mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-26 21:32:10 +00:00
f94b5edc45
if it is not ultimately captured. Teach BasicAliasAnalysis that a local object address which does not escape and is never stored does not alias with a value resulting from a load. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89398 91177308-0d34-0410-b5e6-96231b3b80d8
34 lines
1.3 KiB
C++
34 lines
1.3 KiB
C++
//===----- llvm/Analysis/CaptureTracking.h - Pointer capture ----*- C++ -*-===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file contains routines that help determine which pointers are captured.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef LLVM_ANALYSIS_CAPTURETRACKING_H
|
|
#define LLVM_ANALYSIS_CAPTURETRACKING_H
|
|
|
|
namespace llvm {
|
|
class Value;
|
|
|
|
/// PointerMayBeCaptured - Return true if this pointer value may be captured
|
|
/// by the enclosing function (which is required to exist). This routine can
|
|
/// be expensive, so consider caching the results. The boolean ReturnCaptures
|
|
/// specifies whether returning the value (or part of it) from the function
|
|
/// counts as capturing it or not. The boolean StoreCaptures specified whether
|
|
/// storing the value (or part of it) into memory anywhere automatically
|
|
/// counts as capturing it or not.
|
|
bool PointerMayBeCaptured(const Value *V,
|
|
bool ReturnCaptures,
|
|
bool StoreCaptures);
|
|
|
|
} // end namespace llvm
|
|
|
|
#endif
|