clang  7.0.0
XRayInstr.h
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1 //===--- XRayInstr.h --------------------------------------------*- 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 /// \file
11 /// Defines the clang::XRayInstrKind enum.
12 //
13 //===----------------------------------------------------------------------===//
14 
15 #ifndef LLVM_CLANG_BASIC_XRAYINSTR_H
16 #define LLVM_CLANG_BASIC_XRAYINSTR_H
17 
18 #include "clang/Basic/LLVM.h"
19 #include "llvm/ADT/StringRef.h"
20 #include "llvm/Support/MathExtras.h"
21 #include <cassert>
22 #include <cstdint>
23 
24 namespace clang {
25 
26 using XRayInstrMask = uint32_t;
27 
28 namespace XRayInstrKind {
29 
30 // TODO: Auto-generate these as we add more instrumentation kinds.
36 };
37 
38 constexpr XRayInstrMask None = 0;
40 constexpr XRayInstrMask Custom = 1U << XRIO_Custom;
41 constexpr XRayInstrMask Typed = 1U << XRIO_Typed;
42 constexpr XRayInstrMask All = Function | Custom | Typed;
43 
44 } // namespace XRayInstrKind
45 
46 struct XRayInstrSet {
47  bool has(XRayInstrMask K) const {
48  assert(llvm::isPowerOf2_32(K));
49  return Mask & K;
50  }
51 
52  bool hasOneOf(XRayInstrMask K) const { return Mask & K; }
53 
54  void set(XRayInstrMask K, bool Value) {
55  assert(llvm::isPowerOf2_32(K));
56  Mask = Value ? (Mask | K) : (Mask & ~K);
57  }
58 
59  void clear(XRayInstrMask K = XRayInstrKind::All) { Mask &= ~K; }
60 
61  bool empty() const { return Mask == 0; }
62 
63  XRayInstrMask Mask = 0;
64 };
65 
67 
68 } // namespace clang
69 
70 #endif // LLVM_CLANG_BASIC_XRAYINSTR_H
void clear(XRayInstrMask K=XRayInstrKind::All)
Definition: XRayInstr.h:59
constexpr XRayInstrMask Typed
Definition: XRayInstr.h:41
constexpr XRayInstrMask Function
Definition: XRayInstr.h:39
Forward-declares and imports various common LLVM datatypes that clang wants to use unqualified...
constexpr XRayInstrMask All
Definition: XRayInstr.h:42
constexpr XRayInstrMask Custom
Definition: XRayInstr.h:40
bool hasOneOf(XRayInstrMask K) const
Definition: XRayInstr.h:52
constexpr XRayInstrMask None
Definition: XRayInstr.h:38
Dataflow Directional Tag Classes.
bool has(XRayInstrMask K) const
Definition: XRayInstr.h:47
uint32_t XRayInstrMask
Definition: XRayInstr.h:26
bool empty() const
Definition: XRayInstr.h:61
XRayInstrMask parseXRayInstrValue(StringRef Value)
Definition: XRayInstr.cpp:19