Implements in IRgen gnu extensions missing LHS for
complex conditionals. Radar 8453812.

llvm-svn: 114376
diff --git a/clang/test/CodeGenCXX/gnu-conditional-scalar-ext.cpp b/clang/test/CodeGenCXX/gnu-conditional-scalar-ext.cpp
index dfd9d41..a3f9fd2 100644
--- a/clang/test/CodeGenCXX/gnu-conditional-scalar-ext.cpp
+++ b/clang/test/CodeGenCXX/gnu-conditional-scalar-ext.cpp
@@ -22,3 +22,25 @@
     abort();
 }
 }
+
+namespace radar8453812 {
+extern "C" void abort();
+_Complex int getComplex(_Complex int val) {
+  static int count;
+  if (count++)
+    abort();
+  return val;
+}
+
+_Complex int cmplx() {
+    _Complex int cond;
+    _Complex int rhs;
+
+    return getComplex(1+2i) ? : rhs;
+}
+
+int main() {
+  cmplx();
+  return 0;
+}
+}