do not generated GEPs into vectors where they don't already exist.
We should treat vectors as atomic types, not like arrays.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62046 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Transforms/Scalar/InstructionCombining.cpp b/lib/Transforms/Scalar/InstructionCombining.cpp
index fd15f2e..b6604a9 100644
--- a/lib/Transforms/Scalar/InstructionCombining.cpp
+++ b/lib/Transforms/Scalar/InstructionCombining.cpp
@@ -7739,13 +7739,12 @@
Offset -= SL->getElementOffset(Elt);
Ty = STy->getElementType(Elt);
- } else if (isa<ArrayType>(Ty) || isa<VectorType>(Ty)) {
- const SequentialType *STy = cast<SequentialType>(Ty);
- uint64_t EltSize = TD->getABITypeSize(STy->getElementType());
+ } else if (const ArrayType *AT = dyn_cast<ArrayType>(Ty)) {
+ uint64_t EltSize = TD->getABITypeSize(AT->getElementType());
assert(EltSize && "Cannot index into a zero-sized array");
NewIndices.push_back(ConstantInt::get(IntPtrTy,Offset/EltSize));
Offset %= EltSize;
- Ty = STy->getElementType();
+ Ty = AT->getElementType();
} else {
// Otherwise, we can't index into the middle of this atomic type, bail.
return false;