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shader: Add copy constructor to instructions
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@ -22,6 +22,11 @@ void Block::AppendNewInst(Opcode op, std::initializer_list<Value> args) {
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PrependNewInst(end(), op, args);
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}
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Block::iterator Block::PrependNewInst(iterator insertion_point, const Inst& base_inst) {
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Inst* const inst{inst_pool->Create(base_inst)};
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return instructions.insert(insertion_point, *inst);
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}
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Block::iterator Block::PrependNewInst(iterator insertion_point, Opcode op,
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std::initializer_list<Value> args, u32 flags) {
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Inst* const inst{inst_pool->Create(op, flags)};
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@ -40,6 +40,9 @@ public:
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/// Appends a new instruction to the end of this basic block.
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void AppendNewInst(Opcode op, std::initializer_list<Value> args);
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/// Prepends a copy of an instruction to this basic block before the insertion point.
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iterator PrependNewInst(iterator insertion_point, const Inst& base_inst);
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/// Prepends a new instruction to this basic block before the insertion point.
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iterator PrependNewInst(iterator insertion_point, Opcode op,
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std::initializer_list<Value> args = {}, u32 flags = 0);
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@ -47,6 +47,17 @@ Inst::Inst(IR::Opcode op_, u32 flags_) noexcept : op{op_}, flags{flags_} {
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}
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}
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Inst::Inst(const Inst& base) : op{base.op}, flags{base.flags} {
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if (base.op == Opcode::Phi) {
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throw NotImplementedException("Copying phi node");
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}
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std::construct_at(&args);
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const size_t num_args{base.NumArgs()};
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for (size_t index = 0; index < num_args; ++index) {
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SetArg(index, base.Arg(index));
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}
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}
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Inst::~Inst() {
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if (op == Opcode::Phi) {
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std::destroy_at(&phi_args);
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@ -116,10 +116,10 @@ public:
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class Inst : public boost::intrusive::list_base_hook<> {
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public:
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explicit Inst(IR::Opcode op_, u32 flags_) noexcept;
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explicit Inst(const Inst& base);
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~Inst();
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Inst& operator=(const Inst&) = delete;
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Inst(const Inst&) = delete;
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Inst& operator=(Inst&&) = delete;
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Inst(Inst&&) = delete;
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