1 //===--- LoopHint.h - Types for LoopHint ------------------------*- C++ -*-===//
2 //
3 //                     The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 
10 #ifndef LLVM_CLANG_SEMA_LOOPHINT_H
11 #define LLVM_CLANG_SEMA_LOOPHINT_H
12 
13 #include "clang/Basic/IdentifierTable.h"
14 #include "clang/Basic/SourceLocation.h"
15 #include "clang/Sema/AttributeList.h"
16 #include "clang/Sema/Ownership.h"
17 
18 namespace clang {
19 
20 /// \brief Loop optimization hint for loop and unroll pragmas.
21 struct LoopHint {
22   // Source range of the directive.
23   SourceRange Range;
24   // Identifier corresponding to the name of the pragma.  "loop" for
25   // "#pragma clang loop" directives and "unroll" for "#pragma unroll"
26   // hints.
27   IdentifierLoc *PragmaNameLoc;
28   // Name of the loop hint.  Examples: "unroll", "vectorize".  In the
29   // "#pragma unroll" and "#pragma nounroll" cases, this is identical to
30   // PragmaNameLoc.
31   IdentifierLoc *OptionLoc;
32   // Identifier for the hint state argument.  If null, then the state is
33   // default value such as for "#pragma unroll".
34   IdentifierLoc *StateLoc;
35   // Expression for the hint argument if it exists, null otherwise.
36   Expr *ValueExpr;
37 
LoopHintLoopHint38   LoopHint()
39       : PragmaNameLoc(nullptr), OptionLoc(nullptr), StateLoc(nullptr),
40         ValueExpr(nullptr) {}
41 };
42 
43 } // end namespace clang
44 
45 #endif // LLVM_CLANG_SEMA_LOOPHINT_H
46