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serenity/Userland/Libraries/LibJS/Bytecode
Luke Wilde 589c3771e9 LibJS: Only store MemberExpression object when loading a computed prop
When calling emit_load_from_reference with a MemberExpression, it is
only necessary to store the result of evaluating MemberExpression's
object when performing computed property lookup.

This allows us to skip unnecessary stores for identifier lookup.
For example, this would generate 3 unnecessary stores:
```
> Temporal.PlainDateTime.prototype.add
JS::Bytecode::Executable (REPL)
1:
[   0] GetVariable 0 (Temporal)
[  28] Store $2
[  30] GetById 1 (PlainDateTime)
[  40] Store $3
[  48] GetById 2 (prototype)
[  58] Store $4
[  60] GetById 3 (add)
```

With this, it generates:
```
> Temporal.PlainDateTime.prototype.add
JS::Bytecode::Executable (REPL)
1:
[   0] GetVariable 0 (Temporal)
[  28] GetById 1 (PlainDateTime)
[  38] GetById 2 (prototype)
[  48] GetById 3 (add)
```
2022-03-28 14:05:33 +02:00
..
Pass LibJS/Bytecode: Replace merged block references before copying them 2022-03-14 22:28:53 +01:00
ASTCodegen.cpp LibJS: Generate update Jump in for/in/of only if block is not terminated 2022-03-28 14:05:33 +02:00
BasicBlock.cpp LibJS: Always inline the bytecode instruction iterator's operator++ 2021-10-25 13:37:02 +02:00
BasicBlock.h LibJS: Always inline the bytecode instruction iterator's operator++ 2021-10-25 13:37:02 +02:00
CodeGenerationError.h LibJS: Make ASTNode::generate_bytecode() fallible 2022-02-13 14:41:33 +00:00
Executable.cpp LibJS: Add a separate "identifier table" to bytecode executables 2021-10-24 17:18:07 +02:00
Executable.h LibJS: Add a separate "identifier table" to bytecode executables 2021-10-24 17:18:07 +02:00
Generator.cpp LibJS: Only store MemberExpression object when loading a computed prop 2022-03-28 14:05:33 +02:00
Generator.h Libraries: Use default constructors/destructors in LibJS 2022-03-16 16:19:40 +00:00
IdentifierTable.cpp LibJS: Add a separate "identifier table" to bytecode executables 2021-10-24 17:18:07 +02:00
IdentifierTable.h LibJS: Add a separate "identifier table" to bytecode executables 2021-10-24 17:18:07 +02:00
Instruction.cpp LibJS: Move Instruction::length() to the Op.h header 2021-06-09 09:24:32 +02:00
Instruction.h LibJS/Bytecode: Add support for new.target 2022-03-19 22:01:52 +01:00
Interpreter.cpp LibJS: Add infallible variant of VM::push_execution_context() 2022-03-18 01:12:12 +01:00
Interpreter.h LibJS: More properly implement scoping rules in bytecode codegen 2022-02-13 14:41:33 +00:00
Label.h AK: Convert AK::Format formatting helpers to returning ErrorOr<void> 2021-11-17 00:21:13 +01:00
Op.cpp LibJS/Bytecode: Update NewArray stringifier to print a register range 2022-03-28 14:05:33 +02:00
Op.h LibJS/Bytecode: Add support for new.target 2022-03-19 22:01:52 +01:00
PassManager.h LibJS: Add a basic pass manager and add some basic passes 2021-06-15 22:06:33 +04:30
Register.h AK: Convert AK::Format formatting helpers to returning ErrorOr<void> 2021-11-17 00:21:13 +01:00
StringTable.cpp LibJS: Use String and move semantics in Bytecode::StringTable 2021-10-24 17:18:07 +02:00
StringTable.h LibJS: Use String and move semantics in Bytecode::StringTable 2021-10-24 17:18:07 +02:00