1//===--- LoopHint.h - Types for LoopHint ------------------------*- 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#ifndef LLVM_CLANG_PARSE_LOOPHINT_H
10#define LLVM_CLANG_PARSE_LOOPHINT_H
11
12#include "clang/Basic/IdentifierTable.h"
13#include "clang/Basic/SourceLocation.h"
14#include "clang/Sema/Ownership.h"
15#include "clang/Sema/ParsedAttr.h"
16
17namespace clang {
18
19/// Loop optimization hint for loop and unroll pragmas.
20struct LoopHint {
21  // Source range of the directive.
22  SourceRange Range;
23  // Identifier corresponding to the name of the pragma.  "loop" for
24  // "#pragma clang loop" directives and "unroll" for "#pragma unroll"
25  // hints.
26  IdentifierLoc *PragmaNameLoc;
27  // Name of the loop hint.  Examples: "unroll", "vectorize".  In the
28  // "#pragma unroll" and "#pragma nounroll" cases, this is identical to
29  // PragmaNameLoc.
30  IdentifierLoc *OptionLoc;
31  // Identifier for the hint state argument.  If null, then the state is
32  // default value such as for "#pragma unroll".
33  IdentifierLoc *StateLoc;
34  // Expression for the hint argument if it exists, null otherwise.
35  Expr *ValueExpr;
36
37  LoopHint()
38      : PragmaNameLoc(nullptr), OptionLoc(nullptr), StateLoc(nullptr),
39        ValueExpr(nullptr) {}
40};
41
42} // end namespace clang
43
44#endif // LLVM_CLANG_PARSE_LOOPHINT_H
45