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;
20 field bits<1> MIMG = 0;
21 field bits<1> SMRD = 0;
22 field bits<1> VOP1 = 0;
23 field bits<1> VOP2 = 0;
24 field bits<1> VOP3 = 0;
25 field bits<1> VOPC = 0;
26 field bits<1> SALU = 0;
27 field bits<1> MUBUF = 0;
28 field bits<1> MTBUF = 0;
29 field bits<1> FLAT = 0;
31 // These need to be kept in sync with the enum in SIInstrFlags.
32 let TSFlags{0} = VM_CNT;
33 let TSFlags{1} = EXP_CNT;
34 let TSFlags{2} = LGKM_CNT;
35 let TSFlags{3} = MIMG;
36 let TSFlags{4} = SMRD;
37 let TSFlags{5} = VOP1;
38 let TSFlags{6} = VOP2;
39 let TSFlags{7} = VOP3;
40 let TSFlags{8} = VOPC;
41 let TSFlags{9} = SALU;
42 let TSFlags{10} = MUBUF;
43 let TSFlags{11} = MTBUF;
44 let TSFlags{12} = FLAT;
59 class VOP3Common <dag outs, dag ins, string asm, list<dag> pattern> :
60 InstSI <outs, ins, asm, pattern> {
64 let hasSideEffects = 0;
65 let UseNamedOperandTable = 1;
66 // Using complex patterns gives VOP3 patterns a very high complexity rating,
67 // but standalone patterns are almost always prefered, so we need to adjust the
68 // priority lower. The goal is to use a high number to reduce complexity to
69 // zero (or less than zero).
70 let AddedComplexity = -1000;
78 //===----------------------------------------------------------------------===//
80 //===----------------------------------------------------------------------===//
82 class SOP1e <bits<8> op> : Enc32 {
87 let Inst{7-0} = SSRC0;
89 let Inst{22-16} = SDST;
90 let Inst{31-23} = 0x17d; //encoding;
93 class SOP2e <bits<7> op> : Enc32 {
99 let Inst{7-0} = SSRC0;
100 let Inst{15-8} = SSRC1;
101 let Inst{22-16} = SDST;
102 let Inst{29-23} = op;
103 let Inst{31-30} = 0x2; // encoding
106 class SOPCe <bits<7> op> : Enc32 {
111 let Inst{7-0} = SSRC0;
112 let Inst{15-8} = SSRC1;
113 let Inst{22-16} = op;
114 let Inst{31-23} = 0x17e;
117 class SOPKe <bits<5> op> : Enc32 {
122 let Inst{15-0} = SIMM16;
123 let Inst{22-16} = SDST;
124 let Inst{27-23} = op;
125 let Inst{31-28} = 0xb; //encoding
128 class SOPPe <bits<7> op> : Enc32 {
132 let Inst{15-0} = simm16;
133 let Inst{22-16} = op;
134 let Inst{31-23} = 0x17f; // encoding
137 class SMRDe <bits<5> op, bits<1> imm> : Enc32 {
143 let Inst{7-0} = OFFSET;
145 let Inst{14-9} = SBASE{6-1};
146 let Inst{21-15} = SDST;
147 let Inst{26-22} = op;
148 let Inst{31-27} = 0x18; //encoding
151 class SOP1 <bits<8> op, dag outs, dag ins, string asm, list<dag> pattern> :
152 InstSI<outs, ins, asm, pattern>, SOP1e <op> {
156 let hasSideEffects = 0;
160 class SOP2 <bits<7> op, dag outs, dag ins, string asm, list<dag> pattern> :
161 InstSI <outs, ins, asm, pattern>, SOP2e<op> {
165 let hasSideEffects = 0;
168 let UseNamedOperandTable = 1;
171 class SOPC <bits<7> op, dag outs, dag ins, string asm, list<dag> pattern> :
172 InstSI<outs, ins, asm, pattern>, SOPCe <op> {
174 let DisableEncoding = "$dst";
177 let hasSideEffects = 0;
180 let UseNamedOperandTable = 1;
183 class SOPK <bits<5> op, dag outs, dag ins, string asm, list<dag> pattern> :
184 InstSI <outs, ins , asm, pattern>, SOPKe<op> {
188 let hasSideEffects = 0;
191 let UseNamedOperandTable = 1;
194 class SOPP <bits<7> op, dag ins, string asm, list<dag> pattern> :
195 InstSI <(outs), ins, asm, pattern >, SOPPe <op> {
199 let hasSideEffects = 0;
202 let UseNamedOperandTable = 1;
205 class SMRD <bits<5> op, bits<1> imm, dag outs, dag ins, string asm,
206 list<dag> pattern> : InstSI<outs, ins, asm, pattern>, SMRDe<op, imm> {
212 let UseNamedOperandTable = 1;
215 //===----------------------------------------------------------------------===//
216 // Vector ALU operations
217 //===----------------------------------------------------------------------===//
219 class VOP1e <bits<8> op> : Enc32 {
224 let Inst{8-0} = SRC0;
226 let Inst{24-17} = VDST;
227 let Inst{31-25} = 0x3f; //encoding
230 class VOP2e <bits<6> op> : Enc32 {
236 let Inst{8-0} = SRC0;
237 let Inst{16-9} = VSRC1;
238 let Inst{24-17} = VDST;
239 let Inst{30-25} = op;
240 let Inst{31} = 0x0; //encoding
243 class VOP3e <bits<9> op> : Enc64 {
246 bits<2> src0_modifiers;
248 bits<2> src1_modifiers;
250 bits<2> src2_modifiers;
256 let Inst{8} = src0_modifiers{1};
257 let Inst{9} = src1_modifiers{1};
258 let Inst{10} = src2_modifiers{1};
259 let Inst{11} = clamp;
260 let Inst{25-17} = op;
261 let Inst{31-26} = 0x34; //encoding
262 let Inst{40-32} = src0;
263 let Inst{49-41} = src1;
264 let Inst{58-50} = src2;
265 let Inst{60-59} = omod;
266 let Inst{61} = src0_modifiers{0};
267 let Inst{62} = src1_modifiers{0};
268 let Inst{63} = src2_modifiers{0};
271 class VOP3be <bits<9> op> : Enc64 {
274 bits<2> src0_modifiers;
276 bits<2> src1_modifiers;
278 bits<2> src2_modifiers;
284 let Inst{14-8} = sdst;
285 let Inst{25-17} = op;
286 let Inst{31-26} = 0x34; //encoding
287 let Inst{40-32} = src0;
288 let Inst{49-41} = src1;
289 let Inst{58-50} = src2;
290 let Inst{60-59} = omod;
291 let Inst{61} = src0_modifiers{0};
292 let Inst{62} = src1_modifiers{0};
293 let Inst{63} = src2_modifiers{0};
296 class VOPCe <bits<8> op> : Enc32 {
301 let Inst{8-0} = SRC0;
302 let Inst{16-9} = VSRC1;
303 let Inst{24-17} = op;
304 let Inst{31-25} = 0x3e;
307 class VINTRPe <bits<2> op> : Enc32 {
314 let Inst{7-0} = VSRC;
315 let Inst{9-8} = ATTRCHAN;
316 let Inst{15-10} = ATTR;
317 let Inst{17-16} = op;
318 let Inst{25-18} = VDST;
319 let Inst{31-26} = 0x32; // encoding
322 class DSe <bits<8> op> : Enc64 {
332 let Inst{7-0} = offset0;
333 let Inst{15-8} = offset1;
335 let Inst{25-18} = op;
336 let Inst{31-26} = 0x36; //encoding
337 let Inst{39-32} = addr;
338 let Inst{47-40} = data0;
339 let Inst{55-48} = data1;
340 let Inst{63-56} = vdst;
343 class MUBUFe <bits<7> op> : Enc64 {
358 let Inst{11-0} = offset;
359 let Inst{12} = offen;
360 let Inst{13} = idxen;
362 let Inst{15} = addr64;
364 let Inst{24-18} = op;
365 let Inst{31-26} = 0x38; //encoding
366 let Inst{39-32} = vaddr;
367 let Inst{47-40} = vdata;
368 let Inst{52-48} = srsrc{6-2};
371 let Inst{63-56} = soffset;
374 class MTBUFe <bits<3> op> : Enc64 {
390 let Inst{11-0} = OFFSET;
391 let Inst{12} = OFFEN;
392 let Inst{13} = IDXEN;
394 let Inst{15} = ADDR64;
395 let Inst{18-16} = op;
396 let Inst{22-19} = DFMT;
397 let Inst{25-23} = NFMT;
398 let Inst{31-26} = 0x3a; //encoding
399 let Inst{39-32} = VADDR;
400 let Inst{47-40} = VDATA;
401 let Inst{52-48} = SRSRC{6-2};
404 let Inst{63-56} = SOFFSET;
407 class MIMGe <bits<7> op> : Enc64 {
422 let Inst{11-8} = DMASK;
423 let Inst{12} = UNORM;
429 let Inst{24-18} = op;
431 let Inst{31-26} = 0x3c;
432 let Inst{39-32} = VADDR;
433 let Inst{47-40} = VDATA;
434 let Inst{52-48} = SRSRC{6-2};
435 let Inst{57-53} = SSAMP{6-2};
438 class FLATe<bits<7> op> : Enc64 {
449 let Inst{24-18} = op;
450 let Inst{31-26} = 0x37; // Encoding.
451 let Inst{39-32} = addr;
452 let Inst{47-40} = data;
453 // 54-48 is reserved.
455 let Inst{63-56} = vdst;
471 let Inst{10} = COMPR;
474 let Inst{31-26} = 0x3e;
475 let Inst{39-32} = VSRC0;
476 let Inst{47-40} = VSRC1;
477 let Inst{55-48} = VSRC2;
478 let Inst{63-56} = VSRC3;
481 let Uses = [EXEC] in {
483 class VOP1 <bits<8> op, dag outs, dag ins, string asm, list<dag> pattern> :
484 InstSI <outs, ins, asm, pattern>, VOP1e<op> {
488 let hasSideEffects = 0;
489 let UseNamedOperandTable = 1;
493 class VOP2 <bits<6> op, dag outs, dag ins, string asm, list<dag> pattern> :
494 InstSI <outs, ins, asm, pattern>, VOP2e<op> {
498 let hasSideEffects = 0;
499 let UseNamedOperandTable = 1;
503 class VOP3 <bits<9> op, dag outs, dag ins, string asm, list<dag> pattern> :
504 VOP3Common <outs, ins, asm, pattern>, VOP3e<op>;
506 class VOP3b <bits<9> op, dag outs, dag ins, string asm, list<dag> pattern> :
507 VOP3Common <outs, ins, asm, pattern>, VOP3be<op>;
509 class VOPC <bits<8> op, dag ins, string asm, list<dag> pattern> :
510 InstSI <(outs VCCReg:$dst), ins, asm, pattern>, VOPCe <op> {
512 let DisableEncoding = "$dst";
515 let hasSideEffects = 0;
516 let UseNamedOperandTable = 1;
520 class VINTRP <bits <2> op, dag outs, dag ins, string asm, list<dag> pattern> :
521 InstSI <outs, ins, asm, pattern>, VINTRPe<op> {
523 let neverHasSideEffects = 1;
528 } // End Uses = [EXEC]
530 //===----------------------------------------------------------------------===//
531 // Vector I/O operations
532 //===----------------------------------------------------------------------===//
534 let Uses = [EXEC] in {
536 class DS <bits<8> op, dag outs, dag ins, string asm, list<dag> pattern> :
537 InstSI <outs, ins, asm, pattern> , DSe<op> {
540 let UseNamedOperandTable = 1;
543 class MUBUF <bits<7> op, dag outs, dag ins, string asm, list<dag> pattern> :
544 InstSI<outs, ins, asm, pattern>, MUBUFe <op> {
550 let neverHasSideEffects = 1;
551 let UseNamedOperandTable = 1;
554 class MTBUF <bits<3> op, dag outs, dag ins, string asm, list<dag> pattern> :
555 InstSI<outs, ins, asm, pattern>, MTBUFe <op> {
561 let neverHasSideEffects = 1;
562 let UseNamedOperandTable = 1;
565 class FLAT <bits<7> op, dag outs, dag ins, string asm, list<dag> pattern> :
566 InstSI<outs, ins, asm, pattern>, FLATe <op> {
568 // Internally, FLAT instruction are executed as both an LDS and a
569 // Buffer instruction; so, they increment both VM_CNT and LGKM_CNT
570 // and are not considered done until both have been decremented.
574 let Uses = [EXEC, FLAT_SCR]; // M0
576 let UseNamedOperandTable = 1;
577 let hasSideEffects = 0;
580 class MIMG <bits<7> op, dag outs, dag ins, string asm, list<dag> pattern> :
581 InstSI <outs, ins, asm, pattern>, MIMGe <op> {
590 (ins i32imm:$en, i32imm:$tgt, i32imm:$compr, i32imm:$done, i32imm:$vm,
591 VReg_32:$src0, VReg_32:$src1, VReg_32:$src2, VReg_32:$src3),
592 "EXP $en, $tgt, $compr, $done, $vm, $src0, $src1, $src2, $src3",
598 } // End Uses = [EXEC]