For dictionary mode objects, whether or not a property is constant was
not tracked before. This CL makes the required non-Turbofan changes,
guarded behind the new flag V8_DICT_PROPERTY_CONST_TRACKING.
In addition, prototypes are not converted to fast mode objects if this
flags is enabled.
Bug: v8:11247
Change-Id: Ia5942733239a97560b6efc015f0e25a35fea3d7a
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2566757
Commit-Queue: Frank Emrich <emrich@google.com>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Marja Hölttä <marja@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72524}
Creating a PatchingAssembler has significant overhead, including a
dynamic allocation for the assembler buffer implementation. In the case
of {Assembler::bind} we just need it to overwrite a machine word. Hence
avoid creating the PatchingAssembler for this trivial work and just use
Memcpy directly.
R=jkummerow@chromium.org
Change-Id: I83510cfd7ebdb0d0c378df548b442eabf3727aeb
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2668827
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72523}
... and mark it as never-serialized wrt turbofan serialization.
Until this CL, the JSRegExp type was used as both for plain
user-visible regexp objects, and for internal regexp boilerplate
descriptions. Boilerplates are special: they are never exposed to the
user, they are only referenced from the feedback vector, they are
immutable.
To clarify this distinction, this CL introduces a dedicated struct
type RegExpBoilerplateDescription to hold the regexp boilerplate
description.
This makes Turbofan serialization simpler: boilerplates can be
accessed through direct reads since they are immutable. TF has no
special requirements on JSRegExp objects (it never reads into these
objects) and thus serializing only the references as a JSObjectRef is
fine.
Bug: v8:7790
Change-Id: I33b337fcfcf861a02bc6be6d0c6311d07cf05718
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2656257
Reviewed-by: Mythri Alle <mythria@chromium.org>
Reviewed-by: Nico Hartmann <nicohartmann@chromium.org>
Reviewed-by: Dominik Inführ <dinfuehr@chromium.org>
Reviewed-by: Georg Neis <neis@chromium.org>
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72522}
Rolling v8/base/trace_event/common: 9b27757..71cb2ac
Rolling v8/build: dc9dc45..10e5511
Rolling v8/third_party/aemu-linux-x64: _nJMIPzu-ykpL-XPjf14IZ3CAFT3iQRtsbzyiSm9u7QC..daCtImfwROvNf-7jcpyqZ6KMCGlIQv9BROkyXnulGioC
Rolling v8/third_party/catapult: https://chromium.googlesource.com/catapult/+log/4920147..5c5a297
Rolling v8/third_party/depot_tools: 8c95595..6dc9cc3
Rolling v8/third_party/icu: f4147b2..70dd9a6
Rolling v8/third_party/instrumented_libraries: 4d38670..0964a78
Rolling v8/tools/clang: ec98581..4ee065aTBR=machenbach@chromium.org,tmrts@chromium.org,v8-waterfall-sheriff@grotations.appspotmail.com
Change-Id: I0ae82b75d2cf91fbbde2cb242fd49fa3493bbede
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2674325
Reviewed-by: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Commit-Queue: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#72519}
Load lane instructions also need a v128 input.
Bug: chromium:1173488
Change-Id: I45e4c4f8fc93a5b3246ac4d1b07925b41cbe3e89
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2673275
Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72517}
Port 8798b3ef4e
Port 1d3c80d303
Original Commit Message:
- Fixes some incorrect assumptions about padding in the
code generation. Slots may have apparent extra padding
when allocation fragments go unused.
- Reworks 32 bit push code to simplify skipping slot gaps
when 'push' instructions are used.
- Adds a ElementSizeInPointers function on machine
representations.
R=bbudge@chromium.org, joransiu@ca.ibm.com, junyan@redhat.com, midawson@redhat.com
BUG=
LOG=N
Change-Id: I076ae8396434610c52fed040ace5e0f49ea3ef88
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2673142
Commit-Queue: Milad Fa <mfarazma@redhat.com>
Reviewed-by: Junliang Yan <junyan@redhat.com>
Cr-Commit-Position: refs/heads/master@{#72516}
- Stack adjustment was in slots, when it should be in bytes.
Bug: v8:11391
Change-Id: Ia791f2b637337279be62d66377f9b5be35f31839
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2674062
Reviewed-by: Zhi An Ng <zhin@chromium.org>
Commit-Queue: Bill Budge <bbudge@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72515}
These didn't have the right suffix (i32 instead of i32x4).
Also, names are longer now, so when tracing them, give the names column
more space.
Bug: v8:11384
Change-Id: Id11e0d23b344310121ae4e2e5910528cab2d6f73
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2673264
Reviewed-by: Bill Budge <bbudge@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72514}
This reverts commit 64471ba93d.
Reason for revert: Fails on nosse3/nosse4 https://ci.chromium.org/ui/p/v8/builders/ci/V8%20Linux/40643/overview
Original change's description:
> [wasm-simd] Update spec tests
>
> We can also unmark some SIMD tests as failed since we are now inline
> with spec.
>
> Bug: v8:11331
> Change-Id: I4b98ae068008c55535dbbbf0312a55aa03e7e83d
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2668060
> Reviewed-by: Andreas Haas <ahaas@chromium.org>
> Commit-Queue: Zhi An Ng <zhin@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#72507}
TBR=ahaas@chromium.org,zhin@chromium.org
Change-Id: I11a6670e42956bdcc66c371d2d852623030948b4
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:11331
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2673265
Reviewed-by: Zhi An Ng <zhin@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72512}
There is a bug in the top-level await spec draft such that async
strongly connected components are not always evaluated before their
depending modules.
See https://github.com/tc39/proposal-top-level-await/pull/161 for full
discussion and spec fix.
Bug: v8:11376
Change-Id: I88bf06afb2e9a5d8d0b757de8276f1d1242a875e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2667772
Reviewed-by: Adam Klein <adamk@chromium.org>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Commit-Queue: Shu-yu Guo <syg@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72508}
We can also unmark some SIMD tests as failed since we are now inline
with spec.
Bug: v8:11331
Change-Id: I4b98ae068008c55535dbbbf0312a55aa03e7e83d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2668060
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72507}
This is a reland of 352b9ecbdb
The test/fix CL has been merged in, as the fixes to return slot
accounting are needed to fix Arm64 issues turned up by the fuzzers:
https://chromium-review.googlesource.com/c/v8/v8/+/2644139
Original change's description:
> Reland "Reland "[compiler][wasm] Align Frame slots to value size""
>
> This is a reland of 1694925c72
>
> Minor fix to linkage for constexpr.
>
> TBR=ahaas@chromium.org,neis@chromium.org
>
> Original change's description:
> > Reland "[compiler][wasm] Align Frame slots to value size"
> >
> > This is a reland of cddaf66c37
> >
> > Original change's description:
> > > [compiler][wasm] Align Frame slots to value size
> > >
> > > - Adds an AlignedSlotAllocator class and tests, to unify slot
> > > allocation. This attempts to use alignment holes for smaller
> > > values.
> > > - Reworks Frame to use the new allocator for stack slots.
> > > - Reworks LinkageAllocator to use the new allocator for stack
> > > slots and for ARMv7 FP register aliasing.
> > > - Fixes the RegisterAllocator to align spill slots.
> > > - Fixes InstructionSelector to align spill slots.
> > >
> > > Bug: v8:9198
> > >
> > > Change-Id: Ida148db428be89ef95de748ec5fc0e7b0358f523
> > > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2512840
> > > Commit-Queue: Bill Budge <bbudge@chromium.org>
> > > Reviewed-by: Georg Neis <neis@chromium.org>
> > > Reviewed-by: Andreas Haas <ahaas@chromium.org>
> > > Cr-Commit-Position: refs/heads/master@{#71644}
> >
> > Bug: v8:9198
> > Change-Id: Ib91fa6746370c38496706341e12d05c7bf999389
> > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2633390
> > Commit-Queue: Bill Budge <bbudge@chromium.org>
> > Reviewed-by: Andreas Haas <ahaas@chromium.org>
> > Reviewed-by: Georg Neis <neis@chromium.org>
> > Cr-Commit-Position: refs/heads/master@{#72195}
>
> Bug: v8:9198
> Change-Id: I91e02b823af8ec925dacf075388fb22e3eeb3384
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2640890
> Reviewed-by: Bill Budge <bbudge@chromium.org>
> Commit-Queue: Bill Budge <bbudge@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#72209}
Bug: v8:9198
Change-Id: I8258f87463f66417c7028b9a1fed4b9b6d82a3be
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2669892
Reviewed-by: Georg Neis <neis@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Bill Budge <bbudge@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72506}
OSR compilations happen on main thread and the functions that are called
from would have been already optimized. Also this code is only used for
this invocation. So to limit the amount of time spent on main thread
we could do a quick Turboprop compilation instead of a highly optimized
TurboFan compilaiton.
Change-Id: Ifcdcb5c855d8a9a56b13c1940b4ee0ed3bfb4d67
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2659257
Commit-Queue: Mythri Alle <mythria@chromium.org>
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72505}
Adds testing API that can only be used after enabling it on a heap.
The call that enables testing is only provided via v8_for_testing or
cppgc_for_testing build targets which protects against misusing from
production code.
Change-Id: I24a8f5543a2bb479481384e2c555d231383e5d12
Bug: chromium:1056170
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2667513
Reviewed-by: Hannes Payer <hpayer@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Omer Katz <omerkatz@chromium.org>
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72503}
- Fixes some incorrect assumptions about padding in the
code generation. Slots may have apparent extra padding
when allocation fragments go unused.
- Reworks 32 bit push code to simplify skipping slot gaps
when 'push' instructions are used.
- Adds a ElementSizeInPointers function on machine
representations.
Bug: chromium:1171759,v8:9198
Change-Id: I029e300fa9c306d7e35344576fd1c68857cf2bca
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2660379
Commit-Queue: Bill Budge <bbudge@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Georg Neis <neis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72502}
IsAnyInitialArrayPrototype doesn't need an handlified input argument
as it doesn't cause GC.
This improves performance of MapData::MapData as canonical handle scope
creation is expensive.
Change-Id: I2e1a46354276857b64867ea3e994356faef8950e
Bug: v8:9684
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2671659
Commit-Queue: Sathya Gunasekaran <gsathya@chromium.org>
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72500}
When generating getters, Torque needs to decide whether to perform a
normal or relaxed load. Thus far, it has used the somewhat non-obvious
logic that any indexed field with tagged non-smi data gets relaxed
loads. This change adds a new annotation @relaxedRead to be consistent
with the existing @relaxedWrite annotation. I added @relaxedRead
annotations on any field that previously had this automatic behavior and
whose getter is called, except for those in ScopeInfo because I'm
relatively confident that it doesn't need relaxed access.
Bug: v8:7793
Change-Id: I9987eea13760b967f1b8a3189b69742e55140c30
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2600113
Commit-Queue: Seth Brenith <seth.brenith@microsoft.com>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Nico Hartmann <nicohartmann@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72499}
Also access the DescriptorArray through GetPropertyKey concurrently if
the FLAG_turbo_direct_heap_access is on.
Bug: v8:7790
Change-Id: I29e5895fefc3653f954ba56aa85218121402e7ed
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2653232
Reviewed-by: Georg Neis <neis@chromium.org>
Commit-Queue: Santiago Aboy Solanes <solanes@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72497}
Port 45b99aaa58
Original Commit Message:
In https://crrev.com/c/2645694 we push the full q registers before lazy
compile, but we did not change the fixed frame size to account for the
wider registers being pushed.
This manifested in the frame having data like:
(gdb) x/10xg start.ptr_
0x7f5576ff3eb0: 0x0000000000000000 0x0000336b08202759
0x7f5576ff3ec0: 0x7ff000007f801000 0x0000000000000000
0x7f5576ff3ed0: 0x7ff000007f801001 0x0000000000000000
0x7f5576ff3ee0: 0x7ff000007f801002 0x0000000000000000
0x7f5576ff3ef0: 0x7ff000007f801003 0x0000000000000000
The GC then walks part of this frame, thinking that 0x7ff000007f801003
is a heap object, and then crashes.
Add some static_asserts (similar to builtins-x64) to remind ourselves
that the pushed registers have to match the size in frame constants.
R=zhin@chromium.org, joransiu@ca.ibm.com, junyan@redhat.com, midawson@redhat.com
BUG=
LOG=N
Change-Id: I994f1b7fecbb24ea97d846b1eed98201bc3b08ad
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2669308
Reviewed-by: Junliang Yan <junyan@redhat.com>
Commit-Queue: Milad Fa <mfarazma@redhat.com>
Cr-Commit-Position: refs/heads/master@{#72496}
Code sequence from https://github.com/WebAssembly/simd/pull/379, and
exactly the same as x64, with minor tweaks for
ExternalReferenceAsOperand.
Bug: v8:11002
Change-Id: Icbfdac62b21c2734ad4886b3d48f34e29f7a8222
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2664860
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72495}
V8 uses the same set of fp param registers as Simd param registers.
As these registers are two different sets on ppc we must make
sure to also save them when Simd is enabled.
Check the comments under crrev.com/c/2645694 for more details.
Port 3b302d5cfe
Original Commit Message:
If a lazy compilation happens in between 2 Wasm calls, we need to save
the full Q register, since we can have live v128 values.
R=zhin@chromium.org, joransiu@ca.ibm.com, junyan@redhat.com, midawson@redhat.com
BUG=
LOG=N
Change-Id: Icdd0a6d38225a866b61651ff406598c144c25ebf
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2667952
Reviewed-by: Junliang Yan <junyan@redhat.com>
Commit-Queue: Milad Fa <mfarazma@redhat.com>
Cr-Commit-Position: refs/heads/master@{#72492}
We were hitting an implementation defined behavior in this instruction:
- v is clamped to uint8_t::min and uint8_t::max
- then we static_cast<int8_t>(v)
- any values that don't fit in int8_t (> 127) hits and implementation
defined behavior
We reuse base::saturated_cast here instead to avoid this undefined
behavior.
Drive-by cleanup of test cases to make the signed/unsigned cases more
explicity.
Bug: v8:11372
Change-Id: I4e92cdfb685d74bd5436ba25f1c00db49a231221
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2659501
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Reviewed-by: Adam Klein <adamk@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72491}
This is a partial revert of https://crrev.com/c/2457669 to add back
i64x2.ne and i64x2.all_true, which were accepted into the proposal
(https://github.com/WebAssembly/simd/issues/419).
This only implements it for x64 and arm64 on TurboFan, other archs and
Liftoff will come later.
Bug: v8:11347,v8:11348
Change-Id: I86934478760e3d501ecdb3ce6c9b702764cc0838
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2665005
Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
Reviewed-by: Georg Neis <neis@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72489}
Previously the WebAssembly debugger support completely ignored the
condition on breakpoints. With this change, we check conditions
(snippets of JavaScript) properly, which enables not only conditional
breakpoints in the front-end, but also other features like 'Never pause
here' (which simply sets `false` as condition) and log points.
Fixed: chromium:1173007
Bug: chromium:1173006
Change-Id: I02c740d383378a1f4cc08134ad571bea08e9a905
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2666690
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72485}
We are often stepping multiple times without inspecting the state
in-between. Hence, the generated debug side table is often not being
used. Instead of always generating it, we can generate it lazily on
demand, which can avoid the need to generate it at all.
R=thibaudm@chromium.org
TEST=inspector/debugger/wasm-stepping
Bug: chromium:1172299
Change-Id: I9b9ff4485d65d720d23585856b3d672925460667
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2664446
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Reviewed-by: Thibaud Michaud <thibaudm@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72484}
When constant-folding the test based on static types in the function
body decoder, we have to ensure Liftoff's value stack is properly
updated.
Fixed: chromium:1172912
Change-Id: I618992608882b850a8a4bce0b267ce456e4c2a40
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2664447
Reviewed-by: Manos Koukoutos <manoskouk@chromium.org>
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Auto-Submit: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72482}
Add a simple backtrace/bt command to the simulator debugger, which does
the frame-pointer stack walk and dumps pc/fp/sp for each frame.
This is strictly less powerful than the full JS stack dump, but can be
used to debug issues with corrupted frames that prevent the JS stack
dumper from working correctly.
Change-Id: I26cc962ab8d22c0a219d6a35548544602aa89418
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2666688
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Dan Elphick <delphick@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72480}
Extract out the command processing from Simulator::Debug(), and expose
it to gdb as a new 'sim' command. Example usage:
(gdb) sim p x15
(gdb) sim stack
The sim command will execute that one command, and will return to gdb.
For a list of all commands, you can call
(gdb) sim help
Note that sim won't resume simulator execution until gdb continues
execution; for example, `sim next` will set a breakpoint on the next
instruction, and will return to gdb. The user then has to continue
execution in gdb, at which point the simulator will break. The user can
then re-enter gdb with the gdb command. This will look like this:
(gdb) sim next
(gdb) continue
...
sim> gdb
(gdb) ...
Change-Id: I678e71e2642d8427950b5f7ed65890ceae69e18d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2664448
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Dan Elphick <delphick@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72479}
Conditional breakpoints are not implemented yet; the condition is just
ignored for wasm. This CL adds a test for conditional breakpoints. The
output is expected to change once the implementation is finished.
R=bmeurer@chromium.org
Bug: chromium:1173007
Change-Id: I15e0053ec8b57e28b8eadc208f35bbf70437682e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2666692
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72478}
Changes:
- Rename ObjectReferenceKnowledgs::object_must_be_data_ref to
reference_kind, introduce an enum to describe it.
- In both compilers, remove the dynamic check whether the object is an
array/struct. This is known statically. Instead, if we are checking
for a function, just check for rtt equality and exit.
- Remove is_data_ref_type(), replace it in the compilers with calls to
has_signature().
- Restructure AllocateSubRtt() to handle function rtts properly.
- Add a couple execution tests.
Bug: v8:7748
Change-Id: I46fbbfe2f2a7d29b583de0d536d71c534b98322f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2661460
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Manos Koukoutos <manoskouk@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72477}
The removed flags are:
1. --turbo-nci-as-midtier
2. --turbo-nci-cache-ageing
3. --turbo-nci-delayed-codegen
Flag 1. was used by a testing mode that is no longer used. Flags 2. and
3. were used to experiment with codegen and cacheing heuristics, no
longer needed now that work is suspended.
Bug: v8:8888
Change-Id: Ib4a89f09340c2d94ee7688928c8235276c1f1032
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2661461
Auto-Submit: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Mythri Alle <mythria@chromium.org>
Reviewed-by: Mythri Alle <mythria@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72476}
Optional chain checks check if the object is null or undefined and
if it is we don't perform the load but just load accumulator with
undefined. For calls the value of the accumulator needs to be stored
in the callee register. We were doing this only when the object
isn't null or undefined. This cl fixes it by storing it to callee
always.
Bug: chromium:1171954
Change-Id: I391af18e783486fed70be561027bd8aba97b93cc
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2665466
Commit-Queue: Mythri Alle <mythria@chromium.org>
Reviewed-by: Shu-yu Guo <syg@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72475}
