/Users/buildslave/jenkins/workspace/coverage/llvm-project/clang/include/clang/Basic/XRayInstr.h
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1 | | //===--- XRayInstr.h --------------------------------------------*- 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 | | /// \file |
10 | | /// Defines the clang::XRayInstrKind enum. |
11 | | // |
12 | | //===----------------------------------------------------------------------===// |
13 | | |
14 | | #ifndef LLVM_CLANG_BASIC_XRAYINSTR_H |
15 | | #define LLVM_CLANG_BASIC_XRAYINSTR_H |
16 | | |
17 | | #include "clang/Basic/LLVM.h" |
18 | | #include "llvm/ADT/StringRef.h" |
19 | | #include "llvm/Support/MathExtras.h" |
20 | | #include <cassert> |
21 | | #include <cstdint> |
22 | | |
23 | | namespace clang { |
24 | | |
25 | | using XRayInstrMask = uint32_t; |
26 | | |
27 | | namespace XRayInstrKind { |
28 | | |
29 | | // TODO: Auto-generate these as we add more instrumentation kinds. |
30 | | enum XRayInstrOrdinal : XRayInstrMask { |
31 | | XRIO_FunctionEntry, |
32 | | XRIO_FunctionExit, |
33 | | XRIO_Custom, |
34 | | XRIO_Typed, |
35 | | XRIO_Count |
36 | | }; |
37 | | |
38 | | constexpr XRayInstrMask None = 0; |
39 | | constexpr XRayInstrMask FunctionEntry = 1U << XRIO_FunctionEntry; |
40 | | constexpr XRayInstrMask FunctionExit = 1U << XRIO_FunctionExit; |
41 | | constexpr XRayInstrMask Custom = 1U << XRIO_Custom; |
42 | | constexpr XRayInstrMask Typed = 1U << XRIO_Typed; |
43 | | constexpr XRayInstrMask All = FunctionEntry | FunctionExit | Custom | Typed; |
44 | | |
45 | | } // namespace XRayInstrKind |
46 | | |
47 | | struct XRayInstrSet { |
48 | 441 | bool has(XRayInstrMask K) const { |
49 | 441 | assert(llvm::isPowerOf2_32(K)); |
50 | 0 | return Mask & K; |
51 | 441 | } |
52 | | |
53 | 0 | bool hasOneOf(XRayInstrMask K) const { return Mask & K; } |
54 | | |
55 | 38 | void set(XRayInstrMask K, bool Value) { |
56 | 38 | Mask = Value ? (Mask | K) : (Mask & ~K)0 ; |
57 | 38 | } |
58 | | |
59 | 0 | void clear(XRayInstrMask K = XRayInstrKind::All) { Mask &= ~K; } |
60 | | |
61 | 0 | bool empty() const { return Mask == 0; } |
62 | | |
63 | 11 | bool full() const { return Mask == XRayInstrKind::All; } |
64 | | |
65 | | XRayInstrMask Mask = 0; |
66 | | }; |
67 | | |
68 | | /// Parses a command line argument into a mask. |
69 | | XRayInstrMask parseXRayInstrValue(StringRef Value); |
70 | | |
71 | | /// Serializes a set into a list of command line arguments. |
72 | | void serializeXRayInstrValue(XRayInstrSet Set, |
73 | | SmallVectorImpl<StringRef> &Values); |
74 | | |
75 | | } // namespace clang |
76 | | |
77 | | #endif // LLVM_CLANG_BASIC_XRAYINSTR_H |