Initialize the cleanup.dst variable if necessary. Fixes PR3789.

llvm-svn: 67075

1 files changed, 15 insertions, 0 deletions

diff --git a/clang/test/CodeGen/cleanup-stack.c b/clang/test/CodeGen/cleanup-stack.c
new file mode 100644
index 00000000000..360f6e701be
--- /dev/null
+++ b/clang/test/CodeGen/cleanup-stack.c
@@ -0,0 +1,15 @@
+// RUN: clang -emit-llvm %s -o %t &&
+// RUN: grep "store i32 0, i32* %cleanup" %t | count 2
+void f(int n) {
+  int a[n];
+  
+  {
+    int b[n];
+    
+    if (n)
+      return;
+  }
+  
+  if (n)
+    return;
+}