1 //===- PowerPCInstrFormats.td - PowerPC Instruction Formats --*- tablegen -*-=//
3 // The LLVM Compiler Infrastructure
5 // This file was developed by the LLVM research group and is distributed under
6 // the University of Illinois Open Source License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
11 //===----------------------------------------------------------------------===//
13 class Format<bits<5> val> {
17 def Pseudo: Format<0>;
20 def Simm16 : Format<3>;
21 def PCRelimm24 : Format<5>;
22 def Imm24 : Format<6>;
24 def PCRelimm14 : Format<8>;
25 def Imm14 : Format<9>;
26 def Imm2 : Format<10>;
28 def Imm3 : Format<12>;
29 def Imm1 : Format<13>;
31 def Imm4 : Format<15>;
32 def Imm8 : Format<16>;
33 def Disimm16 : Format<17>;
34 def Disimm14 : Format<18>;
37 def Imm15 : Format<21>;
39 def Imm6 : Format<23>;
41 //===----------------------------------------------------------------------===//
43 // PowerPC instruction formats
45 class I<bits<6> opcode, dag OL, string asmstr> : Instruction {
48 bit PPC64 = 0; // Default value, override with isPPC64
49 bit VMX = 0; // Default value, override with isVMX
52 let Namespace = "PPC";
53 let Inst{0-5} = opcode;
55 let AsmString = asmstr;
59 class IForm<bits<6> opcode, bit aa, bit lk, dag OL, string asmstr>
60 : I<opcode, OL, asmstr> {
69 class BForm<bits<6> opcode, bit aa, bit lk, bits<5> bo, bits<2> bicode, dag OL,
71 : I<opcode, OL, asmstr> {
77 let Inst{14-15} = bicode;
84 class DForm_base<bits<6> opcode, dag OL, string asmstr> : I<opcode, OL, asmstr>{
94 class DForm_1<bits<6> opcode, dag OL, string asmstr> : I<opcode, OL, asmstr> {
104 class DForm_2<bits<6> opcode, dag OL, string asmstr>
105 : DForm_base<opcode, OL, asmstr>;
107 class DForm_2_r0<bits<6> opcode, dag OL, string asmstr>
108 : I<opcode, OL, asmstr> {
117 // Currently we make the use/def reg distinction in ISel, not tablegen
118 class DForm_3<bits<6> opcode, dag OL, string asmstr>
119 : DForm_1<opcode, OL, asmstr>;
121 class DForm_4<bits<6> opcode, dag OL, string asmstr> : I<opcode, OL, asmstr> {
131 class DForm_4_zero<bits<6> opcode, dag OL, string asmstr>
132 : DForm_1<opcode, OL, asmstr> {
138 class DForm_5<bits<6> opcode, dag OL, string asmstr> : I<opcode, OL, asmstr> {
147 let Inst{11-15} = RA;
151 class DForm_5_ext<bits<6> opcode, dag OL, string asmstr>
152 : DForm_5<opcode, OL, asmstr> {
156 class DForm_6<bits<6> opcode, dag OL, string asmstr>
157 : DForm_5<opcode, OL, asmstr>;
159 class DForm_6_ext<bits<6> opcode, dag OL, string asmstr>
160 : DForm_6<opcode, OL, asmstr> {
164 class DForm_8<bits<6> opcode, dag OL, string asmstr>
165 : DForm_1<opcode, OL, asmstr> {
168 class DForm_9<bits<6> opcode, dag OL, string asmstr>
169 : DForm_1<opcode, OL, asmstr> {
173 class DSForm_1<bits<6> opcode, bits<2> xo, dag OL, string asmstr>
174 : I<opcode, OL, asmstr> {
179 let Inst{6-10} = RST;
180 let Inst{11-15} = RA;
181 let Inst{16-29} = DS;
182 let Inst{30-31} = xo;
185 class DSForm_2<bits<6> opcode, bits<2> xo, dag OL, string asmstr>
186 : DSForm_1<opcode, xo, OL, asmstr>;
189 class XForm_base_r3xo<bits<6> opcode, bits<10> xo,
190 dag OL, string asmstr> : I<opcode, OL, asmstr> {
195 bit RC = 0; // set by isDOT
197 let Inst{6-10} = RST;
200 let Inst{21-30} = xo;
204 // This is the same as XForm_base_r3xo, but the first two operands are swapped
205 // when code is emitted.
206 class XForm_base_r3xo_swapped
207 <bits<6> opcode, bits<10> xo, dag OL, string asmstr>
208 : I<opcode, OL, asmstr> {
213 bit RC = 0; // set by isDOT
215 let Inst{6-10} = RST;
218 let Inst{21-30} = xo;
223 class XForm_1<bits<6> opcode, bits<10> xo, dag OL, string asmstr>
224 : XForm_base_r3xo<opcode, xo, OL, asmstr>;
226 class XForm_6<bits<6> opcode, bits<10> xo, dag OL, string asmstr,
228 : XForm_base_r3xo_swapped<opcode, xo, OL, asmstr> {
229 let Pattern = pattern;
232 class XForm_8<bits<6> opcode, bits<10> xo, dag OL, string asmstr>
233 : XForm_base_r3xo<opcode, xo, OL, asmstr>;
235 class XForm_10<bits<6> opcode, bits<10> xo, dag OL, string asmstr>
236 : XForm_base_r3xo_swapped<opcode, xo, OL, asmstr> {
239 class XForm_11<bits<6> opcode, bits<10> xo, dag OL, string asmstr,
241 : XForm_base_r3xo_swapped<opcode, xo, OL, asmstr> {
243 let Pattern = pattern;
246 class XForm_16<bits<6> opcode, bits<10> xo, dag OL, string asmstr>
247 : I<opcode, OL, asmstr> {
256 let Inst{11-15} = RA;
257 let Inst{16-20} = RB;
258 let Inst{21-30} = xo;
262 class XForm_16_ext<bits<6> opcode, bits<10> xo, dag OL, string asmstr>
263 : XForm_16<opcode, xo, OL, asmstr> {
267 class XForm_17<bits<6> opcode, bits<10> xo, dag OL, string asmstr>
268 : I<opcode, OL, asmstr> {
275 let Inst{11-15} = FRA;
276 let Inst{16-20} = FRB;
277 let Inst{21-30} = xo;
281 class XForm_25<bits<6> opcode, bits<10> xo, dag OL, string asmstr>
282 : XForm_base_r3xo<opcode, xo, OL, asmstr> {
285 class XForm_26<bits<6> opcode, bits<10> xo, dag OL, string asmstr>
286 : XForm_base_r3xo<opcode, xo, OL, asmstr> {
290 class XForm_28<bits<6> opcode, bits<10> xo, dag OL, string asmstr>
291 : XForm_base_r3xo<opcode, xo, OL, asmstr> {
295 class XLForm_1<bits<6> opcode, bits<10> xo, dag OL, string asmstr>
296 : I<opcode, OL, asmstr> {
305 let Inst{9-10} = CRDb;
306 let Inst{11-13} = CRA;
307 let Inst{14-15} = CRAb;
308 let Inst{16-18} = CRB;
309 let Inst{19-20} = CRBb;
310 let Inst{21-30} = xo;
314 class XLForm_2<bits<6> opcode, bits<10> xo, bit lk,
315 dag OL, string asmstr> : I<opcode, OL, asmstr> {
321 let Inst{11-15} = BI;
323 let Inst{19-20} = BH;
324 let Inst{21-30} = xo;
328 class XLForm_2_ext<bits<6> opcode, bits<10> xo, bits<5> bo,
329 bits<5> bi, bit lk, dag OL, string asmstr>
330 : XLForm_2<opcode, xo, lk, OL, asmstr> {
336 class XLForm_3<bits<6> opcode, bits<10> xo, dag OL, string asmstr>
337 : I<opcode, OL, asmstr> {
343 let Inst{11-13} = BFA;
346 let Inst{21-30} = xo;
351 class XFXForm_1<bits<6> opcode, bits<10> xo, dag OL, string asmstr>
352 : I<opcode, OL, asmstr> {
357 let Inst{11-20} = SPR;
358 let Inst{21-30} = xo;
362 class XFXForm_1_ext<bits<6> opcode, bits<10> xo, bits<10> spr,
363 dag OL, string asmstr>
364 : XFXForm_1<opcode, xo, OL, asmstr> {
368 class XFXForm_3<bits<6> opcode, bits<10> xo, dag OL, string asmstr>
369 : I<opcode, OL, asmstr> {
374 let Inst{21-30} = xo;
378 class XFXForm_5<bits<6> opcode, bits<10> xo, dag OL, string asmstr>
379 : I<opcode, OL, asmstr> {
385 let Inst{12-19} = FXM;
387 let Inst{21-30} = xo;
391 class XFXForm_5a<bits<6> opcode, bits<10> xo, dag OL, string asmstr>
392 : I<opcode, OL, asmstr> {
398 let Inst{12-19} = FXM;
400 let Inst{21-30} = xo;
405 class XFXForm_7<bits<6> opcode, bits<10> xo, dag OL, string asmstr>
406 : XFXForm_1<opcode, xo, OL, asmstr>;
408 class XFXForm_7_ext<bits<6> opcode, bits<10> xo, bits<10> spr,
409 dag OL, string asmstr>
410 : XFXForm_7<opcode, xo, OL, asmstr> {
415 class XSForm_1<bits<6> opcode, bits<9> xo, dag OL, string asmstr>
416 : I<opcode, OL, asmstr> {
421 bit RC = 0; // set by isDOT
425 let Inst{16-20} = SH{1-5};
426 let Inst{21-29} = xo;
427 let Inst{30} = SH{0};
432 class XOForm_1<bits<6> opcode, bits<9> xo, bit oe, dag OL, string asmstr,
434 : I<opcode, OL, asmstr> {
439 let Pattern = pattern;
441 bit RC = 0; // set by isDOT
444 let Inst{11-15} = RA;
445 let Inst{16-20} = RB;
447 let Inst{22-30} = xo;
451 class XOForm_3<bits<6> opcode, bits<9> xo, bit oe,
452 dag OL, string asmstr>
453 : XOForm_1<opcode, xo, oe, OL, asmstr, []> {
458 class AForm_1<bits<6> opcode, bits<5> xo, dag OL, string asmstr>
459 : I<opcode, OL, asmstr> {
465 bit RC = 0; // set by isDOT
467 let Inst{6-10} = FRT;
468 let Inst{11-15} = FRA;
469 let Inst{16-20} = FRB;
470 let Inst{21-25} = FRC;
471 let Inst{26-30} = xo;
475 class AForm_2<bits<6> opcode, bits<5> xo, dag OL, string asmstr>
476 : AForm_1<opcode, xo, OL, asmstr> {
480 class AForm_3<bits<6> opcode, bits<5> xo, dag OL, string asmstr>
481 : AForm_1<opcode, xo, OL, asmstr> {
486 class MForm_1<bits<6> opcode, dag OL, string asmstr> : I<opcode, OL, asmstr> {
493 bit RC = 0; // set by isDOT
496 let Inst{11-15} = RA;
497 let Inst{16-20} = RB;
498 let Inst{21-25} = MB;
499 let Inst{26-30} = ME;
503 class MForm_2<bits<6> opcode, dag OL, string asmstr>
504 : MForm_1<opcode, OL, asmstr> {
508 class MDForm_1<bits<6> opcode, bits<3> xo, dag OL, string asmstr>
509 : I<opcode, OL, asmstr> {
515 bit RC = 0; // set by isDOT
518 let Inst{11-15} = RA;
519 let Inst{16-20} = SH{1-5};
520 let Inst{21-26} = MBE;
521 let Inst{27-29} = xo;
522 let Inst{30} = SH{0};
526 //===----------------------------------------------------------------------===//
528 class Pseudo<dag OL, string asmstr> : I<0, OL, asmstr> {