LibJS/Bytecode: Add Call opcode for fixed-argument-count calls

This avoids the overhead of allocating a new Array on every function call, saving a substantial amount of time and avoiding GC thrash. This patch only makes use of Op::Call in CallExpression. There are other places we should codegen this op. We should also do the same for super expression calls. ~5% speed-up on Kraken/stanford-crypto-ccm.js
Author: https://github.com/awesomekling Commit: c37b204ce1 Pull-request: https://github.com/SerenityOS/serenity/pull/19756 Reviewed-by: https://github.com/Hendiadyoin1
2025-07-31 05:09:12 +00:00 · 2023-07-02 16:33:00 +02:00 · 2023-07-02 16:33:00 +02:00 · c37b204ce1 · 2024-07-17 23:02:37 +09:00
commit c37b204ce1
parent 7eb87dec9f
5 changed files with 135 additions and 41 deletions
--- a/Userland/Libraries/LibJS/Bytecode/Instruction.h
+++ b/Userland/Libraries/LibJS/Bytecode/Instruction.h
@ -18,6 +18,7 @@
    O(BitwiseOr)                     \
    O(BitwiseXor)                    \
    O(BlockDeclarationInstantiation) \
+    O(Call)                          \
    O(CallWithArgumentArray)         \
    O(ConcatString)                  \
    O(ContinuePendingUnwind)         \