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EmitX64: Switch MXCSR when switching to interpreter

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This commit is contained in:
MerryMage
2016-08-07 22:47:17 +01:00
parent edb236ab07
commit 04c1a0d2de
3 changed files with 21 additions and 11 deletions
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9
src/backend_x64/emit_x64.cpp
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@@ -308,11 +308,9 @@ void EmitX64::EmitCallSupervisor(IR::Block&, IR::Inst* inst) {
reg_alloc.HostCall(nullptr, imm32);
code->STMXCSR(MDisp(R15, offsetof(JitState, guest_MXCSR)));
code->LDMXCSR(MDisp(R15, offsetof(JitState, save_host_MXCSR)));
code->SwitchMxcsrOnExit();
code->ABI_CallFunction(reinterpret_cast<void*>(cb.CallSVC));
code->STMXCSR(MDisp(R15, offsetof(JitState, save_host_MXCSR)));
code->LDMXCSR(MDisp(R15, offsetof(JitState, guest_MXCSR)));
code->SwitchMxcsrOnEntry();
}
void EmitX64::EmitGetCarryFromOp(IR::Block&, IR::Inst*) {
@@ -1514,8 +1512,9 @@ void EmitX64::EmitTerminalInterpret(IR::Term::Interpret terminal, Arm::LocationD
code->MOV(64, R(ABI_PARAM2), Imm64(reinterpret_cast<u64>(jit_interface)));
code->MOV(32, MJitStateReg(Arm::Reg::PC), R(ABI_PARAM1));
code->MOV(64, R(RSP), MDisp(R15, offsetof(JitState, save_host_RSP)));
code->SwitchMxcsrOnExit();
code->ABI_CallFunction(reinterpret_cast<void*>(cb.InterpreterFallback));
code->ReturnFromRunCode(); // TODO: Check cycles
code->ReturnFromRunCode(false); // TODO: Check cycles
}
void EmitX64::EmitTerminalReturnToDispatch(IR::Term::ReturnToDispatch, Arm::LocationDescriptor initial_location) {