port 95a9b76115 (r42344)
original commit message:
Recognize and emit in-memory comparisons of 8-bit and 16-bit values with
immediate values that fit.
BUG=
Review-Url: https://codereview.chromium.org/2651553002
Cr-Commit-Position: refs/heads/master@{#42585}
Property backing store size for object literals is
the number of constant and named properties (possibly
over-allocating for the same names).
We do not reserve space in the backing store for __proto__.
We do not reserve space in the backing store for index keys.
Currently, we account for index keys in the runtime when iterating
over the boilerplate properties. Since the boilerplate properties
only include the properties up to the first computed property
name, the property backing store size includes space for index keys
if seen after the first computed property.
R=verwaest@chromium.org
BUG=v8:5625
Review-Url: https://codereview.chromium.org/2650593002
Cr-Commit-Position: refs/heads/master@{#42584}
Reason for revert:
Blocks roll https://codereview.chromium.org/2647183002/
Original issue's description:
> [build] Introduce an embedder version string
>
> Sometimes, the embedder might want to merge a fix to an abandoned branch
> or to a supported branch but the fix is not relevant to Chromium.
> This adds a new version string that the embedder can set on compile time
> and that will be appended to the official V8 version.
> The separator must be provided in the string. For instance, to have a
> full version string like "5.5.372.37.custom.1", the embedder must set
> V8_EMBEDDER_STRING to ".custom.1".
>
> Related Node.js issue: https://github.com/nodejs/node/pull/9754
>
> BUG=v8:5740
> R=machenbach@chromium.org,hablich@chromium.com,ofrobots@google.com
>
> CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:linux_chromium_rel_ng
>
> Review-Url: https://codereview.chromium.org/2619213002
> Cr-Original-Commit-Position: refs/heads/master@{#42175}
> Committed: fc86d4329b
> Review-Url: https://codereview.chromium.org/2619213002
> Cr-Commit-Position: refs/heads/master@{#42582}
> Committed: 2c1d1e6088TBR=hablich@chromium.com,machenbach@chromium.org,ofrobots@google.com,mic.besace@gmail.com
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:5740
Review-Url: https://codereview.chromium.org/2643393004
Cr-Commit-Position: refs/heads/master@{#42583}
Sometimes, the embedder might want to merge a fix to an abandoned branch
or to a supported branch but the fix is not relevant to Chromium.
This adds a new version string that the embedder can set on compile time
and that will be appended to the official V8 version.
The separator must be provided in the string. For instance, to have a
full version string like "5.5.372.37.custom.1", the embedder must set
V8_EMBEDDER_STRING to ".custom.1".
Related Node.js issue: https://github.com/nodejs/node/pull/9754
BUG=v8:5740
R=machenbach@chromium.org,hablich@chromium.com,ofrobots@google.com
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:linux_chromium_rel_ng
Review-Url: https://codereview.chromium.org/2619213002
Cr-Original-Commit-Position: refs/heads/master@{#42175}
Committed: fc86d4329b
Review-Url: https://codereview.chromium.org/2619213002
Cr-Commit-Position: refs/heads/master@{#42582}
Convert strings to numbers if possible in the runtime call and store
in excluded property list.
BUG=v8:5549
Review-Url: https://codereview.chromium.org/2639333004
Cr-Commit-Position: refs/heads/master@{#42581}
This enables us to produce the list of eager inner functions for compilation
in one go during the outer function's renumbering step, and avoid having
to do renumbering explicitly on the inner functions, simplifying the zone
ownership.
BUG=v8:5203, v8:5215
Review-Url: https://codereview.chromium.org/2648503002
Cr-Original-Commit-Position: refs/heads/master@{#42540}
Committed: 3541a074e2
Review-Url: https://codereview.chromium.org/2648503002
Cr-Commit-Position: refs/heads/master@{#42580}
This moves AsyncFunctionAwait{Caught,Uncaught} to CSA, and removes
async-await.js.
BUG=v8:5639
Review-Url: https://codereview.chromium.org/2643023002
Cr-Commit-Position: refs/heads/master@{#42579}
Reason for revert:
Breaks arm64.
Original issue's description:
> [regexp] Store named captures on the regexp result
>
> This implements storing named captures on the regexp result object.
> For instance, /(?<a>.)/u.exec("b") will return a result such that:
>
> result.group.a // "b"
>
> The spec proposal is not yet final, so this may still change in the future.
>
> BUG=v8:5437
>
> Review-Url: https://codereview.chromium.org/2630233003
> Cr-Original-Commit-Position: refs/heads/master@{#42532}
> Committed: 70000946eb
> Review-Url: https://codereview.chromium.org/2630233003
> Cr-Commit-Position: refs/heads/master@{#42570}
> Committed: ee94fa11edTBR=yangguo@chromium.org,littledan@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:5437
Review-Url: https://codereview.chromium.org/2639403008
Cr-Commit-Position: refs/heads/master@{#42577}
Allocate space in the backing store for computed property names.
The property backing store was pre-allocated for the constant
properties up to the first non-constant (computed name) property.
To use lowering for storing data properties in literals
with computed property names effectively, a fast store is needed, i.e.,
available space in the property backing store for properties
with computed names.
backing_store_size is the number of all properties (including
computed names, but without __proto__)
that is calculated in the ast and passed to the runtime function that allocates
the property backing store. backing_store_size and
constant_properties constitute a BoilerplateDescription.
backing_store_size might be slightly too high because computed names
can evaluate to the same name, but that should be a rare
case so over-allocating is OK.
If a property is __proto__, we don't store it as a regular
property, because the map changes. Keep track of
has_seen_proto in the parser to calculate the
backing store size correctly.
BUG=v8:5625
Review-Url: https://codereview.chromium.org/2632503003
Cr-Commit-Position: refs/heads/master@{#42576}
The flag in question was on by defautl for a while now and has never
been supported for optimized code generated from bytecode. We no longer
support eliding stack-checks within loops just in optimized code.
R=bmeurer@chromium.org
BUG=v8:5653
Review-Url: https://codereview.chromium.org/2643773008
Cr-Commit-Position: refs/heads/master@{#42574}
This implements storing named captures on the regexp result object.
For instance, /(?<a>.)/u.exec("b") will return a result such that:
result.group.a // "b"
The spec proposal is not yet final, so this may still change in the future.
BUG=v8:5437
Review-Url: https://codereview.chromium.org/2630233003
Cr-Original-Commit-Position: refs/heads/master@{#42532}
Committed: 70000946eb
Review-Url: https://codereview.chromium.org/2630233003
Cr-Commit-Position: refs/heads/master@{#42570}
Create different json files for diffferent optimization attempts of the same function.
This allows to analyze the graphs of early optimization attempts that lead to deopts or to produce a proper json file in the case of a deopt loop.
R=danno@chromium.org
Review-Url: https://codereview.chromium.org/2649513003
Cr-Commit-Position: refs/heads/master@{#42567}
In this particular case, we just did a (lhs)op(rhs), ignoring the case
that lhs and rhs might have different signedness.
This CL changes that to use the proper Cmp##op##Impl implementation,
which does two comparisions for signed-vs-unsigned checks, avoiding
compiler errors.
R=ishell@chromium.org
Review-Url: https://codereview.chromium.org/2642383002
Cr-Commit-Position: refs/heads/master@{#42566}
E.g., ast/ast.h uses Label but shouldn't need to include assembler.h for that. With
this change, we can hope for proper layering in the future (not quite there
yet).
Also includes minor random include lowering and relevant IWYU fixes.
BUG=v8:5294
Review-Url: https://codereview.chromium.org/2645063002
Cr-Commit-Position: refs/heads/master@{#42563}
Moves ownership of the parsing Zone to ParseInfo with a shared_ptr. This is
in preperation for enabling background compilation jobs for inner functions
share the AST in the outer-function's parse zone memory (read-only), with the
and zone being released when all compilation jobs have completed.
BUG=v8:5203,v8:5215
Review-Url: https://codereview.chromium.org/2632123006
Cr-Original-Commit-Position: refs/heads/master@{#42539}
Committed: 839b06b64f
Review-Url: https://codereview.chromium.org/2632123006
Cr-Commit-Position: refs/heads/master@{#42562}
FAST_DOUBLE_ELEMENTS and FAST_HOLEY_DOUBLE_ELEMENTS kinds should both
be handled by the runtime.
Review-Url: https://codereview.chromium.org/2644643011
Cr-Commit-Position: refs/heads/master@{#42561}
Test that setting breakpoints works for wasm, and that they are hit
correctly.
This basically tests all the layers involved: Compiling and running
wasm interpreter entries, passing arguments to the interpreter, storing
break point infos in wasm objects, getting the right BreakLocation from
wasm frames, and getting stack information from interpreted frames.
BUG=v8:5822
R=titzer@chromium.org, yangguo@chromium.org
Review-Url: https://codereview.chromium.org/2629883002
Cr-Commit-Position: refs/heads/master@{#42560}
The index input of load and store nodes has to be of type int32. However
it is still possible that this index input was lowered by the
Int64Lowering, for example if the index was a kTruncateInt64ToInt32
node. With this CL we check if there exists a replacement of the index
and if so, use the replacement instead of the original index as the
input for the lowered load and store nodes.
BUG=v8:5874
R=titzer@chromium.org, eholk@chromium.org
Review-Url: https://codereview.chromium.org/2644603004
Cr-Commit-Position: refs/heads/master@{#42559}
This particular test case is a hack that abuses Turbofan to
generate code that contains a switch table. Now that some
builtins use the CodeStubAssembler to implement switch tables
we don't need this test case anymore.
TBR=jarin@chromium.org
Review-Url: https://codereview.chromium.org/2645943003
Cr-Commit-Position: refs/heads/master@{#42553}
Frame inspection is currently limited to locations of execution.
Further details like local variables or stack content will follow later.
The FrameInspector now stores a pointer to the interpreted wasm frame,
and redirects certain requests there, just as for deoptimized frames.
Hitting breakpoints is now also supported for wasm frames.
R=yangguo@chromium.org, titzer@chromium.org
BUG=v8:5822
Review-Url: https://codereview.chromium.org/2629823003
Cr-Commit-Position: refs/heads/master@{#42551}
This patch adds destructor to ValueSerializerTest test fixture class
which reset unhandled scheduled exceptions thrown from the current test.
In some cases unhandled scheduled exceptions from current test (eg.
from one test from ValueSerializerTestWithWasm test case) produce that
Context::New(isolate()) from next test's constructor returns NULL.
This error is easily reproduced when unittest file (compiled for ARM or
MIPS simulator) is directly executed (not by tools/run_tests.py script),
so all tests are executed together. When the script is used, each test
from ValueSerializerTestWithWasm test case is separately executed and
unhandled exception from one test doesn't efect to another test from
the same test case.
BUG=
Review-Url: https://codereview.chromium.org/2644083002
Cr-Commit-Position: refs/heads/master@{#42547}
Reason for revert:
Flag is being removed for 5.8.
Original issue's description:
> [debugger] temporarily re-implement --expose-debug-as.
>
> This is done out of courtesy for Node.js and will be
> removed as soon as we branch for version 5.8.
>
> R=jgruber@chromium.org
>
> Review-Url: https://codereview.chromium.org/2636423002
> Cr-Commit-Position: refs/heads/master@{#42437}
> Committed: cbb7145221TBR=jgruber@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
Review-Url: https://codereview.chromium.org/2641283002
Cr-Commit-Position: refs/heads/master@{#42546}
The %_ValueOf intrinsic is not used anymore and the runtime call
%ValueOf will also disappear once all the self hosted builtins are
migrated.
R=rmcilroy@chromium.org
Review-Url: https://codereview.chromium.org/2642303003
Cr-Commit-Position: refs/heads/master@{#42544}
Reason for revert:
Crashes on Windows in:
CompilerDispatcherJobTest.CompileFailureToFinalize
CompilerDispatcherJobTest.ScopeChain
Original issue's description:
> [Parse] ParseInfo owns the parsing Zone.
>
> Moves ownership of the parsing Zone to ParseInfo with a shared_ptr. This is
> in preperation for enabling background compilation jobs for inner functions
> share the AST in the outer-function's parse zone memory (read-only), with the
> and zone being released when all compilation jobs have completed.
>
> BUG=v8:5203,v8:5215
>
> Review-Url: https://codereview.chromium.org/2632123006
> Cr-Commit-Position: refs/heads/master@{#42539}
> Committed: 839b06b64fTBR=marja@chromium.org,mstarzinger@chromium.org,ahaas@chromium.org,verwaest@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:5203,v8:5215
Review-Url: https://codereview.chromium.org/2645613008
Cr-Commit-Position: refs/heads/master@{#42542}
Reason for revert:
Revert in order to revert dependent patchset https://codereview.chromium.org/2632123006/
Original issue's description:
> [Compiler] Have renumber recurse into eagerly compiled function literals.
>
> This enables us to produce the list of eager inner functions for compilation
> in one go during the outer function's renumbering step, and avoid having
> to do renumbering explicitly on the inner functions, simplifying the zone
> ownership.
>
> BUG=v8:5203, v8:5215
>
> Review-Url: https://codereview.chromium.org/2648503002
> Cr-Commit-Position: refs/heads/master@{#42540}
> Committed: 3541a074e2TBR=mstarzinger@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:5203, v8:5215
Review-Url: https://codereview.chromium.org/2643233002
Cr-Commit-Position: refs/heads/master@{#42541}
This enables us to produce the list of eager inner functions for compilation
in one go during the outer function's renumbering step, and avoid having
to do renumbering explicitly on the inner functions, simplifying the zone
ownership.
BUG=v8:5203, v8:5215
Review-Url: https://codereview.chromium.org/2648503002
Cr-Commit-Position: refs/heads/master@{#42540}
Moves ownership of the parsing Zone to ParseInfo with a shared_ptr. This is
in preperation for enabling background compilation jobs for inner functions
share the AST in the outer-function's parse zone memory (read-only), with the
and zone being released when all compilation jobs have completed.
BUG=v8:5203,v8:5215
Review-Url: https://codereview.chromium.org/2632123006
Cr-Commit-Position: refs/heads/master@{#42539}
Rationale:
- To do scope analysis based on PreParser, and use the result again when parsing
later, PreParser and Parser need to produce the same Scopes and variable
declarations in them.
- This is not the case for non-simple parameters: Parser creates an additional
inner Scope where the declarations were, whereas PreParser does
DeclareVariableName directly in the function Scope.
- So this CL fixes that by moving the Scope creation for non-simple parameters
into ParserBase.
- As a side product (and a partial proof that this change makes sense),
PreParser::ParseEagerFunctionBody is now gone.
BUG=v8:5516
Review-Url: https://codereview.chromium.org/2638333002
Cr-Commit-Position: refs/heads/master@{#42537}
