This separation is needed to make two goals possible simultaneously:
* is should be possible to offer V8 components a simple, clean
interface to TurboFan's low-level code generation that doesn't
expose details about the TF.
* it should be possible to easily create new CodeAssembler "macros"
that don't require a review from an OWNER of the compiler directory.
Review URL: https://codereview.chromium.org/1875583003
Cr-Commit-Position: refs/heads/master@{#35576}
A new script is introduced, linux_perf_report.py, which reads Linux perf
data collected when running with FLAG_perf_basic_prof enabled and
produces an input file for flamegraph.pl, or a report of the hottest
bytecode handlers.
The bottom blocks of the produced flamegraph are bytecode handlers.
Special bottom blocks exist as well for compile routines, time spent
outside the interpreter and interpreter entry trampolines.
Because various Stubs and other pieces of JITted code do not maintain the
frame pointer, some sampled callchains might be incomplete even if V8 is
compiled with no_omit_framepointer=on. The script is able to detect the
most common anomaly where an entry trampoline appears in a chain, but not
on top, meaning that the frame of another bytecode handler is hidden. In
this case, the sample will be moved to a [misattributed] group to avoid
skewing the profile of unrelated handlers.
Misattributed samples and compilation routines are hidden by default.
BUG=v8:4899
LOG=N
Review URL: https://codereview.chromium.org/1783503002
Cr-Commit-Position: refs/heads/master@{#35574}
This introduces a compiler pass that schedules the graph and re-wires effect chain according to the schedule. It also connects allocating representation changes to the effect chain, and removes the BeginRegion and EndRegion nodes - they should not be needed anymore because all effectful nodes should be already wired-in.
This is an intermediate CL - the next step is to move lowering of the Change*ToTaggedEffect nodes to StateEffectIntroduction so that we do not have to introduce the effectful versions of nodes.
Review URL: https://codereview.chromium.org/1849603002
Cr-Commit-Position: refs/heads/master@{#35565}
- Get rid of fixing up pointers on the main thread
- Get rid of sweeping on the main thread
Instead:
- Record (and process afterwards) slots in parallel
- Add the pages to the concurrent sweeper as pointers have already been fixed
This reverts commit 6df04b296b.
BUG=chromium:581412
LOG=N
TEST=cctest/test-compaction/*
Review URL: https://codereview.chromium.org/1891683002
Cr-Commit-Position: refs/heads/master@{#35485}
Fixes for misnamed toolchain from https://github.com/appcelerator/v8_titanium.
Added a way to specify the NDK path since the Mac versions of the NDK aren't checked into the tools repo.
Disabled a few dependencies which do not build on the Mac but which aren't needed for building usable V8 static libraries.
Made the including of libdl and librt omitted for Mac hosted builds.
BUG=
Review URL: https://codereview.chromium.org/1879793002
Cr-Commit-Position: refs/heads/master@{#35456}
This change implements switch as a balanced if/else tree or break table or
hybrid. A lot of asm.js modules are expected to extensively use switch
alongside function tables that can benefit from a better implementation.
BUG=v8:4203
TEST=mjsunit/asm-wasm
R=titzer@chromium.org,bradnelson@chromium.org,ahaas@chromium.org
LOG=N
Review URL: https://codereview.chromium.org/1838973002
Cr-Commit-Position: refs/heads/master@{#35455}
Despite man page documentation:
-f Display the symbol table of a dynamic library flat (as one
file not separate modules).
`nm` on mac treats `-f` as a shorthand for `-format`. The `-f` argument
does not seem to be required, so just remove it completely.
(For `-format` documentation - see `nm --help` on mac).
BUG=
Review URL: https://codereview.chromium.org/1840633002
Cr-Commit-Position: refs/heads/master@{#35445}
A new script, bytecode_dispatches_report.py reads the table produced
when FLAG_trace_ignition_dispatches is enabled and produces either a
report of top source-destination pairs, or a heatmap that can be
viewed interactively and saved to file.
BUG=v8:4899
LOG=N
Review URL: https://codereview.chromium.org/1869423002
Cr-Commit-Position: refs/heads/master@{#35438}
Check if a previous run left an inconsistent state behind.
The check is right before trying to push a new state as then
all information is available, like commit message and tag
name.
This is still only a band-aid. If gnumbd is down for a
longer period, an unprocessed commit won't be found, but
the push attempt will still fail.
Review URL: https://codereview.chromium.org/1887583002
Cr-Commit-Position: refs/heads/master@{#35437}
The usage of __attribute__((format(x, y)) was either wrong or missing from multiple functions, leading to erroneous formats. This CL:
- Imports PRINTF_FORMAT macro from Chrome's src/base/compiler-specific.h.
- Uses it appropriately.
- Imports Chrome's base/format_macros.h mainly to fix size_t formats (further cleanup could be done).
- Fixes a bunch of incorrect formats.
Original CL: https://codereview.chromium.org/1869433004
Reverted in: https://codereview.chromium.org/1867383002
Reverted again in: https://codereview.chromium.org/1877823003
Reverts due to non-CQ bots:
- First: v8_win_dbg, v8_win64_dbg, v8_mac_dbg
- Second: gc mole (added to v8_linux_rel_ng for this patch)
R= jochen@chromium.org
TBR= ahaas@chromium.org,bmeurer@chromium.org,yangguo@chromium.org
Review URL: https://codereview.chromium.org/1872203005
Cr-Commit-Position: refs/heads/master@{#35423}
This removes the "AboutToRun" callback. It makes not much
sense as it is not actually called before a test is run,
but just before the results are retrieved from the results
queue. Therefore, from an information-value p-o-v it is
redundant to the "HasRun" callback.
This also reduces log size on the bots by 50%, in order to
reduce buildbot slowness, which is tied to the amount
of logs.
Review URL: https://codereview.chromium.org/1874973003
Cr-Commit-Position: refs/heads/master@{#35382}
Reason for revert:
One small issue easily fixed here: https://codereview.chromium.org/1867333003/
But it looks like MSVS 2013 doesn't like some of the formats and exists with the unhelpful:
Stderr:
f:\dd\vctools\crt\crtw32\stdio\output.c(1125) : Assertion failed: ("Incorrect
format specifier", 0)
It's easier to revert for now, I'll dig more into the docs:
https://msdn.microsoft.com/en-us/library/56e442dc(v=vs.120).aspxhttps://msdn.microsoft.com/en-us/library/tcxf1dw6(v=vs.120).aspx
And then resubmit, making sure I run these bots.
Original issue's description:
> Fix printf formats
>
> The usage of __attribute__((format(x, y)) was either wrong or missing from multiple functions, leading to erroneous formats. This CL:
>
> - Imports PRINTF_FORMAT macro from Chrome's src/base/compiler-specific.h.
> - Uses it appropriately.
> - Imports Chrome's base/format_macros.h mainly to fix size_t formats (further cleanup could be done).
> - Fixes a bunch of incorrect formats.
>
> R= jochen@chromium.org, bmeurer@chromium.org, yangguo@chromium.org, ahaas@chromium.org
>
> Committed: https://crrev.com/6ebf9fbb93d31f9be41156a3325d58704ed4933d
> Cr-Commit-Position: refs/heads/master@{#35365}
TBR=jochen@chromium.org,bmeurer@chromium.org,yangguo@chromium.org,ahaas@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/1867383002
Cr-Commit-Position: refs/heads/master@{#35366}
The usage of __attribute__((format(x, y)) was either wrong or missing from multiple functions, leading to erroneous formats. This CL:
- Imports PRINTF_FORMAT macro from Chrome's src/base/compiler-specific.h.
- Uses it appropriately.
- Imports Chrome's base/format_macros.h mainly to fix size_t formats (further cleanup could be done).
- Fixes a bunch of incorrect formats.
R= jochen@chromium.org, bmeurer@chromium.org, yangguo@chromium.org, ahaas@chromium.org
Review URL: https://codereview.chromium.org/1869433004
Cr-Commit-Position: refs/heads/master@{#35365}
This will allow the infrastructure to warn about new very
slow tests which are not marked as slow. If not marked, they
might be scheduled late in the test run and prolong the
overall running time uselessly.
BUG=chromium:601468
LOG=n
Review URL: https://codereview.chromium.org/1863793005
Cr-Commit-Position: refs/heads/master@{#35356}
The slow_archs list had only an effect when no timeout was
passed. Now it will also increase the timeout on the bots.
Also simplified the code a bit.
Review URL: https://codereview.chromium.org/1866953002
Cr-Commit-Position: refs/heads/master@{#35355}
1) I moved the implementations of the wrapper functions into a new cc
file so that I can use these wrapper functions in tests.
2) I made a generic test for all tests in
test-run-calls-to-external-references.cc. In the new test we only
compare the result of a function call through an external reference with
the result of a direct function call. This is sufficient because we only
want to test function calls through external references work here.
The implementation of these functions are tested somewhere else.
R=titzer@chromium.org
Review URL: https://codereview.chromium.org/1853123002
Cr-Commit-Position: refs/heads/master@{#35289}
Introduce a ResumeGeneratorTrampoline, which does the actual stack state
reconstruction (currently always restores a fullcodegen frame), and
introduce appropriate TurboFan builtins for %GeneratorPrototype%.next,
%GeneratorPrototype%.return and %GeneratorPrototype%.throw based on
this native builtin.
Also unify the flooding in case of step-in to always work based on
JSFunction and remove the special casing for JSGeneratorObject.
R=mstarzinger@chromium.org, neis@chromium.orgTBR=rossberg@chromium.org
BUG=chromium:513471
LOG=n
Review URL: https://codereview.chromium.org/1865833002
Cr-Commit-Position: refs/heads/master@{#35283}
We expect that the majority of malloc'd memory held by V8 is allocated
in Zone objects. Introduce an Allocator class that is used by Zones to
manage memory, and allows for querying the current usage.
BUG=none
R=titzer@chromium.org,bmeurer@chromium.org,jarin@chromium.org
LOG=n
TBR=rossberg@chromium.org
Review URL: https://codereview.chromium.org/1847543002
Cr-Commit-Position: refs/heads/master@{#35196}
Change x64 to use the external references like all other platforms.
BUG=chromium:581076
LOG=N
Review URL: https://codereview.chromium.org/1844283002
Cr-Commit-Position: refs/heads/master@{#35160}
Test case objects were sorted without key function, resulting
in random sort order. On sharded builds, the shards are
determined by the sort order and rely on a deterministic
sorting. This led to random cctest and unittest cases being
dropped or executed twice on sharded testers.
TBR=jkummerow@chromium.org, hablich@chromium.org
Review URL: https://codereview.chromium.org/1842673002
Cr-Commit-Position: refs/heads/master@{#35151}
Difference from --perf-basic-prof:
- correctly attributes samples when code space gets reused (when unused code object dies and a new code objects is allocated at the same place).
- outputs compiled machine code for instruction-level profile.
Just like --perf-basic-prof, the file writer is not synchronized (even worse, there is a per-isolate file handle), so we will run into trouble with multiple isolates. However, this patch is still an improvement on --perf-basic-prof, and it should be fine to replace ll-prof.
The patch also introduces experimental support for debug info, but it does not seem to be picked by the perf tool.
Usage:
You need the perf tool from Linux kernel >4.5. Then run:
$ perf record -k mono d8 --perf-prof <your JS file>
$ perf inject -j -i perf.data -o perf.data.jitted
$ perf report -i perf.data.jitted
Some explanations:
The "-k mono" switch from "perf record" tells the perf tool to use the monotonic clock for perf sample timestamping. The "perf inject -j" command injects the collected code events into the perf data file, writing the output into perf.data.jitted. The perf report command then creates the report.
Review URL: https://codereview.chromium.org/1809203007
Cr-Commit-Position: refs/heads/master@{#35091}
It's been on since M49. Also moved tests from harmony -> es6,
one of which was merged with another test of the same name.
While moving stuff over to regexp.js, I also noticed that there
were unused calls to %FunctionSetName and %SetNativeFlag (those
calls are already handled by InstallGetter()).
Review URL: https://codereview.chromium.org/1838563003
Cr-Commit-Position: refs/heads/master@{#35076}
This patch implements ES2015 RegExp subclassing semantics, namely the
hardest part where RegExp.prototype.exec and certain flag getters can
be overridden in order to provide different behavior. This change is
hidden behind a new flag, --harmony-regexp-exec. The flag guards the
behavior by installing entirely different implementations of the
methods which follow the new semantics.
Preliminary performance tests show a 3-4x regression in the Octane
RegExp benchmark. The new code doesn't call out into several fast
paths that the old code supported, so this is expected.
The patch is tested mostly by test262, where most RegExp tests are fixed,
with the exception of deliberate spec violations for web compatibility,
and for the 'sticky' flag, which is not dynamically read by this patch
in all cases but rather statically compiled into the RegExp. The latter
will require a follow-on patch to implement. A small additional set of
tests verifies one particular case, mostly to check whether the flag
mechanism works.
R=adamk,yangguo@chromium.org
LOG=Y
BUG=v8:4602
Review URL: https://codereview.chromium.org/1596483005
Cr-Commit-Position: refs/heads/master@{#35068}
Reason for revert:
Makes nosnap bots timeout due to having to rebuild bytecode handlers.
Original issue's description:
> [Interpreter] Remove separate Ignition snapshot.
>
> Removes the seperate Ignition snapshot and build the Ignition bytecode
> handlers in the default snapshot.
>
> BUG=v8:4280
> LOG=N
>
> Committed: https://crrev.com/1798f3fe84faff32ba44e09f6aed79245dd98d80
> Cr-Commit-Position: refs/heads/master@{#35058}
TBR=machenbach@google.com,yangguo@chromium.org,mstarzinger@chromium.org,machenbach@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/1827143002
Cr-Commit-Position: refs/heads/master@{#35059}
Removes the seperate Ignition snapshot and build the Ignition bytecode
handlers in the default snapshot.
BUG=v8:4280
LOG=N
Review URL: https://codereview.chromium.org/1833643002
Cr-Commit-Position: refs/heads/master@{#35058}
The linter (i.e. cpplint.py) no longer needs to check for alpha-sorted
include directives because our source formatting (i.e. clang-format)
will take care of this by now. This is the current default configuration
of the underlying linter anyways.
Note that the two tools disagree about the correct ordering about files
containing dash characters. The ordering suggested by the formatter is
more natural. Having the formatter trigger linter errors is not a good
situation to be in.
R=jochen@chromium.org
Review URL: https://codereview.chromium.org/1822003002
Cr-Commit-Position: refs/heads/master@{#34985}
Introduces a bytecode whose handler executes the equivalent of %_IsArray and %_IsJSReceiver without a runtime call.
BUG=v8:4822
LOG=y
Review URL: https://codereview.chromium.org/1645763003
Cr-Commit-Position: refs/heads/master@{#34983}
Both of them shipped in Chrome 49 without incident.
Also move relevant tests from harmony/ to es6/.
Review URL: https://codereview.chromium.org/1815773002
Cr-Commit-Position: refs/heads/master@{#34964}
This change introduces wide prefix bytecodes to support wide (16-bit)
and extra-wide (32-bit) operands. It retires the previous
wide-bytecodes and reduces the number of operand types.
Operands are now either scalable or fixed size. Scalable operands
increase in width when a bytecode is prefixed with wide or extra-wide.
The bytecode handler table is extended to 256*3 entries. The
first 256 entries are used for bytecodes with 8-bit operands,
the second 256 entries are used for bytecodes with operands that
scale to 16-bits, and the third group of 256 entries are used for
bytecodes with operands that scale to 32-bits.
LOG=N
BUG=v8:4747,v8:4280
Review URL: https://codereview.chromium.org/1783483002
Cr-Commit-Position: refs/heads/master@{#34955}
Bounds check hoisting was known to be buggy and has never been turned on.
Since Crankshaft is deprecated, nobody is going to spend time fixing it,
so let's just get rid of it.
BUG=v8:4155,v8:4849
LOG=n
R=bmeurer@chromium.org
Review URL: https://codereview.chromium.org/1823623002
Cr-Commit-Position: refs/heads/master@{#34948}
(The goal is to have CodeStubAssembler be the sole assembler-like user of
the TF compiler pipeline; with RMA being a private implementation detail
and FAA being a client.)
BUG=chromium:508898
LOG=Y
Review URL: https://codereview.chromium.org/1674633002
Cr-Commit-Position: refs/heads/master@{#34852}
A startup snapshot is considered cold when it does not contain any
function code. We can now create a warm startup snapshot from a cold one
by running a warm-up script. Functions exercised by the warm-up script
are compiled and its code included in the warm startup snapshot. Side
effects caused by the warm-up script does not persist.
R=vogelheim@chromium.org
BUG=v8:4836
LOG=Y
Review URL: https://codereview.chromium.org/1805903002
Cr-Commit-Position: refs/heads/master@{#34849}
This will allow to only load json data for the files under
review instead of the whole data set.
This will be called on the infra-side after all coverage
data has been merged.
Also fix a bunch of log lines.
BUG=chromium:568949
LOG=n
NOTRY=true
Review URL: https://codereview.chromium.org/1808663002
Cr-Commit-Position: refs/heads/master@{#34834}
The feature was removed from the bots a while ago. It was
superseeded by the flaky-test detection which reruns tests.
Remaining tests still marked as flaky most certainly pass
since a while.
Referencing all the bugs whose expectations lines get
removed by this.
BUG=v8:3838,v8:3525,v8:3125
LOG=n
Review URL: https://codereview.chromium.org/1802983002
Cr-Commit-Position: refs/heads/master@{#34804}
Sometimes v8.log entries are cut off, and leave an unpaired quote.
Since the log is piped into d8 to run the tick processor, that quote
is interpreted to escape a line break.
This fix makes sure that we break lines even with unpaired quotes.
R=jkummerow@chromium.org
Review URL: https://codereview.chromium.org/1802303002
Cr-Commit-Position: refs/heads/master@{#34786}
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}
After histrogram timer added time recaling functionality,
some events, e.g. parse, histogram timer generates event log ending with 'MicroSeconds'.
Since ProfViz can't recorgnize it, this patch cuts off 'MicroSeconds' postfix.
R=vogelheim@chromium.org, yangguo@chromium.org
BUG=chromium:
LOG=N
Review URL: https://codereview.chromium.org/1771293002
Cr-Commit-Position: refs/heads/master@{#34710}
This also runs the message test suite against Ignition. By now most of
the source positions (and exception messages) are accurate, the failing
ones have been blacklisted.
R=machenbach@chromium.org
Review URL: https://codereview.chromium.org/1783773003
Cr-Commit-Position: refs/heads/master@{#34708}
This adds a function to the sancov_merger that merges the
output files of one swarming shard in parallel. This will
be called from the infrastructure when collecting/merging
swarming results.
The tool will be called subsequently for each shard. On
the first call, the target dir will be empty and the sancov
files will just be moved.
BUG=chromium:568949
LOG=n
NOTRY=true
Review URL: https://codereview.chromium.org/1782843002
Cr-Commit-Position: refs/heads/master@{#34678}
Changes include:
- better test coverage for builds with snapshot
- write snapshot blobs to buffer instead of test serialization files
- renamed tests
R=machenbach@chromium.org
Review URL: https://codereview.chromium.org/1777213002
Cr-Commit-Position: refs/heads/master@{#34657}
With this, the test runner automatically merges sancov
files after testing. There's no need to do this by some
external infrastructure.
In a future CL, we could even merge during testing to lift
harddisk pressure.
BUG=chromium:568949
LOG=n
NOTRY=true
Review URL: https://codereview.chromium.org/1776123002
Cr-Commit-Position: refs/heads/master@{#34606}
This adds sanitizer-coverage compilation, test-runner
features and post processing.
Sanitizer coverage is expected to be used together with
asan.
During test runner execution, the produced sancov files
are disambiguated and match the pattern:
<executable name>.test.<test id>.sancov.
Two additional scripts are added for merging raw sancov
files and for generating json data containing all
instrumented lines + all covered lines from merged sancov
files. Both scripts use multiprocessing for speed.
The json data will later be uploaded to google storage
for further use, e.g. to show coverage data in rietveld.
Sancov documentation:
http://clang.llvm.org/docs/SanitizerCoverage.html
BUG=chromium:568949
LOG=n
NOTRY=true
TEST=python -m unittest sancov_formatter_test
TEST=python -m unittest sancov_merger_test
Review URL: https://codereview.chromium.org/1737263003
Cr-Commit-Position: refs/heads/master@{#34578}
Introducing the KeyAccumulator accidentally removed some crucial fast-paths.
This CL starts rewriting the KeyAccumulator, step-by-step introducing the
special cases again.
BUG=chromium:545503, v8:4758
LOG=y
Review URL: https://codereview.chromium.org/1707743002
Cr-Commit-Position: refs/heads/master@{#34532}
The CompilationPhase helper class is only used in Crankshaft and is not
suitable for use in other compilers. This factors is out into a separate
file and moves it into the "crankshaft" directory.
R=jkummerow@chromium.org
Review URL: https://codereview.chromium.org/1758773002
Cr-Commit-Position: refs/heads/master@{#34441}
Initial implementation of S390 specific debug and IC functions.
R=danno@chromium.org,jkummerow@chromium.org,jochen@chromium.org,jyan@ca.ibm.com,michael_dawson@ca.ibm.com,mbrandy@us.ibm.com
BUG=
Review URL: https://codereview.chromium.org/1743263003
Cr-Commit-Position: refs/heads/master@{#34400}
Initial commit with the bulk of the src/s390/* changes
along with associated changes to the build toolchain for
the new files.
A minor update to V8PRIuPTR definition for Mac OS X
affecting 32-bit S390 sim compilations.
R=danno@chromium.org,jkummerow@chromium.org,jochen@chromium.org,jyan@ca.ibm.com,michael_dawson@ca.ibm.com,mbrandy@us.ibm.com
BUG=
Review URL: https://codereview.chromium.org/1725243004
Cr-Commit-Position: refs/heads/master@{#34331}
Adds support for cpu profiler logging to the interpreter. Modifies the
the API to be passed AbstractCode objects instead of Code objects, and
adds extra functions to AbstractCode which is required by log.cc and
cpu-profiler.cc.
The main change in sampler.cc is to determine if a stack frame is an
interpreter stack frame, and if so, use the bytecode address as the pc
for that frame. This allows sampling of bytecode functions. This
requires adding support to SafeStackIterator to determine if a frame is
interpreted, which we do by checking the PC against pre-stored addresses
for the start and end of interpreter entry builtins.
Also removes CodeDeleteEvents which are dead code and haven't
been reported for some time.
Still to do is tracking source positions which will be done in a
followup CL.
BUG=v8:4766
LOG=N
Review URL: https://codereview.chromium.org/1728593002
Cr-Commit-Position: refs/heads/master@{#34321}
This reverts commit 9146bc5e20.
This contains a fix for the following crash:
1. We record slots for a fixed array.
2. We trim the fixed array, so that some recorded slots are now in free space.
3. During mark-compact we sweep the page with the fixed array. Now free list items contain memory with recorded slots.
4. We evacuate a byte array using the new free list items.
5. We iterate slots that are now inside the byte array and crash.
BUG=chromium:589413,chromium:578883
LOG=NO
Review URL: https://codereview.chromium.org/1735523002
Cr-Commit-Position: refs/heads/master@{#34302}
Reason for revert:
Revert because of canary crashes: crbug.com/589413
Original issue's description:
> Replace slots buffer with remembered set.
>
> Slots pointing to evacuation candidates are now recorded in the new RememberedSet<OLD_TO_OLD>.
>
> The remembered set is extended to support typed slots.
>
> During parallel evacuation all migration slots are recorded in local slots buffers.
> After evacuation all local slots are added to the remembered set.
>
> BUG=chromium:578883
> LOG=NO
>
> Committed: https://crrev.com/2285a99ef6f7d52f4f0c4d88a7db4224443ee152
> Cr-Commit-Position: refs/heads/master@{#34212}
TBR=jochen@chromium.org,hpayer@chromium.org,mlippautz@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=chromium:578883
Review URL: https://codereview.chromium.org/1725073003
Cr-Commit-Position: refs/heads/master@{#34238}
Slots pointing to evacuation candidates are now recorded in the new RememberedSet<OLD_TO_OLD>.
The remembered set is extended to support typed slots.
During parallel evacuation all migration slots are recorded in local slots buffers.
After evacuation all local slots are added to the remembered set.
BUG=chromium:578883
LOG=NO
Review URL: https://codereview.chromium.org/1703823002
Cr-Commit-Position: refs/heads/master@{#34212}
The Proxy enumerate trap and Reflect.enumerate are removed from the
ES2016 draft specification. This patch removes the Reflect.enumerate
function, and a follow-on patch will be responsible for the Proxy
trap changes.
R=adamk
LOG=Y
BUG=v8:4768
Review URL: https://codereview.chromium.org/1721453002
Cr-Commit-Position: refs/heads/master@{#34196}
This reducer doesn't really add value, because:
(a) it is only concerned with JSCallFunction and JSToNumber, but when
we get to it, all JSCallFunction nodes will have been replaced by
Call nodes, and in the not so far future, we will also have
replaced almost all JSToNumber nodes with better code,
(b) and the reducer tries to be smart and use one of the outermost
contexts, but that might not be beneficial always; actually it
might even create longer live ranges and lead to more spilling
in some cases.
But most importantly, the JSContextRelaxation currently blocks inlining
based on SharedFunctionInfo, because it requires the inliner to check
the native context, which in turn requires JSFunction knowledge. So I'm
removing this reducer for now to unblock the more important inliner
changes.
R=jarin@chromium.org
Review URL: https://codereview.chromium.org/1715633002
Cr-Commit-Position: refs/heads/master@{#34139}
This isolates all files necessary to run jsfunfuzz. The fuzz
harness is copied into the jsfunfuzz directory and will be
deleted in the old location after the migration to swarming.
BUG=chromium:535160
LOG=n
NOTRY=true
Review URL: https://codereview.chromium.org/1706223002
Cr-Commit-Position: refs/heads/master@{#34122}
On swarming, we need to be able to pass the location of the
archive, so that it ends up in swarming's outdir.
BUG=chromium:535160
LOG=n
NOTRY=true
Review URL: https://codereview.chromium.org/1706203002
Cr-Commit-Position: refs/heads/master@{#34116}
This also ports a few changes from run-test.py to make sure
cwd = v8 root directory.
BUG=chromium:535160
LOG=n
Review URL: https://codereview.chromium.org/1707963003
Cr-Commit-Position: refs/heads/master@{#34110}
This enables downloading all gcmole dependencies from
google storage on demand, controlled by a gyp flag
"gcmole=1". This makes the analysis portable to any linux64
host. The archive contains a prebuilt clang in the needed
version, the gcmole plugin and a lua binary.
The tool can be run through a new wrapper that sets up the
environment. This'll ease running it on swarming.
BUG=chromium:535160
LOG=n
Review URL: https://codereview.chromium.org/1703533002
Cr-Commit-Position: refs/heads/master@{#34046}
Reason for revert:
[Sheriff] Still fails on android.
Original issue's description:
> reland [tools] add --pretty switch to run_perf.py
>
> This CL improves running our internal benchmarks locally by adding the
> --pretty option to tools/run_perf.py. With the flag enabled we print
> the run-time of each benchmark directly and avoid the json output at
> the end.
>
> NOTRY=true
>
> Committed: https://crrev.com/b543c40d78c3aa8283a7d9fccb6c9e26a9a81f90
> Cr-Commit-Position: refs/heads/master@{#34023}
TBR=cbruni@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/1700953002
Cr-Commit-Position: refs/heads/master@{#34033}
This new class provides a unified interface for recording and iterating slots in store and slots buffers:
RememberedSet<OLD_TO_NEW>::Insert(page, slot);
RememberedSet<OLD_TO_OLD>::Insert(page, slot);
RememberedSet<OLD_TO_NEW>::Iterate(heap, callback);
RememberedSet<OLD_TO_OLD>::Iterate(heap, callback);
After this change the store buffer is responsible only for collecting slots from the generated code.
Subsequent CLs will remove the slots buffer.
BUG=chromium:578883
LOG=NO
Review URL: https://codereview.chromium.org/1683653002
Cr-Commit-Position: refs/heads/master@{#34031}
This CL improves running our internal benchmarks locally by adding the
--pretty option to tools/run_perf.py. With the flag enabled we print
the run-time of each benchmark directly and avoid the json output at
the end.
NOTRY=true
Review URL: https://codereview.chromium.org/1681283004
Cr-Commit-Position: refs/heads/master@{#34023}
Reason for revert:
[Sheriff] Breaks android runs. Will look later why.
Original issue's description:
> [tools] add --pretty switch to run_perf.py
>
> This CL improves running our internal benchmarks locally by adding the
> --pretty option to tools/run_perf.py. With the flag enabled we print
> the run-time of each benchmark directly and avoid the json output at
> the end.
>
> NOTRY=true
>
> Committed: https://crrev.com/83f69507ab1b9380b56758b747d4f3fabc849e49
> Cr-Commit-Position: refs/heads/master@{#33981}
TBR=cbruni@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/1696293002
Cr-Commit-Position: refs/heads/master@{#34017}
This CL improves running our internal benchmarks locally by adding the
--pretty option to tools/run_perf.py. With the flag enabled we print
the run-time of each benchmark directly and avoid the json output at
the end.
NOTRY=true
Review URL: https://codereview.chromium.org/1681283004
Cr-Commit-Position: refs/heads/master@{#33981}
This returns a proper test result (failure) when files are
missing for setting up the command.
Review URL: https://codereview.chromium.org/1696713002
Cr-Commit-Position: refs/heads/master@{#33946}
Moves InterpreterAssembler out of the compiler directory and into the
interpreter directory. Makes InterpreterAssembler as subclass of
CodeStubAssembler.
As part of this change, the special bytecode dispatch linkage type
is removed and instead we use a InterfaceDispatchDescriptor and
a normal CodeStub linkage type.
Removes a bunch of duplicated logic in InterpreterAssembler and
instead uses the CodeStubAssembler logic. Refactors Interpreter
with these changes.
Modifies CodeStubAssembler to add the extra operations required
by the Interpreter (extra call types, raw memory access and some extra
binary ops). Also adds the ability for subclasses to add extra
prologue and epilogue operations around calls, which is required
for the Interpreter.
BUG=v8:4280
LOG=N
Review URL: https://codereview.chromium.org/1673333004
Cr-Commit-Position: refs/heads/master@{#33873}
This moves the JSCreate related functionality from JSTypedLowering into
a dedicated JSCreateLowering reducer. This is in preparation of landing
the support for optimized literals in TurboFan, which would blow up
JSTypedLowering quite seriously otherwise.
R=mstarzinger@chromium.org
Review URL: https://codereview.chromium.org/1678833002
Cr-Commit-Position: refs/heads/master@{#33813}
This replaces the global remembered set with per-page remembered sets.
Each page in the old space, map space, and large object space keeps track of
the set of slots in the page pointing to the new space.
The data structure for storing slot sets is a two-level bitmap, which allows
us to remove the store buffer overflow and SCAN_ON_SCAVENGE logic.
Design doc: https://goo.gl/sMKCf7
BUG=chromium:578883
LOG=NO
Review URL: https://codereview.chromium.org/1608583002
Cr-Commit-Position: refs/heads/master@{#33806}
The goal of the Int64Reducer is to replace all int64 nodes in a tf graph
with a set of int32 nodes such that 64 bit tf functions can be executed
on 32 bit platforms. At the moment the Int64Reducer only replaces
Int64Constants, TruncateInt64ToInt32, and Word64And.
R=titzer@chromium.org
Review URL: https://codereview.chromium.org/1655883002
Cr-Commit-Position: refs/heads/master@{#33721}
This CL removes the Config templatization from the types. It is not
necessary anymore, after the HeapTypes have been removed.
The CL also changes the type hierarchy - the specific type kinds are
not inner classes of the Type class and they do not inherit from Type.
This is partly because it seems impossible to make this work without
templates. Instead, a new TypeBase class is introduced and all the
structural (i.e., non-bitset) types inherit from it.
The bitset type still requires the bit-munging hack and some nasty
reinterpret-casts to pretend bitsets are of type Type*. Additionally,
there is now the same hack for TypeBase - all pointers to the sub-types
of TypeBase are reinterpret-casted to Type*. This is to keep the type
constructors in inline method definitions (although it is unclear how
much that actually buys us).
In future, we would like to move to a model where we encapsulate Type*
into a class (or possibly use Type where we used to use Type*). This
would loosen the coupling between bitset size and pointer size, and
eventually we would be able to have more bits.
TBR=bradnelson@chromium.org
Review URL: https://codereview.chromium.org/1655833002
Cr-Commit-Position: refs/heads/master@{#33656}
Improved flexibility for the perf runner, by adding option to
specify precisely shell binary.
NOTRY=true
Review URL: https://codereview.chromium.org/1659483003
Cr-Commit-Position: refs/heads/master@{#33649}
BUG=
A bug in android-sync.sh, which caused the android_arm.release.check
unittests crash on device. It is fixed by adding:
sync_file "$OUTDIR/$ARCH_MODE/natives_blob.bin"
sync_file "$OUTDIR/$ARCH_MODE/snapshot_blob.bin"
Review URL: https://codereview.chromium.org/1616393002
Cr-Commit-Position: refs/heads/master@{#33578}
This reverts commit 85ba94f28c.
All parallelism can be turned off using --predictable, or --noparallel-compaction.
This patch completely parallelizes
- semispace copy: from space -> to space (within newspace)
- newspace evacuation: newspace -> oldspace
- oldspace compaction: oldspace -> oldspace
Previously newspace has been handled sequentially (semispace copy, newspace
evacuation) before compacting oldspace in parallel. However, on a high level
there are no dependencies between those two actions, hence we parallelize them
altogether. We base the number of evacuation tasks on the overall set of
to-be-processed pages (newspace + oldspace compaction pages).
Some low-level details:
- The hard cap on number of tasks has been lifted
- We cache store buffer entries locally before merging them back into the global
StoreBuffer in a finalization phase.
- We cache AllocationSite operations locally before merging them back into the
global pretenuring storage in a finalization phase.
- AllocationSite might be compacted while they would be needed for newspace
evacuation. To mitigate any problems we defer checking allocation sites for
newspace till merging locally buffered data.
CQ_EXTRA_TRYBOTS=tryserver.v8:v8_linux_arm64_gc_stress_dbg,v8_linux_gc_stress_dbg,v8_mac_gc_stress_dbg,v8_linux64_asan_rel,v8_linux64_tsan_rel,v8_mac64_asan_rel
BUG=chromium:524425
LOG=N
R=hpayer@chromium.org, ulan@chromium.org
Review URL: https://codereview.chromium.org/1640563004
Cr-Commit-Position: refs/heads/master@{#33552}
Reason for revert:
[Sheriff] Leads to crashes on all webrtc chromium testers, e.g.:
https://build.chromium.org/p/chromium.webrtc/builders/Mac%20Tester/builds/49664
Original issue's description:
> [heap] Parallel newspace evacuation, semispace copy, and compaction \o/
>
> All parallelism can be turned off using --predictable, or --noparallel-compaction.
>
> This patch completely parallelizes
> - semispace copy: from space -> to space (within newspace)
> - newspace evacuation: newspace -> oldspace
> - oldspace compaction: oldspace -> oldspace
>
> Previously newspace has been handled sequentially (semispace copy, newspace
> evacuation) before compacting oldspace in parallel. However, on a high level
> there are no dependencies between those two actions, hence we parallelize them
> altogether. We base the number of evacuation tasks on the overall set of
> to-be-processed pages (newspace + oldspace compaction pages).
>
> Some low-level details:
> - The hard cap on number of tasks has been lifted
> - We cache store buffer entries locally before merging them back into the global
> StoreBuffer in a finalization phase.
> - We cache AllocationSite operations locally before merging them back into the
> global pretenuring storage in a finalization phase.
> - AllocationSite might be compacted while they would be needed for newspace
> evacuation. To mitigate any problems we defer checking allocation sites for
> newspace till merging locally buffered data.
>
> CQ_EXTRA_TRYBOTS=tryserver.v8:v8_linux_arm64_gc_stress_dbg,v8_linux_gc_stress_dbg,v8_mac_gc_stress_dbg,v8_linux64_asan_rel,v8_linux64_tsan_rel,v8_mac64_asan_rel
> BUG=chromium:524425
> LOG=N
> R=hpayer@chromium.org, ulan@chromium.org
>
> Committed: https://crrev.com/8f0fd8c0370ae8c5aab56491b879d7e30c329062
> Cr-Commit-Position: refs/heads/master@{#33523}
TBR=hpayer@chromium.org,ulan@chromium.org,mlippautz@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=chromium:524425
Review URL: https://codereview.chromium.org/1643473002
Cr-Commit-Position: refs/heads/master@{#33539}
All parallelism can be turned off using --predictable, or --noparallel-compaction.
This patch completely parallelizes
- semispace copy: from space -> to space (within newspace)
- newspace evacuation: newspace -> oldspace
- oldspace compaction: oldspace -> oldspace
Previously newspace has been handled sequentially (semispace copy, newspace
evacuation) before compacting oldspace in parallel. However, on a high level
there are no dependencies between those two actions, hence we parallelize them
altogether. We base the number of evacuation tasks on the overall set of
to-be-processed pages (newspace + oldspace compaction pages).
Some low-level details:
- The hard cap on number of tasks has been lifted
- We cache store buffer entries locally before merging them back into the global
StoreBuffer in a finalization phase.
- We cache AllocationSite operations locally before merging them back into the
global pretenuring storage in a finalization phase.
- AllocationSite might be compacted while they would be needed for newspace
evacuation. To mitigate any problems we defer checking allocation sites for
newspace till merging locally buffered data.
CQ_EXTRA_TRYBOTS=tryserver.v8:v8_linux_arm64_gc_stress_dbg,v8_linux_gc_stress_dbg,v8_mac_gc_stress_dbg,v8_linux64_asan_rel,v8_linux64_tsan_rel,v8_mac64_asan_rel
BUG=chromium:524425
LOG=N
R=hpayer@chromium.org, ulan@chromium.org
Review URL: https://codereview.chromium.org/1577853007
Cr-Commit-Position: refs/heads/master@{#33523}
This increases the size of register operands to be 16-bit.
Not all bytecodes have wide register variants, so when they are
needed a register translator will copy them into a small area
reserved at the top of the 8-bit register range and these registers
are supplied as arguments to the bytecode with 8-bit operands.
This is non-intrusive for typical bytecode where the number of
registers is less than 120. For bytecodes with wide register
operands (above the window) their index needs to be translated
to avoid the reserved translation window.
Enables splay.js to run in Octane and a handful of mjsunit tests.
BUG=v8:4280,v8:4675
LOG=NO
Review URL: https://codereview.chromium.org/1613163002
Cr-Commit-Position: refs/heads/master@{#33516}
The current support for try-catch in the interpreter can handle most of
the cases appearing in our test suite. Also the flag in question did not
detect try-finally constructs. This removes the flag and instead extends
the test expectations.
R=rmcilroy@chromium.org
BUG=v8:4674
LOG=n
Review URL: https://codereview.chromium.org/1631593003
Cr-Commit-Position: refs/heads/master@{#33494}
Is it frozen water? Is it a train? No, but it's both (relatively) fast and
(relatively) cool, it's ICE, the IC-Explorer. Upload an IC trace and you can
easily* drill-down on where most IC changes happen. It even comes with a colored
title and runs in your favourite browser without dependencies (yeah, I'm looking
at you JQuery!)
*according to a user study with a random 1-person group.
R=mvstanton@chromium.org
BUG=
Review URL: https://codereview.chromium.org/1618213003
Cr-Commit-Position: refs/heads/master@{#33467}
This simplifies correlating offsets with the output from
--print-opt-code, which outputs offsets in decimal.
We keep the hex output since branch instructions in the perf dump use
hex labels. We just include the decimal offset along with the hex offset.
BUG=
Review URL: https://codereview.chromium.org/1612403002
Cr-Commit-Position: refs/heads/master@{#33455}
Show tick count, besides the percentage spent on an
instruction. Aids perf investigations where we deal with
stalls, for example. Percentage-wise, the execution appears
distributed similarly, but the regression becomes more
apparent in the tick counts.
Review URL: https://codereview.chromium.org/1607323003
Cr-Commit-Position: refs/heads/master@{#33452}
Reason for revert:
The random nature of the tests caused the following buildbot to fail: https://build.chromium.org/p/client.v8/builders/V8%20Linux%20gcc%204.8/builds/4724/steps/Check/logs/stdio
Original issue's description:
> [profiler] Implement POC Sampling Heap Profiler
>
> This implements a proof-of-concept sampling based heap profiler inspired by
> tcmalloc's heap profiler [1] and Go's mprof/memprofile [2].
>
> The basic idea is the sample allocations using a randomized Poisson process. At
> any point in time we can cheaply request the set of live sample objects that
> should be a representative sample of heap. Samples include stack-traces from the
> allocation sites, making this an effective tool for memory leak debugging.
>
> Unlike AllocationTracking, this is intended to be cheap and usable online in
> production.
>
> The proof-of-concept is only sampling new-space allocations at this point.
> Support for sampling paged space and native allocations is anticipated in the
> future.
>
> [1] http://goog-perftools.sourceforge.net/doc/heap_profiler.html
> [2] http://blog.golang.org/profiling-go-programs
>
> Committed: https://crrev.com/e5a9947811db9c9e23557dbad27f8b8a349b3262
> Cr-Commit-Position: refs/heads/master@{#33448}
TBR=jochen@chromium.org,alph@chromium.org,hpayer@chromium.org,yangguo@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/1615173002
Cr-Commit-Position: refs/heads/master@{#33449}
This implements a proof-of-concept sampling based heap profiler inspired by
tcmalloc's heap profiler [1] and Go's mprof/memprofile [2].
The basic idea is the sample allocations using a randomized Poisson process. At
any point in time we can cheaply request the set of live sample objects that
should be a representative sample of heap. Samples include stack-traces from the
allocation sites, making this an effective tool for memory leak debugging.
Unlike AllocationTracking, this is intended to be cheap and usable online in
production.
The proof-of-concept is only sampling new-space allocations at this point.
Support for sampling paged space and native allocations is anticipated in the
future.
[1] http://goog-perftools.sourceforge.net/doc/heap_profiler.html
[2] http://blog.golang.org/profiling-go-programs
Review URL: https://codereview.chromium.org/1555553002
Cr-Commit-Position: refs/heads/master@{#33448}
This removes the above flag definition. The flag is no longer needed as
the default implementation is more than capable of faking presence of
handling of try-catch and try-finally constructs by now.
R=rmcilroy@chromium.org
BUG=v8:4674
LOG=n
Review URL: https://codereview.chromium.org/1603063003
Cr-Commit-Position: refs/heads/master@{#33402}
This implements a first version of exception handler table construction
within the interpreter. Note that the local control flow for try-catch
and try-finally statements is still off, and also stack unwinding does
not yet respect interpreter frames. But generated handler tables should
be populated correctly already.
R=oth@chromium.org
BUG=v8:4674
LOG=n
Review URL: https://codereview.chromium.org/1607433005
Cr-Commit-Position: refs/heads/master@{#33400}
Now that we support eval in Ignition, remove the fallback for eval checks
and make the flag only fallback on catch blocks.
BUG=v8:4280,v8:4676
LOG=N
Review URL: https://codereview.chromium.org/1595223004
Cr-Commit-Position: refs/heads/master@{#33384}
This splits out the SourcePosition class into a separate header file.
Reason for this refactoring is that said class is mostly used by the
Crankshaft compiler and not needed for all compilers. Also having the
assembler depend on the class creates a dependency cycle.
R=bmeurer@chromium.org
Review URL: https://codereview.chromium.org/1581083009
Cr-Commit-Position: refs/heads/master@{#33325}
Split RegisterAllocationScope out of ExpressionResult and allocate one
for each statement. This ensures that we always have an outer register
allocation scope for statement code (used in CountOperation and
RegisterExecutionResult). Also refactored the register allocator code to
move it to it's own file and rename from TemporaryRegisterScope to
BytecodeRegisterAllocator.
BUG=v8:4280
LOG=N
Review URL: https://codereview.chromium.org/1587033002
Cr-Commit-Position: refs/heads/master@{#33296}
- Use valgrind from v8/third_party/valgrind fetched as custom
deps. This will make the check more portable on buildbot
slaves without the need to install valgrind.
- Build path to checked executable to be ready for swarming.
BUG=chromium:535160
LOG=n
NOTRY=true
Review URL: https://codereview.chromium.org/1585093002
Cr-Commit-Position: refs/heads/master@{#33287}
We use a scratchpad to remember visited allocation sites for post processing
(making tenure decisions). The previous implementation used a rooted FixedArray
with constant length (256) to remember all sites. Updating the scratchpad is a
bottleneck in any parallel/concurrent implementation of newspace evacuation.
The new implementation uses a HashMap with allocation sites as keys and
temporary counts as values. During evacuation we collect a local hashmap of
visited allocation sites. Upon merging the local hashmap back into a global one
we update potential forward pointers of compacted allocation sites. The
scavenger can directly enter its entries into the global hashmap. Note that the
actual memento found count is still kept on the AllocationSite as it needs to
survive scavenges and full GCs.
BUG=chromium:524425
LOG=N
R=hpayer@chromium.org
Review URL: https://codereview.chromium.org/1535723002
Cr-Commit-Position: refs/heads/master@{#33233}
This migrates the remaining Date builtins to C++ and removes obsolete
intrinsics and JavaScript wrappers. This reduces the overhead imposed
by the Date builtins, and will allow us to optimize them later in the
TurboFan compiler, while the interpreter doesn't need to worry about
them.
R=yangguo@chromium.org
BUG=chromium:576574
LOG=n
Committed: https://crrev.com/1e51af1a5c80b1650de47dd4bc8f846fa2d85281
Cr-Commit-Position: refs/heads/master@{#33228}
Review URL: https://codereview.chromium.org/1579613002
Cr-Commit-Position: refs/heads/master@{#33231}
Reason for revert:
[Sheriff] Breaks https://build.chromium.org/p/client.v8/builders/V8%20Linux%20-%20noi18n%20-%20debug/builds/5711
Original issue's description:
> [builtins] Refactor the remaining Date builtins.
>
> This migrates the remaining Date builtins to C++ and removes obsolete
> intrinsics and JavaScript wrappers. This reduces the overhead imposed
> by the Date builtins, and will allow us to optimize them later in the
> TurboFan compiler, while the interpreter doesn't need to worry about
> them.
>
> R=yangguo@chromium.org
> BUG=chromium:576574
> LOG=n
>
> Committed: https://crrev.com/1e51af1a5c80b1650de47dd4bc8f846fa2d85281
> Cr-Commit-Position: refs/heads/master@{#33228}
TBR=yangguo@chromium.org,bmeurer@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=chromium:576574
Review URL: https://codereview.chromium.org/1574223002
Cr-Commit-Position: refs/heads/master@{#33230}
This migrates the remaining Date builtins to C++ and removes obsolete
intrinsics and JavaScript wrappers. This reduces the overhead imposed
by the Date builtins, and will allow us to optimize them later in the
TurboFan compiler, while the interpreter doesn't need to worry about
them.
R=yangguo@chromium.org
BUG=chromium:576574
LOG=n
Review URL: https://codereview.chromium.org/1579613002
Cr-Commit-Position: refs/heads/master@{#33228}
This increases the size of addressable constant pool entries for jumps
to match other bytecodes using operands indexing the constant pool.
This change also introduces reservations for constant pool entries.
Reservations are used for forward jumps to ensure a constant pool entry
will be available when the jump target (label) is bound and the jump is
patched up in the bytecode array.
BUG=v8:4280
LOG=N
Review URL: https://codereview.chromium.org/1546683002
Cr-Commit-Position: refs/heads/master@{#33125}
This patch adds the basis for subclassing TypedArrays, Arrays and
ArrayBuffers through the @@species hook, added in ES2015. This is
the first patch in a series. This patch simply defines the
@@species Symbol and installs it on the appropriate constructors.
The behavior is guarded behind the --harmony-species flag.
R=cbruni
BUG=v8:4093
LOG=Y
CQ_INCLUDE_TRYBOTS=tryserver.chromium.linux:linux_chromium_rel_ng;tryserver.blink:linux_blink_rel
TBR=hpayer@chromium.org
Review URL: https://codereview.chromium.org/1558543002
Cr-Commit-Position: refs/heads/master@{#33095}
Adds --turbo to the set of flags run with ignition (making the
configuration pure Ignition+TurboFan except for fallbacks to
full-codegen for catch / eval). Also changes the default
--ignition-filter to allow everything, rather than omit everything.
BUG=v8:4280
LOG=N
Review URL: https://codereview.chromium.org/1537433003
Cr-Commit-Position: refs/heads/master@{#33090}
Add control for the ignition test suites. This will be
followed by a change on the infra side that targets the
ignition set instead of the hardcoded mjsunit.
After that, cctest can be enabled in a separate CL. This CL
already includes the logic for running cctest for ignition
on swarming.
BUG=v8:4280
LOG=N
Review URL: https://codereview.chromium.org/1559943002
Cr-Commit-Position: refs/heads/master@{#33089}
When the 'y' flag was shipped, the property RegExp.prototype.unicode was
accidentally also shipped. However, the existence of this property should
be a usable feature testing point. This patch adds the 'unicode' getter on
RegExp.prototype only if the --harmony-regexp-unicode flag is turned on.
R=cbruni
CC=yangguo
BUG=v8:4644
LOG=Y
Review URL: https://codereview.chromium.org/1550713002
Cr-Commit-Position: refs/heads/master@{#33049}
This is based on the Skia Implementation.
More on the project can be found here:
https://docs.google.com/a/chromium.org/document/d/1_4LAnInOB8tM_DLjptWiszRwa4qwiSsDzMkO4tU-Qes/edit#heading=h.p97rw6yt8o2j
The V8 Tracing platform will replace the isolate->event_logger().
But since the current embedders (namely chromium) currently use the isolate->event_logger, I made the default implementation (event-tracer) call into isolate->event_logger if an event_logger was set.
Once the embedders properly implement the interface (for example in chromium it would look like this: https://codereview.chromium.org/707273005/), the default implementation will be doing nothing.
Once the embedders side is fixed, we will change how V8 uses the tracing framework beyond the call from Logger:CallEventLogger. (which would also include a d8 implementation)
BUG=v8:4560
LOG=N
Review URL: https://codereview.chromium.org/988893003
Cr-Commit-Position: refs/heads/master@{#32959}
This change adds support for local control flow when building graphs
from bytecode. The change ensures loop emitted from the bytecode
generator are in natural order so the only back branches are for loops.
BUG=v8:4280
LOG=N
Review URL: https://codereview.chromium.org/1502243002
Cr-Commit-Position: refs/heads/master@{#32911}
