1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
|
//===- PIC16RegisterInfo.td - PIC16 Register defs ------------*- tblgen -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//===----------------------------------------------------------------------===//
// Declarations that describe the PIC16 register file
//===----------------------------------------------------------------------===//
// We have banks of 32 registers each.
class PIC16Reg<string n> : Register<n> {
field bits<5> Num;
let Namespace = "PIC16";
}
// PIC16 CPU Registers
class PIC16GPRReg<bits<5> num, string n> : PIC16Reg<n> {
let Num = num;
}
// CPU GPR Registers
def FSR0 : PIC16GPRReg< 0, "FSR0">, DwarfRegNum<[0]>;
def FSR1 : PIC16GPRReg< 1, "FSR1">, DwarfRegNum<[1]>;
// CPU Registers Class
def PTRRegs : RegisterClass<"PIC16", [i16], 8,
[FSR0, FSR1]>
{
let MethodProtos = [{
iterator allocation_order_end(const MachineFunction &MF) const;
}];
let MethodBodies = [{
PTRRegsClass::iterator
PTRRegsClass::allocation_order_end(const MachineFunction &MF) const {
return end();
}
}];
}
def WREG : PIC16GPRReg< 0, "WREG">, DwarfRegNum<[0]>;
// CPU Registers Class
def CPURegs : RegisterClass<"PIC16", [i8], 8,
[WREG]>
{
let MethodProtos = [{
iterator allocation_order_end(const MachineFunction &MF) const;
}];
let MethodBodies = [{
CPURegsClass::iterator
CPURegsClass::allocation_order_end(const MachineFunction &MF) const {
return end();
}
}];
}
def STATUSREG : PIC16GPRReg<2, "STATUS">, DwarfRegNum<[0]>;
// STATUS Registers Class
def STATUSRegs : RegisterClass<"PIC16", [i8], 8,
[STATUSREG]>;
// Dummy stack pointer.
def STKPTR : PIC16GPRReg< 0, "SP">, DwarfRegNum<[0]>;
// CPU Registers Class
def STKRegs : RegisterClass<"PIC16", [i8], 8,
[STKPTR]>
{
let MethodProtos = [{
iterator allocation_order_end(const MachineFunction &MF) const;
}];
let MethodBodies = [{
STKRegsClass::iterator
STKRegsClass::allocation_order_end(const MachineFunction &MF) const {
return end();
}
}];
}
|
