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Jit64: Jump to dispatcher_no_check from InitializeSpeculativeConstants

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Jumping to `dispatcher` requires first subtracting the downcount,
otherwise `dispatcher` may unpredictably jump to CoreTiming::Advance,
which could break determinism compatibility with JitArm64. We should
jump to `dispatcher_no_check` instead.
This commit is contained in:
JosJuice 2022-10-15 17:21:38 +02:00
parent 3af74d82a0
commit ec6a4115eb
1 changed files with 1 additions and 1 deletions
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Source/Core/Core/PowerPC/Jit64/Jit.cpp
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@ -1282,7 +1282,7 @@ void Jit64::IntializeSpeculativeConstants()
ABI_CallFunctionC(JitInterface::CompileExceptionCheck, ABI_CallFunctionC(JitInterface::CompileExceptionCheck,
static_cast<u32>(JitInterface::ExceptionType::SpeculativeConstants)); static_cast<u32>(JitInterface::ExceptionType::SpeculativeConstants));
ABI_PopRegistersAndAdjustStack({}, 0); ABI_PopRegistersAndAdjustStack({}, 0);
JMP(asm_routines.dispatcher, true); JMP(asm_routines.dispatcher_no_check, true);
SwitchToNearCode(); SwitchToNearCode();
} }
CMP(32, PPCSTATE(gpr[i]), Imm32(compileTimeValue)); CMP(32, PPCSTATE(gpr[i]), Imm32(compileTimeValue));