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Minor optimization in SPU analyser

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Reduce vector copy/allocation
This commit is contained in:
Nekotekina 2019-03-22 04:19:33 +03:00
parent 4b381fbbb1
commit 7ea04d5d76
2 changed files with 10 additions and 7 deletions
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10
rpcs3/Emu/Cell/SPURecompiler.cpp
View File

@ -223,7 +223,7 @@ void spu_cache::initialize()
}
// Call analyser
std::vector<u32> func2 = compiler->block(ls.data(), func[0]);
const std::vector<u32>& func2 = compiler->analyse(ls.data(), func[0]);
if (func2.size() != size0)
{
@ -758,6 +758,7 @@ void spu_runtime::handle_return(spu_thread* _spu)
spu_recompiler_base::spu_recompiler_base()
{
result.reserve(8192);
}
spu_recompiler_base::~spu_recompiler_base()
@ -808,7 +809,7 @@ void spu_recompiler_base::dispatch(spu_thread& spu, void*, u8* rip)
}
// Compile
spu.jit->make_function(spu.jit->block(spu._ptr<u32>(0), spu.pc));
spu.jit->make_function(spu.jit->analyse(spu._ptr<u32>(0), spu.pc));
// Diagnostic
if (g_cfg.core.spu_block_size == spu_block_size_type::giga)
@ -870,11 +871,10 @@ void spu_recompiler_base::branch(spu_thread& spu, void*, u8* rip)
atomic_storage<u64>::release(*reinterpret_cast<u64*>(rip), result);
}
std::vector<u32> spu_recompiler_base::block(const be_t<u32>* ls, u32 entry_point)
const std::vector<u32>& spu_recompiler_base::analyse(const be_t<u32>* ls, u32 entry_point)
{
// Result: addr + raw instruction data
std::vector<u32> result;
result.reserve(256);
result.clear();
result.push_back(entry_point);
// Initialize block entries

7
rpcs3/Emu/Cell/SPURecompiler.h
View File

@ -209,6 +209,9 @@ private:
// For private use
std::bitset<0x10000> m_bits;
// Result of analyse(), to avoid copying and allocation
std::vector<u32> result;
public:
spu_recompiler_base();
@ -229,8 +232,8 @@ public:
// Target for the unresolved patch point (second arg is unused)
static void branch(spu_thread&, void*, u8* rip);
// Get the block at specified address
std::vector<u32> block(const be_t<u32>* ls, u32 lsa);
// Get the function data at specified address
const std::vector<u32>& analyse(const be_t<u32>* ls, u32 lsa);
// Print analyser internal state
void dump(std::string& out);