger@chromium.org,marja@chromium.org,bmeurer@chromium.org,rmcilroy@chromium.org
Review-Url: https://codereview.chromium.org/2314483002
Cr-Commit-Position: refs/heads/master@{#39192}
Reason for revert:
Performance regressions: crbug.com/644087
Clusterfuzz: crbug.com/644074
We'll reland all regexp changes at once when the port is complete and at least performance-neutral, since the partial port requires slow workarounds.
Original issue's description:
> [regexp] Port RegExp getters and setters
>
> BUG=v8:5339
>
> Committed: https://crrev.com/ac0eb5e05af40e16ae9402bb8a62600b32cc2ec9
> Committed: https://crrev.com/7711b1a16f864ed6ea56fa40274ff3f6287bbe34
> Cr-Original-Commit-Position: refs/heads/master@{#39076}
> Cr-Commit-Position: refs/heads/master@{#39088}
TBR=bmeurer@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=v8:5339
Review-Url: https://codereview.chromium.org/2313713002
Cr-Commit-Position: refs/heads/master@{#39176}
Also disable four cpu-profiler tests under asan that fail
with the GN setup.
BUG=chromium:474921,v8:5243
Review-Url: https://codereview.chromium.org/2309263002
Cr-Commit-Position: refs/heads/master@{#39171}
We used to have Array types for typed arrays in asm.js at some point,
but had to change that quite some time ago already. And Function types
were mostly used for the CallInterfaceDescriptor (and the code-stub.js
experiment), but are also unusedn nowadays.
R=mvstanton@chromium.org
BUG=v8:5267,v8:5270
Review-Url: https://codereview.chromium.org/2310923002
Cr-Commit-Position: refs/heads/master@{#39168}
Those have been effectively unused for quite a while now, and we
don't see any use in having them around. Actually it'd be way more
consistent and simpler to just use OtherInternal as type for contexts
instead.
R=mvstanton@chromium.org
BUG=v8:5267,v8:5270
Review-Url: https://codereview.chromium.org/2305383002
Cr-Commit-Position: refs/heads/master@{#39166}
Since the extension field is already used for the catch name, store a
ContextExtension there instead.
In the future, this will allow for chaining ScopeInfos together, so we
no longer need a context chain for lazy parsing / compilation.
BUG=v8:5215
R=bmeurer@chromium.org,neis@chromium.org,marja@chromium.org
Review-Url: https://codereview.chromium.org/2302013002
Cr-Commit-Position: refs/heads/master@{#39164}
There are no users of class types left inside TurboFan, so we can nuke
them and thereby simplify the type system quite a bit.
R=mvstanton@chromium.org
BUG=v8:5267,v8:5270
Review-Url: https://codereview.chromium.org/2309753002
Cr-Commit-Position: refs/heads/master@{#39152}
This makes for slightly faster rebuilds when touching parser-base.h
(which changes frequently!). Also takes care of an old TODO,
moving CompileTimeValue into its own file under ast/, where it
properly belongs.
BUG=v8:5294
Review-Url: https://codereview.chromium.org/2305883002
Cr-Commit-Position: refs/heads/master@{#39141}
Our Type class has a semantic and representational dimension.
Much code in src/ast, Crankshaft and Turbofan is based on it.
Going forward in Turbofan we'd like to remove representational information
entirely. To that end, new type AstType has been created to preserve
existing behavior for the benefit of Crankshaft and the AST.
BUG=
Review-Url: https://codereview.chromium.org/2302283002
Cr-Commit-Position: refs/heads/master@{#39135}
We introduce, similar to regular heap, a hard and a soft limit for external memory.
- Upon reaching the hard limit we do a full GC. The hard limit is a a delta from
the size of external memory at last GC.
- Upon reaching the soft limit we start incremental marking. Each further
AdjustAmountOfExternalMemory will trigger a marking step. The step size depends
on how far we are away from the hard limit. Further away means we have still
some wiggle room and the step will be small. Being closer to the hard limit
makes it more likely to trigger a full GC, so we increase the step size.
BUG=chromium:621829
Review-Url: https://codereview.chromium.org/2256853003
Cr-Commit-Position: refs/heads/master@{#39133}
With the Indexed/GenericNamedPropertyDefinerCallback it is possible to intercept Object.defineProperty() calls.
Requests that call JSReceiver::OrdinaryDefineOwnProperty() internally, also trigger the interceptor. This includes Object.freeze(), Object.preventExtensions(), and Object.seal().
As without this patch, the query interceptor triggers on
defineProperty, unless the definer callback
intercepts the request.
As without this patch, the query interceptor triggers on defineProperty, unless the definer callback intercepts the request.
BUG=
Committed: https://crrev.com/b9d985975cf3bab0ded0cec9fafd3799f9bde29a
Review-Url: https://codereview.chromium.org/2272383002
Cr-Original-Commit-Position: refs/heads/master@{#39094}
Cr-Commit-Position: refs/heads/master@{#39122}
Collect type feedback in the bytecode handler for 'new' bytecode. The
earlier cl (https://codereview.chromium.org/2153433002/) was reverted
because that implementation did not collect allocation site feedback.
This regressed delta blue by an order of magnitude. This implementation
includes collection of allocation site feedback.
Reland of https://codereview.chromium.org/2190293003/ with a bug fix.
BUG=v8:4280, v8:4780
LOG=N
Review-Url: https://codereview.chromium.org/2225923003
Cr-Commit-Position: refs/heads/master@{#39120}
Reason for revert:
Breaks layout tests:
https://build.chromium.org/p/client.v8.fyi/builders/V8-Blink%20Linux%2064/builds/9470
Original issue's description:
> Allow lexically declared "arguments" in function scope in sloppy mode.
>
> Lexically declared "arguments" in sloppy mode will throw redeclaration error
> currently, this patch fixes it by delaying the declaration of arguments until we
> fully parse parameter list and function body.
>
> BUG=v8:4577
> LOG=N
>
> Committed: https://crrev.com/70a613dd0a5f5d205b46559b55702764464851fa
> Cr-Commit-Position: refs/heads/master@{#39109}
TBR=adamk@chromium.org,mythria@chromium.org,lpy@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:4577
Review-Url: https://codereview.chromium.org/2304853002
Cr-Commit-Position: refs/heads/master@{#39115}
Lexically declared "arguments" in sloppy mode will throw redeclaration error
currently, this patch fixes it by delaying the declaration of arguments until we
fully parse parameter list and function body.
BUG=v8:4577
LOG=N
Review-Url: https://codereview.chromium.org/2290753003
Cr-Commit-Position: refs/heads/master@{#39109}
This unblocks avoiding the separate code template.
In the upcoming CL doing away with code templates, We need to track instances
through the module object, which needs to be separate from the compiled module
data, which is then shared with the first instance.
This CL ensures we have the object available in the asm.js scenario, too.
Note that this CL also unifies the error messaging when module
decoding fails.
BUG=v8:5316
Review-Url: https://codereview.chromium.org/2299873002
Cr-Commit-Position: refs/heads/master@{#39097}
Reason for revert:
Breaks cctest/test-api-interceptors/QueryInterceptor on the waterfall
Original issue's description:
> [api] Add interceptor for defineProperty().
>
> With the Indexed/GenericNamedPropertyDefinerCallback it is possible to intercept Object.defineProperty() calls.
>
> Requests that call JSReceiver::OrdinaryDefineOwnProperty() internally, also trigger the interceptor. This includes Object.freeze(), Object.preventExtensions(), and Object.seal().
>
> BUG=
>
> Committed: https://crrev.com/b9d985975cf3bab0ded0cec9fafd3799f9bde29a
> Cr-Commit-Position: refs/heads/master@{#39094}
TBR=jochen@chromium.org,franzih@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=
Review-Url: https://codereview.chromium.org/2303533004
Cr-Commit-Position: refs/heads/master@{#39095}
With the Indexed/GenericNamedPropertyDefinerCallback it is possible to intercept Object.defineProperty() calls.
Requests that call JSReceiver::OrdinaryDefineOwnProperty() internally, also trigger the interceptor. This includes Object.freeze(), Object.preventExtensions(), and Object.seal().
BUG=
Review-Url: https://codereview.chromium.org/2272383002
Cr-Commit-Position: refs/heads/master@{#39094}
Also add tests that document the behavior of the PropertyQueryCallback.
BUG=v8:5260
Review-Url: https://codereview.chromium.org/2286323002
Cr-Commit-Position: refs/heads/master@{#39090}
Rebuilding (after touching certain files) is crazy slow because
includes are out of control. Many of these files we need to rebuild are
cctests which pull in more includes than they need.
BUG=v8:5294
Review-Url: https://codereview.chromium.org/2304553002
Cr-Commit-Position: refs/heads/master@{#39080}
Now that the hole NaN is no longer represented as Float64Constant early
on, we should never see such a constant node in any JS-level graph, but
we will only see them after representation selection. Change Typer and
SimplifiedLowering appropriately (and fix the invalid tests).
R=jarin@chromium.org
BUG=v8:5267
Review-Url: https://codereview.chromium.org/2299883003
Cr-Commit-Position: refs/heads/master@{#39063}
This patch arranges that property names are parsed in a single pass,
reporting the name as well as the type of the property, instead of
parsing qualifiers like 'static' or 'get' initially as names and then
re-parsing. This change is easier to reason about, very slightly (4%)
faster in some cases (although slower in other, less common ones, though
this slowdown will be fixed in an upcoming patch), and is a prerequisite
for separating the parsing of object and class literal properties, which
will become increasingly important as ECMAScript adds more class features.
This is a reland of https://codereview.chromium.org/2278153004/,
which fixes the issue causing the revert and adds more tests.
Review-Url: https://codereview.chromium.org/2300503002
Cr-Commit-Position: refs/heads/master@{#39056}
This way, many files which only need CompilationInfo but not compiler.h
and its dependencies can include just compilation-info.h.
BUG=
Review-Url: https://codereview.chromium.org/2284313003
Cr-Commit-Position: refs/heads/master@{#39038}
When FieldType::None() returns a cast Smi::FromInt(0), which translates
as nullptr, the FieldType::IsNone() check becomes equivalent to
`this == nullptr` which is not allowed by the standard and
therefore optimized away as a false constant by GCC 6.
This has lead to crashes when invoking methods on FieldType::None().
Using a different Smi constant for FieldType::None() makes the compiler
always include a comparison against that value. The choice of these
constants has no effect as they are effectively arbitrary.
BUG=https://github.com/nodejs/node/issues/8310
Review-Url: https://codereview.chromium.org/2292953002
Cr-Commit-Position: refs/heads/master@{#39023}
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}
Drop the typing rules for the machine operators and replace them
with UNREACHABLE. These typing rules were never correct and there's
also no need to have those rules at all.
Drive-by-fix: Remove the extremely annoying test-simplified-lowering.cc
file, which is not very useful, but consumes a large amount of time to
keep it compiling and passing. Instead we should introduce appropriate
tests for the SimplifiedLowering that also test something meaningful
w/o just cementing the implementation.
R=jarin@chromium.org
BUG=v8:5267
Review-Url: https://codereview.chromium.org/2292463002
Cr-Commit-Position: refs/heads/master@{#38970}
These JavaScript operators were special hacks to ensure that we always
operate on Smis for the magic for-in index variable, but this never
really worked in the OSR case, because the OsrValue for the index
variable didn't have the proper information (that we have for the
JSForInPrepare in the non-OSR case).
Now that we have loop induction variable analysis and binary operation
hints, we can just use JSLessThan and JSAdd instead with appropriate
Smi hints, which handle the OSR case by inserting Smi checks (that are
always true). Thanks to OSR deconstruction and loop peeling these Smi
checks will be hoisted so they don't hurt the OSR case too much.
Drive-by-change: Rename the ForInDone bytecode to ForInContinue, since
we have to lower it to JSLessThan to get the loop induction variable
goodness.
R=epertoso@chromium.org
BUG=v8:5267
Review-Url: https://codereview.chromium.org/2289613002
Cr-Commit-Position: refs/heads/master@{#38968}
There's no need to preserve the exact callee for lazy bailouts
from JSCallFunction in the AstGraphBuilder, as fullcodegen code
will never look at that value after the callee returns. So we
just push optimized_out instead.
BUG=v8:5267
R=jarin@chromium.org
Review-Url: https://codereview.chromium.org/2285183002
Cr-Commit-Position: refs/heads/master@{#38963}
Reason for revert:
Tanks pretty much alle metrics across the board. Probably LO space limit too low but needs investigation.
Original issue's description:
> [heap] Switch to 500k pages
>
> Decrease regular heap object size to 400k. In a follow up, we can now get rid of
> the new space border page while keeping the 1M minimum new space size.
>
> This reverts commit 1617043c10.
>
> BUG=chromium:636331
>
> Committed: https://crrev.com/2101e691caeef656eb91f1c98620b3955d337c83
> Cr-Commit-Position: refs/heads/master@{#38916}
TBR=ulan@chromium.org,verwaest@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=chromium:636331
NOPRESUBMIT=true
Review-Url: https://codereview.chromium.org/2289493002
Cr-Commit-Position: refs/heads/master@{#38960}
Rebuilding (after touching certain files) is crazy slow because
includes are out of control. Many of these files we need to rebuild are
cctests which pull in more includes than they need.
BUG=v8:5294
Review-Url: https://codereview.chromium.org/2278103002
Cr-Commit-Position: refs/heads/master@{#38933}
Previously the calls to ExpressionClassifier::Accumulate() each chose
slightly different sets of productions to accumulate, and it turned
out that these were in some cases broader than needed and in some
cases less broad.
The existence of some grab-bag production bitmasks like
ExpressionClassifier::ExpressionProductions made this situation more
error-prone (for example, that production was missing AsyncArrowFormalParametersProduction).
This patch removes all "grab-bags" besides AllProductions. In some of
the places where code was using those grab-bags for convenience, it
switches them to use negation of AllProductions. In other, specifically
those having to do with expressions that are disallowed anywhere in
a sub-expression of a parameter list, I've added a new method on
ExpressionClassifier to centralize the logic.
The aforementioned centralization/addition of
AsyncArrowFormalParametersProduction fixes several cases where we were
failing to report an error for 'await' in some contexts; I've added
those test cases.
The patch also narrows all cases to exactly the set or productions
necessary, with a comment on each explaining the choice.
BUG=v8:4483
Review-Url: https://codereview.chromium.org/2271063002
Cr-Commit-Position: refs/heads/master@{#38918}
Decrease regular heap object size to 400k. In a follow up, we can now get rid of
the new space border page while keeping the 1M minimum new space size.
This reverts commit 1617043c10.
BUG=chromium:636331
Review-Url: https://codereview.chromium.org/2278653003
Cr-Commit-Position: refs/heads/master@{#38916}
Reason for revert:
Octane/Mandreel aborts with an exception now:
TypeError: __FUNCTION_TABLE__[(r2 >> 2)] is not a function
Original issue's description:
> [turbofan] Insert dummy values when changing from None type.
>
> Currently we choose the MachineRepresentation::kNone representation for
> values of Type::None, and when converting values from the kNone representation
> we use "impossible" conversions that will crash at runtime. This
> assumes that the impossible conversions should never be hit (the only
> way to produce the impossible values is to perform an always-failing
> runtime check on a value, such as Smi-checking a string). Note that
> this assumes that the runtime check is executed before the impossible
> convesrion.
>
> Introducing BitwiseOr type feedback broke this in two ways:
>
> - we always pick Word32 representation for bitwise-or, so the
> impossible conversion does not trigger (it only triggers with
> None representation), and we could end up with unsupported
> conversions from Word32.
>
> - even if we inserted impossible conversions, they are pure conversions.
> Since untagging, bitwise-or operations are also pure, we could hoist
> all these before the smi check of the inputs and we could hit the
> impossible conversions before we get to the smi check.
>
> This CL addresses this by just providing dummy values for conversions
> from the Type::None type. It also removes the impossible-to-* conversions.
>
> BUG=chromium:638132
>
> Committed: https://crrev.com/c83b21ab755f1420b6da85b3ff43d7e96ead9bbe
> Cr-Commit-Position: refs/heads/master@{#38883}
TBR=mstarzinger@chromium.org,jarin@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=chromium:638132
Review-Url: https://codereview.chromium.org/2280613002
Cr-Commit-Position: refs/heads/master@{#38893}
Currently we choose the MachineRepresentation::kNone representation for
values of Type::None, and when converting values from the kNone representation
we use "impossible" conversions that will crash at runtime. This
assumes that the impossible conversions should never be hit (the only
way to produce the impossible values is to perform an always-failing
runtime check on a value, such as Smi-checking a string). Note that
this assumes that the runtime check is executed before the impossible
convesrion.
Introducing BitwiseOr type feedback broke this in two ways:
- we always pick Word32 representation for bitwise-or, so the
impossible conversion does not trigger (it only triggers with
None representation), and we could end up with unsupported
conversions from Word32.
- even if we inserted impossible conversions, they are pure conversions.
Since untagging, bitwise-or operations are also pure, we could hoist
all these before the smi check of the inputs and we could hit the
impossible conversions before we get to the smi check.
This CL addresses this by just providing dummy values for conversions
from the Type::None type. It also removes the impossible-to-* conversions.
BUG=chromium:638132
Review-Url: https://codereview.chromium.org/2266823002
Cr-Commit-Position: refs/heads/master@{#38883}
Before this patch all tracing scopes in incremental marking would be reset
during a gc tracer start/stop cycle. This patch handles scopes the same way it
does other incremental marking metrics.
Also:
- Align finalization metric with regular marking metric.
- Smaller cleanups
BUG=chromium:639818
Review-Url: https://codereview.chromium.org/2273673002
Cr-Commit-Position: refs/heads/master@{#38834}
Drive-by fix: the order of parameters in the BinaryOpWithFeedback TurboFan code stubs now reflects the convention of having the context at the end.
BUG=v8:5273
Review-Url: https://codereview.chromium.org/2263253002
Cr-Commit-Position: refs/heads/master@{#38832}
This flag was only set on receiver scopes (declaration scopes) already. This makes it statically obvious.
BUG=v8:5209
Review-Url: https://codereview.chromium.org/2268333002
Cr-Commit-Position: refs/heads/master@{#38828}
- The static method CopyChars was actually used and has been extracted.
- It was used in tests, where it's been replaced w/ ExternalOneByteString...
- Only one test actually relied on Utf8 handling (as opposed to ASCII only),
and that was the test testing Utf8ToUtf16CharacterStream itself.
+66 -277 LOC :)
BUG=v8:4947
Review-Url: https://codereview.chromium.org/2256273002
Cr-Commit-Position: refs/heads/master@{#38824}
Before this patch all tracing scopes in incremental marking would be reset
during a gc tracer start/stop cycle. This patch handles scopes the same way it
does other incremental marking metrics.
Also:
- Align finalization metric with regular marking metric.
- Smaller cleanups
BUG=chromium:639818
R=jochen@chromium.org
Review-Url: https://codereview.chromium.org/2264033002
Cr-Commit-Position: refs/heads/master@{#38822}
Rebuilding (after touching certain files) is crazy slow because
includes are out of control.
Fixing it:
- Don't include stuff in headers unless necessary.
- Include the stuff you need, not some other stuff that happens to include the
stuff you need.
BUG=v8:5294
Review-Url: https://codereview.chromium.org/2268303002
Cr-Commit-Position: refs/heads/master@{#38818}
This avoids checking for outer_scope == nullptr in Scope::Scope
BUG=v8:5209
Review-Url: https://codereview.chromium.org/2266973002
Cr-Commit-Position: refs/heads/master@{#38812}
This changes the compilation pipeline so that mixed stacks are allowed
when bytecode is preserved. This means there can be activations of both,
"baseline" as well as "unoptimized" code active on the stack at the same
time for any single given function.
R=rmcilroy@chromium.org
BUG=v8:4280
Review-Url: https://codereview.chromium.org/2267693002
Cr-Commit-Position: refs/heads/master@{#38809}
The following code was previously accepted:
async function f() {
let g = (await) => {};
}
But per the spec, using 'await' is disallowed in arrow parameters
by an early error rule (just as 'yield' is disallowed in arrow
params inside generators).
There was special logic in ParseUnaryExpression which seems to have been
there only to allow that case. Having removed it, we get a SyntaxError in
the right cases anyway when ParseUnaryExpression chokes on whatever
illegal token follows 'await' in the cases this code previously handled.
Also removes the unnecessary AsyncBindingPatternProduction enum value.
R=caitp@igalia.com, littledan@chromium.org
BUG=v8:4483
Review-Url: https://codereview.chromium.org/2258313002
Cr-Commit-Position: refs/heads/master@{#38802}
When doing a component build, some test binaries link against the object
files directly, bypassing the components. This results, however, and
rightly so, in linker warnings. In gyp, we just suppressed them. During
the transition to gn, this was dropped for two binaries.
Here I add the suppressions back in.
Long term, we should either change the tests to go through the public
API, or export the required symbols.
BUG=chromium:633688
R=jkummerow@chromium.org
Review-Url: https://codereview.chromium.org/2261123003
Cr-Commit-Position: refs/heads/master@{#38793}
Adds InterpreterCompilationJob as a sub-class of
CompilationJob, to enable off-thread bytecode
generation. Currently only used in
Interpreter::MakeBytecode.
As part of this change, CompilationJob is modified
to make it less specific to optimized compilation,
renaming the phases as follows:
- CreateGraph -> PrepareJob
- OptimizeGraph -> ExecuteJob
- GenerateCode -> FinalizeJob
RegisterWeakObjectsInOptimizedCode is also moved out
of CompilationJob and instead becomes a static function
on Compiler.
BUG=v8:5203
Committed: https://crrev.com/1fb6a7e697e8bc5b4af51647553741f966e00cdc
Committed: https://crrev.com/785990e9fc0dd9a9d963d25d0bed2909165e4ca9
Committed: https://crrev.com/d7c6195c4c5cdc080caa74dfe2ae9ecab69bea73
Review-Url: https://codereview.chromium.org/2240463002
Cr-Original-Original-Original-Commit-Position: refs/heads/master@{#38662}
Cr-Original-Original-Commit-Position: refs/heads/master@{#38668}
Cr-Original-Commit-Position: refs/heads/master@{#38725}
Cr-Commit-Position: refs/heads/master@{#38778}
This makes us able to get rid of dependencies to parser.h from places
which only need the ParseInfo, and also gets rid of the curious Parser
<-> Compiler circular dependency.
Also IWYUd where necessary.
BUG=
Review-Url: https://codereview.chromium.org/2268513002
Cr-Commit-Position: refs/heads/master@{#38777}
This patch subsumes CoverInitializedNameProduction to create an ObjectLiteralProduction which is now used to report the duplicate proto error as well.
This patch also changes ObjectLiteralChecker::CheckProperty
to record an ObjectLiteralProduction error instead of
bailing out immediately. Once we realize that we're in a
pattern, we rewind the error, otherwise we report the
error.
BUG=v8:5121
Review-Url: https://codereview.chromium.org/2255353002
Cr-Commit-Position: refs/heads/master@{#38764}
Currently when redefining eval or arguments in non-simple parameter list and
destructuring binding, V8 doesn't throw any error, this patch fixes it.
BUG=v8:5201
LOG=N
Review-Url: https://codereview.chromium.org/2185223002
Cr-Commit-Position: refs/heads/master@{#38762}
This fixes the self-healing mechanism for closures in the interpreter
entry trampoline not that bytecode can be preserved even when baseline
code is already available.
R=rmcilroy@chromium.org
TEST=cctest/test-compiler/IgnitionEntryTrampolineSelfHealing
BUG=chromium:638225
Review-Url: https://codereview.chromium.org/2257143002
Cr-Commit-Position: refs/heads/master@{#38747}
Changes the control flow builder classes to make use of the
BytecodeLabels helper class.
BUG=v8:4280
LOG=n
Review-Url: https://codereview.chromium.org/2254493002
Cr-Commit-Position: refs/heads/master@{#38744}
Reason for revert:
Tanks octane
Original issue's description:
> [heap] Improve size profiling for ArrayBuffer tracking
>
> Eagerly account for retained sizes during ArrayBuffer tracking. Following up on this,
> we can now do Scavenges if the amount of memory retained from new space is too large.
>
> BUG=chromium:621829
> R=jochen@chromium.org,hpayer@chromium.org
>
> Committed: https://crrev.com/28e13bd6a75c9467dae43043e7b741a1387d5252
> Cr-Commit-Position: refs/heads/master@{#38731}
TBR=jochen@chromium.org,hpayer@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=chromium:621829
Review-Url: https://codereview.chromium.org/2261513003
Cr-Commit-Position: refs/heads/master@{#38739}
Eagerly account for retained sizes during ArrayBuffer tracking. Following up on this,
we can now do Scavenges if the amount of memory retained from new space is too large.
BUG=chromium:621829
R=jochen@chromium.org,hpayer@chromium.org
Review-Url: https://codereview.chromium.org/2210263002
Cr-Commit-Position: refs/heads/master@{#38731}
Reason for revert:
Revert again...
Original issue's description:
> [Interpreter] Introduce InterpreterCompilationJob
>
> Adds InterpreterCompilationJob as a sub-class of
> CompilationJob, to enable off-thread bytecode
> generation. Currently only used in
> Interpreter::MakeBytecode.
>
> As part of this change, CompilationJob is modified
> to make it less specific to optimized compilation,
> renaming the phases as follows:
> - CreateGraph -> PrepareJob
> - OptimizeGraph -> ExecuteJob
> - GenerateCode -> FinalizeJob
>
> RegisterWeakObjectsInOptimizedCode is also moved out
> of CompilationJob and instead becomes a static function
> on Compiler.
>
> BUG=v8:5203
>
> Committed: https://crrev.com/1fb6a7e697e8bc5b4af51647553741f966e00cdc
> Committed: https://crrev.com/785990e9fc0dd9a9d963d25d0bed2909165e4ca9
> Committed: https://crrev.com/d7c6195c4c5cdc080caa74dfe2ae9ecab69bea73
> Cr-Original-Original-Commit-Position: refs/heads/master@{#38662}
> Cr-Original-Commit-Position: refs/heads/master@{#38668}
> Cr-Commit-Position: refs/heads/master@{#38725}
TBR=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=v8:5203
Review-Url: https://codereview.chromium.org/2260583002
Cr-Commit-Position: refs/heads/master@{#38727}
One more bytecode to pass info through to TurboFan.
BUG=v8:4280
LOG=n
Review-Url: https://codereview.chromium.org/2260473003
Cr-Commit-Position: refs/heads/master@{#38726}
Adds InterpreterCompilationJob as a sub-class of
CompilationJob, to enable off-thread bytecode
generation. Currently only used in
Interpreter::MakeBytecode.
As part of this change, CompilationJob is modified
to make it less specific to optimized compilation,
renaming the phases as follows:
- CreateGraph -> PrepareJob
- OptimizeGraph -> ExecuteJob
- GenerateCode -> FinalizeJob
RegisterWeakObjectsInOptimizedCode is also moved out
of CompilationJob and instead becomes a static function
on Compiler.
BUG=v8:5203
Committed: https://crrev.com/1fb6a7e697e8bc5b4af51647553741f966e00cdc
Committed: https://crrev.com/785990e9fc0dd9a9d963d25d0bed2909165e4ca9
Review-Url: https://codereview.chromium.org/2240463002
Cr-Original-Original-Commit-Position: refs/heads/master@{#38662}
Cr-Original-Commit-Position: refs/heads/master@{#38668}
Cr-Commit-Position: refs/heads/master@{#38725}
Generates a JSCreateWithContext node for TurboFan to optimize.
BUG=v8:4280
LOG=n
Review-Url: https://codereview.chromium.org/2255793002
Cr-Commit-Position: refs/heads/master@{#38723}
Removes all accesses to the Isolate during bytecode generation and the
bytecode pipeline. Adds an DisallowIsolateAccessScope which is used to
enforce this invariant within the BytecodeGenerator.
BUG=v8:5203
Review-Url: https://codereview.chromium.org/2242193002
Cr-Commit-Position: refs/heads/master@{#38716}
This moves the module_descriptor_ field to that subclass, as well as other module-only methods.
BUG=v8:5209
Review-Url: https://codereview.chromium.org/2252223002
Cr-Commit-Position: refs/heads/master@{#38703}
Ensures SMI values have SMI type even if they have a dot (e.g., 1.0).
Adds SMI_WITH_DOT type to maintain this.
BUG=chromium:638134
Review-Url: https://codereview.chromium.org/2248693005
Cr-Commit-Position: refs/heads/master@{#38698}
Async functions are implemented via special generator functions; special in the
sense that they generally do not immediately yield. However, our generators
implementation still assumed that every generator function initially yields
(concretely: before doing the state dispatch in a loop header). This CL fixes
that.
R=littledan@chromium.org, rmcilroy@chromium.org
BUG=chromium:638019
Review-Url: https://codereview.chromium.org/2253033002
Cr-Commit-Position: refs/heads/master@{#38684}
The Smi case was updating the feedback with a bitwise AND instead of a bitwise OR. This was causing feedback that should have been 'kAny' to be erroneusly reported as 'kSignedSmall'.
R=rmcilroy@chromium.org
Review-Url: https://codereview.chromium.org/2251863004
Cr-Commit-Position: refs/heads/master@{#38682}
This removes the representation axis from the type of {Load/StoreField}
operators representing a property load/store. The representation would
be narrowed to {None} which causes problems for all places where we use
the type to reason about the value representation. Instead we should
fully switch to {MachineRepresentation}. This is just a stop-gap fix.
R=jarin@chromium.org
BUG=chromium:636716
Review-Url: https://codereview.chromium.org/2255533003
Cr-Commit-Position: refs/heads/master@{#38678}
1, restrict use of LiteralBuffers to the tokens that actually need it.
- E.g., previously the Token::FUNCTION would have a literal buffer
containing "function", which was never actually used.
- This eliminates copies of the string data for every call to
PeekAhead or SetBookmark.
2, document & enforce the "secret" Scanner API contract w/ DCHECK
- Document & check the correspondence of token value and literal buffer.
- Document & check preconditions for calling PeekAhead, ScanRegExp*,
ScanTemplate*.
BUG=v8:4947
Review-Url: https://codereview.chromium.org/2240513003
Cr-Commit-Position: refs/heads/master@{#38677}
Reason for revert:
Breaks Win64 bot
Original issue's description:
> [Interpreter] Introduce InterpreterCompilationJob
>
> Adds InterpreterCompilationJob as a sub-class of
> CompilationJob, to enable off-thread bytecode
> generation. Currently only used in
> Interpreter::MakeBytecode.
>
> As part of this change, CompilationJob is modified
> to make it less specific to optimized compilation,
> renaming the phases as follows:
> - CreateGraph -> PrepareJob
> - OptimizeGraph -> ExecuteJob
> - GenerateCode -> FinalizeJob
>
> RegisterWeakObjectsInOptimizedCode is also moved out
> of CompilationJob and instead becomes a static function
> on Compiler.
>
> BUG=v8:5203
>
> Committed: https://crrev.com/1fb6a7e697e8bc5b4af51647553741f966e00cdc
> Committed: https://crrev.com/785990e9fc0dd9a9d963d25d0bed2909165e4ca9
> Cr-Original-Commit-Position: refs/heads/master@{#38662}
> Cr-Commit-Position: refs/heads/master@{#38668}
TBR=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=v8:5203
Review-Url: https://codereview.chromium.org/2251673003
Cr-Commit-Position: refs/heads/master@{#38669}
Adds InterpreterCompilationJob as a sub-class of
CompilationJob, to enable off-thread bytecode
generation. Currently only used in
Interpreter::MakeBytecode.
As part of this change, CompilationJob is modified
to make it less specific to optimized compilation,
renaming the phases as follows:
- CreateGraph -> PrepareJob
- OptimizeGraph -> ExecuteJob
- GenerateCode -> FinalizeJob
RegisterWeakObjectsInOptimizedCode is also moved out
of CompilationJob and instead becomes a static function
on Compiler.
BUG=v8:5203
Committed: https://crrev.com/1fb6a7e697e8bc5b4af51647553741f966e00cdc
Review-Url: https://codereview.chromium.org/2240463002
Cr-Original-Commit-Position: refs/heads/master@{#38662}
Cr-Commit-Position: refs/heads/master@{#38668}
Reason for revert:
Failing on Win64 bot:
https://build.chromium.org/p/client.v8/builders/V8%20Win64/builds/12061/steps/Check/logs/regress-635429
Original issue's description:
> [Interpreter] Introduce InterpreterCompilationJob
>
> Adds InterpreterCompilationJob as a sub-class of
> CompilationJob, to enable off-thread bytecode
> generation. Currently only used in
> Interpreter::MakeBytecode.
>
> As part of this change, CompilationJob is modified
> to make it less specific to optimized compilation,
> renaming the phases as follows:
> - CreateGraph -> PrepareJob
> - OptimizeGraph -> ExecuteJob
> - GenerateCode -> FinalizeJob
>
> RegisterWeakObjectsInOptimizedCode is also moved out
> of CompilationJob and instead becomes a static function
> on Compiler.
>
> BUG=v8:5203
>
> Committed: https://crrev.com/1fb6a7e697e8bc5b4af51647553741f966e00cdc
> Cr-Commit-Position: refs/heads/master@{#38662}
TBR=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=v8:5203
Review-Url: https://codereview.chromium.org/2249153002
Cr-Commit-Position: refs/heads/master@{#38663}
Adds InterpreterCompilationJob as a sub-class of
CompilationJob, to enable off-thread bytecode
generation. Currently only used in
Interpreter::MakeBytecode.
As part of this change, CompilationJob is modified
to make it less specific to optimized compilation,
renaming the phases as follows:
- CreateGraph -> PrepareJob
- OptimizeGraph -> ExecuteJob
- GenerateCode -> FinalizeJob
RegisterWeakObjectsInOptimizedCode is also moved out
of CompilationJob and instead becomes a static function
on Compiler.
BUG=v8:5203
Review-Url: https://codereview.chromium.org/2240463002
Cr-Commit-Position: refs/heads/master@{#38662}
Port 77c9cb8341.
Original commit message:
This commit fixes wasm little-endian load issue on big-endian platform
by introducing reverse byte operation immediately after a load.
BUG=
Review-Url: https://codereview.chromium.org/2235703002
Cr-Commit-Position: refs/heads/master@{#38660}
Slots in ConsString/SlicedString can point to an evacutaion candidate.
The MakeExternal function makes in-place conversion to external string.
After the conversion we can have a recorded slot containing an external
pointer. As long as the external pointer is aligned, this is not a
problem. We clear the recorded slots to fix verify-heap checks.
BUG=chromium:631969
LOG=NO
Finalizing CL: https://codereview.chromium.org/2199863002/
Review-Url: https://codereview.chromium.org/2242183003
Cr-Commit-Position: refs/heads/master@{#38653}
Allows us to create a corresponding TurboFan node, so TF can
optimize it.
BUG=v8:4280
LOG=n
Review-Url: https://codereview.chromium.org/2248633002
Cr-Commit-Position: refs/heads/master@{#38651}
A test exercising the public APIs for wasm serialization and
simulates the serialization scenario - serialize in one isolate, deserialize
in another.
BUG=v8:5072
Review-Url: https://codereview.chromium.org/2249973002
Cr-Commit-Position: refs/heads/master@{#38644}
Adds TestResultScope and uses it to directly jump/fall through to the
correct branch in expressions used as branch conditions.
Should enable nicer TurboFan-graphs for easier control-flow
transformations in the future.
BUG=v8:4280
LOG=n
Review-Url: https://codereview.chromium.org/2242463002
Cr-Commit-Position: refs/heads/master@{#38634}
This removes some compiler internals as well as some JavaScript specific
helper from the CodeAssembler, by either hiding or moving the support
into the CodeStubAssembler.
R=bmeurer@chromium.org
Review-Url: https://codereview.chromium.org/2246463002
Cr-Commit-Position: refs/heads/master@{#38617}
Decrease regular heap object size to 400k. In a follow up, we can now get rid of
the new space border page while keeping the 1M minimum new space size.
BUG=chromium:636331
This reverts commit 555c961990.
Review-Url: https://codereview.chromium.org/2232653003
Cr-Commit-Position: refs/heads/master@{#38608}
Previously, we would both instrument the code, and add/remove
BreakPointInfo objects through BreakLocation. This is bad design and
unsuitable for having two different code kinds.
We would now add/remove BreakPointInfo objects, and use that as source
of truth when instrumenting the code. If we have both bytecode and FCG
code, we would simply apply these break points twice to either.
Notable changes:
- Removed many functionality from BreakLocation.
- Instrumentation (patching code for breaks) happens by applying break
point info onto code.
- Instrumentation (code patching) is done by the BreakIterator. For
bytecode, it's BytecodeArrayBreakIterator. For FCG code, it's
CodeBreakIterator.
- Changes to code instrumentation mostly involves clearing current
instrumentation and then (re-)applying break points.
- DebugInfo can now reference both bytecode and FCG code.
R=jgruber@chromium.org, mstarzinger@chromium.org
BUG=v8:5265
Review-Url: https://codereview.chromium.org/2238893002
Cr-Commit-Position: refs/heads/master@{#38596}
This optimization required access to the heap which we can't do off-thread.
There doesn't seem to be a regression without this optmization in anycase,
so just rip it out.
BUG=v8:5203
Review-Url: https://codereview.chromium.org/2238853002
Cr-Commit-Position: refs/heads/master@{#38585}
With this CL all kinds of Callable can imported into wasm. Please take a special look at the context that is used now in the WasmToJSWrapper.
BUG=633895
TEST=mjsunit/wasm/ffi.js
Review-Url: https://codereview.chromium.org/2208703002
Cr-Commit-Position: refs/heads/master@{#38569}
1. The third parameter of strncpy should be the length of source string.
2. Value contains " should be valid.
BUG=v8:4561
Review-Url: https://codereview.chromium.org/2232683002
Cr-Commit-Position: refs/heads/master@{#38563}
This changes Scope::function_ (for holding the name binding
for named function expression) from a VariableDeclaration
to a Variable. No work is done when visiting this declaration,
since it's kCreatedInitialized, so we can treat it like
other function-specific variables.
This simplifies a wide variety of code, and centralizes
the logic for constructing the variable inside scopes.cc.
This may one day make it easier to eliminate the CONST_LEGACY
VariableMode.
R=neis@chromium.org, verwaest@chromium.org
BUG=v8:5209
Review-Url: https://codereview.chromium.org/2232633002
Cr-Commit-Position: refs/heads/master@{#38558}
In addition, make use of Variable::binding_needs_init() in addition to
VariableMode when deciding whether to do hole checking in variable assignment.
R=rmcilroy@chromium.org
Review-Url: https://codereview.chromium.org/2227203002
Cr-Commit-Position: refs/heads/master@{#38555}
This patch is based on alph's CL https://codereview.chromium.org/2128613004/.
This patch makes GetStackSample propogate the register state when using
simulator helper, and adds argument to avoid using register state from simulator
when pass the native register state.
BUG=v8:4789
LOG=N
Review-Url: https://codereview.chromium.org/2189513002
Cr-Commit-Position: refs/heads/master@{#38554}
This is to prevent a collision with Expectations class defined in test-field-type-tracking.cc, which happens in Clang under certain conditions (official build + Precise + unknown).
While the original intent was to just workaround the Clang bug, putting types into anonymous namespace seems reasonable anyway (thank you to Benedikt Meurer for the suggestion!)
BUG=630335
Review-Url: https://codereview.chromium.org/2227073002
Cr-Commit-Position: refs/heads/master@{#38552}
Introduces code stubs to collect type feedback for the Add, Mul, Div and Mod operations in the interpreter, and modifies the BytecodeGraphBuilder to make use of it.
BUG=v8:5273
LOG=N
Review-Url: https://codereview.chromium.org/2224343002
Cr-Commit-Position: refs/heads/master@{#38543}
Reason for revert:
Failures on waterfall:
e.g. http://build.chromium.org/p/client.v8/builders/V8%20Linux64%20TSAN/builds/11134
Original issue's description:
> [heap] Switch to 500k pages
>
> - Decrease regular heap object size to 300k, keeping the same ration (60%)
> between this limit and page size.
>
> In a follow up, we can now get rid of the new space border page while
> keeping the 1M minimum new space size.
>
> Some results (v8.infinite_scroll; 3 runs):
> - evacuate.avg: +15.3% (1.4->1.2)
> - evacuate.max: +24.4% (2.4->1.8)
>
> BUG=chromium:581412
> LOG=N
> R=hpayer@chromium.org, ulan@chromium.org, yangguo@chromium.org
>
> Committed: https://crrev.com/ffe5c670e1559d11e7b252e15fec38765e7dbe4f
> Cr-Commit-Position: refs/heads/master@{#38533}
TBR=hpayer@chromium.org,ulan@chromium.org,yangguo@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=chromium:581412
Review-Url: https://codereview.chromium.org/2229403003
Cr-Commit-Position: refs/heads/master@{#38537}
LoadInternalField performs some redundant checks in the context of
fast accessors.
This improves the speedup from 20% to 60% for next/previousSibling in
the Dromaeo DOM traversal benchmarks.
BUG=chromium:508898
Review-Url: https://codereview.chromium.org/2186593002
Cr-Commit-Position: refs/heads/master@{#38535}
- Decrease regular heap object size to 300k, keeping the same ration (60%)
between this limit and page size.
In a follow up, we can now get rid of the new space border page while
keeping the 1M minimum new space size.
Some results (v8.infinite_scroll; 3 runs):
- evacuate.avg: +15.3% (1.4->1.2)
- evacuate.max: +24.4% (2.4->1.8)
BUG=chromium:581412
LOG=N
R=hpayer@chromium.org, ulan@chromium.org, yangguo@chromium.org
Review-Url: https://codereview.chromium.org/2013713003
Cr-Commit-Position: refs/heads/master@{#38533}
Updates a number of AST operations to avoid dereferencing handles
such that they can safely be called off-thread. Also adds a
HandleDereferenceMode argument to some operations where handles are
compared. If handle dereferencing is allowed, the handles are compared
directly, if not then their locations are compared (which relies on the
handles being created in a CanonicalHandleScope).
BUG=v8:5203
TBR=adamk@chromium.org
Review-Url: https://codereview.chromium.org/2223523002
Cr-Commit-Position: refs/heads/master@{#38526}
Implement Bovc and Bnvc instruction macros in macro assembler.
The change 6f920d7d59 revealed an issue with AddBranchOvf for mips R6.
All branching instructions other than BOVC and BNVC are handled by Branch macro, which assures
correct handling of long and short branches. As a consequence, AddBranchOvf for R6 was working correctly
only before trampoline was emitted, but the case of long branch was not handled at all. Implemented
instruction macros enable proper handling of BOVC and BNVC in cases when long branching is needed.
TEST=test/intl/general/case-mapping.js
BUG=
Review-Url: https://codereview.chromium.org/2225323002
Cr-Commit-Position: refs/heads/master@{#38513}
