| //===- Target/DirectX/PointerTypeAnalysis.h - PointerType analysis --------===// |
| // |
| // 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 |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // Analysis pass to assign types to opaque pointers. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef LLVM_TARGET_DIRECTX_POINTERTYPEANALYSIS_H |
| #define LLVM_TARGET_DIRECTX_POINTERTYPEANALYSIS_H |
| |
| #include "llvm/ADT/DenseMap.h" |
| #include "llvm/IR/PassManager.h" |
| #include "llvm/IR/TypedPointerType.h" |
| |
| namespace llvm { |
| |
| namespace dxil { |
| |
| // Store the underlying type and the number of pointer indirections |
| using PointerTypeMap = DenseMap<const Value *, Type *>; |
| |
| /// An analysis to compute the \c PointerTypes for pointers in a \c Module. |
| /// Since this analysis is only run during codegen and the new pass manager |
| /// doesn't support codegen passes, this is wrtten as a function in a namespace. |
| /// It is very simple to transform it into a proper analysis pass. |
| /// This code relies on typed pointers existing as LLVM types, but could be |
| /// migrated to a custom Type if PointerType loses typed support. |
| namespace PointerTypeAnalysis { |
| |
| /// Compute the \c PointerTypeMap for the module \c M. |
| PointerTypeMap run(const Module &M); |
| } // namespace PointerTypeAnalysis |
| |
| } // namespace dxil |
| |
| } // namespace llvm |
| |
| #endif // LLVM_TARGET_DIRECTX_POINTERTYPEANALYSIS_H |
