1//===-- MipsSEISelDAGToDAG.h - A Dag to Dag Inst Selector for MipsSE -----===//
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// Subclass of MipsDAGToDAGISel specialized for mips32/64.
10//
11//===----------------------------------------------------------------------===//
12
13#ifndef LLVM_LIB_TARGET_MIPS_MIPSSEISELDAGTODAG_H
14#define LLVM_LIB_TARGET_MIPS_MIPSSEISELDAGTODAG_H
15
16#include "MipsISelDAGToDAG.h"
17
18namespace llvm {
19
20class MipsSEDAGToDAGISel : public MipsDAGToDAGISel {
21
22public:
23 explicit MipsSEDAGToDAGISel(MipsTargetMachine &TM, CodeGenOptLevel OL)
24 : MipsDAGToDAGISel(TM, OL) {}
25
26private:
27
28 bool runOnMachineFunction(MachineFunction &MF) override;
29
30 void addDSPCtrlRegOperands(bool IsDef, MachineInstr &MI,
31 MachineFunction &MF);
32
33 MCRegister getMSACtrlReg(const SDValue RegIdx) const;
34
35 bool replaceUsesWithZeroReg(MachineRegisterInfo *MRI, const MachineInstr&);
36
37 std::pair<SDNode *, SDNode *> selectMULT(SDNode *N, unsigned Opc,
38 const SDLoc &dl, EVT Ty, bool HasLo,
39 bool HasHi);
40
41 void selectAddE(SDNode *Node, const SDLoc &DL) const;
42
43 bool selectAddrFrameIndex(SDValue Addr, SDValue &Base, SDValue &Offset) const;
44 bool selectAddrFrameIndexOffset(SDValue Addr, SDValue &Base, SDValue &Offset,
45 unsigned OffsetBits,
46 unsigned ShiftAmount) const;
47
48 bool selectAddrRegImm(SDValue Addr, SDValue &Base,
49 SDValue &Offset) const override;
50
51 bool selectAddrDefault(SDValue Addr, SDValue &Base,
52 SDValue &Offset) const override;
53
54 bool selectIntAddr(SDValue Addr, SDValue &Base,
55 SDValue &Offset) const override;
56
57 bool selectAddrRegImm9(SDValue Addr, SDValue &Base,
58 SDValue &Offset) const;
59
60 bool selectAddrRegImm11(SDValue Addr, SDValue &Base,
61 SDValue &Offset) const;
62
63 bool selectAddrRegImm12(SDValue Addr, SDValue &Base,
64 SDValue &Offset) const;
65
66 bool selectAddrRegImm16(SDValue Addr, SDValue &Base,
67 SDValue &Offset) const;
68
69 bool selectIntAddr11MM(SDValue Addr, SDValue &Base,
70 SDValue &Offset) const override;
71
72 bool selectIntAddr12MM(SDValue Addr, SDValue &Base,
73 SDValue &Offset) const override;
74
75 bool selectIntAddr16MM(SDValue Addr, SDValue &Base,
76 SDValue &Offset) const override;
77
78 bool selectIntAddrLSL2MM(SDValue Addr, SDValue &Base,
79 SDValue &Offset) const override;
80
81 bool selectIntAddrSImm10(SDValue Addr, SDValue &Base,
82 SDValue &Offset) const override;
83
84 bool selectIntAddrSImm10Lsl1(SDValue Addr, SDValue &Base,
85 SDValue &Offset) const override;
86
87 bool selectIntAddrSImm10Lsl2(SDValue Addr, SDValue &Base,
88 SDValue &Offset) const override;
89
90 bool selectIntAddrSImm10Lsl3(SDValue Addr, SDValue &Base,
91 SDValue &Offset) const override;
92
93 /// Select constant vector splats.
94 bool selectVSplat(SDNode *N, APInt &Imm,
95 unsigned MinSizeInBits) const override;
96 /// Select constant vector splats whose value fits in a given integer.
97 bool selectVSplatCommon(SDValue N, SDValue &Imm, bool Signed,
98 unsigned ImmBitSize) const override;
99 /// Select constant vector splats whose value is a power of 2.
100 bool selectVSplatUimmPow2(SDValue N, SDValue &Imm) const override;
101 /// Select constant vector splats whose value is the inverse of a
102 /// power of 2.
103 bool selectVSplatUimmInvPow2(SDValue N, SDValue &Imm) const override;
104 /// Select constant vector splats whose value is a run of set bits
105 /// ending at the most significant bit.
106 bool selectVSplatMaskL(SDValue N, SDValue &Imm) const override;
107 /// Select constant vector splats whose value is a run of set bits
108 /// starting at bit zero.
109 bool selectVSplatMaskR(SDValue N, SDValue &Imm) const override;
110
111 /// Select constant vector splats whose value is 1.
112 bool selectVSplatImmEq1(SDValue N) const override;
113
114 bool trySelect(SDNode *Node) override;
115
116 // Emits proper ABI for _mcount profiling calls.
117 void emitMCountABI(MachineInstr &MI, MachineBasicBlock &MBB,
118 MachineFunction &MF);
119
120 void processFunctionAfterISel(MachineFunction &MF) override;
121
122 bool SelectInlineAsmMemoryOperand(const SDValue &Op,
123 InlineAsm::ConstraintCode ConstraintID,
124 std::vector<SDValue> &OutOps) override;
125};
126
127class MipsSEDAGToDAGISelLegacy : public MipsDAGToDAGISelLegacy {
128public:
129 explicit MipsSEDAGToDAGISelLegacy(MipsTargetMachine &TM, CodeGenOptLevel OL);
130 void getAnalysisUsage(AnalysisUsage &AU) const override;
131};
132
133FunctionPass *createMipsSEISelDag(MipsTargetMachine &TM,
134 CodeGenOptLevel OptLevel);
135}
136
137#endif
138