Do not crash on empty structures

llvm-svn: 9195
2003-10-17 18:03:54 +00:00 · 2003-10-17 18:03:54 +00:00 · 1facf89eaf
parent b9c70bb653
commit 1facf89eaf
1 changed files with 5 additions and 0 deletions
--- a/llvm/lib/Transforms/TransformInternals.cpp
+++ b/llvm/lib/Transforms/TransformInternals.cpp
@ -53,6 +53,11 @@ const Type *getStructOffsetType(const Type *Ty, unsigned &Offset,
  uint64_t ThisOffset;
  const Type *NextType;
  if (const StructType *STy = dyn_cast<StructType>(Ty)) {
+    if (STy->getElementTypes().empty()) {
+      Offset = 0;
+      return STy;
+    }
+
    ThisOffset = Offset;
    NextType = getStructOffsetStep(STy, ThisOffset, Indices, TD);
  } else if (const ArrayType *ATy = dyn_cast<ArrayType>(Ty)) {