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// Copyright 2021 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <optional>
#include "common/bit_field.h"
#include "common/common_types.h"
#include "shader_recompiler/frontend/maxwell/translate/impl/impl.h"
namespace Shader::Maxwell {
namespace {
enum class VoteOp : u64 {
ALL,
ANY,
EQ,
};
[[nodiscard]] IR::U1 VoteOperation(IR::IREmitter& ir, const IR::U1& pred, VoteOp vote_op) {
switch (vote_op) {
case VoteOp::ALL:
return ir.VoteAll(pred);
case VoteOp::ANY:
return ir.VoteAny(pred);
case VoteOp::EQ:
return ir.VoteEqual(pred);
default:
throw NotImplementedException("Invalid VOTE op {}", vote_op);
}
}
void Vote(TranslatorVisitor& v, u64 insn) {
union {
u64 insn;
BitField<0, 8, IR::Reg> dest_reg;
BitField<39, 3, IR::Pred> pred_a;
BitField<42, 1, u64> neg_pred_a;
BitField<45, 3, IR::Pred> pred_b;
BitField<48, 2, VoteOp> vote_op;
} const vote{insn};
const IR::U1 vote_pred{v.ir.GetPred(vote.pred_a, vote.neg_pred_a != 0)};
v.ir.SetPred(vote.pred_b, VoteOperation(v.ir, vote_pred, vote.vote_op));
v.X(vote.dest_reg, v.ir.SubgroupBallot(vote_pred));
}
} // Anonymous namespace
void TranslatorVisitor::VOTE(u64 insn) {
Vote(*this, insn);
}
} // namespace Shader::Maxwell
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