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 class VOP1Common <dag outs, dag ins, string asm, list<dag> pattern> :
86 InstSI <outs, ins, asm, pattern> {
89 let hasSideEffects = 0;
90 let UseNamedOperandTable = 1;
95 class VOP3Common <dag outs, dag ins, string asm, list<dag> pattern> :
96 InstSI <outs, ins, asm, pattern> {
100 let hasSideEffects = 0;
101 let UseNamedOperandTable = 1;
102 // Using complex patterns gives VOP3 patterns a very high complexity rating,
103 // but standalone patterns are almost always prefered, so we need to adjust the
104 // priority lower. The goal is to use a high number to reduce complexity to
105 // zero (or less than zero).
106 let AddedComplexity = -1000;
115 //===----------------------------------------------------------------------===//
117 //===----------------------------------------------------------------------===//
119 class SOP1e <bits<8> op> : Enc32 {
124 let Inst{7-0} = SSRC0;
126 let Inst{22-16} = SDST;
127 let Inst{31-23} = 0x17d; //encoding;
130 class SOP2e <bits<7> op> : Enc32 {
136 let Inst{7-0} = SSRC0;
137 let Inst{15-8} = SSRC1;
138 let Inst{22-16} = SDST;
139 let Inst{29-23} = op;
140 let Inst{31-30} = 0x2; // encoding
143 class SOPCe <bits<7> op> : Enc32 {
148 let Inst{7-0} = SSRC0;
149 let Inst{15-8} = SSRC1;
150 let Inst{22-16} = op;
151 let Inst{31-23} = 0x17e;
154 class SOPKe <bits<5> op> : Enc32 {
159 let Inst{15-0} = SIMM16;
160 let Inst{22-16} = SDST;
161 let Inst{27-23} = op;
162 let Inst{31-28} = 0xb; //encoding
165 class SOPPe <bits<7> op> : Enc32 {
169 let Inst{15-0} = simm16;
170 let Inst{22-16} = op;
171 let Inst{31-23} = 0x17f; // encoding
174 class SMRDe <bits<5> op, bits<1> imm> : Enc32 {
180 let Inst{7-0} = OFFSET;
182 let Inst{14-9} = SBASE{6-1};
183 let Inst{21-15} = SDST;
184 let Inst{26-22} = op;
185 let Inst{31-27} = 0x18; //encoding
188 class SOP1 <bits<8> op, dag outs, dag ins, string asm, list<dag> pattern> :
189 InstSI<outs, ins, asm, pattern>, SOP1e <op> {
193 let hasSideEffects = 0;
198 class SOP2 <bits<7> op, dag outs, dag ins, string asm, list<dag> pattern> :
199 InstSI <outs, ins, asm, pattern>, SOP2e<op> {
203 let hasSideEffects = 0;
207 let UseNamedOperandTable = 1;
210 class SOPC <bits<7> op, dag outs, dag ins, string asm, list<dag> pattern> :
211 InstSI<outs, ins, asm, pattern>, SOPCe <op> {
213 let DisableEncoding = "$dst";
216 let hasSideEffects = 0;
220 let UseNamedOperandTable = 1;
223 class SOPK <bits<5> op, dag outs, dag ins, string asm, list<dag> pattern> :
224 InstSI <outs, ins , asm, pattern>, SOPKe<op> {
228 let hasSideEffects = 0;
232 let UseNamedOperandTable = 1;
235 class SOPP <bits<7> op, dag ins, string asm, list<dag> pattern = []> :
236 InstSI <(outs), ins, asm, pattern >, SOPPe <op> {
240 let hasSideEffects = 0;
241 let isCodeGenOnly = 0;
245 let UseNamedOperandTable = 1;
248 class SMRD <dag outs, dag ins, string asm, list<dag> pattern> :
249 InstSI<outs, ins, asm, pattern> {
255 let hasSideEffects = 0;
256 let UseNamedOperandTable = 1;
259 //===----------------------------------------------------------------------===//
260 // Vector ALU operations
261 //===----------------------------------------------------------------------===//
263 class VOP1e <bits<8> op> : Enc32 {
268 let Inst{8-0} = SRC0;
270 let Inst{24-17} = VDST;
271 let Inst{31-25} = 0x3f; //encoding
274 class VOP2e <bits<6> op> : Enc32 {
280 let Inst{8-0} = SRC0;
281 let Inst{16-9} = VSRC1;
282 let Inst{24-17} = VDST;
283 let Inst{30-25} = op;
284 let Inst{31} = 0x0; //encoding
287 class VOP3e <bits<9> op> : Enc64 {
290 bits<2> src0_modifiers;
292 bits<2> src1_modifiers;
294 bits<2> src2_modifiers;
300 let Inst{8} = src0_modifiers{1};
301 let Inst{9} = src1_modifiers{1};
302 let Inst{10} = src2_modifiers{1};
303 let Inst{11} = clamp;
304 let Inst{25-17} = op;
305 let Inst{31-26} = 0x34; //encoding
306 let Inst{40-32} = src0;
307 let Inst{49-41} = src1;
308 let Inst{58-50} = src2;
309 let Inst{60-59} = omod;
310 let Inst{61} = src0_modifiers{0};
311 let Inst{62} = src1_modifiers{0};
312 let Inst{63} = src2_modifiers{0};
315 class VOP3be <bits<9> op> : Enc64 {
318 bits<2> src0_modifiers;
320 bits<2> src1_modifiers;
322 bits<2> src2_modifiers;
328 let Inst{14-8} = sdst;
329 let Inst{25-17} = op;
330 let Inst{31-26} = 0x34; //encoding
331 let Inst{40-32} = src0;
332 let Inst{49-41} = src1;
333 let Inst{58-50} = src2;
334 let Inst{60-59} = omod;
335 let Inst{61} = src0_modifiers{0};
336 let Inst{62} = src1_modifiers{0};
337 let Inst{63} = src2_modifiers{0};
340 class VOPCe <bits<8> op> : Enc32 {
345 let Inst{8-0} = SRC0;
346 let Inst{16-9} = VSRC1;
347 let Inst{24-17} = op;
348 let Inst{31-25} = 0x3e;
351 class VINTRPe <bits<2> op> : Enc32 {
358 let Inst{7-0} = VSRC;
359 let Inst{9-8} = ATTRCHAN;
360 let Inst{15-10} = ATTR;
361 let Inst{17-16} = op;
362 let Inst{25-18} = VDST;
363 let Inst{31-26} = 0x32; // encoding
366 class DSe <bits<8> op> : Enc64 {
376 let Inst{7-0} = offset0;
377 let Inst{15-8} = offset1;
379 let Inst{25-18} = op;
380 let Inst{31-26} = 0x36; //encoding
381 let Inst{39-32} = addr;
382 let Inst{47-40} = data0;
383 let Inst{55-48} = data1;
384 let Inst{63-56} = vdst;
387 class MUBUFe <bits<7> op> : Enc64 {
402 let Inst{11-0} = offset;
403 let Inst{12} = offen;
404 let Inst{13} = idxen;
406 let Inst{15} = addr64;
408 let Inst{24-18} = op;
409 let Inst{31-26} = 0x38; //encoding
410 let Inst{39-32} = vaddr;
411 let Inst{47-40} = vdata;
412 let Inst{52-48} = srsrc{6-2};
415 let Inst{63-56} = soffset;
418 class MTBUFe <bits<3> op> : Enc64 {
434 let Inst{11-0} = OFFSET;
435 let Inst{12} = OFFEN;
436 let Inst{13} = IDXEN;
438 let Inst{15} = ADDR64;
439 let Inst{18-16} = op;
440 let Inst{22-19} = DFMT;
441 let Inst{25-23} = NFMT;
442 let Inst{31-26} = 0x3a; //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 MIMGe <bits<7> op> : Enc64 {
466 let Inst{11-8} = DMASK;
467 let Inst{12} = UNORM;
473 let Inst{24-18} = op;
475 let Inst{31-26} = 0x3c;
476 let Inst{39-32} = VADDR;
477 let Inst{47-40} = VDATA;
478 let Inst{52-48} = SRSRC{6-2};
479 let Inst{57-53} = SSAMP{6-2};
482 class FLATe<bits<7> op> : Enc64 {
493 let Inst{24-18} = op;
494 let Inst{31-26} = 0x37; // Encoding.
495 let Inst{39-32} = addr;
496 let Inst{47-40} = data;
497 // 54-48 is reserved.
499 let Inst{63-56} = vdst;
515 let Inst{10} = COMPR;
518 let Inst{31-26} = 0x3e;
519 let Inst{39-32} = VSRC0;
520 let Inst{47-40} = VSRC1;
521 let Inst{55-48} = VSRC2;
522 let Inst{63-56} = VSRC3;
525 let Uses = [EXEC] in {
527 class VOP1 <bits<8> op, dag outs, dag ins, string asm, list<dag> pattern> :
528 VOP1Common <outs, ins, asm, pattern>,
531 class VOP2 <bits<6> op, dag outs, dag ins, string asm, list<dag> pattern> :
532 InstSI <outs, ins, asm, pattern>, VOP2e<op> {
536 let hasSideEffects = 0;
537 let UseNamedOperandTable = 1;
542 class VOP3 <bits<9> op, dag outs, dag ins, string asm, list<dag> pattern> :
543 VOP3Common <outs, ins, asm, pattern>, VOP3e<op>;
545 class VOP3b <bits<9> op, dag outs, dag ins, string asm, list<dag> pattern> :
546 VOP3Common <outs, ins, asm, pattern>, VOP3be<op>;
548 class VOPC <bits<8> op, dag ins, string asm, list<dag> pattern> :
549 InstSI <(outs VCCReg:$dst), ins, asm, pattern>, VOPCe <op> {
551 let DisableEncoding = "$dst";
554 let hasSideEffects = 0;
555 let UseNamedOperandTable = 1;
560 class VINTRP <bits <2> op, dag outs, dag ins, string asm, list<dag> pattern> :
561 InstSI <outs, ins, asm, pattern>, VINTRPe<op> {
564 let hasSideEffects = 0;
567 } // End Uses = [EXEC]
569 //===----------------------------------------------------------------------===//
570 // Vector I/O operations
571 //===----------------------------------------------------------------------===//
573 let Uses = [EXEC] in {
575 class DS <bits<8> op, dag outs, dag ins, string asm, list<dag> pattern> :
576 InstSI <outs, ins, asm, pattern> , DSe<op> {
580 let UseNamedOperandTable = 1;
581 let DisableEncoding = "$m0";
584 class MUBUF <bits<7> op, dag outs, dag ins, string asm, list<dag> pattern> :
585 InstSI<outs, ins, asm, pattern>, MUBUFe <op> {
591 let hasSideEffects = 0;
592 let UseNamedOperandTable = 1;
595 class MTBUF <dag outs, dag ins, string asm, list<dag> pattern> :
596 InstSI<outs, ins, asm, pattern> {
602 let hasSideEffects = 0;
603 let UseNamedOperandTable = 1;
606 class FLAT <bits<7> op, dag outs, dag ins, string asm, list<dag> pattern> :
607 InstSI<outs, ins, asm, pattern>, FLATe <op> {
609 // Internally, FLAT instruction are executed as both an LDS and a
610 // Buffer instruction; so, they increment both VM_CNT and LGKM_CNT
611 // and are not considered done until both have been decremented.
615 let Uses = [EXEC, FLAT_SCR]; // M0
617 let UseNamedOperandTable = 1;
618 let hasSideEffects = 0;
621 class MIMG <bits<7> op, dag outs, dag ins, string asm, list<dag> pattern> :
622 InstSI <outs, ins, asm, pattern>, MIMGe <op> {
628 let hasSideEffects = 0; // XXX ????
633 } // End Uses = [EXEC]