Esnure that if we have a volatile structure as the destination, that
we actually have a destination.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@72429 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CGExprAgg.cpp b/lib/CodeGen/CGExprAgg.cpp
index 3da7da8..c558d13 100644
--- a/lib/CodeGen/CGExprAgg.cpp
+++ b/lib/CodeGen/CGExprAgg.cpp
@@ -465,13 +465,16 @@
// Entry Points into this File
//===----------------------------------------------------------------------===//
-/// EmitAggExpr - Emit the computation of the specified expression of
-/// aggregate type. The result is computed into DestPtr. Note that if
-/// DestPtr is null, the value of the aggregate expression is not needed.
+/// EmitAggExpr - Emit the computation of the specified expression of aggregate
+/// type. The result is computed into DestPtr. Note that if DestPtr is null,
+/// the value of the aggregate expression is not needed. If VolatileDest is
+/// true, DestPtr cannot be 0.
void CodeGenFunction::EmitAggExpr(const Expr *E, llvm::Value *DestPtr,
bool VolatileDest) {
assert(E && hasAggregateLLVMType(E->getType()) &&
"Invalid aggregate expression to emit");
+ assert ((DestPtr != 0 || VolatileDest == false)
+ && "volatile aggregate can't be 0");
AggExprEmitter(*this, DestPtr, VolatileDest).Visit(const_cast<Expr*>(E));
}