Functional change: Allow rtts as exception values.
Additional change: Remove liftoff subtyping TODO in anticipation of
removal of full ValueType usage in Liftoff.
Bug: v8:7748
Change-Id: I676a7fa6417d6e86bb148b4f5b9b086cc704928e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2714702
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Manos Koukoutos <manoskouk@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72973}
The flag should not be set after an exception is thrown in a runtime
function. The unwinder still runs after the destructor, and should take
care of setting the flag depending on the catching frame.
R=ahaas@chromium.org,jkummerow@chromium.org
Bug: chromium:1180690
Change-Id: I0013c90f759a5145309f6e08d61ed36aeecbac63
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2713103
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Thibaud Michaud <thibaudm@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72972}
Follow-up from https://crrev.com/c/2649147/. There are still 2 usages of
_wrapper functions in the interpreter, these are slightly more annoying
to get rid of since the definitions have a ifdef for MSCV/OS_WIN.
Bug: v8:11384
Change-Id: Ic5ca860678f406e1c832c99398b235707da058f9
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2713166
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72969}
Its double methods were unused so we were using it as an ObjectData*
wrapper.
Bug: v8:7790
Change-Id: If6bd21fc23485f1e14aa3e71aea7c7821bd03315
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2715185
Reviewed-by: Georg Neis <neis@chromium.org>
Commit-Queue: Santiago Aboy Solanes <solanes@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72968}
This change adds a new abstract type Lazy<T> which can be used to
interoperate with CSA code that uses LazyNode. This new type has special
code-generation rules because its generated type is not TNode<...> but
std::function<TNode<...>()>. Torque code can do nothing with this type
except pass it around, but passing it to the CSA function RunLazy is an
easy way to execute the std::function and get back a normal value.
Torque code can also create Lazy<T> values using the intrinsic function
%MakeLazy, which takes the name of a macro as its first parameter,
followed by arguments to that macro which will be passed when the
LazyNode is evaluated. We use the macro's name because the language
doesn't support taking references to macros, and implementing such a
feature would be complicated.
Bug: v8:7793
Change-Id: I09120960e3492dd51be0d4c57e14ff3826b99262
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2701752
Commit-Queue: Seth Brenith <seth.brenith@microsoft.com>
Reviewed-by: Nico Hartmann <nicohartmann@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72964}
When making inlining decisions, we are interested in
CodeRef::inlined_bytecode_size(). Previously, we gated a check of this
value on predicate JSFunctionRef::HasAttachedOptimizedCode(), but we
removed this predicate because it only recorded a value seen at
serialization time.
Now, we look at attached CodeRefs "live," which means we might discover
that the code is now optimized, where it wasn't at serialization time.
This affects the inlining decision. This CL adds an additional check
before returning a non-zero inlined_bytecode_size that the code object
hasn't (already) been deoptimized. It's logical to do this, because the
inlined_bytecode_size is actually a stale value at this point.
Bug: chromium:1180749
Change-Id: I4d55132c5b47083413d3c6b1d934bfce6b550709
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2712565
Commit-Queue: Michael Stanton <mvstanton@chromium.org>
Reviewed-by: Georg Neis <neis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72960}
Baseline code is, like baseline frames, now considered unoptimized,
sharing this name with interpreted code.
Bug: v8:11420,v8:11429
Change-Id: If1f4a41725dd0d809a4412f5d2f827d19f9628fe
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2713102
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Auto-Submit: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72959}
After the runtime call for dynamic tiering, the instance cache is
invalidated. This was assumed to be done in {SpillAllRegisters}, but the
instance is still being accessed after that call, so the instance cache
register might still be set after the runtime call.
R=ahaas@chromium.org
Bug: chromium:1179065
Change-Id: I375e7c388e5a74789050e374db50d21c2efe27e2
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2714544
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72958}
This avoids having to check both flags in two places, and prevents
people from trying to enable WebAssembly in lite mode (which would
currently build, but you still would not get Wasm support).
The downside is that the default value shown by `gn args --list` now
sais `""` instead of `true`.
R=machenbach@chromium.org, rmcilroy@chromium.orgCC=ecmziegler@chromium.org
Bug: v8:11238
Cq-Include-Trybots: luci.v8.try:v8_linux64_no_wasm_compile_rel
Change-Id: Ib2fe6c32cbdeb89895265bb898abf7284c560cc3
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2712783
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72957}
This is a reland of ed225df70c
Reland changes: removed #if DEBUG from v8.h since it had compile errors
in chromium + windows. Also wasn't needed anyway since the method it was
calling was just a DCHECK.
Original change's description:
> [objects] Cache the ExternalString's data in its resource
>
> For external uncached strings (also called "Small External Strings")
> with cacheable resources, we can cache its resource's data at the
> string's creation time. This allows us to safely read the data from the
> background as we wouldn't trigger a data() callback.
>
> For more information regarding the investigation and possible proposals
> see
> https://docs.google.com/document/d/101eAQqFpBPWFGNJicxtdlwYShJkTOUsEuxkVVeu5Hrk/edit?usp=sharing
>
> Bug: v8:7790, v8:11463
> Change-Id: I6164092b01a6ccb525a9516f476e066b35fb1f96
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2685177
> Commit-Queue: Santiago Aboy Solanes <solanes@chromium.org>
> Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
> Reviewed-by: Leszek Swirski <leszeks@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#72862}
Bug: v8:7790
Bug: v8:11463
Change-Id: I7c8a54c814b92c8632fb0bcf5a33f57fec159443
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2710440
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Santiago Aboy Solanes <solanes@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72956}
AbstractBytecodeArray was introduced in order to let the bytecode
array accessor work on either a Handle<BytecodeArray> or a serialized
BytecodeArrayRef. We have since implemented direct heap access for
bytecode arrays, so we can now remove the abstraction again.
Note that this means that as far as bytecode iteration is concerned
we no longer access the bytecode array through the BytecodeArrayRef.
I will remove the obsolete methods from that class in a follow-up CL.
The downside is the loss of this explicit interface. The upside is
simplicity and less code. We can justify the downside with the fact
that the bytecode array data is immutable and thus the Ref indirection
less meaningful than in other cases.
Bug: v8:7790
Change-Id: I0fe87b4efd0f77785f5a0917ab213c6031d9cc74
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2707166
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Georg Neis <neis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72955}
This CL is part of a series that adds the C++ implementation of
SwissNameDictionary, a deterministic property backing store based on
Swiss Tables.
This CL adds printing and verification functions.
Bug: v8:11388
Change-Id: I6af8672f19589f5693ebafbcafb8d59b26749eef
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2704669
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@{#72954}
.. which can return Undefined if reading out of bounds, so the return
type is ObjectRef and not StringRef (if we had torque-like union types
it'd be StringRef|OddballRef). Also change the function name to
GetCharAsStringOrUndefined.
Bug: v8:7790,chromium:1181246
Change-Id: Icf9e8fd03d11c3936e87a509b9117e547972d283
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2712965
Reviewed-by: Georg Neis <neis@chromium.org>
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72952}
If two call instructions were generated right after each other, the
source position table could get populated with two entries for the same
PC (triggered by the follow-up CL: https://crrev.com/c/2697359).
This CL fixes that by slightly changing the carry-over of source
positions from nodes to instructions.
The call node which has a source position attached generates two
instructions:
18: gap () ([rax|R|tp] = v16(-); [rbx|R|t] = v17(-);)
[rax|R|t] = ArchCallWasmFunction [immediate:4] #-1 [rax|R|tp] [rbx|R|t] [immediate:5]
19: gap () ()
ArchJmp [immediate:6]
Those are then reversed, and the source position is attached to the first
one (the ArchJmp). After reversing it again later, the source position
will be set to the pc *after* the call instruction, which in the example
happened to be just another call instruction which already had a source
position, resulting in this code:
[...]
0x388ee467d426 66 e875feffff call 0x388ee467d2a0 ;; wasm stub: WasmThrow
0x388ee467d42b 6b e850feffff call 0x388ee467d280 ;; wasm stub: WasmStackGuard
[...]
Source positions:
pc offset position
6b 5
6b 0
By attaching the source position to the *last* instruction (after
reversing), we ensure that it will be generated for an instruction
*before* the call, or the call itself if this is the first instruction
emitted for that node.
R=jgruber@chromium.org
Bug: v8:11490, v8:11496
Change-Id: Ie95c87d0d9daea56ca14a811abcd02ac07a4cf84
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2697358
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72951}
maintain hash table invariants (that equality implies matching hashes),
the CodeEntry hash shouldn't include the tag either.
CodeEntry: :IsSameFunctionAs does not consider the CodeEntry's tag, so to
Change-Id: I1e06707b72d49ad9e88368ae68e7ccb16c2483ca
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2712786
Auto-Submit: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72949}
Also fixes existing tests which were asserting the wrong behavior (that
setting writable=false won't have an effect).
The bug was introduced by https://chromium-review.googlesource.com/c/v8/v8/+/1442640 .
Bug: chromium:1158138
Change-Id: I2d85721848eb4e7d530a980a9ecef7f8693bb9a2
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2691050
Commit-Queue: Marja Hölttä <marja@chromium.org>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72948}
The main thread isolate may live until the end of the process, in which
case we would not record the counts. Sample at each event instead.
R=ahaas@chromium.org
Bug: v8:8091
Change-Id: I5b1eb023e4ca5410c7d8f4212ff20410044bf4f2
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2710433
Commit-Queue: Thibaud Michaud <thibaudm@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72947}
The v8_enable_webassembly=false configuration will not be a able to run
any wasm code, hence remove the whole asm to wasm translation from the
binary.
In order to skip specific unit tests in that configuration, we move the
definition of the v8_enable_webassembly gn argument from BUILD.gn to
v8.gni, such that it is available in all gn files.
R=ecmziegler@chromium.org, machenbach@chromium.org
Bug: v8:11238
Change-Id: Id4e290df3e42ffd2f05c377bdd3a368871815daf
Cq-Include-Trybots: luci.v8.try:v8_linux64_no_wasm_compile_rel
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2712562
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Emanuel Ziegler <ecmziegler@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72945}
Since gtest_prod.h is in a test-only build target, that target cannot be
a dependency of non-test build targets. To prevent gn check errors
warning about, this add "// nogncheck" to any includes.
Bug: v8:7330
Change-Id: I40de6983e30234de2a778780a9ca839aee0bc8ee
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2712747
Auto-Submit: Dan Elphick <delphick@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72943}
This moves all tests that construct a wasm module (and load
wasm-module-builder.js) from test/regress to the test/regress/wasm
directory. This will make it easier to skip them all in the
v8_enable_webassembly=false configuration.
R=ahaas@chromium.org
Bug: v8:11238
Change-Id: Ib22b0fb40a58f213182e68b78b34041651c436d1
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2712243
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72942}
The experimental engine struggles to compile this large pattern.
Change-Id: I0abd5c7ed9f6f62b1c18b5c3dc1cb6a25e130c53
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2712754
Auto-Submit: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72941}
This CL is part of a series that adds the C++ implementation of
SwissNameDictionary, a deterministic property backing store based on
Swiss Tables.
This CL add the lookup and iteration functions as well as the helpers
needed for that.
Bug: v8:11388
Change-Id: Ib684f32d1623868f9caf79c48fc61478d6f6ee4b
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2695391
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Marja Hölttä <marja@chromium.org>
Commit-Queue: Frank Emrich <emrich@google.com>
Cr-Commit-Position: refs/heads/master@{#72940}
Load lanes require that dst == src1 when AVX is not supported, add that
constraint to the instruction selector. For Liftoff, we change the macro
defintions of Movlps and Movhps to do the move if dst != src1.
Bug: v8:10975
Change-Id: Ic4f499845f0728db250ea23b1b053e0a9fbe99b5
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2708825
Reviewed-by: Bill Budge <bbudge@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72936}
This reverts commit 0818d13807.
Reason for revert: Rolling back to previous greedy slot allocator.
tbr=ahaas@chromium.org
Original change's description:
> [compiler][wasm] Fix Wasm linkage
>
> - Fixes a problem when constructing Wasm CallDescriptors, where the
> allocation tries to treat parameters and returns as if they are in the
> same frame. This doesn't work when slots may be aligned in their
> frame. Instead, allocate parameters and returns separately and offset
> return slots by the number of parameter slots.
> - Adds argument slot padding in the CallDescriptor lowering case, to
> prepare for when 32 bit targets align stack frames and require
> padding.
> - Adds a regression test.
>
> Bug: chromium:1174500
> Change-Id: I60d96a94b171a0d27ff61cbab35623976b0c6da8
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2683024
> Commit-Queue: Bill Budge <bbudge@chromium.org>
> Reviewed-by: Andreas Haas <ahaas@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#72588}
Bug: chromium:1174500
Change-Id: I1d1c389acde43bd56e6d2a27e1a3eb8ea4d6073c
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2713206
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Reviewed-by: Bill Budge <bbudge@chromium.org>
Commit-Queue: Bill Budge <bbudge@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72934}
This is essentially a revert of 3 commits:
- a1d39bbaed
- 5a0938e593
- 74362ae3e2
with merge conflicts fixed.
These instructions were not merged into the SIMD proposal.
Bug: v8:11297
Change-Id: Ifffe7c61cae10fadc345d0faa1b0ba45ce74e946
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2704950
Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72933}
This reverts commit 8cf4eec7d8.
Reason for revert: Rolling back to previous greedy slot allocator.
tbr=neis@chromium.org,jgruber@chromium.org
Original change's description:
> [codegen][frames] Generalize argument padding slot code
>
> - Removes kPadArguments boolean.
> - Changes ShouldPadArguments to ArgumentPaddingSlots to reflect
> that on some architectures more than 1 padding slot may be needed.
> - Adds AddArgumentPaddingSlots and ShouldPadArguments convenience
> functions.
>
> Bug: v8:9198
>
> Change-Id: Iba87518e071a75fb951b490d3f75a87ca715cc23
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2679109
> Commit-Queue: Bill Budge <bbudge@chromium.org>
> Reviewed-by: Georg Neis <neis@chromium.org>
> Reviewed-by: Jakob Gruber <jgruber@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#72605}
Bug: v8:9198
Change-Id: Ie93d32d4b93c67840e4792acb017f28a826bd030
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2713205
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Reviewed-by: Bill Budge <bbudge@chromium.org>
Commit-Queue: Bill Budge <bbudge@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72931}
This reverts commit b18bc2217b.
Reason for revert: Rolling back to previous greedy slot allocator.
tbr=jgruber@chromium.org
Original change's description:
> [compiler][linkage] No allocation of slots after aligning a frame
>
> - Adds DCHECKs to make sure no stack slots are allocated after
> aligning a frame.
> - Changes Arm64 CodeGenerator::FinishFrame to align the frame after
> allocating callee-saved registers, and relaxes the constraints on
> the number of callee-saved registers.
>
> Bug: v8:9198
> Change-Id: Iacb0518b57fa3ea2ff801eda69719f4c32733850
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2694104
> Reviewed-by: Jakob Gruber <jgruber@chromium.org>
> Commit-Queue: Bill Budge <bbudge@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#72781}
Bug: v8:9198
Change-Id: I53f415b7b0f73b57db24859d1199c6a44f911035
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2713204
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Reviewed-by: Bill Budge <bbudge@chromium.org>
Commit-Queue: Bill Budge <bbudge@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72930}
This reverts commit 0ef2eea74c.
Reason for revert: broke noavx https://ci.chromium.org/ui/p/v8/builders/ci/V8%20Linux%20-%20debug/34035/overview
Original change's description:
> [wasm-simd][ia32] Optimize some signed integer widening sequences
>
> Optimize ia32 code sequences. This is the same sequences as x64, which
> have been optimized based on supported extensions.
>
> Bug: v8:11464
> Change-Id: I10396a928a431cdd2de9b22bb8a395bc0adb4694
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2704897
> Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
> Commit-Queue: Zhi An Ng <zhin@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#72926}
Bug: v8:11464
Change-Id: Ibeaf35b5f6aa75d10e24f1fb57843dbc0791d37a
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2713208
Auto-Submit: Zhi An Ng <zhin@chromium.org>
Reviewed-by: Bill Budge <bbudge@chromium.org>
Commit-Queue: Bill Budge <bbudge@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72929}
Port 8136e39997
Original Commit Message:
Extract code sequence into macro-assembler for reuse between Liftoff and
TurboFan.
Small tweaks to macro-assembler functions Pmaddwd and Pmaddubsw to move
src1 to dst on SSE when src != dst. TurboFan codegen won't be affected
by this since it sets the right restrictions in instruction-selector.
R=zhin@chromium.org, joransiu@ca.ibm.com, junyan@redhat.com, midawson@redhat.com
BUG=
LOG=N
Change-Id: Idaff4944dbb1ec5e6d7e798b6255a90744155006
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2713842
Reviewed-by: Junliang Yan <junyan@redhat.com>
Commit-Queue: Milad Fa <mfarazma@redhat.com>
Cr-Commit-Position: refs/heads/master@{#72928}
Optimize ia32 code sequences. This is the same sequences as x64, which
have been optimized based on supported extensions.
Bug: v8:11464
Change-Id: I10396a928a431cdd2de9b22bb8a395bc0adb4694
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2704897
Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72926}
Extract code sequence into macro-assembler for reuse between Liftoff and
TurboFan.
Similar to x64, there is a bit of register-aliasing checking due to the
rather strict requirements for the code sequence depending on the
CpuFetures that are supported.
Bug: v8:11415
Change-Id: I3f855da25493941d158383020fbcafee8d18095f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2698066
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72925}
