Andreas Kling
3fc0333ee6
LibJS: Put Bytecode::CallFrame + register slots in a single allocation
...
The number of registers in a call frame never changes, so we can
allocate it at the end of the CallFrame object and save ourselves the
cost of allocating separate Vector storage for every call frame.
2023-11-29 09:48:18 +01:00
Andreas Kling
3dc5f467a8
LibJS: Always allocate ExecutionContext objects on the malloc heap
...
Instead of allocating these in a mixture of ways, we now always put
them on the malloc heap, and keep an intrusive linked list of them
that we can iterate for GC marking purposes.
2023-11-29 09:48:18 +01:00
Andreas Kling
ecfcc9aef3
LibJS: Make Bytecode::Executable GC-allocated
...
This is a step towards making ExecutionContext easier to allocate.
2023-11-29 09:48:18 +01:00
Stephan Vedder
84eecbb10e
LibJS/JIT: Add fastpath for set variable
2023-11-19 22:36:07 +01:00
Idan Horowitz
f19349e1b6
LibJS: Instantiate primitive array expressions using a single operation
...
This will not meaningfully affect short array literals, but it does
give us a bit of extra perf when evaluating huge array expressions like
in Kraken/imaging-darkroom.js
2023-11-18 08:37:34 +01:00
Simon Wanner
86b85aa68b
LibJS: Introduce Builtins
...
Builtins are functions that can be detected during bytecode generation
and enable fast-paths in the JIT.
2023-11-17 19:06:25 +01:00
Andreas Kling
cb7169d73f
LibJS/JIT: Support the EnterObjectEnvironment bytecode instruction
...
We can now use `with` statements in jitted code. :^)
2023-11-12 14:21:41 +01:00
Andreas Kling
cfdb8a2756
LibJS/JIT: Update "unwind context" stack in JIT code
...
Until now, the unwind context stack has not been maintained by jitted
code, which meant we were unable to support the `with` statement.
This is a first step towards supporting that by making jitted code
call out to C++ to update the unwind context stack when entering/leaving
unwind contexts.
We also introduce a new "Catch" bytecode instruction that moves the
current exception into the accumulator. It's always emitted at the start
of a "catch" block.
2023-11-12 14:21:41 +01:00
Andreas Kling
298dfa96a4
LibJS: Remove unused members from EnterUnwindContext instruction
2023-11-12 14:21:41 +01:00
Andreas Kling
b6435ca280
LibJS: Unify bytecode instruction names with their helper names
2023-11-12 14:21:41 +01:00
Andreas Kling
2520c46224
LibJS/JIT: Resolve the GetCalleeAndThisFromEnvironment cache at JIT time
2023-11-10 14:49:25 +01:00
Andreas Kling
b1b2ca1485
LibJS: Add basic monomorphic caching for PutById property access
...
This patch makes it possible for JS::Object::internal_set() to populate
a CacheablePropertyMetadata, and uses this to implement a basic
monomorphic cache for the most common form of property write access.
2023-11-09 16:02:14 +01:00
Andreas Kling
536b9c29e4
LibJS/JIT: Resolve the EnvironmentVariableCache pointers at JIT time
2023-11-06 13:06:10 +01:00
Andreas Kling
a616a682fe
LibJS/JIT: Resolve the GlobalVariableCache pointers at JIT time
2023-11-06 13:06:10 +01:00
Andreas Kling
f03d4a1ffe
LibJS/JIT: Resolve the PropertyLookupCache pointers at JIT time
...
We know where the lookup cache is by the time we're jitting code, so
let's put the pointer directly into the instruction stream.
2023-11-06 13:06:10 +01:00
Andreas Kling
3b6b9b9f25
LibJS: Take VM instead of Interpreter in more common implementations
2023-11-06 13:06:10 +01:00
Andreas Kling
234ed2d466
LibJS/JIT: Resolve the GetGlobal identifier at JIT time
2023-11-06 13:06:10 +01:00
Andreas Kling
c92954db36
LibJS/JIT: Resolve the GetById property name at JIT time
...
We can resolve the IdentifierTableIndex to a DeprecatedFlyString& once
when jitting the code, instead of every time GetById executes.
2023-11-06 13:06:10 +01:00
Simon Wanner
dd466ec83a
LibJS/Bytecode: Remove the PushDeclarativeEnvironment instruction
2023-11-03 07:31:11 +01:00
Simon Wanner
e400682fb1
LibJS/JIT: Support alternative entry point blocks
...
If Interpreter::run_and_return_frame is called with a specific entry
point we now map that to a native instruction address, which the JIT
code jumps to after the function prologue.
2023-11-03 07:31:11 +01:00
Idan Horowitz
38f3b78a1d
LibJS: Store the bytecode accumulator in a dedicated physical register
...
We now use a dedicated physical register to store the bytecode
accumulator, instead of loading and storing it to the memory everytime.
2023-11-02 22:35:35 +01:00
Simon Wanner
68f4d21de2
LibJS: Lazily collect stack trace information
...
The previous implementation was calling `backtrace()` for every
function call, which is quite slow.
Instead, this implementation provides VM::stack_trace() which unwinds
the native stack, maps it through NativeExecutable::get_source_range
and combines it with source ranges from interpreted call frames.
2023-11-02 07:37:41 +01:00
Simon Wanner
fb7b4b9c59
LibJS/JIT: Provide source location information for JIT code
...
This works by walking a backtrace until the currently executing
native executable is found, and then mapping the native address
to its bytecode instruction.
2023-10-31 07:07:17 +01:00
Hendiadyoin1
1341f4438d
LibJS: Save scheduled jumps when entering unwind contexts
...
These are then restored upon `ContinuePendingUnwind`.
This stops us from forgetting where we needed to jump when we do extra
try-catches in finally blocks.
Co-Authored-By: Jesús "gsus" Lapastora <cyber.gsuscode@gmail.com>
2023-10-30 13:10:08 +01:00
Hendiadyoin1
4da5b8ec67
LibJS: Reset scheduled-jump flag when throwing an exception
...
Otherwise we might attempt to follow the scheduled jump later
2023-10-30 13:10:08 +01:00
Hendiadyoin1
f5645e3c9c
LibJS: Use static unwind mappings for unwind related functions
2023-10-30 13:10:08 +01:00
Simon Wanner
ad81bf47bb
LibJS: Move GetObjectPropertyIterator impl to CommonImplementations
2023-10-29 22:57:19 +01:00
Jakub Berkop
6a7b9b85a4
LibJS/JIT: Compile the DeleteByValueWithThis instruction
2023-10-29 21:51:46 +01:00
Jakub Berkop
0776404e03
LibJS/JIT: Compile the DeleteByValue instruction
2023-10-29 21:51:46 +01:00
Jakub Berkop
f5fcd4596c
LibJS/JIT: Compile the DeleteById instruction
2023-10-29 21:51:46 +01:00
Simon Wanner
516bb01082
LibJS/Bytecode: Move Append impl to CommonImplementations
2023-10-29 17:36:09 +01:00
Simon Wanner
5179ff5fc9
LibJS/Bytecode: Move IteratorToArray impl to CommonImplementations
2023-10-29 17:36:09 +01:00
Simon Wanner
661dbbc83d
LibJS/Bytecode: Move object_to_iterator to CommonImplementations
2023-10-29 17:36:09 +01:00
Simon Wanner
d416cef9bb
LibJS/Bytecode: Move iterator_to_object to CommonImplementations
2023-10-29 17:36:09 +01:00
Simon Wanner
1eee110575
LibJS: Move SuperCallWithArgumentArray impl to CommonImplementations
2023-10-29 17:36:09 +01:00
Simon Wanner
f9fbb8cff2
LibJS/Bytecode: Move NewClass impl to CommonImplementations
2023-10-29 07:44:11 +01:00
Simon Wanner
54f1f7a51b
LibJS/Bytecode: Move CreateVariable impl to CommonImplementations
2023-10-29 07:44:11 +01:00
Idan Horowitz
b2d8d0c270
LibJS: Compile the CallWithArgumentArray bytecode instruction
2023-10-28 20:27:16 +02:00
Andreas Kling
c1551a64dc
LibJS/JIT: Compile the NewRegExp bytecode instruction
2023-10-27 19:07:22 +02:00
Andreas Kling
935d67cfcf
LibJS/JIT: Compile the GetCalleeAndThisFromEnvironment instruction
2023-10-27 19:07:22 +02:00
Andreas Kling
dabaaabfc0
LibJS/JIT: Support the GetVariable bytecode instruction
2023-10-27 19:07:22 +02:00
Andreas Kling
bcf7cdb679
LibJS/Bytecode: Un-templatize throw_if_needed_for_call()
2023-10-27 19:07:22 +02:00
Andreas Kling
c2aad0f573
LibJS/Bytecode: Move PutByValue impl to CommonImplementations
2023-10-27 19:07:22 +02:00
Andreas Kling
9f61cda27e
LibJS/Bytecode: Move NewFunction impl into CommonImplementations
2023-10-27 19:07:22 +02:00
Andreas Kling
393d90abe1
LibJS/Bytecode: Move SetVariable implementation to CommonImplementations
2023-10-27 19:07:22 +02:00
Andreas Kling
d368dc5d25
LibJS/Bytecode: Move TypeofVariable impl to CommonImplementations
2023-10-27 19:07:22 +02:00
Andreas Kling
640455b1d2
LibJS/JIT: Compile the Call bytecode instruction
...
I've left a FIXME about dealing with some throwsy cases.
2023-10-27 19:07:22 +02:00
Andreas Kling
7fc35fde09
LibJS/Bytecode: Move throw_if_needed_for_call to CommonImplementations
2023-10-27 19:07:22 +02:00
Andreas Kling
b56ecc7e34
LibJS/Bytecode: Move perform_call helper to CommonImplementations
2023-10-27 19:07:22 +02:00
Andreas Kling
580249d650
LibJS/JIT: Compile the PutById bytecode instruction
2023-10-27 19:07:22 +02:00
