diff --git a/src/shader_recompiler/frontend/ir/basic_block.cpp b/src/shader_recompiler/frontend/ir/basic_block.cpp index 7c08b25ce..974efa4a0 100644 --- a/src/shader_recompiler/frontend/ir/basic_block.cpp +++ b/src/shader_recompiler/frontend/ir/basic_block.cpp @@ -22,6 +22,11 @@ void Block::AppendNewInst(Opcode op, std::initializer_list args) { PrependNewInst(end(), op, args); } +Block::iterator Block::PrependNewInst(iterator insertion_point, const Inst& base_inst) { + Inst* const inst{inst_pool->Create(base_inst)}; + return instructions.insert(insertion_point, *inst); +} + Block::iterator Block::PrependNewInst(iterator insertion_point, Opcode op, std::initializer_list args, u32 flags) { Inst* const inst{inst_pool->Create(op, flags)}; diff --git a/src/shader_recompiler/frontend/ir/basic_block.h b/src/shader_recompiler/frontend/ir/basic_block.h index 9ce1ed07e..fbfe98266 100644 --- a/src/shader_recompiler/frontend/ir/basic_block.h +++ b/src/shader_recompiler/frontend/ir/basic_block.h @@ -40,6 +40,9 @@ public: /// Appends a new instruction to the end of this basic block. void AppendNewInst(Opcode op, std::initializer_list args); + /// Prepends a copy of an instruction to this basic block before the insertion point. + iterator PrependNewInst(iterator insertion_point, const Inst& base_inst); + /// Prepends a new instruction to this basic block before the insertion point. iterator PrependNewInst(iterator insertion_point, Opcode op, std::initializer_list args = {}, u32 flags = 0); diff --git a/src/shader_recompiler/frontend/ir/microinstruction.cpp b/src/shader_recompiler/frontend/ir/microinstruction.cpp index 30b470bdd..97e2bf6af 100644 --- a/src/shader_recompiler/frontend/ir/microinstruction.cpp +++ b/src/shader_recompiler/frontend/ir/microinstruction.cpp @@ -47,6 +47,17 @@ Inst::Inst(IR::Opcode op_, u32 flags_) noexcept : op{op_}, flags{flags_} { } } +Inst::Inst(const Inst& base) : op{base.op}, flags{base.flags} { + if (base.op == Opcode::Phi) { + throw NotImplementedException("Copying phi node"); + } + std::construct_at(&args); + const size_t num_args{base.NumArgs()}; + for (size_t index = 0; index < num_args; ++index) { + SetArg(index, base.Arg(index)); + } +} + Inst::~Inst() { if (op == Opcode::Phi) { std::destroy_at(&phi_args); diff --git a/src/shader_recompiler/frontend/ir/value.h b/src/shader_recompiler/frontend/ir/value.h index 6c9ef6bdd..947579852 100644 --- a/src/shader_recompiler/frontend/ir/value.h +++ b/src/shader_recompiler/frontend/ir/value.h @@ -116,10 +116,10 @@ public: class Inst : public boost::intrusive::list_base_hook<> { public: explicit Inst(IR::Opcode op_, u32 flags_) noexcept; + explicit Inst(const Inst& base); ~Inst(); Inst& operator=(const Inst&) = delete; - Inst(const Inst&) = delete; Inst& operator=(Inst&&) = delete; Inst(Inst&&) = delete;