[clang] [CIR] Add Minimal Destructor Definition Support (PR #144719)

[Andy Kaylor via cfe-commits]

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@@ -538,6 +538,104 @@ void CIRGenFunction::emitConstructorBody(FunctionArgList &args) {
   }
 }
 
+/// Emits the body of the current destructor.
+void CIRGenFunction::emitDestructorBody(FunctionArgList &args) {
+  const CXXDestructorDecl *dtor = cast<CXXDestructorDecl>(curGD.getDecl());
+  CXXDtorType dtorType = curGD.getDtorType();
+
+  // For an abstract class, non-base destructors are never used (and can't
+  // be emitted in general, because vbase dtors may not have been validated
+  // by Sema), but the Itanium ABI doesn't make them optional and Clang may
+  // in fact emit references to them from other compilations, so emit them
+  // as functions containing a trap instruction.
+  if (dtorType != Dtor_Base && dtor->getParent()->isAbstract()) {
+    SourceLocation loc =
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andykaylor wrote:

It's probably not possible to write a test that hits this code yet. If that's so, can you make it NYI until we can?

https://github.com/llvm/llvm-project/pull/144719