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43 lines
1.1 KiB
C++
43 lines
1.1 KiB
C++
//===--- InterpShared.cpp ---------------------------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "InterpShared.h"
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#include "clang/AST/Attr.h"
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#include "llvm/ADT/BitVector.h"
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namespace clang {
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namespace interp {
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llvm::BitVector collectNonNullArgs(const FunctionDecl *F,
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const llvm::ArrayRef<const Expr *> &Args) {
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llvm::BitVector NonNullArgs;
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if (!F)
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return NonNullArgs;
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assert(F);
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NonNullArgs.resize(Args.size());
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for (const auto *Attr : F->specific_attrs<NonNullAttr>()) {
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if (!Attr->args_size()) {
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NonNullArgs.set();
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break;
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} else
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for (auto Idx : Attr->args()) {
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unsigned ASTIdx = Idx.getASTIndex();
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if (ASTIdx >= Args.size())
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continue;
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NonNullArgs[ASTIdx] = true;
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}
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}
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return NonNullArgs;
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}
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} // namespace interp
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} // namespace clang
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