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 38 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
