1 //===-- SIInstrFormats.td - SI Instruction Encodings ----------------------===//
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 // SI Instruction format definitions.
12 //===----------------------------------------------------------------------===//
14 class InstSI <dag outs, dag ins, string asm, list<dag> pattern> :
15 AMDGPUInst<outs, ins, asm, pattern>, PredicateControl {
17 field bits<1> VM_CNT = 0;
18 field bits<1> EXP_CNT = 0;
19 field bits<1> LGKM_CNT = 0;
21 field bits<1> SALU = 0;
22 field bits<1> VALU = 0;
24 field bits<1> SOP1 = 0;
25 field bits<1> SOP2 = 0;
26 field bits<1> SOPC = 0;
27 field bits<1> SOPK = 0;
28 field bits<1> SOPP = 0;
30 field bits<1> VOP1 = 0;
31 field bits<1> VOP2 = 0;
32 field bits<1> VOP3 = 0;
33 field bits<1> VOPC = 0;
35 field bits<1> MUBUF = 0;
36 field bits<1> MTBUF = 0;
37 field bits<1> SMRD = 0;
39 field bits<1> MIMG = 0;
40 field bits<1> FLAT = 0;
42 // These need to be kept in sync with the enum in SIInstrFlags.
43 let TSFlags{0} = VM_CNT;
44 let TSFlags{1} = EXP_CNT;
45 let TSFlags{2} = LGKM_CNT;
47 let TSFlags{3} = SALU;
48 let TSFlags{4} = VALU;
50 let TSFlags{5} = SOP1;
51 let TSFlags{6} = SOP2;
52 let TSFlags{7} = SOPC;
53 let TSFlags{8} = SOPK;
54 let TSFlags{9} = SOPP;
56 let TSFlags{10} = VOP1;
57 let TSFlags{11} = VOP2;
58 let TSFlags{12} = VOP3;
59 let TSFlags{13} = VOPC;
61 let TSFlags{14} = MUBUF;
62 let TSFlags{15} = MTBUF;
63 let TSFlags{16} = SMRD;
65 let TSFlags{18} = MIMG;
66 let TSFlags{19} = FLAT;
68 // Most instructions require adjustments after selection to satisfy
69 // operand requirements.
70 let hasPostISelHook = 1;
85 let Uses = [EXEC] in {
87 class VOPCCommon <dag ins, string asm, list<dag> pattern> :
88 InstSI <(outs VCCReg:$dst), ins, asm, pattern> {
90 let DisableEncoding = "$dst";
93 let hasSideEffects = 0;
94 let UseNamedOperandTable = 1;
100 class VOP1Common <dag outs, dag ins, string asm, list<dag> pattern> :
101 InstSI <outs, ins, asm, pattern> {
104 let hasSideEffects = 0;
105 let UseNamedOperandTable = 1;
111 class VOP2Common <dag outs, dag ins, string asm, list<dag> pattern> :
112 InstSI <outs, ins, asm, pattern> {
116 let hasSideEffects = 0;
117 let UseNamedOperandTable = 1;
123 class VOP3Common <dag outs, dag ins, string asm, list<dag> pattern> :
124 InstSI <outs, ins, asm, pattern> {
128 let hasSideEffects = 0;
129 let UseNamedOperandTable = 1;
130 // Using complex patterns gives VOP3 patterns a very high complexity rating,
131 // but standalone patterns are almost always prefered, so we need to adjust the
132 // priority lower. The goal is to use a high number to reduce complexity to
133 // zero (or less than zero).
134 let AddedComplexity = -1000;
142 } // End Uses = [EXEC]
144 //===----------------------------------------------------------------------===//
146 //===----------------------------------------------------------------------===//
148 class SOP1e <bits<8> op> : Enc32 {
153 let Inst{7-0} = SSRC0;
155 let Inst{22-16} = SDST;
156 let Inst{31-23} = 0x17d; //encoding;
159 class SOP2e <bits<7> op> : Enc32 {
165 let Inst{7-0} = SSRC0;
166 let Inst{15-8} = SSRC1;
167 let Inst{22-16} = SDST;
168 let Inst{29-23} = op;
169 let Inst{31-30} = 0x2; // encoding
172 class SOPCe <bits<7> op> : Enc32 {
177 let Inst{7-0} = SSRC0;
178 let Inst{15-8} = SSRC1;
179 let Inst{22-16} = op;
180 let Inst{31-23} = 0x17e;
183 class SOPKe <bits<5> op> : Enc32 {
188 let Inst{15-0} = SIMM16;
189 let Inst{22-16} = SDST;
190 let Inst{27-23} = op;
191 let Inst{31-28} = 0xb; //encoding
194 class SOPPe <bits<7> op> : Enc32 {
198 let Inst{15-0} = simm16;
199 let Inst{22-16} = op;
200 let Inst{31-23} = 0x17f; // encoding
203 class SMRDe <bits<5> op, bits<1> imm> : Enc32 {
209 let Inst{7-0} = OFFSET;
211 let Inst{14-9} = SBASE{6-1};
212 let Inst{21-15} = SDST;
213 let Inst{26-22} = op;
214 let Inst{31-27} = 0x18; //encoding
217 class SOP1 <dag outs, dag ins, string asm, list<dag> pattern> :
218 InstSI<outs, ins, asm, pattern> {
222 let hasSideEffects = 0;
227 class SOP2 <dag outs, dag ins, string asm, list<dag> pattern> :
228 InstSI <outs, ins, asm, pattern> {
232 let hasSideEffects = 0;
236 let UseNamedOperandTable = 1;
239 class SOPC <bits<7> op, dag outs, dag ins, string asm, list<dag> pattern> :
240 InstSI<outs, ins, asm, pattern>, SOPCe <op> {
242 let DisableEncoding = "$dst";
245 let hasSideEffects = 0;
249 let UseNamedOperandTable = 1;
252 class SOPK <dag outs, dag ins, string asm, list<dag> pattern> :
253 InstSI <outs, ins , asm, pattern> {
257 let hasSideEffects = 0;
261 let UseNamedOperandTable = 1;
264 class SOPP <bits<7> op, dag ins, string asm, list<dag> pattern = []> :
265 InstSI <(outs), ins, asm, pattern >, SOPPe <op> {
269 let hasSideEffects = 0;
270 let isCodeGenOnly = 0;
274 let UseNamedOperandTable = 1;
277 class SMRD <dag outs, dag ins, string asm, list<dag> pattern> :
278 InstSI<outs, ins, asm, pattern> {
284 let hasSideEffects = 0;
285 let UseNamedOperandTable = 1;
288 //===----------------------------------------------------------------------===//
289 // Vector ALU operations
290 //===----------------------------------------------------------------------===//
292 class VOP1e <bits<8> op> : Enc32 {
297 let Inst{8-0} = SRC0;
299 let Inst{24-17} = VDST;
300 let Inst{31-25} = 0x3f; //encoding
303 class VOP2e <bits<6> op> : Enc32 {
309 let Inst{8-0} = SRC0;
310 let Inst{16-9} = VSRC1;
311 let Inst{24-17} = VDST;
312 let Inst{30-25} = op;
313 let Inst{31} = 0x0; //encoding
316 class VOP3e <bits<9> op> : Enc64 {
319 bits<2> src0_modifiers;
321 bits<2> src1_modifiers;
323 bits<2> src2_modifiers;
329 let Inst{8} = src0_modifiers{1};
330 let Inst{9} = src1_modifiers{1};
331 let Inst{10} = src2_modifiers{1};
332 let Inst{11} = clamp;
333 let Inst{25-17} = op;
334 let Inst{31-26} = 0x34; //encoding
335 let Inst{40-32} = src0;
336 let Inst{49-41} = src1;
337 let Inst{58-50} = src2;
338 let Inst{60-59} = omod;
339 let Inst{61} = src0_modifiers{0};
340 let Inst{62} = src1_modifiers{0};
341 let Inst{63} = src2_modifiers{0};
344 class VOP3be <bits<9> op> : Enc64 {
347 bits<2> src0_modifiers;
349 bits<2> src1_modifiers;
351 bits<2> src2_modifiers;
357 let Inst{14-8} = sdst;
358 let Inst{25-17} = op;
359 let Inst{31-26} = 0x34; //encoding
360 let Inst{40-32} = src0;
361 let Inst{49-41} = src1;
362 let Inst{58-50} = src2;
363 let Inst{60-59} = omod;
364 let Inst{61} = src0_modifiers{0};
365 let Inst{62} = src1_modifiers{0};
366 let Inst{63} = src2_modifiers{0};
369 class VOPCe <bits<8> op> : Enc32 {
374 let Inst{8-0} = SRC0;
375 let Inst{16-9} = VSRC1;
376 let Inst{24-17} = op;
377 let Inst{31-25} = 0x3e;
380 class VINTRPe <bits<2> op> : Enc32 {
387 let Inst{7-0} = VSRC;
388 let Inst{9-8} = ATTRCHAN;
389 let Inst{15-10} = ATTR;
390 let Inst{17-16} = op;
391 let Inst{25-18} = VDST;
392 let Inst{31-26} = 0x32; // encoding
395 class DSe <bits<8> op> : Enc64 {
405 let Inst{7-0} = offset0;
406 let Inst{15-8} = offset1;
408 let Inst{25-18} = op;
409 let Inst{31-26} = 0x36; //encoding
410 let Inst{39-32} = addr;
411 let Inst{47-40} = data0;
412 let Inst{55-48} = data1;
413 let Inst{63-56} = vdst;
416 class MUBUFe <bits<7> op> : Enc64 {
431 let Inst{11-0} = offset;
432 let Inst{12} = offen;
433 let Inst{13} = idxen;
435 let Inst{15} = addr64;
437 let Inst{24-18} = op;
438 let Inst{31-26} = 0x38; //encoding
439 let Inst{39-32} = vaddr;
440 let Inst{47-40} = vdata;
441 let Inst{52-48} = srsrc{6-2};
444 let Inst{63-56} = soffset;
447 class MTBUFe <bits<3> op> : Enc64 {
463 let Inst{11-0} = OFFSET;
464 let Inst{12} = OFFEN;
465 let Inst{13} = IDXEN;
467 let Inst{15} = ADDR64;
468 let Inst{18-16} = op;
469 let Inst{22-19} = DFMT;
470 let Inst{25-23} = NFMT;
471 let Inst{31-26} = 0x3a; //encoding
472 let Inst{39-32} = VADDR;
473 let Inst{47-40} = VDATA;
474 let Inst{52-48} = SRSRC{6-2};
477 let Inst{63-56} = SOFFSET;
480 class MIMGe <bits<7> op> : Enc64 {
495 let Inst{11-8} = DMASK;
496 let Inst{12} = UNORM;
502 let Inst{24-18} = op;
504 let Inst{31-26} = 0x3c;
505 let Inst{39-32} = VADDR;
506 let Inst{47-40} = VDATA;
507 let Inst{52-48} = SRSRC{6-2};
508 let Inst{57-53} = SSAMP{6-2};
511 class FLATe<bits<7> op> : Enc64 {
522 let Inst{24-18} = op;
523 let Inst{31-26} = 0x37; // Encoding.
524 let Inst{39-32} = addr;
525 let Inst{47-40} = data;
526 // 54-48 is reserved.
528 let Inst{63-56} = vdst;
544 let Inst{10} = COMPR;
547 let Inst{31-26} = 0x3e;
548 let Inst{39-32} = VSRC0;
549 let Inst{47-40} = VSRC1;
550 let Inst{55-48} = VSRC2;
551 let Inst{63-56} = VSRC3;
554 let Uses = [EXEC] in {
556 class VOP1 <bits<8> op, dag outs, dag ins, string asm, list<dag> pattern> :
557 VOP1Common <outs, ins, asm, pattern>,
560 class VOP2 <bits<6> op, dag outs, dag ins, string asm, list<dag> pattern> :
561 VOP2Common <outs, ins, asm, pattern>, VOP2e<op>;
563 class VOP3b <bits<9> op, dag outs, dag ins, string asm, list<dag> pattern> :
564 VOP3Common <outs, ins, asm, pattern>, VOP3be<op>;
566 class VOPC <bits<8> op, dag ins, string asm, list<dag> pattern> :
567 VOPCCommon <ins, asm, pattern>, VOPCe <op>;
569 class VINTRPCommon <dag outs, dag ins, string asm, list<dag> pattern> :
570 InstSI <outs, ins, asm, pattern> {
573 let hasSideEffects = 0;
576 } // End Uses = [EXEC]
578 //===----------------------------------------------------------------------===//
579 // Vector I/O operations
580 //===----------------------------------------------------------------------===//
582 let Uses = [EXEC] in {
584 class DS <dag outs, dag ins, string asm, list<dag> pattern> :
585 InstSI <outs, ins, asm, pattern> {
589 let UseNamedOperandTable = 1;
590 let DisableEncoding = "$m0";
593 class DS_si <bits<8> op, dag outs, dag ins, string asm, list<dag> pattern> :
594 DS <outs, ins, asm, pattern>, DSe<op>;
596 class MUBUF <dag outs, dag ins, string asm, list<dag> pattern> :
597 InstSI<outs, ins, asm, pattern> {
603 let hasSideEffects = 0;
604 let UseNamedOperandTable = 1;
607 class MTBUF <dag outs, dag ins, string asm, list<dag> pattern> :
608 InstSI<outs, ins, asm, pattern> {
614 let hasSideEffects = 0;
615 let UseNamedOperandTable = 1;
618 class FLAT <bits<7> op, dag outs, dag ins, string asm, list<dag> pattern> :
619 InstSI<outs, ins, asm, pattern>, FLATe <op> {
621 // Internally, FLAT instruction are executed as both an LDS and a
622 // Buffer instruction; so, they increment both VM_CNT and LGKM_CNT
623 // and are not considered done until both have been decremented.
627 let Uses = [EXEC, FLAT_SCR]; // M0
629 let UseNamedOperandTable = 1;
630 let hasSideEffects = 0;
633 class MIMG <bits<7> op, dag outs, dag ins, string asm, list<dag> pattern> :
634 InstSI <outs, ins, asm, pattern>, MIMGe <op> {
640 let hasSideEffects = 0; // XXX ????
645 } // End Uses = [EXEC]