1 //===----- llvm/Analysis/CaptureTracking.h - Pointer capture ----*- C++ -*-===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 // 10 // This file contains routines that help determine which pointers are captured. 11 // 12 //===----------------------------------------------------------------------===// 13 14 #ifndef LLVM_ANALYSIS_CAPTURETRACKING_H 15 #define LLVM_ANALYSIS_CAPTURETRACKING_H 16 17 namespace llvm { 18 class Value; 19 20 /// PointerMayBeCaptured - Return true if this pointer value may be captured 21 /// by the enclosing function (which is required to exist). This routine can 22 /// be expensive, so consider caching the results. The boolean ReturnCaptures 23 /// specifies whether returning the value (or part of it) from the function 24 /// counts as capturing it or not. The boolean StoreCaptures specified 25 /// whether storing the value (or part of it) into memory anywhere 26 /// automatically counts as capturing it or not. 27 bool PointerMayBeCaptured(const Value *V, 28 bool ReturnCaptures, 29 bool StoreCaptures); 30 31 } // end namespace llvm 32 33 #endif 34