| //===- ScalableSize.h - Scalable vector size info ---------------*- C++ -*-===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // This file provides a struct that can be used to query the size of IR types |
| // which may be scalable vectors. It provides convenience operators so that |
| // it can be used in much the same way as a single scalar value. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef LLVM_SUPPORT_SCALABLESIZE_H |
| #define LLVM_SUPPORT_SCALABLESIZE_H |
| |
| namespace llvm { |
| |
| class ElementCount { |
| public: |
| unsigned Min; // Minimum number of vector elements. |
| bool Scalable; // If true, NumElements is a multiple of 'Min' determined |
| // at runtime rather than compile time. |
| |
| ElementCount(unsigned Min, bool Scalable) |
| : Min(Min), Scalable(Scalable) {} |
| |
| ElementCount operator*(unsigned RHS) { |
| return { Min * RHS, Scalable }; |
| } |
| ElementCount operator/(unsigned RHS) { |
| return { Min / RHS, Scalable }; |
| } |
| |
| bool operator==(const ElementCount& RHS) const { |
| return Min == RHS.Min && Scalable == RHS.Scalable; |
| } |
| }; |
| |
| } // end namespace llvm |
| |
| #endif // LLVM_SUPPORT_SCALABLESIZE_H |