c: When checking on validity of sizeof passed as size of
argument to be memset, check for its type to be complete
before calling Context.getTypeSize(PointeeTy) to prevent
crash. // rdar://13081751.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173872 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/SemaChecking.cpp b/lib/Sema/SemaChecking.cpp
index 9af16f3..465b01c 100644
--- a/lib/Sema/SemaChecking.cpp
+++ b/lib/Sema/SemaChecking.cpp
@@ -3253,7 +3253,8 @@
if (const UnaryOperator *UnaryOp = dyn_cast<UnaryOperator>(Dest))
if (UnaryOp->getOpcode() == UO_AddrOf)
ActionIdx = 1; // If its an address-of operator, just remove it.
- if (Context.getTypeSize(PointeeTy) == Context.getCharWidth())
+ if (!PointeeTy->isIncompleteType() &&
+ (Context.getTypeSize(PointeeTy) == Context.getCharWidth()))
ActionIdx = 2; // If the pointee's size is sizeof(char),
// suggest an explicit length.