From 6ca0b32227c21ba4bc66e8f1bdbf767b563567a8 Mon Sep 17 00:00:00 2001
From: Fariborz Jahanian <fjahanian@apple.com>
Date: Mon, 3 Aug 2009 20:20:07 +0000
Subject: [PATCH] ir-gen for destructor calls.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@77991 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/CodeGen/CGDecl.cpp               | 12 ++++++++++
 test/CodeGenCXX/destructor-calls.cpp | 36 ++++++++++++++++++++++++++++
 2 files changed, 48 insertions(+)
 create mode 100644 test/CodeGenCXX/destructor-calls.cpp

diff --git a/lib/CodeGen/CGDecl.cpp b/lib/CodeGen/CGDecl.cpp
index 9fd571b816..347a0af696 100644
--- a/lib/CodeGen/CGDecl.cpp
+++ b/lib/CodeGen/CGDecl.cpp
@@ -432,6 +432,18 @@ void CodeGenFunction::EmitLocalBlockVarDecl(const VarDecl &D) {
     }
   }
 
+  // Handle CXX destruction of variables.
+  // FIXME - destruction of arrays NYI.
+  if (const RecordType *RT = Ty->getAs<RecordType>())
+    if (CXXRecordDecl *ClassDecl = dyn_cast<CXXRecordDecl>(RT->getDecl())) {
+      if (!ClassDecl->hasTrivialDestructor()) {
+        const CXXDestructorDecl *D = ClassDecl->getDestructor(getContext());
+        assert(D && "EmitLocalBlockVarDecl - destructor is nul");
+        CleanupScope scope(*this);
+        EmitCXXDestructorCall(D, Dtor_Complete, DeclPtr);
+      }
+  }
+    
   // Handle the cleanup attribute
   if (const CleanupAttr *CA = D.getAttr<CleanupAttr>()) {
     const FunctionDecl *FD = CA->getFunctionDecl();
diff --git a/test/CodeGenCXX/destructor-calls.cpp b/test/CodeGenCXX/destructor-calls.cpp
new file mode 100644
index 0000000000..7b9225590a
--- /dev/null
+++ b/test/CodeGenCXX/destructor-calls.cpp
@@ -0,0 +1,36 @@
+// RUN: clang-cc %s -emit-llvm -o %t
+
+extern "C" int printf(...);
+
+static int val;
+
+struct B {
+  B() : iB(++val) { printf("B()\n"); }
+  int iB;
+  ~B() { printf("~B(%d)\n", iB); --val; }
+};
+
+struct M : B {
+  M() : iM(++val) { printf("M()\n"); }
+  int iM;
+  ~M() { printf("~M(%d)\n", iM); --val; }
+};
+
+struct P {
+  P() : iP(++val) { printf("P()\n"); }
+  int iP;
+  ~P() { printf("~P(%d)\n", iP); --val; }
+};
+
+struct N : M, P {
+  N() { printf("N()\n"); iN = ++val; }
+  ~N() { printf("~N(%d) val = %d\n", iN, --val);  }
+  int iN;
+  M m;
+  P p;
+};
+
+int main() {
+  N n1;
+  N n2;
+}
-- 
2.40.0