================
@@ -0,0 +1,79 @@
+// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -std=c++20 -fclangir
-mconstructor-aliases -emit-cir %s -o %t.cir
+// RUN: FileCheck --check-prefix=CIR --input-file=%t.cir %s
+// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -std=c++20 -fclangir
-mconstructor-aliases -emit-llvm %s -o %t-cir.ll
+// RUN: FileCheck --check-prefix=LLVM,LLVMCIR --input-file=%t-cir.ll %s
+// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -std=c++20
-mconstructor-aliases -emit-llvm %s -o %t.ll
+// RUN: FileCheck --check-prefix=LLVM,OGCG --input-file=%t.ll %s
+
+// Minimal in-source declarations of the standard-library bits needed for a
+// destroying operator delete so this test does not depend on a system header.
+namespace std {
+struct destroying_delete_t {
+ explicit destroying_delete_t() = default;
+};
+inline constexpr destroying_delete_t destroying_delete{};
+} // namespace std
+
+// The deleting destructor calls the destroying operator delete and does not
+// call the complete destructor. The operator delete destroys the object.
+struct A {
+ virtual ~A();
+ void operator delete(A *, std::destroying_delete_t);
+};
+
+A::~A() {}
+
+void A::operator delete(A *, std::destroying_delete_t) {}
+
+// CIR-LABEL: cir.func {{.*}} @_ZN1AD0Ev
+// CIR: %[[THIS_ADDR:.*]] = cir.alloca "this"
+// CIR: %[[TAG:.*]] = cir.alloca "destroying.delete.tag"
+// CIR: cir.store %[[ARG:.*]], %[[THIS_ADDR]]
+// CIR: %[[THIS:.*]] = cir.load %[[THIS_ADDR]]
+// CIR: cir.load{{.*}} %[[TAG]]
+// CIR: cir.call @_ZN1AdlEPS_St19destroying_delete_t(%[[THIS]])
+// CIR-NOT: cir.call @_ZN1AD{{[12]}}Ev
+// CIR: cir.return
+
+// LLVM-LABEL: define {{.*}} void @_ZN1AD0Ev(
+// LLVM: %[[THIS_ADDR:.*]] = alloca ptr
+// LLVMCIR: alloca %"struct.std::destroying_delete_t"
+// OGCG-NOT: alloca %"struct.std::destroying_delete_t"
----------------
andykaylor wrote:
I don't have a good reason for that. I saw it and meant to clean it up, but
then I forgot.
https://github.com/llvm/llvm-project/pull/229606
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