They're supposed to be stable across several parse passes, so we'll also
store them in the associated SharedFunctionInfos
To achieve this, the PreParser and Parser need to generated the same number of
FunctionLiterals. To achieve this, we teach the PreParser about desuggaring of
class literals.
For regular functions, the function IDs are assigned in the order they occur in
the source. For arrow functions, however, we only know that it's an arrow function
after parsing the parameter list, and so the ID assigned to the arrow function is
larger than the IDs assigned to functions defined in the parameter list. This
implies that we have to reset the function ID counter to before the parameter list
when re-parsing an arrow function. To be able to do this, we store the number of
function literals found in the parameter list of arrow functions as well.
BUG=v8:5589
Review-Url: https://codereview.chromium.org/2481163002
Cr-Commit-Position: refs/heads/master@{#41309}
ThreadedList is more memory-efficient than ZoneList. This also enables
us to use ThreadedList when making Preparser track parameters (upcoming
work).
BUG=v8:5501
Review-Url: https://codereview.chromium.org/2531593002
Cr-Commit-Position: refs/heads/master@{#41307}
The BytecodeGraphBuilder assumes that deoptimization is always enabled,
so always enable it when compiling from bytecode.
BUG=chromium:668654
Review-Url: https://codereview.chromium.org/2531683004
Cr-Commit-Position: refs/heads/master@{#41303}
Up until now assertThrows allows to check the type field of an
exception, which is, however, a custom field introduced in a single
regression test. With the change assertThrows allows to check the
message field of an exception, which is set for standard V8 exceptions
by default.
I use the new assertThrows to refactor test/mjsunit/wasm/divrem-trap.js
R=titzer@chromium.org
Review-Url: https://codereview.chromium.org/2525313003
Cr-Commit-Position: refs/heads/master@{#41302}
A missing @@IsConcatSpreadable check caused the fast path inside the slow path
to be incorrect and follow the default concat strategy when the arguments
arrays contain only doubles.
BUG=chromium:668414
Review-Url: https://codereview.chromium.org/2527173002
Cr-Commit-Position: refs/heads/master@{#41301}
AsyncTaskEvents are not exposed through the inspector interface.
BUG=v8:5530
Review-Url: https://codereview.chromium.org/2532693002
Cr-Commit-Position: refs/heads/master@{#41299}
This code is no longer used by full-codegen since all functions which
use new.target, rest parameters or the internal this function binding
now grow through Ignition first, and never tier up to fullcodegen.
BUG=v8:5657
R=rmcilroy@chromium.org
Review-Url: https://codereview.chromium.org/2528293002
Cr-Commit-Position: refs/heads/master@{#41298}
For a couple of those Array builtins we can specify a useful type that
will help us to eliminate a couple of checks on their outputs.
R=yangguo@chromium.org
BUG=v8:5267
Review-Url: https://codereview.chromium.org/2529233002
Cr-Commit-Position: refs/heads/master@{#41295}
Assign types to the remaining builtins on the String.prototype where we
know a meaningful type, i.e. where the type is not dependent on some
callable function that is pass or loaded.
BUG=v8:5267
R=yangguo@chromium.org
Review-Url: https://codereview.chromium.org/2532463002
Cr-Commit-Position: refs/heads/master@{#41294}
If code has AsmWasm data we shouldn't try to optimize the JS as well, since
it will instead be optimized using the WASM data.
BUG=
Review-Url: https://codereview.chromium.org/2534463003
Cr-Commit-Position: refs/heads/master@{#41293}
This adds microbenchmarks for:
* the RegExp constructor,
* flag accessors,
* and RegExp functions: exec, @@match, @@search, test, @@split, @@replace.
Each benchmark is further split to measure fast and slow paths.
BUG=v8:5339
Review-Url: https://codereview.chromium.org/2521263003
Cr-Commit-Position: refs/heads/master@{#41285}
This code is no longer used in full-codegen or ast-graph-builder since all
functions which have class literals go through Ignition first.
BUG=v8:5657
Review-Url: https://codereview.chromium.org/2534463002
Cr-Commit-Position: refs/heads/master@{#41282}
This removes lots of boilerplate typedefs, with the caveat of renaming
CSA::Label and Variable to CLabel and CVariable within builtins-regexp.
BUG=v8:5339
Review-Url: https://codereview.chromium.org/2524363002
Cr-Commit-Position: refs/heads/master@{#41281}
This removes support for try-catch as well as try-finally constructs
from the {FullCodeGenerator}. Consequently optimized code containing
such constructs must use the {BytecodeGraphBuilder} and can no longer
use the {AstGraphBuilder} for graph building.
R=jarin@chromium.org
BUG=v8:5657
Review-Url: https://codereview.chromium.org/2521233002
Cr-Commit-Position: refs/heads/master@{#41279}
Reason for revert:
Seems to cause compile errors on Android. Will investigate on Monday.
Original issue's description:
> [base] Pass scalar arguments by value in CHECK/DCHECK
>
> This not only potentially improves performance, but also avoids weird
> linker errors, like the one below, where I used Smi::kMinValue in a
> DCHECK_EQ.
>
> > [421/649] LINK ./mksnapshot
> > FAILED: mksnapshot
> > src/base/logging.h|178| error: undefined reference to
> 'v8::internal::Smi::kMinValue'
>
> R=bmeurer@chromium.org, ishell@chromium.org
>
> Committed: https://crrev.com/76723502528c5af003fdffc3520632ea2a13fef3
> Cr-Commit-Position: refs/heads/master@{#41273}
TBR=bmeurer@chromium.org,ishell@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
Review-Url: https://codereview.chromium.org/2527883004
Cr-Commit-Position: refs/heads/master@{#41278}
Reason for revert:
Need to revert previous CL because of Android compile error, and this one depends in it.
Original issue's description:
> [base] Define CHECK comparison for signed vs. unsigned
>
> The current CHECK/DCHECK implementation fails statically if a signed
> value is compared against an unsigned value. The common solution is to
> cast on each caller, which is tedious and error-prone (might hide bugs).
> This CL implements signed vs. unsigned comparisons by executing up to
> two comparisons. For example, if i is int32_t and u is uint_32_t, a
> DCHECK_LE(i, u) would create the check
> i <= 0 || static_cast<uint32_t>(i) <= u.
> For checks against constants, at least one of the checks can be removed
> by compiler optimizations.
>
> The tradeoff we have to make is to sometimes silently execute an
> additional comparison. And we increase code complexity of course, even
> though the usage is just as easy (or even easier) as before.
>
> The compile time impact seems to be minimal:
> I ran 3 full compilations for Optdebug on my local machine, one time on
> the current ToT, one time with this CL plus http://crrev.com/2524093002.
> Before: 143.72 +- 1.21 seconds
> Now: 144.18 +- 0.67 seconds
>
> In order to check that the new comparisons are working, I refactored
> some DCHECKs in wasm to use the new magic.
>
> R=bmeurer@chromium.org, titzer@chromium.org
>
> Committed: https://crrev.com/5925074a9dab5a8577766545b91b62f2c531d3dc
> Cr-Commit-Position: refs/heads/master@{#41275}
TBR=ishell@chromium.org,titzer@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
Review-Url: https://codereview.chromium.org/2531533003
Cr-Commit-Position: refs/heads/master@{#41277}
This code is no longer used by full-codegen since all functions which use with statments,
call eval or have lookup variable access now go through Ignition first.
BUG=v8:5657
Review-Url: https://codereview.chromium.org/2514393002
Cr-Commit-Position: refs/heads/master@{#41276}
The current CHECK/DCHECK implementation fails statically if a signed
value is compared against an unsigned value. The common solution is to
cast on each caller, which is tedious and error-prone (might hide bugs).
This CL implements signed vs. unsigned comparisons by executing up to
two comparisons. For example, if i is int32_t and u is uint_32_t, a
DCHECK_LE(i, u) would create the check
i <= 0 || static_cast<uint32_t>(i) <= u.
For checks against constants, at least one of the checks can be removed
by compiler optimizations.
The tradeoff we have to make is to sometimes silently execute an
additional comparison. And we increase code complexity of course, even
though the usage is just as easy (or even easier) as before.
The compile time impact seems to be minimal:
I ran 3 full compilations for Optdebug on my local machine, one time on
the current ToT, one time with this CL plus http://crrev.com/2524093002.
Before: 143.72 +- 1.21 seconds
Now: 144.18 +- 0.67 seconds
In order to check that the new comparisons are working, I refactored
some DCHECKs in wasm to use the new magic.
R=bmeurer@chromium.org, titzer@chromium.org
Review-Url: https://codereview.chromium.org/2526783002
Cr-Commit-Position: refs/heads/master@{#41275}
If code is flushed on a SFI, we can still use the bytecode if it was compiled,
since this never gets flushed.
This fixes a DCHECK where we were trying to compile the bytecode multiple
times after the baseline code was flushed.
BUG=chromium:668133
Review-Url: https://codereview.chromium.org/2526243002
Cr-Commit-Position: refs/heads/master@{#41274}
This not only potentially improves performance, but also avoids weird
linker errors, like the one below, where I used Smi::kMinValue in a
DCHECK_EQ.
> [421/649] LINK ./mksnapshot
> FAILED: mksnapshot
> src/base/logging.h|178| error: undefined reference to
'v8::internal::Smi::kMinValue'
R=bmeurer@chromium.org, ishell@chromium.org
Review-Url: https://codereview.chromium.org/2524093002
Cr-Commit-Position: refs/heads/master@{#41273}
For dictionary-mode receivers, the KeyedStoreGeneric stub can store
properties directly in most cases. Doing so avoids the need to have
an entry in the stub cache for every map/property combination.
Original review: https://codereview.chromium.org/2504403005/
Review-Url: https://codereview.chromium.org/2528883003
Cr-Commit-Position: refs/heads/master@{#41272}
Make apply calls with double array arguments such as
Math.min.apply(Math, [1.1, 2.2]) 1.6x faster.
Drive-by-fix: pass in the isolate to ElementsAccessor::GetImpl.
BUG=v8:4826
Review-Url: https://codereview.chromium.org/2521043005
Cr-Commit-Position: refs/heads/master@{#41268}
This makes sure call-site rendering for certain {TypeError} messages is
based on the correct underlying {JSFunction}, even when inlined frames
are present. Only the {FrameSummary} knows the exact function.
R=verwaest@chromium.org
TEST=message/regress/regress-crbug-661579
BUG=chromium:661579
Review-Url: https://codereview.chromium.org/2521103005
Cr-Commit-Position: refs/heads/master@{#41264}
Reason for revert:
Fails on perf.
Original issue's description:
> [test] Add performance test for closures.
>
> Short living closures are very common in Node.js. This benchmark tracks progress
> as we move the optimizations that are currently only behind
> --mark_shared_functions_for_tier_up to the default settings.
>
> BUG=v8:5512
>
> Committed: https://crrev.com/f277da2a00cfd27d44a33a70213a65bd82d0bc95
> Cr-Commit-Position: refs/heads/master@{#41246}
TBR=bmeurer@chromium.org,leszeks@chromium.org,franzih@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:5512
Review-Url: https://codereview.chromium.org/2526163003
Cr-Commit-Position: refs/heads/master@{#41261}
