SROA: Avoid struct and array types early to avoid creating an overly large integer type.
Fixes PR14465.
Differential Revision: http://llvm-reviews.chandlerc.com/D148
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169084 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Transforms/Scalar/SROA.cpp b/lib/Transforms/Scalar/SROA.cpp
index e850e61..68d5d3f 100644
--- a/lib/Transforms/Scalar/SROA.cpp
+++ b/lib/Transforms/Scalar/SROA.cpp
@@ -2164,6 +2164,9 @@
AllocaPartitioning::const_use_iterator I,
AllocaPartitioning::const_use_iterator E) {
uint64_t SizeInBits = TD.getTypeSizeInBits(AllocaTy);
+ // Don't create integer types larger than the maximum bitwidth.
+ if (SizeInBits > IntegerType::MAX_INT_BITS)
+ return false;
// Don't try to handle allocas with bit-padding.
if (SizeInBits != TD.getTypeStoreSizeInBits(AllocaTy))