From 24b815d4a0a0597be7c456801e98922c6ca60e72 Mon Sep 17 00:00:00 2001
From: Andreas Kling <kling@serenityos.org>
Date: Wed, 5 Jul 2023 14:29:12 +0200
Subject: [PATCH] LibJS/Bytecode: Clear accumulator before entering while body

2 new passes on test262. :^)
---
 Userland/Libraries/LibJS/Bytecode/ASTCodegen.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Userland/Libraries/LibJS/Bytecode/ASTCodegen.cpp b/Userland/Libraries/LibJS/Bytecode/ASTCodegen.cpp
index 348fcd9c9b..ed915c5238 100644
--- a/Userland/Libraries/LibJS/Bytecode/ASTCodegen.cpp
+++ b/Userland/Libraries/LibJS/Bytecode/ASTCodegen.cpp
@@ -671,6 +671,7 @@ Bytecode::CodeGenerationErrorOr<void> WhileStatement::generate_labelled_evaluati
     generator.switch_to_basic_block(body_block);
     generator.begin_continuable_scope(Bytecode::Label { test_block }, label_set);
     generator.begin_breakable_scope(Bytecode::Label { end_block }, label_set);
+    generator.emit<Bytecode::Op::LoadImmediate>(js_undefined());
     TRY(m_body->generate_bytecode(generator));
     generator.end_breakable_scope();
     generator.end_continuable_scope();