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SPU LLVM: implement bisect helper (debugging tool)

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Added two new settings: SPU LLVM Lower/Upper Bound
By manipulating values, conditionally avoid compiling programs.
It uses hash of the programs (64-bit start hash of SHA-1).
Programs which aren't compiled run with interpreter.
This commit is contained in:
Nekotekina 2020-04-04 15:36:05 +03:00
parent 18dbd788e6
commit 8053d2602a
2 changed files with 41 additions and 8 deletions
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33
rpcs3/Emu/Cell/SPURecompiler.cpp
View file

@ -465,6 +465,29 @@ void spu_cache::initialize()
const u32 start = func.lower_bound; const u32 start = func.lower_bound;
const u32 size0 = ::size32(func.data); const u32 size0 = ::size32(func.data);
be_t<u64> hash_start;
{
sha1_context ctx;
u8 output[20];
sha1_starts(&ctx);
sha1_update(&ctx, reinterpret_cast<const u8*>(func.data.data()), func.data.size() * 4);
sha1_finish(&ctx, output);
std::memcpy(&hash_start, output, sizeof(hash_start));
}
// Check hash against allowed bounds
const bool inverse_bounds = g_cfg.core.spu_llvm_lower_bound > g_cfg.core.spu_llvm_upper_bound;
if ((!inverse_bounds && (hash_start < g_cfg.core.spu_llvm_lower_bound || hash_start > g_cfg.core.spu_llvm_upper_bound)) ||
(inverse_bounds && (hash_start < g_cfg.core.spu_llvm_lower_bound && hash_start > g_cfg.core.spu_llvm_upper_bound)))
{
spu_log.error("[Debug] Skipped function %s", fmt::base57(hash_start));
g_progr_pdone++;
result++;
continue;
}
// Initialize LS with function data only // Initialize LS with function data only
for (u32 i = 0, pos = start; i < size0; i++, pos += 4) for (u32 i = 0, pos = start; i < size0; i++, pos += 4)
{ {
@ -8848,7 +8871,15 @@ struct spu_fast : public spu_recompiler_base
// Install pointer carefully // Install pointer carefully
const bool added = !add_loc->compiled && add_loc->compiled.compare_and_swap_test(nullptr, fn); const bool added = !add_loc->compiled && add_loc->compiled.compare_and_swap_test(nullptr, fn);
if (added) // Check hash against allowed bounds
const bool inverse_bounds = g_cfg.core.spu_llvm_lower_bound > g_cfg.core.spu_llvm_upper_bound;
if ((!inverse_bounds && (m_hash_start < g_cfg.core.spu_llvm_lower_bound || m_hash_start > g_cfg.core.spu_llvm_upper_bound)) ||
(inverse_bounds && (m_hash_start < g_cfg.core.spu_llvm_lower_bound && m_hash_start > g_cfg.core.spu_llvm_upper_bound)))
{
spu_log.error("[Debug] Skipped function %s", fmt::base57(be_t<u64>{m_hash_start}));
}
else if (added)
{ {
// Send work to LLVM compiler thread // Send work to LLVM compiler thread
g_fxo->get<spu_llvm_thread>()->registered.push(m_hash_start, add_loc); g_fxo->get<spu_llvm_thread>()->registered.push(m_hash_start, add_loc);

2
rpcs3/Emu/system_config.h
View file

@ -52,6 +52,8 @@ struct cfg_root : cfg::node
cfg::_bool hook_functions{ this, "Hook static functions" }; cfg::_bool hook_functions{ this, "Hook static functions" };
cfg::set_entry load_libraries{ this, "Load libraries" }; cfg::set_entry load_libraries{ this, "Load libraries" };
cfg::_bool hle_lwmutex{ this, "HLE lwmutex" }; // Force alternative lwmutex/lwcond implementation cfg::_bool hle_lwmutex{ this, "HLE lwmutex" }; // Force alternative lwmutex/lwcond implementation
cfg::uint64 spu_llvm_lower_bound{ this, "SPU LLVM Lower Bound" };
cfg::uint64 spu_llvm_upper_bound{ this, "SPU LLVM Upper Bound", 0xffff'ffff'ffff'ffff };
cfg::_int<10, 3000> clocks_scale{ this, "Clocks scale", 100, true }; // Changing this from 100 (percentage) may affect game speed in unexpected ways cfg::_int<10, 3000> clocks_scale{ this, "Clocks scale", 100, true }; // Changing this from 100 (percentage) may affect game speed in unexpected ways
cfg::_enum<sleep_timers_accuracy_level> sleep_timers_accuracy{ this, "Sleep Timers Accuracy", cfg::_enum<sleep_timers_accuracy_level> sleep_timers_accuracy{ this, "Sleep Timers Accuracy",