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;
71 let SchedRW = [Write32Bit];
86 let Uses = [EXEC] in {
88 class VOPCCommon <dag ins, string asm, list<dag> pattern> :
89 InstSI <(outs VCCReg:$dst), ins, asm, pattern> {
91 let DisableEncoding = "$dst";
94 let hasSideEffects = 0;
95 let UseNamedOperandTable = 1;
101 class VOP1Common <dag outs, dag ins, string asm, list<dag> pattern> :
102 InstSI <outs, ins, asm, pattern> {
105 let hasSideEffects = 0;
106 let UseNamedOperandTable = 1;
112 class VOP2Common <dag outs, dag ins, string asm, list<dag> pattern> :
113 InstSI <outs, ins, asm, pattern> {
117 let hasSideEffects = 0;
118 let UseNamedOperandTable = 1;
124 class VOP3Common <dag outs, dag ins, string asm, list<dag> pattern> :
125 InstSI <outs, ins, asm, pattern> {
129 let hasSideEffects = 0;
130 let UseNamedOperandTable = 1;
131 // Using complex patterns gives VOP3 patterns a very high complexity rating,
132 // but standalone patterns are almost always prefered, so we need to adjust the
133 // priority lower. The goal is to use a high number to reduce complexity to
134 // zero (or less than zero).
135 let AddedComplexity = -1000;
143 } // End Uses = [EXEC]
145 //===----------------------------------------------------------------------===//
147 //===----------------------------------------------------------------------===//
149 class SOP1e <bits<8> op> : Enc32 {
154 let Inst{7-0} = SSRC0;
156 let Inst{22-16} = SDST;
157 let Inst{31-23} = 0x17d; //encoding;
160 class SOP2e <bits<7> op> : Enc32 {
166 let Inst{7-0} = SSRC0;
167 let Inst{15-8} = SSRC1;
168 let Inst{22-16} = SDST;
169 let Inst{29-23} = op;
170 let Inst{31-30} = 0x2; // encoding
173 class SOPCe <bits<7> op> : Enc32 {
178 let Inst{7-0} = SSRC0;
179 let Inst{15-8} = SSRC1;
180 let Inst{22-16} = op;
181 let Inst{31-23} = 0x17e;
184 class SOPKe <bits<5> op> : Enc32 {
189 let Inst{15-0} = SIMM16;
190 let Inst{22-16} = SDST;
191 let Inst{27-23} = op;
192 let Inst{31-28} = 0xb; //encoding
195 class SOPPe <bits<7> op> : Enc32 {
199 let Inst{15-0} = simm16;
200 let Inst{22-16} = op;
201 let Inst{31-23} = 0x17f; // encoding
204 class SMRDe <bits<5> op, bits<1> imm> : Enc32 {
210 let Inst{7-0} = OFFSET;
212 let Inst{14-9} = SBASE{6-1};
213 let Inst{21-15} = SDST;
214 let Inst{26-22} = op;
215 let Inst{31-27} = 0x18; //encoding
218 let SchedRW = [WriteSALU] in {
219 class SOP1 <dag outs, dag ins, string asm, list<dag> pattern> :
220 InstSI<outs, ins, asm, pattern> {
223 let hasSideEffects = 0;
228 class SOP2 <dag outs, dag ins, string asm, list<dag> pattern> :
229 InstSI <outs, ins, asm, pattern> {
233 let hasSideEffects = 0;
237 let UseNamedOperandTable = 1;
240 class SOPC <bits<7> op, dag outs, dag ins, string asm, list<dag> pattern> :
241 InstSI<outs, ins, asm, pattern>, SOPCe <op> {
243 let DisableEncoding = "$dst";
246 let hasSideEffects = 0;
250 let UseNamedOperandTable = 1;
253 class SOPK <dag outs, dag ins, string asm, list<dag> pattern> :
254 InstSI <outs, ins , asm, pattern> {
258 let hasSideEffects = 0;
262 let UseNamedOperandTable = 1;
265 class SOPP <bits<7> op, dag ins, string asm, list<dag> pattern = []> :
266 InstSI <(outs), ins, asm, pattern >, SOPPe <op> {
270 let hasSideEffects = 0;
271 let isCodeGenOnly = 0;
275 let UseNamedOperandTable = 1;
278 } // let SchedRW = [WriteSALU]
280 class SMRD <dag outs, dag ins, string asm, list<dag> pattern> :
281 InstSI<outs, ins, asm, pattern> {
287 let hasSideEffects = 0;
288 let UseNamedOperandTable = 1;
289 let SchedRW = [WriteSMEM];
292 //===----------------------------------------------------------------------===//
293 // Vector ALU operations
294 //===----------------------------------------------------------------------===//
296 class VOP1e <bits<8> op> : Enc32 {
301 let Inst{8-0} = SRC0;
303 let Inst{24-17} = VDST;
304 let Inst{31-25} = 0x3f; //encoding
307 class VOP2e <bits<6> op> : Enc32 {
313 let Inst{8-0} = SRC0;
314 let Inst{16-9} = VSRC1;
315 let Inst{24-17} = VDST;
316 let Inst{30-25} = op;
317 let Inst{31} = 0x0; //encoding
320 class VOP3e <bits<9> op> : Enc64 {
323 bits<2> src0_modifiers;
325 bits<2> src1_modifiers;
327 bits<2> src2_modifiers;
333 let Inst{8} = src0_modifiers{1};
334 let Inst{9} = src1_modifiers{1};
335 let Inst{10} = src2_modifiers{1};
336 let Inst{11} = clamp;
337 let Inst{25-17} = op;
338 let Inst{31-26} = 0x34; //encoding
339 let Inst{40-32} = src0;
340 let Inst{49-41} = src1;
341 let Inst{58-50} = src2;
342 let Inst{60-59} = omod;
343 let Inst{61} = src0_modifiers{0};
344 let Inst{62} = src1_modifiers{0};
345 let Inst{63} = src2_modifiers{0};
348 class VOP3be <bits<9> op> : Enc64 {
351 bits<2> src0_modifiers;
353 bits<2> src1_modifiers;
355 bits<2> src2_modifiers;
361 let Inst{14-8} = sdst;
362 let Inst{25-17} = op;
363 let Inst{31-26} = 0x34; //encoding
364 let Inst{40-32} = src0;
365 let Inst{49-41} = src1;
366 let Inst{58-50} = src2;
367 let Inst{60-59} = omod;
368 let Inst{61} = src0_modifiers{0};
369 let Inst{62} = src1_modifiers{0};
370 let Inst{63} = src2_modifiers{0};
373 class VOPCe <bits<8> op> : Enc32 {
378 let Inst{8-0} = SRC0;
379 let Inst{16-9} = VSRC1;
380 let Inst{24-17} = op;
381 let Inst{31-25} = 0x3e;
384 class VINTRPe <bits<2> op> : Enc32 {
391 let Inst{7-0} = VSRC;
392 let Inst{9-8} = ATTRCHAN;
393 let Inst{15-10} = ATTR;
394 let Inst{17-16} = op;
395 let Inst{25-18} = VDST;
396 let Inst{31-26} = 0x32; // encoding
399 class DSe <bits<8> op> : Enc64 {
409 let Inst{7-0} = offset0;
410 let Inst{15-8} = offset1;
412 let Inst{25-18} = op;
413 let Inst{31-26} = 0x36; //encoding
414 let Inst{39-32} = addr;
415 let Inst{47-40} = data0;
416 let Inst{55-48} = data1;
417 let Inst{63-56} = vdst;
420 class MUBUFe <bits<7> op> : Enc64 {
435 let Inst{11-0} = offset;
436 let Inst{12} = offen;
437 let Inst{13} = idxen;
439 let Inst{15} = addr64;
441 let Inst{24-18} = op;
442 let Inst{31-26} = 0x38; //encoding
443 let Inst{39-32} = vaddr;
444 let Inst{47-40} = vdata;
445 let Inst{52-48} = srsrc{6-2};
448 let Inst{63-56} = soffset;
451 class MTBUFe <bits<3> op> : Enc64 {
467 let Inst{11-0} = OFFSET;
468 let Inst{12} = OFFEN;
469 let Inst{13} = IDXEN;
471 let Inst{15} = ADDR64;
472 let Inst{18-16} = op;
473 let Inst{22-19} = DFMT;
474 let Inst{25-23} = NFMT;
475 let Inst{31-26} = 0x3a; //encoding
476 let Inst{39-32} = VADDR;
477 let Inst{47-40} = VDATA;
478 let Inst{52-48} = SRSRC{6-2};
481 let Inst{63-56} = SOFFSET;
484 class MIMGe <bits<7> op> : Enc64 {
499 let Inst{11-8} = DMASK;
500 let Inst{12} = UNORM;
506 let Inst{24-18} = op;
508 let Inst{31-26} = 0x3c;
509 let Inst{39-32} = VADDR;
510 let Inst{47-40} = VDATA;
511 let Inst{52-48} = SRSRC{6-2};
512 let Inst{57-53} = SSAMP{6-2};
515 class FLATe<bits<7> op> : Enc64 {
526 let Inst{24-18} = op;
527 let Inst{31-26} = 0x37; // Encoding.
528 let Inst{39-32} = addr;
529 let Inst{47-40} = data;
530 // 54-48 is reserved.
532 let Inst{63-56} = vdst;
548 let Inst{10} = COMPR;
551 let Inst{31-26} = 0x3e;
552 let Inst{39-32} = VSRC0;
553 let Inst{47-40} = VSRC1;
554 let Inst{55-48} = VSRC2;
555 let Inst{63-56} = VSRC3;
558 let Uses = [EXEC] in {
560 class VOP1 <bits<8> op, dag outs, dag ins, string asm, list<dag> pattern> :
561 VOP1Common <outs, ins, asm, pattern>,
564 class VOP2 <bits<6> op, dag outs, dag ins, string asm, list<dag> pattern> :
565 VOP2Common <outs, ins, asm, pattern>, VOP2e<op>;
567 class VOP3b <bits<9> op, dag outs, dag ins, string asm, list<dag> pattern> :
568 VOP3Common <outs, ins, asm, pattern>, VOP3be<op>;
570 class VOPC <bits<8> op, dag ins, string asm, list<dag> pattern> :
571 VOPCCommon <ins, asm, pattern>, VOPCe <op>;
573 class VINTRPCommon <dag outs, dag ins, string asm, list<dag> pattern> :
574 InstSI <outs, ins, asm, pattern> {
577 let hasSideEffects = 0;
580 } // End Uses = [EXEC]
582 //===----------------------------------------------------------------------===//
583 // Vector I/O operations
584 //===----------------------------------------------------------------------===//
586 let Uses = [EXEC] in {
588 class DS <dag outs, dag ins, string asm, list<dag> pattern> :
589 InstSI <outs, ins, asm, pattern> {
593 let UseNamedOperandTable = 1;
594 let DisableEncoding = "$m0";
595 let SchedRW = [WriteLDS];
598 class DS_si <bits<8> op, dag outs, dag ins, string asm, list<dag> pattern> :
599 DS <outs, ins, asm, pattern>, DSe<op>;
601 class MUBUF <dag outs, dag ins, string asm, list<dag> pattern> :
602 InstSI<outs, ins, asm, pattern> {
608 let hasSideEffects = 0;
609 let UseNamedOperandTable = 1;
610 let SchedRW = [WriteVMEM];
613 class MTBUF <dag outs, dag ins, string asm, list<dag> pattern> :
614 InstSI<outs, ins, asm, pattern> {
620 let hasSideEffects = 0;
621 let UseNamedOperandTable = 1;
622 let SchedRW = [WriteVMEM];
625 class FLAT <bits<7> op, dag outs, dag ins, string asm, list<dag> pattern> :
626 InstSI<outs, ins, asm, pattern>, FLATe <op> {
628 // Internally, FLAT instruction are executed as both an LDS and a
629 // Buffer instruction; so, they increment both VM_CNT and LGKM_CNT
630 // and are not considered done until both have been decremented.
634 let Uses = [EXEC, FLAT_SCR]; // M0
636 let UseNamedOperandTable = 1;
637 let hasSideEffects = 0;
640 class MIMG <bits<7> op, dag outs, dag ins, string asm, list<dag> pattern> :
641 InstSI <outs, ins, asm, pattern>, MIMGe <op> {
647 let hasSideEffects = 0; // XXX ????
651 } // End Uses = [EXEC]