Jim Stichnoth | dd6dcfa | 2016-04-18 12:52:09 -0700 | [diff] [blame] | 1 | //===- subzero/src/IceRangeSpec.h - Include/exclude specs -------*- C++ -*-===// |
| 2 | // |
| 3 | // The Subzero Code Generator |
| 4 | // |
| 5 | // This file is distributed under the University of Illinois Open Source |
| 6 | // License. See LICENSE.TXT for details. |
| 7 | // |
| 8 | //===----------------------------------------------------------------------===// |
| 9 | /// |
| 10 | /// \file |
| 11 | /// \brief Declares a class for specifying inclusion/exclusion of values, such |
| 12 | /// as functions to match. |
| 13 | /// |
| 14 | //===----------------------------------------------------------------------===// |
| 15 | |
| 16 | #ifndef SUBZERO_SRC_ICERANGESPEC_H |
| 17 | #define SUBZERO_SRC_ICERANGESPEC_H |
| 18 | |
| 19 | #include "IceStringPool.h" |
| 20 | |
| 21 | #include <string> |
| 22 | #include <unordered_set> |
| 23 | #include <vector> |
| 24 | |
| 25 | #include "llvm/ADT/BitVector.h" |
| 26 | |
| 27 | namespace Ice { |
| 28 | |
| 29 | class RangeSpec { |
| 30 | RangeSpec(const RangeSpec &) = delete; |
| 31 | RangeSpec &operator=(const RangeSpec &) = delete; |
| 32 | |
| 33 | public: |
| 34 | static constexpr char DELIM_LIST = ','; |
| 35 | static constexpr char DELIM_RANGE = ':'; |
| 36 | static constexpr uint32_t RangeMax = std::numeric_limits<uint32_t>::max(); |
| 37 | RangeSpec() = default; |
| 38 | struct Desc { |
| 39 | // Set of names explicitly provided. |
| 40 | std::unordered_set<std::string> Names; |
| 41 | // Set of numbers explicitly provided. |
| 42 | llvm::BitVector Numbers; |
| 43 | // The smallest X for which the open-ended interval "X:" was provided. This |
| 44 | // is needed because the intervals are parsed before we know the largest |
| 45 | // number that might be matched against, and we can't make the Numbers |
| 46 | // bitvector infinitely long. |
| 47 | uint32_t AllFrom = RangeMax; |
| 48 | // Whether a clause was explicitly provided. |
| 49 | bool IsExplicit = false; |
| 50 | }; |
| 51 | void init(const std::string &Spec); |
| 52 | bool match(const std::string &Name, uint32_t Number) const; |
| 53 | bool match(GlobalString Name, uint32_t Number) const { |
| 54 | return match(Name.toStringOrEmpty(), Number); |
| 55 | } |
| 56 | // Returns true if any RangeSpec object has had init() called with an explicit |
| 57 | // name rather than (or in addition to) a numeric range. If so, we want to |
| 58 | // construct explicit names for functions even in a non-DUMP build so that |
| 59 | // matching on function name works correctly. Note that this is not |
| 60 | // thread-safe, so we count on all this being handled by the startup thread. |
| 61 | static bool hasNames() { return HasNames; } |
Jim Stichnoth | fd07ad0 | 2016-04-20 10:12:46 -0700 | [diff] [blame] | 62 | // Helper function to tokenize a string into a vector of string tokens, given |
| 63 | // a single delimiter character. An empty string produces an empty token |
| 64 | // vector. Zero-length tokens are allowed, e.g. ",a,,,b," may tokenize to |
| 65 | // {"","a","","","b",""}. |
| 66 | static std::vector<std::string> tokenize(const std::string &Spec, |
| 67 | char Delimiter); |
Jim Stichnoth | dd6dcfa | 2016-04-18 12:52:09 -0700 | [diff] [blame] | 68 | |
| 69 | private: |
| 70 | void include(const std::string &Token); |
| 71 | void exclude(const std::string &Token); |
| 72 | Desc Includes; |
| 73 | Desc Excludes; |
| 74 | static bool HasNames; |
| 75 | }; |
| 76 | |
| 77 | } // end of namespace Ice |
| 78 | |
| 79 | #endif // SUBZERO_SRC_ICERANGESPEC_H |