Simplify atomic load/store IRGen.
Also fixes a couple minor bugs along the way; see testcases.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@186049 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CGExpr.cpp b/lib/CodeGen/CGExpr.cpp
index 419075f..b283174 100644
--- a/lib/CodeGen/CGExpr.cpp
+++ b/lib/CodeGen/CGExpr.cpp
@@ -2717,11 +2717,10 @@
case CK_BuiltinFnToFnPtr:
llvm_unreachable("builtin functions are handled elsewhere");
- // These two casts are currently treated as no-ops, although they could
- // potentially be real operations depending on the target's ABI.
+ // These are never l-values; just use the aggregate emission code.
case CK_NonAtomicToAtomic:
case CK_AtomicToNonAtomic:
- return EmitLValue(E->getSubExpr());
+ return EmitAggExprToLValue(E);
case CK_Dynamic: {
LValue LV = EmitLValue(E->getSubExpr());