RPCSX/rpcsx
1
0
Fork 0
mirror of https://github.com/RPCSX/rpcsx.git synced 2026-04-04 22:19:02 +00:00
Code Issues Projects Releases Packages Wiki Activity

PPU LLVM: allow to drop setting SAT flag (optimization, module-wide)

Browse source 
Implement ppu_attr::has_mfvscr (partially, module-wide search).
If this instruction isn't found, allow to drop setting SAT flag.
It's based on presumption that only MFVSCR can retrieve SAT flag.
This commit is contained in:
Nekotekina 2021-06-25 10:50:42 +03:00
parent 86b194014b
commit c9d8e59dbf
5 changed files with 57 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

6
rpcs3/Emu/Cell/PPUTranslator.cpp
View file

@ -141,6 +141,7 @@ Function* PPUTranslator::Translate(const ppu_function& info)
// Instruction address is (m_addr + base)
const u64 base = m_reloc ? m_reloc->addr : 0;
m_addr = info.addr - base;
m_attr = info.attr;
// Don't emit check in small blocks without terminator
bool need_check = info.size >= 16;
@ -4816,7 +4817,10 @@ void PPUTranslator::SetOverflow(Value* bit)
void PPUTranslator::SetSat(Value* bit)
{
RegStore(m_ir->CreateOr(RegLoad(m_sat), bit), m_sat);
if (m_attr & ppu_attr::has_mfvscr)
{
RegStore(m_ir->CreateOr(RegLoad(m_sat), bit), m_sat);
}
}
Value* PPUTranslator::CheckTrapCondition(u32 to, Value* left, Value* right)