LadybirdBrowser/ladybird
1
1
Fork 0
mirror of https://github.com/LadybirdBrowser/ladybird.git synced 2024-07-14 16:50:23 +03:00
Code Issues Packages Projects Releases Wiki Activity

LibJS/Bytecode: Flatten the interpreter main loop (Clang only)

Browse Source 
This means inlining all the things. This yields a 40% speedup on the for
loop microbenchmark, and everything else gets faster as well. :^)

This makes compilation take foreeeever with GCC, so I'm only enabling it
for Clang in this commit. We should figure out how to make GCC compile
this without timing out CI, since the speedup is amazing.
This commit is contained in:
Andreas Kling 2024-05-06 16:50:48 +02:00
parent f4af056aa9
commit 7b93b8cea7
1 changed files with 8 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
Userland/Libraries/LibJS/Bytecode/Interpreter.cpp
View File

@ -330,7 +330,14 @@ Interpreter::HandleExceptionResponse Interpreter::handle_exception(size_t& progr
VERIFY_NOT_REACHED();
}
void Interpreter::run_bytecode(size_t entry_point)
// FIXME: GCC takes a *long* time to compile with flattening, and it will time out our CI. :|
#if defined(AK_COMPILER_CLANG)
# define FLATTEN_ON_CLANG FLATTEN
#else
# define FLATTEN_ON_CLANG
#endif
FLATTEN_ON_CLANG void Interpreter::run_bytecode(size_t entry_point)
{
auto& running_execution_context = vm().running_execution_context();
auto* locals = running_execution_context.locals.data();