The compilation logic never used the saved FeedbackVector for Script
compiles when looking up the CompilationCache, so remove it and
simplify the return value of LookupScript to be a
MaybeHandle<SharedFunctionInfo>
Change-Id: Ib1d833f997b299e2e79621bd8509bdfd911d4e10
Reviewed-on: https://chromium-review.googlesource.com/924002
Commit-Queue: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Michael Stanton <mvstanton@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51443}
This is a first testing CL to add tests for mjsunit assertions to the
message tests.
R=clemensh@chromium.org
Bug: v8:7310
Change-Id: Ibbeafebb116f9608c70687f141986ab4534c6b2a
Reviewed-on: https://chromium-review.googlesource.com/803555
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51441}
They were disabled for some reason, but they are working, so reenable
them.
R=titzer@chromium.org
Change-Id: I24cab05d01060b9eae3d6191a978cdb04daf626b
Reviewed-on: https://chromium-review.googlesource.com/928648
Reviewed-by: Ben Titzer <titzer@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51440}
Unifies GetSharedFunctionForStreamedScript with GetSharedFunctionForScript
so that both share a more similar API and some common code can be moved to
common helpers.
Introduces a Compiler::ScriptDetails struct to hold script meta-data
used to build new script objects.
BUG=v8:5203
Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng
Change-Id: I3e6b4cd50da9bb92ef5a2bfd666a09b3619c34a4
Reviewed-on: https://chromium-review.googlesource.com/924189
Commit-Queue: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51438}
x86, arm, arm64: no change in behavior
mips, mips64: disasm-mips(64).cc grows an UNREACHABLE that's
maybe optimistic (but if it's not true, then that
looks like a current unintentional fallthrough at
that spot)
test-js-typed-lowering.cc: looks like a clear bug, but test-only code
Follow-up to https://chromium-review.googlesource.com/c/v8/v8/+/911731 which
did this for x64.
Doesn't turn on the warning yet.
Bug: chromium:812686
Change-Id: I7dd79c9885c90f41dd7e3a595256a954ab0ae643
Reviewed-on: https://chromium-review.googlesource.com/923528
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Ben Titzer <titzer@chromium.org>
Commit-Queue: Nico Weber <thakis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51437}
This is a step towards off-heap (and eventually isolate-independent)
builtins.
Off-heap code cannot use the standard CallStub/CallRuntime mechanisms,
since they directly embed the callee code object pointer within the
caller. There are two main issues with that: 1. the callee may be
moved by GC, and 2. the pc-relative addressing we currently use breaks
(i.e. ends up pointing to a random spot on the heap) when moving the
caller off-heap.
This CL addresses that by introducing a constants list stored on the
roots array. Instead of embedding code targets, we now have the option
of loading them from constants list. The code sequence is:
REX.W movq rax,[r13+0x4a0] // Load the constants cache.
REX.W movq rdx,[rax+0xf] // From there, load the code target.
...
REX.W addq rdx,0x5f // Add instruction_start.
call rdx
There's no visible performance impact on the web tooling benchmark.
This list will later be extended to also contain other constants such
as Strings.
Bug: v8:6666
Change-Id: Ifcf67d1f682804ba0b6d3d0383216e16575b6bf5
Reviewed-on: https://chromium-review.googlesource.com/923729
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51434}
This CL changes the WASM implementation to access indirect function
tables through the WasmContext, whereas previously indirect function
tables and their sizes were constants that were inlined into compiled
into code, requiring code patching. This is a necessary step for sharing
code between instances and eventually, isolates.
R=clemensh@chromium.org,mstarzinger@chromium.org
Bug: v8:7424
Change-Id: Ida4138ed92729730dfbc0a81a84d8484b233d808
Reviewed-on: https://chromium-review.googlesource.com/895683
Commit-Queue: Ben Titzer <titzer@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51427}
This CL also adds speculation to all Math builtins,
and refactors the JSCallReducer.
Bug: v8:7250, v8:7240
Change-Id: Icdaddb767e875bb191939d907f65c7a8dcf79b8b
Reviewed-on: https://chromium-review.googlesource.com/873916
Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51426}
Add support for CSDB in the 32-bit assembler, disassembler and simulator.
Change-Id: I0e5432e4d219dd4699d5f9b7f911791acc87114c
Reviewed-on: https://chromium-review.googlesource.com/928522
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Commit-Queue: Martyn Capewell <martyn.capewell@arm.com>
Cr-Commit-Position: refs/heads/master@{#51425}
Add support for CSDB, equivalent to HINT #20, in the system instruction space.
Additionally, relax the "unallocated" identification of hint instructions that
we don't support, such that they'll now disassemble as "unimplemented (System)"
rather than "unallocated".
Change-Id: Ia36d13fe17a98edb872f234e7cdda33d033618e8
Reviewed-on: https://chromium-review.googlesource.com/926806
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Commit-Queue: Martyn Capewell <martyn.capewell@arm.com>
Cr-Commit-Position: refs/heads/master@{#51420}
This adds a frame state for the call to the executor in inlined promise
constructors. We provide a continuation function in case of deopts which
just returns the created promise. This is not totally correct yet: if
the executor function also throws, we need to catch it and call the
reject function instead.
We also still need to add a frame state for the isCallable check on the
executor, so that the stack is correct for the thrown TypeError.
Bug: v8:7253
Change-Id: I3ee042ec82f1a9a35d59e576f6c8efe9bc98698c
Reviewed-on: https://chromium-review.googlesource.com/926523
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Commit-Queue: Peter Marshall <petermarshall@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51417}
We don't use parser caches anymore and request code caches
explicitly using ScriptCompiler::CreateCodeCache. Hence
removing the support for both parser cache and code cache options.
They are still retained in CompileOptions for backwards
compatibility. Apart from the api.cc, no other part should see
this option.
Bug: chromium:779254, chromium:783124
Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng
Change-Id: Ic8ad9afe3fa44bbb5adc71bdde59c0b4057a523d
Reviewed-on: https://chromium-review.googlesource.com/916261
Commit-Queue: Mythri Alle <mythria@chromium.org>
Reviewed-by: Adam Klein <adamk@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Marja Hölttä <marja@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51416}
Too many files know how to deal with decoding, counting, and splitting UTF-8
into uc16 chars. This consolidates several callers who deal with full
(Vector<char>, not streaming) bytes by using a UTF-8 Iterator to decode bytes
into individual uc16 chars.
R=marja@chromium.org
Bug:
Change-Id: Ia36df3e8c1abd0398415ad23a474557c71c19a01
Reviewed-on: https://chromium-review.googlesource.com/831093
Reviewed-by: Marja Hölttä <marja@chromium.org>
Commit-Queue: Justin Ridgewell <jridgewell@google.com>
Cr-Commit-Position: refs/heads/master@{#51405}
Without processing the input, a phi node can be flagged as unused and
replaced with {Dead}, although it is used by a {DeadValue} node.
Bug: chromium:808472
Change-Id: I7446883535b34770e31e4e26e1c242eb05673a91
Reviewed-on: https://chromium-review.googlesource.com/919362
Commit-Queue: Tobias Tebbi <tebbi@chromium.org>
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51395}
Each DOM node has the corresponding V8 wrapper object. This leads to
apparent duplication in the heap snapshot and may confuse the users.
This patch allows the embedder to specify V8 wrapper for each embedder
node. In the heap snapshot the wrapper node will be merged into the
embedder node. The resulting node will have the same properties as
the embedder node. If the wrapper node name has a tag, then the tag
is also added to the merged node.
Bug: chromium:811925
Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng
Change-Id: I2492f5b28163a78aee707b9ced1b09ac4b203e3f
Reviewed-on: https://chromium-review.googlesource.com/919482
Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Alexei Filippov <alph@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51394}
Until now lookbehind assertions have been quantifiable in non-unicode regexps.
This seems to be an oversight in the spec.
R=jgruber@chromium.org
Bug: v8:7462
Change-Id: Iad0db441089c7510dd2c42a861db92c05545ce1e
Reviewed-on: https://chromium-review.googlesource.com/926102
Commit-Queue: Yang Guo <yangguo@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51392}
This makes the inlining of the default resolve/reject closures generated
by the Promise constructor effective. To be really useful we still need
to have the Promise constructor inlined (work-in-progress) and eventually
track SharedFunctionInfo feedback in the CALL_IC.
Bug: v8:2206, v8:7253
Change-Id: I08fa8ca72754f459ae36027a55377ef57d411cdc
Reviewed-on: https://chromium-review.googlesource.com/926103
Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Michael Stanton <mvstanton@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51390}
Inline the promise constructor when we have one argument and target
matches new_target.
This is not complete, and is sitting behind an experimental flag for
now. We need to fix deoptimization by providing proper frame states.
Create a unittest class for JSCallReducer - just assert whether there
was a change or not, rather than specify the exact graph that should be
produced.
Bug: v8:7253
Change-Id: Ib6886a8feb2799f47cd647853cabcf12a189bc25
Reviewed-on: https://chromium-review.googlesource.com/919282
Commit-Queue: Peter Marshall <petermarshall@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51389}
Adds support for generating logging/profiling event when wasm code gets compiled
on the native heap. As code objects on the native heap are not ordinary heap
objects, the existing abstractions for reporting cannot be used. Instead, add
specialized versions for WasmCode objects.
Change-Id: I808618d70142073b3c1b06edef6931f59bed8cf5
Reviewed-on: https://chromium-review.googlesource.com/913308
Commit-Queue: Stephan Herhut <herhut@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51388}
This CL introduces new operators JSFulfillPromise and JSPromiseResolve,
corresponding to the specification operations with the same name, and
uses that to lower calls to Promise.resolve() builtin to JSPromiseResolve.
We also optimize JSPromiseResolve and JSResolvePromise further based on
information found about the value/resolution in the graph. This applies
to both Promise.resolve() builtin calls and implicit resolve operations
in async functions and async generators.
On a very simple microbenchmark like
console.time('resolve');
for (let i = 0; i < 1e8; ++i) Promise.resolve({i});
console.timeEnd('resolve');
this CL reduces the execution time from around 3049ms to around 947ms,
which is a pretty significant 3x improvement. On the wikipedia benchmark
we observe an improvement around 2% with this CL.
Bug: v8:7253
Change-Id: Ic69086cdc1b724f35dbe83305795539c562ab817
Reviewed-on: https://chromium-review.googlesource.com/913488
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Georg Neis <neis@chromium.org>
Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51387}
This ensures that breaking on inlined builtins works, even when
compiling concurrently. This CL also introduces the member
Isolate::AbortConcurrentOptimization.
R=sigurds@chromium.org
Bug: v8:178
Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng
Change-Id: Ie6cbb48ebde18036888af2dd715862e7a14ddf9d
Reviewed-on: https://chromium-review.googlesource.com/912468
Commit-Queue: Yang Guo <yangguo@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Sigurd Schneider <sigurds@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51384}
There's no need to have the AsyncFunctionAwait/AsyncGeneratorAwait
operations as separate closures that are called via JavaScript calling
convention, but instead we can just have them as intrinsics (with the
goal to eventually turn them into IC stubs).
Drive-by-fix: Tail call to the ResumeGenerator builtin when resuming
an async function. The earlier restrictions no only apply with the new
machinery.
Bug: v8:7253
Change-Id: I0c4d04dae15b4211158fc07151adafda69d4faec
Reviewed-on: https://chromium-review.googlesource.com/924703
Reviewed-by: Yang Guo <yangguo@chromium.org>
Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51382}
The "FreezeWasmLazyCompilation" runtime function can only be invoked if
--wasm-lazy-compilation is passed. Hence the "lazy-compilation.js" test
must be skipped. The other tests are not affected by this, thus un-skip
them.
R=machenbach@chromium.org
Bug: v8:7400
Change-Id: Id521938ae651b4a67510e42aa69e17b5e0b14a0a
Reviewed-on: https://chromium-review.googlesource.com/923967
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51380}
Change-Id: Idbee9b7b8077a9fd2ffa4a2a010ae7d44b98e31e
Reviewed-on: https://chromium-review.googlesource.com/924198
Commit-Queue: Georg Neis <neis@chromium.org>
Reviewed-by: Georg Neis <neis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51378}
Factor out IterableToList into a helper stub to save space. There are
two callers now, TypedArrayFrom and ConstructByIterable, and it is
~2.5kb so we save space by doing this.
Increase test coverage to cover more of the branching in CSA.
This is doesn't follow the control flow in the spec exactly - see the
big code comment for an explanation.
Change-Id: Ief39e93c4202cb7bf0e28a39dc6aa81b8b9c59d2
Reviewed-on: https://chromium-review.googlesource.com/908755
Commit-Queue: Peter Marshall <petermarshall@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51377}
The result of an f64 binop was marked as f32 on Liftoffs value stack.
This lead to errors and is fixed in this CL.
I plan to clean up all binop implementions in a follow-up CL.
R=titzer@chromium.org
Bug: chromium:812005, v8:6600
Change-Id: I5bcd5c2e7d2b6170ef60f5e83cf2876b3475c38a
Reviewed-on: https://chromium-review.googlesource.com/924025
Reviewed-by: Ben Titzer <titzer@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51375}
Previously, eval caching was only disabled if the root eval body code
contained a tagged template. Per discussion on
https://github.com/tc39/ecma262/pull/890, this is incorrect.
This change tracks if eval caching is allowed during parsing, and
uses this information to decide to insert
new entries into the cache, or not.
This change also removes the TemplateObject feedback kind, as it's no
longer needed (behaves the same as Literal feedback).
BUG=v8:3230, v8:2891
R=littledan@chromium.org, yangguo@chromium.org, bmeurer@chromium.org,
rmcilroy@chromium.org
Change-Id: Ib75abe9159baf4d8ad10f8de99d2152714bd0094
Reviewed-on: https://chromium-review.googlesource.com/916945
Commit-Queue: Caitlin Potter <caitp@igalia.com>
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51373}
This adds PersistentBase::AnnotateStrongRetainer(const char*) function.
The annotation is used by the heap snapshot generator to show the edges
from the (Global handles) root to the global handles.
Bug: chromium:811842
Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng
Change-Id: I1a9e3e53a53aeaf2b590709fab8dd4ecf7e8f252
Reviewed-on: https://chromium-review.googlesource.com/916788
Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Alexei Filippov <alph@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51358}
This is a reland of dda0419ecd.
Originally reviewed-on: https://chromium-review.googlesource.com/914513
and landed as refs/heads/master@{#51342}.
Bug: v8:6791
Change-Id: I3b3a069da7a0e64c38a81b3110dc5ece4887cb19
Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng
Reviewed-on: https://chromium-review.googlesource.com/924665
Reviewed-by: Georg Neis <neis@chromium.org>
Commit-Queue: Georg Neis <neis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51352}
- Replaces calls to Allocator Reserve, Free, and SetPermissions
with equivalent page allocator calls (allocation.h).
- Un-implements these methods to catch usage, in preparation for
removing these.
Bug: chromium:799573
Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng
Change-Id: Id233b7a9cfc8e332c64e514f6359e8b670c2d75e
Reviewed-on: https://chromium-review.googlesource.com/911883
Commit-Queue: Bill Budge <bbudge@chromium.org>
Reviewed-by: Eric Holk <eholk@chromium.org>
Reviewed-by: Peter Marshall <petermarshall@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Hannes Payer <hpayer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51340}
We already cleanup these scripts on frontend side. It is crucial to
cleanup them on backend side as well, since some web applications use
following logic: get some data from network, add this data to buffer,
try to parse buffer using JSON.parse. On each unsuccessfull JSON.parse
we get another scriptFailedToParse event.
Frontend logic of discarding scripts: https://goo.gl/FDtaWK
Some idea of smarter logic here: track what script ids are reported
using protocol and cleanup only script ids which reported not only as
part of scriptFailedToParse event.
R=alph@chromium.org
Bug: chromium:810812
Cq-Include-Trybots: master.tryserver.blink:linux_trusty_blink_rel
Change-Id: Ifd67764c232e4abc7dc6e8e69a651bf9ac0e381b
Reviewed-on: https://chromium-review.googlesource.com/919834
Commit-Queue: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org>
Reviewed-by: Alexei Filippov <alph@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51337}
Add TurboFan inlining support for the following V8 Extras:
- v8.createPromise
- v8.rejectPromise
- v8.resolvePromise
These are used by the streams implementation in Chrome currently, and
were previously not inlined into TurboFan, although TurboFan already
had all the necessary functionality (namely the JSCreatePromise,
JSRejectPromise and JSResolvePromise operators). We might eventually
want to use these functions in Node core as well (at least short-term
for Node 10), to replace the C++ internal API functions with the same
name that are currently being used by parts of Node core.
For this to work, the rejectPromise and resolvePromise builtins had
to be moved back to CSA, as for JavaScript builtins we still have the
policy that the optimizing compiler must not inline them. But that's
straight-forward since the CSA has all the necessary functionality
available anyways.
Bug: v8:7253
Change-Id: I39ab015c379956cd58ace866e17f8ec23b2257b2
Reviewed-on: https://chromium-review.googlesource.com/924146
Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org>
Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51332}
This doesn't enable the warning yet, but adds V8_FALLTHROUGH annotations
in enough places so that v8 can build with the warning on on my linux box.
Found one real bug
(in effect-control-linearizer.cc,
https://chromium-review.googlesource.com/c/v8/v8/+/850392/3/src/compiler/effect-control-linearizer.cc#825
).
Bug: chromium:812686
Cq-Include-Trybots: master.tryserver.blink:linux_trusty_blink_rel
Change-Id: I3542550b9c24b545641d0f0fc43f28f2780b0ab3
Reviewed-on: https://chromium-review.googlesource.com/911731
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Adam Klein <adamk@chromium.org>
Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Commit-Queue: Nico Weber <thakis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51322}
Tbr: jarin@chromium.org
Change-Id: I17477e2c82398b228a366a3d1fd8eb521dd51eae
Reviewed-on: https://chromium-review.googlesource.com/922270
Commit-Queue: Adam Klein <adamk@chromium.org>
Reviewed-by: Ben Titzer <titzer@chromium.org>
Reviewed-by: Brad Nelson <bradnelson@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51317}
This is a reland of af677f29b1, fixing
an issue with negative indices.
Original change's description:
> [ic] EmitElementStore: don't miss when hitting new space limit.
>
> CSA::EmitElementStore used to bail out (IC miss) via
> CSA::CheckForCapacityGrow when the capacity hits the new space
> limit, causing the store IC to go megamorphic in my example (see
> referenced bug). With this CL, we do what TF'ed code does already:
> call into Runtime::kGrowArrayElements (in this situation), thus
> staying monomorphic.
>
> Here's a contrived test case:
>
> ////////////////////////
> let x = [];
>
> function bar() {
> for (let i = 0; i < 50000; ++i) x[i] = i;
> }
>
> function foo() {
> for (let i = x.length; i < 100e6; ++i) x[i] = i;
> }
>
> bar();
> foo();
> ////////////////////////
>
> This took about 4s on my machine, now it takes 3s.
>
> Bug: v8:7447
> Change-Id: I7f268fc55835f363d250613ce0357444a663051c
> Reviewed-on: https://chromium-review.googlesource.com/918723
> Commit-Queue: Georg Neis <neis@chromium.org>
> Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#51297}
Bug: v8:7447, chromium:812451
Change-Id: I345b5e5b2437c4f50e42bbd87947630f24cd95eb
Reviewed-on: https://chromium-review.googlesource.com/921201
Commit-Queue: Georg Neis <neis@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51311}
instance_class_name takes up space unnecessarily, and %_ClassOf and
class_name implement [[Class]] which isn't part of ES2015+ anymore.
Bug:
Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng
Change-Id: I3a73f732ad83a616817fde9992f4e4d584638fa8
Reviewed-on: https://chromium-review.googlesource.com/776683
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Commit-Queue: Toon Verwaest <verwaest@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51309}
The WasmModuleObjectBuilder was the first interface for streaming
compilation of WebAssembly. Over time we realized that the interface
is insufficient, and we introduced the WasmModuleObjectBuilderStreaming
class, which is used now for streaming compilation. Since the
WasmModuleObjectBuilder was never fully functional, I think it is okay
to remove it without a deprecation period.
R=clemensh@chromium.org, adamk@chromium.org
Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng
Change-Id: Ia3ac5f150fdad7bc1ad04ba89aee53538d43ce01
Reviewed-on: https://chromium-review.googlesource.com/913614
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51305}
Apparently it can happen that the variable to which we're restoring to has a
two-byte name corresponding to the one-byte name we expect. Modify the debug-mode
name check to allow this.
BUG=v8:7428
Change-Id: I94c56a4b2de3c58b50246fecaead332b0f9679b4
Reviewed-on: https://chromium-review.googlesource.com/911801
Reviewed-by: Adam Klein <adamk@chromium.org>
Commit-Queue: Marja Hölttä <marja@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51304}
I fixed some spec tests since the last update, so we can turn them on
again. The problem was in the spec test itself and not in V8.
R=titzer@chromium.org
Change-Id: Id2755138293d22d49e0393b884df797a1134b6f9
Reviewed-on: https://chromium-review.googlesource.com/919041
Reviewed-by: Ben Titzer <titzer@chromium.org>
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51290}
- Remove JS implementation of TA.p.filter
- Reimplement TA.p.filter as CSA
- This CL makes TA.p.filter 3x faster in microbenchmark
- Fix a spec bug: throw if buffer is detached while executing callback
Bug: v8:5929
Cq-Include-Trybots: luci.v8.try:v8_linux_noi18n_rel_ng
Change-Id: I2e14b6001d354ca6659cf65fff4ead2942ddc9ff
Reviewed-on: https://chromium-review.googlesource.com/912989
Reviewed-by: Peter Marshall <petermarshall@chromium.org>
Commit-Queue: Peter Marshall <petermarshall@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51288}
The description will be used to annotate roots in the heap snapshot.
Bug: chromium:811842
Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng
Change-Id: Ic5c9a89d1921cabddb06783f08ba63740e72820d
Reviewed-on: https://chromium-review.googlesource.com/916564
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51286}
This introduces masking of loads with speculation bit during code generation.
At the moment, this is done only for x64 optimized code, under the
--branch-load-poisoning flag.
Overview of changes:
- new register configuration configuration with one register reserved for
the speculation poison/mask (kSpeculationPoisonRegister).
- in codegen, we introduce an update to the poison register at the starts
of all successors of branches (and deopts) that are marked as safety
branches (deopts).
- in memory optimizer, we lower all field and element loads to PoisonedLoads.
- poisoned loads are then masked in codegen with the poison register.
* only integer loads are masked at the moment.
Bug: chromium:798964
Change-Id: Ie51fdbde578fc289dff029794f3cfe8eaf33e1ef
Reviewed-on: https://chromium-review.googlesource.com/901625
Commit-Queue: Michael Stanton <mvstanton@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51272}
Now that instruction cache flushing is process-wide and no longer bound
to a specific {Isolate}, we can also make setters on the {RelocInfo}
structure equally independent of the {Isolate} and remove the respective
parameter everywhere.
R=ahaas@chromium.org
Change-Id: I7b21f6f79d0d6cf73424019b9e808c3ec76de08e
Reviewed-on: https://chromium-review.googlesource.com/915922
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51269}
This is a reland of 6d5b54df82e27a82811a836dcdbbfe26829f0e6d
Original change's description:
> [cleanup] Harden the SubString CSA/Runtime implementations.
>
> Remove the self-healing for invalid parameters in the
> CodeStubAssembler::SubString helper and the %SubString runtime function,
> which is used as a fallback for the CodeStubAssembler implementation.
> All call sites must do appropriate parameter validation anyways now that
> the self-hosted JavaScript builtins using these helpers are gone, and we
> have proper contracts with the uses.
>
> Also remove the context parameter from the CodeStubAssembler::SubString
> method, which is unnecessary, since this can no longer throw an
> exception.
>
> Bug: v8:5269, v8:6936, v8:7109, v8:7137
> Change-Id: I19d93bad5f41faa0561c4561a48f78fcba99a549
> Reviewed-on: https://chromium-review.googlesource.com/795720
> Reviewed-by: Jakob Gruber <jgruber@chromium.org>
> Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#49702}
Bug: v8:5269, v8:6936, v8:7109, v8:7137
Change-Id: I5e84998a2dd3990d7981505b401ffc770e0b7ac5
Reviewed-on: https://chromium-review.googlesource.com/913130
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51265}
The idea here is that in case the `thenable` is a JSPromise and `then`
is the initial `Promise.prototype.then` method, and the @@species lookup
chain is intact, we can skip creating the temporary promise and the
closures (with the shared context), and instead directly call into our
PerformPromiseThen. This is sound since - given above mentioned
conditions - our short-cut
PerformPromiseThen(thenable, undefined, undefined, promise_to_resolve)
is not observably different from the actual
resolve, reject = CreateResolvingFunctions(promise_to_resolve)
result_capability = NewPromiseCapability(%Promise%)
PerformPromiseThen(thenable, resolve, reject, result_capability)
except through PromiseHooks (and potentially via the async stack
traces). So we disable the fast-path if either promise hooks are enabled
or the debugger is active for now.
This improves the performance on the wikipedia benchmark by 20-25% and
the bluebird-doxbee benchmark by around 20%.
Bug: v8:7253
Change-Id: I23c92ad365c2b71d65057573f2d8febe2afe00b0
Reviewed-on: https://chromium-review.googlesource.com/911800
Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51261}
This introduces dedicated builtins
- FulfillPromise,
- RejectPromise, and
- ResolvePromise,
which perform the corresponding operations from the language
specification, and removes the redundant entry points and the
excessive inlining of these operations into other builtins. We
also add the same logic on the C++ side, so that we don't need
to go into JavaScript land when resolving/rejecting from the
API.
The C++ side has a complete implementation, including full support
for the debugger and the current PromiseHook machinery. This is to
avoid constantly crossing the boundary for those cases, and to also
simplify the CSA side (and soon the TurboFan side), where we only
do the fast-path and bail out to the runtime for the general handling.
On top of this we introduce %_RejectPromise and %_ResolvePromise,
which are entry points used by the bytecode and parser desugarings
for async functions, and also used by the V8 Extras API. Thanks to
this we can uniformly optimize these in TurboFan, where we have
corresponding operators JSRejectPromise and JSResolvePromise, which
currently just call into the builtins, but middle-term can be further
optimized, i.e. to skip the "then" lookup for JSResolvePromise when
we know something about the resolution.
In TurboFan we can also already inline the default PromiseCapability
[[Reject]] and [[Resolve]] functions, although this is not as effective
as it can be right now, until we have inlining support for the Promise
constructor (being worked on by petermarshall@ right now) and/or SFI
based CALL_IC feedback.
Overall this change is meant as a refactoring without significant
performance impact anywhere; it seems to improve performance of
simple async functions a bit, but otherwise is neutral.
Bug: v8:7253
Change-Id: Id0b979f9b2843560e38cd8df4b02627dad4b6d8c
Reviewed-on: https://chromium-review.googlesource.com/911632
Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Georg Neis <neis@chromium.org>
Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51260}
This information is useful to know whom to assign bugs to when these tests are
crashing on our infrastructure.
R=petermarshall@chromium.org
No-Try: true
Change-Id: Ia165e0236602cae73e144011537d642e3535fa6b
Reviewed-on: https://chromium-review.googlesource.com/908563
Commit-Queue: Sergiy Byelozyorov <sergiyb@chromium.org>
Reviewed-by: Peter Marshall <petermarshall@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51259}
Most of the users of these api methods manually ensure that the returned
values are Strings. With an additional flag we can easily ensure that already
in V8 and avoid needless api roundtrips.
Bug: v8:7358
Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng
Change-Id: I62165d44084abc9f07f5bdaace5105847edca60a
Reviewed-on: https://chromium-review.googlesource.com/901248
Reviewed-by: Adam Klein <adamk@chromium.org>
Reviewed-by: Franziska Hinkelmann <franzih@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51250}
Implements the change outlined in https://github.com/tc39/ecma262/pull/890,
which has been ratified and pulled into the specification. In particular,
template callsite objects are no longer kept in a global, eternal Map, but
are instead associated with their callsite, which can be collected. This
prevents a memory leak incurred by TaggedTemplate calls.
Changes, summarized:
- Remove the TemplateMap and TemplateMapShape objects, instead caching
template objects in the feedback vector.
- Remove the `hash` member of TemplateObjectDescriptor, and the Equals
method (used by TemplateMap)
- Add a new FeedbackSlotKind (kTemplateObject), which behaves similarly
to FeedbackSlotKind::kLiteral, but prevents eval caching. This ensures
that a new feedback vector is always created for eval() containing tagged
templates, even when the CompilationCache is used.
- GetTemplateObject bytecode now takes a feedback index, and only calls
into the runtime if the feedback is Smi::kZero (uninitialized).
BUG=v8:3230, v8:2891
R=littledan@chromium.org, yangguo@chromium.org, bmeurer@chromium.org,
rmcilroy@chromium.org
Cq-Include-Trybots: luci.v8.try:v8_linux_noi18n_rel_ng
Change-Id: I7827bc148d3d93e2b056ebf63dd624da196ad423
Reviewed-on: https://chromium-review.googlesource.com/624564
Commit-Queue: Caitlin Potter <caitp@igalia.com>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51248}
some time the output of these two could be the same
if machine is fast enough.
Change-Id: I1d9c0191657abae3d053517d45059065df2d44dc
Reviewed-on: https://chromium-review.googlesource.com/911873
Reviewed-by: Georg Neis <neis@chromium.org>
Commit-Queue: Junliang Yan <jyan@ca.ibm.com>
Cr-Commit-Position: refs/heads/master@{#51247}
According to the spec, if an imported function gets exported, the
exported function has to be identical to to imported function.
With this CL we initialize the list of potential js_wrappers_ with all
wasm function we imported. Therefore no new wrappers are generated for
these functions.
R=clemensh@chromium.org
Bug: v8:7364
Change-Id: Ibcd47d8fcc4c2fb5740d57ea547fbd01c2a4e80a
Reviewed-on: https://chromium-review.googlesource.com/901626
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51244}
The test is slower on msan than its own anticipated runtime, which the test
internally measures.
TBR=danno@chromium.org
NOTRY=true
Bug: v8:7439
Change-Id: Iba08f589697bcf17b1f4d2cedb1313ff9a34c082
Reviewed-on: https://chromium-review.googlesource.com/913468
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51239}
Apparently the fuzzer tries to create functions with more 130000
parameters, which is too much for TurboFan. For returns I use the
wasm limit because only wasm uses multiple returns.
R=clemensh@chromium.org
Bug: chromium:811070
Change-Id: Ib9a55439c1da8e82ef5f35ffb2e79cab8d4a9018
Reviewed-on: https://chromium-review.googlesource.com/913268
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51231}
Moves generation of speculation poison to be based on the PC target vs the
actual PC being executed. The speculation poison is generated in the prologue
of the generated code if CompilationInfo::kGenerateSpeculationPoison is set.
The result is stored in a known register, which can then be read using the
SpeculationPoison machine node.
Currently we need to ensure the SpeculationPoison node is scheduled right after
the code prologue so that the poison register doesn't get clobbered. This is
currently not verified, however it's only use is in RawMachineAssembler where
it is manually scheduled early.
The Ignition bytecode handlers are updated to use this speculation poison
rather than one generated by comparing the target bytecode.
BUG=chromium:798964
Change-Id: I2a3d0cfc694e88d7a8fe893282bd5082f693d5e2
Reviewed-on: https://chromium-review.googlesource.com/893160
Commit-Queue: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51229}
This fixes a bug which causes the call count to change when
changing the speculation mode.
Bug: v8:7127
Change-Id: Icb43bd9ac392a5be4df154cb1e5cd4365013efc4
Reviewed-on: https://chromium-review.googlesource.com/911575
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51227}
This is a purely cosmetic change. Rename all local variables and
parameters of type CallDescriptor* to "call_descriptor".
For locals that are now named "call_descriptor", use auto upon
initialization, following the Google style guide
(https://google.github.io/styleguide/cppguide.html#auto).
Note: fields in structs and classes were not renamed in this CL.
R=clemensh@chromium.org,mstarzinger@chromium.org,jarin@chromium.org
Change-Id: Ic6f7afdba12f7b97741b098a9d0e0f58c41c587e
Reviewed-on: https://chromium-review.googlesource.com/909866
Commit-Queue: Ben Titzer <titzer@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51223}
This refactors the instruction cache simulation to now be maintained
process-wide (as opposed to be per Isolate). It prepares for allowing
to share code between Isolates (e.g. WebAssembly or shared builtins)
while still allowing to simulate execution of such shared code.
R=clemensh@chromium.org
Change-Id: I5a6f083f4e32597565dc646f13b4445014c0daaa
Reviewed-on: https://chromium-review.googlesource.com/909130
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51219}
This avoids the ambiguous implicit conversion C++ compile
errors we had to fix with static_cast before.
Change-Id: I4247f617740f2b6d14d9588a902e0e25029a6726
Reviewed-on: https://chromium-review.googlesource.com/911629
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Tobias Tebbi <tebbi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51217}
When streaming compilation for WebAssembly gets aborted, we reject the
promise associated with the compilation. However, in some circumstances,
e.g. when streaming comilation gets aborted because the browser tab gets
refreshed, then we want to omit rejecting the promise. In an older CL
(https://crrev.com/c/876103) we omit rejecting the promise when the
exception value is null. With this CL the exception value is a MaybeLocal
so that we document properly that the value can be null. In addition, I
added documentation to say that in that case we do not reject the promise.
R=adamk@chromium.org
Bug: chromium:803838
Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng
Change-Id: I6a093e61c8ec63f7ae385a7f77ae6178e7b34a06
Reviewed-on: https://chromium-review.googlesource.com/897647
Reviewed-by: Adam Klein <adamk@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51211}
This removes the Javascript version of Array.from in js/array.js and
adds a CodeStubAssembler version in src/builtins/builtins-array-gen.cc.
Also modify IteratorBuiltinsAssembler to allow querying the existence
of the iterator method without calling it so we can fall back to the
array-like behavior.
BUG=v8:1956
Change-Id: Ibfb3cef002d72d70bd30b4de676fd22becde006c
Reviewed-on: https://chromium-review.googlesource.com/887066
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Commit-Queue: Dan Elphick <delphick@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51208}
Since we naively build the JS source code through concatenation,
we need to ensure the regexp literal does not end up being interpreted
as a multiline comment:
const re = /*/;
Bug: v8:6741,chromium:808418
Change-Id: Id52fbd2d62c14fc634d05fa1b0192ab86cc9e4fc
Reviewed-on: https://chromium-review.googlesource.com/905667
Reviewed-by: Yang Guo <yangguo@chromium.org>
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51206}
We used to calculate hash in completely incorrect way. We use each
forth character to calculate hash but we should use each one.
R=dgozman@chromium.org
Bug: v8:7426
Cq-Include-Trybots: master.tryserver.blink:linux_trusty_blink_rel
Change-Id: Iaaa317bbf3b3ef71632735dfd069db450283b6f4
Reviewed-on: https://chromium-review.googlesource.com/909586
Commit-Queue: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org>
Reviewed-by: Dmitry Gozman <dgozman@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51191}
Timeouts on num-fuzzer only lead to false positives, as tests might
take unpredictably longer.
This CL forgives timeouts through a global override mechanism of the
expected outcomes. This allows to remove already existing scattered
code that allowed timeouts in some test suites only.
Bug: v8:6917
Change-Id: Ib131765d360e335789c1952bc6793ed051e016ea
Reviewed-on: https://chromium-review.googlesource.com/908454
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Sergiy Byelozyorov <sergiyb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51188}
PromiseHooks can be called with a proxy which fails the cast and
crashes. This patch changes the runtime functions to
explicitly check for a JSPromise.
This has the side effect of removing the existing broken support for
catch prediction for non native promises.
Bug: v8:7398, v8:7190
Change-Id: I66dbe5f9935943a91afb7ee14919bd9248f9f7e4
Reviewed-on: https://chromium-review.googlesource.com/907677
Reviewed-by: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Sathya Gunasekaran <gsathya@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51182}
This reverts commit 14108f4c2e.
Reason for revert: Not the culprit for Canary microtask crashes
Original change's description:
> [builtins] Mega-revert to address the Dev blocker in crbug.com/808911.
>
> - Revert "[builtins] Save one word in contexts for Promise.all."
> This reverts commit 7632da067b.
> - Revert "[builtins] Also use the Promise#then protector for Promise#finally()."
> This reverts commit d4f072ced3.
> - Revert "[builtins] Don't mess with entered context for MicrotaskCallbacks."
> This reverts commit 6703dacdd6.
> - Revert "[debugger] Properly deal with settled promises in catch prediction."
> This reverts commit 40dd065823.
> - Revert "[builtins] Widen the fast-path for Promise builtins."
> This reverts commit db0556b7e8.
> - Revert "[builtins] Unify PerformPromiseThen and optimize it with TurboFan."
> This reverts commit a582199c5e.
> - Revert "[builtins] Remove obsolete PromiseBuiltinsAssembler::AppendPromiseCallback."
> This reverts commit 6bf8885290.
> - Revert "[builtins] Turn NewPromiseCapability into a proper builtin."
> This reverts commit 313b490ddd.
> - Revert "[builtins] Inline InternalPromiseThen into it's only caller"
> This reverts commit f7bd6a2fd6.
> - Revert "[builtins] Implement Promise#catch by really calling into Promise#then."
> This reverts commit b23b098fa0.
> - Revert "[promise] Remove incorrect fast path"
> This reverts commit 0f6eafe855.
> - Revert "[builtins] Squeeze JSPromise::result and JSPromise::reactions into a single field."
> This reverts commit 8a677a2831.
> - Revert "[builtins] Refactor promises to reduce GC overhead."
> This reverts commit 8e7737cb58.
>
> Tbr: hpayer@chromium.org
> Bug: chromium:800651, chromium:808911, v8:5691, v8:7253
> Change-Id: I8c8ea5ed32ed62f6cd8b0d027a3707ddd891e5f1
> Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng
> Reviewed-on: https://chromium-review.googlesource.com/906991
> Commit-Queue: Yang Guo <yangguo@chromium.org>
> Commit-Queue: Adam Klein <adamk@chromium.org>
> Reviewed-by: Adam Klein <adamk@chromium.org>
> Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#51158}
Change-Id: I09d958cbebd635a325809072a290f2f53df8c5d4
Tbr: adamk@chromium.org,yangguo@chromium.org,bmeurer@chromium.org
Bug: chromium:800651, chromium:808911, v8:5691, v8:7253
Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng
Reviewed-on: https://chromium-review.googlesource.com/908988
Reviewed-by: Adam Klein <adamk@chromium.org>
Commit-Queue: Adam Klein <adamk@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51181}
Because of missing parentheses, the computation of the "half index" was
wrong, and always produced 0 or 1.
Also, for non-pairs, we were still passing kHighWord for the
RegPairHalf.
R=ahaas@chromium.org
Bug: v8:7422, v8:6600
Change-Id: If056aa8005d4b44e667b7d76b9be49ec0191d0eb
Reviewed-on: https://chromium-review.googlesource.com/908554
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51175}
Currently the disassembler tests continue on unimplemented instructions, fix
to abort instead as most bugs in the disassemblers will appear as unimplemented
instructions.
- Localize testing disassembler method to abort on unimplemented
- Fix failing x64 disassembler tests
Change-Id: I703cca9709c528327ec381d05a78cf3314ea4fa9
Reviewed-on: https://chromium-review.googlesource.com/907489
Reviewed-by: Ben Titzer <titzer@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Deepti Gandluri <gdeepti@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51162}
wasm code manager is known to have issue on reloc tagging and
also constant pool. Ignore until fix go in.
Change-Id: I4d7ddafba3cf8bc81c73a7b156cba39985bce48d
Reviewed-on: https://chromium-review.googlesource.com/906950
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Commit-Queue: Junliang Yan <jyan@ca.ibm.com>
Cr-Commit-Position: refs/heads/master@{#51160}
- Revert "[builtins] Save one word in contexts for Promise.all."
This reverts commit 7632da067b.
- Revert "[builtins] Also use the Promise#then protector for Promise#finally()."
This reverts commit d4f072ced3.
- Revert "[builtins] Don't mess with entered context for MicrotaskCallbacks."
This reverts commit 6703dacdd6.
- Revert "[debugger] Properly deal with settled promises in catch prediction."
This reverts commit 40dd065823.
- Revert "[builtins] Widen the fast-path for Promise builtins."
This reverts commit db0556b7e8.
- Revert "[builtins] Unify PerformPromiseThen and optimize it with TurboFan."
This reverts commit a582199c5e.
- Revert "[builtins] Remove obsolete PromiseBuiltinsAssembler::AppendPromiseCallback."
This reverts commit 6bf8885290.
- Revert "[builtins] Turn NewPromiseCapability into a proper builtin."
This reverts commit 313b490ddd.
- Revert "[builtins] Inline InternalPromiseThen into it's only caller"
This reverts commit f7bd6a2fd6.
- Revert "[builtins] Implement Promise#catch by really calling into Promise#then."
This reverts commit b23b098fa0.
- Revert "[promise] Remove incorrect fast path"
This reverts commit 0f6eafe855.
- Revert "[builtins] Squeeze JSPromise::result and JSPromise::reactions into a single field."
This reverts commit 8a677a2831.
- Revert "[builtins] Refactor promises to reduce GC overhead."
This reverts commit 8e7737cb58.
Tbr: hpayer@chromium.org
Bug: chromium:800651, chromium:808911, v8:5691, v8:7253
Change-Id: I8c8ea5ed32ed62f6cd8b0d027a3707ddd891e5f1
Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng
Reviewed-on: https://chromium-review.googlesource.com/906991
Commit-Queue: Yang Guo <yangguo@chromium.org>
Commit-Queue: Adam Klein <adamk@chromium.org>
Reviewed-by: Adam Klein <adamk@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51158}
Adds the remaining saturating float to int conversion opcodes.
Bug: v8:7226
Change-Id: If84e564a7816eb4aedbc336f5c2e614da22bb10a
Reviewed-on: https://chromium-review.googlesource.com/905472
Commit-Queue: Karl Schimpf <kschimpf@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51157}
This patch attempts to reduce the special handling of destructuring
assignments in arrow function parameters by "adopting" them from
wherever they were initially parsed into the arrow function's
FunctionState/Scope. This avoids incorrectly re-setting the
Scope of such assignments multiple times for arrow functions
that are nested inside other arrow params themselves.
It also generally seems better, in that we now only rewrite
destructuring assignments for a single function at a time.
Bug: chromium:807096
Change-Id: I6bef5613f99e3e8c130fc0aa2ee5d6fcf2efd34b
Reviewed-on: https://chromium-review.googlesource.com/900168
Reviewed-by: Marja Hölttä <marja@chromium.org>
Reviewed-by: Caitlin Potter <caitp@igalia.com>
Commit-Queue: Adam Klein <adamk@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51155}
