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SPU LLVM: improve stack mirror format in Mega mode

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Store first instruction for additional validation.
Should fix some problems.
I didn't touch ASMJIT.
This commit is contained in:
Nekotekina 2020-04-04 21:33:46 +03:00
parent 8053d2602a
commit ae140a1ac9
1 changed files with 20 additions and 5 deletions
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25
rpcs3/Emu/Cell/SPURecompiler.cpp
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@ -3252,6 +3252,9 @@ class spu_llvm_recompiler : public spu_recompiler_base, public cpu_translator
// Patchpoint unique id
u32 m_pp_id = 0;
// Next opcode
u32 m_next_op = 0;
// Current function (chunk)
llvm::Function* m_function;
@ -4625,6 +4628,12 @@ public:
break;
}
// Set variable for set_link()
if (m_pos + 4 >= end)
m_next_op = 0;
else
m_next_op = func.data[(m_pos - start) / 4 + 1];
// Execute recompiler function (TODO)
(this->*decode(op))({op});
}
@ -7929,23 +7938,27 @@ public:
}
m_ir->CreateStore(addr.value, spu_ptr<u32>(&spu_thread::pc));
const auto type = m_finfo->chunk->getFunctionType()->getPointerTo()->getPointerTo();
if (ret && g_cfg.core.spu_block_size >= spu_block_size_type::mega)
{
// Compare address stored in stack mirror with addr
const auto stack0 = eval(zext<u64>(sp) + ::offset32(&spu_thread::stack_mirror));
const auto stack1 = eval(stack0 + 8);
const auto _ret = m_ir->CreateLoad(m_ir->CreateBitCast(m_ir->CreateGEP(m_thread, stack0.value), type));
const auto _ret = m_ir->CreateLoad(m_ir->CreateBitCast(m_ir->CreateGEP(m_thread, stack0.value), get_type<u64*>()));
const auto link = m_ir->CreateLoad(m_ir->CreateBitCast(m_ir->CreateGEP(m_thread, stack1.value), get_type<u64*>()));
const auto fail = llvm::BasicBlock::Create(m_context, "", m_function);
const auto done = llvm::BasicBlock::Create(m_context, "", m_function);
m_ir->CreateCondBr(m_ir->CreateICmpEQ(addr.value, m_ir->CreateTrunc(link, get_type<u32>())), done, fail, m_md_likely);
const auto next = llvm::BasicBlock::Create(m_context, "", m_function);
m_ir->CreateCondBr(m_ir->CreateICmpEQ(addr.value, m_ir->CreateTrunc(link, get_type<u32>())), next, fail, m_md_likely);
m_ir->SetInsertPoint(next);
const auto cmp2 = m_ir->CreateLoad(m_ir->CreateBitCast(m_ir->CreateGEP(m_lsptr, addr.value), get_type<u32*>()));
m_ir->CreateCondBr(m_ir->CreateICmpEQ(cmp2, m_ir->CreateTrunc(_ret, get_type<u32>())), done, fail, m_md_likely);
m_ir->SetInsertPoint(done);
// Clear stack mirror and return by tail call to the provided return address
m_ir->CreateStore(splat<u64[2]>(-1).eval(m_ir), m_ir->CreateBitCast(m_ir->CreateGEP(m_thread, stack0.value), get_type<u64(*)[2]>()));
tail_chunk(_ret, m_ir->CreateTrunc(m_ir->CreateLShr(link, 32), get_type<u32>()));
const auto targ = m_ir->CreateAdd(m_ir->CreateLShr(_ret, 32), m_ir->getInt64(reinterpret_cast<u64>(jit_runtime::alloc(0, 0))));
tail_chunk(m_ir->CreateIntToPtr(targ, m_finfo->chunk->getFunctionType()->getPointerTo()), m_ir->CreateTrunc(m_ir->CreateLShr(link, 32), get_type<u32>()));
m_ir->SetInsertPoint(fail);
}
@ -8309,8 +8322,10 @@ public:
const auto pfunc = add_function(m_pos + 4);
const auto stack0 = eval(zext<u64>(extract(get_reg_fixed(1), 3) & 0x3fff0) + ::offset32(&spu_thread::stack_mirror));
const auto stack1 = eval(stack0 + 8);
const auto rel_ptr = m_ir->CreateSub(m_ir->CreatePtrToInt(pfunc->chunk, get_type<u64>()), m_ir->getInt64(reinterpret_cast<u64>(jit_runtime::alloc(0, 0))));
const auto ptr_plus_op = m_ir->CreateOr(m_ir->CreateShl(rel_ptr, 32), m_ir->getInt64(m_next_op));
const auto base_plus_pc = m_ir->CreateOr(m_ir->CreateShl(m_ir->CreateZExt(m_base_pc, get_type<u64>()), 32), m_ir->getInt64(m_pos + 4));
m_ir->CreateStore(pfunc->chunk, m_ir->CreateBitCast(m_ir->CreateGEP(m_thread, stack0.value), pfunc->chunk->getType()->getPointerTo()));
m_ir->CreateStore(ptr_plus_op, m_ir->CreateBitCast(m_ir->CreateGEP(m_thread, stack0.value), get_type<u64*>()));
m_ir->CreateStore(base_plus_pc, m_ir->CreateBitCast(m_ir->CreateGEP(m_thread, stack1.value), get_type<u64*>()));
}
}