1 //===- MBlazeRegisterInfo.td - MBlaze Register defs --------*- tablegen -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 //===----------------------------------------------------------------------===//
11 // Declarations that describe the MicroBlaze register file
12 //===----------------------------------------------------------------------===//
14 // We have banks of 32 registers each.
15 class MBlazeReg<string n> : Register<n> {
17 let Namespace = "MBlaze";
20 // Special purpose registers have 15-bit values
21 class MBlazeSReg<string n> : Register<n> {
23 let Namespace = "MBlaze";
26 // MBlaze general purpose registers
27 class MBlazeGPRReg<bits<5> num, string n> : MBlazeReg<n> {
31 // MBlaze special purpose registers
32 class MBlazeSPRReg<bits<15> num, string n> : MBlazeSReg<n> {
36 //===----------------------------------------------------------------------===//
38 //===----------------------------------------------------------------------===//
40 let Namespace = "MBlaze" in {
41 // General Purpose Registers
42 def R0 : MBlazeGPRReg< 0, "r0">, DwarfRegNum<[0]>;
43 def R1 : MBlazeGPRReg< 1, "r1">, DwarfRegNum<[1]>;
44 def R2 : MBlazeGPRReg< 2, "r2">, DwarfRegNum<[2]>;
45 def R3 : MBlazeGPRReg< 3, "r3">, DwarfRegNum<[3]>;
46 def R4 : MBlazeGPRReg< 4, "r4">, DwarfRegNum<[5]>;
47 def R5 : MBlazeGPRReg< 5, "r5">, DwarfRegNum<[5]>;
48 def R6 : MBlazeGPRReg< 6, "r6">, DwarfRegNum<[6]>;
49 def R7 : MBlazeGPRReg< 7, "r7">, DwarfRegNum<[7]>;
50 def R8 : MBlazeGPRReg< 8, "r8">, DwarfRegNum<[8]>;
51 def R9 : MBlazeGPRReg< 9, "r9">, DwarfRegNum<[9]>;
52 def R10 : MBlazeGPRReg< 10, "r10">, DwarfRegNum<[10]>;
53 def R11 : MBlazeGPRReg< 11, "r11">, DwarfRegNum<[11]>;
54 def R12 : MBlazeGPRReg< 12, "r12">, DwarfRegNum<[12]>;
55 def R13 : MBlazeGPRReg< 13, "r13">, DwarfRegNum<[13]>;
56 def R14 : MBlazeGPRReg< 14, "r14">, DwarfRegNum<[14]>;
57 def R15 : MBlazeGPRReg< 15, "r15">, DwarfRegNum<[15]>;
58 def R16 : MBlazeGPRReg< 16, "r16">, DwarfRegNum<[16]>;
59 def R17 : MBlazeGPRReg< 17, "r17">, DwarfRegNum<[17]>;
60 def R18 : MBlazeGPRReg< 18, "r18">, DwarfRegNum<[18]>;
61 def R19 : MBlazeGPRReg< 19, "r19">, DwarfRegNum<[19]>;
62 def R20 : MBlazeGPRReg< 20, "r20">, DwarfRegNum<[20]>;
63 def R21 : MBlazeGPRReg< 21, "r21">, DwarfRegNum<[21]>;
64 def R22 : MBlazeGPRReg< 22, "r22">, DwarfRegNum<[22]>;
65 def R23 : MBlazeGPRReg< 23, "r23">, DwarfRegNum<[23]>;
66 def R24 : MBlazeGPRReg< 24, "r24">, DwarfRegNum<[24]>;
67 def R25 : MBlazeGPRReg< 25, "r25">, DwarfRegNum<[25]>;
68 def R26 : MBlazeGPRReg< 26, "r26">, DwarfRegNum<[26]>;
69 def R27 : MBlazeGPRReg< 27, "r27">, DwarfRegNum<[27]>;
70 def R28 : MBlazeGPRReg< 28, "r28">, DwarfRegNum<[28]>;
71 def R29 : MBlazeGPRReg< 29, "r29">, DwarfRegNum<[29]>;
72 def R30 : MBlazeGPRReg< 30, "r30">, DwarfRegNum<[30]>;
73 def R31 : MBlazeGPRReg< 31, "r31">, DwarfRegNum<[31]>;
75 // Special Purpose Registers
76 def RPC : MBlazeSPRReg<0x0000, "rpc">, DwarfRegNum<[32]>;
77 def RMSR : MBlazeSPRReg<0x0001, "rmsr">, DwarfRegNum<[33]>;
78 def REAR : MBlazeSPRReg<0x0003, "rear">, DwarfRegNum<[34]>;
79 def RESR : MBlazeSPRReg<0x0005, "resr">, DwarfRegNum<[35]>;
80 def RFSR : MBlazeSPRReg<0x0007, "rfsr">, DwarfRegNum<[36]>;
81 def RBTR : MBlazeSPRReg<0x000B, "rbtr">, DwarfRegNum<[37]>;
82 def REDR : MBlazeSPRReg<0x000D, "redr">, DwarfRegNum<[38]>;
83 def RPID : MBlazeSPRReg<0x1000, "rpid">, DwarfRegNum<[39]>;
84 def RZPR : MBlazeSPRReg<0x1001, "rzpr">, DwarfRegNum<[40]>;
85 def RTLBX : MBlazeSPRReg<0x1002, "rtlbx">, DwarfRegNum<[41]>;
86 def RTLBLO : MBlazeSPRReg<0x1003, "rtlblo">, DwarfRegNum<[42]>;
87 def RTLBHI : MBlazeSPRReg<0x1004, "rtlbhi">, DwarfRegNum<[43]>;
88 def RTLBSX : MBlazeSPRReg<0x1004, "rtlbsx">, DwarfRegNum<[44]>;
89 def RPVR0 : MBlazeSPRReg<0x2000, "rpvr0">, DwarfRegNum<[45]>;
90 def RPVR1 : MBlazeSPRReg<0x2001, "rpvr1">, DwarfRegNum<[46]>;
91 def RPVR2 : MBlazeSPRReg<0x2002, "rpvr2">, DwarfRegNum<[47]>;
92 def RPVR3 : MBlazeSPRReg<0x2003, "rpvr3">, DwarfRegNum<[48]>;
93 def RPVR4 : MBlazeSPRReg<0x2004, "rpvr4">, DwarfRegNum<[49]>;
94 def RPVR5 : MBlazeSPRReg<0x2005, "rpvr5">, DwarfRegNum<[50]>;
95 def RPVR6 : MBlazeSPRReg<0x2006, "rpvr6">, DwarfRegNum<[51]>;
96 def RPVR7 : MBlazeSPRReg<0x2007, "rpvr7">, DwarfRegNum<[52]>;
97 def RPVR8 : MBlazeSPRReg<0x2008, "rpvr8">, DwarfRegNum<[53]>;
98 def RPVR9 : MBlazeSPRReg<0x2009, "rpvr9">, DwarfRegNum<[54]>;
99 def RPVR10 : MBlazeSPRReg<0x200A, "rpvr10">, DwarfRegNum<[55]>;
100 def RPVR11 : MBlazeSPRReg<0x200B, "rpvr11">, DwarfRegNum<[56]>;
102 // The carry bit. In the Microblaze this is really bit 29 of the
103 // MSR register but this is the only bit of that register that we
104 // are interested in modeling.
105 def CARRY : MBlazeSPRReg<0x0000, "rmsr[c]">, DwarfRegNum<[33]>;
108 //===----------------------------------------------------------------------===//
110 //===----------------------------------------------------------------------===//
112 def GPR : RegisterClass<"MBlaze", [i32,f32], 32,
114 // Return Values and Arguments
115 R3, R4, R5, R6, R7, R8, R9, R10,
117 // Not preserved across procedure calls
121 R20, R21, R22, R23, R24, R25, R26, R27, R28, R29, R30, R31,
125 R1, // The stack pointer
126 R2, // Read-only small data area anchor
127 R13, // Read-write small data area anchor
128 R14, // Return address for interrupts
129 R15, // Return address for sub-routines
130 R16, // Return address for trap
131 R17, // Return address for exceptions
132 R18, // Reserved for assembler
133 R19 // The frame-pointer
136 let MethodProtos = [{
137 iterator allocation_order_end(const MachineFunction &MF) const;
139 let MethodBodies = [{
141 GPRClass::allocation_order_end(const MachineFunction &MF) const {
142 // The last 10 registers on the list above are reserved
148 def SPR : RegisterClass<"MBlaze", [i32], 32,
177 let MethodProtos = [{
178 iterator allocation_order_end(const MachineFunction &MF) const;
180 let MethodBodies = [{
182 SPRClass::allocation_order_end(const MachineFunction &MF) const {
183 // None of the special purpose registers are allocatable.
189 def CRC : RegisterClass<"MBlaze", [i32], 32, [CARRY]> {