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Add support for random constant vectors.

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Patch by Joey Gouly.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151489 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Nadav Rotem 2012-02-26 13:56:18 +00:00
parent 794c16ae85
commit bfb7dfa756
1 changed files with 23 additions and 1 deletions
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24
tools/llvm-stress/llvm-stress.cpp
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@ -110,6 +110,19 @@ protected:
return PT->at(Ran->Rand() % PT->size());
}
Constant *getRandomConstant(Type *Tp) {
if (Tp->isIntegerTy()) {
if (Ran->Rand() & 1)
return ConstantInt::getAllOnesValue(Tp);
return ConstantInt::getNullValue(Tp);
} else if (Tp->isFloatingPointTy()) {
if (Ran->Rand() & 1)
return ConstantFP::getAllOnesValue(Tp);
return ConstantFP::getNullValue(Tp);
}
return UndefValue::get(Tp);
}
/// Return a random value with a known type.
Value *getRandomValue(Type *Tp) {
unsigned index = Ran->Rand();
@ -128,9 +141,18 @@ protected:
if (Ran->Rand() & 1)
return ConstantFP::getAllOnesValue(Tp);
return ConstantFP::getNullValue(Tp);
} else if (Tp->isVectorTy()) {
VectorType *VTp = cast<VectorType>(Tp);
std::vector<Constant*> TempValues;
TempValues.reserve(VTp->getNumElements());
for (unsigned i = 0; i < VTp->getNumElements(); ++i)
TempValues.push_back(getRandomConstant(VTp->getScalarType()));
ArrayRef<Constant*> VectorValue(TempValues);
return ConstantVector::get(VectorValue);
}
// TODO: return values for vector types.
return UndefValue::get(Tp);
}