llvm/clang/lib/CodeGen/VarBypassDetector.cpp

//===--- VarBypassDetector.cpp - Bypass jumps detector ------------*- 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
//
//===----------------------------------------------------------------------===//

#include "VarBypassDetector.h"

#include "clang/AST/Decl.h"
#include "clang/AST/Expr.h"
#include "clang/AST/Stmt.h"

usingnamespaceclang;
usingnamespaceCodeGen;

/// Clear the object and pre-process for the given statement, usually function
/// body statement.
void VarBypassDetector::Init(const Stmt *Body) { … }

/// Build scope information for a declaration that is part of a DeclStmt.
/// Returns false if we failed to build scope information and can't tell for
/// which vars are being bypassed.
bool VarBypassDetector::BuildScopeInformation(const Decl *D,
                                              unsigned &ParentScope) { … }

/// Walk through the statements, adding any labels or gotos to
/// LabelAndGotoScopes and recursively walking the AST as needed.
/// Returns false if we failed to build scope information and can't tell for
/// which vars are being bypassed.
bool VarBypassDetector::BuildScopeInformation(const Stmt *S,
                                              unsigned &origParentScope) { … }

/// Checks each jump and stores each variable declaration they bypass.
void VarBypassDetector::Detect() { … }

/// Checks the jump and stores each variable declaration it bypasses.
void VarBypassDetector::Detect(unsigned From, unsigned To) { … }