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SPU LLVM: fix SPU termination (spu_escape) on Windows

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Adjust restored stack pointer for the lack of tail call.
This commit is contained in:
Nekotekina 2019-05-11 13:57:34 +03:00
parent cc8c635855
commit a74fd27e3d
1 changed files with 6 additions and 6 deletions
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12
rpcs3/Emu/Cell/SPURecompiler.cpp
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@ -4134,6 +4134,11 @@ public:
gateway->setLinkage(GlobalValue::InternalLinkage);
gateway->setCallingConv(CallingConv::GHC);
// Save host thread's stack pointer
const auto native_sp = spu_ptr<u64>(&spu_thread::saved_native_sp);
const auto rsp_name = MetadataAsValue::get(m_context, MDNode::get(m_context, {MDString::get(m_context, "rsp")}));
m_ir->CreateStore(m_ir->CreateCall(get_intrinsic<u64>(Intrinsic::read_register), {rsp_name}), native_sp);
m_ir->CreateCall(gateway, {m_thread, m_lsptr, m_base_pc})->setCallingConv(gateway->getCallingConv());
m_ir->CreateRetVoid();
m_ir->SetInsertPoint(label_stop);
@ -4155,11 +4160,6 @@ public:
set_function(gateway);
// Save host thread's stack pointer in the gateway
const auto native_sp = spu_ptr<u64>(&spu_thread::saved_native_sp);
const auto rsp_name = MetadataAsValue::get(m_context, MDNode::get(m_context, {MDString::get(m_context, "rsp")}));
m_ir->CreateStore(m_ir->CreateCall(get_intrinsic<u64>(Intrinsic::read_register), {rsp_name}), native_sp);
// Call the entry function chunk
const auto entry_chunk = add_function(m_pos);
tail_chunk(entry_chunk->chunk);
@ -4169,7 +4169,7 @@ public:
escape->setLinkage(GlobalValue::InternalLinkage);
m_ir->SetInsertPoint(BasicBlock::Create(m_context, "", escape));
const auto load_sp = m_ir->CreateLoad(_ptr<u64>(&*escape->arg_begin(), ::offset32(&spu_thread::saved_native_sp)));
m_ir->CreateCall(get_intrinsic<u64>(Intrinsic::write_register), {rsp_name, load_sp});
m_ir->CreateCall(get_intrinsic<u64>(Intrinsic::write_register), {rsp_name, m_ir->CreateSub(load_sp, m_ir->getInt64(8))});
m_ir->CreateRetVoid();
// Function that executes check_state and escapes if necessary