This void is implicit in C++.

llvm-svn: 78848
diff --git a/llvm/lib/Target/ARM/ARMJITInfo.cpp b/llvm/lib/Target/ARM/ARMJITInfo.cpp
index 10c765c..a3866c8 100644
--- a/llvm/lib/Target/ARM/ARMJITInfo.cpp
+++ b/llvm/lib/Target/ARM/ARMJITInfo.cpp
@@ -51,7 +51,7 @@
 // control over register saving and restoring.
 extern "C" {
 #if defined(__arm__)
-  void ARMCompilationCallback(void);
+  void ARMCompilationCallback();
   asm(
     ".text\n"
     ".align 2\n"