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serenity/Userland/Libraries/LibJS
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Andreas Kling 4699c81fc1 LibJS: Stop converting between Object <-> IteratorRecord all the time 
This patch makes IteratorRecord an Object. Although it's not exposed to
author code, this does allow us to store it in a VM register.

Now that we can store it in a VM register, we don't need to convert it
back and forth between IteratorRecord and Object when accessing it from
bytecode.

The big win here is avoiding 3 [[Get]] accesses on every iteration step
of for..of loops. There are also a bunch of smaller efficiencies gained.

20% speed-up on this microbenchmark:

    function go(a) {
        for (const p of a) {
        }
    }
    const a = [];
    a.length = 1_000_000;
    go(a);
2023-12-07 14:06:34 +01:00
..
Bytecode LibJS: Stop converting between Object <-> IteratorRecord all the time 2023-12-07 14:06:34 +01:00
Contrib/Test262 LibJS: Segregate GC-allocated objects by type 2023-11-19 12:10:31 +01:00
Heap LibJS: Always allocate ExecutionContext objects on the malloc heap 2023-11-29 09:48:18 +01:00
JIT LibJS: Stop converting between Object <-> IteratorRecord all the time 2023-12-07 14:06:34 +01:00
Runtime LibJS: Stop converting between Object <-> IteratorRecord all the time 2023-12-07 14:06:34 +01:00
Tests LibJS: Add basic support for module code with top-level await 2023-12-06 12:58:04 +01:00
AST.cpp LibJS+LibWeb: Another round of bringing module loading closer to spec 2023-12-03 20:46:55 +01:00
AST.h LibJS: Make Bytecode::Executable GC-allocated 2023-11-29 09:48:18 +01:00
CMakeLists.txt LibJS: Skip test262 tests with the CanBlockIsFalse flag 2023-11-30 09:51:46 -05:00
Console.cpp LibJS: Make ExecutionContext::function_name a GCPtr<PrimitiveString> 2023-11-29 09:48:18 +01:00
Console.h LibJS: Begin implementing console.dir 2023-06-22 06:46:27 +02:00
CyclicModule.cpp LibJS: Update CyclicModule to match current spec 2023-12-06 12:58:04 +01:00
CyclicModule.h LibJS: Update import referrer's [[LoadedModules]] in place 2023-12-03 20:46:55 +01:00
Forward.h LibJS: Stop converting between Object <-> IteratorRecord all the time 2023-12-07 14:06:34 +01:00
Lexer.cpp AK: Make "foo"_string infallible 2023-08-07 16:03:27 +02:00
Lexer.h Everywhere: Remove needless trailing semi-colons after functions 2023-07-08 10:32:56 +01:00
MarkupGenerator.cpp LibJS: Use OrderedHashMap for the Shape property table 2023-09-17 21:00:11 +02:00
MarkupGenerator.h LibJS: Fix redundancy-detection when printing raw values 2023-06-15 08:09:16 +02:00
Module.cpp LibJS: Update import referrer's [[LoadedModules]] in place 2023-12-03 20:46:55 +01:00
Module.h LibJS: Support LoadRequestedModule AO on SyntheticModule records 2023-12-03 20:46:55 +01:00
ModuleLoading.h LibJS+LibWeb: Another round of bringing module loading closer to spec 2023-12-03 20:46:55 +01:00
Parser.cpp LibJS+LibWeb: Another round of bringing module loading closer to spec 2023-12-03 20:46:55 +01:00
Parser.h LibJS+LibWeb: Another round of bringing module loading closer to spec 2023-12-03 20:46:55 +01:00
ParserError.cpp LibJS: Add to_string definitions to CodeGenerationError and ParserError 2023-02-17 09:14:23 -05:00
ParserError.h LibJS: Add to_string definitions to CodeGenerationError and ParserError 2023-02-17 09:14:23 -05:00
Position.h LibJS: Make line-and-column resolution fast for large minified JS 2023-09-12 17:21:42 +02:00
Print.cpp LibJS: Make Value::to_string_without_side_effects() infallible 2023-08-09 17:09:16 +02:00
Print.h Everywhere: Remove the AK:: qualifier from Stream usages 2023-02-13 00:50:07 +00:00
SafeFunction.h LibJS: Add GC graph dumper 2023-08-17 18:27:02 +02:00
Script.cpp LibJS: Segregate GC-allocated objects by type 2023-11-19 12:10:31 +01:00
Script.h LibJS: Update import referrer's [[LoadedModules]] in place 2023-12-03 20:46:55 +01:00
SourceCode.cpp LibJS: Make line-and-column resolution fast for large minified JS 2023-09-12 17:21:42 +02:00
SourceCode.h LibJS: Make line-and-column resolution fast for large minified JS 2023-09-12 17:21:42 +02:00
SourceRange.h LibJS: Make line-and-column resolution fast for large minified JS 2023-09-12 17:21:42 +02:00
SourceTextModule.cpp LibJS: Add basic support for module code with top-level await 2023-12-06 12:58:04 +01:00
SourceTextModule.h LibJS: Always allocate ExecutionContext objects on the malloc heap 2023-11-29 09:48:18 +01:00
SyntaxHighlighter.cpp LibSyntax+Userland: Make LibSyntax not depend on LibGUI 2023-08-29 07:57:39 -04:00
SyntaxHighlighter.h LibSyntax: Teach each highlighter about it's comment syntax 2022-11-27 18:28:43 -07:00
SyntheticModule.cpp LibJS: Support LoadRequestedModule AO on SyntheticModule records 2023-12-03 20:46:55 +01:00
SyntheticModule.h LibJS: Support LoadRequestedModule AO on SyntheticModule records 2023-12-03 20:46:55 +01:00
Token.cpp AK+Everywhere: Remove the null state of DeprecatedString 2023-10-13 18:33:21 +03:30
Token.h LibJS: Remove DeprecatedString usage from Token 2023-01-26 20:25:25 +00:00