1 //===- SystemZRegisterInfo.td - The PowerPC Register File ------*- 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 //===----------------------------------------------------------------------===//
11 //===----------------------------------------------------------------------===//
13 class SystemZReg<string n> : Register<n> {
14 let Namespace = "SystemZ";
17 class SystemZRegWithSubregs<string n, list<Register> subregs>
18 : RegisterWithSubRegs<n, subregs> {
19 let Namespace = "SystemZ";
22 // We identify all our registers with a 4-bit ID, for consistency's sake.
24 // GPR32 - Lower 32 bits of one of the 16 64-bit general-purpose registers
25 class GPR32<bits<4> num, string n> : SystemZReg<n> {
26 field bits<4> Num = num;
29 // GPR64 - One of the 16 64-bit general-purpose registers
30 class GPR64<bits<4> num, string n, list<Register> subregs,
31 list<Register> aliases = []>
32 : SystemZRegWithSubregs<n, subregs> {
33 field bits<4> Num = num;
34 let Aliases = aliases;
37 // GPR128 - 8 even-odd register pairs
38 class GPR128<bits<4> num, string n, list<Register> subregs,
39 list<Register> aliases = []>
40 : SystemZRegWithSubregs<n, subregs> {
41 field bits<4> Num = num;
42 let Aliases = aliases;
45 // FPRS - Lower 32 bits of one of the 16 64-bit floating-point registers
46 class FPRS<bits<4> num, string n> : SystemZReg<n> {
47 field bits<4> Num = num;
50 // FPRL - One of the 16 64-bit floating-point registers
51 class FPRL<bits<4> num, string n, list<Register> subregs>
52 : SystemZRegWithSubregs<n, subregs> {
53 field bits<4> Num = num;
56 // General-purpose registers
57 def R0W : GPR32< 0, "r0">, DwarfRegNum<[0]>;
58 def R1W : GPR32< 1, "r1">, DwarfRegNum<[1]>;
59 def R2W : GPR32< 2, "r2">, DwarfRegNum<[2]>;
60 def R3W : GPR32< 3, "r3">, DwarfRegNum<[3]>;
61 def R4W : GPR32< 4, "r4">, DwarfRegNum<[4]>;
62 def R5W : GPR32< 5, "r5">, DwarfRegNum<[5]>;
63 def R6W : GPR32< 6, "r6">, DwarfRegNum<[6]>;
64 def R7W : GPR32< 7, "r7">, DwarfRegNum<[7]>;
65 def R8W : GPR32< 8, "r8">, DwarfRegNum<[8]>;
66 def R9W : GPR32< 9, "r9">, DwarfRegNum<[9]>;
67 def R10W : GPR32<10, "r10">, DwarfRegNum<[10]>;
68 def R11W : GPR32<11, "r11">, DwarfRegNum<[11]>;
69 def R12W : GPR32<12, "r12">, DwarfRegNum<[12]>;
70 def R13W : GPR32<13, "r13">, DwarfRegNum<[13]>;
71 def R14W : GPR32<14, "r14">, DwarfRegNum<[14]>;
72 def R15W : GPR32<15, "r15">, DwarfRegNum<[15]>;
74 def R0D : GPR64< 0, "r0", [R0W]>, DwarfRegNum<[0]>;
75 def R1D : GPR64< 1, "r1", [R1W]>, DwarfRegNum<[1]>;
76 def R2D : GPR64< 2, "r2", [R2W]>, DwarfRegNum<[2]>;
77 def R3D : GPR64< 3, "r3", [R3W]>, DwarfRegNum<[3]>;
78 def R4D : GPR64< 4, "r4", [R4W]>, DwarfRegNum<[4]>;
79 def R5D : GPR64< 5, "r5", [R5W]>, DwarfRegNum<[5]>;
80 def R6D : GPR64< 6, "r6", [R6W]>, DwarfRegNum<[6]>;
81 def R7D : GPR64< 7, "r7", [R7W]>, DwarfRegNum<[7]>;
82 def R8D : GPR64< 8, "r8", [R8W]>, DwarfRegNum<[8]>;
83 def R9D : GPR64< 9, "r9", [R9W]>, DwarfRegNum<[9]>;
84 def R10D : GPR64<10, "r10", [R10W]>, DwarfRegNum<[10]>;
85 def R11D : GPR64<11, "r11", [R11W]>, DwarfRegNum<[11]>;
86 def R12D : GPR64<12, "r12", [R12W]>, DwarfRegNum<[12]>;
87 def R13D : GPR64<13, "r13", [R13W]>, DwarfRegNum<[13]>;
88 def R14D : GPR64<14, "r14", [R14W]>, DwarfRegNum<[14]>;
89 def R15D : GPR64<15, "r15", [R15W]>, DwarfRegNum<[15]>;
92 def R0P : GPR64< 0, "r0", [R0W, R1W], [R0D, R1D]>, DwarfRegNum<[0]>;
93 def R2P : GPR64< 2, "r2", [R2W, R3W], [R2D, R3D]>, DwarfRegNum<[2]>;
94 def R4P : GPR64< 4, "r4", [R4W, R5W], [R4D, R5D]>, DwarfRegNum<[4]>;
95 def R6P : GPR64< 6, "r6", [R6W, R7W], [R6D, R7D]>, DwarfRegNum<[6]>;
96 def R8P : GPR64< 8, "r8", [R8W, R9W], [R8D, R9D]>, DwarfRegNum<[8]>;
97 def R10P : GPR64<10, "r10", [R10W, R11W], [R10D, R11D]>, DwarfRegNum<[10]>;
98 def R12P : GPR64<12, "r12", [R12W, R13W], [R12D, R13D]>, DwarfRegNum<[12]>;
99 def R14P : GPR64<14, "r14", [R14W, R15W], [R14D, R15D]>, DwarfRegNum<[14]>;
101 def R0Q : GPR128< 0, "r0", [R0D, R1D], [R0P]>, DwarfRegNum<[0]>;
102 def R2Q : GPR128< 2, "r2", [R2D, R3D], [R2P]>, DwarfRegNum<[2]>;
103 def R4Q : GPR128< 4, "r4", [R4D, R5D], [R4P]>, DwarfRegNum<[4]>;
104 def R6Q : GPR128< 6, "r6", [R6D, R7D], [R6P]>, DwarfRegNum<[6]>;
105 def R8Q : GPR128< 8, "r8", [R8D, R9D], [R8P]>, DwarfRegNum<[8]>;
106 def R10Q : GPR128<10, "r10", [R10D, R11D], [R10P]>, DwarfRegNum<[10]>;
107 def R12Q : GPR128<12, "r12", [R12D, R13D], [R12P]>, DwarfRegNum<[12]>;
108 def R14Q : GPR128<14, "r14", [R14D, R15D], [R14P]>, DwarfRegNum<[14]>;
110 // Floating-point registers
111 def F0S : FPRS< 0, "f0">, DwarfRegNum<[16]>;
112 def F1S : FPRS< 1, "f1">, DwarfRegNum<[17]>;
113 def F2S : FPRS< 2, "f2">, DwarfRegNum<[18]>;
114 def F3S : FPRS< 3, "f3">, DwarfRegNum<[19]>;
115 def F4S : FPRS< 4, "f4">, DwarfRegNum<[20]>;
116 def F5S : FPRS< 5, "f5">, DwarfRegNum<[21]>;
117 def F6S : FPRS< 6, "f6">, DwarfRegNum<[22]>;
118 def F7S : FPRS< 7, "f7">, DwarfRegNum<[23]>;
119 def F8S : FPRS< 8, "f8">, DwarfRegNum<[24]>;
120 def F9S : FPRS< 9, "f9">, DwarfRegNum<[25]>;
121 def F10S : FPRS<10, "f10">, DwarfRegNum<[26]>;
122 def F11S : FPRS<11, "f11">, DwarfRegNum<[27]>;
123 def F12S : FPRS<12, "f12">, DwarfRegNum<[28]>;
124 def F13S : FPRS<13, "f13">, DwarfRegNum<[29]>;
125 def F14S : FPRS<14, "f14">, DwarfRegNum<[30]>;
126 def F15S : FPRS<15, "f15">, DwarfRegNum<[31]>;
128 def F0L : FPRL< 0, "f0", [F0S]>, DwarfRegNum<[16]>;
129 def F1L : FPRL< 1, "f1", [F1S]>, DwarfRegNum<[17]>;
130 def F2L : FPRL< 2, "f2", [F2S]>, DwarfRegNum<[18]>;
131 def F3L : FPRL< 3, "f3", [F3S]>, DwarfRegNum<[19]>;
132 def F4L : FPRL< 4, "f4", [F4S]>, DwarfRegNum<[20]>;
133 def F5L : FPRL< 5, "f5", [F5S]>, DwarfRegNum<[21]>;
134 def F6L : FPRL< 6, "f6", [F6S]>, DwarfRegNum<[22]>;
135 def F7L : FPRL< 7, "f7", [F7S]>, DwarfRegNum<[23]>;
136 def F8L : FPRL< 8, "f8", [F8S]>, DwarfRegNum<[24]>;
137 def F9L : FPRL< 9, "f9", [F9S]>, DwarfRegNum<[25]>;
138 def F10L : FPRL<10, "f10", [F10S]>, DwarfRegNum<[26]>;
139 def F11L : FPRL<11, "f11", [F11S]>, DwarfRegNum<[27]>;
140 def F12L : FPRL<12, "f12", [F12S]>, DwarfRegNum<[28]>;
141 def F13L : FPRL<13, "f13", [F13S]>, DwarfRegNum<[29]>;
142 def F14L : FPRL<14, "f14", [F14S]>, DwarfRegNum<[30]>;
143 def F15L : FPRL<15, "f15", [F15S]>, DwarfRegNum<[31]>;
146 def PSW : SystemZReg<"psw">;
148 def subreg_32bit : PatLeaf<(i32 1)>;
149 def subreg_even32 : PatLeaf<(i32 1)>;
150 def subreg_odd32 : PatLeaf<(i32 2)>;
151 def subreg_even : PatLeaf<(i32 3)>;
152 def subreg_odd : PatLeaf<(i32 4)>;
154 def : SubRegSet<1, [R0D, R1D, R2D, R3D, R4D, R5D, R6D, R7D,
155 R8D, R9D, R10D, R11D, R12D, R13D, R14D, R15D],
156 [R0W, R1W, R2W, R3W, R4W, R5W, R6W, R7W,
157 R8W, R9W, R10W, R11W, R12W, R13W, R14W, R15W]>;
159 def : SubRegSet<3, [R0Q, R2Q, R4Q, R6Q, R8Q, R10Q, R12Q, R14Q],
160 [R0D, R2D, R4D, R6D, R8D, R10D, R12D, R14D]>;
162 def : SubRegSet<4, [R0Q, R2Q, R4Q, R6Q, R8Q, R10Q, R12Q, R14Q],
163 [R1D, R3D, R5D, R7D, R9D, R11D, R13D, R15D]>;
165 def : SubRegSet<1, [R0P, R2P, R4P, R6P, R8P, R10P, R12P, R14P],
166 [R0W, R2W, R4W, R6W, R8W, R10W, R12W, R14W]>;
168 def : SubRegSet<2, [R0P, R2P, R4P, R6P, R8P, R10P, R12P, R14P],
169 [R1W, R3W, R5W, R7W, R9W, R11W, R13W, R15W]>;
171 def : SubRegSet<1, [R0Q, R2Q, R4Q, R6Q, R8Q, R10Q, R12Q, R14Q],
172 [R0W, R2W, R4W, R6W, R8W, R10W, R12W, R14W]>;
174 def : SubRegSet<2, [R0Q, R2Q, R4Q, R6Q, R8Q, R10Q, R12Q, R14Q],
175 [R1W, R3W, R5W, R7W, R9W, R11W, R13W, R15W]>;
178 def GR32 : RegisterClass<"SystemZ", [i32], 32,
179 // Volatile registers
180 [R0W, R1W, R2W, R3W, R4W, R5W, R6W, R7W, R8W, R9W, R10W, R12W, R13W,
181 // Frame pointer, sometimes allocable
183 // Volatile, but not allocable
186 let MethodProtos = [{
187 iterator allocation_order_begin(const MachineFunction &MF) const;
188 iterator allocation_order_end(const MachineFunction &MF) const;
190 let MethodBodies = [{
191 static const unsigned SystemZ_REG32[] = {
192 SystemZ::R1W, SystemZ::R2W, SystemZ::R3W, SystemZ::R4W,
193 SystemZ::R5W, SystemZ::R0W, SystemZ::R12W, SystemZ::R11W,
194 SystemZ::R10W, SystemZ::R9W, SystemZ::R8W, SystemZ::R7W,
195 SystemZ::R6W, SystemZ::R14W, SystemZ::R13W
197 static const unsigned SystemZ_REG32_nofp[] = {
198 SystemZ::R1W, SystemZ::R2W, SystemZ::R3W, SystemZ::R4W,
199 SystemZ::R5W, SystemZ::R0W, SystemZ::R12W, /* No R11W */
200 SystemZ::R10W, SystemZ::R9W, SystemZ::R8W, SystemZ::R7W,
201 SystemZ::R6W, SystemZ::R14W, SystemZ::R13W
204 GR32Class::allocation_order_begin(const MachineFunction &MF) const {
205 const TargetMachine &TM = MF.getTarget();
206 const TargetRegisterInfo *RI = TM.getRegisterInfo();
208 return SystemZ_REG32_nofp;
210 return SystemZ_REG32;
213 GR32Class::allocation_order_end(const MachineFunction &MF) const {
214 const TargetMachine &TM = MF.getTarget();
215 const TargetRegisterInfo *RI = TM.getRegisterInfo();
217 return SystemZ_REG32_nofp + (sizeof(SystemZ_REG32_nofp) / sizeof(unsigned));
219 return SystemZ_REG32 + (sizeof(SystemZ_REG32) / sizeof(unsigned));
224 /// Registers used to generate address. Everything except R0.
225 def ADDR32 : RegisterClass<"SystemZ", [i32], 32,
226 // Volatile registers
227 [R1W, R2W, R3W, R4W, R5W, R6W, R7W, R8W, R9W, R10W, R12W, R13W,
228 // Frame pointer, sometimes allocable
230 // Volatile, but not allocable
233 let MethodProtos = [{
234 iterator allocation_order_begin(const MachineFunction &MF) const;
235 iterator allocation_order_end(const MachineFunction &MF) const;
237 let MethodBodies = [{
238 static const unsigned SystemZ_ADDR32[] = {
239 SystemZ::R1W, SystemZ::R2W, SystemZ::R3W, SystemZ::R4W,
240 SystemZ::R5W, /* No R0W */ SystemZ::R12W, SystemZ::R11W,
241 SystemZ::R10W, SystemZ::R9W, SystemZ::R8W, SystemZ::R7W,
242 SystemZ::R6W, SystemZ::R14W, SystemZ::R13W
244 static const unsigned SystemZ_ADDR32_nofp[] = {
245 SystemZ::R1W, SystemZ::R2W, SystemZ::R3W, SystemZ::R4W,
246 SystemZ::R5W, /* No R0W */ SystemZ::R12W, /* No R11W */
247 SystemZ::R10W, SystemZ::R9W, SystemZ::R8W, SystemZ::R7W,
248 SystemZ::R6W, SystemZ::R14W, SystemZ::R13W
250 ADDR32Class::iterator
251 ADDR32Class::allocation_order_begin(const MachineFunction &MF) const {
252 const TargetMachine &TM = MF.getTarget();
253 const TargetRegisterInfo *RI = TM.getRegisterInfo();
255 return SystemZ_ADDR32_nofp;
257 return SystemZ_ADDR32;
259 ADDR32Class::iterator
260 ADDR32Class::allocation_order_end(const MachineFunction &MF) const {
261 const TargetMachine &TM = MF.getTarget();
262 const TargetRegisterInfo *RI = TM.getRegisterInfo();
264 return SystemZ_ADDR32_nofp + (sizeof(SystemZ_ADDR32_nofp) / sizeof(unsigned));
266 return SystemZ_ADDR32 + (sizeof(SystemZ_ADDR32) / sizeof(unsigned));
271 def GR64 : RegisterClass<"SystemZ", [i64], 64,
272 // Volatile registers
273 [R0D, R1D, R2D, R3D, R4D, R5D, R6D, R7D, R8D, R9D, R10D, R12D, R13D,
274 // Frame pointer, sometimes allocable
276 // Volatile, but not allocable
279 let SubRegClassList = [GR32];
280 let MethodProtos = [{
281 iterator allocation_order_begin(const MachineFunction &MF) const;
282 iterator allocation_order_end(const MachineFunction &MF) const;
284 let MethodBodies = [{
285 static const unsigned SystemZ_REG64[] = {
286 SystemZ::R1D, SystemZ::R2D, SystemZ::R3D, SystemZ::R4D,
287 SystemZ::R5D, SystemZ::R0D, SystemZ::R12D, SystemZ::R11D,
288 SystemZ::R10D, SystemZ::R9D, SystemZ::R8D, SystemZ::R7D,
289 SystemZ::R6D, SystemZ::R14D, SystemZ::R13D
291 static const unsigned SystemZ_REG64_nofp[] = {
292 SystemZ::R1D, SystemZ::R2D, SystemZ::R3D, SystemZ::R4D,
293 SystemZ::R5D, SystemZ::R0D, SystemZ::R12D, /* No R11D */
294 SystemZ::R10D, SystemZ::R9D, SystemZ::R8D, SystemZ::R7D,
295 SystemZ::R6D, SystemZ::R14D, SystemZ::R13D
298 GR64Class::allocation_order_begin(const MachineFunction &MF) const {
299 const TargetMachine &TM = MF.getTarget();
300 const TargetRegisterInfo *RI = TM.getRegisterInfo();
302 return SystemZ_REG64_nofp;
304 return SystemZ_REG64;
307 GR64Class::allocation_order_end(const MachineFunction &MF) const {
308 const TargetMachine &TM = MF.getTarget();
309 const TargetRegisterInfo *RI = TM.getRegisterInfo();
311 return SystemZ_REG64_nofp + (sizeof(SystemZ_REG64_nofp) / sizeof(unsigned));
313 return SystemZ_REG64 + (sizeof(SystemZ_REG64) / sizeof(unsigned));
318 def ADDR64 : RegisterClass<"SystemZ", [i64], 64,
319 // Volatile registers
320 [R1D, R2D, R3D, R4D, R5D, R6D, R7D, R8D, R9D, R10D, R12D, R13D,
321 // Frame pointer, sometimes allocable
323 // Volatile, but not allocable
326 let SubRegClassList = [ADDR32];
327 let MethodProtos = [{
328 iterator allocation_order_begin(const MachineFunction &MF) const;
329 iterator allocation_order_end(const MachineFunction &MF) const;
331 let MethodBodies = [{
332 static const unsigned SystemZ_ADDR64[] = {
333 SystemZ::R1D, SystemZ::R2D, SystemZ::R3D, SystemZ::R4D,
334 SystemZ::R5D, /* No R0D */ SystemZ::R12D, SystemZ::R11D,
335 SystemZ::R10D, SystemZ::R9D, SystemZ::R8D, SystemZ::R7D,
336 SystemZ::R6D, SystemZ::R14D, SystemZ::R13D
338 static const unsigned SystemZ_ADDR64_nofp[] = {
339 SystemZ::R1D, SystemZ::R2D, SystemZ::R3D, SystemZ::R4D,
340 SystemZ::R5D, /* No R0D */ SystemZ::R12D, /* No R11D */
341 SystemZ::R10D, SystemZ::R9D, SystemZ::R8D, SystemZ::R7D,
342 SystemZ::R6D, SystemZ::R14D, SystemZ::R13D
344 ADDR64Class::iterator
345 ADDR64Class::allocation_order_begin(const MachineFunction &MF) const {
346 const TargetMachine &TM = MF.getTarget();
347 const TargetRegisterInfo *RI = TM.getRegisterInfo();
349 return SystemZ_ADDR64_nofp;
351 return SystemZ_ADDR64;
353 ADDR64Class::iterator
354 ADDR64Class::allocation_order_end(const MachineFunction &MF) const {
355 const TargetMachine &TM = MF.getTarget();
356 const TargetRegisterInfo *RI = TM.getRegisterInfo();
358 return SystemZ_ADDR64_nofp + (sizeof(SystemZ_ADDR64_nofp) / sizeof(unsigned));
360 return SystemZ_ADDR64 + (sizeof(SystemZ_ADDR64) / sizeof(unsigned));
365 // Even-odd register pairs
366 def GR64P : RegisterClass<"SystemZ", [v2i32], 64,
367 [R0P, R2P, R4P, R6P, R8P, R10P, R12P, R14P]>
369 let SubRegClassList = [GR32, GR32];
370 let MethodProtos = [{
371 iterator allocation_order_begin(const MachineFunction &MF) const;
372 iterator allocation_order_end(const MachineFunction &MF) const;
374 let MethodBodies = [{
375 static const unsigned SystemZ_REG64P[] = {
376 SystemZ::R0P, SystemZ::R2P, SystemZ::R4P, SystemZ::R10P,
377 SystemZ::R8P, SystemZ::R6P };
378 static const unsigned SystemZ_REG64P_nofp[] = {
379 SystemZ::R0P, SystemZ::R2P, SystemZ::R4P, /* NO R10P */
380 SystemZ::R8P, SystemZ::R6P };
382 GR64PClass::allocation_order_begin(const MachineFunction &MF) const {
383 const TargetMachine &TM = MF.getTarget();
384 const TargetRegisterInfo *RI = TM.getRegisterInfo();
386 return SystemZ_REG64P_nofp;
388 return SystemZ_REG64P;
391 GR64PClass::allocation_order_end(const MachineFunction &MF) const {
392 const TargetMachine &TM = MF.getTarget();
393 const TargetRegisterInfo *RI = TM.getRegisterInfo();
395 return SystemZ_REG64P_nofp + (sizeof(SystemZ_REG64P_nofp) / sizeof(unsigned));
397 return SystemZ_REG64P + (sizeof(SystemZ_REG64P) / sizeof(unsigned));
402 def GR128 : RegisterClass<"SystemZ", [v2i64], 128,
403 [R0Q, R2Q, R4Q, R6Q, R8Q, R10Q, R12Q, R14Q]>
405 let SubRegClassList = [GR32, GR32, GR64, GR64];
406 let MethodProtos = [{
407 iterator allocation_order_begin(const MachineFunction &MF) const;
408 iterator allocation_order_end(const MachineFunction &MF) const;
410 let MethodBodies = [{
411 static const unsigned SystemZ_REG128[] = {
412 SystemZ::R0Q, SystemZ::R2Q, SystemZ::R4Q, SystemZ::R10Q,
413 SystemZ::R8Q, SystemZ::R6Q };
414 static const unsigned SystemZ_REG128_nofp[] = {
415 SystemZ::R0Q, SystemZ::R2Q, SystemZ::R4Q, /* NO R10Q */
416 SystemZ::R8Q, SystemZ::R6Q };
418 GR128Class::allocation_order_begin(const MachineFunction &MF) const {
419 const TargetMachine &TM = MF.getTarget();
420 const TargetRegisterInfo *RI = TM.getRegisterInfo();
422 return SystemZ_REG128_nofp;
424 return SystemZ_REG128;
427 GR128Class::allocation_order_end(const MachineFunction &MF) const {
428 const TargetMachine &TM = MF.getTarget();
429 const TargetRegisterInfo *RI = TM.getRegisterInfo();
431 return SystemZ_REG128_nofp + (sizeof(SystemZ_REG128_nofp) / sizeof(unsigned));
433 return SystemZ_REG128 + (sizeof(SystemZ_REG128) / sizeof(unsigned));
438 def FP32 : RegisterClass<"SystemZ", [f32], 32,
439 [F0S, F1S, F2S, F3S, F4S, F5S, F6S, F7S,
440 F8S, F9S, F10S, F11S, F12S, F13S, F14S, F15S]> {
441 let MethodProtos = [{
442 iterator allocation_order_begin(const MachineFunction &MF) const;
443 iterator allocation_order_end(const MachineFunction &MF) const;
445 let MethodBodies = [{
446 static const unsigned SystemZ_REGFP32[] = {
447 SystemZ::F0S, SystemZ::F2S, SystemZ::F4S, SystemZ::F6S,
448 SystemZ::F1S, SystemZ::F3S, SystemZ::F5S, SystemZ::F7S,
449 SystemZ::F8S, SystemZ::F9S, SystemZ::F10S, SystemZ::F11S,
450 SystemZ::F12S, SystemZ::F13S, SystemZ::F14S, SystemZ::F15S };
452 FP32Class::allocation_order_begin(const MachineFunction &MF) const {
453 return SystemZ_REGFP32;
456 FP32Class::allocation_order_end(const MachineFunction &MF) const {
457 return SystemZ_REGFP32 + (sizeof(SystemZ_REGFP32) / sizeof(unsigned));
462 def FP64 : RegisterClass<"SystemZ", [f64], 64,
463 [F0L, F1L, F2L, F3L, F4L, F5L, F6L, F7L,
464 F8L, F9L, F10L, F11L, F12L, F13L, F14L, F15L]> {
465 let SubRegClassList = [FP32];
466 let MethodProtos = [{
467 iterator allocation_order_begin(const MachineFunction &MF) const;
468 iterator allocation_order_end(const MachineFunction &MF) const;
470 let MethodBodies = [{
471 static const unsigned SystemZ_REGFP64[] = {
472 SystemZ::F0L, SystemZ::F2L, SystemZ::F4L, SystemZ::F6L,
473 SystemZ::F1L, SystemZ::F3L, SystemZ::F5L, SystemZ::F7L,
474 SystemZ::F8L, SystemZ::F9L, SystemZ::F10L, SystemZ::F11L,
475 SystemZ::F12L, SystemZ::F13L, SystemZ::F14L, SystemZ::F15L };
477 FP64Class::allocation_order_begin(const MachineFunction &MF) const {
478 return SystemZ_REGFP64;
481 FP64Class::allocation_order_end(const MachineFunction &MF) const {
482 return SystemZ_REGFP64 + (sizeof(SystemZ_REGFP64) / sizeof(unsigned));
487 // Status flags registers.
488 def CCR : RegisterClass<"SystemZ", [i64], 64, [PSW]> {
489 let CopyCost = -1; // Don't allow copying of status registers.