Code cleanup.

Change-Id: I604fa83bb12081ffddb677d05f22b6a8e20db23a
diff --git a/lib/ExecutionEngine/Runtime.def b/lib/ExecutionEngine/Runtime.def
index 18e8602..e4a6875 100644
--- a/lib/ExecutionEngine/Runtime.def
+++ b/lib/ExecutionEngine/Runtime.def
@@ -93,7 +93,7 @@
 #if !defined(__i386__) && !defined(__SSE2__)
     DEF_LLVM_RUNTIME(__ashldi3)
 #endif
-#ifndef ANDROID // has one in bionic
+#if !defined(ANDROID) /* has one in bionic */
     DEF_LLVM_RUNTIME(__ashrdi3)
 #endif
 #if defined(__mips__)
@@ -111,7 +111,7 @@
 DEF_LLVM_RUNTIME(__ctzdi2)
 DEF_LLVM_RUNTIME(__ctzsi2)
 
-#ifndef ANDROID // no complex extension
+#if !defined(ANDROID) /* no complex extension */
     DEF_LLVM_RUNTIME(__divdc3)
 #endif
 
@@ -122,7 +122,7 @@
 #endif
 DEF_LLVM_RUNTIME(__divsi3)
 
-#ifndef ANDROID // no complex extension
+#if !defined(ANDROID) /* no complex extension */
     DEF_LLVM_RUNTIME(__divsc3)
 #endif