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Matt Arsenault382d9452016-01-26 04:49:22 +00001//===-- AMDGPU.td - AMDGPU Tablegen files --------*- tablegen -*-===//
Tom Stellard75aadc22012-12-11 21:25:42 +00002//
3// The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
Matt Arsenault382d9452016-01-26 04:49:22 +00008//===------------------------------------------------------------===//
Tom Stellard75aadc22012-12-11 21:25:42 +00009
Tom Stellardbc5b5372014-06-13 16:38:59 +000010include "llvm/Target/Target.td"
Tom Stellard75aadc22012-12-11 21:25:42 +000011
Matt Arsenault382d9452016-01-26 04:49:22 +000012//===------------------------------------------------------------===//
13// Subtarget Features (device properties)
14//===------------------------------------------------------------===//
Tom Stellard783893a2013-11-18 19:43:33 +000015
Matt Arsenaultf5e29972014-06-20 06:50:05 +000016def FeatureFP64 : SubtargetFeature<"fp64",
Matt Arsenault382d9452016-01-26 04:49:22 +000017 "FP64",
18 "true",
19 "Enable double precision operations"
20>;
Matt Arsenaultf171cf22014-07-14 23:40:49 +000021
Matt Arsenaultb035a572015-01-29 19:34:25 +000022def FeatureFastFMAF32 : SubtargetFeature<"fast-fmaf",
Matt Arsenault382d9452016-01-26 04:49:22 +000023 "FastFMAF32",
24 "true",
25 "Assuming f32 fma is at least as fast as mul + add"
26>;
Matt Arsenaultb035a572015-01-29 19:34:25 +000027
Matt Arsenaulte83690c2016-01-18 21:13:50 +000028def HalfRate64Ops : SubtargetFeature<"half-rate-64-ops",
Matt Arsenault382d9452016-01-26 04:49:22 +000029 "HalfRate64Ops",
30 "true",
31 "Most fp64 instructions are half rate instead of quarter"
32>;
Matt Arsenaultf171cf22014-07-14 23:40:49 +000033
Tom Stellard99792772013-06-07 20:28:49 +000034def FeatureR600ALUInst : SubtargetFeature<"R600ALUInst",
Matt Arsenault382d9452016-01-26 04:49:22 +000035 "R600ALUInst",
36 "false",
37 "Older version of ALU instructions encoding"
38>;
Tom Stellard99792772013-06-07 20:28:49 +000039
40def FeatureVertexCache : SubtargetFeature<"HasVertexCache",
Matt Arsenault382d9452016-01-26 04:49:22 +000041 "HasVertexCache",
42 "true",
43 "Specify use of dedicated vertex cache"
44>;
Tom Stellard99792772013-06-07 20:28:49 +000045
Tom Stellarda6c6e1b2013-06-07 20:37:48 +000046def FeatureCaymanISA : SubtargetFeature<"caymanISA",
Matt Arsenault382d9452016-01-26 04:49:22 +000047 "CaymanISA",
48 "true",
49 "Use Cayman ISA"
50>;
Tom Stellarda6c6e1b2013-06-07 20:37:48 +000051
Tom Stellard348273d2014-01-23 16:18:02 +000052def FeatureCFALUBug : SubtargetFeature<"cfalubug",
Matt Arsenault382d9452016-01-26 04:49:22 +000053 "CFALUBug",
54 "true",
55 "GPU has CF_ALU bug"
56>;
Changpeng Fangb41574a2015-12-22 20:55:23 +000057
Matt Arsenault3f981402014-09-15 15:41:53 +000058def FeatureFlatAddressSpace : SubtargetFeature<"flat-address-space",
Matt Arsenault382d9452016-01-26 04:49:22 +000059 "FlatAddressSpace",
60 "true",
61 "Support flat address space"
62>;
Matt Arsenault3f981402014-09-15 15:41:53 +000063
Matt Arsenaultacdc7652017-05-10 21:19:05 +000064def FeatureFlatInstOffsets : SubtargetFeature<"flat-inst-offsets",
65 "FlatInstOffsets",
66 "true",
67 "Flat instructions have immediate offset addressing mode"
68>;
69
70def FeatureFlatGlobalInsts : SubtargetFeature<"flat-global-insts",
71 "FlatGlobalInsts",
72 "true",
73 "Have global_* flat memory instructions"
74>;
75
76def FeatureFlatScratchInsts : SubtargetFeature<"flat-scratch-insts",
77 "FlatScratchInsts",
78 "true",
79 "Have scratch_* flat memory instructions"
80>;
81
Matt Arsenaultc37fe662017-07-20 17:42:47 +000082def FeatureAddNoCarryInsts : SubtargetFeature<"add-no-carry-insts",
83 "AddNoCarryInsts",
84 "true",
85 "Have VALU add/sub instructions without carry out"
86>;
87
Matt Arsenault7f681ac2016-07-01 23:03:44 +000088def FeatureUnalignedBufferAccess : SubtargetFeature<"unaligned-buffer-access",
89 "UnalignedBufferAccess",
90 "true",
91 "Support unaligned global loads and stores"
92>;
93
Wei Ding205bfdb2017-02-10 02:15:29 +000094def FeatureTrapHandler: SubtargetFeature<"trap-handler",
95 "TrapHandler",
96 "true",
97 "Trap handler support"
98>;
99
Tom Stellard64a9d082016-10-14 18:10:39 +0000100def FeatureUnalignedScratchAccess : SubtargetFeature<"unaligned-scratch-access",
101 "UnalignedScratchAccess",
102 "true",
103 "Support unaligned scratch loads and stores"
104>;
105
Matt Arsenaulte823d922017-02-18 18:29:53 +0000106def FeatureApertureRegs : SubtargetFeature<"aperture-regs",
107 "HasApertureRegs",
108 "true",
109 "Has Memory Aperture Base and Size Registers"
110>;
111
Marek Olsak0f55fba2016-12-09 19:49:54 +0000112// XNACK is disabled if SH_MEM_CONFIG.ADDRESS_MODE = GPUVM on chips that support
113// XNACK. The current default kernel driver setting is:
114// - graphics ring: XNACK disabled
115// - compute ring: XNACK enabled
116//
117// If XNACK is enabled, the VMEM latency can be worse.
118// If XNACK is disabled, the 2 SGPRs can be used for general purposes.
Nicolai Haehnle5b504972016-01-04 23:35:53 +0000119def FeatureXNACK : SubtargetFeature<"xnack",
Matt Arsenault382d9452016-01-26 04:49:22 +0000120 "EnableXNACK",
121 "true",
122 "Enable XNACK support"
123>;
Tom Stellarde99fb652015-01-20 19:33:04 +0000124
Marek Olsak4d00dd22015-03-09 15:48:09 +0000125def FeatureSGPRInitBug : SubtargetFeature<"sgpr-init-bug",
Matt Arsenault382d9452016-01-26 04:49:22 +0000126 "SGPRInitBug",
127 "true",
Matt Arsenaulta7eb14af2017-08-06 18:13:23 +0000128 "VI SGPR initialization bug requiring a fixed SGPR allocation size"
Matt Arsenault382d9452016-01-26 04:49:22 +0000129>;
Tom Stellardde008d32016-01-21 04:28:34 +0000130
Tom Stellard3498e4f2013-06-07 20:28:55 +0000131class SubtargetFeatureFetchLimit <string Value> :
132 SubtargetFeature <"fetch"#Value,
Matt Arsenault382d9452016-01-26 04:49:22 +0000133 "TexVTXClauseSize",
134 Value,
135 "Limit the maximum number of fetches in a clause to "#Value
136>;
Tom Stellard99792772013-06-07 20:28:49 +0000137
Tom Stellard3498e4f2013-06-07 20:28:55 +0000138def FeatureFetchLimit8 : SubtargetFeatureFetchLimit <"8">;
139def FeatureFetchLimit16 : SubtargetFeatureFetchLimit <"16">;
140
Tom Stellard8c347b02014-01-22 21:55:40 +0000141class SubtargetFeatureWavefrontSize <int Value> : SubtargetFeature<
Matt Arsenault382d9452016-01-26 04:49:22 +0000142 "wavefrontsize"#Value,
143 "WavefrontSize",
144 !cast<string>(Value),
145 "The number of threads per wavefront"
146>;
Tom Stellard8c347b02014-01-22 21:55:40 +0000147
148def FeatureWavefrontSize16 : SubtargetFeatureWavefrontSize<16>;
149def FeatureWavefrontSize32 : SubtargetFeatureWavefrontSize<32>;
150def FeatureWavefrontSize64 : SubtargetFeatureWavefrontSize<64>;
151
Tom Stellardec87f842015-05-25 16:15:54 +0000152class SubtargetFeatureLDSBankCount <int Value> : SubtargetFeature <
Matt Arsenault382d9452016-01-26 04:49:22 +0000153 "ldsbankcount"#Value,
154 "LDSBankCount",
155 !cast<string>(Value),
156 "The number of LDS banks per compute unit."
157>;
Tom Stellardec87f842015-05-25 16:15:54 +0000158
159def FeatureLDSBankCount16 : SubtargetFeatureLDSBankCount<16>;
160def FeatureLDSBankCount32 : SubtargetFeatureLDSBankCount<32>;
161
Tom Stellard880a80a2014-06-17 16:53:14 +0000162class SubtargetFeatureLocalMemorySize <int Value> : SubtargetFeature<
Matt Arsenault382d9452016-01-26 04:49:22 +0000163 "localmemorysize"#Value,
164 "LocalMemorySize",
165 !cast<string>(Value),
166 "The size of local memory in bytes"
167>;
Tom Stellard880a80a2014-06-17 16:53:14 +0000168
Tom Stellardd7e6f132015-04-08 01:09:26 +0000169def FeatureGCN : SubtargetFeature<"gcn",
Matt Arsenault382d9452016-01-26 04:49:22 +0000170 "IsGCN",
171 "true",
172 "GCN or newer GPU"
173>;
Tom Stellardd7e6f132015-04-08 01:09:26 +0000174
Tom Stellardd7e6f132015-04-08 01:09:26 +0000175def FeatureGCN3Encoding : SubtargetFeature<"gcn3-encoding",
Matt Arsenault382d9452016-01-26 04:49:22 +0000176 "GCN3Encoding",
177 "true",
178 "Encoding format for VI"
179>;
Tom Stellardd1f0f022015-04-23 19:33:54 +0000180
181def FeatureCIInsts : SubtargetFeature<"ci-insts",
Matt Arsenault382d9452016-01-26 04:49:22 +0000182 "CIInsts",
183 "true",
184 "Additional intstructions for CI+"
185>;
186
Matt Arsenault2021f082017-02-18 19:12:26 +0000187def FeatureGFX9Insts : SubtargetFeature<"gfx9-insts",
188 "GFX9Insts",
189 "true",
190 "Additional intstructions for GFX9+"
191>;
192
Matt Arsenault9d82ee72016-02-27 08:53:55 +0000193def FeatureSMemRealTime : SubtargetFeature<"s-memrealtime",
194 "HasSMemRealTime",
Matt Arsenault61738cb2016-02-27 08:53:46 +0000195 "true",
Matt Arsenault9d82ee72016-02-27 08:53:55 +0000196 "Has s_memrealtime instruction"
197>;
198
Matt Arsenaultc88ba362016-10-29 04:05:06 +0000199def FeatureInv2PiInlineImm : SubtargetFeature<"inv-2pi-inline-imm",
200 "HasInv2PiInlineImm",
201 "true",
202 "Has 1 / (2 * pi) as inline immediate"
203>;
204
Matt Arsenault9d82ee72016-02-27 08:53:55 +0000205def Feature16BitInsts : SubtargetFeature<"16-bit-insts",
206 "Has16BitInsts",
207 "true",
208 "Has i16/f16 instructions"
Matt Arsenault61738cb2016-02-27 08:53:46 +0000209>;
210
Matt Arsenault9be7b0d2017-02-27 18:49:11 +0000211def FeatureVOP3P : SubtargetFeature<"vop3p",
212 "HasVOP3PInsts",
213 "true",
214 "Has VOP3P packed instructions"
215>;
216
Matt Arsenaultcc88ce32016-10-12 18:00:51 +0000217def FeatureMovrel : SubtargetFeature<"movrel",
218 "HasMovrel",
219 "true",
220 "Has v_movrel*_b32 instructions"
221>;
222
223def FeatureVGPRIndexMode : SubtargetFeature<"vgpr-index-mode",
224 "HasVGPRIndexMode",
225 "true",
226 "Has VGPR mode register indexing"
227>;
228
Matt Arsenault7b647552016-10-28 21:55:15 +0000229def FeatureScalarStores : SubtargetFeature<"scalar-stores",
230 "HasScalarStores",
231 "true",
232 "Has store scalar memory instructions"
233>;
234
Sam Kolton07dbde22017-01-20 10:01:25 +0000235def FeatureSDWA : SubtargetFeature<"sdwa",
236 "HasSDWA",
237 "true",
238 "Support SDWA (Sub-DWORD Addressing) extension"
239>;
240
Sam Kolton3c4933f2017-06-22 06:26:41 +0000241def FeatureSDWAOmod : SubtargetFeature<"sdwa-omod",
242 "HasSDWAOmod",
243 "true",
244 "Support OMod with SDWA (Sub-DWORD Addressing) extension"
245>;
246
247def FeatureSDWAScalar : SubtargetFeature<"sdwa-scalar",
248 "HasSDWAScalar",
249 "true",
250 "Support scalar register with SDWA (Sub-DWORD Addressing) extension"
251>;
252
253def FeatureSDWASdst : SubtargetFeature<"sdwa-sdst",
254 "HasSDWASdst",
255 "true",
256 "Support scalar dst for VOPC with SDWA (Sub-DWORD Addressing) extension"
257>;
258
259def FeatureSDWAMac : SubtargetFeature<"sdwa-mav",
260 "HasSDWAMac",
261 "true",
262 "Support v_mac_f32/f16 with SDWA (Sub-DWORD Addressing) extension"
263>;
264
Sam Koltona179d252017-06-27 15:02:23 +0000265def FeatureSDWAOutModsVOPC : SubtargetFeature<"sdwa-out-mods-vopc",
266 "HasSDWAOutModsVOPC",
Sam Kolton3c4933f2017-06-22 06:26:41 +0000267 "true",
268 "Support clamp for VOPC with SDWA (Sub-DWORD Addressing) extension"
269>;
270
Sam Kolton07dbde22017-01-20 10:01:25 +0000271def FeatureDPP : SubtargetFeature<"dpp",
272 "HasDPP",
273 "true",
274 "Support DPP (Data Parallel Primitives) extension"
275>;
276
Dmitry Preobrazhenskyff64aa52017-08-16 13:51:56 +0000277def FeatureIntClamp : SubtargetFeature<"int-clamp-insts",
278 "HasIntClamp",
279 "true",
280 "Support clamp for integer destination"
281>;
282
Matt Arsenault382d9452016-01-26 04:49:22 +0000283//===------------------------------------------------------------===//
284// Subtarget Features (options and debugging)
285//===------------------------------------------------------------===//
286
287// Some instructions do not support denormals despite this flag. Using
288// fp32 denormals also causes instructions to run at the double
289// precision rate for the device.
290def FeatureFP32Denormals : SubtargetFeature<"fp32-denormals",
291 "FP32Denormals",
292 "true",
293 "Enable single precision denormal handling"
294>;
295
Matt Arsenaulta6867fd2017-01-23 22:31:03 +0000296// Denormal handling for fp64 and fp16 is controlled by the same
297// config register when fp16 supported.
298// TODO: Do we need a separate f16 setting when not legal?
299def FeatureFP64FP16Denormals : SubtargetFeature<"fp64-fp16-denormals",
300 "FP64FP16Denormals",
Matt Arsenault382d9452016-01-26 04:49:22 +0000301 "true",
Matt Arsenaulta6867fd2017-01-23 22:31:03 +0000302 "Enable double and half precision denormal handling",
Matt Arsenault382d9452016-01-26 04:49:22 +0000303 [FeatureFP64]
304>;
305
Matt Arsenaulta6867fd2017-01-23 22:31:03 +0000306def FeatureFP64Denormals : SubtargetFeature<"fp64-denormals",
307 "FP64FP16Denormals",
308 "true",
309 "Enable double and half precision denormal handling",
310 [FeatureFP64, FeatureFP64FP16Denormals]
311>;
312
313def FeatureFP16Denormals : SubtargetFeature<"fp16-denormals",
314 "FP64FP16Denormals",
315 "true",
316 "Enable half precision denormal handling",
317 [FeatureFP64FP16Denormals]
318>;
319
Matt Arsenault2fdf2a12017-02-21 23:35:48 +0000320def FeatureDX10Clamp : SubtargetFeature<"dx10-clamp",
321 "DX10Clamp",
322 "true",
323 "clamp modifier clamps NaNs to 0.0"
324>;
325
Matt Arsenaultf639c322016-01-28 20:53:42 +0000326def FeatureFPExceptions : SubtargetFeature<"fp-exceptions",
327 "FPExceptions",
328 "true",
329 "Enable floating point exceptions"
330>;
331
Matt Arsenault24ee0782016-02-12 02:40:47 +0000332class FeatureMaxPrivateElementSize<int size> : SubtargetFeature<
333 "max-private-element-size-"#size,
334 "MaxPrivateElementSize",
335 !cast<string>(size),
336 "Maximum private access size may be "#size
337>;
338
339def FeatureMaxPrivateElementSize4 : FeatureMaxPrivateElementSize<4>;
340def FeatureMaxPrivateElementSize8 : FeatureMaxPrivateElementSize<8>;
341def FeatureMaxPrivateElementSize16 : FeatureMaxPrivateElementSize<16>;
342
Matt Arsenault382d9452016-01-26 04:49:22 +0000343def FeatureVGPRSpilling : SubtargetFeature<"vgpr-spilling",
344 "EnableVGPRSpilling",
345 "true",
346 "Enable spilling of VGPRs to scratch memory"
347>;
348
349def FeatureDumpCode : SubtargetFeature <"DumpCode",
350 "DumpCode",
351 "true",
352 "Dump MachineInstrs in the CodeEmitter"
353>;
354
355def FeatureDumpCodeLower : SubtargetFeature <"dumpcode",
356 "DumpCode",
357 "true",
358 "Dump MachineInstrs in the CodeEmitter"
359>;
360
Matt Arsenault382d9452016-01-26 04:49:22 +0000361def FeaturePromoteAlloca : SubtargetFeature <"promote-alloca",
362 "EnablePromoteAlloca",
363 "true",
364 "Enable promote alloca pass"
365>;
366
367// XXX - This should probably be removed once enabled by default
368def FeatureEnableLoadStoreOpt : SubtargetFeature <"load-store-opt",
369 "EnableLoadStoreOpt",
370 "true",
371 "Enable SI load/store optimizer pass"
372>;
373
374// Performance debugging feature. Allow using DS instruction immediate
375// offsets even if the base pointer can't be proven to be base. On SI,
376// base pointer values that won't give the same result as a 16-bit add
377// are not safe to fold, but this will override the conservative test
378// for the base pointer.
379def FeatureEnableUnsafeDSOffsetFolding : SubtargetFeature <
380 "unsafe-ds-offset-folding",
381 "EnableUnsafeDSOffsetFolding",
382 "true",
383 "Force using DS instruction immediate offsets on SI"
384>;
385
Matt Arsenault382d9452016-01-26 04:49:22 +0000386def FeatureEnableSIScheduler : SubtargetFeature<"si-scheduler",
387 "EnableSIScheduler",
388 "true",
389 "Enable SI Machine Scheduler"
390>;
391
Matt Arsenault7aad8fd2017-01-24 22:02:15 +0000392// Unless +-flat-for-global is specified, turn on FlatForGlobal for
393// all OS-es on VI and newer hardware to avoid assertion failures due
394// to missing ADDR64 variants of MUBUF instructions.
395// FIXME: moveToVALU should be able to handle converting addr64 MUBUF
396// instructions.
397
Matt Arsenault382d9452016-01-26 04:49:22 +0000398def FeatureFlatForGlobal : SubtargetFeature<"flat-for-global",
399 "FlatForGlobal",
400 "true",
Matt Arsenaultd8f7ea32017-01-27 17:42:26 +0000401 "Force to generate flat instruction for global"
Matt Arsenault382d9452016-01-26 04:49:22 +0000402>;
Tom Stellardd1f0f022015-04-23 19:33:54 +0000403
Konstantin Zhuravlyovbe6c0ca2017-06-02 17:40:26 +0000404def FeatureAutoWaitcntBeforeBarrier : SubtargetFeature <
405 "auto-waitcnt-before-barrier",
406 "AutoWaitcntBeforeBarrier",
407 "true",
408 "Hardware automatically inserts waitcnt before barrier"
409>;
410
Tom Stellardd1f0f022015-04-23 19:33:54 +0000411// Dummy feature used to disable assembler instructions.
412def FeatureDisable : SubtargetFeature<"",
Matt Arsenault382d9452016-01-26 04:49:22 +0000413 "FeatureDisable","true",
414 "Dummy feature to disable assembler instructions"
415>;
Tom Stellardd1f0f022015-04-23 19:33:54 +0000416
Tom Stellarda6c6e1b2013-06-07 20:37:48 +0000417class SubtargetFeatureGeneration <string Value,
418 list<SubtargetFeature> Implies> :
419 SubtargetFeature <Value, "Gen", "AMDGPUSubtarget::"#Value,
420 Value#" GPU generation", Implies>;
421
Tom Stellard880a80a2014-06-17 16:53:14 +0000422def FeatureLocalMemorySize0 : SubtargetFeatureLocalMemorySize<0>;
423def FeatureLocalMemorySize32768 : SubtargetFeatureLocalMemorySize<32768>;
424def FeatureLocalMemorySize65536 : SubtargetFeatureLocalMemorySize<65536>;
425
Tom Stellarda6c6e1b2013-06-07 20:37:48 +0000426def FeatureR600 : SubtargetFeatureGeneration<"R600",
Matt Arsenault382d9452016-01-26 04:49:22 +0000427 [FeatureR600ALUInst, FeatureFetchLimit8, FeatureLocalMemorySize0]
428>;
Tom Stellarda6c6e1b2013-06-07 20:37:48 +0000429
430def FeatureR700 : SubtargetFeatureGeneration<"R700",
Matt Arsenault382d9452016-01-26 04:49:22 +0000431 [FeatureFetchLimit16, FeatureLocalMemorySize0]
432>;
Tom Stellarda6c6e1b2013-06-07 20:37:48 +0000433
434def FeatureEvergreen : SubtargetFeatureGeneration<"EVERGREEN",
Matt Arsenault382d9452016-01-26 04:49:22 +0000435 [FeatureFetchLimit16, FeatureLocalMemorySize32768]
436>;
Tom Stellarda6c6e1b2013-06-07 20:37:48 +0000437
438def FeatureNorthernIslands : SubtargetFeatureGeneration<"NORTHERN_ISLANDS",
Matt Arsenault382d9452016-01-26 04:49:22 +0000439 [FeatureFetchLimit16, FeatureWavefrontSize64,
440 FeatureLocalMemorySize32768]
Tom Stellard880a80a2014-06-17 16:53:14 +0000441>;
Tom Stellarda6c6e1b2013-06-07 20:37:48 +0000442
443def FeatureSouthernIslands : SubtargetFeatureGeneration<"SOUTHERN_ISLANDS",
Matt Arsenault382d9452016-01-26 04:49:22 +0000444 [FeatureFP64, FeatureLocalMemorySize32768,
Matt Arsenault8728c5f2017-08-07 14:58:04 +0000445 FeatureWavefrontSize64, FeatureGCN,
Matt Arsenaultcc88ce32016-10-12 18:00:51 +0000446 FeatureLDSBankCount32, FeatureMovrel]
Matt Arsenault382d9452016-01-26 04:49:22 +0000447>;
Tom Stellarda6c6e1b2013-06-07 20:37:48 +0000448
Tom Stellard6e1ee472013-10-29 16:37:28 +0000449def FeatureSeaIslands : SubtargetFeatureGeneration<"SEA_ISLANDS",
Matt Arsenault382d9452016-01-26 04:49:22 +0000450 [FeatureFP64, FeatureLocalMemorySize65536,
451 FeatureWavefrontSize64, FeatureGCN, FeatureFlatAddressSpace,
Matt Arsenault8728c5f2017-08-07 14:58:04 +0000452 FeatureCIInsts, FeatureMovrel]
Matt Arsenault382d9452016-01-26 04:49:22 +0000453>;
Marek Olsak5df00d62014-12-07 12:18:57 +0000454
455def FeatureVolcanicIslands : SubtargetFeatureGeneration<"VOLCANIC_ISLANDS",
Matt Arsenault382d9452016-01-26 04:49:22 +0000456 [FeatureFP64, FeatureLocalMemorySize65536,
457 FeatureWavefrontSize64, FeatureFlatAddressSpace, FeatureGCN,
Matt Arsenault9d82ee72016-02-27 08:53:55 +0000458 FeatureGCN3Encoding, FeatureCIInsts, Feature16BitInsts,
Matt Arsenault7b647552016-10-28 21:55:15 +0000459 FeatureSMemRealTime, FeatureVGPRIndexMode, FeatureMovrel,
Sam Kolton3c4933f2017-06-22 06:26:41 +0000460 FeatureScalarStores, FeatureInv2PiInlineImm,
Dmitry Preobrazhenskyff64aa52017-08-16 13:51:56 +0000461 FeatureSDWA, FeatureSDWAOutModsVOPC, FeatureSDWAMac, FeatureDPP,
462 FeatureIntClamp
Matt Arsenault9d82ee72016-02-27 08:53:55 +0000463 ]
Matt Arsenault382d9452016-01-26 04:49:22 +0000464>;
Marek Olsak5df00d62014-12-07 12:18:57 +0000465
Matt Arsenaulte823d922017-02-18 18:29:53 +0000466def FeatureGFX9 : SubtargetFeatureGeneration<"GFX9",
467 [FeatureFP64, FeatureLocalMemorySize65536,
468 FeatureWavefrontSize64, FeatureFlatAddressSpace, FeatureGCN,
469 FeatureGCN3Encoding, FeatureCIInsts, Feature16BitInsts,
470 FeatureSMemRealTime, FeatureScalarStores, FeatureInv2PiInlineImm,
Konstantin Zhuravlyovf6284062017-04-21 19:57:53 +0000471 FeatureApertureRegs, FeatureGFX9Insts, FeatureVOP3P, FeatureVGPRIndexMode,
Dmitry Preobrazhenskyff64aa52017-08-16 13:51:56 +0000472 FeatureFastFMAF32, FeatureDPP, FeatureIntClamp,
Sam Kolton3c4933f2017-06-22 06:26:41 +0000473 FeatureSDWA, FeatureSDWAOmod, FeatureSDWAScalar, FeatureSDWASdst,
Matt Arsenaultc37fe662017-07-20 17:42:47 +0000474 FeatureFlatInstOffsets, FeatureFlatGlobalInsts, FeatureFlatScratchInsts,
475 FeatureAddNoCarryInsts
Matt Arsenaulte823d922017-02-18 18:29:53 +0000476 ]
477>;
478
Yaxun Liu94add852016-10-26 16:37:56 +0000479class SubtargetFeatureISAVersion <int Major, int Minor, int Stepping,
480 list<SubtargetFeature> Implies>
481 : SubtargetFeature <
482 "isaver"#Major#"."#Minor#"."#Stepping,
483 "IsaVersion",
484 "ISAVersion"#Major#"_"#Minor#"_"#Stepping,
485 "Instruction set version number",
486 Implies
487>;
488
Wei Ding7c3e5112017-06-10 03:53:19 +0000489def FeatureISAVersion6_0_0 : SubtargetFeatureISAVersion <6,0,0,
490 [FeatureSouthernIslands,
Matt Arsenault8bcf2f22017-06-26 03:01:36 +0000491 FeatureFastFMAF32,
Wei Ding7c3e5112017-06-10 03:53:19 +0000492 HalfRate64Ops,
493 FeatureLDSBankCount32]>;
494
495def FeatureISAVersion6_0_1 : SubtargetFeatureISAVersion <6,0,1,
496 [FeatureSouthernIslands,
497 FeatureLDSBankCount32]>;
Matt Arsenault8bcf2f22017-06-26 03:01:36 +0000498
Matt Arsenaultf3dd8632016-11-01 00:55:14 +0000499def FeatureISAVersion7_0_0 : SubtargetFeatureISAVersion <7,0,0,
Yaxun Liu94add852016-10-26 16:37:56 +0000500 [FeatureSeaIslands,
501 FeatureLDSBankCount32]>;
Matt Arsenaultf3dd8632016-11-01 00:55:14 +0000502
Yaxun Liu94add852016-10-26 16:37:56 +0000503def FeatureISAVersion7_0_1 : SubtargetFeatureISAVersion <7,0,1,
504 [FeatureSeaIslands,
505 HalfRate64Ops,
506 FeatureLDSBankCount32,
507 FeatureFastFMAF32]>;
Matt Arsenaultf3dd8632016-11-01 00:55:14 +0000508
Yaxun Liu94add852016-10-26 16:37:56 +0000509def FeatureISAVersion7_0_2 : SubtargetFeatureISAVersion <7,0,2,
510 [FeatureSeaIslands,
Marek Olsak23ae31c2016-12-09 19:49:58 +0000511 FeatureLDSBankCount16]>;
Matt Arsenaultf3dd8632016-11-01 00:55:14 +0000512
Wei Ding7c3e5112017-06-10 03:53:19 +0000513def FeatureISAVersion7_0_3 : SubtargetFeatureISAVersion <7,0,3,
514 [FeatureSeaIslands,
515 FeatureLDSBankCount16]>;
516
Yaxun Liu94add852016-10-26 16:37:56 +0000517def FeatureISAVersion8_0_0 : SubtargetFeatureISAVersion <8,0,0,
518 [FeatureVolcanicIslands,
519 FeatureLDSBankCount32,
520 FeatureSGPRInitBug]>;
Matt Arsenaultf3dd8632016-11-01 00:55:14 +0000521
Yaxun Liu94add852016-10-26 16:37:56 +0000522def FeatureISAVersion8_0_1 : SubtargetFeatureISAVersion <8,0,1,
523 [FeatureVolcanicIslands,
Konstantin Zhuravlyov68107652017-08-24 20:03:07 +0000524 FeatureFastFMAF32,
525 HalfRate64Ops,
Yaxun Liu94add852016-10-26 16:37:56 +0000526 FeatureLDSBankCount32,
527 FeatureXNACK]>;
Matt Arsenaultf3dd8632016-11-01 00:55:14 +0000528
Yaxun Liu94add852016-10-26 16:37:56 +0000529def FeatureISAVersion8_0_2 : SubtargetFeatureISAVersion <8,0,2,
530 [FeatureVolcanicIslands,
531 FeatureLDSBankCount32,
532 FeatureSGPRInitBug]>;
Matt Arsenaultf3dd8632016-11-01 00:55:14 +0000533
Yaxun Liu94add852016-10-26 16:37:56 +0000534def FeatureISAVersion8_0_3 : SubtargetFeatureISAVersion <8,0,3,
535 [FeatureVolcanicIslands,
536 FeatureLDSBankCount32]>;
Matt Arsenaultf3dd8632016-11-01 00:55:14 +0000537
Yaxun Liu94add852016-10-26 16:37:56 +0000538def FeatureISAVersion8_0_4 : SubtargetFeatureISAVersion <8,0,4,
539 [FeatureVolcanicIslands,
540 FeatureLDSBankCount32]>;
Matt Arsenaultf3dd8632016-11-01 00:55:14 +0000541
Yaxun Liu94add852016-10-26 16:37:56 +0000542def FeatureISAVersion8_1_0 : SubtargetFeatureISAVersion <8,1,0,
543 [FeatureVolcanicIslands,
544 FeatureLDSBankCount16,
545 FeatureXNACK]>;
546
Wei Ding7c3e5112017-06-10 03:53:19 +0000547def FeatureISAVersion9_0_0 : SubtargetFeatureISAVersion <9,0,0,
548 [FeatureGFX9,
549 FeatureLDSBankCount32]>;
550
551def FeatureISAVersion9_0_1 : SubtargetFeatureISAVersion <9,0,1,
552 [FeatureGFX9,
553 FeatureLDSBankCount32,
554 FeatureXNACK]>;
555
556def FeatureISAVersion9_0_2 : SubtargetFeatureISAVersion <9,0,2,
557 [FeatureGFX9,
558 FeatureLDSBankCount32]>;
559
560def FeatureISAVersion9_0_3 : SubtargetFeatureISAVersion <9,0,3,
561 [FeatureGFX9,
562 FeatureLDSBankCount32,
563 FeatureXNACK]>;
Matt Arsenaulte823d922017-02-18 18:29:53 +0000564
Tom Stellard3498e4f2013-06-07 20:28:55 +0000565//===----------------------------------------------------------------------===//
Konstantin Zhuravlyov8c273ad2016-04-18 16:28:23 +0000566// Debugger related subtarget features.
567//===----------------------------------------------------------------------===//
568
569def FeatureDebuggerInsertNops : SubtargetFeature<
570 "amdgpu-debugger-insert-nops",
571 "DebuggerInsertNops",
572 "true",
Konstantin Zhuravlyove3d322a2016-05-13 18:21:28 +0000573 "Insert one nop instruction for each high level source statement"
Konstantin Zhuravlyov8c273ad2016-04-18 16:28:23 +0000574>;
575
Konstantin Zhuravlyov29ddd2b2016-05-24 18:37:18 +0000576def FeatureDebuggerReserveRegs : SubtargetFeature<
577 "amdgpu-debugger-reserve-regs",
578 "DebuggerReserveRegs",
Konstantin Zhuravlyov1d99c4d2016-04-26 15:43:14 +0000579 "true",
Konstantin Zhuravlyov29ddd2b2016-05-24 18:37:18 +0000580 "Reserve registers for debugger usage"
Konstantin Zhuravlyov1d99c4d2016-04-26 15:43:14 +0000581>;
582
Konstantin Zhuravlyovf2f3d142016-06-25 03:11:28 +0000583def FeatureDebuggerEmitPrologue : SubtargetFeature<
584 "amdgpu-debugger-emit-prologue",
585 "DebuggerEmitPrologue",
586 "true",
587 "Emit debugger prologue"
588>;
589
Konstantin Zhuravlyov8c273ad2016-04-18 16:28:23 +0000590//===----------------------------------------------------------------------===//
Tom Stellard75aadc22012-12-11 21:25:42 +0000591
592def AMDGPUInstrInfo : InstrInfo {
593 let guessInstructionProperties = 1;
Matt Arsenault1ecac062015-02-18 02:15:32 +0000594 let noNamedPositionallyEncodedOperands = 1;
Tom Stellard75aadc22012-12-11 21:25:42 +0000595}
596
Tom Stellard9d7ddd52014-11-14 14:08:00 +0000597def AMDGPUAsmParser : AsmParser {
598 // Some of the R600 registers have the same name, so this crashes.
599 // For example T0_XYZW and T0_XY both have the asm name T0.
600 let ShouldEmitMatchRegisterName = 0;
601}
602
Konstantin Zhuravlyovda4687c2016-09-27 14:42:48 +0000603def AMDGPUAsmWriter : AsmWriter {
604 int PassSubtarget = 1;
605}
606
Sam Koltond63d8a72016-09-09 09:37:51 +0000607def AMDGPUAsmVariants {
608 string Default = "Default";
609 int Default_ID = 0;
610 string VOP3 = "VOP3";
611 int VOP3_ID = 1;
612 string SDWA = "SDWA";
613 int SDWA_ID = 2;
Sam Koltonf7659d712017-05-23 10:08:55 +0000614 string SDWA9 = "SDWA9";
615 int SDWA9_ID = 3;
Sam Koltond63d8a72016-09-09 09:37:51 +0000616 string DPP = "DPP";
Sam Koltonf7659d712017-05-23 10:08:55 +0000617 int DPP_ID = 4;
Sam Koltonfb0d9d92016-09-12 14:42:43 +0000618 string Disable = "Disable";
Sam Koltonf7659d712017-05-23 10:08:55 +0000619 int Disable_ID = 5;
Sam Koltond63d8a72016-09-09 09:37:51 +0000620}
621
622def DefaultAMDGPUAsmParserVariant : AsmParserVariant {
623 let Variant = AMDGPUAsmVariants.Default_ID;
624 let Name = AMDGPUAsmVariants.Default;
625}
626
627def VOP3AsmParserVariant : AsmParserVariant {
628 let Variant = AMDGPUAsmVariants.VOP3_ID;
629 let Name = AMDGPUAsmVariants.VOP3;
630}
631
632def SDWAAsmParserVariant : AsmParserVariant {
633 let Variant = AMDGPUAsmVariants.SDWA_ID;
634 let Name = AMDGPUAsmVariants.SDWA;
635}
636
Sam Koltonf7659d712017-05-23 10:08:55 +0000637def SDWA9AsmParserVariant : AsmParserVariant {
638 let Variant = AMDGPUAsmVariants.SDWA9_ID;
639 let Name = AMDGPUAsmVariants.SDWA9;
640}
641
642
Sam Koltond63d8a72016-09-09 09:37:51 +0000643def DPPAsmParserVariant : AsmParserVariant {
644 let Variant = AMDGPUAsmVariants.DPP_ID;
645 let Name = AMDGPUAsmVariants.DPP;
646}
647
Tom Stellard75aadc22012-12-11 21:25:42 +0000648def AMDGPU : Target {
649 // Pull in Instruction Info:
650 let InstructionSet = AMDGPUInstrInfo;
Tom Stellard9d7ddd52014-11-14 14:08:00 +0000651 let AssemblyParsers = [AMDGPUAsmParser];
Sam Koltond63d8a72016-09-09 09:37:51 +0000652 let AssemblyParserVariants = [DefaultAMDGPUAsmParserVariant,
653 VOP3AsmParserVariant,
654 SDWAAsmParserVariant,
Sam Koltonf7659d712017-05-23 10:08:55 +0000655 SDWA9AsmParserVariant,
Sam Koltond63d8a72016-09-09 09:37:51 +0000656 DPPAsmParserVariant];
Konstantin Zhuravlyovda4687c2016-09-27 14:42:48 +0000657 let AssemblyWriters = [AMDGPUAsmWriter];
Tom Stellard75aadc22012-12-11 21:25:42 +0000658}
659
Tom Stellardbc5b5372014-06-13 16:38:59 +0000660// Dummy Instruction itineraries for pseudo instructions
661def ALU_NULL : FuncUnit;
662def NullALU : InstrItinClass;
663
Tom Stellard0e70de52014-05-16 20:56:45 +0000664//===----------------------------------------------------------------------===//
665// Predicate helper class
666//===----------------------------------------------------------------------===//
667
Tom Stellardd1f0f022015-04-23 19:33:54 +0000668def TruePredicate : Predicate<"true">;
Matt Arsenault382d9452016-01-26 04:49:22 +0000669
Tom Stellardd1f0f022015-04-23 19:33:54 +0000670def isSICI : Predicate<
671 "Subtarget->getGeneration() == AMDGPUSubtarget::SOUTHERN_ISLANDS ||"
672 "Subtarget->getGeneration() == AMDGPUSubtarget::SEA_ISLANDS"
Matt Arsenault8728c5f2017-08-07 14:58:04 +0000673>, AssemblerPredicate<"!FeatureGCN3Encoding">;
Tom Stellardd1f0f022015-04-23 19:33:54 +0000674
Tom Stellard5ebdfbe2015-12-24 03:18:18 +0000675def isVI : Predicate <
676 "Subtarget->getGeneration() >= AMDGPUSubtarget::VOLCANIC_ISLANDS">,
677 AssemblerPredicate<"FeatureGCN3Encoding">;
678
Matt Arsenault2021f082017-02-18 19:12:26 +0000679def isGFX9 : Predicate <
680 "Subtarget->getGeneration() >= AMDGPUSubtarget::GFX9">,
681 AssemblerPredicate<"FeatureGFX9Insts">;
682
Matt Arsenaulte823d922017-02-18 18:29:53 +0000683// TODO: Either the name to be changed or we simply use IsCI!
Matt Arsenault382d9452016-01-26 04:49:22 +0000684def isCIVI : Predicate <
Matt Arsenaulte823d922017-02-18 18:29:53 +0000685 "Subtarget->getGeneration() >= AMDGPUSubtarget::SEA_ISLANDS">,
686 AssemblerPredicate<"FeatureCIInsts">;
Matt Arsenault382d9452016-01-26 04:49:22 +0000687
Matt Arsenault9698f1c2017-06-20 19:54:14 +0000688def HasFlatAddressSpace : Predicate<"Subtarget->hasFlatAddressSpace()">,
689 AssemblerPredicate<"FeatureFlatAddressSpace">;
690
691def HasFlatGlobalInsts : Predicate<"Subtarget->hasFlatGlobalInsts()">,
692 AssemblerPredicate<"FeatureFlatGlobalInsts">;
Matt Arsenaultca7b0a12017-07-21 15:36:16 +0000693def HasFlatScratchInsts : Predicate<"Subtarget->hasFlatScratchInsts()">,
694 AssemblerPredicate<"FeatureFlatScratchInsts">;
Matt Arsenaulted6e8f02017-09-01 18:36:06 +0000695def HasD16LoadStore : Predicate<"Subtarget->hasD16LoadStore()">,
696 AssemblerPredicate<"FeatureGFX9Insts">;
Matt Arsenault382d9452016-01-26 04:49:22 +0000697
Matt Arsenaultefa1d652017-09-01 18:38:02 +0000698def HasDSAddTid : Predicate<"Subtarget->getGeneration() >= AMDGPUSubtarget::GFX9">,
699 AssemblerPredicate<"FeatureGFX9Insts">;
700
Matt Arsenaultc37fe662017-07-20 17:42:47 +0000701def HasAddNoCarryInsts : Predicate<"Subtarget->hasAddNoCarryInsts()">,
702 AssemblerPredicate<"FeatureAddNoCarryInsts">;
703
704def NotHasAddNoCarryInsts : Predicate<"!Subtarget->hasAddNoCarryInsts()">,
705 AssemblerPredicate<"!FeatureAddNoCarryInsts">;
706
Matt Arsenault9be7b0d2017-02-27 18:49:11 +0000707def Has16BitInsts : Predicate<"Subtarget->has16BitInsts()">,
708 AssemblerPredicate<"Feature16BitInsts">;
709def HasVOP3PInsts : Predicate<"Subtarget->hasVOP3PInsts()">,
710 AssemblerPredicate<"FeatureVOP3P">;
Tom Stellard115a6152016-11-10 16:02:37 +0000711
Sam Kolton07dbde22017-01-20 10:01:25 +0000712def HasSDWA : Predicate<"Subtarget->hasSDWA()">,
Sam Koltonf7659d712017-05-23 10:08:55 +0000713 AssemblerPredicate<"FeatureSDWA,FeatureVolcanicIslands">;
714
715def HasSDWA9 : Predicate<"Subtarget->hasSDWA()">,
716 AssemblerPredicate<"FeatureSDWA,FeatureGFX9">;
Sam Kolton07dbde22017-01-20 10:01:25 +0000717
718def HasDPP : Predicate<"Subtarget->hasDPP()">,
719 AssemblerPredicate<"FeatureDPP">;
720
Dmitry Preobrazhenskyff64aa52017-08-16 13:51:56 +0000721def HasIntClamp : Predicate<"Subtarget->hasIntClamp()">,
722 AssemblerPredicate<"FeatureIntClamp">;
723
Matt Arsenaultd7e23032017-09-07 18:05:07 +0000724def HasMadMix : Predicate<"Subtarget->hasMadMixInsts()">,
725 AssemblerPredicate<"FeatureGFX9Insts">;
726
Tom Stellard0e70de52014-05-16 20:56:45 +0000727class PredicateControl {
728 Predicate SubtargetPredicate;
Tom Stellardd1f0f022015-04-23 19:33:54 +0000729 Predicate SIAssemblerPredicate = isSICI;
Tom Stellard5ebdfbe2015-12-24 03:18:18 +0000730 Predicate VIAssemblerPredicate = isVI;
Tom Stellardd7e6f132015-04-08 01:09:26 +0000731 list<Predicate> AssemblerPredicates = [];
Tom Stellardd1f0f022015-04-23 19:33:54 +0000732 Predicate AssemblerPredicate = TruePredicate;
Tom Stellard0e70de52014-05-16 20:56:45 +0000733 list<Predicate> OtherPredicates = [];
Tom Stellardd1f0f022015-04-23 19:33:54 +0000734 list<Predicate> Predicates = !listconcat([SubtargetPredicate, AssemblerPredicate],
Tom Stellardd7e6f132015-04-08 01:09:26 +0000735 AssemblerPredicates,
Tom Stellard0e70de52014-05-16 20:56:45 +0000736 OtherPredicates);
737}
738
Tom Stellard75aadc22012-12-11 21:25:42 +0000739// Include AMDGPU TD files
740include "R600Schedule.td"
741include "SISchedule.td"
742include "Processors.td"
743include "AMDGPUInstrInfo.td"
744include "AMDGPUIntrinsics.td"
745include "AMDGPURegisterInfo.td"
Tom Stellardca166212017-01-30 21:56:46 +0000746include "AMDGPURegisterBanks.td"
Tom Stellard75aadc22012-12-11 21:25:42 +0000747include "AMDGPUInstructions.td"
Christian Konig2c8f6d52013-03-07 09:03:52 +0000748include "AMDGPUCallingConv.td"