| /* |
| * Copyright (c) 2023 Arm Limited. |
| * |
| * SPDX-License-Identifier: MIT |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a copy |
| * of this software and associated documentation files (the "Software"), to |
| * deal in the Software without restriction, including without limitation the |
| * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or |
| * sell copies of the Software, and to permit persons to whom the Software is |
| * furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included in all |
| * copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| * SOFTWARE. |
| */ |
| |
| #ifndef CKW_INCLUDE_CKW_KERNELWRITERHELPER_H |
| #define CKW_INCLUDE_CKW_KERNELWRITERHELPER_H |
| |
| #include "ckw/KernelWriter.h" |
| #include "ckw/TensorOperand.h" |
| #include "ckw/TileOperand.h" |
| |
| #include <iostream> |
| #include <type_traits> |
| |
| /* |
| * By including this header file you will be able to supplement the default |
| * Compute Kernel Writer API with additional syntax to help ease the use of CKW. |
| * |
| * To use the KernelWriterHelper you need to wrap your instance of KernelWriter |
| * (or any class deriving from KernelWriter): |
| * KernelWriterHelper<KernelWriter> writer; |
| * The resulting writer object comprises the original KernelWriter |
| * functionality (drop-in replacement), but extends the syntax as follows. |
| * |
| * Common functions/operators have natural syntax: |
| * 1. Unary expressions: |
| * writer.op_assign(dst, !src); // Logical NOT |
| * writer.op_assign(dst, ~src); // Bitwise NOT |
| * |
| * 2. Binary expressions: |
| * writer.op_assign(dst, lhs + rhs); // Addition |
| * writer.op_assign(dst, lhs - rhs); // Subtraction |
| * writer.op_assign(dst, lhs * rhs); // Multiplication |
| * writer.op_assign(dst, lhs / rhs); // Division |
| * writer.op_assign(dst, lhs % rhs); // Modulo |
| * writer.op_assign(dst, lhs == rhs); // Equality |
| * writer.op_assign(dst, lhs < rhs); // Less-than |
| * writer.op_assign(dst, lhs <= rhs); // Less-than-or-equal |
| * writer.op_assign(dst, lhs > rhs); // Greater-than |
| * writer.op_assign(dst, lhs >= rhs); // Greater-than-or-equal |
| * writer.op_assign(dst, lhs ^ rhs); // Bitwise XOR |
| * writer.op_assign(dst, logical_and(lhs, rhs)); // Logical AND |
| * writer.op_assign(dst, logical_or(lhs, rhs)); // Logical OR |
| * |
| * 3. Unary elementwise functions: |
| * writer.op_assign(dst, exp(src)); // Exponent |
| * writer.op_assign(dst, tanh(src)); // Hyperbolic tangent |
| * writer.op_assign(dst, sqrt(src)); // Square root |
| * writer.op_assign(dst, erf(src)); // Error function |
| * writer.op_assign(dst, fabs(src)); // Absolute of floating-point number |
| * writer.op_assign(dst, log(src)); // Natural logarithm |
| * writer.op_assign(dst, round(src)); // Round |
| * writer.op_assign(dst, sizeOf(src)); // sizeof |
| * |
| * 4. Binary elementwise functions: |
| * writer.op_assign(dst, max(first, second)); // Max |
| * writer.op_assign(dst, min(first, second)); // Min |
| * |
| * 5. Ternary elementwise functions: |
| * writer.op_assign(dst, select(first, second, third)); // Select |
| * |
| * NOTE: All the above examples support nesting, so you could write |
| * something like: writer.op_assign(dst, src * (log(arg) + sqrt(abs(arg))); |
| * |
| * |
| * 6. If-statements. The preceding syntax also allows easier writing of if-statements: |
| * writer.op_if(<cond>, <body>); |
| * |
| * For example: |
| * writer.op_if(exp(first_arg) == dst, [&]{ |
| * //... |
| * }).op_else_if(exp(first_arg) > dst, [&]{ |
| * //... |
| * }).op_else([&] { |
| * //... |
| * }); |
| * |
| * 7. For-loops. A similar syntax exists for for-loops: |
| * writer.op_for_loop(<cond>, <updater>, <body>); |
| * |
| * For example: |
| * writer.op_for_loop(index < limit, index += step, [&]{ |
| * //... |
| * }); |
| * |
| * NOTE: There are limitations on the for-loop <cond> and <updater> parameters. |
| * In neither the <cond> (Binary expression) or <updater> (Increment/Decrement) |
| * is it allowed to use nesting. For example, `(index + other) < limit` and |
| * `index < round(limit)` are invalid <cond> parameters. This is because the |
| * semantics of for-loops rely on the condition being evaluated at every iteration, |
| * but as temporary variables might be defined for nested expressions the semantics |
| * cannot be guaranteed. |
| */ |
| |
| namespace ckw |
| { |
| |
| // ================================================== |
| // Type traits |
| // ================================================== |
| |
| /** Specifies if the type can be used as an operand for functions (e.g. max), operations (e.g. *), or assignments. */ |
| template <typename T> |
| struct can_be_operand : ::std::false_type |
| { |
| }; |
| |
| /** Specifies if the type can be assigned/written to. */ |
| template <typename T> |
| struct can_be_assigned : ::std::false_type |
| { |
| }; |
| |
| template <> |
| struct can_be_operand<TileOperand &> : ::std::true_type |
| { |
| }; |
| |
| template <> |
| struct can_be_assigned<TileOperand &> : ::std::true_type |
| { |
| }; |
| |
| // ================================================== |
| // Assignment |
| // ================================================== |
| |
| /** AST node for assignments. |
| * |
| * Note that \p TRight must be an operand, and \p TLeft must be assignable. |
| * |
| * @tparam TLeft The type of the destination of the assignment. |
| * @tparam TRight The type of the source assigned to the destination. |
| */ |
| template <typename TLeft, |
| typename TRight, |
| typename = ::std::enable_if<can_be_operand<TRight>::value && can_be_assigned<TLeft>::value>> |
| struct Assignment |
| { |
| TLeft lhs; |
| TRight rhs; |
| AssignmentOp opcode; |
| }; |
| |
| /** Represents the expression: `\p lhs += \p rhs`. |
| * |
| * @tparam TLeft The type of the LHS of the assignment. |
| * @tparam TRight The type of the RHS of the assignment. |
| * @param[in] lhs The LHS of the assignment. |
| * @param[in] rhs The RHS of the assignment. |
| * @return The resulting AST node. |
| */ |
| template <typename TLeft, typename TRight> |
| inline Assignment<TLeft, TRight> operator+=(TLeft &&lhs, TRight &&rhs) |
| { |
| return Assignment<TLeft, TRight>{std::forward<TLeft>(lhs), std::forward<TRight>(rhs), AssignmentOp::Increment}; |
| } |
| |
| /** Represents the expression: `\p lhs -= \p rhs`. |
| * |
| * @tparam TLeft The type of the LHS of the assignment. |
| * @tparam TRight The type of the RHS of the assignment. |
| * @param[in] lhs The LHS of the assignment. |
| * @param[in] rhs The RHS of the assignment. |
| * @return The resulting AST node. |
| */ |
| template <typename TLeft, typename TRight> |
| inline Assignment<TLeft, TRight> operator-=(TLeft &&lhs, TRight &&rhs) |
| { |
| return Assignment<TLeft, TRight>{std::forward<TLeft>(lhs), std::forward<TRight>(rhs), AssignmentOp::Decrement}; |
| } |
| |
| // ================================================== |
| // Unary expression |
| // ================================================== |
| |
| /** AST node for unary expressions. |
| * |
| * Note that \p TSrc must be an operand. |
| * |
| * @tparam TSrc The type of the argument to the expression. |
| */ |
| template <typename TSrc, typename = ::std::enable_if<can_be_operand<TSrc>::value>> |
| struct UnaryExpression |
| { |
| TSrc src; |
| UnaryOp opcode; |
| }; |
| |
| template <typename TLeft> |
| struct can_be_operand<UnaryExpression<TLeft>> : ::std::true_type |
| { |
| }; |
| |
| /** Represents the expression: `!\p src`. |
| * |
| * @tparam TSrc The type of the argument. |
| * @param[in] src The argument. |
| * @return The resulting AST node. |
| */ |
| template <typename TSrc> |
| inline UnaryExpression<TSrc> operator!(TSrc &&src) |
| { |
| return UnaryExpression<TSrc>{std::forward<TSrc>(src), UnaryOp::LogicalNot}; |
| } |
| |
| /** Represents the expression: `~\p src`. |
| * |
| * @tparam TSrc The type of the argument. |
| * @param[in] src The argument. |
| * @return The resulting AST node. |
| */ |
| template <typename TSrc> |
| inline UnaryExpression<TSrc> operator~(TSrc &&src) |
| { |
| return UnaryExpression<TSrc>{std::forward<TSrc>(src), UnaryOp::BitwiseNot}; |
| } |
| |
| // ================================================== |
| // Binary expressions |
| // ================================================== |
| |
| /** AST node for binary expressions. |
| * |
| * Note that both \p TLeft and \p TRight must be operands. |
| * |
| * @tparam TLeft The type of the left argument of the expression. |
| * @tparam TRight The type of the right argument of the expression. |
| */ |
| template <typename TLeft, |
| typename TRight, |
| typename = ::std::enable_if_t<can_be_operand<TLeft>::value && can_be_operand<TRight>::value>> |
| struct BinaryExpression |
| { |
| TLeft lhs; |
| TRight rhs; |
| BinaryOp opcode; |
| }; |
| |
| template <typename TLeft, typename TRight> |
| struct can_be_operand<BinaryExpression<TLeft, TRight>> : ::std::true_type |
| { |
| }; |
| |
| /** Represents the expression: `\p lhs + \p rhs`. |
| * |
| * @tparam TLeft The type of the LHS of the expression. |
| * @tparam TRight The type of the RHS of the expression. |
| * @param[in] lhs The LHS of the expression. |
| * @param[in] rhs The RHS of the expression. |
| * @return The resulting AST node. |
| */ |
| template <typename TLeft, typename TRight> |
| inline BinaryExpression<TLeft, TRight> operator+(TLeft &&lhs, TRight &&rhs) |
| { |
| return BinaryExpression<TLeft, TRight>{std::forward<TLeft>(lhs), std::forward<TRight>(rhs), BinaryOp::Add}; |
| } |
| |
| /** Represents the expression: `\p lhs - \p rhs`. |
| * |
| * @tparam TLeft The type of the LHS of the expression. |
| * @tparam TRight The type of the RHS of the expression. |
| * @param[in] lhs The LHS of the expression. |
| * @param[in] rhs The RHS of the expression. |
| * @return The resulting AST node. |
| */ |
| template <typename TLeft, typename TRight> |
| inline BinaryExpression<TLeft, TRight> operator-(TLeft &&lhs, TRight &&rhs) |
| { |
| return BinaryExpression<TLeft, TRight>{std::forward<TLeft>(lhs), std::forward<TRight>(rhs), BinaryOp::Sub}; |
| } |
| |
| /** Represents the expression: `\p lhs * \p rhs`. |
| * |
| * @tparam TLeft The type of the LHS of the expression. |
| * @tparam TRight The type of the RHS of the expression. |
| * @param[in] lhs The LHS of the expression. |
| * @param[in] rhs The RHS of the expression. |
| * @return The resulting AST node. |
| */ |
| template <typename TLeft, typename TRight> |
| inline BinaryExpression<TLeft, TRight> operator*(TLeft &&lhs, TRight &&rhs) |
| { |
| return BinaryExpression<TLeft, TRight>{std::forward<TLeft>(lhs), std::forward<TRight>(rhs), BinaryOp::Mul}; |
| } |
| |
| /** Represents the expression: `\p lhs / \p rhs`. |
| * |
| * @tparam TLeft The type of the LHS of the expression. |
| * @tparam TRight The type of the RHS of the expression. |
| * @param[in] lhs The LHS of the expression. |
| * @param[in] rhs The RHS of the expression. |
| * @return The resulting AST node. |
| */ |
| template <typename TLeft, typename TRight> |
| inline BinaryExpression<TLeft, TRight> operator/(TLeft &&lhs, TRight &&rhs) |
| { |
| return BinaryExpression<TLeft, TRight>{std::forward<TLeft>(lhs), std::forward<TRight>(rhs), BinaryOp::Div}; |
| } |
| |
| /** Represents the expression: `\p lhs % \p rhs`. |
| * |
| * @tparam TLeft The type of the LHS of the expression. |
| * @tparam TRight The type of the RHS of the expression. |
| * @param[in] lhs The LHS of the expression. |
| * @param[in] rhs The RHS of the expression. |
| * @return The resulting AST node. |
| */ |
| template <typename TLeft, typename TRight> |
| inline BinaryExpression<TLeft, TRight> operator%(TLeft &&lhs, TRight &&rhs) |
| { |
| return BinaryExpression<TLeft, TRight>{std::forward<TLeft>(lhs), std::forward<TRight>(rhs), BinaryOp::Mod}; |
| } |
| |
| /** Represents the expression: `\p lhs == \p rhs`. |
| * |
| * @tparam TLeft The type of the LHS of the expression. |
| * @tparam TRight The type of the RHS of the expression. |
| * @param[in] lhs The LHS of the expression. |
| * @param[in] rhs The RHS of the expression. |
| * @return The resulting AST node. |
| */ |
| template <typename TLeft, typename TRight> |
| inline BinaryExpression<TLeft, TRight> operator==(TLeft &&lhs, TRight &&rhs) |
| { |
| return BinaryExpression<TLeft, TRight>{std::forward<TLeft>(lhs), std::forward<TRight>(rhs), BinaryOp::Equal}; |
| } |
| |
| /** Represents the expression: `\p lhs < \p rhs`. |
| * |
| * @tparam TLeft The type of the LHS of the expression. |
| * @tparam TRight The type of the RHS of the expression. |
| * @param[in] lhs The LHS of the expression. |
| * @param[in] rhs The RHS of the expression. |
| * @return The resulting AST node. |
| */ |
| template <typename TLeft, typename TRight> |
| inline BinaryExpression<TLeft, TRight> operator<(TLeft &&lhs, TRight &&rhs) |
| { |
| return BinaryExpression<TLeft, TRight>{std::forward<TLeft>(lhs), std::forward<TRight>(rhs), BinaryOp::Less}; |
| } |
| |
| /** Represents the expression: `\p lhs <= \p rhs`. |
| * |
| * @tparam TLeft The type of the LHS of the expression. |
| * @tparam TRight The type of the RHS of the expression. |
| * @param[in] lhs The LHS of the expression. |
| * @param[in] rhs The RHS of the expression. |
| * @return The resulting AST node. |
| */ |
| template <typename TLeft, typename TRight> |
| inline BinaryExpression<TLeft, TRight> operator<=(TLeft &&lhs, TRight &&rhs) |
| { |
| return BinaryExpression<TLeft, TRight>{std::forward<TLeft>(lhs), std::forward<TRight>(rhs), BinaryOp::LessEqual}; |
| } |
| |
| /** Represents the expression: `\p lhs > \p rhs`. |
| * |
| * @tparam TLeft The type of the LHS of the expression. |
| * @tparam TRight The type of the RHS of the expression. |
| * @param[in] lhs The LHS of the expression. |
| * @param[in] rhs The RHS of the expression. |
| * @return The resulting AST node. |
| */ |
| template <typename TLeft, typename TRight> |
| inline BinaryExpression<TLeft, TRight> operator>(TLeft &&lhs, TRight &&rhs) |
| { |
| return BinaryExpression<TLeft, TRight>{std::forward<TLeft>(lhs), std::forward<TRight>(rhs), BinaryOp::Greater}; |
| } |
| |
| /** Represents the expression: `\p lhs >= \p rhs`. |
| * |
| * @tparam TLeft The type of the LHS of the expression. |
| * @tparam TRight The type of the RHS of the expression. |
| * @param[in] lhs The LHS of the expression. |
| * @param[in] rhs The RHS of the expression. |
| * @return The resulting AST node. |
| */ |
| template <typename TLeft, typename TRight> |
| inline BinaryExpression<TLeft, TRight> operator>=(TLeft &&lhs, TRight &&rhs) |
| { |
| return BinaryExpression<TLeft, TRight>{std::forward<TLeft>(lhs), std::forward<TRight>(rhs), BinaryOp::GreaterEqual}; |
| } |
| |
| /** Represents the expression: `\p lhs ^ \p rhs`. |
| * |
| * @tparam TLeft The type of the LHS of the expression. |
| * @tparam TRight The type of the RHS of the expression. |
| * @param[in] lhs The LHS of the expression. |
| * @param[in] rhs The RHS of the expression. |
| * @return The resulting AST node. |
| */ |
| template <typename TLeft, typename TRight> |
| inline BinaryExpression<TLeft, TRight> operator^(TLeft &&lhs, TRight &&rhs) |
| { |
| return BinaryExpression<TLeft, TRight>{std::forward<TLeft>(lhs), std::forward<TRight>(rhs), BinaryOp::BitwiseXOR}; |
| } |
| |
| /** Represents the expression: `\p lhs && \p rhs`. |
| * |
| * @tparam TLeft The type of the LHS of the expression. |
| * @tparam TRight The type of the RHS of the expression. |
| * @param[in] lhs The LHS of the expression. |
| * @param[in] rhs The RHS of the expression. |
| * @return The resulting AST node. |
| */ |
| template <typename TLeft, typename TRight> |
| inline BinaryExpression<TLeft, TRight> logical_and(TLeft &&lhs, TRight &&rhs) |
| { |
| return BinaryExpression<TLeft, TRight>{std::forward<TLeft>(lhs), std::forward<TRight>(rhs), BinaryOp::LogicalAnd}; |
| } |
| |
| /** Represents the expression: `\p lhs && \p rhs`. |
| * |
| * @tparam TLeft The type of the LHS of the expression. |
| * @tparam TRight The type of the RHS of the expression. |
| * @param[in] lhs The LHS of the expression. |
| * @param[in] rhs The RHS of the expression. |
| * @return The resulting AST node. |
| */ |
| template <typename TLeft, typename TRight, typename... TOps> |
| inline BinaryExpression<BinaryExpression<TLeft, TRight>, TOps...> logical_and(TLeft &&lhs, TRight &&rhs, TOps &&...ops) |
| { |
| return logical_and( |
| BinaryExpression<TLeft, TRight>{std::forward<TLeft>(lhs), std::forward<TRight>(rhs), BinaryOp::LogicalAnd}, |
| std::forward<TOps>(ops)...); |
| } |
| |
| /** Represents the expression: `\p lhs || \p rhs`. |
| * |
| * @tparam TLeft The type of the LHS of the expression. |
| * @tparam TRight The type of the RHS of the expression. |
| * @param[in] lhs The LHS of the expression. |
| * @param[in] rhs The RHS of the expression. |
| * @return The resulting AST node. |
| */ |
| template <typename TLeft, typename TRight> |
| inline BinaryExpression<TLeft, TRight> logical_or(TLeft &&lhs, TRight &&rhs) |
| { |
| return BinaryExpression<TLeft, TRight>{std::forward<TLeft>(lhs), std::forward<TRight>(rhs), BinaryOp::LogicalOr}; |
| } |
| |
| /** Represents the expression: `\p lhs || \p rhs`. |
| * |
| * @tparam TLeft The type of the LHS of the expression. |
| * @tparam TRight The type of the RHS of the expression. |
| * @param[in] lhs The LHS of the expression. |
| * @param[in] rhs The RHS of the expression. |
| * @return The resulting AST node. |
| */ |
| template <typename TLeft, typename TRight, typename... TOps> |
| inline BinaryExpression<BinaryExpression<TLeft, TRight>, TOps...> logical_or(TLeft &&lhs, TRight &&rhs, TOps &&...ops) |
| { |
| return logical_or( |
| BinaryExpression<TLeft, TRight>{std::forward<TLeft>(lhs), std::forward<TRight>(rhs), BinaryOp::LogicalOr}, |
| std::forward<TOps>(ops)...); |
| } |
| |
| // ================================================== |
| // Unary elementwise functions |
| // ================================================== |
| |
| /** AST node for unary elementwise functions. |
| * |
| * Note that \p TSrc must be an operand. |
| * |
| * @tparam TSrc The type of the argument to the function. |
| */ |
| template <typename TSrc, typename = ::std::enable_if<can_be_operand<TSrc>::value>> |
| struct UnaryElementwiseFunction |
| { |
| TSrc src; |
| UnaryFunction opcode; |
| }; |
| |
| template <typename TLeft> |
| struct can_be_operand<UnaryElementwiseFunction<TLeft>> : ::std::true_type |
| { |
| }; |
| |
| /** Represents the expression: `exp(\p src)`. |
| * |
| * @tparam TSrc The type of the argument. |
| * @param[in] src The argument. |
| * @return The resulting AST node. |
| */ |
| template <typename TSrc> |
| UnaryElementwiseFunction<TSrc> exp(TSrc &&src) |
| { |
| return UnaryElementwiseFunction<TSrc>{std::forward<TSrc>(src), UnaryFunction::Exp}; |
| } |
| |
| /** Represents the expression: `tanh(\p src)`. |
| * |
| * @tparam TSrc The type of the argument. |
| * @param[in] src The argument. |
| * @return The resulting AST node. |
| */ |
| template <typename TSrc> |
| UnaryElementwiseFunction<TSrc> tanh(TSrc &&src) |
| { |
| return UnaryElementwiseFunction<TSrc>{std::forward<TSrc>(src), UnaryFunction::Tanh}; |
| } |
| |
| /** Represents the expression: `sqrt(\p src)`. |
| * |
| * @tparam TSrc The type of the argument. |
| * @param[in] src The argument. |
| * @return The resulting AST node. |
| */ |
| template <typename TSrc> |
| UnaryElementwiseFunction<TSrc> sqrt(TSrc &&src) |
| { |
| return UnaryElementwiseFunction<TSrc>{std::forward<TSrc>(src), UnaryFunction::Sqrt}; |
| } |
| |
| /** Represents the expression: `erf(\p src)`. |
| * |
| * @tparam TSrc The type of the argument. |
| * @param[in] src The argument. |
| * @return The resulting AST node. |
| */ |
| template <typename TSrc> |
| UnaryElementwiseFunction<TSrc> erf(TSrc &&src) |
| { |
| return UnaryElementwiseFunction<TSrc>{std::forward<TSrc>(src), UnaryFunction::Erf}; |
| } |
| |
| /** Represents the expression: `fabs(\p src)`. |
| * |
| * @tparam TSrc The type of the argument. |
| * @param[in] src The argument. |
| * @return The resulting AST node. |
| */ |
| template <typename TSrc> |
| UnaryElementwiseFunction<TSrc> fabs(TSrc &&src) |
| { |
| return UnaryElementwiseFunction<TSrc>{std::forward<TSrc>(src), UnaryFunction::Fabs}; |
| } |
| |
| /** Represents the expression: `log(\p src)`. |
| * |
| * @tparam TSrc The type of the argument. |
| * @param[in] src The argument. |
| * @return The resulting AST node. |
| */ |
| template <typename TSrc> |
| UnaryElementwiseFunction<TSrc> log(TSrc &&src) |
| { |
| return UnaryElementwiseFunction<TSrc>{std::forward<TSrc>(src), UnaryFunction::Log}; |
| } |
| |
| /** Represents the expression: `round(\p src)`. |
| * |
| * @tparam TSrc The type of the argument. |
| * @param[in] src The argument. |
| * @return The resulting AST node. |
| */ |
| template <typename TSrc> |
| UnaryElementwiseFunction<TSrc> round(TSrc &&src) |
| { |
| return UnaryElementwiseFunction<TSrc>{std::forward<TSrc>(src), UnaryFunction::Round}; |
| } |
| |
| /** Represents the expression: `sizeof(\p src)`. |
| * |
| * @tparam TSrc The type of the argument. |
| * @param[in] src The argument. |
| * @return The resulting AST node. |
| */ |
| template <typename TSrc> |
| UnaryElementwiseFunction<TSrc> sizeOf(TSrc &&src) |
| { |
| return UnaryElementwiseFunction<TSrc>{std::forward<TSrc>(src), UnaryFunction::SizeOf}; |
| } |
| |
| // ================================================== |
| // Binary elementwise functions |
| // ================================================== |
| |
| /** AST node for binary elementwise functions. |
| * |
| * Note that both \p TFirst and \p TSecond must be operands. |
| * |
| * @tparam TFirst The type of the left argument of the function. |
| * @tparam TSecond The type of the right argument of the function. |
| */ |
| template <typename TFirst, |
| typename TSecond, |
| typename = ::std::enable_if<can_be_operand<TFirst>::value && can_be_operand<TSecond>::value>> |
| struct BinaryElementwiseFunction |
| { |
| TFirst first; |
| TSecond second; |
| BinaryFunction opcode; |
| }; |
| |
| template <typename TFirst, typename TSecond> |
| struct can_be_operand<BinaryElementwiseFunction<TFirst, TSecond>> : ::std::true_type |
| { |
| }; |
| |
| /** Represents the function call: `max(\p first, \p second)`. |
| * |
| * @tparam TFirst The type of the first argument. |
| * @tparam TSecond The type of the second argument. |
| * @param[in] first The first argument. |
| * @param[in] second The second argument. |
| * @return The resulting AST node. |
| */ |
| template <typename TFirst, typename TSecond> |
| BinaryElementwiseFunction<TFirst, TSecond> max(TFirst &&first, TSecond &&second) |
| { |
| return BinaryElementwiseFunction<TFirst, TSecond>{std::forward<TFirst>(first), std::forward<TSecond>(second), |
| BinaryFunction::Max}; |
| } |
| |
| /** Represents the function call: `min(\p first, \p second)`. |
| * |
| * @tparam TFirst The type of the first argument. |
| * @tparam TSecond The type of the second argument. |
| * @param[in] first The first argument. |
| * @param[in] second The second argument. |
| * @return The resulting AST node. |
| */ |
| template <typename TFirst, typename TSecond> |
| BinaryElementwiseFunction<TFirst, TSecond> min(TFirst &&first, TSecond &&second) |
| { |
| return BinaryElementwiseFunction<TFirst, TSecond>{std::forward<TFirst>(first), std::forward<TSecond>(second), |
| BinaryFunction::Min}; |
| } |
| |
| // ================================================== |
| // Ternary elementwise functions |
| // ================================================== |
| |
| /** AST node for ternary elementwise functions. |
| * |
| * Note that \p TFirst, \p TSecond, and \p TThird all must be operands. |
| * |
| * @tparam TFirst The type of the first argument to the function. |
| * @tparam TSecond The type of the second argument to the function. |
| * @tparam TThird The type of the third argument to the function. |
| */ |
| template <typename TFirst, |
| typename TSecond, |
| typename TThird, |
| typename = ::std::enable_if<can_be_operand<TFirst>::value && can_be_operand<TSecond>::value && |
| can_be_operand<TThird>::value>> |
| struct TernaryElementwiseFunction |
| { |
| TFirst first; |
| TSecond second; |
| TThird third; |
| TernaryFunction opcode; |
| }; |
| |
| template <typename TFirst, typename TSecond, typename TThird> |
| struct can_be_operand<TernaryElementwiseFunction<TFirst, TSecond, TThird>> : ::std::true_type |
| { |
| }; |
| |
| /** Represents the function call: `select(\p first, \p second, \p third)`. |
| * |
| * @tparam TFirst The type of the first argument. |
| * @tparam TSecond The type of the second argument. |
| * @tparam TThird The type of the third argument. |
| * @param[in] first The first argument. |
| * @param[in] second The second argument. |
| * @param[in] third The third argument. |
| * @return The resulting AST node. |
| */ |
| template <typename TFirst, typename TSecond, typename TThird> |
| TernaryElementwiseFunction<TFirst, TSecond, TThird> select(TFirst &&first, TSecond &&second, TThird &&third) |
| { |
| return TernaryElementwiseFunction<TFirst, TSecond, TThird>{std::forward<TFirst>(first), |
| std::forward<TSecond>(second), |
| std::forward<TThird>(third), TernaryFunction::Select}; |
| } |
| |
| /** Helper class used to extend a KernelWriter with additional functionality |
| * in order to make writing easier. |
| * |
| * This extension automatically handles creation of temporary variables, and |
| * allows nested function calls and operations. |
| * |
| * @tparam TWriter The type of KernelWriter to be overloaded. This must inherit from KernelWriter. |
| */ |
| template <class TWriter, typename = std::enable_if<std::is_base_of<KernelWriter, TWriter>::value>> |
| class KernelWriterHelper : public TWriter |
| { |
| public: |
| using TWriter::TWriter; |
| |
| // ================================================== |
| // If-statements |
| // ================================================== |
| |
| // Un-hide original implementation, in case the original implementation is required. |
| using TWriter::op_if; |
| |
| /** Represents the if-statement: `if(\p cond) { \p body }`. |
| * |
| * The BinaryExpression is unpacked and its components are forwarded to |
| * the underlying KernelWriter's implementation. |
| * |
| * @param[in] cond The BinaryExpression representing the condition. |
| * @param[in] body The body of the if-statement. |
| */ |
| KernelWriterHelper<TWriter> &op_if(const BinaryExpression<TileOperand &, TileOperand &> &cond, |
| const std::function<void()> &body) |
| { |
| TWriter::op_if(cond.lhs, cond.opcode, cond.rhs, body); |
| return *this; |
| } |
| |
| /** Represents the if-statement: `if(\p cond) { \p body }`. |
| * |
| * The BinaryExpression is unpacked and its components are forwarded to |
| * the underlying KernelWriter's implementation. |
| * |
| * @param[in] cond The BinaryExpression representing the condition. |
| * @param[in] body The body of the if-statement. |
| */ |
| template <typename TRight> |
| KernelWriterHelper<TWriter> &op_if(const BinaryExpression<TileOperand &, TRight> &cond, |
| const std::function<void()> &body) |
| { |
| auto &tmp1 = declare_temp_tile(cond.lhs.tile_info()); |
| op_assign(tmp1, cond.rhs); |
| TWriter::op_if(cond.lhs, cond.opcode, tmp1, body); |
| return *this; |
| } |
| |
| /** Represents the if-statement: `if(\p cond) { \p body }`. |
| * |
| * The BinaryExpression is unpacked and its components are forwarded to |
| * the underlying KernelWriter's implementation. |
| * |
| * @param[in] cond The BinaryExpression representing the condition. |
| * @param[in] body The body of the if-statement. |
| */ |
| template <typename TLeft> |
| KernelWriterHelper<TWriter> &op_if(const BinaryExpression<TLeft, TileOperand &> &cond, |
| const std::function<void()> &body) |
| { |
| auto &tmp1 = declare_temp_tile(cond.rhs.tile_info()); |
| op_assign(tmp1, cond.lhs); |
| TWriter::op_if(tmp1, cond.opcode, cond.rhs, body); |
| return *this; |
| } |
| |
| // Un-hide original implementation, in case the original implementation is required. |
| using TWriter::op_else_if; |
| |
| /** Represents the else-if-statement: `else if(\p cond) { \p body }`. |
| * |
| * The BinaryExpression is unpacked and its components are forwarded to |
| * the underlying KernelWriter's implementation. |
| * |
| * @param[in] cond The BinaryExpression representing the condition. |
| * @param[in] body The body of the else-if-statement. |
| */ |
| KernelWriterHelper<TWriter> &op_else_if(const BinaryExpression<TileOperand &, TileOperand &> &cond, |
| const std::function<void()> &body) |
| { |
| TWriter::op_else_if(cond.lhs, cond.opcode, cond.rhs, body); |
| return *this; |
| } |
| |
| /** Represents the else-if-statement: `else if(\p cond) { \p body }`. |
| * |
| * The BinaryExpression is unpacked and its components are forwarded to |
| * the underlying KernelWriter's implementation. |
| * |
| * @param[in] cond The BinaryExpression representing the condition. |
| * @param[in] body The body of the else-if-statement. |
| */ |
| template <typename TRight> |
| KernelWriterHelper<TWriter> &op_else_if(const BinaryExpression<TileOperand &, TRight> &cond, |
| const std::function<void()> &body) |
| { |
| auto &tmp1 = declare_temp_tile(cond.lhs.tile_info()); |
| op_assign(tmp1, cond.rhs); |
| TWriter::op_else_if(cond.lhs, cond.opcode, tmp1, body); |
| return *this; |
| } |
| |
| /** Represents the else-if-statement: `else if(\p cond) { \p body }`. |
| * |
| * The BinaryExpression is unpacked and its components are forwarded to |
| * the underlying KernelWriter's implementation. |
| * |
| * @param[in] cond The BinaryExpression representing the condition. |
| * @param[in] body The body of the else-if-statement. |
| */ |
| template <typename TLeft> |
| KernelWriterHelper<TWriter> &op_else_if(const BinaryExpression<TLeft, TileOperand &> &cond, |
| const std::function<void()> &body) |
| { |
| auto &tmp1 = declare_temp_tile(cond.rhs.tile_info()); |
| op_assign(tmp1, cond.lhs); |
| TWriter::op_else_if(tmp1, cond.opcode, cond.rhs, body); |
| return *this; |
| } |
| |
| // ================================================== |
| // For-loops |
| // ================================================== |
| |
| // Un-hide original implementation, in case the original implementation is required. |
| using TWriter::op_for_loop; |
| |
| /** Represents the for-loop: `for(;\p cond; \p updater) { \p body }`. |
| * |
| * The BinaryExpression for the condition and the Assignment |
| * for the updater are unpacked and their components are forwarded to |
| * the underlying KernelWriter's implementation. |
| * |
| * @param[in] cond The BinaryExpression representing the condition. |
| * @param[in] updater The Assignment representing the updater. |
| * @param[in] body The body of the for-loop. |
| */ |
| void op_for_loop(const BinaryExpression<TileOperand &, TileOperand &> &cond, |
| const Assignment<TileOperand &, TileOperand &> &updater, |
| const std::function<void()> &body) |
| { |
| TWriter::op_for_loop(cond.lhs, cond.opcode, cond.rhs, updater.lhs, updater.opcode, updater.rhs, body); |
| } |
| |
| // ================================================== |
| // Unary expressions |
| // ================================================== |
| |
| // Un-hide original implementation, in case the original implementation is required. |
| using TWriter::op_assign; |
| |
| /** Represents the assignment: `\p dst = \p exp`. |
| * |
| * The UnaryExpression is unpacked and its components are forwarded to |
| * the underlying KernelWriter's implementation. |
| * |
| * @param[in] dst The tile which is assigned to. |
| * @param[in] exp The UnaryExpression representing the expression to be evaluated and assigned. |
| */ |
| void op_assign(const TileOperand &dst, const UnaryExpression<TileOperand &> &exp) |
| { |
| TWriter::op_unary_expression(dst, exp.opcode, exp.src); |
| } |
| |
| // ================================================== |
| // Binary expressions |
| // ================================================== |
| |
| /** Represents the assignment: `\p dst = \p exp`. |
| * |
| * The BinaryExpression is unpacked and its components are forwarded to |
| * the underlying KernelWriter's implementation. |
| * |
| * @param[in] dst The tile which is assigned to. |
| * @param[in] exp The BinaryExpression representing the expression to be evaluated and assigned. |
| */ |
| void op_assign(const TileOperand &dst, const BinaryExpression<TileOperand &, TileOperand &> &exp) |
| { |
| TWriter::op_binary_expression(dst, exp.lhs, exp.opcode, exp.rhs); |
| } |
| |
| /** Represents the assignment: `\p dst = \p exp`. |
| * |
| * The BinaryExpression is unpacked and its components are forwarded to |
| * the underlying KernelWriter's implementation. |
| * |
| * @param[in] dst The tile which is assigned to. |
| * @param[in] exp The BinaryExpression representing the expression to be evaluated and assigned. |
| */ |
| template <typename TRight> |
| void op_assign(const TileOperand &dst, const BinaryExpression<TileOperand &, TRight> &exp) |
| { |
| std::cout << "Beginning assignment!" << std::endl; |
| auto &tmp1 = declare_temp_tile(dst.tile_info()); |
| op_assign(tmp1, exp.rhs); |
| TWriter::op_binary_expression(dst, exp.lhs, exp.opcode, tmp1); |
| } |
| |
| /** Represents the assignment: `\p dst = \p exp`. |
| * |
| * The BinaryExpression is unpacked and its components are forwarded to |
| * the underlying KernelWriter's implementation. |
| * |
| * @param[in] dst The tile which is assigned to. |
| * @param[in] exp The BinaryExpression representing the expression to be evaluated and assigned. |
| */ |
| template <typename TLeft> |
| void op_assign(const TileOperand &dst, const BinaryExpression<TLeft, TileOperand &> &exp) |
| { |
| std::cout << "Beginning assignment!" << std::endl; |
| auto &tmp1 = declare_temp_tile(dst.tile_info()); |
| op_assign(tmp1, exp.lhs); |
| TWriter::op_binary_expression(dst, tmp1, exp.opcode, exp.rhs); |
| } |
| |
| /** Represents the assignment: `\p dst = \p exp`. |
| * |
| * The BinaryExpression is unpacked and its components are forwarded to |
| * the underlying KernelWriter's implementation. |
| * |
| * @param[in] dst The tile which is assigned to. |
| * @param[in] exp The BinaryExpression representing the expression to be evaluated and assigned. |
| */ |
| template <typename TLeft, typename TRight> |
| void op_assign(const TileOperand &dst, const BinaryExpression<TLeft, TRight> &exp) |
| { |
| auto &tmp1 = declare_temp_tile(dst.tile_info()); |
| auto &tmp2 = declare_temp_tile(dst.tile_info()); |
| op_assign(tmp1, exp.lhs); |
| op_assign(tmp2, exp.rhs); |
| TWriter::op_binary_expression(dst, tmp1, exp.opcode, tmp2); |
| } |
| |
| // ================================================== |
| // Unary elementwise functions |
| // ================================================== |
| |
| /** Represents the assignment: `\p dst = \p exp`. |
| * |
| * The UnaryElementwiseFunction is unpacked and its components are forwarded to |
| * the underlying KernelWriter's implementation. |
| * |
| * @param[in] dst The tile which is assigned to. |
| * @param[in] exp The UnaryElementwiseFunction representing the expression to be evaluated and assigned. |
| */ |
| void op_assign(const TileOperand &dst, const UnaryElementwiseFunction<TileOperand &> &exp) |
| { |
| TWriter::op_unary_elementwise_function(dst, exp.opcode, exp.src); |
| } |
| |
| /** Represents the assignment: `\p dst = \p exp`. |
| * |
| * The UnaryElementwiseFunction is unpacked and its components are forwarded to |
| * the underlying KernelWriter's implementation. |
| * |
| * @param[in] dst The tile which is assigned to. |
| * @param[in] exp The UnaryElementwiseFunction representing the expression to be evaluated and assigned. |
| */ |
| template <typename TArg> |
| void op_assign(const TileOperand &dst, const UnaryElementwiseFunction<TArg> &exp) |
| { |
| auto &tmp1 = declare_temp_tile(dst.tile_info()); |
| op_assign(tmp1, exp.lhs); |
| TWriter::op_unary_elementwise_function(dst, exp.opcode, tmp1); |
| } |
| |
| // ================================================== |
| // Binary elementwise functions |
| // ================================================== |
| |
| /** Represents the assignment: `\p dst = \p exp`. |
| * |
| * The BinaryElementwiseFunction is unpacked and its components are forwarded to |
| * the underlying KernelWriter's implementation. |
| * |
| * @param[in] dst The tile which is assigned to. |
| * @param[in] exp The BinaryElementwiseFunction representing the expression to be evaluated and assigned. |
| */ |
| void op_assign(const TileOperand &dst, const BinaryElementwiseFunction<TileOperand &, TileOperand &> &exp) |
| { |
| TWriter::op_binary_elementwise_function(dst, exp.opcode, exp.first, exp.second); |
| } |
| |
| /** Represents the assignment: `\p dst = \p exp`. |
| * |
| * The BinaryElementwiseFunction is unpacked and its components are forwarded to |
| * the underlying KernelWriter's implementation. |
| * |
| * @param[in] dst The tile which is assigned to. |
| * @param[in] exp The BinaryElementwiseFunction representing the expression to be evaluated and assigned. |
| */ |
| template <typename TRight> |
| void op_assign(const TileOperand &dst, const BinaryElementwiseFunction<TileOperand &, TRight> &exp) |
| { |
| auto &tmp1 = declare_temp_tile(dst.tile_info()); |
| op_assign(tmp1, exp.second); |
| TWriter::op_binary_elementwise_function(dst, exp.opcode, exp.first, tmp1); |
| } |
| |
| /** Represents the assignment: `\p dst = \p exp`. |
| * |
| * The BinaryElementwiseFunction is unpacked and its components are forwarded to |
| * the underlying KernelWriter's implementation. |
| * |
| * @param[in] dst The tile which is assigned to. |
| * @param[in] exp The BinaryElementwiseFunction representing the expression to be evaluated and assigned. |
| */ |
| template <typename TLeft> |
| void op_assign(const TileOperand &dst, const BinaryElementwiseFunction<TLeft, TileOperand &> &exp) |
| { |
| auto &tmp1 = declare_temp_tile(dst.tile_info()); |
| op_assign(tmp1, exp.first); |
| TWriter::op_binary_elementwise_function(dst, exp.opcode, tmp1, exp.second); |
| } |
| |
| /** Represents the assignment: `\p dst = \p exp`. |
| * |
| * The BinaryElementwiseFunction is unpacked and its components are forwarded to |
| * the underlying KernelWriter's implementation. |
| * |
| * @param[in] dst The tile which is assigned to. |
| * @param[in] exp The BinaryElementwiseFunction representing the expression to be evaluated and assigned. |
| */ |
| template <typename TLeft, typename TRight> |
| void op_assign(const TileOperand &dst, const BinaryElementwiseFunction<TLeft, TRight> &exp) |
| { |
| auto &tmp1 = declare_temp_tile(dst.tile_info()); |
| auto &tmp2 = declare_temp_tile(dst.tile_info()); |
| op_assign(tmp1, exp.first); |
| op_assign(tmp2, exp.second); |
| TWriter::op_binary_elementwise_function(dst, exp.opcode, tmp1, tmp2); |
| } |
| |
| // ================================================== |
| // Ternary elementwise functions |
| // ================================================== |
| |
| /** Represents the assignment: `\p dst = \p exp`. |
| * |
| * The TernaryElementwiseFunction is unpacked and its components are forwarded to |
| * the underlying KernelWriter's implementation. |
| * |
| * @param[in] dst The tile which is assigned to. |
| * @param[in] exp The TernaryElementwiseFunction representing the expression to be evaluated and assigned. |
| */ |
| void op_assign(const TileOperand &dst, |
| const TernaryElementwiseFunction<TileOperand &, TileOperand &, TileOperand &> &exp) |
| { |
| TWriter::op_ternary_elementwise_function(dst, exp.opcode, exp.first, exp.second, exp.third); |
| } |
| |
| /** Represents the assignment: `\p dst = \p exp`. |
| * |
| * The TernaryElementwiseFunction is unpacked and its components are forwarded to |
| * the underlying KernelWriter's implementation. |
| * |
| * @param[in] dst The tile which is assigned to. |
| * @param[in] exp The TernaryElementwiseFunction representing the expression to be evaluated and assigned. |
| */ |
| template <typename TFirst> |
| void op_assign(const TileOperand &dst, const TernaryElementwiseFunction<TFirst, TileOperand &, TileOperand &> &exp) |
| { |
| auto &tmp1 = declare_temp_tile(dst.tile_info()); |
| op_assign(tmp1, exp.first); |
| TWriter::op_ternary_elementwise_function(dst, exp.opcode, tmp1, exp.second, exp.third); |
| } |
| |
| /** Represents the assignment: `\p dst = \p exp`. |
| * |
| * The TernaryElementwiseFunction is unpacked and its components are forwarded to |
| * the underlying KernelWriter's implementation. |
| * |
| * @param[in] dst The tile which is assigned to. |
| * @param[in] exp The TernaryElementwiseFunction representing the expression to be evaluated and assigned. |
| */ |
| template <typename TSecond> |
| void op_assign(const TileOperand &dst, const TernaryElementwiseFunction<TileOperand &, TSecond, TileOperand &> &exp) |
| { |
| auto &tmp1 = declare_temp_tile(dst.tile_info()); |
| op_assign(tmp1, exp.second); |
| TWriter::op_ternary_elementwise_function(dst, exp.opcode, exp.first, tmp1, exp.third); |
| } |
| |
| /** Represents the assignment: `\p dst = \p exp`. |
| * |
| * The TernaryElementwiseFunction is unpacked and its components are forwarded to |
| * the underlying KernelWriter's implementation. |
| * |
| * @param[in] dst The tile which is assigned to. |
| * @param[in] exp The TernaryElementwiseFunction representing the expression to be evaluated and assigned. |
| */ |
| template <typename TThird> |
| void op_assign(const TileOperand &dst, const TernaryElementwiseFunction<TileOperand &, TileOperand &, TThird> &exp) |
| { |
| auto &tmp1 = declare_temp_tile(dst.tile_info()); |
| op_assign(tmp1, exp.third); |
| TWriter::op_ternary_elementwise_function(dst, exp.opcode, exp.first, exp.second, tmp1); |
| } |
| |
| /** Represents the assignment: `\p dst = \p exp`. |
| * |
| * The TernaryElementwiseFunction is unpacked and its components are forwarded to |
| * the underlying KernelWriter's implementation. |
| * |
| * @param[in] dst The tile which is assigned to. |
| * @param[in] exp The TernaryElementwiseFunction representing the expression to be evaluated and assigned. |
| */ |
| template <typename TFirst, typename TSecond> |
| void op_assign(const TileOperand &dst, const TernaryElementwiseFunction<TFirst, TSecond, TileOperand &> &exp) |
| { |
| auto &tmp1 = declare_temp_tile(dst.tile_info()); |
| auto &tmp2 = declare_temp_tile(dst.tile_info()); |
| op_assign(tmp1, exp.first); |
| op_assign(tmp2, exp.second); |
| TWriter::op_ternary_elementwise_function(dst, exp.opcode, tmp1, tmp2, exp.third); |
| } |
| |
| /** Represents the assignment: `\p dst = \p exp`. |
| * |
| * The TernaryElementwiseFunction is unpacked and its components are forwarded to |
| * the underlying KernelWriter's implementation. |
| * |
| * @param[in] dst The tile which is assigned to. |
| * @param[in] exp The TernaryElementwiseFunction representing the expression to be evaluated and assigned. |
| */ |
| template <typename TFirst, typename TThird> |
| void op_assign(const TileOperand &dst, const TernaryElementwiseFunction<TFirst, TileOperand &, TThird> &exp) |
| { |
| auto &tmp1 = declare_temp_tile(dst.tile_info()); |
| auto &tmp2 = declare_temp_tile(dst.tile_info()); |
| op_assign(tmp1, exp.first); |
| op_assign(tmp2, exp.third); |
| TWriter::op_ternary_elementwise_function(dst, exp.opcode, tmp1, exp.second, tmp2); |
| } |
| |
| /** Represents the assignment: `\p dst = \p exp`. |
| * |
| * The TernaryElementwiseFunction is unpacked and its components are forwarded to |
| * the underlying KernelWriter's implementation. |
| * |
| * @param[in] dst The tile which is assigned to. |
| * @param[in] exp The TernaryElementwiseFunction representing the expression to be evaluated and assigned. |
| */ |
| template <typename TSecond, typename TThird> |
| void op_assign(const TileOperand &dst, const TernaryElementwiseFunction<TileOperand &, TSecond, TThird> &exp) |
| { |
| auto &tmp1 = declare_temp_tile(dst.tile_info()); |
| auto &tmp2 = declare_temp_tile(dst.tile_info()); |
| op_assign(tmp1, exp.second); |
| op_assign(tmp2, exp.third); |
| TWriter::op_ternary_elementwise_function(dst, exp.opcode, exp.first, tmp1, tmp2); |
| } |
| |
| /** Represents the assignment: `\p dst = \p exp`. |
| * |
| * The TernaryElementwiseFunction is unpacked and its components are forwarded to |
| * the underlying KernelWriter's implementation. |
| * |
| * @param[in] dst The tile which is assigned to. |
| * @param[in] exp The TernaryElementwiseFunction representing the expression to be evaluated and assigned. |
| */ |
| template <typename TFirst, typename TSecond, typename TThird> |
| void op_assign(const TileOperand &dst, const TernaryElementwiseFunction<TFirst, TSecond, TThird> &exp) |
| { |
| auto &tmp1 = declare_temp_tile(dst.tile_info(), dst.tile_info(), dst.tile_info()); |
| auto &tmp2 = declare_temp_tile(dst.tile_info()); |
| auto &tmp3 = declare_temp_tile(dst.tile_info()); |
| op_assign(tmp1, exp.first); |
| op_assign(tmp2, exp.second); |
| op_assign(tmp3, exp.third); |
| TWriter::op_ternary_elementwise_function(dst, exp.opcode, tmp1, tmp2, tmp3); |
| } |
| |
| // ================================================== |
| // Assignments |
| // ================================================== |
| |
| /** Represents the assignment: `\p lhs += \p rhs` or `\p lhs -= \p rhs`. |
| * |
| * The Assignment is unpacked and its components are forwarded to |
| * the underlying KernelWriter's implementation. |
| * |
| * @param[in] exp The Assignment representing the expression to be evaluated. |
| */ |
| void op_assign(const Assignment<TileOperand &, TileOperand &> &exp) |
| { |
| if (exp.opcode == AssignmentOp::Increment) |
| { |
| TWriter::op_binary_expression(exp.lhs, exp.lhs, BinaryOp::Add, exp.rhs); |
| } |
| else if (exp.opcode == AssignmentOp::Decrement) |
| { |
| TWriter::op_binary_expression(exp.lhs, exp.lhs, BinaryOp::Sub, exp.rhs); |
| } |
| } |
| |
| /** Represents the assignment: `\p lhs += \p rhs` or `\p lhs -= \p rhs`. |
| * |
| * The Assignment is unpacked and its components are forwarded to |
| * the underlying KernelWriter's implementation. |
| * |
| * @tparam TRight The type of the RHS of the assignment. |
| * @param[in] exp The Assignment representing the expression to be evaluated. |
| */ |
| template <typename TRight> |
| void op_assign(const Assignment<TileOperand &, TRight> &exp) |
| { |
| auto &tmp1 = declare_temp_tile(exp.lhs.tile_info()); |
| op_assign(tmp1, exp.rhs); |
| op_assign(Assignment<TileOperand &, TileOperand &>{exp.lhs, tmp1, exp.opcode}); |
| } |
| |
| private: |
| unsigned int temp_var_counter = 0; |
| |
| /** Return the current counter value, then increment it. |
| * |
| * @return The current counter value. |
| */ |
| int next_ctr() |
| { |
| return temp_var_counter++; |
| } |
| |
| /** Gets the next temporary variable counter value, |
| * and returns a suitable temporary variable name. |
| * |
| * @return A temporary variable name. |
| */ |
| std::string next_tmp_var_name() |
| { |
| return "tmp_" + std::to_string(next_ctr()); |
| } |
| |
| /** Returns the argument. |
| * |
| * Used for recursion with the variadic function version of this function. |
| * |
| * @param[in] arg The TileInfo to return. |
| * @return The \p arg. |
| */ |
| TileInfo get_largest_size(const TileInfo &arg) |
| { |
| return arg; |
| } |
| |
| /** Returns a TileInfo object where the size in each dimension (width, height) is the largest |
| * of either TileInfo argument in the corresponding dimension. |
| * |
| * @tparam TOps Must be of TileInfo type. |
| * @param[in] first A TileInfo object. |
| * @param[in] second A TileInfo object. |
| * @param[in] ops A number of TileInfo objects. |
| * @return A TileInfo object which represents the largest shape in each dimension across the arguments. |
| */ |
| template <typename... TOps, typename = ::std::enable_if_t<std::is_same<TOps..., TileInfo>::value>> |
| TileInfo get_largest_size(const TileInfo &first, const TileInfo &second, const TOps &...ops) |
| { |
| TileInfo largest = {first.data_type(), std::max(first.width(), second.width()), |
| std::max(first.height(), second.height())}; |
| return get_largest_size(largest, ops...); |
| } |
| |
| /** Helper function to define a suitable TileOperand with appropriate TileInfo |
| * such that broadcasting is taken into account, based on the arguments provided. |
| * |
| * @tparam TArgs Must be of TileInfo type. |
| * @param[in] args A number of TileInfo which determine the shape of the TileOperand to declare. |
| * @return A newly created TileOperand. |
| */ |
| template <typename... TArgs, typename = ::std::enable_if_t<std::is_same<TArgs..., TileInfo>::value>> |
| TileOperand &declare_temp_tile(const TArgs &...args) |
| { |
| return TWriter::declare_tile(next_tmp_var_name().c_str(), get_largest_size(args...)); |
| } |
| }; |
| |
| } // namespace ckw |
| |
| #endif // CKW_INCLUDE_CKW_KERNELWRITERHELPER_H |