/*! * Copyright (c) 2018 by Contributors * \file ir_builder.h * \brief Utility for building SPIRV code block */ #ifndef TVM_CODEGEN_SPIRV_CODEGEN_SPIRV_H_ #define TVM_CODEGEN_SPIRV_CODEGEN_SPIRV_H_ #include <tvm/ir.h> #include <tvm/ir_functor_ext.h> #include <tvm/lowered_func.h> #include <vector> #include "./ir_builder.h" #include "../../runtime/thread_storage_scope.h" namespace tvm { namespace codegen { using namespace ir; /*! * \brief Code generator into SPIRV */ class CodeGenSPIRV: public ExprFunctor<spirv::Value(const Expr&)>, public StmtFunctor<void(const Stmt&)> { public: /*! * \brief Compile and add function f to the current module. * \param f The function to be added. * \return The final spirv module. */ virtual std::vector<uint32_t> BuildFunction(const LoweredFunc& f); /*! * \brief Create Value for expression e * \param e The expression to be created value for. * \return created value. */ spirv::Value MakeValue(const Expr& e) { return VisitExpr(e); } // override codegen spirv::Value VisitExpr_(const Variable* op) override; spirv::Value VisitExpr_(const Cast* op) override; spirv::Value VisitExpr_(const IntImm* op) override; spirv::Value VisitExpr_(const UIntImm* op) override; spirv::Value VisitExpr_(const FloatImm* op) override; spirv::Value VisitExpr_(const StringImm* op) override; spirv::Value VisitExpr_(const Add* op) override; spirv::Value VisitExpr_(const Sub* op) override; spirv::Value VisitExpr_(const Mul* op) override; spirv::Value VisitExpr_(const Div* op) override; spirv::Value VisitExpr_(const Mod* op) override; spirv::Value VisitExpr_(const Min* op) override; spirv::Value VisitExpr_(const Max* op) override; spirv::Value VisitExpr_(const LT* op) override; spirv::Value VisitExpr_(const LE* op) override; spirv::Value VisitExpr_(const GT* op) override; spirv::Value VisitExpr_(const GE* op) override; spirv::Value VisitExpr_(const EQ* op) override; spirv::Value VisitExpr_(const NE* op) override; spirv::Value VisitExpr_(const And* op) override; spirv::Value VisitExpr_(const Or* op) override; spirv::Value VisitExpr_(const Not* op) override; spirv::Value VisitExpr_(const Select* op) override; spirv::Value VisitExpr_(const Let* op) override; spirv::Value VisitExpr_(const Call* op) override; spirv::Value VisitExpr_(const Ramp* op) override; spirv::Value VisitExpr_(const Broadcast* op) override; spirv::Value VisitExpr_(const Load* op) override; // stmt void VisitStmt_(const Store* op) override; void VisitStmt_(const For* op) override; void VisitStmt_(const IfThenElse* op) override; void VisitStmt_(const Allocate* op) override; void VisitStmt_(const AttrStmt* op) override; void VisitStmt_(const AssertStmt* op) override; void VisitStmt_(const LetStmt* op) override; void VisitStmt_(const Block* op) override; void VisitStmt_(const Evaluate* op) override; void VisitStmt_(const ProducerConsumer* op) override; protected: /*! \brief The storage information */ struct StorageInfo { /*! \brief The storage scope */ runtime::StorageScope scope; /*! \brief Whether it is volatile */ bool is_volatile{false}; /*! \brief Whether it is volatile */ bool content_fixed{false}; /*! \brief Current content type */ Type content_type{Handle()}; // Update content type if it hasn't beenupdated. void UpdateContentType(Type type) { if (content_fixed) { CHECK_EQ(type, content_type) << "Cannot use two different content type in GLSL model"; } else { this->content_type = type; content_fixed = true; } } }; // Reset the state so it works for a new function. void InitFuncState(); // Get the thread index spirv::Value GetThreadIndex(const IterVar& iv, const Expr& extent); spirv::Value CreateStorageSync(const Call* op); void Scalarize(const Expr& e, std::function<void(int i, spirv::Value v)> f); // The builder std::unique_ptr<spirv::IRBuilder> builder_; // Work group size of three uint32_t workgroup_size_[3]; // Likely branch uint32_t weight_likely_branch_{128}; // the storage scope of allocation std::unordered_map<const Variable*, StorageInfo> storage_info_; // The definition of local variable. std::unordered_map<const Variable*, spirv::Value> var_map_; // The alignment information std::unordered_map<const Variable*, arith::ModularEntry> align_map_; }; } // namespace codegen } // namespace tvm #endif // TVM_CODEGEN_SPIRV_CODEGEN_SPIRV_H_