Use right address space size in InstCombineCompares
The test's output doesn't change, but this ensures
this is actually hit with a different address space.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191701 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Transforms/InstCombine/InstCombineCompares.cpp b/lib/Transforms/InstCombine/InstCombineCompares.cpp
index f691350..e624572 100644
--- a/lib/Transforms/InstCombine/InstCombineCompares.cpp
+++ b/lib/Transforms/InstCombine/InstCombineCompares.cpp
@@ -394,9 +394,12 @@
// If the index is larger than the pointer size of the target, truncate the
// index down like the GEP would do implicitly. We don't have to do this for
// an inbounds GEP because the index can't be out of range.
- if (!GEP->isInBounds() &&
- Idx->getType()->getPrimitiveSizeInBits() > TD->getPointerSizeInBits())
- Idx = Builder->CreateTrunc(Idx, TD->getIntPtrType(Idx->getContext()));
+ if (!GEP->isInBounds()) {
+ Type *IntPtrTy = TD->getIntPtrType(GEP->getType());
+ unsigned PtrSize = IntPtrTy->getIntegerBitWidth();
+ if (Idx->getType()->getPrimitiveSizeInBits() > PtrSize)
+ Idx = Builder->CreateTrunc(Idx, IntPtrTy);
+ }
// If the comparison is only true for one or two elements, emit direct
// comparisons.