1 | //===- PseudoProbePrinter.h - Pseudo probe encoding support -----*- 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 | // This file contains support for writing pseudo probe info into asm files. |
10 | // |
11 | //===----------------------------------------------------------------------===// |
12 | |
13 | #ifndef LLVM_LIB_CODEGEN_ASMPRINTER_PSEUDOPROBEPRINTER_H |
14 | #define LLVM_LIB_CODEGEN_ASMPRINTER_PSEUDOPROBEPRINTER_H |
15 | |
16 | #include "llvm/ADT/DenseMap.h" |
17 | #include "llvm/CodeGen/AsmPrinterHandler.h" |
18 | |
19 | namespace llvm { |
20 | |
21 | class AsmPrinter; |
22 | class DILocation; |
23 | |
24 | class PseudoProbeHandler : public AsmPrinterHandler { |
25 | // Target of pseudo probe emission. |
26 | AsmPrinter *Asm; |
27 | // Name to GUID map, used as caching/memoization for speed. |
28 | DenseMap<StringRef, uint64_t> NameGuidMap; |
29 | |
30 | public: |
31 | PseudoProbeHandler(AsmPrinter *A) : Asm(A){}; |
32 | ~PseudoProbeHandler() override; |
33 | |
34 | void emitPseudoProbe(uint64_t Guid, uint64_t Index, uint64_t Type, |
35 | uint64_t Attr, const DILocation *DebugLoc); |
36 | |
37 | // Unused. |
38 | void setSymbolSize(const MCSymbol *Sym, uint64_t Size) override {} |
39 | void endModule() override {} |
40 | void beginFunction(const MachineFunction *MF) override {} |
41 | void endFunction(const MachineFunction *MF) override {} |
42 | void beginInstruction(const MachineInstr *MI) override {} |
43 | void endInstruction() override {} |
44 | }; |
45 | |
46 | } // namespace llvm |
47 | #endif // LLVM_LIB_CODEGEN_ASMPRINTER_PSEUDOPROBEPRINTER_H |
48 | |