As I can see in the code:
src/builtins.h:438:
// ES6 section 9.2.1 [[Call]] ( thisArgument, argumentsList)
static void Generate_CallFunction(MacroAssembler* masm,
ConvertReceiverMode mode,
TailCallMode tail_call_mode);
I've
objects-call-thisargument-argumentslist
>
>
> On Tue, Jun 14, 2016 at 12:10 PM, Dmitriy - > wrote:
> > As I can see in the code:
> > src/builtins.h:438:
> > // ES6 section 9.2.1 [[Call]] ( thisArgument, argumentsList)
>
Hello all.
I want to build js frame for function and I want to know - What does it
contain?
I mean not platform specific part but js specific things.
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Hello,
I try to understand what happens in this code:
When you call something you are writing:
__ Call(builtin, RelocInfo::CODE_TARGET);
What how it looks:
void MacroAssembler::Call(Handle code_object,
RelocInfo::Mode rmode,
TypeFeedbackId ast_
Hello all.
I can't understand how the next construction works.
We have two builtins - JSEntryTrampoline and Call
They are called sequentially.
First we build frame in JSEntryTrampoline:
// Current stack contents:
// [rsp + 2 * kPointerSize ... ] : Internal frame
// [rsp + kPointerSize]
Hi,
in x64 implementation I can see that code
const Register kRootRegister = { 13 }; // r13 (callee save).
// Actual value of root register is offset from the root array's start
// to take advantage of negitive 8-bit displacement values.
What does it mean?
It used here:
Label convert_gl
Thx Ben. Your help is great.
On Tuesday, August 9, 2016 at 7:04:19 PM UTC+7, Ben Noordhuis wrote:
>
> On Tue, Aug 9, 2016 at 12:54 PM, Dmitriy - > wrote:
> > Hi,
> >
> > in x64 implementation I can see that code
> >
> > const Register kRootRegiste
I've not found any doc about reloc's mode.
For example what does EMBEDDED_OBJECT mean? For what does purposes it use?.
I'm see what happens with this reloc mode, but high level description would
be good.
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Hello, I run
./d8 with --print_ast key
and when type something (for example "1" or "print(1 + 2)")
First of all d8 print this ast:
[generating full code for user-defined function: ]
--- AST ---
FUNC at 0
. NAME ""
. INFERRED NAME ""
. EXPRESSION STATEMENT at 0
. . ASSIGN at -1
. . . VAR PROXY loca
Simple example is :
d8> print(1)
[generating full code for user-defined function: ]
--- AST ---
FUNC at 0
. NAME ""
. INFERRED NAME ""
. EXPRESSION STATEMENT at 0
. . ASSIGN at -1
. . . VAR PROXY local[0] (mode = TEMPORARY) ".result"
. . . CALL Slot(0)
. . . . VAR PROXY Slot(2) (mode = DYNAMIC_GLO
For example:
d8> print(1)
Fullcodegen call EmitCallWithLoadIC.
print is a global function. Why v8 emit IC for this case? And how IC works
in this case?
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Hello all,
I see at FullCodegen and VariableProxy class.
What does it mean?
It calls EmitVariableLoad in FC but I can't understand for what purposes it
has made.
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I can see a lot of frame's descriptions in v8's source:
frame.h
frames.h
and platfom-dependent frames-x64 and others.
I'm implementing full-codegen for my platform and I'm little bit confused
about frames for functions.
What must I save in frame for function in fullcodegen?
I think there are:
Hi,
The v8 frame for callee (all for x64 platform) for full-codegen is:
--
return_addr
saved frame ptr
context
JsFunction
--
You can see description in frames.h file - "StandardFrames are used for
interpreted, full-codegen and optimized..."
I try to implement ICs for my
For example:
c frame
js frame
c frame
js frame
js frame
c frame
OR
c frame
c frame
c frame
c frame
--
js frame
js frame
js frame
Does V8 separate stack on two parts - JS stack and Native stack?
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Thx, I'm very glad to hear it.
On Thursday, September 29, 2016 at 5:11:50 PM UTC+7, Jochen Eisinger wrote:
>
> We use the same stack
>
> Best
> Jochen
>
> Dmitriy - > schrieb am Do., 29. Sep.
> 2016, 12:01:
>
>> For example:
>>
>> c frame
>
I got an error -
"#4 0x47296910 in v8::internal::StackFrameIterator::Advance() ()
from /home/dbezheckov/lib.target/libv8.so
#5 0x4753d758 in
v8::internal::IC::IC(v8::internal::IC::FrameDepth, v8::internal::Isolate*,
v8::internal::FeedbackNexus*) ()
from /home/dbezheckov/lib
Hi, I can't understand what is it?
// Invoke: Link this frame into the handler chain.
__ bind(&invoke);
__ PushStackHandler();
void MacroAssembler::PushStackHandler() {
// Adjust this code if not the case.
STATIC_ASSERT(StackHandlerConstants::kSize == 1 * kPointerSize);
STATIC_ASSER
For example d8 has "print" function.
I know that all bootstrapping business is in bootstrapper.cc
Where v8 adds "print" function to global script context so that it can call
it?
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In ic.cc:
// The IC code is either invoked with no extra frames on the stack
// or with a single extra frame for supporting calls.
enum FrameDepth { NO_EXTRA_FRAME = 0, EXTRA_CALL_FRAME = 1 };
And CallIC:
class CallIC : public IC {
public:
CallIC(Isolate* isolate, CallICNexus* nexus)
:
Hi,
I try to run "print(1)" on d8 and I get following calls:
(in runtime)
... -> LoadICStub -> CallICStub -> Builtin::Generate_Call -> ... ->
Builtins::Generate_Adaptor
I don't understand who and why calls Generate_Adaptor.
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CallICStub belongs this "print(1)" because when we emit call in FullCodegen
we call:
VisitCall -> EmitCallWithLoadIC -> CallLoadIC -> Call CallIC
On Wednesday, October 12, 2016 at 6:53:20 PM UTC+7, Ben Noordhuis wrote:
>
> On Wed, Oct 12, 2016 at 1:25 PM, Dmitriy - >
Hi, I wonder that full-codegen uses hydrogens stubs:
For example when I'm running
var a = 10;
a + 10;
full-codegen calls FullCodeGenerator::EmitBinaryOp for "a + 10" and creates
Handle code = CodeFactory::BinaryOpIC(isolate(), op).code();
And
class BinaryOpICStub : public HydrogenCodeStub {
As
Anybody?
On Thursday, October 13, 2016 at 4:22:42 PM UTC+7, Dmitriy - wrote:
>
> Hi, I wonder that full-codegen uses hydrogens stubs:
>
> For example when I'm running
> var a = 10;
> a + 10;
>
> full-codegen calls FullCodeGenerator::EmitBinaryOp for "
Hello,
I'm looking for test for my port v8.
The port doesn't support many features from v8, but it can run cycles, if
statements, variable assignment, arithmetics etc.
Do you know any test suit that test some trivial part of machine like a
arrays, cycles etc?
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Hi guys,
I'm still porting v8 to my architecture)
I work with 5.1 version so I don't use Ignition, only FCG, Crankshaft and
Turbofan.
I do a lot of work and a big part of FCG is working.
Can you point me what should I do for gc support?
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http
Hi, I've met this code in V8:
void FullCodeGenerator::EmitCreateIterResultObject(CallRuntime* expr) {
ZoneList* args = expr->arguments();
DCHECK_EQ(2, args->length());
VisitForStackValue(args->at(0));
VisitForStackValue(args->at(1));
Label runtime, done;
__ Allocate(JSIteratorResult:
What is the difference between JSConstructEntryStub and JSEntryStub?
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Hi all,
Today we have the Ignition interpreter and bytecode for JS.
I think that we can reduce size of JavaScript code via using some compiler
like javac in the Java language.
In such case we didn't need to parse raw JS source.
WDYT about it?
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Yeah, thx Yang, code cache is like what I want.
But are there some instruments in browser and compilers for producing
Ingition bytecodes? (I don't want to use code caching)
This is some example of pipeline:
write script.js
compile script.js into Ignition bytecode -> script-bytecode.bjs
in HTML
Hi all,
Is there any option in V8 to use stop-the-world gc?
I mean gc which doesn't use write barriers for implementation.
I'm porting V8 and the barriers hasn't implemented yet and I wanted to try
run V8 without gc which uses these barriers.
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Hello all.
I'm testing V8 version 5.1 on test262.
It passes all the tests, but when I run one test independently it fail.
This work only for tail-call-optimization test. For example:
$ tools/run-tests.py --random-seed=0 --no-presubmit --no-stress --no-network
--arch-and-mode=x64.release --rerun-
Thx Jakob, this works.
On Monday, May 15, 2017 at 5:00:05 PM UTC+7, Jakob Kummerow wrote:
>
> You need --harmony-tailcalls instead of --harmony (at least on current
> versions; 5.1 is very old).
>
> On Mon, May 15, 2017 at 11:45 AM, Dmitriy - > wrote:
>
>> Hell
Just in case, clang can detect global constructors, so if you build code
base with CXX="clang++ -Wglobal-constructors", it should warn you about all
such cases. For some of our projects we added -Wglobal-constructors into
Makefiles, so that no new instances are added.
On Mon, Mar 12, 2012 at 3:5
lue at any point later (main, thread creation, etc).
On Tue, Mar 13, 2012 at 11:31 AM, Dmitriy Vyukov wrote:
>
>> Just in case, clang can detect global constructors, so if you build code
>> base with CXX="clang++ -Wglobal-constructors", it should warn you about all
>
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