diff options
| -rw-r--r-- | tools/llvm-stress/llvm-stress.cpp | 21 |
1 files changed, 12 insertions, 9 deletions
diff --git a/tools/llvm-stress/llvm-stress.cpp b/tools/llvm-stress/llvm-stress.cpp index d284ea5e42c..fb05a589e8b 100644 --- a/tools/llvm-stress/llvm-stress.cpp +++ b/tools/llvm-stress/llvm-stress.cpp @@ -412,7 +412,7 @@ struct ExtractElementModifier: public Modifier { Value *Val0 = getRandomVectorValue(); Value *V = ExtractElementInst::Create(Val0, ConstantInt::get(Type::getInt32Ty(BB->getContext()), - Ran->Rand() % cast<VectorType>(Val0->getType())->getNumElements()), + Ran->Rand() % cast<VectorType>(Val0->getType())->getNumElements()), "E", BB->getTerminator()); return PT->push_back(V); } @@ -476,7 +476,7 @@ struct CastModifier: public Modifier { DestTy = pickVectorType(VecTy->getNumElements()); } - // no need to casr. + // no need to cast. if (VTy == DestTy) return; // Pointers: @@ -487,9 +487,11 @@ struct CastModifier: public Modifier { new BitCastInst(V, DestTy, "PC", BB->getTerminator())); } + unsigned VSize = VTy->getScalarType()->getPrimitiveSizeInBits(); + unsigned DestSize = DestTy->getScalarType()->getPrimitiveSizeInBits(); + // Generate lots of bitcasts. - if ((Ran->Rand() & 1) && - VTy->getPrimitiveSizeInBits() == DestTy->getPrimitiveSizeInBits()) { + if ((Ran->Rand() & 1) && VSize == DestSize) { return PT->push_back( new BitCastInst(V, DestTy, "BC", BB->getTerminator())); } @@ -497,11 +499,11 @@ struct CastModifier: public Modifier { // Both types are integers: if (VTy->getScalarType()->isIntegerTy() && DestTy->getScalarType()->isIntegerTy()) { - if (VTy->getScalarType()->getPrimitiveSizeInBits() > - DestTy->getScalarType()->getPrimitiveSizeInBits()) { + if (VSize > DestSize) { return PT->push_back( new TruncInst(V, DestTy, "Tr", BB->getTerminator())); } else { + assert(VSize < DestSize && "Different int types with the same size?"); if (Ran->Rand() & 1) return PT->push_back( new ZExtInst(V, DestTy, "ZE", BB->getTerminator())); @@ -531,14 +533,15 @@ struct CastModifier: public Modifier { // Both floats. if (VTy->getScalarType()->isFloatingPointTy() && DestTy->getScalarType()->isFloatingPointTy()) { - if (VTy->getScalarType()->getPrimitiveSizeInBits() > - DestTy->getScalarType()->getPrimitiveSizeInBits()) { + if (VSize > DestSize) { return PT->push_back( new FPTruncInst(V, DestTy, "Tr", BB->getTerminator())); - } else { + } else if (VSize < DestSize) { return PT->push_back( new FPExtInst(V, DestTy, "ZE", BB->getTerminator())); } + // If VSize == DestSize, then the two types must be fp128 and ppc_fp128, + // for which there is no defined conversion. So do nothing. } } |