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spu: Recompiler Interrupt optimizations - Pigeonhole optimize for branching pattern that is used to enable and disable interrupts used in code, this should lower amount of blocks that are compiled and avoid falling out of a block - Recompiled interupt check in some cases to stay in block instead of falling out to dispatcher

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This commit is contained in:
Jake 2017-11-30 20:50:01 -06:00 • committed by kd-11
parent ad97780c4f
commit 8b476b5bfa
3 changed files with 54 additions and 4 deletions
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29
rpcs3/Emu/Cell/SPUASMJITRecompiler.cpp
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@ -288,6 +288,31 @@ inline asmjit::X86Mem spu_recompiler::XmmConst(__m128i data)
return XmmConst(v128::fromV(data));
}
void spu_recompiler::CheckInterruptStatus(spu_opcode_t op)
{
if (op.d)
c->lock().btr(SPU_OFF_8(interrupts_enabled), 0);
else if (op.e) {
c->lock().bts(SPU_OFF_8(interrupts_enabled), 0);
c->mov(*qw0, SPU_OFF_32(ch_event_stat));
c->and_(*qw0, SPU_OFF_32(ch_event_mask));
c->and_(*qw0, SPU_EVENT_INTR_TEST);
c->cmp(*qw0, 0);
asmjit::Label noInterrupt = c->newLabel();
c->je(noInterrupt);
c->lock().btr(SPU_OFF_8(interrupts_enabled), 0);
c->mov(SPU_OFF_32(srr0), *addr);
c->mov(SPU_OFF_32(pc), 0);
FunctionCall();
c->mov(*addr, SPU_OFF_32(srr0));
c->bind(noInterrupt);
c->unuse(*qw0);
}
}
void spu_recompiler::InterpreterCall(spu_opcode_t op)
{
auto gate = [](SPUThread* _spu, u32 opcode, spu_inter_func_t _func) noexcept -> u32
@ -1013,7 +1038,7 @@ void spu_recompiler::BI(spu_opcode_t op)
{
c->mov(*addr, SPU_OFF_32(gpr, op.ra, &v128::_u32, 3));
c->and_(*addr, 0x3fffc);
if (op.d || op.e) c->or_(*addr, op.e << 26 | op.d << 27); // interrupt flags neutralize jump table
CheckInterruptStatus(op);
c->jmp(*jt);
}
@ -1037,7 +1062,7 @@ void spu_recompiler::IRET(spu_opcode_t op)
{
c->mov(*addr, SPU_OFF_32(srr0));
c->and_(*addr, 0x3fffc);
if (op.d || op.e) c->or_(*addr, op.e << 26 | op.d << 27); // interrupt flags neutralize jump table
CheckInterruptStatus(op);
c->jmp(*jt);
}