Convert assertion in memset checking to a runtime check (because real code may provide a deviant definition of memset).
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@130368 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/SemaChecking.cpp b/lib/Sema/SemaChecking.cpp
index 7ee0eac..f616a10 100644
--- a/lib/Sema/SemaChecking.cpp
+++ b/lib/Sema/SemaChecking.cpp
@@ -1804,7 +1804,12 @@
///
/// \param Call The call expression to diagnose.
void Sema::CheckMemsetArguments(const CallExpr *Call) {
- assert(Call->getNumArgs() == 3 && "Unexpected number of arguments to memset");
+ // It is possible to have a non-standard definition of memset. Validate
+ // we have the proper number of arguments, and if not, abort further
+ // checking.
+ if (Call->getNumArgs() != 3)
+ return;
+
const Expr *Dest = Call->getArg(0)->IgnoreParenImpCasts();
QualType DestTy = Dest->getType();