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Revert "LibJS/Bytecode: Bring back the bytecode optimization pipeline"

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This reverts commit 5b29974bfa.
This commit is contained in:
Andreas Kling 2024-03-06 08:36:19 +01:00
parent b37d84be58
commit 5b69413c4b
15 changed files with 65 additions and 962 deletions
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45
Userland/Libraries/LibJS/Bytecode/BasicBlock.h
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@ -8,7 +8,6 @@
#include <AK/Badge.h>
#include <AK/String.h>
#include <LibJS/Bytecode/Operand.h>
#include <LibJS/Forward.h>
#include <LibJS/Heap/Handle.h>
@ -36,7 +35,7 @@ public:
void grow(size_t additional_size);
void terminate(Badge<Generator>, size_t slot_offset) { terminate(slot_offset); }
void terminate(Badge<Generator>) { m_terminated = true; }
bool is_terminated() const { return m_terminated; }
String const& name() const { return m_name; }
@ -47,56 +46,14 @@ public:
BasicBlock const* handler() const { return m_handler; }
BasicBlock const* finalizer() const { return m_finalizer; }
Instruction const* terminator() const
{
VERIFY(m_terminated);
return reinterpret_cast<Instruction const*>(data() + m_terminator_offset);
}
template<typename OpType, typename... Args>
void append(u32 start_offset, u32 end_offset, Args&&... args)
{
VERIFY(!m_terminated);
size_t const slot_offset = size();
grow(sizeof(OpType));
void* slot = data() + slot_offset;
new (slot) OpType(forward<Args>(args)...);
if constexpr (OpType::IsTerminator)
terminate(slot_offset);
auto* op = static_cast<OpType*>(slot);
op->set_source_record({ start_offset, end_offset });
}
template<typename OpType, typename... Args>
void append_with_extra_operand_slots(u32 start_offset, u32 end_offset, size_t extra_operand_slots, Args&&... args)
{
VERIFY(!m_terminated);
size_t size_to_allocate = round_up_to_power_of_two(sizeof(OpType) + extra_operand_slots * sizeof(Operand), alignof(void*));
size_t slot_offset = size();
grow(size_to_allocate);
void* slot = data() + slot_offset;
new (slot) OpType(forward<Args>(args)...);
if constexpr (OpType::IsTerminator)
terminate(slot_offset);
auto* op = static_cast<OpType*>(slot);
op->set_source_record({ start_offset, end_offset });
}
private:
explicit BasicBlock(String name);
void terminate(size_t slot_offset)
{
m_terminated = true;
m_terminator_offset = slot_offset;
}
Vector<u8> m_buffer;
BasicBlock const* m_handler { nullptr };
BasicBlock const* m_finalizer { nullptr };
String m_name;
bool m_terminated { false };
size_t m_terminator_offset { 0 };
};
}