23 lines
741 B
C++
23 lines
741 B
C++
/* This file is part of the dynarmic project.
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* Copyright (c) 2016 MerryMage
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* This software may be used and distributed according to the terms of the GNU
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* General Public License version 2 or any later version.
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*/
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#include "common/iterator_util.h"
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#include "frontend/ir/basic_block.h"
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#include "ir_opt/passes.h"
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namespace Dynarmic::Optimization {
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void DeadCodeElimination(IR::Block& block) {
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// We iterate over the instructions in reverse order.
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// This is because removing an instruction reduces the number of uses for earlier instructions.
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for (auto& inst : Common::Reverse(block)) {
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if (!inst.HasUses() && !inst.MayHaveSideEffects()) {
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inst.Invalidate();
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}
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}
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}
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} // namespace Dynarmic
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