1 //===- AMDGPUMemoryUtils.h - Memory related helper functions -*- C++ -*----===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #ifndef LLVM_LIB_TARGET_AMDGPU_UTILS_AMDGPUMEMORYUTILS_H 10 #define LLVM_LIB_TARGET_AMDGPU_UTILS_AMDGPUMEMORYUTILS_H 11 12 #include <vector> 13 14 namespace llvm { 15 16 struct Align; 17 class AAResults; 18 class DataLayout; 19 class Function; 20 class GlobalVariable; 21 class LoadInst; 22 class MemoryDef; 23 class MemorySSA; 24 class Module; 25 class Value; 26 27 namespace AMDGPU { 28 29 Align getAlign(DataLayout const &DL, const GlobalVariable *GV); 30 31 bool isLDSVariableToLower(const GlobalVariable &GV); 32 std::vector<GlobalVariable *> findLDSVariablesToLower(Module &M, 33 const Function *F); 34 35 /// Given a \p Def clobbering a load from \p Ptr according to the MSSA check 36 /// if this is actually a memory update or an artificial clobber to facilitate 37 /// ordering constraints. 38 bool isReallyAClobber(const Value *Ptr, MemoryDef *Def, AAResults *AA); 39 40 /// Check is a \p Load is clobbered in its function. 41 bool isClobberedInFunction(const LoadInst *Load, MemorySSA *MSSA, 42 AAResults *AA); 43 44 } // end namespace AMDGPU 45 46 } // end namespace llvm 47 48 #endif // LLVM_LIB_TARGET_AMDGPU_UTILS_AMDGPUMEMORYUTILS_H 49