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IRJit: If we're in "JIT using IR" mode, don't accidentally optimize for the interpreter. #19268

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Jun 11, 2024
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IRJit: If we're in "JIT using IR" mode, don't accidentally optimize for the interpreter. #19268

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5 changes: 3 additions & 2 deletions Core/MIPS/IR/IRJit.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -44,11 +44,12 @@

namespace MIPSComp {

IRJit::IRJit(MIPSState *mipsState) : frontend_(mipsState->HasDefaultPrefix()), mips_(mipsState) {
IRJit::IRJit(MIPSState *mipsState, bool actualJit) : frontend_(mipsState->HasDefaultPrefix()), mips_(mipsState) {
// u32 size = 128 * 1024;
InitIR();

jo.optimizeForInterpreter = true;
// If this IRJit instance will be used to drive a "JIT using IR", don't optimize for interpretation.
jo.optimizeForInterpreter = !actualJit;

IROptions opts{};
opts.disableFlags = g_Config.uJitDisableFlags;
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2 changes: 1 addition & 1 deletion Core/MIPS/IR/IRJit.h
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Expand Up @@ -195,7 +195,7 @@ class IRBlockCache : public JitBlockCacheDebugInterface {

class IRJit : public JitInterface {
public:
IRJit(MIPSState *mipsState);
IRJit(MIPSState *mipsState, bool actualJit);
~IRJit();

void DoState(PointerWrap &p) override;
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2 changes: 1 addition & 1 deletion Core/MIPS/IR/IRNativeCommon.cpp
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Expand Up @@ -481,7 +481,7 @@ void IRNativeBackend::CompileIRInst(IRInst inst) {
}

IRNativeJit::IRNativeJit(MIPSState *mipsState)
: IRJit(mipsState), debugInterface_(blocks_) {}
: IRJit(mipsState, true), debugInterface_(blocks_) {}

void IRNativeJit::Init(IRNativeBackend &backend) {
backend_ = &backend;
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4 changes: 2 additions & 2 deletions Core/MIPS/MIPS.cpp
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Expand Up @@ -214,7 +214,7 @@ void MIPSState::Init() {
if (PSP_CoreParameter().cpuCore == CPUCore::JIT || PSP_CoreParameter().cpuCore == CPUCore::JIT_IR) {
MIPSComp::jit = MIPSComp::CreateNativeJit(this, PSP_CoreParameter().cpuCore == CPUCore::JIT_IR);
} else if (PSP_CoreParameter().cpuCore == CPUCore::IR_INTERPRETER) {
MIPSComp::jit = new MIPSComp::IRJit(this);
MIPSComp::jit = new MIPSComp::IRJit(this, false);
} else {
MIPSComp::jit = nullptr;
}
Expand Down Expand Up @@ -252,7 +252,7 @@ void MIPSState::UpdateCore(CPUCore desired) {
MIPSComp::jit = nullptr;
delete oldjit;
}
newjit = new MIPSComp::IRJit(this);
newjit = new MIPSComp::IRJit(this, false);
break;

case CPUCore::INTERPRETER:
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