Implement AST, semantics, and CodeGen for C++ pseudo-destructor
expressions, e.g.,
p->~T()
when p is a pointer to a scalar type.
We don't currently diagnose errors when pseudo-destructor expressions
are used in any way other than by forming a call.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@81009 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CGExpr.cpp b/lib/CodeGen/CGExpr.cpp
index 5c8dfa4..4a8253d 100644
--- a/lib/CodeGen/CGExpr.cpp
+++ b/lib/CodeGen/CGExpr.cpp
@@ -1234,6 +1234,16 @@
if (const CXXMethodDecl *MD = dyn_cast_or_null<CXXMethodDecl>(TargetDecl))
return EmitCXXOperatorMemberCallExpr(CE, MD);
+ if (isa<CXXPseudoDestructorExpr>(E->getCallee())) {
+ // C++ [expr.pseudo]p1:
+ // The result shall only be used as the operand for the function call
+ // operator (), and the result of such a call has type void. The only
+ // effect is the evaluation of the postfix-expression before the dot or
+ // arrow.
+ EmitScalarExpr(E->getCallee());
+ return RValue::get(0);
+ }
+
llvm::Value *Callee = EmitScalarExpr(E->getCallee());
return EmitCall(Callee, E->getCallee()->getType(),
E->arg_begin(), E->arg_end(), TargetDecl);