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-rw-r--r--llvm/lib/IR/ConstantFold.cpp13
1 files changed, 12 insertions, 1 deletions
diff --git a/llvm/lib/IR/ConstantFold.cpp b/llvm/lib/IR/ConstantFold.cpp
index 311b0a76ce8..60dd20e4659 100644
--- a/llvm/lib/IR/ConstantFold.cpp
+++ b/llvm/lib/IR/ConstantFold.cpp
@@ -2062,9 +2062,20 @@ Constant *llvm::ConstantFoldGetElementPtr(Type *PointeeTy, Constant *C,
Type *Ty = GetElementPtrInst::getIndexedType(PointeeTy, Idxs);
assert(Ty && "Invalid indices for GEP!");
+ Type *OrigGEPTy = PointerType::get(Ty, PtrTy->getAddressSpace());
Type *GEPTy = PointerType::get(Ty, PtrTy->getAddressSpace());
if (VectorType *VT = dyn_cast<VectorType>(C->getType()))
- GEPTy = VectorType::get(GEPTy, VT->getNumElements());
+ GEPTy = VectorType::get(OrigGEPTy, VT->getNumElements());
+
+ // The GEP returns a vector of pointers when one of more of
+ // its arguments is a vector.
+ for (unsigned i = 0, e = Idxs.size(); i != e; ++i) {
+ if (auto *VT = dyn_cast<VectorType>(Idxs[i]->getType())) {
+ GEPTy = VectorType::get(OrigGEPTy, VT->getNumElements());
+ break;
+ }
+ }
+
return Constant::getNullValue(GEPTy);
}
}
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