--- /dev/null
+// RUN: env RC_DEBUG_OPTIONS=1 \
+// RUN: CC_LOG_DIAGNOSTICS=1 \
+// RUN: CC_LOG_DIAGNOSTICS_FILE=%t.log \
+// RUN: %clang -ccc-host-triple x86_64-apple-darwin10 -fsyntax-only %s
+// RUN: FileCheck %s < %t.log
+
+int f0() {}
+
+// CHECK: <dict>
+// CHECK: <key>main-file</key>
+// CHECK: <string>{{.*}}cc-log-diagnostics.c</string>
+// CHECK: <key>dwarf-debug-flags</key>
+// CHECK: <string>{{.*}}clang{{.*}}-fsyntax-only{{.*}}</string>
+// CHECK: <key>diagnostics</key>
+// CHECK: <array>
+// CHECK: <dict>
+// CHECK: <key>level</key>
+// CHECK: <string>warning</string>
+// CHECK: <key>filename</key>
+// CHECK: <string>{{.*}}cc-log-diagnostics.c</string>
+// CHECK: <key>line</key>
+// CHECK: <integer>7</integer>
+// CHECK: <key>column</key>
+// CHECK: <integer>11</integer>
+// CHECK: <key>message</key>
+// CHECK: <string>control reaches end of non-void function</string>
+// CHECK: </dict>
+// CHECK: </array>
+// CHECK: </dict>