diff options
Diffstat (limited to 'llvm/lib')
| -rw-r--r-- | llvm/lib/FuzzMutate/RandomIRBuilder.cpp | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/llvm/lib/FuzzMutate/RandomIRBuilder.cpp b/llvm/lib/FuzzMutate/RandomIRBuilder.cpp index e3303cf3cac..8fe9d0dc857 100644 --- a/llvm/lib/FuzzMutate/RandomIRBuilder.cpp +++ b/llvm/lib/FuzzMutate/RandomIRBuilder.cpp @@ -140,9 +140,15 @@ Value *RandomIRBuilder::findPointer(BasicBlock &BB, if (isa<TerminatorInst>(Inst)) return false; - if (auto PtrTy = dyn_cast<PointerType>(Inst->getType())) + if (auto PtrTy = dyn_cast<PointerType>(Inst->getType())) { + // We can never generate loads from non first class or non sized types + if (!PtrTy->getElementType()->isSized() || + !PtrTy->getElementType()->isFirstClassType()) + return false; + // TODO: Check if this is horribly expensive. return Pred.matches(Srcs, UndefValue::get(PtrTy->getElementType())); + } return false; }; if (auto RS = makeSampler(Rand, make_filter_range(Insts, IsMatchingPtr))) |
