dmaax/ladybird
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions
ladybird/Libraries/LibJS/Bytecode
History
Andreas Kling 710f1bdb74 LibJS: Produce negative zero from i32 multiplication fast path 
The i32 multiplication fast path in Mul::execute_impl was producing
+0 instead of -0 when one operand was negative and the other was
zero (e.g. `var a = -1, b = 0; a * b`).

This happened because i32 can't represent -0, so `Value(0)` was
always positive zero. We now fall through to the double path when
the i32 result is zero, which correctly handles the sign.

Also add comprehensive multiplication tests covering negative zero,
basic arithmetic, large integers, type coercion, NaN, and Infinity.
2026-02-08 20:59:20 +01:00
..
ASTCodegen.cpp LibJS: Reduce number of template literal op codes 2026-01-31 18:24:02 +01:00
BasicBlock.cpp LibJS: Stop worrying about Instruction destructors 2025-11-21 09:46:03 +01:00
BasicBlock.h LibJS: Replace source map HashMap with sorted Vector 2026-01-26 19:37:42 +01:00
BuiltinAbstractOperationsEnabled.h LibJS: Introduce NativeJavaScriptBackedFunction 2025-11-30 11:54:54 +01:00
Builtins.cpp Everywhere: Hoist the Libraries folder to the top-level 2024-11-10 12:50:45 +01:00
Builtins.h LibJS: Skip generic call when using regexp builtins in StringPrototype 2025-12-13 13:51:12 -06:00
Bytecode.def LibJS: Reduce number of template literal op codes 2026-01-31 18:24:02 +01:00
CodeGenerationError.cpp Everywhere: Hoist the Libraries folder to the top-level 2024-11-10 12:50:45 +01:00
CodeGenerationError.h LibJS: Revert Enable EXPLICIT_SYMBOL_EXPORT 2025-07-22 11:51:29 -04:00
Executable.cpp LibJS: Replace source map HashMap with sorted Vector 2026-01-26 19:37:42 +01:00
Executable.h LibJS: Replace source map HashMap with sorted Vector 2026-01-26 19:37:42 +01:00
FormatOperand.h LibJS: Flatten Operand to 32-bit index in bytecode instruction stream 2025-12-09 21:44:13 -06:00
Generator.cpp LibJS: Dead code elimination for always truthy/falsey conditions 2026-01-31 18:22:40 +01:00
Generator.h LibJS: Narrow bytecode source map offsets from size_t to u32 2026-01-26 19:37:42 +01:00
IdentifierTable.cpp LibJS+LibWeb+WebContent: Port JS::PropertyKey to UTF-16 2025-08-05 07:07:15 -04:00
IdentifierTable.h LibJS: Give Interpreter a direct pointer to the identifier table 2025-10-07 23:50:51 +02:00
Instruction.cpp LibJS: Flatten Operand to 32-bit index in bytecode instruction stream 2025-12-09 21:44:13 -06:00
Instruction.h LibJS: Add % (modulo) fast path in bytecode interpreter 2026-01-09 09:16:50 +01:00
Interpreter.cpp LibJS: Produce negative zero from i32 multiplication fast path 2026-02-08 20:59:20 +01:00
Interpreter.h LibJS: Cache fully-formed PropertyKeys in Executable 2025-12-11 14:34:45 -06:00
Label.cpp Everywhere: Hoist the Libraries folder to the top-level 2024-11-10 12:50:45 +01:00
Label.h LibJS: Revert Enable EXPLICIT_SYMBOL_EXPORT 2025-07-22 11:51:29 -04:00
Operand.h LibJS: Flatten Operand to 32-bit index in bytecode instruction stream 2025-12-09 21:44:13 -06:00
PropertyAccess.h LibJS: Take snapshot of prototype chain validity later in GetById 2026-01-09 09:16:50 +01:00
PropertyKeyTable.cpp LibJS: Cache fully-formed PropertyKeys in Executable 2025-12-11 14:34:45 -06:00
PropertyKeyTable.h LibJS+LibWeb: Add missing GC marking visits 2026-01-07 12:48:58 +01:00
PutKind.h LibJS: Rename Bytecode::Op::PropertyKind => Bytecode::PutKind 2025-10-11 20:08:58 +02:00
RegexTable.cpp LibJS: Don't rerun regexp optimizer every time a regexp literal is used 2025-12-12 11:43:35 -06:00
RegexTable.h LibJS: Don't rerun regexp optimizer every time a regexp literal is used 2025-12-12 11:43:35 -06:00
Register.h LibJS: Revert Enable EXPLICIT_SYMBOL_EXPORT 2025-07-22 11:51:29 -04:00
ScopedOperand.cpp LibJS: Flatten Operand to 32-bit index in bytecode instruction stream 2025-12-09 21:44:13 -06:00
ScopedOperand.h LibJS: Revert Enable EXPLICIT_SYMBOL_EXPORT 2025-07-22 11:51:29 -04:00
StringTable.cpp LibJS+LibWeb: Port interned bytecode strings to UTF-16 2025-08-14 10:27:08 +02:00
StringTable.h LibJS+LibWeb: Port interned bytecode strings to UTF-16 2025-08-14 10:27:08 +02:00