| // Copyright 2023 The Dawn & Tint Authors |
| // |
| // Redistribution and use in source and binary forms, with or without |
| // modification, are permitted provided that the following conditions are met: |
| // |
| // 1. Redistributions of source code must retain the above copyright notice, this |
| // list of conditions and the following disclaimer. |
| // |
| // 2. Redistributions in binary form must reproduce the above copyright notice, |
| // this list of conditions and the following disclaimer in the documentation |
| // and/or other materials provided with the distribution. |
| // |
| // 3. Neither the name of the copyright holder nor the names of its |
| // contributors may be used to endorse or promote products derived from |
| // this software without specific prior written permission. |
| // |
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| // AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| // DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE |
| // FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| // DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
| // SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
| // CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| // OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| #include "src/tint/lang/core/ir/transform/vectorize_scalar_matrix_constructors.h" |
| |
| #include <utility> |
| |
| #include "src/tint/lang/core/ir/builder.h" |
| #include "src/tint/lang/core/ir/module.h" |
| #include "src/tint/lang/core/ir/validator.h" |
| |
| using namespace tint::core::fluent_types; // NOLINT |
| using namespace tint::core::number_suffixes; // NOLINT |
| |
| namespace tint::core::ir::transform { |
| |
| namespace { |
| |
| /// PIMPL state for the transform. |
| struct State { |
| /// The IR module. |
| Module& ir; |
| |
| /// The IR builder. |
| Builder b{ir}; |
| |
| /// The type manager. |
| core::type::Manager& ty{ir.Types()}; |
| |
| /// Process the module. |
| void Process() { |
| // Find and replace matrix constructors that take scalar operands. |
| Vector<Construct*, 8> worklist; |
| for (auto inst : ir.Instructions()) { |
| if (auto* construct = inst->As<Construct>()) { |
| if (construct->Result(0)->Type()->As<type::Matrix>()) { |
| if (construct->Operands().Length() > 0 && |
| construct->Operands()[0]->Type()->Is<type::Scalar>()) { |
| b.InsertBefore(construct, [&] { // |
| ReplaceConstructor(construct); |
| }); |
| } |
| } |
| } |
| } |
| } |
| |
| /// Replace a matrix construct instruction. |
| /// @param construct the instruction to replace |
| void ReplaceConstructor(Construct* construct) { |
| auto* mat = construct->Result(0)->Type()->As<type::Matrix>(); |
| auto* col = mat->ColumnType(); |
| const auto& scalars = construct->Operands(); |
| |
| // Collect consecutive scalars into column vectors. |
| Vector<Value*, 4> columns; |
| for (uint32_t c = 0; c < mat->columns(); c++) { |
| Vector<Value*, 4> values; |
| for (uint32_t r = 0; r < col->Width(); r++) { |
| values.Push(scalars[c * col->Width() + r]); |
| } |
| columns.Push(b.Construct(col, std::move(values))->Result(0)); |
| } |
| |
| // Construct the matrix from the column vectors and replace the original instruction. |
| auto* replacement = b.Construct(mat, std::move(columns))->Result(0); |
| construct->Result(0)->ReplaceAllUsesWith(replacement); |
| construct->Destroy(); |
| } |
| }; |
| |
| } // namespace |
| |
| Result<SuccessType> VectorizeScalarMatrixConstructors(Module& ir) { |
| auto result = ValidateAndDumpIfNeeded(ir, "VectorizeScalarMatrixConstructors transform"); |
| if (result != Success) { |
| return result; |
| } |
| |
| State{ir}.Process(); |
| |
| return Success; |
| } |
| |
| } // namespace tint::core::ir::transform |