1//===- HexagonAsmPrinter.h - Print machine code -----------------*- 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// Hexagon Assembly printer class.
10//
11//===----------------------------------------------------------------------===//
12
13#ifndef LLVM_LIB_TARGET_HEXAGON_HEXAGONASMPRINTER_H
14#define LLVM_LIB_TARGET_HEXAGON_HEXAGONASMPRINTER_H
15
16#include "HexagonSubtarget.h"
17#include "llvm/CodeGen/AsmPrinter.h"
18#include "llvm/CodeGen/MachineFunction.h"
19#include "llvm/MC/MCStreamer.h"
20#include <utility>
21
22namespace llvm {
23
24class MachineInstr;
25class MCInst;
26class raw_ostream;
27class TargetMachine;
28
29 class HexagonAsmPrinter : public AsmPrinter {
30 const HexagonSubtarget *Subtarget = nullptr;
31
32 void emitAttributes();
33
34 public:
35 explicit HexagonAsmPrinter(TargetMachine &TM,
36 std::unique_ptr<MCStreamer> Streamer)
37 : AsmPrinter(TM, std::move(Streamer)) {}
38
39 bool runOnMachineFunction(MachineFunction &Fn) override {
40 Subtarget = &Fn.getSubtarget<HexagonSubtarget>();
41 const bool Modified = AsmPrinter::runOnMachineFunction(MF&: Fn);
42 // Emit the XRay table for this function.
43 emitXRayTable();
44
45 return Modified;
46 }
47
48 StringRef getPassName() const override {
49 return "Hexagon Assembly Printer";
50 }
51
52 bool isBlockOnlyReachableByFallthrough(const MachineBasicBlock *MBB)
53 const override;
54
55 void emitInstruction(const MachineInstr *MI) override;
56
57 //===------------------------------------------------------------------===//
58 // XRay implementation
59 //===------------------------------------------------------------------===//
60 // XRay-specific lowering for Hexagon.
61 void LowerPATCHABLE_FUNCTION_ENTER(const MachineInstr &MI);
62 void LowerPATCHABLE_FUNCTION_EXIT(const MachineInstr &MI);
63 void LowerPATCHABLE_TAIL_CALL(const MachineInstr &MI);
64 void EmitSled(const MachineInstr &MI, SledKind Kind);
65
66 void HexagonProcessInstruction(MCInst &Inst, const MachineInstr &MBB);
67
68 void printOperand(const MachineInstr *MI, unsigned OpNo, raw_ostream &O);
69 bool PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
70 const char *ExtraCode, raw_ostream &OS) override;
71 bool PrintAsmMemoryOperand(const MachineInstr *MI, unsigned OpNo,
72 const char *ExtraCode, raw_ostream &OS) override;
73 void emitStartOfAsmFile(Module &M) override;
74 void emitEndOfAsmFile(Module &M) override;
75 };
76
77} // end namespace llvm
78
79#endif // LLVM_LIB_TARGET_HEXAGON_HEXAGONASMPRINTER_H
80