Many handlers are not used again, so we can improve the cache hit rate
by caching fewer handlers. Specifically, in this CL, when a StoreIC
miss causes a new map transition to be created, then the handler is not
cached right away yet (it will be cached next time, when the transition
exists already).
Also, fix an embarrassing bug where growing a TransitionArray dropped
cached handlers. That further improves the cache hit rate. ;-)
Bug: chromium:752867, chromium:753819
Change-Id: Id8db5ca1e780a5fe8fc61db7f20996e61c65a90e
Reviewed-on: https://chromium-review.googlesource.com/619851
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47433}
(source_length - 1) can be overflowed, and cause OOB access when source_length
is zero. Thus, just do not operate setting if source_length is zero when
starting TypedArraySetFromOverlapping.
Bug: v8:6704
Change-Id: I5da60590c9a197eae96625a12720f6818b8c598a
Reviewed-on: https://chromium-review.googlesource.com/620452
Commit-Queue: Franziska Hinkelmann <franzih@chromium.org>
Reviewed-by: Franziska Hinkelmann <franzih@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47430}
The crash used to happen when trap is a Smi.
Bug: chromium:756608
Change-Id: I0a6f0328afc64d8e521b5b370a291f9aef6b08d0
Reviewed-on: https://chromium-review.googlesource.com/620647
Reviewed-by: Georg Neis <neis@chromium.org>
Commit-Queue: Maya Lekova <mslekova@google.com>
Cr-Commit-Position: refs/heads/master@{#47429}
Fix MaxIndex in test-gap-resolver.cc so that the above check doesn't
fire.
Change-Id: I6588800281d797f3f8b33ced4c1b03315196fe44
Reviewed-on: https://chromium-review.googlesource.com/618809
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Commit-Queue: Albert Mingkun Yang <albertnetymk@google.com>
Cr-Commit-Position: refs/heads/master@{#47421}
This is a followup to moving the ModuleEnv to the compiler directory and
making it immutable.
R=mtrofin@chromium.org, ahaas@chromium.org
Bug:
Change-Id: I0f5ec1b697bdcfad0b4dc2bca577cc0f40de8dc0
Reviewed-on: https://chromium-review.googlesource.com/616762
Commit-Queue: Ben Titzer <titzer@chromium.org>
Reviewed-by: Mircea Trofin <mtrofin@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47419}
This CL (finally) makes the contract between the compiler and the module
environment clear. In order to compile a function, the caller must provide
an instance of the compiler::ModuleEnv struct, which contains references
to code, function and signature tables, memory start, etc.
R=mtrofin@chromium.org,ahaas@chromium.org
Bug:
Change-Id: I68e44d5da2c5ad44dad402029c2e57f2d5d25b4f
Reviewed-on: https://chromium-review.googlesource.com/613880
Reviewed-by: Mircea Trofin <mtrofin@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Ben Titzer <titzer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47418}
This patch changes how space size and capacity are updated in GC:
- space capacity changes only when a page added/removed from the space.
- space size is reset to zero before sweeping and incremented by
page->live_bytes_count_ for each to-be-swept page.
- space size is refined after sweeping using the accurate
page->allocated_bytes counter produces by the sweeper.
Invariants:
1. space.capacity = sum [page.size | for page in space].
2. After marking, before sweeping:
a) space.size = sum [page.live_bytes_count | for page in space].
3. After sweeping, before marking ends:
a) space.size = sum [page.allocated_bytes | for page in space].
b) page.allocated_bytes >= (sum [object.size | for object in page] +
page.linear_allocation_area).
c) page.area_size = (page.allocated_bytes + page.wasted_memory +
sum [free_list_entry.size | for free_list_entry in page].
3.b becomes equality if the mutator is not doing array trimming,
object slack tracking during sweeping.
Bug: chromium:694255
Change-Id: Ic8d16a8171187a113fee2df8bf3c2a4c5e77bc08
Reviewed-on: https://chromium-review.googlesource.com/618889
Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47409}
The bug was that we didn't track using await as a class name inside
arrow function formal parameters, and hence didn't recognize the error
in this case:
async(x = class await {}) => {}
BUG=v8:6714
Change-Id: Iabe6c947a4f621fb72361671d77f4765ba1a9578
Reviewed-on: https://chromium-review.googlesource.com/616776
Reviewed-by: Adam Klein <adamk@chromium.org>
Commit-Queue: Marja Hölttä <marja@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47407}
Move the desugaring into BytecodeGenerator per TODOs.
BUG=v8:6472
R=tebbi@chromium.org, rmcilroy@chromium.org, jgruber@chromium.org
Change-Id: Ic482bee18d6e6fe73de4c5f9abaf4feda7be2dd5
Reviewed-on: https://chromium-review.googlesource.com/550396
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Georg Neis <neis@chromium.org>
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Commit-Queue: Caitlin Potter <caitp@igalia.com>
Cr-Commit-Position: refs/heads/master@{#47403}
Make it consistent so that registers in all architecture have a member
function called `bit()`.
Bug:
Change-Id: Ie6323f81d4ecab1557259a43a30100d8da8b35f1
Reviewed-on: https://chromium-review.googlesource.com/618872
Commit-Queue: Albert Mingkun Yang <albertnetymk@google.com>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47401}
This is a reland of 21da12a983
Original change's description:
> [Compiler] Remove CompileDebugCode and EnsureBytecode and replace with Compile
>
> Removes the Compiler::CompileDebugCode and Compiler::EnsureBytecode functions
> and replaces them with a Compiler::Compile(Handle<SharedFunctionInfo> shared)
> function. The code in compiler.cc is refactored to use this function to compile
> the SharedFunctionInfo when compiling a JSFunction.
>
> Also does some other cleanup:
> - Removes CompileUnoptimizedFunction and inlines into new Compiler function
> - Moves code to create top level SharedFunctionInfo into CompilerTopLevel and
> out of FinalizeUnoptimizedCompile.
>
> BUG=v8:6409
>
> Change-Id: Ic54afcd8eb005c17f3ae6b2355060846e3091ca3
> Reviewed-on: https://chromium-review.googlesource.com/613760
> Commit-Queue: Ross McIlroy <rmcilroy@chromium.org>
> Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
> Reviewed-by: Leszek Swirski <leszeks@chromium.org>
> Reviewed-by: Yang Guo <yangguo@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#47394}
TBR=yangguo@chromium.orgTBR=jarin@chromium.org
Bug: v8:6409
Change-Id: If2eae66a85f129e746a5ca5c04935540f3f86b04
Reviewed-on: https://chromium-review.googlesource.com/618886
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Commit-Queue: Ross McIlroy <rmcilroy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47399}
This CL introduces 6 tests that verify that the effects of a grow_memory
instruction executed inside a function are visible also from the caller of
the function.
The tests verify that:
* the current_memory instruction returns the correct value after
returning from a function that grew memory;
* accessing a memory page that has been created inside a function does
not trap in the caller;
* when a function grows the memory and then store something in the grown
memory, the caller always reads from the grown memory. This checks that
the memory start address gets updated in the caller (the memory buffer
could in fact be relocated by the grow_memory instruction).
These tests are implemented for direct and indirect function calls.
R=ahaas@chromium.org,clemensh@chromium.org
Change-Id: Iac8db0fa7a6dd6f530e090af5423fc165d87e863
Reviewed-on: https://chromium-review.googlesource.com/616150
Commit-Queue: Enrico Bacis <enricobacis@google.com>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47398}
This reverts commit 21da12a983.
Reason for revert: Failing on arm64 simulator
Original change's description:
> [Compiler] Remove CompileDebugCode and EnsureBytecode and replace with Compile
>
> Removes the Compiler::CompileDebugCode and Compiler::EnsureBytecode functions
> and replaces them with a Compiler::Compile(Handle<SharedFunctionInfo> shared)
> function. The code in compiler.cc is refactored to use this function to compile
> the SharedFunctionInfo when compiling a JSFunction.
>
> Also does some other cleanup:
> - Removes CompileUnoptimizedFunction and inlines into new Compiler function
> - Moves code to create top level SharedFunctionInfo into CompilerTopLevel and
> out of FinalizeUnoptimizedCompile.
>
> BUG=v8:6409
>
> Change-Id: Ic54afcd8eb005c17f3ae6b2355060846e3091ca3
> Reviewed-on: https://chromium-review.googlesource.com/613760
> Commit-Queue: Ross McIlroy <rmcilroy@chromium.org>
> Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
> Reviewed-by: Leszek Swirski <leszeks@chromium.org>
> Reviewed-by: Yang Guo <yangguo@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#47394}
TBR=rmcilroy@chromium.org,yangguo@chromium.org,jarin@chromium.org,leszeks@chromium.org
Change-Id: I4ba63e82417a185f1528ff2633eb6c8872fbbfe5
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:6409
Reviewed-on: https://chromium-review.googlesource.com/618687
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Commit-Queue: Ross McIlroy <rmcilroy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47397}
The WASM spec maximum memory size is higher than internal V8 maximum object
size. When a memory object grows above this limit (and only in that case), we
should signal an error.
This worked for not-exported memory; however when growing exported memory, the
code was comparing the V8 memory limit with the maximum number of pages defined
in the module, instead of the current number of pages + the number of new
required pages. This lead to signaling errors even when growing exported memory
below the V8 limit if the maximum number of pages specified in the module was
higher than the V8 limit.
GrowMemoryBuffer already checks that we do not grow a memory buffer past the
maximum size specified as parameter, so we can pass it the minimum between the
the V8 limit and the maximum number of pages specified in the module.
This CL introduces a test in test/mjsunit/wasm/import-memory.js that triggers
the problematic path and a patch to fix it.
R=ahaas@chromium.org,clemensh@chromium.org,gdeepti@chromium.org
Change-Id: I5a8da420418b394d61e1ba3cdf4408c3c09e61b6
Reviewed-on: https://chromium-review.googlesource.com/600217
Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Commit-Queue: Enrico Bacis <enricobacis@google.com>
Cr-Commit-Position: refs/heads/master@{#47395}
Removes the Compiler::CompileDebugCode and Compiler::EnsureBytecode functions
and replaces them with a Compiler::Compile(Handle<SharedFunctionInfo> shared)
function. The code in compiler.cc is refactored to use this function to compile
the SharedFunctionInfo when compiling a JSFunction.
Also does some other cleanup:
- Removes CompileUnoptimizedFunction and inlines into new Compiler function
- Moves code to create top level SharedFunctionInfo into CompilerTopLevel and
out of FinalizeUnoptimizedCompile.
BUG=v8:6409
Change-Id: Ic54afcd8eb005c17f3ae6b2355060846e3091ca3
Reviewed-on: https://chromium-review.googlesource.com/613760
Commit-Queue: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47394}
The accumulator should never be alive when jumping back to a loop
header, or jumping out of a loop. This means that as far as far as
TurboFan is concerned, we never need to create Phis or LoopExitValues
for the accumulator, as its value should not escape the loop.
For safety, this also augments the IsLivenessValid DCHECK in the
liveness analysis to check that the accumulator is not live in these
cases, and amends the bytecode analysis tests to kill the accumulator
where necessary to ensure this.
As a drive-by, added some comments to the more complex bytecode analysis
tests, since figuring out what they were for and how to fix them took a
non-trivial amount of time.
Change-Id: Idecf76a36681d724134c59768650c23cc6b0e9ef
Reviewed-on: https://chromium-review.googlesource.com/615168
Commit-Queue: Jaroslav Sevcik <jarin@chromium.org>
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47388}
This removes brittle Scope walking in FinalizeForOfStatement()
by making ParserBase call InitializeForEachStatement() while
in the proper Scope.
Bug: v8:6724
Change-Id: I6e828ccb3a5e4d98633a95a2bfb8d255ad0fc0eb
Reviewed-on: https://chromium-review.googlesource.com/614654
Reviewed-by: Marja Hölttä <marja@chromium.org>
Commit-Queue: Adam Klein <adamk@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47376}
Makes ClusterFuzz start fuzzing with the flag on.
BUG=v8:5516
Change-Id: Ia80f7d22f12fe25efb226102a896e8b0e3537947
Reviewed-on: https://chromium-review.googlesource.com/610000
Commit-Queue: Marja Hölttä <marja@chromium.org>
Reviewed-by: Adam Klein <adamk@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47366}
This removes:
- CodeBreakIterator for FCG code.
- RelocModes for debug breaks.
- Code generator for debug break slots.
- GC support for debug break slots.
- Code flag to indicate code with debug break slots.
- Builtin type DBG.
- Mechanisms to replace FCG code in the debugger and LiveEdit.
- Runtime entry to the debugger from debug break slots.
R=bmeurer@chromium.org, rmcilroy@chromium.org, ulan@chromium.org
Bug: v8:6409
Change-Id: I5662c8800e3ef1b1584ad107bfe0aae26c9d8abb
Reviewed-on: https://chromium-review.googlesource.com/613263
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Commit-Queue: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47364}
This one allows us to support custom promises implementation.
With awaitPromise flag Runtime.evaluate awaits
Promise.resolve(<expression result>).
This also allows to await for any non-Promise value, similar to await
expression, which is more convenient for most protocol users.
R=dgozman@chromium.org
Bug: chromium:755104
Cq-Include-Trybots: master.tryserver.blink:linux_trusty_blink_rel
Change-Id: Iee798b33b6fb7de7d393372e164c0481d1bbf7eb
Reviewed-on: https://chromium-review.googlesource.com/614308
Commit-Queue: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org>
Reviewed-by: Dmitry Gozman <dgozman@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47354}
Tests were monolithic, with large loops, and slow on ARM64. Refactor to
small tests so they can be sharded better, reduce page size to 1 to
keep the loops small.
BUG=v8:6532
Change-Id: I712551564d4a70fc12acdf114922feb614aeb271
Reviewed-on: https://chromium-review.googlesource.com/611614
Reviewed-by: Ben Smith <binji@chromium.org>
Commit-Queue: Deepti Gandluri <gdeepti@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47353}
In the case of a function constructor or eval, we create a new script
object which doesn't have a script name. In this case, we traverse
upwards on the list of SFI's through script->eval_from_shared() to get
the outermost script that was not an eval script and get the script
name from that script.
Bug: chromium:746909, v8:6683, v8:5785
Change-Id: I430459f632a0e3b18fc3111a5cf1c00cedb9f520
Reviewed-on: https://chromium-review.googlesource.com/606701
Commit-Queue: Sathya Gunasekaran <gsathya@chromium.org>
Reviewed-by: Adam Klein <adamk@chromium.org>
Reviewed-by: Georg Neis <neis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47352}
* Avoid "using namespace" statements, which trigger clang's -Wheader-hygiene
warnings in jumbo builds.
* Undefine created macros at the end of source files.
BUG=chromium:746958
Change-Id: I5d25432c314437f607b0e1be22765a6764267ba6
Reviewed-on: https://chromium-review.googlesource.com/610962
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Mostyn Bramley-Moore <mostynb@opera.com>
Cr-Commit-Position: refs/heads/master@{#47347}
Fixes the implementation of wasm exceptions to use a WasmRuntimeError
object, and set the exception tag value as a property of the
object. This guarantees that an uncaught wasm exception is treated
like all other runtime errors.
Bug: v8:6577
Change-Id: I0ab0130444e745178e86c23b3bc9fc9f385c8d05
Reviewed-on: https://chromium-review.googlesource.com/611124
Reviewed-by: Bill Budge <bbudge@chromium.org>
Reviewed-by: Eric Holk <eholk@chromium.org>
Commit-Queue: Karl Schimpf <kschimpf@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47346}
Add a benchmark for TypedArray.prototype.set when
setting from another TypedArray with a different type.
Bug: v8:6704
Change-Id: Iad5585fe7d3a28b5b1a1b1f85ec81be659959239
Reviewed-on: https://chromium-review.googlesource.com/613267
Commit-Queue: Franziska Hinkelmann <franzih@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47343}
Add benchmark for TypedArray.prototype.set when
setting from another TypedArray with the same type.
Bug: v8:6704
Change-Id: Ibde60b17aa32fb9c8237b2ab766d2b2913e256d7
Reviewed-on: https://chromium-review.googlesource.com/613264
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Commit-Queue: Franziska Hinkelmann <franzih@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47342}
This follows up 4af9cfcc by separating incremental marking state
from the full MC marking state. Runtime and tests now use only
the incremental marking state. The full MC marking state used
by MC during atomic pause.
This separation decouples atomicity of markbit accesses
during incremental marking and during full MC.
Bug: chromium:694255
TBR: mlippautz@chromium.org
Change-Id: Ia409ab06515cd0d1403a272a016633295c0d6692
Reviewed-on: https://chromium-review.googlesource.com/612350
Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47336}
This reverts commit 01cae9efe4.
Reason for revert: Seeing several flaky crashes on windows associated to this change:
https://build.chromium.org/p/client.v8/builders/V8%20Win64%20-%20debug/builds/18407https://build.chromium.org/p/client.v8/builders/V8%20Win64%20-%20debug/builds/18408
Original change's description:
> [Memory] Improve OOM callback tests.
>
> - Changes OOM tests to keep allocating more and more, starting from a
> large amount, until we exhaust address space and get a failure.
>
> Bug: v8:6635
> Change-Id: I007927c5f639ed395d90198272c93b6ee0e58249
> Reviewed-on: https://chromium-review.googlesource.com/609264
> Commit-Queue: Bill Budge <bbudge@chromium.org>
> Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#47328}
TBR=bbudge@chromium.org,mlippautz@chromium.org
Change-Id: Ibe49f99040e1a3c595ed836d1d40dbd0c7247d1c
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:6635
Reviewed-on: https://chromium-review.googlesource.com/612288
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47332}
- Changes OOM tests to keep allocating more and more, starting from a
large amount, until we exhaust address space and get a failure.
Bug: v8:6635
Change-Id: I007927c5f639ed395d90198272c93b6ee0e58249
Reviewed-on: https://chromium-review.googlesource.com/609264
Commit-Queue: Bill Budge <bbudge@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47328}
- See bug for the reduced test case.
- Not adding a regression test here: I don't want to assert that PreParser
doesn't detect the redeclaration error, OTOH I don't want to make it detect
the error either (in order to not couple detecting the error with
FLAG_experimental_preparser_analysis).
BUG=chromium:753896, v8:5516
Change-Id: I0f1beffe30e5cb48d6dbec35181980864e6df153
Reviewed-on: https://chromium-review.googlesource.com/608976
Reviewed-by: Adam Klein <adamk@chromium.org>
Commit-Queue: Marja Hölttä <marja@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47326}
These operators were only used by the old asm.js pipeline (with
fullcodegen and the AstGraphBuilder). When going through the new
pipeline, accesses to TypedArrays are handled by the native
context specialization during inlining.
Bug: v8:6409
Change-Id: Ib9b888c0b96f297a335580ee42dfa951bde566be
Reviewed-on: https://chromium-review.googlesource.com/612347
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47322}
Removes the new.target slot from the interpreter's fixed frame. Instead
adds a field to BytecodeArray to get the bytecode's incoming
new.target or generator object register. The InterpreterEntryTrampoline
then sets this register with the incoming new.target (or generator object)
when the function is called. This register can be directly the new.target
or generator object variable if they are LOCAL location, otherwise it is a
temporary register which is then moved to the variable's location during the
function prologue.
This fixes a hack in the deoptimizer where we would set the new.target fixed
slot to undefined in order to avoid extending it's lifetime through the
optimized code - now it's just a standard register and can be optimized away
as normal.
Bug=v8:6644
Change-Id: Ieb8cc34cccefd9fb6634a90cbc77c6002a54f2ae
Reviewed-on: https://chromium-review.googlesource.com/608966
Commit-Queue: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47320}
As long as we have scripts with negative source offset (see inline event listeners) we should not crash a browser when get negative offset.
R=jgruber@chromium.org
Bug: chromium:750592
Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng
Change-Id: Ic3138e7c61ec0a5133c56de9970acdffa5536d8e
Reviewed-on: https://chromium-review.googlesource.com/611613
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Commit-Queue: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47318}
Bytecode array visitor has a side-effect of incrementing the age counter.
This patch makes the increment atomic and thus safe for the concurrent
marker.
Bug: chromium:694255
Change-Id: I36c65b02ace8d366206bd8295e72aaa19742ed56
Reviewed-on: https://chromium-review.googlesource.com/610001
Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47317}
It expected its argument to be a JSFunction, but fuzzer tests can
pass anything. Non-JSFunction arguments should just silently be
ignored, just like similar CF-whitelisted runtime functions do.
Bug: chromium:754177
Change-Id: I41b29528bbe72f24b3d84f021b22602160769d26
Reviewed-on: https://chromium-review.googlesource.com/610706
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47316}
This class provides byte level CAS operation using word level CAS.
Bug: chromium:694255
Change-Id: I39e661ee8d11e3f61fd5cb64c36f8f5ee94d1244
Reviewed-on: https://chromium-review.googlesource.com/612170
Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47311}
Deletes the now unused Full-codegen compiler. Also removes some macro
assembler instructions which are no longer used.
Note: there is still additional cleanup work to do after this lands
(e.g., remove support for FCG frames support and FCG
debugger support, etc.), but this will be done in followup CLs to keep
this patch managable.
BUG=v8:6409
Change-Id: I8d828fe7a64d29f2c1252d5fda968a630a2e9ef2
Reviewed-on: https://chromium-review.googlesource.com/584773
Commit-Queue: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47307}
The removed building blocks have either been completely unused or have
already been replaced.
Bug:
Change-Id: I68a4d5d42b7f1cc3c5f8d0e7ea7146c5a0f59048
Reviewed-on: https://chromium-review.googlesource.com/612163
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47304}
For Divide operations like
r = a / b
where r has only truncated uses (i.e. only used in bitwise operations),
we used to generate a Float64Div unless we statically knew something
about a and b, even if a and b have always been integers so far.
Crankshaft was able to generate an integer division here, because
Fullcodegen collected feedback independently for inputs and outputs of
binary operations.
This adds new BinaryOperationFeedback::kSignedSmallInputs, which is used
specifically for Divide to state that we have seen only SignedSmall
inputs thus far, but the outputs weren't always in the SignedSmall
range.
The issue was discovered in a WebGL Triangulation library and reported
via https://twitter.com/mourner/status/895708603117518848 after Node
8.3.0 was released with I+TF.
R=jarin@chromium.org
Bug: v8:6698
Change-Id: I830e421a3bf91fc8fa3665cbb706bc13675a6d2b
Reviewed-on: https://chromium-review.googlesource.com/612063
Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47302}
This changes the baseline of an inspector test setting breakpoints
within an asm.js module while the module is being executed. With the
validator it is not supported to switch from active WebAssembly code
back to debuggable interpreter code. Hence some previously expected
breakpoints no longer fire, the behavior is consistent across all
configurations now though.
R=yangguo@chromium.org
TEST=inspector/debugger/asm-js-breakpoint-during-exec
BUG=v8:6166
Change-Id: Ie1bb62fa6df28b10336b4cb5d381d2141eec356c
Reviewed-on: https://chromium-review.googlesource.com/608977
Reviewed-by: Yang Guo <yangguo@chromium.org>
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47301}
This patch merges ObjectMarking and MarkingState. The new marking state
encapsulates object marking, live byte tracking, and access atomicity.
The old ObjectMarking calls are now replaced with calls to marking
state. For example:
ObjectMarking::WhiteToGrey<kAtomicity>(obj, marking_state(obj)
becomes
marking_state()->WhiteToGrey(obj)
This simplifies custom handling of live bytes and allows to chose
atomicity of markbit accesses depending on collector's state.
This also decouples marking bitmap from the marking code, which will
allows in future to use different data-structure for mark-bits.
Bug: chromium:694255
Change-Id: Ifb4bc0144187bac1c08f6bc74a9d5c618fe77740
Reviewed-on: https://chromium-review.googlesource.com/602132
Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47288}
Deletes AstGraphBuilder and associated classes now that it is
unreachable. The following classes are also removed:
- ControlBuilders
- JSFrameSpecialization
- AstLoopAssignmentAnalysis
Also removes flags from compilation-info which are no longer used, and removes
the no-deoptimization paths from TypedOptimization, JsTypedLowering,
JSIntrinsicLowering and JSBuiltinLowering.
BUG=v8:6409
Change-Id: I63986e8e3497bf63c4a27ea8ae827b8a633d4a26
Reviewed-on: https://chromium-review.googlesource.com/583652
Commit-Queue: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47284}
This is a pure renaming CL; no functionality changes.
R=mtrofin@chromium.org
Bug:
Change-Id: I2f8262bdb17b9256d5b66fad56a7e51063f6f0d9
Reviewed-on: https://chromium-review.googlesource.com/610007
Reviewed-by: Mircea Trofin <mtrofin@chromium.org>
Commit-Queue: Ben Titzer <titzer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47282}
protocol::HashMap(std::unordered_map)::iterator doesn't provide any
guarantees about iteration order. At least Visual C++ from vS 2015 and
clang compile for loop inside forEachSession differently.
For tests we need stable order of iteration, so let's use std::map
instead.
R=dgozman@chromium.org
Bug: none
Cq-Include-Trybots: master.tryserver.blink:linux_trusty_blink_rel
Change-Id: I329cb24cd182baa86c0ea4a526257856718f32b1
Reviewed-on: https://chromium-review.googlesource.com/609489
Reviewed-by: Dmitry Gozman <dgozman@chromium.org>
Commit-Queue: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47281}
When lazy-compiling, it is important we reconstitute the
ModuleEnv accurately. Besides addressing a bug, this change
also does away with the need to relocate memory and globals
parameters (in lazy compilation), by using "the right ones" upfront.
Bug: chromium:753496
Change-Id: I1412a499f05d02d49319fced1b3047698328f3b5
Reviewed-on: https://chromium-review.googlesource.com/609376
Reviewed-by: Brad Nelson <bradnelson@chromium.org>
Commit-Queue: Brad Nelson <bradnelson@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47280}
Removes the pathways to use Full-Codegen from compiler.cc. Also removes all
paths to optimize using AstGraphBuilder, which relies on Full-codegen.
Cleans up ast-numbering, runtime-profiler and some runtime functions to
remove now dead code.
This makes Full-codegen and AstGraphBuilder dead, but doesn't remove their
code yet, that will be done in a followup CL to keep things reviewable.
BUG=v8:6409
Change-Id: I3901ff17d960b2bb084cef0cb39fa16cb8419881
Reviewed-on: https://chromium-review.googlesource.com/583328
Commit-Queue: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47277}
This is in preparation to the removal of the FullCodeGenerator, we no
longer need the ability to stress the underlying implementation.
R=rmcilroy@chromium.org
BUG=v8:6409
Cq-Include-Trybots: master.tryserver.v8:v8_linux_noi18n_rel_ng
Change-Id: Iad3177d6de4a68b57c12a770b6e85ed7a9710254
Reviewed-on: https://chromium-review.googlesource.com/584747
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47276}
This test started failing on arm64-debug-nosnap builds since we'd have
leftover NEVER_EVACUATE code-space pages from Isolate initialization.
Ensure that we exhaust all such pages and overflow into LO_SPACE before
continuing into the real test, and simply generate dummy code instead of
copying a fake CEntryStub.
Bug: v8:6690
Change-Id: I3889b5818e2467dcdce3485f1372f3b7383478f4
Reviewed-on: https://chromium-review.googlesource.com/608139
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47273}
Previously we could not support these due to their unique memory layout
including off-heap backing store allocations. We now serialize these
allocations and then fix-up references to them in the PostProcess step
of deserialization.
Bug: v8:6691
Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng
Change-Id: Ic215049c06e6ee655bd17c11dfab0d8630568a84
Reviewed-on: https://chromium-review.googlesource.com/597709
Reviewed-by: Yang Guo <yangguo@chromium.org>
Commit-Queue: Peter Marshall <petermarshall@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47271}
Original intention of longScript was to check how hashing works with long
script source. Current implementation calculates hash for longString function,
it's non reliable since Function.toString is still not specified and can return
different line endings on different architectures.
TBR=dgozman@chromium.org
Bug: none
Change-Id: I4c5b6f30c2849a1a2702c74665b86ced731f1b28
Reviewed-on: https://chromium-review.googlesource.com/609486
Reviewed-by: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org>
Commit-Queue: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47268}
On context destroyed we discard corresponded injected-script and won't be able to wrap async evaluation result, so we can resolve callback with an error right now.
R=dgozman@chromium.org
Bug: none
Cq-Include-Trybots: master.tryserver.blink:linux_trusty_blink_rel
Change-Id: Ib62f255297f306ad9f2c96a2a5b80e4b5aa33475
Reviewed-on: https://chromium-review.googlesource.com/604213
Commit-Queue: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org>
Reviewed-by: Dmitry Gozman <dgozman@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47267}
Most methods on runtime agent are available when agent is disabled, we compile
injected-script lazily and should not invalidate it on runtime.disable since it
will invalidate all related objectIds.
R=dgozman@chromium.org
Bug: none
Cq-Include-Trybots: master.tryserver.blink:linux_trusty_blink_rel
Change-Id: I86f3c5d6908862cd4c0847c433f35a6d83c6396b
Reviewed-on: https://chromium-review.googlesource.com/607153
Commit-Queue: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org>
Reviewed-by: Dmitry Gozman <dgozman@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47265}
This reverts commit b35a0789bc.
Reason for revert: Roll blocker for https://chromium-review.googlesource.com/c/607193
Original change's description:
> [heap, runtime] Fix conversion of large strings to thin strings.
>
> This patch removes creation of fillers in the middle of a large page and
> fixes assert in Heap::NotifyObjectLayoutChange.
>
> The fillers in large pages are useless since we do not sweep large
> object space.
>
> Bug: chromium:752426
> Change-Id: I01c230223f28d6d54b7362ee70e9d83de50678fd
> Reviewed-on: https://chromium-review.googlesource.com/601994
> Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
> Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
> Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#47221}
TBR=ulan@chromium.org,jkummerow@chromium.org,mlippautz@chromium.org
# Not skipping CQ checks because original CL landed > 1 day ago.
Bug: chromium:752426
Change-Id: I58a632af37fa018d82693099a7a395ca5db5af0f
Reviewed-on: https://chromium-review.googlesource.com/609404
Reviewed-by: Michael Hablich <hablich@chromium.org>
Commit-Queue: Michael Hablich <hablich@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47262}
This changes the DCHECK (which could correctly fail) to be part of the
conditional that checks if we're in an async function.
Bug: chromium:751789
Change-Id: I3b8c1239ac93190055622c41fa1122e83b69d255
Reviewed-on: https://chromium-review.googlesource.com/607356
Reviewed-by: Daniel Ehrenberg <littledan@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Sathya Gunasekaran <gsathya@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47261}
This reverts commit decf5750c6.
Reason for revert: broken layout tests
Original change's description:
> [runtime] Store hash code in length field
>
> Store the hash code in 21 bits of the length field.
>
> Change the GetIdentityHash API to be unhandlified, since there's no
> property lookup anymore.
>
> Update js/ and test/ to match new API and expections.
>
> Bug:
> Change-Id: I8dc75de4021f59e79b45f3f38ec997c3b3687b24
> Reviewed-on: https://chromium-review.googlesource.com/589688
> Commit-Queue: Sathya Gunasekaran <gsathya@chromium.org>
> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
> Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
> Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#47259}
TBR=ulan@chromium.org,jkummerow@chromium.org,mstarzinger@chromium.org,cbruni@chromium.org,gsathya@chromium.org
Change-Id: I32db9c20a51b2401464924cafea502628a0d0b92
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/609322
Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org>
Commit-Queue: Sathya Gunasekaran <gsathya@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47260}
Store the hash code in 21 bits of the length field.
Change the GetIdentityHash API to be unhandlified, since there's no
property lookup anymore.
Update js/ and test/ to match new API and expections.
Bug:
Change-Id: I8dc75de4021f59e79b45f3f38ec997c3b3687b24
Reviewed-on: https://chromium-review.googlesource.com/589688
Commit-Queue: Sathya Gunasekaran <gsathya@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47259}
There are two reasons for Scopes to need information about eval calls
inside them:
- Eval in a scope, or any of its inner scopes, turns off a bunch of
scope analysis optimizations (e.g., all variables have to be treated
as "used" and context-allocated).
- Eval in a sloppy declaration scope means allows runtime addition
of var declarations.
This patch aims to make the code better-reflect this reality.
It's meant as a pure cleanup, with no expected change in behavior.
Change-Id: I744c5051bb7a90b11420930e9596e5d6c35eb440
Reviewed-on: https://chromium-review.googlesource.com/602848
Commit-Queue: Adam Klein <adamk@chromium.org>
Reviewed-by: Marja Hölttä <marja@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47257}
AsyncGenerators, when resumed with a "return" completion, Await the sent
value to provide consistency with syntactic return statements. This
moves the await to during AsyncGeneratorResumeNext, shrinking the number
of bytecodes.
There's a minor change to BytecodeGenerator which removes a
%_GeneratorClose() call, since it's inserted implicitly by the parser.
BUG=v8:5855
TBR=neis@chromium.org
Change-Id: I2965c610e5985ac24c713b481e62f6b97f96a3d8
Reviewed-on: https://chromium-review.googlesource.com/582218
Commit-Queue: Caitlin Potter <caitp@igalia.com>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47253}
Because SizeFor only returns aligned values, when we check values
returned there against kMaxSize, they can be larger if they were
rounded up.
It wasn't possible to write a test for the 2-byte version that didn't
regularly OOM.
Bug: chromium:752764
Change-Id: Id2f387449e0fafe633a2fde1ac728be31487f62d
Reviewed-on: https://chromium-review.googlesource.com/607935
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Commit-Queue: Peter Marshall <petermarshall@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47252}
Splits out AttachOuterScopeInfo from DeclarationScope::Analyze and attaches
the outer scope info after parsing has completed (when parsing on the main
thread, which is the only time we have an outer scope info) instead of
during Compiler::Analyse().
BUG=v8:5203
TBR=yangguo@chromium.org
Change-Id: Idd8d2409fb20f09a9f6bbf5cff7e6edcf90077d7
Reviewed-on: https://chromium-review.googlesource.com/605889
Commit-Queue: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Marja Hölttä <marja@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47243}
- Previous fix is https://chromium-review.googlesource.com/c/583531 but it
diverges Scopes created by PreParser from Scopes created by Parser.
- This CL creates the inner block scope a bit earlier and (temporarily) pushes
it into the scope chain for parsing the variable declarations in a for
loop. The previous approach was to first parse the variable declarations and
then reparent the AST nodes / Scopes created while parsing it afterwards.
- This CL partially reverts https://chromium-review.googlesource.com/c/583531;
the new fix only touches parser-base.h (diff between patch sets 2 and 3 is the
fix).
- The Ignition golden changes are basically undoing the changes done in that CL
too.
Bug: chromium:740591
Change-Id: Iceff1383ef066317e754942bb5ff0c70a91bc937
Reviewed-on: https://chromium-review.googlesource.com/603787
Commit-Queue: Marja Hölttä <marja@chromium.org>
Reviewed-by: Adam Klein <adamk@chromium.org>
Reviewed-by: Georg Neis <neis@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47241}
To speed up compilation times, jumbo allows files to be compiled
together. This is a well known method ("unity builds") to both
compile faster and create a poor man's "full program optimization".
We are only interested in compile times.
Background:
https://chromium.googlesource.com/chromium/src/+/master/docs/jumbo.md
Note that jumbo builds are not enabled by default. To try this out,
add use_jumbo_build=true to your GN args.
BUG=chromium:746958
Cq-Include-Trybots: master.tryserver.blink:linux_trusty_blink_rel
Change-Id: Ieb9fdccb6c135e9806dbed91c09a29aa8b8bee11
Reviewed-on: https://chromium-review.googlesource.com/579090
Commit-Queue: Mostyn Bramley-Moore <mostynb@opera.com>
Reviewed-by: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Marja Hölttä <marja@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47239}
This fixes a bug affecting module namespace objects, which are currently
implemented using native accessors.
Bug: v8:6681, v8:1569
Change-Id: I6a678652573a332c47315497d927c390d9da0926
Reviewed-on: https://chromium-review.googlesource.com/606027
Commit-Queue: Georg Neis <neis@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47238}
This reverts commit 649b1e70e7.
Reason for revert: A1 Jetstream bots are still failing.
Original change's description:
> [wasm] Reland "[wasm] redirect wasm calls to js functions through a GCed table"
>
> This reverts commit 25f03308a7.
>
> Reason for revert: Fix the cause of bot failure and reland
>
> Original change's description:
> > Revert "[wasm] redirect wasm calls to js functions through a GCed table"
> >
> > This reverts commit eb65f35e96.
> >
> > Reason for revert: Broke jetstream benchmark on android.
> >
> > BUG=chromium:750828
> >
> > Original change's description:
> > > [wasm] redirect wasm calls to js functions through a GCed table
> > >
> > > With this patch, rather than embedding the JSReceiver address directly
> > > in the WasmToJS wrappers, we put that in a fixed array with global handle
> > > scope and instead embed the location of the handle and the index in the
> > > wrapper. This ensures that the wrapper doesn't need to be patched if the
> > > GC kicks in. This is needed to get the WASM code off the GCed heap.
> > >
> > > R=mtrofin@chromium.org
> > >
> > > Bug:
> > > Change-Id: Ie5a77a78cdecec51b04f702c63b8e4285e6a2d8d
> > > Reviewed-on: https://chromium-review.googlesource.com/581682
> > > Commit-Queue: Aseem Garg <aseemgarg@chromium.org>
> > > Reviewed-by: Mircea Trofin <mtrofin@chromium.org>
> > > Cr-Commit-Position: refs/heads/master@{#46884}
> >
> > TBR=mtrofin@chromium.org,aseemgarg@google.com,aseemgarg@chromium.org,clemensh@chromium.org
> >
> > # Not skipping CQ checks because original CL landed > 1 day ago.
> >
> > Change-Id: I26f49ee0a1fe73cc5d8852ded87b56638be39ebf
> > Reviewed-on: https://chromium-review.googlesource.com/596268
> > Commit-Queue: Aseem Garg <aseemgarg@chromium.org>
> > Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
> > Cr-Commit-Position: refs/heads/master@{#47059}
>
> R=mtrofin@chromium.org,aseemgarg@google.com,aseemgarg@chromium.org,clemensh@chromium.org,sullivan@chromium.org
>
> Change-Id: I29ef35f6e612a706d9f571da3e7beb1da8b5052b
> Bug: chromium:750828
> Reviewed-on: https://chromium-review.googlesource.com/597010
> Commit-Queue: Aseem Garg <aseemgarg@chromium.org>
> Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#47177}
TBR=bradnelson@chromium.org,sullivan@chromium.org,mtrofin@chromium.org,aseemgarg@google.com,aseemgarg@chromium.org,clemensh@chromium.org
Bug: chromium:750828
Change-Id: I04b12c0eb0705ad809822a7d7461423be77d942a
Reviewed-on: https://chromium-review.googlesource.com/606867
Commit-Queue: Aseem Garg <aseemgarg@chromium.org>
Reviewed-by: Aseem Garg <aseemgarg@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47231}
This CL consolidates ownership of parameters used to compile code (which
we always specialize) in 2 places:
- ModuleEnv for compile-time data
- WasmCompiledModule for runtime data
The parameters in question are: memory size and start; globals start;
address of indirect function tables (and their signatures, respectively);
and address to be used for wasm call sites.
Ideally, we'd collapse this down to one place, however, we need
specialization data to survive serialization. We can achieve this we get off
the GC heap and use a different wasm code serializer.
The CL:
- removes aliasing of parts of the specialization data, and moves
to using ModuleEnv as a token of passing around compile-time data, instead
of a mixture of ModuleEnv, WasmInstance, and some other structures. ModuleEnv
is responsible for providing a consistent view of the specialization data,
e.g. valid memory sizes (multiples of page size), and matching sized function
tables and signatures.
- removes WasmInstance, as its data is now contained by ModuleEnv.
- removes ModuleBytesEnv. We now pass the wire bytes explicitly. They can't
always be assumed as present (e.g. streaming compilation), and probably more
refactoring may need to happen once streaming compilation lands and we
better understand our dependencies.
Change-Id: Id7e6f2cf29e51b5756eee8b6f8827fb1f375e5c3
Reviewed-on: https://chromium-review.googlesource.com/592531
Commit-Queue: Mircea Trofin <mtrofin@chromium.org>
Reviewed-by: Ben Titzer <titzer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47229}
Add support for the simulation of MIPS SIMD MI10 instruction group,
which included Load Vector and Store Vector instructions. Add
corresponding test for these instructions.
Bug:
Change-Id: I7cbc9d8dff2a779d9a716f539cd9a2bbb8ac694a
Reviewed-on: https://chromium-review.googlesource.com/595567
Reviewed-by: Miran Karić <Miran.Karic@imgtec.com>
Commit-Queue: Ivica Bogosavljevic <ivica.bogosavljevic@imgtec.com>
Cr-Commit-Position: refs/heads/master@{#47226}
A spec change (a0dfeba1a8) introduced a number of Await operations to the spec. In turn, this caused generated bytecode for async generators to grow drastically.
This commit moves the Await within AsyncGeneratorYield (https://tc39.github.io/proposal-async-iteration/#sec-asyncgeneratoryield step 5) into a new TFJ builtin, similar in structure to AsyncGeneratorAwait, but instead of resuming the generator on resolution of the Promise, the current generator request's Promise is fulfilled instead.
This results in a reduction in generated bytecode without losing any statically available information.
BUG=v8:5855
Change-Id: Ib5bcf06132d221beffdea30639a7b4437030143b
Reviewed-on: https://chromium-review.googlesource.com/582487
Commit-Queue: Caitlin Potter <caitp@igalia.com>
Reviewed-by: Georg Neis <neis@chromium.org>
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47224}
This patch removes creation of fillers in the middle of a large page and
fixes assert in Heap::NotifyObjectLayoutChange.
The fillers in large pages are useless since we do not sweep large
object space.
Bug: chromium:752426
Change-Id: I01c230223f28d6d54b7362ee70e9d83de50678fd
Reviewed-on: https://chromium-review.googlesource.com/601994
Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47221}
This moves deserializer setup boilerplate inside the deserializers, and
makes improper usage less likely. For instance:
ObjectDeserializer deserializer(&scd);
/* ... deserializer setup ... */
MaybeHandle<HeapObject> obj = deserializer.Deserialize(isolate);
/* ... result checks and casts ... */
has now become:
/* All setup and casts inside deserializer, impossible to illegally
use the same instance multiple times. */
MaybeHandle<SharedFunctionInfo> maybe_result =
ObjectDeserializer::DeserializeSharedFunctionInfo(
isolate, &scd, source);
Bug: v8:6624
Change-Id: Id5a1848e024e89cf86e5292389ba7c89f31d8e6b
Reviewed-on: https://chromium-review.googlesource.com/604791
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47219}
This avoid introduction of {TypeGuard} nodes during load elimination.
Such type guard could lead to contradicting type information where a
constant {NumberConstant} node was guarded to have {ExternalPointer}
type, which would lead to an impossible constraint on representation
selection.
R=jarin@chromium.org
TEST=mjsunit/regress/regress-crbug-752826
BUG=chromium:752826
Change-Id: Ida3815af24ccc8a48474b8d66117b9718f61adda
Reviewed-on: https://chromium-review.googlesource.com/605547
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47218}
This makes sure we perform a proper holder lookup when trying to inline
API accessors calls in TurboFan. Inlining is completely disabled in case
the holder is not found, otherwise the appropriate holder is passed via
the {PropertyAccessInfo} structure (if different from the receiver).
R=bmeurer@chromium.org
TEST=cctest/test-api/ReceiverSignature
BUG=chromium:752149
Change-Id: I7b192724afd99d651b6477b2f2c8b403a10efb9d
Reviewed-on: https://chromium-review.googlesource.com/603615
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47216}
This code appears to have been wrong forever, as it only
threw in strict mode (presumably predating ES2015 const).
In order to get exactly the right behavior, special
handling of sloppy named function expressions is required.
Rather than polluting PropertyAttributes with another
dummy value, this CL simply adds a bool output argument
to Context::Lookup to indicate that case.
Bug: v8:6677
Change-Id: I34daa5080d291808f10cbaefc91d716f0b22963b
Reviewed-on: https://chromium-review.googlesource.com/602690
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Adam Klein <adamk@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47207}
The ConstructFunctionForwardVarargs and ConstructForwardVarargs
builtins, which are used when inlining the Reflect.construct
builtin into TurboFan optimized code, didn't properly check the
new.target parameter whether it's a constructor.
Bug: chromium:752481
Change-Id: I9b8f8c429d6eaed0ff8d27fc3f6b52eb906766a2
Reviewed-on: https://chromium-review.googlesource.com/604187
Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47206}
This is part of the effort to consolidate the ownership of
wasm instantiation/specialization parameters.
This change is focused solely on the interpreter part of that effort, to
verify we're not regressing performance in interpreter benchmarks.
There are two aspects being addressed:
- dataflow-wise, we always fetch the interpreter's memory view from the
runtime objects (i.e. WasmInstanceObject/WasmCompiledModule). This is
consistent with how other instance-specific information is obtained
(e.g. code, indirect functions).
- representation-wise, we do not reuse ModuleEnv/WasmInstance just for
the memory view, because it is surprising that other instance info isn't
accessed from there.
Bug:
Change-Id: I536fbffd8e1f142a315fa1770ba9b08319f56a8e
Reviewed-on: https://chromium-review.googlesource.com/602083
Reviewed-by: Ben Titzer <titzer@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Commit-Queue: Mircea Trofin <mtrofin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47205}
Currently only A test operators had output, but since ABReducer and BCReducer
perform in-place replacement of A nodes into B nodes, and then sometimes into
C nodes, we need B and C nodes to have as many outputs. Otherwise, we run into
a situation where a node {x} has a use {y}, but its operators has 0 outputs,
which is inconsistent.
Bug:
Change-Id: I0f73b83d2115dfeda3c9cbc97b9a2fc168f4c31b
Reviewed-on: https://chromium-review.googlesource.com/603716
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Commit-Queue: Alexandre Talon <alexandret@google.com>
Cr-Commit-Position: refs/heads/master@{#47202}
This reverts commit 15ef03cbf3.
Reason for revert: Found the following bugs
Bug: chromium:752846, chromium:752712, chromium:752850
Original change's description:
> Reland "[builtins] Port getting property from Proxy to CSA"
>
> This reland is after fix in [heap] Delete wrong DCHECK.
> It includes moving ProxyGetProperty to its own stub to reduce
> binary size.
>
> This is a reland of 47a97aa53b
> Original change's description:
> > [builtins] Port getting property from Proxy to CSA
> >
> > Bug: v8:6559, v8:6557
> > Change-Id: If6c51f5483adb73ddd2495cede5d85e887a3c298
> > Reviewed-on: https://chromium-review.googlesource.com/589212
> > Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
> > Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
> > Commit-Queue: Maya Lekova <mslekova@google.com>
> > Cr-Commit-Position: refs/heads/master@{#47113}
>
> Bug: v8:6559, v8:6557
> Change-Id: I76acd97ba1acb62b7e7983db1741441d997050f0
> Reviewed-on: https://chromium-review.googlesource.com/600215
> Commit-Queue: Maya Lekova <mslekova@google.com>
> Reviewed-by: Jakob Gruber <jgruber@chromium.org>
> Reviewed-by: Franziska Hinkelmann <franzih@chromium.org>
> Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#47159}
TBR=jkummerow@chromium.org,mstarzinger@chromium.org,franzih@chromium.org,jgruber@chromium.org,ishell@chromium.org,bmeurer@chromium.org,mslekova@google.com
# Not skipping CQ checks because original CL landed > 1 day ago.
Change-Id: I51bef25a031b02cf4deab11282473acae57f1ed3
Reviewed-on: https://chromium-review.googlesource.com/603708
Commit-Queue: Maya Lekova <mslekova@google.com>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47200}
The interpreter was not able to call imported wasm functions (hitting
UNIMPLEMENTED). This CL fixes this by creating a "CWasmEntry", which is
signature-specific. It has JS linkage and receives the wasm code object
to call and a buffer containing all arguments (similar to the
interpreter entry). It loads all arguments from the buffer and calls the
given code object.
The c-wasm-entry code objects are cached per instance, such that we
only create them once per signature.
These wasm entry stubs will also allow us to call back to compiled code
from the interpreter, which we might want to do to reduce the slowdown
of executing wasm for debugging.
R=titzer@chromium.org
Bug: chromium:735792
Change-Id: I7fecec3a7bec62a9de40fff115b684759b12a28b
Reviewed-on: https://chromium-review.googlesource.com/600308
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Ben Titzer <titzer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47195}
I want to reuse the PassType helper in another CL, thus move it from
logging.h to template-utils.h, and rename it to pass_value_or_ref to
match other helpers there.
Also, add a boolean template parameter to declare whether array
dimensions should be removed. The default is to do so, which helps to
reduce the number of template instantiations by always passing arrays
as pointers.
Also, fix the usages in logging.h to actually use that helper when
instantiating other template functions. This will reduce the number of
instantiations.
And finally, we now have unit tests for the template utils, to document
what we expect, and test that this works on all architectures.
R=ishell@chromium.org, tebbi@chromium.org
Change-Id: I1ef5d2a489a5cfc7601c5ab13748674e3aa86cd6
Reviewed-on: https://chromium-review.googlesource.com/594247
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47191}
This reverts commit 25f03308a7.
Reason for revert: Fix the cause of bot failure and reland
Original change's description:
> Revert "[wasm] redirect wasm calls to js functions through a GCed table"
>
> This reverts commit eb65f35e96.
>
> Reason for revert: Broke jetstream benchmark on android.
>
> BUG=chromium:750828
>
> Original change's description:
> > [wasm] redirect wasm calls to js functions through a GCed table
> >
> > With this patch, rather than embedding the JSReceiver address directly
> > in the WasmToJS wrappers, we put that in a fixed array with global handle
> > scope and instead embed the location of the handle and the index in the
> > wrapper. This ensures that the wrapper doesn't need to be patched if the
> > GC kicks in. This is needed to get the WASM code off the GCed heap.
> >
> > R=mtrofin@chromium.org
> >
> > Bug:
> > Change-Id: Ie5a77a78cdecec51b04f702c63b8e4285e6a2d8d
> > Reviewed-on: https://chromium-review.googlesource.com/581682
> > Commit-Queue: Aseem Garg <aseemgarg@chromium.org>
> > Reviewed-by: Mircea Trofin <mtrofin@chromium.org>
> > Cr-Commit-Position: refs/heads/master@{#46884}
>
> TBR=mtrofin@chromium.org,aseemgarg@google.com,aseemgarg@chromium.org,clemensh@chromium.org
>
> # Not skipping CQ checks because original CL landed > 1 day ago.
>
> Change-Id: I26f49ee0a1fe73cc5d8852ded87b56638be39ebf
> Reviewed-on: https://chromium-review.googlesource.com/596268
> Commit-Queue: Aseem Garg <aseemgarg@chromium.org>
> Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#47059}
R=mtrofin@chromium.org,aseemgarg@google.com,aseemgarg@chromium.org,clemensh@chromium.org,sullivan@chromium.org
Change-Id: I29ef35f6e612a706d9f571da3e7beb1da8b5052b
Bug: chromium:750828
Reviewed-on: https://chromium-review.googlesource.com/597010
Commit-Queue: Aseem Garg <aseemgarg@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47177}
This was suggested by bmeurer after running into the confusing
example of:
x => {x:x}
which might appear to be an arrow function that returns an object
literal containing its argument, but instead is an arrow function
that does nothing.
While it's unclear whether the language would change to make this
probable programmer error an actual syntax error, we can at least
gather some data on the question of whether we see any such code
in the wild.
Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng
Change-Id: I08202039ecf7a7a4c71ad95ecd839436b4ec2af8
Reviewed-on: https://chromium-review.googlesource.com/600888
Commit-Queue: Adam Klein <adamk@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Marja Hölttä <marja@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47171}
In some cases, PreParser cannot replicate the Scope structure created by
Parser. It happens esp. with arrow function parameters, since the relevant
information is already lost by the time we figure out it's an arrow function.
In these cases, PreParser should bail out of trying to create data for skipping
inner functions.
Implementation notes:
- The arrow function case is more fundamental; the non-arrow case could be
hacked together somehow if we implemented tracking is_simple for each param
separately; but now that it's possible to bail out consistently from both
cases, I don't think the is_simple complication is worth it.
- The added mjsunit test cases are based on the test262 test cases which exposed
the problem.
- cctest/preparser/PreParserScopeAnalysis was exercising similar cases, but the
problem didn't show up because the function parameters didn't contain
skippable functions. Those test cases have been repurposed for testing the
bailout.
- Extra precaution: the bailout tests are in a separate file, to guard from the
bug that a bailout case results in bailing out of *all* data creation, which
would make all skipping tests in the same file useless.
BUG=v8:5516
Change-Id: I4324749a5ec602fa5d7dc27647ade0284a6842fe
Reviewed-on: https://chromium-review.googlesource.com/599849
Reviewed-by: Adam Klein <adamk@chromium.org>
Commit-Queue: Marja Hölttä <marja@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47170}
And then lower it afterwards. This is more future-proof for
multi-return values.
R=titzer@chromium.org
CC=rossberg@chromium.org
Bug: v8:6672
Change-Id: I6505b049275360c32530992c1db8765254b405c1
Reviewed-on: https://chromium-review.googlesource.com/602036
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Ben Titzer <titzer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47166}
Moves the construction of CompilationInfo for unoptimized code into
GenerateUnoptimizedCode in preparation for making it owned by the
unoptimized compilation jobs (to be done in a followup CL).
This CL also adds a new constructor for creation of unoptimized
CompilationInfos with fields correctly initialized and updates the existing
constructor to he exclusively for optimized compilation. Finally, also moves
the call to RecordFunctionCompilation with LAZY_COMPILE_TAG recording into
FinalizeUnoptimizedCompilationJob where it is called for other unoptimized
compiles.
BUG=v8:5203,v8:6659
Change-Id: Icfd7f56588073f2fc547e002db9fa99843ed2e8b
Reviewed-on: https://chromium-review.googlesource.com/598908
Commit-Queue: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Marja Hölttä <marja@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47160}
This reland is after fix in [heap] Delete wrong DCHECK.
It includes moving ProxyGetProperty to its own stub to reduce
binary size.
This is a reland of 47a97aa53b
Original change's description:
> [builtins] Port getting property from Proxy to CSA
>
> Bug: v8:6559, v8:6557
> Change-Id: If6c51f5483adb73ddd2495cede5d85e887a3c298
> Reviewed-on: https://chromium-review.googlesource.com/589212
> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
> Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
> Commit-Queue: Maya Lekova <mslekova@google.com>
> Cr-Commit-Position: refs/heads/master@{#47113}
Bug: v8:6559, v8:6557
Change-Id: I76acd97ba1acb62b7e7983db1741441d997050f0
Reviewed-on: https://chromium-review.googlesource.com/600215
Commit-Queue: Maya Lekova <mslekova@google.com>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Franziska Hinkelmann <franzih@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47159}
Calling the Array constructor is an edge case, and we don't seem to
benefit from doing the AllocationSite tracking there as well. In fact
it's a lot of complexity and somewhat blocking the more important
optimization of the subclass constructors.
This is an attempt to nuke the CallIC support for AllocationSites. If
it regresses something important, we'll have to find another way.
Bug: v8:6399
Change-Id: I56f6da29679c516f0a5c3161c2696fc2b8762176
Reviewed-on: https://chromium-review.googlesource.com/600968
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47158}
In order to limit the overall length of error message, limit the output
of string provided by the user. This is implemented by a helper class
which takes the maximum length as template argument and has simple
accessors for the start address and the length of the truncated string.
This is the compromise CL after
https://chromium-review.googlesource.com/c/566815 and
https://chromium-review.googlesource.com/c/594288.
R=titzer@chromium.org
Bug: chromium:740023, chromium:749041, v8:6634
Change-Id: I7c154eb18b3a6befd5ecabbd2f435b015ad71542
Reviewed-on: https://chromium-review.googlesource.com/600547
Reviewed-by: Ben Titzer <titzer@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47157}
This fixes a missing fast-path check in the code-stub implementation of
the {Array.prototype.filter} method. Appending to the target JSArray is
only correct if the underlying length did not change.
R=jgruber@chromium.org
TEST=mjsunit/regress/regress-6657
BUG=v8:6657
Change-Id: Ida8d3511485b649b70d9a4b161742d494ebe4dac
Reviewed-on: https://chromium-review.googlesource.com/600467
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47156}
On advancing the iterator we need to reset the current object,
so that it can be lazily reloaded later on.
TBR=mlippautz@chromium.org
Bug: chromium:694255
Change-Id: If7ddd8670df9d11837f491503312919b55b451fe
Reviewed-on: https://chromium-review.googlesource.com/600687
Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47142}
Make sure to fail PrepareTransfer when the transferables array contains
a non-ArrayBuffer, otherwise the function leaks a scheduled_exception.
Bug: chromium:736565
Change-Id: I64c2e09eb92720519c7bda2dca41749ff5ac9c8d
Reviewed-on: https://chromium-review.googlesource.com/599357
Commit-Queue: Ben Smith <binji@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47141}
Change-Id: I42f51fd00b1a21a1ff7ef2379fbf81a42266a737
Reviewed-on: https://chromium-review.googlesource.com/599111
Reviewed-by: Georg Neis <neis@chromium.org>
Commit-Queue: Adam Klein <adamk@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47137}
An optimization in li checks if a value has all their "n" LSBs set to
one, and their "64-n" MSBs set to zero. This is done by checking
base::bits::IsPowerOfTwo(value + 1), but this doesn't cover the case
when only MSB is zero, and other bits are one. Added another check that
covers the missing case, this also fixes Dsubu test.
BUG=
TEST=cctest/test-assembler-mips/Dsubu
Change-Id: I97b8fb4984af3b7f974ba901e3a1a9c89e925805
Reviewed-on: https://chromium-review.googlesource.com/598228
Reviewed-by: Ivica Bogosavljevic <ivica.bogosavljevic@imgtec.com>
Commit-Queue: Miran Karić <Miran.Karic@imgtec.com>
Cr-Commit-Position: refs/heads/master@{#47134}
This mitigates the problem of blocking on the main thread when the
platform is unable to execute background tasks in a timely manner.
Bug: v8:6671
Change-Id: I741d4b7594e8d62721dad32cbfb19551ffacd0c3
Reviewed-on: https://chromium-review.googlesource.com/599528
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47126}
For determining whether unaligned memory accessed is allowed, it is
actually sufficient to pass the MachineRepresentation instead of the
MachineType.
As the MachineRepresentation is an enum, this allows to store the set
of unsupported types as an EnumSet instead of std::vector.
R=mstarzinger@chromium.org
Change-Id: Ibe44717bae3a6034bae683057e80bd40d92e70ae
Reviewed-on: https://chromium-review.googlesource.com/598790
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47123}
Don't hold a pointer to parse_info in compilation_info, and instead explicitly
add the fields needed in compiation_info. The intention is to make ParseInfo
only actually needed for parsing, and eventually make it possible to compile
with only a CompileInfo.
BUG=v8:5203
Change-Id: Iecd39245e44c218874401c3991eeaf3ceef2816f
Reviewed-on: https://chromium-review.googlesource.com/595738
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Ross McIlroy <rmcilroy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47119}
The {alignment} parameter in {UnalignedLoadSupported} and
{UnalignedStoreSupported} is never being used.
This CL removes it from several interfaces and users.
R=mstarzinger@chromium.org
Change-Id: Iad5a638b7ed358beeed42f0ea7308dc04f1ed23e
Reviewed-on: https://chromium-review.googlesource.com/598788
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47115}
Since frames.h no longer defines basic register types like RegList, it
is no longer necessary to include it in the macro assemblers.
Next step: split out frame-constants.h from frames.h so that it will be
possible to get frame constants without include the stackwalking logic,
which needs objects.h.
R=mstarzinger@chromium.org
Bug:
Change-Id: Ia12d3c8a8d46a73106c3c90bcb4b470c85f1eaa7
Reviewed-on: https://chromium-review.googlesource.com/597788
Commit-Queue: Ben Titzer <titzer@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47114}
The ScheduledErrorThrower is also needed in the wasm-async fuzzer so I
moved the implementation from wasm-js.cc to wasm-api.[h|cc].
R=clemensh@chromium.org
Bug: chromium:749838
Change-Id: I49d7438d1ec0281285ce0c64ba462c22001be08e
Reviewed-on: https://chromium-review.googlesource.com/591447
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47112}
This removes the obsolete {Crankshaft} factory method as it returns the
same configuration as the {Turbofan} factory by now. We now consistently
use {RegisterConfiguration::Default} everywhere.
R=jkummerow@chromium.org
BUG=v8:6408
Change-Id: I6be25774aa6714ef4dc1ef6856bb6dbc95593a29
Reviewed-on: https://chromium-review.googlesource.com/597858
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47109}
This begins splitting up the Deserializer class into
{Object,Partial,Startup}Deserializer. For now, all functionality remains in
the Deserializer base clase, to be refactored in future CLs. Empty .cc files
are added here to avoid having to touch build files again.
Bug: v8:6624
Change-Id: If563e03492991bd55c91cd2e09312c0a26aaab2c
Reviewed-on: https://chromium-review.googlesource.com/598067
Reviewed-by: Yang Guo <yangguo@chromium.org>
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47107}
Previously TryToName bailed out for Oddball keys (i.e. when passing true
or false as the key), which meant that for example the generic
KeyedLoadIC would always bail out to the %KeyedGetProperty runtime
function. But handling Oddball keys is fairly easy, since every oddball
value carries it's unique string representation. Adding just this case
to the CodeStubAssembler::TryToName method boosts this simple
micro-benchmark by a factor of 4x:
const n = 1e7;
const obj = {};
const key = true;
console.time('foo');
for (let i = 0; i < n; ++i) {
if (obj[key] === undefined) {
obj[key] = key;
}
}
console.timeEnd('foo');
It also shows on the ARES-6 ML benchmark and on several Speedometer
tests, where objects are being used as dictionaries and the developers
rely on the implicit ToString conversions on the property accesses.
In the ARES-6 ML benchmark, the number of calls to %KeyedGetProperty
is reduced by 137,758.
Bug: v8:6278, v8:6344, v8:6670
Change-Id: Iaa965e30be4c247682a67ec09543655df9b761d2
Reviewed-on: https://chromium-review.googlesource.com/599527
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47105}
