LLVM  13.0.0git
Operations.cpp
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1 //===-- Operations.cpp ----------------------------------------------------===//
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 #include "llvm/FuzzMutate/Operations.h"
10 #include "llvm/IR/BasicBlock.h"
11 #include "llvm/IR/Constants.h"
12 #include "llvm/IR/Function.h"
13 #include "llvm/IR/Instructions.h"
14 
15 using namespace llvm;
16 using namespace fuzzerop;
17 
18 void llvm::describeFuzzerIntOps(std::vector<fuzzerop::OpDescriptor> &Ops) {
19  Ops.push_back(binOpDescriptor(1, Instruction::Add));
20  Ops.push_back(binOpDescriptor(1, Instruction::Sub));
21  Ops.push_back(binOpDescriptor(1, Instruction::Mul));
22  Ops.push_back(binOpDescriptor(1, Instruction::SDiv));
23  Ops.push_back(binOpDescriptor(1, Instruction::UDiv));
24  Ops.push_back(binOpDescriptor(1, Instruction::SRem));
25  Ops.push_back(binOpDescriptor(1, Instruction::URem));
26  Ops.push_back(binOpDescriptor(1, Instruction::Shl));
27  Ops.push_back(binOpDescriptor(1, Instruction::LShr));
28  Ops.push_back(binOpDescriptor(1, Instruction::AShr));
29  Ops.push_back(binOpDescriptor(1, Instruction::And));
30  Ops.push_back(binOpDescriptor(1, Instruction::Or));
31  Ops.push_back(binOpDescriptor(1, Instruction::Xor));
32 
33  Ops.push_back(cmpOpDescriptor(1, Instruction::ICmp, CmpInst::ICMP_EQ));
34  Ops.push_back(cmpOpDescriptor(1, Instruction::ICmp, CmpInst::ICMP_NE));
35  Ops.push_back(cmpOpDescriptor(1, Instruction::ICmp, CmpInst::ICMP_UGT));
36  Ops.push_back(cmpOpDescriptor(1, Instruction::ICmp, CmpInst::ICMP_UGE));
37  Ops.push_back(cmpOpDescriptor(1, Instruction::ICmp, CmpInst::ICMP_ULT));
38  Ops.push_back(cmpOpDescriptor(1, Instruction::ICmp, CmpInst::ICMP_ULE));
39  Ops.push_back(cmpOpDescriptor(1, Instruction::ICmp, CmpInst::ICMP_SGT));
40  Ops.push_back(cmpOpDescriptor(1, Instruction::ICmp, CmpInst::ICMP_SGE));
41  Ops.push_back(cmpOpDescriptor(1, Instruction::ICmp, CmpInst::ICMP_SLT));
42  Ops.push_back(cmpOpDescriptor(1, Instruction::ICmp, CmpInst::ICMP_SLE));
43 }
44 
45 void llvm::describeFuzzerFloatOps(std::vector<fuzzerop::OpDescriptor> &Ops) {
46  Ops.push_back(binOpDescriptor(1, Instruction::FAdd));
47  Ops.push_back(binOpDescriptor(1, Instruction::FSub));
48  Ops.push_back(binOpDescriptor(1, Instruction::FMul));
49  Ops.push_back(binOpDescriptor(1, Instruction::FDiv));
50  Ops.push_back(binOpDescriptor(1, Instruction::FRem));
51 
52  Ops.push_back(cmpOpDescriptor(1, Instruction::FCmp, CmpInst::FCMP_FALSE));
53  Ops.push_back(cmpOpDescriptor(1, Instruction::FCmp, CmpInst::FCMP_OEQ));
54  Ops.push_back(cmpOpDescriptor(1, Instruction::FCmp, CmpInst::FCMP_OGT));
55  Ops.push_back(cmpOpDescriptor(1, Instruction::FCmp, CmpInst::FCMP_OGE));
56  Ops.push_back(cmpOpDescriptor(1, Instruction::FCmp, CmpInst::FCMP_OLT));
57  Ops.push_back(cmpOpDescriptor(1, Instruction::FCmp, CmpInst::FCMP_OLE));
58  Ops.push_back(cmpOpDescriptor(1, Instruction::FCmp, CmpInst::FCMP_ONE));
59  Ops.push_back(cmpOpDescriptor(1, Instruction::FCmp, CmpInst::FCMP_ORD));
60  Ops.push_back(cmpOpDescriptor(1, Instruction::FCmp, CmpInst::FCMP_UNO));
61  Ops.push_back(cmpOpDescriptor(1, Instruction::FCmp, CmpInst::FCMP_UEQ));
62  Ops.push_back(cmpOpDescriptor(1, Instruction::FCmp, CmpInst::FCMP_UGT));
63  Ops.push_back(cmpOpDescriptor(1, Instruction::FCmp, CmpInst::FCMP_UGE));
64  Ops.push_back(cmpOpDescriptor(1, Instruction::FCmp, CmpInst::FCMP_ULT));
65  Ops.push_back(cmpOpDescriptor(1, Instruction::FCmp, CmpInst::FCMP_ULE));
66  Ops.push_back(cmpOpDescriptor(1, Instruction::FCmp, CmpInst::FCMP_UNE));
67  Ops.push_back(cmpOpDescriptor(1, Instruction::FCmp, CmpInst::FCMP_TRUE));
68 }
69 
70 void llvm::describeFuzzerControlFlowOps(
71  std::vector<fuzzerop::OpDescriptor> &Ops) {
72  Ops.push_back(splitBlockDescriptor(1));
73 }
74 
75 void llvm::describeFuzzerPointerOps(std::vector<fuzzerop::OpDescriptor> &Ops) {
76  Ops.push_back(gepDescriptor(1));
77 }
78 
79 void llvm::describeFuzzerAggregateOps(
80  std::vector<fuzzerop::OpDescriptor> &Ops) {
81  Ops.push_back(extractValueDescriptor(1));
82  Ops.push_back(insertValueDescriptor(1));
83 }
84 
85 void llvm::describeFuzzerVectorOps(std::vector<fuzzerop::OpDescriptor> &Ops) {
86  Ops.push_back(extractElementDescriptor(1));
87  Ops.push_back(insertElementDescriptor(1));
88  Ops.push_back(shuffleVectorDescriptor(1));
89 }
90 
91 OpDescriptor llvm::fuzzerop::binOpDescriptor(unsigned Weight,
92  Instruction::BinaryOps Op) {
93  auto buildOp = [Op](ArrayRef<Value *> Srcs, Instruction *Inst) {
94  return BinaryOperator::Create(Op, Srcs[0], Srcs[1], "B", Inst);
95  };
96  switch (Op) {
97  case Instruction::Add:
98  case Instruction::Sub:
99  case Instruction::Mul:
100  case Instruction::SDiv:
101  case Instruction::UDiv:
102  case Instruction::SRem:
103  case Instruction::URem:
104  case Instruction::Shl:
105  case Instruction::LShr:
106  case Instruction::AShr:
107  case Instruction::And:
108  case Instruction::Or:
109  case Instruction::Xor:
110  return {Weight, {anyIntType(), matchFirstType()}, buildOp};
111  case Instruction::FAdd:
112  case Instruction::FSub:
113  case Instruction::FMul:
114  case Instruction::FDiv:
115  case Instruction::FRem:
116  return {Weight, {anyFloatType(), matchFirstType()}, buildOp};
117  case Instruction::BinaryOpsEnd:
118  llvm_unreachable("Value out of range of enum");
119  }
120  llvm_unreachable("Covered switch");
121 }
122 
123 OpDescriptor llvm::fuzzerop::cmpOpDescriptor(unsigned Weight,
124  Instruction::OtherOps CmpOp,
125  CmpInst::Predicate Pred) {
126  auto buildOp = [CmpOp, Pred](ArrayRef<Value *> Srcs, Instruction *Inst) {
127  return CmpInst::Create(CmpOp, Pred, Srcs[0], Srcs[1], "C", Inst);
128  };
129 
130  switch (CmpOp) {
131  case Instruction::ICmp:
132  return {Weight, {anyIntType(), matchFirstType()}, buildOp};
133  case Instruction::FCmp:
134  return {Weight, {anyFloatType(), matchFirstType()}, buildOp};
135  default:
136  llvm_unreachable("CmpOp must be ICmp or FCmp");
137  }
138 }
139 
140 OpDescriptor llvm::fuzzerop::splitBlockDescriptor(unsigned Weight) {
141  auto buildSplitBlock = [](ArrayRef<Value *> Srcs, Instruction *Inst) {
142  BasicBlock *Block = Inst->getParent();
143  BasicBlock *Next = Block->splitBasicBlock(Inst, "BB");
144 
145  // If it was an exception handling block, we are done.
146  if (Block->isEHPad())
147  return nullptr;
148 
149  // Loop back on this block by replacing the unconditional forward branch
150  // with a conditional with a backedge.
151  if (Block != &Block->getParent()->getEntryBlock()) {
152  BranchInst::Create(Block, Next, Srcs[0], Block->getTerminator());
153  Block->getTerminator()->eraseFromParent();
154 
155  // We need values for each phi in the block. Since there isn't a good way
156  // to do a variable number of input values currently, we just fill them
157  // with undef.
158  for (PHINode &PHI : Block->phis())
159  PHI.addIncoming(UndefValue::get(PHI.getType()), Block);
160  }
161  return nullptr;
162  };
163  SourcePred isInt1Ty{[](ArrayRef<Value *>, const Value *V) {
164  return V->getType()->isIntegerTy(1);
165  },
166  None};
167  return {Weight, {isInt1Ty}, buildSplitBlock};
168 }
169 
170 OpDescriptor llvm::fuzzerop::gepDescriptor(unsigned Weight) {
171  auto buildGEP = [](ArrayRef<Value *> Srcs, Instruction *Inst) {
172  Type *Ty = cast<PointerType>(Srcs[0]->getType())->getElementType();
173  auto Indices = makeArrayRef(Srcs).drop_front(1);
174  return GetElementPtrInst::Create(Ty, Srcs[0], Indices, "G", Inst);
175  };
176  // TODO: Handle aggregates and vectors
177  // TODO: Support multiple indices.
178  // TODO: Try to avoid meaningless accesses.
179  return {Weight, {sizedPtrType(), anyIntType()}, buildGEP};
180 }
181 
182 static uint64_t getAggregateNumElements(Type *T) {
183  assert(T->isAggregateType() && "Not a struct or array");
184  if (isa<StructType>(T))
185  return T->getStructNumElements();
186  return T->getArrayNumElements();
187 }
188 
189 static SourcePred validExtractValueIndex() {
190  auto Pred = [](ArrayRef<Value *> Cur, const Value *V) {
191  if (auto *CI = dyn_cast<ConstantInt>(V))
192  if (!CI->uge(getAggregateNumElements(Cur[0]->getType())))
193  return true;
194  return false;
195  };
196  auto Make = [](ArrayRef<Value *> Cur, ArrayRef<Type *> Ts) {
197  std::vector<Constant *> Result;
198  auto *Int32Ty = Type::getInt32Ty(Cur[0]->getContext());
199  uint64_t N = getAggregateNumElements(Cur[0]->getType());
200  // Create indices at the start, end, and middle, but avoid dups.
201  Result.push_back(ConstantInt::get(Int32Ty, 0));
202  if (N > 1)
203  Result.push_back(ConstantInt::get(Int32Ty, N - 1));
204  if (N > 2)
205  Result.push_back(ConstantInt::get(Int32Ty, N / 2));
206  return Result;
207  };
208  return {Pred, Make};
209 }
210 
211 OpDescriptor llvm::fuzzerop::extractValueDescriptor(unsigned Weight) {
212  auto buildExtract = [](ArrayRef<Value *> Srcs, Instruction *Inst) {
213  // TODO: It's pretty inefficient to shuffle this all through constants.
214  unsigned Idx = cast<ConstantInt>(Srcs[1])->getZExtValue();
215  return ExtractValueInst::Create(Srcs[0], {Idx}, "E", Inst);
216  };
217  // TODO: Should we handle multiple indices?
218  return {Weight, {anyAggregateType(), validExtractValueIndex()}, buildExtract};
219 }
220 
221 static SourcePred matchScalarInAggregate() {
222  auto Pred = [](ArrayRef<Value *> Cur, const Value *V) {
223  if (auto *ArrayT = dyn_cast<ArrayType>(Cur[0]->getType()))
224  return V->getType() == ArrayT->getElementType();
225 
226  auto *STy = cast<StructType>(Cur[0]->getType());
227  for (int I = 0, E = STy->getNumElements(); I < E; ++I)
228  if (STy->getTypeAtIndex(I) == V->getType())
229  return true;
230  return false;
231  };
232  auto Make = [](ArrayRef<Value *> Cur, ArrayRef<Type *>) {
233  if (auto *ArrayT = dyn_cast<ArrayType>(Cur[0]->getType()))
234  return makeConstantsWithType(ArrayT->getElementType());
235 
236  std::vector<Constant *> Result;
237  auto *STy = cast<StructType>(Cur[0]->getType());
238  for (int I = 0, E = STy->getNumElements(); I < E; ++I)
239  makeConstantsWithType(STy->getTypeAtIndex(I), Result);
240  return Result;
241  };
242  return {Pred, Make};
243 }
244 
245 static SourcePred validInsertValueIndex() {
246  auto Pred = [](ArrayRef<Value *> Cur, const Value *V) {
247  if (auto *CI = dyn_cast<ConstantInt>(V))
248  if (CI->getBitWidth() == 32) {
249  Type *Indexed = ExtractValueInst::getIndexedType(Cur[0]->getType(),
250  CI->getZExtValue());
251  return Indexed == Cur[1]->getType();
252  }
253  return false;
254  };
255  auto Make = [](ArrayRef<Value *> Cur, ArrayRef<Type *> Ts) {
256  std::vector<Constant *> Result;
257  auto *Int32Ty = Type::getInt32Ty(Cur[0]->getContext());
258  auto *BaseTy = Cur[0]->getType();
259  int I = 0;
260  while (Type *Indexed = ExtractValueInst::getIndexedType(BaseTy, I)) {
261  if (Indexed == Cur[1]->getType())
262  Result.push_back(ConstantInt::get(Int32Ty, I));
263  ++I;
264  }
265  return Result;
266  };
267  return {Pred, Make};
268 }
269 
270 OpDescriptor llvm::fuzzerop::insertValueDescriptor(unsigned Weight) {
271  auto buildInsert = [](ArrayRef<Value *> Srcs, Instruction *Inst) {
272  // TODO: It's pretty inefficient to shuffle this all through constants.
273  unsigned Idx = cast<ConstantInt>(Srcs[2])->getZExtValue();
274  return InsertValueInst::Create(Srcs[0], Srcs[1], {Idx}, "I", Inst);
275  };
276  return {
277  Weight,
278  {anyAggregateType(), matchScalarInAggregate(), validInsertValueIndex()},
279  buildInsert};
280 }
281 
282 OpDescriptor llvm::fuzzerop::extractElementDescriptor(unsigned Weight) {
283  auto buildExtract = [](ArrayRef<Value *> Srcs, Instruction *Inst) {
284  return ExtractElementInst::Create(Srcs[0], Srcs[1], "E", Inst);
285  };
286  // TODO: Try to avoid undefined accesses.
287  return {Weight, {anyVectorType(), anyIntType()}, buildExtract};
288 }
289 
290 OpDescriptor llvm::fuzzerop::insertElementDescriptor(unsigned Weight) {
291  auto buildInsert = [](ArrayRef<Value *> Srcs, Instruction *Inst) {
292  return InsertElementInst::Create(Srcs[0], Srcs[1], Srcs[2], "I", Inst);
293  };
294  // TODO: Try to avoid undefined accesses.
295  return {Weight,
296  {anyVectorType(), matchScalarOfFirstType(), anyIntType()},
297  buildInsert};
298 }
299 
300 static SourcePred validShuffleVectorIndex() {
301  auto Pred = [](ArrayRef<Value *> Cur, const Value *V) {
302  return ShuffleVectorInst::isValidOperands(Cur[0], Cur[1], V);
303  };
304  auto Make = [](ArrayRef<Value *> Cur, ArrayRef<Type *> Ts) {
305  auto *FirstTy = cast<FixedVectorType>(Cur[0]->getType());
306  auto *Int32Ty = Type::getInt32Ty(Cur[0]->getContext());
307  // TODO: It's straighforward to make up reasonable values, but listing them
308  // exhaustively would be insane. Come up with a couple of sensible ones.
309  return std::vector<Constant *>{UndefValue::get(
310  FixedVectorType::get(Int32Ty, FirstTy->getNumElements()))};
311  };
312  return {Pred, Make};
313 }
314 
315 OpDescriptor llvm::fuzzerop::shuffleVectorDescriptor(unsigned Weight) {
316  auto buildShuffle = [](ArrayRef<Value *> Srcs, Instruction *Inst) {
317  return new ShuffleVectorInst(Srcs[0], Srcs[1], Srcs[2], "S", Inst);
318  };
319  return {Weight,
320  {anyVectorType(), matchFirstType(), validShuffleVectorIndex()},
321  buildShuffle};
322 }
llvm::CmpInst::FCMP_ULE
@ FCMP_ULE
1 1 0 1 True if unordered, less than, or equal
Definition: InstrTypes.h:737
Int32Ty
IntegerType * Int32Ty
Definition: NVVMIntrRange.cpp:67
validShuffleVectorIndex
static SourcePred validShuffleVectorIndex()
Definition: Operations.cpp:300
llvm
Definition: AllocatorList.h:23
llvm::CmpInst::ICMP_EQ
@ ICMP_EQ
equal
Definition: InstrTypes.h:743
llvm::CmpInst::Predicate
Predicate
This enumeration lists the possible predicates for CmpInst subclasses.
Definition: InstrTypes.h:722
validExtractValueIndex
static SourcePred validExtractValueIndex()
Definition: Operations.cpp:189
llvm::CmpInst::FCMP_ONE
@ FCMP_ONE
0 1 1 0 True if ordered and operands are unequal
Definition: InstrTypes.h:730
llvm::InsertValueInst::Create
static InsertValueInst * Create(Value *Agg, Value *Val, ArrayRef< unsigned > Idxs, const Twine &NameStr="", Instruction *InsertBefore=nullptr)
Definition: Instructions.h:2469
llvm::CmpInst::ICMP_NE
@ ICMP_NE
not equal
Definition: InstrTypes.h:744
llvm::fuzzerop::makeConstantsWithType
void makeConstantsWithType(Type *T, std::vector< Constant * > &Cs)
Definition: OpDescriptor.cpp:15
llvm::ExtractValueInst::getIndexedType
static Type * getIndexedType(Type *Agg, ArrayRef< unsigned > Idxs)
Returns the type of the element that would be extracted with an extractvalue instruction with the spe...
Definition: Instructions.cpp:2373
llvm::fuzzerop::gepDescriptor
OpDescriptor gepDescriptor(unsigned Weight)
Definition: Operations.cpp:170
llvm::InsertElementInst::Create
static InsertElementInst * Create(Value *Vec, Value *NewElt, Value *Idx, const Twine &NameStr="", Instruction *InsertBefore=nullptr)
Definition: Instructions.h:1928
llvm::CmpInst::ICMP_SGT
@ ICMP_SGT
signed greater than
Definition: InstrTypes.h:749
llvm::ExtractElementInst::Create
static ExtractElementInst * Create(Value *Vec, Value *Idx, const Twine &NameStr="", Instruction *InsertBefore=nullptr)
Definition: Instructions.h:1863
llvm::Type
The instances of the Type class are immutable: once they are created, they are never changed.
Definition: Type.h:46
T
#define T
Definition: Mips16ISelLowering.cpp:341
llvm::ShuffleVectorInst::isValidOperands
static bool isValidOperands(const Value *V1, const Value *V2, const Value *Mask)
Return true if a shufflevector instruction can be formed with the specified operands.
Definition: Instructions.cpp:2005
llvm::CmpInst::ICMP_SLE
@ ICMP_SLE
signed less or equal
Definition: InstrTypes.h:752
llvm::fuzzerop::anyFloatType
static SourcePred anyFloatType()
Definition: OpDescriptor.h:121
llvm::fuzzerop::splitBlockDescriptor
OpDescriptor splitBlockDescriptor(unsigned Weight)
Definition: Operations.cpp:140
llvm::CmpInst::FCMP_OGT
@ FCMP_OGT
0 0 1 0 True if ordered and greater than
Definition: InstrTypes.h:726
llvm::fuzzerop::matchFirstType
static SourcePred matchFirstType()
Match values that have the same type as the first source.
Definition: OpDescriptor.h:194
llvm::Type::getInt32Ty
static IntegerType * getInt32Ty(LLVMContext &C)
Definition: Type.cpp:204
llvm::BasicBlock
LLVM Basic Block Representation.
Definition: BasicBlock.h:58
llvm::fuzzerop::binOpDescriptor
OpDescriptor binOpDescriptor(unsigned Weight, Instruction::BinaryOps Op)
Descriptors for individual operations.
Definition: Operations.cpp:91
llvm::CmpInst::FCMP_ULT
@ FCMP_ULT
1 1 0 0 True if unordered or less than
Definition: InstrTypes.h:736
llvm::Intrinsic::getType
FunctionType * getType(LLVMContext &Context, ID id, ArrayRef< Type * > Tys=None)
Return the function type for an intrinsic.
Definition: Function.cpp:1251
llvm::fuzzerop::anyIntType
static SourcePred anyIntType()
Definition: OpDescriptor.h:113
Constants.h
llvm::describeFuzzerPointerOps
void describeFuzzerPointerOps(std::vector< fuzzerop::OpDescriptor > &Ops)
Definition: Operations.cpp:75
llvm::fuzzerop::sizedPtrType
static SourcePred sizedPtrType()
Definition: OpDescriptor.h:143
E
static GCRegistry::Add< CoreCLRGC > E("coreclr", "CoreCLR-compatible GC")
llvm::CmpInst::ICMP_ULE
@ ICMP_ULE
unsigned less or equal
Definition: InstrTypes.h:748
llvm::CmpInst::FCMP_UGE
@ FCMP_UGE
1 0 1 1 True if unordered, greater than, or equal
Definition: InstrTypes.h:735
llvm::Instruction::OtherOps
OtherOps
Definition: Instruction.h:796
llvm::fuzzerop::OpDescriptor
A description of some operation we can build while fuzzing IR.
Definition: OpDescriptor.h:89
llvm::CmpInst::FCMP_UNO
@ FCMP_UNO
1 0 0 0 True if unordered: isnan(X) | isnan(Y)
Definition: InstrTypes.h:732
llvm::Instruction
Definition: Instruction.h:45
llvm::UndefValue::get
static UndefValue * get(Type *T)
Static factory methods - Return an 'undef' object of the specified type.
Definition: Constants.cpp:1770
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:885
llvm::CmpInst::FCMP_OEQ
@ FCMP_OEQ
0 0 0 1 True if ordered and equal
Definition: InstrTypes.h:725
llvm::CmpInst::FCMP_OLT
@ FCMP_OLT
0 1 0 0 True if ordered and less than
Definition: InstrTypes.h:728
llvm::FixedVectorType::get
static FixedVectorType * get(Type *ElementType, unsigned NumElts)
Definition: Type.cpp:650
llvm::describeFuzzerIntOps
void describeFuzzerIntOps(std::vector< fuzzerop::OpDescriptor > &Ops)
Getters for the default sets of operations, per general category.
Definition: Operations.cpp:18
getAggregateNumElements
static uint64_t getAggregateNumElements(Type *T)
Definition: Operations.cpp:182
llvm::None
const NoneType None
Definition: None.h:23
matchScalarInAggregate
static SourcePred matchScalarInAggregate()
Definition: Operations.cpp:221
llvm::CmpInst::FCMP_FALSE
@ FCMP_FALSE
0 0 0 0 Always false (always folded)
Definition: InstrTypes.h:724
buildGEP
static Value * buildGEP(IRBuilderTy &IRB, Value *BasePtr, SmallVectorImpl< Value * > &Indices, const Twine &NamePrefix)
Build a GEP out of a base pointer and indices.
Definition: SROA.cpp:1400
BasicBlock.h
llvm::fuzzerop::extractValueDescriptor
OpDescriptor extractValueDescriptor(unsigned Weight)
Definition: Operations.cpp:211
llvm::ExtractValueInst::Create
static ExtractValueInst * Create(Value *Agg, ArrayRef< unsigned > Idxs, const Twine &NameStr="", Instruction *InsertBefore=nullptr)
Definition: Instructions.h:2344
llvm::BranchInst::Create
static BranchInst * Create(BasicBlock *IfTrue, Instruction *InsertBefore=nullptr)
Definition: Instructions.h:3061
I
#define I(x, y, z)
Definition: MD5.cpp:59
assert
assert(ImpDefSCC.getReg()==AMDGPU::SCC &&ImpDefSCC.isDef())
llvm::fuzzerop::cmpOpDescriptor
OpDescriptor cmpOpDescriptor(unsigned Weight, Instruction::OtherOps CmpOp, CmpInst::Predicate Pred)
Definition: Operations.cpp:123
llvm::CmpInst::FCMP_OGE
@ FCMP_OGE
0 0 1 1 True if ordered and greater than or equal
Definition: InstrTypes.h:727
llvm::CmpInst::ICMP_UGE
@ ICMP_UGE
unsigned greater or equal
Definition: InstrTypes.h:746
llvm::fuzzerop::insertElementDescriptor
OpDescriptor insertElementDescriptor(unsigned Weight)
Definition: Operations.cpp:290
llvm::CmpInst::ICMP_SLT
@ ICMP_SLT
signed less than
Definition: InstrTypes.h:751
llvm::GetElementPtrInst::Create
static GetElementPtrInst * Create(Type *PointeeType, Value *Ptr, ArrayRef< Value * > IdxList, const Twine &NameStr="", Instruction *InsertBefore=nullptr)
Definition: Instructions.h:931
Indexed
So we should use XX3Form_Rcr to implement instrinsic Convert DP outs ins xscvdpsp No builtin are required Round &Convert QP DP(dword[1] is set to zero) No builtin are required Round to Quad Precision because you need to assign rounding mode in instruction Provide builtin(set f128:$vT,(int_ppc_vsx_xsrqpi f128:$vB))(set f128 yields< n x< ty > >< result > yields< ty >< result > No builtin are required Load Store load store see def memrix16 in PPCInstrInfo td Load Store Vector Indexed
Definition: README_P9.txt:505
llvm::ArrayRef
ArrayRef - Represent a constant reference to an array (0 or more elements consecutively in memory),...
Definition: APInt.h:33
llvm::CmpInst::ICMP_ULT
@ ICMP_ULT
unsigned less than
Definition: InstrTypes.h:747
llvm_unreachable
#define llvm_unreachable(msg)
Marks that the current location is not supposed to be reachable.
Definition: ErrorHandling.h:136
Operations.h
llvm::describeFuzzerControlFlowOps
void describeFuzzerControlFlowOps(std::vector< fuzzerop::OpDescriptor > &Ops)
Definition: Operations.cpp:70
llvm::CmpInst::FCMP_UGT
@ FCMP_UGT
1 0 1 0 True if unordered or greater than
Definition: InstrTypes.h:734
llvm::fuzzerop::SourcePred
A matcher/generator for finding suitable values for the next source in an operation's partially compl...
Definition: OpDescriptor.h:43
llvm::AMDGPU::SendMsg::Op
Op
Definition: SIDefines.h:314
Function.h
llvm::CmpInst::ICMP_SGE
@ ICMP_SGE
signed greater or equal
Definition: InstrTypes.h:750
llvm::MCID::Add
@ Add
Definition: MCInstrDesc.h:184
llvm::CmpInst::Create
static CmpInst * Create(OtherOps Op, Predicate predicate, Value *S1, Value *S2, const Twine &Name="", Instruction *InsertBefore=nullptr)
Construct a compare instruction, given the opcode, the predicate and the two operands.
Definition: Instructions.cpp:3616
llvm::makeArrayRef
ArrayRef< T > makeArrayRef(const T &OneElt)
Construct an ArrayRef from a single element.
Definition: ArrayRef.h:474
llvm::Instruction::BinaryOps
BinaryOps
Definition: Instruction.h:768
llvm::ShuffleVectorInst
This instruction constructs a fixed permutation of two input vectors.
Definition: Instructions.h:1986
llvm::describeFuzzerVectorOps
void describeFuzzerVectorOps(std::vector< fuzzerop::OpDescriptor > &Ops)
Definition: Operations.cpp:85
Instructions.h
llvm::CmpInst::ICMP_UGT
@ ICMP_UGT
unsigned greater than
Definition: InstrTypes.h:745
llvm::fuzzerop::shuffleVectorDescriptor
OpDescriptor shuffleVectorDescriptor(unsigned Weight)
Definition: Operations.cpp:315
llvm::CmpInst::FCMP_UNE
@ FCMP_UNE
1 1 1 0 True if unordered or not equal
Definition: InstrTypes.h:738
N
#define N
llvm::PHINode
Definition: Instructions.h:2572
llvm::CmpInst::FCMP_OLE
@ FCMP_OLE
0 1 0 1 True if ordered and less than or equal
Definition: InstrTypes.h:729
llvm::describeFuzzerFloatOps
void describeFuzzerFloatOps(std::vector< fuzzerop::OpDescriptor > &Ops)
Definition: Operations.cpp:45
llvm::fuzzerop::extractElementDescriptor
OpDescriptor extractElementDescriptor(unsigned Weight)
Definition: Operations.cpp:282
llvm::fuzzerop::anyAggregateType
static SourcePred anyAggregateType()
Definition: OpDescriptor.h:164
validInsertValueIndex
static SourcePred validInsertValueIndex()
Definition: Operations.cpp:245
llvm::BinaryOperator::Create
static BinaryOperator * Create(BinaryOps Op, Value *S1, Value *S2, const Twine &Name=Twine(), Instruction *InsertBefore=nullptr)
Construct a binary instruction, given the opcode and the two operands.
Definition: Instructions.cpp:2549
llvm::CmpInst::FCMP_TRUE
@ FCMP_TRUE
1 1 1 1 Always true (always folded)
Definition: InstrTypes.h:739
llvm::describeFuzzerAggregateOps
void describeFuzzerAggregateOps(std::vector< fuzzerop::OpDescriptor > &Ops)
Definition: Operations.cpp:79
llvm::Value
LLVM Value Representation.
Definition: Value.h:75
llvm::fuzzerop::anyVectorType
static SourcePred anyVectorType()
Definition: OpDescriptor.h:182
llvm::fuzzerop::matchScalarOfFirstType
static SourcePred matchScalarOfFirstType()
Match values that have the first source's scalar type.
Definition: OpDescriptor.h:207
llvm::CmpInst::FCMP_ORD
@ FCMP_ORD
0 1 1 1 True if ordered (no nans)
Definition: InstrTypes.h:731
llvm::CmpInst::FCMP_UEQ
@ FCMP_UEQ
1 0 0 1 True if unordered or equal
Definition: InstrTypes.h:733
llvm::fuzzerop::insertValueDescriptor
OpDescriptor insertValueDescriptor(unsigned Weight)
Definition: Operations.cpp:270
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