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| Rev | Author | Line No. | Line |
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| 14 | pmbaty | 1 | //===--- XRayInstr.h --------------------------------------------*- C++ -*-===// |
| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | // |
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| 9 | /// \file |
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| 10 | /// Defines the clang::XRayInstrKind enum. |
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| 11 | // |
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| 12 | //===----------------------------------------------------------------------===// |
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| 13 | |||
| 14 | #ifndef LLVM_CLANG_BASIC_XRAYINSTR_H |
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| 15 | #define LLVM_CLANG_BASIC_XRAYINSTR_H |
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| 16 | |||
| 17 | #include "clang/Basic/LLVM.h" |
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| 18 | #include "llvm/ADT/StringRef.h" |
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| 19 | #include "llvm/Support/MathExtras.h" |
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| 20 | #include <cassert> |
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| 21 | #include <cstdint> |
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| 22 | |||
| 23 | namespace clang { |
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| 24 | |||
| 25 | using XRayInstrMask = uint32_t; |
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| 26 | |||
| 27 | namespace XRayInstrKind { |
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| 28 | |||
| 29 | // TODO: Auto-generate these as we add more instrumentation kinds. |
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| 30 | enum XRayInstrOrdinal : XRayInstrMask { |
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| 31 | XRIO_FunctionEntry, |
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| 32 | XRIO_FunctionExit, |
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| 33 | XRIO_Custom, |
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| 34 | XRIO_Typed, |
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| 35 | XRIO_Count |
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| 36 | }; |
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| 37 | |||
| 38 | constexpr XRayInstrMask None = 0; |
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| 39 | constexpr XRayInstrMask FunctionEntry = 1U << XRIO_FunctionEntry; |
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| 40 | constexpr XRayInstrMask FunctionExit = 1U << XRIO_FunctionExit; |
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| 41 | constexpr XRayInstrMask Custom = 1U << XRIO_Custom; |
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| 42 | constexpr XRayInstrMask Typed = 1U << XRIO_Typed; |
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| 43 | constexpr XRayInstrMask All = FunctionEntry | FunctionExit | Custom | Typed; |
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| 44 | |||
| 45 | } // namespace XRayInstrKind |
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| 46 | |||
| 47 | struct XRayInstrSet { |
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| 48 | bool has(XRayInstrMask K) const { |
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| 49 | assert(llvm::isPowerOf2_32(K)); |
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| 50 | return Mask & K; |
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| 51 | } |
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| 52 | |||
| 53 | bool hasOneOf(XRayInstrMask K) const { return Mask & K; } |
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| 54 | |||
| 55 | void set(XRayInstrMask K, bool Value) { |
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| 56 | Mask = Value ? (Mask | K) : (Mask & ~K); |
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| 57 | } |
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| 58 | |||
| 59 | void clear(XRayInstrMask K = XRayInstrKind::All) { Mask &= ~K; } |
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| 60 | |||
| 61 | bool empty() const { return Mask == 0; } |
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| 62 | |||
| 63 | bool full() const { return Mask == XRayInstrKind::All; } |
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| 64 | |||
| 65 | XRayInstrMask Mask = 0; |
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| 66 | }; |
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| 67 | |||
| 68 | /// Parses a command line argument into a mask. |
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| 69 | XRayInstrMask parseXRayInstrValue(StringRef Value); |
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| 70 | |||
| 71 | /// Serializes a set into a list of command line arguments. |
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| 72 | void serializeXRayInstrValue(XRayInstrSet Set, |
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| 73 | SmallVectorImpl<StringRef> &Values); |
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| 74 | |||
| 75 | } // namespace clang |
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| 76 | |||
| 77 | #endif // LLVM_CLANG_BASIC_XRAYINSTR_H |