Node now requires gcc >=6.3, and we do not test on gcc <5.4 any more.
Thus remove a special case for gcc <5.
R=machenbach@chromium.org
Bug: v8:9686
Change-Id: Ifffddec611c15b704aa292a65e87cd770d85ea7b
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1786283
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63572}
This is a safe to merge hot-fix to tackle https://crbug.com/983764.
To be reverted after merging to M77.
Bug: chromium:983764
Change-Id: I3cd27481f224b352ef6bcf9dde21a8f77616acff
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1786285
Reviewed-by: Maya Lekova <mslekova@chromium.org>
Commit-Queue: Tobias Tebbi <tebbi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63570}
Node now requires gcc >=6.3, and we do not test on gcc <5.4 any more.
Thus remove a hack for gcc <5.
R=machenbach@chromium.org
Bug: v8:9686
Change-Id: I503c6b76d40499bbe45fb83996e0dfebf86f3395
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1786281
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63569}
This makes sure no underlying ArrayBuffer is reserved for modules that
don't declare a module. For the case where a memory is declared but the
initial size is 0, we still reserve a buffer in case of trap handlers.
R=ahaas@chromium.org
BUG=v8:9678
Change-Id: I837b8f257b63eb4111646806b899074babd7c9f7
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1784290
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63568}
This reduces the size per runtime stub slot by using the same sequence
we plan to use for far jumps.
Note that alignment is not an issue here, since runtime stub slots are
never patched.
R=mstarzinger@chromium.orgCC=joey.gouly@arm.com
Bug: v8:9477
Change-Id: Ib8f0f7b4930617b9c16dc54f6773572c70b681c4
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1784292
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63567}
The inferred name in the function literal might not be as accurate as the one
already on the shared function info, so use the existing one instead.
BUG=chromium:995813
Change-Id: Ie06eb964934fc039e56ebf9452f706e1192b7ab0
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1782169
Auto-Submit: Ross McIlroy <rmcilroy@chromium.org>
Commit-Queue: Dan Elphick <delphick@chromium.org>
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Dan Elphick <delphick@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63566}
On mips, NaN bit patterns is not same as WASM's definitions.
Port e101dfb708R=clemensh@chromium.org
Change-Id: I134cd6289b7cf5d1a366345fe0a79cbecc9a6f73
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1782234
Auto-Submit: Mu Tao <pamilty@gmail.com>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63565}
This reduces the size per runtime stub slot by using the same sequence
we plan to use for far jumps.
Note that alignment is not an issue here, since runtime stub slots are
never patched.
R=mstarzinger@chromium.org
Bug: v8:9477
Change-Id: Ida73896bfc26d01f2a3fbccde785928d1ac92380
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1784291
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63564}
Port 85e2dbb32a
Change-Id: I59fbd2eb10469179def9bc6332543f5fc406d1c7
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1784417
Auto-Submit: Mu Tao <pamilty@gmail.com>
Reviewed-by: Zhi An Ng <zhin@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63563}
Async functions were not correctly fixed up for code coverage, which
caused an additional uncovered range to be reported between a return
statement and the closing bracket.
This CL adds code that detects such ranges, and removes them, similarly
to how the ranges are removed for normal functions. The removal process
is different, because the parser rewrites async functions to contain a
try-catch handling promise rejection.
Change-Id: I73b08d64be74d26c32f2f9652d027430d4671251
Bug: chromium:981313, v8:8381
Change-Id: I82a7f0c54d3a48609ef5255a7659d9557e163566
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1782837
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63561}
Windows SDK defines `near` and `far` as macro in minwindef.h, so they cannot be
used as variable name if Windows SDK header file is included for Windows build.
Bug: chromium:893460
Change-Id: I5ed1076b965979b8e4e09958c1b6f0a698ec8d4f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1783839
Reviewed-by: Sigurd Schneider <sigurds@chromium.org>
Commit-Queue: Tom Tan <Tom.Tan@microsoft.com>
Cr-Commit-Position: refs/heads/master@{#63559}
Implement I64x2 multiply using 32-bit multiplies.
This approach uses two fewer cycles (0.88x) on Cortex-A53 and three fewer cycles (0.86x)
on Cortex-A72, compared to moving to general purpose registers and doing two 64-bit multiplies.
Based on a patch by Zhi An Ng.
Bug: v8:8460
Change-Id: I9c8d3bb77f0d751eec2d85823522558b7f173628
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1781696
Commit-Queue: Martyn Capewell <martyn.capewell@arm.com>
Reviewed-by: Zhi An Ng <zhin@chromium.org>
Reviewed-by: Bill Budge <bbudge@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63558}
Reduce number of old-to-new invalidations. MigrateFastToFast,
MigrateFastToSlow and DeleteObjectPropertyFast only need to invalidate
objects in some cases but not in all.
Bug: v8:9454
Change-Id: I901eecb9409c6dfa30cf6b4ee0bdd597862fc229
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1781042
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63557}
I removed the padding field because I couldn't see a reason why we would
want to pad to system pointer size. I'm guessing that the intent was to
pad to tagged pointer size, which was once relevant but isn't anymore
since one of the int32 fields got removed.
Bug: v8:8952
Change-Id: Ic191d783efd8d686f6920e6e7ce2d3dacba883c5
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1776847
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Commit-Queue: Seth Brenith <seth.brenith@microsoft.com>
Cr-Commit-Position: refs/heads/master@{#63556}
This reverts commit 352a154e88.
Reason for revert: https://crbug.com/999972
Original change's description:
> [compiler] improve inlining heuristics: call frequency per executed bytecodes
>
> TLDR: Inline less, but more where it matters. ~10% decrease in Turbofan
> compile time including off-thread, while improving Octane scores by ~2%.
>
> How things used to work:
>
> There is a flag FLAG_min_inlining_frequency that limits inlining by
> the callsite being sufficiently frequently executed. This call frequency
> was measured relative to invocations of the parent (= the function we
> originally optimize). At the same time, the limit was very low (0.15),
> meaning we mostly relied on the total amount of inlined code
> (FLAG_max_inlined_bytecode_size_cumulative) to limit inlining.
>
> How things work now:
>
> Instead of measuring call frequency relative to parent invocations, we
> should have a measure that predicts how often the callsite in question
> will be executed in the future. An obvious attempt at that would be to
> measure how often the callsite was executed in absolute numbers in the
> past. But depending on how fast feedback stabilizes, it can take more
> or less time until we optimize a function. If we just take the absolute
> call frequency up to the point in time when we optimize, we would
> inline more for functions that stabilize slowly, which doesn't make
> sense. So instead, we measure absolute call count per KB of executed
> bytecodes of the parent function.
> Since inlining big functions is more expensive, this threshold is
> additionally scaled linearly with the bytecode-size of the inlinee.
> The resulting formula is:
> call_frequency >
> FLAG_min_inlining_frequency *
> (bytecode.length() - FLAG_max_inlined_bytecode_size_small) /
> (FLAG_max_inlined_bytecode_size - FLAG_max_inlined_bytecode_size_small)
>
> The new threshold is chosen in a way that it effectively limits
> inlining, which allows us to increase
> FLAG_max_inlined_bytecode_size_cumulative without increasing inlining
> in general.
>
> The reduction in compile time (x64 build) of ~10% was observed in Octane,
> ARES-6, web-tooling-benchmark, and the standalone TypeScript benchmark.
> The hope is that this will reduce CPU-time in real-world situations
> too.
> The Octane improvements come from inlining more in places where it
> matters.
>
> Bug: v8:6682
>
> Change-Id: I99baa17dec85b71616a3ab3414d7e055beca39a0
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1768366
> Commit-Queue: Tobias Tebbi <tebbi@chromium.org>
> Reviewed-by: Jakob Gruber <jgruber@chromium.org>
> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
> Reviewed-by: Georg Neis <neis@chromium.org>
> Reviewed-by: Maya Lekova <mslekova@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#63449}
TBR=rmcilroy@chromium.org,neis@chromium.org,jgruber@chromium.org,tebbi@chromium.org,mslekova@chromium.org
# Not skipping CQ checks because original CL landed > 1 day ago.
Bug: v8:6682 chromium:999972
Change-Id: Iffca63d4bef81afa0f66e34d35fb72f3b5baf517
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1784281
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Commit-Queue: Tobias Tebbi <tebbi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63554}
Graph creation used to handle exception throwing gracefully, but this
seems to never happen, so turned it into a CHECK instead.
Change-Id: I90f8471fe77eb66402fd8abe0d5b15dcffee49bf
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1784286
Commit-Queue: Maya Lekova <mslekova@chromium.org>
Reviewed-by: Georg Neis <neis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63552}
We already do this (if we can't migrate them) when processing the
feedback but it could still happen that we find a deprecated map in the
graph later on.
Bug: chromium:996819, v8:7790
Change-Id: I3b9acc8bc21b5a9812235145b726ba3e53cc8957
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1784284
Reviewed-by: Maya Lekova <mslekova@chromium.org>
Commit-Queue: Georg Neis <neis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63551}
The "address" pointer we pass to {Allocate} and {AllocatePages}
functions is actually just a hint. The actual address of the
reservation is returned by the function.
This CL renames the {address} argument of those functions to {hint} to
make this semantic more clear.
R=mlippautz@chromium.org
Bug: v8:9396
Change-Id: I9ff3785ea4e6f9b7d77f26f224445f3f92e11f22
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1784280
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63549}
Instead of checking code flags to decide if the irregexp code object is
an off-heap trampoline, we now directly load the builtin index offset
and treat the code as on-heap if the offset is -1.
In addition the regexp stack now has its own external reference for top
of stack address. This prevents calculating the top of stack address
using the base address and size at every invocation.
Bug: chromium:999993
Change-Id: I23649e8b410a56276f26846b0b12ad29310c3db7
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1782565
Reviewed-by: Peter Marshall <petermarshall@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Patrick Thier <pthier@google.com>
Cr-Commit-Position: refs/heads/master@{#63548}
I don't know if there is another problem, but this change fixes all
problems in the test case. The fuzzer will eventually tell us if there
is another problem.
R=clemensh@chromium.org
Bug: chromium:1000503
Change-Id: I2f3ca9132e1b9e3f01e9b32604fb39b2272723f1
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1784278
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63547}
This reverts commit bf78435b2c.
Reason for revert: This CL is not what I wanted to land. I mixed up my local branches.
Original change's description:
> [wasm] Stage wasm-bigint
>
> The implementation on wasm-bigint has been done, as far as I can tell.
> There are no spec tests yet, only an out-dated copy of the original
> spec tests which don't pass anymore. Therefore I disabled all the tests
> for now and created a tracking bug at https://crbug.com/v8/9673.
>
> R=adamk@chromium.org
>
> Bug: v8:7741, v8:9673
> Change-Id: I015846cc6008ad266402b6835e634723a1a076da
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1781050
> Commit-Queue: Andreas Haas <ahaas@chromium.org>
> Reviewed-by: Adam Klein <adamk@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#63541}
TBR=adamk@chromium.org,ahaas@chromium.org
Change-Id: I5e8a42ad01200c01446efe4ea50f8ae6fef2c174
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:7741, v8:9673
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1784279
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63546}
This is a reland of ab089c7864, after
making a flaky test more robust.
Original change's description:
> [turbofan] Prepare for moving part of CreateGraph into the background
>
> - Pass Refs, not Handles, to graph builder, and drop bytecode array argument
> (get it from SFI instead).
> - Add some fields to FeedbackVectorRef that are needed to avoid heap access
> in BytecodeGraphBuilderPhase.
> - Rename FeedbackVectorRef's SerializeSlots to Serialize, since it's more
> than just the feedback slots.
> - Rearrange the last steps in PipelineCompilationJob::PrepareJobImpl such
> that CreateGraph is last.
>
> Bug: v8:7790
> Change-Id: I4b17790d1d74da41ba63ee68e3a33968662fc398
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1781682
> Reviewed-by: Maya Lekova <mslekova@chromium.org>
> Commit-Queue: Georg Neis <neis@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#63515}
Bug: v8:7790
Change-Id: Ia6f4c1ebd82dea93c14437514d0e25b730523f75
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1781694
Reviewed-by: Georg Neis <neis@chromium.org>
Reviewed-by: Maya Lekova <mslekova@chromium.org>
Commit-Queue: Georg Neis <neis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63545}
Change-Id: I29a4d20656727e6ec1e1fd052a840bd5aefe3cd4
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1781052
Commit-Queue: Georg Neis <neis@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63544}
External string resources of length {0} have a {nullptr} data since
https://crrev.com/c/1424861.
This CL fixes allocation of an external one-byte string from such a
resource.
R=ishell@chromium.org
Bug: chromium:995108
Change-Id: Ic8ef507d808583c1b529085d990d705058953f03
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1781051
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63543}
Use the position of commas in async arrow expressions to mark the
initializer position of any parameters that might have been set in the
preceding parameter.
This extends https://chromium-review.googlesource.com/c/v8/v8/+/1710671
to async arrow heads.
Bug: v8:8510, chromium:997320
Change-Id: I98e0ac817c7f53fbf1dced98fb6891a386ee7803
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1781057
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Dan Elphick <delphick@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63542}
The implementation on wasm-bigint has been done, as far as I can tell.
There are no spec tests yet, only an out-dated copy of the original
spec tests which don't pass anymore. Therefore I disabled all the tests
for now and created a tracking bug at https://crbug.com/v8/9673.
R=adamk@chromium.org
Bug: v8:7741, v8:9673
Change-Id: I015846cc6008ad266402b6835e634723a1a076da
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1781050
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Adam Klein <adamk@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63541}
This CL adds an overloaded function PerfJitLogger::LogWriteDebugInfo
for writing JIT_DEBUG_INFO record into jitdump file. With this CL,
perf-annotate can display profiling information of JITted code with
the corresponding source code interleaved.
Change-Id: Ie1271e08b69712c81129335825467d83674d7938
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1672531
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Commit-Queue: Zhiguo Zhou <zhiguo.zhou@intel.com>
Cr-Commit-Position: refs/heads/master@{#63539}
AllocatePages (used to allocate the embedded blob's backing store
during mksnapshot) has allocation address, size, and alignment
parameters. Both address and size are expected to be aligned, but we
were only aligning size properly. This CL also aligns the address (and
adds a bunch of comments as well).
Bug: v8:9677
Change-Id: Ia739682236c74278bcaf1c9b7c9c4b3e0b0c5582
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1784277
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Simon Zünd <szuend@chromium.org>
Reviewed-by: Simon Zünd <szuend@chromium.org>
Auto-Submit: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63538}
This reverts commit 8b89a7c32d.
Reason for revert: GC Stress tests timing out.
See https://ci.chromium.org/p/v8/builders/ci/V8%20Linux%20-%20gc%20stress/24272
Original change's description:
> Update GetIterator bytecode to load and call object[Symbol.iterator]
>
> The functionality of the GetIterator bytecode introduced previously is
> now extended from loading the @@iterator property to calling the property
> as well. This change basically absorbs the functionality of additional
> two bytecodes - Star, CallProperty0 in the GetIterator bytecode.
> Importantly, this change handles the cases of eager and lazy deoptimization
> in the middle of the bytecode, i.e., lazy deopt for LdaNamedProperty and
> eager deopt of the CallProperty0 bytecode, using the continuation builtins.
> This mechanism can work as a template for the future bytecode that require
> handling such inter-bytecode deopt scenario. The tests evaluating the eager
> and lazy deopt scenarios are also included.
>
> Bug: v8:9489
> Change-Id: I93eb022bbc3d37582407820aa8482a343cac6c12
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1758313
> Commit-Queue: Swapnil Gaikwad <swapnilgaikwad@google.com>
> Reviewed-by: Leszek Swirski <leszeks@chromium.org>
> Reviewed-by: Georg Neis <neis@chromium.org>
> Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#63528}
TBR=rmcilroy@chromium.org,neis@chromium.org,leszeks@chromium.org,tebbi@chromium.org,swapnilgaikwad@google.com
Change-Id: I9ae475f71275f71f1b9e60b8bf0578e21ce2704b
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:9489
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1783736
Reviewed-by: Francis McCabe <fgm@chromium.org>
Commit-Queue: Francis McCabe <fgm@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63536}
This reverts commit 93063ade0f.
Reason for revert: Clusterfuzz found issue.
Original change's description:
> [heap] Remove size from invalidated slots
>
> Slots are always valid inside an invalidated area when outside the
> respective object's current size. This allows us to remove the size
> from the InvalidatedSlots data structure.
>
> This change was enabled by https://crrev.com/c/1771793.
>
> Bug: v8:9454
> Change-Id: I2b5a7234d47227cb6ad8d67de20e9b5a2028ae83
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1773242
> Reviewed-by: Sigurd Schneider <sigurds@chromium.org>
> Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
> Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#63510}
TBR=ulan@chromium.org,sigurds@chromium.org,tebbi@chromium.org,dinfuehr@chromium.org
# Not skipping CQ checks because original CL landed > 1 day ago.
Bug: v8:9454
Change-Id: I7daf96cf50aaedd4dbdab48fd550182df94e54bf
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1783106
Reviewed-by: Dominik Inführ <dinfuehr@chromium.org>
Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63535}
memcpy doesn't like being called with dest=nullptr and size=0.
Change-Id: Ie01991834a867991ff51287cbe43d22f636b800e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1781695
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Auto-Submit: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63529}
The functionality of the GetIterator bytecode introduced previously is
now extended from loading the @@iterator property to calling the property
as well. This change basically absorbs the functionality of additional
two bytecodes - Star, CallProperty0 in the GetIterator bytecode.
Importantly, this change handles the cases of eager and lazy deoptimization
in the middle of the bytecode, i.e., lazy deopt for LdaNamedProperty and
eager deopt of the CallProperty0 bytecode, using the continuation builtins.
This mechanism can work as a template for the future bytecode that require
handling such inter-bytecode deopt scenario. The tests evaluating the eager
and lazy deopt scenarios are also included.
Bug: v8:9489
Change-Id: I93eb022bbc3d37582407820aa8482a343cac6c12
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1758313
Commit-Queue: Swapnil Gaikwad <swapnilgaikwad@google.com>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Georg Neis <neis@chromium.org>
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63528}
This CL makes ThreadManager::InitThread *the* place that's responsible
for initializing metadata for a new thread, and ensures that all new
threads actually go through there. This was previously not the case,
and e.g. test-lockers/LockerUnlocker exposed a case where some threads
were trying to use another thread's simulator instance because the
ThreadLocalTop on the Isolate was in inconsistent state.
Change-Id: I302c643f420457f6ba73897fd45eb87969e1331c
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1781688
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Auto-Submit: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63527}
to avoid undefined behavior on signed integer overflow.
Change-Id: Ib55b427723a81dddc26f3ce4b2b3b8cc69c9c017
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1782166
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Auto-Submit: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63526}
This is a reland of d82600ecc8
Added missing builtin serializations that were breaking Clusterfuzz,
layout tests and Speedometer.
Original change's description:
> [turbofan] Serialize missing objects
>
> Added a few objects to the standard objects list, as well as specific
> builtins when the corresponding runtime calls are detected in the
> serializer. Now JSHeapCopyReducer is needed only when concurrent
> inlining is disabled.
>
> Bug: v8:7790
> Change-Id: I91d933611b0352df8ede4fded665f13669591fef
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1781053
> Reviewed-by: Georg Neis <neis@chromium.org>
> Commit-Queue: Maya Lekova <mslekova@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#63509}
Bug: v8:7790, chromium:1000136
Change-Id: I4775014bfe8100fb76f60e4088f1bdf2a8da64a2
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1781681
Commit-Queue: Maya Lekova <mslekova@chromium.org>
Reviewed-by: Georg Neis <neis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63525}
