1 | //===--- InterpShared.cpp ---------------------------------------*- 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 | #include "InterpShared.h" |
10 | #include "clang/AST/Attr.h" |
11 | #include "llvm/ADT/BitVector.h" |
12 | |
13 | namespace clang { |
14 | namespace interp { |
15 | |
16 | llvm::BitVector collectNonNullArgs(const FunctionDecl *F, |
17 | const llvm::ArrayRef<const Expr *> &Args) { |
18 | llvm::BitVector NonNullArgs; |
19 | if (!F) |
20 | return NonNullArgs; |
21 | |
22 | assert(F); |
23 | NonNullArgs.resize(N: Args.size()); |
24 | |
25 | for (const auto *Attr : F->specific_attrs<NonNullAttr>()) { |
26 | if (!Attr->args_size()) { |
27 | NonNullArgs.set(); |
28 | break; |
29 | } else |
30 | for (auto Idx : Attr->args()) { |
31 | unsigned ASTIdx = Idx.getASTIndex(); |
32 | if (ASTIdx >= Args.size()) |
33 | continue; |
34 | NonNullArgs[ASTIdx] = true; |
35 | } |
36 | } |
37 | |
38 | return NonNullArgs; |
39 | } |
40 | |
41 | } // namespace interp |
42 | } // namespace clang |
43 | |