1 //===-- MBlazeBaseInfo.h - Top level definitions for MBlaze -- --*- C++ -*-===//
2 //
3 // The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 //
10 // This file contains small standalone helper functions and enum definitions for
11 // the MBlaze target useful for the compiler back-end and the MC libraries.
12 // As such, it deliberately does not include references to LLVM core
13 // code gen types, passes, etc..
14 //
15 //===----------------------------------------------------------------------===//
16
17 #ifndef MBlazeBASEINFO_H
18 #define MBlazeBASEINFO_H
19
20 #include "MBlazeMCTargetDesc.h"
21 #include "llvm/Support/ErrorHandling.h"
22
23 namespace llvm {
24
25 /// MBlazeII - This namespace holds all of the target specific flags that
26 /// instruction info tracks.
27 ///
28 namespace MBlazeII {
29 enum {
30 // PseudoFrm - This represents an instruction that is a pseudo instruction
31 // or one that has not been implemented yet. It is illegal to code generate
32 // it, but tolerated for intermediate implementation stages.
33 FPseudo = 0,
34 FRRR,
35 FRRI,
36 FCRR,
37 FCRI,
38 FRCR,
39 FRCI,
40 FCCR,
41 FCCI,
42 FRRCI,
43 FRRC,
44 FRCX,
45 FRCS,
46 FCRCS,
47 FCRCX,
48 FCX,
49 FCR,
50 FRIR,
51 FRRRR,
52 FRI,
53 FC,
54 FormMask = 63
55
56 //===------------------------------------------------------------------===//
57 // MBlaze Specific MachineOperand flags.
58 // MO_NO_FLAG,
59
60 /// MO_GOT - Represents the offset into the global offset table at which
61 /// the address the relocation entry symbol resides during execution.
62 // MO_GOT,
63
64 /// MO_GOT_CALL - Represents the offset into the global offset table at
65 /// which the address of a call site relocation entry symbol resides
66 /// during execution. This is different from the above since this flag
67 /// can only be present in call instructions.
68 // MO_GOT_CALL,
69
70 /// MO_GPREL - Represents the offset from the current gp value to be used
71 /// for the relocatable object file being produced.
72 // MO_GPREL,
73
74 /// MO_ABS_HILO - Represents the hi or low part of an absolute symbol
75 /// address.
76 // MO_ABS_HILO
77
78 };
79 }
80
isMBlazeRegister(unsigned Reg)81 static inline bool isMBlazeRegister(unsigned Reg) {
82 return Reg <= 31;
83 }
84
isSpecialMBlazeRegister(unsigned Reg)85 static inline bool isSpecialMBlazeRegister(unsigned Reg) {
86 switch (Reg) {
87 case 0x0000 : case 0x0001 : case 0x0003 : case 0x0005 :
88 case 0x0007 : case 0x000B : case 0x000D : case 0x1000 :
89 case 0x1001 : case 0x1002 : case 0x1003 : case 0x1004 :
90 case 0x2000 : case 0x2001 : case 0x2002 : case 0x2003 :
91 case 0x2004 : case 0x2005 : case 0x2006 : case 0x2007 :
92 case 0x2008 : case 0x2009 : case 0x200A : case 0x200B :
93 return true;
94
95 default:
96 return false;
97 }
98 return false; // Not reached
99 }
100
101 /// getMBlazeRegisterNumbering - Given the enum value for some register, e.g.
102 /// MBlaze::R0, return the number that it corresponds to (e.g. 0).
getMBlazeRegisterNumbering(unsigned RegEnum)103 static inline unsigned getMBlazeRegisterNumbering(unsigned RegEnum) {
104 switch (RegEnum) {
105 case MBlaze::R0 : return 0;
106 case MBlaze::R1 : return 1;
107 case MBlaze::R2 : return 2;
108 case MBlaze::R3 : return 3;
109 case MBlaze::R4 : return 4;
110 case MBlaze::R5 : return 5;
111 case MBlaze::R6 : return 6;
112 case MBlaze::R7 : return 7;
113 case MBlaze::R8 : return 8;
114 case MBlaze::R9 : return 9;
115 case MBlaze::R10 : return 10;
116 case MBlaze::R11 : return 11;
117 case MBlaze::R12 : return 12;
118 case MBlaze::R13 : return 13;
119 case MBlaze::R14 : return 14;
120 case MBlaze::R15 : return 15;
121 case MBlaze::R16 : return 16;
122 case MBlaze::R17 : return 17;
123 case MBlaze::R18 : return 18;
124 case MBlaze::R19 : return 19;
125 case MBlaze::R20 : return 20;
126 case MBlaze::R21 : return 21;
127 case MBlaze::R22 : return 22;
128 case MBlaze::R23 : return 23;
129 case MBlaze::R24 : return 24;
130 case MBlaze::R25 : return 25;
131 case MBlaze::R26 : return 26;
132 case MBlaze::R27 : return 27;
133 case MBlaze::R28 : return 28;
134 case MBlaze::R29 : return 29;
135 case MBlaze::R30 : return 30;
136 case MBlaze::R31 : return 31;
137 case MBlaze::RPC : return 0x0000;
138 case MBlaze::RMSR : return 0x0001;
139 case MBlaze::REAR : return 0x0003;
140 case MBlaze::RESR : return 0x0005;
141 case MBlaze::RFSR : return 0x0007;
142 case MBlaze::RBTR : return 0x000B;
143 case MBlaze::REDR : return 0x000D;
144 case MBlaze::RPID : return 0x1000;
145 case MBlaze::RZPR : return 0x1001;
146 case MBlaze::RTLBX : return 0x1002;
147 case MBlaze::RTLBLO : return 0x1003;
148 case MBlaze::RTLBHI : return 0x1004;
149 case MBlaze::RPVR0 : return 0x2000;
150 case MBlaze::RPVR1 : return 0x2001;
151 case MBlaze::RPVR2 : return 0x2002;
152 case MBlaze::RPVR3 : return 0x2003;
153 case MBlaze::RPVR4 : return 0x2004;
154 case MBlaze::RPVR5 : return 0x2005;
155 case MBlaze::RPVR6 : return 0x2006;
156 case MBlaze::RPVR7 : return 0x2007;
157 case MBlaze::RPVR8 : return 0x2008;
158 case MBlaze::RPVR9 : return 0x2009;
159 case MBlaze::RPVR10 : return 0x200A;
160 case MBlaze::RPVR11 : return 0x200B;
161 default: llvm_unreachable("Unknown register number!");
162 }
163 return 0; // Not reached
164 }
165
166 /// getRegisterFromNumbering - Given the enum value for some register, e.g.
167 /// MBlaze::R0, return the number that it corresponds to (e.g. 0).
getMBlazeRegisterFromNumbering(unsigned Reg)168 static inline unsigned getMBlazeRegisterFromNumbering(unsigned Reg) {
169 switch (Reg) {
170 case 0 : return MBlaze::R0;
171 case 1 : return MBlaze::R1;
172 case 2 : return MBlaze::R2;
173 case 3 : return MBlaze::R3;
174 case 4 : return MBlaze::R4;
175 case 5 : return MBlaze::R5;
176 case 6 : return MBlaze::R6;
177 case 7 : return MBlaze::R7;
178 case 8 : return MBlaze::R8;
179 case 9 : return MBlaze::R9;
180 case 10 : return MBlaze::R10;
181 case 11 : return MBlaze::R11;
182 case 12 : return MBlaze::R12;
183 case 13 : return MBlaze::R13;
184 case 14 : return MBlaze::R14;
185 case 15 : return MBlaze::R15;
186 case 16 : return MBlaze::R16;
187 case 17 : return MBlaze::R17;
188 case 18 : return MBlaze::R18;
189 case 19 : return MBlaze::R19;
190 case 20 : return MBlaze::R20;
191 case 21 : return MBlaze::R21;
192 case 22 : return MBlaze::R22;
193 case 23 : return MBlaze::R23;
194 case 24 : return MBlaze::R24;
195 case 25 : return MBlaze::R25;
196 case 26 : return MBlaze::R26;
197 case 27 : return MBlaze::R27;
198 case 28 : return MBlaze::R28;
199 case 29 : return MBlaze::R29;
200 case 30 : return MBlaze::R30;
201 case 31 : return MBlaze::R31;
202 default: llvm_unreachable("Unknown register number!");
203 }
204 return 0; // Not reached
205 }
206
getSpecialMBlazeRegisterFromNumbering(unsigned Reg)207 static inline unsigned getSpecialMBlazeRegisterFromNumbering(unsigned Reg) {
208 switch (Reg) {
209 case 0x0000 : return MBlaze::RPC;
210 case 0x0001 : return MBlaze::RMSR;
211 case 0x0003 : return MBlaze::REAR;
212 case 0x0005 : return MBlaze::RESR;
213 case 0x0007 : return MBlaze::RFSR;
214 case 0x000B : return MBlaze::RBTR;
215 case 0x000D : return MBlaze::REDR;
216 case 0x1000 : return MBlaze::RPID;
217 case 0x1001 : return MBlaze::RZPR;
218 case 0x1002 : return MBlaze::RTLBX;
219 case 0x1003 : return MBlaze::RTLBLO;
220 case 0x1004 : return MBlaze::RTLBHI;
221 case 0x2000 : return MBlaze::RPVR0;
222 case 0x2001 : return MBlaze::RPVR1;
223 case 0x2002 : return MBlaze::RPVR2;
224 case 0x2003 : return MBlaze::RPVR3;
225 case 0x2004 : return MBlaze::RPVR4;
226 case 0x2005 : return MBlaze::RPVR5;
227 case 0x2006 : return MBlaze::RPVR6;
228 case 0x2007 : return MBlaze::RPVR7;
229 case 0x2008 : return MBlaze::RPVR8;
230 case 0x2009 : return MBlaze::RPVR9;
231 case 0x200A : return MBlaze::RPVR10;
232 case 0x200B : return MBlaze::RPVR11;
233 default: llvm_unreachable("Unknown register number!");
234 }
235 return 0; // Not reached
236 }
237
238 } // end namespace llvm;
239
240 #endif
241