LLVM  14.0.0git
X86PreAMXConfig.cpp
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1 //===- Target/X86/X86PreAMXConfig.cpp - ------------------------*- 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 /// Insert tilecfg for each area of key AMX intrinsic.
10 /// All the key AMX intrinsic's tile operand must come from tileload. And the
11 /// def tile of key AMX intrinsic must be tilestored.
12 /// take tdpbssd for example:
13 /// --------------------------------------------------------------------------
14 /// %t1 = call x86_amx @llvm.x86.tileloadd64.internal(...) key
15 /// %t2 = call x86_amx @llvm.x86.tileloadd64.internal(...) |
16 /// %t3 = call x86_amx @llvm.x86.tileloadd64.internal(...) amx
17 /// %td = tail call x86_amx @llvm.x86.tdpbssd.internal(t1, t2, t3) |
18 /// call void @llvm.x86.tilestored64.internal(... td) area
19 /// --------------------------------------------------------------------------
20 /// This pass will insert tilecfg before every key-amx-area, some like:
21 /// --------------------------------------------------------------------------
22 /// %cfgmem = alloca <16 x i32>, align 4 * allocate mem
23 /// store <16 x i32> zeroinitializer, <16 x i32>* %cfgmem * zero init
24 /// ...
25 /// ... pre-config shape of %t1 *
26 /// store volatile i8 %m, i8* %amx.tmm.0.shape.row, align 1 *
27 /// store volatile i16 %k, i16* %amx.tmm.0.shape.col, align 2 * pre-config
28 /// ... *
29 /// ... pre-config shape of %t2 * shapes
30 /// store volatile i8 %k, i8* %amx.tmm.1.shape.row, align 1 *
31 /// store volatile i16 %n, i16* %amx.tmm.1.shape.col, align 2 *
32 /// ...
33 /// call void @llvm.x86.ldtilecfg(i8* %cfgmem) * tile config
34 //
35 //===----------------------------------------------------------------------===//
36 //
37 #include "X86.h"
38 #include "llvm/ADT/SmallSet.h"
39 #include "llvm/Analysis/TargetTransformInfo.h"
40 #include "llvm/CodeGen/Passes.h"
41 #include "llvm/CodeGen/TargetPassConfig.h"
42 #include "llvm/CodeGen/ValueTypes.h"
43 #include "llvm/IR/DataLayout.h"
44 #include "llvm/IR/Function.h"
45 #include "llvm/IR/IRBuilder.h"
46 #include "llvm/IR/Instructions.h"
47 #include "llvm/IR/IntrinsicInst.h"
48 #include "llvm/IR/IntrinsicsX86.h"
49 #include "llvm/IR/PatternMatch.h"
50 #include "llvm/InitializePasses.h"
51 #include "llvm/Pass.h"
52 #include "llvm/Support/raw_ostream.h"
53 #include "llvm/Target/TargetMachine.h"
54 
55 using namespace llvm;
56 using namespace PatternMatch;
57 
58 #define DEBUG_TYPE "pre-amx-config"
59 
60 static bool isAMXIntrinsic(IntrinsicInst *II) {
61  for (Value *Operand : II->operands())
62  if (Operand->getType()->isX86_AMXTy())
63  return true;
64  return II->getType()->isX86_AMXTy();
65 }
66 
67 static bool isTileLoad(IntrinsicInst *II) {
68  return II->getIntrinsicID() == Intrinsic::x86_tileloadd64_internal ||
69  II->getIntrinsicID() == Intrinsic::x86_tileloaddt164_internal;
70 }
71 
72 static bool isTileStore(IntrinsicInst *II) {
73  return II->getIntrinsicID() == Intrinsic::x86_tilestored64_internal;
74 }
75 
76 #ifndef NDEBUG
77 static bool onlyTileDef(IntrinsicInst *II) {
78  for (Value *Operand : II->operands())
79  if (Operand->getType()->isX86_AMXTy())
80  return false;
81  return II->getType()->isX86_AMXTy();
82 }
83 
84 static bool brokenVolatile(Instruction *I) {
85  // Todo: it is weak to identify a normal call here.
86  if ((isa<CallInst>(I) && !isa<IntrinsicInst>(I)) || I->isTerminator())
87  return true;
88  return false;
89 }
90 #endif
91 
92 namespace {
93 class X86PreAMXConfig {
94  Function &F;
95 
96 public:
97  X86PreAMXConfig(Function &Func) : F(Func) {}
98  bool preTileConfig();
99  bool addTileConfig(Instruction *ModelStart, SmallVector<Value *, 8> &Shapes);
100  bool findConfigShapes(
101  DenseMap<Instruction *, SmallVector<Value *, 8>> &PosAndShapes);
102  bool getKeyAMXShapes(IntrinsicInst *KeyAMX, SmallVector<Value *, 8> &Shapes);
103  bool preWriteTileCfg(Value *I8Ptr, Instruction *Pos,
104  SmallVector<Value *, 8> &Shapes);
105  BasicBlock::iterator
106  getShapesAndConfigPosEnd(BasicBlock::iterator Iter,
107  SmallVector<Value *, 8> &Shapes);
108  bool checkVolatileModel(SmallSet<Value *, 4> &Loads, IntrinsicInst *Store,
109  IntrinsicInst *KeyAMX);
110 };
111 
112 // Orderly write the shapes in tilecfg's mem. This maybe not right.
113 // Because the first shape may not corresponding to the first tmm register,
114 // so we need to handle at at X86FastTileConfig::materializeTileCfg()
115 // after register allocation.
116 // For example:
117 // --------------------------------------------------------------------------
118 // zeroinitialize tilecfg's mem (of ldtilecfg)
119 // --------------------------------------------------------------------------
120 // ... pre-config shape of %t1 *
121 // %amx.tmm.0.shape.row = getelementptr i8, i8* %mem, i64 48 *
122 // %amx.tmm.0.shape.col = getelementptr i16, i16* %mem, i64 16 *
123 // store volatile i8 %m, i8* %amx.tmm.0.shape.row, align 1 *
124 // store volatile i16 %k, i16* %amx.tmm.0.shape.col, align 2 * pre-config
125 // ... *
126 // ... pre-config shape of %t2 *
127 // %amx.tmm.1.shape.row = getelementptr i8, i8* %mem, i64 49 *
128 // %amx.tmm.1.shape.col = getelementptr i16, i16* %mem, i64 18 *
129 // store volatile i8 %k, i8* %amx.tmm.1.shape.row, align 1 * shapes
130 // store volatile i16 %n, i16* %amx.tmm.1.shape.col, align 2 *
131 // ... *
132 // ... pre-config shape of %t3 * of
133 // %amx.tmm.2.shape.row = getelementptr i8, i8* %mem, i64 50 *
134 // %amx.tmm.2.shape.col = getelementptr i16, i16* %mem, i64 20 *
135 // store volatile i8 %m, i8* %amx.tmm.2.shape.row, align 1 *
136 // store volatile i16 %n, i16* %amx.tmm.2.shape.col, align 2 *
137 // ... * tiles
138 // ... pre-config shape of %td *
139 // %amx.tmm.3.shape.row = getelementptr i8, i8* %mem, i64 51 *
140 // %amx.tmm.3.shape.col = getelementptr i16, i16* %mem, i64 22 *
141 // store volatile i8 %m, i8* %amx.tmm.3.shape.row, align 1 *
142 // store volatile i16 %n, i16* %amx.tmm.3.shape.col, align 2 *
143 // --------------------------------------------------------------------------
144 // call void @llvm.x86.ldtilecfg(i8* %mem) * tile config
145 // --------------------------------------------------------------------------
146 // %t1 = call x86_amx @llvm.x86.tileloadd64.internal(m, k, ...) key
147 // %t2 = call x86_amx @llvm.x86.tileloadd64.internal(k, n, ...)
148 // %t3 = call x86_amx @llvm.x86.tileloadd64.internal(m, n, ...) amx
149 // %td = tail call x86_amx @llvm.x86.tdpbssd.internal(m, n, k, t1, t2, t3)
150 // call void @llvm.x86.tilestored64.internal(... td) area
151 // --------------------------------------------------------------------------
152 bool X86PreAMXConfig::preWriteTileCfg(Value *I8Ptr, Instruction *Pos,
153  SmallVector<Value *, 8> &Shapes) {
154  bool Write = false;
155  LLVMContext &Ctx = Pos->getParent()->getContext();
156  Type *I8Ty = Type::getInt8Ty(Ctx);
157  Type *I16Ty = Type::getInt16Ty(Ctx);
158 
159  // TODO: Currently we defaultly set Palette = 1, it may be assigned to
160  // other value in the future.
161  Value *PaletteOffset = ConstantInt::get(Type::getInt64Ty(Ctx), 0);
162  Value *PaletteValue = ConstantInt::get(Type::getInt8Ty(Ctx), 1);
163  Value *PalettePos =
164  GetElementPtrInst::Create(I8Ty, I8Ptr, PaletteOffset, "", Pos);
165  new StoreInst(PaletteValue, PalettePos, Pos);
166 
167  for (int I = 0, E = Shapes.size() / 2; I < E; I++) {
168  Value *RowOffset = ConstantInt::get(Type::getInt64Ty(Ctx), 48 + I);
169  Value *ColOffset = ConstantInt::get(Type::getInt64Ty(Ctx), 16 + I * 2);
170  const std::string ShapeName = "amx.tmm." + itostr(I);
171  Value *RowPos = GetElementPtrInst::Create(I8Ty, I8Ptr, RowOffset,
172  ShapeName + ".shape.row", Pos);
173  Value *ColPos = GetElementPtrInst::Create(I8Ty, I8Ptr, ColOffset, "", Pos);
174  ColPos = new BitCastInst(ColPos, PointerType::get(I16Ty, 0),
175  ShapeName + ".shape.col", Pos);
176  Value *Row = Shapes[I * 2];
177  Value *Col = Shapes[I * 2 + 1];
178  Row = new TruncInst(Row, I8Ty, "", Pos);
179  new StoreInst(Row, RowPos, Pos);
180  new StoreInst(Col, ColPos, Pos);
181  Write = true;
182  }
183  return Write;
184 }
185 
186 bool X86PreAMXConfig::addTileConfig(Instruction *ModelStart,
187  SmallVector<Value *, 8> &Shapes) {
188  Module *M = F.getParent();
189  IRBuilder<> Builder(ModelStart);
190  const DataLayout &DL = M->getDataLayout();
191  unsigned AddrSpace = DL.getAllocaAddrSpace();
192  LLVMContext &Ctx = Builder.getContext();
193  Type *V512Ty = VectorType::get(Builder.getInt32Ty(), 16, false);
194  Align Alignment = DL.getPrefTypeAlign(Type::getInt32Ty(Ctx));
195 
196  AllocaInst *Addr =
197  new AllocaInst(V512Ty, AddrSpace, "", &F.getEntryBlock().front());
198  Addr->setAlignment(Alignment);
199  Value *I8Ptr = Builder.CreateBitCast(Addr, Builder.getInt8PtrTy());
200 
201  std::array<Value *, 1> Args = {I8Ptr};
202  Instruction *Cfg =
203  Builder.CreateIntrinsic(Intrinsic::x86_ldtilecfg_internal, None, Args);
204 
205  Value *Val0 = Constant::getNullValue(V512Ty);
206  Instruction *Init0 = new StoreInst(Val0, Addr, false, Alignment, Cfg);
207  assert(Init0 && "Not Zero initilizate the cfg mem!");
208 
209  preWriteTileCfg(I8Ptr, Cfg, Shapes);
210 
211  return Init0;
212 }
213 
214 // Todo: We may need to handle "more than one store" case in the future.
215 bool X86PreAMXConfig::checkVolatileModel(SmallSet<Value *, 4> &Loads,
216  IntrinsicInst *Store,
217  IntrinsicInst *KeyAMX) {
218  Value *ST = Store->getOperand(4);
219 
220  // Only has tileload and tilestore.
221  if (!KeyAMX)
222  return (Loads.size() == 1) && Loads.contains(ST);
223 
224  // All Loads should be operands of KeyAMX.
225  // All tile operands of KeyAMX should come from Loads.
226  for (Value *Op : KeyAMX->operands()) {
227  if (Op->getType()->isX86_AMXTy())
228  if (!Loads.erase(Op))
229  return false;
230  }
231 
232  // The def of KeyAMX should be stored into mem.
233  // Todo: is it key amx can be no def?
234  return Loads.empty() && (ST == cast<Value>(KeyAMX));
235 }
236 
237 bool X86PreAMXConfig::getKeyAMXShapes(IntrinsicInst *KeyAMX,
238  SmallVector<Value *, 8> &Shapes) {
239  for (unsigned I = 0; I < KeyAMX->getNumOperands(); I++) {
240  Value *Op = KeyAMX->getOperand(I);
241  if (!Op->getType()->isX86_AMXTy())
242  continue;
243  IntrinsicInst *TileDef = dyn_cast<IntrinsicInst>(Op);
244  assert((TileDef && isTileLoad(TileDef)) &&
245  "All KeyAMX's tile definiation should comes from TileLoad!");
246  Shapes.push_back(TileDef->getOperand(0));
247  Shapes.push_back(TileDef->getOperand(1));
248  }
249  if (!isTileStore(KeyAMX)) {
250  Shapes.push_back(KeyAMX->getOperand(0));
251  Shapes.push_back(KeyAMX->getOperand(1));
252  }
253  return Shapes.size() != 0;
254 }
255 
256 // Collect the shapes and skip the area of current key amx intrinsic.
257 //
258 // For example:
259 // ...
260 // --------------------------------------------------------------------------
261 // %t1 = call x86_amx @llvm.x86.tileloadd64.internal(m, k, ...) record (m,k)
262 // %t2 = call x86_amx @llvm.x86.tileloadd64.internal(k, n, ...) record (m,k)
263 // %t3 = call x86_amx @llvm.x86.tileloadd64.internal(m, n, ...) record (m,k)
264 // %td = call x86_amx @llvm.x86.tdpbssd.internal(...t1, t2, t3)
265 // call void @llvm.x86.tilestored64.internal(m, n,... td) <--PosEnd record (m,k)
266 // --------------------------------------------------------------------------
267 BasicBlock::iterator
268 X86PreAMXConfig::getShapesAndConfigPosEnd(BasicBlock::iterator Iter,
269  SmallVector<Value *, 8> &Shapes) {
270  IntrinsicInst *KeyAMX = nullptr;
271  BasicBlock *BB = Iter->getParent();
272  BasicBlock::iterator PosEnd = BB->end();
273  SmallSet<Value *, 4> Loads;
274 
275  // See TileStore as "Config Position End" and check volatile model.
276  for (auto I = Iter, E = BB->end(); I != E; ++I) {
277  assert(!brokenVolatile(&*I) && "Not reach tile store!");
278  IntrinsicInst *II = dyn_cast<IntrinsicInst>(&*I);
279  if (!II || !isAMXIntrinsic(II))
280  continue;
281 
282  if (isTileLoad(II)) {
283  Loads.insert(II);
284  } else if (isTileStore(II)) {
285  if (!checkVolatileModel(Loads, II, KeyAMX))
286  report_fatal_error("Not Volatile AMX Model!");
287  PosEnd = I;
288  break;
289  } else {
290  assert(!KeyAMX && "Too many key amx intrinsic!");
291  KeyAMX = II;
292  }
293  }
294  assert(PosEnd != BB->end() && "Not find TileStore!");
295 
296  // See KeyAMX as TileStore if only TileLoad and TileStore.
297  if (!KeyAMX)
298  KeyAMX = dyn_cast<IntrinsicInst>(&*PosEnd);
299 
300  // Get Shapes in order.
301  assert(Shapes.empty() && "Shapes should be clean.");
302  getKeyAMXShapes(KeyAMX, Shapes);
303 
304  return PosEnd;
305 }
306 
307 // Record a key amx area's shapes with its position.
308 // Use the first tileload as its position.
309 // For example:
310 // ...
311 // --------------------------------------------------------------------------
312 // %t1 = call x86_amx @llvm.x86.tileloadd64.internal(m, k, ...) <-- pos
313 // %t2 = call x86_amx @llvm.x86.tileloadd64.internal(k, n, ...) /
314 // %t3 = call x86_amx @llvm.x86.tileloadd64.internal(m, n, ...) shapes:
315 // %td = call x86_amx @llvm.x86.tdpbssd.internal(...t1, t2, t3) (m,k)(k,n)
316 // call void @llvm.x86.tilestored64.internal(m, n,... td) (m,n)(m,n)
317 // --------------------------------------------------------------------------
318 bool X86PreAMXConfig::findConfigShapes(
319  DenseMap<Instruction *, SmallVector<Value *, 8>> &PosAndShapes) {
320  bool Find = false;
321  for (BasicBlock &BB : F) {
322  for (BasicBlock::iterator I = BB.begin(), E = BB.end(); I != E; ++I) {
323  IntrinsicInst *II = dyn_cast<IntrinsicInst>(&*I);
324  if (!II)
325  continue;
326  if (!isAMXIntrinsic(II))
327  continue;
328  assert(onlyTileDef(II) && "Not volatile model for AMX at O0!");
329 
330  I = getShapesAndConfigPosEnd(I, PosAndShapes[&*I]);
331  Find = true;
332  }
333  }
334  return Find;
335 }
336 
337 // Insert ldtilecfg and preconfig the shapes for each area of key AMX intrinsic.
338 // e.g. (key amx = tdpbssd)
339 // --------------------------------------------------------------------------
340 // %cfgmem = alloca <16 x i32>, align 4 * allocate mem
341 // store <16 x i32> zeroinitializer, <16 x i32>* %cfgmem * zero init
342 // ...
343 // ... pre-config shape of %t1 *
344 // store volatile i8 %m, i8* %amx.tmm.0.shape.row, align 1 *
345 // store volatile i16 %k, i16* %amx.tmm.0.shape.col, align 2 * pre-config
346 // ... *
347 // ... pre-config shape of %t2 *
348 // store volatile i8 %k, i8* %amx.tmm.1.shape.row, align 1 * shapes
349 // store volatile i16 %n, i16* %amx.tmm.1.shape.col, align 2 *
350 // ... *
351 // ... pre-config shape of %t3 * of
352 // store volatile i8 %m, i8* %amx.tmm.2.shape.row, align 1 *
353 // store volatile i16 %n, i16* %amx.tmm.2.shape.col, align 2 *
354 // ... * tiles
355 // ... pre-config shape of %td *
356 // store volatile i8 %m, i8* %amx.tmm.3.shape.row, align 1 *
357 // store volatile i16 %n, i16* %amx.tmm.3.shape.col, align 2 *
358 //
359 // call void @llvm.x86.ldtilecfg(i8* %cfgmem) * pre-config
360 // --------------------------------------------------------------------------
361 // %t1 = call x86_amx @llvm.x86.tileloadd64.internal(m, k, ...) key
362 // %t2 = call x86_amx @llvm.x86.tileloadd64.internal(k, n, ...)
363 // %t3 = call x86_amx @llvm.x86.tileloadd64.internal(m, n, ...) amx
364 // %td = tail call x86_amx @llvm.x86.tdpbssd.internal(m, n, k, t1, t2, t3)
365 // call void @llvm.x86.tilestored64.internal(... td) area
366 // --------------------------------------------------------------------------
367 bool X86PreAMXConfig::preTileConfig() {
368  DenseMap<Instruction *, SmallVector<Value *, 8>> PosAndShapes;
369  bool NeedCfg = findConfigShapes(PosAndShapes);
370  if (!NeedCfg)
371  return false;
372  for (auto &IPAndShapes : PosAndShapes)
373  addTileConfig(IPAndShapes.first, IPAndShapes.second);
374 
375  return true;
376 }
377 } // anonymous namespace
378 
379 namespace {
380 
381 class X86PreAMXConfigPass : public FunctionPass {
382 public:
383  static char ID;
384 
385  X86PreAMXConfigPass() : FunctionPass(ID) {
386  initializeX86PreAMXConfigPassPass(*PassRegistry::getPassRegistry());
387  }
388 
389  bool runOnFunction(Function &F) override {
390  TargetMachine *TM = &getAnalysis<TargetPassConfig>().getTM<TargetMachine>();
391  bool C = false;
392 
393  // Prepare for fast register allocation at O0.
394  if (TM->getOptLevel() == CodeGenOpt::None) {
395 
396  // We pre-config each key AMX intrinsic at O0.
397  // In theory, one tile config can cover several AMX intrinsics, but
398  // it is very diffcult to classify the tile shapes at O0. So here we
399  // let thing be easy, pre-config every key AMX intrinsic.
400  X86PreAMXConfig PCFG(F);
401  C = PCFG.preTileConfig();
402  }
403 
404  return C;
405  }
406 
407  void getAnalysisUsage(AnalysisUsage &AU) const override {
408  AU.setPreservesCFG();
409  AU.addRequired<TargetPassConfig>();
410  }
411 };
412 
413 } // anonymous namespace
414 
415 static const char PassName[] = "Pre AMX Tile Config";
416 char X86PreAMXConfigPass::ID = 0;
417 INITIALIZE_PASS_BEGIN(X86PreAMXConfigPass, DEBUG_TYPE, PassName, false, false)
418 INITIALIZE_PASS_DEPENDENCY(TargetPassConfig)
419 INITIALIZE_PASS_END(X86PreAMXConfigPass, DEBUG_TYPE, PassName, false, false)
420 
421 FunctionPass *llvm::createX86PreAMXConfigPass() {
422  return new X86PreAMXConfigPass();
423 }
ValueTypes.h
llvm
---------------------— PointerInfo ------------------------------------—
Definition: AllocatorList.h:23
M
We currently emits eax Perhaps this is what we really should generate is Is imull three or four cycles eax eax The current instruction priority is based on pattern complexity The former is more complex because it folds a load so the latter will not be emitted Perhaps we should use AddedComplexity to give LEA32r a higher priority We should always try to match LEA first since the LEA matching code does some estimate to determine whether the match is profitable if we care more about code then imull is better It s two bytes shorter than movl leal On a Pentium M
Definition: README.txt:252
llvm::DataLayout
A parsed version of the target data layout string in and methods for querying it.
Definition: DataLayout.h:112
llvm::User::operands
op_range operands()
Definition: User.h:242
llvm::BasicBlock::iterator
InstListType::iterator iterator
Instruction iterators...
Definition: BasicBlock.h:90
IntrinsicInst.h
llvm::Function
Definition: Function.h:61
Pass.h
llvm::IntrinsicInst::getIntrinsicID
Intrinsic::ID getIntrinsicID() const
Return the intrinsic ID of this intrinsic.
Definition: IntrinsicInst.h:52
DEBUG_TYPE
#define DEBUG_TYPE
Definition: X86PreAMXConfig.cpp:58
llvm::PointerType::get
static PointerType * get(Type *ElementType, unsigned AddressSpace)
This constructs a pointer to an object of the specified type in a numbered address space.
Definition: Type.cpp:691
llvm::BitCastInst
This class represents a no-op cast from one type to another.
Definition: Instructions.h:5192
llvm::SmallVector< Value *, 8 >
llvm::IRBuilder<>
isAMXIntrinsic
static bool isAMXIntrinsic(IntrinsicInst *II)
Definition: X86PreAMXConfig.cpp:60
llvm::Type
The instances of the Type class are immutable: once they are created, they are never changed.
Definition: Type.h:45
llvm::SmallSet
SmallSet - This maintains a set of unique values, optimizing for the case when the set is small (less...
Definition: SmallSet.h:134
llvm::Type::getInt8Ty
static IntegerType * getInt8Ty(LLVMContext &C)
Definition: Type.cpp:201
llvm::Type::getInt32Ty
static IntegerType * getInt32Ty(LLVMContext &C)
Definition: Type.cpp:203
F
#define F(x, y, z)
Definition: MD5.cpp:56
llvm::BasicBlock
LLVM Basic Block Representation.
Definition: BasicBlock.h:58
X86.h
onlyTileDef
static bool onlyTileDef(IntrinsicInst *II)
Definition: X86PreAMXConfig.cpp:77
TargetMachine.h
llvm::PassRegistry::getPassRegistry
static PassRegistry * getPassRegistry()
getPassRegistry - Access the global registry object, which is automatically initialized at applicatio...
Definition: PassRegistry.cpp:31
E
static GCRegistry::Add< CoreCLRGC > E("coreclr", "CoreCLR-compatible GC")
C
(vector float) vec_cmpeq(*A, *B) C
Definition: README_ALTIVEC.txt:86
llvm::AnalysisUsage
Represent the analysis usage information of a pass.
Definition: PassAnalysisSupport.h:47
false
Definition: StackSlotColoring.cpp:142
llvm::Instruction
Definition: Instruction.h:45
llvm::report_fatal_error
void report_fatal_error(Error Err, bool gen_crash_diag=true)
Report a serious error, calling any installed error handler.
Definition: Error.cpp:140
llvm::ConstantInt::get
static Constant * get(Type *Ty, uint64_t V, bool IsSigned=false)
If Ty is a vector type, return a Constant with a splat of the given value.
Definition: Constants.cpp:900
PatternMatch.h
llvm::Align
This struct is a compact representation of a valid (non-zero power of two) alignment.
Definition: Alignment.h:39
isTileStore
static bool isTileStore(IntrinsicInst *II)
Definition: X86PreAMXConfig.cpp:72
INITIALIZE_PASS_END
#define INITIALIZE_PASS_END(passName, arg, name, cfg, analysis)
Definition: PassSupport.h:58
Passes.h
llvm::TargetPassConfig
Target-Independent Code Generator Pass Configuration Options.
Definition: TargetPassConfig.h:84
isTileLoad
static bool isTileLoad(IntrinsicInst *II)
Definition: X86PreAMXConfig.cpp:67
llvm::StoreInst
An instruction for storing to memory.
Definition: Instructions.h:304
llvm::ARM_MB::ST
@ ST
Definition: ARMBaseInfo.h:73
Addr
uint64_t Addr
Definition: ELFObjHandler.cpp:80
llvm::TruncInst
This class represents a truncation of integer types.
Definition: Instructions.h:4747
INITIALIZE_PASS_DEPENDENCY
INITIALIZE_PASS_DEPENDENCY(DominatorTreeWrapperPass)
llvm::LLVMContext
This is an important class for using LLVM in a threaded context.
Definition: LLVMContext.h:68
llvm::DenseMap
Definition: DenseMap.h:714
I
#define I(x, y, z)
Definition: MD5.cpp:59
TargetPassConfig.h
IRBuilder.h
assert
assert(ImpDefSCC.getReg()==AMDGPU::SCC &&ImpDefSCC.isDef())
llvm::TargetMachine
Primary interface to the complete machine description for the target machine.
Definition: TargetMachine.h:79
llvm::SPII::Store
@ Store
Definition: SparcInstrInfo.h:33
llvm::Module
A Module instance is used to store all the information related to an LLVM module.
Definition: Module.h:67
llvm::SmallSet::erase
bool erase(const T &V)
Definition: SmallSet.h:207
Find
static const T * Find(StringRef S, ArrayRef< T > A)
Find KV in array using binary search.
Definition: MCSubtargetInfo.cpp:25
Builder
assume Assume Builder
Definition: AssumeBundleBuilder.cpp:650
llvm::CodeGenOpt::None
@ None
Definition: CodeGen.h:53
llvm::GetElementPtrInst::Create
static GetElementPtrInst * Create(Type *PointeeType, Value *Ptr, ArrayRef< Value * > IdxList, const Twine &NameStr="", Instruction *InsertBefore=nullptr)
Definition: Instructions.h:954
llvm::createX86PreAMXConfigPass
FunctionPass * createX86PreAMXConfigPass()
The pass insert tile config intrinsics for AMX fast register allocation.
Definition: X86PreAMXConfig.cpp:421
DataLayout.h
llvm::AnalysisUsage::setPreservesCFG
void setPreservesCFG()
This function should be called by the pass, iff they do not:
Definition: Pass.cpp:253
llvm::Value::getType
Type * getType() const
All values are typed, get the type of this value.
Definition: Value.h:256
DL
MachineBasicBlock MachineBasicBlock::iterator DebugLoc DL
Definition: AArch64SLSHardening.cpp:76
llvm::SmallSet::insert
std::pair< NoneType, bool > insert(const T &V)
insert - Insert an element into the set if it isn't already there.
Definition: SmallSet.h:180
llvm::ifs::IFSSymbolType::Func
@ Func
llvm::BasicBlock::getContext
LLVMContext & getContext() const
Get the context in which this basic block lives.
Definition: BasicBlock.cpp:32
runOnFunction
static bool runOnFunction(Function &F, bool PostInlining)
Definition: EntryExitInstrumenter.cpp:69
llvm::Type::getInt64Ty
static IntegerType * getInt64Ty(LLVMContext &C)
Definition: Type.cpp:204
llvm::Constant::getNullValue
static Constant * getNullValue(Type *Ty)
Constructor to create a '0' constant of arbitrary type.
Definition: Constants.cpp:348
PassName
static const char PassName[]
Definition: X86PreAMXConfig.cpp:415
llvm::AMDGPU::SendMsg::Op
Op
Definition: SIDefines.h:321
brokenVolatile
static bool brokenVolatile(Instruction *I)
Definition: X86PreAMXConfig.cpp:84
Function.h
llvm::IntrinsicInst
A wrapper class for inspecting calls to intrinsic functions.
Definition: IntrinsicInst.h:45
Instructions.h
llvm::User::getNumOperands
unsigned getNumOperands() const
Definition: User.h:191
INITIALIZE_PASS_BEGIN
#define INITIALIZE_PASS_BEGIN(passName, arg, name, cfg, analysis)
Definition: PassSupport.h:51
llvm::SmallSet::size
size_type size() const
Definition: SmallSet.h:159
llvm::Instruction::getParent
const BasicBlock * getParent() const
Definition: Instruction.h:94
TargetTransformInfo.h
llvm::SmallSet::empty
LLVM_NODISCARD bool empty() const
Definition: SmallSet.h:155
llvm::Type::getInt16Ty
static IntegerType * getInt16Ty(LLVMContext &C)
Definition: Type.cpp:202
TM
const char LLVMTargetMachineRef TM
Definition: PassBuilderBindings.cpp:47
llvm::FunctionPass
FunctionPass class - This class is used to implement most global optimizations.
Definition: Pass.h:298
BB
Common register allocation spilling lr str ldr sxth r3 ldr mla r4 can lr mov lr str ldr sxth r3 mla r4 and then merge mul and lr str ldr sxth r3 mla r4 It also increase the likelihood the store may become dead bb27 Successors according to LLVM BB
Definition: README.txt:39
llvm::AnalysisUsage::addRequired
AnalysisUsage & addRequired()
Definition: PassAnalysisSupport.h:75
llvm::pdb::OMFSegDescFlags::Write
@ Write
llvm::AMDGPU::HSAMD::Kernel::Key::Args
constexpr char Args[]
Key for Kernel::Metadata::mArgs.
Definition: AMDGPUMetadata.h:389
llvm::AllocaInst
an instruction to allocate memory on the stack
Definition: Instructions.h:62
llvm::User::getOperand
Value * getOperand(unsigned i) const
Definition: User.h:169
raw_ostream.h
InitializePasses.h
llvm::Value
LLVM Value Representation.
Definition: Value.h:75
llvm::VectorType::get
static VectorType * get(Type *ElementType, ElementCount EC)
This static method is the primary way to construct an VectorType.
Definition: Type.cpp:632
llvm::initializeX86PreAMXConfigPassPass
void initializeX86PreAMXConfigPassPass(PassRegistry &)
llvm::Type::isX86_AMXTy
bool isX86_AMXTy() const
Return true if this is X86 AMX.
Definition: Type.h:186
llvm::SmallSet::contains
bool contains(const T &V) const
Check if the SmallSet contains the given element.
Definition: SmallSet.h:236
SmallSet.h
llvm::Intrinsic::ID
unsigned ID
Definition: TargetTransformInfo.h:37
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