1 | //===-- SPIRVGlobalRegistry.cpp - SPIR-V Global Registry --------*- C++ -*-===// |
2 | // |
3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
4 | // See https://llvm.org/LICENSE.txt for license information. |
5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
6 | // |
7 | //===----------------------------------------------------------------------===// |
8 | // |
9 | // This file contains the implementation of the SPIRVGlobalRegistry class, |
10 | // which is used to maintain rich type information required for SPIR-V even |
11 | // after lowering from LLVM IR to GMIR. It can convert an llvm::Type into |
12 | // an OpTypeXXX instruction, and map it to a virtual register. Also it builds |
13 | // and supports consistency of constants and global variables. |
14 | // |
15 | //===----------------------------------------------------------------------===// |
16 | |
17 | #include "SPIRVGlobalRegistry.h" |
18 | #include "SPIRV.h" |
19 | #include "SPIRVBuiltins.h" |
20 | #include "SPIRVSubtarget.h" |
21 | #include "SPIRVUtils.h" |
22 | #include "llvm/ADT/APInt.h" |
23 | #include "llvm/IR/Constants.h" |
24 | #include "llvm/IR/IntrinsicInst.h" |
25 | #include "llvm/IR/Intrinsics.h" |
26 | #include "llvm/IR/IntrinsicsSPIRV.h" |
27 | #include "llvm/IR/Type.h" |
28 | #include "llvm/Support/Casting.h" |
29 | #include "llvm/Support/MathExtras.h" |
30 | #include <cassert> |
31 | #include <functional> |
32 | |
33 | using namespace llvm; |
34 | |
35 | static bool allowEmitFakeUse(const Value *Arg) { |
36 | if (isSpvIntrinsic(Arg)) |
37 | return false; |
38 | if (isa<AtomicCmpXchgInst, InsertValueInst, UndefValue>(Val: Arg)) |
39 | return false; |
40 | if (const auto *LI = dyn_cast<LoadInst>(Val: Arg)) |
41 | if (LI->getType()->isAggregateType()) |
42 | return false; |
43 | return true; |
44 | } |
45 | |
46 | static unsigned typeToAddressSpace(const Type *Ty) { |
47 | if (auto PType = dyn_cast<TypedPointerType>(Val: Ty)) |
48 | return PType->getAddressSpace(); |
49 | if (auto PType = dyn_cast<PointerType>(Val: Ty)) |
50 | return PType->getAddressSpace(); |
51 | if (auto *ExtTy = dyn_cast<TargetExtType>(Val: Ty); |
52 | ExtTy && isTypedPointerWrapper(ExtTy)) |
53 | return ExtTy->getIntParameter(i: 0); |
54 | reportFatalInternalError(reason: "Unable to convert LLVM type to SPIRVType" ); |
55 | } |
56 | |
57 | static bool |
58 | storageClassRequiresExplictLayout(SPIRV::StorageClass::StorageClass SC) { |
59 | switch (SC) { |
60 | case SPIRV::StorageClass::Uniform: |
61 | case SPIRV::StorageClass::PushConstant: |
62 | case SPIRV::StorageClass::StorageBuffer: |
63 | case SPIRV::StorageClass::PhysicalStorageBufferEXT: |
64 | return true; |
65 | case SPIRV::StorageClass::UniformConstant: |
66 | case SPIRV::StorageClass::Input: |
67 | case SPIRV::StorageClass::Output: |
68 | case SPIRV::StorageClass::Workgroup: |
69 | case SPIRV::StorageClass::CrossWorkgroup: |
70 | case SPIRV::StorageClass::Private: |
71 | case SPIRV::StorageClass::Function: |
72 | case SPIRV::StorageClass::Generic: |
73 | case SPIRV::StorageClass::AtomicCounter: |
74 | case SPIRV::StorageClass::Image: |
75 | case SPIRV::StorageClass::CallableDataNV: |
76 | case SPIRV::StorageClass::IncomingCallableDataNV: |
77 | case SPIRV::StorageClass::RayPayloadNV: |
78 | case SPIRV::StorageClass::HitAttributeNV: |
79 | case SPIRV::StorageClass::IncomingRayPayloadNV: |
80 | case SPIRV::StorageClass::ShaderRecordBufferNV: |
81 | case SPIRV::StorageClass::CodeSectionINTEL: |
82 | case SPIRV::StorageClass::DeviceOnlyINTEL: |
83 | case SPIRV::StorageClass::HostOnlyINTEL: |
84 | return false; |
85 | } |
86 | llvm_unreachable("Unknown SPIRV::StorageClass enum" ); |
87 | } |
88 | |
89 | SPIRVGlobalRegistry::SPIRVGlobalRegistry(unsigned PointerSize) |
90 | : PointerSize(PointerSize), Bound(0) {} |
91 | |
92 | SPIRVType *SPIRVGlobalRegistry::assignIntTypeToVReg(unsigned BitWidth, |
93 | Register VReg, |
94 | MachineInstr &I, |
95 | const SPIRVInstrInfo &TII) { |
96 | SPIRVType *SpirvType = getOrCreateSPIRVIntegerType(BitWidth, I, TII); |
97 | assignSPIRVTypeToVReg(Type: SpirvType, VReg, MF: *CurMF); |
98 | return SpirvType; |
99 | } |
100 | |
101 | SPIRVType * |
102 | SPIRVGlobalRegistry::assignFloatTypeToVReg(unsigned BitWidth, Register VReg, |
103 | MachineInstr &I, |
104 | const SPIRVInstrInfo &TII) { |
105 | SPIRVType *SpirvType = getOrCreateSPIRVFloatType(BitWidth, I, TII); |
106 | assignSPIRVTypeToVReg(Type: SpirvType, VReg, MF: *CurMF); |
107 | return SpirvType; |
108 | } |
109 | |
110 | SPIRVType *SPIRVGlobalRegistry::assignVectTypeToVReg( |
111 | SPIRVType *BaseType, unsigned NumElements, Register VReg, MachineInstr &I, |
112 | const SPIRVInstrInfo &TII) { |
113 | SPIRVType *SpirvType = |
114 | getOrCreateSPIRVVectorType(BaseType, NumElements, I, TII); |
115 | assignSPIRVTypeToVReg(Type: SpirvType, VReg, MF: *CurMF); |
116 | return SpirvType; |
117 | } |
118 | |
119 | SPIRVType *SPIRVGlobalRegistry::assignTypeToVReg( |
120 | const Type *Type, Register VReg, MachineIRBuilder &MIRBuilder, |
121 | SPIRV::AccessQualifier::AccessQualifier AccessQual, bool EmitIR) { |
122 | SPIRVType *SpirvType = |
123 | getOrCreateSPIRVType(Type, MIRBuilder, AQ: AccessQual, EmitIR); |
124 | assignSPIRVTypeToVReg(Type: SpirvType, VReg, MF: MIRBuilder.getMF()); |
125 | return SpirvType; |
126 | } |
127 | |
128 | void SPIRVGlobalRegistry::assignSPIRVTypeToVReg(SPIRVType *SpirvType, |
129 | Register VReg, |
130 | const MachineFunction &MF) { |
131 | VRegToTypeMap[&MF][VReg] = SpirvType; |
132 | } |
133 | |
134 | static Register createTypeVReg(MachineRegisterInfo &MRI) { |
135 | auto Res = MRI.createGenericVirtualRegister(Ty: LLT::scalar(SizeInBits: 64)); |
136 | MRI.setRegClass(Reg: Res, RC: &SPIRV::TYPERegClass); |
137 | return Res; |
138 | } |
139 | |
140 | inline Register createTypeVReg(MachineIRBuilder &MIRBuilder) { |
141 | return createTypeVReg(MRI&: MIRBuilder.getMF().getRegInfo()); |
142 | } |
143 | |
144 | SPIRVType *SPIRVGlobalRegistry::getOpTypeBool(MachineIRBuilder &MIRBuilder) { |
145 | return createOpType(MIRBuilder, Op: [&](MachineIRBuilder &MIRBuilder) { |
146 | return MIRBuilder.buildInstr(Opcode: SPIRV::OpTypeBool) |
147 | .addDef(RegNo: createTypeVReg(MIRBuilder)); |
148 | }); |
149 | } |
150 | |
151 | unsigned SPIRVGlobalRegistry::adjustOpTypeIntWidth(unsigned Width) const { |
152 | if (Width > 64) |
153 | report_fatal_error(reason: "Unsupported integer width!" ); |
154 | const SPIRVSubtarget &ST = cast<SPIRVSubtarget>(Val: CurMF->getSubtarget()); |
155 | if (ST.canUseExtension( |
156 | E: SPIRV::Extension::SPV_INTEL_arbitrary_precision_integers) || |
157 | ST.canUseExtension(E: SPIRV::Extension::SPV_INTEL_int4)) |
158 | return Width; |
159 | if (Width <= 8) |
160 | Width = 8; |
161 | else if (Width <= 16) |
162 | Width = 16; |
163 | else if (Width <= 32) |
164 | Width = 32; |
165 | else |
166 | Width = 64; |
167 | return Width; |
168 | } |
169 | |
170 | SPIRVType *SPIRVGlobalRegistry::getOpTypeInt(unsigned Width, |
171 | MachineIRBuilder &MIRBuilder, |
172 | bool IsSigned) { |
173 | Width = adjustOpTypeIntWidth(Width); |
174 | const SPIRVSubtarget &ST = |
175 | cast<SPIRVSubtarget>(Val: MIRBuilder.getMF().getSubtarget()); |
176 | return createOpType(MIRBuilder, Op: [&](MachineIRBuilder &MIRBuilder) { |
177 | if (Width == 4 && ST.canUseExtension(E: SPIRV::Extension::SPV_INTEL_int4)) { |
178 | MIRBuilder.buildInstr(Opcode: SPIRV::OpExtension) |
179 | .addImm(Val: SPIRV::Extension::SPV_INTEL_int4); |
180 | MIRBuilder.buildInstr(Opcode: SPIRV::OpCapability) |
181 | .addImm(Val: SPIRV::Capability::Int4TypeINTEL); |
182 | } else if ((!isPowerOf2_32(Value: Width) || Width < 8) && |
183 | ST.canUseExtension( |
184 | E: SPIRV::Extension::SPV_INTEL_arbitrary_precision_integers)) { |
185 | MIRBuilder.buildInstr(Opcode: SPIRV::OpExtension) |
186 | .addImm(Val: SPIRV::Extension::SPV_INTEL_arbitrary_precision_integers); |
187 | MIRBuilder.buildInstr(Opcode: SPIRV::OpCapability) |
188 | .addImm(Val: SPIRV::Capability::ArbitraryPrecisionIntegersINTEL); |
189 | } |
190 | return MIRBuilder.buildInstr(Opcode: SPIRV::OpTypeInt) |
191 | .addDef(RegNo: createTypeVReg(MIRBuilder)) |
192 | .addImm(Val: Width) |
193 | .addImm(Val: IsSigned ? 1 : 0); |
194 | }); |
195 | } |
196 | |
197 | SPIRVType *SPIRVGlobalRegistry::getOpTypeFloat(uint32_t Width, |
198 | MachineIRBuilder &MIRBuilder) { |
199 | return createOpType(MIRBuilder, Op: [&](MachineIRBuilder &MIRBuilder) { |
200 | return MIRBuilder.buildInstr(Opcode: SPIRV::OpTypeFloat) |
201 | .addDef(RegNo: createTypeVReg(MIRBuilder)) |
202 | .addImm(Val: Width); |
203 | }); |
204 | } |
205 | |
206 | SPIRVType *SPIRVGlobalRegistry::getOpTypeVoid(MachineIRBuilder &MIRBuilder) { |
207 | return createOpType(MIRBuilder, Op: [&](MachineIRBuilder &MIRBuilder) { |
208 | return MIRBuilder.buildInstr(Opcode: SPIRV::OpTypeVoid) |
209 | .addDef(RegNo: createTypeVReg(MIRBuilder)); |
210 | }); |
211 | } |
212 | |
213 | void SPIRVGlobalRegistry::invalidateMachineInstr(MachineInstr *MI) { |
214 | // TODO: |
215 | // - review other data structure wrt. possible issues related to removal |
216 | // of a machine instruction during instruction selection. |
217 | const MachineFunction *MF = MI->getMF(); |
218 | auto It = LastInsertedTypeMap.find(Val: MF); |
219 | if (It == LastInsertedTypeMap.end()) |
220 | return; |
221 | if (It->second == MI) |
222 | LastInsertedTypeMap.erase(Val: MF); |
223 | // remove from the duplicate tracker to avoid incorrect reuse |
224 | erase(MI); |
225 | } |
226 | |
227 | SPIRVType *SPIRVGlobalRegistry::createOpType( |
228 | MachineIRBuilder &MIRBuilder, |
229 | std::function<MachineInstr *(MachineIRBuilder &)> Op) { |
230 | auto oldInsertPoint = MIRBuilder.getInsertPt(); |
231 | MachineBasicBlock *OldMBB = &MIRBuilder.getMBB(); |
232 | MachineBasicBlock *NewMBB = &*MIRBuilder.getMF().begin(); |
233 | |
234 | auto LastInsertedType = LastInsertedTypeMap.find(Val: CurMF); |
235 | if (LastInsertedType != LastInsertedTypeMap.end()) { |
236 | auto It = LastInsertedType->second->getIterator(); |
237 | // It might happen that this instruction was removed from the first MBB, |
238 | // hence the Parent's check. |
239 | MachineBasicBlock::iterator InsertAt; |
240 | if (It->getParent() != NewMBB) |
241 | InsertAt = oldInsertPoint->getParent() == NewMBB |
242 | ? oldInsertPoint |
243 | : getInsertPtValidEnd(MBB: NewMBB); |
244 | else if (It->getNextNode()) |
245 | InsertAt = It->getNextNode()->getIterator(); |
246 | else |
247 | InsertAt = getInsertPtValidEnd(MBB: NewMBB); |
248 | MIRBuilder.setInsertPt(MBB&: *NewMBB, II: InsertAt); |
249 | } else { |
250 | MIRBuilder.setInsertPt(MBB&: *NewMBB, II: NewMBB->begin()); |
251 | auto Result = LastInsertedTypeMap.try_emplace(Key: CurMF, Args: nullptr); |
252 | assert(Result.second); |
253 | LastInsertedType = Result.first; |
254 | } |
255 | |
256 | MachineInstr *Type = Op(MIRBuilder); |
257 | // We expect all users of this function to insert definitions at the insertion |
258 | // point set above that is always the first MBB. |
259 | assert(Type->getParent() == NewMBB); |
260 | LastInsertedType->second = Type; |
261 | |
262 | MIRBuilder.setInsertPt(MBB&: *OldMBB, II: oldInsertPoint); |
263 | return Type; |
264 | } |
265 | |
266 | SPIRVType *SPIRVGlobalRegistry::getOpTypeVector(uint32_t NumElems, |
267 | SPIRVType *ElemType, |
268 | MachineIRBuilder &MIRBuilder) { |
269 | auto EleOpc = ElemType->getOpcode(); |
270 | (void)EleOpc; |
271 | assert((EleOpc == SPIRV::OpTypeInt || EleOpc == SPIRV::OpTypeFloat || |
272 | EleOpc == SPIRV::OpTypeBool) && |
273 | "Invalid vector element type" ); |
274 | |
275 | return createOpType(MIRBuilder, Op: [&](MachineIRBuilder &MIRBuilder) { |
276 | return MIRBuilder.buildInstr(Opcode: SPIRV::OpTypeVector) |
277 | .addDef(RegNo: createTypeVReg(MIRBuilder)) |
278 | .addUse(RegNo: getSPIRVTypeID(SpirvType: ElemType)) |
279 | .addImm(Val: NumElems); |
280 | }); |
281 | } |
282 | |
283 | Register SPIRVGlobalRegistry::getOrCreateConstFP(APFloat Val, MachineInstr &I, |
284 | SPIRVType *SpvType, |
285 | const SPIRVInstrInfo &TII, |
286 | bool ZeroAsNull) { |
287 | LLVMContext &Ctx = CurMF->getFunction().getContext(); |
288 | auto *const CF = ConstantFP::get(Context&: Ctx, V: Val); |
289 | const MachineInstr *MI = findMI(Obj: CF, MF: CurMF); |
290 | if (MI && (MI->getOpcode() == SPIRV::OpConstantNull || |
291 | MI->getOpcode() == SPIRV::OpConstantF)) |
292 | return MI->getOperand(i: 0).getReg(); |
293 | return createConstFP(CF, I, SpvType, TII, ZeroAsNull); |
294 | } |
295 | |
296 | Register SPIRVGlobalRegistry::createConstFP(const ConstantFP *CF, |
297 | MachineInstr &I, SPIRVType *SpvType, |
298 | const SPIRVInstrInfo &TII, |
299 | bool ZeroAsNull) { |
300 | unsigned BitWidth = getScalarOrVectorBitWidth(Type: SpvType); |
301 | LLT LLTy = LLT::scalar(SizeInBits: BitWidth); |
302 | Register Res = CurMF->getRegInfo().createGenericVirtualRegister(Ty: LLTy); |
303 | CurMF->getRegInfo().setRegClass(Reg: Res, RC: &SPIRV::fIDRegClass); |
304 | assignFloatTypeToVReg(BitWidth, VReg: Res, I, TII); |
305 | |
306 | MachineInstr *DepMI = const_cast<MachineInstr *>(SpvType); |
307 | MachineIRBuilder MIRBuilder(*DepMI->getParent(), DepMI->getIterator()); |
308 | SPIRVType *NewType = |
309 | createOpType(MIRBuilder, Op: [&](MachineIRBuilder &MIRBuilder) { |
310 | MachineInstrBuilder MIB; |
311 | // In OpenCL OpConstantNull - Scalar floating point: +0.0 (all bits 0) |
312 | if (CF->getValue().isPosZero() && ZeroAsNull) { |
313 | MIB = MIRBuilder.buildInstr(Opcode: SPIRV::OpConstantNull) |
314 | .addDef(RegNo: Res) |
315 | .addUse(RegNo: getSPIRVTypeID(SpirvType: SpvType)); |
316 | } else { |
317 | MIB = MIRBuilder.buildInstr(Opcode: SPIRV::OpConstantF) |
318 | .addDef(RegNo: Res) |
319 | .addUse(RegNo: getSPIRVTypeID(SpirvType: SpvType)); |
320 | addNumImm(Imm: APInt(BitWidth, |
321 | CF->getValueAPF().bitcastToAPInt().getZExtValue()), |
322 | MIB); |
323 | } |
324 | const auto &ST = CurMF->getSubtarget(); |
325 | constrainSelectedInstRegOperands(I&: *MIB, TII: *ST.getInstrInfo(), |
326 | TRI: *ST.getRegisterInfo(), |
327 | RBI: *ST.getRegBankInfo()); |
328 | return MIB; |
329 | }); |
330 | add(V: CF, MI: NewType); |
331 | return Res; |
332 | } |
333 | |
334 | Register SPIRVGlobalRegistry::getOrCreateConstInt(uint64_t Val, MachineInstr &I, |
335 | SPIRVType *SpvType, |
336 | const SPIRVInstrInfo &TII, |
337 | bool ZeroAsNull) { |
338 | const IntegerType *Ty = cast<IntegerType>(Val: getTypeForSPIRVType(Ty: SpvType)); |
339 | auto *const CI = ConstantInt::get(Ty: const_cast<IntegerType *>(Ty), V: Val); |
340 | const MachineInstr *MI = findMI(Obj: CI, MF: CurMF); |
341 | if (MI && (MI->getOpcode() == SPIRV::OpConstantNull || |
342 | MI->getOpcode() == SPIRV::OpConstantI)) |
343 | return MI->getOperand(i: 0).getReg(); |
344 | return createConstInt(CI, I, SpvType, TII, ZeroAsNull); |
345 | } |
346 | |
347 | Register SPIRVGlobalRegistry::createConstInt(const ConstantInt *CI, |
348 | MachineInstr &I, |
349 | SPIRVType *SpvType, |
350 | const SPIRVInstrInfo &TII, |
351 | bool ZeroAsNull) { |
352 | unsigned BitWidth = getScalarOrVectorBitWidth(Type: SpvType); |
353 | LLT LLTy = LLT::scalar(SizeInBits: BitWidth); |
354 | Register Res = CurMF->getRegInfo().createGenericVirtualRegister(Ty: LLTy); |
355 | CurMF->getRegInfo().setRegClass(Reg: Res, RC: &SPIRV::iIDRegClass); |
356 | assignIntTypeToVReg(BitWidth, VReg: Res, I, TII); |
357 | |
358 | MachineInstr *DepMI = const_cast<MachineInstr *>(SpvType); |
359 | MachineIRBuilder MIRBuilder(*DepMI->getParent(), DepMI->getIterator()); |
360 | SPIRVType *NewType = |
361 | createOpType(MIRBuilder, Op: [&](MachineIRBuilder &MIRBuilder) { |
362 | MachineInstrBuilder MIB; |
363 | if (BitWidth == 1) { |
364 | MIB = MIRBuilder |
365 | .buildInstr(Opcode: CI->isZero() ? SPIRV::OpConstantFalse |
366 | : SPIRV::OpConstantTrue) |
367 | .addDef(RegNo: Res) |
368 | .addUse(RegNo: getSPIRVTypeID(SpirvType: SpvType)); |
369 | } else if (!CI->isZero() || !ZeroAsNull) { |
370 | MIB = MIRBuilder.buildInstr(Opcode: SPIRV::OpConstantI) |
371 | .addDef(RegNo: Res) |
372 | .addUse(RegNo: getSPIRVTypeID(SpirvType: SpvType)); |
373 | addNumImm(Imm: APInt(BitWidth, CI->getZExtValue()), MIB); |
374 | } else { |
375 | MIB = MIRBuilder.buildInstr(Opcode: SPIRV::OpConstantNull) |
376 | .addDef(RegNo: Res) |
377 | .addUse(RegNo: getSPIRVTypeID(SpirvType: SpvType)); |
378 | } |
379 | const auto &ST = CurMF->getSubtarget(); |
380 | constrainSelectedInstRegOperands(I&: *MIB, TII: *ST.getInstrInfo(), |
381 | TRI: *ST.getRegisterInfo(), |
382 | RBI: *ST.getRegBankInfo()); |
383 | return MIB; |
384 | }); |
385 | add(V: CI, MI: NewType); |
386 | return Res; |
387 | } |
388 | |
389 | Register SPIRVGlobalRegistry::buildConstantInt(uint64_t Val, |
390 | MachineIRBuilder &MIRBuilder, |
391 | SPIRVType *SpvType, bool EmitIR, |
392 | bool ZeroAsNull) { |
393 | assert(SpvType); |
394 | auto &MF = MIRBuilder.getMF(); |
395 | const IntegerType *Ty = cast<IntegerType>(Val: getTypeForSPIRVType(Ty: SpvType)); |
396 | auto *const CI = ConstantInt::get(Ty: const_cast<IntegerType *>(Ty), V: Val); |
397 | Register Res = find(V: CI, MF: &MF); |
398 | if (Res.isValid()) |
399 | return Res; |
400 | |
401 | unsigned BitWidth = getScalarOrVectorBitWidth(Type: SpvType); |
402 | LLT LLTy = LLT::scalar(SizeInBits: BitWidth); |
403 | MachineRegisterInfo &MRI = MF.getRegInfo(); |
404 | Res = MRI.createGenericVirtualRegister(Ty: LLTy); |
405 | MRI.setRegClass(Reg: Res, RC: &SPIRV::iIDRegClass); |
406 | assignTypeToVReg(Type: Ty, VReg: Res, MIRBuilder, AccessQual: SPIRV::AccessQualifier::ReadWrite, |
407 | EmitIR); |
408 | |
409 | SPIRVType *NewType = |
410 | createOpType(MIRBuilder, Op: [&](MachineIRBuilder &MIRBuilder) { |
411 | if (EmitIR) |
412 | return MIRBuilder.buildConstant(Res, Val: *CI); |
413 | Register SpvTypeReg = getSPIRVTypeID(SpirvType: SpvType); |
414 | MachineInstrBuilder MIB; |
415 | if (Val || !ZeroAsNull) { |
416 | MIB = MIRBuilder.buildInstr(Opcode: SPIRV::OpConstantI) |
417 | .addDef(RegNo: Res) |
418 | .addUse(RegNo: SpvTypeReg); |
419 | addNumImm(Imm: APInt(BitWidth, Val), MIB); |
420 | } else { |
421 | MIB = MIRBuilder.buildInstr(Opcode: SPIRV::OpConstantNull) |
422 | .addDef(RegNo: Res) |
423 | .addUse(RegNo: SpvTypeReg); |
424 | } |
425 | const auto &Subtarget = CurMF->getSubtarget(); |
426 | constrainSelectedInstRegOperands(I&: *MIB, TII: *Subtarget.getInstrInfo(), |
427 | TRI: *Subtarget.getRegisterInfo(), |
428 | RBI: *Subtarget.getRegBankInfo()); |
429 | return MIB; |
430 | }); |
431 | add(V: CI, MI: NewType); |
432 | return Res; |
433 | } |
434 | |
435 | Register SPIRVGlobalRegistry::buildConstantFP(APFloat Val, |
436 | MachineIRBuilder &MIRBuilder, |
437 | SPIRVType *SpvType) { |
438 | auto &MF = MIRBuilder.getMF(); |
439 | LLVMContext &Ctx = MF.getFunction().getContext(); |
440 | if (!SpvType) |
441 | SpvType = getOrCreateSPIRVType(Type: Type::getFloatTy(C&: Ctx), MIRBuilder, |
442 | AQ: SPIRV::AccessQualifier::ReadWrite, EmitIR: true); |
443 | auto *const CF = ConstantFP::get(Context&: Ctx, V: Val); |
444 | Register Res = find(V: CF, MF: &MF); |
445 | if (Res.isValid()) |
446 | return Res; |
447 | |
448 | LLT LLTy = LLT::scalar(SizeInBits: getScalarOrVectorBitWidth(Type: SpvType)); |
449 | Res = MF.getRegInfo().createGenericVirtualRegister(Ty: LLTy); |
450 | MF.getRegInfo().setRegClass(Reg: Res, RC: &SPIRV::fIDRegClass); |
451 | assignSPIRVTypeToVReg(SpirvType: SpvType, VReg: Res, MF); |
452 | |
453 | SPIRVType *NewType = |
454 | createOpType(MIRBuilder, Op: [&](MachineIRBuilder &MIRBuilder) { |
455 | MachineInstrBuilder MIB; |
456 | MIB = MIRBuilder.buildInstr(Opcode: SPIRV::OpConstantF) |
457 | .addDef(RegNo: Res) |
458 | .addUse(RegNo: getSPIRVTypeID(SpirvType: SpvType)); |
459 | addNumImm(Imm: CF->getValueAPF().bitcastToAPInt(), MIB); |
460 | return MIB; |
461 | }); |
462 | add(V: CF, MI: NewType); |
463 | return Res; |
464 | } |
465 | |
466 | Register SPIRVGlobalRegistry::getOrCreateBaseRegister( |
467 | Constant *Val, MachineInstr &I, SPIRVType *SpvType, |
468 | const SPIRVInstrInfo &TII, unsigned BitWidth, bool ZeroAsNull) { |
469 | SPIRVType *Type = SpvType; |
470 | if (SpvType->getOpcode() == SPIRV::OpTypeVector || |
471 | SpvType->getOpcode() == SPIRV::OpTypeArray) { |
472 | auto EleTypeReg = SpvType->getOperand(i: 1).getReg(); |
473 | Type = getSPIRVTypeForVReg(VReg: EleTypeReg); |
474 | } |
475 | if (Type->getOpcode() == SPIRV::OpTypeFloat) { |
476 | SPIRVType *SpvBaseType = getOrCreateSPIRVFloatType(BitWidth, I, TII); |
477 | return getOrCreateConstFP(Val: dyn_cast<ConstantFP>(Val)->getValue(), I, |
478 | SpvType: SpvBaseType, TII, ZeroAsNull); |
479 | } |
480 | assert(Type->getOpcode() == SPIRV::OpTypeInt); |
481 | SPIRVType *SpvBaseType = getOrCreateSPIRVIntegerType(BitWidth, I, TII); |
482 | return getOrCreateConstInt(Val: Val->getUniqueInteger().getZExtValue(), I, |
483 | SpvType: SpvBaseType, TII, ZeroAsNull); |
484 | } |
485 | |
486 | Register SPIRVGlobalRegistry::getOrCreateCompositeOrNull( |
487 | Constant *Val, MachineInstr &I, SPIRVType *SpvType, |
488 | const SPIRVInstrInfo &TII, Constant *CA, unsigned BitWidth, |
489 | unsigned ElemCnt, bool ZeroAsNull) { |
490 | if (Register R = find(V: CA, MF: CurMF); R.isValid()) |
491 | return R; |
492 | |
493 | bool IsNull = Val->isNullValue() && ZeroAsNull; |
494 | Register ElemReg; |
495 | if (!IsNull) |
496 | ElemReg = |
497 | getOrCreateBaseRegister(Val, I, SpvType, TII, BitWidth, ZeroAsNull); |
498 | |
499 | LLT LLTy = LLT::scalar(SizeInBits: 64); |
500 | Register Res = CurMF->getRegInfo().createGenericVirtualRegister(Ty: LLTy); |
501 | CurMF->getRegInfo().setRegClass(Reg: Res, RC: getRegClass(SpvType)); |
502 | assignSPIRVTypeToVReg(SpirvType: SpvType, VReg: Res, MF: *CurMF); |
503 | |
504 | MachineInstr *DepMI = const_cast<MachineInstr *>(SpvType); |
505 | MachineIRBuilder MIRBuilder(*DepMI->getParent(), DepMI->getIterator()); |
506 | const MachineInstr *NewMI = |
507 | createOpType(MIRBuilder, Op: [&](MachineIRBuilder &MIRBuilder) { |
508 | MachineInstrBuilder MIB; |
509 | if (!IsNull) { |
510 | MIB = MIRBuilder.buildInstr(Opcode: SPIRV::OpConstantComposite) |
511 | .addDef(RegNo: Res) |
512 | .addUse(RegNo: getSPIRVTypeID(SpirvType: SpvType)); |
513 | for (unsigned i = 0; i < ElemCnt; ++i) |
514 | MIB.addUse(RegNo: ElemReg); |
515 | } else { |
516 | MIB = MIRBuilder.buildInstr(Opcode: SPIRV::OpConstantNull) |
517 | .addDef(RegNo: Res) |
518 | .addUse(RegNo: getSPIRVTypeID(SpirvType: SpvType)); |
519 | } |
520 | const auto &Subtarget = CurMF->getSubtarget(); |
521 | constrainSelectedInstRegOperands(I&: *MIB, TII: *Subtarget.getInstrInfo(), |
522 | TRI: *Subtarget.getRegisterInfo(), |
523 | RBI: *Subtarget.getRegBankInfo()); |
524 | return MIB; |
525 | }); |
526 | add(V: CA, MI: NewMI); |
527 | return Res; |
528 | } |
529 | |
530 | Register SPIRVGlobalRegistry::getOrCreateConstVector(uint64_t Val, |
531 | MachineInstr &I, |
532 | SPIRVType *SpvType, |
533 | const SPIRVInstrInfo &TII, |
534 | bool ZeroAsNull) { |
535 | const Type *LLVMTy = getTypeForSPIRVType(Ty: SpvType); |
536 | assert(LLVMTy->isVectorTy()); |
537 | const FixedVectorType *LLVMVecTy = cast<FixedVectorType>(Val: LLVMTy); |
538 | Type *LLVMBaseTy = LLVMVecTy->getElementType(); |
539 | assert(LLVMBaseTy->isIntegerTy()); |
540 | auto *ConstVal = ConstantInt::get(Ty: LLVMBaseTy, V: Val); |
541 | auto *ConstVec = |
542 | ConstantVector::getSplat(EC: LLVMVecTy->getElementCount(), Elt: ConstVal); |
543 | unsigned BW = getScalarOrVectorBitWidth(Type: SpvType); |
544 | return getOrCreateCompositeOrNull(Val: ConstVal, I, SpvType, TII, CA: ConstVec, BitWidth: BW, |
545 | ElemCnt: SpvType->getOperand(i: 2).getImm(), |
546 | ZeroAsNull); |
547 | } |
548 | |
549 | Register SPIRVGlobalRegistry::getOrCreateConstVector(APFloat Val, |
550 | MachineInstr &I, |
551 | SPIRVType *SpvType, |
552 | const SPIRVInstrInfo &TII, |
553 | bool ZeroAsNull) { |
554 | const Type *LLVMTy = getTypeForSPIRVType(Ty: SpvType); |
555 | assert(LLVMTy->isVectorTy()); |
556 | const FixedVectorType *LLVMVecTy = cast<FixedVectorType>(Val: LLVMTy); |
557 | Type *LLVMBaseTy = LLVMVecTy->getElementType(); |
558 | assert(LLVMBaseTy->isFloatingPointTy()); |
559 | auto *ConstVal = ConstantFP::get(Ty: LLVMBaseTy, V: Val); |
560 | auto *ConstVec = |
561 | ConstantVector::getSplat(EC: LLVMVecTy->getElementCount(), Elt: ConstVal); |
562 | unsigned BW = getScalarOrVectorBitWidth(Type: SpvType); |
563 | return getOrCreateCompositeOrNull(Val: ConstVal, I, SpvType, TII, CA: ConstVec, BitWidth: BW, |
564 | ElemCnt: SpvType->getOperand(i: 2).getImm(), |
565 | ZeroAsNull); |
566 | } |
567 | |
568 | Register SPIRVGlobalRegistry::getOrCreateConstIntArray( |
569 | uint64_t Val, size_t Num, MachineInstr &I, SPIRVType *SpvType, |
570 | const SPIRVInstrInfo &TII) { |
571 | const Type *LLVMTy = getTypeForSPIRVType(Ty: SpvType); |
572 | assert(LLVMTy->isArrayTy()); |
573 | const ArrayType *LLVMArrTy = cast<ArrayType>(Val: LLVMTy); |
574 | Type *LLVMBaseTy = LLVMArrTy->getElementType(); |
575 | Constant *CI = ConstantInt::get(Ty: LLVMBaseTy, V: Val); |
576 | SPIRVType *SpvBaseTy = getSPIRVTypeForVReg(VReg: SpvType->getOperand(i: 1).getReg()); |
577 | unsigned BW = getScalarOrVectorBitWidth(Type: SpvBaseTy); |
578 | // The following is reasonably unique key that is better that [Val]. The naive |
579 | // alternative would be something along the lines of: |
580 | // SmallVector<Constant *> NumCI(Num, CI); |
581 | // Constant *UniqueKey = |
582 | // ConstantArray::get(const_cast<ArrayType*>(LLVMArrTy), NumCI); |
583 | // that would be a truly unique but dangerous key, because it could lead to |
584 | // the creation of constants of arbitrary length (that is, the parameter of |
585 | // memset) which were missing in the original module. |
586 | Constant *UniqueKey = ConstantStruct::getAnon( |
587 | V: {PoisonValue::get(T: const_cast<ArrayType *>(LLVMArrTy)), |
588 | ConstantInt::get(Ty: LLVMBaseTy, V: Val), ConstantInt::get(Ty: LLVMBaseTy, V: Num)}); |
589 | return getOrCreateCompositeOrNull(Val: CI, I, SpvType, TII, CA: UniqueKey, BitWidth: BW, |
590 | ElemCnt: LLVMArrTy->getNumElements()); |
591 | } |
592 | |
593 | Register SPIRVGlobalRegistry::getOrCreateIntCompositeOrNull( |
594 | uint64_t Val, MachineIRBuilder &MIRBuilder, SPIRVType *SpvType, bool EmitIR, |
595 | Constant *CA, unsigned BitWidth, unsigned ElemCnt) { |
596 | if (Register R = find(V: CA, MF: CurMF); R.isValid()) |
597 | return R; |
598 | |
599 | Register ElemReg; |
600 | if (Val || EmitIR) { |
601 | SPIRVType *SpvBaseType = getOrCreateSPIRVIntegerType(BitWidth, MIRBuilder); |
602 | ElemReg = buildConstantInt(Val, MIRBuilder, SpvType: SpvBaseType, EmitIR); |
603 | } |
604 | LLT LLTy = EmitIR ? LLT::fixed_vector(NumElements: ElemCnt, ScalarSizeInBits: BitWidth) : LLT::scalar(SizeInBits: 64); |
605 | Register Res = CurMF->getRegInfo().createGenericVirtualRegister(Ty: LLTy); |
606 | CurMF->getRegInfo().setRegClass(Reg: Res, RC: &SPIRV::iIDRegClass); |
607 | assignSPIRVTypeToVReg(SpirvType: SpvType, VReg: Res, MF: *CurMF); |
608 | |
609 | const MachineInstr *NewMI = |
610 | createOpType(MIRBuilder, Op: [&](MachineIRBuilder &MIRBuilder) { |
611 | if (EmitIR) |
612 | return MIRBuilder.buildSplatBuildVector(Res, Src: ElemReg); |
613 | |
614 | if (Val) { |
615 | auto MIB = MIRBuilder.buildInstr(Opcode: SPIRV::OpConstantComposite) |
616 | .addDef(RegNo: Res) |
617 | .addUse(RegNo: getSPIRVTypeID(SpirvType: SpvType)); |
618 | for (unsigned i = 0; i < ElemCnt; ++i) |
619 | MIB.addUse(RegNo: ElemReg); |
620 | return MIB; |
621 | } |
622 | |
623 | return MIRBuilder.buildInstr(Opcode: SPIRV::OpConstantNull) |
624 | .addDef(RegNo: Res) |
625 | .addUse(RegNo: getSPIRVTypeID(SpirvType: SpvType)); |
626 | }); |
627 | add(V: CA, MI: NewMI); |
628 | return Res; |
629 | } |
630 | |
631 | Register |
632 | SPIRVGlobalRegistry::getOrCreateConsIntVector(uint64_t Val, |
633 | MachineIRBuilder &MIRBuilder, |
634 | SPIRVType *SpvType, bool EmitIR) { |
635 | const Type *LLVMTy = getTypeForSPIRVType(Ty: SpvType); |
636 | assert(LLVMTy->isVectorTy()); |
637 | const FixedVectorType *LLVMVecTy = cast<FixedVectorType>(Val: LLVMTy); |
638 | Type *LLVMBaseTy = LLVMVecTy->getElementType(); |
639 | const auto ConstInt = ConstantInt::get(Ty: LLVMBaseTy, V: Val); |
640 | auto ConstVec = |
641 | ConstantVector::getSplat(EC: LLVMVecTy->getElementCount(), Elt: ConstInt); |
642 | unsigned BW = getScalarOrVectorBitWidth(Type: SpvType); |
643 | return getOrCreateIntCompositeOrNull(Val, MIRBuilder, SpvType, EmitIR, |
644 | CA: ConstVec, BitWidth: BW, |
645 | ElemCnt: SpvType->getOperand(i: 2).getImm()); |
646 | } |
647 | |
648 | Register |
649 | SPIRVGlobalRegistry::getOrCreateConstNullPtr(MachineIRBuilder &MIRBuilder, |
650 | SPIRVType *SpvType) { |
651 | const Type *Ty = getTypeForSPIRVType(Ty: SpvType); |
652 | unsigned AddressSpace = typeToAddressSpace(Ty); |
653 | Type *ElemTy = ::getPointeeType(Ty); |
654 | assert(ElemTy); |
655 | const Constant *CP = ConstantTargetNone::get( |
656 | T: dyn_cast<TargetExtType>(Val: getTypedPointerWrapper(ElemTy, AS: AddressSpace))); |
657 | Register Res = find(V: CP, MF: CurMF); |
658 | if (Res.isValid()) |
659 | return Res; |
660 | |
661 | LLT LLTy = LLT::pointer(AddressSpace, SizeInBits: PointerSize); |
662 | Res = CurMF->getRegInfo().createGenericVirtualRegister(Ty: LLTy); |
663 | CurMF->getRegInfo().setRegClass(Reg: Res, RC: &SPIRV::pIDRegClass); |
664 | assignSPIRVTypeToVReg(SpirvType: SpvType, VReg: Res, MF: *CurMF); |
665 | |
666 | const MachineInstr *NewMI = |
667 | createOpType(MIRBuilder, Op: [&](MachineIRBuilder &MIRBuilder) { |
668 | return MIRBuilder.buildInstr(Opcode: SPIRV::OpConstantNull) |
669 | .addDef(RegNo: Res) |
670 | .addUse(RegNo: getSPIRVTypeID(SpirvType: SpvType)); |
671 | }); |
672 | add(V: CP, MI: NewMI); |
673 | return Res; |
674 | } |
675 | |
676 | Register |
677 | SPIRVGlobalRegistry::buildConstantSampler(Register ResReg, unsigned AddrMode, |
678 | unsigned Param, unsigned FilerMode, |
679 | MachineIRBuilder &MIRBuilder) { |
680 | auto Sampler = |
681 | ResReg.isValid() |
682 | ? ResReg |
683 | : MIRBuilder.getMRI()->createVirtualRegister(RegClass: &SPIRV::iIDRegClass); |
684 | SPIRVType *TypeSampler = getOrCreateOpTypeSampler(MIRBuilder); |
685 | Register TypeSamplerReg = getSPIRVTypeID(SpirvType: TypeSampler); |
686 | // We cannot use createOpType() logic here, because of the |
687 | // GlobalISel/IRTranslator.cpp check for a tail call that expects that |
688 | // MIRBuilder.getInsertPt() has a previous instruction. If this constant is |
689 | // inserted as a result of "__translate_sampler_initializer()" this would |
690 | // break this IRTranslator assumption. |
691 | MIRBuilder.buildInstr(Opcode: SPIRV::OpConstantSampler) |
692 | .addDef(RegNo: Sampler) |
693 | .addUse(RegNo: TypeSamplerReg) |
694 | .addImm(Val: AddrMode) |
695 | .addImm(Val: Param) |
696 | .addImm(Val: FilerMode); |
697 | return Sampler; |
698 | } |
699 | |
700 | Register SPIRVGlobalRegistry::buildGlobalVariable( |
701 | Register ResVReg, SPIRVType *BaseType, StringRef Name, |
702 | const GlobalValue *GV, SPIRV::StorageClass::StorageClass Storage, |
703 | const MachineInstr *Init, bool IsConst, bool HasLinkageTy, |
704 | SPIRV::LinkageType::LinkageType LinkageType, MachineIRBuilder &MIRBuilder, |
705 | bool IsInstSelector) { |
706 | const GlobalVariable *GVar = nullptr; |
707 | if (GV) { |
708 | GVar = cast<const GlobalVariable>(Val: GV); |
709 | } else { |
710 | // If GV is not passed explicitly, use the name to find or construct |
711 | // the global variable. |
712 | Module *M = MIRBuilder.getMF().getFunction().getParent(); |
713 | GVar = M->getGlobalVariable(Name); |
714 | if (GVar == nullptr) { |
715 | const Type *Ty = getTypeForSPIRVType(Ty: BaseType); // TODO: check type. |
716 | // Module takes ownership of the global var. |
717 | GVar = new GlobalVariable(*M, const_cast<Type *>(Ty), false, |
718 | GlobalValue::ExternalLinkage, nullptr, |
719 | Twine(Name)); |
720 | } |
721 | GV = GVar; |
722 | } |
723 | |
724 | const MachineFunction *MF = &MIRBuilder.getMF(); |
725 | Register Reg = find(V: GVar, MF); |
726 | if (Reg.isValid()) { |
727 | if (Reg != ResVReg) |
728 | MIRBuilder.buildCopy(Res: ResVReg, Op: Reg); |
729 | return ResVReg; |
730 | } |
731 | |
732 | auto MIB = MIRBuilder.buildInstr(Opcode: SPIRV::OpVariable) |
733 | .addDef(RegNo: ResVReg) |
734 | .addUse(RegNo: getSPIRVTypeID(SpirvType: BaseType)) |
735 | .addImm(Val: static_cast<uint32_t>(Storage)); |
736 | if (Init != 0) |
737 | MIB.addUse(RegNo: Init->getOperand(i: 0).getReg()); |
738 | // ISel may introduce a new register on this step, so we need to add it to |
739 | // DT and correct its type avoiding fails on the next stage. |
740 | if (IsInstSelector) { |
741 | const auto &Subtarget = CurMF->getSubtarget(); |
742 | constrainSelectedInstRegOperands(I&: *MIB, TII: *Subtarget.getInstrInfo(), |
743 | TRI: *Subtarget.getRegisterInfo(), |
744 | RBI: *Subtarget.getRegBankInfo()); |
745 | } |
746 | add(V: GVar, MI: MIB); |
747 | |
748 | Reg = MIB->getOperand(i: 0).getReg(); |
749 | addGlobalObject(V: GVar, MF, R: Reg); |
750 | |
751 | // Set to Reg the same type as ResVReg has. |
752 | auto MRI = MIRBuilder.getMRI(); |
753 | if (Reg != ResVReg) { |
754 | LLT RegLLTy = |
755 | LLT::pointer(AddressSpace: MRI->getType(Reg: ResVReg).getAddressSpace(), SizeInBits: getPointerSize()); |
756 | MRI->setType(VReg: Reg, Ty: RegLLTy); |
757 | assignSPIRVTypeToVReg(SpirvType: BaseType, VReg: Reg, MF: MIRBuilder.getMF()); |
758 | } else { |
759 | // Our knowledge about the type may be updated. |
760 | // If that's the case, we need to update a type |
761 | // associated with the register. |
762 | SPIRVType *DefType = getSPIRVTypeForVReg(VReg: ResVReg); |
763 | if (!DefType || DefType != BaseType) |
764 | assignSPIRVTypeToVReg(SpirvType: BaseType, VReg: Reg, MF: MIRBuilder.getMF()); |
765 | } |
766 | |
767 | // If it's a global variable with name, output OpName for it. |
768 | if (GVar && GVar->hasName()) |
769 | buildOpName(Target: Reg, Name: GVar->getName(), MIRBuilder); |
770 | |
771 | // Output decorations for the GV. |
772 | // TODO: maybe move to GenerateDecorations pass. |
773 | const SPIRVSubtarget &ST = |
774 | cast<SPIRVSubtarget>(Val: MIRBuilder.getMF().getSubtarget()); |
775 | if (IsConst && !ST.isShader()) |
776 | buildOpDecorate(Reg, MIRBuilder, Dec: SPIRV::Decoration::Constant, DecArgs: {}); |
777 | |
778 | if (GVar && GVar->getAlign().valueOrOne().value() != 1 && !ST.isShader()) { |
779 | unsigned Alignment = (unsigned)GVar->getAlign().valueOrOne().value(); |
780 | buildOpDecorate(Reg, MIRBuilder, Dec: SPIRV::Decoration::Alignment, DecArgs: {Alignment}); |
781 | } |
782 | |
783 | if (HasLinkageTy) |
784 | buildOpDecorate(Reg, MIRBuilder, Dec: SPIRV::Decoration::LinkageAttributes, |
785 | DecArgs: {static_cast<uint32_t>(LinkageType)}, StrImm: Name); |
786 | |
787 | SPIRV::BuiltIn::BuiltIn BuiltInId; |
788 | if (getSpirvBuiltInIdByName(Name, BI&: BuiltInId)) |
789 | buildOpDecorate(Reg, MIRBuilder, Dec: SPIRV::Decoration::BuiltIn, |
790 | DecArgs: {static_cast<uint32_t>(BuiltInId)}); |
791 | |
792 | // If it's a global variable with "spirv.Decorations" metadata node |
793 | // recognize it as a SPIR-V friendly LLVM IR and parse "spirv.Decorations" |
794 | // arguments. |
795 | MDNode *GVarMD = nullptr; |
796 | if (GVar && (GVarMD = GVar->getMetadata(Kind: "spirv.Decorations" )) != nullptr) |
797 | buildOpSpirvDecorations(Reg, MIRBuilder, GVarMD); |
798 | |
799 | return Reg; |
800 | } |
801 | |
802 | // Returns a name based on the Type. Notes that this does not look at |
803 | // decorations, and will return the same string for two types that are the same |
804 | // except for decorations. |
805 | Register SPIRVGlobalRegistry::getOrCreateGlobalVariableWithBinding( |
806 | const SPIRVType *VarType, uint32_t Set, uint32_t Binding, StringRef Name, |
807 | MachineIRBuilder &MIRBuilder) { |
808 | Register VarReg = |
809 | MIRBuilder.getMRI()->createVirtualRegister(RegClass: &SPIRV::iIDRegClass); |
810 | |
811 | buildGlobalVariable(ResVReg: VarReg, BaseType: VarType, Name, GV: nullptr, |
812 | Storage: getPointerStorageClass(Type: VarType), Init: nullptr, IsConst: false, HasLinkageTy: false, |
813 | LinkageType: SPIRV::LinkageType::Import, MIRBuilder, IsInstSelector: false); |
814 | |
815 | buildOpDecorate(Reg: VarReg, MIRBuilder, Dec: SPIRV::Decoration::DescriptorSet, DecArgs: {Set}); |
816 | buildOpDecorate(Reg: VarReg, MIRBuilder, Dec: SPIRV::Decoration::Binding, DecArgs: {Binding}); |
817 | return VarReg; |
818 | } |
819 | |
820 | // TODO: Double check the calls to getOpTypeArray to make sure that `ElemType` |
821 | // is explicitly laid out when required. |
822 | SPIRVType *SPIRVGlobalRegistry::getOpTypeArray(uint32_t NumElems, |
823 | SPIRVType *ElemType, |
824 | MachineIRBuilder &MIRBuilder, |
825 | bool ExplicitLayoutRequired, |
826 | bool EmitIR) { |
827 | assert((ElemType->getOpcode() != SPIRV::OpTypeVoid) && |
828 | "Invalid array element type" ); |
829 | SPIRVType *SpvTypeInt32 = getOrCreateSPIRVIntegerType(BitWidth: 32, MIRBuilder); |
830 | SPIRVType *ArrayType = nullptr; |
831 | if (NumElems != 0) { |
832 | Register NumElementsVReg = |
833 | buildConstantInt(Val: NumElems, MIRBuilder, SpvType: SpvTypeInt32, EmitIR); |
834 | ArrayType = createOpType(MIRBuilder, Op: [&](MachineIRBuilder &MIRBuilder) { |
835 | return MIRBuilder.buildInstr(Opcode: SPIRV::OpTypeArray) |
836 | .addDef(RegNo: createTypeVReg(MIRBuilder)) |
837 | .addUse(RegNo: getSPIRVTypeID(SpirvType: ElemType)) |
838 | .addUse(RegNo: NumElementsVReg); |
839 | }); |
840 | } else { |
841 | ArrayType = createOpType(MIRBuilder, Op: [&](MachineIRBuilder &MIRBuilder) { |
842 | return MIRBuilder.buildInstr(Opcode: SPIRV::OpTypeRuntimeArray) |
843 | .addDef(RegNo: createTypeVReg(MIRBuilder)) |
844 | .addUse(RegNo: getSPIRVTypeID(SpirvType: ElemType)); |
845 | }); |
846 | } |
847 | |
848 | if (ExplicitLayoutRequired && !isResourceType(Type: ElemType)) { |
849 | Type *ET = const_cast<Type *>(getTypeForSPIRVType(Ty: ElemType)); |
850 | addArrayStrideDecorations(Reg: ArrayType->defs().begin()->getReg(), ElementType: ET, |
851 | MIRBuilder); |
852 | } |
853 | |
854 | return ArrayType; |
855 | } |
856 | |
857 | SPIRVType *SPIRVGlobalRegistry::getOpTypeOpaque(const StructType *Ty, |
858 | MachineIRBuilder &MIRBuilder) { |
859 | assert(Ty->hasName()); |
860 | const StringRef Name = Ty->hasName() ? Ty->getName() : "" ; |
861 | Register ResVReg = createTypeVReg(MIRBuilder); |
862 | return createOpType(MIRBuilder, Op: [&](MachineIRBuilder &MIRBuilder) { |
863 | auto MIB = MIRBuilder.buildInstr(Opcode: SPIRV::OpTypeOpaque).addDef(RegNo: ResVReg); |
864 | addStringImm(Str: Name, MIB); |
865 | buildOpName(Target: ResVReg, Name, MIRBuilder); |
866 | return MIB; |
867 | }); |
868 | } |
869 | |
870 | SPIRVType *SPIRVGlobalRegistry::getOpTypeStruct( |
871 | const StructType *Ty, MachineIRBuilder &MIRBuilder, |
872 | SPIRV::AccessQualifier::AccessQualifier AccQual, |
873 | StructOffsetDecorator Decorator, bool EmitIR) { |
874 | const SPIRVSubtarget &ST = |
875 | cast<SPIRVSubtarget>(Val: MIRBuilder.getMF().getSubtarget()); |
876 | SmallVector<Register, 4> FieldTypes; |
877 | constexpr unsigned MaxWordCount = UINT16_MAX; |
878 | const size_t NumElements = Ty->getNumElements(); |
879 | |
880 | size_t MaxNumElements = MaxWordCount - 2; |
881 | size_t SPIRVStructNumElements = NumElements; |
882 | if (NumElements > MaxNumElements) { |
883 | // Do adjustments for continued instructions. |
884 | SPIRVStructNumElements = MaxNumElements; |
885 | MaxNumElements = MaxWordCount - 1; |
886 | } |
887 | |
888 | for (const auto &Elem : Ty->elements()) { |
889 | SPIRVType *ElemTy = findSPIRVType( |
890 | Ty: toTypedPointer(Ty: Elem), MIRBuilder, accessQual: AccQual, |
891 | /* ExplicitLayoutRequired= */ Decorator != nullptr, EmitIR); |
892 | assert(ElemTy && ElemTy->getOpcode() != SPIRV::OpTypeVoid && |
893 | "Invalid struct element type" ); |
894 | FieldTypes.push_back(Elt: getSPIRVTypeID(SpirvType: ElemTy)); |
895 | } |
896 | Register ResVReg = createTypeVReg(MIRBuilder); |
897 | if (Ty->hasName()) |
898 | buildOpName(Target: ResVReg, Name: Ty->getName(), MIRBuilder); |
899 | if (Ty->isPacked() && !ST.isShader()) |
900 | buildOpDecorate(Reg: ResVReg, MIRBuilder, Dec: SPIRV::Decoration::CPacked, DecArgs: {}); |
901 | |
902 | SPIRVType *SPVType = |
903 | createOpType(MIRBuilder, Op: [&](MachineIRBuilder &MIRBuilder) { |
904 | auto MIBStruct = |
905 | MIRBuilder.buildInstr(Opcode: SPIRV::OpTypeStruct).addDef(RegNo: ResVReg); |
906 | for (size_t I = 0; I < SPIRVStructNumElements; ++I) |
907 | MIBStruct.addUse(RegNo: FieldTypes[I]); |
908 | for (size_t I = SPIRVStructNumElements; I < NumElements; |
909 | I += MaxNumElements) { |
910 | auto MIBCont = |
911 | MIRBuilder.buildInstr(Opcode: SPIRV::OpTypeStructContinuedINTEL); |
912 | for (size_t J = I; J < std::min(a: I + MaxNumElements, b: NumElements); ++J) |
913 | MIBCont.addUse(RegNo: FieldTypes[I]); |
914 | } |
915 | return MIBStruct; |
916 | }); |
917 | |
918 | if (Decorator) |
919 | Decorator(SPVType->defs().begin()->getReg()); |
920 | |
921 | return SPVType; |
922 | } |
923 | |
924 | SPIRVType *SPIRVGlobalRegistry::getOrCreateSpecialType( |
925 | const Type *Ty, MachineIRBuilder &MIRBuilder, |
926 | SPIRV::AccessQualifier::AccessQualifier AccQual) { |
927 | assert(isSpecialOpaqueType(Ty) && "Not a special opaque builtin type" ); |
928 | return SPIRV::lowerBuiltinType(Type: Ty, AccessQual: AccQual, MIRBuilder, GR: this); |
929 | } |
930 | |
931 | SPIRVType *SPIRVGlobalRegistry::getOpTypePointer( |
932 | SPIRV::StorageClass::StorageClass SC, SPIRVType *ElemType, |
933 | MachineIRBuilder &MIRBuilder, Register Reg) { |
934 | if (!Reg.isValid()) |
935 | Reg = createTypeVReg(MIRBuilder); |
936 | |
937 | return createOpType(MIRBuilder, Op: [&](MachineIRBuilder &MIRBuilder) { |
938 | return MIRBuilder.buildInstr(Opcode: SPIRV::OpTypePointer) |
939 | .addDef(RegNo: Reg) |
940 | .addImm(Val: static_cast<uint32_t>(SC)) |
941 | .addUse(RegNo: getSPIRVTypeID(SpirvType: ElemType)); |
942 | }); |
943 | } |
944 | |
945 | SPIRVType *SPIRVGlobalRegistry::getOpTypeForwardPointer( |
946 | SPIRV::StorageClass::StorageClass SC, MachineIRBuilder &MIRBuilder) { |
947 | return createOpType(MIRBuilder, Op: [&](MachineIRBuilder &MIRBuilder) { |
948 | return MIRBuilder.buildInstr(Opcode: SPIRV::OpTypeForwardPointer) |
949 | .addUse(RegNo: createTypeVReg(MIRBuilder)) |
950 | .addImm(Val: static_cast<uint32_t>(SC)); |
951 | }); |
952 | } |
953 | |
954 | SPIRVType *SPIRVGlobalRegistry::getOpTypeFunction( |
955 | SPIRVType *RetType, const SmallVectorImpl<SPIRVType *> &ArgTypes, |
956 | MachineIRBuilder &MIRBuilder) { |
957 | return createOpType(MIRBuilder, Op: [&](MachineIRBuilder &MIRBuilder) { |
958 | auto MIB = MIRBuilder.buildInstr(Opcode: SPIRV::OpTypeFunction) |
959 | .addDef(RegNo: createTypeVReg(MIRBuilder)) |
960 | .addUse(RegNo: getSPIRVTypeID(SpirvType: RetType)); |
961 | for (const SPIRVType *ArgType : ArgTypes) |
962 | MIB.addUse(RegNo: getSPIRVTypeID(SpirvType: ArgType)); |
963 | return MIB; |
964 | }); |
965 | } |
966 | |
967 | SPIRVType *SPIRVGlobalRegistry::getOrCreateOpTypeFunctionWithArgs( |
968 | const Type *Ty, SPIRVType *RetType, |
969 | const SmallVectorImpl<SPIRVType *> &ArgTypes, |
970 | MachineIRBuilder &MIRBuilder) { |
971 | if (const MachineInstr *MI = findMI(T: Ty, RequiresExplicitLayout: false, MF: &MIRBuilder.getMF())) |
972 | return MI; |
973 | const MachineInstr *NewMI = getOpTypeFunction(RetType, ArgTypes, MIRBuilder); |
974 | add(T: Ty, RequiresExplicitLayout: false, MI: NewMI); |
975 | return finishCreatingSPIRVType(LLVMTy: Ty, SpirvType: NewMI); |
976 | } |
977 | |
978 | SPIRVType *SPIRVGlobalRegistry::findSPIRVType( |
979 | const Type *Ty, MachineIRBuilder &MIRBuilder, |
980 | SPIRV::AccessQualifier::AccessQualifier AccQual, |
981 | bool ExplicitLayoutRequired, bool EmitIR) { |
982 | Ty = adjustIntTypeByWidth(Ty); |
983 | // TODO: findMI needs to know if a layout is required. |
984 | if (const MachineInstr *MI = |
985 | findMI(T: Ty, RequiresExplicitLayout: ExplicitLayoutRequired, MF: &MIRBuilder.getMF())) |
986 | return MI; |
987 | if (auto It = ForwardPointerTypes.find(Val: Ty); It != ForwardPointerTypes.end()) |
988 | return It->second; |
989 | return restOfCreateSPIRVType(Type: Ty, MIRBuilder, AccessQual: AccQual, ExplicitLayoutRequired, |
990 | EmitIR); |
991 | } |
992 | |
993 | Register SPIRVGlobalRegistry::getSPIRVTypeID(const SPIRVType *SpirvType) const { |
994 | assert(SpirvType && "Attempting to get type id for nullptr type." ); |
995 | if (SpirvType->getOpcode() == SPIRV::OpTypeForwardPointer || |
996 | SpirvType->getOpcode() == SPIRV::OpTypeStructContinuedINTEL) |
997 | return SpirvType->uses().begin()->getReg(); |
998 | return SpirvType->defs().begin()->getReg(); |
999 | } |
1000 | |
1001 | // We need to use a new LLVM integer type if there is a mismatch between |
1002 | // number of bits in LLVM and SPIRV integer types to let DuplicateTracker |
1003 | // ensure uniqueness of a SPIRV type by the corresponding LLVM type. Without |
1004 | // such an adjustment SPIRVGlobalRegistry::getOpTypeInt() could create the |
1005 | // same "OpTypeInt 8" type for a series of LLVM integer types with number of |
1006 | // bits less than 8. This would lead to duplicate type definitions |
1007 | // eventually due to the method that DuplicateTracker utilizes to reason |
1008 | // about uniqueness of type records. |
1009 | const Type *SPIRVGlobalRegistry::adjustIntTypeByWidth(const Type *Ty) const { |
1010 | if (auto IType = dyn_cast<IntegerType>(Val: Ty)) { |
1011 | unsigned SrcBitWidth = IType->getBitWidth(); |
1012 | if (SrcBitWidth > 1) { |
1013 | unsigned BitWidth = adjustOpTypeIntWidth(Width: SrcBitWidth); |
1014 | // Maybe change source LLVM type to keep DuplicateTracker consistent. |
1015 | if (SrcBitWidth != BitWidth) |
1016 | Ty = IntegerType::get(C&: Ty->getContext(), NumBits: BitWidth); |
1017 | } |
1018 | } |
1019 | return Ty; |
1020 | } |
1021 | |
1022 | SPIRVType *SPIRVGlobalRegistry::createSPIRVType( |
1023 | const Type *Ty, MachineIRBuilder &MIRBuilder, |
1024 | SPIRV::AccessQualifier::AccessQualifier AccQual, |
1025 | bool ExplicitLayoutRequired, bool EmitIR) { |
1026 | if (isSpecialOpaqueType(Ty)) |
1027 | return getOrCreateSpecialType(Ty, MIRBuilder, AccQual); |
1028 | |
1029 | if (const MachineInstr *MI = |
1030 | findMI(T: Ty, RequiresExplicitLayout: ExplicitLayoutRequired, MF: &MIRBuilder.getMF())) |
1031 | return MI; |
1032 | |
1033 | if (auto IType = dyn_cast<IntegerType>(Val: Ty)) { |
1034 | const unsigned Width = IType->getBitWidth(); |
1035 | return Width == 1 ? getOpTypeBool(MIRBuilder) |
1036 | : getOpTypeInt(Width, MIRBuilder, IsSigned: false); |
1037 | } |
1038 | if (Ty->isFloatingPointTy()) |
1039 | return getOpTypeFloat(Width: Ty->getPrimitiveSizeInBits(), MIRBuilder); |
1040 | if (Ty->isVoidTy()) |
1041 | return getOpTypeVoid(MIRBuilder); |
1042 | if (Ty->isVectorTy()) { |
1043 | SPIRVType *El = |
1044 | findSPIRVType(Ty: cast<FixedVectorType>(Val: Ty)->getElementType(), MIRBuilder, |
1045 | AccQual, ExplicitLayoutRequired, EmitIR); |
1046 | return getOpTypeVector(NumElems: cast<FixedVectorType>(Val: Ty)->getNumElements(), ElemType: El, |
1047 | MIRBuilder); |
1048 | } |
1049 | if (Ty->isArrayTy()) { |
1050 | SPIRVType *El = findSPIRVType(Ty: Ty->getArrayElementType(), MIRBuilder, |
1051 | AccQual, ExplicitLayoutRequired, EmitIR); |
1052 | return getOpTypeArray(NumElems: Ty->getArrayNumElements(), ElemType: El, MIRBuilder, |
1053 | ExplicitLayoutRequired, EmitIR); |
1054 | } |
1055 | if (auto SType = dyn_cast<StructType>(Val: Ty)) { |
1056 | if (SType->isOpaque()) |
1057 | return getOpTypeOpaque(Ty: SType, MIRBuilder); |
1058 | |
1059 | StructOffsetDecorator Decorator = nullptr; |
1060 | if (ExplicitLayoutRequired) { |
1061 | Decorator = [&MIRBuilder, SType, this](Register Reg) { |
1062 | addStructOffsetDecorations(Reg, Ty: const_cast<StructType *>(SType), |
1063 | MIRBuilder); |
1064 | }; |
1065 | } |
1066 | return getOpTypeStruct(Ty: SType, MIRBuilder, AccQual, Decorator, EmitIR); |
1067 | } |
1068 | if (auto FType = dyn_cast<FunctionType>(Val: Ty)) { |
1069 | SPIRVType *RetTy = findSPIRVType(Ty: FType->getReturnType(), MIRBuilder, |
1070 | AccQual, ExplicitLayoutRequired, EmitIR); |
1071 | SmallVector<SPIRVType *, 4> ParamTypes; |
1072 | for (const auto &ParamTy : FType->params()) |
1073 | ParamTypes.push_back(Elt: findSPIRVType(Ty: ParamTy, MIRBuilder, AccQual, |
1074 | ExplicitLayoutRequired, EmitIR)); |
1075 | return getOpTypeFunction(RetType: RetTy, ArgTypes: ParamTypes, MIRBuilder); |
1076 | } |
1077 | |
1078 | unsigned AddrSpace = typeToAddressSpace(Ty); |
1079 | SPIRVType *SpvElementType = nullptr; |
1080 | if (Type *ElemTy = ::getPointeeType(Ty)) |
1081 | SpvElementType = getOrCreateSPIRVType(Type: ElemTy, MIRBuilder, AQ: AccQual, EmitIR); |
1082 | else |
1083 | SpvElementType = getOrCreateSPIRVIntegerType(BitWidth: 8, MIRBuilder); |
1084 | |
1085 | // Get access to information about available extensions |
1086 | const SPIRVSubtarget *ST = |
1087 | static_cast<const SPIRVSubtarget *>(&MIRBuilder.getMF().getSubtarget()); |
1088 | auto SC = addressSpaceToStorageClass(AddrSpace, STI: *ST); |
1089 | |
1090 | Type *ElemTy = ::getPointeeType(Ty); |
1091 | if (!ElemTy) { |
1092 | ElemTy = Type::getInt8Ty(C&: MIRBuilder.getContext()); |
1093 | } |
1094 | |
1095 | // If we have forward pointer associated with this type, use its register |
1096 | // operand to create OpTypePointer. |
1097 | if (auto It = ForwardPointerTypes.find(Val: Ty); It != ForwardPointerTypes.end()) { |
1098 | Register Reg = getSPIRVTypeID(SpirvType: It->second); |
1099 | // TODO: what does getOpTypePointer do? |
1100 | return getOpTypePointer(SC, ElemType: SpvElementType, MIRBuilder, Reg); |
1101 | } |
1102 | |
1103 | return getOrCreateSPIRVPointerType(BaseType: ElemTy, MIRBuilder, SC); |
1104 | } |
1105 | |
1106 | SPIRVType *SPIRVGlobalRegistry::restOfCreateSPIRVType( |
1107 | const Type *Ty, MachineIRBuilder &MIRBuilder, |
1108 | SPIRV::AccessQualifier::AccessQualifier AccessQual, |
1109 | bool ExplicitLayoutRequired, bool EmitIR) { |
1110 | // TODO: Could this create a problem if one requires an explicit layout, and |
1111 | // the next time it does not? |
1112 | if (TypesInProcessing.count(Ptr: Ty) && !isPointerTyOrWrapper(Ty)) |
1113 | return nullptr; |
1114 | TypesInProcessing.insert(Ptr: Ty); |
1115 | SPIRVType *SpirvType = createSPIRVType(Ty, MIRBuilder, AccQual: AccessQual, |
1116 | ExplicitLayoutRequired, EmitIR); |
1117 | TypesInProcessing.erase(Ptr: Ty); |
1118 | VRegToTypeMap[&MIRBuilder.getMF()][getSPIRVTypeID(SpirvType)] = SpirvType; |
1119 | |
1120 | // TODO: We could end up with two SPIR-V types pointing to the same llvm type. |
1121 | // Is that a problem? |
1122 | SPIRVToLLVMType[SpirvType] = unifyPtrType(Ty); |
1123 | |
1124 | if (SpirvType->getOpcode() == SPIRV::OpTypeForwardPointer || |
1125 | findMI(T: Ty, RequiresExplicitLayout: false, MF: &MIRBuilder.getMF()) || isSpecialOpaqueType(Ty)) |
1126 | return SpirvType; |
1127 | |
1128 | if (auto *ExtTy = dyn_cast<TargetExtType>(Val: Ty); |
1129 | ExtTy && isTypedPointerWrapper(ExtTy)) |
1130 | add(PointeeTy: ExtTy->getTypeParameter(i: 0), AddressSpace: ExtTy->getIntParameter(i: 0), MI: SpirvType); |
1131 | else if (!isPointerTy(T: Ty)) |
1132 | add(T: Ty, RequiresExplicitLayout: ExplicitLayoutRequired, MI: SpirvType); |
1133 | else if (isTypedPointerTy(T: Ty)) |
1134 | add(PointeeTy: cast<TypedPointerType>(Val: Ty)->getElementType(), |
1135 | AddressSpace: getPointerAddressSpace(T: Ty), MI: SpirvType); |
1136 | else |
1137 | add(PointeeTy: Type::getInt8Ty(C&: MIRBuilder.getMF().getFunction().getContext()), |
1138 | AddressSpace: getPointerAddressSpace(T: Ty), MI: SpirvType); |
1139 | return SpirvType; |
1140 | } |
1141 | |
1142 | SPIRVType * |
1143 | SPIRVGlobalRegistry::getSPIRVTypeForVReg(Register VReg, |
1144 | const MachineFunction *MF) const { |
1145 | auto t = VRegToTypeMap.find(Val: MF ? MF : CurMF); |
1146 | if (t != VRegToTypeMap.end()) { |
1147 | auto tt = t->second.find(Val: VReg); |
1148 | if (tt != t->second.end()) |
1149 | return tt->second; |
1150 | } |
1151 | return nullptr; |
1152 | } |
1153 | |
1154 | SPIRVType *SPIRVGlobalRegistry::getResultType(Register VReg, |
1155 | MachineFunction *MF) { |
1156 | if (!MF) |
1157 | MF = CurMF; |
1158 | MachineInstr *Instr = getVRegDef(MRI&: MF->getRegInfo(), Reg: VReg); |
1159 | return getSPIRVTypeForVReg(VReg: Instr->getOperand(i: 1).getReg(), MF); |
1160 | } |
1161 | |
1162 | SPIRVType *SPIRVGlobalRegistry::getOrCreateSPIRVType( |
1163 | const Type *Ty, MachineIRBuilder &MIRBuilder, |
1164 | SPIRV::AccessQualifier::AccessQualifier AccessQual, |
1165 | bool ExplicitLayoutRequired, bool EmitIR) { |
1166 | const MachineFunction *MF = &MIRBuilder.getMF(); |
1167 | Register Reg; |
1168 | if (auto *ExtTy = dyn_cast<TargetExtType>(Val: Ty); |
1169 | ExtTy && isTypedPointerWrapper(ExtTy)) |
1170 | Reg = find(PointeeTy: ExtTy->getTypeParameter(i: 0), AddressSpace: ExtTy->getIntParameter(i: 0), MF); |
1171 | else if (!isPointerTy(T: Ty)) |
1172 | Reg = find(T: Ty = adjustIntTypeByWidth(Ty), RequiresExplicitLayout: ExplicitLayoutRequired, MF); |
1173 | else if (isTypedPointerTy(T: Ty)) |
1174 | Reg = find(PointeeTy: cast<TypedPointerType>(Val: Ty)->getElementType(), |
1175 | AddressSpace: getPointerAddressSpace(T: Ty), MF); |
1176 | else |
1177 | Reg = find(PointeeTy: Type::getInt8Ty(C&: MIRBuilder.getMF().getFunction().getContext()), |
1178 | AddressSpace: getPointerAddressSpace(T: Ty), MF); |
1179 | if (Reg.isValid() && !isSpecialOpaqueType(Ty)) |
1180 | return getSPIRVTypeForVReg(VReg: Reg); |
1181 | |
1182 | TypesInProcessing.clear(); |
1183 | SPIRVType *STy = restOfCreateSPIRVType(Ty, MIRBuilder, AccessQual, |
1184 | ExplicitLayoutRequired, EmitIR); |
1185 | // Create normal pointer types for the corresponding OpTypeForwardPointers. |
1186 | for (auto &CU : ForwardPointerTypes) { |
1187 | // Pointer type themselves do not require an explicit layout. The types |
1188 | // they pointer to might, but that is taken care of when creating the type. |
1189 | bool PtrNeedsLayout = false; |
1190 | const Type *Ty2 = CU.first; |
1191 | SPIRVType *STy2 = CU.second; |
1192 | if ((Reg = find(T: Ty2, RequiresExplicitLayout: PtrNeedsLayout, MF)).isValid()) |
1193 | STy2 = getSPIRVTypeForVReg(VReg: Reg); |
1194 | else |
1195 | STy2 = restOfCreateSPIRVType(Ty: Ty2, MIRBuilder, AccessQual, ExplicitLayoutRequired: PtrNeedsLayout, |
1196 | EmitIR); |
1197 | if (Ty == Ty2) |
1198 | STy = STy2; |
1199 | } |
1200 | ForwardPointerTypes.clear(); |
1201 | return STy; |
1202 | } |
1203 | |
1204 | bool SPIRVGlobalRegistry::isScalarOfType(Register VReg, |
1205 | unsigned TypeOpcode) const { |
1206 | SPIRVType *Type = getSPIRVTypeForVReg(VReg); |
1207 | assert(Type && "isScalarOfType VReg has no type assigned" ); |
1208 | return Type->getOpcode() == TypeOpcode; |
1209 | } |
1210 | |
1211 | bool SPIRVGlobalRegistry::isScalarOrVectorOfType(Register VReg, |
1212 | unsigned TypeOpcode) const { |
1213 | SPIRVType *Type = getSPIRVTypeForVReg(VReg); |
1214 | assert(Type && "isScalarOrVectorOfType VReg has no type assigned" ); |
1215 | if (Type->getOpcode() == TypeOpcode) |
1216 | return true; |
1217 | if (Type->getOpcode() == SPIRV::OpTypeVector) { |
1218 | Register ScalarTypeVReg = Type->getOperand(i: 1).getReg(); |
1219 | SPIRVType *ScalarType = getSPIRVTypeForVReg(VReg: ScalarTypeVReg); |
1220 | return ScalarType->getOpcode() == TypeOpcode; |
1221 | } |
1222 | return false; |
1223 | } |
1224 | |
1225 | bool SPIRVGlobalRegistry::isResourceType(SPIRVType *Type) const { |
1226 | switch (Type->getOpcode()) { |
1227 | case SPIRV::OpTypeImage: |
1228 | case SPIRV::OpTypeSampler: |
1229 | case SPIRV::OpTypeSampledImage: |
1230 | return true; |
1231 | case SPIRV::OpTypeStruct: |
1232 | return hasBlockDecoration(Type); |
1233 | default: |
1234 | return false; |
1235 | } |
1236 | return false; |
1237 | } |
1238 | unsigned |
1239 | SPIRVGlobalRegistry::getScalarOrVectorComponentCount(Register VReg) const { |
1240 | return getScalarOrVectorComponentCount(Type: getSPIRVTypeForVReg(VReg)); |
1241 | } |
1242 | |
1243 | unsigned |
1244 | SPIRVGlobalRegistry::getScalarOrVectorComponentCount(SPIRVType *Type) const { |
1245 | if (!Type) |
1246 | return 0; |
1247 | return Type->getOpcode() == SPIRV::OpTypeVector |
1248 | ? static_cast<unsigned>(Type->getOperand(i: 2).getImm()) |
1249 | : 1; |
1250 | } |
1251 | |
1252 | SPIRVType * |
1253 | SPIRVGlobalRegistry::getScalarOrVectorComponentType(Register VReg) const { |
1254 | return getScalarOrVectorComponentType(Type: getSPIRVTypeForVReg(VReg)); |
1255 | } |
1256 | |
1257 | SPIRVType * |
1258 | SPIRVGlobalRegistry::getScalarOrVectorComponentType(SPIRVType *Type) const { |
1259 | if (!Type) |
1260 | return nullptr; |
1261 | Register ScalarReg = Type->getOpcode() == SPIRV::OpTypeVector |
1262 | ? Type->getOperand(i: 1).getReg() |
1263 | : Type->getOperand(i: 0).getReg(); |
1264 | SPIRVType *ScalarType = getSPIRVTypeForVReg(VReg: ScalarReg); |
1265 | assert(isScalarOrVectorOfType(Type->getOperand(0).getReg(), |
1266 | ScalarType->getOpcode())); |
1267 | return ScalarType; |
1268 | } |
1269 | |
1270 | unsigned |
1271 | SPIRVGlobalRegistry::getScalarOrVectorBitWidth(const SPIRVType *Type) const { |
1272 | assert(Type && "Invalid Type pointer" ); |
1273 | if (Type->getOpcode() == SPIRV::OpTypeVector) { |
1274 | auto EleTypeReg = Type->getOperand(i: 1).getReg(); |
1275 | Type = getSPIRVTypeForVReg(VReg: EleTypeReg); |
1276 | } |
1277 | if (Type->getOpcode() == SPIRV::OpTypeInt || |
1278 | Type->getOpcode() == SPIRV::OpTypeFloat) |
1279 | return Type->getOperand(i: 1).getImm(); |
1280 | if (Type->getOpcode() == SPIRV::OpTypeBool) |
1281 | return 1; |
1282 | llvm_unreachable("Attempting to get bit width of non-integer/float type." ); |
1283 | } |
1284 | |
1285 | unsigned SPIRVGlobalRegistry::getNumScalarOrVectorTotalBitWidth( |
1286 | const SPIRVType *Type) const { |
1287 | assert(Type && "Invalid Type pointer" ); |
1288 | unsigned NumElements = 1; |
1289 | if (Type->getOpcode() == SPIRV::OpTypeVector) { |
1290 | NumElements = static_cast<unsigned>(Type->getOperand(i: 2).getImm()); |
1291 | Type = getSPIRVTypeForVReg(VReg: Type->getOperand(i: 1).getReg()); |
1292 | } |
1293 | return Type->getOpcode() == SPIRV::OpTypeInt || |
1294 | Type->getOpcode() == SPIRV::OpTypeFloat |
1295 | ? NumElements * Type->getOperand(i: 1).getImm() |
1296 | : 0; |
1297 | } |
1298 | |
1299 | const SPIRVType *SPIRVGlobalRegistry::retrieveScalarOrVectorIntType( |
1300 | const SPIRVType *Type) const { |
1301 | if (Type && Type->getOpcode() == SPIRV::OpTypeVector) |
1302 | Type = getSPIRVTypeForVReg(VReg: Type->getOperand(i: 1).getReg()); |
1303 | return Type && Type->getOpcode() == SPIRV::OpTypeInt ? Type : nullptr; |
1304 | } |
1305 | |
1306 | bool SPIRVGlobalRegistry::isScalarOrVectorSigned(const SPIRVType *Type) const { |
1307 | const SPIRVType *IntType = retrieveScalarOrVectorIntType(Type); |
1308 | return IntType && IntType->getOperand(i: 2).getImm() != 0; |
1309 | } |
1310 | |
1311 | SPIRVType *SPIRVGlobalRegistry::getPointeeType(SPIRVType *PtrType) { |
1312 | return PtrType && PtrType->getOpcode() == SPIRV::OpTypePointer |
1313 | ? getSPIRVTypeForVReg(VReg: PtrType->getOperand(i: 2).getReg()) |
1314 | : nullptr; |
1315 | } |
1316 | |
1317 | unsigned SPIRVGlobalRegistry::getPointeeTypeOp(Register PtrReg) { |
1318 | SPIRVType *ElemType = getPointeeType(PtrType: getSPIRVTypeForVReg(VReg: PtrReg)); |
1319 | return ElemType ? ElemType->getOpcode() : 0; |
1320 | } |
1321 | |
1322 | bool SPIRVGlobalRegistry::isBitcastCompatible(const SPIRVType *Type1, |
1323 | const SPIRVType *Type2) const { |
1324 | if (!Type1 || !Type2) |
1325 | return false; |
1326 | auto Op1 = Type1->getOpcode(), Op2 = Type2->getOpcode(); |
1327 | // Ignore difference between <1.5 and >=1.5 protocol versions: |
1328 | // it's valid if either Result Type or Operand is a pointer, and the other |
1329 | // is a pointer, an integer scalar, or an integer vector. |
1330 | if (Op1 == SPIRV::OpTypePointer && |
1331 | (Op2 == SPIRV::OpTypePointer || retrieveScalarOrVectorIntType(Type: Type2))) |
1332 | return true; |
1333 | if (Op2 == SPIRV::OpTypePointer && |
1334 | (Op1 == SPIRV::OpTypePointer || retrieveScalarOrVectorIntType(Type: Type1))) |
1335 | return true; |
1336 | unsigned Bits1 = getNumScalarOrVectorTotalBitWidth(Type: Type1), |
1337 | Bits2 = getNumScalarOrVectorTotalBitWidth(Type: Type2); |
1338 | return Bits1 > 0 && Bits1 == Bits2; |
1339 | } |
1340 | |
1341 | SPIRV::StorageClass::StorageClass |
1342 | SPIRVGlobalRegistry::getPointerStorageClass(Register VReg) const { |
1343 | SPIRVType *Type = getSPIRVTypeForVReg(VReg); |
1344 | assert(Type && Type->getOpcode() == SPIRV::OpTypePointer && |
1345 | Type->getOperand(1).isImm() && "Pointer type is expected" ); |
1346 | return getPointerStorageClass(Type); |
1347 | } |
1348 | |
1349 | SPIRV::StorageClass::StorageClass |
1350 | SPIRVGlobalRegistry::getPointerStorageClass(const SPIRVType *Type) const { |
1351 | return static_cast<SPIRV::StorageClass::StorageClass>( |
1352 | Type->getOperand(i: 1).getImm()); |
1353 | } |
1354 | |
1355 | SPIRVType *SPIRVGlobalRegistry::getOrCreateVulkanBufferType( |
1356 | MachineIRBuilder &MIRBuilder, Type *ElemType, |
1357 | SPIRV::StorageClass::StorageClass SC, bool IsWritable, bool EmitIr) { |
1358 | auto Key = SPIRV::irhandle_vkbuffer(ElementType: ElemType, SC, IsWriteable: IsWritable); |
1359 | if (const MachineInstr *MI = findMI(Handle: Key, MF: &MIRBuilder.getMF())) |
1360 | return MI; |
1361 | |
1362 | bool ExplicitLayoutRequired = storageClassRequiresExplictLayout(SC); |
1363 | // We need to get the SPIR-V type for the element here, so we can add the |
1364 | // decoration to it. |
1365 | auto *T = StructType::create(Elements: ElemType); |
1366 | auto *BlockType = |
1367 | getOrCreateSPIRVType(Ty: T, MIRBuilder, AccessQual: SPIRV::AccessQualifier::None, |
1368 | ExplicitLayoutRequired, EmitIR: EmitIr); |
1369 | |
1370 | buildOpDecorate(Reg: BlockType->defs().begin()->getReg(), MIRBuilder, |
1371 | Dec: SPIRV::Decoration::Block, DecArgs: {}); |
1372 | |
1373 | if (!IsWritable) { |
1374 | buildOpMemberDecorate(Reg: BlockType->defs().begin()->getReg(), MIRBuilder, |
1375 | Dec: SPIRV::Decoration::NonWritable, Member: 0, DecArgs: {}); |
1376 | } |
1377 | |
1378 | SPIRVType *R = getOrCreateSPIRVPointerTypeInternal(BaseType: BlockType, MIRBuilder, SC); |
1379 | add(Handle: Key, MI: R); |
1380 | return R; |
1381 | } |
1382 | |
1383 | SPIRVType *SPIRVGlobalRegistry::getOrCreateLayoutType( |
1384 | MachineIRBuilder &MIRBuilder, const TargetExtType *T, bool EmitIr) { |
1385 | auto Key = SPIRV::handle(Ty: T); |
1386 | if (const MachineInstr *MI = findMI(Handle: Key, MF: &MIRBuilder.getMF())) |
1387 | return MI; |
1388 | |
1389 | StructType *ST = cast<StructType>(Val: T->getTypeParameter(i: 0)); |
1390 | ArrayRef<uint32_t> Offsets = T->int_params().slice(N: 1); |
1391 | assert(ST->getNumElements() == Offsets.size()); |
1392 | |
1393 | StructOffsetDecorator Decorator = [&MIRBuilder, &Offsets](Register Reg) { |
1394 | for (uint32_t I = 0; I < Offsets.size(); ++I) { |
1395 | buildOpMemberDecorate(Reg, MIRBuilder, Dec: SPIRV::Decoration::Offset, Member: I, |
1396 | DecArgs: {Offsets[I]}); |
1397 | } |
1398 | }; |
1399 | |
1400 | // We need a new OpTypeStruct instruction because decorations will be |
1401 | // different from a struct with an explicit layout created from a different |
1402 | // entry point. |
1403 | SPIRVType *SPIRVStructType = getOpTypeStruct( |
1404 | Ty: ST, MIRBuilder, AccQual: SPIRV::AccessQualifier::None, Decorator, EmitIR: EmitIr); |
1405 | add(Handle: Key, MI: SPIRVStructType); |
1406 | return SPIRVStructType; |
1407 | } |
1408 | |
1409 | SPIRVType *SPIRVGlobalRegistry::getImageType( |
1410 | const TargetExtType *ExtensionType, |
1411 | const SPIRV::AccessQualifier::AccessQualifier Qualifier, |
1412 | MachineIRBuilder &MIRBuilder) { |
1413 | assert(ExtensionType->getNumTypeParameters() == 1 && |
1414 | "SPIR-V image builtin type must have sampled type parameter!" ); |
1415 | const SPIRVType *SampledType = |
1416 | getOrCreateSPIRVType(Type: ExtensionType->getTypeParameter(i: 0), MIRBuilder, |
1417 | AQ: SPIRV::AccessQualifier::ReadWrite, EmitIR: true); |
1418 | assert((ExtensionType->getNumIntParameters() == 7 || |
1419 | ExtensionType->getNumIntParameters() == 6) && |
1420 | "Invalid number of parameters for SPIR-V image builtin!" ); |
1421 | |
1422 | SPIRV::AccessQualifier::AccessQualifier accessQualifier = |
1423 | SPIRV::AccessQualifier::None; |
1424 | if (ExtensionType->getNumIntParameters() == 7) { |
1425 | accessQualifier = Qualifier == SPIRV::AccessQualifier::WriteOnly |
1426 | ? SPIRV::AccessQualifier::WriteOnly |
1427 | : SPIRV::AccessQualifier::AccessQualifier( |
1428 | ExtensionType->getIntParameter(i: 6)); |
1429 | } |
1430 | |
1431 | // Create or get an existing type from GlobalRegistry. |
1432 | SPIRVType *R = getOrCreateOpTypeImage( |
1433 | MIRBuilder, SampledType, |
1434 | Dim: SPIRV::Dim::Dim(ExtensionType->getIntParameter(i: 0)), |
1435 | Depth: ExtensionType->getIntParameter(i: 1), Arrayed: ExtensionType->getIntParameter(i: 2), |
1436 | Multisampled: ExtensionType->getIntParameter(i: 3), Sampled: ExtensionType->getIntParameter(i: 4), |
1437 | ImageFormat: SPIRV::ImageFormat::ImageFormat(ExtensionType->getIntParameter(i: 5)), |
1438 | AccQual: accessQualifier); |
1439 | SPIRVToLLVMType[R] = ExtensionType; |
1440 | return R; |
1441 | } |
1442 | |
1443 | SPIRVType *SPIRVGlobalRegistry::getOrCreateOpTypeImage( |
1444 | MachineIRBuilder &MIRBuilder, SPIRVType *SampledType, SPIRV::Dim::Dim Dim, |
1445 | uint32_t Depth, uint32_t Arrayed, uint32_t Multisampled, uint32_t Sampled, |
1446 | SPIRV::ImageFormat::ImageFormat ImageFormat, |
1447 | SPIRV::AccessQualifier::AccessQualifier AccessQual) { |
1448 | auto Key = SPIRV::irhandle_image(SampledTy: SPIRVToLLVMType.lookup(Val: SampledType), Dim, |
1449 | Depth, Arrayed, MS: Multisampled, Sampled, |
1450 | ImageFormat, AQ: AccessQual); |
1451 | if (const MachineInstr *MI = findMI(Handle: Key, MF: &MIRBuilder.getMF())) |
1452 | return MI; |
1453 | const MachineInstr *NewMI = |
1454 | createOpType(MIRBuilder, Op: [&](MachineIRBuilder &MIRBuilder) { |
1455 | auto MIB = |
1456 | MIRBuilder.buildInstr(Opcode: SPIRV::OpTypeImage) |
1457 | .addDef(RegNo: createTypeVReg(MIRBuilder)) |
1458 | .addUse(RegNo: getSPIRVTypeID(SpirvType: SampledType)) |
1459 | .addImm(Val: Dim) |
1460 | .addImm(Val: Depth) // Depth (whether or not it is a Depth image). |
1461 | .addImm(Val: Arrayed) // Arrayed. |
1462 | .addImm(Val: Multisampled) // Multisampled (0 = only single-sample). |
1463 | .addImm(Val: Sampled) // Sampled (0 = usage known at runtime). |
1464 | .addImm(Val: ImageFormat); |
1465 | if (AccessQual != SPIRV::AccessQualifier::None) |
1466 | MIB.addImm(Val: AccessQual); |
1467 | return MIB; |
1468 | }); |
1469 | add(Handle: Key, MI: NewMI); |
1470 | return NewMI; |
1471 | } |
1472 | |
1473 | SPIRVType * |
1474 | SPIRVGlobalRegistry::getOrCreateOpTypeSampler(MachineIRBuilder &MIRBuilder) { |
1475 | auto Key = SPIRV::irhandle_sampler(); |
1476 | const MachineFunction *MF = &MIRBuilder.getMF(); |
1477 | if (const MachineInstr *MI = findMI(Handle: Key, MF)) |
1478 | return MI; |
1479 | const MachineInstr *NewMI = |
1480 | createOpType(MIRBuilder, Op: [&](MachineIRBuilder &MIRBuilder) { |
1481 | return MIRBuilder.buildInstr(Opcode: SPIRV::OpTypeSampler) |
1482 | .addDef(RegNo: createTypeVReg(MIRBuilder)); |
1483 | }); |
1484 | add(Handle: Key, MI: NewMI); |
1485 | return NewMI; |
1486 | } |
1487 | |
1488 | SPIRVType *SPIRVGlobalRegistry::getOrCreateOpTypePipe( |
1489 | MachineIRBuilder &MIRBuilder, |
1490 | SPIRV::AccessQualifier::AccessQualifier AccessQual) { |
1491 | auto Key = SPIRV::irhandle_pipe(AQ: AccessQual); |
1492 | if (const MachineInstr *MI = findMI(Handle: Key, MF: &MIRBuilder.getMF())) |
1493 | return MI; |
1494 | const MachineInstr *NewMI = |
1495 | createOpType(MIRBuilder, Op: [&](MachineIRBuilder &MIRBuilder) { |
1496 | return MIRBuilder.buildInstr(Opcode: SPIRV::OpTypePipe) |
1497 | .addDef(RegNo: createTypeVReg(MIRBuilder)) |
1498 | .addImm(Val: AccessQual); |
1499 | }); |
1500 | add(Handle: Key, MI: NewMI); |
1501 | return NewMI; |
1502 | } |
1503 | |
1504 | SPIRVType *SPIRVGlobalRegistry::getOrCreateOpTypeDeviceEvent( |
1505 | MachineIRBuilder &MIRBuilder) { |
1506 | auto Key = SPIRV::irhandle_event(); |
1507 | if (const MachineInstr *MI = findMI(Handle: Key, MF: &MIRBuilder.getMF())) |
1508 | return MI; |
1509 | const MachineInstr *NewMI = |
1510 | createOpType(MIRBuilder, Op: [&](MachineIRBuilder &MIRBuilder) { |
1511 | return MIRBuilder.buildInstr(Opcode: SPIRV::OpTypeDeviceEvent) |
1512 | .addDef(RegNo: createTypeVReg(MIRBuilder)); |
1513 | }); |
1514 | add(Handle: Key, MI: NewMI); |
1515 | return NewMI; |
1516 | } |
1517 | |
1518 | SPIRVType *SPIRVGlobalRegistry::getOrCreateOpTypeSampledImage( |
1519 | SPIRVType *ImageType, MachineIRBuilder &MIRBuilder) { |
1520 | auto Key = SPIRV::irhandle_sampled_image( |
1521 | SampledTy: SPIRVToLLVMType.lookup(Val: MIRBuilder.getMF().getRegInfo().getVRegDef( |
1522 | Reg: ImageType->getOperand(i: 1).getReg())), |
1523 | ImageTy: ImageType); |
1524 | if (const MachineInstr *MI = findMI(Handle: Key, MF: &MIRBuilder.getMF())) |
1525 | return MI; |
1526 | const MachineInstr *NewMI = |
1527 | createOpType(MIRBuilder, Op: [&](MachineIRBuilder &MIRBuilder) { |
1528 | return MIRBuilder.buildInstr(Opcode: SPIRV::OpTypeSampledImage) |
1529 | .addDef(RegNo: createTypeVReg(MIRBuilder)) |
1530 | .addUse(RegNo: getSPIRVTypeID(SpirvType: ImageType)); |
1531 | }); |
1532 | add(Handle: Key, MI: NewMI); |
1533 | return NewMI; |
1534 | } |
1535 | |
1536 | SPIRVType *SPIRVGlobalRegistry::getOrCreateOpTypeCoopMatr( |
1537 | MachineIRBuilder &MIRBuilder, const TargetExtType *ExtensionType, |
1538 | const SPIRVType *ElemType, uint32_t Scope, uint32_t Rows, uint32_t Columns, |
1539 | uint32_t Use, bool EmitIR) { |
1540 | if (const MachineInstr *MI = |
1541 | findMI(T: ExtensionType, RequiresExplicitLayout: false, MF: &MIRBuilder.getMF())) |
1542 | return MI; |
1543 | const MachineInstr *NewMI = |
1544 | createOpType(MIRBuilder, Op: [&](MachineIRBuilder &MIRBuilder) { |
1545 | SPIRVType *SpvTypeInt32 = getOrCreateSPIRVIntegerType(BitWidth: 32, MIRBuilder); |
1546 | const Type *ET = getTypeForSPIRVType(Ty: ElemType); |
1547 | if (ET->isIntegerTy() && ET->getIntegerBitWidth() == 4 && |
1548 | cast<SPIRVSubtarget>(Val: MIRBuilder.getMF().getSubtarget()) |
1549 | .canUseExtension(E: SPIRV::Extension::SPV_INTEL_int4)) { |
1550 | MIRBuilder.buildInstr(Opcode: SPIRV::OpCapability) |
1551 | .addImm(Val: SPIRV::Capability::Int4CooperativeMatrixINTEL); |
1552 | } |
1553 | return MIRBuilder.buildInstr(Opcode: SPIRV::OpTypeCooperativeMatrixKHR) |
1554 | .addDef(RegNo: createTypeVReg(MIRBuilder)) |
1555 | .addUse(RegNo: getSPIRVTypeID(SpirvType: ElemType)) |
1556 | .addUse(RegNo: buildConstantInt(Val: Scope, MIRBuilder, SpvType: SpvTypeInt32, EmitIR)) |
1557 | .addUse(RegNo: buildConstantInt(Val: Rows, MIRBuilder, SpvType: SpvTypeInt32, EmitIR)) |
1558 | .addUse(RegNo: buildConstantInt(Val: Columns, MIRBuilder, SpvType: SpvTypeInt32, EmitIR)) |
1559 | .addUse(RegNo: buildConstantInt(Val: Use, MIRBuilder, SpvType: SpvTypeInt32, EmitIR)); |
1560 | }); |
1561 | add(T: ExtensionType, RequiresExplicitLayout: false, MI: NewMI); |
1562 | return NewMI; |
1563 | } |
1564 | |
1565 | SPIRVType *SPIRVGlobalRegistry::getOrCreateOpTypeByOpcode( |
1566 | const Type *Ty, MachineIRBuilder &MIRBuilder, unsigned Opcode) { |
1567 | if (const MachineInstr *MI = findMI(T: Ty, RequiresExplicitLayout: false, MF: &MIRBuilder.getMF())) |
1568 | return MI; |
1569 | const MachineInstr *NewMI = |
1570 | createOpType(MIRBuilder, Op: [&](MachineIRBuilder &MIRBuilder) { |
1571 | return MIRBuilder.buildInstr(Opcode).addDef(RegNo: createTypeVReg(MIRBuilder)); |
1572 | }); |
1573 | add(T: Ty, RequiresExplicitLayout: false, MI: NewMI); |
1574 | return NewMI; |
1575 | } |
1576 | |
1577 | SPIRVType *SPIRVGlobalRegistry::getOrCreateUnknownType( |
1578 | const Type *Ty, MachineIRBuilder &MIRBuilder, unsigned Opcode, |
1579 | const ArrayRef<MCOperand> Operands) { |
1580 | if (const MachineInstr *MI = findMI(T: Ty, RequiresExplicitLayout: false, MF: &MIRBuilder.getMF())) |
1581 | return MI; |
1582 | Register ResVReg = createTypeVReg(MIRBuilder); |
1583 | const MachineInstr *NewMI = |
1584 | createOpType(MIRBuilder, Op: [&](MachineIRBuilder &MIRBuilder) { |
1585 | MachineInstrBuilder MIB = MIRBuilder.buildInstr(Opcode: SPIRV::UNKNOWN_type) |
1586 | .addDef(RegNo: ResVReg) |
1587 | .addImm(Val: Opcode); |
1588 | for (MCOperand Operand : Operands) { |
1589 | if (Operand.isReg()) { |
1590 | MIB.addUse(RegNo: Operand.getReg()); |
1591 | } else if (Operand.isImm()) { |
1592 | MIB.addImm(Val: Operand.getImm()); |
1593 | } |
1594 | } |
1595 | return MIB; |
1596 | }); |
1597 | add(T: Ty, RequiresExplicitLayout: false, MI: NewMI); |
1598 | return NewMI; |
1599 | } |
1600 | |
1601 | // Returns nullptr if unable to recognize SPIRV type name |
1602 | SPIRVType *SPIRVGlobalRegistry::getOrCreateSPIRVTypeByName( |
1603 | StringRef TypeStr, MachineIRBuilder &MIRBuilder, bool EmitIR, |
1604 | SPIRV::StorageClass::StorageClass SC, |
1605 | SPIRV::AccessQualifier::AccessQualifier AQ) { |
1606 | unsigned VecElts = 0; |
1607 | auto &Ctx = MIRBuilder.getMF().getFunction().getContext(); |
1608 | |
1609 | // Parse strings representing either a SPIR-V or OpenCL builtin type. |
1610 | if (hasBuiltinTypePrefix(Name: TypeStr)) |
1611 | return getOrCreateSPIRVType(Ty: SPIRV::parseBuiltinTypeNameToTargetExtType( |
1612 | TypeName: TypeStr.str(), Context&: MIRBuilder.getContext()), |
1613 | MIRBuilder, AccessQual: AQ, ExplicitLayoutRequired: false, EmitIR: true); |
1614 | |
1615 | // Parse type name in either "typeN" or "type vector[N]" format, where |
1616 | // N is the number of elements of the vector. |
1617 | Type *Ty; |
1618 | |
1619 | Ty = parseBasicTypeName(TypeName&: TypeStr, Ctx); |
1620 | if (!Ty) |
1621 | // Unable to recognize SPIRV type name |
1622 | return nullptr; |
1623 | |
1624 | const SPIRVType *SpirvTy = |
1625 | getOrCreateSPIRVType(Ty, MIRBuilder, AccessQual: AQ, ExplicitLayoutRequired: false, EmitIR: true); |
1626 | |
1627 | // Handle "type*" or "type* vector[N]". |
1628 | if (TypeStr.consume_front(Prefix: "*" )) |
1629 | SpirvTy = getOrCreateSPIRVPointerType(BaseType: Ty, MIRBuilder, SC); |
1630 | |
1631 | // Handle "typeN*" or "type vector[N]*". |
1632 | bool IsPtrToVec = TypeStr.consume_back(Suffix: "*" ); |
1633 | |
1634 | if (TypeStr.consume_front(Prefix: " vector[" )) { |
1635 | TypeStr = TypeStr.substr(Start: 0, N: TypeStr.find(C: ']')); |
1636 | } |
1637 | TypeStr.getAsInteger(Radix: 10, Result&: VecElts); |
1638 | if (VecElts > 0) |
1639 | SpirvTy = getOrCreateSPIRVVectorType(BaseType: SpirvTy, NumElements: VecElts, MIRBuilder, EmitIR); |
1640 | |
1641 | if (IsPtrToVec) |
1642 | SpirvTy = getOrCreateSPIRVPointerType(BaseType: SpirvTy, MIRBuilder, SC); |
1643 | |
1644 | return SpirvTy; |
1645 | } |
1646 | |
1647 | SPIRVType * |
1648 | SPIRVGlobalRegistry::getOrCreateSPIRVIntegerType(unsigned BitWidth, |
1649 | MachineIRBuilder &MIRBuilder) { |
1650 | return getOrCreateSPIRVType( |
1651 | Ty: IntegerType::get(C&: MIRBuilder.getMF().getFunction().getContext(), NumBits: BitWidth), |
1652 | MIRBuilder, AccessQual: SPIRV::AccessQualifier::ReadWrite, ExplicitLayoutRequired: false, EmitIR: true); |
1653 | } |
1654 | |
1655 | SPIRVType *SPIRVGlobalRegistry::finishCreatingSPIRVType(const Type *LLVMTy, |
1656 | SPIRVType *SpirvType) { |
1657 | assert(CurMF == SpirvType->getMF()); |
1658 | VRegToTypeMap[CurMF][getSPIRVTypeID(SpirvType)] = SpirvType; |
1659 | SPIRVToLLVMType[SpirvType] = unifyPtrType(Ty: LLVMTy); |
1660 | return SpirvType; |
1661 | } |
1662 | |
1663 | SPIRVType *SPIRVGlobalRegistry::getOrCreateSPIRVType(unsigned BitWidth, |
1664 | MachineInstr &I, |
1665 | const SPIRVInstrInfo &TII, |
1666 | unsigned SPIRVOPcode, |
1667 | Type *Ty) { |
1668 | if (const MachineInstr *MI = findMI(T: Ty, RequiresExplicitLayout: false, MF: CurMF)) |
1669 | return MI; |
1670 | MachineBasicBlock &DepMBB = I.getMF()->front(); |
1671 | MachineIRBuilder MIRBuilder(DepMBB, DepMBB.getFirstNonPHI()); |
1672 | const MachineInstr *NewMI = |
1673 | createOpType(MIRBuilder, Op: [&](MachineIRBuilder &MIRBuilder) { |
1674 | return BuildMI(BB&: MIRBuilder.getMBB(), I&: *MIRBuilder.getInsertPt(), |
1675 | MIMD: MIRBuilder.getDL(), MCID: TII.get(Opcode: SPIRVOPcode)) |
1676 | .addDef(RegNo: createTypeVReg(MRI&: CurMF->getRegInfo())) |
1677 | .addImm(Val: BitWidth) |
1678 | .addImm(Val: 0); |
1679 | }); |
1680 | add(T: Ty, RequiresExplicitLayout: false, MI: NewMI); |
1681 | return finishCreatingSPIRVType(LLVMTy: Ty, SpirvType: NewMI); |
1682 | } |
1683 | |
1684 | SPIRVType *SPIRVGlobalRegistry::getOrCreateSPIRVIntegerType( |
1685 | unsigned BitWidth, MachineInstr &I, const SPIRVInstrInfo &TII) { |
1686 | // Maybe adjust bit width to keep DuplicateTracker consistent. Without |
1687 | // such an adjustment SPIRVGlobalRegistry::getOpTypeInt() could create, for |
1688 | // example, the same "OpTypeInt 8" type for a series of LLVM integer types |
1689 | // with number of bits less than 8, causing duplicate type definitions. |
1690 | if (BitWidth > 1) |
1691 | BitWidth = adjustOpTypeIntWidth(Width: BitWidth); |
1692 | Type *LLVMTy = IntegerType::get(C&: CurMF->getFunction().getContext(), NumBits: BitWidth); |
1693 | return getOrCreateSPIRVType(BitWidth, I, TII, SPIRVOPcode: SPIRV::OpTypeInt, Ty: LLVMTy); |
1694 | } |
1695 | |
1696 | SPIRVType *SPIRVGlobalRegistry::getOrCreateSPIRVFloatType( |
1697 | unsigned BitWidth, MachineInstr &I, const SPIRVInstrInfo &TII) { |
1698 | LLVMContext &Ctx = CurMF->getFunction().getContext(); |
1699 | Type *LLVMTy; |
1700 | switch (BitWidth) { |
1701 | case 16: |
1702 | LLVMTy = Type::getHalfTy(C&: Ctx); |
1703 | break; |
1704 | case 32: |
1705 | LLVMTy = Type::getFloatTy(C&: Ctx); |
1706 | break; |
1707 | case 64: |
1708 | LLVMTy = Type::getDoubleTy(C&: Ctx); |
1709 | break; |
1710 | default: |
1711 | llvm_unreachable("Bit width is of unexpected size." ); |
1712 | } |
1713 | return getOrCreateSPIRVType(BitWidth, I, TII, SPIRVOPcode: SPIRV::OpTypeFloat, Ty: LLVMTy); |
1714 | } |
1715 | |
1716 | SPIRVType * |
1717 | SPIRVGlobalRegistry::getOrCreateSPIRVBoolType(MachineIRBuilder &MIRBuilder, |
1718 | bool EmitIR) { |
1719 | return getOrCreateSPIRVType( |
1720 | Ty: IntegerType::get(C&: MIRBuilder.getMF().getFunction().getContext(), NumBits: 1), |
1721 | MIRBuilder, AccessQual: SPIRV::AccessQualifier::ReadWrite, ExplicitLayoutRequired: false, EmitIR); |
1722 | } |
1723 | |
1724 | SPIRVType * |
1725 | SPIRVGlobalRegistry::getOrCreateSPIRVBoolType(MachineInstr &I, |
1726 | const SPIRVInstrInfo &TII) { |
1727 | Type *Ty = IntegerType::get(C&: CurMF->getFunction().getContext(), NumBits: 1); |
1728 | if (const MachineInstr *MI = findMI(T: Ty, RequiresExplicitLayout: false, MF: CurMF)) |
1729 | return MI; |
1730 | MachineBasicBlock &DepMBB = I.getMF()->front(); |
1731 | MachineIRBuilder MIRBuilder(DepMBB, DepMBB.getFirstNonPHI()); |
1732 | const MachineInstr *NewMI = |
1733 | createOpType(MIRBuilder, Op: [&](MachineIRBuilder &MIRBuilder) { |
1734 | return BuildMI(BB&: MIRBuilder.getMBB(), I&: *MIRBuilder.getInsertPt(), |
1735 | MIMD: MIRBuilder.getDL(), MCID: TII.get(Opcode: SPIRV::OpTypeBool)) |
1736 | .addDef(RegNo: createTypeVReg(MRI&: CurMF->getRegInfo())); |
1737 | }); |
1738 | add(T: Ty, RequiresExplicitLayout: false, MI: NewMI); |
1739 | return finishCreatingSPIRVType(LLVMTy: Ty, SpirvType: NewMI); |
1740 | } |
1741 | |
1742 | SPIRVType *SPIRVGlobalRegistry::getOrCreateSPIRVVectorType( |
1743 | SPIRVType *BaseType, unsigned NumElements, MachineIRBuilder &MIRBuilder, |
1744 | bool EmitIR) { |
1745 | return getOrCreateSPIRVType( |
1746 | Ty: FixedVectorType::get(ElementType: const_cast<Type *>(getTypeForSPIRVType(Ty: BaseType)), |
1747 | NumElts: NumElements), |
1748 | MIRBuilder, AccessQual: SPIRV::AccessQualifier::ReadWrite, ExplicitLayoutRequired: false, EmitIR); |
1749 | } |
1750 | |
1751 | SPIRVType *SPIRVGlobalRegistry::getOrCreateSPIRVVectorType( |
1752 | SPIRVType *BaseType, unsigned NumElements, MachineInstr &I, |
1753 | const SPIRVInstrInfo &TII) { |
1754 | Type *Ty = FixedVectorType::get( |
1755 | ElementType: const_cast<Type *>(getTypeForSPIRVType(Ty: BaseType)), NumElts: NumElements); |
1756 | if (const MachineInstr *MI = findMI(T: Ty, RequiresExplicitLayout: false, MF: CurMF)) |
1757 | return MI; |
1758 | MachineInstr *DepMI = const_cast<MachineInstr *>(BaseType); |
1759 | MachineIRBuilder MIRBuilder(*DepMI->getParent(), DepMI->getIterator()); |
1760 | const MachineInstr *NewMI = |
1761 | createOpType(MIRBuilder, Op: [&](MachineIRBuilder &MIRBuilder) { |
1762 | return BuildMI(BB&: MIRBuilder.getMBB(), I&: *MIRBuilder.getInsertPt(), |
1763 | MIMD: MIRBuilder.getDL(), MCID: TII.get(Opcode: SPIRV::OpTypeVector)) |
1764 | .addDef(RegNo: createTypeVReg(MRI&: CurMF->getRegInfo())) |
1765 | .addUse(RegNo: getSPIRVTypeID(SpirvType: BaseType)) |
1766 | .addImm(Val: NumElements); |
1767 | }); |
1768 | add(T: Ty, RequiresExplicitLayout: false, MI: NewMI); |
1769 | return finishCreatingSPIRVType(LLVMTy: Ty, SpirvType: NewMI); |
1770 | } |
1771 | |
1772 | SPIRVType *SPIRVGlobalRegistry::getOrCreateSPIRVPointerType( |
1773 | const Type *BaseType, MachineInstr &I, |
1774 | SPIRV::StorageClass::StorageClass SC) { |
1775 | MachineIRBuilder MIRBuilder(I); |
1776 | return getOrCreateSPIRVPointerType(BaseType, MIRBuilder, SC); |
1777 | } |
1778 | |
1779 | SPIRVType *SPIRVGlobalRegistry::getOrCreateSPIRVPointerType( |
1780 | const Type *BaseType, MachineIRBuilder &MIRBuilder, |
1781 | SPIRV::StorageClass::StorageClass SC) { |
1782 | // TODO: Need to check if EmitIr should always be true. |
1783 | SPIRVType *SpirvBaseType = getOrCreateSPIRVType( |
1784 | Ty: BaseType, MIRBuilder, AccessQual: SPIRV::AccessQualifier::ReadWrite, |
1785 | ExplicitLayoutRequired: storageClassRequiresExplictLayout(SC), EmitIR: true); |
1786 | assert(SpirvBaseType); |
1787 | return getOrCreateSPIRVPointerTypeInternal(BaseType: SpirvBaseType, MIRBuilder, SC); |
1788 | } |
1789 | |
1790 | SPIRVType *SPIRVGlobalRegistry::changePointerStorageClass( |
1791 | SPIRVType *PtrType, SPIRV::StorageClass::StorageClass SC, MachineInstr &I) { |
1792 | [[maybe_unused]] SPIRV::StorageClass::StorageClass OldSC = |
1793 | getPointerStorageClass(Type: PtrType); |
1794 | assert(storageClassRequiresExplictLayout(OldSC) == |
1795 | storageClassRequiresExplictLayout(SC)); |
1796 | |
1797 | SPIRVType *PointeeType = getPointeeType(PtrType); |
1798 | MachineIRBuilder MIRBuilder(I); |
1799 | return getOrCreateSPIRVPointerTypeInternal(BaseType: PointeeType, MIRBuilder, SC); |
1800 | } |
1801 | |
1802 | SPIRVType *SPIRVGlobalRegistry::getOrCreateSPIRVPointerType( |
1803 | SPIRVType *BaseType, MachineIRBuilder &MIRBuilder, |
1804 | SPIRV::StorageClass::StorageClass SC) { |
1805 | const Type *LLVMType = getTypeForSPIRVType(Ty: BaseType); |
1806 | assert(!storageClassRequiresExplictLayout(SC)); |
1807 | SPIRVType *R = getOrCreateSPIRVPointerType(BaseType: LLVMType, MIRBuilder, SC); |
1808 | assert( |
1809 | getPointeeType(R) == BaseType && |
1810 | "The base type was not correctly laid out for the given storage class." ); |
1811 | return R; |
1812 | } |
1813 | |
1814 | SPIRVType *SPIRVGlobalRegistry::getOrCreateSPIRVPointerTypeInternal( |
1815 | SPIRVType *BaseType, MachineIRBuilder &MIRBuilder, |
1816 | SPIRV::StorageClass::StorageClass SC) { |
1817 | const Type *PointerElementType = getTypeForSPIRVType(Ty: BaseType); |
1818 | unsigned AddressSpace = storageClassToAddressSpace(SC); |
1819 | if (const MachineInstr *MI = findMI(PointeeTy: PointerElementType, AddressSpace, MF: CurMF)) |
1820 | return MI; |
1821 | Type *Ty = TypedPointerType::get(ElementType: const_cast<Type *>(PointerElementType), |
1822 | AddressSpace); |
1823 | const MachineInstr *NewMI = |
1824 | createOpType(MIRBuilder, Op: [&](MachineIRBuilder &MIRBuilder) { |
1825 | return BuildMI(BB&: MIRBuilder.getMBB(), I: MIRBuilder.getInsertPt(), |
1826 | MIMD: MIRBuilder.getDebugLoc(), |
1827 | MCID: MIRBuilder.getTII().get(Opcode: SPIRV::OpTypePointer)) |
1828 | .addDef(RegNo: createTypeVReg(MRI&: CurMF->getRegInfo())) |
1829 | .addImm(Val: static_cast<uint32_t>(SC)) |
1830 | .addUse(RegNo: getSPIRVTypeID(SpirvType: BaseType)); |
1831 | }); |
1832 | add(PointeeTy: PointerElementType, AddressSpace, MI: NewMI); |
1833 | return finishCreatingSPIRVType(LLVMTy: Ty, SpirvType: NewMI); |
1834 | } |
1835 | |
1836 | Register SPIRVGlobalRegistry::getOrCreateUndef(MachineInstr &I, |
1837 | SPIRVType *SpvType, |
1838 | const SPIRVInstrInfo &TII) { |
1839 | UndefValue *UV = |
1840 | UndefValue::get(T: const_cast<Type *>(getTypeForSPIRVType(Ty: SpvType))); |
1841 | Register Res = find(V: UV, MF: CurMF); |
1842 | if (Res.isValid()) |
1843 | return Res; |
1844 | |
1845 | LLT LLTy = LLT::scalar(SizeInBits: 64); |
1846 | Res = CurMF->getRegInfo().createGenericVirtualRegister(Ty: LLTy); |
1847 | CurMF->getRegInfo().setRegClass(Reg: Res, RC: &SPIRV::iIDRegClass); |
1848 | assignSPIRVTypeToVReg(SpirvType: SpvType, VReg: Res, MF: *CurMF); |
1849 | |
1850 | MachineInstr *DepMI = const_cast<MachineInstr *>(SpvType); |
1851 | MachineIRBuilder MIRBuilder(*DepMI->getParent(), DepMI->getIterator()); |
1852 | const MachineInstr *NewMI = |
1853 | createOpType(MIRBuilder, Op: [&](MachineIRBuilder &MIRBuilder) { |
1854 | auto MIB = BuildMI(BB&: MIRBuilder.getMBB(), I&: *MIRBuilder.getInsertPt(), |
1855 | MIMD: MIRBuilder.getDL(), MCID: TII.get(Opcode: SPIRV::OpUndef)) |
1856 | .addDef(RegNo: Res) |
1857 | .addUse(RegNo: getSPIRVTypeID(SpirvType: SpvType)); |
1858 | const auto &ST = CurMF->getSubtarget(); |
1859 | constrainSelectedInstRegOperands(I&: *MIB, TII: *ST.getInstrInfo(), |
1860 | TRI: *ST.getRegisterInfo(), |
1861 | RBI: *ST.getRegBankInfo()); |
1862 | return MIB; |
1863 | }); |
1864 | add(V: UV, MI: NewMI); |
1865 | return Res; |
1866 | } |
1867 | |
1868 | const TargetRegisterClass * |
1869 | SPIRVGlobalRegistry::getRegClass(SPIRVType *SpvType) const { |
1870 | unsigned Opcode = SpvType->getOpcode(); |
1871 | switch (Opcode) { |
1872 | case SPIRV::OpTypeFloat: |
1873 | return &SPIRV::fIDRegClass; |
1874 | case SPIRV::OpTypePointer: |
1875 | return &SPIRV::pIDRegClass; |
1876 | case SPIRV::OpTypeVector: { |
1877 | SPIRVType *ElemType = getSPIRVTypeForVReg(VReg: SpvType->getOperand(i: 1).getReg()); |
1878 | unsigned ElemOpcode = ElemType ? ElemType->getOpcode() : 0; |
1879 | if (ElemOpcode == SPIRV::OpTypeFloat) |
1880 | return &SPIRV::vfIDRegClass; |
1881 | if (ElemOpcode == SPIRV::OpTypePointer) |
1882 | return &SPIRV::vpIDRegClass; |
1883 | return &SPIRV::vIDRegClass; |
1884 | } |
1885 | } |
1886 | return &SPIRV::iIDRegClass; |
1887 | } |
1888 | |
1889 | inline unsigned getAS(SPIRVType *SpvType) { |
1890 | return storageClassToAddressSpace( |
1891 | SC: static_cast<SPIRV::StorageClass::StorageClass>( |
1892 | SpvType->getOperand(i: 1).getImm())); |
1893 | } |
1894 | |
1895 | LLT SPIRVGlobalRegistry::getRegType(SPIRVType *SpvType) const { |
1896 | unsigned Opcode = SpvType ? SpvType->getOpcode() : 0; |
1897 | switch (Opcode) { |
1898 | case SPIRV::OpTypeInt: |
1899 | case SPIRV::OpTypeFloat: |
1900 | case SPIRV::OpTypeBool: |
1901 | return LLT::scalar(SizeInBits: getScalarOrVectorBitWidth(Type: SpvType)); |
1902 | case SPIRV::OpTypePointer: |
1903 | return LLT::pointer(AddressSpace: getAS(SpvType), SizeInBits: getPointerSize()); |
1904 | case SPIRV::OpTypeVector: { |
1905 | SPIRVType *ElemType = getSPIRVTypeForVReg(VReg: SpvType->getOperand(i: 1).getReg()); |
1906 | LLT ET; |
1907 | switch (ElemType ? ElemType->getOpcode() : 0) { |
1908 | case SPIRV::OpTypePointer: |
1909 | ET = LLT::pointer(AddressSpace: getAS(SpvType: ElemType), SizeInBits: getPointerSize()); |
1910 | break; |
1911 | case SPIRV::OpTypeInt: |
1912 | case SPIRV::OpTypeFloat: |
1913 | case SPIRV::OpTypeBool: |
1914 | ET = LLT::scalar(SizeInBits: getScalarOrVectorBitWidth(Type: ElemType)); |
1915 | break; |
1916 | default: |
1917 | ET = LLT::scalar(SizeInBits: 64); |
1918 | } |
1919 | return LLT::fixed_vector( |
1920 | NumElements: static_cast<unsigned>(SpvType->getOperand(i: 2).getImm()), ScalarTy: ET); |
1921 | } |
1922 | } |
1923 | return LLT::scalar(SizeInBits: 64); |
1924 | } |
1925 | |
1926 | // Aliasing list MD contains several scope MD nodes whithin it. Each scope MD |
1927 | // has a selfreference and an extra MD node for aliasing domain and also it |
1928 | // can contain an optional string operand. Domain MD contains a self-reference |
1929 | // with an optional string operand. Here we unfold the list, creating SPIR-V |
1930 | // aliasing instructions. |
1931 | // TODO: add support for an optional string operand. |
1932 | MachineInstr *SPIRVGlobalRegistry::getOrAddMemAliasingINTELInst( |
1933 | MachineIRBuilder &MIRBuilder, const MDNode *AliasingListMD) { |
1934 | if (AliasingListMD->getNumOperands() == 0) |
1935 | return nullptr; |
1936 | if (auto L = AliasInstMDMap.find(x: AliasingListMD); L != AliasInstMDMap.end()) |
1937 | return L->second; |
1938 | |
1939 | SmallVector<MachineInstr *> ScopeList; |
1940 | MachineRegisterInfo *MRI = MIRBuilder.getMRI(); |
1941 | for (const MDOperand &MDListOp : AliasingListMD->operands()) { |
1942 | if (MDNode *ScopeMD = dyn_cast<MDNode>(Val: MDListOp)) { |
1943 | if (ScopeMD->getNumOperands() < 2) |
1944 | return nullptr; |
1945 | MDNode *DomainMD = dyn_cast<MDNode>(Val: ScopeMD->getOperand(I: 1)); |
1946 | if (!DomainMD) |
1947 | return nullptr; |
1948 | auto *Domain = [&] { |
1949 | auto D = AliasInstMDMap.find(x: DomainMD); |
1950 | if (D != AliasInstMDMap.end()) |
1951 | return D->second; |
1952 | const Register Ret = MRI->createVirtualRegister(RegClass: &SPIRV::IDRegClass); |
1953 | auto MIB = |
1954 | MIRBuilder.buildInstr(Opcode: SPIRV::OpAliasDomainDeclINTEL).addDef(RegNo: Ret); |
1955 | return MIB.getInstr(); |
1956 | }(); |
1957 | AliasInstMDMap.insert(x: std::make_pair(x&: DomainMD, y&: Domain)); |
1958 | auto *Scope = [&] { |
1959 | auto S = AliasInstMDMap.find(x: ScopeMD); |
1960 | if (S != AliasInstMDMap.end()) |
1961 | return S->second; |
1962 | const Register Ret = MRI->createVirtualRegister(RegClass: &SPIRV::IDRegClass); |
1963 | auto MIB = MIRBuilder.buildInstr(Opcode: SPIRV::OpAliasScopeDeclINTEL) |
1964 | .addDef(RegNo: Ret) |
1965 | .addUse(RegNo: Domain->getOperand(i: 0).getReg()); |
1966 | return MIB.getInstr(); |
1967 | }(); |
1968 | AliasInstMDMap.insert(x: std::make_pair(x&: ScopeMD, y&: Scope)); |
1969 | ScopeList.push_back(Elt: Scope); |
1970 | } |
1971 | } |
1972 | |
1973 | const Register Ret = MRI->createVirtualRegister(RegClass: &SPIRV::IDRegClass); |
1974 | auto MIB = |
1975 | MIRBuilder.buildInstr(Opcode: SPIRV::OpAliasScopeListDeclINTEL).addDef(RegNo: Ret); |
1976 | for (auto *Scope : ScopeList) |
1977 | MIB.addUse(RegNo: Scope->getOperand(i: 0).getReg()); |
1978 | auto List = MIB.getInstr(); |
1979 | AliasInstMDMap.insert(x: std::make_pair(x&: AliasingListMD, y&: List)); |
1980 | return List; |
1981 | } |
1982 | |
1983 | void SPIRVGlobalRegistry::buildMemAliasingOpDecorate( |
1984 | Register Reg, MachineIRBuilder &MIRBuilder, uint32_t Dec, |
1985 | const MDNode *AliasingListMD) { |
1986 | MachineInstr *AliasList = |
1987 | getOrAddMemAliasingINTELInst(MIRBuilder, AliasingListMD); |
1988 | if (!AliasList) |
1989 | return; |
1990 | MIRBuilder.buildInstr(Opcode: SPIRV::OpDecorate) |
1991 | .addUse(RegNo: Reg) |
1992 | .addImm(Val: Dec) |
1993 | .addUse(RegNo: AliasList->getOperand(i: 0).getReg()); |
1994 | } |
1995 | void SPIRVGlobalRegistry::replaceAllUsesWith(Value *Old, Value *New, |
1996 | bool DeleteOld) { |
1997 | Old->replaceAllUsesWith(V: New); |
1998 | updateIfExistDeducedElementType(OldVal: Old, NewVal: New, DeleteOld); |
1999 | updateIfExistAssignPtrTypeInstr(OldVal: Old, NewVal: New, DeleteOld); |
2000 | } |
2001 | |
2002 | void SPIRVGlobalRegistry::buildAssignType(IRBuilder<> &B, Type *Ty, |
2003 | Value *Arg) { |
2004 | Value *OfType = getNormalizedPoisonValue(Ty); |
2005 | CallInst *AssignCI = nullptr; |
2006 | if (Arg->getType()->isAggregateType() && Ty->isAggregateType() && |
2007 | allowEmitFakeUse(Arg)) { |
2008 | LLVMContext &Ctx = Arg->getContext(); |
2009 | SmallVector<Metadata *, 2> ArgMDs{ |
2010 | MDNode::get(Context&: Ctx, MDs: ValueAsMetadata::getConstant(C: OfType)), |
2011 | MDString::get(Context&: Ctx, Str: Arg->getName())}; |
2012 | B.CreateIntrinsic(ID: Intrinsic::spv_value_md, |
2013 | Args: {MetadataAsValue::get(Context&: Ctx, MD: MDTuple::get(Context&: Ctx, MDs: ArgMDs))}); |
2014 | AssignCI = B.CreateIntrinsic(ID: Intrinsic::fake_use, Args: {Arg}); |
2015 | } else { |
2016 | AssignCI = buildIntrWithMD(IntrID: Intrinsic::spv_assign_type, Types: {Arg->getType()}, |
2017 | Arg: OfType, Arg2: Arg, Imms: {}, B); |
2018 | } |
2019 | addAssignPtrTypeInstr(Val: Arg, AssignPtrTyCI: AssignCI); |
2020 | } |
2021 | |
2022 | void SPIRVGlobalRegistry::buildAssignPtr(IRBuilder<> &B, Type *ElemTy, |
2023 | Value *Arg) { |
2024 | Value *OfType = PoisonValue::get(T: ElemTy); |
2025 | CallInst *AssignPtrTyCI = findAssignPtrTypeInstr(Val: Arg); |
2026 | Function *CurrF = |
2027 | B.GetInsertBlock() ? B.GetInsertBlock()->getParent() : nullptr; |
2028 | if (AssignPtrTyCI == nullptr || |
2029 | AssignPtrTyCI->getParent()->getParent() != CurrF) { |
2030 | AssignPtrTyCI = buildIntrWithMD( |
2031 | IntrID: Intrinsic::spv_assign_ptr_type, Types: {Arg->getType()}, Arg: OfType, Arg2: Arg, |
2032 | Imms: {B.getInt32(C: getPointerAddressSpace(T: Arg->getType()))}, B); |
2033 | addDeducedElementType(Val: AssignPtrTyCI, Ty: ElemTy); |
2034 | addDeducedElementType(Val: Arg, Ty: ElemTy); |
2035 | addAssignPtrTypeInstr(Val: Arg, AssignPtrTyCI); |
2036 | } else { |
2037 | updateAssignType(AssignCI: AssignPtrTyCI, Arg, OfType); |
2038 | } |
2039 | } |
2040 | |
2041 | void SPIRVGlobalRegistry::updateAssignType(CallInst *AssignCI, Value *Arg, |
2042 | Value *OfType) { |
2043 | AssignCI->setArgOperand(i: 1, v: buildMD(Arg: OfType)); |
2044 | if (cast<IntrinsicInst>(Val: AssignCI)->getIntrinsicID() != |
2045 | Intrinsic::spv_assign_ptr_type) |
2046 | return; |
2047 | |
2048 | // update association with the pointee type |
2049 | Type *ElemTy = OfType->getType(); |
2050 | addDeducedElementType(Val: AssignCI, Ty: ElemTy); |
2051 | addDeducedElementType(Val: Arg, Ty: ElemTy); |
2052 | } |
2053 | |
2054 | void SPIRVGlobalRegistry::addStructOffsetDecorations( |
2055 | Register Reg, StructType *Ty, MachineIRBuilder &MIRBuilder) { |
2056 | DataLayout DL; |
2057 | ArrayRef<TypeSize> Offsets = DL.getStructLayout(Ty)->getMemberOffsets(); |
2058 | for (uint32_t I = 0; I < Ty->getNumElements(); ++I) { |
2059 | buildOpMemberDecorate(Reg, MIRBuilder, Dec: SPIRV::Decoration::Offset, Member: I, |
2060 | DecArgs: {static_cast<uint32_t>(Offsets[I])}); |
2061 | } |
2062 | } |
2063 | |
2064 | void SPIRVGlobalRegistry::addArrayStrideDecorations( |
2065 | Register Reg, Type *ElementType, MachineIRBuilder &MIRBuilder) { |
2066 | uint32_t SizeInBytes = DataLayout().getTypeSizeInBits(Ty: ElementType) / 8; |
2067 | buildOpDecorate(Reg, MIRBuilder, Dec: SPIRV::Decoration::ArrayStride, |
2068 | DecArgs: {SizeInBytes}); |
2069 | } |
2070 | |
2071 | bool SPIRVGlobalRegistry::hasBlockDecoration(SPIRVType *Type) const { |
2072 | Register Def = getSPIRVTypeID(SpirvType: Type); |
2073 | for (const MachineInstr &Use : |
2074 | Type->getMF()->getRegInfo().use_instructions(Reg: Def)) { |
2075 | if (Use.getOpcode() != SPIRV::OpDecorate) |
2076 | continue; |
2077 | |
2078 | if (Use.getOperand(i: 1).getImm() == SPIRV::Decoration::Block) |
2079 | return true; |
2080 | } |
2081 | return false; |
2082 | } |
2083 | |