- Thread Type::FunctionType through stubs and the TF pipeline.
- Augment Typer to decorate parameter nodes with types from
a Type::FunctionType associated with interface descriptors.
- Factor interface descriptors into platform-specific and
platform-independent components so that all descriptors share
a common Type::FunctionType for all platforms.
Review URL: https://codereview.chromium.org/1197703002
Cr-Commit-Position: refs/heads/master@{#29248}
Speculative revert in the hopes of fixing serializer crashes seen in canary.
This reverts commit c166945083, as well as
followup change "Do not look for existing shared function info when compiling a new script."
(commit 7c43967bb7).
BUG=chromium:503552,v8:4132
TBR=yangguo@chromium.org
LOG=n
Review URL: https://codereview.chromium.org/1207583002
Cr-Commit-Position: refs/heads/master@{#29241}
Each Script object now keeps a WeakFixedArray of SharedFunctionInfo
objects created from this script.
This way, when compiling a function, we do not create duplicate shared
function info objects when recompiling with either compiler.
This fixes a class of issues in the debugger, where we set break points
on one shared function info, but functions from duplicate shared function
infos are not affected.
LOG=N
BUG=v8:4132
Review URL: https://codereview.chromium.org/1183733006
Cr-Commit-Position: refs/heads/master@{#29151}
Reason for revert:
Breaks Windows debug.
Original issue's description:
> [turbofan] Record the SharedFunctionInfo of ALL inlined functions.
>
> Previously we only recorded the SharedFunctionInfo of inlined functions
> that had at least one (lazy) deopt point left at code generation time.
>
> R=mstarzinger@chromium.org
>
> Committed: ffa0b4007cTBR=mstarzinger@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
Review URL: https://codereview.chromium.org/1178683004
Cr-Commit-Position: refs/heads/master@{#28920}
Previously we only recorded the SharedFunctionInfo of inlined functions
that had at least one (lazy) deopt point left at code generation time.
R=mstarzinger@chromium.org
Review URL: https://codereview.chromium.org/1175953002.
Cr-Commit-Position: refs/heads/master@{#28919}
When the page is controlled by a ServiceWorker, the ServiceWorker can return an opaque (non-CORS cross origin) resource response.
We need to treat the messages from such script resource as opaque.
Committed: https://crrev.com/7a599c5e1242d3c5ab7515ee149623da90ae69ec
Cr-Commit-Position: refs/heads/master@{#28445}
Review URL: https://codereview.chromium.org/1140673002
Cr-Commit-Position: refs/heads/master@{#28459}
When the page is controlled by a ServiceWorker, the ServiceWorker can return an opaque (non-CORS cross origin) resource response.
We need to treat the messages from such script resource as opaque.
Review URL: https://codereview.chromium.org/1140673002
Cr-Commit-Position: refs/heads/master@{#28445}
This stub will be used as the basis of a Math.floor-specific CallIC to
detect and track calls to floor that return -0.
Along the way:
- Create a TurboFanCodeStub super class from which the StringLength and
MathRound TF stubs derive.
- Fix the ugly hack that passes the first stub parameter as the "this"
pointer in the the TF-compiled JS function.
- Fix bugs in the ia32/x64 disassembler.
Review URL: https://codereview.chromium.org/1137703002
Cr-Commit-Position: refs/heads/master@{#28339}
Now all nodes that care about deoptimization always take frame state
inputs no matter whether deoptimization is enabled for a particular
function. In case that deoptimization is off, the AstGraphBuilder just
inserts the empty frame state. This greatly simplifies the logic in
various places and makes testing easier as well, and is probably the
first step towards enabling --turbo-deoptimization by default.
There seems to be no noticable performance impact on asm.js programs.
Also fix the graph replay in order to regenerate the scheduler unittests.
Review URL: https://codereview.chromium.org/1106613003
Cr-Commit-Position: refs/heads/master@{#28026}
This removes the CompilationInfoWithZone class from the header file
because it is more than a pure convenience class and shouldn't be used
outside of the compiler at all.
R=titzer@chromium.org
Review URL: https://codereview.chromium.org/1000353004
Cr-Commit-Position: refs/heads/master@{#27411}
it is the last patch of https://codereview.chromium.org/1012633002
All that we need here is to push the collected info to the profiler
and convert it into actionable information about deopt.
On the Next: get the info accessible by embedder.
BUG=chromium:452067
LOG=n
TEST=DeoptAtFirstLevelInlinedSource, DeoptAtSecondLevelInlinedSource, DeoptUntrackedFunction
Review URL: https://codereview.chromium.org/1013143003
Cr-Commit-Position: refs/heads/master@{#27403}
This removes the stub-based constructor from CompilationInfoWithZone
as this class is more than a pure convenience class and only by chance
doesn't have an effect in the destructor.
R=titzer@chromium.org
Review URL: https://codereview.chromium.org/1026513004
Cr-Commit-Position: refs/heads/master@{#27376}
Use a delegating constructor for CompilationInfo, reducing duplicated
code. Simplified handling of InlinedFunctionInfos on the way: When we
start compiling, we have bigger things to worry about than a default
vector.
Reduced the usage of a SharedFunctionInfo for compiling, this is a
slighty strange concept.
Review URL: https://codereview.chromium.org/1018853004
Cr-Commit-Position: refs/heads/master@{#27299}
This is the fifth part of https://codereview.chromium.org/1012633002
In this part we collect the offsets of deopt calls and save it into
an inlined function info.
On the Next:
Later when deopt happens we will get the offset of deopt call and
search it among inlined infos.
BUG=chromium:452067
LOG=n
Review URL: https://codereview.chromium.org/1011113004
Cr-Commit-Position: refs/heads/master@{#27258}
this is the second part of https://codereview.chromium.org/1012633002.
almost mechanical change.
I'd like to enable positions tracking when cpu profiler is working.
But I'll switch it on for cpu-profiler in another patch.
BUG=chromium:452067
LOG=n
Review URL: https://codereview.chromium.org/995183005
Cr-Commit-Position: refs/heads/master@{#27224}
I did some investigation and found that in the most cases
the old schema with the separate List for functions and inlines
gives us no memory benefits because more frequently we inlines
different functions into parent function. So the plain schema
wins a tens or even hundreds bytes a few thousand times.
The only drawback is that we will print the inlined body
the each time when we inline it. But is not a problem
because it happens only under FLAG_hydrogen_track_positions.
Also I added script_id to the structure, so it could be used later
by cpu-profiler.
BUG=chromium:452067
LOG=n
Review URL: https://codereview.chromium.org/996153003
Cr-Commit-Position: refs/heads/master@{#27134}
Rationale: separate the inputs and outputs of parsing + analysis from the business of compiling (i.e. generating machine code).
BUG=
Review URL: https://codereview.chromium.org/974213002
Cr-Commit-Position: refs/heads/master@{#27078}
We mark certain builtins for inlining, and those should always be
inlined into optimized code (CrankShaft already handles it this way), so
we should support that in TurboFan as well. Currently this mainly
affects a certain set of Math functions, but once have the basics in
place we can extend this to any kind of builtin/code stub/accessor.
This adds a new flag --turbo_builtin_inlining (enabled by default), that
forces the inliner to always inline builtins marked for inlining, but
does not affect inlining of other functions (this is still controlled by
the --turbo-inlining flag).
BUG=v8:3952
LOG=n
R=jarin@chromium.org
Review URL: https://codereview.chromium.org/993473002
Cr-Commit-Position: refs/heads/master@{#27059}
According to Source Map specification [1] source map url can be passed either as a magic comment at the end of script or as SourceMap http header. We already parse the former value and expose it on Script object. This change allows to unify the way we deal with source map urls received in http header by providing api for passing that url into the script being compiled.
source_map_url is intentionally not passed into CompilationCacheScript::Lookup. The cache is anyways disabled when debugger is on.
[1] https://docs.google.com/document/d/1U1RGAehQwRypUTovF1KRlpiOFze0b-_2gc6fAH0KY0k/edit
LOG=Y
BUG=chromium:462572
Review URL: https://codereview.chromium.org/983603003
Cr-Commit-Position: refs/heads/master@{#27017}
Save Unknown position as zero in RelocInfo.
Remove copy constructor of SourcePosition because it is trivial.
Mechanical replace int raw_position with SourcePosition position.
BUG=452067
LOG=n
Review URL: https://codereview.chromium.org/959203002
Cr-Commit-Position: refs/heads/master@{#26916}
A function could be deoptimized due to a deopt in the inlined code.
The inlined function might be defined in another script. So we need to
track the information about the inlined functions (scriptId and offset).
We already have the tracking code which is behind FLAG_hydrogen_track_position.
So as the first step we need to make the info accessible by CPU profiler.
In the follow-up patches I'll add the code which will enable position
tracking and push the info into CodeEntry entries.
BUG=452067
LOG=n
Review URL: https://codereview.chromium.org/914413007
Cr-Commit-Position: refs/heads/master@{#26680}
Use a fake code stub instead, basically following the null object pattern.
Review URL: https://codereview.chromium.org/918973002
Cr-Commit-Position: refs/heads/master@{#26610}
Several tiny changes for the upcoming TurboFan-genrated handlers/stubs:
* Relaxed the type of code_stub().
* Made GetCodeKind() public, it effectly was like this, anyway.
* Const-corrected GetStubType().
Review URL: https://codereview.chromium.org/915583002
Cr-Commit-Position: refs/heads/master@{#26542}
This adds an "experimental" API hook (v8::ScriptCompiler::CompileModule)
allowing compilation of modules. The code gen is incredibly basic: the
module body is represented by a Block in the AST. But this at least gets
more of the pipeline working, and opens the door to writing mjsunit tests
(once d8 is modified to support module compilation).
BUG=v8:1569
LOG=n
Review URL: https://codereview.chromium.org/902093002
Cr-Commit-Position: refs/heads/master@{#26496}
