We cannot tier up from interpreted to baseline code when there is an
activation of the function on the stack. This significantly regresses
the performance of recursive functions since they are unlikely to get
tiered up.
This CL adds the ability for a function to be marked for baseline
compilation when it returns. To do this we patch the
InterpreterEntryTrampoline return address to point to
InterpreterMarkBaselineOnReturn, which leaves the
interpreted frame and recompile the function for
baseline.
This improves the score of EarlyBoyer by ~8x for Ignition.
BUG=v8:4280
LOG=N
Review-Url: https://codereview.chromium.org/1965343002
Cr-Commit-Position: refs/heads/master@{#36360}
Script position calculation logic (i.e. line & column numbers for a
given code position) is now based on a single method
Script::GetPositionInfo(). Refactored related code in isolate.cc and
js/messages.js to use the new method and removed the line_ends JS
accessor.
R=yangguo@chromium.org
BUG=
Review-Url: https://codereview.chromium.org/1986173002
Cr-Commit-Position: refs/heads/master@{#36359}
This patch extracts typed slot processing logic from
the PointerUpdatingVisitor to a set of functions.
Each of these functions takes an untyped slot processing function
and applies it to a typed slot.
BUG=chromium:612847
LOG=NO
Review-Url: https://codereview.chromium.org/1991843003
Cr-Commit-Position: refs/heads/master@{#36357}
1) avoid the builder
2) by precomputing the result we're guaranteed to have a flat string
avoiding extra cost later of using the string
BUG=
Review-Url: https://codereview.chromium.org/1988023004
Cr-Commit-Position: refs/heads/master@{#36352}
Code in V8 embeds memory addresses. Upon deserialization, those addresses will
be updated anyways, so it's not important whether the serializer records those
addresses. In order to have a deterministic build, we create a copy of the code
and null out memory addresses and serialize this copy.
For the code cache, we do not care about determinism. By avoiding the copy we
can save some time spent on serialization. For the mandreel script in Octane,
this reduces the serialization time from ~85ms to ~75ms.
R=vogelheim@chromium.org
Review-Url: https://codereview.chromium.org/1991033003
Cr-Commit-Position: refs/heads/master@{#36350}
Empty function names are allowed and are output as such, unnamed
functions or functions with no valid UTF-8 name are output as
"<WASM UNNAMED>", while the CallSite object returns null as the
function name.
R=titzer@chromium.org, yangguo@chromium.org
Review-Url: https://codereview.chromium.org/1970503004
Cr-Commit-Position: refs/heads/master@{#36348}
The default value of the flag was true, so --intl_extra was not previously
unshipped. This patch sets it to false.
BUG=v8:3785
CQ_INCLUDE_TRYBOTS=tryserver.v8:v8_linux_noi18n_rel_ng
Review-Url: https://codereview.chromium.org/1990763003
Cr-Commit-Position: refs/heads/master@{#36346}
port 39738bc905 (r36310)
original commit message:
In order to support compiling to baseline on return we need to be able to
return to the actual return address. With this change this is what the
Return bytecode now does, removing the need for the
InterpreterExitTrampoline.
This change also removes the InterpreterNotifyDeoptXXX builtins and
unifies FCG and Igntion to both use NotifyDeoptXXX. As part of this
change, FullCodegenerator::State is moved to Deoptimize::BailoutState.
BUG=
Review-Url: https://codereview.chromium.org/1987053006
Cr-Commit-Position: refs/heads/master@{#36344}
Rolling v8/build to b2d15686436cdc17f67c3621c314f8d96b5b6fd9
Rolling v8/tools/clang to 996bab489f816e51dde704bd215fb3403919f07e
TBR=machenbach@chromium.org,vogelheim@chromium.org,hablich@chromium.org
Review-Url: https://codereview.chromium.org/1992113002
Cr-Commit-Position: refs/heads/master@{#36343}
This patch re-lands #36193 with a couple of minor tweaks
including updating the BUILD.gn file to use the new
variable name and incorporating thakis' request to support
cross-compiling the win snapshot from a mac.
R=thakis@chromium.org, jochen@chromium.org, machenbach@chromium.org
BUG=608596, 595653
CQ_INCLUDE_TRYBOTS=tryserver.chromium.linux:chromeos_daisy_chromium_compile_only_ng
Review-Url: https://codereview.chromium.org/1979883002
Cr-Commit-Position: refs/heads/master@{#36342}
Instead of directly looking up Uint8Array.__proto__, to get a hold of
the TypedArray prototype, use object_get_prototype_of. This is a
functionally equivalent, but cleaner approach.
Review-Url: https://codereview.chromium.org/1990983002
Cr-Commit-Position: refs/heads/master@{#36340}
port 39738bc905
Original Commit Message:
In order to support compiling to baseline on return we need to be able to
return to the actual return address. With this change this is what the
Return bytecode now does, removing the need for the
InterpreterExitTrampoline.
This change also removes the InterpreterNotifyDeoptXXX builtins and
unifies FCG and Igntion to both use NotifyDeoptXXX. As part of this
change, FullCodegenerator::State is moved to Deoptimize::BailoutState.
R=rmcilroy@chromium.org, joransiu@ca.ibm.com, michael_dawson@ca.ibm.com, mbrandy@us.ibm.com
BUG=v8:4280
LOG=N
Review-Url: https://codereview.chromium.org/1989983002
Cr-Commit-Position: refs/heads/master@{#36336}
Properly records entries individually instead of using the hammer that requires
visiting the whole code object during pointer updating.
BUG=chromium:612847
LOG=N
Review-Url: https://codereview.chromium.org/1994653002
Cr-Commit-Position: refs/heads/master@{#36334}
Remove kMakeHeapIterableMask since the heap is always iterable.
BUG=chromium:580959
LOG=n
Review-Url: https://codereview.chromium.org/1961373003
Cr-Commit-Position: refs/heads/master@{#36333}
This patch ensures that Intl bound method getters can't be retargeted
to other Intl types. If that were to happen, then a RUNTIME_ASSERT
would trigger later. This patch throws a TypeError instead, as the
specification requires.
BUG=v8:4870
Review-Url: https://codereview.chromium.org/1986763003
Cr-Commit-Position: refs/heads/master@{#36330}
This is a pure refactoring that removes unnecessary wrapper methods from
the EscapeAnalysis class. This completely removes the notion of "Alias"
from the interface.
R=jarin@chromium.org
Review-Url: https://codereview.chromium.org/1989243002
Cr-Commit-Position: refs/heads/master@{#36325}
This promotes the escape analysis from an experimental feature to be a
fully supported feature. The main goal is to unleach ClusterFuzz on the
implementation so that we can stabilize it.
R=jarin@chromium.org
Review-Url: https://codereview.chromium.org/1989833002
Cr-Commit-Position: refs/heads/master@{#36324}
This is pure refactoring that moves many internal details of the escape
analysis from the header into the compilation unit. The goal of this is
to simplify the interface for readability.
R=jarin@chromium.org
Review-Url: https://codereview.chromium.org/1991723003
Cr-Commit-Position: refs/heads/master@{#36322}
Currently attached references are only used for global proxy, source
string and code stubs. Mid-term future we want to use attached
references for arbitrary objects (in fixed order) provided from outside.
This change renames BackReference to SerializerReference to include both
back references and attached references.
R=mtrofin@chromium.org, vogelheim@chromium.org
Review-Url: https://codereview.chromium.org/1992723002
Cr-Commit-Position: refs/heads/master@{#36318}
We have evidence (see r34896) that this avoids crashes.
BUG=chromium:524337
Review-Url: https://codereview.chromium.org/1995483002
Cr-Commit-Position: refs/heads/master@{#36317}
When setting a generator function's "prototype" property to a non-object, the
prototype of new generator instances should be %GeneratorPrototype%, not
%ObjectPrototype%.
R=verwaest@chromium.org
BUG=v8:5011
Review-Url: https://codereview.chromium.org/1982203003
Cr-Commit-Position: refs/heads/master@{#36313}
